ES2947943T3 - Door - Google Patents

Abstract

The invention relates to a door with a door leaf and a guide rail arrangement, wherein the guide rail arrangement comprises additional rails cooperating with guide means arranged in the region of a leading edge during an opening movement. of a piece of door leaf. which leads during the opening movement, said supplementary rails comprising a third section that extends linearly above the second section that extends linearly and approximately parallel thereto. (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Door

The present invention relates to a door according to the preamble of claim 1.

Such doors are used to close building openings with a height of 3.50 m or more, such as exist in the sector of industrial halls, storage halls, hangars or similar, where corresponding passage heights are required.

The individual door leaf members, hingedly connected to each other, travel during an opening or closing movement along an arcuate guide rail section, deviating between a vertical orientation, which they adopt in the closing position, and an orientation in general horizontal, which is adopted in the opening position. This makes it possible to move the door leaf without having to provide excessively much space for large-area closing elements that must be rotated. In corresponding doors, the opening movement is usually supported by a weight compensation arrangement, which generally has a spring arrangement.

The spring arrangement is tensioned during the closing movement by absorbing the potential energy emitted at the same time by the door leaf. The energy stored in the spring arrangement is then available to support the opening movement. For this purpose, the spring arrangement is usually coupled to the door leaf via a tension means. The traction means is, on the one hand, attached to the lower edge in the closing position of the door leaf and can be wound at its other end during the opening movement in a winding device.

For cost reasons, it has proven to be convenient to use a traction means in the form of a metal cable. Such a wire rope can be wound on a winding drum arranged above the arcuate section, undisturbed winding and unwinding of the wire rope being favored when the wire rope is guided during the winding operation in a spirally surrounding groove. the drum shaft and forming only one winding layer.

To support the opening movement, an electric motor drive can also be provided, which is coupled to the winding drum and, taking into account the support provided by the spring arrangement, is dimensioned so that the desired opening speed can be provided. , by rotating the winding drum around the drum axis, whereby the metal cable attached to the lower edge of the door leaf is wound on the winding drum and the door leaf is raised in its entirety.

In this drive concept, the electromotor drive is directly coupled to a winding drum running coaxially with respect to a winding shaft. There is talk of a shaft drive. The spring arrangement may have a torsion spring spirally surrounding the winding shaft, which is tensioned during a closing movement of the door leaf by rotating the winding shaft, during which the metal cable is also unwound from the door leaf. winding drum.

In another drive concept, the electromotor drive is coupled to a surrounding traction means, which usually extends above the building opening to be closed from the building opening towards the interior space of the building. The traction means may be guided on a drive rail, the electromotor drive being positioned in the area of the end remote from the building opening of the drive rail and being coupled to the endless surrounding traction means in such a way that it is carried out. this to a surrounding movement. The endless surrounding traction means is then coupled to a coupling arrangement which, on the other hand, is usually attached to the upper edge in the closing position of the door leaf so that it can pivot with respect to a pivot axis that They run parallel to the articulation axes. In this case we speak of a rail-guided drive.

Regardless of the drive concept, the spring arrangement can be designed as a torsion spring arrangement arranged above the building opening, wherein the winding drum can be arranged coaxially with respect to the torsion spring shaft. Drive arrangements and corresponding spring arrangements can also be used within the scope of this invention. In this sense, within the scope of this invention, use can also be made of known drive concepts and known designs of spring arrangements, possibly with torsion spring arrangements arranged above the building opening.

Regardless of the drive concept and the design of the spring arrangement, the individual door leaf members, as already mentioned above, run along the arcuate section of the guide rail and experience an acceleration there caused by the so-called polygonal effect. Correspondingly, the hinged connection between the individual door members and the guide rail arrangement is stressed with acceleration forces which lead, on the one hand, to wear and, on the other hand, to a generation of noise. The Acceleration forces caused by the polygonal effect depend, on the one hand, on the radius of curvature of the internal guiding surface of the arched section of the guide rail and, on the other hand, on the height of the door members in the direction of the lateral edges. In the case of doors for closing building openings with a height of 3.50 m or more, door leaf members such as having a height of 750 are used, in the sense of a reduction in the number of necessary door leaf members. mm or more, which leads to correspondingly high polygonal accelerations.

To reduce the forces that occur, it has already been proposed to increase the radius of curvature of the internal guiding surface of the arched section from originally approximately 360 mm to 400 mm or more. However, this increase in the radius of curvature in the internal guiding surface (internal radius) leads to a high space requirement for the overall construction, because above the opening to be closed a space with a height corresponding to the radius to accommodate the arched section. To eliminate this deficiency, it has already been proposed to place in the region of the edge, advanced during an opening movement, of the uppermost door leaf member, a guiding member that interacts with the guide rail arrangement, such that the distance of this guiding member with respect to an internal delimiting surface facing in the closing position to the closed space of the door leaf upon reaching the closing position becomes greater, in order to bridge the distance between the internal delimiting surface of the door leaf and an arched section of the guide rails. In this way, a vertical orientation of the door leaf in the closed position is possible even when the upper edge of the door leaf is arranged in the closed position between the arched sections arranged at least partially in the area of the side edges of the building opening of the guide rail arrangement. To this end, the guide member, usually implemented as a guide roller, was secured through a retaining element hingedly attached to the uppermost door member so that it can pivot with respect to a pivot axis running parallel to it. the hinge axes to the uppermost door member. Upon reaching the closed position, this retaining element was pivoted with respect to the uppermost door member in such a way that the distance between the guide roller or the axis of rotation of the guide roller and the internal boundary surface of the door was increased. the door leaf.

However, with an increasing radius of curvature of the arcuate section, the structural stress and mechanical load of the pivotable retaining element also increase. Furthermore, with an increasing radius of curvature the distance that the retaining element must span between the internal delimiting surface of the door leaf and the guide roller attached to the uppermost door leaf member in the closing position of the door leaf also increases. door leaf, which leads to instability of the overall construction.

In the doors according to Patents US 2012/018959 A1 and AU 521566 B2, it is provided that the arrangement of guide rails has complementary rails that interact with advanced guiding means placed in the area of the edge, advanced during an opening movement, of the member. of advanced door leaf during the opening movement, which have a third section that runs in a straight line, which runs above the second sections that run in a straight line, approximately parallel to them.

The present invention is based on the objective of avoiding as much as possible in generic type doors the blocking of the free wall opening.

According to the present invention, this objective is achieved by the improvement indicated in the characterizing part of claim 1 of the known doors.

Within the framework of the present invention, a disturbance-free winding and unwinding of a traction means of a weight compensation device supporting the opening movement of the door leaf is favored when the third section running in a straight line of the rail complementary, at its front end facing in the closing position of the door leaf to an internal delimitation surface facing the space closed with it of the door leaf passes to an end section that descends downwards, which ends at a distance in front of a plane, which contains the internal delimitation surface of the door leaf in the closed position. Thus, in the door leaf closing position, between the internal delimitation surface of the door leaf and the front end facing this internal delimitation surface of the downwardly descending end section of the complementary rail, It provides a space in which the traction means running between the winding drum arranged above the arched section and the lower edge of the door leaf can move during the winding operation. In this way, a winding operation is possible even without disturbance on the part of the guide rail arrangement when the winding drum has such an axial length that in the assembled state it passes through a plane containing the guide rail arrangement and runs perpendicular to the drum axis. In doors according to the present invention, a corresponding axial length is required when a length of cable corresponding to the height of the door leaf has to be wound thereon and sufficient space is not available for increasing the drum radius. The section between the plane, which contains the internal delimiting surface of the door leaf in the closed position, and the end facing this plane of the complementary rail is expediently more than 2 cm, preferably more than 5 cm. However, regarding the coupling described below of the guiding means placed in the area of the upper edge of the uppermost door member in the closing position, this distance is preferably less than 20 cm, in particular 15 cm or less. When the end section of the complementary rail ends at a distance in front of the internal delimiting surface of the door leaf in the closed position, this distance has to be bridged with the help of a retaining element placed on the internal delimiting surface of the door leaf. the door leaf in the area of the upper edge in the closed position of this delimiting surface. On the other hand, a corresponding distance between the guide element placed with the help of this retaining element on the internal delimiting surface of the door leaf and the complementary rail in the opening position of the door leaf would lead to an unwinding of the advanced door leaf member during an opening movement with respect to the rearward door leaf members and a corresponding bend. Such a bend can lead to damage in the area of adjacent edges of successive door leaf members.

For this reason, within the framework of the present invention, it is particularly preferred that the advanced guide means, that is to say the guide means placed in the area of the upper edge in the closed position of the door leaf, have a guide element housed in the complementary rail, such as for example a guide roller mounted rotatably with respect to an axis of rotation running approximately parallel to the hinge axes, which is hingedly attached to the advanced door member through a retaining element placed on the advanced door member during the opening movement in a pivotable manner with respect to a pivot axis running parallel to the hinge axes. With the help of such a retaining element, a construction can be implemented, in which the axis of rotation of the guide roller, in a first pivoting position, adopted in the closed position, of the retaining element, has a distance with respect to the internal delimitation surface of the door member advanced in the direction of the end section of the complementary rail, which during an opening movement of the door leaf is reduced by pivoting the retaining element.

Thus, the distance between the end section facing the internal delimiting surface of the door leaf in the closing position of the complementary rail and the internal delimiting surface of the door leaf itself can be bridged with the help of the retaining element in the closing position, the distance between the guiding element and the delimiting surface of the door leaf being reduced during the opening movement to avoid bending in the area of the edges facing each other of successive door leaf members. . The distance between the axes of rotation of the guide rollers of the advanced guide means and the internal delimitation surface of the door leaf can be adjusted particularly easily to avoid, as explained, bending in the opening position. on the one hand and bridge the distance between the front end of the end section of the complementary rail and the door leaf in the closed position on the other hand, when the retaining element is fastened to the advanced door member through a means fastening element that can be fixed with respect to the internal delimiting surface of the advanced door member, the retaining element being retained in the fastening means in a pivotable manner with respect to the pivot axis which preferably runs in a direction that runs perpendicular to the internal delimitation surface in the closed position displaced in the closed space with respect to the internal delimitation surface and/or the position of the fastening means can be chosen with respect to the door member advanced in a plane containing the surface of internal delimitation thereof, particularly in the direction of the lateral door leaf edges. In this regard, the position of the fastening means with respect to the internal delimiting surface of the door leaf member can be chosen and locked in the chosen position. To this end, the fastening member can be fastened, for example, by means of a screw connection to the internal delimiting surface of the door leaf member, the screws passing through corresponding oblong holes in the fastening means, which enable a sliding of the means. fastening with respect to the screws housed in the door leaf member and allow locking, when the screws are tightened according to the choice of the desired position.

Additionally or alternatively, the position of the pivot axis, with respect to which the retaining element is pivotally retained in the fastening means, can be adjusted and/or locked in a direction running perpendicular to the internal delimitation surface. of the door leaf.

In a particularly preferred embodiment of the present invention, the advanced guide means have two guide rollers mounted on the retaining element rotatably with respect to axes of rotation running parallel to the articulation axes. In this way, the movement of the door leaf can be stabilized in the area of the leading edge during the opening movement. When the guiding rollers of the advanced guiding means in the closed position are housed in the downwardly descending end section of the complementary rail and the pivoting axis of the retaining element is then arranged below the rotation axes of the guide rollers, then protection against sliding opening can also be implemented.

In the case of pressure on the upper edge of the uppermost door leaf member in the closing position, the rotation axis arranged between the pivot axis and the other rotation axis of the guide roller adjacent to the pivot axis forms a axis of rotation, with respect to which the retaining element in the case of pressure on the edge upper part of the door leaf is pivoted in such a way that the guide roller adjacent to the hinge axis is pushed against a lower guide surface of the downwardly descending end section, while the other guide roller, arranged on the side remote from the pivot axis of this rotation axis is pressed against the opposite side of the end section of the complementary rail, so that a wedge of the guide rollers takes place within the end section of the complementary rail, by which an opening movement is counteracted in the case of pressure on the upper edge of the uppermost door leaf member.

This locking action has been shown to be especially effective when a guide plane containing the axes of rotation of the guide rollers forms an obtuse angle with a pivot plane containing the pivot axis and the adjacent or more adjacent axis of rotation. close to the pivoting axis, this pivoting plane ascending in the closed position starting from the pivoting axis in the direction of the cutting line of the guiding plane and the pivoting plane with a greater slope than the guiding plane than in the Closing position preferably rises approximately parallel to a tangent to the end section of the complementary rail.

In order to avoid bending in the opening position of the door leaf, it has proven to be reasonable that the guiding plane, the pivoting plane and the pivoting axis are arranged so that the guiding plane in the opening position runs on the side facing the internal delimiting surface of the forward door leaf member of the pivot axis approximately parallel to the internal delimiting surface, preferably approximately coplanar thereto, thereby reducing the distance between the internal bounding surface of the advanced door leaf member and the axes of the guide rollers placed therein, so that the advanced door leaf member in the opening position is arranged approximately in the same plane as the door leaf members. setback door leaf, whose movement is guided with the help of the guide roller housed in the second section that runs in a straight line arranged under the complementary rail of the guide rail. It then only has to be provided that the distance of the axes of rotation of the guide rollers placed on the rearward door leaf members and of door leaf members corresponding to the internal delimitation surface approximately corresponds to the distance between the third guide rail section that runs in a straight line of the complementary rail and the second guide rail section.

As already mentioned at the beginning, in the doors according to the present invention it is especially preferred that a weight compensation device is provided that supports the opening movement with a traction means coupled to the lowermost door leaf member in the position closure, the traction means being able to be wound in the course of an opening movement in a winding device arranged above the arcuate section or behind an end remote from the arcuate section of the second section running in a straight line. As in conventional doors, the traction means may have a traction cable implemented for example as a metal cable and the winding device comprise a winding drum that can rotate with respect to a drum axis that runs parallel to the axes of joint with a guide groove that spirally surrounds the drum shaft in the drum jacket for the traction cable that must be wound therein during the opening movement. When the weight compensation device has a torsion spring arranged above the arcuate section of the guide rail arrangement or behind a remote end of the arcuate section of the second section running in a straight line, the drum shaft It can run coaxially with respect to the torsion spring axis. In this case, the torsion spring preferably surrounds a torsion spring shaft connected rotationally resistant to the winding drum.

Disturbance-free winding and unwinding of the traction cable can be achieved when a section of the traction cable, which connects the lowermost door leaf member with the cable drum, in the course of the opening movement, at its facing end to the cable drum, starting from an area facing the side edge of the door leaf of the cable drum, moves towards an area away from the side edge of the door leaf of the cable drum and, in this regard, reaches a plane that crosses the complementary rail and that runs perpendicular to and, if applicable, crosses the articulation axes. The space necessary for this is provided in the doors according to the present invention by terminating the complementary rail at a distance in front of the internal delimitation surface of the door leaf.

In a similar manner to what occurs in conventional doors, the cable drum of doors according to the present invention can also be coupled to a torsion spring arrangement arranged above the arched section and which must be tensioned during the movement. closing, the drum axis preferably running approximately parallel to the torsion spring axis.

Within the framework of an optimization of the movement properties of doors according to the present invention, it has been shown that the accelerations and forces caused by the polygonal effect only slightly decrease, when the internal radius of the arcuate section, in particular in the form of circular arc, of the guide rail amounts to more than 600 mm. Therefore, in the sense of an optimization of the movement properties with a simultaneous reduction of the space requirement, it has proven to be expedient that the internal radius of the arcuate section amounts to less than 800 mm, preferably less than 700 mm, in particular 600mm or less. Therefore, according to the present invention, it is particularly preferred that the internal radius is between 500 and 600 mm.

Naturally, the accelerations and forces caused by the polygonal effect also depend on the height of the door leaf members. Within the framework of further optimizations, it has been shown that the kinetics of the door leaf movement with a simultaneous limitation of the structural space is especially satisfactory when the internal radius ratio of the arcuate, preferably circular arc-shaped section of the door rail guided with respect to the height of at least one door leaf member, preferably all door leaf members, in a direction running parallel to their side edges amounts to more than 0.6, preferably more than 0.65, particularly preferably 0.665 or more, in particular 0.68, but less than 0.8, preferably less than 0.75, especially preferably 0.7 or less. In this regard, the height of the door member designates the height of the visible surface in the closed position in the assembled state of an individual door member. In the case of using door members with finger protection profiles on the upper and lower edges, as described for example in EP 370376 A, the height of a projection placed in the closed position in a recess in the lower edge of the panel disposed above in the region of the upper door member edge is not included in determining the door member height. The height of the door member can then also be determined so that the height is measured between the upper flank of the recess that receives the housing in the lower edge of the door member to the upper flank of the projection.

Therefore, the height of the door member in a door member arranged in the closed position between two door members designates the vertical distance between the hinge axes associated with this door member in the closed position.

Particularly good results were achieved with door leaf member heights in the range of 500 to 950 mm, in particular 600 to 900 mm, especially preferably 700 to 800 mm and internal radii in the range between 400 and 650 mm. , in particular between 420 and 600 mm, especially preferably between 480 and 530 mm, the range between 740 and 760 mm of door leaf member height and between 500 and 520 mm of internal radius having proven to be especially advantageous.

As already explained above, it is particularly advantageous if an electromotor drive device is provided coupled to the door leaf to cause movement of the door leaf. The kinetics optimized by optimizing the internal radius of the guide rails and the door leaf member heights of doors according to the present invention can also be used to cause opening and closing movement with a high speed. On the other hand, especially in the area of closing movement, it must be ensured that objects and people are not damaged or injured by the leading edge of the door leaf. Conventional closing edge protections are too slow at high door leaf movement speeds to ensure sufficient protection. For this reason, the door operating device according to the present invention is expediently designed so that the closing movement of the door leaf is automatically braked if the leading edge during the closing movement of the door leaf falls below a height of 2.50 m, below which there is to be feared, in particular, the collision of the forward edge of the door leaf with people who are in the movement path. If the movement of the door leaf is already slowed in this area, sufficient protection can still be provided even with a conventional closing edge protection.

In addition or alternatively to braking the movement of the door leaf, a light curtain arrangement can also be provided for the protection of doors according to the present invention, with which a space through which the door leaf edge passes can be monitored. door advanced during the closing movement and objects and/or people reaching this space can be detected. In response to a detection of objects and/or people, the movement of the door leaf can be slowed or stopped with the help of the light curtain arrangement.

As already explained in detail above, this invention is especially suitable in the door sector for closing building openings with a height of 3.50 m or more, in particular 4.0 m or more and a door leaf height correspondent. However, the present invention, as long as it relates to the creation of a space for the displacement movement of a traction cable during an opening movement of the door leaf, can also be used advantageously for garage doors. conventional.

A correspondingly designed garage door according to the present invention has a door leaf that can be moved along a predetermined path by an arrangement of guide rails between a closed position, in which it is arranged approximately in a vertical plane, and an opening position, in which it is preferably arranged inverted approximately in a horizontal plane, comprising a plurality of door leaf members arranged one after another in the direction of movement of the door leaf and connected in a manner articulated with each other with respect to articulation axes that run perpendicular to the predetermined path, the guide rail arrangement having two guide rails arranged in the area of the side edges that run parallel to the predetermined path of the door leaf , each of which has a first section that runs substantially in a straight line approximately parallel to a lateral edge of the door leaf in the closed position, approximately in the direction of gravity, and a second section, which runs substantially in a straight line approximately parallel to a lateral edge of the door leaf in the opening position, and an arched section that connects the sections that run in a straight line to each other, the arrangement of guiding rails presenting complementary rails that interact with advanced guiding means placed in the area of the advanced edge in the opening movement of the advanced door member during the opening movement, which have a third section running in a straight line, which runs above the second section running in a straight line approximately parallel to the same.

The improvement in the area of the garage doors is substantially characterized in that the third section that runs in a straight line passes at its front end facing in the closing position of the door leaf to an internal delimitation surface of the door leaf to a downwardly descending end section, ending at a distance in front of a plane, containing the internal delimiting surface of the door leaf in the closed position, and the advanced guiding means having a guiding element housed in the complementary rail, such as, for example, a guide roller mounted rotatably with respect to an axis of rotation that runs approximately parallel to the hinge axes, which are positioned in the door leaf member advanced through a retaining element placed on the door leaf member advanced during the opening movement, so that it can pivot with respect to a pivot axis running parallel to the hinge axes.

Also in this embodiment of the present invention, the distance between the plane containing the internal delimitation surface of the door leaf in the closed position and the end facing this plane of the complementary rail preferably amounts to more than 2 cm. , in particular more than 5 cm, but usually less than 20 cm, in particular less than 15 cm.

It has already been explained above that in the doors according to the present invention, protection against sliding opening can be implemented by special placement of the guide rollers arranged in the area of the upper edge of the upper door member through a locking element. pivotable retention. However, additionally or alternatively, protection against sliding opening can be achieved in the doors according to the present invention also when the complementary rail preferably has a housing made therein as a window-type recess to house, at least, a part of the advanced guidance means when reaching the closing position. The accommodation is provided in the area of the end section facing the door leaf in the closing position of the complementary rail. The guide means housed in the complementary rail can only be lifted out of the housing against considerable resistance. In this way, protection against sliding opening is achieved. The protection against sliding opening can be improved when the housing is associated with a stop arrangement that counteracts the movement of the guiding means housed in the housing in the opening direction. The stop arrangement in the area of the housing can span the guide rail and, in the closed position of the door leaf, rest on a roller axis of the guide means designed as guide rollers in the area of the upper edge of the member. of upper door leaf.

In some cases, the lower door leaf member in the open position protrudes into the free wall opening. This may be due, for example, to the fact that the arched guide rail section is arranged at least partially in the region of the free wall opening and the length of the second guide rail section is shorter than the height of the the door leaf. However, this arrangement may also be conditioned because the traction means arrangement configured to raise the sectional door from the closed position to the open position cannot completely raise the lower door leaf member to the horizontal plane. Such a traction means arrangement is generally composed of a traction means, for example, in the form of a traction cable or a traction chain, which is connected at one end to the lower edge of the blade member. of lower door, and whose other end is coupled to a traction mechanism through guiding and/or deviation rollers. The guide and/or deflection rollers are generally arranged at a distance from the lintel, which is smaller than the radius of the arcuate guide rail section. When the lower edge of the lower door leaf member reaches the arcuate guide rail section in the course of the opening movement, it reaches a position in which the traction means coupled to the lower edge and thus also the direction of The tensile force runs perpendicular to the arched guide rail section. The lower edge has then reached its final position during the opening movement, because with the help of the traction means and the traction force exerted therewith on the lower edge no further movement of the lower edge of the member can be caused. of door leaf in the opening direction. In this arrangement, the lower edge of the lower door leaf member is arranged in its final position in the arcuate guide rail section and blocks an area of the free wall opening. However, a recess of the door leaf into the free wall opening can also be intended to reduce the starting moment necessary at the beginning of the opening movement, although in this case an undesirable decrease in the opening movement must also be assumed. free wall opening.

With regard to the aforementioned problems, in the doors according to the present invention it is provided that a lower edge in the closed and retracted position during lifting of the door leaf can be raised separately, at least, upon reaching the opening position. by a pivoting movement of a lower door leaf element having this edge, in a lifting direction with respect to a door leaf element arranged above in the closing position and with respect to the predetermined trajectory.

Although the free height of the wall opening can be better utilized in the doors just described, long-term operation of these doors has shown that they are subject to high wear. In the doors according to the present invention, this deficiency is preferably addressed by an improvement, which is substantially characterized by a delimitation device that delimits the pivoting movement of the lower door leaf element in the lifting direction, at least along throughout a section of the default articles.

In this regard, advantage is taken of the knowledge that an additional degree of freedom of movement is introduced by the desired pivoting movement when reaching the opening position of the lower edge of the door leaf in the lifting direction, which in other phases of the movement. door leaf can act in a disruptive and wear-promoting manner. In the case of a closed door, the pivoting movement of the lower door leaf member in the lifting direction would cause an outward pivoting of the lower door leaf member with respect to the door leaf member disposed above the space that It is located in front of the door leaf. This outward pivoting can lead to abrasive bearing of the lower edge of the lower door leaf member on the side seals usually arranged in the region of the side edges during the opening movement, which leads to increased wear of the seals. side joints. The additional degree of freedom can otherwise lead to uncontrolled pivoting movement, which increases wear of the hinged connections between the door leaf members, of the lower edge of the lower door leaf member. This can be prevented, according to the present invention, by using the delimitation device. In this way, the wear of doors according to the present invention is reduced also when these doors are designed in such a way as to enable better use of the free wall opening.

The boundary device used in preferred embodiments of the present invention may be designed so that it is effective not only in the area of the first guide rail section and the first part of the arcuate guide rail section. , but also where a elevation of the lower edge of the lower door leaf element is desired, i.e. in the area of the end area adjacent to the horizontal guide rail section of the arched guide rail section. In this area, the lower edge of the lower door leaf member can be prevented by the boundary device provided according to the present invention from colliding with the deflection pulley or the deflection pinion for the traction means. Also in this way the operational reliability of the doors according to the present invention is improved.

The door leaf member advanced during the opening movement/delayed during the closing movement is hereinafter referred to as the “upper door leaf member”. The door leaf member retarded during the opening movement/advanced during the closing movement is called the “lower door leaf member”. If additional door leaf members are arranged between the upper and lower door leaf members, then these are called “intermediate elements”.

In a sectional door according to a preferred embodiment of the present invention, the lower edge of the lower door leaf member when reaching the open position does not follow the predetermined path described by at least one of the intermediate elements in the transition from the closing position to the opening position, but the lower edge of the lower door leaf member can be raised separately upon reaching the opening position compared to the door leaf members arranged above. Accordingly, the lower door leaf member can be moved in the direction of the plane, in which at least the intermediate elements are arranged. This plane is arranged above the head. This plane may be approximately parallel to the horizontal plane. The lower door leaf member can be arranged in the opening position completely in the plane of the intermediate elements, and can therefore be located completely in the lintel area. In this way the free wall opening is completely free. However, the lower edge of the lower door leaf member may also block an area of the free wall opening.

In addition, the starting moment required to initiate the closing movement can be generated by the separately lifting edge. In the opening position of the door leaf, the separately liftable edge of the lower door leaf member is higher compared to the lower edge of a conventional sectional door. This additional potential energy is transformed in the transition to the closing position into additional kinetic energy, which can facilitate and/or enable the initiation of the closing movement.

In one embodiment of the present invention, the door has a first pretensioning device that pushes the separately liftable edge of the lower door leaf member in the transition from the open position to the closed position towards the default path. In this way, a controlled movement of the door leaf in the transition from the opening position to the closing position can be achieved along the predetermined path. Furthermore, the first prestressing device can contribute to the generation of the starting moment necessary to initiate the closing movement, since it pushes the lower edge of the door leaf in the direction of the predetermined path. The first prestressing device may be arranged on the lower edge of the lower door leaf element. However, it can also be arranged at another point of the sectional door.

A further embodiment of the door according to the present invention is characterized in that, in the closed position of the door leaf, a second pretensioning device counteracts a movement of the edge that can be raised separately in a direction orthogonal to to the door leaf plane. In this regard, the second prestressing device may be the same as the first prestressing device. However, it may also be different from the first prestressing device. The second prestressing device may be provided at the lower edge of the lower door leaf member. However, it can also be arranged in another area of the sectional door leaf. By means of the second prestressing device, a satisfactory closure of the lower area of the free wall opening can be achieved. In particular, the second prestressing device can counteract a violent movement of the lower edge of the lower door leaf member in a direction orthogonal with respect to the door leaf plane, thereby preventing the formation of a gap between the door leaf member. door leaf and wall. This can improve theft protection in the space enclosed by the sectional door. Additionally, a movement caused by, for example, wind of the lower door leaf member in a direction perpendicular to the wall opening and a noise generation associated therewith can be counteracted.

In this embodiment of the present invention it is not necessarily necessary for the delimitation device to be effective already in the closing position of the door leaf. It is sufficient that the delimitation device becomes effective in an upper area of the vertical guide rail section and/or is only effective in an area facing the vertical guide section of the arcuate guide rail section.

As already mentioned above, a door according to the present invention can be guided along the predetermined path by an arrangement of guide rails. In this regard, the guide rail arrangement may have two guide rails arranged on opposite edges of the door leaf, and each guide rail may respectively have at least one vertical guide rail section running approximately parallel. in the direction of gravity, at least one guide rail section running overhead, preferably approximately in the horizontal direction, as well as at least one arcuate guide rail section that connects to each other the vertical guide rail section and the one that runs overhead. The overhead guide rail section and the arcuate guide rail section can be configured separately from each other. However, the overhead guide rail section and the arcuate guide rail section can also be designed in one piece. The overhead guide rail section can be oriented approximately horizontally. However, it can also form an angle a > 0 with the horizontal. Such a guide rail arrangement is particularly suitable when the space to be closed with the door leaf has a high height but a low depth.

In a sectional door according to the present invention, on each side facing a guide rail of the door leaf member having the separately liftable edge, at least one guide element may be arranged on the lower edge of the door. this door leaf element. In this way, the door leaf can be guided particularly reliably along the predetermined path. Additional guiding elements may be arranged on the upper edge of the door leaf member. This can further improve the guidance of the door leaf along the predetermined path.

In a further embodiment of the present invention, in the open position, the liftable edge of the door leaf member, in a direction running perpendicular thereto, may be further apart from a guiding element arranged in this door leaf member than in the closed position and be raised upward with respect to the guiding member. Since the guide element is arranged in the guide rail arrangement, the lower edge of the door leaf can therefore be arranged above the guide rail arrangement. In a case, in which the guiding element arranged on the lower door leaf member in the opening position is arranged on the arcuate guide rail segment, the lower edge of the lower door leaf member in the opening position opening may be raised upward with respect to the arcuate guide rail segment.

A further embodiment of a sectional door according to the present invention is characterized in that the separately liftable door leaf member is connected to the guide element through a lever arrangement that enables a variation of the distance between at least one guiding element disposed on this door leaf member and the door leaf member. The hinge arrangement allows a lifting of the lower edge of the door leaf and a return of the edge to a position, in which the distance between the guide element and the door leaf member is minimum.

The lever arrangement may have a recess provided in the door leaf member. A pivot lever of the lever arrangement may be pivotally connected to the housing. The pivoting lever may be connected to a guiding element disposed in this door leaf member with respect to a pivoting axis.

The housing may have a housing base running substantially parallel to the plane of the door leaf member. The housing base may be connected to the door leaf member. This connection can take place, for example, via a screw connection. The housing may furthermore have first and second housing side walls, which extend upwardly from the housing base orthogonally to it and in the closed position run approximately in the direction of gravity. The housing may be made of metal, for example. The housing side walls and the housing base may be configured in one piece.

The housing can accommodate the pivot lever. The pivoting lever may be attached to the housing side walls. The clamping may take place via a stem which runs approximately perpendicular to and between the housing side walls. The stem may be mounted in recesses or openings in the housing side walls. The stem may be rotatably mounted.

The pivot lever pivotably coupled with the housing through the stem may extend from the stem to the bottom edge of the door leaf member. The pivot lever may have a pivot lever base and pivot lever side walls. The pivot lever base can be supported on the housing base in a state in which the pivot lever is completely received in the housing. The pivoting lever base can then run parallel to the housing base. The pivot lever side walls may extend orthogonally away from the pivot lever base and extend in a direction connecting the upper and lower edges of the door leaf member.

The pivot lever may be connected to the stem in an area of a first end through the pivot lever side walls. The second end of the pivot lever opposite the first end of the pivot lever may be connected with a guide element. In one case, where the guiding element is a rolling roller, the axis of the rolling roller may be arranged in a tubular section provided at the second end of the pivoting lever.

The operation of the lever arrangement is as follows: in a guiding position, the housing base and the pivoting lever base rest on each other. The guide member is then disposed adjacent the lower edge of the lower door leaf member. The lower edge of the lower door leaf element is then guided in the predetermined path by the guide rails. In the transition of the door leaf from the closed position to the open position, the pivot lever base can be moved by pivoting the pivot lever with respect to the housing to a pivot position, provided that the device of delimitation allows it. In the pivoted position, the lower edge of the lower door leaf member is moved away from the guide element. The lower edge of the lower door leaf member is then separated from the guide element. Due to the configuration of the housing and the pivot lever, the lower edge of the door leaf can only be raised upwards relative to the guide element. A downward descent is not possible. If the door leaf is moved back from the open position to the closed position, then by pivoting the pivoting lever with respect to the housing the lower edge of the lower door leaf member is guided back from the position pivoting to the guiding position. The lower edge of the lower door leaf member can then be guided back along the predetermined path to the closing position.

In a further embodiment of the present invention, the first and/or second pretensioning device may, interacting with the lever arrangement, push the separately liftable edge of the door leaf member during movement to the closing position toward the predetermined path and/or, in the closing position, pushing it to a position that completely closes the wall opening. If the door leaf member having the separately liftable edge is pushed by an interaction of the first pretensioning device and the lever arrangement during movement to the closing position towards the predetermined path, then the door leaf It can be moved particularly safely from the open position to the closed position. Furthermore, through this interaction of the first prestressing device with the lever arrangement, it can contribute to the generation of the starting moment necessary to initiate the closing movement. Furthermore, a generation of noise can be suppressed, which occurs because the lower edge of the door leaf can move approximately orthogonally to the predetermined path. By the interaction of the second pretensioning element with the lever arrangement, the lower door leaf member can be pushed into a position in the closing position that completely closes the wall opening. In this way, a particularly secure closure of the closed space with the door leaf can be achieved. Furthermore, noise generation due to a reciprocating bottom edge, for example due to air pressure, orthogonal to the vertical plane, of the door leaf member can be prevented. This can also be achieved when the boundary device is not effective in the closed position. In this regard, the first prestressing device and the second prestressing device may be identical or different from each other. This can also be achieved when the boundary device is not effective in the closed position.

In one embodiment of the present invention, the first and/or the second pretensioning device may have a spring element. The first and/or second pretensioning device may have a torsion spring. The lower edge of the lower door leaf member can then be pushed due to a spring force during movement to the closing position towards the predetermined path. In the closed position, the lower edge of the door leaf can be pushed by spring force to a position that completely closes the wall opening. The torsion spring may be provided on the stem of the linkage arrangement. The torsion spring may have three flanks. The first and third flanks may be configured at opposite ends of the cylindrical shaped torsion spring. The second flank may be configured approximately in the center between the first and the second flank. The first and third flanks may be supported on the pivot lever. In this regard, the flanks may be supported on the pivot lever base. The second flank may be supported on the housing. In this regard, the second flank can be supported on the housing base. The second flank can be configured in a U-shape. By such an arrangement, the lower edge of the lower door leaf member can be pushed particularly reliably in the transition from the opening position to the closing position towards the predetermined trajectory and in the closing position be pushed to a position that completely closes the wall opening.

In a further embodiment of the present invention, a traction means that raises the door leaf from the closed position to the open position may be connected at one of its ends to the lower edge of the door leaf and be coupled at its other end with a weight compensation device, and the traction means can counteract the first prestressing device.

In the case of the traction means, it can be, for example, a chain or a cable. The traction means can extend upwards in the closing position of the door leaf starting from the lower edge of the door leaf in the vertical direction. When the weight compensation device, such as, for example, a torsion spring arrangement, is arranged in the far end region of the arcuate guide rail section of the horizontal guide rail section, the traction means it can be deflected via a deflection element placed in the lintel area and extend from the deflection element approximately in the horizontal direction or parallel to the overhead guide rail section to the compensation device of weight. The deflection element can be a chain sprocket and the traction means can be configured as a chain in a first area, which faces the lower edge of the door leaf. In a second area, which faces the weight compensation unit, the traction means can be configured as a cable. The traction means may be made of metal.

In the doors according to the present invention it is possible to arrange the deflection element made, for example, as a chain sprocket in the vicinity of the lintel and attach it, for example, to the frame that retains the vertical guide segment and/or to the wall that presents or is adjacent to the wall opening. This enables a stable fastening of the deflection element in the area of structural elements present anyway or of the wall. This arrangement is possible in doors according to preferred embodiments of the present invention without impairing the passage height, when the lower edge of the lower door leaf member can be raised separately and this pivoting movement in the lifting direction is not is affected by the guide roller placed in the area of the lower edge, as is the case with conventional doors. In these doors, the tensile force of the traction means, as explained above, acts perpendicular to the arcuate guide rail segment when the deflection element is arranged in the vicinity of the wall opening. A continuation of the opening movement is then no longer possible.

The weight compensation device serves to facilitate the opening movement by pushing the door leaf, at least in the closed position, towards the open position. The weight compensation device can also prevent uncontrolled closing movement, thereby complying with relevant safety regulations. The weight compensation device may comprise a mechanical spring, for example a tension spring or a torsion spring, which acts via the tension means on the door leaf. The weight compensation device is usually tensioned during the closing movement of the door leaf under the action of the force of gravity with the help of the weight of the door leaf. With the spring tension thus generated, the opening movement is then supported.

Next, the movement of the door leaf of a sectional door from the closed position to the open position will be described, the door leaf being lifted by the traction means. In this regard, the traction means intervenes on the lower edge of the door leaf in order not to overload the articulated connections of the door leaf members during the opening movement. Rather, by this arrangement it is possible for the individual door members to abut each other during the opening or closing movement and to be generally retained by the pulling means attached to the lower edge of the door leaf. The traction means is guided through deflection rollers so that, during the entire opening movement of the door leaf, a force acts on the lower edge of the lower door leaf member, which is directed upwards approximately at parallel to the direction of gravity. In the closed position of the door leaf, the lower edge of the lower door leaf member is pushed by an interaction of the hinge arrangement and the second pretensioning element (which may be identical to the first pretensioning device) to a position that completely closes the wall opening. The lower edge of the lower door leaf member It is arranged adjacent to the guiding element disposed on this door leaf member. The guide element can be configured, for example, as a rolling roller. The guide element is arranged in the guide rail arrangement and is guided by it.

Now, the door leaf member is raised upward by the traction means. The guide element arranged at the lower edge of the lower door leaf member then moves due to forced guidance by the vertical guide rail segment approximately in the vertical upward direction. Due to the interaction of the first prestressing element, for example a torsion spring, with the hinge arrangement, the lower edge of the lower door leaf member also follows the path of the guiding element. The lower edge of the lower door leaf member and the guide element jointly follow this vertical path until the guide element enters the arcuate guide rail segment. Due to the forced guidance by the arcuate guide rail segment, the guidance element continues to follow the arcuate path of the guide rail arrangement. However, the tensile force of the tensile means continues to act on the lower edge of the lower door leaf member approximately parallel to the upward direction of gravity. Since the hinge arrangement allows a pivoting of the lower edge of the lower door leaf member with respect to the upward guide element, the lower edge of the lower door leaf member is consequently raised upward, as and/or until the delimitation device allows it. The lower edge of the lower door leaf member is then separated from the guide element in the vertical direction. The free wall opening is thus additionally freed. The upper door leaf member and the intermediate elements are in this state arranged in an inverted position predetermined by the overhead guide rail segment.

This opening movement can take place with the backrest of the pre-tensioned weight compensation device. The traction means can counteract the first pretensioning device during lifting of the door leaf, possibly supported by the weight compensation device. The pretensioning device can be pretensioned by the tensile force of the tensile means. This prestressing force can contribute to the generation of the starting element necessary to initiate the closing movement, thereby enabling and/or supporting the transition of the door leaf from the open to the closed position.

In addition to the overhead guide rail segment, a second overhead guide rail segment may be arranged above the first overhead guide rail segment. This second overhead guide rail segment can accommodate at least the upper edge of the upper door leaf member. In this way the lintel height can be additionally reduced. While in the opening position of the door leaf at least the intermediate elements lie approximately in one plane, the lower door leaf member is inclined with respect to this plane. The lower door leaf member forms an acute angle with the plane of the intermediate elements e.g. In a conventional sectional door without a separately liftable edge, the lower door leaf member lies in a plane, which is tensioned by the upper edge of the lower door leaf member and the guiding element arranged in the segment. of arched guide rail. In a sectional door according to the present invention with a separately liftable edge, the lower edge of the door leaf is moved upward relative to the guide element. Thereby, the acute angle p that the lower door leaf member forms with the plane of the intermediate elements is reduced. Accordingly, the free wall opening is additionally released.

The delimitation device used in preferred embodiments of the present invention can be made particularly compact when it has delimitation elements dragged by the door leaf during the movement of the door leaf. In this case, it is not necessary to provide a boundary device that extends over the entire height of the door leaf in the area of the wall opening.

In this context, it has proven to be particularly convenient for the traction means, such as, for example, a roller chain, to be coupled to the lower edge of the door leaf via a coupling device positioned on the lower edge in such a way. pivotable with respect to a pivot axis running parallel to the articulation axes, the pivot axis being arranged in the closed position preferably below the lever axis, with respect to which the pivot lever can be pivoted with the guide roller with respect to the lower edge of the lower door leaf member. By pivoting the coupling device, it is possible for it, under the pulling action of the traction means upon reaching the opening position, to be pivoted relative to the lower door leaf member in a direction opposite to the lifting direction. , so that the hinge point of the traction means in the coupling device is pivoted upward with respect to the lower edge of the lower door leaf member upon reaching the open position. That is to say, then both the lower edge of the lower door leaf member is pivoted upward with respect to the door leaf member arranged above in the closing position in the lifting direction, and the coupling device in a direction opposite to the lifting direction. At this point it is indicated that the pivoting lever, during a pivoting movement of the lower edge of the lower door leaf member with respect to the door leaf member arranged above in the closing position in the lifting direction, becomes pivot with respect to the lever axis in a direction opposite to the direction of elevation or in an opposite direction of rotation.

Taking advantage of this kinetics, the delimitation device can be made in a particularly compact manner when it has a delimitation element associated with the coupling device and which can be pivoted with it with respect to the pivoting axis and a delimitation element associated with the arrangement. lever and that it can be pivoted with respect to the lever axis. By means of the distance between the lever axis and the pivot axis on the one hand, as well as the arrangement of the delimitation elements, on the other hand, the area in which the delimitation device is effective can be individually adjusted.

In the aforementioned compact embodiment of the delimitation device, one of the delimitation elements may have a delimitation slide that at least partially surrounds the lever axis and/or the pivot axis, the other delimitation element being made as an element stop, which during a pivoting movement of the lower door leaf member in the lifting direction comes into contact with the boundary sliders.

The delimitation slide may have a collar extending from a retaining element that extends approximately perpendicular to the articulation axes of the coupling device transversely, in particular approximately perpendicular thereto, while the stop element may be placed on the pivot lever and during pivoting movement of the lower door leaf member in the lifting direction or during a pivoting movement of the pivoting lever relative to the lever axis in a direction opposite to the lifting direction comes into contact with the delimitation surface facing the pivot axis of the delimitation slide.

The delimitation device primarily serves to delimit an uncontrolled and unwanted movement of the lower edge of the lower door leaf member with respect to the door leaf member arranged above in the closed position or with respect to the rail arrangement. guide before reaching the opening position. However, it must also enable the desired pivoting movement of the lower door leaf edge in the lifting direction upon reaching the opening position. For this reason, according to the present invention it is preferably provided that the stop element, during the opening movement of the door leaf, at the latest upon reaching the opening position, is released from the boundary slider. The limit slider therefore surrounds the pivot axis or the lever axis only partially, so that the pivoting movement of the limit slide during the opening movement leads to a release of the stop element. In this regard, the radial distance of the limiting slide with respect to the pivot axis can be increased in a surrounding direction opposite to the elevation direction of the pivot slide with respect to the pivot axis. In this way, it can also be achieved that the pivoting slide forms a feeding hopper, which facilitates contact in the correct position of the stop element with the pivoting slide during the closing movement of the door leaf.

As soon as the stop element is released from the pivot slide, the lower edge of the lower door leaf member can be pivoted upward freely without additional measures in the lifting direction. This leads to the risk that the lower edge of the lower door leaf member in the course of the pivoting movement in the lifting direction abuts the deflection element possibly arranged in the lintel area of the wall opening to the traction medium. This unwanted stop can be avoided when the delimitation device has a stationary guide surface which, upon reaching the opening position, interacts with a delimitation element placed on the lower edge of the door leaf, such as for example a guide roller. which can be rotated around an axis of rotation that runs parallel to the articulation axes. This stationary guide surface can be placed on the wall presenting the wall opening and extend obliquely upwards in the upper area of the wall opening, in particular in the area of the arched guide rail section.

As already mentioned above, conventional doors may have a pushing device positioned at the remote end of the arched guide rail segment of the horizontal or overhead guide rail segment and supported in the open position. on the edge, advanced during an opening movement, of the door leaf. Such a pushing device can also be used within the scope of the present invention to push the guiding element placed on the lower edge of the door leaf in the opening position against the guiding surface.

As already explained above, an electromotor drive device is usually used to support the movement of the door leaf, which can be coupled to the winding drum (in the case of the winding drum arrangement above the arcuate section). or to the deflection device (in the case of the arrangement of the winding drum behind the second guide rail section). Particularly in the case of large and heavy doors, to obtain the turning moment necessary for the movement of the door leaf it is necessary to use a reduction gear, with which the number of revolutions of the motor shaft is reduced and at the same time the available turning moment is increased. Helical gears are usually used for this purpose. Such helical gears have the additional advantage that they act in a self-braking manner. Therefore, with such doors the use of additional protective measures to protect deficiencies in the weight compensation device can generally be dispensed with. When the weight compensation device is damaged, for example, by the breakage of the spring elements, this leads to a reduced support of the opening movement by the electromotive drive arrangement and thus also to a high absorbed power of the electric motor. This is recognized by the motor control. This can then trigger an automatic engine shutdown.

In the recent past, in addition to requirements regarding safe room closure, high requirements regarding thermal properties have also been raised for sectional doors. Excessive heat loss in the area of the wall opening closed by the door leaf must be avoided. In view of these requirements, thermal insulation materials can be used both in the area of the door leaf and in the area of a door frame.

During the operation of known sectional doors, it has been shown that in many cases high wear of the gear arrangement occurs. Furthermore, the requirements regarding the reduction of heat loss through the building opening that is to be closed with the door often cannot be satisfactorily met.

In view of these problems in the prior art, the present invention is based on the objective of providing an electromotively operated sectional door, with which long-term operation can be guaranteed without prejudice to the thermal properties.

Within the framework of this invention, these problems can also be solved when the relationship, hereinafter called polygonal relationship, of the radius of curvature of the arched section on an internal guiding surface thereof with respect to the height, at least, of a door member, in particular with respect to the height of all door members, along a direction running perpendicular to the hinge axes and approximately parallel to the predetermined path amounts to 0.6 or more, preferably 0.65 or more, especially preferably about 0.665 or more, in particular about 0.68.

In this regard, use is made of the knowledge that the observed high wear of the gear arrangement of drive devices for sectional doors can in many cases be attributed to the failure to recognize the breakage of individual springs of the weight compensation device. An unrecognized spring break does not ultimately result, in terms of the properties of the usually self-braking worm gear with an inclination angle of 2.5 ° or less, in an immediate gate drop, but in high gear wear. , when the doors continue to be operated without recognizing the breakage of individual spring elements. The doors are then no longer optimally weight compensated. This can lead to the helical toothing wearing out, the teeth becoming thinner and possibly breaking during operation and/or no longer being able to absorb the next spring break.

This is the result of poor recognition of deficiencies of the weight compensation device by motor control. The motor control has to be designed to tolerate the forces and force variations that occur during regular operation of the door, or the fluctuations in the powers absorbed by the electric motor during regular operation of the door. The forces that appear during regular operation and the forces that jointly determine the absorbed power of the electric motor are determined, among others, by the so-called polygonal acceleration. Regardless of the drive concept and the design of the spring arrangement, the individual door leaf members pass through the arched section of the guide rail and experience an acceleration there caused by the so-called polygonal effect. This acceleration influences the power absorbed by the electric motor. However, the fluctuations in the absorbed power caused in this way cannot lead to an influence on the door drive. Tolerances in motor control have to be designed with a corresponding magnitude. The acceleration forces caused by the polygonal effect depend, on the one hand, on the radius of curvature of the internal guiding surface of the arched section of the guide rail and, on the other hand, on the height of the door members in the direction of the lateral edges.

Within the scope of the present invention it has been recognized that a motor control, with which the breakage of a comparatively small element of the spring arrangement as part of the weight compensation device, for example a single spring, can also be recognized, with a turning moment of only 50 Nm, when the ratio, also referred to as polygonal ratio in the context of this description, of the radius of curvature of the arcuate section on an internal guiding surface thereof with respect to the height is at least , of a door member along a direction running perpendicular to the hinge axes and approximately parallel to the predetermined path amounts to 0.6 or more, in particular 0.65 or more. This enables early recognition of deficiencies of the weight compensation device and a responsive disconnection of the drive device, before excessive wear of the gear arrangement occurs due to the high forces that occur in the case of a breakage of individual spring elements. In general, long-term operation of the doors according to the present invention can thus be guaranteed without the risk of excessive wear.

Using doors according to the present invention, the thermal properties can also be improved, by raising the door travel speed of sectional doors. The reduction of the polygonal accelerations at a given door running speed also makes it possible to increase the door running speed without an excessive increase in the polygonal accelerations and the forces caused by this. In this way, heat losses that occur in the door area can also be reduced. This point of view of the present invention is based on the knowledge that the often only moderate thermal properties in the area of sectional doors are not attributable primarily to the deficiency of the thermal insulation of the doors, but to the fact that the accelerations Polygonals limit the door travel speeds, so that opening and closing the doors takes so much time that excessively high heat loss occurs. By means of the preferred setting of the polygonal ratio in the context of the present invention, an acceleration of the door leaf movement can be achieved with a constant precision of the motor control. In this way the thermal properties of the doors according to the present invention can be improved.

However, it has been shown that an acceleration of the door leaf movement due to an increase in the number of engine revolutions can in turn lead in many cases to early wear of the gear arrangement. According to a further point of view of the present invention, to which its own inventive step corresponds, this deficiency is addressed by using a gear arrangement, which has a self-locking or self-braking helical gear and reduction gear coupled to the electric motor, in particular with an angle of inclination of approximately 2.5 ° or less, to which a multiplication gear coupled to the output shaft of the helical gear, such as for example a chain gear, is connected downstream. In this regard, the multiplication ratio, i.e. the ratio, at which the output speed of the worm gear is increased by the chain gear to obtain a high speed in the area of the cable drum or device deviation, it may have 1:1.5 or more, in particular 1:2 or more, especially preferably 1:3.5 or more.

That is, therefore, according to this view of the present invention, between the electric motor and the cable drum or the deviation device of the weight compensation arrangement, firstly, a reduction gear is arranged, and Then a multiplication gear is provided. With the helical reduction gear, the number of engine revolutions is reduced and at the same time the torque is increased. The helical reduction gear has self-locking or self-braking properties, which allow independent braking or protection devices to be dispensed with in the event of damage to the weight compensation device. A multiplication gear is connected downstream of the helical reduction gear, which in turn increases the output speed of the helical gear to obtain a faster door running speed.

Within the framework of the present invention it has been recognized that the deficiencies observed in the area of the helical gear are also attributable to the fact that a high number of engine revolutions to obtain a faster door operation leads to a high sliding speed on the circumference. primitive of the worm screw and the worm wheel, which depending on the pairing of materials can lead to wear, because a breakage of the lubricating film can occur. In this regard, the number of revolutions, at which the breakage of the lubricating film takes place, naturally depends on the temperature, the oil used, the distance between the worm wheels and the worm and, in general, of gear multiplication. In any case, these deficiencies can be eliminated when a multiplication gear is arranged downstream of the worm gear, such as, for example, a chain gear that does not have comparable wear properties, in order to achieve the desired number of revolutions in the area of the weight compensation device or the cable drum and thus also the desired opening and closing speed.

This invention also makes it possible to use identical drive modules, composed of an electric motor and helical gear, for the drive of large and heavy doors at high speed, as well as small and light doors also at high speed. For large and heavy doors, correspondingly large cable drums can also be used to increase speed, because sufficient installation space is usually available with large doors. The use of a multiplication chain gear can then possibly be dispensed with. Known two-stage gear arrangements with a helical reduction gear and possibly a chain reduction gear can be used, as described for example in WO 2012/089358 A1. However, the same drive module can also be used in connection with small, lightweight doors, where usually only little installation space is available and therefore only small cable drums are used. For small, lightweight doors with small cable drums, the desired opening and closing speed can be achieved by means of a correspondingly multiplying gear or chain gear.

When a speed at the output of the gear arrangement of only 80 revolutions per minute is sufficient for a large door and can also be achieved without excessive wear of the helical gear, with the help of a multiplication chain gear with a ratio With a ratio of 1:2 or more, a speed of 160 revolutions per minute and a correspondingly high door leaf speed can be achieved.

As already mentioned, gear arrangements with a helical reduction gear and a chain gear connected downstream are described for example in WO 2012/089358 A1. In this document, only reduction chain gears are used, and the reduction ratio of the chain gear can be adjusted depending on the door leaf. According to this document, the drive gear ratio is selected depending on the respective door gear, i.e. the size of the cable drum, so that the travel of the door leaf at least in the area of the end position of closing is substantially constant per revolution of the electric motor in the case of different door gears. This document does not mention either an influence of the thermal properties due to the gate speed or the optimization of the thermal properties while ensuring satisfactory wear resistance of the drive module by using a multiplication gear after the self-locking worm gear.

As explained above, within the framework of the present invention, a polygonal ratio of 0.6 or more is chosen, both with a view to optimizing the thermal properties of a door and with a view to the high wear resistance sought, preferably 0.65 or more, especially preferably about 0.665 or more, in particular 0.68. The individual door members should, in particular in the case of particularly high doors with a height of 3.50 m or more, also have a height of 400 mm or more in order to maintain the required number of door members in tolerable limits, within the framework of the present invention it has proven to be convenient when the polygonal ratio for at least one door member amounts to 0.8 or less, preferably 0.75 or less, particularly preferably 0.7 or less. In this way, the internal radius of the arched section can still be kept within tolerable limits, which makes it possible to adapt it to the usual installation circumstances, without the arch protruding too far into the door opening.

Within the framework of an optimization of the polygonal ratio, it has been shown that above a polygonal ratio of approximately 0.68, only a slight reduction in the polygonal accelerations is observed. For this reason, the choice of a polygonal ratio in the range between 0.6 and 0.7, in particular in the range of approximately 0.68, is especially preferred. In doors with a door member height of approximately 750 mm an internal radius of approximately 510 mm has proven to be preferable.

As already mentioned above, within the framework of the present invention it has proven to be convenient that the weight compensation device has at least one spring arrangement coupled through a traction means to the lowest door member in the closed position, the traction means being able to be wound on a winding drum preferably arranged above the arched section of the guide rail arrangement.

In the just described embodiments of the present invention, the drive device may also be coupled to the winding drum or to a deflection device for the traction means, such as for example a chain sprocket. Within the framework of the present invention, in the sense of an optimization of the polygonal relationship with a simultaneous use of door leaf members with a minimum height necessary for the reduction of the necessary number of door leaf members, sections are preferably used arched with a radius of curvature on an internal delimiting surface thereof (internal radius) of 400 mm or more, preferably 420 mm or more, especially preferably 450 mm or more, in particular 600 mm or more. In view of the installation space usually available above the space opening to be closed with the door leaf, it has proven to be expedient for the internal radius to be 800 mm or less, especially 760 mm or less. The height of at least one door leaf member may be 550 to 950 mm, in particular 600 to 900 mm, particularly preferably 700 to 800 mm.

With regard to the thermal properties mentioned above or with regard to avoiding excessive heat loss in the area of the opening to be closed with the door leaf, within the framework of the present invention it is particularly preferred that the electric motor and the Gear arrangement, possibly interacting with the cable drum and the deflection pinion, are designed to generate an opening or closing speed of 0.6 m/s or more, in particular 1 m/s or more.

Although a high opening and closing speed can be achieved with doors according to the present invention, care must also be taken, especially during the closing movement, to ensure that objects and people are not damaged or injured by the leading edge of the door leaf. . Conventional closing edge protections are too slow at high door leaf movement speeds to ensure sufficient protection. For this reason, the door motor control according to the present invention is expediently designed so that the closing movement of the door leaf is automatically braked when the leading edge during the closing movement of the door leaf falls below a height of 2.50 m, below which the collision of the forward edge of the door leaf with people who are in the movement path must be feared in particular. If the movement of the door leaf is already slowed in this area, sufficient protection can also be provided with a conventional closing edge protection. In addition or alternatively to a braking of the movement of the door leaf, for the protection of doors according to this In the invention, a light curtain arrangement can also be provided, with which a space traversed by the advanced door leaf edge can be monitored during the closing movement and objects and/or people reaching this space can be detected. In response to a detection of objects and/or people, the movement of the door leaf can be slowed or stopped with the help of the light curtain arrangement.

According to the present invention it may be provided that multiplication chain gears are used. In combination with the helical reduction gear, this can lead not only to a high door operating speed, but also to a high acceleration of the door leaf. However, high acceleration forces lead to high wear. For this reason, it can be provided that the motor control for starting and braking the door leaf can be operated from a rest position or from an operating position, in which the door leaf moves with a maximum speed. , according to a predetermined acceleration profile. This controlled acceleration and braking is also called the “S-ramp.” Through proper motor control, excessive wear in the gear and door area can be avoided. In all embodiments of the present invention a frequency controlled electric motor can be used which allows for complex motor control.

The present invention will now be explained with reference to the drawings, to which reference is made expressly for all details essential to the present invention and not set forth in more detail in the description. In the drawings they show:

Figure 1 a representation of a detail of a door according to the present invention in the closed position,

Figure 2 a representation of a detail of the door according to Figure 1 in the open position, Figure 3 a sectional representation of a door according to the present invention in a horizontal section plane containing the drum axis of a drum winding for a charging cable, figure 4 a representation to illustrate the kinematics of conventional doors,

Figure 5 a representation to illustrate the kinematics of doors according to the present invention, Figure 6 a comparative representation based on Figures 3 and 4.

Figure 7 a delimitation device for a door according to the present invention in the closed position, and Figure 8 the delimitation device according to Figure 7 in the open position.

In Figure 1 the upper edge of an uppermost door leaf member 10 is shown in the closed position. The door comprises a running track with an arched running track section 100 and two sections running in a straight line not shown in Figure 1, one of which runs approximately in the direction of gravity and parallel to the leaf edge. of side door in the closing position and the other runs approximately in the horizontal direction and parallel to the edge of the side door leaf in the opening position. The door further comprises a complementary rail 200 with a front end section 210 descending downwards in the direction of the door leaf, when the latter is in the closed position, which is arranged above the arched section 100 of the rail. rolling.

In the embodiment shown in the drawings of the present invention, the internal guiding surface 120 of the arched section 100, which serves to guide rolling rollers placed on door leaf members not shown in the figure, arranged by below the door leaf member 10, it has a radius of curvature of 510 mm. Rolling rollers not shown in the drawings, positioned on lower door leaf members, roll on the internal guiding surface 120 of the arched section. On the upper edge of the door leaf member 10, which in the closed position is the uppermost door leaf member of the door leaf, running rollers 60 and 62 are arranged, which are guided on the running rail. complementary 200. For the positioning of the rolling rollers 60 and 62, a retaining element 50 is provided, which is articulatedly connected to a clamping bracket 20 that serves as a clamping means pivotably with respect to a pivoting axis. 24.

The retaining element 50 is hingedly connected to the retaining bracket 20 with respect to a pivot axis 24 running parallel to the hinge axes, with respect to which successive door members are hingedly connected to each other. The clamping bracket 20 may be U-shaped, the external flanks surrounding a pivoting flank 52 of the retaining element 50 and a connecting flank resting on the internal delimiting surface 12 of the door member 10 and being able to be clamped there. In this regard, the position of the clamping bracket 20 can be adjusted in the vertical direction, as indicated by the double arrow 22. To this end, the connecting flank of the clamping bracket 20 can be traversed by oblong holes extending in the closed position in the direction of gravity, which are crossed by fastening screws, which on the other hand penetrate into the door leaf member 10.

Additionally, the position of the pivot axis 24 can be adjusted in a direction running perpendicular to the internal boundary surface 12 of the door member 10, as indicated by the double arrow 23.

The pivoting flank 52 of the retaining element 50 passes into a guiding flank 54 that forms an obtuse angle with it, the axis of rotation 61 of the rolling roller 60 being arranged in the transition zone between the pivoting flank and the guiding flank of the retaining element 50 and extending approximately parallel to the pivot axis 24. Likewise, the rolling roller axis 63, with respect to which the rolling roller 62 is rotatably retained on the guiding flank 54 of the retaining element, extends parallel to the pivot axis 24.

As shown in Figure 1, a guide plane 55 containing the axes of rotation 63 and 61 of the rolling rollers 62 and 60 forms with a pivot plane 53 containing the axis of rotation of the guide roller 60 adjacent to the pivoting axis 24 and the pivoting axis 24 an obtuse angle a, which corresponds to the obtuse angle between the pivoting flank 52 and the guiding flank 54. In the closed position shown in Figure 1, the pivoting plane 52 rises starting from the pivot axis 24 in the direction of the cutting line between the pivoting plane and the guiding plane, the guiding plane 55 extending approximately from the cutting line between the pivoting plane 53 and the guiding plane 55 parallel to the end section 210 of the complementary rail 200.

In general, a distance between the front end, facing the door leaf in the closed position, of the end section 210 of the complementary rail 200 and the internal delimitation surface 12 of the member is bridged by the retaining element 50. of uppermost door leaf 10 in the closing position. In this way, a space designated 70 in Figure 1 is kept free, in which a traction cable coupled to the lowermost door leaf member can be guided, without impeding the movement of the door leaf. By means of the position shown in Figure 1 of the pivot axis 24 and the rotation axes 61 and 63, it is further achieved that in the case of pressure on the edge of the upper door leaf member from outside, a locking action is created. tightening by the guide rollers 60 and 62 housed in the end section 210 of the complementary rail 200, as the guide roller 60 is pushed against a lower boundary surface of the end section 210, while the guide roller 62 is pushed against an upper boundary surface of the end section 210 of the complementary rail 200.

This clamping action is favored because the guiding plane 55 forms an obtuse angle with the pivoting plane 53, so that the retaining element 50 in case of pressure on the edge of the upper door leaf member is pivoted with respect to to the rotation axis 61 of the guide roller 60, whereby the tightening action described above can be achieved. The obtuse angle between the guiding plane and the pivoting plane is preferably approximately 120° to 165°. Particularly preferably, the angle range is between 130° and 150°.

During the transition from the closing position shown in Figure 1 to the opening position shown in Figure 2, the retaining element 50 is pivoted with respect to the pivot axis 24 in the direction of the internal delimitation surface 12 of the door leaf member 10. When the running rollers 60 and 62 arrive from the downwardly descending end section 210 of the complementary rail 200 to the straight line section 220 running approximately in the horizontal direction of the complementary rail 200, the Guide plane 55 is pivoted so that in the opening position shown in Figure 2 it runs approximately parallel, preferably coplanar with respect to the internal delimitation surface 12 of the door leaf member 10.

During the entire opening movement, the rolling roller 62 goes in front of the upper edge of the door leaf member 10. By varying the distance of the pivot axis 24 with respect to the internal delimitation surface 12 of the leaf member of door 10 it can be achieved that the door leaf member 10 in the opening position as well as in the closing position is arranged approximately in the same plane, as the door leaf members set back during the opening movement, whose Rolling rollers are guided on a guide rail not shown in Figure 2, arranged below the complementary rail section 220 approximately parallel thereto. The door leaf member 10 is oriented in the end section of the opening movement approximately in a horizontal plane, so that it does not "stand up" in the event of contact with a spring cushion arranged at the end. back of the movement path, which can be used to trigger the closing movement. Then there are no bends either.

This kinetics is ensured by the pivotally mounted retaining element 50, which enables, on the one hand, a desired distance between the rolling roller axis 61 and the internal delimitation surface 12 in the closed position, but, on the other hand, side, also an approximation of the rolling roller axes 61 and 63 in the opening position, which prevents the upper door leaf edge from standing up. By the distance between the rolling roller axis 61 and the internal delimiting surface 12 of the door leaf member 10 in the closed position, a construction is possible, in which the complementary rail 200 ends at a distance in front of the internal delimitation surface 12 of the door leaf member 10, to thus provide space for movement of the traction cable. In the sectional representation according to Figure 3, a door leaf member 10 arranged in the closed position can be recognized, on the internal delimiting surface 12 of which a roller retaining element 14, schematically indicated schematically, a roller of rolling 16, which is mounted on the roller retaining element 14 rotatably with respect to an axis of rotation 15. In the closed position shown in Figure 3, the rolling roller 16 is housed in a section 150 that runs approximately in the direction of gravity of a guide rail. In the schematic representation according to FIG. 3, the door leaf member 10 is a door leaf member arranged below the uppermost door leaf member in the closed position. The uppermost door leaf member in the closed position is hidden in this representation. An opening movement of the door leaf is supported in the embodiment shown in FIG. 3 of the present invention with the help of a torsion spring tensioned during a closing movement and surrounding a torsion spring shaft 400. The torsion spring is hidden in Figure 3 for clarity.

The torsion spring shaft 400 is mounted above the arcuate section 100 of the guide rail arrangement so that it can be rotated with respect to a rotation axis 420 horizontal and running parallel to the articulation axes, with respect to which the door leaf members are hingedly connected to each other. In an axial end region of the torsion spring shaft 400, a cable drum 300 oriented coaxially with respect to the torsion spring shaft 400 is rotationally resistant to the torsion spring shaft 400. The drum of cable 300 serves to wind a metal cable 300 attached on the other hand to the lowermost door leaf member in the closed position, with which the recovery force of the torsion spring surrounding the torsion spring shaft 400 is transmitted. in the door leaf closing position to the door leaf.

In the course of an opening movement, a section connecting the lowermost door leaf member with the cable drum 300 of the wire rope moves from the position indicated at 320a in the direction designated by the arrow 325 to the position indicated at 320b, in which the wire rope is completely wound on the cable drum 300. In the course of a closing movement, the wire rope 320 is unwound from the cable drum 300. As indicated by arrow 326, a section that connects the lower edge of the door leaf with the cable drum 300 of the metal cable moves during the closing movement, starting from the position indicated at 320b, towards the position indicated at 320a, which it reaches upon reaching the position closing. In the course of this displacement movement, the wire rope passes through a plane indicated at 350, which runs perpendicular to the articulation axis of the articulated connection between individual door leaf members and which contains the guide rail 150.

A correspondingly high axial position of the cable drum 300 is required in the case of doors with a height of 3.50 m or more and correspondingly long metal cables. A collision-free movement of the metal cable from the opening position indicated at 320b to the closing position indicated at 320a is enabled in the doors according to the present invention, because the complementary rail ends at a distance in front of a plane containing the surface internal delimitation 12 of the door leaf 10 in the closing position. Alternatively, the diameter of the cable drum 300 can also be increased, so that corresponding cable lengths with a shorter axial length can be wound into one layer. However, this would require more installation space above the opening to be closed, which is generally not available. Contrary to what Figure 3 allows us to assume, the section connecting the lowermost door leaf member with the cable drum 300 of the metal cable is usually arranged on the side facing the door leaf of the cable drum and runs thence tangentially to the cable drum approximately in the downward direction of gravity. The position 320b indicating the opening position and the position 320a indicating the closing position are indicated in Figure 3 only for reasons of clarity of the representation on the side remote from the door leaf 10 of the cable drum 300.

4 to 6, the advantageous kinetics of doors according to the present invention with a radius of curvature of the internal guiding surface of the arched section 100 of the running rails in the range of 450 to 550 are explained below with reference to Figures 4 to 6. mm.

In Figure 4, the acceleration values at the upper edge of the uppermost door leaf member during an opening movement are represented as a function of the temporal evolution of the opening movement, as caused by the polygonal effect. , when the radius of curvature of the guiding surface 120 amounts to 361.5 mm and the height of the individual door leaf members in the direction running parallel to the side edges amounts to 750 mm, the speed of opening so that on average it amounts to approximately 300 mm/s. In the case of a radius of curvature of 361.5 mm, for which the accelerations are represented in Figure 4, acceleration jumps of more than 800 mm/s2 are obtained, as can be recognized in Figure 4.

When the radius of curvature is increased to a value of 510 mm, the relations represented in Figure 5 are obtained, in which the acceleration jumps are reduced to less than a quarter of the value according to Figure 4, with which it is possible to clearly reduce the mechanical load of the entire door construction. In the doors according to The present invention can take advantage of this advantage without requiring greater space for the arrangement of guide rails, by providing complementary rails for the rolling rollers placed on the uppermost door leaf member, which advantageously terminate at a distance in front of them. the internal boundary surface of the door leaf in the closed position.

Figure 6 shows a comparison between the accelerations that occur in conventional doors and the accelerations that occur in the doors according to the present invention, which especially clarifies the advantages that can be achieved with the doors according to the present invention. Figure 6 shows the accelerations at an equal average opening speed of approximately 300 mm/s. The advantages achieved according to the present invention can also be used to increase the opening speed. Such an increase leads to an increase in acceleration jumps, also in the doors according to the present invention. However, the opening speed can be more than tripled compared to conventional doors, until the accelerations that occur in conventional doors are reached already at usual speeds.

In a systematic study of the kinetics during door leaf movement it was discovered that an optimal compromise can be achieved between the minimization of the maximum acceleration jumps, on the one hand, and the limitation of the space demand for the arched section, On the other hand, when the ratio of the internal radius (radius of curvature of the internal guiding surface) with respect to the height of the door leaf members is chosen in the range between 0.6 and 0.8, preferably in the range between 0.65 and 0.75, especially preferably in the range between 0.66 and 0.7, a ratio of 0.68 having proven to be especially convenient.

Figures 7 and 8 schematically represent the device for delimiting a door according to the present invention. The delimitation device 1200 has a first delimitation element 1220 and a second delimitation element 1240. The first delimitation element 1220 can be pivoted together with the coupling device 1082 about a pivot axis 1250 with respect to the blade member lower door leaf 1012. The pivot axis 1250 runs parallel to the hinge axes, with respect to which the individual door leaf members are hingedly connected to each other. The delimitation element 1220 has a retaining plate 1220 that runs approximately perpendicular to the pivot axis 1250 and a delimitation slide 1230 that extends on the edge remote from the pivot axis 1250 of the retaining plate 1220 approximately perpendicular to the same in the form of a collar 1230 that partially surrounds the pivot axis 1250. The delimitation element 1240 is made in the form of a stop element placed on the pivot lever 1060. The stop element is made in the explained embodiment by the drawings of the present invention in the form of a stop pin extending approximately parallel to the pivot axis 1250. The stop element 1220 and the rejection element 1240 are arranged in the direction of the pivot axis 1250 to the side, in the representation of the drawings according to Figure 7 behind, of the door leaf member 1012. In the closed position shown in Figure 7, the delimitation pin 1240, with the pivoting of the pivoting lever 1060 towards the internal space closed with the door in the direction indicated by arrow P3, comes into contact with the boundary slider 1230. The boundary slider 1230, with the pivoting of the lower door leaf member 1012 in the lifting direction indicated by arrow P1 , also comes into contact with the boundary piece 1240. In this way, an outward pivoting of the lower door leaf member 1012 in the direction designated by the arrow P1 with respect to the guide roller 16 arranged on the lever is prevented. pivoted 1060. An inward pivoting of the door leaf member 1012 in the direction opposite to the lifting direction P1 can be prevented with the help of a stop not shown in the drawings and stationarily placed on the pivoting lever 1060.

In the transition of the door leaf from the closing position shown in FIG. 7 to the opening position shown in FIG. 8, the coupling device 1082, and thus also the boundary slider 1230, is pivoted under the tensile force of the traction means 1080 carried out at least in the area of a section coupled to the door leaf as a roller chain in the direction indicated by the arrow P2 with respect to the lower edge 1014 of the door leaf member 1012 around the pivoting axis 1250. As results from the comparative observation of Figures 7 and 8, the delimitation element 1240 realized as a delimitation pin, in the course of the pivoting movement of the delimitation slide 1230 around the pivot axis 1250. pivoted 1250, is released from the boundary slide 1230 and can be pivoted in the direction indicated by arrow P3 with respect to the lower door leaf member 1012 about the lever axis 1068. This enables a pivoting movement of the edge of lower door leaf 1014 in the lifting direction indicated by arrow P1 with respect to the door leaf member arranged above in the closed position. As can be seen especially clearly in Figure 7, the radial distance of the delimitation collar 1230 with respect to the pivot axis 1250 increases in a direction opposite to the arrow P2. Thus, a progressive outward pivoting of the pivot lever 1060 with respect to the door leaf member 1012 about the lever axis 1068 is enabled to initiate the pivoting movement of the door leaf member 1012 in the lifting direction. . At the same time, it forms, in the area 1232 of the delimitation collar 1230 with a greater radial distance with respect to the pivot axis 1250, a feeding hopper that facilitates the insertion of the delimitation pin 1240 placed in the pivot lever 1060 in the course of the closing movement of the door leaf. The pivoting movement of the pivot lever 1060 about the lever axis 1068 in the direction P3 opposite to the lifting direction P1 can be limited by a stop. placed on the pivot lever 1060 and not shown. Thereby, the risk of the lower edge 1014 of the lower door leaf member 1012 being pushed under the action of the tensile force provided by the roller chain 1080 against the deflection sprocket that deflects the roller chain is reduced. 1080. Additionally, the delimitation device 1200 has a guiding surface 1260 arranged in the upper area of the building opening that is to be closed with the door leaf, which extends obliquely upwards. Associated with the guiding surface is an additional delimitation element arranged in the area of the lower edge of the door leaf member 1012. In the embodiment shown in the drawings of the present invention, in the case of the additional delimitation element It is a roller 1270 rotatably mounted with respect to the pivot axis 1250, which protrudes beyond the lower edge 1014 of the door leaf member 1012.

As already described above, the upper edge advanced during the opening movement of the door leaf in the course of the opening movement reaches a pushing device associated with the guide rail arrangement 1020, which is arranged for example in form of a compression spring. Under the action of the compression spring, the boundary roller 1270 is pushed against the stationary boundary surface 1250, thereby enabling low-play guidance of the door leaf movement in the region of the lower edge 1014, while at the same time the lower edge 1014 of the door leaf member 1012 can be raised separately in the lifting direction 1081. It is indicated that the pivoting lever 1060 and the delimiting element 1220 in the course of the opening movement of the door leaf They are pivoted in the same direction of rotation with respect to the lifting axis 1068 or the pivot axis 1250, while the lower edge 1014 of the door leaf member 1012 is pivoted in a lever rotation direction opposite thereto with with respect to the door leaf member arranged in the closed position above this lower door leaf member 1012.

The present invention is not limited to the embodiment examples explained by the drawings. Rather, a delimitation device may also be provided with a pivoting slide arranged on the pivoting lever 1060 and a delimitation pin associated with the coupling device 1082. In advantageous embodiments of the present invention, the position of the delimitation pin The delimitation slide 1240 and the delimitation slide 1230 are adapted to each other so that a contact-free movement of these components takes place without the action of external forces. The lever axis 1068 is arranged in the embodiment shown in the drawings of the present invention above the pivot axis 1250. In the embodiment shown in the drawings of the present invention, the guide roller 1016 is arranged between the lever axis 1068 and the pivot axis 1250. In all embodiments of the present invention, the coupling device 1082 can be used at the same time as a capture device, which prevents a fall of the door leaf when tears the traction means or breaks the weight compensation device attached to the traction means.

Claims (47)

1. Door with a door leaf that can be moved along a predetermined path by an arrangement of guide rails between a closing position, in which it is arranged approximately in a vertical plane, and an opening position, in which is arranged approximately inverted in a horizontal plane, which has a plurality of door leaf members arranged one after another in the direction of movement of the door leaf and connected to each other in an articulated manner with respect to hinge axes that run perpendicular to the predetermined path, in which The guide rail arrangement has two guide rails arranged in the region of the side edges that run parallel to the predetermined path of the door leaf, each of which has a first section running substantially in a straight line approximately along parallel to a lateral edge of the door leaf in the closed position, approximately in the direction of gravity, a second section running substantially in a straight line, approximately parallel to a lateral edge of the door leaf in the closed position opening, and an arcuate section connecting the sections running in a straight line to each other, the radius of curvature of which on an internal guiding surface thereof amounts to 400 mm or more, preferably 420 mm or more, especially preferably to 450 mm or more, in particular 500 mm or more, the arrangement of guide rails presenting complementary rails that interact with advanced guiding means placed in the region of the edge, advanced during an opening movement, of the advanced door leaf member during the opening movement, which have a third section that runs in a straight line, which runs above the second section and which runs in a straight line approximately parallel to it, characterized in that a lower edge in the closed and retracted position during lifting of the door leaf can be raised separately, at least, upon reaching the open position, by a pivoting movement of a lower door leaf member presenting this edge in a lifting direction with respect to a door leaf member arranged above in the closing position with respect to the predetermined path, preferably a delimiting device being provided that delimits the pivoting movement of the leaf member of the lower door in the lifting direction, at least along a section of the predetermined path. 2. Door, according to claim 1, characterized in that the third section that runs in a straight line passes at its front end facing in the closing position of the door leaf to an internal delimitation surface of the door leaf facing the closed space. with the same to a downwardly descending end section, which ends at a distance with respect to a plane containing the internal delimiting surface of the door leaf in the closed position. 3. Door, according to claim 1 or 2, characterized in that the advanced guiding means have a guiding element housed in the complementary rail, such as, for example, a guiding roller mounted rotatably with respect to an axis of rotation that runs approximately parallel to the hinge axes, which is positioned on the advanced door member through a retaining element positioned on the advanced door member during the opening movement in a pivotable manner with respect to a pivot axis which runs parallel to the articulation axes. 4. Door, according to claim 3, characterized in that the axis of rotation in a first pivoting position, adopted in the closing position, of the retention element towards the internal space has a distance with respect to the internal delimitation surface of the advanced door member, which in the event of an opening movement of the door leaf is reduced by pivoting the retaining element. 5. Door according to claim 3 or 4, characterized in that the retaining element is fastened to the advanced door member through a fastening means that can be fixed with respect to the internal delimitation surface of the advanced door member, the retaining element being retained in the fastening means in a pivotable manner with respect to the pivoting axis that preferably runs in a direction that runs perpendicular to the internal delimitation surface displaced with respect to a delimitation surface and/or the position of the fastening means with respect to the advanced door member in a plane containing the delimitation surface, in particular in the direction of the side door leaf edge. 6. Door, according to one of claims 3 to 5, characterized in that the advanced guiding means have two guiding rollers mounted on the retaining element rotatably with respect to axes of rotation that run parallel to the articulation axes. . 7. Door, according to claim 6, characterized in that a guiding plane that contains the axes of rotation forms an obtuse angle with a pivot plane that contains the pivot axis and the axis of rotation closest to the pivot axis, ascending the pivoting plane in the closed position starting from the pivoting axis in the direction of the cutting line of the guiding plane and the pivoting plane with a slope greater than the guiding plane that rises in the closed position approximately parallel to a tangent to the end section of the complementary rail. 8. Door according to claim 7, characterized in that the guiding plane in the opening position, on the side of the pivot axis facing the internal delimitation surface of the door member advanced during an opening movement, runs approximately along parallel to the internal delimitation surface, preferably approximately coplanar with respect to it. 9. Door, according to any of the preceding claims, characterized by a weight compensation device that supports the opening movement with a traction means coupled to the lowest door member in the closing position, which in the course of a movement opening can be wound on a winding device arranged above the arcuate section or behind an end remote from the arcuate section of the second section running in a straight line. 10. Door, according to claim 9, characterized in that the traction means has a traction cable and the winding device has a winding drum with respect to a drum axis that runs parallel to the articulation axes, with a Guide groove that spirally surrounds the drum shaft in the drum sleeve for the traction cable that must be wound therein during the opening movement. 11. Door, according to claim 10, characterized in that a section connecting the lowermost door member with the cable drum of the traction cable moves during the closing movement at its end facing the cable drum starting from an area facing the lateral edge of the door leaf of the cable drum in the direction of an area remote from the lateral edge of the door leaf of the cable drum and in this respect reaches and possibly passes through a plane passing through the rail complementary and runs perpendicular to the articulation axes. 12. Door, according to claim 11, characterized in that the plane that crosses the complementary rail crosses the area away from the lateral edge of the door leaf of the cable drum. 13. Door according to claim 11 or 12, characterized in that the cable drum is coupled to a torsion spring arrangement disposed above the arcuate section or behind an end remote from the arcuate section of the second section running in a straight line and which must be tensioned during a closing movement, the drum axis preferably running approximately parallel, in particular approximately collinear with respect to the torsion spring axis. 14. Door according to any of the preceding claims, characterized in that the internal radius of the arched section, in particular in the form of a circular arc, amounts to less than 800 mm, preferably less than 700 mm, in particular 600 mm or less. 15. Door, according to any of the preceding claims, characterized in that the ratio of the internal radius with respect to the height, at least, of a door member in a direction that runs parallel to its lateral edges amounts to 0.6 or more, preferably 0.65 or more, in particular 0.665 or more, especially preferably about 0.68. 16. Door according to claim 15, characterized in that the ratio of the internal radius to the height of at least one door member is 0.8 or less, preferably 0.75 or less, especially preferably 0.7 or less. 17. Door according to any of the preceding claims, characterized in that the height of at least one door leaf member in the direction of the lateral edge of the door leaf amounts to 550 to 950 mm, in particular 600 mm. to 900 mm, particularly preferably 700 to 800 mm. 18. Door, according to any of the preceding claims, characterized by an electromotor drive device coupled to the door leaf to cause movement of the door leaf. 19. Door, according to claim 18, characterized in that the actuation device is designed so that the closing movement of the door leaf is automatically braked when the advanced edge during the closing movement remains below a height of 2. 50m. 20. Door, according to claim 18 or 19, characterized in that the operating device has a light curtain arrangement, with which a space traversed by the advanced door leaf edge can be monitored during the closing movement and They can detect objects and/or people that arrive in this space. 21. Door according to any of the preceding claims, with a door leaf that can be moved along a predetermined path by an arrangement of guide rails between a closed position, in which it is arranged approximately in a vertical plane. , and an opening position, in which it is arranged by above the head preferably approximately in a horizontal plane, which has a plurality of door leaf members arranged in the direction of movement of the door leaf one behind each other and connected to each other in an articulated manner with respect to axes of joint that run perpendicular to the predetermined trajectory, in which The guide rail arrangement has two guide rails arranged in the area of the side edges that run parallel to the predetermined path of the door leaf, each of which has a first section running substantially in a straight line approximately along parallel to a side edge of the door leaf in the closing position in the direction of gravity, a second section running substantially in a straight line, approximately parallel to a side edge of the door leaf in the opening position, and an arched section that connects the sections that run in a straight line to each other, as well as having complementary rails that interact with advanced guiding means placed in the region of the edge, advanced during an opening movement, of the door leaf member advanced during the opening movement, which have a third section that runs in a straight line that runs above the second section and that runs in a straight line approximately parallel to it, characterized in that the advanced guiding means have a guiding element housed in the complementary rail, such as, for example, a guiding roller mounted rotatably with respect to an axis of rotation that runs approximately parallel to the articulation axes , which is positioned on the advanced door member through a retaining element positioned on the advanced door member during the opening movement in a pivotable manner with respect to a pivot axis running parallel to the hinge axes. 22. Door, according to any of the preceding claims, characterized in that the height of the door leaf amounts to 3.50 m or more, in particular 4.0 m or more. 23. Door, according to one of the previous claims, characterized in that the complementary rail has a housing preferably made as a window-type recess within it to house, at least, a part of the advanced guiding means when reaching the closing position. . 24. Door, according to claim 24, characterized in that the housing is associated with a stop arrangement that counteracts the movement of the guiding means housed in the housing in the opening direction. 25. Door according to any of the preceding claims, the door having a first pretensioning device that pushes the separately liftable edge of the lower door leaf member in the transition from the open position to the closed position towards the default path. 26. Door according to claim 26, in the closing position of the door leaf, a second pretensioning device counteracts a movement of the edge that can be raised separately in a direction orthogonal to the plane of the door leaf. 27. Door, according to one of claims 23 or 24, being arranged on each of the sides facing a guide rail of the door leaf member having the edge that can be raised separately, at least one element of guided on the lower edge of this door leaf element. 28. Door according to any of the preceding claims, the liftable edge of the door leaf member being in the open position in a direction running perpendicular thereto furthest from a guiding element disposed on this door leaf member. door leaf than in the closed position and being raised upwards with respect to the guiding element. 29. Door according to any of the preceding claims, the separately liftable door leaf member being connected via a pivoting lever to a lever arrangement that enables a variation of the distance between at least one element. guide arranged in this door leaf member and the door leaf member with the guide element, the guide element being pivoted upon reaching the opening position by pivoting the pivot lever with respect to a lever axis in a direction opposite to the direction of elevation with respect to the lower door leaf member. 30. Door, according to any of the preceding claims, the traction means that raises the door leaf from the closed position to the opening position being connected at one end to the lower edge of the door leaf and being coupled at its end. another end with a weight compensation device, and the first prestressing device counteracting the traction means. 31. Door, according to claim 30, characterized in that the traction means is coupled to the lower edge of the door leaf through a coupling device placed on the lower edge in a pivotable manner with respect to a pivot axis that runs parallel to the articulation axes, the axis of pivoted in the closed position below the lever axis. 32. Door, according to claim 31, characterized in that the coupling device under the traction action of the traction means upon reaching the opening position is pivoted in a direction (P2) opposite to the lifting direction (P1) with with respect to the lower door leaf element. 33. Door, according to one of claims 30 to 32, characterized in that the delimitation device has a delimitation element associated with the coupling device and that it can be pivoted with respect to the pivoting axis and a delimitation element associated with the lever arrangement and which can be pivoted with respect to the lever axis. 34. Door, according to claim 33, characterized in that one of the delimitation elements has a delimitation slide that at least partially surrounds the lever axis and/or the pivot axis. 35. Door, according to claim 34, characterized in that one of the delimitation elements has a stop element that during the pivoting movement of the lower door leaf element in the lifting direction (P1) comes into contact with the slider. of delimitation. 36. Door, according to one of claims 34 or 35, characterized in that the delimitation slide has a collar that extends from a retaining element that extends approximately perpendicular to the articulation axes of the coupling device transversely, in particular approximately perpendicular thereto, and/or the stop element is placed on the pivoting lever and during the pivoting movement of the lower door leaf element in the lifting direction (P1) it comes into contact with the delimitation surface facing the pivot axis of the delimitation slide. 37. Door, according to claim 36, characterized in that the stop element upon reaching the opening position is released from the delimitation slide. 38. Door, according to any of the preceding claims, characterized in that the delimitation device has a stationary guiding surface that when reaching the opening position interacts with a delimitation element placed on the lower edge of the lower door leaf element. 39. Door according to claim 38, characterized in that the stationary guiding surface is placed on the wall having the edge opening and extends obliquely upwards. 40. Door according to claim 38 or 39, characterized by a pushing device placed at the remote end of the arched guide rail segment of the overhead guide rail segment, which in the opening movement is It can rest on the edge, advanced during an opening movement, of the door leaf, with which the delimitation element placed on the lower edge of the door leaf is pushed in the opening position against the guiding surface. 41. Door, according to any of the preceding claims, characterized in that the first and/or the second pretensioning device has a spring element. 42. Door, according to one of claims 25 to 41, characterized in that the first and/or the second pretensioning device has a torsion spring. 43. Door according to any of the preceding claims, characterized by a drive device coupled to the door leaf with an electric motor, a gear arrangement coupled to the electric motor and a motor control, as well as a weight compensation device. that supports the opening movement of the door leaf. 44. Door, in particular according to claim 43, characterized in that the gear arrangement has a self-locking and reduction helical gear coupled to the electric motor and a multiplication gear coupled to the output shaft of the helical gear, such as, for example, chain gear, with a multiplication ratio of preferably 1:1.5 or more, in particular 1:2 or more, especially preferably 1:3.5. 45. Door, according to any of the preceding claims, characterized in that the electric motor and the gear arrangement are designed to generate an opening and/or closing speed of 0.6 m/s or more, in particular 1 m/s. s. 46. Door, according to any of the preceding claims, characterized in that the electric motor has a frequency-driven motor. 47. Door, according to one of claims 43 to 46, characterized in that the motor control can be done function to start and/or brake the door leaf from a rest position or from a door leaf movement with a predetermined acceleration profile.