EP0074318A1 - Actuating device for an overhead door, and a door equipped with such a device - Google Patents

Abstract

The overhead door comprises a panel (3) which is movable in an aperture (1). When it passes from the closed position to the open position, the upper edge (6) of the panel (3) moves away over a substantially horizontal path from the upper edge (4) of the aperture (1), whilst the rest of the panel (3) tilts so as to be stored substantially horizontally under the upper edge (4) of the aperture (3). A drive carriage (14) is movable in translational motion transversely relative to the plane of the aperture (1) on the top of the latter and on the side towards which the upper edge (6) of the panel (3) moves during opening. A second carriage (33) is mounted on the same slideway (16) as the drive carriage (14). A telescopic arm (24) is mounted in an articulated manner on the drive carriage (14) and in the middle of the panel (3). At a distance from the joint (31) between the arm (24) and the panel (3) there is a coupling (34) between the second carriage (33) and the part of the telescopic arm (24) associated with the panel (3). The invention is used for controlling an overhead door even when it lacks rigidity. <IMAGE>

Description

The present invention relates to a device for controlling a tilting door comprising a movable panel in an opening, this panel, when it passes from the closed position to the open position, having its upper edge which moves away in a substantially horizontal trajectory from the edge upper opening, while the rest of the panel tilts to store substantially horizontally under said edge. This device comprises a motor carriage movable in translation transversely to the plane of the opening and at the top of the latter, and an extendable arm articulated to the motor carriage and to the panel.

The present invention also relates to a tilting door equipped with the aforementioned device.

We know from FR-A-2,375,419 a device of this kind in which the extendable arm consists of a succession of pairs of scissors. The pair of scissors adjacent to the panel has an arm articulated at the upper edge of the panel and an arm, the free end of which, slidingly mounted in a curved slide, takes a position along the latter which depends on the angle between the panel and arm, angle which in turn depends on the position of the panel in the opening. The curved profile of the slide is studied to keep the scissors apart, therefore to keep the arm contracted in a first phase of the opening, then to allow the progressive extension of the arm in a second phase of the opening, during which the movement of the carriage is therefore multiplied.

Despite the multiplication thus obtained at the end of opening with regard to the force exerted on the panel, the fact remains that this effort is then almost ineffective, since it is exerted on the upper edge of the panel which does not has more than a very small displacement to accomplish, and also because it is exercised horizontally while at the end of opening the movement of the panel is mainly directed vertically. This results in excessive and ineffective loading of the parts of the device, the need for an excessively powerful motor unless one is satisfied with a slow opening maneuver. It will also be noted, as shown in the figures of the previous document, that the purely horizontal force exerted by the known device cannot ensure that the panel is absolutely horizontal in the fully open position.

The object of the invention is to improve the device of the kind stated in the introduction to achieve a more rational use of the force provided by the motor carriage during opening, and to allow the manufacturer to ensure that in open position the panel is strictly horizontal.

According to the invention, the device is characterized in that the extendable arm is articulated to the panel at a distance from its upper edge, and in that the device comprises means for ensuring a tilting support for the telescopic arm, at least from '' a certain stage during the stroke of the motor carriage in the direction of opening of the panel.

At a certain stage in the movement of the carriage in the direction of opening, the panel already makes a certain angle with respect to the vertical and the movement which remains to be accomplished corresponds substantially to a pivoting around an axis close to its edge. superior. The extendable arm then took its tilting support. Therefore, the extension of the arm, caused by the traction of the carriage can only take place by tilting the arm on its fulcrum. Thus, the end of the arm raises the panel to the location where they are hinged together. The movement of the carriage is thus transformed into a tilting torque much more favorable than a simple traction. In addition, this couple becomes more and more important as the extension takes place. arm, until fully open. It is easy to harmonize the different dimensions of the device so that in the fully open position the panel is horizontal.

It is not always necessary to provide means for initiating the opening of the panel because it often results from compensating springs. If this is not the case, it is possible to provide for the motor carriage to be on the side of the opening towards which the upper edge of the panel moves at the opening, and to provide the device with a clip limiting the difference angle between the panel and the extendable arm.

It is also possible to provide that the extendable arm is of the telescopic type, and that the means providing the latter with its tilting support comprise a second carriage movable in translation in a direction substantially parallel to that of the motor carriage, and, at a distance from the articulation between the arm and the panel, a coupling between the second carriage and the part of the telescopic arm associated with the panel.

In a first phase of the opening, the telescopic arm, as it tilts, forces the second carriage to follow the motor carriage. At the same time, the coupling between the telescopic arm and the second carriage restricts the extension of the arm as a function of the distance between the two carriages and the length of the coupling. The arm cannot therefore stretch freely, and on the contrary transmits the tract of the motor carriage to the panel which initiates the opening of the panel. Then, the second carriage and its coupling with the arm have the role of tilting support already explained above.

According to a second aspect of the invention, the overhead door equipped with a device according to the first aspect, is characterized in that its panel is mounted in an articulated and sliding manner in the vertical edges of the opening, this door further comprising at least one link connecting one of the upper corners of the opening to the corresponding lateral edge of the panel, above the axis of articulation of the panel with the edges of the opening, the end of the extendable arm being articulated to the panel between the axis of articulation of the panel at the opening and the axis of articulation of the panel to the link, the motor carriage being on the side of the opening towards which the upper edge of the panel moves to the 'opening.

The door thus defined is particularly advantageous in that the force transmitted by the extendable arm
is applied to the panel in a position which is favorable both for starting from the closed position and at the end of the opening stroke.

Other features and advantages of the invention will emerge from the description below.

• . les figures 1 à 3 sont des vues schématiques en élévation latérale d'une porte équipée d'un premier mode de réalisation de l'invention, respectivement en cours d'ouverture, en position de fermeture totale et en position d'ouverture totale;
• . les figures 4 à 10 sont des vues schématiques en élévation latérale d'une porte équipée d'un second mode de réalisation de l'invention, respectivement en cours d'ouverture, en position de fermeture totale, en position de début d'ouverture, peu avant la fin de l'ouverture, en position d'ouverture totale, peu avant le début de la fermeture et au début de la fermeture, les figures 6, 9 et 10 étant des vues partielles;
• . les figures 11, 13 et 14 sont des vues schématiques en élévation latérale d'un troisième mode de réalisation de l'invention, respectivement en position de fermeture, en cours d'ouverture et en position d'ouverture totale;
• . la figure 12 est une vue en coupe selon le plan XII-XII de la figure 11, l'étrier étant toutefois en position verticale;
• . la figure 15 est une vue en élévation latérale d'une variante de réalisation du chariot moteur des figures 4 à 14;
• . les figures 16 et 17 sont des vues d'une variante de réalisation des dispositifs des figures 4 à 15, en coupe transversale à travers le chariot moteur et le second chariot respectivement;
• . les figures 18 à 20 sont des vues schématiques en élévation latérale d'un quatrième mode de réalisation de l'invention, respectivement en cours d'ouverture, à l'ouverture totale et en cours de fermeture ; et
• . la figure 21 est une vue en coupe selon le plan XXI-XXI de la figure 19.

In the appended drawings, given by way of nonlimiting examples:

• . Figures 1 to 3 are schematic side elevational views of a door equipped with a first embodiment of the invention, respectively during opening, in the fully closed position and in the fully open position;
• . FIGS. 4 to 10 are schematic views in side elevation of a door equipped with a second embodiment of the invention, respectively during opening, in the fully closed position, in the start of opening position, shortly before the end of the opening, in the fully open position, shortly before the start of the closure and at the start of the closure, FIGS. 6, 9 and 10 being partial views;
• . Figures 11, 13 and 14 are schematic side elevational views of a third embodiment of the invention, respectively in the closed position, during opening and in the fully open position;
• . Figure 12 is a sectional view along the plane XII-XII of Figure 11, the stirrup being however in the vertical position;
• . Figure 15 is a side elevational view of an alternative embodiment of the motor carriage of Figures 4 to 14;
• . Figures 16 and 17 are views of an alternative embodiment of the devices of Figures 4 to 15, in cross section through the motor carriage and the second carriage respectively;
• . Figures 18 to 20 are schematic side elevational views of a fourth embodiment of the invention, respectively during opening, at full opening and during closing; and
• . FIG. 21 is a sectional view along the plane XXI-XXI of FIG. 19.

In the example of Figures 1 to 3, the door is arranged in the rectangular entrance opening 1 of a room of the garage type 2. The door comprises a panel rectangular 3 of dimensions adapted to the opening 1 and which is movable in this opening, between a closed vertical position (FIG. 2) and an open horizontal position (FIG. 3) in which it is stored under the upper edge 4 of the opening 1. To pass from the first to the second of these positions, the upper edge 6 of the panel 3 moves away from the upper edge 4 of the opening 1, along a substantially horizontal trajectory directed towards the interior of the garage 2, while the rest of the panel 3 tips and the lower edge 7 of the latter projects outwards from the garage 2, substantially one third of the height of the panel 3.

To ensure panel 3 this kinematics, the door comprises two rods 8 each articulated at the opening 1, near one of the upper corners thereof, and at the corresponding lateral edge of the panel 3, substantially two thirds of the height of the latter (reference 9). In addition, the panel 3 carries on its lateral edges two opposite tenons 11, aligned along a horizontal axis situated substantially at a third of the height of the panel 3. The tenons 11 are engaged in slides 12 each fixed along one lateral edges of the opening 1. Each tenon 11 is associated with a return spring (not shown) which urges it upwards so as to partially compensate for the weight of the panel 3, when the door is opened.

A device 13 associated with the door for mechanically controlling its opening and closing, comprises a motor carriage 14 movable in translation on a slide 16 extending perpendicular to the plane of the opening 1 from the upper edge 4 of this opening towards the interior of the garage 2, towards which the upper edge 6 moves when the panel 3 is opened. The carriage 14 is linked in translation to a nut 17 engaged on a screw 18 parallel to the slide 16 and mounted in axial rotation in a bearing 19 fixed to the internal wall of the wall 21 in which the opening is made 1. At its other end, the screw 18 is coupled to an electric motor 22 carried by a hanger 23 to which is also fixed the end of the slide 16 directed towards the interior of the garage 2.

The device 13 further comprises an extendable arm 24, of the telescopic type, formed by a rod 26 sliding in a tubular body 27. The end of the rod is articulated at the end of a finger 28, integral with the motor carriage 14 and directed from the base of the latter towards the opening 1. The end of the tube 27 opposite the rod 26 is articulated to a support 29 fixed to the region of the panel 3 which moves towards the interior of the garage 2 when the door is opened, and more precisely in the center of the panel 3, between the axis 9 and the axis of the studs 11. The articulation 31 between the tube 27 and the support 29 is located at a distance d from the panel 3, towards inside the garage 2. Furthermore, the articulation 31 allows the tube 27 to slide relative to the support 29 in a direction parallel to the vertical median of the panel 3, over a distance close to the distance d, by means of a slide 32 formed in the support 29. The slide 16, the screw 18 which is located above, and the arm 24, are all three sen situated in the median vertical plane of the opening 1. The rod 26 and the body of the telescopic arm 24 both have a length close to the half-height of the panel 3.

The device 13 further comprises a second carriage 33 mounted in free sliding on the slide 16, between the motor carriage 14 and the mr 2L A coupling rod 34 with fixed length, at one of its ends articulated to the carriage 33 and its other end articulated at the end of the body 27 directed towards the motor carriage 14.

A fastener 36 articulated by one of its ends in the middle of the upper edge 6 of the panel 3, carries at its other end a slide - or knob - 37, articulated at the end of the tube 27 directed towards the motor carriage 14.

• Lorsque le panneau 3 est fermé, le bras 24 est rétracté en position sensiblement verticale et parallèle au panneau 3. Son articulation 31 est en position basse dans la glissière 32 du support 29. Les chariots 14 et 33 sont en fin de course, du côté de l'ouverture 1. Le doigt 28 du chariot moteur 14 est engagé sous le second chariot 33. L'extrémité du tube 27 dirigée vers le chariot 14 est en butée à l'extrémité de la coulisse 37, dirigée vers le panneau 3.

The device which has just been described operates as follows:

• When the panel 3 is closed, the arm 24 is retracted into a substantially vertical position and parallel to the panel 3. Its articulation 31 is in the low position in the slide 32 of the support 29. The carriages 14 and 33 are at the end of their travel, on the side of the opening 1. The finger 28 of the motor carriage 14 is engaged under the second carriage 33. The end of the tube 27 directed towards the carriage 14 is in abutment at the end of the slide 37, directed towards the panel 3.

To open the door, the motor 22 is powered so as to cause the movement of the carriage 14 towards the interior of the garage 2. This movement causes the telescopic arm 24 to tilt towards the interior of the garage 2. First, the tube 27 abuts at the other end of the slide 37, without this further causing movement of the panel 3. This preliminary stroke of the carriage 14 and of the arm 24 can be used to control the unlocking of the panel 3 An example on this subject will be explained later.

The movement of the carriage 14 continues, the telescopic arm 24 pulls the upper edge 6 of the panel 3, by means of the fastener 36. At the same time, the arm 24 tilts and its articulation 31 with the panel, 3 , slides to the upper end of the slide 32 of the support 29 (Figure 1). However, thanks to the presence of the coupling rod 34, the arm 24 cannot stretch freely. Indeed, the length of rod 26 which protrudes from the body 27 constitutes the hypotenuse of the triangle defined with the connecting rod 34 and the (fictitious) extension of the finger 28 to the connecting rod 34. The traction produced by the carriage 14 is therefore effectively transmitted to the panel 3 by the arm 24, and the second carriage 33 can only follow the motor carriage 14, however gradually falling behind thereon, as the inclination of the arm 24 increases. In this phase of the movement, the compensating springs associated with the pins 11 of the panel 3, effectively assist the opening movement of the panel. When the panel 3 has only a slight inclination relative to the horizontal, the traction exerted by the motor carriage 14 is no longer effective in finishing raising the panel 3, since this traction is almost aligned with the points 9 and 11 seen laterally as in the figures. The movement that remains to be accomplished for the panel 3 corresponds substantially to a rotation about a horizontal axis close to the upper edge 6 of the panel 3. The subsequent movement of the carriage 14 then results in the extension of the arm 24, while the second carriage 33 indirectly linked to the upper edge 6 of the panel 3, remains substantially stationary. As at this stage, the inclination of the arm 24 is already greatly reduced, the extension of the latter causes only a slight variation of this inclination over a stroke of the carriage 14 which corresponds to approximately half of its total stroke . The force exerted by the carriage 14 is therefore greatly increased. The variation in inclination of the arm 24 results in a tilting of the latter around its point of articulation 38 with the coupling lever 34, so that the force produced by the carriage 14 is converted into upward force applied to the panel 3 by the arm 24 and the joint 31.

This upward effort brings the panel 3 into its horizontal position of total opening, in which the link 8 is stored along the lateral edge of the panel 3. The arm 24 retains with respect to the horizontal a slight inclination allowed by the distance d existing between the articulation 31 and the panel 3. The tubular body 27 of the arm 24 is again close to its abutment position in the slide 38, on the side of the panel 3.

To return the panel 3 to the closed position, the screw 18 is turned in the opposite direction using the motor 22. By the opposite effect to that described above, the first phase of the movement of the carriage 14 causes the arm to contract 24 and consequently, the initial tilting initiating the descent of the panel 3. Everything takes place substantially opposite to what has been described above, until the carriage 14, at the end of its travel on the side of the wall 21, pushes the panel 3 into its locked position by means of the fastener 36. Despite the symmetry of operation between the ascent and descent of the panel 3, it will however be possible to note certain differences due to the reversal of the forces and inertias. In particular, during the descent, it is possible for the arm 24 to move towards the lower end of the slide 32 or towards the end of the slide 37 directed towards the panel 3.

In the event of a failure of the device, for example in the event of an electrical failure in the motor 22, the presence of the device 13 does not prevent manual operation of the door. To do this, it suffices to decouple the rod 26 and the motor carriage 14.

The device which has just been described is particularly advantageous since it makes it possible to control the operation of the door with a small motor, provided therewith. sant a gear which increases, when the necessary efforts are the most important, that is to say at the end of opening. In addition, the risks of warping of the panel 3 in case it lacks rigidity, are eliminated. Finally, the device does not clutter the lateral opening edges.

However, it can be seen that the device which has just been described limits the useful height of the opening, when the panel 3 is open, because of the distance d required between the articulation 31 and the panel 3 (see FIG. 3).

The embodiment shown in FIGS. 4 to 10, which will only be described with regard to its differences from that of FIGS. 1 to 3, remedied these drawbacks.

First of all, it will be noted that the door to which the device 113 is applied to control its maneuver is similar to that of FIGS. 1 to 3, but further comprises a locking device comprising a beveled bolt 41 adapted to engage in a keeper 42 made in the thickness of the wall 21, from the upper edge 4 of the opening 1. The bolt 41 can retract vertically downwards, out of the keeper 42, against the effect of '' a helical spring 4 ₃ . For this, the bolt 41 is connected by a pulling cable 44, mounted vertically along the panel 3 on the side of the interior of the garage 2, to the lever 46 of a handle 47, rotatably mounted in the panel 3 and giving outside the garage 2. A distance from the lever 46 and the bolt 41, a flexible clip 48 connects the cable 44 to the tube 27 at a distance from its articulation 31, with the panel 3.

This articulation 31 is now fixed and no longer sliding as in the case of FIGS. 1 to 3.

In addition, it is much closer to the panel 3. Furthermore, the attachment 36 between the tube 27 and the panel 3 has been eliminated, while the connecting rod 34 has been replaced by a stirrup 49 having the role of limiting the distance separating the carriage 33 and the zone 51 of the tube 17 associated with said stirrup 49. Two pairs of tenons 52 carried by the tube 27, on either side of each upright of the stirrup 49, prevent the arm 24 from sliding axially by compared to stirrup 49.

According to an important feature of the embodiment of Figures 4 to 10, the finger 28 of the carriage 14 is replaced by a slide 53 which, from the carriage 14 is directed obliquely, for example at 43 °, downwards and towards the opening 1. At its free end, the rod 26 carries a roller. 54 mounted to slide in the slide 53.

• En position fermée du panneau (figure 5), l'étrier 49 et la glissière 53 sont en position croisée, tandis que le bras 24 est légèrement incliné par rapport à la verticale, vers l'intérieur du garage 2 à partir de son articulation 31. Les deux chariots 14, 33 sont en fin de course du côté du mur 21. Le galet 54 de la tige 26 est en butée à l'extrémité de la glissière 53, dirigée vers le chariot 14.

The operation of this embodiment of the invention is as follows:

• In the closed position of the panel (FIG. 5), the stirrup 49 and the slide 53 are in the crossed position, while the arm 24 is slightly inclined relative to the vertical, towards the interior of the garage 2 from its articulation 31 The two carriages 14, 33 are at the end of their travel on the side of the wall 21. The roller 54 of the rod 26 is in abutment at the end of the slide 53, directed towards the carriage 14.

When the carriage 14 is started (FIG. 6), the arm 24 tilts towards the interior of the garage 2, but initially, the panel 3 remains closed because the bolt 41 is still engaged in the keeper 42. By tilting, the arm 24 pulls on the cable 44 by means of the fastener 48 and thus retracts the bolt 41 which emerges from the keeper 42.

The panel then begins to tilt under the effect of the horizontal component that exerts on the ar ticulation 31 the traction force of the carriage 14, and also under the effect of traction by the fastener 48 and the cable 44.

During opening (Figure 4), the movement is similar to that described with reference to Figure 1. The roller 54 remains. in the high position in the slide 53. When the panel 3 is close to the horizontal, the arm 24 stretches as described with reference to FIG. 3, the roller 54 remaining in the high position in the slide 53, and the tube 27 being in abutment against the lower middle part of the stirrup 49 (FIG. 7). Given the small distance between the articulation 31 and the panel 3, the total extension of the arm 24 is not sufficient for the panel 3 to reach its horizontal position of total opening. Furthermore, the carriage 14 has still not reached its end of travel, and continues its movement towards the interior of the garage 2. This causes the roller 54 to descend to its stop position, at the lower end of the slide 53 (Figure 8). This descent of the roller 54 causes the arm 24 to tilt around the central central part of the stirrup 49, and consequently, the raising of the articulation 31 until the panel 3 has its horizontal end position. At this stage, the arm 24 is itself substantially horizontal.

In a first stage of the return movement of the carriage 14, the panel 3 remains stationary while the arm 24 fully retracts, the. roller 54 remaining in the low position in the slide 53 (Figure 9).

A slight additional advance of the carriage 14 brings the roller 54 up to its upper stop, in the slide 53. This makes the arm 24 pivot upwards which goes up in the stirrup 49 (FIG. 10) and bears against the edge upper 6 of panel 3.

It then undergoes a slight tilting which begins its descent.

The latter is then carried out in a manner substantially opposite to the climb. At the end of closure, the free end of the slide 53 directly pushes the upper edge 6 of the panel 3, forcing the engagement of the bolt 41 in the keeper 42.

This embodiment of the invention, which requires only a space-saving support 29, gives the opening 1 a particularly useful useful height. In addition, provided that the screw 18 is reversible, the door of Figures 4 to 10 can be actuated manually, without any disassembly. If the first manual operation takes place from the open position of the panel 3 (Figure 8), you must first manually bring the carriage 14 to the second carriage 33 before you can close the panel 3. If you want to operate the door manually, without the motor 22 and the nut 17 opposing their resistant force, it suffices to uncouple the carriage 14 from the nut 17.

- The embodiment of Figures 11 to 14 is similar to that of Figures 4 to 10 and the same reference numbers will be used for similar elements.

In this device 213, the second carriage is omitted, as of course is its coupling with the telescopic arm 24. Only the fastener 48 provides a certain drive for the panel 3 by the telescopic arm 24 at the start of the opening. However, it does not necessarily have a significant mechanical resistance in the case where the weight of the panel 3 is compensated by springs (not shown).

In addition, a U-shaped bracket 61 is suspended from the ceiling of the garage 2, in the vicinity of the upper edge of the panel "3 when the latter is in the open position.

The U-shaped bracket 61 is articulated on the ceiling of the garage 2 by the end of its two arms 62, along an axis CC horizontal and parallel to the plane of the opening 1. The two arms 62 are mounted on either side of the slide 16 and of the screw 18, and their spacing is sufficient to allow the passage of the motor carriage 14. The part center of the U-shaped stirrup is a roller 63 mounted in free rotation between the two ends of the arms 62 opposite the axis ^C C. The free distance between the roller 63 and the slide 16 is sufficient for the passage of the carriage 14 with its slide 53 when the arms 62 are vertical. A spring 64 recalls the roller 63 in the rest position against the slide 16, by pivoting the arms 62 towards the opening 1 around the axis CC.

When the panel 1 is closed, the roller 63 is at rest against the slide 16 and thus does not form a significant protuberance. During the first phase of the opening stroke of the carriage 14, the fastener 48 drives the panel 1 with the arm 24, preventing the latter from stretching freely without useful effect.

At a certain stage of the opening, the carriage 14, then the part 26 of the arm 24 meet the stirrup 61 and bring it back to the vertical position against the effect of the spring 64 (FIG. 13). The subsequent advance of the motor carriage 14 causes the extension of the arm 24, the part 26 of which rolls on the roller 63, and the tilting of the arm 24 around the fulcrum formed by the roller 63.

As shown in FIG. 13, the arm 24 is in tilting support on the stirrup 61 as soon as its inclination is no more than about 30 ° relative to the horizontal. This amounts to the fact that the stirrup 61 is situated approximately at the mid-point of the travel of the carriage 14. Thus, the robust stirrup 61 takes over the more fragile fastener 48 as soon as the forces to be transmitted begin to become relatively large. When the arm 24 is fully extended, the carriage 14 continues its race so as to bring the roller 54 which until there down to the bottom of the slide 53 was at the top of it (Figure 14).

In the examples of Figures 4 to 14, there is provided a slide 53 inclined at about 45 °. With this inclination, it may happen, in certain door cases, that a power peak is necessary so that the roller 54 can perform the last part of its travel to the lower end of the slide 53. To remedy this this drawback, as shown in FIG. 15, the slide 53 can be bent with its concavity directed towards the opening 1, so that the lower end of the slide 53 has a slight inclination relative to the horizontal. Thus, the last part of the path of the roller 54 corresponds to an even more multiplied movement.

Figures 16 and 17 show an embodiment of the invention suitable in the case where the ceiling height available for the device in the garage 2 is reduced.

The slide 16 is produced from a profile with a staple-shaped profile, the opening of which is directed downwards. In be profiled, the driving screw 18 is mounted longitudinally, in the central position. The nut 17, seen in cross section with the screw 18, has a rectangular profile projecting through the opening of the profile 16.

The motor carriage comprises two beams 56 engaged in the opening of the slide 16, and each carrying two rollers 57 intended to roll on the two end wings of the profile 16. Outside the slide 16, the two beams 56 and the nut 17 are made integral by a removable bolt 58. Below, the side members 56 carry two parallel slides 53 in each of which is engaged a roller 54.

As shown in FIG. 13, the second carriage 33 is similar to the carriage 14, except that it is not fixed to the nut 17, and that the two longitudinal members 56 are joined by the stirrup 49. The width of the stirrup 49, seen in the plane of the latter, is such that it can engage between the two slides 53.

This example shows that the device according to the invention can be made particularly space-saving. In addition, this embodiment makes it very easy to uncouple the carriage 14 and the nut 17, simply by removing the bolt 58.

The embodiment of Figures 18 to 21 can work even if, for example due to compensating springs or certain friction, it is necessary to apply to the panel a certain vertical force at the start of its closing stroke.

This example will only be described with regard to its differences from that of FIGS. 11 to 14. It will also be noted that the slide 16 is of the type of FIGS. 16 and 17 and will not be described again either.

In this example, the bracket 61 comprises a U-shaped piece 81, the ends of which are fixed on either side of the slide 16. Against the internal walls of the bottom and of the arms of the piece 81 is fixed an element in the form of gutter 82 which partly extends under the panel 3 when the latter is open. The side walls 83 of the gutter 82 extend further towards the opening 1 than the bottom 84 of the gutter (Figure 21) and each define an abutment surface 86 directed downwards. Near its end opposite its articulation 31 with the panel 3, the part 27 of the arm 24 carries on each side a stud 87 capable of cooperating with the stops 86.

The means providing a tilting support to the arm 24 include a roller 88 mounted in rotation in the walls 83, and located in front of the bottom 84, and under the panel 3 when the latter is open.

The side walls 83 and the bottom 84 of the gutter 82 extend to the vicinity of the slide 53 when the latter is at the end of the opening stroke.

The edge 89 of the walls 83 which is directed opposite the opening 1 is oblique so that its end directed upwards is closer than the other to the plane of the opening 1. The edges 89 thus constitute cams which cooperate with the rollers 54 which for this purpose are extended in the opposite direction from each other at 91 (FIG. 21).

As shown in FIGS. 18 to 20, the slide 53 is concave, and, for example, its concavity is directed opposite to the opening 1. In fact, in the case where compensating springs are effective in end of opening, the reduction provided by the slide is not necessarily important.

• Dans une phase préliminaire de l'ouverture, le bras 24 décolle du panneau 3 et prend appui contre le galet 88. Ceci a lieu assez vite car le galet 88, qui procure l'appui de basculement, est plus près du plan de l'ouverture 1 que dans les appuis de basculement des réalisations précédentes. Ensuite, a lieu le basculement du bras de manière analogue à celle décrite en référence à la figure 13. En fin d'ouverture (figure 19), les galets 54 descendent dans leurs glissières 53, ce qui est possible car ils ont déjà dépassé les cames 89. En même temps, les tenons 87 se rangent sous les butées 86. Au début de la fermeture , les saillies 91 (figure 21) rencontrent les cames 89, ce qui les oblige immédiatement à remonter dans les glissières 53 (figure 20). Come les tenons 87 sont en appui contre les butées 86 qui les empêchent de remonter, c'est l'articulation 31 qui doit descendre, et initier ainsi la fermeture du panneau.

The operation is as follows:

• In a preliminary phase of the opening, the arm 24 takes off from the panel 3 and bears against the roller 88. This takes place fairly quickly because the roller 88, which provides the tilting support, is closer to the plane of the opening 1 as in the tilting supports of the previous embodiments. Then, the tilting of the arm takes place in a manner similar to that described with reference to FIG. 13. At the end of opening (FIG. 19), the rollers 54 descend into their slides 53, which is possible because they have already passed the cams 89. At the same time, the pins 87 are stored under the stops 86. At the start of the closure, the projections 91 (FIG. 21) meet the cams 89, which immediately forces them to go back up into the slides 53 (FIG. 20) . Come the pins 87 are in abutment against the stops 86 which prevent them from going back up, it is the joint 31 which must go down, and thus initiate the closing of the panel.

Of course, the invention is not limited to the examples described and shown, and numerous modifications can be made to these examples, without departing from the scope of the invention.

Thus in a simplified embodiment, the motor carriage 14 could be replaced by a simple nut mounted on the screw such as 18, and articulated to the telescopic arm. The second carriage, although devoid of threads, would be mounted to slide freely on the driving screw.

The invention is applicable to doors whose mechanism ensuring the basic kinematics is different from the links 8 and tenons 11 described. Furthermore, the compensating springs urging the pins 11 upwards are not necessary.

We can very well foresee that there is no link between the top of the tube 27 and the top of the panel 3, nor the fastener 36 in Figures 1 to 3, nor the fastener 48 in Figures 4 to 10. If the screw 18 is irreversible, it can lock the panel in the closed position. In this case, it will be necessary to decouple the carriage 14 and the nut 17, so that the door can be operated manually.

Furthermore, the motor 22 can be replaced for example by a crank.

The slide 16 and the screw 18 can be mounted on the other side of the opening 1, the arm 24 then being articulated to the region of the panel 3 which switches to this side of the opening 1 when the door is opened, that is to say below the tenons 11.

In the case where the slide 16 is on the side shown in the figures with respect to the opening 1, the arm 24 can be articulated to the panel below the studs 11 provided that the fastener 26 (Figures 1 to 3) or 48 (Figures 4 to 10) is provided.

The slide 16 and the screw 18 instead of being perpendicular to the plane of the opening 1, may have a certain obliquity while remaining in a vertical plane perpendicular to the plane of the opening 1.

The means for limiting the extension of the arm could consist of a locking triggering at a certain stage of the opening. In a very simple way, this could be a spring for recalling the arm in the drafted position, œ- spring having a reduced raider for allow extension of the arm in the seoonde phese

Claims (18)

1. Device for controlling a tilting door comprising a movable panel (3) in an opening (1), this panel (3), when it passes from the closed position to the open position, having its upper edge (6) which s moves away along a substantially horizontal trajectory from the upper edge (4) of the opening (1), while the rest of the panel (3) tips to be stored substantially horizontally under said edge (4), this device comprising a motor carriage (14) movable in translation transverse to the plane of the opening (1) and at the top of the latter, and an extendable arm (24) articulated to the motor carriage (14) and to the panel (3), characterized in that the extendable arm is articulated to the panel (3) at a distance from its upper edge, and in that the device comprises means (33, 34, 49, 61) for ensuring a tilting support for the telescopic arm (24), at least from a certain stage during the stroke of the motor carriage (14) in the direction of opening of the panel (3 ). 2. Device according to claim 1, characterized in that the motor carriage (14) carries a slide (53) directed obliquely towards the opening (1) and in which the end (54) of the extendable arm is slidably mounted (24) associated with the motor carriage (14). 3. Device according to claim 2, characterized in that this slide (53) is curved with its concavity directed towards the opening (1) of the door. 4. Device according to one of claims 2 or 3, characterized in that the end (54) of the extendable arm (24) associated with the motor carriage (14) cooperates with a cam (89) arranged so as to raise said end (54) in its slide (53) when the motor carriage (14) completes a first phase of its closing stroke, and in that the extendable arm (24) further comprises, in the vicinity of its middle when it East in the position of maximum extension, at least one lateral projection (87) capable of cooperating with a stop (86) positioned so as to limit the rise of the projection (87) when the motor carriage (14) is in said first phase of its closing stroke. 5. Device according to claim 4, characterized in that it comprises a fixed element (82) having two side walls (83) between which the motor carriage can pass (14) and which carry between them the means (88) providing to the extendable arm (24) its tilting support, and in that each side wall (83) carries on the side directed towards the opening (1) a stop (86) cooperating with a projection (87) of the extendable arm (24) to limit its rise when the motor carriage (14) is in the first phase of its closing stroke, and on the side opposite to the opening, a cam (89) raising the end of the arm (24) in the slide ( 53) in said first phase of closure. 6. Device according to one of claims 1 to 3, characterized in that the means for the tilting support of the extendable arm (24) comprise a stirrup (61) allowing the passage of the motor carriage (14) between its arm (62), and arranged in the vicinity of the upper edge of the panel (3) when the latter is in the open position. 7. Device according to one of claims 1 to 3, characterized in that the extendable arm (24) is of the telescopic type, and in that the means providing the latter with its tilting support comprise a second carriage (33) movable in translation in a direction substantially parallel to that of the motor carriage (14), and, at a distance from the articulation (31) between the arm (24) and the panel (3), a coupling (34, 49) between the second carriage (33) and the part (27) of the telescopic arm (24) associated with the panel (3). 8. Device according to claim 7, characterized in that the motor carriage (14) and the second carriage (33) are mounted on a common slide (16). 9. Device according to one of claims 7 or 8, characterized in that the coupling (34) between the second carriage (33) and the telescopic arm (24) is of fixed length and in that the connection between the panel (3) and the end of the extendable arm (24) associated therewith, comprises a sliding articulation (31, 32). 10. Device according to one of claims 7 or 8, characterized in that the coupling comprises a stirrup (49) which limits the distance between the second carriage (33) and the associated point (51) of the telescopic arm (24) . 11. Device according to one of claims 1 to 10, in which the motor carriage (14) is on the side of the opening (1) towards which the upper edge (6) of the panel (3) moves when the panel (3) opens, characterized by a fastener (36, 48) limiting the angular distance between the panel (3) and the telescopic arm (24). 12. Device according to one of claims 1 to 11, characterized in that before the start of the panel opening stroke, an additional stroke of the motor carriage (14) is reserved for actuating a locking mechanism (41 , 44) of the panel (3). 13. Device according to claim 12, for controlling a door comprising a lock (41) associated with a control cable (44) working in traction along the panel (3), characterized in that the extendable arm (24) is connected to the cable (44). 14. Device according to one of claims 1 to 13, wherein the motor carriage (14) is fixed to a nut (17) mounted on a screw (18) coupled to motor means such as an electric motor (12 ) or a crank, characterized in that the screw-nut connection (17, 18) is reversible. 15. Device according to claim 14, characterized in that the fixing (58) of the motor carriage (14) to the nut (17) is removable. 16. Overhead door fitted with a device according to one of claims 1 to 15, characterized in that its panel (3) is mounted in an articulated and sliding manner in the vertical edges of the opening (1), this door further comprising at least one link (8) connecting one of the upper corners of the opening (1) to the corresponding lateral edge of the panel (3) above the articulation axis (11) of the panel (3 ) with the edges of the opening (1), the end (31) of the extendable arm (24) being articulated to the panel (3) between the articulation axis (11) of the panel (3) at the opening (1), and the hinge pin (9) of the panel (3) to the link (8), the motor carriage (14) being on the side of the opening (1) towards which the upper edge (6 ) of the panel (3) moves when opened. 17. Door according to claim 16, characterized in that the hinge pin (11) between the panel (3) and the opening (1) is located substantially one third of the height of the panel (3), l 'articulation (9) of the link (8) with the panel (3), substantially two thirds of this height, and the articulation (31) between the panel (3) and the corresponding end of the extendable arm (24) , approximately half of this height. 18. Overhead door according to one of claims 16 or 17, characterized in that the control device (13, 113), is mounted in the middle of the width of the panel (3).

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