EP3478620B1 - Elevator system, especially in the form of a climbing elevator system, with specially formed protective cover - Google Patents

Description

The present invention relates to an elevator installation, in particular in the form of a climbing lift system, with a specially designed protective roof.

Elevator systems are generally used to be able to move people or objects in a usually vertical direction within existing buildings. For this purpose, an elevator car can be relocated within an elevator shaft with the aid of a suspension element such as one or more ropes or belts.

Before the elevator system can be operated in its normal mode of operation, it can possibly already be installed in the building during a construction phase during which a building is not yet completed. It is then possible for the elevator system to be used during the construction phase to transport people and / or material, and for it to grow with the building. In this way, for example, separate external elevators, which would have to be attached to an outside of the building, can be dispensed with during the construction phase.

For this purpose, for example, a part of guide rails and an elevator car can be installed in the elevator shaft provided for the elevator system at a point in time at which one or more lower floors of the building have only been completed. The elevator car and other components of the elevator system, such as a counterweight, can typically be suspended from a lifting platform by means of the support means. A drive machine can be provided on the lifting platform, which can move the support means, for example with the aid of a traction sheave. The lifting platform can be raised to a next higher level, for example with a crane or other means, in order to lengthen the transport path of the elevator system.

For example, in a so-called climbing lift system, the guide rails and / or the holding rails of the elevator system provided for guiding the lifting platform can be successively attached to the elevator shaft during the construction phase of the building and the lifting platform can be attached to the guide rails or holding rails if necessary to be promoted above. The lifting platform can then be fixed at a desired higher position, for example with struts, which, for example, can be pushed out of the lifting platform into openings in the walls of the elevator shaft.

The WO 2015/003964 A1 shows an example of a climbing lift system. The item " Intelligent ventilation, heat extraction, cooling and smoke extraction system (EWAR) for elevator shafts and machine rooms "from Lift-Report, Vol. 35, No. 5, May 1, 2009, pages 155-156 (ISSN: 0341-3721 ) discloses an elevator system according to the preamble of claim 1.

In particular for an elevator system used during the construction phase of a building, there can be a risk of components of the elevator system being damaged by dirt or falling objects. Persons located inside the elevator shaft, such as maintenance personnel, for example, could also be harmed by falling objects.

There may therefore be a need, inter alia, for an elevator system in which components of the elevator system and / or people in the elevator shaft are efficiently protected against falling objects or dirt.

Such a need can be met by the subject matter of the independent claim. Advantageous embodiments are defined in the dependent claims and the description below.

According to one aspect of the invention, an elevator system is proposed which has at least one elevator shaft and typically also at least one elevator car, a lifting platform and a suspension element. The elevator car is held by the suspension element and can be displaced within the elevator shaft by means of the suspension element. The suspension element, for its part, is held on the lifting platform, for example firmly anchored or running over a roller. A protective roof is provided in the elevator shaft, preferably above the lifting platform. Such a protective roof is also sometimes referred to as a crash deck. The protective roof is preferably arranged above components of the lifting platform to be protected or above a working level, for example the shaft pit. The canopy has a central roof construction and a peripheral flank construction. The flank construction has flank walls which are attached to the roof construction, preferably on the side edges of the roof construction, and which are arranged inclined to a horizontal from the central roof structure protruding outwards.

Possible features and advantages of embodiments of the invention can be viewed, inter alia and without restricting the invention, as being based on the ideas and findings described below.

Embodiments of the elevator system proposed herein correspond to conventional elevator systems with regard to many of their components. Among other things, an elevator system according to the invention generally has an elevator cabin in which people or objects can be transported. The elevator car can usually be displaced vertically within the elevator shaft. For this purpose, the elevator car is held by the suspension means such as, for example, ropes or belts, and the suspension means is in turn held on the lifting platform located further above. The lifting platform is thus designed, on the one hand, to hold the weight of the elevator car and possibly a counterweight also attached to the suspension means with the aid of the suspension element held on it. On the other hand, the suspension means should be held on the lifting platform in such a way that they can be displaced and thus the elevator car held on the suspension means can also be displaced. For this purpose, a drive machine, which serves to drive the suspension element, can optionally be arranged on the lifting platform. The drive machine can, for example, drive a drive pulley in rotation and the suspension element can be placed around the drive pulley in order to be able to be displaced by the latter. Alternatively, only deflection rollers can be provided on the lifting platform, around which the suspension element is wound, and a drive machine can be arranged at a different position within the elevator shaft or within a machine room in order to be able to move the suspension element. Other configurations can also be used in which the support means is held fixedly on the lifting platform or can be displaced relative to it.

Embodiments of the elevator system proposed herein differ from conventional elevator systems in particular by the protective roof to be provided in the elevator shaft and its specific design.

The protective roof is provided, inter alia, to protect components of the lifting platform located below the protective roof, in particular from falling objects coming from above and possibly also dirt or water. People located in the elevator shaft below the protective roof may also need to be protected.

This can be particularly advantageous when the elevator system with its lifting platform is designed to be temporarily attached to different positions within the elevator shaft, i.e. when the elevator system is designed as a climbing lift system to be used in a building during a construction phase and to grow with the building during this construction phase by gradually moving the lifting platform. During such a construction phase, the elevator shaft in the building is typically still open to the top. In addition, the lifting platform is typically not arranged at a highest point of the building or at least the elevator shaft, as is usually the case with completed buildings. Therefore, there may be an increased risk that objects such as screws or tools, coming from further up in the building, accidentally fall into the elevator shaft and thus damage components of the elevator system located there, in particular the lifting platform or a drive machine that may be located there. Sensitive components of the lifting platform or the drive machine can also be damaged by dirt or water, for example rain, coming from above.

In order to prevent such damage as far as possible, a protective roof is provided in conventional climbing lift systems above the components to be protected.

However, it was recognized that conventionally used protective roofs are often very difficult to assemble on the lifting platform. In particular, it was mostly difficult to assemble the protective roof in such a way that as little as possible or at most a very narrow gap remains between the protective roof and the walls of the elevator shaft through which falling objects could pass. A previously necessary, complex assembly and adaptation of the protective roof to a geometry of the elevator shaft often led to the fact that when moving the lifting platform within the elevator shaft, a considerable additional expense was initially due to this alone necessary dismantling and then after relocating necessary new mounting of the protective roof could arise.

It was also recognized that with conventional protective roofs, adequate stability and thus resistance to falling objects could only be ensured with great effort. In particular in the edge areas in which the protective roof adjoins the walls of the elevator shaft, the protective roof had to be designed to be particularly stable, which could involve a high expenditure in terms of construction, material and weight.

In order to overcome deficits of conventional protective roofs, it is proposed for embodiments of the elevator system according to the invention to assemble the protective roof from a central roof structure and a peripheral flank structure.

The central roof structure can be arranged above central areas of the lifting platform and cover them. In particular, the central roof structure can be designed and dimensioned in such a way that it does not need to be dismantled, for example, if the lifting platform is to be moved within the elevator shaft. For example, the central roof structure can be dimensioned such that its edges are sufficiently spaced from the side walls of the elevator shaft, i.e. for example by at least 10 cm, preferably by at least 30 cm. The central roof structure can, for example, be a plate made of a sufficiently stable material, for example a metal plate with a thickness of typically at least 3 mm, preferably at least 5 mm, which is sufficient for a protective function. It can also be composed of several plates.

Adjacent to the lateral edges of the central roof structure, there are areas of the peripheral flank structure. The peripheral flank construction is thus predominantly arranged in areas between the central roof construction and the surrounding side walls of the elevator shaft. The peripheral flank construction covers these areas as much as possible. A combination of a central roof construction and a peripheral flank construction thus covers large areas of the cross-section of the elevator shaft. As described in more detail below, any remaining gaps between the flank construction and The walls of the elevator shaft should be as small as possible so that no objects of significant size can pass through them. Components or people located below the protective roof are thus well protected against falling objects.

The flank construction of the protective roof is designed in a special way. It has flank walls that are attached to the side edges of the central roof structure. These flank walls protrude outwards from the roof structure, that is to say towards a respective adjacent wall of the elevator shaft. In this case, however, the flank walls are not aligned horizontally, but rather extend at an angle inclined to the horizontal. In other words, the protective roof does not extend horizontally, in particular at its lateral edges formed by the flank walls, but rather inclined to the horizontal, preferably at an acute angle.

The inclined arrangement of the flank walls can advantageously have the effect that forces acting locally on the edge of the protective roof and caused by falling objects can be reduced. A falling object does not collide with a horizontally extending area of the protective roof and thus locally transmits a considerable impulse there. Instead, the falling object ricochets off the inclined flank wall and is deflected to the side, i.e. as far as possible towards the central roof structure. On the one hand, only a smaller amount of impulse is exerted on the flank wall in the lateral area of the protective roof; on the other hand, the force caused by this on the flank wall acts in an advantageous manner in such a way that the force can be easily diverted to the central roof structure or the side walls.

Overall, by providing a flank construction that is inclined to the horizontal, it can be achieved that a mechanical stability of the protective roof can be improved, especially in these endangered edge areas. In this case, account is taken of the fact that, in particular in these edge areas, the risk of the protective roof being hit by falling objects is particularly high and that, on the other hand, it is difficult to open the protective roof in these edge areas to be constructed sufficiently stable. The protective roof can thus be made sufficiently stable with relatively little construction effort.

According to one embodiment, the flank walls are attached to the roof structure with their lower end regions. In other words, the flank walls are attached at the bottom to the edges of the central roof structure and then protrude obliquely upwards from the central roof structure. The inclined flank walls can thus form a kind of funnel, so that objects falling from above onto the flank walls are deflected towards the central roof structure and can be caught there.

According to one embodiment, the flank walls are arranged at an angle of between 20 ° and 70 °, preferably between 30 ° and 60 °, more preferably between 40 ° and 50 °, to the horizontal. Flank walls aligned at such an acute angle to the horizontal can, on the one hand, easily deflect falling objects without being themselves excessively mechanically stressed. The larger the angle to the horizontal is selected, the smaller the forces exerted on impact on the flank walls. On the other hand, the inclined flank walls must be made wider at such a higher angle to the horizontal in order to be able to bridge an area between a central roof structure and the walls of the elevator shaft. The inclined flank walls should, however, not be excessively wide for reasons of the lowest possible material consumption. The smaller the angle to the horizontal is selected, the narrower flank walls can cover this area.

The flank walls can be flat, for example in the form of flat metal sheets. In this case, its angle to the horizontal is clearly defined. The flank walls can, however, also be curved in themselves, so that one and the same flank wall can encompass different areas inclined at different angles to the horizontal. In this case, “the angle to the horizontal” should be understood to mean an averaged angle to the various areas of a flank wall.

According to one embodiment, the peripheral flank walls are attached to the central roof structure in a reversibly releasable manner. In other words, the flank walls can be assembled and disassembled several times on the roof structure become. The central roof structure and the flank walls to be attached to it are provided as separate components that can be detachably connected to one another.

If the lifting platform is lifted to a different height within the elevator shaft due to the progress of the construction phase, it may be necessary to temporarily dismantle parts of the protective roof at least in certain areas during this shift, since they could otherwise hinder the shifting of the lifting platform. In the case of the elevator system proposed here, it may suffice to merely dismantle the flank construction so that it does not come into conflict with components projecting into the elevator shaft while the lifting platform is being displaced. As soon as the lifting platform has reached its new position and anchored, the protective roof can be completely reassembled, i.e. the flank walls can be attached to the roof structure.

According to one embodiment, it can be advantageous to fasten the flank walls to the central roof structure by means of a fastening structure, the fastening structure being designed to enable the flank walls to be fastened detachably and at positions differently spaced from a respective edge of the roof structure.

In other words, a special fastening construction can be provided for fastening the flank walls to the roof structure, which on the one hand enables the flank walls to be releasably fastened to the central roof structure and which, on the other hand, is designed in such a way that the flank walls are in different positions relative to the edge of the central roof structure can be attached.

With the help of the fastening construction, a flank wall can thus be fastened to the roof construction closer or further away from the respective edge of the roof construction, so that it protrudes laterally over the roof construction to a greater or lesser extent. In this way, the positioning of the flank walls can be adapted, for example, to conditions that change locally within the elevator shaft. The fastening structure should advantageously enable a continuously variable positioning of the respective flank wall.

According to a special embodiment, the fastening structure can have a reversibly detachable and fixable tongue and groove connection which, in an open state, holds the flank wall in only at least one spatial direction, preferably in two spatial directions, and which in a fixed state holds the flank wall in three spatial directions .

In other words, a flank wall can be fastened to the roof structure with a fastening device designed as a tongue and groove connection. The tongue-and-groove connection should be both stably fixable and reversibly releasable. In a fixed state, the tongue and groove connection holds the flank wall in a stable position so that the flank wall cannot be moved significantly in any spatial direction. In the fixed state, the flank wall is thus held in three mutually orthogonal spatial directions. The spatial definition of the flank wall can be brought about by a form fit as well as by a force fit, which is brought about by the tongue and groove connection.

The tongue and groove connection should, however, be reversible, with the flank wall only being held in two spatial directions in an open state, preferably by means of a form fit, and thus being able to be displaced along a direction orthogonal to these two spatial directions. This third spatial direction, which can be freely displaced in the open state, preferably extends orthogonally or at least transversely at an angle to the edge of the central roof structure. Accordingly, the flank wall can be moved orthogonally or obliquely to this edge of the central roof structure when the tongue and groove connection is released.

Such displaceability of the lateral flank walls, which is permitted in the released state of the tongue and groove connection, can be used, among other things, to temporarily shift the flank walls towards the center of the roof structure in order, for example, to be able to raise the roof structure together with the lifting platform within the elevator shaft. The flank walls do not need to be completely dismantled, but it may be sufficient to loosen the tongue and groove connection and only move the flank walls inward, but they are still held in the other two spatial directions. Once at the new position for the lifting platform, the flank walls can then back outwards to the walls of the elevator shaft, and then the tongue-and-groove connection is established.

According to one embodiment, the flank walls are to be attached to the roof structure in a position and orientation in which the edge areas of the flank walls, which are arranged opposite end areas of the flank walls attached to the roof structure, are spaced less than 30mm, preferably less than 10mm, from the side walls of the elevator shaft . Alternatively, the flank walls can be attached to the roof structure in a position and orientation in which edge areas of the flank walls, which are arranged opposite end areas of the flank walls attached to the roof structure, are arranged adjacent to the side walls of the elevator shaft.

In other words, the flank walls themselves and the fastening structures used to attach them to the roof structure can be designed in such a way that each of the side walls can be attached to the roof structure in a position and orientation in which the side wall extends up to close to an adjacent side wall of the Elevator shaft extends. End areas of the flank walls directed towards the central roof structure are attached to the roof structure. Edge areas opposite these end areas extend to just in front of the adjacent wall of the elevator shaft, so that any remaining gap between the flank wall of the protective roof and the side wall of the elevator shaft is very small, in particular smaller than 30mm, and therefore heavy objects can hardly fall through such gaps .

Alternatively, according to one embodiment, the flank walls can be attached to the roof structure in a position and orientation in which the edge areas of the flank walls which are arranged opposite end areas of the flank walls attached to the roof structure rest on the side walls of the elevator shaft.
In this case, the flank walls should be able to be attached to the central roof structure in such a way that their outer edge areas do not remain spaced apart from the respective adjacent side wall of the elevator shaft, but can rest mechanically against it. The flank wall can thus with its outside Support lying edge area on the side wall of the elevator shaft. This can further increase the mechanical strength of the flank wall. For example, when a falling object hits a flank wall, forces occurring can be diverted into the central roof structure on the one hand, but also partially into the side wall of the elevator shaft contacted by the flank wall on the other.

According to one embodiment, the flank structure has corner structures. A corner construction has two corner flank walls that are at an angle to one another and are fastened to one another along one edge and are each arranged at an angle to the horizontal.

In other words, the flank construction can have special corner constructions. Each corner construction has two corner flank walls. These corner flank walls adjoin one another at one edge and are fastened to one another along this edge. A fastening of the two corner flank walls can be reversible or irreversible. In particular, the two corner flank walls can be reversibly screwed to one another along the edge or, preferably, irreversibly welded, riveted or the like to one another. The corner flank walls are designed and connected to one another in such a way that they are arranged at an angle relative to one another and both are arranged inclined to the horizontal. In other words, a corner construction can have the shape of a corner of an upwardly opening, angular funnel.

The corner structures can be provided as separate components which can each be attached to the central roof structure independently of one another and / or independently of other parts of the flank structure.

According to one embodiment, a corner structure can be attached to the roof structure by means of a corner attachment structure. The corner fastening construction can be designed to enable the corner constructions to be fastened in a detachable manner and at positions which are differently spaced from a respective corner of the roof construction.

In other words, it can be provided that a corner structure can be releasably attached to the roof structure at various positions. The positions can be more or less close to a respective corner of the roof structure. A corner structure attached to the roof structure in its lower end regions can then protrude with its corner flank walls inclined to the horizontal over the edges of the roof structure in the vicinity of the respective corner and extend into a corner formed by the side walls of the elevator shaft.

In the assembled state, a corner construction can fill a corner of the elevator shaft as completely as possible. For example, a lateral distance between the corner structure and a respective side wall of the elevator shaft can be less than 30 mm. Alternatively, the corner construction can rest with its self-supporting edge on the respective side walls of the elevator shaft. Gaps between the side walls of the elevator shaft on the one hand and the protective roof on the other hand can thus be prevented or at least minimized.

According to one embodiment, the corner fastening structure can have a reversibly detachable and fixable tongue and groove connection. This tongue-and-groove connection can, in an open state, similar to the tongue-and-groove connection described above, hold the corner structure in at least one spatial direction, preferably in two spatial directions, and in a fixed state hold the corner structure in three spatial directions .

In other words, a tongue and groove connection can in turn be used to releasably fasten a corner structure to the central roof structure in such a way that the corner structure in the open state of the tongue and groove connection along the central roof structure towards or away from a corner same can be moved.

The corner structures can thus, for example, be moved temporarily to the center of the central roof structure in order to be able to move the lifting platform together with the protective roof, for example. After reaching a target position, the canopy can be reassembled in such a way that it has the cross section of the The elevator shaft is essentially completely covered. For this purpose, the corner structures can be pushed outwards towards the corners of the elevator shaft and then the tongue and groove connection can be established.

According to one embodiment, the flank walls can have a wall thickness of at least 3 mm, preferably at least 5 mm. With the help of such a wall thickness, a sufficiently high mechanical strength of the flank walls can be achieved. In particular, it can be achieved that flank walls cannot simply be broken through by falling objects.

According to one embodiment, the flank walls consist of metal or a composite material provided with a metal layer. The flank walls can in principle consist of any sufficiently mechanically stable material such as, for example, plastic, plastic composite materials, wood, wood composite materials or the like. However, it is considered to be advantageous to make the flank walls from metal or at least with a metal layer, since on the one hand sufficient mechanical strength and on the other hand simple production can be achieved with low manufacturing and material costs.

It should be noted that some of the possible features and advantages of the invention are described herein with reference to different embodiments. A person skilled in the art recognizes that the features can be combined, adapted or exchanged in a suitable manner in order to arrive at further embodiments of the invention.

Embodiments of the invention are described below with reference to the accompanying drawings, neither the drawings nor the description being to be construed as restricting the invention.

Fig. 1:

eine Seitenschnittansicht durch eine Aufzuganlage gemäß einer Ausführungsform;

Fig. 2:

eine perspektivische Ansicht von oben auf ein Schutzdach einer herkömmlichen Aufzuganlage;

Fig. 3:

eine perspektivische Ansicht von oben auf ein Schutzdach einer Aufzuganlage gemäß einer Ausführungsform;

Fig. 4(a):

Details und einen Montagevorgang für das in Fig. 3 dargestellte Schutzdach;

Fig. 4(b):

eine vergrößerte Ansicht eines Bereichs aus Fig. 4(a); und

Fig. 4(c):

eine Schnittansicht entlang der Linie A-A aus Fig. 4(b).

The invention is explained in more detail below with reference to figures. Show it:

Fig. 1:

a side sectional view through an elevator installation according to an embodiment;

Fig. 2:

a perspective view from above of a protective roof of a conventional elevator system;

Fig. 3:

a perspective view from above of a protective roof of an elevator installation according to an embodiment;

Fig. 4 (a):

Details and an assembly process for the in Fig. 3 canopy shown;

Fig. 4 (b):

an enlarged view of an area Fig. 4 (a) ; and

Fig. 4 (c):

a sectional view along the line AA Fig. 4 (b) .

The figures are only schematic and not true to scale. In the various figures, the same reference symbols denote the same or equivalent features

Fig. 1 shows an elevator installation 1 in the form of a climbing lift system according to an embodiment of the present invention.

The elevator installation 1 comprises an elevator shaft 3 in which an elevator car 5 and a counterweight 7 are accommodated. The elevator car 5 and the counterweight 7 are held on a lifting platform 11 with the aid of a suspension element 9. The suspension element 9 typically comprises several ropes or belts. The lifting platform 11 is at least temporarily fixed in the elevator shaft 3. Fastening points 13 are attached to the lifting platform 11, at which ends of the support means 9 are firmly held. Furthermore, a drive machine 15 is provided on the lifting platform 11. This drive machine 15 drives a drive pulley 17 to rotate. The suspension element 9 is wound around the traction sheave 17 and can thus be displaced by the rotating traction sheave 17, whereby the elevator car 5 and the counterweight 7 can be moved in opposite directions within the elevator shaft 3.

The elevator system 1 is designed to be used in a building during a construction phase. This means that the elevator installation 1 can already be operated when the building that houses it is only partially completed. After certain construction progresses, the lifting platform 11 can be shifted upwards within the elevator shaft 3 and thus the elevator installation 1 "grows" with the building. To move the lifting platform 11, anchors 19 (only shown very schematically) can be temporarily released, then the lifting platform 11 can be raised, for example by means of a crane, and if necessary the support means 9 can be suitably extended and finally the Lifting platform 11 can be anchored again in its new position in the elevator shaft 3.

In order to protect components of the lifting platform 11 or the assemblies mounted on it, such as the drive machine 15, against objects falling through the elevator shaft 3, a protective roof 21 is provided above such components to be protected, which is intended to act as a crash deck. In the example shown, the protective roof 21 is supported by supports 31 on a support plate 33 of the lifting platform 11 and spans large parts of the cross-sectional area of the elevator shaft 3 above the components to be protected designed in such a way that it has sufficient stability to be able to protect the underlying components to be protected against objects falling from above, such as typically screws, tools, small stones, etc., for example during the installation of the guide rails.

Before referring to details of a protective roof 21 for an elevator installation according to the invention with reference to FIG Fig. 3 If a position is taken, an in Fig. 2 The protective roof 21 'shown, as it is conventionally used in elevator systems, will be briefly explained.

The conventional protective roof 21 'has a planar geometry essentially over its entire surface. Plate-like metal sheets 24 'are also screwed to the edges of a plate-like central roof structure 23'. The central roof structure 23 'and the metal sheets 24' extend essentially in the same plane or in planes lying parallel to one another and are usually each oriented horizontally. The metal sheets 24 'serve to at least partially bridge or close an otherwise existing gap between the central roof structure 23' and walls 4 of the elevator shaft 3.

Since projections, for example in the form of guide rails, retaining clips, etc., can protrude inward at some points in the elevator shaft 3, the metal sheets 24 'must be loosened and removed from the central roof structure 23' before the lifting platform 11 together with the protective roof 21 ', for example another position within the elevator shaft 3 can be shifted.

The release of the metal sheets 24 'as well as the subsequent reattachment of the metal sheets 24' and, in particular, their precise alignment in order to bridge existing gaps, can be labor-intensive and time-consuming.

In addition, it can be difficult to make the metal sheets 24 'sufficiently stable so that they can withstand the considerable forces caused by falling objects. This is particularly true since the metal sheets 24 'are only supported on their side directed towards the central roof structure 23', but are cantilevered on an opposite side. It may be necessary to design the metal sheets 24 'in a complex manner, that is to say to equip them with reinforcing struts 26', for example, in order to be able to make them sufficiently mechanically resistant.

Regarding Fig. 3 Possible details of a protective roof 21 for an elevator installation 1 according to the invention will now be described.

The protective roof 21 has similar to that in Fig. 2 conventional protective roof 21 ′ described on a central roof structure 23. The central roof structure 23 is preferably flat and can essentially consist of one plate or several composite plates, for example metal plates or metal composite plates or also sufficiently thick wooden plates.

Adjacent to the lateral edges 30 of the roof structure 23, a flank structure 25 is provided. The flank construction 25 essentially performs the same tasks as the metal sheets 24 'in FIG Fig. 2 illustrated conventional roof structure 23 '. However, the flank construction 25 is not composed of horizontally arranged metal sheets 24 'as in the conventional protective roof 21', but has flank walls 27, which in their lower end regions 28 (see enlarged in FIG Fig. 4 (b) ) are attached to the lateral edges 30 of the roof structure 23 and which protrude from there inclined to the horizontal 57 obliquely upwards.
As in Fig. 1 illustrated, the flank walls 27 are arranged at an angle α of typically between 40 ° and 50 ° to the horizontal 57. The flank walls 27 extend up to or at least just in front of an adjacent side wall 4 of the elevator shaft 3 and thus close a gap that would otherwise open up between the central roof structure 23 and the side wall 4.

Due to their arrangement inclined to the horizontal 57, the flank walls 27 of the flank construction 25 can protect components to be protected underneath them particularly well against falling objects. As in Fig. 3 illustrated by arrows 41, 43, an object coming from above will first strike one of the obliquely arranged flank walls 27. Since its mostly vertical direction of fall assumes an acute angle with the inclined surface of the flank wall 27, the object will bounce off the flank wall 27 and move towards the center of the roof structure 23. In the case of such an acute-angled ricochet, significantly lower forces are exerted on the flank structure 25 than is the case for horizontally arranged metal sheets 24 ', as they were conventionally used in protective roofs 21'. In addition, an inclined flank wall 27 can optionally also be supported on an adjacent side wall 4 of the elevator shaft 3 in the event of an impact.

Regarding Fig. 4 Finally, it should be explained how the protective roof 21 of the elevator installation 1 according to the invention and in particular its flank construction 25 can be advantageously designed in detail and thus advantageously mounted.

The flank construction 25 and its flank walls 27 can be composed of various components. In the example shown, the flank structure 25 has corner structures 35 and side structures 45.

Each of the corner constructions 35 has two corner flank walls 37 aligned at an angle of, for example, 90 ° to one another. Each of the corner flank walls 37 can be formed by means of a flat sheet metal or a flat plate. At an adjacent edge 39, the two corner flank walls 37 are fastened to one another, for example welded, glued, riveted, screwed or the like to one another. Both corner flank walls 37 are arranged inclined to the horizontal.
A lower end region 28 of the corner flank walls 37 is bent in such a way that it runs essentially horizontally. At this lower end region 28 is each of the Corner flank walls 37 and thus the entire corner structure 35 attached to the central roof structure 23.

For this purpose, a corner fastening structure in the form of a reversibly detachable and fixable tongue-and-groove connection 29 is used for fastening. This is shown schematically in a sectional view in the enlarged detail from FIG Fig. 4 (c) shown. In a simple embodiment, the tongue and groove connection 29 comprises a screw 47 which is screwed into the central roof structure 23, as well as an elongated hole 49 provided in the lower cranked end area 28 of the corner flank wall 37 Corner flank wall 37 in the direction of the elongated hole 49, that is to say in the direction shown by the arrow 51 towards or away from a corner 59 of the central roof structure 23. In the two other spatial directions orthogonal to this, however, the tongue and groove connection 29 prevents movements of the corner flank wall 37. Due to this degree of freedom of movement made possible by the tongue and groove connection 29, the corner structure 35 can thus be directed towards the center of the central roof structure 23 or, in the opposite direction, away from this center outwards to a corner of the elevator shaft 3. As soon as the corner structure 35 has been brought into a desired position, the screw 47 can be tightened and thus the tongue and groove connection 29 can be fixed so that the corner structure 35 is firmly attached to the central roof structure 23 in all three spatial directions.

After the corner structure 35 has been attached in this way to the central roof structure 23 and brought into a desired position in which its upper edges are arranged near the walls 4 of the elevator shaft 3, and has been fixed there, the side structures 45 can be attached to the roof structure 23 and / or be brought into a desired position. The side structures 45 can be formed, for example, with metal sheets or plates, which are cranked in their lower end regions 28, similar to the corner flank walls 37, and are fastened to the edges of the central roof structure 23 with the aid of fastening structures designed as tongue and groove connections 29, for example. When the tongue and groove connection 29 is released, the side structures 45 can be displaced transversely to an adjacent edge 30 of the central roof structure in a direction indicated by the arrow 53 and thus towards adjacent side walls 4 of the Elevator shaft 3 are relocated. In this case, the side structures 45 can preferably be shifted outward so far that their cantilevered edge areas 32, which are arranged opposite the lower end areas 28, abut the side walls 4 of the elevator shaft 3.

For the sake of completeness, it should be noted that in the Fig. 3 and 4th Still further components of the elevator installation 1, such as a speed limiter 61, a cable cover 63 and a cover 65 for a guide shoe, are shown, which, however, are not essential for an understanding of the present invention.

Finally, it should be pointed out that terms such as “having”, “comprising”, etc. do not exclude any other elements or steps and that terms such as “a” or “an” do not exclude a plurality. Furthermore, it should be pointed out that features or steps that have been described with reference to one of the above exemplary embodiments can also be used in combination with other features or steps of other exemplary embodiments described above. Reference signs in the claims are not to be regarded as a restriction.

Claims (15)

1. Elevator system (1) comprising:

   an elevator shaft (3); and

   a protective roof (21) arranged inside the elevator shaft (3),

   wherein the protective roof (21) has a central roof structure (23) and a peripheral flank structure (25),

   wherein the flank structure (25) has flank walls (27) which are fixed to the roof structure (23) and which are arranged to project outward from the central roof structure (23) at an angle with respect to the horizontal (57).
2. Elevator system according to claim 1, wherein lower end regions (28) of the flank walls (27) are fixed to the central roof structure (23).
3. Elevator system according to either of the preceding claims, wherein the flank walls (27) are arranged at an angle (α) of between 20° and 70° to the horizontal.
4. Elevator system according to any of the preceding claims, wherein the flank walls (27) are fixed to the roof structure (23) in a reversibly detachable manner.
5. Elevator system according to any of the preceding claims, wherein the flank walls (27) are each fixed to the roof structure (23) by means of a fixing structure, wherein the fixing structure (29) is designed to allow the flank walls (27) to be fixed detachably and at various positions at a distance from a relevant edge (30) of the roof structure (23).
6. Elevator system according to claim 5, wherein the corner fixing structure comprises a reversibly releasable and attachable tongue and groove joint (29), which holds the flank wall (27) in only at least one spatial direction, preferably in two spatial directions, when released and which holds the flank wall (27) in three spatial directions when attached.
7. Elevator system according to any of the preceding claims, wherein the flank walls (27) are to be fixed to the roof structure (23) in a position and orientation in which edge regions (32) of the flank walls (27), which are arranged opposite end regions (28) of the flank walls (27) that are fixed to the roof structure (23), are at a distance of less than 30 mm from side walls (4) of the elevator shaft (3).
8. Elevator system according to any of the preceding claims, wherein the flank walls (27) are to be fixed to the roof structure (23) in a position and orientation in which edge regions (32) of the flank walls (27), which are arranged opposite end regions (28) of the flank walls (27) that are fixed to the roof structure (23), rest against side walls (4) of the elevator shaft (3).
9. Elevator system according to any of the preceding claims, wherein the flank structure (25) comprises corner structures (35), wherein a corner structure (35) has two corner flank walls (37', 37") which are at an angle to one another, are fixed to one another along a common edge (39) and are each arranged so as to be inclined with respect to the horizontal (57).
10. Elevator system according to claim 9, wherein the corner structures (35) are fixed to the roof structure (23) by means of a corner fixing structure, wherein the corner fixing structure is designed to allow the corner structures (35) to be fixed detachably and at positions at various distances from a relevant corner (59) of the roof construction (23).
11. Elevator system according to claim 10, wherein the corner fixing structure comprises a reversibly releasable and attachable tongue and groove joint (29), which holds the corner structure (35) in only at least one spatial direction, preferably in two spatial directions, when released and which holds the corner structure (35) in three spatial directions when attached.
12. Elevator system according to any of the preceding claims, wherein the flank walls (27) have a wall thickness of at least 3 mm.
13. Elevator system according to any of the preceding claims, wherein the flank walls (27) consist of metal or of a composite material provided with a metal layer.
14. Elevator system according to any of the preceding claims, further having: an elevator car (5);

    a lifting platform (11); and

    a supporting means (9);

    wherein the elevator car (5) is held by the supporting means (9) and can be displaced within the elevator shaft (3) by means of the supporting means (9);

    wherein the supporting means (9) is held on the lifting platform (11); and

    wherein the protective roof (21) is arranged above components (15) of the lifting platform (11) that are to be protected, in particular above a drive machine (15) arranged on the lifting platform (11).
15. Elevator system according to claim 14, wherein the lifting platform (11) is designed to be temporarily fixed at various positions within the elevator shaft (3).

Images