AU2016369344A1

AU2016369344A1 - Elevator cab

Info

Publication number: AU2016369344A1
Application number: AU2016369344A
Authority: AU
Inventors: Hanspeter Bloch; Reto Hugentobler; Eric Kertész; Roger Martinelli; Oliver WUETHRICH
Original assignee: Inventio AG
Current assignee: Inventio AG
Priority date: 2015-12-16
Filing date: 2016-12-15
Publication date: 2018-07-05
Anticipated expiration: 2036-12-15
Also published as: EP3390256A1; ES2783373T3; WO2017102961A1; EP3390256B1; PL3390256T3; AU2016369344B2; CN108367887A; CN108367887B

Abstract

The invention relates to an elevator cab (1) and to an elevator system (7) equipped therewith. The elevator cab (1) has a floor, a roof (11), and a plurality of side walls (13), wherein the side walls (13) define an outer contour of the elevator cab (1) in a top view of the elevator cab (1). The elevator cab (1) also has a plurality of elongate safety bars (21), which protrude outward beyond the outer contour of the elevator cab (1) from the roof (11) with the longitudinal extension direction of said safety bars transverse to an edge (25) of the roof (11). The safety bars (21) can therefore locally block a free space (23) between the elevator cab (1) and walls (19) of an elevator shaft (5) in order to prevent, for example, a person located on the roof (11) from falling through said free space (23).

Description

(57) Zusammenfassung:

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Veroffentlicht:

— mit internationalem Recherchenbericht (Artikel 21 Absatz 3)

Es wird eine Aufzugkabine (1) und eine damit ausgestattete Aufzuganlage (7) vorgeschlagen. Die Aufzugkabine (1) weist emen Boden, ein Dach (11) und mehrere Seitenwande (13) auf, wobei die Seitenwande (13) in Draufsicht auf die Aufzugkabine (1) eine AuBenkontur der Autzugkabine (1) definieren. Die Aufzugkabine (1) weist femer mehrere langliche Sicherungsstreben (21) auf, welche von dem Dach (11) aus mit ihrer Langserstreckungsrichtung quer zu einer Kante (25) des Dachs (11) fiber die AuBenkontur der Aufzugkabine (1) nach auBen iiberstehen. Die Sicherungsstreben (21) konnen somit einen Freiraum (23) zwischen der Aufzugkabine (1) und Wanden (19) eines Aufzugschachts (5) lokal blockieren, um zu verhindem, dass beispielsweise eine auf dem Dach (11) befindliche Person durch diesen Freiraum (23) hindurch absturzen kann.

Elevator cab

The present invention relates to an elevator cab for an elevator system, and to an elevator system equipped with an elevator cab of this kind.

Elevator cabs are used in elevator systems in order to be able to convey people or objects generally vertically. In this case, the elevator cab can be moved up and down within the elevator shaft, using a drive.

It may be possible, for example during maintenance or within the context of people being evacuated from the elevator cab, for people to get onto the roof of the elevator cab and/or to stay there. It may be possible, for example, for maintenance personnel to use the roof of the elevator cab in order to be able to carry out maintenance or repair work within the elevator shaft while standing on said roof.

Safety regulations applicable for elevator systems specify that people located on the roof of the elevator cab must be safe from accidentally falling from the elevator cab into the elevator shaft.

For this purpose, for example a balustrade may be provided which is rigidly installed on the roof of the elevator cab and for example protrudes upwards beyond said roof at a sufficient height, peripherally around the roof, such that people standing on the roof cannot fall over the balustrade. However, providing a balustrade of this kind is associated with additional outlay for material and assembly, and/or the balustrade may in turn have to comply with specific safety regulations, for example in order to ensure that a person cannot become trapped between the balustrade and a ceiling of the elevator shaft.

As an alternative to a balustrade, the applicant of the present application has already proposed, in EP 1 849 732 Al, what is known as a clearance limiter for an elevator cab, in which a generically comparable elevator cab is disclosed that

-7comprises a fall-prevention arrangement projecting above an edge of the roof for protecting people from falling into the elevator shaft. A clearance limiter of this kind permanently projects laterally from the elevator cab and thus substantially closes a free space or gap between the elevator cab and for example a side wall of the elevator shaft, such that people located on the roof of the elevator cab cannot slip through this free space or gap and fall.

JP 8-133617 A discloses further fall-prevention arrangements designed as clearance limiters. The document discloses, for example, a fall-prevention arrangement comprising two folding struts that are each arranged on the rim of the roof edge. The struts hold a safety net. When folded out, the safety net is stretched between the struts, as a result of which, in order to prevent falls, the safety net can catch people in the event of a fall and can thus protect against falling into the elevator shaft.

An alternative embodiment of an elevator cab may be needed, in which suitable safety measures reliably prevent people located on a roof of the elevator cab from falling. In particular, there may be a need for an elevator cab of the kind in which the safety measures are implemented in a structurally simple manner, can be achieved cost-effectively, and/or impede movement of the elevator cab within the elevator shaft as little as possible.

A need of this kind can be met by the elevator cab and/or the elevator system according to any of the independent claims. Advantageous embodiments are defined in the dependent claims as well as the following description.

According to one aspect of the present invention, an elevator cab for an elevator system is proposed, which cab has a floor, a roof and a plurality of side walls. In this case, the side walls define an outer contour of the elevator cab in a top view of the elevator cab. The elevator cab also has a plurality of elongate safety bars for forming a fall-prevention arrangement, the longitudinal extension direction of which safety bars protrudes outward beyond the outer contour of the elevator cab

-3 from the roof, transversely to an edge of the roof. In this case, the safety bars are arranged on the roof so as to be mutually spaced, such that the person to be protected can be prevented from falling through between two adjacent safety bars.

A second aspect of the invention relates to an elevator system that comprises an elevator shaft and an elevator cab according to an embodiment of the abovementioned first aspect of the invention. In this case, the safety bars are arranged on the elevator cab such that both a spacing between adjacent safety bars, and a spacing between a safety bar and a wall of the elevator shaft or an elevator shaft component attached to the wall, are less than 30 cm for all the safety bars.

Possible features and advantages of embodiments of the invention may be considered, among others and without limiting the invention, to be dependent upon the ideas and findings described below.

As mentioned by way of introduction, safety requirements such as the European Standard EN 81-20:2014, require that people located on the roof of an elevator cab should be protected from falling. It has been found that, although both providing a balustrade and providing a clearance limiter, as is described in EP 1

849 732 Al, can meet safety requirements of this kind, this may also be associated with significant outlay for material and/or installation. It has further been found that a balustrade mounted on the roof can limit the freedom of movement of the elevator cab, for example upwards to a ceiling of the elevator shaft. Although in the embodiment shown in EP 1 849 732 Al a laterally projecting clearance limiter can largely close a gap between the elevator cab and for example an elevator shaft wall, this may also be associated for example with air resistance, which the elevator cab experiences when moving quickly through the elevator shaft, being significantly increased, and thus possibly an increased driving power for moving the elevator cab needing to be provided.

It is therefore proposed to provide a plurality of elongate safety bars on the elevator cab, which safety bars can substantially assume the function of a

-4clearance limiter of this kind. However, instead of a clearance limiter having a large surface area and extending largely over the gap between the elevator cab and the elevator shaft wall, as proposed in EP 1 849 732 Al, a plurality of elongate safety bars are provided which each project outward beyond the outer contour of the elevator cab so as to be mutually spaced in the lateral direction. In this case, the safety bars project into the gap between the elevator cab and for example the elevator shaft wall, the safety bars being designed and mutually spaced such that the remaining gaps between adjacent safety bars or between a safety bar and a wall of the elevator shaft or a component of the elevator system that is attached to said wall in a motionless manner, is sufficiently small that a person can no longer slip through and then fall.

A geometry and/or design of the elongate safety bars can be selected in a suitable manner, such that said safety bars can withstand mechanical loads, such as they occur when a person steps on the safety bar or falls for example, without deforming by more than a safety-relevant amount. In particular, the stability of the safety bar should be selected such that said bar does not deform, in the event of an occurring load of this kind, to such an extent that spacings between one safety bar and an adjacent safety bar or a wall of the elevator shaft are increased beyond a permissible amount of, for example, 30 cm.

According to one embodiment, the safety bars are structurally designed such that a width of a safety bar, measured perpendicularly to the longitudinal extension direction thereof and in parallel with the extension direction of the roof, is smaller than twice a height of the safety bar, measured perpendicularly to the longitudinal extension direction thereof and perpendicularly to the extension plane of the roof. In other words, an aspect ratio of the safety bars is intended to less than 2:1, if possible. An aspect ratio of this kind can preferably even be less than or equal to 1:1, i.e. a width of the safety bar is smaller than the height thereof. Furthermore, an aspect ratio of this kind can also be selected so as to be less than or equal to

1:2, i.e. a width of the safety bar is smaller than half the height.

-5In other words, the safety bar should not only be elongate, i.e. have a larger extension in the longitudinal extension direction thereof than in the two directions orthogonal thereto, but should also be relatively narrow, i.e. preferably have a width that is less than twice the height, or even less than the height itself, of the safety bar. Safety bars of this kind can be mechanically stable and at the same time also have a low weight.

Moreover, safety bars of this kind that act as a clearance limiter can protrude outward beyond the outer contour of the elevator cab and can thus prevent a person from slipping through the gap present there between the elevator cab and the elevator shaft wall, but without substantially filling said gap over the entire surface area thereof. In this case, an overall outer contour of the elevator cab, i.e. a contour defined by the side walls plus a contour supplemented by the laterally protruding safety bars, is not increased over a large surface area, but instead the safety bars project into the gap merely locally and in a linear manner. Since, in this case, the overall outer contour can remain smaller than in the case of the above-mentioned conventional clearance limiters for example, air resistance of the elevator cab when moving through the elevator shaft can be kept relatively small.

According to one embodiment, the safety bars have a width of less than 10 cm, preferably less than 5 cm or 3 cm. Furthermore, according to one embodiment the safety bars can have a height of more than 2 cm, preferably more than 5 cm.

Safety bars having dimensions of this kind provide adequate mechanical stability while using little material, having a low weight and contributing little to air resistance of the elevator cab.

According to one embodiment, the safety bars protrude outward beyond the outer contour of the elevator cab by a length of at least 5 cm, preferably at least 10 cm, or more preferably at least 20 cm. The safety bars thus locally block a free space or gap adjacent to the elevator cab. In this case, a total length of the safety bars can be significantly longer than the outwardly protruding part, since a part of the safety bars can be located and fastened at or on the roof of the elevator cab.

-6According to one embodiment, a lateral spacing between adjacent safety bars is greater than a width of the safety bars. In other words, a plurality of safety bars may be provided on the roof of the elevator cab, which safety bars are each elongate and project beyond the contour of the roof or of the elevator cab, the safety bars being mutually spaced in the lateral direction, i.e. in the direction in parallel with an edge of the roof, preferably at regular spacings, and a spacing between adjacent safety bars being greater than a width of an individual safety bar. Safety bars that are mutually spaced in the lateral direction to this degree can contribute to reducing the weight of the elevator cab and/or to reducing the air resistance caused by the safety bars.

According to an embodiment, the safety bars are arranged along edges of the roof at mutual spacings of less than 30 cm. A small spacing of this kind between adjacent safety bars may be necessary in order to prevent a person from being able to slip through between two adjacent safety bars.

According to one embodiment, the safety bars are formed as elongate metal profiles at least in a region protruding beyond the edge of the roof. In particular, said safety bars may be formed as elongate hollow metal profiles. Profiles of this kind can be formed having the aspect ratio mentioned above. Metal profiles or hollow metal profiles can allow for a very high mechanical loading capacity at a simultaneously low weight. A wide range of metals, for example steel, can be used as materials.

In general, however, the safety bars can also be provided using different materials and/or having a different structural or geometrical design. For example, safety bars may be formed from plastics materials, in particular mechanically highly loadable, fiber-reinforced plastics materials. Composite materials can also be used.

According to one embodiment, the safety bars can be arranged so as to be

-7 substantially flush with an upwardly oriented surface of the roof. In this case, “flush with” can mean that the upwardly oriented surface of a safety bar extends in approximately the same plane as the upwardly oriented surface of the roof. In this case, “substantially flush with” can be interpreted such that the extension plane of the upwardly oriented surface of the safety bar differs, in the vertical direction, from the extension plane of the upwardly oriented surface of the roof at most to such a small degree that there no significant offset occurs between the surface of the roof and the surface of the safety bar, either upwards or downwards. A maximum created offset, i.e. a maximally permissible deviation from an ideal level of flushness, can be selected so as to be less than 5 cm for example, preferably less than 2 cm or even less than 1 cm. This can prevent, inter alia, the safety bar from becoming a “trip hazard” for people located on the roof.

According to an embodiment, the safety bars are straight in the longitudinal extension direction thereof. In other words, the safety bars can be provided as linear components, for example as straight rods or tubes. Safety bars of this kind are easy to manufacture and mount.

Alternatively, the safety bars can be formed so as to be curved or bent in the longitudinal extension direction thereof. In this case, although the safety bar is elongate, i.e. longer than it is wide, it is not straight over the entire length thereof, but instead is provided with curves or bends at least in portions.

For example, a curve or bend (e.g. in the form of a tangent bend) of this kind may be designed such that a safety bar initially extends outward from the roof of the elevator cab perpendicularly to the edge thereof, but then has a curve or a bend such that regions of the safety bar that are further to the outside can extend obliquely to or even in parallel with the edge of the roof. In particular adjacently to corners of the roof of the elevator cab, curved or bent safety bars of this kind can sufficiently block free spaces or gaps that are also present there between the outer contour of the elevator cab and surrounding stationary structures of the elevator shaft.

According to one embodiment, the safety bars can be attached to the roof or to one of the side walls, or both to the roof and to one of the side walls. In other words, a safety bar can be fastened only to the roof. Alternatively, the safety bar can be fastened only to one of the side walls. As another alternative, the safety bar can be fastened both to the roof and to one of the side walls.

In this case, each manner of fastening may be associated with specific advantages. For example, when fastened only to the roof, the safety bar can be mounted easily.

When the safety bar is attached only to one of the side walls, a good flush fit between the safety bar and the roof can be achieved. A combination of fastening to the roof and fastening to a side wall can allow for a good compromise between simple fastening, a good flush fit, and optionally high mechanical stability. In this case, the safety bar can be rigidly connected for example to the roof and/or the side wall, and/or may be supported merely by pressure in portions.

According to one embodiment of the elevator system, at least one elevator shaft component that extends vertically through the elevator shaft and/or is attached in a stationary manner in the elevator shaft, is arranged in the elevator shaft. In this case, the safety bars are arranged on the elevator cab in regions that are laterally adjacent to the elevator shaft component.

In other words, for example guide rails that are attached in a stationary manner may be provided in the elevator shaft, or bearing means, such as cables or belts, that extend vertically through the elevator shaft may extend in the elevator shaft.

These elevator shaft components of course should not collide, when the elevator cab moves within the elevator shaft, with the safety bars that are provided on the elevator cab and project beyond the outer contour thereof. At the same time, free spaces between the elevator cab and the elevator shaft wall or the elevator shaft components should be sufficiently blocked by the safety bars. Both demands can be met by providing the safety bars in regions that are laterally adjacent to elevator shaft components of this kind.

-9In order to protect people from injury, the safety bars may be provided with a foam or another protective material, at least towards the top, and at least in the portion located in the gap or at least in the region of the free end.

It should be noted that some of the possible features and advantages of the invention are described here with reference to different embodiments. In particular, some features and advantages are described with reference to the elevator cab and other features and advantages are described with reference to the elevator system. A person skilled in the art recognizes that the features may be combined, adapted and/or exchanged as appropriate in order to yield other embodiments of the invention.

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

Fig. 1 is a side view of an elevator cab within an elevator shaft of an elevator system according to an embodiment of the present invention.

Fig. 2 is a perspective view of a portion of a roof region of an elevator cab according to an embodiment of the invention.

Fig. 3 is a top view, from above, of an elevator cab within an elevator shaft of an elevator system according to an embodiment of the present invention.

Fig. 4 is a perspective view of a safety bar on an elevator cab according to an embodiment of the invention.

Fig. 5 is a side view of an alternatively designed safety bar of an elevator cab according to an embodiment of the invention.

- 10 Fig. 6(a) to (f) show possible profiles of safety bars for elevator cabs according to the invention.

The drawings are only schematic and are not true to scale. Fike reference signs refer in different drawings to like or analogous features.

Fig. 1 shows an elevator cab 1 which can be moved in the vertical direction within an elevator shaft 5 of an elevator system 7 using a cable-like or belt-like bearing means 3. The elevator cab 1 has a floor 9, a roof 11, and a plurality of side walls

13. The elevator cab 1 further comprises an elevator door 15 on a side facing a floor 17.

A free space 23 is located on a rear side of the elevator cab 1, between the side wall 13 of the elevator cab 1 there and a wall 19 of the elevator shaft 5. For example elevator shaft components and/or a counterweight and/or other components can be attached in a stationary manner or moved in said free space 23 (not shown in Fig. 1). In this case, the free space 23 can have dimensions of over 30 cm for example, such that a person located on the roof 11 of the elevator cab 1 could slip through the free space 23 between the elevator cab 1 and the wall 19 of the elevator shaft 5 and fall.

In order to prevent this, a plurality of elongate safety bars 21 are provided on the elevator cab 1, which bars extend in an approximately horizontal direction and protrude outward, towards the walls 19 of the elevator shaft 5, beyond an outer contour of the elevator cab 1 formed by the side walls 13.

Fig. 2 is a perspective view of a portion of the elevator cab 1. Fig. 3 is a top view of the roof 11 of an elevator cab 1 within an elevator shaft 5. A plurality elongate safety bars 21 are arranged in the region of the roof 11 and project laterally beyond the side walls 13.

In this case, the safety bars 21 are arranged so as to be mutually spaced in the

- 11 lateral direction, i.e. in a direction in parallel with an edge 25 of the roof 11. In this case, a lateral spacing D between adjacent safety bars 21 is significantly greater than a width b of the individual safety bars 21. In particular, the lateral spacing D between adjacent safety bars 21 is less than 30 cm.

In this case, the elongate safety bars 21 are arranged and formed on the elevator cab 1 in such a way, and project into the free space 23 by a length 1 in such a way, that, in addition to the spacing D between adjacent safety bars 21, a spacing between the safety bars 21 and an adjacent wall 19 of the elevator shaft 5 or of an elevator shaft component 27, 29, 31 attached to said wall 19, is also less than 30 cm. The elevator shaft components can be formed for example as guide rails 29 and the supports 27 thereof, or by portions 31 of the bearing means 3.

In addition to straight safety bars 21, bent safety bars 22 may also be provided.

Bent safety bars 22 of this kind may be used, in particular close to a comer 33 of the contour of the elevator cab 1, to locally also project into parts of the free space 23 located there and to be able to block said parts in a manner that prevents falling.

Fig. 4 shows a simple embodiment of a safety bar 21 and the fastening thereof to the roof 11 of an elevator cab 1. The safety bar 21 is formed as a rod-shaped metal profile having a rectangular, in particular quadratic, cross section. A portion 37 of the safety bar 21 rests on the roof 11 and is fastened thereto by a fastening means 35 such as a screw, a rivet or the like. A plurality of fastening means 35 may also be provided in order to be able to fasten the safety bar in a torsion-resistant manner. A further portion 39 of the safety bar 21 projects transversely, preferably perpendicularly, outward beyond the edge 25 of the roof 11, and thus into the free space 23. In this case, the safety bar 21 is designed in structural terms such that the width b thereof is at most twice the height h thereof. The safety bar 21 thus projects outward from the roof 11 not in an areal manner, but instead linearly, approximately as a one-dimensional structure.

- 12 Fig. 5 shows a specific, advantageous embodiment of a safety bar 21, seen in a side view of the elevator cab 1. In this case, the portion 39 of the safety bar 21 that protrudes outward beyond the roof 11 is formed as an elongate metal profile 43.

In contrast, a portion 37 of the safety bar 21 that overlaps the roof 11 is designed merely as a relatively flat sheet and is fastened to the roof 11 using the fastening device 35. An additional angle bracket 41 may be provided in order to be able to additionally support the safety bar 21 on the side wall 13 of the elevator cab 1 by means of pressure. In an embodiment of this kind, a surface 45 of the safety bar 21 is approximately flush with a surface 47 of the roof 11. Nonetheless, the safety bar 21 can withstand relatively high mechanical loads, since it is additionally supported laterally on the side wall 13 of the elevator cab 1.

Fig. 6(a) to (f) show various possible profiles or hollow profiles 43 which can form the entire safety bar 21 or just for example portions 39 thereof. Each of these profiles contributes to a high mechanical stability of the safety bar 21, in particular when loaded in the vertical direction. The safety bars 21 can additionally comprises a foam layer or another protective material (not shown). The foam layer may completely encase the safety bars 21 or may be attached only to the upwardly oriented surface of the safety bar 21. The foam layer can further protect people from injury.

Finally, it should be noted that terms such as comprising and the like do not preclude other elements or steps, and terms such as a or one do not preclude a plurality. Furthermore, it should be noted that features or steps that have been described with reference to one of the above embodiments may also be used in combination with other features or steps of other embodiments described above. Reference signs in the claims should not be considered limiting.

Claims

Claims

1. An elevator cab (1) for an elevator system (7), comprising: a floor (9),

5 a roof (11), a plurality of side walls (13), the side walls (13) defining an outer contour of the elevator cab (1) in a top view of the elevator cab (1), and a fall-prevention arrangement that projects beyond the edge (25) of the roof (11) being provided in the region of at least one edge (25) of the roof (11), in order to

10 protect people from falling into an elevator shaft (5) of the elevator system (7), characterized in that the fall-prevention arrangement consists of a plurality of elongate, free-standing safety bars (21), the longitudinal extension direction of which safety bars protrudes outward beyond the outer contour of the elevator cab (1) from the roof

15 (11), transversely to the relevant edge (25) of the roof (11), the safety bars (21) being arranged on the roof (11) so as to be at mutual spacings (D) such that it is possible to prevent the person to be protected from falling through between two adjacent safety bars (21).

20 2. The elevator cab according to claim 1, wherein a width (b) of the safety bars (21), measured perpendicularly to the longitudinal extension direction thereof and in parallel with the extension plane of the roof (11), is smaller than twice a height (h) of the safety bars (21), measured perpendicularly to the longitudinal extension direction thereof and perpendicularly to the extension plane of the roof

25 (11).

3. The elevator cab according to either of the preceding claims, wherein a width (b) of the safety bars (21), measured perpendicularly to the longitudinal extension direction thereof and in parallel with the extension plane of the roof

30 (11), is less than 10 cm.

4.

The elevator cab according to any of the preceding claims, wherein a

- 14 height (h) of the safety bars (21), measured perpendicularly to the longitudinal extension direction thereof and perpendicularly to the extension plane of the roof (11), is greater than 2 cm.

5 5. The elevator cab according to any of the preceding claims, wherein the safety bars (21) protrude outward beyond the outer contour of the elevator cab (1) by a length (1) of at least 5 cm.

6. The elevator cab according to any of the preceding claims, wherein a

10 lateral spacing (D) between adjacent safety bars (21) is greater than a width (b) of the safety bars (21).

7. The elevator cab according to any of the preceding claims, wherein the safety bars (21), are arranged along edges (25) of the roof (11) so as to be at

15 mutual spacings (D) of less than 30 cm.

8. The elevator cab according to any of the preceding claims, wherein the safety bars (21) are formed as elongate metal profiles (43), in particular hollow metal profiles, at least in a region (39) protruding beyond the edge (25) of the roof

20 (11).

9. The elevator cab according to any of the preceding claims, wherein the safety bars (21), are arranged so as to be substantially flush with an upwardly oriented surface (47) of the roof (11).

10. The elevator cab according to any of the preceding claims, wherein the safety bars (21) are straight in the longitudinal extension direction thereof.

11. The elevator cab according to any of the preceding claims 1 to 9, wherein

30 the safety bars (21) are curved or bent in the longitudinal extension direction thereof.

- 15 12. The elevator cab according to any of the preceding claims, wherein the safety bars (21) are attached to the roof (11) or to one of the side walls (13), or both to the roof (11) and to one of the side walls (13).

5 13. An elevator system (7), comprising:

an elevator shaft (5);

an elevator cab (1) according to any of claims 1 to 12, wherein the safety bars (21) of a fall-prevention arrangement are arranged on the elevator cab (1) such that both a spacing (D) between adjacent safety bars (21),

10 and a spacing between a safety bar (21) and a wall (19) of the elevator shaft (5) or an elevator shaft component (27, 29, 31) attached to the wall (19), are less than 30 cm for all the safety bars (21).

14. The elevator system according to claim 13, wherein at least one elevator

15 shaft component (27, 29, 31) that extends vertically through the elevator shaft (5) and/or is attached in a stationary manner in the elevator shaft (5) is arranged in the elevator shaft (5), and wherein the safety bars (21) are arranged on the elevator cab (1) in regions that are laterally adjacent to the elevator shaft components (27, 29,31).

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