Service assembly for an elevator installation, elevator installation and method for setting up the service assembly

Abstract

The invention relates to a service assembly for an elevator installation (20). The service assembly comprises: a first maintenance platform (40) which can be arranged in an elevator shaft (22) of the elevator installation (20), in which an elevator car (24) of the elevator installation (20) is movable, in a first idle position and in a first work position, and which has a first tread surface (44) designed to carry a service worker when the service worker is located in the elevator shaft (22) and performs maintenance work on the elevator installation (20); at least one first idle mount (72) designed to hold the first maintenance platform (40) in the first idle position in such a way that unrestricted operation of the elevator installation (20) is possible; and at least one first work mount (48) which is located on a shaft wall (34, 36) of the elevator shaft (22) and is designed to hold the first maintenance platform (40) in the first work position in such a way that the first tread surface (44) is oriented horizontally.

Description

[0001] Service arrangement for an elevator system, elevator system and method for setting up the service arrangement

[0002] Description

[0003] The present invention relates to a service arrangement for an elevator system, the elevator system and a method for setting up the service arrangement, in particular in an elevator shaft of the elevator system.

[0004] In elevator systems, at least one elevator car can typically be moved within an elevator shaft between different floors in a building. In a commonly used elevator type, the elevator car is held by a cable-like suspension element coupled to a counterweight. By moving the cable-like suspension element, the elevator car can be moved vertically within the elevator shaft. For this purpose, the suspension elements generally run over a traction sheave, which can be driven in rotation by a drive motor.

[0005] In many elevator systems, the drive motor is located in the upper area of ​​the elevator shaft, for example, directly below or on the roof of the elevator shaft. If maintenance work, such as servicing and / or repairs, needs to be carried out in this area of ​​the elevator shaft, for example on the drive motor, a service worker can climb onto the roof of the elevator car, for example, through a service hatch in the car roof, and carry out the maintenance from there. For this purpose, the elevator system is usually switched to service mode. However, it may be that the elevator car cannot and / or is not allowed to be positioned high enough in the elevator shaft for the service worker to reach the components of the elevator system that require maintenance. For this reason, it is common practice to have service arrangements in the upper area of ​​elevator shafts, such asService platforms are to be provided which are higher than the car roof and via which the service worker can access the components of the elevator system that are to be serviced. The highest position that can be reached in the elevator shaft in service mode can be referred to as the service position. This is usually well below the highest normal operating position that can be reached during normal operation. WO 2017072255 A1 describes an elevator car that can be moved in an elevator shaft and has a maintenance platform on its car roof that can be arranged in several positions on the car roof. An upper yoke of a catch frame for supporting a car body of the elevator car comprises means for receiving the maintenance platform. The receiving means are four insertion openings for forming docking points for the maintenance platform, via which the maintenance platform can be fastened to the upper yoke.The maintenance platform is permanently coupled to the yoke and can be pivoted from a rest position to a working position. The maintenance platform can be stored in the rest position during normal operation of the elevator system and rotated into the working position for maintenance work. The permanent coupling of the maintenance platform to the elevator car has the advantage of ensuring that the maintenance platform is permanently positioned as intended, both during normal operation and during service work. At the same time, however, this permanent coupling limits the degrees of freedom in the arrangement of the maintenance platform. For example, the maintenance platform cannot be positioned at different heights in the elevator shaft relative to the elevator car.

[0006] Among other things, there may be a need for a service arrangement for an elevator system that has at least one maintenance platform that can be arranged in different positions independently of the elevator car and / or that allows a service worker to work at different height levels in the elevator shaft using the maintenance platform, in particular independently of the elevator car. Furthermore, there may be a need for the elevator system with the service arrangement and for a method for setting up the service arrangement in the elevator shaft of the elevator system.

[0007] Such a need can be met by the subject matter according to one of the independent claims. Advantageous embodiments are defined in the dependent claims and the following description.

[0008] A first aspect of the invention relates to a service arrangement for an elevator system.

[0009] The service arrangement comprises: a first maintenance platform which can be arranged in a first rest position and in a first working position in an elevator shaft of the elevator system, in which an elevator car of the elevator system can be displaced, and which has a first tread surface which is designed to support a service worker when the service worker is in the elevator shaft and servicing the elevator system; at least one first rest holder which is designed to hold the first maintenance platform in the first rest position such that unrestricted operation of the elevator system is possible; and at least one first working holder which is arranged on a shaft wall of the elevator shaft and which is designed to hold the first maintenance platform in the first working position such that the first tread surface is aligned horizontally.The first working support is arranged in a vertically extending cross-sectional area of ​​the elevator shaft, which the elevator car of the elevator system at least partially overlaps in its highest service position.

[0010] A second aspect of the invention relates to the elevator system, comprising: the elevator car, which is displaceable in the elevator shaft, and the service arrangement.

[0011] A third aspect of the invention relates to a method for setting up the service arrangement in the elevator shaft of the elevator system. The method comprises: removing the first maintenance platform of the service arrangement from the first resting mount of the service arrangement, which mounts the first maintenance platform in its first resting position; and arranging the first maintenance platform on the first working mount of the service arrangement, which mount is arranged on a shaft wall of the elevator shaft and which holds the first maintenance platform in its first working position, such that the first tread surface of the first maintenance platform is aligned horizontally.

[0012] It should be understood that some of the features, embodiments, and advantages described below are described exclusively with reference to one of the above aspects, and that these features, embodiments, and advantages can, however, easily be transferred to one or two of the other aspects, which is why a repeated description of these features, embodiments, and advantages has been omitted in order to provide a concise description. The first working position allows the service worker to stand independently of the elevator car and / or safely and comfortably in the elevator shaft when maintenance work is to be performed in the elevator shaft. The first rest position allows the first maintenance platform to be held in such a way that unrestricted operation of the elevator system is possible when no maintenance of the elevator system is to be performed.It is possible that the first rest support and any additional rest supports, unlike the first work support and any additional work supports, are not arranged on the shaft wall. Preferably, the first rest support and any additional rest supports, as well as the first work support and any additional work supports, are arranged on the shaft wall. Optionally, the first maintenance platform can be suspended or adjusted in the first rest support in the first rest position, in which case the first step surface of the first maintenance platform can be vertically oriented.

[0013] Preferably, the first maintenance platform and all other maintenance platforms are kept in the first rest position to enable unrestricted operation of the elevator system.

[0014] The first maintenance platform can be stored in the first rest position independently of the first working position when not needed, especially during normal operation of the elevator system. This independent storage capability can contribute to a high degree of flexibility in the layout of the first maintenance platform.

[0015] Optionally, the service arrangement may comprise two or more first working supports, which are arranged, for example, at different height levels in the elevator shaft and / or which are arranged on different sides of the shaft wall or on different shaft walls, wherein the first maintenance platform can then be arranged in correspondingly two or more first working positions and / or a second maintenance platform can be arranged in addition to the first maintenance platform.

[0016] The first tread surface can, for example, be part of a large-surface side of the first maintenance platform. The first tread surface can, for example, have an anti-slip feature. The anti-slip feature can, for example, comprise several studs and / or bulges on the first maintenance platform.

[0017] The cross-sectional area of ​​the elevator shaft comprises the entire shaft cross-section for the height extending along the elevator shaft, at which at least the first work support is located. This allows the service worker to stand in an area during maintenance in which the elevator car can be located during normal operation of the elevator system. This allows a vertically extending service area between the elevator car and a shaft ceiling of the elevator shaft to be kept so small during normal operation that the elevator shaft can be kept as small as possible in the vertical direction, in particular so small that there is no space for the service worker, and that during servicing work the service area is large enough for the service worker to stand and work comfortably in the service area.The highest service position can, for example, be defined by a standard and can be the highest position permitted for a service trip.

[0018] According to one embodiment, the first working support is designed and arranged such that it is located between the elevator car and the shaft wall when the elevator car is in its highest normal operating position. This allows the elevator car to pass the first working support during normal operation of the elevator system without touching it, particularly when the first maintenance platform is arranged in the first working position. The highest normal operating position of the elevator car usually corresponds to the position when the elevator car has stopped on the top floor.

[0019] According to one embodiment, the first work support comprises a first work support element and a second work support element, which are arranged on opposite shaft walls of the elevator shaft. This can contribute to a particularly stable fastening of the first maintenance platform in the first working position. In particular, the first maintenance platform can be coupled to the first work support such that one end of the maintenance platform is connected to the first work support element on one side of the first tread surface, and the other end of the first maintenance platform is connected to the second work support element on the other side of the first tread surface. In the first working position, the first maintenance platform then extends from the shaft wall to which the first work support element is fastened to the other shaft wall to which the second work support element is fastened.

[0020] According to one embodiment, the first work support element and the second work support element are arranged at the same height in the elevator shaft. This can easily contribute to ensuring that the first maintenance platform, and in particular the first tread, are aligned horizontally when the first maintenance platform is arranged in the first working position.

[0021] According to one embodiment, the first work support comprises a clamp that is attached to the shaft wall at both of its clamp ends and that is spaced from the shaft wall between its two clamp ends such that a gap is formed between the clamp and the shaft wall between its two clamp ends. The clamp is designed such that at least one support means and / or at least one counterweight of the elevator system can be moved through the first gap. This can contribute to optimal use of the space in the elevator shaft, since the first work support can be arranged with the aid of the first clamp in a region of the shaft wall in which the support means and / or at least temporarily the counterweight are located. For example, the first and / or second work support element can be designed as the first clamp. In other words, the first clamp can serve as the first and / or second work support element.

[0022] According to one embodiment, the first rest support is arranged in the elevator shaft above the first working support, and / or the first rest support is fastened to a frame of the elevator system, which is located in the elevator shaft and is designed to hold a drive motor of the elevator system and / or guide rails of the elevator system. The fact that the first rest support is arranged in the elevator shaft above the first working support can help ensure that the first maintenance platform does not disrupt the normal operation of the elevator system when it is arranged in the first rest position. The fact that the first rest support is fastened to the frame can help eliminate the need for a dedicated fastening for the first rest support.According to one embodiment, the first rest support is arranged in a vertically extending region of the elevator shaft, which is located between the elevator car and a shaft wall of the elevator shaft. This is particularly the case when the elevator car is in its highest normal operating position; and / or the first rest support is designed and arranged such that the first maintenance platform is arranged in a vertically extending region of the elevator shaft between the elevator car and the shaft wall when the first maintenance platform is arranged in the rest position. This is particularly the case when the elevator car is in its highest normal operating position. This can help ensure that the first maintenance platform does not disrupt the normal operation of the elevator system when it is arranged in the rest position, i.e., the first rest support.

[0023] According to one embodiment, the first rest bracket is designed and arranged such that the first tread extends in the vertical direction when the first maintenance platform is arranged in the first rest position. This can help prevent the first maintenance platform from being loaded, in particular stepped on, by the service worker when it is arranged in the first rest position. Furthermore, the vertical orientation of the first maintenance platform in the first rest position can contribute to a space-saving arrangement of the first maintenance platform in the first rest position. Furthermore, a lower end of the vertically arranged maintenance platform is located relatively far down in the upper region of the elevator shaft, so that this lower end can be reached relatively easily by the service worker.

[0024] According to one embodiment, the first work holder is at least partially designed as a support on which the first maintenance platform rests when the first maintenance platform is arranged in the first working position. Alternatively or additionally, the first rest holder is at least partially designed as a suspension into which the first maintenance platform is suspended or into which the first maintenance platform is set when the first maintenance platform is arranged in the first rest position. The support can contribute to a very stable and resilient arrangement of the first maintenance platform in the first working position. For example, the first work holder element and / or the second work element can each have a support. The orThe supports can each have, for example, a support surface on which the corresponding end of the first maintenance platform rests when the first maintenance platform is arranged in the first working position. Alternatively or additionally, the first work support, in particular the first work support elements, can have one, two or more pins arranged on the support surfaces, extending vertically upward, and inserted into corresponding recesses at the ends of the first maintenance platform when the first maintenance platform is arranged in the first working position.

[0025] Alternatively, the first work support, in particular the first work support elements, may comprise one, two or more tabs into which corresponding hooks are inserted at the ends of the first maintenance platform when the first maintenance platform is arranged in the first working position, so that the first maintenance platform is suspended in the first work support, in particular in the first work support elements, in the first working position.

[0026] The first rest bracket, designed as a suspension, can contribute to a very secure and / or space-saving arrangement of the first maintenance platform in the first rest position. The suspension can, for example, have one or more hooks into which recesses at the ends of the first maintenance platform are hooked when the first maintenance platform is arranged in the first rest position. Alternatively, the first rest bracket can have one or more recesses into which corresponding hooks at the ends of the first maintenance platform are inserted when the first maintenance platform is arranged in the first rest position.If the first rest bracket is designed as a suspension such that the first maintenance platform is set in the first rest bracket, the first rest bracket itself can be suspended and have a storage area on which the first maintenance platform can be placed in the first rest position, in particular such that the first step surface is oriented substantially vertically.

[0027] Regardless of the type of suspension, suspending the first maintenance platform in the first rest position can result in an end of the first maintenance platform hanging downwards in this situation being relatively low down in the elevator shaft and thus being easily accessible to the service employee standing on the roof of the elevator car, so that the service employee can remove the first maintenance platform from the first rest position and move it to the first working position for maintenance work, and can simply hang or place it back in the first rest position after maintenance work.

[0028] According to one embodiment, the service arrangement comprises a rest position detector arranged and configured such that the rest position detector generates a rest signal when the first maintenance platform is arranged in the first rest position. The rest signal can, for example, be representative of the first maintenance platform being arranged in the rest position. The rest signal can be transmitted from the rest position detector to the elevator control system of the elevator system. In response to receiving the rest signal, the elevator system can enable normal operation of the elevator system and, for example, enable the vertical displacement of the elevator car in the elevator shaft. Preferably, the elevator system enables normal operation of the elevator system if a rest signal is transmitted from each maintenance platform. This can contribute to the safe operation of the elevator system.

[0029] The first rest position detector can, for example, be arranged on the first rest support and / or mechanically coupled to it. The first rest position detector can, for example, comprise a signal receiver that is activated when the first maintenance platform is mechanically coupled to the first rest support as intended. The signal receiver can, for example, comprise a push button, a light barrier, a light sensor, a Hall sensor, or similar.

[0030] Alternatively or in addition to the rest position detector, the service arrangement may comprise a working position detector arranged and configured such that the working position detector generates a working signal when the first maintenance platform is arranged in the first working position. The working signal may, for example, be representative of the first maintenance platform being arranged in the working position. The working signal may be transmitted from the working position detector to an elevator control system of the elevator installation. In response to receiving the working signal, the elevator installation may take one or more safety measures, for example, prevent vertical displacement of the elevator car in the elevator shaft. This may contribute to the safety of the service worker.

[0031] The first work position detector can optionally be arranged on the first work support and / or mechanically coupled to it. The first work position detector can, for example, comprise a signal receiver that is activated when the first maintenance platform is mechanically coupled to the first work support as intended. The signal receiver can, for example, comprise a push button, a light barrier, a light sensor, or similar.

[0032] Optionally, the first maintenance platform itself can serve as a signal generator that activates the corresponding signal receiver when the first maintenance platform is arranged in the working position or in the rest position, for example, when the signal receiver has the push button or the light barrier. Alternatively, a dedicated signal generator can be arranged on the first maintenance platform, which is designed to activate the corresponding signal receiver when the first maintenance platform is arranged in the working position or in the rest position. For example, the signal generator can be a light source or a magnet if the signal receiver has the light sensor or the Hall sensor, respectively.

[0033] According to one embodiment, the service arrangement comprises: a second maintenance platform which can be arranged in the elevator shaft in a second rest position and in a second working position, and which has a second tread surface which is designed to support the service worker when the service worker is in the elevator shaft and servicing the elevator installation; at least one second rest holder which is designed to hold the second maintenance platform in the second rest position such that unrestricted operation of the elevator installation is possible; and at least one second working holder which is arranged on the shaft wall and which is designed to hold the second maintenance platform in the second working position such that the second tread surface is aligned horizontally.The above-described embodiments, features, and advantages of the first maintenance platform, the first work mount, and the first rest mount can be readily applied to embodiments, features, and advantages of the second maintenance platform, the second work mount, and the second rest mount. Therefore, these embodiments, features, and advantages will not be presented again here to avoid unnecessary repetition and to provide a concise description.

[0034] The first rest support, the second rest support, and optionally additional rest supports can be designed as a single component. In particular, the first rest support and the second rest support can be designed together on one component.

[0035] Optionally, the service arrangement may comprise two or more second work supports, which may, for example, be arranged at different height levels in the elevator shaft and / or arranged on different sides of the shaft wall or on different shaft walls, wherein the second maintenance platform can then be arranged in two or more second work positions accordingly. For example, the service arrangement may comprise two or more first work supports and two or more second work supports, each arranged one above the other.

[0036] Optionally, the first work mount and the second work mount can be formed from a single piece. For example, the first work mount and the second work mount can be two different sections of a single body, for example the clamp described above. Thus, one clamp can serve to provide two work mounts. If the work mounts are each formed in two parts, the second work mount can have a third work holding element and a fourth work holding element. In this case, two of the work holding elements of different work mounts can each be formed in one piece. For example, the first and third work holding elements can be formed in one piece and / or the second and fourth work holding elements can be formed in one piece. Alternatively or additionally, the first and second rest mounts can be formed at least partially in one piece.For example, both rest supports can have the same element of the frame as a base, for example, a cross member of the frame, and each have one, two, or more hooks on the base for suspending the maintenance platforms. Alternatively, one rest support can be designed as a suspension that is suspended from the frame and has a first storage area for storing the first maintenance platform in the first rest position and a second storage area for storing the second maintenance platform in the second rest position, wherein the first storage area serves as the first rest support and the second storage area serves as the second rest support.

[0037] According to one embodiment, the first work support and the second work support are arranged at different heights in the elevator shaft. This allows the service worker to work at different height levels in the elevator shaft and / or allows the service worker to use the maintenance platforms in their working positions like one or more steps.

[0038] Embodiments of the invention are described below with reference to the accompanying drawings, wherein neither the drawings nor the description are to be construed as limiting the invention.

[0039] Fig. 1 shows a perspective, partially sectioned view of an embodiment of a service arrangement for an elevator installation in a first state.

[0040] Fig. 2 shows a first partially sectioned side view of the service arrangement according to Figure 1.

[0041] Fig. 3 shows a partially sectioned rear view of the service arrangement according to Figure 1.

[0042] Fig. 4 shows a perspective, partially sectioned view of the service arrangement according to Figure 1 in a second state.

[0043] Fig. 5 shows a schematic side view of an embodiment of the elevator system with the service arrangement according to Figure 1.

[0044] Fig. 6 shows a schematic side view of an embodiment of the elevator system with the service arrangement according to Fig. 1. Fig. 7 shows a flowchart of a method for setting up the service arrangement according to Fig. 1.

[0045] The figures are merely schematic and not to scale. The same reference numerals designate identical or equivalent features in the various figures.

[0046] Fig. 1 shows a perspective, partially sectioned view of an embodiment of a service arrangement for an elevator system 20 in a first state. The elevator system 20 has an elevator car 24, which can be moved in an elevator shaft 22 of the elevator system 20 between height levels of different floors in a building (not shown). For this purpose, the elevator car 24 is mechanically coupled to a cable-like support means 28, which is coupled to a counterweight (not shown) of the elevator system 20. The support means 28 runs over a traction sheave 27 coupled to a drive machine 26 of the elevator system 20. The traction sheave 27 can be driven in rotation by the drive machine 26, so that the support means 28 and thus the elevator car 24 can be moved within the elevator shaft 22, the latter in particular can be moved vertically.The elevator system 20 is suitable for transporting people and / or loads within the building from one floor to another.

[0047] The drive machine 26 is located in the upper area of ​​the elevator shaft 22, in particular directly beneath a shaft ceiling 80 (see Figures 2 and 3) of the elevator shaft 22. If maintenance work, such as servicing and / or repairs, needs to be carried out in this area of ​​the elevator shaft 22, for example on the drive machine 26 and / or on the traction sheave 27, a service worker can, for example, climb onto the car roof through a service hatch (not shown) in a car roof of the elevator car 24 and carry out the maintenance work from there. For this purpose, the elevator car 24 can be moved to its highest service position. To enable the service worker to access all components of the elevator system 20 that require maintenance, the elevator system 20 has a service arrangement that is mounted higher than the car roof and via which the service worker gains access to the components of the elevator system 20 that require maintenance.The service arrangement comprises at least a first maintenance platform 40, which can be arranged in the elevator shaft 22 of the elevator system 20 in a first rest position or in a first working position. In the exemplary embodiment shown in Figure 1, the service arrangement additionally comprises a second maintenance platform 42, which can be arranged in the elevator shaft 22 in a second rest position or in a second working position. In the first state shown in Figure 1, the maintenance platforms 40, 42 are arranged in their working positions, which is represented by the working platforms 40, 42 shown in solid lines. Furthermore, Figure 1 also shows, by way of example, how the maintenance platforms 40, 42 would be arranged in their rest positions.

[0048] The first maintenance platform 40 has a first tread 44. The first tread 44 is designed to support the service worker when the service worker is in the elevator shaft 22 and servicing the elevator system 20. The first tread 44 can, for example, be part of a large-area side of the first maintenance platform 40. The first tread 44 can, for example, have an anti-slip feature. The anti-slip feature can, for example, comprise a plurality of studs and / or bulges on the first maintenance platform 40.

[0049] The second maintenance platform 42 has a second tread 46 designed to support the service worker when the service worker is in the elevator shaft 22 and servicing the elevator system 20. The second tread 46 can, for example, be part of a large-area side of the second maintenance platform 42. The second tread 46 can, for example, have an anti-slip feature. The anti-slip feature can, for example, comprise a plurality of studs and / or bulges on the second maintenance platform 42.

[0050] The service arrangement has at least one first work mount 48, which is arranged on a first shaft wall 34 of the elevator shaft 22. The first work mount 48 is designed to hold the first maintenance platform 40 in the first working position such that the first tread 44 is aligned horizontally. The first work mount 48 can be arranged in a vertically extending cross-sectional area of ​​the elevator shaft 22, which the elevator car 24 at least partially overlaps in its highest position, i.e., the highest normal operating position, during normal operation of the elevator system 20. The first work mount 48 can be designed and arranged such that it is arranged between the elevator car 24 and the shaft wall when the elevator car 24 is in its highest normal operating position.

[0051] The first work support 48 can have a first work support element 52 and a second work support element 54, which are arranged on opposite shaft walls, for example on a first shaft wall 34 and a second shaft wall 36 (see Figure 3), respectively, of the elevator shaft 22. In particular, the first maintenance platform 40 can be coupled to the first work support 52 such that one end of the first maintenance platform 40 on one side of the first tread 44 is connected to the first work support element 52 and the other end of the first maintenance platform 40 on the other side of the first tread 44 is connected to the second work support element 54. In the first working position, the first maintenance platform 40 extends from the first shaft wall 34, to which the first work support element 52 is attached, to the second shaft wall 36, to which the second work support element 54 is attached.The first work holding element 52 and the second work holding element 54 can be arranged at the same height in the elevator shaft 22.

[0052] Optionally, the first work support 48 can be designed as a clamp 90, which is fastened at its two clamp ends 92 to one of the shaft walls, in particular to the second shaft wall 36, and which is spaced from the second shaft wall 36 between its two clamp ends 92 such that a gap is formed between the clamp 90 and the second shaft wall 36 between its two clamp ends 92. The clamp 90 can be designed such that the support means 28 and / or the counterweight of the elevator system 20 can be moved through the gap. For example, the second work support element 54 can be designed as a clamp 90.

[0053] The first work support 48 can be at least partially configured as a support on which the first maintenance platform 40 rests when the first maintenance platform 40 is arranged in the first working position. For example, the first work support element 52 and / or the second work support element 54 can each have a support. The support(s) can each have, for example, a support surface 69 on which the corresponding end of the first maintenance platform 40 rests when the first maintenance platform 40 is arranged in the first working position.Alternatively or additionally, the first work support 48, in particular the first and / or second work support element 52, 54, may each comprise one, two or more pins 68, in other words "bolts", which are arranged on the support surfaces 69, extend vertically upwards and are inserted into corresponding recesses 70 at the ends of the first maintenance platform 40 when the first maintenance platform 40 is arranged in the first working position.

[0054] Alternatively, the first work support 48, in particular the first and second work support elements 52, 54, may have one, two or more tabs (not shown) into which corresponding hooks on the ends of the first maintenance platform 40 are inserted when the first maintenance platform 40 is arranged in the first working position, so that the first maintenance platform 40 is then suspended in the first working position in the first work support 48, in particular in the corresponding work support elements 52, 54.

[0055] The service arrangement can additionally have a second work mount 50, which is arranged on the shaft wall 34, 36 and which is designed to hold the second maintenance platform 42 in the second working position such that the second tread 46 is aligned horizontally. The first work mount 48 and the second work mount 50 can be arranged at different heights in the elevator shaft 22. The second work mount 50 is designed to hold the second maintenance platform 42 in the second working position such that the second tread 46 is aligned horizontally. The second work mount 50 can be arranged in a vertically extending cross-sectional area of ​​the elevator shaft 22, which the elevator car 24 at least partially overlaps in its highest normal operating position during normal operation of the elevator system 20.The second working support 50 may be constructed and arranged to be located between the elevator car 24 and the shaft wall when the elevator car 24 is in its highest normal operating position.

[0056] The second work holder 50 may include a third work holding element 56 and a fourth

[0057] Work support element 58, which are arranged on opposite shaft walls, for example on the first shaft wall 34 or on the second shaft wall 36 (see Figure 3), of the elevator shaft 22. In particular, the second maintenance platform 42 can be coupled to the second work mount 50 such that one end of the second maintenance platform 42 on one side of the second tread 46 is connected to the third work support element 56 and the other end of the second maintenance platform 42 on the other side of the second tread 46 is connected to the fourth work support element 58. In the second working position, the second maintenance platform 42 extends from the first shaft wall 34, to which the third work support element 56 is fastened, to the second shaft wall 36, to which the fourth work support element 58 is fastened.The third work holding element 56 and the fourth work holding element 58 can be arranged at the same height in the elevator shaft 22.

[0058] Optionally, the second work support 50 can also be designed as a clamp 90, which is fastened at its two clamp ends 92 to the shaft wall, in particular to the second shaft wall 36, and which is spaced from the second shaft wall 36 between its two clamp ends 92 such that a gap is formed between the clamp 90 and the second shaft wall 36 between its two clamp ends 92. The clamp 90 can be designed such that the support means 28 and / or the counterweight of the elevator system 20 can be moved through the gap. For example, the fourth work support element 58 can be designed as a clamp 90.

[0059] The second work mount 50 can be at least partially configured as a support on which the second maintenance platform 42 rests when the second maintenance platform 42 is arranged in the second working position. For example, the third work mount element 56 and / or the fourth work mount element 58 can each have a support. The support(s) can each have, for example, the support surface 69 on which the corresponding end of the second maintenance platform 42 rests when the second maintenance platform 42 is arranged in the second working position.Alternatively or additionally, the second work support 50, in particular the third and / or fourth work support element 56, 58 may each comprise one, two or more pins 68, in other words "bolts", which are arranged on the support surfaces 69, extend vertically upwards and are inserted into corresponding recesses 70 at the ends of the second maintenance platform 42 when the first maintenance platform 40 is arranged in the first working position.

[0060] Alternatively, the second work support 50, in particular the third and fourth work support elements 56, 58, may have one, two or more tabs (not shown) into which corresponding hooks (not shown) at the ends of the second maintenance platform 42 are inserted when the second maintenance platform 42 is arranged in the second working position, so that the second maintenance platform 42 is then suspended in the second work support 50, in particular in the corresponding work support elements 56, 58, in the second working position.

[0061] Optionally, the service arrangement can have two or more first work supports 48. The first work supports 48 can, for example, be arranged at different height levels in the elevator shaft 22, for example overlapping and / or on the same side of the elevator shaft 22. The first maintenance platform 40 can then be arranged in two or more first work positions accordingly. For example, another first work support 48, which serves to hold the first maintenance platform 40, can have a fifth work support element 60, which is arranged on the first shaft wall 34, and a sixth work element 62, which is arranged on the second shaft wall 36. The fifth work support element 60 can be arranged above the first work support element 52, and the sixth work support element 62 can be arranged above the second work support element 54.

[0062] Optionally, the service arrangement can comprise two or more second work supports 50, which can be arranged, for example, at different height levels in the elevator shaft 22, for example overlapping and / or on the same side of the elevator shaft 22. The second maintenance platform 42 can then be arranged in correspondingly two or more second work positions. For example, a further second work support 50, which serves to hold the second maintenance platform 42, can comprise a seventh work support element 64, which is arranged on the first shaft wall 34, and an eighth work support element 66, which is arranged on the second shaft wall 36. The seventh work support element 64 can be arranged below the third work support element 56, and the eighth work support element 66 can be arranged below the fourth work support element 58.For example, the service assembly may include two or more first work supports 48 and two or more second work supports 50, each arranged one above the other. Optionally, one of the first work supports 48 and one of the second work supports 50 may be formed at least partially from one piece. For example, the second and eighth work support members 54, 66 may be two different portions of a single body, such as the clamp 90 described above. Similarly, the sixth and fourth work support members 62, 58 may be two different portions of a single other body, such as the other clamp 90 described above. Thus, one clamp 90 may serve to provide two work supports 54, 66, 62, 58.

[0063] If the work holders 48, 50 are each formed in two parts, i.e., they have the corresponding work holding elements 52 to 66, two of the work holding elements 52 to 66 of different work holders 48, 50 can be formed in one piece. For example, the first and seventh work holding elements 52, 64 can be formed in one piece and / or the second and eighth work holding elements 54, 66 can be formed in one piece.

[0064] The service arrangement has at least one rest mount 72, in particular a first rest mount 72 and a second rest mount 74. The first rest mount 72 is designed to hold the first maintenance platform 42 in the first rest position such that unrestricted operation of the elevator system 20 is possible. The first maintenance platform 42 can be stored in the first rest position independently of the first working position when it is not needed, in particular during normal operation of the elevator system 20. The first rest mount 74 can be designed and arranged such that the first tread 44 extends in the vertical direction when the first maintenance platform 40 is arranged in the first rest position.

[0065] The first rest support 72 may be arranged in the elevator shaft 22 above the first work support 48. The first rest support 74 may be arranged in a vertically extending region of the elevator shaft 22 that is located between the elevator car 24 and the shaft ceiling 80 of the elevator shaft 22 when the elevator car 24 is in its highest service position. Alternatively or additionally, the first rest support 74 may be configured and arranged such that the first maintenance platform 40 is arranged between the elevator car 24 in its highest service position and the shaft ceiling 80 when the first maintenance platform 40 is arranged in the rest position.

[0066] The first rest support 74 can be arranged in a vertically extending region of the elevator shaft 22, which is located between the elevator car 24 and the shaft wall 34, 36 or the other shaft walls of the elevator shaft 22 when the elevator car 24 is in its highest normal operating position. Alternatively or additionally, the first rest support 74 can be designed and arranged such that the first maintenance platform 40 is arranged between the elevator car 24 in its highest normal operating position and the shaft wall 34, 36 or the other shaft walls when the first maintenance platform 40 is arranged in the rest position.

[0067] For example, the first rest bracket 72 can be attached to a frame 30 of the elevator system 20, which is located in the elevator shaft 22 and which is designed to hold the drive machine 26 and / or guide rails 32 of the elevator system 20.

[0068] The first rest mount 74 can be at least partially configured as a suspension into which the first maintenance platform 40 can be suspended or into which the first maintenance platform 40 can be adjusted when the first maintenance platform 40 is arranged in the first rest position. The suspension can, for example, comprise one or more hooks 86 into which the recesses 70 at the ends of the first maintenance platform 40 can be suspended when the first maintenance platform 40 is arranged in the first rest position. Alternatively, the first rest mount 74 can comprise one or more recesses (not shown) into which corresponding hooks (not shown) at the ends of the first maintenance platform 40 can be inserted when the first maintenance platform 40 is arranged in the first rest position.If the first rest bracket 74 is designed as a suspension such that the first maintenance platform 40 is set in the first rest bracket, the first rest bracket 74 itself can be suspended and have a storage area 77 on which the first maintenance platform 40 can be placed in the first rest position, in particular such that the first step surface 44 is oriented substantially vertically.

[0069] The rest mount 72 can have a second rest mount 76, which is designed to hold the second maintenance platform 42 in the second rest position such that unrestricted operation of the elevator system 20 is possible. The first rest mount 74 and the second rest mount 76 can form the rest mount 72 and / or be formed as a single piece. For example, both rest mounts 74, 76 can have the same element of the frame 30 as a base, for example a cross member of the frame 30, and one, two, or more of the hooks 86 on the base for suspending the maintenance platforms 40, 42. Alternatively, the rest mount 72 can be designed as a suspension that is suspended from the frame 30 and has two storage areas 77 for storing the first maintenance platform 40 in the first rest position and for storing the second maintenance platform 42 in the second rest position, respectively.The storage area 77 can be divided into a first storage area, which serves as the first rest holder 74, and a second storage area, which serves as the second rest holder.

[0070] The first working position allows the service worker to stand independently of the elevator car 24 and / or safely and comfortably in the elevator shaft 22 when maintenance work is to be performed in the elevator shaft 22. The first rest position allows the first maintenance platform 40 to be held in such a way that unrestricted operation of the elevator system 22 is possible when no maintenance is to be performed on the elevator system 22. It is possible that the first rest bracket 74 and any additional rest brackets 72, 76, unlike the first working bracket 48 and any additional working brackets 50, are not arranged on one of the shaft walls 34, 36.

[0071] Fig. 2 shows a first, partially sectioned, side view of the service arrangement according to Fig. 1. Also shown in Fig. 2 are a car door 78 of the elevator car 24 and mounting recesses 82 of the first, third, fifth, and seventh work support elements 52, 56, 60, 64. The mounting recesses 82 enable the respective work support elements 52, 56, 60, 64 to be mounted on the first shaft wall 34. - TI -

[0072] It is further apparent from Figure 2 that the service arrangement can have one, two, or more rest position detectors 84, which are arranged and configured such that they each generate a rest signal when the corresponding maintenance platform 40, 42 is arranged in the corresponding rest position. The rest signal can, for example, be representative of the first maintenance platform 40 being arranged in the rest position. The rest signal can be transmitted from the rest position detector 84 to an elevator control of the elevator installation 20, which, for example, controls the drive machine 26. In response to receiving the rest signal, the elevator installation 20 can enable normal operation of the elevator installation 20 and, for example, enable the vertical displacement of the elevator car 24 in the elevator shaft 22.

[0073] The rest position detectors 84 can, for example, be arranged on the corresponding rest support 74, 76 and / or mechanically coupled thereto. The rest position detectors 84 can, for example, each have a signal receiver that is activated when one of the maintenance platforms 40, 42 is mechanically coupled to the corresponding rest support 74, 76 as intended. The signal receiver can, for example, have a push button, a light barrier, a light sensor, a Hall sensor, or the like.

[0074] Alternatively or in addition to the rest position detector(s) 84, the service arrangement may comprise one or more working position detectors (not shown) arranged and configured such that the working position detectors each generate a working signal when the corresponding maintenance platforms 40, 42 are arranged in the corresponding working positions. The working signal may, for example, be representative of the corresponding maintenance platform 40, 42 being arranged in the corresponding working position. The working signal may be transmitted from the corresponding working position detector 84 to the elevator control of the elevator installation 20. In response to receiving the working signal, the elevator installation 20 may take one or more safety measures, for example, prevent vertical displacement of the elevator car 24 in the elevator shaft 20.The work position detectors 84 can optionally be arranged on the corresponding work supports 48, 50 and / or mechanically coupled thereto. For example, the work position detectors 84 can each have a signal receiver that is activated when the corresponding maintenance platform 40, 42 is mechanically coupled to the corresponding work support 48, 50 as intended. The signal receiver can, for example, have a push button, a light barrier, a light sensor, or the like.

[0075] Optionally, the maintenance platforms 40, 42 themselves can serve as signal transmitters that activate the corresponding signal receiver when they are arranged in their working or rest position, for example, when the corresponding signal receiver has the push button or the light barrier. Alternatively, a dedicated signal transmitter (not shown) can be arranged on each of the corresponding maintenance platforms 40, 42, which is designed to activate the corresponding signal receiver when the corresponding maintenance platform 40, 42 is arranged in its working or rest position. For example, the signal transmitter can be a light source or a magnet if the signal receiver has the light sensor or the Hall sensor.

[0076] Fig. 3 shows a partially sectioned rear view of the service arrangement according to Fig. 1. From Fig. 3, for example, it can be seen that the gap is formed between the two clamp ends 92 of the clamp 90 and the second shaft wall 36. The gap can be designed to be large enough for the support means 28 and / or the counterweight of the elevator system 20 to be movable through the gap.

[0077] Fig. 4 shows a perspective, partially sectioned view of the service assembly according to Fig. 1 in a second state. In the second state shown in Fig. 4, the second maintenance platform 42 is arranged in the second rest position. In particular, the second work platform 42 is held in the second rest position by the second rest mount 76.

[0078] Fig. 5 shows a schematic side view of an exemplary embodiment of the elevator system 20 with the service arrangement according to Figure 1. Figure 5 shows that the two work platforms 40, 42 can be arranged at different heights, so that one or two steps can be formed for the service worker by means of the work platforms 40, 42. It is advantageous if several work platforms are arranged such that either the second work platform 42 is arranged higher than the first work platform 40. This makes the left area of ​​the elevator shaft easier to reach. Alternatively, the first work platform on the right can be arranged higher than the second work platform on the left. This makes the right area of ​​the elevator shaft easier to reach. Depending on where the component to be serviced is located in the shaft, the work platforms can be arranged to suitably suit.

[0079] Fig. 6 shows a schematic side view of an embodiment of the elevator system 20 with the service arrangement according to Figure 1. From Figure 6 it can be seen that the two work platforms 40, 42 can be arranged at the same height, so that a continuous work surface for the service worker can be formed by means of the work platforms 40, 42.

[0080] Fig. 7 shows a flowchart of a method for setting up the service arrangement according to Figure 1. The method serves to set up the service arrangement described above in the elevator shaft 22 of the elevator system 20.

[0081] In a step S2, the first maintenance platform 40 of the service arrangement can be removed from the first rest holder 72 of the service arrangement, by which the first maintenance platform 40 is held in its first rest position, for example by the service worker.

[0082] In a step S4, the first maintenance platform 40 can be arranged on the first work support 48 of the service arrangement, by which the first maintenance platform 40 is held in its first work position, so that the first step surface 44 of the first maintenance platform 40 is aligned horizontally.

[0083] The service worker can then access the first maintenance platform 40. If the service arrangement includes the second or one, two, or more additional maintenance platforms 42, these maintenance platforms 42 can be arranged accordingly, specifically such that one or more steps and / or one or more continuous work surfaces are formed, as explained with reference to Figures 5 and 6. Optionally, the service worker can stand on the first maintenance platform 40 for this purpose.

[0084] Finally, it should be noted that terms such as "having," "comprising," etc., do not exclude other elements or steps, and terms such as "a" or "an" do not exclude a plurality. Furthermore, it should be noted that features or steps 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 are not to be considered as limitations.

Claims

Patent claims 1. A service arrangement for an elevator system (20), comprising: a first maintenance platform (40) which can be arranged in a first rest position and in a first working position in an elevator shaft (22) of the elevator system (20), in which an elevator car (24) of the elevator system (20) can be displaced, and which has a first tread (44) which is designed to support a service worker when the service worker is in the elevator shaft (22) and servicing the elevator system (20); at least one first rest holder (72) which is designed to hold the first maintenance platform (40) in the first rest position such that unrestricted operation of the elevator system (20) is possible;and at least one first work holder (48) which is arranged on a shaft wall (34, 36) of the elevator shaft (22) and which is designed to hold the first maintenance platform (40) in the first working position such that the first tread (44) is aligned horizontally, characterized in that the first work holder (48) is arranged in a vertically extending cross-sectional area of ​​the elevator shaft (22) which the elevator car (24) of the elevator installation (20) at least partially overlaps in its highest service position.; 2. Service arrangement according to one of the preceding claims, wherein the first working support (48) is designed and arranged such that it is arranged between the elevator car (24) and the shaft wall (34, 36) when the elevator car (24) is in its highest normal operating position.

3. Service arrangement according to one of the preceding claims, wherein the first work support (48) has a first work support element (52) and a second work support element (54) which are arranged on opposite shaft walls (34, 36) of the elevator shaft (22).

4. Service arrangement according to claim 3, wherein the first work holding element (52) and the second work holding element (54) are arranged at the same height in the elevator shaft (22).

5. Service arrangement according to one of the preceding claims, wherein the first work holder (48) has a clamp (90) which is fastened at its two clamp ends (92) to the shaft wall (34, 36) and which is spaced from the shaft wall (34, 36) between its two clamp ends (92) in such a way that a gap is formed between the clamp (90) and the shaft wall (34, 36) between its two clamp ends (92), and the clamp (90) is designed in such a way that at least one support means (28) and / or at least one counterweight (94) of the elevator installation (20) can be moved through the gap.

6. Service arrangement according to one of the preceding claims, wherein the first rest bracket (72) is arranged in the elevator shaft (22) above the first work bracket (48), and / or the first rest bracket (72) is fastened to a frame (30) of the elevator system (20) which is located in the elevator shaft (22) and which is designed to hold a drive machine (26) of the elevator system (20) and / or guide rails (32) of the elevator system (20).

7. Service arrangement according to one of the preceding claims, wherein the first rest mount (72) is arranged in a vertically extending region of the elevator shaft (22) which is located between the elevator car (24) and a shaft wall (34, 36) of the elevator shaft (22), in particular when the elevator car (24) is in its highest normal operating position; and / or the first rest mount (72) is designed and arranged such that the first maintenance platform (40) is arranged in a vertically extending region of the elevator shaft (22) between the elevator car (24) and the shaft wall (34, 36) when the first maintenance platform (40) is arranged in the rest position, in particular when the elevator car (24) is in its highest normal operating position.

8. Service arrangement according to one of the preceding claims, wherein the first rest bracket (72) is designed and arranged such that the first tread surface (44) extends in the vertical direction when the first maintenance platform (40) is arranged in the first rest position.

9. Service arrangement according to one of the preceding claims, wherein the first working holder (48) is at least partially designed as a support on which the first maintenance platform (40) rests when the first maintenance platform (40) is arranged in the first working position, and / or the first rest holder (72) is at least partially designed as a suspension in which the first maintenance platform (40) is suspended or in which the first maintenance platform is set when the first maintenance platform (40) is arranged in the first rest position.

10. Service arrangement according to one of the preceding claims, comprising: a rest position detector (84) arranged and configured such that the rest position detector generates a rest signal when the first service platform (40) is arranged in the first rest position.

11. Service arrangement according to one of the preceding claims, comprising: a second maintenance platform (42) which can be arranged in the elevator shaft (22) in a second rest position and in a second working position, and which has a second tread (46) which is designed to support the service worker when the service worker is in the elevator shaft (22) and servicing the elevator installation (20); at least one second rest mount (76) which is designed to hold the second maintenance platform (42) in the second rest position such that unrestricted operation of the elevator installation (20) is possible; and at least one second working mount (50) which is arranged on the shaft wall (34, 36) and which is designed to hold the second maintenance platform (42) in the second working position such that the second tread (46) is aligned horizontally.

12. Service arrangement according to claim 11, wherein the first work support (48) and the second work support (50) are arranged at different heights in the elevator shaft (22).

13. Elevator installation (20), comprising: an elevator car (24) which is vertically displaceable in an elevator shaft (22); and a service arrangement according to one of the preceding claims.

14. A method for setting up a service arrangement according to one of claims 1 to 13 in an elevator shaft (22) of an elevator installation (20), the method comprising: removing a first maintenance platform (40) of the service arrangement from a first rest holder (72) of the service arrangement, by which the first maintenance platform (40) is held in its first rest position; and Arranging the first maintenance platform (40) on a first working support (48) of the service arrangement, which is arranged on a shaft wall of the elevator shaft (22) and by which the first maintenance platform (40) is held in its first working position, so that a first tread surface (44) of the first maintenance platform (40) is aligned horizontally.

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