Cabin roof railing - elevator device

Abstract

A cabin roof railing device for a lift, comprising a cabin roof railing (7) with: a fixed railing element (9) attached to the roof of a cabin (1); and a movable railing element (10) which is provided on the fixed railing element (9) by connecting a mounting shaft (11) in such a way that it is rotatable, wherein the movable railing element (10) is rotatable relative to the fixed railing element (9) in order to be moved between an upright position in which the movable railing element (10) is upright in relation to the fixed railing element (9) and a tilted position in which the movable railing element (10) is tilted in relation to the fixed railing element (9), wherein a stop section (103) is provided on the movable railing element (10), wherein, when the movable railing element (10) assumes the upright position, the stop section (103) is held in the stop against a side surface of the fixed railing element (9) in a position away from the mounting shaft (11). wherein the movable railing element (10) comprises a main body element (111) attached to the mounting shaft (11) and a sliding element (112) attached to the main body element (111) so that it is displaceable, wherein the stop section (103) is provided to the sliding element (112), and wherein the distance between the stop section (103) and the mounting shaft (11) is changed by moving the sliding element (112) relative to the main body element (111).

Description

Technical field

[0001] The present invention relates to a cabin roof railing device for an elevator, which is provided on the top of a cabin. Technical background

[0002] Previously, a cabin roof railing device for an elevator was known which allows a railing mounted on the top of the cabin to be freely inclined towards the inside of the cabin, so that the railing is foldable (see e.g. JP 2007 - 112 573 A).

[0003] JP 2008-110863 A relates to a railing device provided at the edge of a scaffolding area on an elevator car. US 7510056 B2 relates to a roof railing for an elevator car that can be raised and lowered by a handle that operates all sides simultaneously. JP H07-82879 A relates to an attachable work platform that is attached to an external scaffold. CN 103420256 A relates to an elevator car overhead railing device and a method of arrangement thereto, wherein the device can be held in a vertically arranged platform on the upper part of an elevator car. JP 2013-166610 A relates to a railing for an elevator car. Summary of the invention: Technical problem

[0004] However, if, for example, a load is applied to the outside of the cabin and acts on the upper end of the railing, a large torque is generated in the lower end of the railing. Therefore, it is necessary to ensure the rigidity of the railing, which increases its cost.

[0005] The present invention was made to solve the problem described above and aims to provide a cabin roof railing device for an elevator that is able to prevent an increase in costs. Solution to the problem

[0006] The problem is solved according to the invention by the subject matter according to claim 1. Claim 2 relates to a further embodiment and this description explains how the invention can be carried out.

[0007] According to one embodiment of the present invention, a cabin roof railing device for an elevator with a cabin railing is provided, comprising: a fixed railing element that is attached to the roof of a cabin;and a movable railing element which is provided on the fixed railing element by connecting a mounting shaft in such a way that it is rotatable, wherein the movable railing element is rotatable relative to the fixed railing element in order to be moved between an upright position in which the movable railing element is upright with respect to the fixed railing element and a tilted position in which the movable railing element is tilted with respect to the fixed railing element, wherein a stop section is provided on the movable railing element, and wherein, when the movable railing element assumes the upright position, the stop section is held in the stop against a side face of the fixed railing element at a position away from the mounting shaft. Advantageous effects of the invention

[0008] In the cabin roof railing device for an elevator according to the present invention, a load exerted on the movable railing element can be absorbed by the side surface of the fixed railing element at the position separated from the mounting shaft, thereby reducing the torque exerted on the mounting shaft. This allows the stiffnesses of the fixed and movable railing elements to be reduced, thus preventing an increase in the cost of the roof railing. Brief description of the drawings Fig. Figure 1 is a perspective view illustrating a cabin roof railing device for an elevator according to a first embodiment of the present invention. Fig. Figure 2 is a perspective view illustrating the cabin roof railing device when a movable railing element is attached to each of a pair of side railings in Fig. 1 assumes a tilting position. Fig. Figure 3 is a perspective view to illustrate Part III in Fig. 1. Fig. Figure 4 is a front view illustrating a coupling section between a fixed railing element and a movable railing element in Fig. 3. Fig. Figure 5 is an enlarged perspective view to illustrate the coupling section between the fixed railing element and the movable railing element, viewed from the perspective indicated by arrow V. Fig. 3 indicated direction. Fig. Figure 6 is a perspective view to illustrate Part VI in Fig. 2. Fig. Figure 7 is a front view illustrating the coupling section between the fixed railing element and the movable railing element in Fig. 6. Fig. Figure 8 is an enlarged perspective view to illustrate the coupling section between the fixed railing element and the movable railing element in a view indicated by arrow VIII in Fig. 6 indicated direction. Fig. Figure 9 is a perspective view illustrating a main part of the side railing of a cabin roof railing device for an elevator according to a second embodiment of the present invention. Fig. Figure 10 is a longitudinal section view illustrating a coupling section between the fixed railing element and the movable railing element in Fig. 9. Fig. Figure 11 is a perspective view illustrating the coupling section between the fixed railing element and the movable railing element from the viewpoint of arrow XI in Fig. 9. Fig. Figure 12 is a perspective view illustrating a main part of the side railing when the movable railing element is in Fig. 9 assumes the tilting position. Fig. Figure 13 is a longitudinal section view to illustrate the coupling section between the fixed railing element and the movable railing element in Fig. 12. Fig. Figure 14 is a perspective view illustrating the coupling section between the fixed railing element and the movable railing element from the viewpoint of arrow XIV in Fig. 12. Description of the embodiments

[0009] The embodiments of the present invention will now be described with reference to the drawings. First embodiment

[0010] Fig. Figure 1 is a perspective view illustrating a cabin roof railing device for an elevator according to a first embodiment of the present invention. A cabin 1 comprises a cabin body 2 and a cabin frame 3. The cabin frame 3 is configured to support the cabin body 2.

[0011] A cabin door (not shown) is provided in a front face of the cabin body 2. The width direction of the cabin door coincides with the width direction of the cabin body 2. The cabin frame 3 comprises a cabin frame main body 4 and a rectangular upper mounting frame 5. The cabin frame main body 4 encloses the cabin body 2. The upper mounting frame 5 is attached to an upper section of the cabin frame main body 4 and is positioned horizontally above the cabin body 2. Viewed from above, the upper mounting frame 5 surrounds a defined work area that is set into the top of the cabin body 2.

[0012] Cabin 1 is moved up and down within a shaft by a drive force from a hoist (not shown), which is a drive device. The elevator's operation is controlled by a control unit (not shown) installed inside the shaft. Furthermore, the elevator's operation can be switched between normal operation for routine servicing and maintenance mode, which moves cabin 1 at a lower speed than in normal operation.

[0013] For the elevator, an operator sometimes performs maintenance work on devices inside the shaft while remaining on top of the car body 2. A car maintenance control unit (not shown) is provided on top of the car body 2. The operator, while on top of the car body 2, operates the maintenance unit in maintenance mode to move the car 1 at a low speed.

[0014] A cabin roof guardrail device 6, designed to ensure the safety of an operator located on top of the cabin base 2, is provided on the top of the cabin 1. The cabin roof guardrail device 6 is mounted on the upper mounting frame 5 of the cabin 1. Furthermore, the cabin roof guardrail device 6 comprises a pair of side guardrails and a rear guardrail 8 as a plurality of cabin guardrails. The pair of side guardrails 7 is arranged laterally on both sides of the cabin base 2. The rear guardrail 8 is coupled between the pair of side guardrails 7 and is arranged along a rear surface of the cabin base 2.

[0015] Each side railing 7 comprises a fixed railing element 9 and a movable railing element 10. The fixed railing element 9 is attached to the cabin 1, projecting upwards from the cabin 1. The movable railing element 10 is rotatably mounted relative to the fixed railing element 9.

[0016] Each fixed railing element 9 comprises a plurality of fixed railing posts 91 and a plurality of fixed railing supports 92. The plurality of fixed railing posts 91 is attached to the cabin frame 3. The plurality of fixed railing supports 92 is attached to the plurality of fixed railing posts 91. The plurality of fixed railing posts 91 are arranged in a depth direction of the cabin 1 when viewed from above. The plurality of fixed railing supports 92 are arranged along an arrangement direction of the plurality of fixed railing supports 92.

[0017] Each movable railing element 10 comprises a plurality of movable railing posts 101 and a movable railing support 102. The plurality of movable railing posts 101 are rotatably mounted on the fixed railing posts 91. The movable railing support 102 is attached to the plurality of movable railing posts 101. The plurality of movable railing posts 101 are arranged such that they correspond to the positions of the plurality of fixed railing posts 91 in the depth direction of the cabin 1. The movable railing support 102 is arranged along one of the orientation directions of the plurality of movable railing posts 101.

[0018] Each movable railing element 10 is rotated relative to the fixed railing element 9 to be shifted between an upright position, in which the movable railing element 10 is upright with respect to the fixed railing element 9, and a tilting position, in which the movable railing element 10 is inclined towards an inside of the cabin 2 with respect to the fixed railing element 9.

[0019] Fig. Figure 2 is a perspective view to illustrate the cabin roof railing device 6 when the movable railing element 10 is positioned against each of the two side railings 7. Fig. 1 assumes the tilting position. Fig. Figure 1 is a representation of the cabin roof railing device 6 when the movable railing element 10 of each of the two side railings 7 assumes the upright position. As in Fig. As shown in Figure 2, each movable railing element 10 is arranged horizontally when in the tilted position. As in Fig. As shown in Figure 1, each movable railing element 10 is arranged vertically in the upright position. When each movable railing element 10 assumes the tilted position, each movable railing element 10 is arranged in the width direction within the area of ​​the cabin base 2.

[0020] Fig. Figure 3 is a perspective view to illustrate Part III in Fig. 1. Furthermore, Fig. 4 a front view to illustrate a coupling section between the fixed railing element 9 and the movable railing element 10 in Fig. 3. Furthermore, Fig. 5 An enlarged perspective view to illustrate the coupling section between the fixed railing element 9 and the movable railing element 10 in a view indicated by the arrow V in Fig. 3 indicated direction. Fig. Figure 6 is a perspective view to illustrate Part VI in Fig. 2. Furthermore, Fig. 7 a front view to illustrate the coupling section between the fixed railing element 9 and the movable railing element 10 in Fig. 6. Furthermore, Fig. 8 An enlarged perspective view to illustrate the coupling section between the fixed railing element 9 and the movable railing element 10 in a view indicated by arrow VIII in Fig. 6 indicated direction.

[0021] A mounting bracket 93 is attached to an upper end section of each fixed railing post 91 of the fixed railing element 9. A mounting shaft 11, extending along the depth direction of the cabin 1, is mounted to each mounting bracket 93. The movable railing elements 10 are rotatably mounted to the upper end sections of the fixed railing elements 9 by means of the multiple mounting shafts 11.

[0022] The movable railing post 101 is mounted on each mounting shaft 11. Each movable railing post 101 comprises a first end section 101a and a second end section 101b. In each movable railing post 101, the mounting shaft 11 is mounted on an intermediate section located between the first end section 101a and the second end section 101b. In each movable railing post 101, the distance from the mounting shaft 11 to the first end section 101a is greater than the distance from the mounting shaft 11 to the second end section 101b.

[0023] When the movable railing element 10 assumes the upright position, as shown in Fig. As shown in Figure 3, each movable railing post 101 is arranged in a state in which the first end section 101a is on top with respect to the second end section 101b. When the movable railing element 10 assumes the tilting position, as shown in Figure 3, each movable railing post 101 is arranged in a state in which the first end section 101a is on top with respect to the second end section 101b. Fig. As shown in Figure 6, each movable railing post 101 is arranged in a state in which the first end section 101a is located on the inside of the cabin 1 in the lateral direction relative to the second end section 101b. When each movable railing element 10 assumes the upright position, the first end section 101a is positioned on the top side relative to the mounting shaft 11, and the second end section 101b is positioned on the bottom side relative to the mounting shaft 11. Furthermore, when each movable railing element 10 assumes the tilted position, the first end section 101a is positioned on the inside of the cabin 1 in the lateral direction relative to the mounting shaft 11, and the second end section 101b is positioned on the outside of the cabin 1 in the lateral direction relative to the mounting shaft 11.

[0024] A stop metal 103 with a plate-shaped form and a stop element section is attached to the second end section 101b of each movable railing post 101. By moving the movable railing element 10 from the tilted position to the upright position, the stop metal 103 approaches the fixed railing post 91. By moving the movable railing element 10 from the upright to the tilted position, the stop metal 103 is separated from the fixed railing post 91. When the movable railing element 10 assumes the upright position, the stop metal 103 projects out to a side of the movable railing post 101, so that the stop metal 103 projects from the movable railing post 101 to the fixed railing post 91.When the movable railing element 10 is moved from the tilted position to the upright position, the stop metal 103 is brought into contact with the side face of the fixed railing post 91 at the position separated from the mounting shaft 11, in order to prevent displacement of the movable railing element 10. When the movable railing element 10 assumes the upright position, the side face of each fixed railing post 91 receives each stop metal 103 at the position separated from the mounting shaft 11, while each movable railing post 101 is separated from each fixed railing post 91.

[0025] As in Fig. 1 and Fig. As shown in Figure 2, the rear railing 8 comprises a fixed connecting beam 81 and a movable connecting member 82. The fixed connecting beam 81 is coupled between the fixed railing elements 9 of the side railing pair 7. In each side railing 7, the fixed connecting beam 81 is attached to the fixed railing post 91, which is located on the rear of the cabin base 2. The movable connecting beam 82 is rotatably mounted on one movable railing element 10 of the side railing pair 7 and detachably mounted on another movable railing element 10 of the same side railing pair 7. When the movable railing element 10 of each of the two side railings 7 is moved into its upright position by rotating the movable connecting beam 82 relative to one of the movable railing elements 10, the movable connecting beam 82 can be mounted on the other movable railing element 10.When the movable coupling beam 82 is mounted on the other movable railing element 10, the movable coupling beam 82 is coupled between the movable railing elements 10.

[0026] A detection switch (not shown) is provided for the other movable railing element 10. The detection switch is configured to detect whether the movable coupling beam 82 is mounted on the other movable railing element 10. When the movable coupling beam 82 is detected, the detection switch sends a detection signal to the controller. While the controller is receiving a detection signal from the detection switch, the movement of cabin 1 is enabled by the controller in accordance with the operation of the rooftop maintenance unit. When the output of the detection signal from the detection switch to the controller stops, the controller stops cabin 1 moving, even when the rooftop maintenance unit is operating.

[0027] In each side railing 7, the movable railing element 10 is supported by the fixed railing supports 92 in such a way that the movable railing element 10 is held in the tilting position, and the movable coupling beam 82 is coupled between the movable railing elements 10 of the side railing pair 7 in such a way that the movable railing element 10 is held in the upright position.

[0028] The cabin roof railing device 6 is moved into an assembled state when the movable railing element 10 of each side railing 7 reaches the upright position, so that the movable coupling beam 82 is coupled between the movable railing elements 10. The cabin roof railing device 6 is moved into a folded state when the movable coupling beam 82 is released from the other movable railing element 10, so that the movable railing element 10 of each side railing 7 reaches the tilted position. The height of the cabin roof railing device 6 in the assembled state is greater than the height of the cabin roof railing device 6 in the folded state.

[0029] Next, a maintenance inspection procedure for the elevator is described. A service operation of the elevator is performed during normal operation. When the elevator is operating normally, the cabin roof railing device 6 is held in the folded position. At this time, the movable railing element 10 of each side railing 7 is held in the tilted position, and the movable coupling carrier 82 is released from the other movable railing element 10, which is held by the other movable railing element 10.

[0030] If the operator is located on top of the cabin base 2 to perform a maintenance inspection, for example, a control panel on the landing above is operated to switch the elevator's operating mode from normal operation to maintenance mode. Afterwards, the cabin 1 is stopped so that the top of the cabin base 2 is at the same height as the landing floor, and a shaft door above is opened.

[0031] The operator then lifts each movable railing element 10 from the platform on the upper floor to move each movable railing element 10 from the tilted position to the upright position. At this point, each stop metal 103 is brought into contact with the side face of each fixed railing post 91 at the position separated from the mounting shaft 11 to prevent each movable railing element 10 from tilting towards the outside of the cabin 1 in the lateral direction. The operator then moves to the top of the cabin base 2 and rotates the movable coupling bar 82 from one movable railing element 10 to the other, securing the movable coupling bar 82 to the other movable railing element 10. This couples the movable coupling bar 82 between the movable railing elements 10, thus bringing the cabin roof railing assembly 6 into the assembled state.Furthermore, the recognition signal is output from the recognition switch to the control unit, so that the movement of cabin 1 is enabled by the operation of the on-roof maintenance operating unit.

[0032] After the operator closes the open shaft door, he uses the maintenance control unit on the roof to move cabin 1 at a slow speed. This allows maintenance work to be carried out on the equipment in the shaft.

[0033] After completing the maintenance inspection of the devices inside the shaft, the operator, located on top of the cabin base 2, moves the cabin 1 downwards at low speed while the rooftop maintenance unit is running, and stops the cabin 1 so that the top of the cabin base 2 is at the same height as, for example, the floor of the platform on the upper level. The operator then disconnects the movable coupling beam 82 from the other movable guardrail element 10 and rotates the movable coupling beam 82 so that it is held by the other movable guardrail element 10. The operator then opens the shaft door on the upper level to access the platform from the top of the cabin base 2.

[0034] The operator then moves each movable railing element 10 from the upright to the tilting position from the platform on the top floor. This brings the cabin roof railing device 6 into the folded position. The shaft door is then closed, thus concluding the maintenance inspection for the elevator.

[0035] In the cabin roof railing device 6 for a lift described above, the stop metals 103 are provided in the movable railing element 10. When the movable railing element 10 assumes the upright position, the stop metal 103 is held in a stop against the side face of the fixed railing element 9 at the position separated from the mounting shaft 11. Thus, if a load acts in a direction opposite to the direction in which the movable railing element 10 is moved into the tilting position, i.e., if a load on the outside of the cabin 1 acts on the movable railing element 10, the load exerted on the movable railing element 10 can be absorbed by the side face of the fixed railing element 9 at the position separated from the mounting shaft 11, thereby reducing the torque exerted on the mounting shaft 11.This allows the stiffnesses of the fixed railing element 9 and the movable railing element 10 to be reduced, thus preventing an increase in the cost of each side railing 7.

[0036] In the example above, the movable coupling beam 82 of the rear railing 8 is rotatably mounted on one movable railing element 10 and detachably mounted on the other movable railing element 10. However, the movable coupling beam 82 of the rear railing 8 can be detachably attached to either of the two movable railing elements 10. Second embodiment

[0037] Fig. Figure 9 is a perspective view illustrating a main part of the side railing of a cabin roof railing device for an elevator according to a second embodiment of the present invention. Furthermore, Fig. 10 a longitudinal section view to illustrate a coupling section between the fixed railing element 9 and the movable railing element 10 in Fig. 9. Furthermore, Fig. 11 A perspective view to illustrate the coupling section between the fixed railing element 9 and the movable railing element 10 from the viewpoint of arrow XI in Fig. 9. Fig. Figure 12 is a perspective view illustrating a main part of the side railing 7 when the movable railing element 10 is in Fig. 9 assumes the tilting position. Furthermore, Fig. 13 a longitudinal section view to illustrate the coupling section between the fixed railing element 9 and the movable railing element 10 in Fig. 12. Furthermore, Fig. 14 a perspective view to illustrate the coupling section between the fixed railing element 9 and the movable railing element 10 from the viewpoint of arrow XIV in Fig. 12.

[0038] Each movable railing post 101 of each movable railing element 10 comprises a main body element 111 and a sliding element 112. The main body element 111 is rotatably mounted on the mounting shaft 11. The sliding element 112 is slidably arranged relative to the main body element 111. By sliding the sliding element 112 relative to the main body element 111, each movable railing post 101 is extended and retracted in the longitudinal direction of the movable railing post 101. The first end section 101a of the movable railing post 101 is an end section of the main body element 111, and the second end section 101b of the movable railing post 101 is an end section of the sliding element 112.

[0039] The main body element 111 and the sliding element 112 are each angled elements with a U-shaped cross-section. Slotted holes 113, extending along the longitudinal direction of the movable railing post 101, are formed in a pair of side walls of the main body element 111, each with a U-shaped cross-section. Two sliding shafts 114, which slide through the slotted holes 113 of the main body element 111, are attached to the sliding element 112. The two sliding shafts 114 are arranged so that they are separated from each other in one direction along the slotted hole 113. The sliding element 112 is displaceable along the slotted holes 113 relative to the main body element 111 and guides the two sliding shafts 114 along the slotted holes 113.

[0040] An opening section 115 is formed in a base wall of the main body element 111 with a U-shaped cross-section. By moving the movable railing element 10 from the upright to the tiltable position, an upper end section of the fixed railing post 9 is inserted into the opening section 115 as an insertion section 91a. The movable railing element 10 is thus positioned as shown in Fig. 12 to Fig. Figure 14 shows the movable railing element 10 held in the tilted position in a state where the insertion section 91a, which is the upper end section of the fixed railing post 91, passes through the opening section 115. When the movable railing element 10 is moved from the tilted position to the upright position, as shown in Figure 14, the opening section 115 passes through the opening section 115. Fig. 9 to Fig. As shown in Figure 11, the introduction section 91a of the fixed railing column 91 is removed from the opening section 115.

[0041] The stop metal 103, which is the stop section, is attached to the second end section 101b, which is the end section of the sliding element 112. Similar to the first embodiment, the stop metal 103 projects outwards towards the side of the movable railing post 101. Thus, when the movable railing element 10 is moved from the tilted position to the upright position, the stop metal 103 is brought into contact with the side face of the fixed railing post 91 to prevent displacement of the movable railing element 10. Furthermore, when the movable railing element 10 assumes the upright position, the side face of each fixed railing post 91 receives each stop metal 103 at the position separated from the mounting shaft 11, while each movable railing post 101 is separated from each fixed railing post 91.

[0042] Furthermore, the distance between the stop metal 103 and the mounting shaft 11 is changed by moving the sliding element 112 relative to the main body element 111. That is, moving the sliding element 112 relative to the main body element 111 reduces the distance between the stop metal 103 and the mounting shaft 11 in a direction where the movable railing post 101 is retracted. Moving the sliding element 112 relative to the main body element 111 increases the distance between the stop metal 103 and the mounting shaft 11 in a direction where the movable railing post 101 is extended. The stop metal 103 also acts as a stop, configured to regulate the sliding of the sliding element 112 in a direction where it approaches the mounting shaft 11 by abutting the main body element 111.

[0043] The main body element 111 and the sliding element 112 are connected to each other by means of a wire 116, which is a cord-like element. A stop shaft 117 and an intermediate shaft 118 are attached to the inside of the main body element 111. The stop shaft 117 is attached at a position further away from the mounting shaft 11 than a position of the opening section 115. The intermediate shaft 118 is attached at a position between the first stop shaft 117 and the opening section 115. One end section of the wire 116 is connected to the stop shaft 117, and another end section of the wire 116 is connected to the sliding shaft 114 of the sliding element 112.

[0044] The wire 116 runs through the inner surfaces of the main body element 111 and the sliding element 112. When the movable railing element 10 is moved from the upright to the tilting position, the insert section 91a of the fixed railing post 91 is inserted through the opening section 115 on the inner surface of the main body element 111, so that the wire 116 is hooked onto the insert section 91a. A groove 119, configured to allow the wire 116 to be mounted in it when the wire 116 is hooked onto the insertion section 91a, is formed in an end face of the insertion section 91a of the fixed railing post 91.

[0045] When the movable railing element 10 assumes the upright position, as shown in Fig. 10 and Fig.As shown in Figure 11, the sliding element 112 is suspended by its own weight from the main body element 111 by the wire 116, and the movable railing post 101 is held in an extended position. When the movable railing element 10 assumes the upright position, the distance between the stop metal 103 and the mounting shaft 11 is thus an extension value L1.

[0046] If, on the other hand, the movable railing element 10 is moved from the upright to the tilting position, the wire 116 is hooked onto the insert section 91a for bending, so that the sliding element 112 is pulled by the wire 116 in the direction in which the stop metal 103 of the mounting shaft 11 approaches. If, in this process, the movable railing element 10 is moved from the upright to the tilting position while the sliding element 21 is pulled by the wire 116, the sliding element 112 slides relative to the main body element 111 in the direction in which the stop metal 103 of the mounting shaft 11 approaches. When the movable railing element 10 assumes the tilting position, the wire 116 is bent in the state of sequential suspension on the intermediate shaft 118, the insert section 91a and the mounting shaft 11, and the movable railing post 101 is held in a retracted state.Therefore, when the movable railing element 10 assumes the tilted position, the distance between the stop metal 103 and the mounting shaft 11 is a contraction value L2, which is smaller than the expansion value L1 when the movable railing element 10 assumes the upright position. Other configurations are the same as in the first embodiment.

[0047] The following describes an operation to be performed at the time of movement of the movable railing element 10. When the movable railing element 10 assumes the upright position, the sliding element 112 is suspended by its own weight from the main body element 111 by the wire 116, and the stop metal 103 is held in a stop against the side surface of the fixed railing post 91 in a state in which the distance between the stop metal 103 and the mounting shaft 11 is the expansion value L1.

[0048] When the movable railing element 10 is moved from the upright position to the tilted position, the upper end section of the fixed railing post 91 is inserted into the inside of the main body element 111 through the opening section 115 as the insertion section 91a, and the wire 116 is hooked onto the insertion section 91a in such a way that the wire 116 is inserted into the groove 119. In doing so, the wire 116 is bent and the sliding element 112 is drawn through the wire 116, so that the sliding element 112 automatically slides relative to the main body element 111 in the direction in which the stop metal 103 of the mounting shaft 11 approaches. This means that when the movable railing element 10 is moved into the tilted position, the movable railing post 101 is automatically retracted and any projection of the movable railing post 101 to the outside of the fixed railing element 9 is automatically reduced.This makes the distance between the stop metal 103 and the mounting shaft 11 the contraction value L2, which is smaller than the expansion value L1.

[0049] When the movable railing element 10 is moved from the tilted position back to the upright position, the insert section 91a of the fixed railing post 91 is removed from the main body element 111 and the sliding element 112 is positioned on its underside relative to the mounting shaft 11. The sliding element 112 then slides relative to the main body element 111 by its own weight, and automatically returns to a state in which it is suspended from the wire 116.

[0050] In the cabin roof railing device 6 for an elevator described above, the movable railing element 10 comprises the main body element 111 and the sliding element 112. The sliding element 112 is slidably arranged relative to the main body element 111. The stop metal 103 is provided on the sliding element 112. Therefore, by moving the sliding element 112 relative to the main body element 111, the distance between the stop metal 103 and the mounting shaft 11 can be changed. Thus, when the movable railing element 10 is in its upright position, the torque exerted on the mounting shaft 11 can be further reduced by increasing the distance between the stop metal 103 and the mounting shaft 11.Furthermore, when the movable railing element 10 assumes the tilting position, the projection of the movable railing post 101 to the outside from the fixed railing element 9 can be reduced by decreasing the distance between the stop metal 103 and the mounting shaft 11, so that the movable railing post 101 can be made less susceptible to interference from devices inside the shaft.

[0051] Furthermore, the main body element 111 and the sliding element 112 are connected to each other by the wire 116. Thus, when the movable railing element 10 is moved into the tilting position, the wire 116 is hooked onto the fixed railing post 91 for bending, allowing the sliding element 112 to be moved closer to the mounting shaft 11. This automatically reduces the projection of the movable railing post 101 outwards from the fixed railing element 9, thereby relieving the operator moving the sliding element 112.

[0052] In the example above, the wire 116 is used as a cable-like element to connect the main body element 111 and the sliding element 112. However, the present invention is not limited to this, and, for example, a strap, a rope, or a chain can be used as the strap-like element.

[0053] Furthermore, in the example above, the main body element 111 and the sliding element 112 are connected by the wire 116, although the wire 116 can be omitted. In this case, when the movable railing element 10 is moved into the tilting position, the operator manually moves the sliding element 112 relative to the main body element 111 to retract the movable railing post 101. Furthermore, in this case, when the movable railing element 10 is moved into the upright position, the sliding element 112 is displaced relative to the main body element 111 by its own weight, so that the movable railing post 101 is automatically extended.

[0054] Furthermore, in each of the embodiments mentioned above, the stop metal 103, which is the stop section, is attached to the second end section 101b of the movable railing post 101. However, the present invention is not limited to this, and the stop metal 103 can be attached to the movable railing post 101 at a position closer to the mounting shaft 11 than the second end section 101b.

Claims

[1] A cabin roof railing device for a lift, comprising a cabin roof railing (7) with: a fixed railing element (9) attached to the roof of a cabin (1); and a movable railing element (10) which is provided on the fixed railing element (9) by connecting a mounting shaft (11) in such a way that it is rotatable, wherein the movable railing element (10) is rotatable relative to the fixed railing element (9) in order to be moved between an upright position in which the movable railing element (10) is upright in relation to the fixed railing element (9) and a tilted position in which the movable railing element (10) is tilted in relation to the fixed railing element (9), wherein a stop section (103) is provided on the movable railing element (10), wherein, when the movable railing element (10) assumes the upright position, the stop section (103) is held in the stop against a side surface of the fixed railing element (9) in a position away from the mounting shaft (11). wherein the movable railing element (10) comprises a main body element (111) attached to the mounting shaft (11) and a sliding element (112) attached to the main body element (111) so that it is displaceable, wherein the stop section (103) is provided to the sliding element (112), and wherein the distance between the stop section (103) and the mounting shaft (11) is changed by moving the sliding element (112) relative to the main body element (111). [2] The cabin roof railing device for a lift according to claim 1, wherein the main body element (111) and the sliding element (112) are connected to each other by a belt-like element (116), wherein, when the movable railing element (10) assumes the upright position, the sliding element (112) is suspended by its own weight from the main body element (111) by the strap-like element (116), wherein, when the movable railing element (10) is moved from the upright position to the tilted position, the strap-like element (116) is hooked onto the fixed railing element (9) for bending, so that the sliding element (112) slides relative to the main body element (111) in a direction in which the stop metal (103) approaches the mounting shaft (11).

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