Operation assisting device for an elevator

Abstract

In a work assisting device of an elevator, a car supporting structure is disposed between a bottom of a shaft and a car in a height direction of the shaft. A cable strip body is connected to the car supporting structure and connected to a landing sill. A state of the car supporting structure is changeable between a sill reaching state in which the car supporting structure reaches the landing sill from a support, and a retreat state in which the car supporting structure is detached from the landing sill. When the shaft is viewed from above, a part of the car supporting structure overlaps with a region of the car by making the state of the car supporting structure the sill reaching state, and the car supporting structure is detached from the region of the car by making the state of the car supporting structure the retreat state.

Description

Technical Field

[0001] This disclosure relates to an auxiliary device for elevator operation installed in a shaft. Background Technology

[0002] Previously, elevators were known to have supports installed at the bottom of the shaft to ensure working space for operators at the bottom of the shaft. The supports lie horizontally at the bottom of the shaft during normal elevator operation. Furthermore, the supports are erected at the bottom of the shaft by operators during elevator maintenance. With the supports erected at the bottom of the shaft, if the car moves to a position below the lowest floor, the car comes into contact with the supports, thereby preventing further downward movement of the car (see, for example, Patent Document 1).

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: International Publication No. 99 / 47447 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] However, in the existing elevator shown in Patent Document 1, during elevator maintenance, the operator needs to enter the bottom of the shaft to erect the support pillars. Therefore, the workload of the operator at the bottom of the shaft increases.

[0008] This disclosure was made to solve the aforementioned problems, and its purpose is to provide an elevator operation assistance device that can reduce the workload of operators at the bottom of the shaft.

[0009] Methods for solving problems

[0010] The elevator operation auxiliary device disclosed herein includes: a support member fixed within a shaft for car movement; a car support structure supported by the support member and disposed between the bottom of the shaft and the car in the height direction of the shaft; and a cable body connected to the car support structure and connected to the landing sill. When the shaft is viewed from above, the support member is fixed at a position detached from the area of ​​the car. The state of the car support structure can change between a sill arrival state (the car support structure reaches the landing sill from the support member) and a retraction state (the car support structure detaches from the landing sill). When the shaft is viewed from above, by making the state of the car support structure the sill arrival state, a portion of the car support structure overlaps with the area of ​​the car. By making the state of the car support structure the retraction state, the car support structure detaches from the area of ​​the car.

[0011] Invention Effects

[0012] The elevator operation assistance device disclosed herein can reduce the workload of operators at the bottom of the shaft. Attached Figure Description

[0013] Figure 1 This is a side view showing the elevator of Embodiment 1.

[0014] Figure 2 It is shown Figure 1 An enlarged view of the bottom of the shaft.

[0015] Figure 3 It is along Figure 2 A cross-sectional view along line III-III.

[0016] Figure 4 It is shown Figure 2 An enlarged view of the work assistance device.

[0017] Figure 5 It is shown Figure 4 The diagram shows the working auxiliary device in the state of the car support structure in the retraction state.

[0018] Figure 6 This is a side view showing the work assistance device of Embodiment 2.

[0019] Figure 7 This is an enlarged view showing the car support structure of the operation assistance device of Embodiment 3 being fixed to the landing sill.

[0020] Figure 8 This is an enlarged view showing the car support structure of the operation assistance device of Embodiment 4 being fixed to the landing sill.

[0021] Figure 9 This is a top view showing the work assistance device of Embodiment 5.

[0022] Figure 10 It is shown Figure 9 A top view of the car support structure protruding into the sill groove of the landing sill.

[0023] Figure 11 This is a side view showing the work assistance device of Embodiment 6.

[0024] Figure 12 It is along Figure 11 A cross-sectional view along line XII-XII.

[0025] Figure 13 It is shown Figure 12 The car support structure is shown in the cross-sectional view of each operating auxiliary device in the retracted state. Detailed Implementation

[0026] The embodiments will now be described with reference to the accompanying drawings.

[0027] Implementation method 1.

[0028] Figure 1 This is a side view showing the elevator of Embodiment 1. Figure 2 It is shown Figure 1 An enlarged view of the bottom of the shaft. Figure 3 It is along Figure 2 The figure shows a cross-sectional view along line III-III. In the figure, a car 2 and a counterweight 3 are installed within the hoistway 1. The car 2 and counterweight 3 are capable of moving along the height of the hoistway 1. A traction machine 4 is installed at the upper part of the hoistway 1. The traction machine 4 generates a driving force that moves the car 2 and counterweight 3.

[0029] The traction machine 4 has a drive sheave 41. Multiple main ropes 5, serving as suspension elements, are wound around the drive sheave 41. The car 2 and counterweight 3 are suspended within the hoistway 1 by means of the main ropes 5. The car 2 and counterweight 3 move along the height direction of the hoistway 1 within the hoistway 1 by the rotation of the drive sheave 41. Furthermore, in Figure 1 In the diagram, multiple main ropes 5 are shown as a single main rope 5. Alternatively, a strap instead of ropes can be used as the suspension element.

[0030] Each floor of the building has a landing entrance / exit 21. The hoistway 1 opens to the landing at each floor through the landing entrance / exit 21. Here, the left-right direction when viewing the hoistway 1 from the landing is defined as the width direction of the hoistway 1. Furthermore, the direction perpendicular to both the width and vertical directions of the hoistway 1 is defined as the depth direction of the hoistway 1. Therefore, the frontal width direction of the landing entrance / exit 21 at each floor is consistent with the width direction of the hoistway 1.

[0031] At the lower part of each floor's entrance / exit 21, a landing sill 23 is provided along the width of the front of the entrance / exit 21. The landing sill 23 is fixed to the floor of each floor. Figure 2 and Figure 3 As shown, a sill groove 24 is provided on the upper surface of the landing sill 23 along the front width direction of the landing entrance 21. The lower ends of a pair of landing doors 22 are inserted into the sill groove 24. At each floor, the landing entrance 21 is opened and closed by moving the pair of landing doors 22 along the front width direction of the landing entrance 21.

[0032] like Figure 3 As shown, a pair of car guide rails 6 and a pair of counterweight guide rails 7 are provided in the hoistway 1. The pair of car guide rails 6 are opposite each other in the width direction of the hoistway 1. The car 2 is disposed between the pair of car guide rails 6. The pair of counterweight guide rails 7 are opposite each other in the width direction of the hoistway 1. The counterweight 3 is disposed between the pair of counterweight guide rails 7.

[0033] When viewed from above, the car 2 is positioned closer to the landing entrance / exit 21 than the counterweight 3. Therefore, a pair of car guide rails 6 are positioned closer to the landing entrance / exit 21 than a pair of counterweight guide rails 7. As the car 2 and counterweight 3 move within the hoistway 1, the car 2 is guided by the pair of car guide rails 6, and the counterweight 3 is guided by the pair of counterweight guide rails 7.

[0034] An elevator device (not shown) is installed at the bottom of the hoistway 1. Examples of such elevator device include a car buffer and a counterweight buffer. When an operator performs maintenance work on the elevator device located at the bottom of the hoistway 1, an elevator work assistance device 8 is used to ensure sufficient working space for the operator at the bottom of the hoistway 1. The work assistance device 8 prevents the car 2 from encroaching on the bottom of the hoistway 1. The bottom of the hoistway 1 is the space within the hoistway 1 that exists below the lower end of the car 2 when it is stopped at the lowest floor.

[0035] A pair of work assistance devices 8 are provided inside the hoistway 1. The pair of work assistance devices 8 are respectively positioned between the bottom of the hoistway 1 and the car 2 in the vertical direction of the hoistway 1. In this embodiment, one of the work assistance devices 8 is mounted on one car guide rail 6, and the other work assistance device 8 is mounted on the other car guide rail 6. The structure of one work assistance device 8 is the same as the structure of the other work assistance device 8. Therefore, only the structure of one work assistance device 8 will be described.

[0036] The operation assistance device 8 has a car support structure 9, a support component 10, and a cable body 11.

[0037] The support member 10 is fixed inside the hoistway 1. In this embodiment, the support member 10 is fixed to the car guide rail 6. Furthermore, when viewing the hoistway 1 from above, as... Figure 3 As shown, the support member 10 is fixed in a position detached from the respective areas of the car 2 and the counterweight 3. The support member 10 has a fixed plate 101 and an inclined plate 102.

[0038] The fixing plate 101 overlaps with the back of the car guide rail 6. Thus, the fixing plate 101 is arranged perpendicular to the width direction of the hoistway 1. Furthermore, the fixing plate 101 is detachably fixed to the car guide rail 6 using rail clamps (not shown).

[0039] The inclined plate 102 is fixed to the end of the fixed plate 101. Furthermore, the inclined plate 102 is inclined relative to the fixed plate 101. The fixed plate 101 is fixed within the shaft 1 with the end to which the inclined plate 102 is fixed facing the landing entrance / exit 21. When viewed from above, the inclined plate 102 protrudes from the end of the fixed plate 101 in a direction toward the landing entrance / exit 21, closer to the center of the width direction of the shaft 1.

[0040] The car support structure 9 is supported by the support member 10. Furthermore, the car support structure 9 is positioned between the bottom of the hoistway 1 and the car 2 in the height direction of the hoistway 1. In this embodiment, the car support structure 9 is positioned at a height corresponding to the ground level of the lowest floor.

[0041] The car support structure 9 is a telescopic elongated component. Furthermore, the car support structure 9 has multiple first connecting parts 91 and multiple second connecting parts 92. The multiple first connecting parts 91 and multiple second connecting parts 92 are multiple connecting parts connected in series. That is, the car support structure 9 is a connecting body of multiple first connecting parts 91 and multiple second connecting parts 92 connected in series. In the car support structure 9, the first connecting parts 91 and the second connecting parts 92 are alternately connected in series.

[0042] The first connecting component 91 and the second connecting component 92, which are two adjacent connecting components, are connected to each other by a connecting shaft 93. The connecting shaft 93 connects the ends of the first connecting component 91 and the second connecting component 92 in the longitudinal direction. The first connecting component 91 and the second connecting component 92, which are two adjacent connecting components, are rotatable about the connecting shaft 93. The connecting shaft 93 is perpendicular to the longitudinal direction of the first connecting component 91 and the second connecting component 92. Here, the direction along the connecting shaft 93 is taken as the width direction of the car support structure 9. In this embodiment, the car support structure 9 is supported on the support member 10 with the width direction of the car support structure 9 horizontal.

[0043] Each first connecting member 91 is a rod-shaped member. Each second connecting member 92 has a pair of connecting plates 921. The pair of connecting plates 921 are opposite each other in the width direction of the car support structure 9.

[0044] At the connection between the first connecting member 91 and the second connecting member 92, the first connecting member 91 is inserted between a pair of connecting plates 921. Furthermore, at the connection between the first connecting member 91 and the second connecting member 92, a connecting shaft 93 passes through the first connecting member 92 and the pair of connecting plates 921.

[0045] One end of the car support structure 9 is the sill-side end. The other end of the car support structure 9 is the opposite sill-side end. The sill-side end of the car support structure 9 is positioned closer to the landing sill 23 than the opposite sill-side end of the car support structure 9. The opposite sill-side end of the car support structure 9 is mounted to the support member 10. In this embodiment, the connecting member forming the sill-side end of the car support structure 9 is a first connecting member 91. Furthermore, in this embodiment, the connecting member forming the opposite sill-side end of the car support structure 9 is a second connecting member 92.

[0046] The opposite end of the car support structure 9 is mounted to the inclined plate 102 via a support shaft 12. The support shaft 12 is perpendicular to the inclined plate 102. Furthermore, the support shaft 12 is horizontally positioned. The car support structure 9 is capable of rotating about the support shaft 12 relative to the support member 10. Each connecting shaft 93 of the car support structure 9 is parallel to the support shaft 12.

[0047] The state of the car support structure 9 can change between the sill arrival state and the retraction state. Furthermore, in Figure 2 and 3 The image shows a pair of work assistance devices 8 when the car support structure 9 is in the sill arrival state.

[0048] When the car support structure 9 is in the sill arrival state, it reaches the landing sill 23 from the support member 10. Specifically, when the car support structure 9 is in the sill arrival state, its sill-side end reaches the lowest landing sill 23 at a position closer to the center of the hoistway 1 than the sill-side end of the car support structure 9 in the width direction. Therefore, when the car support structure 9 is in the sill arrival state, when the hoistway 1 is viewed from above, the car support structure 9 is inclined relative to both the width and depth directions of the hoistway 1. Furthermore, when the hoistway 1 is viewed from above, in the work assistance device 8, such as... Figure 3 As shown, the state of the car support structure 9 is the sill arrival state, so a part of the car support structure 9 overlaps with the area of ​​the car 2.

[0049] When the car support structure 9 is in the retracted state, it detaches from the landing sill 23. When observing the hoistway 1 from above, the car support structure 9 is in the retracted state in the operation auxiliary device 8, thus the car support structure 9 detaches from the area of ​​the car 2.

[0050] Figure 4 It is shown Figure 2 An enlarged view of the work assistance device 8. Figure 5 It is shown Figure 4The car support structure 9 is shown in an enlarged view of the work assistance device 8 in the retraction state. (See diagram below.) Figure 4 As shown, the state of the car support structure 9 is such that its extension results in the sill arrival state. Furthermore, as... Figure 5 As shown, the state of the car support structure 9 is changed to a retracted state by the contraction of the car support structure 9.

[0051] Here, let the angle between two straight lines extending along the length directions of the first connecting member 91 and the second connecting member 92, which are adjacent connecting members, be defined as the angle between the connecting members. At this time, the car support structure 9 unfolds by rotating the first connecting member 91 and the second connecting member 92 towards each other in a direction close to 180° between the connecting members. Figure 4 As shown, when the car support structure 9 is deployed, multiple first connecting parts 91 and multiple second connecting parts 92 are arranged in a straight line, and the car support structure 9 extends.

[0052] The car support structure 9 folds by rotating relative to each other in the direction where the angle between the connecting parts decreases, via the first connecting part 91 and the second connecting part 92. For example... Figure 5 As shown, when the car support structure 9 is folded, the connection between the first connecting part 91 and the second connecting part 92 bends and the car support structure 9 contracts.

[0053] A protrusion 94 is provided on the first connecting member 91 at the sill-side end of the car support structure 9. The protrusion 94 protrudes from the first connecting member 91 in a direction perpendicular to both the length direction of the first connecting member 91 and the width direction of the car support structure 9. When the car support structure 9 is in the sill arrival state, the protrusion 94 protrudes downward from the first connecting member 91. Furthermore, when the car support structure 9 is in the sill arrival state, the protrusion 94 is embedded in the sill groove 24 of the lowest landing sill 23. Thus, the car support structure 9 is fixed to the landing sill 23.

[0054] The cable body 11 is connected to the car support structure 9. In this embodiment, the cable body 11 is connected to the first connecting member 91 forming the sill side end of the car support structure 9. Furthermore, the cable body 11 is also connected to the lowest landing sill 23. The cable body 11 hangs down from the car support structure 9 to the landing sill 23. In each of the pair of operation assistance devices 8, the length of the cable body 11 is ensured to be sufficient so that even when the car 2 is stopped at the lowest floor, the car 2 will not interfere with the cable body 11 when the car support structure 9 is in the retracted state. Wire, rope, chain, or the like is used as the cable body 11.

[0055] Next, the operation method of the pair of work assistance devices 8 will be explained. Work assistance devices 8 are pre-installed on each of the pair of car guide rails 6. During normal elevator operation, the car support structure 9 is in a retracted state in each of the pair of work assistance devices 8. In this state, even if the car 2 and counterweight 3 move within the hoistway 1, the work assistance devices 8 will not interfere with the car 2 and counterweight 3.

[0056] When performing maintenance work on the elevator equipment located at the bottom of the hoistway 1, the operator opens the entrance / exit 21 of the lowest floor. Furthermore, the operator moves the car 2 to a position above the lowest floor. This allows the operator at the lowest floor to pull the cables 11 connected to the floor sill 23. Then, the operator pulls the cables 11 using the respective work assistance devices 8, bringing the sill-side end of the car support structure 9 close to the floor sill 23. This causes the car support structure 9 to extend, and its sill-side end reaches the floor sill 23. Thus, in each work assistance device 8, the state of the car support structure 9 is the sill-reached state.

[0057] Then, the operator inserts the protrusions 94 of the car support structure 9 in each auxiliary work device 8 into the sill grooves 24 of the landing sill 23. This fixes each car support structure 9 to the landing sill 23. When the car support structure 9 is in the sill-reached state, if the car 2 needs to move to a position lower than the lowest floor, the car 2 interferes with the car support structure 9, preventing the car 2 from intruding into the bottom of the hoistway 1. This ensures sufficient working space for the operator at the bottom of the hoistway 1.

[0058] Then, the operator enters the bottom of the shaft 1 from the lowest floor entrance 21 to perform maintenance work on the elevator equipment.

[0059] After the maintenance work on the elevator equipment is completed, the operator moves from the bottom of the shaft 1 through the lowest floor entrance / exit 21 to the lowest floor. Then, the operator disengages the protrusions 94 of each auxiliary work device 8 from the sill grooves 24 of the floor sill 23, and uses tools such as rods to press the sill-side ends of each car support structure 9 towards the support member 10. As a result, the car support structure 9 retracts within each auxiliary work device 8, and the car support structure 9 enters a retracted state. Then, the operator closes the lowest floor entrance / exit 21. Thus, the maintenance work on the elevator equipment is completed.

[0060] In this work assistance device 8, the cable 11, connected to the car support structure 9, is connected to the landing sill 23. Furthermore, the state of the car support structure 9 can change between a sill arrival state and a retracted state. Therefore, by pulling the cable 11 from the landing, the operator can change the state of the car support structure 9 from the retracted state to the sill arrival state. This prevents the car 2 from intruding into the bottom of the hoistway 1. Thus, the operator's working space at the bottom of the hoistway 1 can be ensured without entering the bottom of the hoistway 1. Therefore, the operator's workload at the bottom of the hoistway 1 is reduced by eliminating the need for the operator to enter the bottom of the hoistway 1 to ensure working space.

[0061] Furthermore, the car support structure 9 can be in a sill arrival state by extending its length, and in a retracted state by retracting its length. Therefore, the space required for the car support structure 9 in the retracted state can be reduced. This allows for efficient utilization of the space within the hoistway 1.

[0062] Furthermore, the car support structure 9 has a plurality of first connecting parts 91 and a plurality of second connecting parts 92 connected in series. Moreover, the first connecting parts 91 and second connecting parts 92, being adjacent to each other, are connected in a manner that allows them to rotate about a connecting shaft 93. Therefore, the car support structure 9 can be extended and retracted by rotating the first connecting parts 91 and second connecting parts 92 relative to each other, thus simplifying the structure of the car support structure 9.

[0063] Implementation method 2.

[0064] Figure 6 This is a side view showing the work assistance device of Embodiment 2. Each work assistance device 8 has a recovery mechanism 95. The recovery mechanism 95 is a mechanism that applies force to the car support structure 9 in the direction of retraction of the car support structure 9. The recovery mechanism 95 is provided on the car support structure 9.

[0065] The recovery mechanism 95 has multiple unit mechanism sections 951. Each unit mechanism section 951 generates a force in a direction that brings the first connecting member 91 and the second connecting member 92, which are adjacent to each other, closer together. That is, the force of the unit mechanism section 951 is applied to the adjacent first connecting member 91 and the second connecting member 92 in the direction that the car support structure 9 folds and contracts.

[0066] Each unit mechanism 951 has an elastic body 951a, a first connecting part 951b, and a second connecting part 951c.

[0067] The first connecting portion 951b is fixed to the first connecting member 91. The second connecting portion 951c is fixed to the second connecting member 92. In this embodiment, the first connecting portion 951b is fixed at the middle portion along the length direction of the first connecting member 91, and the second connecting portion 951c is fixed at the middle portion along the length direction of the second connecting member 92. Furthermore, in this embodiment, the first connecting portion 951b protrudes from the first connecting member 91 in a direction perpendicular to both the length direction of the first connecting member 91 and the direction along the connecting shaft 93. Furthermore, in this embodiment, the second connecting portion 951c is fixed in the space between a pair of connecting plates 921. Pins are used as the first connecting portion 951b and the second connecting portion 951c, respectively.

[0068] One end of the elastic body 951a is connected to the first connecting portion 951b. The other end of the elastic body 951a is connected to the second connecting portion 951c. The elastic body 951a generates an elastic restoring force in the direction in which the first connecting portion 951b and the second connecting portion 951c approach each other. Therefore, each unit mechanism 951 applies the elastic restoring force of the elastic body 951a to the first connecting member 91 and the second connecting member 92 in the direction in which the angle between the connecting members between the first connecting member 91 and the second connecting member 92 decreases. In this embodiment, a spring is used as the elastic body 951a.

[0069] During normal elevator operation, in each of the pair of auxiliary operation devices 8, the force of the restoring mechanism 95 keeps the car support structure 9 in the retracted state. In each auxiliary operation device 8, when the car support structure 9 changes from the retracted state to the sill arrival state, the operator at the landing site pulls the cable 11 to overcome the force of the restoring mechanism 95 and unfold the car support structure 9. As a result, the car support structure 9 extends, and its sill-side end reaches the landing sill 23. Thus, the car support structure 9 is in the sill arrival state.

[0070] In each of the operation assistance devices 8, when the state of the car support structure 9 is returned from the sill arrival state to the retracted state, the operator disengages the protrusion 94 of the car support structure 9 from the sill groove 24 of the landing sill 23 and reduces the force of the pulling cable 11. As a result, the car support structure 9 automatically folds and retracts using the force of the recovery mechanism 95. Thus, the state of the car support structure 9 becomes the retracted state. The other structures in this embodiment are the same as in Embodiment 1.

[0071] In this operation assistance device 8, the force of the recovery mechanism 95 is applied to the car support structure 9 in the direction of contraction. Therefore, even without pressing the car support structure 9 towards the support member 10, the force of the recovery mechanism 95 can be used to contract the car support structure 9. As a result, the state of the car support structure 9 can be easily changed from the sill arrival state to the retraction state.

[0072] Implementation method 3.

[0073] Figure 7 This is an enlarged view showing the car support structure of the operation assistance device of Embodiment 3 fixed to the landing sill. A through hole 911 is provided in the first connecting member 91 at the sill-side end of the car support structure 9. The through hole 911 extends through the first connecting member 91 in a direction perpendicular to both the length direction of the first connecting member 91 and the width direction of the car support structure 9.

[0074] A threaded hole 231 is provided in the landing sill 23. The threaded hole 231 extends from the bottom surface of the sill groove 24 to the lower surface of the landing sill 23.

[0075] The operation auxiliary device 8 has a fixing bolt 96. The fixing bolt 96 is a fastener that fixes the car support structure 9 to the landing sill 23 when the car support structure 9 is in the sill arrival state.

[0076] The threaded portion of the fixing bolt 96 passes through the through hole 911. Furthermore, the threaded portion of the fixing bolt 96 is installed in the threaded hole 231. The car support structure 9 is fixed to the landing sill 23 by screwing the threaded portion of the fixing bolt 96, which passes through the through hole 911, into the threaded hole 231. With the car support structure 9 fixed to the landing sill 23 by the fixing bolt 96, the sill-side end of the car support structure 9 overlaps with the upper surface of the landing sill 23. In this embodiment, no protrusion 94 for embedding into the sill groove 24 is provided on the car support structure 9.

[0077] The car support structure 9 is detached from the landing sill 23 by disengaging the fixing bolts 96 from the threaded holes 231. The other structures in this embodiment are the same as in embodiment 1.

[0078] In this operation assistance device 8, when the car support structure 9 is in the sill arrival state, the car support structure 9 is fixed to the landing sill 23 by fixing bolts 96. Therefore, the car support structure 9 can be fixed to the landing sill 23 more reliably, and the accidental detachment of the car support structure 9 from the landing sill 23 can be more reliably prevented.

[0079] Implementation method 4.

[0080] Figure 8This is an enlarged view showing the car support structure of the operation assistance device according to Embodiment 4 fixed to the landing sill. Each operation assistance device 8 has a holding member 97. The holding member 97 is a fastener that fixes the car support structure 9 to the landing sill 23 when the car support structure 9 is in the sill arrival state. The holding member 97 has a bolt 971 and a pressing member 972.

[0081] The pressing member 972 is a plate-shaped component. A threaded hole 973 is provided in the pressing member 972. The threaded hole 973 penetrates the pressing member 972 along its thickness direction. The pressing member 972 overlaps with the lower surface of the landing sill 23. The first connecting member 91, forming the sill-side end of the car support structure 9, overlaps with the upper surface of the landing sill 23. A portion of the landing sill 23 is sandwiched between the first connecting member 91 and the pressing member 972, forming the sill-side end of the car support structure 9.

[0082] A through hole 912 is provided in the first connecting member 91 at the sill side end of the car support structure 9. The through hole 912 passes through the first connecting member 91 in a direction perpendicular to both the length direction of the first connecting member 91 and the width direction of the car support structure 9.

[0083] The threaded portion of bolt 971 passes through the through hole 912. Furthermore, the threaded portion of bolt 971 is installed in the threaded hole 973. By screwing the threaded portion of bolt 971, which passes through the through hole 912, into the threaded hole 973, the landing sill 23 is held between the first connecting member 91 and the pressing member 972. Thus, the car support structure 9 is fixed to the landing sill 23. That is, by holding the landing sill 23 between the car support structure 9 and the pressing member 972, the car support structure 9 is fixed to the landing sill 23. With the car support structure 9 fixed to the landing sill 23, the protrusion 94 is embedded in the sill groove 24.

[0084] By loosening the bolt 971 relative to the threaded hole 973, the car support structure 9 is detached from the landing sill 23. The other structures in this embodiment are the same as in embodiment 1.

[0085] In this operation assistance device 8, when the car support structure 9 is in the sill arrival state, the car support structure 9 is fixed to the landing sill 23 by the holding member 97. Therefore, the car support structure 9 can be fixed to the landing sill 23 more reliably, and the accidental detachment of the car support structure 9 from the landing sill 23 can be more reliably prevented. In addition, the work of machining threaded holes for mounting bolts in the landing sill 23 can be eliminated.

[0086] Furthermore, with the landing sill 23 held between the car support structure 9 and the pressing member 972, the protrusion 94 of the car support structure 9 is embedded in the sill groove 24. Therefore, the protrusion 94 can prevent the car support structure 9 from sliding relative to the landing sill 23 in a direction that would cause it to detach from the landing sill 23. This allows for a more reliable maintenance of the car support structure 9 being fixed to the landing sill 23.

[0087] Implementation method 5.

[0088] Figure 9 This is a top view showing the work assistance device according to Embodiment 5. The work assistance device 8 has a mounting member 13. The mounting member 13 is mounted on the support member 10. Specifically, the mounting member 13 is mounted on the inclined plate 102 of the support member 10 via a support shaft 12. The support shaft 12 is perpendicular to the inclined plate 102. Furthermore, the support shaft 12 is arranged horizontally. The mounting member 13 is rotatable relative to the support member 10 about the support shaft 12.

[0089] The opposite end of the car support structure 9 is mounted to the inclined plate 102 via a mounting member 13. The opposite end of the car support structure 9 is connected to the mounting member 13 via a mounting shaft 14. The mounting shaft 14 is a shaft having an axis perpendicular to a straight line parallel to each connecting shaft 93. The mounting shaft 14 is perpendicular to the support shaft 12. The car support structure 9 is connected to the mounting member 13 in a manner that allows it to rotate around the mounting shaft 14. In this embodiment, the connecting member forming the opposite end of the car support structure 9 is a first connecting member 91, and the connecting member forming the side end of the car support structure 9 is also a first connecting member 91. Furthermore, in this embodiment, the mounting shaft 14 is arranged along the length direction of the first connecting member 91 forming the opposite end of the car support structure 9.

[0090] The protrusion 94 protrudes from the first connecting member 91 at the sill-side end of the car support structure 9 in a direction parallel to each connecting shaft 93. Therefore, when the car support structure 9 rotates about the mounting shaft 14 and the protrusion 94 becomes horizontal, each connecting shaft 93 of the car support structure 9 also becomes horizontal. Furthermore, when the car support structure 9 rotates about the mounting shaft 14 and the protrusion 94 faces downwards, each connecting shaft 93 of the car support structure 9 is arranged in a vertical direction.

[0091] Figure 10 It is shown Figure 9The image shows a top view of the car support structure 9 with its protrusion 94 embedded in the sill groove 24 of the landing sill 23. When the car support structure 9 is in the sill arrival state, the protrusion 94 of the car support structure 9 is embedded in the sill groove 24 of the landing sill 23, and the protrusion 94 faces downward. Thus, the connecting shafts 93 of the car support structure 9 are arranged along the vertical direction.

[0092] In each of the operation auxiliary devices 8, when the state of the car support structure 9 changes from the retracted state to the sill arrival state, the operator at the landing station unfolds the car support structure 9 by pulling the cable 11. At this time, the car support structure 9 is unfolded with each connecting shaft 93 horizontally arranged. As a result, the car support structure 9 extends, and the sill-side end of the car support structure 9 reaches the landing sill 23. Thus, the state of the car support structure 9 becomes the sill arrival state.

[0093] Then, the operator rotates the car support structure 9 relative to the mounting component 13 about the mounting shaft 14 until the protrusion 94 faces downward. Thus, as... Figure 10 As shown, each connecting shaft 93 is arranged along the vertical direction. Then, the protrusion 94 is embedded into the sill groove 24. Thus, the car support structure 9 is fixed to the landing sill 23.

[0094] In each of the operation assistance devices 8, when the state of the car support structure 9 is returned from the sill arrival state to the retracted state, the operator disengages the protrusion 94 from the sill groove 24 and rotates the car support structure 9 relative to the mounting member 13 about the mounting axis 14 until the protrusion 94 becomes horizontal. Then, the operator presses the car support structure 9 toward the support member 10. As a result, the car support structure 9 folds and retracts. Thus, the state of the car support structure 9 becomes the retracted state. The other structures in this embodiment are the same as in Embodiment 1.

[0095] In this work assistance device 8, the car support structure 9 is connected to the mounting component 13 in a manner that allows it to rotate around a mounting shaft 14, which has an axis perpendicular to a straight line parallel to each connecting shaft 93. Therefore, when the car support structure 9 is in the sill-reached state, each connecting shaft 93 can be arranged in the vertical direction. This improves the rigidity of the car support structure 9 against loads in the vertical direction. Thus, even when the car support structure 9 is subjected to a load from the car 2 from above in a vertically downward direction, the car support structure 9 is less prone to bending, and the operator's working space at the bottom of the hoistway 1 can be more reliably ensured.

[0096] Implementation method 6.

[0097] Figure 11This is a side view showing the work assistance device of Embodiment 6. Figure 12 It is along Figure 11 A sectional view along line XII-XII. Figure 11 and 12 The diagram shows the operation assistance device 8 when the car support structure 9 is in the sill arrival state. In each of the pair of operation assistance devices 8, the car support structure 9 is movable relative to the support member 10. In this embodiment, the car support structure 9 is movable horizontally relative to the support member 10. The support member 10 is fixed within the hoistway 1 with its position away from the inner wall surface of the hoistway 1. The support member 10 is disposed between the back side of the car guide rail 6 and the inner wall surface of the hoistway 1 in the width direction of the hoistway 1.

[0098] The support member 10 has a pair of opposing plates 105, a fixing plate 106 and a fixing pin 107.

[0099] The fixing plate 106 overlaps with the back of the car guide rail 6. Therefore, the fixing plate 106 is perpendicular to the width direction of the hoistway 1. Furthermore, the fixing plate 106 is detachably fixed to the car guide rail 6 using rail clamps (not shown).

[0100] A pair of opposing plates 105 are fixed to a fixed plate 106. Furthermore, the pair of opposing plates 105 are vertically opposed to each other. A space is formed between the pair of opposing plates 105 for the car support structure 9 to pass through.

[0101] like Figure 11 As shown, a pair of opposing plates 105 each have a fixed-side opposing portion 105a and an open-side opposing portion 105b. In each of the pair of opposing plates 105, the open-side opposing portion 105b protrudes from the fixed-side opposing portion 105a toward the landing sill 23.

[0102] When the support member 10 is viewed along the width direction of the shaft 1, the fixing plate 106 is only disposed within the range where the fixing side opposing portions 105a are opposite to each other, and not within the range where the sill side opposing portions 105b are opposite to each other. Only the fixing side opposing portions 105a of each pair of opposing plates 105 are fixed to the fixing plate 106.

[0103] The retaining pin 107 is fixed between the open-side opposing portions 105b of each of the pair of opposing plates 105. In addition, the retaining pin 107 is arranged along the vertical direction.

[0104] The car support structure 9 is an elongated component with an axis. Here, the direction perpendicular to the axis of the car support structure 9 is defined as the width direction of the car support structure 9. Furthermore, the direction perpendicular to both the axis and the width direction of the car support structure 9 is defined as the thickness direction of the car support structure 9. The car support structure 9 is then configured such that its thickness direction aligns with the vertical direction.

[0105] The car support structure 9 has a main component 98, an anti-detachment component 99, and an extension component 100.

[0106] The main component 98 and the extension component 100 are components along the axis of the car support structure 9. Therefore, the length direction of both the main component 98 and the extension component 100 is aligned with the axis of the car support structure 9. One end of the extension component 100 is fixed to one end of the main component 98. The other end of the main component 98 is the opposite end of the sill of the car support structure 9. The other end of the extension component 100 is the sill-side end of the car support structure 9.

[0107] The main body component 98 has a pair of elongated plates 981. The pair of elongated plates 981 are plates along the axis of the car support structure 9. The pair of elongated plates 981 are opposite each other in the width direction of the car support structure 9.

[0108] The anti-detachment component 99 is fixed to the opposite end of the sill of the car support structure 9. Furthermore, the anti-detachment component 99 is fixed between a pair of elongated plates 981. In this embodiment, the pin connecting the pair of elongated plates 981 to each other is used as the anti-detachment component 99. The anti-detachment component 99 is arranged along the width direction of the car support structure 9.

[0109] A protrusion 94 is provided at the sill-side end of the car support structure 9. The protrusion 94 protrudes downward from the extension member 100 along the thickness direction of the car support structure 9. Figure 11 As shown, the cable body 11, which is connected to the lowest level station sill 23, is connected to the extension member 100.

[0110] A portion of the car support structure 9 passes through the space between a pair of opposing plates 105. Thus, the car support structure 9 is sandwiched between the pair of opposing plates 105 in the thickness direction of the car support structure 9. The car support structure 9 can be guided by the pair of opposing plates 105 to move relative to the support member 10 in the direction along the pair of opposing plates 105, i.e., in the horizontal direction.

[0111] A retaining pin 107 passes between a pair of elongated plates 981. Furthermore, the retaining pin 107 is slidable between the elongated plates 981 along the length of the main body component 98. Thus, the car support structure 9 is slidable relative to the retaining pin 107 and movable relative to the support member 10 in the direction along the axis of the car support structure 9. The range within which the car support structure 9 can slide relative to the retaining pin 107 is the range between the anti-detachment member 99 and the extension member 100. Furthermore, the car support structure 9 is also rotatable relative to the support member 10 about the retaining pin 107.

[0112] In each of the operation auxiliary devices 8, the state of the car support structure 9 changes between the sill arrival state and the retraction state by moving the car support structure 9 relative to the support member 10.

[0113] When the car support structure 9 is in the sill arrival state, the main component 98 is supported by the support member 10, and the extension member 100 reaches the landing sill 23. In addition, when the car support structure 9 is in the sill arrival state, the protrusion 94 is embedded in the sill groove 24 of the landing sill 23.

[0114] Figure 13 It is shown Figure 12 The image shows a cross-sectional view of the car support structure 9 in its retracted state, showing the various auxiliary operating devices 8. In the retracted state, the car support structure 9 is positioned in the space between the back of the car guide rail 6 and the inner wall of the hoistway 1. Furthermore, in the retracted state, a portion of the main body component 98 is housed in the space between a pair of opposing plates 105, and the car support structure 9 is positioned along the depth direction of the hoistway 1. Additionally, in the retracted state, a portion of the main body component 98 protrudes from the support member 10 to a side further away from the landing sill 23 than the support member 10.

[0115] When the car support structure 9 changes from a retracted state to a sill arrival state, it is moved relative to the support member 10 towards the landing sill 23 by pulling the cable 11 from the landing. At this time, the car support structure 9 rotates relative to the support member 10 about the fixing pin 107 and moves relative to the support member 10 towards the anti-detachment member 99 towards the fixing pin 107. Thus, the extension member 100 of the car support structure 9 reaches the landing sill 23. The car support structure 9 is then in the sill arrival state. The protrusion 94 of the extension member 100 is then inserted into the sill groove 24.

[0116] Furthermore, when the car support structure 9 is moved from the sill arrival state to the retracted state, after the protrusion 94 is disengaged from the sill groove 24, the car support structure 9 is pressed away from the landing sill 23 using a tool such as a rod. This causes the car support structure 9 to move relative to the support member 10 toward the space between the back of the car guide rail 6 and the inner wall of the hoistway 1. At this time, the car support structure 9 rotates relative to the support member 10 about the fixing pin 107, and moves relative to the support member 10 toward the extension member 100 towards the fixing pin 107. As a result, a portion of the main body member 98 protrudes from the support member 10 to a side further away from the landing sill 23 than the support member 10, and a portion of the main body member 98 is housed in the space between a pair of opposing plates 105. Thus, the car support structure 9 is moved to the retracted state. The other structures in this embodiment are the same as in Embodiment 1.

[0117] In this work assistance device 8, the state of the car support structure 9 changes between a sill arrival state and a retraction state by moving the car support structure 9 relative to the support member 10. Therefore, it is not necessary to extend or retract the car support structure 9. As a result, the structure of the car support structure 9 can be simplified, and the work assistance device 8 can be easily manufactured. Furthermore, since it is not necessary to extend or retract the car support structure 9, the rigidity of the car support structure 9 can be easily improved.

[0118] In addition, in Embodiment 2, the restoration mechanism 95 is applied to the car support structure 9 of Embodiment 1. However, the restoration mechanism 95 may also be applied to the car support structure 9 of Embodiments 3 to 5.

[0119] Furthermore, in Embodiment 3, the structure in which the car support structure 9 is fixed to the landing sill 23 by fixing bolts 96 is applied to the car support structure 9 in Embodiment 1. However, the structure in which the car support structure 9 is fixed to the landing sill 23 by fixing bolts 96 can also be applied to the car support structure 9 in Embodiments 2, 5, and 6.

[0120] Furthermore, in Embodiment 4, the structure in which the car support structure 9 is fixed to the landing sill 23 by the holding member 97 is applied to the car support structure 9 in Embodiment 1. However, the structure in which the car support structure 9 is fixed to the landing sill 23 by the holding member 97 can also be applied to the car support structure 9 in Embodiments 2, 5, and 6.

[0121] Furthermore, in embodiments 1 to 5, the second connecting member 92 has a pair of connecting plates 921. However, the structure of the second connecting member 92 is not limited to this. For example, the second connecting member 92 may be configured to have only one connecting plate 921. In this way, the first connecting member 91 and the second connecting member 92 can also be connected to each other by means of the connecting shaft 93.

[0122] Furthermore, in embodiments 1 to 4, a connecting member joint formed by connecting multiple first connecting members 91 and multiple second connecting members 92 in series is used as the car support structure 9. However, the car support structure 9 is not limited to the connecting member joint. For example, a sliding member joint formed by connecting multiple sliding members in series can also be used as the car support structure. In this case, the car support structure extends and retracts by sliding the multiple sliding members against each other. For example, multiple cylindrical members are used as multiple sliding members. When multiple cylindrical members are used as multiple sliding members, another cylindrical member is slidably inserted into the inside of one of two adjacent cylindrical members.

[0123] Furthermore, in each of the above embodiments, a pair of work assistance devices 8 are provided within the hoistway 1. However, the number of work assistance devices 8 is not limited to this. For example, the number of work assistance devices 8 may be only one. In this case, the support member 10 is fixed only on either of the pair of car guide rails 6.

[0124] Furthermore, in each of the above embodiments, the support member 10 is fixed to the car guide rail 6. However, the object for fixing the support member 10 is not limited to this. For example, the support member 10 may also be fixed to the inner wall surface of the hoistway 1.

[0125] Furthermore, in each of the above embodiments, the car support structure 9 is positioned at a height corresponding to the ground level of the lowest floor. However, the position of the car support structure 9 in the vertical direction of the hoistway 1 is not limited to this. For example, the car support structure 9 may also be positioned at a height corresponding to the ground level of a floor one floor above the lowest floor.

[0126] Label Explanation

[0127] 1: Hoistway; 2: Car; 9: Car support structure; 10: Support component; 11: Cable body; 13: Mounting component; 14: Mounting shaft; 23: Landing sill; 91: First connecting component (connecting component); 92: Second connecting component (connecting component); 93: Connecting shaft; 95: Restoration mechanism; 96: Fixing bolt (fixing component); 97: Holding component (fixing component).

Claims

1. An elevator operation auxiliary device, wherein, The elevator's operating auxiliary device includes: Support components, which are fixed within the hoistway for the movement of the car; A car support structure, supported by the support member, is disposed in the height direction of the hoistway between the bottom of the hoistway and the car; and The cable-stayed structure is connected to the car support structure and to the landing sill. When viewed from above, the support is fixed in a position detached from the area of ​​the car. The state of the car support structure can change between a sill arrival state, where the car support structure moves from the support member to the landing sill, and a retraction state, where the car support structure disengages from the landing sill. When the hoistway is viewed from above, by making the state of the car support structure the sill arrival state, a part of the car support structure overlaps with the area of ​​the car, and by making the state of the car support structure the retraction state, the car support structure detaches from the area of ​​the car.

2. The elevator operation auxiliary device according to claim 1, wherein, The elevator's operating auxiliary device includes a fixing component that fixes the car supporting structure to the landing sill when the car supporting structure is in the sill arrival state.

3. The elevator operation auxiliary device according to claim 1, wherein, The state of the car support structure is determined by the extension of the car support structure to become the sill arrival state, and by the contraction of the car support structure to become the retraction state.

4. The elevator operation auxiliary device according to claim 2, wherein, The state of the car support structure is determined by the extension of the car support structure to become the sill arrival state, and by the contraction of the car support structure to become the retraction state.

5. The elevator operation auxiliary device according to claim 3, wherein, The elevator's operation assistance device includes a recovery mechanism that applies force to the car support structure in the direction of its retraction.

6. The elevator operation auxiliary device according to claim 4, wherein, The elevator's operation assistance device includes a recovery mechanism that applies force to the car support structure in the direction of its retraction.

7. The elevator operation auxiliary device according to any one of claims 3 to 6, wherein, The car support structure has multiple connecting components connected in series. The two adjacent connecting parts are connected in a manner that allows them to rotate about the connecting axis.

8. The elevator operation auxiliary device according to claim 7, wherein, The elevator's operating auxiliary device includes a mounting component, which is mounted on the support member. The car support structure is connected to the mounting component in a manner that allows it to rotate about a mounting axis having an axis perpendicular to a straight line parallel to the connection axis.

9. The elevator operation auxiliary device according to claim 1 or 2, wherein, The car support structure is movable relative to the support member. By moving the car support structure relative to the support member, the state of the car support structure changes between the sill arrival state and the retraction state.

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