Elevators and elevator inspection methods
The elevator system with a movement restriction mechanism using a stopper pin and connectors addresses the safety concern during inspections by controlling the car's movement, ensuring safe operation and worker safety during brake inspections.
Patent Information
- Application Number
- JP2024520195
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-05-13
- Publication Date
- 2025-08-13
- Estimated Expiration
- 2042-05-13
AI Technical Summary
During elevator maintenance and inspection, ensuring the safety of workers by properly restricting the movement of the elevator car is crucial, especially when the hoist brake is released, as it allows the car and counterweight to move freely.
An elevator system with a movement restriction mechanism using a rod-shaped stopper pin and connectors, controlled by an elevator control device, to manage the car's movement based on the connection state of these connectors, ensuring safe operation during inspections.
The system reliably ensures worker safety by preventing the elevator car from free-running during brake inspections, maintaining control over the car's movement and ensuring safe operation.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to an elevator and an elevator inspection method. [Background technology]
[0002] One technique related to elevators and elevator inspection methods is disclosed in the following Patent Document 1. Patent Document 1 states, "When performing maintenance or inspection work on an elevator, there are cases where work is started after a rod-shaped stopper pin installed on the elevator car is engaged with each stopper fixed to the left and right guide rails to restrict the movement of the elevator car during work." [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-104117 Summary of the Invention [Problem to be solved by the invention]
[0004] One of the elevator maintenance inspection items is the inspection of the hoist brake. During this inspection, the hoist brake is released, which allows the car and counterweight to move freely. For this reason, when the hoist brake is released from the car, it is necessary to ensure the safety of the workers by ensuring that it can only be performed while the car's movement is properly restricted.
[0005] Therefore, an object of the present invention is to provide an elevator and an elevator inspection method that can reliably ensure the safety of workers during inspection work. [Means for solving the problem]
[0006] In order to solve the above problems, for example, the configurations described in the claims are adopted. The present application includes multiple means for solving the above-mentioned problems, and one example is an elevator having a passenger car, a movement restriction mechanism for restricting the movement of the passenger car, and a control device for controlling the travel of the passenger car, wherein the movement restriction mechanism comprises a rod-shaped stopper pin that can freely protrude horizontally from the passenger car, a first connector that can be connected only when the stopper pin is housed in the passenger car, and a second connector that can be connected only when the stopper pin protrudes from the passenger car, and the control device controls the travel of the passenger car based on the connection state of the first connector and the second connector. [Effects of the Invention]
[0007] According to the present invention, it is possible to provide an elevator and an elevator inspection method that can reliably ensure the safety of workers during inspection work. [Brief explanation of the drawings]
[0008] [Figure 1] 1 is an overall view for explaining the general configuration of an elevator according to an embodiment. FIG. [Figure 2] 2A and 2B are diagrams (part 1) showing the configuration of a movement restriction mechanism provided in an elevator according to an embodiment, in which FIG. 2A is a front view and FIG. 2B is a top view. [Figure 3] 3A and 3B are diagrams (part 2) showing the configuration of a movement restriction mechanism provided in an elevator according to an embodiment, in which FIG. 3A is a front view and FIG. 3B is a top view. [Figure 4] FIG. 1 is a diagram illustrating an elevator inspection method according to an embodiment. [Figure 5] 10A and 10B are diagrams comparing the connection state of the connector and the control state of the elevator in each operating state of the movement restriction mechanism. DETAILED DESCRIPTION OF THE INVENTION
[0009] <Elevator> Fig. 1 is an overall view for explaining the schematic configuration of an elevator 1 according to an embodiment. The elevator 1 shown in this figure has a passenger car 10, a car frame 11, an operating unit 12, a guide rail 13, a counterweight 14, a main rope 15, a hoisting machine 16, and an elevator control device 17. The elevator 1 further has a movement restriction mechanism 20 for restricting movement of the passenger car 10 during inspection of the elevator 1. These are configured as follows.
[0010] <Riding car 10 and car frame 11> The car 10 is box-shaped, and a car door 10a for passengers getting on and off the car 10 is provided on a part of the side wall. The car frame 11 is arranged on the side wall of the car 10 where the car door 10a is not provided, so as to go around the car 10 in the vertical direction, and is fixed to the car 10. This car frame 11 has guide portions 11a fixed to, for example, its four corners, protruding horizontally outward from the car 10. The guide portions 11a are used to guide the travel of the car 10. A pair of pulleys 11b are fixed to the bottom of the car frame 11. A main rope 15 for suspending the car 10 is slidably stretched over these pulleys 11b.
[0011] <Operation unit 12> The operation unit 12 is an operating part for inputting, for example, a signal for releasing the brake of the hoisting machine 16, which will be described later, and also an operation signal for maintenance operation, when inspecting the elevator 1. The operation unit 12 transmits operation signals wirelessly or via a wire to the elevator control device 17, which will be described later. The operation unit 12 is fixed to the elevator car 10 directly or via the car frame 11.
[0012] <Guide rail 13> The guide rails 13 are erected on both sides of the car 10 at positions sandwiching the car 10. Each of these guide rails 13 is slidably engaged with each of the guide portions 11a fixed to the top and bottom of the car frame 11, thereby guiding the travel of the car 10.
[0013] <Counterweight 14, main rope 15, hoist 16> The counterweight 14 is used to balance the passenger car 10. The main rope 15 is passed through the car frame 11 and around a pulley 11b fixed to the passenger car 10, suspending the passenger car 10 and the counterweight 14 in a hanging manner. The hoist 16 is driven with the middle portion of the main rope 15 wound around it, and causes the passenger car 10 suspended from the main rope 15 to travel.
[0014] <Elevator Control Device 17> The elevator control device 17 controls the travel of the car 10 and the opening and closing of the car door 10a. The control of the drive of the car 10 and the car door 10a by the elevator control device 17 is performed based on signals from a hall call button and a car call button (not shown here), the operating unit 12 described above, and the movement restriction mechanism 20 (described below).
[0015] Such an elevator control device 17 is configured by a computer. The computer is hardware used as a so-called computer and includes a CPU (Central Processing Unit), RAM (Random Access Memory), and non-volatile storage such as ROM (Read Only Memory) and HDD (Hard Disk Drive), as well as a network interface. The elevator control device 17 configured by a computer controls the operation of the elevator in accordance with an inspection program stored in the storage of the computer. In particular, the elevator control performed by this inspection program is characterized in that it is performed based on signals from the movement restriction mechanism 20, which will be explained below in the elevator inspection method. The location of the elevator control device 17 is not particularly limited, and it may be located above the car 10, on the inner wall of the track, or in the machine room if there is one above the track.
[0016] <Movement restriction mechanism 20> 2 and 3 are diagrams (part 1) and (part 2) showing the configuration of a movement restriction mechanism 20 provided in an elevator according to this embodiment. Of the two movement restriction mechanisms 20 shown in FIG. 1, these Figs. 2 and 3 are front views (Figs. 2A and 3B) and top views (Figs. 2B and 3B) of the movement restriction mechanism 20 on the left side of the drawing. Hereinafter, the configuration of the movement restriction mechanism 20 will be described based on Figs. 2 and 3 and the previously described Fig. 1.
[0017] The movement restriction mechanism 20 is a mechanical part for restricting the movement of the car 10, and two movement restriction mechanisms 20 are provided for the car 10. The two movement restriction mechanisms 20 are assumed to have plane-symmetric shapes as shown in FIG. 1, but they may also have the same shape. Each movement restriction mechanism 20 comprises a pin unit 100 fixed to the car 10 via the car frame 11, and a restriction plate 200 fixed to the running path of the car 10 via a guide rail 13. These are as follows.
[0018] [Pin Unit 100] The pin unit 100 is fixed to the car 10 via the car frame 11, and is fixed to both ends of the upper part of the car frame 11. Such a pin unit 100 has a stopper pin 101, a support housing 102, a lever 103, a short connector 104, and a first connector 105a, a second connector 105b, and a third connector 105c. The pin unit 100 is fixed to the car frame 11 in the support housing 102 using fixing members 106 such as screws. The parts that make up the pin unit 100 are as follows.
[0019] -Stopper pin 101- The stopper pin 101 is a cylindrical rod that can freely protrude horizontally outward from the car 10 while being supported by a support housing 102, which will be described next. The stopper pin 101 has a length sufficient to reach from the car frame 11 to a regulating plate 200, which will be described later.
[0020] -Supporting housing 102- The support housing 102 is fixed to the car frame 11 and supports the stopper pin 101 so that it can protrude horizontally outward relative to the passenger car 10 and the car frame 11. The support housing 102 includes two parallel track walls 102a, 102b. The track walls 102a, 102b have through holes 102aa, 102bb through which the stopper pin 101 is slidably inserted, thereby restricting the direction of movement of the stopper pin 101. The track walls 102a, 102b also support the stopper pin 101 by inserting the stopper pin 101 into the through holes 102aa, 102bb. The track walls 102a, 102b are arranged at intervals approximately half the length of the stopper pin 101.
[0021] The support housing 102 also has a restricting wall 102c that is perpendicular to the two track walls 102a and 102b. The restricting wall 102c is disposed closer to the center of the car 10 than the two track walls 102a and 102b, and is disposed parallel to the stopper pin 101 that is supported by the two track walls 102a and 102b.
[0022] Such a restriction wall 102c has a first fitting portion 102d and a second fitting portion 102e. These first fitting portion 102d and second fitting portion 102e are cutout portions provided in the restriction wall 102c, and are configured by cutting out the restriction wall 102c in a direction perpendicular to the extension direction of the stopper pin 101 supported by the two track walls 102a, 102b. In addition, the distance between the first fitting portion 102d located far from the guide rail 13 and the second fitting portion 102e located on the guide rail 13 side is larger than the distance between the car frame 11 and a restriction plate 200, which will be described next, thereby allowing the stopper pin 101 to reach the restriction plate 200.
[0023] -Lever 103- Lever 103 extends perpendicularly from the side peripheral wall of stopper pin 101 to the axial direction of stopper pin 101 and is an operating part for rotating stopper pin 101 about its axis and moving stopper pin 101 in the axial direction. Lever 103 has a protruding length and diameter that allows it to be freely fitted into first fitting portion 102d and second fitting portion 102e by the rotation and movement of stopper pin 101. Lever 103 also has a shape that makes it easy for an operator to rotate and move stopper pin 101.
[0024] When the lever 103 is fitted into the first fitting portion 102d (see FIGS. 2A and 2B), the tip side of the stopper pin 101 is housed inside the support housing 102 and on the car 10 side. However, the stopper pin 101 is held in a state where it is supported by the two track walls 102a and 102b. When the lever 103 is fitted into the second fitting portion 102e (see FIGS. 3A and 3B), the tip side of the stopper pin 101 protrudes from the support housing 102 and the car 10 and reaches the regulating plate 200. However, the stopper pin 101 is held in a state where it is supported by the two track walls 102a and 102b.
[0025] -Short Connector 104- The short connector 104 is for establishing a conductive connection between one of three connectors, a first connector 105a, a second connector 105b, and a third connector 105c, which will be described below, and is inserted into one of these. The short connector 104 is attached to the lever 103 and moves together with the lever 103 between the first fitting portion 102d and the second fitting portion 102e.
[0026] -First connector 105a, second connector 105b, and third connector 105c- The first connector 105a, the second connector 105b, and the third connector 105c are brought into a conductive connected state by the insertion of the short connector 104, and transmit a signal indicating the connection state to the elevator control device 17.
[0027] Of these, the first connector 105a allows the short connector 104 fixed to the lever 103 to be inserted freely when the lever 103 is fitted into the first fitting portion 102d. Also, the second connector 105b allows the short connector 104 fixed to the lever 103 to be inserted freely when the lever 103 is fitted into the second fitting portion 102e at a shallow position. Furthermore, the third connector 105c allows the short connector 104 fixed to the lever 103 to be inserted freely when the lever 103 is fitted into the second fitting portion 102e at a deep position.
[0028] [Regulation board 200] The regulating plate 200 is fixed at a predetermined height on the guide rail 13, and has an insertion hole 201 into which the stopper pin 101 of the pin unit 100 is inserted. The regulating plate 200 restricts the movement of the car 10 by inserting the stopper pin 101 into the insertion hole 201.
[0029] Such a regulating plate 200 is fixed to the guide rail 13 at a height position where the car 10 is stopped when inspecting the elevator 1 and where the stopper pin 101 of the pin unit 100 is inserted into the insertion hole 201. The regulating plate 200 is fixed at a position where it does not affect the running guidance of the car 10 due to sliding between the guide rail 13 and the guide part 11a.
[0030] <Elevator inspection method> Fig. 4 is a diagram illustrating an elevator inspection method according to an embodiment, showing operational states (1) to (4) of the movement restriction mechanism 20 operated by an operator. Fig. 5 is a diagram comparing the connection state of the connector and the control state of the elevator in the operational states (1) to (4) of the movement restriction mechanism.
[0031] The elevator inspection method described with reference to these figures is the work procedures performed by an operator when inspecting the brake of the hoisting machine 16 shown in Figure 1, and the control method performed by the elevator control device 17 in each connection state of the connectors created by each work. The control performed by the elevator control device 17 is control performed in accordance with an inspection program stored in the elevator control device 17. This inspection program is a program that enables or disables each control of the elevator 1 based on signals from the first connector 105a, the second connector 105b, and the third connector 105c. The elevator inspection method will be described below based on Figures 4 and 5, and with reference to Figure 1.
[0032] <Control in the first state (1)> First, in the first state (1), the short connector 104 is inserted into the first connector 105a, and the first connector 105a is in a connected state (ON). As a result, the second connector 105 and the third connector 105c are not connected (OFF). In this first state (1), the elevator control device 17 permits normal operation based on a signal from the first connector 105a. The elevator control device 17 also disables (-) the operation of the brake of the hoisting machine 16 on the car by the operation unit 12. The elevator control device 17 also permits maintenance operation on the car by the operation unit 12.
[0033] [Transition to the second state (2) (first step)] In the first state (1) described above, a worker climbs onto the top of the elevator car 10 of the elevator 1, which has been moved to a predetermined height, for the purpose of inspecting the elevator 1 of the hoisting machine 16. In this state, the brake operation of the hoisting machine 16 on the car by the operating unit 12 is disabled (-), so the car 10 does not enter a free-running state, and the safety of the worker on the car 10 is ensured.
[0034] At the top of the car 10, the worker removes the short connector 104 from the first connector 105a, releasing the connection state of the first connector 105a and setting it to the unconnected (OFF) state. As a result, the worker sets the first connector 105a, the second connector 105b, and the third connector 105c to the second state (2) in which they are all unconnected (OFF).
[0035] <Control in the second state (2)> In the second state (2), the elevator control device 17 disables (-) normal operation and also disables (-) braking and maintenance operation of the hoisting machine 16 on the car by the operating unit 12. This ensures the safety of workers on the car 10 in the second state (2).
[0036] [Operation to restrict movement of the car 10 (second step)] Under the control of the elevator control device 17 in the second state (2), the worker rotates the lever 103 about the stopper pin 101 as an axis to release the engagement between the first engagement portion 102d of the regulating wall 102c and the lever 103. Next, by moving the lever 103 toward the second engagement portion 102e, the stopper pin 101 is caused to protrude from the support housing 102, and the tip of the stopper pin 101 is inserted into the insertion hole 201 of the regulating plate 200. This restricts the movement of the car 10.
[0037] [Transition to the third state (3) (third step)] Next, the worker aligns the position of the lever 103 with the second fitting portion 102e of the regulating wall 102c, and rotates the lever 103 around the stopper pin 101 as an axis to fit the lever 103 into the second fitting portion 102e of the regulating wall 102c. In this state, the worker inserts the short connector 104 fixed to the lever 103 into the second connector 105b, bringing the second connector 105b into a connected state (ON), which is the third state (3).
[0038] <Control in the third state (3)> In the third state (3), based on the signal from the second connector 105b, the elevator control device 17 disables (-) normal operation of the elevator 1, allows the operating unit 12 to operate the brakes of the hoisting machine 16 on the car, and disables (-) maintenance operation on the car by the operating unit 12.
[0039] [Inspection work (fourth step)] Under the control of the elevator control device 17 in the third state (3), the worker inspects the brake of the hoisting machine 16 by operating the operating unit 12. At this time, the worker releases the brake of the hoisting machine 16, setting it into a free state in which the movement of the passenger car 10 and counterweight 14 is not restricted by the hoisting machine 16. This typically puts the passenger car 10 into a free-running state in which it moves in the upward direction, but because the stopper pin 101 is fitted into the fitting hole 201 of the regulating plate 200, the passenger car 10 is prevented from free-running. Therefore, the safety of the worker on the passenger car 10 is ensured.
[0040] The worker also sets the brake on the hoist 16 and completes the inspection.
[0041] [Transition to the fourth state (4) (5th step)] The worker then removes the short connector 104 from the second connector 105b, releasing the connection state of the second connector 105b. This temporarily puts the elevator in a second state (2) in which the first connector 105a, the second connector 105b, and the third connector 105c are all disconnected (OFF). In this second state (2), the elevator control device 17 disables (-) normal operation and also disables (-) braking and maintenance operation of the hoisting machine 16 on the car by the operating unit 12, thereby ensuring the safety of the worker.
[0042] Next, the worker rotates the lever 103 around the stopper pin 101 as an axis within the second fitting portion 102e of the regulating wall 102c, and fits the lever 103 into the deepest part of the second fitting portion 102e. In this state, the worker inserts the short connector 104 fixed to the lever 103 into the third connector 105c, and sets the third connector 105c to a connected state (ON), which is a fourth state (4).
[0043] <Control in the fourth state (4)> In the fourth state (4), the elevator control device 17 disables (-) normal operation of the elevator 1 based on a signal from the third connector 105c, disables (-) the braking operation of the hoisting machine 16 on the car by the operating unit 12, and permits only the operation of lowering the passenger car 10 among the maintenance operations on the car by the operating unit 12. In this state, because the braking operation of the hoisting machine 16 on the car by the operating unit 12 is disabled (-), the passenger car 10 will not enter a free-running state, and the safety of workers on the passenger car 10 is ensured.
[0044] [Removing the restriction on the movement of the car 10 (6th step)] Under the control of the elevator control device 17 in the fourth state (4), the worker slightly lowers the car 10 by performing a maintenance operation on the operating unit 12. This resolves the stuck state between the stopper pin 101 and the regulating plate 200. That is, in the brake inspection of the hoisting machine 16 that was performed earlier, the movement of the car 10 when the brake of the hoisting machine 16 was released caused the stopper pin 101 and the regulating plate 200 to stick, making it difficult to move the stopper pin 101. For this reason, the worker slightly lowers the car 10 by performing a maintenance operation on the operating unit 12, thereby resolving the stuck state.
[0045] [Transition to the first state (1)] The worker then removes short connector 104 from third connector 105c, releasing the connection state of third connector 105c and setting the elevator in a second state (2) in which first connector 105a, second connector 105b, and third connector 105c are all unconnected (OFF). In this second state (2), elevator control device 17 disables normal operation and also disables brake operation and maintenance operation of hoisting machine 16 on the car by operating unit 12, ensuring the safety of the worker.
[0046] Under the control of the elevator control device 17 in the second state (2), the worker rotates the lever 103 about the stopper pin 101 as an axis, and disengages the lever 103 from the second fitting portion 102e of the restricting wall 102c. Next, by moving the lever 103 toward the first fitting portion 102d, the stopper pin 101 is housed in the support housing 102, and the restriction on the movement of the car 10 is released. At this time, the brake of the hoisting machine 16 is set, so the safety of the worker on the car 10 is ensured.
[0047] Next, the worker rotates the lever 103 around the stopper pin 101 as an axis, fits the lever 103 into the first fitting portion 102d of the regulating wall 102c, and inserts the short connector 104 into the first connector 105a, bringing the first connector 105a into the connected state (ON), thus bringing it into the first state (1).
[0048] In this first state (1), based on the signal from the first connector 105a, the elevator control device 17 allows normal operation, disables (-) the operation of the brake of the hoisting machine 16 on the car by the operation unit 12, and allows maintenance operation on the car by the operation unit 12.
[0049] This completes the brake inspection of the hoisting machine 16 in the inspection work of the elevator 1.
[0050] Effect of the embodiment According to the embodiment described above, the elevator control device 17 controls the running of the car 10 based on signals from the first connector 105a, which can be connected only when the stopper pin 101 is housed, and the second connector 105b, which can be connected only when the stopper pin 101 is protruding, thereby making it possible to reliably ensure the safety of workers on the car 10 during inspection work.
[0051] As a result, particularly in brake inspection in which the brake of the hoist 16 is released by the operating unit 12 installed on the top of the passenger car 10, the worker can release the brake of the hoist 16 with the second connector 105b in the connected state only in a state in which the movement of the passenger car 10 is restricted by the protrusion of the stopper pin 101. As a result, when the brake of the hoist 16 is inspected on the top of the passenger car 10, the passenger car 10 can be prevented from free-running, and the safety of the worker can be ensured.
[0052] The present invention is not limited to the above-described embodiments and modifications, and includes various other modifications. For example, the above-described embodiments have been described in detail to clearly explain the present invention, and are not necessarily limited to those including all of the described configurations. Furthermore, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment, or to add the configuration of another embodiment to the configuration of one embodiment. Furthermore, it is possible to add, delete, or replace part of the configuration of each embodiment with other configurations. [Explanation of symbols]
[0053] 1. Elevator 10...Riding basket 12...Operation unit 16...Hoisting machine 17...Elevator control device 20...Movement control mechanism 100...pin unit 101...Stopper pin 102...Supporting housing 102a, 102b…orbit wall 102aa,102bb…Through hole 102c...Regulatory wall 102d...First fitting part 102e...Second fitting part 103...Lever 104...Short connector 105a...First connector 105b...Second connector 105c...Third connector 200...Regulation board 201…Insertion hole
Claims
1. An elevator having a car, a movement restriction mechanism for restricting movement of the car, and a control device for controlling the travel of the car, The movement restriction mechanism is A rod-shaped stopper pin that can protrude horizontally from the riding basket; The vehicle is provided with a first connector that can be connected only when the stopper pin is housed in the car, and a second connector that can be connected only when the stopper pin protrudes from the car, The control device controls the traveling of the car based on a connection state between the first connector and the second connector. Elevator.
2. The control device Only when the first connector is connected, normal travel of the car is permitted. The elevator of claim 1.
3. An operation unit provided on an upper portion of the riding basket; a hoist that runs the passenger car, The control device The brake of the hoist is permitted to be released by the operating unit only when the second connector is connected. The elevator of claim 1.
4. The movement restriction mechanism includes a restriction plate having an insertion hole into which the stopper pin protruding from the car is inserted and fixed within a running path along which the car travels. The elevator of claim 1.
5. The movement restriction mechanism includes a support housing that supports the stopper pin so that the stopper pin can project horizontally from the basket. The elevator of claim 1.
6. The support housing has a plurality of track walls that are arranged opposite each other and have through holes through which the stopper pins slidably pass.
6. The elevator according to claim 5.
7. The movement restriction mechanism is a lever fixed to the stopper pin for manipulating the protrusion of the stopper pin; a short connector fixed to the lever for individually connecting the first connector and the second connector, The elevator of claim 1.
8. The movement restriction mechanism is The stopper pin has a support housing provided with a first fitting portion that fits with the lever when the stopper pin is housed in the basket, and a second fitting portion that fits with the lever when the stopper pin protrudes from the basket.
8. The elevator according to claim 7.
9. the first fitting portion and the second fitting portion are notches formed in a restriction wall that is arranged parallel to the axis of the stopper pin, The lever is provided to protrude from the side peripheral wall of the stopper pin.
9. The elevator according to claim 8.
10. The first connector and the second connector are fixed to the restriction wall.
10. The elevator according to claim 9.
11. The movement restriction mechanism includes a third connector that can be connected only when the stopper pin protrudes from the basket and is not connected to the second connector. The elevator of claim 1.
12. An operation unit is provided on an upper portion of the riding basket, The control device permits the operation unit to perform maintenance operation of the car only when the third connector is connected.
12. The elevator according to claim 11.
13. An inspection method for an elevator having a car movement restriction mechanism including a rod-shaped stopper pin that can protrude horizontally from the car, a first connector that can be connected only when the stopper pin is housed in the car, and a second connector that can be connected only when the stopper pin protrudes from the car, and a control device that controls the travel of the car based on the connection state of the first connector and the second connector, a first step of setting the first connector to a disconnected state under control of the control device that has set the first connector to a connected state; a second step of restricting movement of the passenger basket by protruding the stopper pin from the passenger basket under control of the control device with the first connector and the second connector disconnected; a third step of connecting the second connector; and a fourth step of inspecting the elevator under control of the control device with the second connector in a connected state. How to inspect an elevator.
14. The elevator has an operation unit provided on an upper portion of the passenger car and a hoist that runs the passenger car, The second step is performed under control by the control device in which normal operation and an operation to release the brake of the hoisting machine by the operating unit are disabled, The fourth step is performed under control in which normal operation is disabled by the control device and the release operation of the brake of the hoisting machine by the operating unit is permitted. The elevator inspection method according to claim 13.
15. the movement restriction mechanism includes a third connector that can be connected only when the stopper pin protrudes from the basket and is not connected to the second connector, After the fourth step, a fifth step of disconnecting the second connector and connecting the third connector; and a sixth step of performing maintenance operation of the elevator under control of the control device with the third connector in a connected state. The elevator inspection method according to claim 13.
Citation Information
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