Elevator car, elevator, method for manufacturing an elevator car, and method for manufacturing an elevator

The elevator car design addresses the issue of a caught string preventing the movable part from moving to the detection position by using a connected movable part and detection unit, ensuring the door opens safely even when a string is caught.

JP7847748B2Active Publication Date: 2026-04-20FUJITEC CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
FUJITEC CO LTD
Filing Date
2024-05-14
Publication Date
2026-04-20

AI Technical Summary

Technical Problem

Elevator cars face issues where a string body can get sandwiched between the movable part and the facing part, preventing the movable part from moving to the detection position, which can lead to the car door not opening when needed.

Method used

The elevator car design includes a movable part that moves in the lateral direction relative to the car door, connected by a connecting part to the door's tip, with a detection unit to ensure the part moves to a detection position even when a string is caught, and a facing part that allows the movable part to contact the opposite part when the door is closed.

Benefits of technology

This configuration ensures the movable part reliably moves to the detection position, preventing the door from remaining closed when a string is caught, enhancing safety by ensuring the door opens when needed.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide an elevator car capable of moving a movable part to a detection position when a string body gets stuck between the movable part and an opposite part.SOLUTION: The elevator car comprises: a car room having an opening; a car door moved in a first lateral direction with respect to the car room so as to be movable between a closed position for closing the opening and an open position for opening the opening; a movable part movable in the first lateral direction with respect to the car door; a connection part that connects the movable part to the tip of the car door so as to position the movable part at a tip position with respect to the car door; a detection unit that detects movement of the movable part closer to the detection position of a base end side than the tip position with respect to the car door; and an opposite part facing the movable part in the first lateral direction. The movable part abuts against the opposite part when the car door is set at the closed position.SELECTED DRAWING: Figure 6
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Description

Technical Field

[0001] This specification relates to an elevator car, an elevator, and a method for manufacturing an elevator car.

Background Art

[0002] Conventionally, for example, an elevator car includes a car chamber having an opening, a car door movable between a closed position for closing the opening and an open position for opening the opening, a movable part movable with respect to the car door, a connecting part for connecting the movable part to the tip of the car door such that the movable part is positioned at the tip with respect to the car door, and a detection part for detecting that the movable part has moved with respect to the car door to a detection position on the base end side from the tip position (for example, Patent Document 1).

[0003] And when the detection part detects the movement of the movable part to the detection position, for example, the car door is configured to return to the open position. By the way, the elevator car according to Patent Document 1 includes a facing part facing the movable part, and when the car door is in the closed position, the movable part is separated from the facing part. As a result, even when the car door moves to the closed position and a string body is sandwiched between the movable part and the facing part, there is a possibility that the movable part does not move to the detection position.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Therefore, the problem is to provide an elevator car capable of moving the movable part to the detection position when a string body is sandwiched between the movable part and the facing part.

Means for Solving the Problems

[0006] The elevator car is A car cabin having an opening, A car door that can move between a closed position that closes the opening and an open position that opens the opening by moving in a first lateral direction relative to the car compartment, A movable part that can move in the first lateral direction relative to the aforementioned cage door, A connecting part is provided to connect the movable part to the front end of the cage door, such that the movable part is positioned at the front end of the cage door. A detection unit that detects that the movable part has moved relative to the cage door to a detection position closer to the base end than the tip position, The movable part and the facing part that faces each other in the lateral direction 1 are provided, The movable part strikes the opposite part when the cage door is in the closed position. [Brief explanation of the drawing]

[0007] [Figure 1] Schematic diagram of an elevator according to one embodiment [Figure 2] Plan view of the elevator car according to the same embodiment. [Figure 3] Perspective view of the elevator car according to the same embodiment [Figure 4] Front view of the elevator car according to the same embodiment. [Figure 5] Front view of the main part of the elevator car according to the same embodiment (a: diagram showing the state in which the movable part is positioned at the tip, b: diagram showing the state in which the movable part is positioned at the detection position) [Figure 6] Enlarged view of area VI in Figure 2 [Figure 7] Front view of the main part of the elevator car according to the same embodiment (a: diagram showing the movable part in an intermediate position, b: diagram showing the cord being sandwiched between the movable part and the opposite part) [Figure 8] A plan view illustrating the manufacturing method of an elevator car according to the same embodiment. [Figure 9] Front view of the main part illustrating the manufacturing method of the elevator car according to the same embodiment. [Modes for carrying out the invention]

[0008] In each drawing, the dimensions of components may be enlarged or reduced from their actual dimensions for the sake of clarity, and the dimensional ratios between drawings may not be consistent. Furthermore, in each drawing, some components may be omitted for the sake of clarity.

[0009] Terms including ordinal numbers such as "1st," "2nd," etc., are used to describe various components, but these terms are used solely for the purpose of distinguishing one component from others, and the components are not particularly limited by these terms. Furthermore, the number of components including ordinal numbers is not particularly limited; for example, there may be only one. Also, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims.

[0010] The following description will explain one embodiment of an elevator and elevator car with reference to Figures 1 to 9. Note that the following embodiment is provided as an example to aid in understanding the configuration of the elevator and elevator car, and does not limit the configuration of the elevator and elevator car.

[0011] As shown in Figure 1, the elevator 1 may include, for example, an elevator car (hereinafter also simply referred to as "car") 2 for people (passengers), a car drive unit 3 for moving the car 2, a car rail 4 for guiding the car 2, and a processing unit 5 for controlling each part of the elevator 1. The drive method of the car drive unit 3 is not particularly limited.

[0012] For example, as in this embodiment, the elevator 1 may include a car rope 6 whose first end is connected to the car 2, a counterweight 7 connected to the second end of the car rope 6, and a counterweight rail 8 that guides the counterweight 7. The car drive unit 3 may also include, for example, a sheave 3a around which the car rope 6 is wound, a drive source 3b (for example, a motor) that rotates the sheave 3a, and a braking unit 3c (for example, a brake) that brakes the sheave 3a.

[0013] That is, the car drive unit 3 may be a hoist, and the elevator 1 may have a rope drive system. However,the present invention is not limited to such a configuration. For example,the car drive unit 3 may be a hydraulic device,and the elevator 1 may have a hydraulic drive system.Alternatively, for example,the car drive unit 3 may be a linear motor,and the elevator 1 may have a linear motor drive system.

[0014] In the present embodiment, the first end of the car rope 6 is connected to the car 2, and the second end of the car rope 6 is connected to the counterweight 7. However, the present invention is not limited to such a configuration. For example, both ends of the car rope 6 may be fixed to the upper or lower part of the hoistway X1, respectively, and the car rope 6 may be wound around the sheave of the car 2 and the sheave of the counterweight 7, respectively, so that the car rope 6 is connected to the car 2 and the counterweight 7, respectively.

[0015] In the elevator 1 according to the present embodiment, the hoist, which is the car drive unit 3, is disposed inside the machine room X2. However, the present invention is not limited to such a configuration. For example, the machine room X2 may not be provided, and the elevator 1 may have a configuration in which the hoist is disposed inside the hoistway X1.

[0016] In each figure, the first direction D1 is the first lateral direction D1, the second direction D2 is the second lateral direction D2 which is a lateral direction orthogonal to the first lateral direction D1, and the third direction D3 is the vertical direction D3 which is orthogonal to each of the lateral directions D1 and D2 and is the hoisting and lowering direction in which the car 2 and the counterweight 7 move up and down. Although not particularly limited, the entrance and exit direction for a person to enter and exit the car 2 may be the second lateral direction D2 as in the present embodiment, for example.

[0017] The car 2 includes a car compartment 2a having an internal space for a person to ride in, and a car door 2b that moves in the first lateral direction D1 with respect to the car compartment 2a. The car compartment 2a includes a car opening 2c for a person to enter and exit, and the car door 2b is movable between a closed position where the car opening 2c is closed and an open position where the car opening 2c is opened.

[0018] The elevator 1 may include, for example, as in this embodiment, a landing opening 9 disposed at the landing X3 and a landing door 10 that opens and closes the landing opening 9. Thereby, a person passes between the landing X3 and the car 2 by passing through the landing opening 9 and the car opening 2c.

[0019] The car 2 may include a door drive unit 2d that performs an opening / closing operation of the car door 2b. Thereby, when the door drive unit 2d moves the car door 2b, the car door 2b opens and closes the car opening 2c of the car compartment 2a. And when the car door 2b opens and closes the car opening 2c of the car compartment 2a, the landing door 10 of the landing X3 where the car 2 stops may be configured to open and close the landing opening 9 of the landing X3 in conjunction with the car door 2b.

[0020] As in this embodiment, for example, the elevator 1 may be configured to include a landing operation panel 11 at the landing X3, and the car 2 may include a car operation panel 2e inside. And the processing unit 5 may control the running of the car 2 and the opening / closing of the car door 2b based on information input to the operation panels 2e, 11 (for example, destination floor information and door opening / closing information input to the car operation panel 2e, destination direction information input to the landing operation panel 11, etc.). [[ID=,11]]

[0021] As shown in FIG. 2, the elevator 1 may include, for example, a landing sill 12 disposed below the landing door 10. The landing sill 12 may include, for example, a groove (not shown) extending in the first lateral direction D1 in order to guide the lower end portion of the landing door 10 in the first lateral direction D1. Further, the elevator 1 may include, for example, a landing opening frame 13 extending in the vertical direction D3 so as to form a part of the landing opening 9.

[0022] As shown in Figures 2 to 4, the car 2 is equipped with a car sill 2f positioned below the car door 2b. The car sill 2f may, for example, be equipped with a groove (not shown) extending in the first lateral direction D1 to guide the lower end of the car door 2b in the first lateral direction D1. The car 2 may also be equipped with a car opening frame 14 extending in the vertical direction D3 so as to form part of the car opening 2c.

[0023] The number of each door 2b,10 is not particularly limited; for example, there may be two of each, as in this embodiment, or there may be one or three or more of each. The opening and closing method for the doors 2b,10 is a method in which multiple doors 2b,10 move in the same direction when opening and closing (one-sided open type).

[0024] As shown in Figure 3, the car 2 may include, for example, a car frame 2g that supports the car compartment 2a and a cover portion 2h that extends downward from the car sill 2f. The part of the car 2 that includes the car compartment 2a and the parts fixed to the car compartment 2a (car sill 2f, car frame 2g, cover portion 2h) is also called the car body.

[0025] As shown in Figure 4, the cage 2 may include, for example, a suspension part 2i from which the cage door 2b is suspended, a roller 2j rotatably connected to the suspension part 2i, and a guide 2k extending in a first lateral direction D1 to guide the roller 2j. As a result, the upper end of the cage door 2b is guided in the first lateral direction D1 by the roller 2j and the guide 2k.

[0026] The elevator car 2 includes a movable part 15 that can move in a first lateral direction D1 relative to the elevator door 2b, a connecting part 16 that connects the movable part 15 to the tip of the elevator door 2b, and a detection part 17 that detects the movement of the movable part 15. The movable part 15 is also called, for example, a safety. The elevator car 2 may also include a force-applying part 18 that applies force to the movable part 15, for example, as in this embodiment.

[0027] The first lateral direction D1 is also called the opening / closing direction D1, in which the car door 2b moves to open and close the car opening 2c. Of the opening / closing directions D1, the direction in which the car door 2b moves to close the car opening 2c is called the closing direction D1a, and of the opening / closing directions D1, the direction in which the car door 2b moves to open the car opening 2c is called the opening direction D1b. Therefore, the tip of the car door 2b to which the movable part 15 is connected is the end of the car door 2b on the closing direction D1a side.

[0028] The movable part 15 comprises a movable main body 15a connected to the cage door 2b by a connecting part 16, and a fixing part 15b, which is a separate part from the movable main body 15a and is fixed to the lower end of the movable main body 15a. This makes it possible to reduce the gap between the movable part 15 and the cage sill 2f. Therefore, the cord can be securely hooked onto the tip 15c of the movable part 15 (the end on the closing direction D1a side).

[0029] Incidentally, examples of strings that may be brought into basket 2 include cords for vacuum cleaners and electrical appliances, strings for bags and purses, and dog leashes. And, although not particularly limited, the thickness of the strings is generally 4 mm or more, for example, cords for vacuum cleaners and electrical appliances, and strings for bags and purses are often 4 mm to 5 mm thick.

[0030] In contrast, although not particularly limited, the dimension W4 of the gap between the tip 15c of the movable part 15 and the cage sill 2f may be, for example, 3 mm or less, preferably 2 mm or less, and more preferably 1 mm or less. This ensures that the string can be securely hooked onto the tip 15c of the movable part 15. Therefore, for example, it is possible to prevent the string from getting caught between the movable part 15 and the cage sill 2f.

[0031] The connecting portion 16 may, for example, include links 16a that are rotatably connected to the car door 2b and the movable portion 15, respectively, as in this embodiment. However, the configuration is not limited to this, and the connecting portion 16 is not particularly limited as long as it connects the movable portion 15 and the car door 2b so that the movable portion 15 can move relative to the car door 2b in the first lateral direction D1.

[0032] The detection unit 17 may, for example, include a contact-type sensor 17a (e.g., a limit switch) that detects contact of the link 16a, as in this embodiment. However, the detection unit 17 is not limited to this configuration, and is not particularly limited as long as it is configured to detect the movement of the movable part 15 relative to the car door 2b.

[0033] The force-applying part 18 may be, for example, an elastic body that applies an elastic restoring force to the movable part 15. Although not particularly limited, the force-applying part 18 may be, for example, a torsion spring whose first end is hooked onto the link 16a and whose second end is fixed to the car door 2b, as in this embodiment.

[0034] As a result, as shown in Figure 5(a), when no external force is applied to the movable part 15, the force-applying part 18 applies force to the movable part 15, so that the movable part 15 is positioned at the tip relative to the cage door 2b. Although not particularly limited, for example, if the force-applying part 18 is not provided and no external force is applied to the movable part 15, the connecting part 16 may be positioned at the tip relative to the cage door 2b due to its own weight.

[0035] When the movable part 15 is in the tip position, the contact sensor 17a is pressed by the link 16a and is in the ON state. The distance D1 in the first lateral direction between the tip of the movable part 15 in the tip position and the tip of the cage door 2b is the first distance W1.

[0036] On the other hand, as shown in Figure 5(b), when a force F1 in the opening direction D1b is applied to the movable part 15, the movable part 15 moves toward the base end side (towards the opening direction D1b) relative to the car door 2b. When the movable part 15 moves to the detection position relative to the car door 2b, the contact sensor 17a separates from the link 16a and turns off, so the detection unit 17 detects that the movable part 15 has moved to the detection position.

[0037] As a result, for example, the car door 2b is moved to the open position by the processing unit 5. Therefore, for example, if a person comes into contact with the movable part 15, the car door 2b moves to open the car opening 2c, thereby preventing the person from being trapped between the car door 2b and the car opening frame 14. The distance D1 in the first lateral direction between the tip of the movable part 15 at the detection position and the tip of the car door 2b is a second distance W2 which is shorter than the first distance W1.

[0038] Furthermore, the movable part 15 moves to the detection position by moving only the distance between the tip position and the detection position (i.e., the difference between the first distance W1 and the second distance W2). This prevents the movable part 15 from unnecessarily moving to the detection position due to, for example, the movable part 15 shaking when the car door 2b is moving.

[0039] While not particularly limited, the distance between the tip position and the detection position (i.e., the difference between the first distance W1 and the second distance W2) may be, for example, 5 mm or more. This ensures that, for example, when the car door 2b is moving between the open position and the closed position, the movable part 15 does not unnecessarily move to the detection position.

[0040] Furthermore, although not particularly limited, the distance between the tip position and the detection position (i.e., the difference between the first distance W1 and the second distance W2) may be, for example, 10 mm or less. This allows for the appropriate detection of the presence of a person or object between the movable part 15 and the elevator opening frame 14.

[0041] However, as shown in Figures 5 and 6, the presence of the fixed part 15b reduces the gap between the movable part 15 and the cage sill 2f. As a result, there is a risk that foreign objects such as pebbles may get caught between the movable part 15 and the cage sill 2f.

[0042] In contrast, the lower end portion 15d of the movable portion 15 is formed with an inclination so as to extend upward from the tip portion 15c to the base portion 15e of the movable portion 15. As a result, the gap between the lower end portion 15d of the movable portion 15 and the sill 2f increases from the tip portion 15c to the base portion 15e of the movable portion 15.

[0043] Therefore, for example, when the cage door 2b and the movable part 15 are moving in the closing direction D1a, if the movable part 15 rides up a foreign object that has entered the gap between the lower end 15d of the movable part 15 and the cage sill 2f, the foreign object is more easily guided from the tip 15c of the movable part 15 to the base end 15e. Thus, for example, it is possible to suppress the foreign object from getting caught between the movable part 15 and the cage sill 2f.

[0044] Furthermore, the movable part 15 is connected to the car door 2b by a rotating link 16a. As a result, when the movable part 15 moves in the opening direction D1b relative to the car door 2b (i.e., when moving from the tip position toward the detection position), it moves upward relative to the car door 2b.

[0045] Therefore, for example, if a foreign object enters the gap between the lower end 15d of the movable part 15 and the cage sill 2f while the cage door 2b and the movable part 15 are moving in the closing direction D1a, the foreign object will push the movable part 15 in the opening direction D1b. As a result, the movable part 15 will move in the opening direction D1b relative to the cage door 2b and also move upward. Thus, the movable part 15 will ride up the foreign object, further suppressing the foreign object from getting caught between the movable part 15 and the cage sill 2f.

[0046] As shown in Figure 6, the landing opening frame 13 may include, for example, a landing door stopper 13a facing the landing door 10 in the first lateral direction D1. The landing door stopper 13a may include, for example, a buffer (for example, rubber) 13b, as in this embodiment. The landing door 10 may then be in contact with the buffer 13b when it is in the closed position that closes the landing opening 9.

[0047] The car opening frame 14 may, for example, be provided with a car door stopper 14a facing the car door 2b in the first lateral direction D1, as in this embodiment. The car door stopper 14a may, for example, be provided with a buffer (for example, rubber) 14b, as in this embodiment. The car door 2b may then be in contact with the buffer 14b when it is in the closed position, for example, when the car opening 2c is closed.

[0048] Furthermore, the cage opening frame 14 includes a facing portion 14c that faces the movable portion 15 in the first lateral direction D1. The facing portion 14c includes a base portion 14d positioned away from the movable portion 15 in the first lateral direction D1, and a movable contact portion 14e, which is a separate part from the base portion 14d, fixed to the base portion 14d, and comes into contact with the movable portion 15 when the cage door 2b is in the closed position.

[0049] Although not particularly limited, the base portion 14d may be formed in the shape of a plate extending along the second lateral direction D2 and the vertical direction D3, for example, as in this embodiment. Also, although not particularly limited, the movable contact portion 14e may be formed in the shape of a rectangular tube extending along the vertical direction D3, for example, as in this embodiment.

[0050] As shown in Figure 7(a), when the cage door 2b is in the closed position, the tip 15c of the movable part 15 contacts the movable contact part 14e of the opposing part 14c, so the movable part 15 is positioned at an intermediate position between the tip position (see Figure 5(a)) and the detection position (see Figure 5(b)) with respect to the cage door 2b. The distance D1 in the first lateral direction between the tip of the movable part 15 at the intermediate position and the tip of the cage door 2b is a third distance W3, which is shorter than the first distance W1 and longer than the second distance W2.

[0051] As a result, when the cage door 2b is in the closed position, the movable part 15 moves to the detection position by moving only the distance between the intermediate position and the detection position (i.e., the difference between the third distance W3 and the second distance W2). Therefore, as shown in Figure 7(b), if the string Y1 is caught between the movable part 15 and the movable contact part 14e of the opposing part 14c, the movable part 15 can be reliably moved to the detection position. Thus, for example, even if the string Y1 is caught between the movable part 15 and the opposing part 14c, the pinching of the string Y1 can be reliably detected.

[0052] While not particularly limited, the distance between the intermediate position and the detection position (i.e., the difference between the third distance W3 and the second distance W2) may be, for example, 3 mm or less. This ensures that even if a thin string Y1, for example, with a thickness of 4 mm to 5 mm, gets caught between the movable part 15 and the opposing part 14c, the pinching of the string Y1 can be reliably detected.

[0053] Furthermore, while the string Y1 generally rests on the cage sill 2f, for example, as shown in Figure 4, the tip of the fixing part 15b (the end in the closing direction D1a) may be in the same position as the tip of the movable main body part 15a (the end in the closing direction D1a) in the first lateral direction D1. This ensures that, for example, if the string Y1 becomes trapped between the fixing part 15b and the opposing part 14c, the movable part 15 can be reliably moved to the detection position.

[0054] Next, a method for manufacturing the elevator car 2 according to this embodiment will be described. Note that the following method is provided as an example to aid in understanding the manufacturing method of the elevator car 2, and does not limit the manufacturing method of the elevator car 2.

[0055] As shown in Figure 8, for example, in an existing elevator car, the opposite portion 14c of the elevator car opening frame 14 is composed only of the base portion 14d. In such a configuration, when the elevator car door 2b is in the closed position, the movable portion 15 is separated from the opposite portion 14c (base portion 14d).

[0056] Therefore, as shown in Figure 6, the movable contact part 14e is fixed to the base part 14d. This allows the movable part 15 to come into contact with the opposite part 14c when the cage door 2b is in the closed position. The method of fixing the movable contact part 14e to the base part 14d is not particularly limited, and may be, for example, bonded with adhesive, fastened with fastening means (e.g., bolts and nuts), or welded.

[0057] Furthermore, as shown in Figure 9, for example, in an existing cage, the movable part 15 consists only of the movable main body part 15a. In such a configuration, the gap between the movable part 15 and the cage sill 2f is large. Although not particularly limited, the dimension W5 of this gap is, for example, 6 mm or more.

[0058] Therefore, as shown in Figure 4, the fixing part 15b is fixed to the lower end of the movable main body part 15a. This makes it possible to reduce the gap between the movable part 15 and the cage sill 2f. The method of fixing the fixing part 15b to the movable main body part 15a is not particularly limited, and may be, for example, bonded with adhesive, fastened with fastening means (for example, bolts and nuts), or welded.

[0059] [1] Based on the above, the elevator car 2 is as in this embodiment. A cage compartment 2a having an opening 2c, A car door 2b is movable between a closed position that closes the opening 2c and an open position that opens the opening 2c, by moving in the first lateral direction D1 relative to the car compartment 2a. A movable part 15 that can move in the first lateral direction D1 relative to the cage door 2b, A connecting portion 16 is provided to connect the movable portion 15 to the tip of the car door 2b, such that the movable portion 15 is positioned at the tip of the car door 2b, A detection unit 17 detects that the movable part 15 has moved relative to the car door 2b to a detection position closer to the base end than the tip position, The movable part 15 and the facing part 14c that faces each other in the first lateral direction D1 are provided, The movable part 15 contacts the opposite part 14c when the cage door 2b is in the closed position. This configuration is preferable.

[0060] With this configuration, when the cage door 2b is in the closed position, the movable part 15 is in contact with the opposite part 14c. This allows the movable part 15 to be moved to the detection position if the string Y1 becomes caught between the movable part 15 and the opposite part 14c.

[0061] [2] Furthermore, in the elevator car 2 of [1] described above, as in this embodiment, The movable part 15 is positioned at an intermediate position between the tip position and the detection position relative to the car door 2b when the car door 2b is in the closed position. This configuration is preferable.

[0062] With this configuration, when the cage door 2b is in the closed position, the movable part 15 moves to the detection position by moving only the distance between the intermediate position and the detection position. This ensures that the movable part 15 can be reliably moved to the detection position if the string Y1 becomes trapped between the movable part 15 and the opposing part 14c.

[0063] On the other hand, when the cage door 2b is moving between the open and closed positions, the movable part 15 moves to the detection position by moving only the distance between the tip position and the detection position. This prevents the movable part 15 from unnecessarily moving to the detection position when the cage door 2b is moving.

[0064] [3] Furthermore, in the elevator car 2 of [1] or [2] above, as in this embodiment, The aforementioned facing portion 14c is When the cage door 2b is in the closed position, the base portion 14d is positioned away from the movable portion 15, A separate component from the base portion 14d, which is fixed to the base portion 14d, comprises a movable contact portion 14e that contacts the movable portion 15 when the cage door 2b is in the closed position, This configuration is preferable.

[0065] With this configuration, the movable contact portion 14e is a separate part from the base portion 14d and is fixed to the base portion 14d. This allows the movable portion 15 to contact the movable contact portion 14e of the opposite portion 14c when the cage door 2b is in the closed position.

[0066] [4] Furthermore, one of the elevator cars 2 of [1] to [3] above may be, as in this embodiment, A cage sill 2f is provided, which is located below the movable part 15. The aforementioned movable part 15 is The movable main body 15a is connected to the cage door 2b by the connecting part 16, A separate component from the movable main body 15a, comprising a fixing portion 15b fixed to the lower end of the movable main body 15a, This configuration is preferable.

[0067] With this configuration, since the fixed part 15b is fixed to the lower end of the movable main body part 15a, the gap between the movable part 15 and the cage sill 2f can be reduced. As a result, when the string Y1 is positioned between the movable part 15 and the opposite part 14c, the string Y1 can be reliably hooked onto the tip 15c of the movable part 15.

[0068] [5] Furthermore, one of the elevator cars 2 of [1] to [4] above may be, as in this embodiment, A cage sill 2f is provided, which is located below the movable part 15. The lower end portion 15d of the movable portion 15 is formed inclined so as to extend upward from the tip portion 15c of the movable portion 15 toward the base portion 15e. This configuration is preferable.

[0069] With this configuration, the lower end portion 15d of the movable portion 15 is formed inclined so as to extend upward from the tip portion 15c of the movable portion 15 towards the base portion 15e. As a result, the gap between the lower end portion 15d of the movable portion 15 and the sill 2f increases from the tip portion 15c of the movable portion 15 towards the base portion 15e.

[0070] [6] Furthermore, elevator 1, as in this embodiment, The elevator car 2 is provided with one of the above [1] to [5], This configuration is preferable.

[0071] With this configuration, if the string Y1 becomes trapped between the movable part 15 and the opposing part 14c, the movable part 15 can be moved to the detection position.

[0072] [7] Furthermore, the method for manufacturing the elevator car 2 is as described in this embodiment. A method for manufacturing the elevator car 2 described in [3] above, This includes the step of fixing the movable contact portion 14e to the base portion 14d. This method is preferable.

[0073] According to this method, if the string Y1 becomes trapped between the movable part 15 and the opposing part 14c, the movable part 15 can be moved to the detection position.

[0074] It should be noted that the elevator 1, elevator car 2, and the method for manufacturing elevator car 2 are not limited to the configuration of the embodiment described above, nor are they limited to the effects described above. Furthermore, it goes without saying that the elevator 1, elevator car 2, and the method for manufacturing elevator car 2 can be modified in various ways without departing from the spirit of the present invention. For example, it goes without saying that one or more of the configurations and methods, etc., related to the various modification examples described below may be arbitrarily selected and adopted in the configurations and methods, etc., of the embodiment described above.

[0075] (A) In the elevator car 2 according to the above embodiment, when the car door 2b is in the closed position, the movable part 15 is positioned at an intermediate position between the tip position and the detection position relative to the car door 2b. However, the elevator car 2 is not limited to this configuration. For example, when the car door 2b is in the closed position, the movable part 15 may be positioned at the tip position relative to the car door 2b.

[0076] (B) In addition, in the elevator car 2 according to the above embodiment, the opposing portion 14c is configured to include a base portion 14d and a movable contact portion 14e, which are separate parts. However, the elevator car 2 is not limited to this configuration. For example, the opposing portion 14c may be configured to be a single part having a movable contact portion 14e.

[0077] (C) In addition, in the elevator car 2 according to the above embodiment, the movable part 15 is configured to include a movable main body part 15a and a fixed part 15b, which are separate components. However, the elevator car 2 is not limited to this configuration. For example, the movable part 15 may be configured to be made of a single component.

[0078] (D) In ​​addition, in the elevator car 2 according to the above embodiment, the tip of the fixed part 15b (the end of the closing direction D1a) is in the same position as the tip of the movable main body part 15a (the end of the closing direction D1a) in the first lateral direction D1. However, the elevator car 2 is not limited to this configuration.

[0079] For example, the tip of the fixed part 15b may be configured to protrude from the tip of the movable main body part 15a in the first lateral direction D1, that is, to be located on the closing direction D1a side of the tip of the movable main body part 15a. Alternatively, for example, the tip of the fixed part 15b may be configured to be recessed from the tip of the movable main body part 15a in the first lateral direction D1, that is, to be located on the opening direction D1b side of the tip of the movable main body part 15a.

[0080] (E) In addition, in the elevator car 2 according to the above embodiment, the lower end portion 15d of the movable portion 15 is formed to be inclined so as to go upward from the tip portion 15c of the movable portion 15 toward the base portion 15e. However, the elevator car 2 is not limited to this configuration.

[0081] For example, the lower end portion 15d of the movable portion 15 may be formed to be parallel to the cage sill 2f from the tip portion 15c to the base portion 15e of the movable portion 15. Alternatively, for example, the lower end portion 15d of the movable portion 15 may be formed to be inclined downward from the tip portion 15c to the base portion 15e of the movable portion 15.

[0082] (F) Furthermore, in the elevator car 2 according to the above embodiment, the connecting part 16 is configured to have links 16a that are rotatably connected to the car door 2b and the movable part 15, respectively, so that the movable part 15 moves upward relative to the car door 2b when the movable part 15 moves from the tip position toward the detection position (towards the opening direction D1b). However, the elevator car 2 is not limited to this configuration.

[0083] For example, the movable part 15 may be configured to move parallel to the first lateral direction (opening / closing direction) D1 relative to the cage door 2b. In such a configuration, although not particularly limited, for example, the connecting part 16 may be configured to include a roller rotatably connected to the movable part 15 and a guide rail fixed to the cage door 2b that guides the roller in the first lateral direction (opening / closing direction) D1.

[0084] (G) In the method of manufacturing the elevator car 2 according to the above embodiment, the movable contact part 14e is fixed to the base part 14d. However, the method of manufacturing the elevator car 2 is not limited to this method. For example, the additional part may be fixed to the tip of the movable main body part 15a. And when the car door 2b is in the closed position, the additional part may be in contact with the opposite part 14c (base part 14d).

[0085] (H) For example, the execution order of each step, such as the operation, procedure, step, and stage, in the method and apparatus shown in the claims, specification, and drawings can be carried out in any order, as long as the result of the previous step is not used in the later step. For example, even if "first," "next," etc. are used for convenience in the explanation, it does not mean that it is necessary to perform them in that order. [Explanation of symbols]

[0086] 1...Elevator, 2...Elevator car, 2a...Car room, 2b...Car door, 2c...Car opening, 2d...Door drive unit, 2e...Car control panel, 2f...Car sill, 2g...Car frame, 2h...Cover part, 2i...Suspension part, 2j...Roller, 2k...Guide, 3...Car drive unit, 3a...Sheave, 3b...Drive source, 3c...Braking unit, 4...Car rail, 5...Processing unit, 6...Car rope, 7...Counterweight, 8...Weight rail, 9...Landing opening, 10...Landing door, 11...Landing control panel, 12...Landing sill, 13...Landing opening frame, 13a...Landing door stopper, 13b...Buffer part, 14...Car opening frame, 1 4a... Car door stopper, 14b... Cushioning part, 14c... Opposite part, 14d... Base part, 14e... Movable stopper, 15... Movable part, 15a... Movable main body part, 15b... Fixed part, 15c... Tip part, 15d... Lower end, 15e... Base end, 16... Connection part, 16a... Link, 17... Detection part, 17a... Contact sensor, 18... Force application part, D1... First lateral direction (opening / closing direction), D1a... Closing direction, D1b... Opening direction, D2... Second lateral direction, D3... Up / down direction, F1... Force, W1... First distance, W2... Second distance, W3... Third distance, X1... Hoistway, X2... Machine room, X3... Landing, Y1... Cord

Claims

1. A method for manufacturing an elevator car, which involves manufacturing an elevator car from an existing elevator car, The elevator car is, A car cabin having an opening, A car door that can move between a closed position that closes the opening and an open position that opens the opening by moving in a first lateral direction relative to the car compartment, A movable part that can move in the first lateral direction relative to the aforementioned cage door, A connecting part is provided to connect the movable part to the front end of the cage door, such that the movable part is positioned at the front end of the cage door. A detection unit that detects that the movable part has moved relative to the cage door to a detection position closer to the base end than the tip position, The movable part and the facing part that faces the first lateral direction are provided, The movable part comes into contact with the opposite part when the cage door is in the closed position. The aforementioned facing section is, When the cage door is in the closed position, a base portion is positioned away from the movable part, A separate component from the base portion, which is fixed to the base portion and comprises a movable stopper that contacts the movable portion when the cage door is in the closed position, The method for manufacturing the elevator car includes the step of fixing the movable contact part to the base part of the existing elevator, In the aforementioned existing elevator car, the movable part separates from the opposite part when the car door is in the closed position. A method for manufacturing an elevator car, wherein the movable part is positioned at an intermediate position between the tip position and the detection position relative to the car door when the car door is in the closed position.

2. A cage sill is provided which is positioned below the aforementioned movable part, The aforementioned movable part is The movable main body is connected to the cage door by the aforementioned connecting part, The method for manufacturing an elevator car according to claim 1, comprising a fixing part which is a separate part from the movable main body and is fixed to the lower end of the movable main body.

3. A car cabin having an opening, A car door that can move between a closed position that closes the opening and an open position that opens the opening by moving in a first lateral direction relative to the car compartment, A movable part that can move in the first lateral direction relative to the aforementioned cage door, A connecting part is provided to connect the movable part to the front end of the cage door, such that the movable part is positioned at the front end of the cage door. A detection unit that detects that the movable part has moved relative to the cage door to a detection position closer to the base end than the tip position, The movable part and the facing part that faces the first lateral direction are provided, The movable part is an elevator car that comes into contact with the opposite side when the car door is in the closed position, A cage sill is provided which is positioned below the aforementioned movable part, The lower end of the movable part is formed in an inclined shape so as to extend upward from the tip to the base of the movable part, in an elevator car.

4. The aforementioned movable part is The movable main body is connected to the cage door by the aforementioned connecting part, The elevator car according to claim 3, comprising a fixing part which is a separate part from the movable main body and is fixed to the lower end of the movable main body.

5. An elevator comprising the elevator car described in claim 3 or 4.

6. A method for manufacturing an elevator, comprising the method for manufacturing an elevator car according to claim 1 or 2.

Citation Information

Patent Citations

  • elevator safety device

    JP1993095969U

  • Elevator device

    JP2004338903A

  • Failure detecting device for elevator and repair method for elevator device

    JP2007182303A

  • Cage door device for elevator

    JP2011116493A

  • Smoke shielding device and repairing method of elevator landing door device

    JP2013256351A