Elevator counterweight spacer attachment / detachment assist device

Abstract

To provide an elevator counterweight spacer attachment / detachment assist device capable of improving the work efficiency of adjusting the length of the counterweight spacer device.SOLUTION: An elevator counterweight spacer attachment / detachment assist device comprises a fixed member 4 fixed to a counterweight guide rail 1, and a base 5 provided on the fixed member 4. When the fixed member 4 is fixed to the counterweight guide rail 1, the counterweight spacer 301 is supported by the base 5.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an elevator counterweight spacer attachment / detachment assist device. [Background technology]

[0002] Conventionally, a counterweight spacer device is known that is attached to the lower end of a counterweight in an elevator. The counterweight spacer device has a plurality of counterweight spacers. The plurality of counterweight spacers are suspended in a stacked manner downward from the lower end of the counterweight. The length of the counterweight spacer device in the height direction is adjusted by increasing or decreasing the number of counterweight spacers. Adjusting the length of the counterweight spacer device adjusts the counter clearance, which is the dimension between the counterweight spacer device and a counterweight buffer attached below the counterweight spacer device (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-267537 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the configuration of the counterweight spacer device described in Patent Document 1, adjacent counterweight spacers in the vertical direction are connected to each other via bolts. Therefore, when removing the lowest counterweight spacer, for example, a worker needs to support the lowest counterweight spacer with his or her hand while removing the bolt from the lowest counterweight spacer. This has led to a problem of poor work efficiency when adjusting the length of the counterweight spacer device.

[0005] The present disclosure has been made to solve the above-mentioned problems, and its purpose is to provide an elevator counterweight spacer attachment / detachment assist device that can improve the work efficiency of adjusting the length of the counterweight spacer device. [Means for solving the problem]

[0006] The elevator counterweight spacer attachment / detachment assist device according to the present disclosure comprises a fixing member fixed to a counterweight guide rail and a base provided on the fixing member, and when the fixing member is fixed to the counterweight guide rail, the counterweight spacer is supported on the base. [Effects of the Invention]

[0007] According to the elevator counterweight spacer attachment / detachment assist device of the present disclosure, the work efficiency of adjusting the length of the counterweight spacer device can be improved. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a front view showing an elevator counterweight spacer attachment / detachment assist device according to a first embodiment. FIG. [Figure 2] 2 is a plan view showing a main part of the fixing member of FIG. 1. FIG. [Figure 3] FIG. 2 is a plan view showing the roller device of FIG. [Figure 4] 4 is a plan view showing a state in which the roller device of FIG. 3 is deformed. FIG. [Figure 5] FIG. 10 is a front view showing a fixing member of an elevator counterweight spacer attachment / detachment assisting device according to a second embodiment. [Figure 6] FIG. 6 is a plan view showing the fixing member of FIG. 5. [Figure 7] FIG. 11 is a front view showing an elevator counterweight spacer attaching / detaching device according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Embodiment 1 1 is a front view showing an elevator counterweight spacer attachment / detachment assist device according to embodiment 1. A pair of counterweight guide rails 1, a counterweight 2, and a counterweight spacer device 3 are provided in the elevator shaft.

[0010] The pair of counterweight guide rails 1 are arranged apart from each other in the horizontal direction. The pair of counterweight guide rails 1 are arranged parallel to each other. The pair of counterweight guide rails 1 are arranged so as to extend in the height direction.

[0011] The counterweight 2 is provided across the pair of counterweight guide rails 1. The counterweight 2 is guided by the pair of counterweight guide rails 1 and moves in the height direction.

[0012] The counterweight spacer device 3 is attached to the lower end of the counterweight 2. The counterweight spacer device 3 has a plurality of counterweight spacers 301 and a plurality of bolts 302.

[0013] A plurality of counterweight spacers 301 are suspended downward from the lower end of the counterweight 2 in a stacked manner. Two counterweight spacers 301 are shown in FIG. 1. The upper counterweight spacer 301 of the two counterweight spacers 301 is referred to as the first counterweight spacer 301A, and the lower counterweight spacer 301 is referred to as the second counterweight spacer 301B. The pair of counterweight spacers 301 stacked on top of each other are connected to each other via a plurality of bolts 302.

[0014] The bolts 302 are removed from the pair of counterweight spacers 301 stacked on top of each other, whereby the second counterweight spacer 301B is removed from the first counterweight spacer 301A.

[0015] On the other hand, bolts 302 are attached to the pair of counterweight spacers 301 stacked on top of each other, thereby attaching the second counterweight spacer 301B to the first counterweight spacer 301A.

[0016] The elevator counterweight spacer attachment / detachment assisting device according to the first embodiment includes a fixing member 4, a base 5, a guide member 6, and a scale 7.

[0017] The fixing member 4 has a pair of rail clips 401 and a fixed connecting portion 402. Each of the pair of rail clips 401 is fixed to a pair of counterweight guide rails 1. The fixed connecting portion 402 is provided across the pair of rail clips 401. Therefore, by fixing the pair of rail clips 401 to the pair of counterweight guide rails 1, the fixed connecting portion 402 is fixed to the pair of counterweight guide rails 1.

[0018] Fig. 2 is a plan view showing a main part of the fixing member 4 of Fig. 1. Fig. 2 shows one of a pair of rail clips 401. The pair of rail clips 401 have the same configuration. The rail clip 401 has a rail clip fixing portion 403, a rail clip main body 404, and a rail clip bolt 405.

[0019] The rail clip fixing portion 403 is fixed to the fixed connecting portion 402. The rail clip main body 404 is arranged so that the counterweight guide rail 1 is sandwiched between the rail clip fixing portion 403 and the rail clip main body 404. The rail clip main body 404 is fixed to the rail clip fixing portion 403 via a rail clip bolt 405.

[0020] With the counterweight guide rail 1 sandwiched between the rail clip fixing portion 403 and the rail clip main body 404, the rail clip 401 is fixed to the counterweight guide rail 1 by fixing the rail clip main body 404 to the rail clip fixing portion 403. By fixing the rail clip 401 to the counterweight guide rail 1, the fixing member 4 is fixed to the counterweight guide rail 1.

[0021] Releasing the fixation of the rail clip main body 404 to the rail clip fixing portion 403 releases the fixation of the rail clip 401 to the counterweight guide rail 1. Releasing the fixation of the rail clip 401 to the counterweight guide rail 1 releases the fixation of the fixing member 4 to the counterweight guide rail 1.

[0022] The base 5 has a base main body 501 and a base connecting portion 502. The counterweight spacer 301 located at the lowest end of the multiple counterweight spacers 301 is placed on the base main body 501 from above. In FIG. 1, the second counterweight spacer 301B is placed on the base main body 501.

[0023] The base main body 501 is fixed to the base connecting part 502. The base connecting part 502 is fixed to the fixed connecting part 402. Therefore, by fixing the fixing member 4 to the counterweight guide rail 1, the base 5 is fixed to the counterweight guide rail 1. On the other hand, by releasing the fixation of the fixing member 4 to the counterweight guide rail 1, the fixation of the base 5 to the counterweight guide rail 1 is released.

[0024] The guide member 6 has a pair of roller devices 601 and a guide connector 602. The pair of roller devices 601 are attached one to each of the pair of counterweight guide rails 1. The pair of roller devices 601 move in the height direction along the pair of counterweight guide rails 1. The guide connector 602 is provided across the pair of roller devices 601. Therefore, as the pair of roller devices 601 move along the pair of counterweight guide rails 1, the guide connector 602 moves in the height direction along the pair of counterweight guide rails 1.

[0025] The guide connecting portion 602 is fixed to the base connecting portion 502. Therefore, the guide member 6 is fixed to the fixed member 4 via the base 5. Note that the guide member 6 may also be configured to be fixed to the fixed member 4 without the base 5 being interposed therebetween.

[0026] Fig. 3 is a plan view showing the roller device 601 of Fig. 1. Fig. 4 is a plan view showing the roller device 601 of Fig. 3 in a deformed state. Figs. 3 and 4 show one roller device 601 of a pair of roller devices 601. The pair of roller devices 601 have the same configuration. The roller device 601 has a first roller 603, a first rotating shaft 604, a second roller 605, and a second rotating shaft 606.

[0027] The first roller 603 and the second roller 605 are rollers that roll on the counterweight guide rail 1 when the guide member 6 moves along the counterweight guide rail 1. The first roller 603 and the second roller 605 are arranged to sandwich the counterweight guide rail 1. The direction in which the first roller 603 and the second roller 605 sandwich the counterweight guide rail 1 is defined as the roller movement direction D1.

[0028] The first roller 603 is attached to a first rotating shaft 604. The first roller 603 rotates around the first rotating shaft 604. The first rotating shaft 604 is attached to the guide connecting part 602. The first rotating shaft 604 is movable relative to the guide connecting part 602 in a roller movement direction D1.

[0029] The second roller 605 is attached to a second rotation shaft 606. The second roller 605 rotates around the second rotation shaft 606. The second rotation shaft 606 is attached to the guide connector 602. The second rotation shaft 606 is movable relative to the guide connector 602 in the roller movement direction D1.

[0030] As the first rotating shaft 604 and the second rotating shaft 606 move in the roller movement direction D1 relative to the guide connecting part 602, the first roller 603 and the second roller 605 are displaced between a contact position and a separation position. When the first roller 603 and the second roller 605 are positioned at the contact position, the first roller 603 and the second roller 605 each come into contact with the counterweight guide rail 1. When the first roller 603 and the second roller 605 are positioned at the separation position, the first roller 603 and the second roller 605 each move away from the counterweight guide rail 1.

[0031] When the first roller 603 and the second roller 605 are in the contact position, the guide member 6 is able to move along the counterweight guide rail 1. This allows the guide member 6 to guide the base 5 along the counterweight guide rail 1.

[0032] The direction of rotation of the first roller 603 and the second roller 605 when they roll upward on the counterweight guide rail 1 is referred to as the forward direction, and the direction opposite to the forward direction is referred to as the reverse direction. The first roller 603 and the second roller 605 are fitted with a reverse rotation prevention latch (not shown). The first roller 603 and the second roller 605 are configured to be rotatable only in the forward direction and not in the reverse direction. Therefore, even when the fixed member 4 is not fixed to the counterweight guide rail 1, the base 5 is prevented from moving downward.

[0033] The memory 7 is fixed to the guide connector 602. The memory 7 extends upward from the guide connector 602. The upper end of the memory 7 is disposed above the base body 501.

[0034] Next, a procedure for attaching and detaching the counterweight spacer 301 using the counterweight spacer attachment / detachment assisting device will be described. First, a procedure for removing the counterweight spacer 301 will be described.

[0035] First, the worker positions the first roller 603 and the second roller 605 at the separated position, sandwiches the counterweight guide rail 1 between the first roller 603 and the second roller 605, and then positions the first roller 603 and the second roller 605 at the contact position. This attaches the guide member 6 to the counterweight guide rail 1.

[0036] Thereafter, the worker pushes the guide member 6 upward, causing the base 5 to move upward. The base main body 501 and the second counterweight spacer 301B come into contact with each other, and the second counterweight spacer 301B is placed on the base main body 501, causing the worker to stop the upward movement of the guide member 6.

[0037] Thereafter, the worker fixes the fixing member 4 to the counterweight guide rail 1. As a result, the base 5 is fixed to the counterweight guide rail 1.

[0038] Thereafter, the worker removes the bolts 302 from the pair of counterweight spacers 301 that are stacked on top of each other. As a result, the second counterweight spacer 301B is removed from the first counterweight spacer 301A. The removed second counterweight spacer 301B is supported by the base 5. Therefore, when removing the bolts 302 from the pair of counterweight spacers 301 that are stacked on top of each other, the worker does not need to support the counterweight spacer 301 with his or her hands.

[0039] Thereafter, the worker removes the second counterweight spacer 301B supported by the base 5 from the base 5. Thereafter, the worker releases the fixing of the fixing member 4 from the counterweight guide rail 1, positions the first roller 603 and the second roller 605 to the separated position, and removes the counterweight spacer attachment / detachment assist device from the counterweight guide rail 1. This completes the procedure for removing the counterweight spacer 301.

[0040] Next, we will explain the procedure for attaching the counterweight spacer 301. First, the worker attaches the guide member 6 to the counterweight guide rail 1. The procedure for attaching the guide member 6 to the counterweight guide rail 1 is the same as the procedure for attaching the guide member 6 to the counterweight guide rail 1 when removing the counterweight spacer 301.

[0041] Thereafter, the worker pushes the guide member 6 upward, causing the base 5 to move upward. When the distance between the base main body 501 and the counterweight spacer 301 becomes approximately the same as the thickness dimension of the counterweight spacer 301 to be added, the worker stops the upward movement of the guide member 6. The worker grasps the distance between the base main body 501 and the counterweight spacer 301 by visually checking the scale 7.

[0042] Thereafter, the worker fixes the fixing member 4 to the counterweight guide rail 1. As a result, the base 5 is fixed to the counterweight guide rail 1.

[0043] Thereafter, the worker places the counterweight spacer 301 to be added on the base body 501. In this way, the counterweight spacer 301 to be added is supported by the base 5. Therefore, when attaching the bolts 302 to the counterweight spacer 301 to be added and the existing counterweight spacer 301, the worker does not need to support the counterweight spacer 301 to be added with his or her hands.

[0044] Thereafter, bolts 302 are attached to the counterweight spacer 301 to be added and the existing counterweight spacer 301. In this way, the counterweight spacer 301 to be added is fixed to the existing counterweight spacer 301.

[0045] Thereafter, the worker releases the fixing member 4 from the counterweight guide rail 1, moves the first roller 603 and the second roller 605 to the separated position, and removes the counterweight spacer attachment / detachment assist device from the counterweight guide rail 1. This completes the procedure for attaching the counterweight spacer 301.

[0046] As described above, the elevator counterweight spacer attachment / detachment assisting device according to the first embodiment includes the fixing member 4 fixed to the counterweight guide rail 1 and the base 5 attached to the fixing member 4. When the fixing member 4 is fixed to the counterweight guide rail 1, the counterweight spacer 301 is supported by the base 5. With this configuration, when removing the counterweight spacer 301 at the lowest end, the bolt 302 can be removed from the counterweight spacer 301 at the lowest end without supporting the counterweight spacer 301 at the lowest end with one's hand. This improves the efficiency of the work involved in adjusting the length of the counterweight spacer device 3.

[0047] Moreover, in the elevator counterweight spacer attachment / detachment assist device according to the first embodiment, the fixing member 4 has a rail clip 401 that clamps the counterweight guide rail 1. The rail clip 401 clamps the counterweight guide rail 1, thereby fixing the fixing member 4 to the counterweight guide rail 1. This configuration allows the fixing member 4 to be fixed to the counterweight guide rail 1 with a simple structure.

[0048] Furthermore, the elevator counterweight spacer attachment / detachment assisting device according to the first embodiment includes a guide member 6 that guides the base 5 along the counterweight guide rail 1 when the fixing member 4 is not fixed to the counterweight guide rail 1. With this configuration, the base 5 can be moved along the counterweight guide rail 1.

[0049] Furthermore, in the elevator counterweight spacer attachment / detachment assist device according to the first embodiment, the guide member 6 has a first roller 603 and a second roller 605 that roll on the counterweight guide rail 1 when moving along the counterweight guide rail 1. This configuration allows the guide member 6 to move smoothly along the counterweight guide rail 1.

[0050] Embodiment 2 Fig. 5 is a front view showing a fixed member 4 of an elevator counterweight spacer attachment / detachment assist device according to embodiment 2. Fig. 6 is a plan view showing the fixed member 4 of Fig. 5. In the elevator counterweight spacer attachment / detachment assist device according to embodiment 2, the fixed member 4 has a pair of rail chucks 406 and a fixed connecting portion 402.

[0051] The pair of rail chucks 406 are fixed one by one to the pair of counterweight guide rails 1. The fixed connecting portion 402 is provided across the pair of rail chucks 406. Therefore, by fixing the pair of rail chucks 406 one by one to the pair of counterweight guide rails 1, the fixed connecting portion 402 is fixed to the pair of counterweight guide rails 1.

[0052] The pair of rail chucks 406 have the same configuration. Each rail chuck 406 has a rail chuck fixing portion 407 and a rail chuck rotator 408.

[0053] The rail chuck fixing part 407 is fixed to the fixed connecting part 402. The rail chuck rotator 408 is rotatably provided on the rail chuck fixing part 407. The rail chuck rotator 408 is arranged so that the counterweight guide rail 1 is sandwiched between the rail chuck fixing part 407 and the rail chuck rotator 408.

[0054] When the rail chuck rotator 408 rotates in one direction D2, the distance between the rail chuck fixing portion 407 and the rail chuck rotator 408 decreases. On the other hand, when the rail chuck rotator 408 rotates in the other direction D3, the distance between the rail chuck fixing portion 407 and the rail chuck rotator 408 increases. Therefore, when the rail chuck rotator 408 rotates in one direction D2 with the counterweight guide rail 1 sandwiched between the rail chuck fixing portion 407 and the rail chuck rotator 408, the rail chuck 406 is fixed to the counterweight guide rail 1. As a result, the fixing member 4 is fixed to the counterweight guide rail 1. When the rail chuck rotator 408 rotates in the other direction D3 with the fixing member 4 fixed to the counterweight guide rail 1, the fixing of the rail chuck 406 to the counterweight guide rail 1 is released. As a result, the fixing of the fixing member 4 to the counterweight guide rail 1 is released.

[0055] Other configurations of the elevator counterweight spacer attachment / detachment assist device according to the second embodiment are the same as those of the elevator counterweight spacer attachment / detachment assist device according to the first embodiment.

[0056] As described above, in the elevator counterweight spacer attachment / detachment assist device according to the second embodiment, the fixing member 4 has a rail chuck 406 that clamps the counterweight guide rail 1. The rail chuck 406 clamps the counterweight guide rail 1, thereby fixing the fixing member 4 to the counterweight guide rail 1. With this configuration, the fixing member 4 can be fixed to the counterweight guide rail 1 and the fixing of the fixing member 4 to the counterweight guide rail 1 can be released by a simple operation.

[0057] Embodiment 3 7 is a front view showing an elevator counterweight spacer attaching / detaching device according to embodiment 3. In the elevator counterweight spacer attaching / detaching device according to embodiment 3, a base 5 has a base main body 501, a base connecting part 502, and a jack part 503.

[0058] The counterweight spacer 301 located at the lowest end of the plurality of counterweight spacers 301 is placed on the base main body 501. The base main body 501 is supported by a jack portion 503. The jack portion 503 is supported by a base connecting portion 502. The base connecting portion 502 is fixed to the fixed connecting portion 402 and the guide connecting portion 602.

[0059] When the fixing member 4 is fixed to the counterweight guide rail 1, the base 5 is fixed to the counterweight guide rail 1. When the fixing member 4 is released from the counterweight guide rail 1, the base 5 is released from the counterweight guide rail 1.

[0060] By operating the jack portion 503, the base main body 501 moves in the height direction relative to the base connecting portion 502.

[0061] Other configurations of the elevator counterweight spacer attachment / detachment assist device according to embodiment 3 are the same as those of the elevator counterweight spacer attachment / detachment assist device according to embodiment 1. Note that, like the configuration of the elevator counterweight spacer attachment / detachment assist device according to embodiment 2, the fixing member 4 may be configured to have a rail chuck 406.

[0062] As described above, in the elevator counterweight spacer attachment / detachment assist device according to the third embodiment, the base 5 has the base main body 501 on which the counterweight spacer 301 is placed, and the jack unit 503 that moves the base main body 501 in the height direction relative to the fixed member 4. According to this configuration, by operating the jack unit 503, the counterweight spacer 301 placed on the base main body 501 can be moved in the height direction relative to the fixed member 4. This allows the counterweight spacer 301 to be attached or detached while moving the counterweight spacer 301 placed on the base main body 501 in the height direction.

[0063] While the elevator counterweight spacer attachment / detachment assist device according to each preferred embodiment has been described above, it is not limited to the elevator counterweight spacer attachment / detachment assist device according to each of the above-described embodiments. Various modifications and alterations can be made to the elevator counterweight spacer attachment / detachment assist device according to each of the above-described embodiments without departing from the scope of the claims.

[0064] Various aspects of the present disclosure are summarized below as appendices.

[0065] (Appendix 1) a fixing member fixed to the counterweight guide rail; a base provided on the fixing member; Equipped with An elevator counterweight spacer attachment / detachment assisting device in which a counterweight spacer is supported by the base when the fixing member is fixed to the counterweight guide rail. (Appendix 2) the fixing member has a rail clip that clamps the counterweight guide rail, The elevator counterweight spacer attachment / detachment assist device described in Appendix 1, wherein the rail clip clamps the counterweight guide rail, thereby fixing the fixing member to the counterweight guide rail. (Appendix 3) the fixing member has a rail chuck that clamps the counterweight guide rail, The elevator counterweight spacer attachment / detachment assist device described in Appendix 1, wherein the rail chuck clamps the counterweight guide rail, thereby fixing the fixing member to the counterweight guide rail. (Appendix 4) An elevator counterweight spacer attachment / detachment assist device as described in any one of appendixes 1 to 3, comprising a guide member that guides the base along the counterweight guide rail when the fixing member is not fixed to the counterweight guide rail. (Appendix 5) 5. An elevator counterweight spacer attachment / detachment assist device as described in Appendix 4, wherein the guide member has a roller that rolls on the counterweight guide rail when moving along the counterweight guide rail. (Appendix 6) An elevator counterweight spacer attachment / detachment assist device as described in any one of appendices 1 to 5, wherein the base has a base body on which the counterweight spacer is placed and a jack portion that moves the base body in the vertical direction relative to the fixed member. [Explanation of symbols]

[0066] 1 Guide rail for counterweight, 2 Counterweight, 3 Counterweight spacer device, 4 Fixing member, 5 Base, 6 Guide member, 7 Memory, 301 Counterweight spacer, 302 Bolt, 401 Rail clip, 402 Fixed connecting portion, 403 Rail clip fixing portion, 404 Rail clip main body, 405 Rail clip bolt, 406 Rail chuck, 407 Rail chuck fixing portion, 408 Rail chuck rotating body, 501 Base main body, 502 Base connecting portion, 503 Jack portion, 601 Roller device, 602 Guide connecting portion, 603 First roller, 604 First rotating shaft, 605 Second roller, 606 Second rotating shaft.

Claims

1. a fixing member fixed to the counterweight guide rail; a base provided on the fixing member; Equipped with An elevator counterweight spacer attachment / detachment assisting device in which a counterweight spacer is supported by the base when the fixing member is fixed to the counterweight guide rail.

2. the fixing member has a rail clip that clamps the counterweight guide rail, 2. The elevator counterweight spacer attachment / detachment assist device according to claim 1, wherein the rail clip clamps the counterweight guide rail, thereby fixing the fixing member to the counterweight guide rail.

3. the fixing member has a rail chuck that clamps the counterweight guide rail, 2. The elevator counterweight spacer attachment / detachment assist device according to claim 1, wherein the rail chuck clamps the counterweight guide rail, thereby fixing the fixing member to the counterweight guide rail.

4. 4. The elevator counterweight spacer attachment / detachment assist device according to claim 1, further comprising a guide member that guides the base along the counterweight guide rail when the fixing member is not fixed to the counterweight guide rail.

5. 5. The elevator counterweight spacer attachment / detachment assisting device according to claim 4, wherein said guide member has rollers that roll on said counterweight guide rails when said guide member moves along said counterweight guide rails.

6. 4. The elevator counterweight spacer attachment / detachment assist device according to claim 1, wherein the base comprises a base body on which the counterweight spacer is placed, and a jack portion for moving the base body in the vertical direction relative to the fixed member.

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