Tail cord protective device of elevator

The tail cord protection device addresses the inadequacy of existing protective measures by using a combination of supports, a protective wire mesh, and a protective body to prevent contact between the elevator tail cord and building column diaphragms, ensuring effective protection during seismic events and in constrained hoistway spaces.

JP2025097176AActive Publication Date: 2025-06-30TOSHIBA ELEVATOR KK
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
JP2023213314
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-18
Publication Date
2025-06-30
Estimated Expiration
2043-12-18

AI Technical Summary

Technical Problem

The existing protective wire mesh for elevator tail cords is inadequate in preventing contact with building column diaphragms, especially in smaller hoistway areas where columns are closer, and during seismic events when the tail cord shakes violently.

Method used

A tail cord protection device comprising a pair of supports extending across building columns from the guide rail, a protective wire mesh attached to these supports, and a protective body covering the diaphragm, which is supported by the pair of supports and extends vertically to cover the diaphragm from the side of the tail cord.

Benefits of technology

The solution effectively prevents the tail cord from contacting the diaphragm, even during significant shaking, by providing comprehensive protection between the tail cord and the building columns, thus ensuring the reliability and safety of elevator operations.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025097176000001_ABST
    Figure 2025097176000001_ABST
Patent Text Reader

Abstract

To provide a tail cord protective device of an elevator capable of preventing a tail cord from contacting the diaphragm of an architectural pillar installed in a hoistway.SOLUTION: A tail cord protective device of an elevator according to the present embodiment includes a pair of supporting bodies extending across an architectural pillar from a guide rail, the pair of supporting bodies being located inside the hoistway from the architectural pillar and positioned at different positions in the vertical direction, a rail clip that attaches each supporting body to the guide rail, a protective wire net attached to the pair of supporting bodies and arranged between the architectural pillar and a tail cord, and a protective body arranged on the side opposite to the guide rail with respect to the protective wire net, the protective body being arranged inside the hoistway from the architectural pillar and configured to cover the diaphragm. The protective body includes an upper end supported by one of the supporting bodies and a lower end supported by the other of the supporting bodies.SELECTED DRAWING: Figure 2
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] Embodiments of the present invention relate to a tail cord protection device for an elevator.

Background Art

[0002] A control panel provided in the machine room or hoistway of an elevator is connected by wiring to a relay box provided in the hoistway, and the relay box and the car are connected by a tail cord. The tail cord includes wiring for power supply purposes and wiring for transmitting control signals. In this way, power can be supplied from the control panel to the car, and control signals can be transmitted and received between the control panel and the car.

[0003] Since the tail cord hangs down from the car to the lower part of the hoistway, when the building shakes due to natural factors such as an earthquake or strong wind, the tail cord may also shake. In this case, it is conceivable that the tail cord may come into contact with structures installed in the hoistway and be damaged. To prevent this, a protective wire mesh for protecting the tail cord is provided.

[0004] However, depending on the behavior of the tail cord shaking, it may be difficult to protect the tail cord with the protective wire mesh. For example, when the tail cord shakes greatly so as to protrude from the protective wire mesh, the tail cord may come into contact with structures in the hoistway.

[0005] In a building, in order to secure floor areas such as offices, it is required to reduce the installation area of elevators. As a result, the area of the hoistway becomes smaller, and building columns may be arranged near the protective wire mesh described above. Inside the hoistway, a plurality of building columns are connected in the vertical direction, and a diaphragm that constitutes the joint between the building columns is formed so as to protrude from the building columns. When the diaphragm is arranged at a position not covered by the protective wire mesh, there is a concern that the tail cord may come into contact with the diaphragm. Although the diaphragm may be notched within a range where mechanical strength is not a problem, it is desirable to be able to protect the tail cord without notching the diaphragm.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] An embodiment aims to provide an elevator tail cord protection device that can prevent the tail cord from coming into contact with the diaphragm of a building column installed in a hoistway.

Means for Solving the Problems

[0008] The tail cord protection device for an elevator according to the embodiment is a device that protects the tail cord from a diaphragm that forms a joint between building columns extending parallel to a guide rail that guides the ascent and descent of a car provided in a hoistway. The tail cord protection device for an elevator includes a pair of supports extending across the building columns from the guide rail, the pair of supports being disposed inside the hoistway rather than the building columns and at different positions in the vertical direction, a rail clip that attaches the corresponding support to the guide rail, a protective wire mesh attached to the pair of supports, the protective wire mesh being disposed between the building column and the tail cord, and a protective body disposed on the side opposite to the guide rail with respect to the protective wire mesh, the protective body being disposed inside the hoistway rather than the building column and covering the diaphragm. The protective body includes an upper end portion supported by one support and a lower end portion supported by the other support.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0010] Hereinafter, with reference to the drawings, a tail cord protection device for an elevator in an embodiment of the present invention will be described. First, the elevator device according to the present embodiment will be described.

[0011] As shown in FIGS. 1(a) and 1(b), the elevator apparatus 1 includes a car 3 and a counterweight 4 disposed in a hoistway 2. The car 3 and the counterweight 4 are connected via a main rope 5. The main rope 5 is wound around a traction sheave 7 and a deflecting sheave 8 provided on a hoisting machine 6. By the hoisting machine 6 winding up the main rope 5, the car 3 moves up and down along a car guide rail 9, and the counterweight 4 moves up and down along a weight guide rail (not shown). The car guide rail 9 and the weight guide rail extend in the vertical direction. The hoisting machine 6 is installed in a machine room 10 provided above the hoistway 2. A control panel 11 is installed in the machine room 10. The control panel 11 is a device that controls the entire elevator apparatus 1 including the hoisting machine 6. For example, the control panel 11 controls the operation of the hoisting machine 6 in response to a landing call and a car call, and lands the car 3 at the landing of the floor where the call is registered.

[0012] Note that the elevator apparatus 1 is not limited to the form shown in FIGS. 1(a) and 1(b). For example, it may be a so-called machine-roomless elevator apparatus. That is, without providing the machine room 10, the hoisting machine 6 and the control panel 11 may be provided in the upper part of the hoistway 2 or the like. Also, instead of connecting the counterweight 4 to the main rope 5, the hoisting machine 6 may wind up or pay out the main rope 5 connected to the car 3. Even in this case, the hoisting machine 6 can move the car 3 up and down via the main rope 5. That is, the elevator apparatus 1 may be an elevator apparatus not provided with a counterweight 4.

[0013] The control panel 11 is connected to a relay box 12 provided in the hoistway 2 by a control wiring 13. The relay box 12 and the car 3 are connected by a tail cord 14. The tail cord 14 includes wiring for power supply purposes and wiring for transmitting control signals. In this way, power is supplied from the control panel 11 to the car 3, and transmission and reception of control signals are possible between the control panel 11 and the car 3. As shown in FIG. 1(a), the tail cord 14 hangs down from the car 3 to the lower part of the hoistway 2.

[0014] As shown in FIGS. 1(a) and 1(b), a plurality of building columns 15 are installed in the hoistway 2. In FIGS. 1(a) and 1(b), the building columns 15 are shown by two-dot chain lines for clarity of the drawing. The building columns 15 extend in the vertical direction and are parallel to the car guide rails 9 described above. The plurality of building columns 15 are connected in the vertical direction, and a diaphragm 16 is formed at the joint between the building columns 15. The diaphragm 16 is formed so as to protrude outward from the building column 15 and extend in the horizontal direction. More specifically, diaphragms are formed at the upper and lower ends of the building column 15, respectively, and the diaphragms of the vertically adjacent building columns 15 are fastened together with bolts or the like. For this reason, two diaphragms overlap at the joint between the building columns 15, but for convenience in this specification, the two diaphragms are collectively referred to as the diaphragm 16.

[0015] Next, the elevator tail cord protection device according to the present embodiment (hereinafter, simply referred to as the tail cord protection device 20) will be described. The tail cord protection device 20 is a device that protects the tail cord 14 from the diaphragm 16 that constitutes the joint between the building columns 15 extending parallel to the car guide rail 9 that guides the lifting of the car 3 provided in the hoistway 2.

[0016] As shown in FIG. 2, the tail cord protection device 20 includes a pair of supports 30, a rail clip 40, a protective wire mesh 50, and a protector 60.

[0017] The support 30 extends across the building column 15 from the cage guide rail 9. When viewed from the inside of the hoistway 2 towards the building column 15, the support 30 extends across the building column 15. The support 30 may extend horizontally. The support 30 is disposed inside the hoistway 2 rather than the building column 15. A pair of supports 30 are disposed at different positions in the vertical direction. One support 30 is disposed above the other support 30, and the pair of supports 30 are spaced apart in the vertical direction. The protection body 60 is supported by the pair of supports 30.

[0018] The support 30 includes an arm 31, a first bracket 32, and a second bracket 33. The two supports 30 may have the same structure.

[0019] The arm 31 is supported by the cage guide rail 9. The arm 31 is attached to the cage guide rail 9 by a rail clip 40. In this case, since holes for bolts B1 for attaching the arm 31 to the cage guide rail 9 are unnecessary, the arm 31 can be disposed at any position of the cage guide rail 9 in the vertical direction. The arm 31 extends horizontally from the cage guide rail 9 towards the building column 15. The arm 31 may be bent to prevent contact with the tail cord 14.

[0020] The first bracket 32 is supported by the arm 31. The first bracket 32 may sandwich the protective wire mesh 50 between it and the arm 31. In this case, the first bracket 32 may be fixed to the arm 31 via the protective wire mesh 50. The first bracket 32 extends horizontally from the arm 31 towards the building column 15. The first bracket 32 may extend horizontally beyond the building column 15. The first bracket 32 may be formed linearly and may not include a bent shape.

[0021] The second bracket 33 is disposed at the tip of the first bracket 32. The tip means the portion far from the car guide rail 9. The second bracket 33 is supported by the first bracket 32 and is attached to the first bracket 32. The second bracket 33 is interposed between the first bracket 32 corresponding to the upper end portion 61 of the protective body 60, and the second bracket 33 is also interposed between the first bracket 32 corresponding to the lower end portion 62 of the protective body 60.

[0022] The second bracket 33 may include an opposing surface 34. As shown in FIGS. 2 and 3, the opposing surface 34 faces the wall surface 2a of the hoistway 2 at a distance. The opposing surface 34 is located at the tip of the second bracket 33. More specifically, the second bracket 33 is bent in an L shape at the tip, thereby forming an opposing surface 34 that faces the wall surface 2a of the hoistway 2. The opposing surface 34 can contact the wall surface 2a of the hoistway 2 when the thermal expansion of the support 30 is large. The opposing surface 34 can contact the wall surface 2a of the hoistway 2 when the earthquake vibration is large.

[0023] As shown in FIG. 2, the rail clip 40 is configured to attach the arm 31 of the support 30 to the car guide rail 9. Each support 30 is attached to the car guide rail 9 by two rail clips 40. In FIG. 2, the illustration of the rail clip 40 located on the back side of the car guide rail 9 is omitted. The edge of the car guide rail 9 is sandwiched between the rail clip 40 and the arm 31, and the rail clip 40 and the arm 31 are fastened by a bolt B1. Due to the tightening force of the bolt B1, the rail clip 40 and the arm 31 are pressed against the car guide rail 9 and attached to the car guide rail 9. Since the bolt B1 does not penetrate the car guide rail 9, it is possible to prevent the vertical position of the support 30 from being restricted. It is possible to eliminate the need to form holes for the bolt B1 in the car guide rail 9.

[0024] The protective wire mesh 50 is attached to the pair of supports 30 described above. More specifically, the protective wire mesh 50 is sandwiched between the arm 31 and the first bracket 32. By fastening the arm 31 and the first bracket 32 with the bolt B2, the protective wire mesh 50 is pressed by the arm 31 and the first bracket 32 and fixed.

[0025] The protective wire mesh 50 is disposed between the building column 15 and the tail cord 14, preventing the tail cord 14 from contacting the structure within the hoistway 2 including the building column 15. The protective wire mesh 50 according to the present embodiment covers a part of the diaphragm 16 of the building column 15 described above. The protective wire mesh 50 may be formed to bulge toward the car 3 side inside the hoistway 2 in order to prevent interference with the diaphragm 16. The protective wire mesh 50 may extend in the vertical direction. A plurality of protective wire meshes 50 may be connected in the vertical direction. As shown in FIG. 1(b), the protective wire mesh 50 may be disposed in the lower half of the hoistway 2. Thereby, the protective wire mesh 50 can be disposed at a position where the tail cord 14 is likely to sway in the hoistway 2.

[0026] As shown in FIG. 2, the protector 60 is disposed on the side opposite to the car guide rail 9 with respect to the protective wire mesh 50. The protector 60 is disposed on the side of the wall surface 2a of the hoistway 2 rather than the protective wire mesh 50. The protector 60 is disposed inside the hoistway 2 rather than the building column 15 and on the car 3 side.

[0027] As shown in FIGS. 2 and 4, the protector 60 covers the diaphragm 16 from the inside of the hoistway 2. More specifically, the protector 60 covers the portion of the diaphragm 16 that is not covered by the protective wire mesh 50.

[0028] The protector 60 includes an upper end portion 61 and a lower end portion 62. The upper end portion 61 is supported by the support 30 disposed above. The lower end portion 62 is supported by the support 30 disposed below.

[0029] The protective body 60 may include a bulging portion 63. The bulging portion 63 is disposed between the upper end portion 61 and the lower end portion 62. The bulging portion 63 bulges toward the car 3 inside the lifting path 2 in order to prevent interference with the diaphragm 16.

[0030] As shown in FIGS. 2, 4, and 5, the upper end portion 61, the lower end portion 62, and the bulging portion 63 of the protective body 60 according to the present embodiment are integrally and continuously formed. The bulging portion 63 may be bent by bending a plate-like member by sheet metal working. The shape of the bulging portion 63 is arbitrary as long as interference with the diaphragm 16 can be prevented.

[0031] As shown in FIG. 2, the support 30 includes support elongated holes 35 extending in the lateral direction. A plurality of support elongated holes 35 may be formed in each of the supports 30. The support elongated holes 35 are holes into which bolts B3 for attaching the protective body 60 to the support 30 are inserted. In the present embodiment, two support elongated holes 35 are formed in each of the supports 30 and are arranged side by side in the lateral direction.

[0032] As shown in FIG. 5, the upper end portion 61 and the lower end portion 62 of the protective body 60 each include protective body elongated holes 64 extending in the vertical direction. A plurality of protective body elongated holes 64 may be formed in each of the upper end portion 61 and the lower end portion 62. The protective body elongated holes 64 are holes into which bolts B3 for attaching the protective body 60 to the support 30 are inserted. In the present embodiment, four protective body elongated holes 64 are formed in each of the upper end portion 61 and the lower end portion 62 and are arranged side by side in the lateral direction. Bolts B3 are inserted into two of the four protective body elongated holes 64.

[0033] As shown in FIGS. 2 and 3, the upper end portion 61 and the lower end portion 62 of the protective body 60 are respectively attached to the corresponding first bracket 32 and second bracket 33 using bolts B3. The bolt B3 for attaching the upper end portion 61 extends through the first bracket 32, the second bracket 33, and the upper end portion 61. Similarly, the bolt B3 for attaching the lower end portion 62 extends through the first bracket 32, the second bracket 33, and the lower end portion 62. The second bracket 33 includes a screw hole 36 into which the bolt B3 is screwed.

[0034] As shown in FIG. 5, the edge portion of the protective body 60 on the side of the protective wire mesh 50 may be covered by a protective sheet 70. The protective sheet 70 extends in the vertical direction and protects the edge portion of the protective body 60 on the side of the protective wire mesh 50 over the vertical direction. The protective sheet 70 is a sheet for protecting the tail cord 14 in contact with the edge portion of the protective body 60. The configuration of the protective sheet 70 is arbitrary as long as it can protect the tail cord 14. For example, the protective sheet 70 may include a stainless steel foil and an acrylic-based adhesive layer.

[0035] As shown in FIG. 4, a sound-absorbing sheet 80 may be attached to the back surface of the protective body 60. The sound-absorbing sheet 80 is a sheet for preventing the generation of a collision sound when the tail cord 14 contacts the protective body 60 and the protective body 60 contacts the diaphragm 16. The configuration of the sound-absorbing sheet 80 is arbitrary as long as it can prevent the generation of a collision sound. The sound-absorbing sheet 80 may include an aluminum foil and a rubber-based adhesive layer.

[0036] As shown in FIGS. 1(a) and 1(b), the tail cord protection device 20 according to the present embodiment may include a plurality of pairs of supports 30 and a plurality of protectors 60 that cover corresponding diaphragms 16 among a plurality of diaphragms 16 arranged at different positions in the vertical direction at the lower part of the hoistway 2. Each protector 60 may be supported by a corresponding pair of supports 30 on the cage guide rail 9. A plurality of diaphragms 16 located in the lower half of the hoistway 2 may be covered by corresponding protectors 60. As a result, a plurality of diaphragms 16 located at positions in the hoistway 2 where the tail cord 14 is likely to sway can be covered by the protectors 60. Therefore, the tail cord 14 can be effectively protected.

[0037] Thus, according to the present embodiment, a pair of supports 30 are attached to the cage guide rail 9 at different positions in the vertical direction by rail clips 40. A protector 60 is arranged on the side opposite to the cage guide rail 9 with respect to the protective wire net 50 attached to the pair of supports 30. The protector 60 is arranged inside the hoistway 2 rather than the building column 15 and covers the diaphragm 16. The protector 60 includes an upper end portion 61 supported by one support 30 and a lower end portion 62 supported by the other support 30. As a result, the protector 60 can cover the diaphragm 16 from the side of the tail cord 14. Therefore, even when the tail cord sways greatly so as to protrude from the protective wire net 50 due to natural factors such as an earthquake or strong wind, contact between the tail cord 14 and the diaphragm 16 can be prevented. As a result, contact between the tail cord 14 and the diaphragm 16 of the building column 15 installed in the hoistway 2 can be prevented.

[0038] Further, according to the present embodiment, the protector 60 includes an upper end portion 61 supported by one support 30 and a lower end portion 62 supported by the other support 30. As a result, the protector 60 can be supported by a pair of supports 30 arranged at different positions in the vertical direction. Therefore, the support of the protector 60 can be stabilized.

[0039] Further, according to the present embodiment, the pair of supports 30 that support the protector 60 are supported by the cage guide rail 9 by the rail clips 40. As a result, the position of the support 30 can be easily adjusted in the vertical direction. Therefore, the protector 60 can be easily positioned at a position covering the diaphragm 16. Further, at the installation site of the elevator device 1, the position of the diaphragm 16 can be confirmed and the position of the protector 60 can be adjusted, and the position of the protector 60 can be easily optimized.

[0040] Further, according to the present embodiment, the support 30 is a support elongated hole 35 extending in the lateral direction, and includes a support elongated hole 35 into which a bolt B3 for attaching the protector 60 to the support 30 is inserted. As a result, the lateral position of the protector 60 can be easily adjusted within the range of the support elongated hole 35. Therefore, the position of the protector 60 can be further optimized.

[0041] Further, according to the present embodiment, the protector 60 is a protector elongated hole 64 extending in the vertical direction, and includes a protector elongated hole 64 into which a bolt for attaching the protector 60 to the support 30 is inserted. As a result, the vertical position of the protector 60 can be easily adjusted within the range of the protector elongated hole 64. Therefore, the position of the protector 60 can be further optimized.

[0042] Further, according to the present embodiment, the support 30 includes an opposing surface 34 that faces the wall surface 2a of the hoistway 2 while being spaced apart therefrom. As a result, when the thermal expansion of the support 30 is large, the opposing surface 34 can contact the wall surface 2a of the hoistway 2. Further, even when the shaking of the earthquake is large, the opposing surface 34 can contact the wall surface 2a of the hoistway 2. Therefore, damage or deformation of the tail cable protection device 20 can be prevented.

[0043] Further, according to the present embodiment, a second bracket 33 is interposed between the upper end portion 61 of the protector 60 and the first bracket 32 of the support 30 corresponding thereto, and between the lower end portion 62 of the protector 60 and the first bracket 32 of the support 30 corresponding thereto. The upper end portion 61 and the lower end portion 62 are attached to the corresponding first bracket 32 and second bracket 33 using bolts B3, and the second bracket 33 includes a screw hole 36 into which the bolt B3 is screwed. Thus, even when the second bracket 33 is interposed between the protector 60 and the corresponding first bracket 32, since the bolt B3 is screwed into the screw hole 36 of the second bracket 33, it is possible to prevent the second bracket 33 from being displaced after the bolts are fastened. Therefore, the reliability of the tail cord protection device 20 can be improved. For example, the second bracket 33 with the opposing surfaces 34 aligned can be fastened to the first bracket 32 with bolts B3, and then the upper end portion 61 or the lower end portion 62 of the protector 60 can be fastened to the second bracket 33 using a nut N (see FIG. 3) or the like. Even in this case, since the bolt B3 is screwed into the screw hole 36 of the second bracket 33, it is possible to prevent the second bracket 33 from being displaced when the upper end portion 61 or the lower end portion 62 of the protector 60 is fastened to the second bracket 33.

[0044] Further, according to the present embodiment, the protector 60 includes a bulging portion 63 that bulges toward the inside of the hoistway 2. This can prevent the protector 60 from interfering with the diaphragm 16. Therefore, even when the installation area of the elevator is limited, it is possible to form the protector 60 that covers the diaphragm 16, and it is possible to prevent the tail cord 14 from contacting the diaphragm 16.

[0045] Further, according to the present embodiment, the upper end portion 61, the lower end portion 62, and the bulging portion 63 of the protector 60 are integrally formed. This allows the protector 60 to be configured as a single part, reducing the number of parts. Therefore, the assembly workability of the tail cord protection device 20 can be improved.

[0046] Also, according to the present embodiment, the edge portion of the protective body 60 on the side of the protective wire mesh 50 is covered with the protective sheet 70. This makes it possible to protect the tail cord 14 even when the tail cord 14 comes into contact with the edge portion of the protective body 60. Therefore, the reliability of the tail cord protection device 20 can be improved.

[0047] In the above-described present embodiment, an example in which the upper end portion 61, the lower end portion 62, and the bulging portion 63 of the protective body 60 are integrally formed has been described. However, the present embodiment is not limited to this. For example, as shown in FIG. 6, the bulging portion 63 of the protective body 60 may be detachably attached to each of the upper end portion 61 and the lower end portion 62.

[0048] In the example shown in FIG. 6, the upper end portion 61, the lower end portion 62, and the bulging portion 63 of the protective body 60 are constituted by separate parts. The upper end portion 61 and the bulging portion 63 are attached with bolts B4, and the lower end portion 62 and the bulging portion 63 are attached with bolts B4.

[0049] The bulging portion 63 may include a first bulging member 65 and a pair of second bulging members 66. The first bulging member 65 may be disposed at the center of the protective body 60 in the vertical direction. The second bulging members 66 are respectively disposed above and below the first bulging member 65. One of the second bulging members 66 is disposed between the first bulging member 65 and the upper end portion 61, and the other second bulging member 66 is disposed between the first bulging member 65 and the lower end portion 62. The first bulging member 65 is an overall flat plate-shaped member, and the second bulging member 66 may be bent by bending a plate-shaped member by sheet metal working. The first bulging member 65 and each of the second bulging members 66 are detachably attached with bolts B3.

[0050] The bulging part 63 may further include a pair of third bulging members 67. One of the third bulging members 67 is disposed above the second bulging member 66 disposed above, and the other third bulging member 67 is disposed below the second bulging member 66 disposed below. The third bulging member 67 may be bent by bending a plate-shaped member by sheet metal working. The third bulging member 67 disposed above is attached to the upper end portion 61 and the corresponding second bulging member 66 with bolts B3. The third bulging member 67 disposed below is removably attached to the lower end portion 62 and the corresponding second bulging member 66 with bolts B3.

[0051] As shown in FIG. 6 in this way, since the bulging part 63 is removably attached to each of the upper end portion 61 and the lower end portion 62, the protective body 60 can be divided into a plurality of parts. Thereby, the part size can be reduced and the weight can be reduced, and the handleability can be improved.

[0052] Further, the bulging part 63 includes the first bulging member 65 and a pair of second bulging members 66, and the first bulging member 65 and each second bulging member 66 are removably attached. Thereby, the bulging part 63 can be divided into a plurality of parts. Thereby, the part size can be further reduced and the weight can be further reduced, and the handleability can be further improved.

[0053] According to the embodiment described above, contact between the tail cord 14 and the diaphragm 16 of the building column 15 installed in the hoistway 2 can be prevented.

Description of Reference Numerals

[0054] 1: Elevator device, 2: Hoistway, 3: Car, 9: Car guide rail, 14: Tail cable, 15: Building column, 16: Diaphragm, 20: Tail cable protection device, 30: Support, 31: Arm, 32: First bracket, 33: Second bracket, 34: Opposing surface, 35: Support elongated hole, 36: Screw hole, 40: Rail clip, 50: Protective wire mesh, 60: Protector, 61: Upper end portion, 62: Lower end portion, 63: Bulging portion, 64: Protector elongated hole, 65: First bulging member, 66: Second bulging member, 70: Protective sheet, B3: Bolt

Claims

1. An elevator tail cord protection device for protecting a tail cord from a diaphragm constituting a joint between building columns extending parallel to a guide rail for guiding the elevation of a car provided in an elevator shaft, A pair of supports extending across the building columns from the guide rail, the pair of supports being disposed inside the elevator shaft rather than the building columns and at different positions in the vertical direction, A rail clip for attaching the corresponding support to the guide rail, A protective wire mesh attached to the pair of supports, the protective wire mesh being disposed between the building column and the tail cord, A protector disposed on the side opposite to the guide rail with respect to the protective wire mesh, the protector being disposed inside the elevator shaft rather than the building column and covering the diaphragm, Comprising, The protector includes an upper end portion supported by one of the supports and a lower end portion supported by the other support, An elevator tail cord protection device.

2. The support is a support elongated hole extending in the lateral direction, and includes a support elongated hole into which a bolt for attaching the protector to the support is inserted, The elevator tail cord protection device according to claim 1.

3. The upper end portion and the lower end portion of the protector are protector elongated holes extending in the vertical direction, and include protector elongated holes into which bolts for attaching the protector to the support are inserted, The elevator tail cord protection device according to claim 1.

4. The support includes opposing surfaces that are spaced apart and opposed to the wall surface of the elevator shaft, The elevator tail cord protection device according to any one of claims 1 to 3.

5. The support includes an arm supported by the guide rail, a first bracket supported by the arm, the first bracket sandwiching the protective wire mesh therebetween, and a second bracket disposed at a tip of the first bracket, The second bracket is interposed between the upper end portion of the protector and the corresponding first bracket and between the lower end portion of the protector and the corresponding first bracket, The upper end portion and the lower end portion of the protector are attached to the corresponding first bracket and the second bracket using bolts, The second bracket includes a screw hole into which the bolt is screwed, The tail code protection device for an elevator according to any one of claims 1 to 3.

6. The protective body includes a bulging portion disposed between the upper end portion and the lower end portion, The bulging portion bulges toward the inside of the hoistway. The tail code protection device for an elevator according to any one of claims 1 to 3.

7. The upper end portion, the bulging portion, and the lower end portion of the protective body are integrally formed. The tail code protection device for an elevator according to claim 6.

8. The bulging portion is removably attached to the upper end portion and the lower end portion. The tail code protection device for an elevator according to claim 6.

9. The bulging portion includes a first bulging member and a pair of second bulging members. One of the second bulging members is disposed between the first bulging member and the upper end portion. The other second bulging member is disposed between the first bulging member and the lower end portion. The first bulging member is removably attached to each of the second bulging members. The tail code protection device for an elevator according to claim 8.

10. A protective sheet covering an edge portion on the side of the protective wire mesh of the protective body The tail code protection device for an elevator according to any one of claims 1 to 3, further comprising.

11. A plurality of pairs of the support bodies, A plurality of the protective bodies covering corresponding ones of the plurality of diaphragms disposed at different positions in the vertical direction in the lower part of the hoistway, Comprising, The protective body is supported by a corresponding pair of the support bodies. The tail code protection device for an elevator according to any one of claims 1 to 3.

Citation Information

Patent Citations

  • Moving cable protective device for elevator

    JP1998167618A