WO2023233518A1

WO2023233518A1 - Elevator door device and maintenance method for elevator door device

Info

Publication number: WO2023233518A1
Application number: PCT/JP2022/022120
Authority: WO
Inventors: 雅大天野
Original assignee: 三菱電機株式会社
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2023-12-07

Abstract

This elevator door device comprises: a door that performs opening and closing operations along a threshold groove; a first door shoe positioned in the threshold groove; a first attachment plate provided so as to protrude from the first door shoe and secured to the door; and a second door shoe positioned on one side of the first door shoe of the threshold groove in the extension direction of the threshold groove and secured to the first attachment plate.

Description

Elevator door device and maintenance method for elevator door device

The present disclosure relates to an elevator door device and a method of maintaining the elevator door device.

Patent Document 1 discloses a guide device for an elevator sliding door. This guide device has a mounting bracket and two sliders. The mount includes an upper mount and a lower mount that is twisted relative to the upper mount. The upper mounting part is attached to the elevator sliding door with bolts. The two sliders are provided so as to slidably sandwich the lower mounting portion. Each slider has a rectangular sliding surface that contacts the sliding surface of the guide groove.

Microfilm of Utility Application No. 58-77914 (Utility Application No. 59-182581)

When the above-mentioned elevator sliding door is repeatedly opened and closed, the function of the guide device deteriorates due to wear of the slider. For this reason, guide devices are typically replaced periodically.

However, since the guide device is installed near the floor surface, it is easily affected by moisture such as rainwater. Therefore, depending on the environment in which the elevator is installed, it may be difficult to remove the existing guide device due to rust on the bolts or the like. In this case, since it becomes difficult to replace the guide device, there is a problem that maintenance of the elevator door device becomes difficult.

The present disclosure has been made to solve the above-mentioned problems, and aims to provide an elevator door device that can be easily maintained, and a method for maintaining the elevator door device.

An elevator door device according to the present disclosure includes a door that opens and closes along a sill groove, a first door shoe disposed in the sill groove, and a first door shoe provided protruding from the first door shoe and fixed to the door. and a second door shoe disposed on one side of the first door shoe in the extending direction of the sill groove among the sill grooves and fixed to the first attachment plate.
A maintenance method for an elevator door device according to the present disclosure includes: a door that opens and closes along a sill groove; a first door shoe disposed in the sill groove; and a door provided protruding from the first door shoe and fixed to the door. a second door shoe disposed on one side of the first door shoe in the extending direction of the sill groove among the sill grooves; It is fixed to the first mounting plate.

According to the present disclosure, maintenance of the elevator door device can be easily performed.

1 is a front view showing a schematic configuration of an elevator door device according to Embodiment 1. FIG. 1 is a side view showing a schematic configuration of an elevator door device according to Embodiment 1. FIG. FIG. 2 is a top view showing the configuration of the guide device of the elevator door device according to the first embodiment. 1 is a side view showing the configuration of a guide device of an elevator door device according to Embodiment 1. FIG. FIG. 3 is a top view showing the configuration of a second door shoe and a third door shoe of the elevator door device according to the first embodiment. FIG. 3 is a top view showing the configuration of a fixing member of the elevator door device according to the first embodiment. FIG. 7 is a top view showing the configuration of a guide device of an elevator door device according to a second embodiment. FIG. 7 is a top view showing the configuration of a second door shoe of the elevator door device according to the second embodiment. FIG. 7 is a schematic diagram illustrating an example of a procedure for attaching a second door shoe and a third door shoe in the elevator door device maintenance method according to the second embodiment. FIG. 7 is a top view showing the configuration of a guide device of an elevator door device according to Embodiment 3; FIG. 7 is a perspective view showing the configuration of a fixing member of an elevator door device according to Embodiment 3; FIG. 7 is a perspective view showing the configuration of a fixing member of an elevator door device according to Embodiment 3; FIG. 7 is a schematic diagram showing an example of a procedure for attaching a second door shoe and a third door shoe in the elevator door device maintenance method according to Embodiment 3;

Embodiment 1.
An elevator door device and a maintenance method for the elevator door device according to Embodiment 1 will be described. FIG. 1 is a front view showing a schematic configuration of an elevator door device according to the present embodiment. FIG. 2 is a side view showing a schematic configuration of the elevator door device according to the present embodiment. In this embodiment, a car door is illustrated as the door of the elevator door device. A car door is provided in the elevator car room. The vertical direction in FIGS. 1 and 2 represents the vertical vertical direction. FIG. 1 shows the configuration of a car door viewed from the landing side.

As shown in FIG. 1, a first car door 10a and a second car door 10b are provided at the front of the car. The first car door 10a and the second car door 10b open and close the car entrance 20 by sliding horizontally in opposite directions.

A car door frame 21 is fixed above the car entrance 20. The car door frame 21 is fixed to the car room. The car door frame 21 is provided with a car door rail (not shown). The car door rail is arranged horizontally and parallel to the width direction of the car entrance 20.

A car door hanger (not shown) is fixed to the upper part of each of the first car door 10a and the second car door 10b. Each of the first car door 10a and the second car door 10b is suspended from the car door rail by a car door hanger. Each of the first car door 10a and the second car door 10b performs an opening/closing operation along the car door rail.

A threshold 22 is provided below the first car door 10a and the second car door 10b. The threshold 22 is fixed to the cage. A sill groove 22a is formed on the upper surface of the sill 22. The sill groove 22a extends horizontally and parallel to the width direction of the car entrance 20.

A guide device 30 is provided at the bottom of each of the first car door 10a and the second car door 10b. In this embodiment, two guide devices 30 are provided for each of the first car door 10a and the second car door 10b. Each guide device 30 is configured to be guided by the sill groove 22a. Thereby, each of the first car door 10a and the second car door 10b performs an opening/closing operation along the sill groove 22a.

The configuration of each guide device 30 will be explained using one guide device 30 provided in the first car door 10a as an example. FIG. 3 is a top view showing the configuration of the guide device of the elevator door device according to the present embodiment. FIG. 4 is a side view showing the configuration of the guide device of the elevator door device according to the present embodiment. The left-right direction in FIG. 3 represents the extending direction of the sill groove 22a.

As shown in FIGS. 3 and 4, the guide device 30 includes a first door shoe 31, a second door shoe 32, a third door shoe 33, a first mounting plate 41, and a second mounting plate 42. In this embodiment, the first door shoe 31 and the first mounting plate 41 are already attached, for example, when the elevator door device is installed. In this embodiment, the second door shoe 32, the third door shoe 33, and the second mounting plate 42 are newly installed during maintenance of the elevator door device. That is, the second door shoe 32, the third door shoe 33, and the second attachment plate 42 are attached later than the first door shoe 31 and the first attachment plate 41.

The first door shoe 31 is arranged inside the sill groove 22a. At least a portion of the first door shoe 31 that can come into contact with the sill groove 22a is made of a soft material such as rubber. The first door shoe 31 is worn due to the opening and closing operations of the first car door 10a before the second door shoe 32 and the third door shoe 33 are attached. When the wear of the first door shoe 31 is greater than the wear of the second door shoe 32 and the third door shoe 33, the first door shoe 31 does not necessarily slide with respect to the sill groove 22a.

The first mounting plate 41 projects upward from the first door shoe 31. The first mounting plate 41 is fixed to the first door shoe 31. The first mounting plate 41 is a mounting bracket for mounting the first door shoe 31 to the first car door 10a. The first mounting plate 41 has a rectangular flat plate shape. The first mounting plate 41 is arranged along the extending direction of the sill groove 22a and the vertical vertical direction. The width of the first mounting plate 41 in the extending direction of the sill groove 22a is narrower than the width of the first door shoe 31 in the same direction.

The first car door 10a has a top plate 11 and a reinforcing member 12 that reinforces the top plate 11. The surface of the top plate 11 becomes the design surface of the first car door 10a. The reinforcing member 12 is provided on the non-design surface side with respect to the top plate 11. The first mounting plate 41 is fixed to the reinforcing member 12 by a fastening member. The fastening member includes a bolt 13 and a nut 14.

FIG. 5 is a top view showing the configuration of the second door shoe and the third door shoe of the elevator door device according to the present embodiment. The left-right direction in FIG. 5 represents the extending direction of the sill groove 22a. As shown in FIG. 5, the second door shoe 32 and the third door shoe 33 are arranged apart from each other. The distance between the second door shoe 32 and the third door shoe 33 is greater than or equal to the width of the first door shoe 31 in the extending direction of the sill groove 22a. The second door shoe 32 and the third door shoe 33 are connected to each other by a second mounting plate 42. Thereby, the second door shoe 32, the third door shoe 33, and the second mounting plate 42 are integrated.

The second door shoe 32 and the third door shoe 33 are arranged inside the sill groove 22a. The second door shoe 32 and the third door shoe 33 are arranged on both sides of the first door shoe 31 in the extending direction of the sill groove 22a. That is, the second door shoe 32 is arranged at a position shifted to one side from the first door shoe 31 in the extending direction of the sill groove 22a. The third door shoe 33 is arranged at a position shifted from the first door shoe 31 to the other side in the extending direction of the sill groove 22a. The first door shoe 31 is sandwiched between the second door shoe 32 and the third door shoe 33 in the extending direction of the sill groove 22a.

The second door shoe 32 and the third door shoe 33 are each configured to slide in the sill groove 22a as the first car door 10a opens and closes. In each of the second door shoe 32 and the third door shoe 33, at least the portion that contacts the sill groove 22a is formed of a soft material such as rubber. For example, the wear occurring on each of the second door shoe 32 and the third door shoe 33 is less than the wear occurring on the first door shoe 31.

The second mounting plate 42 is fixed to both the second door shoe 32 and the third door shoe 33. The second mounting plate 42 is a mounting bracket for mounting the second door shoe 32 and the third door shoe 33 to the first car door 10a. The second mounting plate 42 has a rectangular flat plate shape. The longitudinal direction of the second mounting plate 42 is parallel to the extending direction of the sill groove 22a. One longitudinal end of the second mounting plate 42 is fixed to the second door shoe 32. The other end of the second mounting plate 42 in the longitudinal direction is fixed to the third door shoe 33.

The second mounting plate 42 is arranged to face the first mounting plate 41. The second mounting plate 42 is arranged on the non-design surface side with respect to the first mounting plate 41. When viewed in a direction perpendicular to the surface of the first mounting plate 41, the second mounting plate 42 is arranged to overlap with the first mounting plate 41. The second mounting plate 42 is fixed to the first mounting plate 41 using a fixing member 50.

Two through

holes

42a and 42b are formed in the second mounting plate 42. The through holes 42a and the through holes 42b are arranged in parallel along the longitudinal direction of the second mounting plate 42.

A shock absorbing member 42c is provided in a portion of the second mounting plate 42 that faces the first mounting plate 41. The second mounting plate 42 faces the first mounting plate 41 with the shock absorbing member 42c in between. This reduces noise caused by contact between the second mounting plate 42 and the first mounting plate 41.

Furthermore, a shock absorbing member 42d is provided in a portion of the second mounting plate 42 that faces a connecting portion 50c of a fixing member 50, which will be described later. The shock absorbing member 42c and the shock absorbing member 42d are made of rubber or the like. Both the shock absorbing member 42c and the shock absorbing member 42d are arranged between the through hole 42a and the through hole 42b.

FIG. 6 is a top view showing the configuration of the fixing member of the elevator door device according to the present embodiment. As shown in FIG. 6, the fixing member 50 has a pair of

arm portions

50a, 50b and a connecting portion 50c. The connecting portion 50c connects the bases of the arm portion 50a and the arm portion 50b. Arm portion 50a and arm portion 50b extend parallel to each other. The connecting portion 50c extends perpendicularly to the

arm portions

50a and 50b. The distance between the

arm portions

50a and 50b is greater than or equal to the width of the first mounting plate 41 in the extending direction of the sill groove 22a. The fixing member 50 is made of metal, for example.

A claw portion 50a1 is formed at the tip of the arm portion 50a. The claw portion 50a1 protrudes from the arm portion 50a in the direction toward the arm portion 50b. A claw portion 50b1 is formed at the tip of the arm portion 50b. The claw portion 50b1 protrudes from the arm portion 50b in the direction toward the arm portion 50a. The distance between the claw portion 50a1 and the claw portion 50b1 is narrower than the width of the first mounting plate 41 in the extending direction of the sill groove 22a.

A shock absorbing member 50d is provided in a portion of the connecting portion 50c that faces the second mounting plate 42. The shock absorbing member 50d is made of rubber or the like. The connecting portion 50c faces the second mounting plate 42 with the shock absorbing member 50d and the shock absorbing member 42d interposed therebetween. This reduces noise caused by contact between the connecting portion 50c and the second mounting plate 42.

The fixing member 50 is attached to the first mounting plate 41 and the second mounting plate 42 from the second mounting plate 42 side. The arm portion 50a is passed through the through hole 42a of the second mounting plate 42. The claw portion 50a1 is hooked onto one side end 41a of the first mounting plate 41. The arm portion 50b is passed through the through hole 42b. The claw portion 50b1 is hooked onto the other side end portion 41b of the first mounting plate 41.

The shock absorbing member 42c is compressed between the second mounting plate 42 and the first mounting plate 41. The shock absorbing member 42d and the shock absorbing member 50d are compressed between the connecting portion 50c of the fixing member 50 and the second mounting plate 42. The second mounting plate 42 is fixed to the first mounting plate 41 without wobbling due to the elastic restoring forces of the shock absorbing member 42c, the shock absorbing member 42d, and the shock absorbing member 50d.

Next, a method for maintaining the elevator door device according to the present embodiment will be described. In this embodiment, a first door shoe 31 and a first mounting plate 41 are provided as the guide device 30 on the first car door 10a before maintenance. The second door shoe 32, the third door shoe 33, and the second mounting plate 42 are not provided on the first car door 10a before maintenance.

If the opening and closing operations of the first car door 10a are repeated, the first door shoe 31 will wear out, and the function of the guide device 30 will deteriorate. In a typical maintenance method for elevator door systems, the door shoe is replaced periodically to maintain the functionality of the guide system. That is, in a typical maintenance method for elevator door systems, the existing door shoe is removed and a new door shoe is installed.

In contrast, in the elevator door device maintenance method according to the present embodiment, a new second door shoe 32 and a new third door shoe are installed while the existing first door shoe 31 and the existing first mounting plate 41 are attached. 33 and a new second mounting plate 42 are attached to the first car door 10a.

Specifically, the new second mounting plate 42 is attached to the existing first mounting plate 41. At this time, the second mounting plate 42 and the first mounting plate 41 are opposed to each other with the shock absorbing member 42c in between, and the second mounting plate 42 and the first mounting plate 41 are fixed to each other using the fixing member 50. Thereby, the new second door shoe 32 and the new third door shoe 33 are attached to the first car door 10a. The first car door 10a after maintenance is provided with a mixture of the existing first door shoe 31 and the new second door shoe 32 and third door shoe 33.

In this way, in this embodiment, the new second door shoe 32, the new third door shoe 33, and A new second mounting plate 42 is attached to the first car door 10a. Therefore, for example, even if it becomes difficult to remove the first door shoe 31 and the first mounting plate 41 due to rust on the fastening members, a new second door shoe 32 and a new third door shoe 33 can be replaced. 1 can be attached to the car door 10a. The functionality of the guide device 30 is maintained by a second door shoe 32 and a third door shoe 33.

The second door shoe 32 and the third door shoe 33 are fixed to the first mounting plate 41 via the second mounting plate 42. Therefore, when the second door shoe 32 and the third door shoe 33 are attached to the first car door 10a, there is no need to perform additional processing on the first car door 10a.

Note that in this embodiment, the second door shoe 32 and the third door shoe 33 are provided as the new door shoe, but only the second door shoe 32 may be provided as the new door shoe. That is, only the second door shoe 32 may be fixed to the second mounting plate 42. In this case, the second door shoe 32 may be placed on the front side of the first door shoe 31 when the first car door 10a is opened, or the second door shoe 32 may be placed on the front side of the first door shoe 31 when the first car door 10a is closed. It may be placed on the front side.

As explained above, the elevator door device according to the present embodiment includes the first car door 10a, the first door shoe 31, the first mounting plate 41, and the second door shoe 32. The first car door 10a is configured to open and close along the sill groove 22a. The first door shoe 31 is arranged in the sill groove 22a. The first mounting plate 41 is provided to protrude from the first door shoe 31. The first mounting plate 41 is fixed to the first car door 10a.

The second door shoe 32 is disposed on one side of the first door shoe 31 in the sill groove 22a in the extending direction of the sill groove 22a. The second door shoe 32 is fixed to the first mounting plate 41. Here, the first car door 10a is an example of a door.

According to this configuration, when the first door shoe 31 becomes worn, the second door shoe 32 can be attached to the first car door 10a without removing the first door shoe 31. Therefore, even if it becomes difficult to remove the first door shoe 31 due to rust on the fastening member, etc., the function of the guide device can be maintained by the second door shoe 32. Therefore, maintenance of the elevator door device can be easily performed.

The elevator door device according to this embodiment further includes a third door shoe 33 and a second mounting plate 42. The third door shoe 33 is disposed on the other side of the first door shoe 31 in the sill groove 22a in the extending direction of the sill groove 22a. The second mounting plate 42 is fixed to both the second door shoe 32 and the third door shoe 33. The second mounting plate 42 is arranged to face the first mounting plate 41. The second mounting plate 42 is fixed to the first mounting plate 41 using a fixing member 50.

According to this configuration, the second door shoe 32 and the third door shoe 33 can be easily fixed to the first mounting plate 41 without removing the first door shoe 31. Therefore, even if it becomes difficult to remove the first door shoe 31 due to rust on the fastening member, etc., the function of the guide device can be maintained by the second door shoe 32 and the third door shoe 33. Since the second door shoe 32 and the third door shoe 33 are arranged on both sides of the first door shoe 31 in the extending direction of the sill groove 22a, it is possible to stably open and close the first car door 10a.

In the elevator door device according to this embodiment, a shock absorbing member 42c is provided in a portion of the second mounting plate 42 that faces the first mounting plate 41. According to this configuration, noise caused by contact between the second mounting plate 42 and the first mounting plate 41 can be reduced.

The method for maintaining an elevator door device according to the present embodiment is a method for maintaining an elevator door device including a first car door 10a, a first door shoe 31, and a first mounting plate 41. In this maintenance method, the second door shoe 32 is fixed to the first mounting plate 41. The second door shoe 32 is arranged on one side of the first door shoe 31 in the extending direction of the sill groove 22a.

According to this maintenance method, if the first door shoe 31 becomes worn, the second door shoe 32 can be attached to the first car door 10a without removing the first door shoe 31. Therefore, even if it becomes difficult to remove the first door shoe 31 due to rust on the fastening member, etc., the function of the guide device can be maintained by the second door shoe 32. Therefore, maintenance of the elevator door device can be easily performed.

Embodiment 2.
An elevator door device and a maintenance method for the elevator door device according to Embodiment 2 will be described. FIG. 7 is a top view showing the configuration of the guide device of the elevator door device according to the present embodiment. FIG. 8 is a top view showing the configuration of the second door shoe of the elevator door device according to the present embodiment. The left-right direction in FIGS. 7 and 8 represents the extending direction of the sill groove 22a.

As shown in FIGS. 7 and 8, the guide device 30 includes a first door shoe 31, a second door shoe 32, a third door shoe 33, a first mounting plate 41, a third mounting plate 43, and a fourth mounting plate 44. ing. In this embodiment, the first door shoe 31 and the first mounting plate 41 are already attached when the elevator door device is installed. In this embodiment, the second door shoe 32, the third door shoe 33, the third mounting plate 43, and the fourth mounting plate 44 are newly installed during maintenance of the elevator door device. That is, the second door shoe 32, the third door shoe 33, the third attachment plate 43, and the fourth attachment plate 44 are attached later than the first door shoe 31 and the first attachment plate 41.

The third mounting plate 43 is provided to protrude from the second door shoe 32. The third mounting plate 43 is a mounting metal fitting for mounting the second door shoe 32 to the first car door 10a. The third mounting plate 43 has a rectangular flat plate shape. The longitudinal direction of the third mounting plate 43 is parallel to the extending direction of the sill groove 22a. One longitudinal end of the third mounting plate 43 is fixed to the second door shoe 32.

Two through

holes

43a and 43b are formed in the third mounting plate 43. Each of the through

holes

43a and 43b is a long hole that is long in the longitudinal direction of the third mounting plate 43. The through holes 43a and the through holes 43b are arranged in parallel along the longitudinal direction of the third mounting plate 43.

The fourth mounting plate 44 is provided to protrude from the third door shoe 33. The fourth mounting plate 44 is a mounting metal fitting for mounting the third door shoe 33 to the first car door 10a. The fourth mounting plate 44 has a rectangular flat plate shape. The longitudinal direction of the fourth mounting plate 44 is parallel to the extending direction of the sill groove 22a. One longitudinal end of the fourth mounting plate 44 is fixed to the third door shoe 33.

Two through

holes

44a and 44b are formed in the fourth mounting plate 44. Each of the through hole 44a and the through hole 44b is an elongated hole that is long in the longitudinal direction of the fourth mounting plate 44. The through holes 44a and the through holes 44b are arranged in parallel along the longitudinal direction of the fourth mounting plate 44.

The third mounting plate 43 is arranged to face one surface of the first mounting plate 41. The third mounting plate 43 is arranged on the non-design surface side with respect to the first mounting plate 41. A shock absorbing member 43c is provided in a portion of the third mounting plate 43 that faces the first mounting plate 41. The shock absorbing member 43c is made of rubber or the like. The third mounting plate 43 faces the first mounting plate 41 with the shock absorbing member 43c in between. This reduces noise caused by contact between the third mounting plate 43 and the first mounting plate 41.

The fourth mounting plate 44 is arranged to face the other surface of the first mounting plate 41. The fourth mounting plate 44 is arranged on the design side with respect to the first mounting plate 41. A shock absorbing member 44c is provided in a portion of the fourth mounting plate 44 that faces the first mounting plate 41. The shock absorbing member 44c is made of rubber or the like. The fourth mounting plate 44 faces the first mounting plate 41 with the shock absorbing member 44c interposed therebetween. This reduces noise caused by contact between the fourth mounting plate 44 and the first mounting plate 41.

When viewed in a direction perpendicular to the surface of the first mounting plate 41, the third mounting plate 43, first mounting plate 41, and fourth mounting plate 44 are arranged to overlap in this order. The third mounting plate 43 and the fourth mounting plate 44 are fixed to the first mounting plate 41 using a fixing member 51. In this embodiment, a flexible binding band is used as the fixing member 51. The fixing member 51 is passed through the through hole 43a, the through hole 44b, the through hole 44a, and the through hole 43b so as to surround the first mounting plate 41. The third mounting plate 43 and the fourth mounting plate 44 are bound together by a fixing member 51 with the first mounting plate 41 sandwiched therebetween. Thereby, the third mounting plate 43 and the fourth mounting plate 44 are fixed to the first mounting plate 41. The other configuration of the elevator door device is the same as that of the first embodiment.

Next, a method for maintaining the elevator door device according to the present embodiment will be described. In this embodiment, a first door shoe 31 and a first mounting plate 41 are provided as the guide device 30 on the first car door 10a before maintenance. The second door shoe 32, the third door shoe 33, the third mounting plate 43, and the fourth mounting plate 44 are not provided on the first car door 10a before maintenance.

FIG. 9 is a schematic diagram showing an example of the procedure for attaching the second door shoe and the third door shoe in the elevator door device maintenance method according to the present embodiment. As shown in FIG. 9, in this embodiment, while the existing first door shoe 31 and the existing first mounting plate 41 are attached, a new second door shoe 32, a new third door shoe 33, and a new third door shoe 33 are installed. 3 mounting plate 43 and a new 4th mounting plate 44 are installed.

When the fourth mounting plate 44 is located on the designed side and the third mounting plate 43 is located on the non-designed side, first, the fixing member 51 is passed through the through

holes

44a and 44b of the fourth mounting plate 44. In this state, the fourth mounting plate 44 and the third door shoe 33 are placed at the mounting position. Next, the third mounting plate 43 and the second door shoe 32 are placed in the mounting position. Then, the fixing member 51 is further passed through the through

holes

43a and 43b of the third mounting plate 43, and both ends of the fixing member 51 are fixed on the non-design side. As a result, the third mounting plate 43 and the fourth mounting plate 44 are bound together by the fixing member 51 with the first mounting plate 41 sandwiched therebetween, and are fixed to the first mounting plate 41. In this way, the second door shoe 32, the third door shoe 33, the third mounting plate 43, and the fourth mounting plate 44 can be attached to the first door shoe 32, the third door shoe 33, the third mounting plate 43, and the fourth mounting plate 44 without removing the first door shoe 31 and the first mounting plate 41 from the first car door 10a. It is attached to the car door 10a.

As explained above, the elevator door device according to the present embodiment further includes the third door shoe 33, the third mounting plate 43, and the fourth mounting plate 44. The third door shoe 33 is disposed on the other side of the first door shoe 31 in the sill groove 22a in the extending direction of the sill groove 22a. The third mounting plate 43 is fixed to the second door shoe 32. The fourth mounting plate 44 is fixed to the third door shoe 33. The third mounting plate 43 is arranged to face one surface of the first mounting plate 41. The fourth mounting plate 44 is arranged to face the other surface of the first mounting plate 41. The third mounting plate 43 and the fourth mounting plate 44 are fixed to the first mounting plate 41 using a fixing member 51.

According to this configuration, the second door shoe 32 and the third door shoe 33 can be easily fixed to the first mounting plate 41 without removing the first door shoe 31. Therefore, even if it becomes difficult to remove the first door shoe 31 due to rust on the fastening member, etc., the function of the guide device can be maintained by the second door shoe 32 and the third door shoe 33. The second door shoe 32 and the third door shoe 33 are arranged on both sides of the first door shoe 31 in the extending direction of the sill groove 22a. Therefore, the opening and closing operations of the first car door 10a can be performed stably.

In the elevator door device according to this embodiment, a shock absorbing member 43c is provided in a portion of the third mounting plate 43 that faces the first mounting plate 41. A shock absorbing member 44c is provided in a portion of the fourth mounting plate 44 that faces the first mounting plate 41. According to this configuration, noise caused by contact between the third mounting plate 43 and the first mounting plate 41 and noise caused by contact between the fourth mounting plate 44 and the first mounting plate 41 can be reduced.

In the elevator door device according to this embodiment, the fixing member 51 is a binding band. According to this configuration, the second door shoe 32 and the third door shoe 33 can be easily fixed to the first mounting plate 41. Moreover, by using a binding band, the third mounting plate 43, the first mounting plate 41, and the fourth mounting plate 44 can be firmly bound together without being affected by dimensional errors of each component. Therefore, rattling of the third mounting plate 43, the first mounting plate 41, and the fourth mounting plate 44 can be suppressed.

Embodiment 3.
An elevator door device and a maintenance method for the elevator door device according to Embodiment 3 will be described. FIG. 10 is a top view showing the configuration of the guide device of the elevator door device according to the present embodiment. The left-right direction in FIG. 10 represents the extending direction of the sill groove 22a.

As shown in FIG. 10, the guide device 30 of this embodiment, like the guide device 30 of the second embodiment, includes a first door shoe 31, a second door shoe 32, a third door shoe 33, a first mounting plate 41, It has a third mounting plate 43 and a fourth mounting plate 44. The first door shoe 31 and the first mounting plate 41 are already attached when the elevator door device is installed. The second door shoe 32, the third door shoe 33, the third mounting plate 43, and the fourth mounting plate 44 are newly installed during maintenance of the elevator door device. That is, the second door shoe 32, the third door shoe 33, the third attachment plate 43, and the fourth attachment plate 44 are attached later than the first door shoe 31 and the first attachment plate 41.

When viewed in a direction perpendicular to the surface of the first mounting plate 41, the third mounting plate 43, first mounting plate 41, and fourth mounting plate 44 are arranged to overlap in this order. The third mounting plate 43 faces one surface of the first mounting plate 41 with the shock absorbing member 43c interposed therebetween. The fourth mounting plate 44 faces the other surface of the first mounting plate 41 with the shock absorbing member 44c interposed therebetween. The shock absorbing member 43c is compressed between the third mounting plate 43 and the first mounting plate 41. The shock absorbing member 44c is compressed between the fourth mounting plate 44 and the first mounting plate 41. The third mounting plate 43 and the fourth mounting plate 44 are fixed using a fixing member 52a and a fixing member 52b with the first mounting plate 41 sandwiched therebetween. Thereby, the third mounting plate 43 and the fourth mounting plate 44 are fixed to the first mounting plate 41.

The fixing member 52a is passed through the through hole 43a of the third mounting plate 43 and the through hole 44b of the fourth mounting plate 44. The fixing member 52b is passed through the through hole 43b of the third mounting plate 43 and the through hole 44a of the fourth mounting plate 44. Each of the through

holes

43a and 43b is a long hole that is long in the longitudinal direction of the third mounting plate 43. Each of the through hole 44a and the through hole 44b is an elongated hole that is long in the longitudinal direction of the fourth mounting plate 44.

11 and 12 are perspective views showing the configuration of the fixing member of the elevator door device according to the present embodiment. The vertical direction in FIGS. 11 and 12 represents the vertical vertical direction. FIG. 11 shows the posture of the fixing member 52a when inserted into the through hole 43a and the through hole 44b. FIG. 12 shows the posture of the fixing member 52a after being inserted into the through hole 43a and the through hole 44b. Although the configuration of the fixing member 52a is shown in FIGS. 11 and 12, the fixing member 52b also has the same configuration as the fixing member 52a.

As shown in FIGS. 11 and 12, the fixing member 52a has a U-shape. The fixing member 52a has a shaft portion 52a1 and a pair of hook-shaped portions 52a2 and 52a3. The shaft portion 52a1 extends linearly. The shaft portion 52a1 passes through the third mounting plate 43 and the fourth mounting plate 44. The hook-shaped portion 52a2 is formed at one end of the shaft portion 52a1. The hook-shaped portion 52a2 protrudes from one end of the shaft portion 52a1 in a direction perpendicular to the extending direction of the shaft portion 52a1. The hook-shaped portion 52a3 is formed at the other end of the shaft portion 52a1. The hook-shaped portion 52a3 projects from the other end of the shaft portion 52a1 in the same direction as the direction in which the hook-shaped portion 52a2 projects. The fixing member 52a is made of metal, for example.

Here, it is assumed that the fixing member 52a is inserted into the through

holes

43a and 44b with the hooked portion 52a3 at the beginning. When the fixing member 52a is in the attitude shown in FIG. 11, the respective protruding directions of the hooked portions 52a2 and 52a3 coincide with the longer diameter direction of the through hole 43a and the longer diameter direction of the through hole 44b. Thereby, the hook-shaped portion 52a3 can pass through the through hole 43a and the through hole 44b. On the other hand, when the fixing member 52a assumes the posture shown in FIG. 12, the respective protruding directions of the hooked portions 52a2 and 52a3 are perpendicular to the longer diameter direction of the through hole 43a and the longer diameter direction of the through hole 44b. Thereby, the hooked portion 52a2 is hooked on the third mounting plate 43, and the hooked portion 52a3 is hooked on the fourth mounting plate 44.

In the state shown in FIG. 10, the third mounting plate 43 is pressed against the hook-shaped portion 52a2 by the elastic restoring force of the shock absorbing member 43c. The fourth mounting plate 44 is pressed against the hook-shaped portion 52a3 by the elastic restoring force of the shock absorbing member 44c. The first mounting plate 41 is pressurized from both sides by a shock absorbing member 43c and a shock absorbing member 44c. Thereby, the third mounting plate 43 and the fourth mounting plate 44 are fixed to the first mounting plate 41 without wobbling. The other configuration of the elevator door device is the same as that of the first or second embodiment.

FIG. 13 is a schematic diagram showing an example of the procedure for attaching the second door shoe and the third door shoe in the elevator door device maintenance method according to the present embodiment. As shown in FIG. 13, in this embodiment, as in the second embodiment, the existing first door shoe 31 and the existing first mounting plate 41 are still attached, and the new second door shoe 32 and the new The third door shoe 33, the new third mounting plate 43, and the new fourth mounting plate 44 are installed.

First, the second door shoe 32, the third door shoe 33, the third mounting plate 43, and the fourth mounting plate 44 are placed at the mounting position. Next, the fixing member 52a in the attitude shown in FIG. 11 is inserted into the through hole 43a and the through hole 44b, and the fixing member 52a is rotated so as to take the attitude shown in FIG. 12. Similarly, the fixing member 52b is inserted into the through hole 43b and the through hole 44a, and the fixing member 52b is rotated. Thereby, the third mounting plate 43 and the fourth mounting plate 44 are fixed to the first mounting plate 41. In this way, the second door shoe 32, the third door shoe 33, the third mounting plate 43, and the fourth mounting plate 44 can be attached to the first door shoe 32, the third door shoe 33, the third mounting plate 43, and the fourth mounting plate 44 without removing the first door shoe 31 and the first mounting plate 41 from the first car door 10a. It is attached to the car door 10a.

As explained above, in the elevator door device according to this embodiment, the fixing member 50 has a U-shape. According to this configuration, the second door shoe 32 and the third door shoe 33 can be easily fixed to the first mounting plate 41.

Embodiments 1 to 3 above can be implemented in combination with each other. For example, in the configuration of each embodiment, a fixing member of another embodiment may be used instead of the fixing member of the embodiment.

In the above embodiment, a car door is used as an example of the door of the elevator door device, but the door of the elevator door device may be a hall door.

10a first car door, 10b second car door, 11 top plate, 12 reinforcing member, 13 bolt, 14 nut, 20 car doorway, 21 car door frame, 22 sill, 22a sill groove, 30 guide device, 31 first door shoe , 32 second door shoe, 33 third door shoe, 41 first mounting plate, 41a side end, 41b side end, 42 second mounting plate, 42a through hole, 42b through hole, 42c shock absorbing member, 42d shock absorbing member , 43 third mounting plate, 43a through hole, 43b through hole, 43c shock absorbing member, 44 fourth mounting plate, 44a through hole, 44b through hole, 44c shock absorbing member, 50 fixing member, 50a arm, 50a1 claw , 50b arm part, 50b1 claw part, 50c connecting part, 50d shock absorbing member, 51 fixing member, 52a fixing member, 52a1 shaft part, 52a2 hooked part, 52a3 hooked part, 52b fixing member.

Claims

A door that opens and closes along the sill groove,
a first door shoe disposed in the sill groove;
a first mounting plate protruding from the first door shoe and fixed to the door;
a second door shoe disposed on one side of the first door shoe in the extending direction of the sill groove among the sill grooves and fixed to the first mounting plate;
Elevator door device with.
a third door shoe disposed on the other side of the first door shoe in the extending direction of the sill groove among the sill grooves and fixed to the first mounting plate;
a second mounting plate fixed to both the second door shoe and the third door shoe;
Furthermore,
The second mounting plate is arranged opposite to the first mounting plate,
The elevator door device according to claim 1, wherein the second mounting plate is fixed to the first mounting plate using a fixing member.
The elevator door device according to claim 2, wherein a shock absorbing member is provided in a portion of the second mounting plate that faces the first mounting plate.
a third door shoe disposed on the other side of the first door shoe in the extending direction of the sill groove among the sill grooves and fixed to the first mounting plate;
a third mounting plate fixed to the second door shoe;
a fourth mounting plate fixed to the third door shoe;
Furthermore,
The third mounting plate is arranged to face one surface of the first mounting plate,
The fourth mounting plate is arranged to face the other surface of the first mounting plate,
The elevator door device according to claim 1, wherein the third mounting plate and the fourth mounting plate are fixed to the first mounting plate using a fixing member.
The elevator door device according to claim 4, wherein a shock absorbing member is provided in a portion of each of the third mounting plate and the fourth mounting plate that faces the first mounting plate.
The elevator door device according to any one of claims 2 to 5, wherein the fixing member has a U-shape.
The elevator door device according to any one of claims 2 to 5, wherein the fixing member is a binding band.
A door that opens and closes along the sill groove,
a first door shoe disposed in the sill groove;
a first mounting plate protruding from the first door shoe and fixed to the door;
1. A method of maintaining an elevator door device comprising:
A method for maintaining an elevator door device, in which a second door shoe of the sill groove, which is disposed on one side of the first door shoe in the extending direction of the sill groove, is fixed to the first mounting plate.