WO2007032080A1

WO2007032080A1 - Car upper side handrail device of elevator

Info

Publication number: WO2007032080A1
Application number: PCT/JP2005/017133
Authority: WO
Inventors: Kazuya Shindo; Naohiko Sajiki
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2005-09-16
Filing date: 2005-09-16
Publication date: 2007-03-22
Also published as: EP1925581A1; JPWO2007032080A1; CN101031494A; CN101031494B; EP1925581A4

Abstract

A car upper side handrail device of an elevator capable of eliminating those operations performed by an elevator service person with a stoop to prevent the handrail device from being turned over when the elevator service person performs assembling and storing operations for the handrail device, easily assemblable and storable, and manufacturable at low cost. An upper stage pin and a lower stage pin disposed on the upper and lower sides in an assembled state are mounted at the lower end part of each of the vertical column of the handrail device. A guide part engaged with one of the upper stage pin and the lower stage pin and guiding the vertical column by a predetermined distance in the vertical direction and a constraining part constraining the rotation of the vertical column when the handrail device is brought in an assembled state by the engagement of the other of the upper stage pin and the lower stage pin thereto from the upper side are installed at a connection part connecting the lower end part of the vertical column to the upper part of a car so that the vertical column can be rotated.

Description

Specification

Elevator car handrail device

Technical field

TECHNICAL FIELD [0001] The present invention relates to a car handrail device that stands on an upper part of a car during maintenance work of an elevator and is folded and stored on the upper part of the car when not needed.

Background art

[0002] During maintenance work of an elevator, a maintenance worker often works by riding on a force elevator that moves up and down in the elevator hoistway. For this reason, a car handrail device is installed at the top of the car to ensure safety during maintenance work. In addition, as a conventional technique of a car upper handrail apparatus, a structure in which a handrail apparatus disposed on both sides of a car is configured to be foldable to reduce the necessary space at the top of a hoistway has been proposed (for example, patents). Reference 1).

Patent Document 1: Japanese Unexamined Patent Publication No. 2000-143125 (FIG. 3)

Disclosure of the invention

Problems to be solved by the invention

[0004] In the elevator handrail device described in Patent Document 1, when the handrail device configured to be foldable is assembled on the upper portion of the force lever, a stubber and a latch mechanism for preventing the handrail device after the assembly from overturning. Etc. had to be operated with the operator bent, and there was a problem that workability was poor! In addition, the structure of the stagger and the latch mechanism was complicated, leading to high costs. Further, when the telescopic handrail device is supported by pins and bolts, all the vertical loads applied to the handrail device act as shearing forces on the pins and the like, so that strong and expensive pins and the like have to be used.

[0005] The present invention has been made in order to solve the problem of increasing power, and an object of the present invention is to provide an elevator car handrail device that is easy to assemble and store and can be constructed at low cost. It is.

Means for solving the problem

[0006] An elevator car handrail device according to the present invention stands on an upper part of a car at the time of elevator maintenance work, and is folded on an upper part of the car and stored when not needed. In the handrail device, a handrail device having a handrail and a vertical column that supports the handrail, an upper stage pin and a lower stage pin that are provided at the lower end portion of the vertical column and are arranged vertically in the assembled state of the handrail device, and an upper part of the force lever And a guide part that engages one of the upper and lower pins and guides the vertical pillar in a vertical direction by a predetermined distance. And a restricting portion that restricts the rotation of the vertical column in the assembled state of the handrail device by engaging the other of the upper pin and the lower pin from above.

The invention's effect

[0007] The present invention relates to a handrail and a vertical column that supports the handrail in a car handrail device that stands on the top of a car during elevator maintenance work and is folded and stored on the top of the car when not needed. Provided on the lower end of the vertical column, and on the upper and lower pins disposed on the upper and lower sides in the assembled state of the handrail device, and on the upper part of the force lever, so that the lower end of the vertical column is rotatable. A connecting portion that is engaged with one of the upper and lower pins and guides the vertical column in the vertical direction by a predetermined distance, and the other of the upper and lower pins from above. By being engaged, it is configured to have a restricting portion that restricts the rotation of the vertical column in the assembled state of the handrail device, so that the assembling operation and the storing operation are easy and can be configured at low cost.

Brief Description of Drawings

FIG. 1 is a side view showing a configuration of an elevator car handrail device in Embodiment 1 of the present invention.

2 is a plan view of the elevator car handrail device shown in FIG. 1. FIG.

FIG. 3 is a front view of the elevator car upper handrail device shown in FIG. 1.

FIG. 4 is a detailed view of part A of the elevator car upper handrail device shown in FIG. 1.

FIG. 5 is a front view of the elevator car upper handrail device shown in FIG. 4.

FIG. 6 is a detailed view of part B of the elevator car handrail device shown in FIG. 1.

FIG. 7 is an XX cross-sectional view of the elevator car upper handrail device shown in FIG. 6.

[Fig. 8] Fig. 8 is a detail view of a main part for explaining the folding operation of the elevator car handrail device according to the first embodiment of the present invention. FIG. 9 is a side view for explaining the folding operation of the elevator car handrail device according to the first embodiment of the present invention.

FIG. 10 is a front view illustrating the folding operation of the elevator car handrail device according to the first embodiment of the present invention.

FIG. 11 is a detailed view of part C of the elevator car upper handrail device shown in FIG.

FIG. 12 is a front view illustrating the folding operation of the elevator car handrail device according to the first embodiment of the present invention.

FIG. 13 is a plan view showing the configuration of an elevator car handrail device in Embodiment 2 of the present invention.

FIG. 14 is a Y-Y cross-sectional view of the elevator car upper handrail device shown in FIG.

FIG. 15 is a front view showing a configuration of an elevator car handrail device according to Embodiment 2 of the present invention.

FIG. 16 is a view for explaining the configuration of an elevator car handrail device in embodiment 2 of the present invention.

FIG. 17 is a side view for explaining the folding operation of the elevator car handrail device according to the third embodiment of the present invention.

FIG. 18 is a detailed view of part D of the elevator car handrail device shown in FIG.

FIG. 19 is a front view of the elevator car handrail device shown in FIG. 18.

FIG. 20 is a side view for explaining the folding operation of the elevator car handrail device according to the fourth embodiment of the present invention.

FIG. 21 is a side view illustrating the folding operation of the elevator car upper handrail device according to the fourth embodiment of the present invention.

FIG. 22 is a side view of an essential part of an elevator car upper handrail device according to Embodiment 5 of the present invention.

FIG. 23 is a front view of the elevator car handrail device shown in FIG.

Explanation of symbols

1 cab

2 cushioning material Basket frame

Cage bottom frame

Basket frame pillar

Basket top frame

Car door drive device Car door

a, 9b Side beam

0 Front beam

1 Rear beam

2 Handrail device

3 Right handrail

4 Left handrail

5 Rear handrail

6, 32 Connecting section 7, 23 Vertical column

7a Through hole

8, 24 Upper handrail 9, 25 Lower handrail 0, 33 Lower pin 1 Upper pin

2, 34 Mounting bracket 2a, 34a Guide 2b Stopper groove

Rotating device a, 26b Support bracket c, 35a pin, 27c, 28 Locking device a Mounting plate 27b Butterfly bolt

29 Right handrail

30 Left handrail

31 Raising platform

35 Means to prevent lifting

35b chain

36 Bonoreto

BEST MODE FOR CARRYING OUT THE INVENTION

[0010] In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and the duplicated explanation is appropriately simplified or omitted.

Example 1

FIG. 1 is a side view showing the configuration of an elevator car handrail device in Embodiment 1 of the present invention, FIG. 2 is a plan view of the elevator car handrail device shown in FIG. 1, and FIG. 3 is FIG. It is a front view of the elevator handrail device of the elevator shown. 4 is a detailed view of part A of the elevator car handrail device shown in FIG. 1, FIG. 5 is a front view of the elevator car upper handrail device shown in FIG. 4, and FIG. 6 is an elevator car handrail shown in FIG. FIG. 7 is a cross-sectional view taken along the line XX of the elevator car handrail device shown in FIG.

In FIG. 1 to FIG. 7, reference numeral 1 denotes a car room in which an elevator user gets on and off. The car room 1 is supported by a car frame 3 via a plurality of cushioning materials 2. The force cage 3 is arranged below the cage room 1 and supports the force cage 1 and the lower end of the cage 3 is provided on the cage bottom frame 4. And a car frame column 5 having a substantially U-shaped cross section, and a car that is arranged above the upper surface of the force chamber 1 and connects the upper end of each car frame column 5 in the direction of the front of the car. It consists of the upper frame 6. Reference numeral 7 denotes a car door drive device that is provided on the car doorway side of the car upper frame 6 and drives the car door 8 that opens and closes the car doorway.

[0013] The car upper frame 6 has side beams 9a and 9b having left and right beam forces arranged in the depth direction of the car, the middle part of which is fixed to the upper end of each car frame column 5, and the side beams 9a and 9a. 9b is provided across the front end portions of the 9b and connects the front end portions of the side beams 9a and 9b in the direction of the front of the car. The front beam 10 and the rear beam 11 provided between the rear end portions of the side beams 9a and 9b and connecting the rear end portions of the side beams 9a and 9b in the direction of the front edge of the force. Consists of a generally square ring as a whole. Further, the side beams 9a and 9b, the front beam 10 and the rear beam 11 constituting the car upper frame 6 are each constituted by a square pipe, and both ends of the front beam 10 and the rear beam 11 are side beams 9 a. And welded to 9b!

[0014] Next, the configuration of the handrail device 12 provided on the car in order to ensure the safety of the elevator maintenance worker will be described. The handrail device 12 is configured to be foldable in order to save space at the top of the hoistway. In FIGS. 1 to 7, the handrail device 12 is assembled during elevator maintenance inspection. It shows the state of standing up at the top of the car (hereinafter referred to as “assembled state”). In the assembled state, the handrail device 12 includes a right handrail 13 and a left handrail 14 disposed on the right and left sides of the upper part of the car as viewed from the elevator landing side, and a rear handrail 15 disposed on the rear side of the upper part of the cage. It consists of. Reference numeral 16 denotes a connecting portion that is provided at both ends of the front beam 10 and both ends of the rear beam 11 of the car upper frame 6 and connects the lower ends of the right handrail 13 and the left handrail 14 so as to be rotatable within a predetermined angle.

[0015] The right handrail 13 and the left handrail 14 are welded and joined to two vertical columns 17 disposed on the front side and the rear side of the car, and upper ends of both vertical columns 17, respectively. An upper handrail 18 that connects the upper end in the depth direction of the car, and a lower handrail that is welded to each middle part of both vertical columns 17 and arranged in the depth direction of the car so as to be substantially parallel to the upper handrail 18 It is composed of 19. The upper handrail 18 and the lower handrail 19 and the vertical columns 17 that support the upper handrail 18 and the lower handrail 19 are respectively formed by square pipes.

[0016] Further, a lower pin 20 and an upper pin 21 are provided at the lower end of each vertical column 17 so as to be arranged vertically when the handrail device 12 is assembled. Here, the lower pin 20 and the upper pin 21 are arranged in the depth direction of the car so as to be parallel to each other, and the both end portions protrude so that the front side surface and the rear side force of the vertical frame 17 also protrude by a predetermined distance. Is provided. Then, the connecting column 16 that rotatably connects the lower end of each vertical column 17 to the front beam 10 and the rear beam 11 is engaged with one of the lower pin 20 and the upper pin 21 so that the vertical column 17 is engaged. A guide portion that guides a predetermined distance upward, and a restriction portion that restricts the rotation of the vertical column 17 in the assembled state of the handrail device 12 by engaging the other of the lower pin 20 and the upper pin 21 from above. ing. [0017] The connecting portion 16 in the first embodiment has a substantially U-shaped cross section, and the front beam 10 and the rear beam so that the open end of the U-shaped portion faces the center of the planar vision. It consists of a mounting bracket 22 erected on the upper surface of the end portion of 11. A guide hole 22a (guide portion) composed of a long hole having a longitudinal direction in the vertical direction is provided on a parallel plate of the mounting bracket 22 facing each other with a predetermined interval, and provided above the guide hole 22a. Then, a staggered groove 22b (regulator) having an approximately U-shaped groove opening upward is formed.

[0018] Further, the lower end portion of the vertical column 17 is disposed in the U-shaped portion of the mounting bracket 22, that is, between the parallel plates. Then, the lower pins 20 are disposed so as to pass through the guide holes 22a of the mounting bracket 22, and the upper pins 21 are disposed in the stopper grooves 22b. In the assembled state of the handrail device 12, the vertical column 17 is placed directly on the front beam 10, and the vertical load acting on the handrail device 12 and the own weight of the handrail device 12 are caused by the front beam 10 and the rear beam 11. It is configured to be supported. That is, a slight gap is formed between the lower pin 20 and the lower edge portion of the guide hole 22a, and between the upper pin 21 and the lower edge portion of the staggered groove 22b. Is not affected by the vertical load.

On the other hand, the rear handrail 15 is formed by welding and joining four square pipes into a quadrangular annular shape, and the vertical pillars 23 on both sides and the upper handrail 24 that connects the upper ends of both the vertical pillars 23. And a lower handrail 25 connecting the lower ends of the vertical columns 23. In the rear handrail 15, the left vertical column 23 is rotatably connected to the rear vertical column 17 of the left handrail 14 by a rotation device 26 (not shown in FIGS. 1 to 7). The right vertical column 23 is locked to the rear vertical column 17 of the right handrail 13 by a locking device 27. Here, the distance between the upper handrail 24 and the lower handrail 25 of the rear handrail 15 is shorter than the distance between the upper handrail 18 and the lower handrail 19 supported by the rotating device 26. It is arranged within the height between the upper handrail 18 and the lower handrail 19 of the left handrail 14.

In addition, as shown in FIGS. 6 and 7, the locking device 27 includes a mounting plate 27a having a substantially L-shape provided on a vertical column 17 on the rear side of the right handrail 13 and a rear handrail 15 It is composed of a butterfly bolt 27b screwed into the vertical column 23 on the right side of the head. Then, by tightening the butterfly bolt 27b and sandwiching the mounting plate 27a by the side face of the vertical frame 23 of the rear handrail 15 and the butterfly bolt 27b, the right vertical frame 23 of the rear handrail 15 becomes the rear vertical pillar of the right handrail 13. Fixed to 17. [0021] Next, the operation and configuration when the handrail device 12 is folded and stored on the car when the elevator maintenance work is finished and the handrail device 12 becomes unnecessary will be described. FIG. 8 is a detail view of a main part for explaining the folding operation of the elevator car handrail device according to the first embodiment of the present invention. FIG. 9 shows the folding operation of the elevator handrail device according to the first embodiment of the present invention. FIG. 10 and FIG. 12 are front views for explaining the folding operation of the elevator car upper handrail device in Embodiment 1 of the present invention, and FIG. 11 is C of the elevator car upper handrail device shown in FIG. FIG.

[0022] The elevator maintenance worker first loosens the butterfly bolt 27b of the locking device 27 to remove the right vertical column 23 of the rear handrail 15 from the rear vertical column 17 of the right handrail 13, The rear handrail 15 is rotated around the rotating device 26 and moved to the left handrail 14 side. At this time, since the distance between the upper handrail 24 and the lower handrail 25 of the rear handrail 15 is shorter than the distance between the upper handrail 18 and the lower handrail 19 of the left handrail 14, the rear handrail 15 is moved to the left. The rear handrail 15 can be disposed in the space formed by the vertical columns 17, the upper handrail 18, and the lower handrail 19 on both sides of the left handrail 14 by rotating the handrail 14 to be substantially parallel. That is, the rear handrail 15 is configured to be accommodated within the thickness of the left handrail 14.

FIG. 8 shows a main part in a state where the rear handrail 15 is arranged within the thickness of the left handrail 14. In FIG. 8, the rotating device 26 includes a substantially U-shaped support bracket 26 a provided on the vertical column 17 on the rear side of the left handrail 14 and a vertical U-shape provided on the left vertical column 23 of the rear handrail 15. The support bracket 26b having a shape is pivoted by a pin 26c having an axis in the vertical direction. When the rear handrail 15 is disposed within the thickness of the left handrail 14, the support brackets 26a and 26b and the pin 26c are also disposed within the thickness of the left handrail 14 similarly to the rear handrail 15. ing. The locking device shown in 28 is for fixing the rear handrail 15 to the left handrail 14 and preventing the rear handrail 15 from moving when the rear handrail 15 is disposed within the thickness of the left handrail 14. is there.

[0024] Next, the maintenance worker lifts the right handrail 13 and the left handrail 14 a predetermined distance and then folds them inside the car. The right handrail 13 is placed on the car upper frame 6 and the left handrail 14 is placed on the car upper frame 6 Is placed on the right handrail 13 placed on FIG. 11 shows the configuration of the lower portion of the vertical column 17 and the connecting portion 16 when the right handrail 13 and the left handrail 14 are stored on the car. For such storage work First, the maintenance worker moves the front and rear vertical columns 17 upward by lifting the right handrail 13 upward. At this time, the lower end portion of the vertical column 17 moves upward along the longitudinal direction of the guide hole 22a by the lower pin 20 being guided by the guide hole 22a formed in the mounting bracket 22. Note that both ends of the lower pin 20 protrude outside the mounting bracket 22 via the guide holes 22a, so that the vertical column 17 cannot be completely removed from the connecting portion 16 when the lower pin 20 is attached. Can not.

Further, by lifting the right handrail 13 upward, the upper pin 21 provided above the lower pin 20 is moved upward together with the lower pin 20. Then, the upper stage pin 21 moves the opening end force of the stagger groove 22b above the mounting bracket 22, so that the engagement state between the upper stage pin 21 and the stopper groove 22b is canceled. In this state, it is possible to rotate the vertical frame 17 around the lower pin 20, so that the maintenance worker does not interfere with the mounting bracket 22 when the upper pin 21 rotates when the vertical frame 17 is rotated. After the right handrail 13 is lifted, the right handrail 13 is tilted to the inside of the force lever and placed on the force upper frame 6.

Next, the maintenance worker tilts the left handrail 14 inward of the car and places it on the right handrail 13 that has been folded on the car upper frame 6 in the same procedure as described above. Here, the left handrail 14 is disposed horizontally on the right handrail 13. That is, the guide hole 22a formed in the mounting bracket 22 is aligned with the position of the lower pin 20 that moves upward by the thickness of the right handrail 13 when the left handrail 14 is horizontally placed on the right handrail 13. The length in the vertical direction is set. FIG. 12 shows a state in which the right handrail 13 and the left handrail 14 are placed on the force upper frame 6 and the handrail device 12 is completely folded (hereinafter referred to as “storage state” ヽぅ). It is.

[0027] Further, during the elevator maintenance work, the maintenance worker assembles the handrail device 12 on the car according to the reverse procedure of the above storage. That is, the maintenance worker first lifts the left handrail 14 placed on the force lever so as to rotate around the lower pin 20. Then, after the left handrail 14 is in an upright state, the left handrail 14 is gently lowered so that the upper pin 21 provided at the lower end of the vertical column 17 is disposed in the stagger groove 22b of the connecting portion 16 and Stand on frame 6. Further, the right handrail 13 is erected on the car upper frame 6 by the same procedure as described above.

[0028] Next, the maintenance worker loosens the butterfly bolt of the locking device 28 to make the rear handrail 15 turnable, and rotates the rear handrail 15 around the turning device 26 to the right. On the handrail 13 side Move. Then, the right vertical column 23 of the rear handrail 15 is fixed to the rear vertical column 17 of the right handrail 13 by fastening the butterfly bolt 27b of the locking device 27.

[0029] According to Embodiment 1 of the present invention, when assembling the right handrail 13 and the left handrail 14, only the upper pin 21 provided at the lower end of the vertical column 17 is engaged with the stagger groove 22b of the mounting bracket 22. Thus, since the handrail device 12 can be prevented from falling, a conventional stagger or latch mechanism provided only for preventing the handrail device 12 after the assembly from falling is unnecessary. Therefore, it is not necessary for the maintenance worker to bend with force to prevent the handrail device 12 from overturning, and the workability can be improved and the assembly time and the storage time can be shortened. Further, since it is not necessary to provide a conventional stagger or latch mechanism, the structure can be simplified and the handrail device 12 can be provided at a low cost.

[0030] In addition, since the handrail device 12 is placed and stored on the force upper frame 6 provided a predetermined distance above the force upper surface, the elevator apparatus installed on the car may be damaged. In addition, it is possible to prevent the vibration of a fan or the like installed on the upper surface of the force from propagating to the handrail device 12 and generating noise.

[0031] Further, in the handrail device 12 in the stored state, since the rear handrail 15 is arranged within the thickness of the left handrail 14, the thickness of the entire handrail device 12 placed on the force upper frame 6 is reduced. The thickness of the right handrail 13 and the thickness of the left handrail 14 can be suppressed only. Note that the rear handrail 15 does not fit within the thickness of the left handrail 14, but can be arranged within the thickness of the right handrail 13 and the left handrail 14 in the housed state of the handrail device 12, as described above. Needless to say, it can be effective.

Example 2

FIG. 13 is a plan view showing the configuration of the elevator car handrail device in Embodiment 2 of the present invention, and FIG. 14 is a YY sectional view of the elevator car handrail device shown in FIG. In FIGS. 13 and 14, the rear handrail 15 of the handrail device 12 is a right rear handrail 29 rotatably provided on a vertical column 17 on the rear side of the right handrail 13 via a rotation device (not shown). And a left rear handrail 30 that is rotatably provided on a vertical column 17 on the rear side of the left handrail 14 via a rotation device 26. Both the right rear handrail 29 and the left rear handrail 30 are formed by welding and joining square pipes into a square ring shape. It is connected by a locking device 27c. When the handrail device 12 is housed, the handrail device 12 is rotated around the rotation device 26 and the like so that the right rear handrail 29 is within the thickness of the right handrail 13 and the left rear handrail 30 is the thickness of the left handrail 14. Each is housed inside.

[0033] By dividing the rear handrail 15 as described above, it is possible to narrow the rotation range of the right rear handrail 29 and the left rear handrail 30 and improve the workability during assembly and storage. Can. Further, even when the width of the rear handrail 15 is wider than that of the right handrail 13 or the left handrail 14, that is, the force is wide, it is possible to easily cope with the case.

FIG. 15 is a front view showing the configuration of the elevator car handrail device in the second embodiment of the present invention, and FIG. 16 is a diagram for explaining the configuration of the elevator car upper handrail device in the second embodiment of the present invention. This shows the configuration of the handrail device 12 when the force is wide. In FIG. 15, a raising base 31 having a substantially Z shape is provided on the upper surface of the left end portion of the force upper frame 6. In the handrail device 12 in the stored state, the vertical column 17 of the left handrail 14 is horizontally placed on the raising base 31 and the right handrail 13. That is, the lifting platform 31 has the same height as the thickness of the right handrail 13 and is disposed at a position below the vertical column 17 of the left handrail 14 in the stored state.

[0035] Here, if the raising base 31 is not provided when the width of the force is wide, the left handrail 14 is inclined in the housed state of the handrail device 12, as shown in FIG. . Therefore, by having the above-described configuration, the handrail device 12 in the stored state can be horizontally disposed on the car upper frame 6 and the thickness thereof can be limited to the thickness of the right handrail 13 and the thickness of the left handrail 14 only. It becomes possible, and interference with a force-up apparatus can also be prevented. In addition, since the left handrail 14 can be kept horizontal, it is stable even when the force is raised and lowered, and there is no risk of noise such as vibration and chattering. The rest of the configuration and effects are the same as those of the first embodiment. Example 3

FIG. 17 is a side view for explaining the folding operation of the elevator car handrail device according to the third embodiment of the present invention, and FIG. 18 is a detailed view of section D of the elevator force handrail device shown in FIG. FIG. 19 is a front view of the elevator car handrail device shown in FIG. 18. 17 to 19, the front side of the right handrail 13 and the left handrail 14, that is, the elevator boarding side, has the same configuration as that of the first and second embodiments, and is provided on the upper side frame 6 of the force lever. Mounting bracket 22 and below vertical column 17 A lower pin 20 and an upper pin 21 provided at the end are provided.

[0037] On the other hand, on the rear side of the right handrail 13 and the left handrail 14, that is, on the opposite side of the elevator, there is a connecting portion 32 erected at the end of the rear beam 11 of the upper frame 6 and a vertical column. A lower pin 33 provided at the lower end of 17 is provided. Here, the connecting portion 32 is composed of a mounting bracket 34 that has a substantially U-shaped cross section and is arranged so that the open end of the U-shaped portion faces the central portion of the planar vision. A guide hole 34a, which is also a long hole having a longitudinal direction in the vertical direction, is formed in parallel plates facing each other with a predetermined interval. Further, the lower pin 33 has the same configuration as the lower pin 20 in the first and second embodiments, and its longitudinal direction is arranged in the depth direction of the car, and both end portions thereof are the front side surface and the rear side of the vertical frame 17. It is provided so as to protrude a predetermined distance from the side surface. That is, on the side opposite to the boarding side, those corresponding to the upper pin 21 and the stopper groove 22b in the first and second embodiments are not provided.

[0038] As described above, by providing the upper pin 21 and the stopper groove 22b formed in the mounting bracket 22 only on the boarding side, the assembly work and the storage work of the handrail device 12 performed by the elevator maintenance worker are performed. It becomes possible to reduce. That is, when the handrail device 12 is stored, the maintenance worker lifts the vertical column 17 on the boarding side as shown in FIG. 17 when the right handrail 13 and the left handrail 14 are lifted and folded inside the force lever. Only the right handrail 13 and the left handrail 14 can be folded. Therefore, the storage operation can be performed with a force that is approximately half the weight of the right handrail 13. Also, when assembling the handrail device 12, it is only necessary to engage the upper pin 21 with the stopper groove 22b only on the boarding side. There is no risk of deteriorating workability even when it is difficult to see the opposite side. The other configurations and effects are the same as those of the first or second embodiment.

Example 4

FIGS. 20 and 21 are side views for explaining the folding operation of the elevator car handrail device according to the fourth embodiment of the present invention. 20 and 21, the elevator car room 1 has car entrances (not shown) on both the front side and the rear side. A force door driving device 7 for opening and closing the door 8 is also provided on the front side and the rear side of the car upper frame 6, respectively. That is, as shown in FIG. 20 and FIG. The elevator is a two-way elevator where two car doorways are formed in the linear direction of the car room 1.

[0040] The right handrail 13, the left handrail 14, and the rear handrail 15 of the handrail device 12 are provided detachably with respect to the upper part of the force lever, and can be attached even in the front-rear direction with respect to the force hand. Is configured. That is, the lower pin 20 is detachably provided on the vertical column 17, and the handrail device 12 can be removed from the mounting bracket 22 by removing the lower pin 20. The vertical column 17 and the mounting bracket 22 are arranged so that the vertical column 17 can be attached to the mounting bracket 22 even if the handrail device 12 is turned 180 degrees. Note that the mounting bracket 22 provided on the upper frame 6 of the force plate is provided with a staggered groove 22b on all of those provided on the front beam 10 and the rear beam 11. On the other hand, the vertical pins 17 are provided with detachable lower pins 20 at all lower ends thereof, and are mounted with a rotation device 26 and a locking device 27 for supporting the rear handrail 15 on the boarding side. However, the upper pin 21 is provided on the side column 17 only at the lower end of the column.

[0041] By having a powerful configuration, the arrangement of the handrail device 12 can be freely set in accordance with the direction of entry into the car on each floor, and can be easily applied to a two-way entrance elevator. It becomes. In addition, since it is possible to use the common handrail device 12 even when the boarding direction is different, the components of the handrail device 12 can be shared, and the types and costs can be reduced. Is possible. Other than that, the same configuration and effects as any one of the first to third embodiments are obtained.

Example 5

FIG. 22 is a side view of the main part of the elevator car handrail device in Embodiment 5 of the present invention, and FIG. 23 is a front view of the elevator car handrail device shown in FIG. FIG. 6 and FIG. 5 are equivalent diagrams. 22 and 23, a through hole 17a having an axial direction in the same direction as the longitudinal direction of the lower pin 20 and the upper pin 21 is provided at the lower end portion of the vertical column 17. The through hole 17a is formed so as to be disposed above the guide hole 22a of the mounting bracket 22 in the assembled state of the handrail device 12.

[0043] Reference numeral 35 denotes lifting prevention means for preventing the vertical column 17 of the handrail device 12 in the assembled state from moving up and down. This lifting prevention means 35 has a predetermined length. The pin 35a includes a pin 35a and a chain 35b having one end connected to the pin 35a. The other end of the chain 35b is fixed to the side beam 9a by a bolt 36. In the assembled state of the handrail device 12, the pin 35 is passed through the through hole 17 a formed in the upper part of the guide hole 22 a formed in the mounting bracket 22 and the lower end part of the vertical column 17.

[0044] By having a powerful configuration, even when an upward force is applied to the handrail device 12 during maintenance work of the elevator, the pin 35a of the lifting prevention means 35 moves upward from the upper edge of the guide hole 22a. This can surely prevent the handrail device 12 from being lifted up. The rest of the configuration and effects are the same as in any of Examples 1 to 4.

Industrial applicability

[0045] As described above, according to the elevator car upper handrail device that is effective in the present invention, the upper pin provided at the lower end of the vertical frame of the right handrail and the left handrail is provided on the upper arm frame. Because it is possible to prevent the handrail device from overturning in the assembled state by simply engaging the staggered groove from above, assembly work and storage work of the handrail device performed by the maintenance worker on the heel is facilitated. Further, since the handrail device can be simplified, it can be configured at low cost.

Claims

The scope of the claims

[1] A car handrail device that stands on an upper part of a car during elevator maintenance work and is folded and stored on the upper part of the car when not needed, and a handrail device having a handrail and a vertical column that supports the handrail. An upper pin and a lower pin that are provided at the lower end of the vertical column and are arranged above and below in the assembled state of the handrail device, and provided at the upper part of the force lever, so that the lower end of the vertical column is rotatable. A connecting portion that is engaged with one of the upper pin and the lower pin to guide the vertical column in a vertical direction, and the upper pin and the lower pin. An elevator car handrail device characterized by having a restricting portion for restricting rotation of the vertical column in an assembled state of the handrail device by engaging the other of the handrail devices from above.

[2] The connecting portion includes a parallel plate standing upright with a predetermined interval, and the lower end portion of the vertical frame of the handrail device is disposed between the parallel plates, A guide portion having a long hole force and a regulating portion having a groove force that opens upward is formed. The guide portion has a longitudinal direction and one of the upper pin and the lower pin is loosely disposed. The elevator car handrail device according to claim 1.

[3] The handrail device is provided rotatably on at least one of the right handrail and the left handrail disposed on the right and left sides of the upper portion of the car, and is disposed on the rear side of the upper portion of the cage. The rear handrail is placed within one of the right handrail and the left handrail, and the rear handrail is within the thickness of the right handrail and the left handrail. The elevator car handrail device according to claim 1 or 2, characterized in that it is stored.

[4] The connecting portion is provided on a force upper frame disposed above the upper surface of the force cage, and in the assembled state of the handrail device, the vertical frame is placed on the car frame to the handrail device. The elevator car handrail device according to any one of claims 1 to 3, wherein the vertical load acting is supported by the upper frame of the force.

5. The elevator car handrail device according to claim 4, wherein the handrail device in the housed state is horizontally disposed on the car upper frame.

[6] In addition to the upper and lower pins that restrict the rotation of the vertical column in the assembled state of the handrail device 6. The elevator car handrail device according to claim 1, wherein the side is provided only on the vertical column disposed on the boarding side.

[7] The handrail device according to any one of claims 1 to 6, wherein the handrail device is provided detachably with respect to the upper portion of the force cage and can be attached to the car in a reverse direction. Elevator car handrail device.

[8] The elevator according to any one of claims 1 to 7, further comprising a lifting prevention means for restricting the vertical column of the handrail device in the assembled state from moving up and down. A handrail device for data baskets.