JP2000351569A - Scaffold device for maintenance work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the scaffold device for a maintenance work by which the maintenance work is carried out safely with a simple structure without applying the processing to a building. SOLUTION: A pair of parent rope fixing stands 19, 20 are fixed by utilizing the machine room opening 28 of the entrances 2A, 2B of an upper escalator 2 and a first parent rope 21 and third parent rope 24 are streched on the parent rope fixing stands 19, 20 and a second parent rope 22 and life rope 23 are installed on the first parent rope 21 and the parent rope 25 for winch 25 having a winch 26 and storing cage 27 is installed on the third parent rope 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold for maintenance work which is particularly suitable for maintenance work of an escalator.

[0002]

2. Description of the Related Art Generally, in the case of an escalator, when another escalator is installed above the escalator, lighting equipment such as a fluorescent lamp for illuminating the lower part of the escalator located above may be provided. When performing maintenance work such as inspection and cleaning, a high work platform is installed on the steps of the lower escalator located below, and the maintenance work is performed by the worker on this high work platform. Was.

[0003]

However, the work platform at a high place installed on the steps of the lower escalator has a structure in which the total height is about 8 m when the distance between the upper escalator and the lower escalator is about 8 m. For this reason, it was necessary to provide a lifeline to workers working on the working platform at a height, but in order to install the lifeline, the building on which the escalator was installed had to be processed.

An object of the present invention is to provide a scaffolding device for maintenance work which can perform maintenance work safely with a simple configuration without processing a building.

[0005]

According to the present invention, in order to achieve the above object, an upper escalator is disposed at a predetermined distance above a lower escalator, and an aerial work platform is provided on a step of the lower escalator. In the scaffolding device for maintenance work that performs maintenance work, a pair of master rope fixing stands are installed on the upper escalator, at least a first parent rope is stretched between these master rope fixing stands, and a second main rope is suspended from the first master rope. It is characterized by connecting a lifeline to a two-parent line.

As described above, the scaffolding device for maintenance work of the present invention is configured such that a pair of main rope fixing frames are installed on the upper escalator, and the life rope is connected to the first main rope stretched between the main rope fixing frames. As a result, the lifeline can be attached with a simple configuration without processing the building, and maintenance work such as lighting provided on the bottom surface of the upper escalator can be performed while ensuring the safety of the operator.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a use state of the scaffolding device for maintenance work according to one embodiment of the present invention.
The lower escalator 1 has an upper truss 3, an intermediate truss 5, and a lower truss 6, and the upper truss 3 has a driving machine 4 and a main driving device 7 connected by a drive chain 11.
, A step chain gear 8 is arranged in the lower truss 5, and the step chain 1 connecting the main drive device 7 and the step chain gear 8 is connected.
2, the step 9 is driven, and the moving handrail 10 connected to the main drive unit 7 via the handrail chain 13 is driven. Step chain gear 8 and step chain expanding device 14
Functions so that the step chain 12 does not slack,
The handrail pulling wheel 15 functions so that the moving handrail 10 does not slack. The upper escalator 2 installed about 8 m above the lower escalator 1 has the same configuration as the lower escalator 1, and an illumination light 16 such as a fluorescent lamp for illuminating the lower escalator 1 is attached to the bottom surface.

Next, a scaffolding device 17 for maintenance work used for maintenance work of the illumination lamp 16 will be described. Illumination light 16
When performing maintenance work such as replacement, cleaning, inspection, etc., the maintenance work scaffolding device 17 is installed on the lower escalator 1 and the upper escalator 2. This maintenance work scaffolding device 17
It consists of a scaffolding part formed on the lower escalator 1 side and a lifeline supporting part formed on the upper escalator 2 side. The former is an aerial work scaffold 18 installed on the steps 9 of the lower escalator 1 and assembled to a predetermined height. . On the other hand, the latter is composed of main rope fixing frames 19 and 20 installed facing the entrances 2A and 2B of the upper escalator 2 respectively, and a nylon rope made of nylon rope stretched on these main rope fixing frames 19 and 20. A first parent rope 21 and a second parent rope 22 made of a cotton rope with nylon suspended movably along the first parent rope 21.
A lifeline 23 attached to the second mainline 22 and attached to the worker A on the work platform 18 at high places, and a third mainline made of nylon rope with cotton stretched between the mainline fixing stands 19 and 20. 24, a winch master line 25 hangably movable along the third master line 24, and a winch master line 25
And a storage basket 27 such as a member to be raised and lowered by the winch 26.

Since the main rope fixing frames 19 and 20 have the same configuration, the main rope fixing frames 19 will be described with reference to FIG. 2 which is a front view and FIG. 3 which is a side view. A fixing member 30 made of an L-shaped steel material which is detachably attached to a pair of frames 29A and 29B provided at an edge of a machine room opening 28 provided at an entrance 2A of the upper escalator 2 with screws or the like.
A, 30B, 30C, and 30D, and a portal pipe made of a square pipe steel material.
B, and the lower end is fixed to the fixing members 30C, 3C.
A support member 32 made of a square pipe steel material whose upper end is fixed to the vertical frame 31 by welding to 0D, and a reinforcing diagonal member made of an L-shaped steel material which is disposed between legs of the vertical frame 31 and is fixed with screws or the like. 33, and a main rope mounting portion 34 which is located above the vertical frame 31 and protrudes outward from both legs of the vertical frame 31. The main rope mounting portion 34 includes a first main rope 21 and a second main rope. Eyebolts for attaching the three parent ropes 24 are respectively attached.

Next, a case will be described in which the maintenance work of the illumination lamp 16 of the upper escalator 2 is performed by using the maintenance work scaffolding device 17. First, as shown in FIG. 1, the high work platform 17 is set on the step 9 of the lower escalator 1, and the anchoring frames 19, 20 are fixed to the machine room openings of the entrances 2A, 2B of the upper escalator 2, respectively. I do. Next, the main rope fixing portions 19 and 20 of the main rope fixing bases 19 and 20 are attached.
The first master rope 21 and the third master rope 24 are respectively stretched between the four, and one end of the second master rope 22 is attached to the first master rope 21, and one end of the winch master rope 25 is attached to the third master rope 24.
Thereafter, the worker A who got on the upper part of the aerial work scaffold 18
One end of the lifeline 23 is fixed in the middle of the second parent line 22, and the other end of the lifeline 23 is connected to a safety belt or the like attached to the user.

Here, the first parent rope 21 and the third parent rope 24
Is connected between the main rope mounting portions 34 projecting sideways to the vertical frames 31 of the main rope fixing bases 19 and 20.
Can protrude sideways from the moving handrail 10 of the upper escalator 2, and the lifeline 23 and the second masterline 22
Thus, even if the worker A is suspended from the first master rope 21 via the first master rope 21, it is possible to prevent the moving handrail 10 and the like from being damaged by the first master rope 21. In addition, parent rope attachment part 3
Even if the projecting distance of 4 is small, it is possible to easily prevent the moving handrail 10 and the like from being damaged by sandwiching the interference member between the first master rope 21 and the moving handrail 10.

In this state, the worker A is working on the platform
The maintenance work of the lighting lamp 16 is performed from above. At this time, about 8
m, the work can be done safely using the lifeline 23. When a new lamp or the like is to be transferred to the worker A on the work platform at a high place 18 in place of the removed lamp 16, the winch 26 and the storage basket 2 are attached to the winch main line 25.
When the device 7 is attached, a member such as a new illumination lamp can be put in the storage basket 27 and can be raised and lowered by operating the winch 26. As described above, since the second master rope 22 and the winch master rope 25 are movable along the first master rope 21 and the third master rope 24, the respective connecting portions are adjusted to the position of the worker A. It can be moved and used in a desired positional relationship.

In this way, the main rope fixing frames 19, 20 are fixed using the machine room openings of the entrances 2A, 2B of the upper escalator 2, and at least the first main rope 21 is fixed between the main rope fixing frames 19, 20. The first main rope 21 is used to fix the life rope 23, so that the life rope 23 can be attached with a simple configuration without processing the building, and the worker can be safely and efficiently operated. The maintenance work of the illumination lamp 16 provided on the bottom surface of the upper escalator 2 can be performed well.

In the above-described embodiment, the main rope fixing bases 19, 20 are connected to the entrances 2A, 2B of the upper escalator 2.
Is fixed by using the opening of the machine room, but the main rope fixing bases 19 and 20 may be fixed by using members existing in the vicinity thereof.

[0015]

As described above, in the scaffolding apparatus for maintenance work according to the present invention, a pair of main rope fixing stands are installed on the upper escalator, and a first main rope is stretched between the main rope fixing stands. Because the lifeline is connected to the main line, the lifeline can be attached with a simple configuration without processing the building, and maintenance work such as lighting provided on the bottom of the upper escalator while maintaining worker safety Can be.

[Brief description of the drawings]

FIG. 1 is a side view showing an installation state of a scaffolding device for maintenance work according to an embodiment of the present invention.

FIG. 2 is a front view of a main rope fixing base which is a main part of the maintenance work scaffolding device shown in FIG.

FIG. 3 is a side view of the master rope fixed base shown in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower escalator 2 Upper escalator 2A, 2B Entrance / exit 19, 20 Main line fixed stand 21 First main line 22 Second main line 23 Lifeline 24 Third main line 25 Main line for winch

Continued on the front page (72) Inventor Ryo Kuwahara 1-25-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo F-term (reference) 2E003 DA02 3F321 HA03

Claims (5)

[Claims] 1. A maintenance work scaffolding device in which an upper escalator is disposed at a predetermined distance above a lower escalator and a high work platform is installed on a step of the lower escalator to perform maintenance work. Maintenance work characterized in that a pair of master rope fixed stands are installed in the main rope, and at least a first master rope is stretched between these parent rope fixed stands, and a life rope is connected to a second parent rope hanging from the first master rope. For scaffolding equipment. 2. The scaffolding device for maintenance work according to claim 1, wherein the main rope fixing stand is fixed by using a machine room opening provided at a doorway of the upper escalator. 3. The scaffolding device according to claim 1, wherein the second master rope is movably mounted on the first master rope. 4. The system according to claim 1, wherein a third main line is attached to the two main line fixing frames, and a winch main line is movably provided on the third main line. Scaffolding equipment for maintenance work. 5. The fixing device according to claim 2, wherein the master rope fixing base is detachably fixed to an edge of the machine room opening, a vertical member fixed to the fixing member, and a vertical member fixed to the fixing member. A scaffolding device for maintenance work, comprising: a support member that supports the base member and is fixed to the fixing member; and a master rope mounting portion that protrudes outward from the vertical member.