JPH03120183A - Workbench for elevator installation - Google Patents

Abstract

PURPOSE:To shorten a time for assembly and disassembly work with a temporary part reduced by providing a baseboard of a main unit in the periphery of a hood, which constitutes a roof of an elevator cage room of the main unit, while two upper and lower handrails parallel to the upper part of an upper beam in a cage frame of the main unit. CONSTITUTION:In a setting up work bench of an elevator, a drop-preventing main unit baseboard 5c is provided in the periphery of a hood 5b for constituting a roof of a main unit elevator cage room 5, while a main unit parapet 8 as a safety rack is provided along the periphery of the hood 5b in the upper part of an upper beam 1b in an elevator cage frame 1. Accordingly, by providing the main unit baseboard 5c and the main unit handrail 8 in the upper part of the hood 5b of the main unit cage room 5 to be used as an upper part work bench while by utilizing the cage room 5 as a lower part work bench, work is safey performed. By decreasing a temporary part, work time for assembly and disassembly is reduced, while the cost of transportation of carrying in-out and warehouse storage control is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an elevator installation workbench on which installation work is performed without using scaffolding.

[Prior Art] Elevators are often installed using scaffolding boards with scaffolding pipes erected in the hoistway.

However, this method requires a great deal of labor to assemble the scaffolding, the scaffolding obstructs the delivery of materials, and it is dangerous and difficult for workers to move up and down. For this reason, the guide rails are installed at the beginning of the installation, and then the installation work is carried out while operating a temporary workbench installed on the permanent elevator car frame or the elevator car floor.

As a conventional workbench for installing this type of elevator, there is a technique disclosed in Japanese Patent Publication No. 16287/1987.

FIG. 4 is a perspective view showing a conventional elevator installation workbench.

In the figure, (1) is the main elevator car frame that constitutes the outer frame of the elevator car, with two opposing vertical frames (1)
An upper beam (1b) is horizontally connected to the upper end of a). (
2) is the permanent elevator car floor attached to the lower part of the elevator car frame (1), (3) is the gray water installed on the outer edge of the upper surface of the elevator car floor (2), and (4) is the One end is attached to the center of the upper surface of the upper beam (1b), and the other end is a hoisting lobe fixed to a counterweight via a hoisting machine in a machine room (not shown). (7) is a toga installed hanging down on the entrance/exit side of the elevator car floor (2);
It is de.

(12) is an upper workbench installed on the upper surface of the upper beam (1b), which includes a temporary workbench (12a) removably attached to the upper surface of the upper beam (1b), and a temporary workbench installed on the outside of this upper surface. It consists of a gray water tank (12b) and a temporary handrail (12c) surrounded by wooden or steel plates along its outer edge. (13) is the elevator car floor (
2), the elevator car floor (2), the gray water (3), and the elevator car floor (2).
) is formed by a handrail (13a) made of a wooden or steel plate and erected along the outer edge of the handrail (13a).

(10) is the work floor (12a) of the upper workbench (12)
The hoisting rope (4
) This is a temporary protective ceiling attached to the roof, with a frame made of steel L plates and covered with mesh steel plates. (11) is a counterweight contact prevention wire mesh whose upper end is attached to the protective ceiling (10) and which hangs down and is attached to the sides of the upper workbench (12) and the lower workbench (13), respectively. This is to avoid the danger of leaning out from the upper workbench (12) or lower workbench (13) and colliding with the counterweight that moves up and down in opposition.

Next, the assembly of the conventional elevator installation workbench constructed as described above will be described.

The guide rails (not shown) connected in sequence are fixed in advance to the lower part of the hoistway and set upright in the hoistway.

Here, the permanent elevator car frame (1) and elevator car floor (2) are assembled between the two guide rails. Then, move the temporary upper workbench (12) to the elevator car frame (
1) Assemble on top of the upper beam (1b). In assembling this upper workbench (12), first, the workfloor (12a)
is attached to the upper beam (1b) with bolts (not shown), and then a greywater (12b) is erected on the outer edge of the work floor (12a) to prevent objects from falling, and a handrail is installed on the outside of it. Assemble (12c) and complete. In addition, the gray water (12
b) is set at a height that prevents objects from falling, and the height of the handrail (12c) is set at a height of 7 to allow workers to work safely.
It is desirable to have at least 5c. Next, a temporary handrail (13a) is attached to the outer periphery of the upper surface of the elevator car floor (2) with the permanent gray water (3), and a temporary lower work platform (1) is installed.
3) Make. This handrail (13a) is also the upper workbench (12)
As with the handrail (12c), it is desirable to have at least 750+g++a. After installing the upper and lower work platforms in this way, the hoisting rope (4) is connected to the counterweight via a hoisting machine in the machine room (not shown), and the hoisting rope (4)
A protective ceiling (10) is installed to catch objects falling from above. And the protective ceiling (10), the upper workbench (12)
A counterweight contact prevention wire mesh (11) is attached to the side surface of the lower workbench (13) facing the counterweight, and the installation workbench is completed.

In the above, the protective ceiling (10), the counterweight contact prevention wire mesh (11), and the handrails (13a) of the upper workbench (12) and the lower workbench (13) are removed after the elevator installation is completed.

In the above-mentioned workbench, the upper workbench (12) is used for most of the work such as installing rail brackets and centering guide rails, while the lower workbench (13) is used to mainly store elevator parts, installation tools, etc. Used for transporting floors.

[Problems to be Solved by the Invention] Since the conventional elevator installation workbench is constructed as described above, there are many temporary parts, and a great deal of labor is required to assemble and dismantle them. In addition, a large amount of cost was required for transporting these temporary items in and out, as well as storing and managing them in warehouses.

Therefore, the present invention provides an elevator installation work that can reduce the number of temporary items and shorten the assembly and disassembly work time, as well as reduce the cost of loading and unloading transportation, warehouse storage, and management. The challenge is to provide a stand.

[Means for Solving the Problems] The elevator installation workbench according to the present invention is provided with a fall prevention frame around the canopy constituting the ceiling of the elevator car room, and with a safety frame provided on the top of the upper beam of the elevator car frame. It has a fence.

[Function] In the present invention, the canopy of the elevator car is used as an upper workbench for installation, and the fall prevention frame provided around the canopy prevents installation tools etc. from falling. The safety fence installed on the floor allows workers to work safely. After installation, this safety fence will be used as a safety fence for maintenance work. Further, the elevator car is used as a lower workbench mainly for transporting elevator parts and installation tools to upper floors. Each of these workbenches will not be removed after installation and will continue to be used as part of the permanent installation.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

FIG. 1 is a perspective view showing an elevator installation workbench according to an embodiment of the present invention, FIG. 2 is a detailed view of the elevator car compartment shown in FIG. 1, and FIG. 3 is a safety view of an embodiment of the present invention. It is a perspective view showing one state in maintenance work of a fence.

In the figure, (1) is the elevator car frame, and the two opposite
An upper beam (1b) is horizontally connected to the upper end of the vertical frame (1a) of the book. (2) is an elevator car floor attached to the lower part of the elevator car frame (1); (3) is gray water installed on the outer edge of the upper surface of the elevator car floor (2);
) is a hoisting rope whose one end is attached to the center of the upper surface of the upper beam (1b) and whose other end is fixed to a counterweight via a hoisting machine in a machine room (not shown).

(5) is a permanent elevator car room installed above the elevator car floor (2), and 4 of the elevator car floor (2).
A vertical wall (5a) erected at a corner, a canopy (5b) mounted on the upper end of the vertical wall (5a), and a gray water (5c) erected on the outer periphery of the canopy (5b). and an entrance/exit post (5e) attached to the entrance/exit (5d). The height of the gray water (5C) is usually 100 mm or more.

(6) is a protective cover that covers the entrance (5d) of the elevator car (5), and during installation work, welding sparks, concrete debris, etc. enter the elevator car (5) through this entrance (5d). This is to prevent

(7) is a toe guard fixed to a sill (5f) attached to the lower end of the elevator car floor (2) on the entrance/exit side.

(8) is a bracket (9) on the left and right sides of the upper surface of the upper beam (1b).
) is a handrail consisting of two parallel upper and lower rectangular bars, and is formed into a rectangular shape along the outer periphery of the canopy (5b) of the elevator car (5). This handrail (8)
After attaching the side frame (8a) to the bracket (9), attach the doorway frame (8b) to the front end and the rear frame (8b) to the rear end.
c) is attached by bolts or the like. however,
The entrance frame (8b) is attached to the canopy (5b) during installation work.
It is removably attached to the top for workers to get on and off. The height of this handrail (8) is 750 mm as in the conventional example.
It is desirable to keep 111- or more. An upper workbench is constituted by the canopy (5b), gray water (5c), and handrail (8) of the elevator car room (5). In addition,
The elevator cab (5) is used as a lower workbench during installation work.

(10) is a temporary protective ceiling installed above the handrail (8) above the canopy (5b) at a position higher than the worker's height to prevent falling objects. It is lined with steel plates. (11) is a counterweight contact prevention wire mesh attached to the side surface of the handrail (8) and the protective ceiling (10) facing the counterweight.

Next, the use of the elevator installation workbench of this embodiment configured as described above will be explained.

Canopy (5b) of elevator car room (5), Nakamoto (5c)
As in the conventional example, most of the work, such as mounting the rail bracket and centering and fixing the guide rail, is performed on the upper workbench consisting of the handrail and handrail (8). In addition, the entrance/exit frame (8b) of the handrail (8), which is removable for workers to get on and off the canopy (5b), should be removed during maintenance work, taking into account the effort required to install and remove it and the content of the maintenance work. It may be removed as appropriate, and the state at this time is shown in FIG.

On the other hand, the elevator car room (5), which serves as a lower workbench, is mainly used for transporting elevator parts, installation tools, etc. to the upper floors. During these transportation operations, since the elevator car room (5) is surrounded by the vertical wall (5a), the work can be carried out safely without falling from the elevator car floor (2). In addition, the elevator car room (
Since the entrance (5d) in 5) is covered with a protective cover (6), welding sparks, concrete debris, etc. can be spilled from this entrance (5d) into the elevator car room (5) during installation work.
This prevents them from entering the interior and damaging the designed parts.

Note that, like the conventional example, falling objects from above are caught by the protective ceiling (10). Further, the counterweight contact prevention wire mesh (11) prevents the worker from leaning out from the handrail (8) and colliding with the counterweight moving up and down in opposition, thereby ensuring the safety of the worker.

In the above, the protective cover (6), the protective ceiling (10), and the counterweight contact prevention wire mesh (11) are removed after the elevator installation is completed.

In this way, the elevator installation workbench of the above embodiment has a canopy (5b) constituting the ceiling of the elevator car (5).
) to prevent falls, and a handrail (8) as a safety fence is installed at the top of the upper beam (1b) of the elevator car frame (1) along the periphery of the canopy (5b).
It has been established.

Therefore, according to the above embodiment, the bookcase (5c) and the handrail (8) are provided on the upper part of the canopy (5b) of the elevator car room (5), which is used as an upper workbench, and the elevator car By using the chamber (5) as a lower workbench, the worker can work safely. Since the number of temporary items is reduced, it is possible to shorten the assembly and disassembly work time, and it is also possible to reduce the cost of carrying in and out, and the cost of storage and management in a warehouse.

By the way, the handrail (8) of the above embodiment has two parallel upper and lower parts.
Although it is made up of square rods of books, when carrying out the present invention, it is not limited to this, and a larger number of parallel square rods may be used, or it can be made of round vibrators, etc. You may. Alternatively, it is also possible to stretch a net between these rods or to construct them from a single plate; in short, any structure that can prevent workers from falling will suffice.

[Effects of the Invention] As described above, the elevator installation workbench of the present invention has the following advantages:
A fall prevention frame is installed around the canopy that makes up the ceiling of the elevator car, and a safety fence is installed at the top of the upper beam of the elevator car frame. By using the canopy of the existing elevator car as an upper work platform and the elevator car as a lower work platform, workers can work safely. Since the number of temporary items can be reduced, it is possible to shorten the assembly and disassembly work time, and it is also possible to reduce costs for carrying in and out, storage in a warehouse, and management.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an elevator installation workbench according to an embodiment of the present invention, FIG. 2 is a detailed view of the elevator car chamber shown in FIG. 1, and FIG. FIG. 4 is a perspective view showing a state of maintenance work of a safety fence on an elevator installation workbench. FIG. 4 is a perspective view showing a conventional elevator installation workbench. In the figure, 1: Elevator car frame 1b: Upper beam 5: Elevator car room 5b Two canopies 5c: Nakamoto 8: Handrail. In the drawings, the same reference numerals and the same symbols indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] An elevator car floor disposed on an elevator car frame, an elevator car room assembled thereon, and a canopy that constitutes the ceiling of the elevator car room and is provided with a fall prevention frame around the upper surface. , A workbench for installing an elevator, characterized in that it is equipped with a safety fence provided at the top of the upper beam of an elevator car frame.