JPS6160225B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a work scaffold for installing an elevator,
In particular, the present invention relates to an elevator installation method suitable for installing rails, landing parts, etc. in an elevator hoistway, and performing piping and wiring work.

FIG. 1 is an explanatory diagram showing a conventional elevator installation work scaffold, in which vertical scaffolding members 2 and horizontal scaffolding members 3 are assembled in a cross-shaped structure over the entire length of a hoistway 1, and are placed at each work position. After installing the landing parts etc. on the scaffolding board 4 and performing piping and wiring work, the entire vertical scaffolding material 2 and horizontal scaffolding material 3 assembled in the shape of a grid are disassembled and removed, and the boarding frame and It is designed to attach weights.

This elevator installation method, which involves installing scaffolding materials in a fixed manner, is a simple and efficient construction method when installing an elevator in a low-rise building.
As the buildings used for comparison become taller, the labor required for workers to move up and down increases, which significantly impedes work efficiency. Furthermore, it is necessary to erect scaffolding over the entire length of the hoistway 1, which requires a large amount of scaffolding material and is accompanied by many dangers when it is disassembled.

Therefore, as another conventional elevator installation method, after the rails are installed in the hoistway, the car frame guided by the rail is moved up and down by a hoist installed in the machine room, and the worker climbs onto the car frame. The installation of the landing section and the piping wiring work in the hoistway can be carried out by using the above-mentioned method, or by installing a support on the rail installed in the hoistway and installing a scaffold on this support. It has been proposed that the installation work is carried out using However, this elevator installation method assumes that the rails are installed in the hoistway, and therefore, when installing the rails, it is necessary to construct a fixed scaffold similar to the conventional method, which is doubly labor-intensive. Not only that, but the fixed scaffold must be dismantled immediately, which is extremely time consuming and inefficient.

Furthermore, as another conventional elevator installation method, a method has been proposed in which the installation work is carried out by repeatedly fixing and removing a scaffolding member that is movable within the hoistway for each floor. However, in this elevator installation method, it is not only necessary to move the scaffolding members for each floor, but also because the scaffolding members only form a single scaffolding position. There is a problem in that installation work at a position considerably higher than the landing floor is difficult.

SUMMARY OF THE INVENTION An object of the present invention is to provide a work scaffold for elevator installation that can reduce risks associated with elevator installation work and improve work efficiency.

The present invention provides a frame member movably disposed in an elevator hoistway, a support fixed at a position corresponding to a landing floor surface of a hoistway wall opposite to the landing floor side, and an upper end of the frame member. It is provided in the section so that it can be expanded and contracted freely.
A steady rest whose tip part contacts the hoistway walls on all sides during work, and which is housed in the frame member when the frame member moves, and a lower end of the frame member that can protrude and retract from the landing floor surface. a receiving member which is provided in the support member, is provided in the support member and is placed between the hall floor surface and the support tool during work, supports the frame member and is housed in the frame member when the frame member is moved; It is composed of a pin fixed to a support, and a working scaffold member formed in multiple stages at a predetermined interval on the frame member between the receiving member and the steady rest, and once a relatively small scaffold is assembled, Thereafter, by raising the scaffolds one after another without the need for assembling the scaffolds, the elevator installation work can be carried out easily, quickly, and safely.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is an explanatory diagram showing an embodiment of the elevator installation work scaffold according to the present invention. Hoistway wall 1
1, a support 1 is installed at a level equal to the landing floor 12.
3 is fixed by an anchor bolt 14. A scaffolding structure 20 is supported on the landing floor 12 and the supports 13, and in consideration of installation workability and the like, the height of this embodiment is about the same as that of a second floor floor. Similar supports 13A are provided on the hoistway wall 11 above the supports 13 at every height interval of the scaffold structures 20.

As shown in detail in FIGS. 3 and 4, the scaffolding structure 20 is equipped with a pedestal 21 that is a receiving member placed on the landing floor 12 and the support 13,
The pedestal 21 is expanded or contracted according to the dimensions of the hoistway, and is made up of a first member 21A and a second member 21B that are mutually slidable in the axial direction in order to be able to protrude and retract from the hall floor 12. One end of 21A is fixed to the support 13 by a pin 15, and the second member 2
1B is pulled out from the first member 21A and installed on the upper surface of the hall floor 12. A scaffold support member 22 is connected to this pedestal 21 in a cross-shaped configuration. The scaffold support member 22 includes a mounting part 22A and a support part 22B, and the mounting part 22A is mounted on the first member 21A of the pedestal 21 so as to slide relative to the pedestal 21 according to the internal dimensions of the hoistway. It's summery.
The support part 22B of the scaffolding support member 22 is formed into a cylindrical shape, and after the lower end of the vertical scaffolding member 23 is inserted,
It is designed to be fixed by an insert bolt 24. Horizontal scaffolding members 25 are attached to the middle part of the vertical scaffolding members 23 at predetermined intervals. These vertical scaffolding members 23 and horizontal scaffolding members 25 constitute a frame member. A steady rest 26 is provided at the upper end of the vertical scaffold. The steady rest 26 can be expanded and contracted with respect to the hoistway wall 11, and when the scaffolding structure 20 is fixed, it is expanded and fixed with the fixing bolts 26A with the tip pressed against the four hoistway walls 11. , when the scaffolding structure 20 is moved, it is in a reduced state. Pedestal 21 and horizontal scaffolding material 2
Scaffolding boards 27, which are working scaffolding members, are spanned over 5, and in this embodiment, they form a first scaffolding position 28A, a second scaffolding position 28B, and a third scaffolding position 28C, respectively.

Further, an electric winch 30 is fixed to the landing floor 12, and a rope 33 is wound around safes 31 and 32 installed on the hoistway wall 11 and the ceiling of the machine room, so that the tip of the rope 33 is connected to the scaffolding structure 2. is connected to the upper end of the That is, the scaffolding structure 20 moves inside the hoistway by driving the electric winch 30.
It is movable as shown in the figure.

Next, the operation of the above embodiment will be explained. The scaffolding structure 20 includes a vertical scaffolding material 23 and a horizontal scaffolding material 2.
5 is assembled, the pedestal 21 is supported by the landing floor 12 and the support 13, and is stably held in the hoistway by the steady rest 26. This scaffolding structure 20 allows workers to form 28A, 28B, and 28C to
Installation work will be carried out within the floor level range.

When the installation work within the range of about the second floor is completed in this way, the steady rest 26 of the scaffolding structure 20 is reduced and stored in the horizontal scaffolding member 25, and the scaffolding structure is The body 20 is slightly lifted and the second member 2 of the pedestal 21 is
1B stored inside the first member 21A,
The scaffolding structure 20 is raised by about two floors using the electric winch 30, the pedestal 21 is supported on the landing floor above and the new support 13A, and the installation work is carried out at that position in the same manner as described above. In this way, the scaffolding structures 20 are sequentially fixed and removed from the hoistway wall 11 to perform installation work over the entire length of the hoistway.

According to the above embodiment, the relatively small-scale scaffolding structure allows installation work in the hoistway to be performed safely and with high efficiency, and the assembly and disassembly work of the scaffolding structure is also facilitated.

FIG. 6 is an explanatory diagram showing a pedestal 41 that is a modified version of the pedestal 21 in the above embodiment. This pedestal 41 consists of a first member 42 fixed to the support 13 and a second member 43 placed on the landing floor 12. The first
It is connected to member 42. That is, according to this pedestal 41, when the pedestal 41 is lifted, the second member 43 naturally falls downward, becomes a contracted state, and becomes movable in the hoistway, and when supporting a scaffolding structure, it is prevented from rotating. The first member 4 by the portion 45
2 and the second member 43 are held horizontally, it is possible to shorten the solidity and movement time of the scaffold structure.

In the above embodiment, the predetermined length of the scaffolding structure was set to approximately two floors, but the predetermined length may be determined to improve installation efficiency depending on the relationship with the overall length of the hoistway to which the present invention is applied. It needs to be set to a height such that

As described above, the work scaffold for elevator installation according to the present invention has a scaffold structure of a predetermined length provided with a plurality of scaffold positions at each work position in the hoistway that is separated in the height direction. Since the equipment is moved and fixed to the hoistway wall at each work position and the installation work is performed sequentially, it can be moved up and down in the hoistway and has multiple scaffolding positions, allowing the installation work to be performed with high efficiency. It has the effect of being able to.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing a conventional elevator installation work scaffold, FIG. 2 is a side sectional view showing an embodiment of the elevator installation method according to the present invention, FIG. 3 is a perspective view of the same, and FIG. 5 is a side sectional view showing the same working state, and FIG. 6 is a side view showing a modification of the same main part. 11... Hoistway wall, 12... Landing floor, 13...
...Support, 20...Scaffolding structure, 21...Pedestal,
23...Vertical scaffolding material, 25...Horizontal scaffolding material, 26
... Steady rest, 27 ... Scaffolding board, 28A, 28
B, 28C...Scaffolding position.

Claims (1)

[Scope of Claims] 1. A frame member movably arranged in the hoistway of an elevator; A support fixed at a position corresponding to the landing floor surface of the hoistway wall on the opposite side to the landing floor side; The frame a steady rest that is provided at the upper end of the member so as to be expandable and retractable, the tip of which comes into contact with the walls of the hoistway on all sides during operation, and which is housed in the frame member when the frame member is moved; a lower end of the frame member; The frame member is provided so as to be able to appear and retract from the landing floor surface, is spanned between the landing surface surface and the support tool during work, supports the frame member, and is stored in the frame member when the frame member is moved. a receiving member; a pin for fixing the receiving member to the support fitting; a working scaffolding member formed in multiple stages at predetermined intervals on the frame member between the receiving member and the steady rest; A work scaffold for installing an elevator, characterized by comprising: