JPH01256484A - Installation practice for elevator - Google Patents

Abstract

PURPOSE:To make installation work in safety and reduce its cost by constituting it so as to use a drum hoist for permanent installation as a power source as it is. CONSTITUTION:A pulley base is fixed in and around an upper end of a lifting passage, and a plum bob is hung down from this base, making this a criterion, and a sill 5 unitized with a support bracket 8 for a guide rail is clamped to each floor entrance part of the lifting passage 1 after its centering. In addition, a pulley is set up in the said pulley base, while the guide rail is slung up by a permanent-installation drum hoist 14 rolled on this pulley, and this guide rail 6 is clamped to the support bracket 8. Next, a permanent-installation pulley 10 is attached to the said pulley, and a permanent-installation cage frame 13 assembled at a lower end of the lifting passage 1 is moved by the hoist 14 with a permanent-installation rope 11, and then various assembly operations are carried out in this moving process. Thus, installation work for an elevator is efficiently and safely performed without assembling any temporary scaffold in the lifting passage 1.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an elevator installation method, and particularly to an elevator installation method suitable for an elevator driven by a drum-type hoist.

<Prior art> An installation method for an elevator driven by a winding drum type hoist is proposed in Japanese Patent Application Laid-Open No. 60-52483. Temporary scaffolding is assembled in a # girder shape at a constant pitch, and various operations such as assembling the required parts are performed on the temporary scaffolding.

<Problems to be Solved by the Invention> Since the area of the hoistway of an elevator driven by a winding drum type hoist is generally narrow, it is not possible to assemble temporary scaffolding in this narrow hoistway and remove it after the assembly of the necessary parts is completed. , which is a complicated work and leads to an increase in installation costs. Furthermore, it is difficult to completely assemble temporary scaffolding in a narrow hoistway, and because the temporary scaffolding is incomplete, there is a risk that workers may fall from the temporary scaffolding during work.

The present invention has been made in view of the elevator installation method proposed above, and its purpose is to provide an elevator installation method that reduces complicated work and also improves the safety of workers during installation work. Our goal is to provide construction methods.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the present invention fixes a pulley base near the upper end of a hoistway, and a first plumb bob hangs from the pulley base into the hoistway. step, and at each floor entrance/exit of the hoistway based on the plumb bob,
The second process involves centering and fixing the sill integrated with the support bracket of the guide rail, and arranging a pulley on the pulley base, and using this pulley to guide the winding drum type winding machine for the main installation. A third step of lifting the rail and fixing the lifted guide rail to the support bracket, assembling a car frame for main installation at the lower end of the hoistway, and attaching the assembled car frame to the winding trunk type for main installation. and a fourth step of assembling the product while lifting it with a hoist and moving it within the hoistway.

Effect> According to the present invention, a pulley base is fixed near the upper end of the hoistway, and the plumb bob is suspended from the pulley base.

Then, based on this plumb stroke, a sill integrated with the support bracket of the guide rail is centered and fixed at the entrance/exit portion of each floor of the hoistway.

Furthermore, a pulley is installed on a pulley base fixed near the upper end of the hoistway, and a guide rail is hoisted up by a main installation winding machine that is wound around this pulley, and this guide rail is attached to a support bracket. Fixed. Next, the main installation lobe is rubbed on the pulley, and the main installation car frame assembled at the lower end of the hoistway is moved by the main installation winding machine using the main installation rope. Various assembly operations are performed during the movement process.

In this way, there is no need to erect temporary scaffolding inside the hoistway.
Elevator installation work can be carried out efficiently and safely.

<Example> Hereinafter, an example of the present invention will be described in detail using FIGS. 1 to 5.

Here, FIG. 1 is a work process diagram showing the procedure of an embodiment of the present invention, FIGS. 2 to 4 are sectional views of a hoistway in each step of the embodiment of the present invention, and FIG. FIG. 3 is a perspective view showing the configuration of each floor entrance/exit section in the embodiment.

In the embodiment, in the first step, the working floor 2 is first assembled on the top floor of the hoistway 1 as shown in FIG.
Attach the pulley base 3 near the upper end of the hoistway using the Unlike the conventional temporary scaffolding that is assembled inside the hoistway 1, this work floor 2 can be easily erected from the floor entrance/exit of the top floor of the hoistway 1. Next, the pulley base 3 is used to lower the lowering shot 4 to the lowest part of the hoistway 1, and the first step is completed.

In the second step, as shown in FIG. 5, at the entrance/exit of each floor, the sill 5 integrated with the support bracket 8 of the guide rail is moved with reference to the plumb bob 4 suspended in the first step. It is centered and fixed to the landing floor 7.

Next, in the third step, as shown in FIG. will be placed. In addition, a temporary pulley 9 is attached to the pulley base 3, and a rope 11 for permanent installation of the winding drum type hoist 14 is hung on this temporary pulley 9, and the winding drum type hoist 14 is driven to The guide rail 6 is lifted up and fixed to the support bracket 8 in the hoistway 1.

Since the guide rail 6 is assembled with a pulley 10 for permanent installation, the guide rail 6 is fixed and the pulley 10 for permanent installation is attached to the pulley base 3 in place of the temporary pulley 9. Next, the intermediate guide rail 18 connected to the lower end of the fixed uppermost guide rail 6 is lifted, and fixed to the support bracket 8 in the hoistway 1 with the upper end connected to the guide rail 6. be done.

Similarly, the lowermost guide rail 19 is lifted up, and with its upper end connected to the guide rail 18, the hoistway 1
It is fixed to the support bracket 8 inside.

Next, in the fourth step, as shown in FIG.
The car frame 13 for permanent installation is assembled near the lowest end of the car frame 13, and the end of the rope 11 for main installation is attached to the assembled car frame 13.
Fixed to. This car frame 13 is provided with a safety handrail 20 for the safety of workers, and an operation box 17 connected to a control panel 15 with a temporary cable 16 for operating the winding drum hoist 14. It will be done.

Note that the work floor 2 is dismantled and removed before and after the car frame 13 is assembled. Then, a worker gets on the car frame 13 and operates the winding drum type hoist 14 using the operation box 17.
The car frame 13 is stopped at a required position, and various operations such as assembly of entrance/exit parts and equipment in the hoistway 1, wiring in the hoistway 1, etc. are performed. After completion of these assembly and wiring operations, test runs and adjustment operations are performed to complete the fourth step, and the elevator installation work according to the embodiment is completed.

In this way, according to the embodiment, there is no need to assemble temporary scaffolding inside the hoistway 1 as in the past, and each work is performed while moving the car frame 13, so the work can be done easily and efficiently. Costs are reduced and worker safety is ensured. During this work, the winding drum type hoist 1 for the main installation
4 is used as the power source, there is no need to remove the power source after the installation work is completed, and the cost of the installation work is significantly reduced.

In addition, although the embodiment describes a method in which a temporary pulley is first attached to the pulley base and then this temporary pulley is replaced with a pulley for permanent installation, the present invention is not limited to the embodiment. , the pulley for permanent installation can be removed from the pulley base from the beginning.

<Effects of the Invention> As explained in detail above, according to the present invention, by using the winding drum type hoist for permanent installation as a power source without providing temporary scaffolding in the hoistway, workers can Elevators can be installed safely and at low installation costs.

[Brief explanation of the drawing]

Fig. 1 is a work process diagram showing the procedure of an embodiment of the present invention;
4 to 4 are cross-sectional views of the hoistway at each step in the embodiment of the present invention, and FIG. 5 is a perspective view showing the structure of each floor entrance/exit portion in the embodiment of the present invention. 1...Hoistway, 2...Working floor, 3...
...Pulley base, 4...Plumb bob, 5.
... Sill, 6, 18, 19 ... Guide rail, 7 ... Landing floor, 8 ... Support bracket, 10 ... Pulley, 11... Rope, 12... Machine room, 13... Car frame, 14... Winding drum hoist.

Claims (1)

[Claims] A first step of fixing a pulley base near the upper end of the hoistway and suspending a plumbble from the pulley base into the hoistway; , a second step of centering and fixing the sill integrated with the support bracket of the guide rail, and arranging a pulley on the pulley base, and using this pulley with a winding drum type winding machine for the main installation. A third step of lifting the guide rail and fixing the lifted guide rail to the support bracket, assembling a car frame for main installation at the lower end of the hoistway, and attaching the assembled car frame to the winding drum for main installation. A fourth step of assembling the elevator while lifting it with a hoisting machine and moving it within the hoistway.