JPH10182032A - Elevator installing construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently carry out engaging work between a car cage and a guide rail with ease. SOLUTION: After the lowermost part guide rail 3a is raised, a lower frame 6a is previously engaged with the lowermost guide rail 3a so as to be placed temporarily before an intermediate guide rail is connected, and then, the guide rails are connected together over the whole process. In this procedure, assembly adjustment, which is required in a conventional one, for a guide rail is not required in assembly of a car cage, and workability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing a small elevator having a guide rail manufactured by bending.

[0002]

2. Description of the Related Art A conventional example of this type of elevator is disclosed in Japanese Patent Publication No. 7-55777.

In this conventional elevator installation method, a temporary hoisting machine for installation is installed at the top of a hoistway, and the hoisting machine is used to sequentially connect guide rails and lift the guide rails to guide the entire hoistway. Erect the rail and temporarily fix it.

Then, after the lowermost guide rail of the guide rails is centered and fixed, it is engaged with the lowermost guide rail to mount a car frame.

[0005]

However, in the conventional installation method, when the car frame is engaged with the guide rail, the guide roller serving as an engaging portion for engaging the car frame with the guide rail is once disassembled. Therefore, there is a problem that fine adjustment of the guide rollers is required, and the working efficiency is deteriorated.

That is, the shape of a guide rail for guiding the elevator of a small elevator car is approximately C-shaped in cross section, and the opposite side extends in a direction perpendicular to the side to increase strength. A lip is formed.

The guide roller is configured so that one side of the opposite side is sandwiched and engaged with two rollers, and the gap between the rollers is substantially equal to the thickness of the one side. It is transported to the installation site in the assembled state.

Therefore, if it is attempted to engage with the guide surface of the guide rail in the assembled state, the above-mentioned collar portion becomes an obstacle and cannot be engaged as it is, so it must be disassembled once.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide an elevator installation method capable of easily and efficiently engaging a car frame with a guide rail.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a plurality of guide rails each having a substantially C-shaped cross section and having a brim portion extending on its corresponding side so as to be perpendicular to this side. In the elevator installation method of connecting and standing on the entire stroke of the hoistway and engaging with this guide rail to assemble the car frame, the lowermost guide rail of the guide rails is erected, and the A guide roller attached to a lower frame forming a lower side is engaged by engaging the side having the flange portion from the upper end of the lowermost guide rail to assemble the lower frame. And

In the present invention, after the lowermost guide rail is erected, the guide roller is installed from the upper end of the lowermost guide rail by sandwiching and engaging the guide rail. The car frame can be engaged with the guide rail without disassembly.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a plan view of a hoistway showing an embodiment of the present invention, and FIGS. 2 to 4 are explanatory views showing work procedures of the embodiment of the present invention.

First, the main structure of an elevator to which the present invention is applied will be described with reference to FIGS. This elevator is a small elevator having a floor of about 5 to 6 floors or less, and guide rails 3 are provided upright on left and right sides of an entrance 2 formed in a wall between a hoistway 1 and a landing. These two guide rails 3 are guide rails each having a substantially C-shaped cross section and having a brim portion extending on the opposite side thereof so as to be perpendicular to this side.
And a plurality of intermediate guide rails 3 b and a top guide rail (not shown) are connected by a connecting plate 4.
A base frame 5 is installed on the bottom of the guide rail 3 of the book. The car frame 6 is installed so as to be able to move up and down along the two guide rails 3, and is composed of a lower frame 6a, a sling 6b and an upper frame 6c. Lower guide rollers 7a and 7b and upper guide rollers 7c and 7d are attached to the lower frame 6a and the upper frame 6c so as to engage with the guide rail 3.

Next, a procedure of an installation operation using the installation apparatus of the present invention will be described with reference to FIGS.

(1) A hoist (not shown) is installed at the top of the hoistway to carry the components of the elevator.

(2) As shown in FIG. 2, the base frame 5 is centered and fixed at the lowermost portion of the hoistway 1, and the lowermost guide rail 3a is erected on the base frame 5.

(3) Lower frame 6a using the upper hoist
And lower guide rollers 7a and 7b attached to the lower frame 6a are adjusted in advance at the factory so that the lower guide rails 3a are sandwiched between the upper end portions of the lowermost guide rails 3a and engaged with the lowermost guide rails 3a. The lower frame 6a is suspended and temporarily placed on a buffer table 8 attached to the base frame 5, as shown in FIG.

(4) Thereafter, as shown in FIG. 4, the guide rails 3 are lifted by a hoist, the intermediate guide rails 3b are connected to the lowermost guide rails 3a, and the guide rails 3 are moved along the entire hoistway. Temporarily fix.

(5) Between the temporarily fixed left and right facing guide rails 3, the lower frame 6 previously engaged and temporarily placed
The sling 6b and the upper frame 6c are assembled on the basis of a, and the car frame 6 is installed on the guide rail 3 so as to be able to move up and down. At this time, since the upper guide rollers 7c and 7d do not pinch the guide rail 3, the guide rail 3 does not need to be disassembled when engaged.
Can be engaged.

(6) Thereafter, the car frame 6 and the hoist (not shown) are connected by a rope via an upper pulley (not shown),
The elevator is installed on the work floor by installing the work floor using the car frame 6.

As described above, in the present embodiment, after the lowermost guide rail 3a is erected as described above, the lower frame 6a is previously engaged with the lowermost guide rail 3a before the intermediate guide rail 3b is connected. By temporarily placing the guide rails 3 and then connecting the guide rails 3 over the entire process, the assembly adjustment of the guide rollers does not occur at the time of assembling the car frame as in the related art, and the workability is improved. .

[0023]

As is apparent from the above description, according to the present invention, after the lowermost guide rail is erected, the guide roller is clamped from the upper end of the lowermost guide rail. Since the installation method is combined, the car frame can be engaged with the guide rail without disassembling the guide roller, and the engaging operation between the car frame and the guide rail can be easily and efficiently performed.

[Brief description of the drawings]

FIG. 1 is a hoistway plan view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a work procedure according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a work procedure according to an embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a work procedure according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hoistway 2 Doorway 3 Guide rail 3a Lowermost guide rail 6 Car frame 6a Lower frame 7a, 7b Lower guide roller

Claims (1)

[Claims] 1. A plurality of guide rails each having a substantially C-shaped cross section and having a brim portion extending on the corresponding side thereof so as to be perpendicular to the side are sequentially connected to stand on the entire stroke of the hoistway. In an elevator installation method for assembling a car frame by engaging with a rail, the lowermost guide rail of the guide rails is erected,
By assembling the lower frame by engaging a guide roller attached to a lower frame forming the lower side of the car frame so as to sandwich the side having the flange portion from the upper end of the lowermost guide rail. An elevator installation method characterized by performing: