JPH11292423A - Installation device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an installation device for elevactors capable of eliminating the need for installation of a counterweight as an initial work, and reducing cost. SOLUTION: A car frame 6 for main installation is connected to one end of a rope 8 wound around a sheave 12 of a traction machine 4 installed on the top of a hoistway, and a pressing device 15 for giving pressing force to a part of the rope 8, wound around the sheave 12 is provided. Thus, the rope 8 can be interlocked with the sheave 12 during driving the traction machine 4. While the car frame 6 for main installation is elevated and lowered, installation work of apparatuses in the hoistway is performed by using the car frame 6 for main installation as a working scaffold.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator installation apparatus for installing equipment in a hoistway while raising and lowering a car.

[0002]

2. Description of the Related Art A conventional elevator installation apparatus has been assembled according to the following procedure in order to enhance safety and to reduce the operator's fatigue and increase the work efficiency.
That is, as shown in FIG. 4, after the car guide rail 1 and the counterweight guide rail 2 are mounted in the hoistway, the machine room 3 such as the permanent traction machine 4 and the control panel 5 is installed in the machine room 3 of the elevator. Attach the related equipment and connect the low-speed operation circuit. Next, a permanent car frame 6 and a permanent counterweight 7 to be used as a work table are loaded and assembled, a rope 8 is hung on a traction machine 4, and the permanent car frame 6 is connected to one end of the rope 8. , And the counterweight 7 is connected to the other end. Also, an operation button 10 connected to the control panel 5 via a construction operation cable 9 is attached to the permanent car frame 6 to complete the elevator installation device. After that, the operator who gets into the permanent car frame 6 operates the operation button 10 to operate the traction machine 4 to move the permanent car frame 6 up and down. Was being installed. However, in this elevator installation apparatus, it is necessary to attach the counterweight guide rail 2 before raising and lowering the car frame 6 for permanent installation, and also to lift the counterweight 7 at the initial stage of the work and temporarily attach it to the top of the hoistway. They had to be kept, and the installation efficiency was poor, which was a factor of cost increase.

Therefore, as described in Japanese Patent Application Laid-Open No. 57-175573, the other end of the rope 8 having one end connected to the permanent car frame 6 is fixed to the traction machine 4,
The winding cage is designed to raise and lower the car frame 6 for main construction while winding up, and the installation work of the equipment in the hoistway is performed while raising and lowering the car frame 6 for main construction without providing the counterweight 7 and the guide rail 2 for counterweight. There has been proposed an elevator installation apparatus that performs this operation.

[0004]

However, in the conventional elevator installation apparatus, the rope 8 may be damaged when the elevator car frame 6 is moved up and down as a winding drum type. Therefore, a temporary rope must be used. In addition to the use of the temporary rope, it is necessary to replace the temporary rope with a permanent rope after installing the equipment in the hoistway, resulting in an increase in cost.

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator installation apparatus which eliminates the necessity of installing a counterweight guide rail as an initial operation and reduces costs.

[0006]

According to the present invention, in order to achieve the above object, a permanent car frame is connected to one end of a rope wound around a sheave of a traction machine, and the traction machine is driven to drive the book. In an elevator installation device for installing equipment in a hoistway while raising and lowering an installation car frame, the rope is interlocked with the sheave when the traction machine is driven, corresponding to the rope of a portion wound around the sheave. A pressing means for applying a pressing force is provided.

As described above, the elevator installation apparatus of the present invention has a pressing means for applying a pressing force corresponding to the rope wound around the sheave so that the rope interlocks with the sheave when the traction machine is driven. Because it is provided, it becomes possible to drive the traction machine at the stage where this pressing means is attached and to raise and lower the permanent car frame, and it is not necessary to attach a counterweight weight guide rail at the initial work stage as in the past, Moreover, since it is not a winding drum type as in the past, it is possible to use a main rope.
Costs can be reduced by reducing the number of work steps.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing an elevator installation apparatus according to an embodiment of the present invention. On the guide rail 1 for the car installed in the hoistway, there is a car frame 6 for permanent construction.
The rope 8 having one end connected to the permanent car frame 6 is wound around a sheave 12 and a deflector 13 of the permanent traction machine 4 arranged in the machine room 3 of the elevator. The other end is suspended in the hoistway and connected to a lightweight weight 14 for preventing twisting and loosening. The traction machine 4 is connected to a control panel 5 arranged in the machine room 3 and a low-speed operation circuit, and an operation button 1 connected to the control panel 5 via a construction operation cable 9 is connected to a permanent car frame 6.
The traction machine 4 can be operated at a low speed when the operation button 10 is operated by a worker who is mounted on the car frame 6 for permanent installation. Traction machine 4
A predetermined pressing force is applied to the rope 8 wound around the sheave 12 by the pressing means 15.

Next, the details of the pressing means 15 will be described with reference to FIG. 2 which is an enlarged view of a main part of FIG. 1 and FIG. 3 which is a cross-sectional view taken along line AA of FIG. The pressing means 15 has a long body 16 having both ends fixed to the base 4 a of the traction machine 4 so as to apply a pressing force toward the outer peripheral surface of the sheave 12, and is rotatably attached to the long body 16. And a plurality of rollers 17 formed of an elastic material such as urethane rubber so as to contact the rope 8. As shown in FIG. 3, the elongated body 16 includes a strip 16a, a shaft 16d for rotatably supporting a plurality of rollers 17 on the strip 16a, and round bars 16b respectively connected to both ends of the strip 16a. And a spring member 16c for imparting elasticity to the belt-like portion 16a. A predetermined pressing force is applied to the rope 8 via the roller 17 by the spring member 16c. Thus, when the traction machine 4 is driven by the pressing means 15, the rope 8 is synchronized with the turning operation of the sheave 12. It is configured to travel.

Next, an assembling operation of an elevator installation apparatus for installing equipment in a hoistway will be described. First, the traction machine 4 and the control panel 5 are lifted up to the machine room 3 and installed using a lifting device such as a winch (not shown). After that, the car guide rails 1 are sequentially connected below the hoistway 11, and the hoistway is lifted for the entire stroke using the lifting device, and the car guide rail 1 located at the uppermost position is fixed from the machine room 3. . Next, the permanent car frame 6 is assembled at the lowermost part of the car guide rail 1, and one end of the rope 8 wrapped around the sheave 12 and the deflector 13 of the traction machine 4 and suspended from the machine room 3 is used for permanent construction. It is connected to the upper part of the car frame 6, while the other end of the rope 8 is suspended in the hoistway 11 and a lightweight weight 14 for preventing the rope 8 from being loosened and twisted is attached.

Thereafter, as shown in FIG. 2, a pressing means 15 is attached to the rope 8 wound around the sheave 12 of the traction machine 4. The pressing means 15 is adjusted so that the roller 17 applies a predetermined pressing force to the rope 8 by the spring member 16 c, and the rope 8 travels in conjunction with the rotation of the sheave 12 when the traction machine 4 is driven. ing. Accordingly, when the traction machine 4 is driven, the permanent car frame 6 is moved up and down by the rotation of the sheave 12, and when the traction machine 4 is stopped, the permanent car frame 6 is moved.
Is stopped, the rope 8 does not cause a rope slip with respect to the sheave 12, and the permanent car frame 6 does not drop. As described above, since the permanent car frame 6 can be moved up and down from the initial stage of the operation before connecting the counterweight to the rope 8, an entrance device (not shown) installed at the opening 18 on the top floor shown in FIG. Can be installed while using the permanent car frame 6 as a work table.

After that, with the permanent car frame 6 raised to the top floor, the lightweight weight 14 is removed and the rope 8
Attach the guide rail 2 for the counterweight, and then drive the traction machine 4 so that the car frame 6 for lowering is lowered to lift the guide rail 2 for the counterweight, and the guide for the counterweight is provided. Rail 2
Is fixed in the same manner as the car guide rail 1. After fixing the guide rail 2 for the counterweight,
At the bottom of the hoistway 11, the counterweight is incorporated into the counterweight guide rail 2, the end of the rope 8 is connected to the counterweight, and the pressing means 15 is removed to complete the operation.

According to the elevator installation apparatus described above,
A rope 8 having one end connected to the permanent car frame 6 is wrapped around a sheave 12 of the traction machine 4, and a pressing means 15 is provided around the wrapping portion so that the rope 8 rotates when the traction machine 4 is driven. As a result, the permanent car frame 6 serving as a working table can be moved up and down without attaching the counterweight guide rail 2 at the initial stage as in the related art. Also,
Since the counterweight is suspended above the hoistway as in the prior art and is not temporarily installed, or the rope 8 is not damaged as a winding drum type, a permanent installation rope can be used, and the installation cost can be reduced by reducing man-hours. it can. Further, since the roller 7 is formed of an elastic body such as urethane rubber as the pressing means 15, the rope 8 can be further prevented from being damaged.

The pressing means 15 in the above-described embodiment may have any structure as long as it presses the rope 8 against the sheave 12 so as to interlock with the sheave 12 when the traction machine 4 is driven. Spring members 1 at both ends
6c is attached, but the spring member 16c may be provided only at one end of the strip 16a and the other end may be fixed, and various configurations can be adopted.

In the above-described embodiment, the hoistway 1
(1) The example in which the traction machine 4 is installed in the upper machine room 3 has been described. The same effect can be obtained by providing.

[0016]

As described above, the elevator installation apparatus according to the present invention connects the permanent car frame to one end of the rope wound around the sheave of the traction machine,
Pushing means is provided to press the rope at the part wrapped around the sheave so as to interlock with the sheave when the traction machine is driven. It is not necessary to install a guide rail for counterweight from the beginning of work as in the past, and it is not a conventional winding type, so it is possible to prevent damage to the rope and The use of ropes becomes possible, and the number of work steps and cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a hoistway showing an elevator installation apparatus according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of the elevator installation device shown in FIG.

3 is a cross-sectional view of the elevator installation device shown in FIG. 2 taken along line AA.

FIG. 4 is a longitudinal sectional view of a hoistway showing a conventional elevator installation apparatus.

[Explanation of symbols]

 Reference Signs List 4 traction machine 6 permanent car frame 8 rope 11 hoistway 12 sheave 15 pressing means 16 long body 17 roller

Claims (3)

[Claims] 1. A permanent car frame is connected to one end of a rope wrapped around a sheave of a traction machine, and the equipment in the hoistway is installed while driving the traction machine to raise and lower the permanent car frame. In the elevator installation device to be performed, corresponding to the rope of the portion wound around the sheave, a pressing means for applying a pressing force so that the rope is interlocked with the sheave when the traction machine is driven is provided. Elevator installation equipment. 2. The device according to claim 1, wherein the pressing means has an elongated body having both ends fixed to a base portion of the traction machine, and is rotatably attached to the elongated body and wound around the sheave. An elevator installation device, comprising: a roller that abuts on the rope at a portion where the rope has come into contact; and a spring member that applies a pressing force to the roller on the roller. 3. An elevator installation apparatus according to claim 2, wherein said roller is made of an elastic material.