JP3630596B2 - How to hang an elevator rope - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for hooking an elevator rope having a car lower pulley under a car frame.
[0002]
[Prior art]
Conventional elevators having a car lower pulley at the lower part of a car frame are known, for example, as described in JP-A-7-10437 and JP-A-11-130365. This will be described with reference to FIG. 2 which is a cross-sectional view of the road.
[0003]
A work scaffold (not shown) is assembled over the entire process of the hoistway 1, and the guide rails 2 for the car are attached to both side walls of the hoistway 1 using the work scaffold, and the entrance / exit part 3 is attached to the entrance / exit of the hoistway 1. To do. If these elevator apparatuses are attached over the entire process of the hoistway 1, then the car frame 4 is assembled between the guide rails 2, and the work scaffold that disturbs this work is dismantled. After dismantling the work scaffold, the car frame 4 is assembled and a car lower pulley 4a is provided at the lower part thereof. Thereafter, the counterweight 5 is assembled at a predetermined position, and the traction machine 7 is arranged in the lower part 1a of the hoistway 1. On the other hand, in the uppermost floor hall 1c, for example, the jumping type described in JP-A-9-194160 Is installed on the side wall of the top portion 1b of the hoistway 1 from the spring-type work scaffold 30, and turning pulleys 8a and 8b are attached to the pulley beam 8, and then the rope hanging work Is doing.
[0004]
In this rope hanging work, one end 6a of the rope 6 is connected to the pulley beam 8 and then hung down and hung on the car lower pulley 4a, and then raised and hung on the turning pulley 8a, hung again and hung on the traction machine 7 this time. Thereafter, it is raised again and hooked on the turning pulley 8 b and the weight upper pulley 5 a of the counterweight 5, and the other end 6 b is connected to the pulley beam 8.
[0005]
[Problems to be solved by the invention]
However, the above-described conventional elevator rope-hanging method disassembles the work scaffold in order to incorporate the car frame 4 into the car guide rail 2, so that when the rope is subsequently hooked, the jump-type work scaffold is used as the top floor hall. It must be installed from 1c, and it is necessary to prepare a pop-up type work scaffold that is a temporary product, or to transport it to the top floor hall 1c only for rope hanging work, and to improve work efficiency. Not only was it bad, but because it was a temporary product, it was not economical due to equipment costs.
[0006]
An object of the present invention is to provide an elevator rope mounting method that can be installed efficiently without using a spring-type work scaffold or the like.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention forms a car by arranging a car frame between car guide rails arranged in a hoistway, and a turning pulley provided at the upper part of the hoistway and the car frame. In the elevator rope construction method in which at least a rope is hung between the lower pulleys of the car provided in the lower part of the elevator, a work scaffold is assembled over substantially the entire stroke of the hoistway, and a predetermined platform in the hoistway is used by using the work scaffold. After installing the equipment, temporarily fix the car lower pulley excluding the car frame to the car guide rail, and use the work scaffold to hang the rope between the car lower pulley and the turning pulley. And after dismantling the work scaffold, the car frame is assembled and the car lower pulley removed from the car guide rail is fixed to the car frame. That.
[0008]
In the elevator rope hanging method according to the present invention, as described above, the car frame is not assembled between the car guide rails in order to carry the rope, but only the car lower pulley is not assembled without assembling the car frame. Because it was temporarily fixed to the rail, the work scaffold that was previously in the way when the car frame was installed between the guide rails for the car was not disassembled, and it was used above the hoistway using this work scaffold. Can be roped. Therefore, the spring-type work scaffold that is conventionally required for hooking the rope above the hoistway becomes unnecessary, and the work efficiency using the work scaffold can be improved.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view of an elevator hoistway during assembly work that employs an elevator rope hanging method according to an embodiment of the present invention.
On the building side of the hoistway 1, a plurality of floors of elevator doorways are formed, and a pair of car guide rails 2 are fixed to the left and right hoistway walls as viewed from the doorway. A pair of counterweight guide rails 12 are fixed on the back side of the. In the assembled state, the car is arranged so as to be guided up and down along the car guide rail 2, and the counterweight 5 is arranged along the counterweight guide rail 12. A pulley beam 8 is fixed to the wall of the upper part 1b of the hoistway 1 by an appropriate fixing means. The pulley beam 8 supports turning pulleys 8a and 8b, and both ends 6a and 6b of the rope 6 which will be described in detail later. Each is fixed. On the other hand, the traction machine 7 is installed in the bottom part 1a of the hoistway 1, and the machine room formed in the upper part of the hoistway 1 is abbreviate | omitted in the general elevator.
[0010]
Next, an operation procedure for assembling each component of the elevator in the hoistway 1 described above will be described.
First, the machine base 11 is fixed to the bottom 1a of the hoistway 1, and the traction machine 7 is installed on the machine base 11, and the car guide rail 2, the counterweight guide rail 12, the counterweight 5 and the like are raised and lowered. Temporarily placed on the bottom 1 a of the road 1. Next, the work scaffold 10 is assembled over almost the entire process of the hoistway 1 and fixed to the hoistway wall while connecting the plurality of guide rails 2 and 12 until reaching a predetermined length using the work scaffold 10, Attach the entrance part 3 and the like to the entrance. A pulley beam 8 is fixed to the elevating wall at the top of the work scaffold 10, and turning pulleys 8 a and 8 b are attached to the pulley beam 8. In this way, the installation of predetermined equipment in the hoistway 1 is completed.
[0011]
When this mounting work is completed, the work frame 10 that has been an obstacle to the assembly of the car frame has been dismantled because the car frame has been conventionally assembled between the car guide rails 2. However, here, the work scaffold 10 is not disassembled, and the rope 6 is laid while using the work scaffold 10. Thus, the work scaffold 10 assembled in the hoistway 1 can be continuously used to perform installation work of predetermined equipment in the hoistway 1 and hanging work of the rope 6 over the entire process of the hoistway 1. it can.
[0012]
That is, in order to lay the rope 6, first, the counterweight 5 that is connected to the car frame (not shown) and the rope 6 via the rope 6 is lifted above the hoistway 1 by the lifting equipment (not shown). A weight upper pulley 5a is attached to the upper portion of the counterweight 5 in advance, or after that. Further, the car lower pulley 4 a to be attached to the lower part of the car frame is detachably supported and fixed to the car guide rail 2 located below the hoistway 1 through the pulley support member 20.
[0013]
In this state, the rope 6 is hung from the bottom 1a of the hoistway 1 to the traction machine 7 and the car lower pulley 4a, and the rope 6 is hung from the top of the work scaffold 10 to the turning pulleys 8a and 8b and the weight upper pulley 5a. At the top of the scaffold 10, both ends 6 a and 6 b of the rope 6 are connected to a pulley beam 8 fixed near the top 1 b of the hoistway 1. Accordingly, the rope 6 having one end 6a connected to the pulley beam 8 is once suspended and hung on the car lower pulley 4a, then raised and hung on the turning pulley 8a, and again hung on the pulley of the traction machine 7 fixed to the bottom 1a. After winding and further rising and hanging on the turning pulley 8b and the weight upper pulley 5a, the other end 6b is connected to the pulley beam 8, and the laying operation is completed. Since the laying operation of the rope 6 can be performed using the work scaffold 10, it can be performed relatively easily in a short time.
[0014]
After the work of laying the rope 6, the work scaffold 10 is completely disassembled and removed, and then the car frame (not shown) is assembled on the car lower pulley 4a while being engaged with the car guide rail 2. Finally, the car lower pulley 4a is separated from the car guide rail 2, and the car lower pulley 4a is fixed to the lower part of the assembled car frame. At this time, the pulley support member 20 may be removed, or may be fixed to the car frame together with the car lower pulley 4a. In any case, the connection structure when the car lower pulley 4a is temporarily fixed to the car guide rail 2 may be considered in advance so that the car lower pulley 4a can be connected to the car frame thereafter.
[0015]
Since the car lower pulley 4a is temporarily fixed to the car guide rail 2 before assembling the car frame between the car guide rails 2 in this way, the work scaffold 10 can be roped as it is without being disassembled. Since it can be used, there is no need to prepare a spring-type work scaffolding, etc., which is a temporary product, and it is not necessary to place it on the upper part of the hoistway. become able to.
[0016]
In the above-described embodiment, the turning pulleys 8a and 8b and both ends 6a and 6b of the rope 6 are fixed to one pulley beam 8. However, the car lower pulley 4a is provided at the lower part of the car frame, and at the upper part of the hoistway. The present invention can be applied to any configuration that involves a rope hanging operation.
[0017]
【The invention's effect】
As described above, the elevator rope hanging method according to the present invention dismantles the work platform assembled for mounting a predetermined device in the hoistway in a state where the car lower pulley is temporarily fixed to the car guide rail. The work scaffolding can be used to perform the rope hanging work without the need to do so, so that the work scaffold can be used efficiently for the rope hanging work as well as the conventional method. There is no need to prepare a work platform or the like, or to place it on the upper part of the hoistway, so that the installation work can be performed relatively easily.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a hoistway showing a state in the middle of work adopting an elevator rope hanging method according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a hoistway showing a state in the middle of work adopting a conventional elevator rope hanging method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hoistway 1a Bottom part 1b Top part 2 Car guide rail 4a Car lower pulley 6 Rope 6a One end 6b Other end 7 Traction machine 8 Pulley beam 8a, 8b Turning pulley 10 Working scaffold 20 Pulley support material

Claims (2)

A car frame is arranged between car guide rails arranged in the hoistway to constitute a car, and at least between a turning pulley provided at the upper part of the hoistway and a car lower pulley provided at the lower part of the car frame. In the elevator rope construction method constructed by hanging a rope, after assembling a work scaffold over almost the entire process of the hoistway and attaching predetermined equipment in the hoistway using the work scaffold, the elevator car Temporarily fixing the car lower pulley excluding the car frame to the guide rail, performing the work of hanging the rope between the car lower pulley and the turning pulley using the work scaffold, dismantling the work scaffold, A method of hooking an elevator rope, comprising assembling the car frame and fixing the car lower pulley removed from the car guide rail to the car frame. Two turning pulleys are arranged at the upper part of the elevator hoistway, a traction machine is arranged at the bottom of the hoistway, and the lower part of the car frame that moves up and down along the car guide rail by the rope driven by this traction machine An elevator rope hanging method in which a lower pulley is provided on a car, and the rope having both ends connected to the upper part of the hoistway is hung between the turning pulley and the lower pulley, and the traction machine is connected to the hoistway. Installed on the bottom, installed a work platform over almost the entire process of the hoistway, and after using this work platform to attach the specified equipment in the hoistway including the guide rail, attach it to the lower part of the car frame In the state where the pulley under the car is temporarily fixed to the guide rail, the rope is hung, and the work scaffold After dismantling, rope hanging method elevator the car under pulley removed from the passenger cage guide rail assembly the car frame, characterized in that fixed to the car frame.

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