JPH06156931A - Main rope passing method for elevator - Google Patents

Abstract

PURPOSE:To provide the main rope passing method for elevator capable of performing main rope passing work without necessitating troublesome work and sliding of the main rope into the groove of a sheave. CONSTITUTION:After a car frame 10 and a counterbalance weight 5 are assembled into the bottom of a hoistway 1, one end of a hoisting rope 6 is connected to the counterbalance weight 5, the other end of the hoisting rope 6 is wound up by a winch 9 to hoist the counterbalance weight 5 to the top of the hoistway 1, and the main rope 4 is stretched between the car frame 10 and the counterbalance weight 5 through a sheave 3 of a winch. By this, even a worker who is not familiar relatively with a work can perform the work. Thus wear on the groove of the sheave when the work is performed, can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of hanging a main rope between an elevator car and a counterweight when the elevator is installed.

[0002]

2. Description of the Related Art When installing an elevator, install a main rope in the hoistway that has a counterweight attached to one end.
A main rope that winds around a sheave of a hoisting machine installed in the machine room at the upper end of the hoistway and rides the other end of the main rope into a car arranged at the lower end of the hoistway to connect the main rope to the car. It requires hanging work.

FIG. 2 is a longitudinal sectional view showing a conventional main rope hanging method.

In the conventional main rope hanging method, the main rope 4 is wound around the sheave 3 of the hoisting machine disposed in the machine room 2 at the upper end of the hoistway 1, and one end of the main rope 4 is attached. A balance weight 5 incorporated in the lower part of the hoistway 1 is connected. One end of a hoisting rope 6 is connected to the counterweight 5, and the hoisting rope 6 extends toward the upper part of the hoistway 1 and is wound around a deflecting wheel 7 provided in the machine room 2. And extends below the hoistway 1. Further, the other end of the lifting rope 6 extended downward in the hoistway 1 in this manner is wound around a deflecting wheel 8 provided in the hoistway 1 and led out of the hoistway 1 to winch 9. Wrapped around. The winch 9 is installed at the same height position as the work floor 11 assembled on the lower part of the hoistway 1 and assembled on the upper part of the car frame 10. A weight 1 for connecting the main rope 4 to the car frame 10 is provided at the other end of the main rope 4 wound around the sheave 3.
2 is attached.

The main rope hanging work performed by the conventional main rope hanging method is performed by a first operator who operates the winch 9 and a second operator who sends the main rope 4 in the machine room 2. Requires. First, when the first operator operates the winch 9 and winds the other end of the hoisting rope 6, the counterweight 5 is hoisted through the hoisting rope 6, and the sheave 3 is lifted by the hoisting of the counterweight 5. The main rope 4 wound around is slack. At this time, the second operator sends the main rope 4 toward the car frame 10 in accordance with the moving distance of the counterweight 5.

As described above, in the conventional main rope hanging method, the timing of the operation of the winch 9 by the first operator and the operation of feeding the main rope 4 by the second operator are matched to each other. The main rope 4 is connected to the car frame 10 by making the other end side of the car rope 10 approach the car frame 10 in the hoistway 1 without colliding with or entwining with the hoistway device.

[0007]

By the way, in the above-described conventional elevator main rope hanging method, the timing between the operation of the winch 9 by the first operator and the feeding operation of the main rope 4 by the second operator. However, there is a problem that the work is complicated and requires skill of the operator. In addition, when the main rope 4 is fed, the main rope 4 moves while sliding in the groove of the sheave 3, which causes a problem that the groove of the sheave 3 is worn.

The present invention has been made in view of the actual situation in the prior art as described above, and the purpose thereof is to carry out the main rope hanging work without requiring complicated work and sliding the main rope in the groove of the sheave. The purpose of the present invention is to provide a method for hanging a main rope of an elevator that can perform the above.

[0009]

To achieve this object, the present invention provides a main rope hook for an elevator in which a main rope is hung between a car frame and a counterweight provided in a hoistway through a sheave of a hoist. In the method, after incorporating the car frame and the counterweight in the lower part of the hoistway, one end of the lifting rope is connected to the counterweight, and the other end of the lifting rope is wound by a winch to remove the counterweight. The main rope is hung up to the upper part of the hoistway, and then the main rope is hung between the car frame and the counterweight through the sheave.

[0010]

As described above, according to the present invention, after the car frame and the counterweight are incorporated in the lower part of the hoistway, one end of the hoisting rope is connected to the counterweight and the other end of the hoisting rope is connected. The winch is operated to wind up the hoisting rope to hoist the counterweight to the upper part of the hoistway, and then the main rope is wound around the sheave of the hoist, and the end of the main rope is moved to the car. It is designed to be hung on each of the frame and the counterweight. As a result, the main rope hanging operation can be performed without the need for complicated operations such as the main rope feeding operation. Further, since the balance weight is hung up to the upper part of the hoistway, and the main rope is wound around the sheave after the end of the main rope reaches the car frame and the balance weight, respectively, the main rope is wound around the sheave. The main rope hooking work can be performed without the need to slide the sheave into the sheave groove.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for hanging a main rope of an elevator according to the present invention will be described below with reference to the drawings. FIG. 1 is a vertical cross-sectional view showing an embodiment of a method of hanging an elevator main rope according to the present invention. The same components as those shown in FIG. 2 described above are designated by the same reference numerals. That is, 1 is a hoistway, 2 is a machine room, 3 is a sheave of a hoisting machine, 4 is a main rope, 5 is a counterweight, 6 is a lifting rope, 7 and 8 are deflector wheels, 9
Is a winch, 10 is a car frame, and 11 is a work floor.

In the main rope hanging method of this embodiment, as shown in FIG. 1, a scaffold 15 is provided between a bracket 13 fixed to the hoistway wall 1a and a floor 14 on the uppermost floor. There is.

In this embodiment, after the car frame 10 and the counterweight 5 are installed in the lower part of the hoistway 1, one end of the lifting rope 6 is connected to the counterweight 5.
Next, the operator operates the winch 9 to lift the lifting rope 6.
By winding up, the balance weight 5 is lifted from the position shown by the dotted line in FIG. 1 to the upper part of the hoistway 1 shown by the solid line,
After this, the scaffold 15 is hung between the bracket 13 and the floor 14 on the top floor. Then, in the machine room 2, the middle portion of the main rope 4 is wrapped around the sheave 3, and one end of the main rope 4 is dropped to the car frame 10 side and the other end is dropped to the counterweight 5 side,
Next, one end of the main rope 4 is connected to the car frame 10 at the lower part of the hoistway 1, and the other end of the main rope 4 is connected to the counterweight 5 on the scaffold 15.
After that, the scaffold 15 is removed and the main rope hanging work is completed.

In the embodiment constructed as described above, the main rope hanging work can be performed without requiring a complicated work such as a feeding work of the main rope. In addition, since the counterweight 5 is hung up to the upper part of the hoistway 1 and the ends of the main rope 4 reach the car frame 10 and the counterweight 5, respectively, the main rope 4 is wound around the sheave 3. It is possible to carry out the main rope hooking work without the need to slide the groove into the groove of the sheave 3.

[0015]

Since the present invention is constructed as described above, it is possible to carry out the main rope hanging work without requiring a complicated work, whereby an operator who is relatively unskilled in the work can carry out the main rope hanging work. You can do the work. Also,
It is possible to carry out the main rope hanging work without requiring the main rope to slide in the groove of the sheave, and thus to prevent the groove of the sheave from being worn during the main rope hanging work. The effect is that you can.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an example of a method of hanging a main rope of an elevator according to the present invention.

FIG. 2 is a vertical cross-sectional view showing a conventional method of hanging a main rope of an elevator.

[Explanation of symbols]

 1 hoistway 3 sheave 4 main rope 5 counterweight 6 lifting rope 9 winch 10 car frame

Claims (1)

[Claims] 1. A method of hanging a main rope between a car frame and a counterweight provided in a hoistway via a sheave of a hoist, wherein the car frame and the counterweight are provided at a lower part of the hoistway. After assembling, one end of the hoisting rope is connected to the counterweight, and the other end of the hoisting rope is wound by a winch to hoist the counterweight to the upper part of the hoistway, and then the main rope is A method for hanging a main rope of an elevator, characterized in that the rope is hung between the car frame and the counterweight via a sheave.