JPS632872B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Prior Art> Generally, elevator rope hanging methods include a 1:1 method and a 2:1 method.

The 1:1 method of rope hanging method was developed in 1988-
As shown in Publication No. 176867, one end of the rope is fixed on the car in the elevator hoistway, and the other end of the rope is passed around the deflection wheel and sheave installed in the elevator machine room, and then the elevator is installed. It is suspended over the hoistway and fixed to a counterweight.

The 2:1 method of rope hanging method was developed in 1987-
As shown in Publication No. 49872, one end of the rope is fixed in the machine room of the elevator, the other end of the rope is passed around a pulley provided on the car in the hoistway of the elevator, and then the machine of the elevator is fixed. It is placed in the elevator's machine room, then hung around the deflection wheel and sheave installed in the elevator machine room, and then suspended in the elevator hoistway. The system is to be raised up and fixed in the machine room.

Figures 2 and 3 are explanatory diagrams explaining the conventional rope hooking method using the above-mentioned 2:1 method. Figure 2 is a detailed view of part A in Figure 3 showing the rope fixing part,
The figure is a schematic configuration diagram of an elevator.

In FIG. 3, 1 is a building, and this building 1 is provided with an elevator machine room 2 and an elevator hoistway 3. 4 is a car, 5 is a counterweight, 6 is a sheave installed in the elevator machine room 2, 7 is a deflection wheel, 8 is a pulley on the car, 9 is a pulley on the balance weight side, 10 is a rope, 11 is the elevator machine A car side rope fixing part installed in the chamber 2, 12 is a counterweight side rope fixing part. The rope 10 has one end connected to the car side rope fixing part 1.
1 is fixed to the floor of the elevator machine room 2,
After being wrapped around the car pulley 8, sheave 6, deflection wheel 7, and counterweight side pulley 9, the other end is fixed to the floor of the elevator machine room 2 via the counterweight side rope fixing part 12. There is.

In addition, in FIG. 2 showing the details of part A in FIG.
4, a thimble rod that passes through the hanging plate 16, which is a fixed part; 21, a cotter pin that passes through the thimble rod 13; 20, a first spring seat 17, a spring 18, and a second spring seat 19 that pass through the thimble rod 13; A lock nut 14 supports the thimble rod 13 through the rope 1 for fixing the end of the rope 10 to the counterweight side rope fixing part 12 via the thimble rod 13.
The rope socket 15 is a pin that connects the thimble rod 13 and the rope socket 14.

<Problems to be Solved by the Invention> By the way, among the two methods mentioned above, even if twisting occurs in the rope during rope hanging work, in the 1:1 method, there is no problem with the work, but in the 2:1 method, In a machine, when a rope is tied around and then fixed in a machine room, the lengths of the ropes become uneven because multiple ropes are tied around. Therefore, it is necessary to untwist the rope during the rope hanging operation.

In addition, in both of the above two methods, if the elevator is operated without completely untwisting the rope, the rope will move while rotating, further promoting the twisting state, and the inner twist of the multiple ropes will be the largest. The load of the lifting object is concentrated on the rope. This causes a problem of uneven wear on the rope, sheave, and deflection wheel.

An object of the present invention is to provide an elevator rope untwisting device that can easily and quickly untwist the rope.

<Means for Solving the Problems> In order to achieve this object, the present invention provides a thimble rod connected to the end of a rope to be suspended and moved, a spring attached to the thimble rod, and a spring provided at one end of the spring. A first spring seat, a hanging plate that holds the first spring seat, a second spring seat provided at the other end of the spring, and a second spring seat that is screwed onto the thimble rod. In an elevator rope untwisting device equipped with a lock nut that compresses a spring via a spring seat, the spring is compressed in a second spring seat portion to separate the second spring seat and the lock nut. , a device is provided to allow the thimble rod to rotate freely.

<Operation> Since the present invention is configured as described above,
When passing a rope around a car pulley, sheave, deflection wheel, counterweight pulley, etc., the thimble rod rotates freely, eliminating the need for workers to untwist the rope. The twist can be returned to its natural state.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 is a sectional view showing an embodiment of the rope untwisting device of the present invention. In this figure, 10
is a rope, 13 is a thimble rod, 14 is a rope socket, 15 is a pin, 16 is a hanging plate, 17 is a first spring seat, 18 is a spring, 19 is a second spring seat, 20 is a lock nut, 2
Reference numeral 1 designates split pins, which are, for example, equivalent to those shown in FIG. 2 above.

23 is a tube that passes through the thimble rod 13 and is placed on the second spring seat 19; 22 is a tube that is placed on the second spring seat 19;
A bearing 25 is a push seat for pressing down the second spring seat 19 through the bearing 22, bearing seat 24, and tube 23 with a tightening nut 26. .

Next, the rope untwisting operation performed in the untwisting device of the present invention will be explained.

If the rope is now twisted, the rope untwisting device of the present invention is attached to one of the rope fixing parts as shown in FIG. After installation, tighten the tightening nut 2
When the spring 6 is tightened in the direction of the rope 10, the spring 1 is tightened by the tube 23 through the second spring seat 19.
8 is compressed, the second spring seat 19 and the lock nut 20 are separated, and the load and spring pressure of the elevating body that was received by the lock nut 20 and the second spring seat 19 is transferred to the tightening nut 26 and the push seat 25. Move to. Therefore, the thimble rod 13 is allowed to rotate freely by the bearing 22, and the twist generated in the rope 10 is restored.
This work is performed for the number of ropes provided in the rope fixing section.

In the embodiment described above, the bearing 22 was used to allow the thimble rod 13 to rotate freely, but the same effect can be achieved even if a lubricant or the like is used for the rotating body.

By using this device, there is no need to untwist the rope during rope hanging work, and after the rope is attached to the rope fixing part without being aligned, untwisting the rope can be easily completed in a short time. As a result, work efficiency can be significantly improved. or,
Can prevent uneven wear on ropes, sheaves, and deflector wheels.

<Effects of the Invention> According to the present invention, rope can be untwisted easily and in a short time, and one-sided wear of the rope, steel wheel, deflector wheel, etc. can be prevented, resulting in improved efficiency and quality. It has the remarkable effect of being able to measure

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of the elevator rope untwisting device of the present invention, Figs. 2 and 3 are explanatory views explaining a conventional rope hanging, and Fig. 2 shows the rope fixing part. A detailed view of part A in FIG. 3,
FIG. 3 is a schematic diagram of the elevator. 10...rope, 13...thimble rod, 1
6... Hanging plate, 17... First spring catch,
18...Spring, 19...Second spring seat, 20...Lock nut, 22...Bearing, 23...Cylinder, 25...Press seat, 26...Lock nut.

Claims (1)

[Claims] 1. A thimble rod connected to the end of a rope that suspends and moves the elevating body up and down, a spring attached to this thimble rod, a first spring seat provided at one end of this spring, and this first
a hanging plate that holds a spring seat; a second spring seat provided at the other end of the spring;
and a lock nut that is screwed onto the thimble rod and compresses the spring via the second spring seat, wherein the spring is compressed in the second spring seat. A device for untwisting an elevator rope, comprising: a device for separating the second spring catch and the lock nut to allow free rotation of the thimble rod.