JPS63349B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rope elevator equipped with a lobe rest.

Generally, in a rope-type elevator, as shown in Fig. 1, the main rope 3 connects the upper parts of the elevator car 1 and the counterweight 2, and the main rope 3 is connected by rotating a hoisting pulley 4 fixed to the upper part. Car 1 is moved up and down.
Furthermore, a compensating rope 12 is provided at the bottom of the car 1 and the weight 2 to compensate for unbalance due to the rope's own weight. In addition, 11 in FIG. 1 is a balance wheel.

In the above-mentioned rope elevator, which has a long lifting distance, the length of the main rope 3 and the compensation rope 12 is long, and the length may be 200 m or more.
As the rope becomes longer, the lateral displacement of the rope tends to increase as well. For this reason, if the rope is long in an outdoor elevator, strong winds can cause the rope to be displaced laterally and hit or get caught in the hoistway, damaging the rope and other equipment. There are things to do.

How to prevent the elevator rope from rolling:
Conventionally, the displacement of the rope was reduced by increasing the tension of the rope. However, in elevators with long ropes, there is a limit to the lateral displacement that can be prevented by increasing the tension.
Further, increasing the tension more than necessary is not preferable because it has a negative effect on the life of the rope.

The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to provide a rope elevator equipped with a rope steadying device that prevents the rope from swinging horizontally without increasing the rope tension.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings in a case where displacement of the main rope on the car side becomes a problem.

FIG. 2 is a schematic diagram showing a case where the elevator car 1 is located at the top floor. In Figure 2,
1 is the elevator car, 3 is the main rope, 4 is the main rope hoisting pulley, 5 and 6 are the hoisting pulleys 4
This is a hoisting pulley for a rope steadying device installed coaxially with the rope. Also, 9 and 10 are on the rope,
This is a steady rest device, and is suspended by steady rest device ropes 7 and 8 that are hung around hoisting pulleys 5 and 6. In this embodiment, the diameter of the steady rest device pulleys 5 and 6 is the same as that of the main rope hoisting pulley 4.
They are 1/3 and 2/3 of the diameter of. The other ends of the ropes 7 and 8 for steady rest devices are each fixed to the ceiling of the hoistway via balance weights.

Therefore, as shown in FIG. 3, when the car 1 is lowered by about 150 m from the top floor, the upper and lower rope steady devices 9 and 10 are lowered by 50 m and 100 m, respectively. For this reason, the steady rest device 9,
Reference numeral 10 denotes a position where the main rope 3 is divided into three parts in the length direction, and since the lateral displacement of the main rope 3 is restrained, the maximum displacement of the main rope 3 can be effectively reduced.

FIG. 4 is a horizontal sectional view showing an embodiment of the rope steadying device. This steady rest device 9 or 1
0 has a frame 13 that restrains the swing of the main rope 3, and as the steady rest device rope 7 moves, the frame 1
The structure is such that a roller 14 installed at 3 can roll on a hoistway wall 15 and move up and down.

Since the hoisting pulleys 5 and 6 of the steady rest devices 9 and 10 are coaxial with the hoisting pulley 4 of the main rope 3, the steady rest devices 9 and 10 move in the vertical direction in conjunction with the operation of the elevator car 1. Therefore, it is always located between the elevator car 1 and the hoisting machine. Therefore, even if the elevator moves from the top floor to the bottom floor, the operation of the elevator car 1 is not hindered.

In addition, although the example mentioned above showed the example of deceleration of the steady rest device by a hoisting pulley, this invention may use other deceleration mechanisms, such as a gear. Further, in the above-described embodiment, the steady rest on the top of the car 1 of the main rope 3 is explained, but the present invention also applies to the case of the steady rest on the top of the counterweight 2 of the main rope 3 or the compensating rope 12. can be applied, and similar effects can be obtained in this case as well.

As explained above, according to the rope elevator according to the present invention, a plurality of steady rest devices for restraining the lateral displacement of the main rope are disposed in the hoistway so as to be movable up and down in the vertical direction, and the elevator car can be moved up and down. The structure is equipped with a mechanism that works in conjunction with the elevator car and lowers the elevator speed of the car so that each of the steady rest devices moves up and down at a constant interval ratio, so the elevator car can go up and down a long distance, and the main rope can move in the lateral direction. Even if the displacement is large, it is possible to prevent the main rope from lateral shaking at multiple points, ensuring safe elevator movement, and also preventing the main rope from being displaced laterally due to strong winds and causing damage to the hoistway walls and other equipment. This has excellent effects such as there is no risk of damage to the rope or other equipment due to collisions or getting caught.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing a conventional elevator system, and FIG. 2 is a front view showing an embodiment of the present invention.
FIG. 3 is a schematic side view for explaining the operation of the present invention, and FIG. 4 is a horizontal sectional view showing one embodiment of the steady rest device according to the present invention. 1...basket, 2...weight, 3...main rope,
4... Hoisting pulley for main rope, 5, 6... Pulley for steady rest device, 7, 8... Rope for steady rest device, 9, 10... Rope steady rest device, 11...
...Balancing wheel, 12...Compensation rope. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of Claims] 1. In a rope-type elevator that moves up and down in a hoistway by connecting a car and a counterweight to a main rope wound around a hoisting pulley, lateral displacement of the main rope is restrained. A plurality of steady rest devices are disposed in the hoistway so as to be able to rise and fall in the vertical direction, and are linked to the elevation and descent of the elevator car, and are decelerated relative to the elevation speed of the car to maintain a constant distance between the steady rest devices. A rope-type elevator characterized by being equipped with a mechanism that moves up and down at an interval ratio. 2. A rope elevator characterized in that the mechanism for raising and lowering the elevator comprises a plurality of steady rest pulleys of different diameters provided coaxially with the hoisting pulley, and a rope wound around the steady rest pulleys.