JPH01299181A - Roller guide for elevator - Google Patents

Abstract

PURPOSE:To prevent the shaking of a cage at the time of getting on and off by making rollers installed on a cage guide while leaving a space toward a guide rail during the traveling of the cage and expanding the rollers while bringing same into contact with the guide rail when the cage is stopped. CONSTITUTION:Three guide rollers 4A-4C are rotatably installed by each rotary shaft 5 on a supporting member 3 installed on a cage 2, to guide the cage 2 by means of a guide rail 1 provided on a lifting up/down passage. During the traveling of the cage 2, the guide rail 1 and the guide rollers 4A-4C guide the cage 2 while leaving a proper interval. As the cage 2 is stopped, the damping pieces 9 of the guide rollers 4A-4C are electrified and expanded to be brought into pressure contact with the supporting member 3 of the guide rollers 4A-4C, to prevent the shaking of the cage 2. Thereby, the shaking of the cage while getting on and off can be prevented to give a good ride.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a roller guide for guiding an elevator car.

[Conventional technology]

In general, low-speed elevators use guide shoes that slide on guide rails to guide the car up and down, while medium and high-speed elevators use roller guides that roll on guide rails to guide the car. It is being This is because when a guide shoe is used, vibrations caused by steps or unevenness in the guide rail become impossible to ignore as the speed increases, and running loss due to vibration resistance increases.

This is because from point 02 onwards, medium and high speed elevators require roller guides that have good followability to the guide rail and have little running loss.

4 and 5 are diagrams showing a roller guide of an elevator as disclosed in, for example, Japanese Utility Model Publication No. 18297/1982, and FIG. 4 is a plan view (partially partially).

FIG. 5 is a side view.

In the figure, (1) is a guide rail installed in the hoistway.

(2) is an elevator car, (3) a support fixed to the heel (2), and (4A) to (4C) are bearings (6) on the shaft (5) supported by the support (3). ) and rolls on both sides and the top surface of the guide rail (1).

The conventional elevator roller guide is constructed as described above, and when the car (2) goes up and down, the rollers (4A) to (4
C) guides the heel (2) by rolling on both sides and the top surface of the guide rail fil.

[Problem to be solved by the invention]

In the conventional elevator roller guide as mentioned above,
Since the car (2) is guided by rollers (4A) to (4C), when a passenger gets on or off the heel (2) while it is stopped.

Whereas with a guide shoe, sliding resistance acts.

Since the roller guides (4A) to (4C) have low frictional resistance during transfer, there is a problem in that the car (2) moves up and down, making the ride uncomfortable.

This invention was made in order to solve the above problems, and provides good follow-up to the guide rail.

It is another object of the present invention to provide an elevator roller guide which can reduce vibrations when getting on and off and improve riding comfort.

[Failure to solve the problem]

An elevator roller guide according to the present invention.

The car is guided by the shifting of rollers, and a damper is provided that faces the rollers with a gap between them while the car is running, and expands and presses the rollers when energized while the car is stopped.

[Effect]

In this invention, while the car is running, the damper faces the rollers with a gap in between, so the car is guided by the roller guide. While the car is at rest, the damper expands due to electricity and is pressed against the rollers, creating sliding resistance.

〔Example〕

Figures 1 to 3 are diagrams showing one embodiment of the present invention.
2 is a side view, and FIG. 3 is an enlarged view of the main part of FIG. 1, and the same parts as in the conventional device d are designated by the same reference numerals.

In the figure, (9) is a vibration damper fixed to the support (3), which includes an expansion material (9a) such as a piezoelectric ceramic that is fixed to the support (3) and expands when energized, and a shoe (9a) fixed to this. 9b)
It is made up of. al is a lead wire connected to the expansion material (9a).

In the elevator roller guide configured as described above, the expansion material (9a) is electrically disconnected while the car (2) is running, and a gap is maintained between the shoe (9b) and the rollers (4A) to (4C). The basket (2) is hanging down from the rollers (4A) to (4).
C) is guided by rolling on the guide rail (1). Therefore, the followability to the guide rail El) is good and the running resistance is low.

When the car (2) stops, the expansion material (9a) is connected to the lead wire O.
1 is energized. As a result, the expansion material (9a) expands, the shoe (9b) contacts and presses the rollers (4A) to (4C), and sliding resistance acts against the vertical movement of the car (2). Therefore, when one passenger gets on and off, the camera (2) is restricted from being photographed vertically.

〔Effect of the invention〕

As explained above, in this invention, a damper is provided which faces the rollers with a gap between them while the car is running, and which expands and presses the rollers when energized while the car is stopped, thereby improving the ability to follow the guide rail. well.

It also has the effect of reducing vibrations when passengers get on and off, thereby improving riding comfort.

[Brief explanation of the drawing]

Fig. 1 is a plan view (partially shown) showing an embodiment of an elevator roller guide according to the present invention, Fig. 2 is a side view of Fig. 1, and Fig. 3 is an enlarged view of the main part of Fig. 1. , Figure 4 is a plan view (partially) showing a conventional elevator roller guide.
, FIG. 5 is a side view of FIG. 4. In the figure, (1) is the guide rail, (2) is the basket, (4
A) to (4C) are rollers, (9) is a damper, (9a
) is an intumescent material, and (9b) is a shoe. Note that the same reference numerals in Figure 9 indicate the same parts.

Claims (1)

[Claims] A roller provided on the car is rolled on a guide rail to guide the raising and lowering of the car, and the roller is provided on the car and faces the roller with a gap while the car is running, and is energized while the car is stopped. A roller guide for an elevator, comprising a vibration damper that expands and presses the roller.