JPH0720826B2 - Guide for elevator - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a guide shoe for raising and lowering an elevator car or counterweight along a guide rail.

[Technical background of the invention and its problems]

Generally, a total of four guide shoes for guiding the car are arranged above and below and to the left and right of the car so as to slide with guide rails provided in the hoistway of the elevator. FIG. 4 is a plan view showing the structure of such a guide shoe. In FIG. 4, the guide shoe 2 has a "U" -shaped shoe 3 that is in contact with the guide rail 1 in between, a shoe receiver 4 that incorporates and supports the shoe 3, and the shoe receiver 4 is inserted from the open end. An elastic vibration isolator 6 made of rubber or the like is fitted between the support frame 5 and the shoe receiver 4 to absorb a shock caused by a collision between the guide rail 1 and the shoe 3. By doing so, the riding comfort of the car is improved.

By the way, in such a guide shoe, a stopper for increasing the safety by restricting the relative displacement amount of the shoe receiver 4 with respect to the car against a large load that is suddenly generated due to an earthquake or the like is improved. Is needed.

5a and 5b show a plan view and a side view of such a stopper. The stopper 7 is formed by bending the lower portion of the support frame 5 in the direction of the guide rail 1, and has a recess 7a formed in the central portion, and the guide rail 1 is loosely inserted in the recess 7a. ing. Here, the support frame 5 is supported by a mounting base 8 connected to a car. 6A and 6B are a plan view and a side view showing another configuration example of the stopper 7. In this example, the stopper 7 is formed by bending the support frame 5 from above and below both side surfaces 5a toward the inside of the guide shoe, that is, toward the shoe receiver 4.

However, in the former stopper, the stopper 7
Is facing the rail directly, so the stopper 7
Has collided with the guide rail 1 to cause damage to the guide rail or a collision noise with the guide rail.
Further, in the latter case, both sides of the support frame 5 are bent inward to limit the function of the support frame 5 and serve as stoppers, so that all large loads that occur suddenly, such as loads during an earthquake, are supported. Since the load is applied to both side surfaces 5a of the frame, this portion is easily damaged, and there is a problem that extremely large strength members are required on both side surface portions of the support frame to prevent this.

[Object of the Invention]

The present invention has been made in order to solve the problems of the prior art, and does not damage the guide rail and the stopper even when a sudden large load occurs, and has a simple structure and smooth operation. The purpose is to provide guide shoes.

[Outline of Invention]

In order to achieve the above object, the guide shoe according to the present invention is provided with a stopper on the back surface of the support frame, and the stopper is formed so as to extend in the shoe receiving direction with a predetermined distance from both side surfaces of the shoe receiver. The relative displacement of the shoe receiver with respect to the car is restricted to a predetermined amount or less within the range where the shoe receiver and the stopper come into contact with each other.

Example of Invention

An embodiment of the guide shoe according to the present invention will be specifically described below with reference to FIG.

First, FIG. 1 (a) is a plan view of the present embodiment, and FIG. 1 (b) is a side view thereof, and the same elements as in the conventional example are designated by the same reference numerals.

The guide shoe 9 is in contact with the rail surface of the guide rail so as to sandwich it, and the shoe 3 slides in the longitudinal direction of the guide rail 1, the shoe receiver 4 incorporated to support the shoe 3, and the shoe receiver 4 are inserted. Support frame 10
And the elastic vibration damping material 6 that is fitted between the support frame 10 and the shoe receiver 4 to absorb vibrations, and the support frame 10 is supported by the mounting base 8 fixed to the car. The support frame 10 and the shoe receiver 4 respectively have side surface portions 10a and 4a which are bent substantially at right angles from the rear surface portions 10b and 4b, respectively, and are entirely "ko".
It is formed in a letter shape. The upper portion of the support frame 10 is bent inside the guide shoe 9, that is, in the shoe receiving 4 direction, and this bent portion serves as a stopper 11. The stopper 11 is composed of left and right protruding pieces 11a, 11a and a recess 11b formed in the central portion of these protruding pieces,
The projecting pieces 11a, 11a extend so as to reach both side surfaces 4a, 4a of the shoe receiver 4, and the shoe receiver 4 is inserted into the recess 11b. The side surfaces 4a of the shoe receiver 4 and the protruding piece 11a of the stopper 11 have a predetermined distance d, and the displacement of the shoe receiver 4 is suppressed within the range of the distance d. That is, when the shoe receiver 4 is displaced relative to the car by rocking due to a sudden large load, both side surfaces 4a of the shoe receiver 4 are protruded from the stopper 11.
It abuts against 11a and suppresses further displacement.

Therefore, in the case of such a configuration, the stopper 11 does not contact the guide rail 1 but contacts the shoe receiver 4 mounted so as to surround the guide rail 1, so that the guide rail 1 is not damaged. At the same time, since there is no effect on the contact between the guide rail 1 and the shoe 3, the shoe 3 can slide smoothly. Further, since the predetermined distance d is provided between the stopper 11 and the shoe receiver, the displacement of the shoe receiver 4 is suppressed by a predetermined amount, so that the load applied to the side surface 5a of the support frame 5 is small and the support frame is damaged. There is nothing to do. Therefore, no work is required to reinforce the strength, and the safety is improved. Further, the shoe receiver 4 is brought into contact with the projecting piece 11a of the stopper 11 in the lateral direction, and is received by the widthwise force of the projecting side 11a, so that the section modulus is high and the strength is high.

2A and 2B and 3A and 3B show a plan view and a side view of another embodiment of the present invention. In the embodiment shown in FIG. 2, a stopper 11 is attached to the back surface portion 10b of the support frame 10 so that the head extends in the direction of the shoe receiver 4. Two bolts are planted on the upper and lower sides of the support frame 10 to regulate the shoe receiver 1 at two upper and lower positions.
Further, in the embodiment shown in FIGS. 3 and 4, the stopper 11 is formed of an L-shaped bent plate. This L-shaped bent plate is also on the back surface 10b of the support frame 10.
Are provided above and below, and the shoe receiver 4 is provided in the recess 11b.
b is inserted and the relative displacement of the shoe receiver 4 is regulated by the protruding piece 11a.

Of the above-mentioned three embodiments, the one shown in FIGS. 1 and 3 uses an L-shaped bent plate as a stopper, and therefore secures sufficient strength for suppressing displacement of the shoe receiver. be able to.

Example of Invention

As described above, according to the guide shoe of the present invention, the stopper is attached to the back surface of the support frame that supports the shoe receiver, and the stopper is extended in the shoe receiving direction to restrict the displacement of the shoe receiver. The load applied to the side surface can be reduced, and a simple structure with improved strength can be obtained. Further, even when the shoe receiver comes into contact with the stopper, a smooth function is ensured and the guide rail is not damaged.

Further, according to the guide shoe of the present invention, since it is provided with the stoppers that project from the back surface of the support frame to both outsides of the shoe receiver, as compared with the stopper that projects from the side surface of the support frame in the shoe receiving direction, There is also no need to particularly increase the bending strength of the support frame itself, and there is an effect that reliability and safety can be expected to improve.

[Brief description of drawings]

1 (a) and 1 (b) are a plan view and a side view of one embodiment of the present invention, FIGS. 2 (a) and 2 (b) and FIG. 3 (a),
(B) is a plan view and a side view of another embodiment, FIG. 4 is a plan view showing a general structure of a guide shoe, and FIG.
6 (a) and 6 (b) and FIGS. 6 (a) and 6 (b) are a plan view and a side view showing a configuration example of a conventional device, respectively. 1 ... Guide rail, 2 ... Guide shoe, 3 ... Shoe, 4
… Shoe holder, 6… Elastic vibration damping material, 9… Guide shoe, 10
… Support frame, 11… Stopper

Claims (3)

[Claims] 1. A shoe that slides while sandwiching a guide rail, a shoe receiver into which the shoe is incorporated, and 1
A U-shaped support frame having a pair of side surfaces and a back surface, with the shoe receiver positioned between the side surfaces, and an elastic vibration isolator fitted between the shoe receiver and the support frame. In the elevator guide shoe, the displacement of the shoe receiver is limited to a predetermined amount or less by projecting from the rear surface portion of the support frame to both outsides of the shoe receiver with a predetermined distance from the outer surface of the shoe receiver. A guide shoe for an elevator, characterized by being provided with a stopper. 2. The elevator guide shoe according to claim 1, wherein the stopper comprises a bolt that is planted on the back surface of the support frame. 3. The elevator guide shoe according to claim 1, wherein the stopper is an L-shaped bent plate attached to the back surface of the support frame.