JPH05193876A - Steady bracing device for elevator cage - Google Patents

Abstract

PURPOSE:To provide a steady bracing device for an elevator cage whereby riding comfortableness can be improved by moderating a shock to passengers due to vibration of the cage. CONSTITUTION:In a steady bracing device for a cage by which vibration of a cage is relaxed by providing cushion materials 7b between the elevator cage 4 and a cage vertical frame 1c, the device is constituted such that the cushion material is mounted in a condition that it is compressed by a predetermined amount and also providing a nonlinear characteristic in a relation between a load and a deflection amount of the cushion material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steady rest device for an elevator cab.

[0002]

2. Description of the Related Art Conventionally, an anti-sway device for a car room has a structure in which an elastically deformable member is provided between a car room of an elevator and a car frame. That is, as shown in FIG.
Is supported by an anti-vibration rubber 5 through a floor receiving frame 2 and a car floor 3 inside a car frame 1 composed of an upper beam 1a, a lower beam 1b and a vertical frame 1c, and an upper vertical frame. It is elastically supported by a steady rest 6 provided between the 1c and the cab 4.

As shown in FIG. 7, the steady rest portion 6 comprises a mounting member 6a attached to the cab 4 and a stopper rubber 6b. The stopper rubber 6b has a clearance in a vertical frame 1c which also serves as a rubber contact portion. Installed or installed with no clearance.

[0004]

However, in the conventional car-chamber steady rest device, the car-chamber 4 and the vertical frame 1 are caused by vibrations generated while the elevator is moving up and down and an unbalanced load of the load.
When the displacement occurs with respect to c, the stopper rubber 6b in the vibration direction bends as shown in FIG. 8, and a gap S is generated between the opposing stopper rubber 6b and the vertical frame 1c. At this time, since the vibration of the cab 4 has both amplitudes, a collision phenomenon corresponding to the clearance S always occurs, and riding comfort is significantly deteriorated. Further, since the stopper rubber 6b does not take the amount of vibration of the cab 4 into consideration, the stopper rubber 6b has a large impact when hitting a fixed stopper (not shown) or the like, and corresponds to an inflection point as shown in FIG. A shock is given to the passengers, and deterioration of riding comfort becomes a problem.

SUMMARY OF THE INVENTION An object of the present invention is to provide an anti-sway device for an elevator cab which can reduce the impact on passengers due to the vibration of the cab and improve the riding comfort.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a car room steady rest device which cushions the vibration of a car by providing a cushioning material between the elevator car room and the car frame. In the initial state, the cushioning material is attached by applying a predetermined compressive force, and the cushioning material has a non-linear characteristic (second-order approximation characteristic) in the relationship between the load load and the amount of deflection. A steady rest device for a characteristic elevator cab is provided.

[0007]

With the above construction, when the car is vibrating during elevator travel, the cushioning material expands and contracts in contact with the cab and the car frame, and the amount of deflection is suppressed when the amplitude increases. It is possible to provide an elevator with a comfortable ride with less shock.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, the steady rests 7 attached to the upper four places of the car room 4 are respectively attached to the attachment fittings 7.
a and stopper rubber 7b, and stopper rubber 7b
Is attached to the vertical frame 1c, which also serves as a rubber contact part, by being given an initial compression.

For example, when displacement occurs between the cab 4 and the vertical frame 1c due to the vibration generated when the elevator moves up and down or the eccentric load of the human load, as shown in FIG. 7b is further deflected from that at the time of initial compression attachment, and the stopper rubber 7b on the opposite side, which is opposed, extends due to the restoring force, but no gap is created between it and the vertical frame 1c by properly applying initial compression. Therefore, even if the cab vibrates, the collision phenomenon due to the clearance can be eliminated.

Further, as shown in FIG. 3, the stopper rubber 7b has a rounded end portion 7e with a rounded portion R, and the cross-sectional area is gradually increased toward the root so that the load-deflection diagram becomes non-linear (second-order approximation curve). To be configured. This is attached to the mounting metal fitting 7a with the mounting bolt 7c and the nut 7d, and the dimensional difference α between the rubber tip portion 7e and the head of the bolt 7c is set to a size commensurate with the total amplitude of the cab 4. At this time, the head of the bolt 7c is used as a final stopper. With such a configuration, a load-deflection diagram as shown in FIG. 4 can be obtained, so that the impact can be reduced even if it hits the final stopper.

In order to further improve the riding comfort, as shown in FIG. 5, a stopper rubber 7 having a non-linear load-deflection characteristic is provided.
A cylindrical stopper 8 is provided on the outer side of b, and the stopper rubber 7b
It is also possible to suppress the bulging in the horizontal direction due to the compression in the vertical direction to further bring out the non-linear characteristic. Although the stopper rubber 7b is used in this embodiment, the stopper rubber 7b is not limited to this as long as it has a non-linear characteristic.

As described above, since the shock caused by the clearance between the car room 4 and the vertical frame 1c at the time of car vibration is eliminated and the shock caused by the final stopper is alleviated by the stopper rubber having the non-linear characteristic, the ride comfort is improved. A good elevator can be provided.

[0014]

As described above, according to the present invention, it is possible to provide an anti-sway device for an elevator cab that can reduce the impact on passengers caused by the vibration of the cab and improve the riding comfort.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a mounting configuration of a steady rest of the present invention.

FIG. 2 is an operation explanatory view of the steady rest of the present invention when a car vibrates.

FIG. 3 is a cross-sectional view showing the structure of a stopper rubber according to the present invention.

FIG. 4 is a load-deflection diagram of the stopper rubber of the present invention.

FIG. 5 is a sectional view showing the structure of a stopper rubber according to another embodiment of the present invention.

FIG. 6 is a system configuration diagram of a conventional steady rest.

FIG. 7 is a schematic configuration diagram showing a mounting configuration of a conventional steady rest.

FIG. 8 is an operation explanatory view of the conventional steady rest when the car vibrates.

FIG. 9 is a load-deflection diagram of a conventional stopper rubber.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Car frame, 1c ... Vertical frame, 4 ... Car room, 7 ... Steady stop part, 7b ... Stopper rubber

Claims (1)

[Claims] 1. An anti-sway device for a car room, wherein a shock absorbing material is provided between an elevator car room and a car frame to reduce the vibration of the car. A steady rest device for an elevator cab, wherein the relationship between the load applied to the material and the amount of deflection has a non-linear characteristic.