JP2001063936A - Structure of elevator corresponding to intermediate base isolation building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the structure of an elevator corresponding to relative displacement between the upper layer and the lower layer of an intermediate base isolation building. SOLUTION: A bracket 10 is fixed to the inner wall face 12 of an elevator shaft and a link mechanism displaceable a predetermined movement distance L in the horizontal direction is provided on the bracket 10 for supporting a guide rail 11 vertically passing through an elevator shaft S. A guide arm 20 having a guide roller 21 at the end for guiding the vertical movement of an elevator cage 13 in engagement with the guide rail 11 is fixed to the cage 13. The guide arm 20 is constructed by the link mechanism displaceable at least a half of a predetermined movement distance L in the horizontal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator structure used for an intermediate seismic isolation building.

[0002]

2. Description of the Related Art In an intermediate seismic isolation building, a relative displacement of about 250 mm occurs in a horizontal direction between an upper story and a lower story, and the elevator must be able to cope with the displacement. However, in the conventional elevator, the guide rail for guiding the elevator cage is fixed to the elevator shaft, and therefore, the guide rail is deformed with the relative displacement between the upper and lower floors, and the range becomes an elastic range. Otherwise, plastic deformation may occur and the guide roller may come off.

Therefore, for example, Japanese Patent Application Laid-Open No. 9-278314 describes
In the publication, an elevator is proposed in which a guide rail is mounted via a sliding support device so that the guide rail does not follow the displacement of the building. However, in this technique, the guide rail is a sliding support and is not fixed and is an uncertain structure.
There is a problem that the structure is complicated because the connection is made by an expansion device or a bending device.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an elevator structure which can cope with the above-mentioned problems and which copes with a relative displacement between an upper floor and a lower floor of an intermediate seismic isolation building. .

[0005]

According to the present invention, in an elevator structure used for an intermediate seismic isolation building, a bracket is fixed to an inner wall surface of an elevator shaft, and the bracket can be displaced by a predetermined horizontal moving distance L. A guide arm provided with a link mechanism for supporting a guide rail penetrating the elevator shaft in the vertical direction, and a guide roller provided at a tip thereof for guiding the vertical movement of the elevator cage by engaging with the guide rail. The guide arm is constituted by a link mechanism capable of displacing in the horizontal direction at least half of the predetermined moving distance L.

In the link mechanism of the bracket, an elevator shaft is provided by pivotally connecting the distal ends of a pair of support arms to each other, disposing the other ends at a distance from each other, and forming a triangular shape having the pivot point of the distal ends as the apex. It is preferable that the guide rail is supported slidably in the horizontal direction along the inner wall surface and the guide rail is supported at the tip end so that the guide rail can be displaced by a predetermined moving distance L in the horizontal direction.

The bracket having the link mechanism is used only in the vicinity where the seismic isolation mechanism is provided, and the guide rail is fixed to the wall surface using a bracket having no relative displacement at a position away from the seismic isolation mechanism. Is preferred.

The link mechanism of the guide arm is constituted by a rhombus-shaped panda graph in which a spring biased outward is inserted, and is at least half of the predetermined moving distance L in the horizontal direction.
Is preferably configured to be displaceable.

According to the present invention, the bracket supporting the guide rail penetrating the upper story and the lower story against the relative displacement between the upper story and the lower story of the intermediate seismic isolation building has a link mechanism. Accordingly, the guide rail can be displaced in the horizontal direction by a predetermined moving distance L, and thus the guide rail gently elastically deforms. While the distance between the opposing guide rails is reduced, the link mechanisms of the guide arms on both sides of the elevator car are at least one of them.
In this case, the operation of the elevator car can be prevented from being disabled.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, a bracket generally denoted by reference numeral 10 is fixed to an inner wall surface 12 of the elevator shaft S, has a cross section of an inverted L-shape, extends horizontally along the wall surface, and has a long hole 1a on the upper surface. Mounting member 1 having
And a guide rail 11 extending vertically in the shaft S
And a pair of support arms 3, one end of which is pivotally connected to the rail support member 5 and one pin 4, and the other end of which is locked in the elongated hole 1 a of the mounting member 1.
A and 3B.

The pair of support arms 3A, 3B
Is formed in a triangular shape having the pin portions pivotally connected at one end as vertices a and the locking points b and c at the other end with the elongated holes 1a of the mounting member 1 at the bottom, and urged from the outside. When the rail support member 1 is displaced in the horizontal direction (perpendicular to the wall surface) by the pair of springs 8, 8,
The change is absorbed as a change in the distance (base length of the triangle) between the locking points bc of the elongated hole 1a, and the link mechanism is set so that the displacement amount of the guide rail 11 (rail support member 5) becomes a predetermined value L (for example, 250 mm). Is configured.

As shown in FIG. 3, a guide arm 20 having a guide roller 21 provided at a tip end thereof for guiding the vertical movement of the cage 13 along the guide rail 11 is fixed to a side surface of the elevator cage 13. ing. Returning to FIG. 2, the guide arm 20 is formed in a rhombus-shaped panda graph, and a spring 23 urged outward is inserted and held at a fixed position. The link mechanism is configured to absorb at least a half (for example, 125 mm) of the displacement.

As shown in FIG. 4, the cross section of the elevator shaft S provided with the elevator is larger than the conventional required dimensions A and B by the displacement L.
A + L and B + L are formed.

According to such a configuration, as shown in FIG. 5, the seismic isolation mechanism M is actuated by the earthquake, and the upper floor U and the lower floor D are relatively L (for example, 250 m) in the horizontal direction.
m), the guide rail 11 becomes
Bracket 1 fixed to elevator shaft S side
Absorbs the displacement L by the link mechanism and gently elastically deforms in the vertical direction. In addition, the bracket 1 having the link mechanism is used only near the top and bottom of the seismic isolation mechanism M,
At a distant position, it is preferable to stably fix the guide rail 11 with a bracket (not shown) that does not allow relative displacement.

The two opposing guide rails 1
Although the distance W between 1 and 11 is narrowed by L at the maximum, this amount is absorbed by the displacement of the guide arms 20 on both sides of the cage 13 and the elevator can operate without any trouble. In the drawings, e indicates a holding space (for example, 100 mm). Also,
Since the cage 13 is supported so as to be movable in the horizontal direction, the vibration of the building is absorbed and attenuated in the event of an earthquake, and a damping effect is produced.

[0016]

The present invention has the following effects since it is configured as described above. (1) When the seismic isolation mechanism operates in the middle seismic isolation building, and the relative displacement in the horizontal direction occurs between the upper floor and the lower floor, the guide rail is gently moved in the vertical direction by the bracket link mechanism. Elastically deformed and no large stress is generated. (2) The distance between the opposing guide rails is reduced, but this amount is absorbed by the link mechanisms of the guide arms on both sides of the cage, so that it is possible to prevent the elevator from being unable to operate. (3) Since the cage is supported so as to be movable in the horizontal direction, the vibration of the building is absorbed and attenuated, and a vibration damping effect is produced.

[Brief description of the drawings]

FIG. 1 is a plan view showing a support portion of a guide rail according to an elevator structure of the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a diagram showing an elevator car.

FIG. 4 is a sectional view showing a shape of an elevator shaft.

FIG. 5 is a diagram illustrating deformation of a guide rail by an intermediate seismic isolation mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Mounting member 3A, 3B ... Support arm 4 ... Pin 5 ... Rail support member 10 ... Bracket 11 ... Guide rail 12 ... Wall surface 13 ... Elevator cage 20. ..Guide arms 21 ... Guide rollers 23 ... Springs

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshio Osaki 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Inside Kashima Construction Co., Ltd. (72) Inventor Akio Tomita Kazuto Moto-Asaka, Minato-ku, Tokyo 2-7-7 Kashima Construction Co., Ltd. (72) Inventor Genyuki Araki 1-2-7 Moto-Akasaka, Minato-ku, Tokyo F-term within Kashima Construction Co., Ltd. 3F305 BA07 BD08 BD09 BD31 CA06

Claims (1)

[Claims] In an elevator structure used for an intermediate seismic isolation building, a bracket is fixed to an inner wall surface of an elevator shaft, and the bracket has a predetermined horizontal moving distance (L).
A guide mechanism that supports the guide rail penetrating vertically through the elevator shaft is provided by providing a link mechanism capable of displacing the elevator car, and a guide roller that engages with the guide rail and guides the vertical movement of the elevator cage is provided at the tip. A guide arm is fixed to an elevator cage, and the guide arm is constituted by a link mechanism capable of displacing at least half of the predetermined moving distance (L) in a horizontal direction, wherein the elevator is adapted to an intermediate seismic isolation building. Structure.