JPH04350273A - Earthquakeproof device for elevator pit - Google Patents

Abstract

PURPOSE:To prevent the vibration of an elevator device in an earthquake by installing an elevator pit in separation from an upper part structure and laying an extension/contraction member in strip shape between the upper part structure and the elevator pit. CONSTITUTION:An elevator pit 1 equipped with a buffer device 11, etc., in an elevator cage 10 installed in a building supported through an earthquakeproof device is installed in separation from an upper part structure A on the periphery of the elevator. Further, an extension/contractible member 8 is installed in strip shape through installation metal fittings 7 between the upper part structure A and the elevator pit 1. In an earthquake, the vibration of a lower part structure B is prevented from being transmitted to the upper part structure A. Accordingly, the vibration due to the earthquake can be prevented from being transmitted to the elevator equipment.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic isolation device for elevator pits in buildings.

0002

2. Description of the Related Art A conventional elevator pit consists of a side wall and a pit slab that are continuously disposed on the lowest floor slab of a building.

0003

Therefore, in the conventional structure described above, horizontal and vertical vibrations of the building during an earthquake are transmitted to the upper structure and the elevator system, resulting in malfunction of the elevator. The present invention was proposed in view of the problems of the prior art, and its purpose is to provide an elevator piping system that prevents the horizontal and vertical vibrations of a building during an earthquake from being transmitted to the upper structure and elevator equipment. The point is to provide a seismic isolation device.

0004

[Means for Solving the Problems] In order to achieve the above-mentioned object, the elevator pit base isolation device according to the present invention is applicable to elevator pits in buildings where the base isolation device is installed between the lower structure and the upper structure. The periphery of the elevator and the upper structure around the elevator are separated, and a telescopic member is mounted between them in the form of a belt via a mounting fitting.

[0005]

[Operation] Since the present invention is constructed as described above,
Horizontal and vertical vibrations of the building during an earthquake are absorbed by the expansion and contraction of a telescopic member installed in a strip shape via a mounting member in a separated portion around the elevator pit and the upper structure around the elevator. Vibrations are prevented from being transmitted to the elevator equipment.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. A is the upper structure of the building, B is the lower structure, and a seismic isolation device (not shown) is installed between the two. Reference numeral 1 denotes an elevator pit, which is composed of a pit side wall 3 and a pit slab 4, which are connected to a pine slab 2 in a lower structure B.

Reference numeral 5 denotes the lowest floor in the superstructure A, and 6 is a beam disposed at the bottom of the floor 5 and facing the upper part of the elevator pit 1, and an elevator constructed by the beam 6 and the floor 5. The surrounding part of the upper structure and the pit side wall 3
and the pine slab 2 connected to the same side wall 3, and the surrounding part of the elevator pit 1 is separated, and an elastic member 8 is installed in a band shape between the beam 6 and the pine slab 2 via a mounting bracket 7. The expandable member 8 is then covered with a fireproof material 9.

In the figure, 10 is an elevator car, 11 is an elevator car buffer, 12 is a counterweight buffer, and 13 is a buffer receiver. Since the illustrated embodiment is configured as described above, the horizontal and vertical vibrations of the building during an earthquake are absorbed by the expansion and contraction of the expandable member 8, thereby preventing the transmission of the vibrations to the elevator equipment. Elevator malfunctions are prevented from occurring.

Furthermore, since the extensible member 8 is covered with a fireproof material 9, there is no risk that its performance will be degraded by heat of fire or the like.

0010

Effects of the Invention As described above, the elevator pit seismic isolation device according to the present invention eliminates the need for the elevator pit to be provided continuously from the upper structure of the building, and allows the elevator pit to be connected to the upper structure around the elevator. By separating the area around the building and installing elastic members in a band shape through mounting hardware between them, horizontal and vertical vibrations of the building during an earthquake are prevented from being transmitted to the superstructure and elevator equipment, and the vibration caused by the elevator is prevented. This can prevent the occurrence of functional disorders.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of an elevator pit seismic isolation device according to the present invention.

[Explanation of symbols]

A. Superstructure B Substructure 1 Elevator pit 2 Pine slab 3 Pit side wall 4 Pitto slab 5. Bottom floor 6 Beam 7 Mounting bracket 8　　　Extensible member

Claims (1)

[Claims] Claim 1: In a building in which a seismic isolation device is installed between the lower structure and the upper structure, the area around the elevator pit and the upper structure around the elevator is separated, and a telescopic member is installed between them via a mounting bracket. A seismic isolation device for an elevator pit characterized by being installed in a strip shape.