JPH1160120A - Elevator door opening device of base isolation building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator door opening device of a base isolation building, able to smoothly open a door in the normal time without backlash, having no contact and no collision in an earthquake, and dispensing with any subtle adjustment. SOLUTION: In an elevator car 2, rotational claws 4 are projected toward floor doors 5. The rotational claws 4 are attached to the car 2 of an elevator so as to be freely tilted in the vertical direction and so as not to be tilted in the horizontal direction. Rollers 6 are rotatably attached on the car 2 sides of the floor doors 5. Opening of the floor doors 5 can be performed by pressing the rollers 6 of the floor doors 5 by the side surfaces of the rotational claws 4 on the car 2 sides.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator door opening device for a base-isolated building.

[0002]

2. Description of the Related Art In a base-isolated building provided with a base-isolation device at an intermediate level, a delicate adjustment is required in order to maintain the opening of an elevator even if interlayer displacement occurs. That is, as shown in FIGS. 6 and 7, normally, the door opening plate b on the side of the car a and the roller d of the floor door c are brought as close as possible to reduce backlash and to smoothly open the door. However, if the distance between the door b of the car a and the roller d of the floor door c is set too close, if a hierarchical displacement occurs during an earthquake, the two collide and break. Would. Therefore, it is necessary to design and adjust the delicate spacing so that the door can be opened smoothly in normal times, and there is no contact or collision during an earthquake.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. The door can be opened smoothly without any backlash in normal times, and no contact or collision occurs during an earthquake. An object of the present invention is to provide an elevator door opening device for a base-isolated building that does not require adjustment.

[0004]

In order to achieve the above-mentioned object, an elevator door opening device for a seismic isolation building according to the present invention is provided in an elevator of a building provided with a seismic isolation device on an intermediate floor. , Projecting a rotating pawl toward the floor door direction, this rotating pawl can be tilted up and down, attached to the elevator car in a state that it can not be tilted horizontally, and on the car side of the floor door It is characterized by an elevator door opening device of a seismic isolation building, which is configured to open the floor door by pressing the roller of the floor door with the side of the car-side rotating pawl with the roller freely rotatable. It was done.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an elevator door opening apparatus for a base-isolated building according to the present invention will be described below with reference to the drawings.

<A> Seismic isolation building. In a building provided with the seismic isolation device 1 in the middle level, the elevator car 2 moves up and down along the guide rail 3. Various members such as rubber short pillars can be used as the seismic isolation device 1.

<B> Car side structure. The elevator car 2 has a rotating pawl 4 toward the floor door.
Project. The rotary pawl 4 can be tilted in the vertical direction through which the elevator passes. However, it is attached to the elevator car 2 in such a manner that it cannot be tilted in the horizontal direction perpendicular to it. For this purpose, two bearing plates 41 are protruded in parallel to the floor door direction at a part of the link and other opening / closing mechanisms on the elevator car 2 side. The bearing plate 41 is provided with a long groove 42 facing the floor door.
Then, the rotary pawl 4 is installed between the two plates 41, and the rotary shaft 43 of the rotary pawl 4 is stored in the long groove 42 of the bearing plate 41. Further, a spring 44 is provided on the rotating shaft 43.
Is attached, and a pulling force to the car 2 side is given. The car 2 side end of the rotary pawl 4 is formed in an eccentric cam shape. Then, the position with the shortest radius is drawn by the pulling by the spring. If the position where the radius is the shortest is appropriately designed, the rotary pawl 4 can always be kept horizontal.

<C> Floor doors. The roller 6 is provided on the back of the floor door 5, that is, on the side of the car 2 side.
Is attached rotatably. The mounting position of the roller 6 is closer to the opening of the door than the position where the rotary pawl 4 normally passes. When the floor door 5 is a double door type, two sets of the rotating pawls 4 are also arranged, and two sets of rollers 6 are also installed according to the positions of the pawls 4.

<D> Door opening operation. When the car 2 stops at the floor door 5 during normal times, the rotary pawl 4 stops at a position close to the roller 6. Then, the door opening operation of the car 2 side is performed, and the rotary pawl 4 can be tilted in a direction in which the elevator passes, that is, in a vertical direction.
However, it is attached to the elevator car 2 in such a manner that it cannot be tilted in the horizontal direction perpendicular to it. Therefore, when the rotary pawl 4 moves horizontally, its side faces
, And the floor door 5 can be opened.

<E> When interlayer displacement occurs. In the case where the rollers 6 are located in the locus of the pawls 4 on the side of the car 2 due to the interlayer displacement during the earthquake, in the case of the conventional apparatus, both collide and one of them is damaged. However, according to the configuration of the present invention, the rotary pawl 4 is attached so as to be tiltable in the vertical direction in which the elevator passes. Therefore, the rotary pawl 4 hitting the roller 6 easily inclines and gets over the roller 6. Therefore, neither the rotating pawl 4 nor the roller 6 is damaged. The rotating pawl 4 having passed over the roller 6 is pulled by a spring,
The rotation pawl 4 again stands horizontally because it is stable on the shortest radius side.

[0011]

As described above, the elevator door opening apparatus for a base-isolated building according to the present invention has the following advantages. <A> In normal times, the rotary pawl 4 can be stopped close to the roller 6 of the floor door 5, so that the door can be smoothly opened without rattling. <B> When the interlayer displacement occurs and the position of the roller 6 of the floor door 5 is located within the locus of the rotating pawl 4, the rotating pawl 4
Is mounted so that it can be tilted in the vertical direction through which the elevator passes, so that the rotary pawl 4 hitting the roller 6 easily tilts and gets over the roller 6. Therefore, neither the rotating pawl 4 nor the roller 6 is damaged. <C> Since there is no danger of damage in the event of an earthquake, there is no need to design and adjust delicate positions as in the past, and it can be easily set even by a specially skilled technician. It is a target.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an embodiment of an elevator door opening device for a base-isolated building according to the present invention.

FIG. 2 is an explanatory view from the front of the door opening device.

FIG. 3 is a perspective view thereof.

FIG. 4 is an exploded view of the rotary pawl 4;

FIG. 5 is an explanatory diagram of a base-isolated building.

FIG. 6 is an explanatory view of a conventional elevator door opening device.

FIG. 7 is an explanatory view from the front.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akio Yoshikawa 1-25-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei Corporation

Claims (2)

[Claims] 1. An elevator for a building provided with a seismic isolation device on an intermediate floor, wherein an elevator car projects a rotating pawl toward a floor door, and the rotating pawl can be tilted up and down in a vertical direction. Attach it to the elevator car so that it cannot tilt in the direction, and install the roller on the car side of the floor door so that it can rotate freely. Elevator door opening device for base-isolated buildings configured to open doors 2. An elevator car, comprising two bearing plates projecting in parallel toward a floor door, and each bearing plate is provided with a long groove directed toward a floor door. A rotary pawl is installed between them, the rotary shaft of the rotary pawl is housed in the long groove of the bearing plate, and a pulling force is applied to the rotary shaft toward the car, and the car side end of the rotary pawl is The elevator door opening device for a base-isolated building according to claim 1, wherein the elevator opening device is formed in an eccentric cam shape.