JP2001097652A - Structure of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of an elevator allowing to prevent fracture of a guide rail even when multiple elevators continue in a building where a horizontal displacement is generated. SOLUTION: In this structure of the elevator in the building provided with a base isolation device between an upper floor and a lower floor, multiple pairs of the guide rails are arranged and installed in parallel with the lateral direction of an elevator shaft. Each of the outside guide rails is mounted to tiltable right or left strut, vertically installed to right and left ends of the elevator shaft, at a middle part of a part elastically deformed. An upper end and a lower end of the right and left struts are attached to an upper floor and a lower floor than a floor where the base isolation device is installed, respectively. An intermediate beam horizontally placed in a back and forth direction of the elevator shaft is provided between two inside guide rails close to each other. An inclination of the inside guide rails is restricted by the intermediate beam.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator structure.

[0002]

2. Description of the Related Art Buildings having a seismic isolation device on an intermediate floor have been developed. In such a building, the elevator shaft also undergoes horizontal displacement during an earthquake. Therefore, if the conventional structure of the elevator is employed as it is, the guide rail of the elevator may be deformed and damaged. Particularly, in an elevator shaft for raising and lowering a plurality of elevators, a large number of guide rails are arranged, and there are many structural problems.

[0003]

For this purpose, it is possible to adopt a structure in which an elevator on the lower floor and an elevator on the upper floor are separately provided, and the elevators are switched at a level where displacement occurs.
However, in such a structure, a transfer is always required when moving between the lower floor and the upper floor, which is extremely inefficient. In addition, in order to cope with deformation of the guide rails, there is also a structure in which steel frames are built into the elevator shaft on three levels and the guide rails are fixed to this frame, but the size of the car is larger than that of existing elevators. There is the disadvantage that it is significantly smaller.

[0004]

SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems. In a building where horizontal displacement occurs, the guide rail of the elevator can be safely passed without damaging the guide rails of the elevator. The purpose of the present invention is to provide an elevator structure. Another object of the present invention is to provide an elevator structure in which a guide rail is not damaged even when a plurality of elevators are continuous.

[0005]

In order to achieve the above object, an elevator structure according to the present invention is an elevator structure in a building provided with a seismic isolation device between an upper floor and a lower floor. And multiple sets of guide rails to guide the elevator up and down in the left and right direction of the elevator shaft,
Installed side by side, each of the left and right guide rails
Attach the middle of the elastically deformed parts to the tiltable left and right supports vertically installed on the left and right ends of the elevator shaft,
The upper ends of the left and right supports are installed on the upper floor from the level where the seismic isolation device is installed, and the lower ends of the left and right supports are installed on the lower floor below it. An intermediate beam horizontally disposed in the longitudinal direction of the elevator shaft is installed between the two guide rails, and the end of the intermediate beam is vertically arranged in the longitudinal direction of the elevator shaft. The upper end of the front and rear struts is mounted on a floor higher than the floor where the seismic isolation device is installed, and the lower end of the front and rear struts is mounted on the lower floor below the elevator.

Further, the present invention relates to an elevator structure in a building having a seismic isolation device provided between an upper floor and a lower floor, wherein a plurality of guide rails for guiding the elevator up and down are provided in the left and right direction of the elevator shaft. The guide rails at the left and right ends are attached to tiltable left and right supports vertically installed at the left and right ends of the elevator shaft. The lower ends of the left and right columns are attached to lower floors than the floor where the seismic device is installed, while the guide rails other than the right and left end guide rails are attached to the two lower guide rails. At least two intermediate beams that are horizontally arranged in the front and rear direction of the elevator shaft are installed vertically, and the ends of the upper intermediate beams are higher than the level where the seismic isolation device is installed. At the upper floor, the end of the lower intermediate beam is attached to the lower floor, and at the upper and lower intermediate beams, an intermediate support is attached vertically, and the two support rails are elastically deformed to the intermediate support. This is the structure of the elevator, which is constructed by attaching the middle part.

[0007]

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

<A> Outer guide rail 1 The present invention is an elevator structure in a building provided with a seismic isolation device between an upper floor and a lower floor. Outer guide rails 1 for guiding the elevator up and down are installed at both left and right ends inside the elevator shaft. The outer guide rail 1 is fixed to a floor above and below the floor where the seismic isolation device is provided, with a clip 11 or the like. Therefore, the outer guide rail 1 can be elastically deformed between the fixed portions.

<B> Left and right supports 2L, 2R that can be tilted. The middle point of the portion where the left and right outer guide rails 1 are elastically deformed is defined by left and right columns 2L, 2
Attach to R. The upper ends of the left and right supports 2L, 2R are suspended from the floor above the floor where the seismic isolation device is installed via a universal joint 21 or the like so as to be able to tilt freely in all directions. The lower ends of the left and right columns 2L and 2R are attached to the lower floor without being restrained in the vertical direction. Therefore, even if the columns are inclined during the earthquake and the length between the vertical columns changes during the earthquake, the amount of change is absorbed. Can be.

<C> Installation of the intermediate beam 4. When a plurality of sets of guide rails are installed side by side in the left-right direction of the elevator shaft, the inner guide rails 3 are provided inside the shaft in addition to the outer guide rails 1 at the left and right ends.
Exists. In this inner guide rail 3, an intermediate beam 4 is installed horizontally between two approaching guide rails. The inner guide rails 3 located on both sides of the intermediate beam 4 are attached with clips 41 or the like. This intermediate beam 4
Place the elevator shaft horizontally in the front-rear direction. The front end of the intermediate beam 4 is attached to a front post 5F vertically disposed in front of the elevator shaft, and the rear end of the intermediate beam 4 is attached to a rear post 5B vertically disposed behind the elevator shaft.

<D> Front and rear supports 5F, 5B. The upper ends of the front and rear struts 5F and 5B are hung on a floor higher than the floor where the seismic isolation device is installed via a universal joint or the like so as to be able to tilt back and forth and left and right. Front and rear support 5F,
The lower end of 5B is attached to the lower floor without being restrained in the vertical direction. The attachment of the intermediate beam 4 and the front and rear columns 5F and 5B is made by a pin structure. As a result, even if the front and rear support columns 5F and 5B are inclined, the intermediate beam 4 maintains a horizontal state.

<E> Another embodiment of the mounting structure of the column. In the above description, the left and right supports 2L, 2R, the front and rear supports 5F,
In both 5B, the structure which hung the upper end of a support | pillar with a universal joint and the lower end was not restrained in the up-down direction was demonstrated. However, conversely, a structure in which the lower end of each support is placed on a spherical bearing or the like and the upper end is not restricted in the vertical direction can be adopted. Then, at the time of the earthquake, the lower end of the strut can be inclined in the entire circumferential direction, and the resulting change in the vertical dimension of the strut can be absorbed by the upper end not being restrained in the horizontal direction.

<F> Behavior during an earthquake. (Outer guide rail 1) When an earthquake occurs, the outer guide rail 1 is deformed into an S shape between upper and lower fixed points. On the other hand, the left and right columns are also inclined in a straight line using the upper universal joint 21 as a fulcrum for suspension. If both are connected at an intermediate point, they are displaced by 各 々 each. Therefore, an excessive force does not act on the guide rail 1 and breakage can be avoided. Further, even when the elevator car is passing through the elastic displacement section, the guide rail 1 is not damaged because the left and right columns 2L and 2R resist the horizontal force of the earthquake.

<G> Behavior during an earthquake. (Inner Guide Rail) The inner guide rail 3 also undergoes an S-shaped elastic deformation between upper and lower fixed points. On the other hand, the front and rear struts 5F and 5B are also inclined in a straight line with the upper universal joint 51 or the like as a fulcrum for suspension. If the intermediate beam 4 is connected at an intermediate point between the front and rear columns 5F and 5B, the intermediate beam 4 is １ ／ of the horizontal displacement.
Only displace. Therefore, no excessive force acts on the inner guide rails 3 attached to both sides of the intermediate beam 4,
Damage can be avoided. Further, even when the elevator car is passing through the elastic displacement section, the guide rail 3 is not damaged because the intermediate beam 4 and the front and rear struts 5F and 5B resist the horizontal force of the earthquake.

<H> Structure of another embodiment. (FIG. 7 et seq.) In the inner guide rail 3, two intermediate beams 4 horizontally arranged in the front-rear direction of the elevator shaft are installed between the two guide rails 3 approaching each other. That is, the upper intermediate beam 61 and the lower intermediate beam 62. Then, the end of the upper intermediate beam 61 is attached to a front-rear surface of a floor higher than the floor where the seismic isolation device is installed. On the other hand, the end of the lower intermediate beam 62 is attached to the floor on which the seismic isolation device is installed, or the front-rear surface of the lower floor. An intermediate support 6 is provided between two adjacent inner guide rails 3, and the intermediate support 6 is connected to the inner guide rails 3 on both sides by support arms 63. The intermediate support 6 is vertically mounted between the upper intermediate beam 61 and the lower intermediate beam 62.
Is suspended from the upper intermediate beam 61 in a state in which it can be deformed forward, backward, left and right via a universal joint or the like. On the other hand, the lower end of the intermediate support 6 is attached to the lower intermediate beam 62 in a state where only the lateral movement is restricted.

<I> Behavior of another embodiment. (FIG. 7 et seq.) In the event of an earthquake, the displacement of the intermediate point of the intermediate support 6 is one half of the horizontal displacement. Therefore, at this point, the inner guide rail 3 connected to the intermediate support 6 changes the deformation by の of the horizontal displacement.
Is not restrained and no excessive force is applied. Therefore, the inner guide rail 3
Is not damaged.

<Nu> Structure of the counterweight. The counterweight also moves up and down using a special guide rail. Therefore, the guide rails of the counterweight can be prevented from being broken by adopting the same structure as the guide rails at the left and right ends in the above-described embodiment.

[0018]

Since the structure of the elevator according to the present invention is as described above, the following effects can be achieved. <A> Since the deformation of the guide rail can be suppressed smaller than the horizontal displacement of the building, it is possible to prevent the guide rail from being damaged. <B> It is difficult to handle the inner guide rail especially when a plurality of elevators are installed in a row. However, in the structure of the present invention, an intermediate beam 4 is provided between the adjacent inner guide rails 3 and a structure is employed in which deformation of the guide rails on both sides is suppressed via the intermediate beam 4. The safe operation can be maintained by preventing damage to the vehicle. <C> The inner space of the elevator shaft can be used more effectively than a structure in which a steel frame is assembled on three levels inside the elevator shaft and a guide rail is fixed to the frame. <D> In the above embodiment and the drawings, the case where two elevators are provided side by side has been described, but the same structure can be adopted in three or more elevators.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a basic concept of an elevator structure according to the present invention.

FIG. 2 is a cross-sectional view in the left-right direction.

FIG. 3 is a cross-sectional view in a left-right direction showing a behavior during an earthquake.

FIG. 4 is a cross-sectional view in the front-rear direction.

FIG. 5 is a cross-sectional view in the front-rear direction showing behavior during an earthquake.

FIG. 6 is a plan view of an elevator shaft.

FIG. 7 is an explanatory view showing the basic concept of another embodiment of the present invention.

FIG. 8 is a cross-sectional view in the left-right direction.

FIG. 9 is a cross-sectional view in the left-right direction showing the behavior during the earthquake.

FIG. 10 is a cross-sectional view in the front-rear direction.

FIG. 11 is a sectional view in the front-rear direction showing the behavior during the earthquake.

FIG. 12 is a plan view of the elevator shaft.

Continued on the front page (72) Inventor Masayuki Kumagai 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Corporation F-term (reference) 3F305 BA01 BD02 BD08

Claims (2)

[Claims] 1. An elevator structure in a building having a seismic isolation device provided between an upper floor and a lower floor, wherein a plurality of sets of guide rails for guiding the elevation of the elevator are provided in parallel in the left-right direction of the elevator shaft. Each of the outer guide rails at the left and right ends is attached to an inclineable left and right column vertically installed at the left and right ends of the elevator shaft, and the upper ends of the left and right ends are seismic isolation devices. The lower ends of the left and right supports are attached to the lower floors, respectively, while the inner guide rails other than the left and right end guide rails are attached to the two inner guide rails that are close to each other. An intermediate beam, which is horizontally arranged in the front-rear direction of the elevator shaft, is installed therebetween. The end of the intermediate beam is vertically arranged in the front-rear direction of the elevator shaft. An elevator structure in which the upper and lower supports are attached to the upper and lower floors of the floor where the seismic isolation device is installed, and the lower ends of the front and rear supports are attached to the lower floor. 2. An elevator structure in a building having a seismic isolation device provided between an upper floor and a lower floor, wherein a plurality of sets of guide rails for guiding the elevation of the elevator are provided in parallel in the left-right direction of the elevator shaft. Each of the outer guide rails at the left and right ends is attached to an inclineable left and right column vertically installed at the left and right ends of the elevator shaft, and the upper ends of the left and right ends are seismic isolation devices. The lower ends of the left and right supports are attached to the lower floors, respectively, while the inner guide rails other than the left and right end guide rails are attached to the two inner guide rails that are close to each other. At least two intermediate beams that are arranged horizontally in the front-rear direction of the elevator shaft are installed vertically, and the end of the upper intermediate beam is higher than the level where the seismic isolation device is installed. On the upper floor, the end of the lower intermediate beam is attached to the lower floor, and the upper and lower intermediate beams are vertically attached with an intermediate support, and the intermediate support is equipped with the two guide rails described above. The structure of the elevator.