JPH09195574A - Antiseismic device for general house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antiseismic device being easily mounted by the cooperation of a post-shaped foundation and a peripheral frame, to which the underframe of a building is fitted. SOLUTION: In an antiseismic device (a) for a general house, a support seat 3, over which small balls 2 are spread, is disposed into a box-shaped pedestal body 1, which is formed in a rectangle in a plan view and in which a top face is opened, and a seat disc 5, in which a support shaft 4 is disposed in upright on a central top face, is placed on the top face of the small ball group of the support seat 3. The top face of the seat disc 5 is covered with a cover 7, which guides the support shaft 4 and to which a cross-shaped guide passage 6 is penetrated, and the antiseismic device consists of a pedestal 9 clamping the cover 7 together with the pedestal body 1 to anchor bolts 8 on a foundation, laminated leaf springs 12 fixed onto a fixed seat 10 engaged with the support shaft 4 through a fixing means such as U bolts 1, and a mounting plate 15, which is abutted against surfaces at both ends of the laminated leaf springs 12, in which both ends are guided movably in the expansion- contraction direction by deflection and which is guided slidably to guide shafts 14 disposed in upright to a support disc 13 clamped to the fixing means together with the top faces of the laminated leaf springs 12.

Description

Detailed Description of the Invention

[0001]

The present invention belongs to the field of earthquake-resistant foundation,
The present invention relates to a seismic device for a general house on the foundation.

[0002]

2. Description of the Related Art Although there are various types of seismic resistant devices that have been provided in the past, the seismic resistant device cannot be easily applied to general houses due to the large size of the device.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above,
An object of the present invention is to provide a simple seismic device for a general house by cooperation of a pillar-shaped foundation and a peripheral frame for fitting a frame of a building.

[0004]

According to the seismic resistant device for general houses of the present invention, a support seat having small balls is arranged inside a box-shaped pedestal body having a plane rectangular shape and an open top surface. On the upper surface of the small sphere group, a seat board having a support shaft standing upright on the central upper surface is placed, and a cover having a cross-shaped guide path for guiding the support shaft is provided on the upper surface of the seat board. A pedestal formed by fastening the cover together with the pedestal body to the anchor bolts on the foundation,
A leaf spring fixed to a fixed seat fixed to the support shaft via a fixed main step, and abutted against the surfaces of both ends of the leaf spring to guide the both ends movably in a direction of expansion and contraction by bending. And a mounting plate slidably guided on a guide shaft provided on a support plate which is fastened to the fixing means together with the upper surface of the leaf spring 12.

[0005]

[Operation] The pedestal body is fixed to the foundation by anchor bolts on the foundation, the support seat movably mounts the seat board through small balls, and the seat board is fastened together with the base body to the anchor bolts. The support shaft, which is movably accommodated in the pedestal body and is erected on the seat base, is fixed together with the fixed seat through the fixed main stage in the range of being prevented from coming off by the cross guide path of the cover. The mounting plate that supports the leaf spring and contacts the surface (load surface) of the leaf spring is fixed to the surrounding frame of the building, and the vibration from the foundation is buffered by the leaf spring and is attenuated as energy. Transmitted.

[0006]

EXAMPLES The present invention will be described by way of examples. As shown in FIG. 1, a general household seismic resistant device a (hereinafter referred to simply as seismic resistant device a) is a box-shaped pedestal body having a flat rectangular shape and an open upper surface. The support seat 3 with the small balls 2 spread inside the 1 is arranged,
On the upper surface of the small ball group of the support seat 3, a seat plate 5 having a support shaft 4 erected on the center upper surface is placed, and the support shaft 4 is guided on the upper surface of the seat plate 5 as shown in FIG. A cover 7 having a cruciform guideway 6 extending therethrough is covered, and the cover 7 is fastened together with an anchor bolt 8 on a foundation together with the pedestal body 1 to the support shaft 4. A leaf spring 12 mounted on the upper surface of the fixed seat 10 and positioned and fixed to the fixed seat 10 by a U-bolt 11 as a main fixing step;
A support plate 13 which is brought into contact with the surfaces (load-loading surfaces) of both ends of the support plate 13 to guide the both ends movably in the direction of expansion and contraction due to bending, and which is fastened to the U bolt 11 together with the upper surface of the fixed portion of the laminated leaf spring 12. And a mounting plate 15 slidably guided on a guide shaft 14 which is integrally provided on the upper surface of the mounting plate 15. A rubber plate cushion 16 is provided at the center of a surface of the mounting plate 15 facing the leaf spring 12. Wear it.

As shown in FIG. 3, the seismic device constructed as described above has a pillar-shaped foundation standing upright at each corner of a peripheral frame 18 made of H-shaped steel fitted to a frame 17 of a building. The pedestal 9 and the cover 7 are fastened together and fixed to the upper surface of the base 19 via the anchor bolts 8 erected, and the mounting plate 15 is fixed with bolts and nuts to the beam 20 which has been passed over each peripheral frame 18 at right angles. The peripheral surface 21 of each foundation 19 erected at a required interval outside the peripheral frame 18 at the corner outer surface is opposed to the peripheral surface of the peripheral frame 18 via the anchor bolt 8 provided horizontally. Similarly, the pedestal 9 is fixed together with the cover 7 and fixed, and each mounting plate 15 is fixed to the peripheral frame 18 with a bolt and a nut.

When assembling the seismic device a, the leaf spring 12 is fixed in a predetermined compressed state (mounting load) by a predetermined jig (not shown), and the support shaft 4 is connected to the guide path 6.
Assembling in a posture in which the foundation 19 is held in the center, and after assembling, each jig 19 is removed so that each foundation 19 can swing up and down, left and right, and front and back with respect to the building. Is laid in consideration of the above-mentioned conditions, and the seismic resistant device a, which is installed inside the corner and supports the building from below, is designed so that vertical vibrations are attenuated by the leaf springs 12 and The shaft 14 is slidably guided by the attachment plate 15 and the beam 20 to prevent transmission to the building, and vibrations in the front-rear and left-right directions are avoided by the cross-shaped guide path 6. Next, in the seismic device a provided on the side surface in the front-rear direction, the vibration in the front-rear direction is attenuated by the lap spring 12 and the guide shaft 14 is attached to the mounting plate 15.
And vibrations in the peripheral frame 18 are slidably avoided, and vibrations in the left and right and vertical directions are avoided by the cross-shaped guide paths 6, respectively. Is attenuated by the overlapping leaf spring 12 and is avoided by slidably guiding the guide shaft 14 to the attachment plate 15 and the peripheral frame 18. Are respectively avoided. Therefore, the earthquake-proof device a of the present invention is easy to assemble to the support members such as the foundation 19 and the peripheral frame 18 of the building, and also supports the building from the four circumferences and the lower side with a predetermined mounting load, and therefore wind pressure measures are also taken. It is perfect, and the vibration is damped by the leaf springs 12 on the surface facing the vibration direction.
In a plane different from the vibration direction, the supporting system of the leaf spring 12 is free with respect to the foundation 19 via the cross-shaped guide path 6. Note that the cushion 16 is used to reduce impact when excessive vibration occurs.

[0009]

As described above, according to the present invention, the pedestal 9 is attached to the anchor bolt in each of the foundations 19 which are constructed at positions facing the inner surface of each corner of the support member of the general house and the outer surface at right angles and the required peripheral surface. 8 and the attachment plate 15 on the pressure receiving side is also bolted to the support member to be assembled, so that the seismic-resistant foundation work and the assembly work to the support member are extremely simple. , Without selecting any special technology, just select the one that matches the withstand pressure load,
This has the effect of making ordinary houses earthquake-resistant.

[Brief description of the drawings]

FIG. 1 is a front view of an earthquake-proof device a according to the present invention.

FIG. 2 is a view taken in the direction of arrows AA in FIG. 1;

FIG. 3 shows a seismic device a at a corner of a support member of a general house.
Explanatory diagram showing the assembled state of.

[Explanation of symbols]

 1 pedestal body 2 small ball 3 support seat 4 support shaft 5 seat plate 6 guideway 7 cover 8 anchor bolt 9 pedestal 10 fixed seat 11 U bolt 12 stack leaf spring 13 support plate 14 guide shaft 15 attachment plate 16 cushion 17 underframe 18 Peripheral frame 19 Foundation 20 Beam 21 Circumference a Earthquake-proof device for general houses

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location // E02D 27/34 8312-3J F16F 15/06 A

Claims (1)

[Claims] A seat base in which a support seat with small balls is arranged inside a box-shaped pedestal body having a flat rectangular shape with an open upper surface, and a support shaft is erected on the central upper surface of the upper surface of the small ball group of the support seat. Is mounted on the upper surface of the base, and a cover having a cross-shaped guide path that guides the support shaft is provided on the upper surface of the base, and the cover is fastened together with an anchor bolt on the foundation together with the base body. A pedestal, a leaf spring that is fixed to a fixed seat that is engaged with the support shaft via a main fixing stage, and abuts on the surfaces of both ends of the leaf spring, and both ends are movable in the expansion / contraction direction due to bending. A seismic isolator for a general house, which comprises an attachment plate which is guided and is slidably guided by a guide shaft standing on a support plate which is fastened to the fixing means together with the upper surface of a leaf spring.