JPH08226106A - Constant level support device without requiring removal of rubber support body - Google Patents

Abstract

PURPOSE: To easily adjust the level of a bridge girder simply by slightly lifting a bridge girder without demounting a rubber support body. CONSTITUTION: A coupling projection 3 fastened to the lower metal plate 2 of a rubber support body 1 is coupled and fixed to the lower coupling hole 6 of a lower holder 5 fixed to the upper side of a lower structure 4. Furthermore, an upper support shaft 9 prepared separately is coupled to the though-hole 8 of the upper metal plate 7 of the body 1, with a bridge girder 10 lifted. In addition, the upper section of the shaft 9 is coupled to an upper holder 11 fixed to the girder 10. Also, level adjustment boards 13 and 14 with upper coupling holes 12 for the shaft 9 are coupled thereto, and the holder 11 is placed on the plate 7 via the boards 13 and 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber bearing consisting of upper and lower metal plates and a rubber plate sandwiched between the upper and lower metal plates, which is left as it is without replacement. The present invention relates to a device for supporting a rubber support, which can be easily adjusted in level, at a constant level without removing it.

[0002]

2. Description of the Related Art Conventionally, a known rubber bearing exchange device is disclosed in Japanese Utility Model Publication No. 64-416.

[0003]

However, in the case of the above-mentioned conventional apparatus, it is necessary to store the removed rubber support and the rubber elastic support comprising the lower metal plate and the upper metal plate. There is also a problem of how long the rubber elastic support should be stored.

[0004]

In order to advantageously solve the above-mentioned problems, in a device for supporting the rubber bearing of the present invention at a constant level without removing it, the rubber bearing is fixed to the lower metal plate 2 of the rubber bearing 1. The locking projection 3 that has been
It is fitted and fixed in the lower fitting hole 6 of the lower holding fixture 5 fixed to the upper part of the lower support fitting 5, and is inserted into the through hole 8 provided in the upper metal plate 7 of the rubber support 1 and the upper support made separately therefrom. Axis 9
With the bridge girder 10 being lifted, the upper holding metal fitting 11 fitted to the through hole 8 of the upper metal plate 7 and fixed to the bridge girder 10
The upper part of the upper support shaft 9 is fitted to the upper support shaft 9, and the level adjusting plates 13 and 14 having the upper fitting holes 12 of the upper support shaft 9 are fitted to the upper support shaft 9 to The upper holding metal fitting 11 is placed on the upper metal plate 7 via Further, the locking projection 3 is integrally fixed to the lower metal plate 2 of the rubber bearing 1, and the locking projection 3 is fitted into the lower fitting hole 6 of the lower holding metal fitting 5 fixed to the upper portion of the lower structure 4. Fix it.

[0005]

Next, a first embodiment of the present invention will be described with reference to FIGS. First, as shown in FIGS. 1 to 3, a steel lower support plate 17 having no opening is formed on the lower surface of a steel lower holding plate 16 having a circular central hole 15 buried in the upper portion of the lower structure 4. The upper ends of a plurality of lower anchor members 19 having a large number of retaining recesses 18 on the peripheral surface are fixed to the steel lower supporting plate 17 by abutting and fixing by welding. Further, a large number of bolt insertion holes 20 are provided on both sides of the steel lower holding member 16 in the width direction of the bridge girder 10, and the fixing bolts 21 are screwed below the bolt insertion holes 20 in the vertical direction. The female screw part 22 for screwing the bolt has the steel lower support plate 17
And a cap 2 for bolt screwing, which has a female screw portion coaxial with the bolt screwing female screw portion 22 and having the same pitch.
3 is fixed to the lower surface of the steel lower support plate 17 by welding. Further, a steel lower holding plate 16 fixed to the lower structure 4, a steel lower supporting plate 17, and a bolt screwing cap 2
The lower holding metal fitting 5 is constituted by 3 and the like.

Next, the configuration of the rubber bearing 1 will be described. First, the lower metal plate 2 is fixed to the lower portion of the rubber layer 24, the upper metal plate 7 is fixed to the upper portion of the rubber layer 24, and a circular central hole 15 is formed in the lower center of the lower metal plate 2. , The upper part of the steel locking projection 3 having a circular cross section is fitted and fixed, and the lower part of the locking projection 3 is fitted and fixed in the lower fitting hole 6 formed by the central hole of the upper part of the steel lower holding plate 16. Then
In addition, the rubber layer 24 of the rubber support 1 is placed on or close to the upper surface of the steel locking projection 3.

FIGS. 2 and 3 show a state in which the steel lower holding plate 16 is fastened at a predetermined position.
A number of upper anchor members 27 are fixed to the upper surface of the steel plate 26, and an annular ring 29 is fixed around a through hole 33 provided at the center of the steel plate 26, and the steel lid plate 30 is The upper holding fitting 11 is fixed by welding.
Is configured. The upper longitudinal axis fitting hole 28 is constituted by the through hole 33 and the through hole of the annular ring 29. Further, the upper metal plate 7 of the rubber bearing body 1 is provided with a bolt insertion hole 32 on both sides in the bridge width direction, and at a position facing the bolt insertion hole 32, a female screw portion for bolting the steel plate 26 is formed. A pair of bolt screwing caps 31 each having a female screw portion for bolt screwing are fixed to the upper surface of the steel plate 26.

FIGS. 7 and 8 show the upper holding metal fitting 11 fixed to the bridge girder 10 and the level adjusting procedure. The bridge girder lifting jack 25 is used for the lower structure 4 and the bridge girder 1.
It is placed between 0 and then the jack girder lifting jack 2
After raising the bridge girder 10 by a small distance by 5, the upper fitting holes 12 in the pair of level adjusting plates 13 and 14 are fitted to the upper support shaft 9 and the level adjusting plates 13 and 14 are attached to the upper metal plate 7. After the top is mounted, the upper holding metal fitting 11 is lowered, and the bridge girder 1 is placed on the pair of level adjusting plates 13 and 14.
0 is cleared. Next, the fixing bolt 21 is mounted over the through hole 32 of the upper metal plate 7, the through hole 32 of the level adjusting plates 13 and 14, the steel plate 26, and the female screw portion of the bolt screwing cap 31.

FIGS. 9 to 12 show a second embodiment of the present invention, in which a locking projection 3 is integrally fixed to a central portion of a lower surface of a lower metal plate 2 by welding or the like, and the locking projection 3 is locked. The projection 3 is fitted in the lower fitting hole 6 formed of a circular central hole in the steel lower holding plate 16, but the other configuration is the same as that of the first embodiment.

[0010]

According to the present invention, the following effects can be obtained because of the configuration described above. A pair of level adjusting plates 13 and 14 are interposed between the upper metal plate 7 and the upper holding metal fitting 11 while the rubber bearing 1 is left without replacing the rubber bearing 1 and the locking projection 3. Therefore, there is an effect that the level of the bridge girder 10 can be adjusted to a constant level without leaving the removed rubber elastic support 1 as it is.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a state in which a pair of level adjusting plates are used in an apparatus for supporting a rubber bearing according to a first embodiment of the present invention at a constant level without removing it.

FIG. 2 is a vertical sectional front view showing an example in which a level adjusting plate is not used in the device for supporting a rubber support at a constant level without removing the rubber bearing according to the first embodiment of the present invention.

FIG. 3 is an enlarged longitudinal front view showing a fixed portion in FIG. 2;

FIG. 4 is a longitudinal sectional front view showing a state in which a high upper support shaft is fitted into a central hole of an upper metal plate.

5 is a vertical cross-sectional front view showing a state in which a pair of level adjusting plates are interposed between the upper metal plate and the upper holding metal fitting in FIG. 4. FIG.

FIG. 6 is a vertical cross-sectional front view showing a state in which level adjustment is performed using a device that supports a rubber bearing according to the first embodiment of the present invention at a constant level without removing it.

FIG. 7 is a longitudinal sectional front view showing, in an enlarged manner, a part of a state in which the level is adjusted by using a device for supporting the rubber bearing at a constant level without removing the rubber bearing according to the first embodiment of the present invention.

FIG. 8 is a longitudinal sectional front view showing an enlarged part of FIG. 7 in the device for supporting the rubber bearing at a constant level without removing the rubber bearing according to the first embodiment of the present invention.

FIG. 9 is an exploded perspective view showing a state in which a pair of level adjusting plates are used in a device for supporting a rubber support at a constant level without removing the rubber bearing according to a second embodiment of the present invention.

FIG. 10 shows an apparatus for supporting a rubber support at a constant level without removing the rubber support according to a second embodiment of the present invention, in which a pair of level adjustment plates are placed on an upper metal plate and an upper support shaft is fitted. It is a vertical side view which shows a state.

FIG. 11 is a longitudinal sectional view showing a state in which an upper holding bracket fixed to a bridge girder in a device for supporting a rubber support at a constant level without removing the rubber bearing according to a second embodiment of the present invention is lowered on a level adjusting plate. FIG.

FIG. 12 is an enlarged longitudinal sectional front view showing a part of FIG. 11 in an apparatus for supporting a rubber support at a constant level without removing it according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rubber bearing 2 Lower metal plate 3 Locking projection 4 Lower structure 5 Lower holding metal 6 Lower fitting hole 7 Upper metal plate 8 Through hole 9 Upper supporting shaft 10 Bridge girder 11 Upper holding metal 12 Upper fitting hole 13 Level adjustment Plate 14 Level adjustment plate 15 Center hole 16 Steel lower holding plate 17 Steel lower support plate 18 Retaining recess 19 Lower anchor member 20 Bolt insertion hole 21 Fixing bolt 22 Bolt female screw portion 23 Bolt screw cap 24 Rubber layer 25 Jack for lifting bridge girder 26 Steel plate 27 Upper anchor member 28 Upper longitudinal fitting hole 29 Ring ring 30 Steel lid plate 31 Bolt screw cap 32 Bolt insertion hole 33 Through hole

Claims (2)

[Claims] 1. A locking projection 3 fixed to a lower metal plate 2 of a rubber bearing 1 is fitted and fixed in a lower fitting hole 6 of a lower holding metal fitting 5 fixed to an upper portion of a lower structure 4, An upper support shaft 9 manufactured separately from the through hole 8 provided in the upper metal plate 7 of the rubber support 1 is fitted into the through hole 8 of the upper metal plate 7 with the bridge girder 10 being lifted. The upper support shaft 9 is attached to the upper holding metal fitting 11 fixed to the bridge girder 10.
Of the upper support shaft 9 and the level adjusting plates 13 and 14 provided with the upper fitting holes 12 of the upper support shaft 9 are fitted to the upper support shaft 9, and the upper part of the level adjusting plates 13 and 14 is inserted through the level adjusting plates 13 and 14. A device for supporting the rubber supporting body on which the upper holding metal fitting 11 is placed on the metal plate 7 at a constant level without removing it. 2. The lower metal plate 2 of the rubber bearing 1,
The rubber bearing according to claim 1, wherein the locking projection 3 is integrally fixed, and the locking projection 3 is fixed to the lower fitting hole 6 of the lower holding metal fitting 5 fixed to the upper portion of the lower structure 4. A device that supports a constant level.