JPH07127019A - Shearing-deforming bearing device with rubber bearing body easy to change - Google Patents

Abstract

PURPOSE:To facilitate the change of a rubber bearing body and allow the rubber bearing body to be easily shearing-deformed. CONSTITUTION:A rubber bearing body 4 is formed of a rubber layer 1 and a lower metal plate 2 and an upper metal plate 3 fixed to the lower part and upper part of the rubber layer 1. Plural lower bolts 5 are inserted, from above, through both sides, in the width direction of an upper structure 10, of the lower metal plate 2 of the rubber bearing body 4, and these lower bolts 5 are screwed with lower female screw members 6 with anchor members brought into contact with the lower face of the lower metal plate 2. The lower female screw members 6 with the anchor members are embedded in a lower structure 7. Plural upper bolts 8 are then inserted, from below, through both sides, in the width direction or the upper structure 10, of the upper metal plate 3 of the rubber bearing body 4, and these upper bolts 8 are screwed with upper female screw members 9 with anchor members brought into contact with the upper face of the upper metal plate 3. The upper female screw members 9 with the anchor members are embedded in the upper structure 10. Jack bearing members 11 are fixed to both sides, in the width direction of the upper structure 10, of the upper face of the lower metal plate 2, and the upper metal plate 3 is provided with jack receiving parts 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing device in which a rubber bearing can be replaced easily and quickly, and a rubber layer can be shear-deformed.

[0002]

2. Description of the Related Art Conventionally, as an upper structure supporting device having a rubber supporting member, one disclosed in Japanese Utility Model Publication No. 3-42088 is known.

[0003]

In the case of the above-mentioned conventional upper structure bearing device having a rubber bearing, the upper part of the anchor bar is fitted in the base plate and the lower part of the anchor bar is fitted in the upper shoe. Therefore, when exchanging the rubber bearing, it is necessary to extract the upper structure from the base plate as well as move the upper structure up to the extent that the lower part of the anchor bar can be extracted from the upper shoe, Therefore, the amount of upward movement of the upper structure is increased, the stroke of the jack for raising the upper structure is increased, and it takes a long time to replace the rubber bearing. Further, in the case of the above-mentioned conventional superstructure support device, since no shear deformation device is provided, there is a disadvantage that the shear deformation cannot be applied to the rubber layer 1 of the rubber support 4 immediately after the installation of the support device. .

[0004]

In order to advantageously solve the above-mentioned problems, in a shear deformation bearing device having an easily replaceable rubber bearing of the present invention, a rubber layer 1 and a lower portion fixed to the lower portion and the upper portion thereof are provided. A rubber support 4 is formed by the metal plate 2 and the upper metal plate 3, and a plurality of lower bolts 5 are inserted from above on both sides of the lower metal plate 2 of the rubber support 4 in the width direction of the upper structure. The lower bolt 5 is screwed into a lower female screw member 6 with an anchor member that is in contact with the lower surface of the lower metal plate 2, and the lower female screw member 6 with an anchor member is embedded in the lower structure 7, and the rubber bearing 4 is attached. On both sides of the upper metal plate 3 in the width direction of the upper structure, a plurality of upper bolts 8 are inserted from below, and the upper bolts 8 are brought into contact with the upper surface of the upper metal plate 3 with an upper female screw member 9 with an anchor member. Screwed into The upper female screw member 9 with the anchor member is embedded in the upper structure 10, and the jack support members 11 are fixed to both sides of the upper surface of the lower metal plate 2 in the width direction of the upper structure, and the upper metal plate 3 is jacked. Receiver 1
2 is provided.

[0005]

1 to 5 show the usage state of a shear deformation bearing device having an easily replaceable rubber bearing according to an embodiment of the present invention, in which a rubber layer 1 and a lower portion fixed to the lower portion thereof are used. A rubber support 4 is constituted by the metal plate 2 and the upper metal plate 3 fixed to the upper part of the rubber layer 1, and a pair of rubber supports 4 is formed on both sides of the lower metal plate 2 in the width direction (left-right direction) of the upper structure 10. Through holes 13 for bolt insertion are provided at intervals in the longitudinal direction (front-rear direction) of the upper structure 10, and on both sides of the lower metal plate 2 in the width direction of the upper structure 10, the center of the upper structure in the longitudinal direction. At the jack support member 11
Are fixed by welding, and the rib plate 14 is abutted and fixed by welding across both front and rear surfaces of the jack support member 11 and the upper surface of the lower metal plate 2.

Upper structure 10 on the upper metal plate 3
On both sides in the width direction of the upper end of the jack supporting member 11 and the recesses 15 for accommodating the jacks 15, on both sides of the upper structure 10 in the upper metal plate 3 in the width direction, The long holes 17 are provided in front of and behind the recess 16.

Through holes 1 for inserting respective bolts in the lower metal plate 2.
3, a lower bolt 5 is inserted from above, and the lower bolt 5 is screwed onto an upper portion of a female screw member 19 which is fixed to the lower portion with a flanged anchor member 18 by welding.
The upper surface of the female screw member 19 is pressed against the lower surface of the lower metal plate 2. Further, the anchor member 18 and the female screw member 19 constitute a lower female screw member 6 with an anchor member.

The lower surface of the lower metal plate 2 is placed on the upper surface of the lower structure 7, the lower female screw member 6 with an anchor member is embedded in the lower structure 7, and the upper surface of the upper metal plate 3 is A lower slide plate 22 made of fluorinated ethylene is fixed with an adhesive, and an upper end plate 23 made of steel and an upper slide plate 24 fixed to the lower surface of the upper end plate 23 with an adhesive are It is slidably mounted on the upper surface.

Long holes 1 for inserting the respective bolts in the upper metal plate 3
7, an upper bolt 8 is inserted from below, and the upper bolt 8 is screwed to a lower portion of a female screw member 21 which is fixed by welding by fixing a flanged anchor member 20 to the upper portion of the upper metal plate 3. The upper bolt 8 is inserted from below over each long hole 17, the lower slide plate 22, the upper end plate 23, and the upper slide plate 24, and the upper bolt 8 is welded by screwing the flanged anchor member 20 onto the upper portion. The lower surface of the female screw member 21 fixed is screwed, the lower surface of the female screw member 21 is pressed against the upper surface of the upper slide plate 24, and the anchor member 20 and the female screw member 21 constitute the upper female screw member 9 with an anchor member. ing. The upper female screw member 9 with the anchor member is the upper structure 1
0, and the lower surface of the female screw member 21 is pressed against the upper surface of the upper end plate 23. Further, the upper female screw member 9 with an anchor member is embedded in the concrete constituting the upper structure 10.

After the concrete of the lower structure 7 and the upper structure 10 is hardened, as shown in FIG. 6, the jack support member 25 is attached to the jack receiving portion 12 of the upper metal plate 3.
Is fixed by a bolt 26, and the jack support member 2
A jack 15 is interposed between the jack 5 and the jack support member 11, and a predetermined amount of shear deformation is applied by the jack 15.

Next, a plurality of spacers 27 are inserted between the upper bolt 8 and the elongated hole 17, and the upper bolt 8 is tightened so that the portion around the washer 28 fitted to the upper bolt 8 is removed. It is pressed against the lower surface of the upper metal plate 3. Next, the jack 15, the jack support member 25, and the bolt 26 are removed, and when the contraction period of the upper structure 10 elapses, the state shown in FIG. 1 is obtained.

When replacing the rubber bearing 4, the lower bolts 5 are unscrewed from the female screw member 19, the upper bolts 8 are unscrewed from the female screw member 21, and then the upper structure 1
After moving 0 by a very small amount, the rubber support 4 is pulled laterally and removed.

Next, the rubber bearing 4 which has been previously sheared and deformed
Is inserted between the lower structure 7 and the upper structure 10, and then the upper structure 10 is lowered. Then, the lower bolt 5 is screwed into the female screw member 19, and the upper bolt 8 is screwed into the female screw member 21. Then, if necessary, the rubber layer 1 of the rubber support 4 is subjected to shear deformation by the above-mentioned means.

[0014]

According to the present invention, the rubber bearing 4 is constituted by the rubber layer 1 and the lower metal plate 2 and the upper metal plate 3 fixed to the lower and upper portions thereof, and the lower metal plate of the rubber bearing 4 is formed. 2, a plurality of lower bolts 5 are inserted from above on both sides in the width direction of the upper structure, and the lower bolts 5 are screwed into a lower female screw member 6 with an anchor member that is in contact with the lower surface of the lower metal plate 2. The lower female screw member 6 with the anchor member is embedded in the lower structure 7, and a plurality of upper bolts 8 are inserted from below on both sides of the upper metal plate 3 of the rubber support 4 in the width direction of the upper structure. The upper bolt 8
The upper metal plate 3 is screwed into an upper female screw member 9 with an anchor member that is in contact with the upper surface of the upper metal plate 3, and the upper female screw member 9 with an anchor member is embedded in the upper structure 10.
Since the jack supporting members 11 are fixed on both sides of the upper structure in the width direction of the upper structure, and the jack receiving portions 12 are provided on the upper metal plate 3, if the rubber supporting body 4 needs to be replaced, After the bolt 5 and the upper bolt 8 are unscrewed, the upper structure 10 is slightly moved upward, so that the rubber bearing 4 can be replaced easily and quickly, and the rubber in the bearing device immediately after installation can be replaced. When the rubber layer 1 of the support 4 is subjected to preliminary shear deformation, the jack support member 11 fixed to the upper surface of the lower metal plate 2 is used.
By operating the jack 15 interposed between the above and the jack receiving portion 12 of the upper metal plate 3, shear deformation can be easily applied to the rubber layer 1.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a shear deformation bearing device having an easily replaceable rubber bearing according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a vertical sectional side view showing a lower left portion of FIG. 1 in an enlarged manner.

5 is a vertical cross-sectional side view showing an enlarged upper left side portion of FIG. 1. FIG.

FIG. 6 is a vertical cross-sectional side view showing a state in which the rubber layer of the rubber support is sheared and deformed.

FIG. 7 is a vertical sectional side view showing a state in which a plurality of spacers are inserted into the long holes of the rubber support.

[Explanation of symbols]

 1 rubber layer 2 lower metal plate 3 upper metal plate 4 rubber bearing 5 lower bolt 6 lower female screw member with anchor member 7 lower structure 8 upper bolt 9 upper female screw member with anchor member 10 upper structure 11 jack bearing member 12 jack receiving Part 13 Bolt insertion hole 14 Rib plate 15 Jack 16 Recess 17 Long hole 18 Anchor member with flange 19 Female screw member 20 Anchor member 21 Female screw member 22 Lower sliding plate 23 Upper end plate 24 Upper sliding plate 25 Jack bearing member 26 Bolt 27 Spacer 28 washers

Claims (1)

[Claims] 1. A rubber support 4 is constituted by a rubber layer 1 and a lower metal plate 2 and an upper metal plate 3 fixed to the lower and upper parts thereof, and the upper structure width of the rubber support 4 in the lower metal plate 2. On the both sides of the direction, a plurality of lower bolts 5 are inserted from above, and the lower bolts 5 are screwed into a lower female screw member 6 with an anchor member that is in contact with the lower surface of the lower metal plate 2, The female screw member 6 is embedded in the lower structure 7, and a plurality of upper bolts 8 are inserted from below on both sides of the upper metal plate 3 of the rubber support 4 in the width direction of the upper structure. The upper female screw member 9 with an anchor member, which is in contact with the upper surface of the metal plate 3, is screwed into the upper female screw member 9 with an anchor member, and the upper female screw member 9 with an anchor member is embedded in the upper structure 10. Widthwise A shear deformation bearing device having an easily replaceable rubber bearing on which a jack bearing member 11 is fixed and a jack bearing portion 12 is provided on the upper metal plate 3.