JP6794212B2 - Damper mounting structure - Google Patents

Description

The present invention relates to a damper mounting structure.

Patent Document 1 below discloses a vibration damping device in which a rubber cushioning material is sandwiched between an oil damper and an H-shaped steel to which the oil damper is attached. This suppresses the transmission of solid-borne sound between the building components to which the oil dampers are joined.

Japanese Unexamined Patent Publication No. 2000-240710

However, in the vibration damping device of Patent Document 1, when a compressive force acts on the oil damper during an earthquake, the cushioning material is also compressed and deformed. Therefore, the vibration damping effect of the oil damper is reduced.

In consideration of the above facts, an object of the present invention is to exert the vibration damping effect of the damper while suppressing the vibration propagation between the structures to which the dampers are joined.

The mounting structure of the damper according to claim 1 is a first sandwiching structure in which a bracket provided on one side of a relatively moving structure and a mounting bolt penetrating the bracket are arranged so as to be detachable from both side surfaces of the bracket. The anti-vibration member sandwiched between the plate and the second holding plate, between the first holding plate and one side surface of the bracket, and between the second holding plate and the other side surface of the bracket, and the first. A bearing plate provided between the holding plate and one side surface of the bracket and between the second holding plate and the other side surface of the bracket and having a thickness smaller than that of the vibration isolator, and one end of the first holding plate. Has a damper to which the other end is fixed to the other end of the structure, and the bracket is in contact with the first holding plate and is in a direction orthogonal to the axial direction of the damper. 1 A regulating member for regulating the displacement of the holding plate is provided .

According to the damper mounting structure of claim 1, the first holding plate and the second holding plate are mounted on both side surfaces of the bracket provided on one side of the relatively moving structure with mounting bolts penetrating the bracket. There is. Further, the anti-vibration member is sandwiched between the bracket and the first holding plate and between the bracket and the second holding plate.

As a result, the bracket and the damper are joined via the vibration isolator. Therefore, the micro-vibration generated on one side of the structure is damped by the anti-vibration member and is not easily transmitted to the other side of the damper and the structure. Further, the micro-vibration generated on the other side of the structure is transmitted to the damper, but is damped by the vibration-proof member, and is difficult to be transmitted to one side of the structure. Therefore, it is possible to suppress the propagation of micro-vibrations between the structures.

Further, a bearing plate having a thickness smaller than that of the anti-vibration member is provided between the bracket and the first holding plate and between the bracket and the second holding plate.

When the structure is displaced during an earthquake, the anti-vibration member on the first holding plate side or the second holding plate side shrinks, and the bearing plate is sandwiched between the bracket and the first holding plate or the second holding plate. As a result, the seismic force is transmitted from the bracket to the damper via the bearing plate, and the vibration damping effect of the damper can be exhibited.
In the mounting structure of the damper according to claim 2, the mounting bolt penetrates the four corners of the first holding plate, the vibration isolator member is formed in an annular shape surrounding the mounting bolt, and the bearing plate is formed. The four sides have a square shape facing the mounting bolt.

The damper mounting structure according to claim 3 is arranged so as to be detachable from the side surface of the first bracket with a mounting bolt on the first bracket provided on one side of the relatively moving structure. The first holding plate, the first anti-vibration member sandwiched between the first holding plate and the side surface of the first bracket, and the first holding plate and the side surface of the first bracket are provided. A first bearing plate having a thickness smaller than that of the first anti-vibration member, a second bracket provided on the other side of the structure, and a mounting bolt attached to the second bracket can be brought into contact with and detached from the side surface of the second bracket. Provided between the arranged second holding plate, the second anti-vibration member sandwiched between the second holding plate and the side surface of the second bracket, and between the second holding plate and the side surface of the second bracket. It has a second bearing plate having a thickness smaller than that of the second anti-vibration member, and a damper in which one is fixed to the first holding plate and the other is fixed to the second holding plate . The bracket is provided with a regulating member that comes into contact with the first holding plate and regulates the displacement of the first holding plate in a direction orthogonal to the axial direction of the damper, and the second bracket is provided with the second holding plate. A regulating member is provided that comes into contact with the holding plate and regulates the displacement of the second holding plate in a direction orthogonal to the axial direction of the damper .

According to the damper mounting structure of claim 3 , the first holding plate is mounted by mounting bolts on the first bracket provided on one side of the relatively moving structure. Further, a second holding plate is attached to a second bracket provided on the other side of the structure with mounting bolts. Then, the first anti-vibration member is sandwiched between the first bracket and the first holding plate, and the second anti-vibration member is sandwiched between the second bracket and the second holding plate.

As a result, the first bracket and the damper are connected via the vibration isolator. Further, the second bracket and the damper are connected via the vibration isolator. Therefore, the micro-vibration generated on one or the other side of the structure is damped by the vibration isolator member and is not easily transmitted to the other or one side of the damper and the structure. Therefore, it is possible to suppress the propagation of micro-vibrations between the structures.

Further, a first bearing plate having a thickness smaller than that of the first anti-vibration member is provided between the first bracket and the first holding plate, and a thickness smaller than that of the second anti-vibration member is provided between the second bracket and the second holding plate. A second pressure plate is provided.

When the structure is displaced and the first anti-vibration member is shrunk during an earthquake, the first bearing plate is sandwiched between the first bracket and the first holding plate. As a result, the force from the first bracket can be transmitted to the damper, and the vibration damping effect of the damper can be exhibited.

Further, when the structure is displaced and the second anti-vibration member is shrunk during an earthquake, the second bearing plate is sandwiched between the second bracket and the second holding plate. As a result, the force from the second bracket can be transmitted to the damper, and the vibration damping effect of the damper can be exhibited.
In the mounting structure of the damper according to claim 4, the mounting bolt penetrates the four corners of the first holding plate, and the first anti-vibration member is formed in an annular shape surrounding the mounting bolt. One pressure plate has a square shape with four sides facing the mounting bolts.

In one aspect of the damper mounting structure, the bracket is provided with a regulating member that regulates the displacement of the first holding plate in a direction orthogonal to the axial direction of the damper.

According to the mounting structure of the damper of one aspect , when a force is applied to the first holding plate from a direction other than the direction along the axial direction of the damper, the first holding plate moves in a direction orthogonal to the axial direction of the damper. Is regulated. Therefore, the anti-vibration member sandwiched between the bracket and the first holding plate is suppressed from being deformed in the direction (shearing direction) orthogonal to the axial direction (compression direction). Therefore, the vibration damping effect of the vibration isolator member is likely to be exhibited.

The "axial direction of the damper" is the direction of the member shaft at the time when the damper is installed. Further, the "direction orthogonal to the axial direction of the damper" is a direction including a direction orthogonal to the axial direction of the damper, for example, a direction including up, down, left and right with respect to the axial direction of the damper. Further, the displacement regulated by the regulating member is the relative displacement of the first holding plate with respect to the bracket.

According to the damper mounting structure according to the present invention, it is possible to exert the vibration damping effect of the damper while suppressing the vibration propagation between the structures to which the dampers are joined.

(A) is an elevational view showing the mounting structure of the damper according to the first embodiment, (B) is a sectional view taken along line BB of (A), and (C) is shown in (B). It is an enlarged view of the C part. (A) is a sectional view taken along line 2A-2A in FIG. 1 (A), and (B) is a sectional view taken along line 2B-2B in FIG. 1 (A). (A) shows a state in which the upper structure is displaced in the direction of contracting the oil damper in the damper mounting structure according to the first embodiment, and (B) is displaced in the direction of extending the oil damper by the upper structure. Indicates the state. (A) is an elevational view showing the mounting structure of the damper according to the second embodiment, and (B) is a sectional view taken along line BB of (A).

[First Embodiment]
(Damper mounting structure)
As shown in FIG. 1A, the damper mounting structure 10 according to the first embodiment is a seismic isolation mechanism provided between the upper structure 12 and the lower structure 22 which are movable relative to each other. is there.

The H-shaped steel bracket 14 is projected downward from the upper structure 12, and the H-shaped steel bracket 24 is projected upward from the lower structure 22. An oil damper 30 as a seismic isolation device is arranged between these brackets 14 and 24, and the upper structure 12 and the lower structure 22 are displaced in the lateral direction (horizontal direction in FIG. 1A) during an earthquake. At that time, the oil damper 30 expands and contracts, so that the seismic motion is dampened.

A first holding plate 40A, which is a flat steel plate, is fixed to the end 30A of the rod of the oil damper 30, and the end 30B of the casing of the oil damper 30 is a bracket projecting from the lower structure 22. It is fixed at 24.

(Holding plate, anti-vibration member)
As shown in FIGS. 1A and 1B, the first holding plate 40A is arranged so as to face the flange 14A of the bracket 14 projecting from the upper structure 12, and the first holding plate 40A and the flange 14A are arranged. A rubber anti-vibration member 50A is sandwiched between them.

Further, a second holding plate 40B is arranged so as to face the flange 14B of the bracket 14, and a rubber anti-vibration member 50B is sandwiched between the second holding plate 40B and the flange 14B. The anti-vibration members 50A and 50B may be coil springs or the like, respectively.

The first holding plate 40A, the flange 14A, the flange 14B, and the second holding plate 40B are integrally fixed by mounting bolts 60 that penetrate the anti-vibration members 50A and 50B while sandwiching them. Both ends of the mounting bolt 60 protrude from the first holding plate 40A and the second holding plate 40B, and the nut 51 is screwed into these protruding portions. As a result, the anti-vibration member 50A arranged between the first holding plate 40A and the flange 14A and the anti-vibration member 50B arranged between the second holding plate 40B and the flange 14B are arranged in a compressed state. ..

The anti-vibration member 50A and the anti-vibration member 50B can be further compressed from this state, and can be returned (stretched) to the state before compression. As a result, the first holding plate 40A and the flange 14A can be brought into contact with each other while maintaining the vibration-proofing member 50A, and the second holding plate 40B and the flange 14B can be separated from each other while holding the vibration-proofing member 50A. It is possible to connect and separate from each other while holding the 50B in between.

As shown in FIGS. 2A and 2B, the anti-vibration member 50A and the anti-vibration member 50B each have an annular shape, and the mounting bolt 60 penetrates the inside.

(Pressure plate)
As shown in FIGS. 1A, 1B, and 1C, a steel bearing plate 70A having a thickness smaller than that of the anti-vibration member 50A is provided between the first holding plate 40A and the flange 14A. There is. The bearing plate 70A is welded to the flange 14A and is arranged with a gap between it and the first holding plate 40A.

Similarly, between the second holding plate 40B and the flange 14B, a steel bearing plate 70B having a thickness smaller than that of the anti-vibration member 50B is provided. The bearing plate 70B is welded to the flange 14B and is arranged with a gap between it and the second holding plate 40B.

The bearing plate 70A is arranged on the core wire CL of the oil damper 30, and as shown in FIG. 2A, the center position of the bearing plate 70A substantially coincides with the position through which the core wire CL passes. The bearing plate 70A has a substantially square shape when viewed from the direction along the core wire CL, and its four sides are arranged to face the mounting bolts 60. As a result, for example, as shown by the alternate long and short dash line in FIG. 2A, even if the diameter of the anti-vibration member 50A arranged so as to surround the mounting bolt 60 is increased, the anti-vibration member 50A and the bearing plate 70A Is less likely to interfere with.

Further, as shown in FIG. 2B, the bearing plate 70B is rectangular when viewed from the direction along the core wire CL, and is arranged between the vibration isolator members 50B adjacent in the vertical direction and the horizontal direction. The bearing plates 70A and 70B are not limited to welding, and may be fixed to the flanges 14A and 14B using countersunk screws, bolts, adhesives and the like.

(Regulatory member)
As shown in FIG. 1 (A), a steel receiving plate 80 projecting downward from the surface of the flange 14A from the surface of the flange 14A is welded to the lower surface of the flange 14A. Between the first holding plate 40A and the first holding plate 40A, a rubber vertical movement restricting member 82 that regulates the movement of the first holding plate 40A in the downward direction (vertically downward direction orthogonal to the axial direction of the oil damper 30) is provided. It is provided.

Further, as shown in FIGS. 1B and 1C, steel receiving plates 84 projecting from the surface of the flange 14A toward the side of the first holding plate 40A are provided on both sides of the surface of the flange 14A. It is welded, and as shown in FIG. 1C, the receiving plate 84 is made of steel that restricts the movement of the first holding plate 40A in the lateral direction (horizontal direction orthogonal to the axial direction of the oil damper 30). The horizontal movement restricting member 86 made of steel is welded.

Further, between the receiving plate 84 and the first holding plate 40A, as shown by the alternate long and short dash line in FIG. 1C, vibration isolation made of rubber having a thickness larger than that of the horizontal movement restricting member 86 (thickness t). A member 87 is provided to prevent the horizontal movement restricting member 86 from coming into contact with the first holding plate 40A in normal times. The horizontal movement restricting member 86 and the vibration isolating member 87 are provided so as to be displaced from each other in the vertical direction.

In FIG. 1A, the receiving plate 84, the horizontal movement restricting member 86, and the vibration isolating member 87 are not shown in order to make it easier to understand the elevation structure of the damper mounting structure 10. Further, in order to explain the configurations of the anti-vibration member 87 and the horizontal movement restricting member 86, the anti-vibration member 87 is shown by a solid line in FIG. 1 (B) and the horizontal movement restricting member 86 is shown by a solid line in FIG. 1 (C) for convenience. It is shown by.

(Action / effect)
According to the damper mounting structure 10 according to the first embodiment, as shown in FIG. 3A, the direction in which the upper structure 12 and the bracket 14 contract the rod of the oil damper 30 (arrows in FIG. 3A). When displaced in the direction), the anti-vibration member 50A sandwiched between the flange 14A of the bracket 14 and the first holding plate 40A is compressed. Even if the lower structure 22 and the bracket 24 are displaced in the direction of contracting the rod of the oil damper 30, the vibration isolator 50A is similarly compressed.

When the anti-vibration member 50A is compressed to have a thickness equal to that of the bearing plate 70A, it is supported from the flange 14A of the bracket 14 to the first holding plate 40A fixed to the end of the rod of the oil damper 30 via the bearing plate 70A. Pressure is transmitted.

The bearing plate 70A is made of steel, and its thickness does not easily change even when it receives a compressive force. Therefore, the compressive force received from the flange 14A can be transmitted to the oil damper 30. Therefore, the vibration damping effect of the oil damper 30 is likely to be exhibited. Further, since the anti-vibration member 50A is less likely to be compressed than the thickness of the bearing plate 70A, damage to the anti-vibration member 50A is suppressed.

On the other hand, for example, when there is no bearing plate 70A, the compressive force is transmitted from the flange 14A to the oil damper 30 via the vibration isolator 50A. At this time, since the anti-vibration member 50A made of rubber continues to be elastically deformed, it is difficult to sufficiently transmit the compressive force received from the flange 14A to the oil damper 30. Therefore, the vibration damping effect of the oil damper 30 is reduced. Further, if the anti-vibration member 50A is excessively compressed, it may be damaged.

Further, according to the damper mounting structure 10 according to the first embodiment, as shown in FIG. 3B, the direction in which the upper structure 12 and the bracket 14 extend the oil damper 30 (the direction of the arrow in FIG. 3B). ), The anti-vibration member 50B sandwiched between the flange 14B of the bracket 14 and the second holding plate 40B is compressed. Even if the lower structure 22 and the bracket 24 are displaced in the direction of extending the oil damper 30, the vibration isolator 50B is similarly compressed.

When the anti-vibration member 50B is compressed to have a thickness equal to that of the bearing plate 70B, the supporting pressure is transmitted from the flange 14B of the bracket 14 to the second holding plate 40B via the bearing plate 70B. This supporting pressure is indicated by the arrow M by pressing the nut 51 screwed into the mounting bolt 60 as shown by the arrow N in FIG. 3 (B) and pulling the mounting bolt 60 by the nut 51. As described above, the tensile force is transmitted to the first holding plate 40A fixed to the end portion of the oil damper 30.

The bearing plate 70B is made of steel like the bearing plate 70A, and its thickness does not easily change even when it receives a compressive force. Therefore, the compressive force received from the flange 14B can be transmitted as a tensile force to the oil damper 30 via the second holding plate 40B, the mounting bolt 60, and the first holding plate 40A. Therefore, the vibration damping effect of the oil damper 30 is likely to be exhibited. Further, since the anti-vibration member 50B is less likely to be compressed than the thickness of the bearing plate 70B, damage to the anti-vibration member 50B is suppressed.

The mounting bolt 60 is assumed to have a tensile rigidity that does not cause deformation that would hinder the structural strength when a tensile force is applied.

In the first embodiment, the bearing plates 70A and 70B fixed to the flanges 14A and 14B are made of steel, but the embodiment of the present invention is not limited to this and is thicker than the anti-vibration members 50A and 50B, respectively. If it is small, it may be made of wood, rubber, or a combination of these materials. If the thickness of the bearing plates 70A and 70B is smaller than the vibration isolating members 50A and 50B, the bearing plates 70A and 70B will be the first holding plate 40A and the second holding plate 40B, respectively, when the vibration isolating members 50A and 50B are compressed. The compressive force can be transmitted from the flanges 14A and 14B to the first holding plate 40A and the second holding plate 40B. Further, since the compressive force received by the anti-vibration members 50A and 50B is dispersed, damage to the anti-vibration members 50A and 50B can be suppressed.

Further, the bearing plates 70A and 70B may be fixed to the first holding plate 40A and the second holding plate 40B instead of the flanges 14A and 14B, respectively. Even with this configuration, the compressive force can be transmitted from the flanges 14A and 14B to the first holding plate 40A and the second holding plate 40B.

Further, according to the damper mounting structure 10 according to the first embodiment, as shown in FIG. 1A, it is restricted that the first holding plate 40A moves downward below the first holding plate 40A. A vertical movement restricting member 82 is provided. As a result, the first holding plate 40A is restricted from moving downward due to the weight of the oil damper 30. Therefore, the vibration-proof member 50A sandwiched between the first holding plate 40A and the flange 14A is prevented from being sheared and deformed in the vertical direction.

Further, as shown in FIG. 1C, the receiving plate 84 projecting from the flange 14A is provided with a horizontal movement restricting member 86 that restricts the movement of the first holding plate 40A in the lateral direction. .. As a result, when the oil damper 30 receives a force from a direction other than the member axial direction at the time when the oil damper 30 is installed, the first holding plate 40A is restricted from moving laterally. Therefore, it is possible to prevent the vibration isolator member 50A sandwiched between the first holding plate 40A and the flange 14A from being sheared and deformed in the lateral direction.

Therefore, the anti-vibration member 50A is restricted from being deformed in a direction other than the axial direction of the member when the oil damper 30 is installed, and tends to exert a vibration damping effect.

Either or both of the vertical movement restricting member 82 and the horizontal movement restricting member 86 may be omitted. The mechanism can be simplified by omitting either or both of the vertical movement restricting member 82 and the horizontal movement restricting member 86. In this case, in order to suppress the shear deformation of the vibration isolator member 50A, it is preferable to increase the diameter of the mounting bolt 60 as compared with the configuration in which the vertical movement restricting member 82 and the horizontal movement restricting member 86 are provided.

Further, in the first embodiment, the bracket 14 joined to the upper structure 12, the bracket 24 joined to the lower structure 22, the oil damper 30, the first holding plate 40A, the mounting bolt 60, and the second holding plate The 40B has a non-metal touch configuration that does not come into direct contact with the 40B. The bracket 14, the first holding plate 40A, and the second holding plate 40B are in contact with each other via the anti-vibration member 50A and the anti-vibration member 50B.

That is, the upper structure 12 and the lower structure 22 are metallically insulated and connected via the vibration isolator members 50A and 50B. Therefore, even if microvibration occurs in either the upper structure 12 or the lower structure 22, the microvibration is damped by the vibration isolator members 50A and 50B, so that it is difficult to propagate to the other.

In the first embodiment, the first holding plate 40A and the second holding plate 40B are attached to the bracket 14 of the upper structure 12, but the embodiment of the present invention is not limited to this. For example, the first holding plate 40A and the second holding plate 40B may be attached to the bracket 24 of the lower structure 22. Even with such a configuration, the oil damper 30 can exert a vibration damping effect.

Further, the damper mounting structure 10 in the first embodiment is the mounting structure of the oil damper 30 as a seismic isolation device, but the embodiment of the present invention is not limited to this. For example, instead of the oil damper 30, a steel history damper or the like may be used. That is, any type of damper can be applied as long as it is a damper that receives a force when the upper structure 12 and the lower structure 22 are relatively displaced. The same applies to the second embodiment shown below.

Further, although the brackets 14 and 24 are H-shaped steel in the present embodiment, the embodiment of the present invention is not limited to this. For example, I-shaped steel, C-shaped steel, flat plate, concrete and the like may be used.

[Second Embodiment]
The damper mounting structure 20 according to the second embodiment will be described. The same reference numerals are given to the configurations equivalent to the damper mounting structure 10 according to the first embodiment, and the description thereof will be omitted as appropriate. The same applies to the same action / effect as the damper mounting structure 10 according to the first embodiment.

As shown in FIG. 4A, in the damper mounting structure 20 according to the second embodiment, the first holding plate which is a steel flat plate is attached to one end (bracket 14 side) 32A of the oil damper 32. 40A is fixed, and a second holding plate 40C, which is a flat steel plate, is fixed to the other end 32C of the oil damper 32 (on the side of the bracket 24).

As shown in FIGS. 4A and 4B, the first holding plate 40A is arranged so as to face the flange 14A of the bracket 14 projecting from the upper structure 12, and the first holding plate 40A and the flange 14A are arranged. A rubber anti-vibration member 50A is sandwiched between them. Further, a metal backing plate 80B is arranged so as to face the flange 14B of the bracket 14.

The first holding plate 40A, the flange 14A, the flange 14B, and the backing plate 80B are integrally fixed by a mounting bolt 62 penetrating the first holding plate 40A and the flange 14A with the vibration isolator 50A sandwiched between them. Has been done. Both ends of the mounting bolt 62 protrude from the first holding plate 40A and the backing plate 80B, respectively, and the nut 51 is screwed into these protruding portions. As a result, the anti-vibration member 50A arranged between the first holding plate 40A and the flange 14A is compressed and arranged.

Similarly, the second holding plate 40C is arranged so as to face the flange 24C of the bracket 24 projecting from the lower structure 22, and the rubber anti-vibration member 50C is located between the second holding plate 40C and the flange 24C. Is sandwiched. Further, a metal backing plate 80D is arranged so as to face the flange 24D of the bracket 24. The materials of the backing plates 80B and 80D are arbitrary.

The second holding plate 40C, the flange 24C, the flange 24D, and the backing plate 80D are integrally fixed by the mounting bolt 62 penetrating the vibration isolator 50C while sandwiching the vibration isolator member 50C between the second holding plate 40C and the flange 24C. Has been done. Both ends of the mounting bolt 62 protrude from the second holding plate 40C and the backing plate 80D, respectively, and the nut 51 is screwed into these protruding portions. As a result, the anti-vibration member 50C arranged between the second holding plate 40C and the flange 24C is compressed and arranged.

The bearing plates 70A and 70C according to the second embodiment are joined to the flanges 14A and 24C of the brackets 14 and 24, and their configurations are the same as those of the bearing plates 70A according to the first embodiment, and the description thereof will be omitted. Regarding the receiving plate 80, the vertical movement restricting member 82, the receiving plate 84, and the horizontal movement restricting member 86 formed on the flanges 14A and 24C, respectively, in the second embodiment, the receiving plate 80 and the vertical movement restricting member 82 in the first embodiment are also provided. , The receiving plate 84 and the horizontal movement restricting member 86 have the same configuration, and the description thereof will be omitted.

(Action / effect)
According to the damper mounting structure 20 according to the second embodiment, the direction in which the upper structure 12 and the bracket 14 and the lower structure 22 and the bracket 24 contract the oil damper 32 (direction of the arrow in FIG. 4A). When displaced to, the anti-vibration member 50A sandwiched between the flange 14A of the bracket 14 and the first holding plate 40A is compressed. Similarly, the anti-vibration member 50C sandwiched between the flange 24C of the bracket 24 and the second holding plate 40C is compressed.

When the anti-vibration member 50A is compressed to have a thickness equal to that of the bearing plate 70A, the supporting pressure is transmitted from the flange 14A of the bracket 14 to the first holding plate 40A fixed to the end of the oil damper 32 via the bearing plate 70A. Will be done. Similarly, when the anti-vibration member 50C is compressed to have a thickness equal to that of the bearing plate 70C, it is supported from the flange 24C of the bracket 24 to the second holding plate 40C fixed to the end of the oil damper 30 via the bearing plate 70C. Pressure is transmitted.

Therefore, the compressive force received from the flanges 14A and 24C can be transmitted to the oil damper 32. Therefore, the vibration damping effect of the oil damper 32 is likely to be exhibited. Further, since the anti-vibration members 50A and 50C are not compressed beyond the thickness of the bearing plates 70A and 70C, damage to the anti-vibration members 50A and 50C is suppressed.

Further, according to the damper mounting structure 20 according to the second embodiment, the upper structure 12 and the bracket 14 and the lower structure 22 and the bracket 24 extend the oil damper 32 (direction of the arrow in FIG. 4A). When displaced in the opposite direction), the supporting pressure is transmitted from the flange 14B of the bracket 14 to the backing plate 80B. This supporting pressure presses the nut 51 screwed into the mounting bolt 62, and the nut 51 pulls the mounting bolt 62 to pull the pulling force on the first holding plate 40A fixed to the end of the oil damper 30. Is transmitted.

Similarly, the supporting pressure is transmitted from the flange 24D of the bracket 14 to the backing plate 80D. This supporting pressure presses the nut 51 screwed into the mounting bolt 62, and the nut 51 pulls the mounting bolt 62 to pull the pulling force on the second holding plate 40C fixed to the end of the oil damper 32. Is transmitted. As a result, the vibration damping effect of the oil damper 32 is likely to be exhibited.

In the present embodiment, the flange 14B of the bracket 14 and the flange 24D of the bracket 24 are in contact with the metal backing plates 80B and 80D, respectively, but the embodiment of the present invention is not limited to this. For example, a pressure bearing plate may be interposed between the flange 14B and the backing plate 80B or between the flange 24D and the backing plate 80D. Thereby, the gap width between the first holding plate 40A and the bearing plate 70A or the gap width between the second holding plate 40C and the bearing plate 70C can be adjusted.

Further, the backing plates 80B and 80D may be omitted, and the nut 51 and the flange 14B and the nut 51 and the flange 24D may be brought into direct contact with each other. As a result, the number of members is reduced and the structure is simple, so that workability is improved.

10, 20 Damper mounting structure 12 Upper structure (structure)
22 Substructure (structure)
14 Brackets 30, 32 Oil dampers (dampers)
60, 62 Mounting bolt 40A 1st holding plate 40B, 40C 2nd holding plate 50A, 50B, 50C Anti-vibration member 70A, 70B, 70C Support plate 82 Vertical movement regulation member (regulation member)
86 Horizontal movement regulation member (regulation member)
87 Anti-vibration member

Claims (4)

A bracket provided on one side of a structure that moves relative to each other,
A first holding plate and a second holding plate arranged so as to be contactable and detachable from both side surfaces of the bracket with mounting bolts penetrating the bracket.
Anti-vibration members sandwiched between the first holding plate and one side surface of the bracket, and between the second holding plate and the other side surface of the bracket.
A bearing plate provided between the first holding plate and one side surface of the bracket and between the second holding plate and the other side surface of the bracket and having a thickness smaller than that of the vibration isolator member.
A damper having one end fixed to the first holding plate and the other end fixed to the other side of the structure.
Have,
A damper mounting structure , wherein the bracket is provided with a regulating member that comes into contact with the first holding plate and regulates the displacement of the first holding plate in a direction orthogonal to the axial direction of the damper. The mounting bolt penetrates the four corners of the first holding plate and penetrates.
The anti-vibration member is formed in an annular shape surrounding the mounting bolt.
The bearing plate has a square shape with four sides facing the mounting bolts.
The damper mounting structure according to claim 1. A first bracket provided on one side of a relative moving structure,
A first holding plate arranged on the first bracket so as to be detachable from the side surface of the first bracket with mounting bolts,
A first anti-vibration member sandwiched between the first holding plate and the side surface of the first bracket,
A first bearing plate provided between the first holding plate and the side surface of the first bracket and having a thickness smaller than that of the first anti-vibration member.
A second bracket provided on the other side of the structure and
A second holding plate arranged on the second bracket so as to be detachable from the side surface of the second bracket with mounting bolts.
A second anti-vibration member sandwiched between the second holding plate and the side surface of the second bracket,
A second bearing plate provided between the second holding plate and the side surface of the second bracket and having a thickness smaller than that of the second anti-vibration member,
It has a damper, one of which is fixed to the first holding plate and the other of which is fixed to the second holding plate.
The first bracket is provided with a regulating member that comes into contact with the first holding plate and regulates the displacement of the first holding plate in a direction orthogonal to the axial direction of the damper.
A damper mounting structure , wherein the second bracket is provided with a regulating member that comes into contact with the second holding plate and regulates the displacement of the second holding plate in a direction orthogonal to the axial direction of the damper. The mounting bolt penetrates the four corners of the first holding plate and penetrates.
The first anti-vibration member is formed in an annular shape surrounding the mounting bolt.
The first bearing plate has a square shape with four sides facing the mounting bolts.
The damper mounting structure according to claim 3.