JP2016017629A - Vibration control device and vibration control structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform an efficient vibration control operation even if a displacement amount of a building is low.SOLUTION: This invention relates to a vibration control device comprising a rotating member including a first member having a first pin, a second member having a second pin, a first engaging part engaged with the first pin and a second engaging part engaged with the second pin; and an attenuation material installed in at least one of between the first member and the rotating member and between the second member and the rotating member; and when the first member and the second member are relatively moved in a crossing direction of a prescribed direction while keeping a relative distance in a prescribed direction, the rotating member is rotated in respect with the first member and the second member.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vibration damping device and a vibration damping structure.

  Technology related to damping structures for wooden buildings has been developed. In particular, many structures that use the frictional force of horizontally moving members have been developed as damping structures for wooden buildings.

  Patent Document 1 discloses that when a wall plate is stacked and mounted in multiple stages, a damping damping dowel having superior damping performance compared to a wooden dowel is used. Patent Document 2 discloses that vibration energy is absorbed by friction between one surface and the other surface of the friction damping member and the inner surface of the fitting groove.

JP 2009-2042 A JP 2011-144621 A

  For example, when damping is performed using the frictional force of a member that is displaced in the horizontal direction, the friction energy that can be absorbed depends on the amount of relative displacement between the members, so the damping capacity also depends on the amount of relative displacement. It will be a thing. However, the horizontal relative displacement amount between the members of the wooden structure is not so large in the excitation due to an earthquake or the like. Therefore, since the amount of energy that can be absorbed is not large, efficient vibration control cannot be performed. Therefore, it is desirable to perform vibration suppression efficiently even when the relative displacement between members in the structure is small.

  The present invention has been made in view of such circumstances, and an object of the present invention is to efficiently perform vibration suppression even when the relative displacement amount between members is small.

In order to achieve such an object, a vibration damping device according to the present invention includes a first member having a first pin, a second member having a second pin, and a first engagement that engages with the first pin. A rotating member having a portion and a second engaging portion that engages with the second pin, between the first member and the rotating member, and between the second member and the rotating member, A damping member provided on at least one of the first member and the second member when the first member and the second member relatively move in the cross direction of the predetermined direction while maintaining a relative distance in the predetermined direction, The rotating member rotates with respect to the first member and the second member.
By doing in this way, when the 1st member and the 2nd member move relatively, since the 1st pin and the 2nd pin are engaging with the 1st engaging part and the 2nd engaging part, respectively, a rotation member Can be rotated. At this time, since the attenuation material is provided between at least one of the first member and the rotation member and between the second member and the rotation member, the displacement energy is absorbed by the rotational displacement of the attenuation material. be able to. The relative movement between the first member and the second member is a relative movement in the intersecting direction while maintaining a relative distance in a predetermined direction. The intersecting direction is set as a relative displacement direction between the members of the structure. By providing the damping structure, the relative displacement between the members is converted into the rotational displacement of the damping material. And since arrangement | positioning of each element can be adjusted so that the rotational displacement amount of an attenuation | damping material may become large, even if it is a case where the relative displacement amount between members is small, it can dampen efficiently.

Further, in the vibration damping device according to the present invention, the first engagement portion has a long hole that is long in the intersecting direction and engages with the first pin, and the second engagement portion is The second pin has a round hole that is rotatably engaged.
By doing so, the first pin can be moved in the direction of the long hole of the first engagement portion while the second pin is rotatably constrained by the round hole of the second engagement portion. And the second member can be rotated around the second pin when the second member and the second member move relative to each other while maintaining a relative distance in a predetermined direction. And even if it is a case where the amount of relative displacement between members is small, since a rotation member can be rotated around the 2nd pin, it can control efficiently by rotation displacement of a damping material.

Further, in the vibration damping device according to the present invention, the first member and the second member are arranged in a common plane, the rotating member is arranged in a plane parallel to the common plane, the first pin and the second pin Both are pins protruding in the normal direction of the common plane.
By doing so, the first pin protruding from the first member is engaged with the first engaging portion of the rotating member, and the second pin protruding from the second member is engaged with the second engaging portion of the rotating member. Can be combined.

Further, in the vibration damping device according to the present invention, when the rotating member rotates with respect to the first member and the second member, the perpendicular mapping of the outer shape of the rotating member is the first member and the first member. It is in the outer shape of two members.
By doing in this way, even if the rotating member is rotationally displaced with respect to the first member and the second member, the outer shape of the rotating member is prevented from protruding from the first member and the second member. Can be prevented from being disturbed.

In the vibration damping device according to the present invention, the damping material is provided on an outer side than between the first engagement portion and the second engagement portion.
By doing in this way, when the rotating member is rotationally displaced with respect to the first member and the second member, the rotational displacement amount of the damping material can be increased. Further, vibration can be suppressed by absorbing displacement energy more efficiently.

In the vibration damping device according to the present invention, the damping material is provided both between the first member and the rotating member and between the second member and the rotating member. And
By doing in this way, both the damping material provided between the first member and the rotating member and the damping material provided between the second member and the rotating member absorb the displacement energy. Therefore, vibration can be controlled more efficiently.

The vibration damping device according to the present invention further includes a third member including a first pin receiving portion that rotatably supports the first pin, and a second pin receiving portion that rotatably supports the second pin. A damping member is provided between at least one of the third member and the rotating member and at least one of the fourth member and the rotating member.
By doing in this way, since the rotation member is also rotationally displaced with respect to the third member and the fourth member, at least between the third member and the rotation member and between the fourth member and the rotation member. Vibration can be efficiently suppressed by further using the damping material provided in either one of them.

Further, in the vibration damping structure including the vibration damping device described above, a first wall member movable in the intersecting direction together with the first member, and a second wall member movable in the intersecting direction together with the second member; It is characterized by providing.
By doing in this way, when the 1st wall member and the 2nd wall member move relatively in the crossing direction, the 1st member and the 2nd member of a damping device move relatively in the crossing direction Therefore, the vibration damping device can efficiently absorb the displacement energy in the intersecting direction between the first wall member and the second wall member.

The vibration damping structure may further include a column member that rotatably supports the end portions of the first wall member and the second wall member.
In this way, when the column member is deformed so as to bend, the first wall member and the second wall member can be displaced relative to each other in the crossing direction, so that the vibration damping device can control the deflection displacement energy of the column member. It can be absorbed efficiently.

  As described above, when the first member and the second member are relatively moved, the first pin and the second pin are engaged with the first engaging portion and the second engaging portion, respectively, so that the rotating member is rotated. Can be made. At this time, since the attenuation material is provided between at least one of the first member and the rotation member and between the second member and the rotation member, the displacement energy is absorbed by the rotational displacement of the attenuation material. be able to. The relative movement between the first member and the second member is a relative movement in the intersecting direction while maintaining a relative distance in a predetermined direction. The intersecting direction is set as a relative displacement direction between the members of the structure. By providing the damping structure, the relative displacement between the members is converted into the rotational displacement of the damping material. And since arrangement | positioning of each element can be adjusted so that the rotational displacement amount of an attenuation | damping material may become large, even if it is a case where the relative displacement amount between members is small, it can dampen efficiently.

2 is a plan view of the vibration damping device 10. FIG. FIG. 2 is a cross-sectional view of the vibration damping device 10 taken along the line AA. 2 is a cross-sectional view of the vibration damping device 10 along BB. It is explanatory drawing of the damping structure. It is explanatory drawing of the damping structure 1 when a displacement arises. It is BB sectional drawing of the damping device 10 when a relative displacement arises.

  Hereinafter, an embodiment of a vibration damping device 10 and a vibration damping structure 1 using the vibration damping device 10 will be described with reference to the accompanying drawings.

  FIG. 1 is a plan view of the vibration damping device 10. The vibration damping device 10 is incorporated in a vibration damping structure 1 described later. FIG. 1 shows a first side plate 11 (corresponding to a first member) and a second member 12 (corresponding to a second member) in the vibration damping device 10. Further, a screw 18 and a sliding material 19 described later are shown. Further, FIG. 1 shows XYZ coordinate axes for later explanation.

  FIG. 2 is a cross-sectional view of the vibration damping device 10 taken along the line AA. FIG. 3 is a BB cross-sectional view of the vibration damping device 10. Hereinafter, the internal structure of the vibration damping device 10 will be described with reference to these drawings. In these figures, the XYZ coordinate axes are also shown for later explanation.

  The vibration damping device 10 includes a first side plate 11, a second side plate 12, a third side plate 13 (corresponding to a third member), a fourth side plate 14 (corresponding to a fourth member), and a first viscous body. 16A, a second viscous body 16B, a third viscous body 16C, a fourth viscous body 16D, and an intermediate plate 15 (corresponding to a rotating member).

  The first side plate 11 and the third side plate 13 are disposed to face each other in the Z-axis direction. The second side plate 12 and the fourth side plate 14 are also arranged to face each other in the Z-axis direction. Further, the first side plate 11 and the second side plate 12 are arranged so as to be aligned in the Y-axis direction. The third side plate 13 and the fourth side plate 14 are also arranged so as to be aligned in the Y-axis direction. In other words, the first side plate 11 and the second side plate 12 are arranged in one common plane, and the third side plate 13 and the fourth side plate are arranged in another common plane.

  The first side plate 11, the second side plate 12, the third side plate 13, and the fourth side plate 14 are rectangular plates having the same side length in the X-axis direction. When not receiving a displacement described later, these side plates are arranged so that the sides coincide with each other in the X-axis direction.

  The first side plate 11 and the third side plate 13 are fixed with screws 18 with a spacer 17 sandwiched between the corners. Also, the second side plate 12 and the fourth side plate 14 are also screwed with screws 18 with spacers 17 sandwiched at the four corners.

  3 is a BB cross section in FIG. 2, and therefore, the third side plate 13 and the fourth side plate 14 are shown. However, due to the effect of the above-described screwing, the X-axis direction and the Y-axis of the third side plate 13 are shown. The displacement in the direction is the same as the displacement of the first side plate 11 in the X axis direction and the Y axis direction. The displacement of the fourth side plate 14 in the X-axis direction and the Y-axis direction is the same as that of the second side plate 12. Therefore, in the following, although the third side plate 13 and the fourth side plate 14 are shown in FIG. 3, the displacement of the first side plate 11 and the second side plate 12 may be described as an example for convenience of explanation. Therefore, in FIG. 3, reference numeral 11 is shown in parentheses next to reference numeral 13, and reference numeral 12 is shown in parentheses next to reference numeral 14.

  A sliding material 19 is provided between each of the first side plate 11 and the second side plate 12. A sliding material 19 is also provided between the third side plate 13 and the fourth side plate 14. By doing in this way, the 1st side plate 11 and the 2nd side plate 12 can be smoothly displaced relatively to a X-axis direction so that it may mention later. Further, the third side plate 13 and the fourth side plate 14 can be smoothly displaced relatively in the X-axis direction.

  The first side plate 11 includes a first pin 11a that protrudes in the Z-axis direction. The 1st pin 11a is a round pin which has a column shape, and engages with the long hole 15a mentioned later. The second side plate 12 includes a second pin 12a protruding in the Z-axis direction. The 2nd pin 12a is a round pin which has a column shape, and engages with round hole 15b mentioned below.

  The third side plate 11 includes a first pin receiving portion 13a that supports the first pin 11a described above. The fourth side plate 14 includes a second pin receiving portion 14a that supports the above-described second pin 12a.

  An intermediate plate 15 is disposed between the first side plate 11 and the third side plate 13 and between the second side plate 12 and the fourth side plate 14. The middle plate 15 is a rectangular plate. The middle plate 15 is arranged in parallel with the planes of the first side plate 11 and the second side plate 12.

  The middle plate 15 is formed with a long hole 15a longer in the Y-axis direction on the Y-axis positive direction side than the center. Further, a round hole 15b is formed in the intermediate plate 15 on the Y axis negative direction side of the center.

  The long hole 15a is a through hole. The long hole 15a is formed such that the first pin 11a is relatively movable in the long axis direction. The round hole 15b is also a through hole. The round hole 15b is formed such that the second pin 12a is rotatable about the round hole 15b.

  Further, the first viscous body 16A, the second viscous body 16B, the third viscous body 16C, and the fourth viscous body are fixed to the intermediate plate 15. The first viscous body 16A to the fourth viscous body 16D are provided outside the space between the long hole 15a and the round hole 15b. Further, the first viscous body 16 </ b> A is fixed to the inside of the first side plate 11. The second viscous body 16B is fixed to the inside of the second side plate 12. The third viscous body 16C is fixed inside the third side plate 13. The fourth viscous body 16D is fixed inside the fourth side plate 14.

  The first viscous body 16A, the second viscous body 16B, the third viscous body 16C, and the fourth viscous body 16D exhibit a damping effect due to their own viscosity when subjected to deformation. As these materials, for example, various polymer materials such as rubber materials, acrylic materials, asphalt materials, and silicon materials can be employed. Moreover, as an adhering method, it can be bonded by an adhesive or the like.

  In this way, as will be described later, the first pin 11a can be moved in the long hole direction of the long hole 15a while the second pin 12a is rotatably constrained by the round hole 15b. Even when the side plate 11 and the second side plate 12 move relative to each other, the intermediate plate 15 can be rotated around the second pin 12a. As will be described later, even if the relative displacement between the wall plates 50 of the damping structure 1 is small, the middle plate 15 can be rotated around the second pin 12a, so the first viscous body 16A. The rotational displacement amount of the second viscous body 16B, the third viscous body 16C, and the fourth viscous body 16D can be increased.

  That is, the intermediate plate 15 is configured to be rotatable about the second pin 12a, and the first pin 11a engages with the long hole 15a, so that the first side plate 11 and the second side plate 12 are in the X-axis direction. Can be displaced relative to each other. At this time, since the intermediate plate 15 is sandwiched between the four side plates via the first viscous body 16A to the fourth viscous body 16D, the energy due to the relative displacement is absorbed by the deformation of the viscous bodies. Will be. Even when the first side plate 11 and the second side plate 12 are relatively displaced in the X-axis direction, they return to their original positions due to the restoring forces of the first viscous body 16A to the fourth viscous body 16D. I will try. The arrangement of each element at the time of displacement will be described later.

  The vibration damping device 10 thus formed is installed on, for example, a wooden board wall. Hereinafter, the vibration damping structure 1 when applied to a wooden board wall will be described.

  FIG. 4 is an explanatory diagram of the vibration damping structure 1. FIG. 4 shows the first beam 20, the two columns 30 that support the first beam 20 from below, and the second beam 40 sandwiched on both sides by the columns 30. Here, XYZ coordinate axes are also shown for explanation. In addition, in the vibration damping device 10 shown in FIG. 4, the intermediate plate 15, the first viscous body 16 </ b> A, and the second viscous body 16 </ b> B are shown in a transparent manner so that the internal state can be seen.

  A plate wall mounting plate 31 having a plate wall mounting portion 31 a is provided inside each of the two columns 30. Each end of the plate wall 50 is fixed to the plate wall mounting portion 31a so as to be rotatable with respect to the axis of the bolt 51 by a bolt 51 and a nut (not shown).

  In addition, although the four plate walls 50 are provided, the code | symbol of 50-1 to 50-4 is attached | subjected sequentially from the top for convenience of explanation. When the code | symbol 50 is simply used, it shall represent the plate wall as a general term of the plate walls 50-1 to 50-4.

  A plate wall upper cavity 50a is provided from the plate wall 50-2 to the plate wall 50-4. Further, a plate wall lower cavity 50b is provided from the plate wall 50-1 to the plate wall 50-3.

  The plate wall lower cavity 50b is a cavity in which a portion including the first side plate 11 and the third side plate 13 of the above-described vibration damping device 10 is accommodated. The plate wall upper cavity 50a is a cavity in which a portion including the second side plate 12 and the fourth side plate of the vibration damping device 10 described above is accommodated.

  The plate wall lower cavity 50 b substantially matches the shape of the portion including the first side plate 11 and the third side plate 13. Further, the plate wall upper cavity 50 a substantially matches the shape of the portion including the second side plate 12 and the fourth side plate 14. For this reason, if the plate walls 50 are relatively displaced in the X-axis direction, the first side plate 11 (third side plate 13) and the second side plate 12 (fourth side plate 14) are relatively displaced.

  FIG. 5 is an explanatory diagram of the vibration damping structure 1 when displacement occurs. Each element shown in FIG. 5 is the same as that of FIG. For example, it is assumed that the column 30 is tilted in the X-axis direction due to the rolling of an earthquake. The displacement of the plate wall 50 at this time will be described by paying attention to the plate wall 50-1 and the plate wall 50-2.

  As shown in FIG. 5, when the column 30 is displaced in the X axis positive direction, the plate wall 50-1 is displaced in the X axis positive direction relative to the plate wall 50-2. In addition, such a relationship is the same also about the plate wall 50-2 and the plate wall 50-3, and is the same also about the plate wall 50-3 and the plate wall 50-4.

  As described above, when the plate walls 50 are relatively displaced in the X-axis direction, the first side plate 11 and the second side plate 12 are also relatively displaced. Therefore, the first side plate 11 is displaced in the positive direction of the X axis relative to the second side plate 12.

  Thus, when the column 30 is deformed so as to bend, the wall plates 50 are relatively displaced in the horizontal direction. Since the damping material of the vibration damping device 10 is deformed by the horizontal relative displacement, the vibration damping device 10 can efficiently absorb energy generated by an external force due to an earthquake or the like.

  FIG. 6 is a BB cross-sectional view of the vibration damping device 10 when the relative displacement occurs. FIG. 6 shows the vibration damping device 10 when displacement occurs as shown in FIG. Reference numerals 16A to 16D indicated by broken lines indicate positions of the first viscous body 16A to the fourth viscous body 16D when no displacement occurs.

  Suppose that the first side plate 11 and the second side plate 12 are relatively displaced by a distance d in the X-axis direction. At this time, paying attention to the first viscous body 16A, the first viscous body 16A rotates and moves by θ about the second pin 12a as shown in FIG. Since the distance from the center of the first viscous body 16A to the center of the second pin 12a is r1, the first viscous body 16A is extended by r1 · θ. At this time, since the first viscous body 16A is disposed at a position farther from the second pin 12a than the first pin 11a, the displacement r1 · θ can be secured larger. The same applies to the third viscous body 16C.

  Further, since the distance from the center of the second viscous body 16B to the center of the second pin 12a is r2, the second viscous body 16B is stretched by r2 · θ. At this time, the second viscous body 16B can be secured at a larger displacement amount r2 · θ by disposing the second viscous body 16B further away from the second pin 12a. The same applies to the fourth viscous body 16D.

  As described above, when the first side plate 11 and the second side plate 12 are relatively moved, the first pin 11a and the second pin 12a are engaged with the long hole 15a and the round hole 15b, respectively. Can be rotated. At this time, since the first viscous body 16A and the second viscous body 16B are provided between the first side plate 11 and the middle plate 15 and between the second side plate 12 and the middle plate 15, respectively, the viscous body rotates. Displacement energy can be absorbed by displacing.

  By making the relative movement direction of the first side plate 11 and the second side plate 12 coincide with the relative movement direction of the wall plates 50, the displacement of the wall plate 50 is converted into the rotational displacement of the first viscous body 16A and the second viscous body 16B. Is done. And since the arrangement of each element can be adjusted so that the rotational displacement amount of the first viscous body 16A and the second viscous body 16B becomes large, even if the displacement amount of the column 30 is small, vibration suppression is performed efficiently. It can be performed.

  In FIG. 6, the relative displacement amount between the first side plate 11 and the second side plate 12 is d. If the viscous body is sandwiched between the first side plate 11 and the second side plate 12, the energy that can be absorbed is proportional to the displacement amount d. As shown in FIG. 6, the relative displacement amount d is considerably smaller than the above-described r1 · θ, and therefore the amount of energy that can be absorbed is also considerably small.

  Moreover, a viscous material having a large area cannot be disposed between the first side plate 11 and the second side plate 12 due to the limitation of the thickness of the plate wall. On the other hand, in the vibration damping device 10 according to the present embodiment, the viscous body is arranged at a position parallel to the surface of the plate wall, so that the area is secured as wide as the first viscous body 16A. Can do. That is, since a viscous body having a large area can be used, the amount of energy absorption can be increased more easily.

  Reference is now made to FIG. 3 again. In FIG. 3, a space is provided above the intermediate plate 15 by a distance D1. Similarly, a space is provided below the intermediate plate 15 by a distance D1. In FIG. 3, spaces are provided on the left and right sides of the intermediate plate 15 by a distance D2. By doing so, as described above, even when the intermediate plate 15 is rotationally displaced, the outer portion of the intermediate plate 15 is the first side plate 11 (third side plate 13) and the second side plate 12 (fourth). It does not protrude from the side plate 14). In other words, even if the intermediate plate 15 rotates, the outer shape of the intermediate plate 15 is within the outer shapes of the first side plate 11 and the second side plate 12 as a mapping in the Z-axis direction.

  If the outer portion of the intermediate plate 15 protrudes from the first side plate 11 and the second side plate 12 when the intermediate plate 15 is rotationally displaced, the outer portion of the intermediate plate 15 becomes the hollow portion 50a on the plate wall. However, in this embodiment, since the spaces of the distances D1 and D2 are provided as described above, the intermediate plate 15 may be in contact with the wall surface of the lower wall portion 50b or the wall surface of the lower cavity portion 50b. Can be rotationally displaced freely. That is, since the middle plate 15 can take a large amount of displacement, it can efficiently perform vibration control.

=== Other Embodiments ===
Although the embodiment has been described as described above, the following embodiment can be modified.

  In the above embodiment, the first viscous body 16A to the fourth viscous body 16D are used. However, at least any one of these viscous bodies may be used. Further, for example, a combination using only the first viscous body 16A and the second viscous body 16B may be used, or a combination using only the first viscous body 16A and the third viscous body 16C may be used.

  Moreover, in the said embodiment, although the long hole 15a and the round hole 15b were provided in the intermediate plate 15, both holes are good also as a long hole.

  Moreover, although a viscous body was used as an example of the damping material, these may be used as a friction plate. For example, a friction plate may be fixed to the intermediate plate 15 and the intermediate plate 15 may be rotationally displaced, so that the friction plate generates friction with the first side plate 11 and absorbs energy.

  Further, although the description has been made assuming that the plate walls 50 move relative to each other in the horizontal direction as the vibration damping structure, a vibration damping device may be adopted for the vibration damping structure that moves relative to the vertical direction.

  Moreover, in the damping device 10 in the said embodiment, although it was set as the structure which uses the 3rd side plate 13 and the 4th side plate 14, it is good also as the damping device 10 of the form which does not use the 3rd side plate 13 and the 4th side plate 14. FIG.

  The above-described embodiments are for facilitating the understanding of the present invention, and are not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and it is needless to say that the present invention includes equivalents thereof.

1 Damping structure, 10 Damping device,
11 first side plate (first member), 12 second side plate (second member),
13 Third side plate (third member), 14 Fourth side plate (fourth member),
15 Middle plate (rotating member),
16A 1st viscous body, 16B 2nd viscous body, 16C 3rd viscous body, 16D 4th viscous body,
17 Spacer, 18 Screw, 19 Sliding material,
11a 1st pin, 12a 2nd pin,
13a 1st pin receiving part, 14a 2nd pin receiving part,
15a long hole, 15b round hole 20 upper beam, 30 pillar, 31 plate wall mounting plate, 31a plate wall mounting part,
40 downward beam, 50 plate wall, 50a plate wall upper cavity, 50b plate wall lower cavity,
51 volts

Claims (9)

A first member having a first pin;
A second member having a second pin;
A rotating member having a first engaging portion that engages with the first pin, and a second engaging portion that engages with the second pin;
A damping material provided between at least one of the first member and the rotating member and between the second member and the rotating member;
When the first member and the second member relatively move in the cross direction of the predetermined direction while maintaining a relative distance in the predetermined direction, the rotating member is connected to the first member and the second member. Damping device characterized by rotating relative to. The vibration damping device according to claim 1,
The first engagement portion has a long hole that is long in the crossing direction and engages with the first pin;
The second engagement portion has a round hole in which the second pin is rotatably engaged.
A vibration damping device characterized by that. The vibration damping device according to claim 1 or 2,
The first member and the second member are arranged in a common plane, the rotating member is arranged in a plane parallel to the common plane, and both the first pin and the second pin protrude in a direction perpendicular to the common plane. Damping device, characterized by being a pin that performs. A vibration damping device according to claim 3,
When the rotating member rotates with respect to the first member and the second member, the perpendicular mapping of the outer shape of the rotating member is within the outer shape of the first member and the second member, Damping device. A vibration damping device according to any one of claims 1 to 4,
The damping member is provided outside the space between the first engaging portion and the second engaging portion. A vibration damping device according to any one of claims 1 to 5,
The damping device is provided between both the first member and the rotating member, and between the second member and the rotating member. A vibration damping device according to any one of claims 1 to 6,
A third member comprising a first pin receiving portion for rotatably supporting the first pin;
A fourth member comprising a second pin receiving portion for rotatably supporting the second pin;
A damping device comprising: a damping material provided between at least one of the third member and the rotating member and between the fourth member and the rotating member. A damping structure comprising the damping device according to any one of claims 1 to 9,
A vibration damping structure comprising: a first wall member movable in the intersecting direction together with the first member; and a second wall member movable in the intersecting direction together with the second member. A vibration damping structure according to claim 8,
A vibration damping structure comprising column members that rotatably support respective end portions of the first wall member and the second wall member.

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