Vibration suppression device and ceiling structure body of building

Abstract

To provide a vibration suppression device capable of easily attaching a weight support body in correspondence with a dimension in a frame of a frame-shaped structure member, and a ceiling structure body of a building.SOLUTION: A vibration suppression device 11 is attached to a partition structure of a building. The partition structure of the building includes a plate-shaped structure member, and a frame-shaped structure member to which the plate-shaped structure member is attached. The vibration suppression device 11 includes a weight member 12, and a weight support body 13 for supporting the weight member 12. The weight support body 13 includes a weight support member 31 having a longitudinal direction, a fixing member 32 arranged on both end sides in the longitudinal direction of the weight support member 31, and an oscillation shaft 33 pivotally supporting the fixing member 32 to the weight support member 31 in a swingable manner. The fixing member 32 has a fixed portion 41 fixed to the frame-shaped structure member. The fixed portion 41 includes a wall P having a confronting wall surface S3 confronting an inner peripheral surface of the frame-shaped structure member. The fixing member 32 is swingable around the oscillation shaft 33 along a parallel surface parallel to the plate-shaped structure member.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a vibration suppression device and a ceiling structure of a building.

Background Art

[0002] As described in Patent Document 1, a floor structure including a metal joist connection member with a damper attached is known. Both ends of the metal joist connection member are fixed to a pair of floor joists arranged opposite to each other.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When suppressing the vibration of a building by a weight member, it is effective to support the weight member by a weight support on a frame-shaped structural member. To support the weight member on the frame-shaped structural member in this way, it is necessary to attach both ends of the weight support to the frame-shaped structural member. At this time, the dimensions inside the frame of the frame-shaped structural member have tolerances even in buildings with the same design. There are also buildings with different designs in which the dimensions inside the frame of the frame-shaped structural member are different. A weight support that can be easily attached to such frame-shaped structural members with different internal dimensions is desired.

[0005] Therefore, an object of the present invention is to provide a vibration suppression device and a ceiling structure of a building that can be easily attached by adapting a weight support to the dimensions inside the frame of a frame-shaped structural member.

Means for Solving the Problems

[0006] Each aspect of the vibration suppression device and the ceiling structure of a building for solving the above problems will be described. The vibration suppression device according to Aspect 1 is a vibration suppression device attached to a partition structure of a building including a plate-shaped structural member and a frame-shaped structural member to which the plate-shaped structural member is attached, and includes a weight member and a weight support body that supports the weight member. The weight support body includes a weight support member having a longitudinal direction, fixing members disposed on both end sides in the longitudinal direction of the weight support member, and a swing shaft that pivotally supports the fixing members on the weight support member in a swingable manner. The fixing member has a fixing portion fixed to the frame-shaped structural member. The fixing portion includes a wall portion having an opposing wall surface facing the inner peripheral surface of the frame-shaped structural member. The fixing member is swingable along a parallel plane parallel to the plate-shaped structural member about the swing shaft.

[0007] According to this configuration, by swinging the fixing member as described above, the orientation of the opposing wall surface of the wall portion can be adjusted to be parallel to the inner peripheral surface of the frame-shaped structural member. In the vibration suppression device according to Aspect 2, in Aspect 1, the wall portion may be fixed to the frame-shaped structural member with a fastening member. According to this configuration, the wall portion of the fixing portion can be securely fixed to the frame-shaped structural member.

[0008] In the vibration suppression device according to Aspect 3, in Aspect 1 or Aspect 2, the fixing member may have a positioning portion that can contact a side surface between the inner peripheral surface and the outer peripheral surface of the frame-shaped structural member. According to this configuration, the fixing member can be positioned with respect to the frame-shaped structural member by the positioning portion, and the wall portion, which is the fixing portion of the fixing member, can be fixed to the frame-shaped structural member. Thereby, the work of attaching the vibration suppression device to the frame-shaped structural member can be easily performed.

[0009] In the vibration suppression device according to Aspect 4, in any one of Aspects 1 to 3, the swing shaft may be attached by a locking portion formed by plastic deformation. According to this configuration, the fastening force for fastening the weight support member and the fixing member with the swing shaft can be easily improved.

[0010] The ceiling structure of Mode 5 is a ceiling structure of a building, comprising a ceiling structure of the building and a vibration suppression device attached to the ceiling structure. The ceiling structure includes a ceiling board and a frame-shaped structural member to which the ceiling board is attached. The frame-shaped structural member has a field edge. The vibration suppression device includes a weight member and a weight support body that supports the weight member. The weight support body includes a weight support member having a longitudinal direction, fixing members disposed on both ends of the weight support member in the longitudinal direction, and a swing shaft that pivotally supports the fixing members on the weight support member. The fixing member has a fixing portion fixed to the field edge. The fixing portion includes a wall portion having an opposing wall surface facing the inner peripheral surface of the frame-shaped structural member. The fixing member is swingable along a plane parallel to the ceiling board about the swing shaft.

Effect of the Invention

[0011] The present invention exhibits the effect that the weight support body can be easily attached corresponding to the dimensions within the frame of the frame-shaped structural member.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0013] Hereinafter, an embodiment of a vibration suppression device and a ceiling structure of a building will be described with reference to the drawings. As shown in FIGS. 1 to 3, the vibration suppression device 11 is used for the purpose of suppressing the vibration of the partition structure 51 of the building by being attached to the partition structure 51 of the building.

[0014] <Partition structure 51 of the building> The partition structure 51 of the building includes a plate-shaped structural member 52 and a frame-shaped structural member 53 to which the plate-shaped structural member 52 is attached. The frame-shaped structural member 53 includes a plurality of rod-shaped structural members 53a arranged spaced apart so as to extend parallel to each other, and a plurality of support structural members 53b that support the plurality of rod-shaped structural members 53a. The plurality of support structural members 53b are arranged spaced apart so as to extend parallel to each other. The ends of the rod-shaped structural members 53a are fixed to the support structural members 53b. The support structural member 53b has a longitudinal direction extending along a direction intersecting the longitudinal direction of the rod-shaped structural member 53a in a plan view. The support structural member 53b of the present embodiment is arranged so as to extend along a direction orthogonal to the extending direction of the rod-shaped structural member 53a.

[0015] In the XYZ axes in the drawings, the X axis represents the horizontal direction along the extending direction of the rod-shaped structural member 53a, the Y axis represents the horizontal direction along the extending direction of the support structural member 53b and orthogonal to the X axis, and the Z axis represents the upward direction orthogonal to the XY plane.

[0016] The partition structure 51 of the building may include three or more rod-shaped structural members 53a. The support structural member 53b of the partition structure 51 of the building may include three or more support structural members 53b.

[0017] In this embodiment, as an example of the partition structure 51 of the building, the ceiling structure of the building is shown. The ceiling structure of the building includes the ceiling structure of the building and the vibration suppression device 11 attached to this ceiling structure. The plate-like structure member 52 in the ceiling structure of the building is a ceiling board. In the ceiling structure of the building, the rod-like structure member 53a of the frame-like structure member 53 is, for example, a soffit edge. Also, in the ceiling structure of the building, the support structure member 53b of the frame-like structure member 53 is, for example, a soffit support. The support structure member 53b is suspended from the building body, for example, by being attached to a suspension member attached to the building body.

[0018] Examples of the plate-like structure member 52 include a gypsum board, a calcium silicate board, a wood-based board, and the like. Examples of the materials of the rod-like structure member 53a and the support structure member 53b include metal-based materials such as steel materials and wood-based materials.

[0019] <Vibration suppression device 11> As shown in FIGS. 3 to 5, the vibration suppression device 11 includes a weight member 12 and a weight support 13 that supports the weight member 12.

[0020] The weight support 13 includes a weight support member 31 having a longitudinal direction, a fixing member 32, and a swing shaft 33. The fixing member 32 has a first fixing member 32a and a second fixing member 32b disposed on both end sides in the longitudinal direction of the weight support member 31.

[0021] (Weight support member 31) As shown in FIGS. 3 and 4, the weight support member 31 has a first connection portion 31a, a second connection portion 31b, and an intermediate portion 31c. The first connection portion 31a is provided so as to connect the intermediate portion 31c and the first fixing member 32a. The second connection portion 31b is provided so as to connect the intermediate portion 31c and the second fixing member 32b. The intermediate portion 31c is disposed between the weight member 12 and the plate-like structure member 52.

[0022] The intermediate portion 31c has an intermediate opposing surface S1 facing the weight member 12 and an intermediate non-opposing surface S2 on the side opposite to the intermediate opposing surface S1. The intermediate non-opposing surface S2 has a contact portion C that contacts the plate-like structural member 52. The contact portion C is a portion that preferentially contacts the plate-like structural member 52 compared to other portions of the weight support member 31 other than the contact portion C.

[0023] The intermediate portion 31c has an intermediate main body portion M1 and a soft portion M2 made of a material softer than the material constituting the intermediate main body portion M1. The soft portion M2 is more easily compressed and deformed than the intermediate main body portion M1. The contact portion C is constituted by the soft portion M2.

[0024] The intermediate main body portion M1 is made of, for example, a metal material. Examples of the metal material include steel and stainless steel. The intermediate main body portion M1, the first connecting portion 31a, and the second connecting portion 31b are integrally formed from the same material. In the weight support member 31 of the present embodiment, portions other than the soft portion M2, that is, the first connecting portion 31a, the second connecting portion 31b, and the intermediate main body portion M1 are integrally formed from the same material.

[0025] Examples of the material constituting the soft portion M2 include resin-based materials and rubber-based materials. Examples of the resin-based materials include styrene-based resins, olefin-based resins, ester-based resins, urethane-based resins, amide-based resins, and vinyl chloride-based resins. Examples of the rubber-based materials include natural rubber, polyisoprene rubber, styrene-butadiene rubber, polybutadiene rubber, nitrile rubber, butyl rubber, ethylene propylene rubber, urethane rubber, silicone rubber, various elastomers, and gels. The material constituting the soft portion M2 can also contain fillers, plasticizers, etc. as necessary. The soft portion M2 can be constituted by, for example, a sheet material.

[0026] The contact portion C preferably has adhesiveness or adhesivity. For example, by forming the soft portion M2 from a butyl rubber having adhesiveness or a urethane gel having self - adhesiveness, adhesiveness can be imparted to the contact portion C. Note that the soft portion M2 can also be constituted by a laminate including a first soft layer having non - adhesiveness or non - adhesivity and a second soft layer having adhesiveness or adhesivity. For example, the soft portion M2 may be constituted by a laminate in which the second soft layer, the first soft layer, and the second soft layer are laminated in this order.

[0027] The weight support member 31 of the present embodiment has a bent portion B. The bent portion B is formed so as to bulge toward the plate - like structural member 52. More specifically, the bent portion B is formed in the intermediate portion 31c. The bent portion B has a pair of side walls extending toward the plate - like structural member 52 and a tip wall connecting the tip portions of the pair of side walls. The bent portion B has a concave shape formed by the pair of side walls and the tip wall. The tip wall of the bent portion B has the intermediate main body portion M1 and the soft portion M2. That is, the tip wall of the bent portion B has the contact portion C. The weight member 12 is disposed at a distance from the tip wall of the bent portion B.

[0028] (Fixing member 32) The first fixing member 32a and the second fixing member 32b have a common structure. Therefore, the structure common to the first fixing member 32a and the second fixing member 32b will be described as the fixing member 32.

[0029] As shown in FIGS. 4 to 6, the fixing member 32 has a fixing portion 41 fixed to the frame - like structural member 53. The fixing portion 41 includes a wall portion P having an opposing wall surface S3 facing the inner peripheral surface of the frame - like structural member 53. The wall portion P is fixed to the frame - like structural member 53 by a fastening member 61 such as a screw. The shape of the wall portion P is a shape having a longitudinal direction along the circumferential direction of the frame - like structural member 53. The shape of the wall portion P may be a shape having no longitudinal direction or a shape having a short - hand direction along the circumferential direction of the frame - like structural member 53.

[0030] The fixing portion 41 of the first fixing member 32a and the fixing portion 41 of the second fixing member 32b in this embodiment are respectively fixed to a pair of rod-shaped structural members 53a that are arranged opposite to each other in the frame-shaped structural member 53. In the ceiling structure of a building, the fixing portion 41 of the first fixing member 32a and the fixing portion 41 of the second fixing member 32b can be respectively fixed to a pair of purlins that are arranged opposite to each other.

[0031] The fixing member 32 has a mounting portion 42 that is pivotally supported by the weight support member 31. The mounting portion 42 is provided so as to be orthogonal to the wall portion P and extend along the weight support member 31. Further, the mounting portion 42 is arranged so as to overlap both ends of the weight support member 31.

[0032] The fixing member 32 has a positioning portion 43 that can abut on the side surface between the inner peripheral surface and the outer peripheral surface of the frame-shaped structural member 53. In the ceiling structure of a building, the side surface of the frame-shaped structural member 53 has an upper surface that is the surface when viewed from above the frame-shaped structural member 53 and a lower surface that is the surface when viewed from below the frame-shaped structural member 53. The positioning portion 43 of this embodiment is configured to be able to abut on the lower surface of the frame-shaped structural member 53. Specifically described, the positioning portion 43 is provided so as to be orthogonal to the wall portion P and extend along the lower surface of the frame-shaped structural member 53 from the wall portion P. The shape of the positioning portion 43 is a shape having a longitudinal direction that extends along the circumferential direction of the frame-shaped structural member 53. The shape of the positioning portion 43 may be a shape that does not have a longitudinal direction, or may be a shape having a short transverse direction that extends along the circumferential direction of the frame-shaped structural member 53.

[0033] Examples of the material of the fixing member 32 include metal materials. The wall portion P, the mounting portion 42, and the positioning portion 43, which are the fixing portion 41 of the fixing member 32 in this embodiment, can be easily formed by bending a metal plate.

[0034] (Swing shaft 33) As shown in FIG. 6, the swing shaft 33 pivotally supports the fixed member 32 on the weight support member 31 in a swingable manner. The swing shaft 33 is attached by a locking portion 33b formed by plastic deformation. Specifically, the end of the weight support member 31 and the attachment portion 42 of the fixed member 32 have through holes. The swing shaft 33 has a shaft portion 33a and a pair of locking portions 33b provided on the shaft portion 33a. At least one of the pair of locking portions 33b is formed by plastic deformation.

[0035] As a shaft member for forming the swing shaft 33, for example, a rivet having a head at one end of the shaft portion 33a can be used. By caulking the end opposite to the head of such a rivet using a caulking machine, the swing shaft 33 can be attached. Since the swing shaft 33 does not have a screwing structure such as a screw, it is possible to avoid a decrease in the fastening force of the swing shaft 33 caused by loosening of the screwing structure.

[0036] The fixed member 32 pivotally supported on the weight support member 31 by the swing shaft 33 described above can swing along a plane parallel to the plate-like structural member 52 with the swing shaft 33 as the center. By the swing of the fixed member 32, the angle of the opposing wall surface S3 of the wall portion P, which is the fixed portion 41, can be changed with respect to the longitudinal direction of the weight support member 31.

[0037] (Weight member 12) As shown in FIGS. 3 to 5, the weight member 12 can be attached to the weight support member 31 using a fastening member such as a screw. The weight member 12 can also be attached to the weight support member 31 using an adhesive portion, a welded portion, or the like.

[0038] In a plan view with the intermediate opposing surface S1 of the intermediate portion 31c of the weight member 12 facing upward (in the Z-axis direction), the weight member 12 has a shape that protrudes from the intermediate opposing surface S1 of the intermediate portion 31c in a direction intersecting the longitudinal direction of the weight support member 31. In other words, in the above plan view, the maximum value of the width dimension of the weight member 12 is larger than the maximum value of the width dimension of the weight support member 31. The width dimension referred to here is the dimension in the direction orthogonal to the longitudinal direction of the weight support member 31 in the above plan view, that is, the dimension along the X-axis.

[0039] The shape of the weight member 12 is, for example, a polyhedron having a plurality of outer surfaces. In this embodiment, the shape of the weight member 12 is a hexahedron. Examples of the material of the weight member 12 include metal materials such as steel.

[0040] From the viewpoint of enhancing the function of suppressing vibration, the mass W1 of the weight support 13 is preferably smaller than the mass W2 of the weight member 12. More preferably, the mass W1 of the weight support 13 and the mass W2 of the weight member 12 satisfy the relationship of W1 ≦ 0.5 × W2, and even more preferably, satisfy the relationship of W1 ≦ 0.3 × W2.

[0041] Preferably, the mass W1 of the weight support 13 and the mass W2 of the weight member 12 satisfy the relationship of 0.01 × W2 ≦ W1, and more preferably, satisfy the relationship of 0.025 × W2 ≦ W1. The mass W2 of the weight member 12 is preferably in the range of, for example, 1 kg or more and 4 kg or less, and more preferably in the range of 2 kg or more and 3 kg or less. In this case, for example, the load applied to the frame-shaped structural member 53 can be suppressed, and the effect of suppressing the vibration of the plate-shaped structural member 52 can be enhanced.

[0042] <The mounting method of the vibration suppression device 11 and the usage state of the vibration suppression device 11> Next, an example of a mounting method for mounting the vibration suppression device 11 to the partition structure 51 of a building will be described. To mount the vibration suppression device 11 to the partition structure 51 of a building, first, the intermediate portion 31c of the weight support member 31 is formed. That is, by attaching a sheet material that becomes the soft portion M2 to the intermediate main body portion M1, the intermediate portion 31c in which the intermediate main body portion M1 and the soft portion M2 are laminated is formed. Next, the fixing portion 41 in the fixing member 32 of the weight support 13 is fixed to the frame-shaped structural member 53. At this time, by swinging the fixing member 32 with respect to the weight support member 31, the orientation of the opposing wall surface S3 of the wall portion P of the fixing portion 41 can be adjusted to be parallel to the inner peripheral surface of the frame-shaped structural member 53.

[0043] Figs. 7(a) to 7(c) show an example in which the intervals of the rod-shaped structural members 53a in the partition structure 51 of the building are different. The rod-shaped structural members 53a in Fig. 7(a), the rod-shaped structural members 53a in Fig. 7(b), and the rod-shaped structural members 53a in Fig. 7(c) are arranged at intervals of interval dimensions D1, D2, and D3, respectively. The interval dimensions D1, D2, and D3 satisfy the magnitude relationship of D1 > D2 > D3. In the cases of the interval dimension D2 and the interval dimension D3, the weight support member 31 is inclined with respect to the rod-shaped structural member 53a, and the weight support member 31 is arranged between the rod-shaped structural members 53a. At this time, by swinging the fixing member 32 with respect to the weight support member 31, as shown in Fig. 6, the orientation of the opposing wall surface S3 of the wall portion P of the fixing portion 41 can be adjusted to be parallel to the inner peripheral surface of the frame-shaped structural member 53. Further, the fixing member 32 can be positioned on the frame-shaped structural member 53 by the positioning portion 43, and the wall portion P, which is the fixing portion 41 of the fixing member 32, can be fixed to the frame-shaped structural member 53.

[0044] Subsequently, after attaching the weight member 12 to the weight support member 31, by fixing the plate-shaped structural member 52 to the rod-shaped structural member 53a of the frame-shaped structural member 53, a partition structure body, that is, a ceiling structure body, to which the vibration suppression device 11 is attached to the partition structure 51 of the building is obtained.

[0045] The attachment method for attaching the vibration suppression device 11 to the partition structure 51 of the building is not limited to the above method. For example, after attaching the weight member 12 to the weight support member 31, the fixing portion 41 of the weight support 13 may be fixed to the frame-shaped structural member 53.

[0046] Next, the usage state of the vibration suppression device 11 will be described. The vibration of the frame-shaped structural member 53 in the partition structure 51 of the building is transmitted to the weight support member 31 via the fixing member 32. The vibration of the plate-shaped structural member 52 in the partition structure 51 of the building is directly transmitted to the intermediate portion 31c by the contact portion C. The weight support member 31 and the weight member 12 attenuate the vibration transmitted from the partition structure 51 of the building to the weight support member 31. Thereby, the vibration of the partition structure 51 of the building can be suppressed.

[0047] <Actions and Effects of this Embodiment> Next, the actions and effects of this embodiment will be described. (1) The vibration suppression device 11 attached to the partition structure 51 of the building includes a weight member 12 and a weight support 13 that supports the weight member 12. The weight support 13 includes a weight support member 31 having a longitudinal direction, fixing members 32 disposed on both end sides in the longitudinal direction of the weight support member 31, and a swing shaft 33 that pivotally supports the fixing members 32 on the weight support member 31 in a swingable manner. The fixing member 32 has a fixing portion 41 that is fixed to the frame-shaped structural member 53. The fixing portion 41 includes a wall portion P having an opposing wall surface S3 facing the inner peripheral surface of the frame-shaped structural member 53. The fixing member 32 is swingable along a parallel plane parallel to the plate-shaped structural member 52 about the swing shaft 33. According to this configuration, by swinging the fixing member 32 as described above, the orientation of the opposing wall surface S3 of the wall portion P can be adjusted to be parallel to the inner peripheral surface of the frame-shaped structural member 53. Thereby, the weight support 13 can be easily attached corresponding to the dimensions within the frame of the frame-shaped structural member 53.

[0048] (2) The wall portion P of the fixing portion 41 is fixed to the frame-shaped structural member 53 by a fastening member 61. In this case, the wall portion P of the fixing portion 41 can be securely fixed to the frame-shaped structural member 53. (3) The fixing member 32 has a positioning portion 43 that can contact the side surface between the inner peripheral surface and the outer peripheral surface of the frame-shaped structural member 53. In this case, the fixing member 32 can be positioned with respect to the frame-shaped structural member 53 by the positioning portion 43, and the wall portion P, which is the fixing portion 41 of the fixing member 32, can be fixed to the frame-shaped structural member 53. Thereby, the work of attaching the vibration suppression device 11 to the frame-shaped structural member 53 can be easily performed.

[0049] Also, since the positioning portion 43 can contact the side surface of the frame-shaped structural member 53, the fixing member 32 can be positioned in the thickness direction, which is the direction along the Z-axis of the frame-shaped structural member 53, without being affected by the width dimension of the side surface of the frame-shaped structural member 53.

[0050] (4) The rocking shaft 33 is attached by a locking portion 33b formed by plastic deformation. In this case, the fastening force for fastening the weight support member 31 and the fixing member 32 by the rocking shaft 33 can be easily improved.

[0051] (5) The shape of the wall portion P of the fixing portion 41 is a shape having a longitudinal direction extending along the circumferential direction of the frame-shaped structural member 53. In this case, by bringing the wall portion P into contact with the inner peripheral surface of the frame-shaped structural member 53, the fixing member 32 can be made more stable when fixing the wall portion P. Thereby, the work of attaching the vibration suppression device 11 to the frame-shaped structural member 53 can be easily performed.

[0052] (6) The shape of the positioning portion 43 of the fixing member 32 is a shape having a longitudinal direction along the circumferential direction of the frame-shaped structural member 53. In this case, by bringing the positioning portion 43 into contact with the side surface of the frame-shaped structural member 53, the fixing member 32 can be made more stable when fixing the wall portion P. Thereby, the work of attaching the vibration suppression device 11 to the frame-shaped structural member 53 can be easily performed.

[0053] (7) The weight support member 31 has an intermediate portion 31c disposed between the weight member 12 and the plate-shaped structural member 52. The intermediate portion 31c has an intermediate opposing surface S1 facing the weight member 12 and an intermediate non-opposing surface S2 on the opposite side of the intermediate opposing surface S1. The intermediate non-opposing surface S2 has a contact portion C that contacts the plate-shaped structural member 52. In this case, the vibration of the plate-shaped structural member 52 can be directly transmitted to the intermediate portion 31c by the contact portion C. The vibration transmitted to the intermediate portion 31c can be efficiently suppressed by the weight member 12 disposed facing the intermediate opposing surface S1 of the intermediate portion 31c. Therefore, the effect of suppressing the vibration of the plate-shaped structural member 52 can be easily enhanced.

[0054] (8) The intermediate portion 31c of the hammer support member 31 has an intermediate main body portion M1 and a soft portion M2 made of a material softer than the material constituting the intermediate main body portion M1. The contact portion C is constituted by the soft portion M2. In this case, for example, the flexibility of the soft portion M2 can enhance the effect of suppressing the vibration of the plate-like structural member 52.

[0055] <Modified Example> The above-described embodiment may be modified and configured as follows. The above-described embodiment and the following modified examples can be implemented in combination with each other within a technically non-conflicting range.

[0056] · The above-described swing shaft 33 is attached by a locking portion 33b formed by plastic deformation. However, for example, it can also be attached using a screwing structure such as a screw. · The above-described swing shaft 33 can also be attached by a locking portion formed by plastic deformation of at least one of the end portion of the hammer support member 31 and the attachment portion 42 of the fixing member 32, rather than the locking portion 33b formed by plastic deformation of the shaft member. For example, with respect to a through hole formed in advance in the attachment portion 42 of the fixing member 32, a swing shaft having unevenness on its outer peripheral surface is pushed in using a punching machine or the like. Thereby, by plastically deforming the through hole of the attachment portion 42, a locking portion that locks to the swing shaft is formed in the through hole. In this way, the swing shaft can be attached by a locking portion formed by plastically deforming the attachment portion 42 or the end portion of the hammer support member 31.

[0057] Also, the swing shaft 33 can be attached by a locking portion formed by plastic deformation of at least one of the end portion of the hammer support member 31 and the attachment portion 42 of the fixing member 32, and plastic deformation of the shaft member.

[0058] · The above-described wall portion P is fixed to the frame-shaped structural member 53 by the fastening member 61, but it can also be fixed to the frame-shaped structural member 53 using other fixing methods such as an adhesive or an adhesive. Also, the fastening member 61 and other fixing methods may be used in combination.

[0059] · The positioning portion 43 of the above-described fixing member 32 may be omitted. ·The positioning portion 43 of the fixing member 32 is provided so as to abut against the lower surface of the frame-shaped structural member 53, but it can also be provided so as to abut against the upper surface of the frame-shaped structural member 53. That is, the positioning portion 43 of the fixing member 32 can also be provided so as to abut against at least one of the both side surfaces of the frame-shaped structural member 53.

[0060] ·The fixing portion 41 of the fixing member 32 may include the positioning portion 43 in addition to the wall portion P. That is, the positioning portion 43 can also be fixed to the frame-shaped structural member 53. ·The shape of the weight support member 31 is plate-shaped, but it is not limited thereto. The shape of the weight support member 31 may be, for example, quadrangular prism-shaped or cylindrical. Further, the shape of the weight support member 31 may be tubular having a hollow portion extending along the longitudinal direction.

[0061] ·The weight support member 31 and the fixing member 32 may be made of the same material as each other or may be made of different materials from each other. For example, in the weight support member 31, the portion other than the soft portion M2 may be made of a wooden material and the fixing member 32 may be made of a metal material.

[0062] ·The weight support member 31 has the bent portion B, but the bent portion B of the weight support member 31 can also be omitted. ·The intermediate portion 31c of the weight support member 31 has the contact portion C that contacts the plate-shaped structural member 52, but the contact portion C can also be omitted. That is, the weight support member 31 may be attached without contacting the plate-shaped structural member 52.

[0063] ·The soft portion M2 in the intermediate portion 31c of the weight support member 31 may be omitted. That is, for example, the intermediate portion 31c can also be composed of only the intermediate main body portion M1. · The above-mentioned weight member 12 has a shape that protrudes in both directions intersecting the longitudinal direction of the weight support member 31 from the intermediate opposing surface S1 in a plan view with the intermediate opposing surface S1 of the intermediate portion 31c facing upward, but is not limited thereto. The shape of the weight member 12 can also be changed to a shape that protrudes in one direction out of the two directions intersecting the longitudinal direction of the weight support member 31 from the intermediate opposing surface S1 of the intermediate portion 31c in the above plan view. Further, the shape of the weight member 12 can also be changed to a shape that does not protrude in any direction out of the two directions intersecting the longitudinal direction of the weight support member 31 from the intermediate opposing surface S1 of the intermediate portion 31c in the above plan view.

[0064] However, from the viewpoint of enhancing the effect of suppressing vibration, the shape of the weight member 12 is preferably a shape that protrudes in both directions intersecting the longitudinal direction of the weight support member 31 from the intermediate opposing surface S1 in the above plan view. Further, the shape of the weight member 12 protruding in the above two directions is more preferably a shape that is line-symmetric with respect to the axis along the longitudinal direction of the weight support member 31 as the target axis in the above plan view.

[0065] · The shape of the weight member 12 is not limited to a polyhedron shape, and for example, it may be spherical or cylindrical. · The weight member 12 can also be arranged so as to be in contact with the tip wall of the bent portion B of the weight support member 31.

[0066] ·In the above-described embodiment, the partition structure 51 of the building is exemplified by the ceiling structure of the building. However, the partition structure 51 of the building may be the wall structure of the building. That is, the plate-like structure member 52 can be changed to a wall panel, and the frame-like structure member 53 can also be changed so that the wall panel can be attached. Specifically, the frame-like structure member in the wall structure of the building includes a pair of first rod-like structure members that are spaced apart from each other in the horizontal direction and extend vertically. The frame-like structure member also includes a pair of second rod-like structure members provided to hold the upper and lower ends of the pair of first rod-like structure members. The first rod-like structure member is, for example, a stud. The second rod-like structure member is, for example, a runner. The wall structure of the building includes, for example, a plurality of wall panels arranged so as to sandwich the frame-like structure member. The wall structure of the building includes the wall structure of the building and a vibration suppression device attached to the wall structure.

Explanation of Signs

[0067] 11…Vibration suppression device 12…Weight member 13…Weight support 31…Weight support member 31a…First connection part 31b…Second connection part 31c…Intermediate part 32…Fixing member 32a…First fixing member 32b…Second fixing member 33…Swing axis 33a…Shaft part 33b…Locking part 41…Fixing part 42…Mounting part 43…Positioning part 51…Partition structure 52…Plate-like structure member 53…Frame-like structure member 53a…Rod-like structure member 53b…Support structure member 61…Fastening member B…Bending part C…Contact part D1,D2,D3…Spacing dimension M1…Intermediate main body part M2... Soft portion P... Wall portion S1... Intermediate facing surface S2... Intermediate non-facing surface S3... Opposing wall surface

Claims

1. A vibration suppression device attached to a partition structure of a building, comprising a plate-shaped structural member and a frame-shaped structural member to which the plate-shaped structural member is attached, comprising a weight member and a weight support body that supports the weight member, wherein the weight support body includes a weight support member having a longitudinal direction, fixing members disposed on both end sides in the longitudinal direction of the weight support member, and a swing shaft that pivotally supports the fixing members on the weight support member so as to be swingable, wherein the fixing member has a fixing portion fixed to the frame-shaped structural member, the fixing portion including a wall portion having an opposing wall surface facing the inner peripheral surface of the frame-shaped structural member, and the fixing member is swingable along a parallel plane parallel to the plate-shaped structural member about the swing shaft. A vibration suppression device.

2. The vibration suppression device according to claim 1, wherein the wall portion is fixed to the frame-shaped structural member by a fastening member.

3. The vibration suppression device according to claim 1, wherein the fixing member has a positioning portion that can contact a side surface between the inner peripheral surface and the outer peripheral surface of the frame-shaped structural member.

4. The vibration suppression device according to claim 1, wherein the swing shaft is attached by a locking portion formed by plastic deformation.

5. A ceiling structure of a building, comprising a ceiling structure of a building and a vibration suppression device attached to the ceiling structure, wherein the ceiling structure includes a ceiling board and a frame-shaped structural member to which the ceiling board is attached, the frame-shaped structural member having a field edge, the vibration suppression device including a weight member and a weight support body that supports the weight member, the weight support body including a weight support member having a longitudinal direction, fixing members disposed on both end sides in the longitudinal direction of the weight support member, and a swing shaft that pivotally supports the fixing members on the weight support member so as to be swingable, wherein the fixing member has a fixing portion fixed to the field edge, the fixing portion including a wall portion having an opposing wall surface facing the inner peripheral surface of the frame-shaped structural member, and the fixing member is swingable along a parallel plane parallel to the ceiling board about the swing shaft. A ceiling structure.

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