JP6651149B2 - Damping device - Google Patents

Description

  The present invention relates to a vibration damping device that absorbs a shaking of an earthquake transmitted to a building.

  Seismic control is a construction method that incorporates specific members, such as weights and dampers, into a building.This converts the shaking of the earthquake transmitted to the building into thermal energy and absorbs it, thereby damaging the building. It is possible to suppress the progress.

  Conventionally, this construction method is generally performed using a member called a bracing, which is obliquely inserted between columns, inside a frame of a building.

  In recent years, with the rise of buildings, many technologies for installing a vibration control device on the top of the building have been adopted.

  This vibration control device is broadly divided into an AMD (Active Mass Damper) and a TMD (Tuned Mass Damper). The AMD operates a built-in weight actively by using a computer, and is used for building. It is a device that absorbs transmitted vibration.

  In addition, since the AMD performs an active operation based on an external input, it is necessary to incorporate a CPU, a sensor, an actuator, and the like as constituent members in addition to a weight, a damper, and a supporting member, and the structure is complicated.

  On the other hand, the TMD is a device that does not require external input, but merely incorporates a weight, a damper, a support member, and the like, and passively absorbs the vibration transmitted to the building.

  For example, Patent Literature 1 describes a vibration damping device (TMD) that can be compactly designed with a small number of components and can be easily manufactured and attached to a building.

  This vibration damping device includes a support fixed to a building, a weight placed on the support, and a plurality of wire rope spiral windings having a deformation capacity based on a spring constant and an energy absorption capacity depending on the deformation. And a shock-absorbing member (helical isolator). In addition, the support base and the weight are inclined at an angle of 45 ° with respect to the horizontal and are provided with inclined surfaces facing each other, and a plurality of cushioning members are provided evenly between the opposed inclined surfaces. The weight is supported on the support base via the buffer member.

JP-A-2003-42227

  However, the vibration damping device described in Patent Literature 1 has a configuration in which buffer members are provided one by one in parallel along four sides of a substantially square weight in plan view.

  For this reason, for example, in the case of the vibration control device described in Patent Literature 1, there is a problem in that when the weight swings in a diagonal direction, the swing cannot be efficiently absorbed.

  The present invention has been made in view of the above situation, and has as its object to provide a vibration damping device having a simple structure and capable of absorbing shaking in various directions.

In order to solve the above problems, the present invention includes a plurality of buffer members having a wire wire spirally formed and a substantially prismatic weight mounted on the plurality of buffer members,
The weight is placed on the plurality of buffer members so that the bottom surface thereof and the axial direction of the wire line are substantially parallel to each other,
The axial direction intersects a side direction of each adjacent side of the bottom surface in a plan view.

  According to the present invention, the plurality of cushioning members are arranged so that the axial direction of the wire line intersects in a plan view with each side direction of the adjacent side of the bottom surface of the weight, so that the plurality of buffer members are perpendicular to each side of the weight. Even if a swing occurs in a direction such as a direction or a diagonal direction, the swing can be reliably transmitted to the weight via the plurality of buffer members. This makes it possible to efficiently change kinetic energy due to shaking into heat energy.

  In a preferred aspect of the present invention, the plurality of cushioning members are arranged at each corner of the bottom surface.

  With such a configuration, the stability of the weight placed on the plurality of buffer members is improved.

  In a preferred embodiment of the present invention, the weight has a substantially quadrangular prism shape, and the axial direction intersects a side direction of each of adjacent sides of the bottom surface at an angle of 45 degrees in plan view.

  With such a configuration, it is possible to absorb shaking in various directions with a small number of components, and the manufacturability of the vibration damping device is improved.

  In a preferred embodiment of the present invention, the weight is formed by stacking a plurality of plate-like bodies.

  With such a configuration, it is possible to increase or decrease the number of laminated plate-like bodies and adjust the weight of the weight according to the use environment or the like.

  In a preferred embodiment of the present invention, the fuel cell system further includes a plurality of buffer members and a side wall that stands upright from the periphery of the weight.

  With such a configuration, even when a plurality of cushioning members move greatly due to the occurrence of a large roll, the plurality of cushioning members collide with the side wall portion, and the kinetic energy due to the shaking is converted into thermal energy. It is possible to maintain efficiency.

  In a preferred embodiment of the present invention, a lid is provided for covering the upper part of the weight.

  With such a configuration, even when a plurality of cushioning members move significantly due to the occurrence of large pitching, the weight collides with the lid, and the conversion efficiency of kinetic energy to thermal energy due to the shaking is maintained. It is possible to do. In addition, even if the components of the damping device are damaged or detached due to the occurrence of large rolls or pitches, the components can be prevented from scattering and may cause harm to nearby people and objects. Disappears.

  According to the present invention, it is possible to provide a vibration damping device having a simple structure and capable of absorbing vibrations in various directions.

It is an outline perspective view showing the vibration control device concerning an embodiment of the present invention. It is a figure showing the inside of the vibration control device concerning the embodiment of the present invention. It is a figure showing the inside of the vibration control device concerning the embodiment of the present invention. It is a figure which shows the buffer member with which the vibration control device which concerns on embodiment of this invention is provided, (a) is a top view, (b) is a side view. It is a figure showing an example of use of a vibration control device concerning an embodiment of the present invention.

Hereinafter, a vibration damping device according to an embodiment of the present invention will be described with reference to FIGS.
The embodiment described below is an example of the present invention, and the present invention is not limited to the following embodiment. In these figures, reference numeral 1 indicates a vibration control device according to the present embodiment.

As shown in FIGS. 1 and 2, the vibration damping device 1 includes four cushioning members 11 having a wire wire 11 a formed in a spiral shape, and a substantially quadrangular prism-shaped weight placed on the four cushioning members 11. And 12. The four cushioning members 11 are mounted on a base B having a substantially rectangular plate shape.
In addition, the number of the buffer members 11 is not limited to this, and for example, five or more may be provided.

As shown in FIG. 1, the vibration damping device 1 includes four cushioning members 11 and a side wall portion 13 erected from the periphery of the weight 12.
More specifically, the side wall portion 13 is vertically erected from four sides of the four cushioning members 11 and the weight 12, and thus is configured as a rectangular bottomless cylindrical body as a whole.

  In addition, the vibration damping device 1 includes a lid portion 14 that is mounted on the upper portion of the side wall portion 13 and that is configured as a rectangular bottomed cylindrical body that covers the upper portion of the weight 12.

  As described above, the housing H that houses the four cushioning members 11 and the weight 12 is configured by the side wall 13 and the lid 14.

In addition, the vibration damping device 1 includes a fixing member F that comes into contact with the outer surfaces of the side wall 13 and the lid 14. The side wall 13 and the lid 14 are fixed by a fixing member F so that their relative positions do not change.
The fixing member F is fixed to the installation surface P (see FIG. 3) of the vibration damping device 1 by a fixing tool V such as a bolt penetrating in a vertical direction from a tongue piece F1 protruding in the horizontal direction.

2A and 2B are views showing the inside of the vibration damping device 1. FIG.
More specifically, FIG. 2A is a plan view of the vibration damping device 1 with the lid 14 and the fixing member F removed, and FIG. 2B is a cross-sectional view taken along the line AA ′ in FIG.

  As shown in FIGS. 2A and 2B, the weight 12 includes a plurality of substantially rectangular plate-shaped weight main bodies 12a, and a substantially square plate-shaped weight mounting portion 12b on which the weight main body 12a is mounted. And a positioning frame 12c for positioning the weight main body 12a, and a connecting tool 12d for connecting the stacked weight main bodies 12a.

More specifically, three stacked weight bodies 12a (hereinafter referred to as weight stacked bodies 12A) are mounted on the weight mounting portion 12b along the short side direction. That is, nine weight bodies 12a are mounted on the weight mounting portion 12b.
The three stacked weight bodies 12a are connected by a connecting tool 12d that vertically penetrates from substantially the center thereof. One end of the connecting tool 12d is screwed into and fixed to a connecting hole 12b1 (see FIG. 3) provided in the weight placing portion 12b.
Note that the number of the weight main bodies 12a is not limited to this, and for example, the number of stacked main bodies 12a may be two or four or more. Further, the shape of the weight main body 12a is not limited to a substantially rectangular plate shape, and may be, for example, a substantially square plate shape similarly to the weight placing portion 12b. Further, by changing the size of the vibration damping device 1 and the weight main body 12a, the number of the weight laminated bodies 12A mounted on the weight mounting portion 12b can be freely changed.

The weight 12 is mounted on the four buffer members 11 such that the mounting surface of the weight mounting portion 12b and the axial direction D of the wire 11a are substantially parallel.
Further, the positioning frame portion 12c is provided between the four corners of the weight placing portion 12b and each of the weight laminated bodies 12A so as to stand up from the weight placing portion 12b.

FIG. 3 is a diagram showing the inside of the vibration damping device 1.
More specifically, FIG. 3 is a diagram when the weight mounting portion 12b is seen through in FIG. 2 (a) except for the weight main body 12a, the positioning frame portion 12c, and the connector 12d.

As shown in FIG. 3, the four buffer members 11 are arranged at the four corners of the weight placing portion 12b.
More specifically, the axial direction D of the wire lines 11a of the four buffer members 11 intersects the long side direction and the short side direction of the bottom surface of the weight placing portion 12b at an angle θ, and the angle θ is 45 degrees. It is.

  As shown in FIG. 4, the cushioning member 11 has a wire wire 11a that is spirally formed and a pair of elongated retainers 11b through which the wire wire 11a is inserted.

The retainer 11b is formed by laminating two plate-like members 11b1 and is provided in parallel so as to face each other, and a wire 11a is inserted between the plate-like members 11b1.
The retainer 11b has a plurality of tightening bolts 11b2 for fixing the wire 11a by tightening the plate-like body 11b1, mounting holes 11b3 formed at both ends thereof for mounting to an external device (not shown). , Are formed.

  The cushioning member 11 configured as described above has a deformation ability based on a spring constant and an energy absorption ability depending on the deformation, and absorbs a load applied to the cushioning member 11 by the elastic radial deformation of the wire 11a. Can be done. The buffer member 11 can change the buffer characteristics freely by changing the diameter, length, number of turns, and the like of the wire 11a.

  As shown in FIG. 5, the vibration damping device 1 can be used for various buildings such as a detached house H1 and an apartment H2.

For example, as shown in FIG. 5A, in the case of a detached house H1, it can be installed on the attic R1. Also, as shown in FIG. 5B, in the case of the apartment H2, it can be installed on the roof R2.
The installation place is not limited to this, and it can be installed on the roof in a detached house with a rooftop, and it can be installed indoors even in an apartment. Further, the number of vibration damping devices 1 to be installed is not limited to one, and may be two or more according to the installation environment.

  According to the present embodiment, the weight 12 has a substantially quadrangular prism shape, and the axial direction D of the wire line 11a of the cushioning member 11 is 45 ° in plan view with respect to the side direction of each adjacent side of the weight placing portion 12b. By intersecting at an angle, even if a swing occurs in a direction such as a vertical direction or a diagonal direction with respect to each side of the weight placing portion 12b, the swing is reliably performed via the four cushioning members 11. Transmission to the weight 12 is enabled. This makes it possible to efficiently change kinetic energy due to shaking into heat energy.

  In addition, the stability of the weights 12 placed on the four cushioning members 11 is improved by arranging the four cushioning members 11 at each corner of the weight placing portion 12b.

  In addition, the weight 12 is formed by stacking a plurality of plate-shaped body weight bodies 12a, so that the number of stacked body bodies 12a can be increased or decreased according to the installation environment or the like, and the weight of the weight 12 can be adjusted. Becomes possible.

  Further, by providing the four cushioning members 11 and the side wall portion 13 erected from the periphery of the weight 12, even if the four cushioning members 11 move greatly due to the occurrence of a large roll, the four cushioning members 11 are provided. 11 can be made to collide with the side wall, and the conversion efficiency of kinetic energy into thermal energy due to shaking can be maintained.

  In addition, by providing the lid portion 14 that covers the upper portion of the weight 12, even when the four buffer members 11 move greatly due to the occurrence of large pitching, the weight 12 collides with the lid portion 14, and the motion due to the shaking is performed. It is possible to maintain the conversion efficiency of energy to heat energy. Even when the components of the vibration damping device 1 are damaged or detached due to the occurrence of large rolls and pitches, the components can be prevented from being scattered, and there is a risk of causing harm to nearby people and objects. Disappears.

  Note that the shapes, dimensions, and the like of each component shown in the above embodiment are merely examples, and can be variously changed based on design requirements and the like.

DESCRIPTION OF SYMBOLS 1 Vibration control device 11 Buffer member 11a Wire wire 11b Retainer 11b1 Plate 11b2 Tightening bolt 11b3 Mounting hole D Axial direction 12 Weight 12a Weight main body 12A Weight stack 12b Weight mounting portion 12b1 Connection hole 12c Positioning frame portion 12d Connection tool 13 side wall part 14 lid part B base F fixing member F1 tongue piece V fixing tool P installation surface H1 detached house R1 attic H2 apartment R2 rooftop

Claims (8)

A plurality of shock-absorbing members having spirally-turned wire wires, a weight resting portion mounted on the plurality of shock- absorbing members, and a plurality of shock absorbing members mounted on the plurality of shock absorbing members via the weight resting portions A substantially prismatic weight, and a positioning frame portion for positioning the weight ,
The weight is constituted by a plurality of weight bodies,
The weight main body is placed adjacent to each other on the weight mounting portion so that the bottom surface thereof and the axial direction of the wire line are substantially parallel to each other,
The axial direction intersects the side direction of each of the adjacent sides of the bottom surface in plan view ,
The weight mounting portion is substantially flat,
The vibration damping device , wherein the positioning frame portion is mounted on the weight mounting portion and is interposed between the plurality of weights to separate opposing surfaces of the adjacent weights .   The vibration damping device according to claim 1, wherein the plurality of cushioning members are arranged at each corner of the bottom surface.   3. The weight according to claim 1, wherein the weight has a substantially quadrangular prism shape, and the axial direction intersects a side direction of each of adjacent sides of the bottom surface at an angle of 45 degrees in a plan view. 4. Damping device.   The vibration control device according to any one of claims 1 to 3, wherein the weight is formed by stacking a plurality of plate-like bodies.   The vibration damping device according to any one of claims 1 to 4, further comprising a side wall portion provided upright from a periphery of the plurality of buffer members and the weight. 6. The vibration damping device according to claim 5 , wherein the side wall portion is entirely configured as a bottomless cylindrical body having a substantially rectangular outer shape. 7.
The vibration damping device according to claim 5 , further comprising a lid that covers an upper part of the weight.
  A fixing member abutting on the outer surface of the side wall portion and the lid portion, and a base on which the plurality of cushioning members are mounted,
  The fixing member has a tongue protruding in a substantially vertical direction from a standing direction of the side wall portion,
  The vibration damping device according to claim 7, wherein the tongue piece is fixed to an arrangement surface on which the base is arranged.