JP2019207015A - Vibration control device - Google Patents

Abstract

To provide a vibration control device with a simple structure capable of absorbing oscillation in various directions.SOLUTION: A vibration control device comprises a plurality of buffer members 11 having wire lines 11a formed in a spiral manner, and a substantially prismatic weight 12 installed on the plurality of buffer members 11. The weight 12 is installed on the plurality of buffer members 11 so that the bottom surface thereof and an axial direction D of the wiring line 11a are substantially parallel, and the axial direction D intersects with the side direction of each adjacent side of the bottom surface in plan view.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vibration control device that absorbs 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. By this, the vibration of the earthquake transmitted to the building is converted into thermal energy and absorbed, thereby destroying the building. Progress can be suppressed.

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

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

  This seismic control device is roughly divided into AMD (Active Mass Damper) and TMD (Tuned Mass Damper), and AMD actively moves the built-in weight using a computer to the building. It is a device that absorbs the transmitted vibration.

  In addition, since AMD performs an active operation by an external input, it is necessary to incorporate a CPU, a sensor, an actuator, etc. in addition to a weight, a damper, and a support member as components, and the structure becomes complicated.

  On the other hand, the TMD is a device that passively absorbs the vibration transmitted to the building by incorporating a weight, a damper, a support member, and the like without requiring input from the outside.

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

  The seismic control device includes a plurality of wire rope spiral windings having a support base fixed to a building, a weight disposed on the support base, a deformation capacity by a spring constant, and an energy absorption capacity depending on the deformation. A buffer member (helical isolator) of the type. Further, 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 buffer members are provided evenly between the opposed surfaces of the inclined surfaces. The weight is supported on the support base via the buffer member.

JP 2003-42227 A

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

  For this reason, for example, the vibration control device described in Patent Document 1 has a problem in that when the weight is swayed in the diagonal direction, the sway cannot be efficiently absorbed.

  This invention is made | formed in view of the above actual conditions, and makes it a subject to provide the damping device which is a simple structure and can absorb the vibration of various directions.

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

  According to the present invention, the plurality of buffer members are arranged so that the axial direction of the wire line intersects the side direction of each adjacent side of the bottom surface of the weight in a plan view, so that the perpendicular to each side of the weight Even when a vibration occurs in a direction such as a direction or a diagonal direction, the vibration can be reliably transmitted to the weight via the plurality of buffer members. Thereby, it becomes possible to efficiently change the kinetic energy due to shaking to thermal energy.

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

  By setting it as such a structure, the stability of the weight mounted in the some buffer member improves.

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

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

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

  By adopting such a configuration, it is possible to adjust the weight of the weight by increasing or decreasing the number of stacked plate-like bodies in accordance with the use environment or the like.

  In a preferred embodiment of the present invention, the plurality of buffer members and a side wall portion standing from the periphery of the weight are provided.

  By adopting such a configuration, even when a plurality of buffer members move greatly due to the occurrence of a large roll, the plurality of buffer members collide with the side wall portion, and the kinetic energy is converted into thermal energy by the swing. Efficiency can be maintained.

  In a preferred embodiment of the present invention, a lid is provided to cover the upper side of the weight.

  By adopting such a configuration, even when multiple cushioning members move greatly due to the occurrence of large pitching, the weight collides with the lid and maintains the conversion efficiency of kinetic energy to thermal energy due to shaking. It becomes possible to make it. In addition, even if the components of the vibration control device are damaged or detached due to the occurrence of large rolls or pitches, the components can be prevented from being scattered and the surrounding people or objects may be harmed. Disappears.

  ADVANTAGE OF THE INVENTION According to this invention, it is a simple structure and can provide the damping device which can absorb the vibration of various directions.

It is a schematic perspective view which shows the damping device which concerns on embodiment of this invention. It is a figure which shows the inside of the damping device which concerns on embodiment of this invention. It is a figure which shows the inside of the damping device which concerns on embodiment of this invention. It is a figure which shows the buffer member with which the damping device which concerns on embodiment of this invention is provided, Comprising: (a) Top view, (b) It is a side view. It is a figure which shows the usage example of the damping device which concerns on embodiment of this invention.

Hereinafter, the damping device which concerns on embodiment of this invention is demonstrated using FIGS. 1-4.
The following embodiment is an example of the present invention, and the present invention is not limited to the following embodiment. Moreover, in these figures, the code | symbol 1 shall show the damping device which concerns on this embodiment.

As shown in FIGS. 1 and 2, the vibration control device 1 includes four shock-absorbing members 11 having wire wires 11 a that are spirally formed, and a substantially quadrangular prism-shaped weight placed on the four shock-absorbing members 11. 12. Further, the four buffer members 11 are mounted on a substantially rectangular plate-like base B.
In addition, the number of the buffer members 11 is not limited to this, For example, you may provide five or more.

As shown in FIG. 1, the vibration control device 1 includes a side wall portion 13 erected from the peripheral edges of four buffer members 11 and a weight 12.
More specifically, the side wall 13 is configured as a square bottomless cylindrical body as a whole by being erected in the vertical direction from the four sides of the four buffer members 11 and the weight 12.

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

  As described above, the side wall portion 13 and the lid portion 14 constitute a housing H that houses the four buffer members 11 and the weight 12.

In addition, the vibration control device 1 includes a fixing member F that contacts the outer surfaces of the side wall portion 13 and the lid portion 14. The side wall portion 13 and the lid portion 14 are fixed by a fixing member F so that the relative positions thereof do not change.
In addition, the fixing member F is being fixed to the installation surface P (refer FIG. 3) of the damping device 1 with the fixing tools V, such as a volt | bolt, which penetrates in the vertical direction from the tongue piece F1 protruding in the horizontal direction.

FIG. 2A and FIG. 2B are diagrams showing the inside of the vibration control device 1.
More specifically, FIG. 2A is a plan view of the vibration damping device 1 with the cover 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. 2 (a) and 2 (b), the weight 12 includes a plurality of weight bodies 12a having a substantially rectangular plate shape, and a weight mounting portion 12b having a substantially square plate shape on which the weight body 12a is placed. And a positioning frame portion 12c for positioning the weight body 12a, and a connector 12d for connecting the stacked weight bodies 12a.

More specifically, three weight main bodies 12a (hereinafter referred to as weight laminated bodies 12A) stacked in three are mounted on the weight mounting portion 12b along the short side direction. That is, nine weight main bodies 12a are placed on the weight placing portion 12b.
The three stacked weight bodies 12a are connected by a connecting tool 12d penetrating in the vertical direction from the approximate center thereof. One end of the connection tool 12d is screwed and fixed to a connection hole 12b1 (see FIG. 3) provided in the weight mounting portion 12b.
In addition, the number of the weight main bodies 12a is not limited thereto, and for example, the number of stacked bodies may be two or four or more. Moreover, 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 like the weight placing portion 12b. Furthermore, the number of weight laminated bodies 12A placed on the weight placing portion 12b can be freely changed by changing the sizes of the vibration control device 1 and the weight main body 12a.

Further, the weight 12 is placed on the four buffer members 11 so that the placement surface of the weight placement portion 12b and the axial direction D of the wire 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 weight stacked body 12A so as to stand upward from the weight placing portion 12b.

FIG. 3 is a view showing the inside of the vibration control device 1.
Specifically, FIG. 3 is a view when the weight main body 12a, the positioning frame portion 12c, and the coupling tool 12d are removed from the weight placement portion 12b in FIG. 2A.

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

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

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

  The buffer member 11 configured as described above has a deformation capability based on a spring constant and an energy absorption capability depending on the deformation, and buffers the load applied to the buffer member 11 by elastic radial deformation of the wire 11a. Can be made. Moreover, the buffer member 11 can change a buffer characteristic freely by changing the diameter, length, the number of turns, etc. of the wire 11a.

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

For example, as shown to Fig.5 (a), in the case of the detached house H1, it can install in the attic R1. Moreover, as shown in FIG.5 (b), in the case of the apartment H2, it can install in rooftop R2.
Note that the installation location is not limited to this, and a detached house with a roof can be installed on the roof, and even a condominium can be installed indoors. Moreover, the number of the vibration control apparatuses 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 11a of the buffer member 11 is 45 degrees in the plan view and the side direction of each adjacent side of the weight mounting portion 12b. By crossing 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 mounting portion 12b, the swing can be reliably performed via the four buffer members 11. It can be transmitted to the weight 12. Thereby, it becomes possible to efficiently change the kinetic energy due to shaking to thermal energy.

  Moreover, the stability of the weight 12 mounted on the four buffer members 11 is improved by arranging the four buffer members 11 at the respective corners of the weight mounting portion 12b.

  Further, the weight 12 is formed by laminating a plurality of plate-like weight bodies 12a, so that the number of weight bodies 12a to be laminated is increased or decreased according to the installation environment and the weight 12 is adjusted. Is possible.

  Further, by providing the four buffer members 11 and the side wall portion 13 erected from the periphery of the weight 12, even if the four buffer members 11 move greatly due to the occurrence of large rolls, the four buffer members 11 can be made to collide with the side wall portion, 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 side 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 exercises due to shaking. It becomes possible to maintain the conversion efficiency of energy into heat energy. Even if the components of the vibration control device 1 are damaged or detached due to the occurrence of large rolls or pitches, the components can be prevented from scattering, and there is a risk of harming surrounding people and things. Disappear.

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

1 Damping device 11 Buffer member 11a Wire wire 11b Retainer 11b1 Plate body 11b2 Clamping bolt 11b3 Mounting hole D Axial direction 12 Weight 12a Weight body 12A Weight stacked body 12b Weight mounting portion 12b1 Connection hole 12c Positioning frame portion 12d Connection tool 13 Side wall part 14 Cover part B Base F Fixing member F1 Tongue piece V Fixing tool P Installation surface H1 Detached house R1 Attic H2 Mansion R2 Rooftop

Claims (6)

A plurality of buffer members having wire wires spirally formed, and a substantially prismatic weight placed on the plurality of buffer members,
The weight is placed on the plurality of buffer members such that the bottom surface thereof and the axial direction of the wire line are substantially parallel,
The vibration control device according to claim 1, wherein the axial direction intersects each side direction of the adjacent side of the bottom surface in a plan view.   The vibration control device according to claim 1, wherein the plurality of buffer 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 with a side direction of each adjacent side of the bottom surface at an angle of 45 degrees in a plan view. Damping device.   The vibration control device according to claim 1, wherein the weight is formed by stacking a plurality of plate-like bodies.   5. The vibration control device according to claim 1, further comprising a side wall portion erected from a peripheral edge of the plurality of buffer members and the weight. 6. The seismic control device according to claim 1, further comprising a lid that covers an upper portion of the weight.