JP2004347055A - Vibration control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration control device easily installed to fix an object of vibration control (equipment and furniture) to be installed with a clearance between a bottom surface thereof and a floor without damaging the floor such as bores for fitting holes for fixtures. <P>SOLUTION: This vibration control device is provided with a fixing elastic part 1 for fixing the vibration control device itself to the object of vibration control with adhesive force of itself or friction force between contact surfaces, a vibration attenuating part 3 fixed to the fixing elastic part 1 to attenuate vibration of the object of the vibration control transmitted through the fixing elastic part 1, a fixing elastic piece 6 for fixing the vibration control device itself to the floor by adhesive force itself or friction force between contact surfaces, an adjusting part fixed to the fixing elastic piece 6 to assist movement of the fixing elastic part 1 and the vibration attenuating part 3 to adjust a distance between the fixing elastic part 1 and the fixing elastic piece 6, and a bag 7 provided inside the adjusting part 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vibration control device suitable for use in preventing a device or furniture from falling or moving due to an earthquake.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a countermeasure against falling or moving of a device or the like due to an earthquake, fixing the device to a wall, a floor, or the like using a fixing metal has been performed. In the case of a device with a caster and a caster lock mechanism, the caster is locked so that the device does not move.
[0003]
Also, a seismic support used to prevent falls of furniture and the like is known (for example, see Patent Document 1). In this seismic support, a shock-absorbing material having adhesive strength and viscoelasticity is fitted into a strong frame, and the thickness of the shock-absorbing material is made larger than the axial dimension of the frame. It has a configuration. When the seismic support is interposed, for example, between the furniture and the floor, the upper and lower surfaces of the shock absorber contact the furniture and the floor and are fixed thereto. In addition, the weight of the furniture compresses the shock absorbing material and attempts to spread it in the horizontal direction, but this is prevented by the frame, and a predetermined contact area is to be maintained.
[0004]
[Patent Document 1]
JP-A-9-313281
[Problems to be solved by the invention]
However, in the above-described conventional measures, there is a problem that it is necessary to make a mounting hole for the fixing bracket, and a floor or the like on which the fixing bracket is mounted must be damaged. Also, it may be difficult for ordinary people to attach the fixing bracket. In particular, when the device has a leg and the bottom surface of the device is installed away from the floor, it is difficult to attach the fixing bracket.
[0006]
Further, regarding the caster and the device with the caster lock mechanism, even if the caster is locked, the wheel of the caster may slip due to the shaking of the earthquake, and the device may move.
[0007]
In the above-described seismic support, the object to be controlled, such as equipment or furniture, is placed on the seismic support placed on the floor, and the seismic support is sandwiched between the object and the floor. Since it is presumed that it is used after being used, it has no effect on vibration control objects that are installed with the bottom surface separated from the floor.
[0008]
For this reason, as a countermeasure against falling or moving of the vibration control target (equipment, furniture, etc.) with the bottom surface separated from the floor, a mounting hole for the fixing bracket is opened to fix the vibration control target. There is a demand for a vibration control device that can be easily installed without damaging the floor and the like.
[0009]
The present invention has been made in view of such circumstances, and an object of the present invention is to fix an attachment hole of a fixing bracket to fix an object (equipment, furniture, etc.) to be installed with a bottom surface separated from a floor. An object of the present invention is to provide a vibration control device that can be easily installed without damaging a floor or the like such as opening a floor.
[0010]
[Means for Solving the Problems]
In order to solve the above problem, the invention of the vibration damping device according to claim 1 is a first fixing means for fixing the vibration damping object to the vibration damping object by the self-adhesive force or the frictional force of the contact surface. A vibration damping means fixed to the first fixing means and capable of attenuating the vibration of the vibration damping object transmitted through the first fixing means; and a self-adhesive force or a frictional force of the contact surface. A second fixing means for fixing the apparatus and the floor, and a second fixing means fixed to the second fixing means to assist movement of the first fixing means and the swing damping means, and the first fixing means Adjusting means for adjusting the distance between the second fixing means and the second fixing means.
[0011]
According to a second aspect of the present invention, the adjusting means has an inlet capable of injecting a gel-like substance, and comprises a storage means which expands in accordance with a filling amount of the gel-like substance, wherein the storage means is provided. The inflating causes the first fixing means and the sway damping means to move, generating a pressure applied to both the first fixing means and the second fixing means. It is a vibration control device.
[0012]
According to a third aspect of the present invention, the adjusting means moves the first fixing means and the swing damping means to generate a pressure applied to both the first fixing means and the second fixing means. The vibration damping device according to claim 1, further comprising a jack.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 are structural views of a vibration damping device 10 according to a first embodiment of the present invention. FIG. 1 is a sectional view, FIG. 2 is a plan view, and FIG. 3 is a perspective view. 1 to 3, reference numeral 1 denotes a fixing elastic portion on the upper side of the vibration damping device 10. Reference numeral 2 denotes a fixing plate to which the fixing elastic portion 1 is fixed. Reference numeral 3 denotes a swing damping portion fixed to the fixed plate 2. Reference numeral 4 denotes a body fixed to the vibration damping unit 3.
[0014]
Reference numeral 5 denotes an adjustment unit that assists the up-and-down movement of the body unit 4 and adjusts the height of the fixing elastic unit 1. Reference numeral 6 denotes a fixing elastic portion on the lower side of the vibration damping device 10, and the fixing elastic portion 6 is fixed to the adjusting portion 5. Reference numeral 7 denotes a bag provided inside the adjustment unit 5. Reference numeral 8 denotes an inlet of the bag 7. Reference numeral 9 denotes a hole provided in the adjusting part 5 for taking out the injection port part 8 out of the vibration damping device 10.
[0015]
The fixing elastic portions 1 and 6 are made of a viscoelastic body having viscosity such as viscous rubber. The fixing elastic portion 1 is in close contact with the vibration damping object that reduces the vibration, and fixes the vibration damping object and the vibration damping device 10 by its own adhesive force and frictional force of the contact surface. The fixing elastic portion 6 is in close contact with the floor surface and fixes the vibration damping device 10 to the floor by its own adhesive force and frictional force of the contact surface. As the viscoelastic body used for the elastic portions 1 and 6 for fixing, for example, Nebari (registered trademark) manufactured by Imai Rubber Co., Ltd. or GELNIC (registered trademark) manufactured by NEC Corporation can be used.
[0016]
The vibration damping part 3 attenuates the vibration of the vibration damping object transmitted via the fixing elastic part 1 and the fixing plate 2 by deforming itself. The swing damping portion 3 is made of a high damping laminated rubber. As the high-damping laminated rubber, for example, a viscoelastic material such as Multi Rubber Bearing (registered trademark) manufactured by Bridgestone or VEM Damper (registered trademark) manufactured by Sumitomo 3M can be used.
[0017]
The adjusting portion 5 is arranged along the outer periphery of the body portion 4 and supports the body portion 4 to assist the movement thereof. When the body portion 4 moves, the fixing elastic portion 1 and the vibration damping portion 3 also move together. The adjusting portion 5 is capable of adjusting the distance between the fixing elastic portion 1 and the fixing elastic portion 6, and adjusting the distance adjusts the height at which the fixing elastic portion 1 is located. I do.
[0018]
In the adjustment section 5, the bag 7 is for storing a gel-like substance, and is made of a material that expands according to the filling amount of the gel-like substance. For example, a balloon rubber can be used as the bag 7. The inlet 8 has an inlet for injecting a gel-like substance into the bag 7. The bag 7 has a structure in which the gel-like substance injected from the injection port does not flow backward and is discharged from the bag 7. For example, a check valve is provided inside the inlet 8.
[0019]
By filling the bag 7 with a gel-like substance, the shape of the bag 7 expands according to the filling amount. The body 4 rises in accordance with the degree of expansion of the bag 7, and as a result, the fixing elastic portion 1 is positioned higher. Therefore, by adjusting the filling amount of the gel-like substance to be injected into the bag 7, the height at which the fixing elastic portion 1 is located can be adjusted. In addition, as the gel-like substance to be injected into the bag 7, silicon processed into a gel-like substance or the like can be used.
In addition, when the bag 7 is inflated, a pressure is generated to push up the body 4, and this pressure is transmitted to both the fixing elastic portions 1 and 6. Due to this pressure, a frictional force is generated between the fixing elastic portion 1 and the contact surface, and a frictional force is generated between the fixing elastic portion 6 and the contact surface. The floor, the vibration damping device 10 and the vibration damping object 20 are fixed by the frictional force and the adhesive force of the fixing elastic portions 1 and 6.
[0020]
When the bag 7 expands, the inlet 8 also rises according to the degree of the expansion. In order to cope with this, the hole 9 of the adjustment part 5 is formed in a vertically long shape. In this way, even if the bag 7 swells and the injection port 8 rises, it is possible to inject the gel-like substance without any problem.
[0021]
Next, a method of installing the above-described vibration control device 10 will be described with reference to FIGS. 4 and 5 are diagrams for explaining a method of installing the vibration damping device 10. In FIGS. 4 and 5, reference numeral 20 denotes a vibration control target such as equipment or furniture, and the vibration control target 20 has its own bottom surface separated from the floor. Reference numeral 21 denotes a leg of the vibration damping object 20. As shown in FIG. 5, the legs 21 may be movable (for example, casters) for moving the vibration damping target 20, or may be fixed. Reference numeral 30 denotes a floor on which the vibration damping object 20 is placed.
[0022]
First, as shown in FIG. 4, the vibration damping device 10 is placed under the vibration control target 20 and substantially at the center of the bottom surface, and the fixing elastic portion 6 is brought into close contact with the floor surface of the floor 30. Next, a gel-like substance is injected from the injection port 8 of the vibration damping device 10. Here, as shown in FIG. 5, the gel-like substance is injected until the fixing elastic portion 1 is located at a height at which the elastic portion 1 is in close contact with the bottom surface of the vibration damping object 20. As a result, the bag 7 swells, and the pressure due to the swelling is transmitted to both the fixing elastic portions 1 and 6, and a frictional force is generated on the contact surface between the fixing elastic portion 1 and the bottom surface of the vibration damping object 20. A friction force is generated on the contact surface between the fixing elastic portion 6 and the floor surface. The floor 30, the vibration damping device 10, and the vibration damping object 20 are fixed by the frictional force and the adhesive force of the fixing elastic portions 1, 6.
[0023]
By installing the vibration damping device 10 in this manner, the vibration caused by the earthquake is attenuated by the vibration damping unit 3 of the vibration damping device 10. As a result, it is possible to obtain an effect that the shaking of the vibration damping object 20 can be reduced, and the falling and moving of the vibration damping object 20 can be prevented.
[0024]
Next, a vibration damping device 11 according to a second embodiment of the present invention will be described with reference to FIGS. 6 and 7 are structural views of a vibration damping device 11 according to a second embodiment of the present invention. FIG. 6 is a sectional view, and FIG. 7 is a perspective view. The plan view of the vibration damping device 11 is the same as that of FIG. In FIGS. 6 and 7, parts corresponding to those in FIGS. 1 and 3 are denoted by the same reference numerals, and description thereof will be omitted.
[0025]
The vibration damping device 11 shown in FIGS. 6 and 7 differs from the vibration damping device 10 according to the above-described first embodiment in that a jack 12 is provided inside the adjustment portion 5 instead of the bag 6. The jack 12 is a mechanical type constituted by screws, gears, and the like, and includes a rotating rod 13 that transmits a force for jacking up. Further, a handle 14 for rotating the rotating rod 13 is provided. This handle 14 is detachable. As shown in FIG. 7, the adjusting portion 5 is provided with a vertically long hole 15. As shown in FIG. 6, the rotary rod 13 of the jack 12 extends out of the vibration control device 11 through the hole 15. In the vibration damping device 11 according to the second embodiment, the body 12 is jacked up by the jack 12 to adjust the height at which the fixing elastic portion 1 is located.
Further, the jack-up causes a pressure to push up the body portion 4, and this pressure is transmitted to both the fixing elastic portions 1 and 6. Due to this pressure, a frictional force is generated between the fixing elastic portion 1 and the contact surface, and a frictional force is generated between the fixing elastic portion 6 and the contact surface. The floor, the vibration damping device 11 and the vibration damping object are fixed by the frictional force and the adhesive force of the fixing elastic portions 1 and 6.
[0026]
In the method of installing the vibration control device 11 described above, first, similarly to the vibration control device 10 shown in FIG. The fixing elastic part 6 is brought into close contact. Next, the rotating rod 13 of the jack 12 is rotated by the handle 14 to jack up the jack 12, and the fixing elastic part 1 is brought into close contact with the bottom surface of the vibration damping target 20, similarly to the vibration damping device 10 shown in FIG. Adjust the height.
[0027]
As a result, the pressure generated by the jack-up is transmitted to both the fixing elastic portions 1 and 6, and a frictional force is generated at the contact surface between the fixing elastic portion 1 and the bottom surface of the vibration damping object 20. A frictional force is generated at the contact surface between the floor and the floor. The floor 30, the vibration damping device 10, and the vibration damping object 20 are fixed by the frictional force and the adhesive force of the fixing elastic portions 1 and 6, and the vibration caused by the earthquake is attenuated by the vibration damping portion 3. As a result, as in the first embodiment, the effect of reducing the shaking of the vibration damping object 20 and preventing the vibration damping object 20 from falling or moving can be obtained. Can be
[0028]
In the above-described second embodiment, if the jack 12 is jacked down, the vibration damping device 11 can be removed without moving the vibration damping target 20.
[0029]
Further, in the above-described second embodiment, a mechanical jack is provided as the jack 12, but the jack 12 may be jack-up using hydraulic or hydraulic pressure.
[0030]
In the above-described embodiment, the fixing elastic portion is constituted by a viscoelastic body having an adhesive force, and the vibration damping device or the floor is fixed to the vibration damping device by the adhesive force and the frictional force of the contact surface. However, the fixing elastic portion may be constituted by a viscoelastic body having no adhesive force, and the vibration damping device or the floor may be fixed to the vibration damping device only by the frictional force of the contact surface. .
[0031]
According to the present embodiment as described above, when installing the vibration damping device, the vibration damping device is placed between the vibration damping target and the floor, and the fixing elastic portion 6 is brought into close contact with the floor surface, It is only necessary to adjust the height of the fixing elastic portion 1 so as to be in close contact with the bottom surface of the vibration damping object. For this reason, in order to fix an object (equipment, furniture, etc.) whose base is separated from the floor, the damping device can be easily installed without damaging the floor, such as by drilling holes for fixing brackets. Can be installed. Further, even when the vibration control target has already been installed, the height of the fixing elastic portion 1 may be adjusted by placing the vibration control target under the vibration control target, and the installation can be easily performed.
[0032]
In the above-described embodiment, the fixing elastic portion 1 corresponds to the first fixing device, and the fixing elastic portion 6 corresponds to the second fixing device. Further, the vibration damping unit 3 corresponds to a vibration damping unit. In the first embodiment, the adjusting section 5 and the bag 7 correspond to the adjusting means, and the bag 7 corresponds to the storing means. In the second embodiment, the adjusting part 5 and the jack 12 correspond to the adjusting means.
[0033]
As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes a design change or the like without departing from the gist of the present invention.
[0034]
【The invention's effect】
As described above, according to the present invention, the vibration control device is placed between the object to be damped and the floor, the second fixing means is brought into close contact with the floor surface, and the first fixing means is set to the object to be controlled. The vibration damping device can be installed by a simple operation of adjusting the height so that it is in close contact with the bottom of the object. In addition, in order to fix an object whose vibration is to be set such that the bottom surface is placed away from the floor, an effect is obtained in that the floor does not need to be damaged, such as by opening a mounting hole for a fixing bracket. Further, even when a vibration control target is already installed, the height of the first fixing means may be adjusted by placing the control target under the vibration control target, and the installation can be easily performed.
[Brief description of the drawings]
FIG. 1 is a first structural diagram of a vibration damping device 10 according to a first embodiment of the present invention.
FIG. 2 is a second structural diagram of the vibration damping device 10 according to the first embodiment of the present invention.
FIG. 3 is a third structural diagram of the vibration damping device 10 according to the first embodiment of the present invention.
FIG. 4 is a first diagram for describing a method of installing the vibration damping device 10.
FIG. 5 is a second diagram for describing a method of installing the vibration damping device 10.
FIG. 6 is a first structural diagram of a vibration damping device 11 according to a second embodiment of the present invention.
FIG. 7 is a second structural diagram of a vibration damping device 11 according to a second embodiment of the present invention.
[Explanation of symbols]
1, 6 fixing elastic part 2 fixing plate 3 shaking damping part 4 body part 5 adjusting part 7 bag 8 injection part 9, 15 hole 10, 11 vibration damping device 12 jack 13 rotating rod 14 handle

Claims (3)

First fixing means for fixing the self-apparatus and the vibration damping object by its own adhesive force or frictional force of the contact surface;
A vibration damping means fixed to the first fixing means and capable of damping a vibration of the vibration damping object transmitted through the first fixing means;
Second fixing means for fixing the device and the floor by its own adhesive force or frictional force of the contact surface;
Adjustable fixed to the second fixing means, assisting the movement of the first fixing means and the swing damping means, and capable of adjusting the distance between the first fixing means and the second fixing means. Means,
A vibration damping device comprising: The adjusting means comprises:
It has an inlet capable of injecting a gel-like substance, and comprises a storage means which expands according to the filling amount of the gel-like substance,
The pressure of the first fixing means and the second fixing means is generated by moving the first fixing means and the swing damping means by expanding the accumulating means. 2. The vibration damping device according to 1. The adjusting means comprises:
2. A jack according to claim 1, further comprising a jack for moving said first fixing means and said sway damping means to generate a pressure applied to both said first fixing means and said second fixing means. The mentioned damping device.

Images