JP2003014032A - Vibration isolating damper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration isolating damper which can relatively easily carry out manufacture and assembly while miniaturization can be attained. SOLUTION: This vibration isolating damper, interposed between a vibration isolated member 102 and a supporter 101 supporting this vibration isolated member 102 to suppress vibration of the vibration isolated member 102, comprises a plurality of damper body 20 formed by an elastic member to have a recessed part 21 insertion fitted with a protrusion part 103 provided in either one of the vibration isolated member 102 or the supporter 101 and one fixing member 30 connecting the opposite surface side to the recessed part 21 of this damper body 20 to fix a plurality of these damper body 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration damper for absorbing vibration in precision equipment or audio equipment.

[0002]

2. Description of the Related Art In electronic equipment such as precision equipment and audio equipment, external vibration often adversely affects the performance of the electronic equipment body. Therefore, in order to absorb the vibration from the outside, a damper is built in the electronic device.

In particular, CD players, MD players, DV
When an electronic device such as a D player is mounted on a vehicle with severe vibration such as an automobile, it is possible to effectively absorb the vibration received by the automobile and prevent the vibration from being transmitted to the electronic device body. It is essential to take

As a structure of a vibration damper used for such a purpose, various structures have been conventionally known. Among them, a damper body is filled with a viscous substance such as silicone oil or gel. The viscous fluid-filled type vibration damping damper is preferably used.

[0005]

However, such a viscous fluid-filled type vibration damping damper has a large amount of vibration damping because one lid body seals the viscous fluid against one damper body. There is a problem that the manufacturing efficiency is low in manufacturing the damper.

Further, when mounting a plurality of anti-vibration dampers on a device such as an electronic device, a relatively large mounting area is required, which causes a problem that the device becomes large.

In view of such circumstances, it is an object of the present invention to provide a vibration damper which can be made compact and which can be manufactured and assembled relatively easily.

[0008]

According to a first aspect of the present invention for solving the above-mentioned problems, the vibration-isolated member is interposed between a vibration-isolated member and a support for supporting the vibration-isolated member. In a vibration-damping damper that suppresses the vibration of a plurality of damper bodies, each of which has an elastic member and has a concave portion into which a protrusion provided on either the vibration-damped member or the support body is inserted, and the damper body. The anti-vibration damper is characterized in that it has one fixing member for fixing the plurality of damper bodies to each other on the side opposite to the concave portion.

A second aspect of the present invention is the vibration-damping damper according to the first aspect, characterized in that a viscous fluid is enclosed in the damper body.

According to a third aspect of the present invention, in the first or second aspect, the fixing member is made of a resin material, and the locking portion provided on either the vibration-isolated member or the support. The vibration-damping damper is characterized by having an engaging portion for engaging with.

According to a fourth aspect of the present invention, in the first or second aspect, the fixing member also serves as a part of either the vibration-isolated member or the support. It's on the damper.

According to the present invention, it is possible to reduce the size of the vibration damping damper, and it is possible to provide a plurality of vibration damping dampers within a relatively small space. Further, the number of parts can be reduced, the manufacturing process can be simplified, and the cost can be reduced.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below based on embodiments. 1 is a top view and a cross-sectional view showing a vibration damping damper according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a main portion of a vibration damping support device using the vibration damping damper according to the present embodiment. It is a figure.

As shown in the figure, the anti-vibration damper 10 of this embodiment is used by being fixed to the device main body 101 of the anti-vibration supporting device 100, and a plurality of, for example, two damper main bodies 20 are provided.
And one fixing member 30 joined to the opening side of the plurality of damper main bodies 20. A viscous fluid 40 such as silicone oil is enclosed in each damper body 20.

The damper main body 20 has a substantially cylindrical shape and is provided on the side opposite to the surface where it is joined to the fixing member 30 of the vibration-proof member 102 which is an electronic device such as a CD player, MD player, DVD player or the like. Projection 103 provided on the surface
Has a recess 21 into which is engaged. In addition, the periphery of the recess 21 of each damper body 20 is a corrugated bellows portion 22 formed in a wave shape in order to enhance a vibration absorbing effect.

Further, in this embodiment, the damper body 20 is used.
An annular flange member 2 made of a relatively hard resin material such as polypropylene (PP) is provided at the end portion on the opening side of the
3 is integrally provided, the fixing member 30 is joined to the flange member 23, and the viscous fluid 40 is sealed in the damper body 20. The method of joining the damper body 20 and the fixing member 30 is not particularly limited, and may be joined by, for example, adhesion or fusion.

Such a damper body 20 is, for example,
A thermoplastic elastomer or the like is used, and the type of the thermoplastic elastomer is the required flexibility, the properties of the fluid to be enclosed,
It may be appropriately selected in consideration of the adhesiveness with the material of the flange member, and for example, polystyrene-polybutadiene-
SEBS obtained by hydrogenating a polystyrene block copolymer (SBS), or styrene-polyisoprene-
SEPS and the like obtained by hydrogenating a polystyrene block copolymer (SIS) can be preferably used.

On the other hand, such a plurality of damper bodies 20
The fixing members 30 fixed adjacent to each other are formed of a resin material having a relatively high rigidity, for example, polypropylene (PP), and the flange member of the damper body 20 is provided on the joint surface side with each damper body 20. A protruding portion 31 joined to the outer end surface is provided along the outer circumference of the two damper bodies 20. As a result, the damper body 20 and the fixing member 30 are positioned, and the damper body 2 due to the deformation of the damper body 20 in the direction intersecting the axis of the recess 21 is formed.
It prevents the peeling of 0.

Here, the protrusions 31 are not provided in the regions of the fixing members 30 facing each other between the adjacent damper main bodies 20, and the two damper main bodies 20 are in contact with each other, and the fixing members 30 are in contact with each other. It is fixed to. Therefore,
It is possible to save space compared to fixing two conventional anti-vibration dampers side by side.

Further, on the outside of the protruding portion 31 of the fixing member 30, there are provided a flange portion 33 having a through hole 32 for screwing when fixing to the apparatus main body 101, and a plurality of convex portions 34 for positioning. Each of them is provided at a predetermined position so as to project in the surface direction. The positions where the flange portion 33 and the convex portion 34 are formed are not particularly limited, and they may be provided at any positions.

Further, as shown in FIG. 3, a portion of the protruding portion 31 of the fixing member 30 which protrudes outside the flange portion 33 or the convex portion 34 may be removed. Thereby, the vibration damper 10 can be further downsized.

Although not shown, such a vibration damper 10 is positioned by engaging a convex portion with an engaging portion provided on the apparatus main body 101, and is screwed through a through hole of a flange portion. It is fixed to the apparatus main body 101.

The vibration damper 10 of this embodiment as described above.
Then, a plurality of damper bodies 20 are attached to one fixing member 30.
The number of parts can be reduced and the manufacturing process can be simplified. Further, the structure of the apparatus main body 101 side can be simplified, and the mountability of the vibration damping damper 10 can be improved. Therefore, the cost can be reduced and the price of the vibration damper can be reduced.

In this embodiment, the vibration-proof member 102 is
The protrusion 103 is provided in the above, and the structure in which the vibration damping damper 10 is fixed to the apparatus main body 101 has been described as an example.
However, the present invention is not limited to this, and for example, as shown in FIG.
The vibration damping damper 10 may be fixed to 02A. Even with such a configuration, it is of course possible to obtain the effects described above.

Further, in the present embodiment, the vibration damping damper 10 is fixed to the apparatus main body 101 by screwing, but the method of fixing the vibration damping damper 10 is not particularly limited, and for example, the fixing member 30. The structure may be fixed to the apparatus main body 101 by sliding. Specifically, as shown in FIG. 5, a plurality of, for example, four, which protrude in the surface direction to the outside of the protrusion 31 of the fixing member 30, are provided.
One convex portion 34A is provided. On the other hand, in the device body 101,
A plurality of engaging portions 104 with which the convex portions 34A of the fixing member 30 are respectively engaged are provided. Then, by rotating the fixing member 30 in the surface direction of the apparatus main body 101, the convex portion 34A
May be engaged and held by the engaging portion 104.

Further, for example, as shown in FIG. 6, a plurality of deformable bending projections 105 made of metal or the like are provided on the surface of the apparatus main body 101 on which the vibration damper 10 is fixed,
The fixing member 30 may be fixed on the apparatus main body 101 by bending the bending protrusion 105.

Further, for example, as shown in FIG. 7, a locking projection 106 is provided on the apparatus main body 101 and the fixing member 3 is provided.
The engaging portion 35 to be engaged with the engaging protrusion 106 is provided on the surface opposite to the joint surface of the damper body 20 of 0, and the engaging portion 35 is engaged with the engaging protrusion 106 of the apparatus body 101. By doing so, the vibration damper 10 may be fixed to the apparatus main body 101.

Specifically, the locking portion 35 is provided in a region corresponding to the central portion of one damper body 20, and a through hole 36 penetrating along the surface of the fixing member 30 and the through hole 36. And a locking convex portion 37 protruding inward.
The locking projection 1 of the apparatus body 101 is inserted into the through hole 36.
When the locking projection 37 is inserted into the device main body 1
The vibration-damping damper 10 is caught by the locking projection 106 of 01.
Is fixed to the apparatus main body 101.

Further, for example, as shown in FIG. 8, a fixing portion 30 is provided with a locking portion including a shaft portion 38 and an engaging portion 39 having a diameter larger than the diameter of the shaft portion 38 and elastically deformable. 35
The antivibration damper 10 may be fixed to the apparatus body 101 by providing A and pushing the locking portion 35A into the through hole 107 provided in the apparatus body 101.

Further, for example, as shown in FIG. 9, the fixing member 30 is provided with a locking portion 35B including a shaft portion 38 and an engaging portion 39A having a predetermined shape and having a diameter larger than that of the shaft portion 38. The device body 101 is provided with a through hole 107A having substantially the same shape as the engaging portion 39A, and the engaging portion 39A and the through hole 10 are provided.
7A through the engaging portion 39A through the through hole 107A
The fixing member 30 may be fixed to the apparatus main body 101 by inserting it into the device main body 101 and then rotating the locking portion 35B.

With any of the above configurations, the vibration damper 10 can be easily assembled to the apparatus main body 101.

Further, in this embodiment, the vibration damper 10 is used.
Although the above is fixed to the apparatus main body 101, the present invention is not limited to this, and for example, the fixing member may double as a part of the apparatus main body. For example, if the fixing member 30 made of a resin material such as polypropylene (PP) constitutes a part of the apparatus main body, the weight of the apparatus main body can be reduced. Further, the cost can be further reduced, and the height of the damper main body 20 can be increased to improve the vibration absorption characteristics.

Although the embodiments of the present invention have been described above, of course, the present invention is not limited thereto.

For example, in the above-described embodiment, the viscous fluid is enclosed in the damper main body made of thermoplastic elastomer, but the present invention is not limited to this. For example, the damper main body may be made of elastic material such as rubber member or thermoplastic elastomer. It may be formed of only members.

Further, in the above-described embodiment, the vibration damper having two damper bodies joined to one fixing member has been described as an example. However, the number of damper bodies is not particularly limited, and one damper body is fixed. About 2 to 6 damper bodies may be joined to the member to form a vibration damper.

[0036]

As described above, according to the present invention, a plurality of damper bodies are fixed to one fixing member. Therefore, it is possible to reduce the size of the vibration damping damper while maintaining the same vibration damping characteristic as the conventional one. You can Further, the number of parts can be reduced, the manufacturing process and the assembling process can be simplified, and the price of the vibration damper can be reduced.

[Brief description of drawings]

FIG. 1 is a top view and a cross-sectional view showing a vibration damping damper according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a main part of a vibration-damping support device using a vibration-damping damper according to an embodiment of the present invention.

FIG. 3 is a top view and a cross-sectional view showing a modified example of the vibration damping damper according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a modified example of the vibration damping damper according to the embodiment of the present invention.

FIG. 5 is a top view showing an example of a method of fixing the vibration damping damper according to the embodiment of the present invention.

6A and 6B are a top view and a cross-sectional view showing an example of a method for fixing the vibration damping damper according to the embodiment of the present invention.

FIG. 7 is a cross-sectional view showing an example of a method of fixing the vibration damping damper according to the embodiment of the present invention.

FIG. 8 is a cross-sectional view showing an example of a method of fixing the vibration damping damper according to the embodiment of the present invention.

9A and 9B are a cross-sectional view and a schematic perspective view showing an example of a method of fixing the vibration damping damper according to the embodiment of the present invention.

[Explanation of symbols]

10 Anti-vibration damper 20 damper body 21 recess 30 fixing member 31 Projection

Claims (4)

[Claims] 1. A vibration-damping damper, which is interposed between a vibration-isolated member and a support for supporting the vibration-isolated member and suppresses vibration of the vibration-isolated member, the vibration-damping member comprising an elastic member. A plurality of damper main bodies having a concave portion into which a protrusion provided on either the member or the support is fitted, and a surface of the damper main body opposite to the concave portion is joined to fix the plurality of damper main bodies. An anti-vibration damper having one fixing member. 2. The vibration damper according to claim 1, wherein a viscous fluid is enclosed in the damper body. 3. The fixing member according to claim 1, wherein the fixing member is made of a resin material, and has an engaging portion that engages with a locking portion provided on either the vibration-isolated member or the support body. Anti-vibration damper characterized by that. 4. The vibration-damping damper according to claim 1, wherein the fixing member also serves as a part of either the vibration-damped member or the support.