JPH0369831A - Vibration isolating member - Google Patents
Vibration isolating memberInfo
- Publication number
- JPH0369831A JPH0369831A JP20465389A JP20465389A JPH0369831A JP H0369831 A JPH0369831 A JP H0369831A JP 20465389 A JP20465389 A JP 20465389A JP 20465389 A JP20465389 A JP 20465389A JP H0369831 A JPH0369831 A JP H0369831A
- Authority
- JP
- Japan
- Prior art keywords
- viscoelastic
- vibration isolating
- rubber
- hardness
- viscosity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 25
- 239000005060 rubber Substances 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract 3
- 238000013016 damping Methods 0.000 claims 1
- 230000005484 gravity Effects 0.000 claims 1
- 238000002955 isolation Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 8
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000710542 Chrysichthys cranchii Species 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
- Springs (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、例えば、光デイスクドライブ装置において、
シャーシ等の支持体に生じた振動（機械的な外部振動）
が本体である被支持体に伝わるのを防止するための防振
部材に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is applicable to, for example, an optical disk drive device.
Vibrations generated in supporting bodies such as chassis (mechanical external vibrations)
This relates to a vibration isolating member for preventing vibrations from being transmitted to a supported body, which is a main body.
従来の防振部材においては、例えば、実開昭６３−１８
４４９４号公報に記載のように、被支持体に加わる垂直
、水平の荷重方向に対する、該防振部材の垂直および水
平方向の各々のバネ定数の和が等しくなる様にしていた
。In conventional vibration isolating members, for example,
As described in Japanese Patent No. 4494, the sum of the spring constants of the vibration isolating member in the vertical and horizontal directions is made equal to the vertical and horizontal load directions applied to the supported body.
上記従来技術においては、時間が経過するに従って、防
振部材がクリープ（永久変形）を起こしたり、或いは、
゛流れ現象（構成する材料が流れ出すこと）を起こした
りする場合があり、その様な場合には支持体に生じた振
動を被支持体に伝えてしまうと言う問題があった。In the above conventional technology, as time passes, the vibration isolating member causes creep (permanent deformation) or
``A flow phenomenon (the constituent materials flowing out) may occur, and in such a case, there is a problem in that the vibrations generated in the support body are transmitted to the supported body.
本発明の目的は、上記した従来技術の問題点を解決し、
クリープや流れ現象を起こすことがなく、しかも、容易
に組み立てる可能な防振部材を提供することにある。The purpose of the present invention is to solve the problems of the prior art described above,
To provide a vibration isolating member that does not cause creep or flow phenomena and can be easily assembled.
〔課題を解決するための手段〕
上記した目的を遠戚するために、本発明では、防振部材
を、粘度及び硬度がそれぞれ異なる２種類以上の粘弾性
部材を接続して構成するようにした。しかも、２種類以
上の前記粘弾性部材のうち、最も粘度及び硬度の高い粘
弾性部材によって、その他の粘弾性部材の、少なくとも
側面及び底面を囲むようにした。[Means for Solving the Problems] In order to achieve the above-mentioned object, in the present invention, the vibration isolating member is constructed by connecting two or more types of viscoelastic members each having a different viscosity and hardness. . Moreover, among the two or more types of viscoelastic members, the viscoelastic member with the highest viscosity and hardness surrounds at least the side and bottom surfaces of the other viscoelastic members.
なお、各々の粘弾性部材は、圧縮成形により作成され１
組立時に互いに係合する様な形状となっている。In addition, each viscoelastic member was created by compression molding.
The shapes are such that they engage with each other during assembly.
２種類以上の前記粘弾性部材のうち、最も粘度及び硬度
の高い粘弾性部材によって、その他の粘弾性部材の、少
なくとも側面及び底面を囲むようにすることにより、そ
れら粘弾性部材がクリープや流れ現象を起こすのを防止
することができる。Of the two or more types of viscoelastic members, the viscoelastic member with the highest viscosity and hardness surrounds at least the side and bottom surfaces of the other viscoelastic members, thereby preventing the viscoelastic members from creep or flow phenomena. can be prevented from occurring.
しかも、各粘弾性部材を接続して組み立てる際には、各
粘弾性部材をそれぞれ弾性変形させながら互いに係合さ
せて接続することによって、容易に組み立てることがで
きる。Furthermore, when connecting and assembling the viscoelastic members, the viscoelastic members can be easily assembled by engaging each other and connecting while elastically deforming each viscoelastic member.
以下、本発明の実施例を図面を用いて説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例としての防振部材の断面を示
す断面図、第２図は本発明の他の実施例としての防振部
材の断面を示す断面図、第３図は本発明による防振部材
が適用される光デイスクドライブ装置を示す斜視図、第
４図は第３図の光デイスクドライブ装置の断面を示す断
面図である。FIG. 1 is a sectional view showing a cross section of a vibration isolating member as an embodiment of the present invention, FIG. 2 is a sectional view showing a cross section of a vibration isolating member as another embodiment of the present invention, and FIG. FIG. 4 is a perspective view showing an optical disk drive device to which the vibration isolating member according to the invention is applied, and FIG. 4 is a sectional view showing a cross section of the optical disk drive device shown in FIG. 3.
第３図に示す光デイスクドライブ装置においては、第４
図に示すように、フレーム４が、光デイスク内蔵のカセ
ット６を収納するケース７や、記録、再生等を行う本体
８などを搭載している。そして、シャーシ５が、その支
持部５ａにて、フレーム４を防振部材９を介して支持し
ている。In the optical disk drive device shown in FIG.
As shown in the figure, a frame 4 is equipped with a case 7 for storing a cassette 6 containing a built-in optical disk, a main body 8 for recording, reproducing, and the like. The chassis 5 supports the frame 4 via the vibration isolating member 9 at its support portion 5a.
防振部材９は、支持する物体の総重量に応じた粘度及び
硬度を持つゴム１を、ゴム１よりも高い粘度及び硬度を
持つゴム２で覆って構成されており、ねじ３によってシ
ャーシ５の支持部５ａに固定されている。そして、フレ
ーム４は、第１図の実施例ではゴム１に直接接続され、
第２図の実施例ではゴム２に直接接続されている。The vibration isolating member 9 is constructed by covering a rubber 1 with a viscosity and hardness corresponding to the total weight of the object to be supported with a rubber 2 having a higher viscosity and hardness than the rubber 1. It is fixed to the support part 5a. In the embodiment of FIG. 1, the frame 4 is directly connected to the rubber 1,
In the embodiment of FIG. 2, it is connected directly to the rubber 2.
ここで、ゴム上は、フレーム４への振動の伝達を防止し
ており、また、ゴム２は、主として、ゴム１のクリープ
や流れ現象の発生を防止している。Here, the rubber layer prevents vibrations from being transmitted to the frame 4, and the rubber layer 2 mainly prevents the rubber layer 1 from creeping or flowing.
また、ゴム１とゴム２を接続して組み立てる際には、各
ゴムをそれぞれ弾性変形させながら互いに係合させて接
続することによって、容易に組み立てることができる。Further, when connecting and assembling the rubber 1 and the rubber 2, each rubber can be easily assembled by engaging and connecting each rubber while elastically deforming each rubber.
しかも、この係合は、矢印（イ）、（ロ）方向のゴム１
の抜は止めになる。Moreover, this engagement is caused by the rubber 1 in the directions of arrows (a) and (b).
It will stop you from removing it.
本発明によれば、２種類以上の粘弾性部材のうち、最も
粘度及び硬度の高い粘弾性部材によって、その他の粘弾
性部材がクリープや流れ現象を起こすのを防止すること
ができる。また、上記したその他の粘弾性体によって、
支持体に生じた振動が被支持体に伝わるのを防止するこ
とができる。According to the present invention, among two or more types of viscoelastic members, the viscoelastic member with the highest viscosity and hardness can prevent the other viscoelastic members from causing creep or flow phenomena. In addition, due to the other viscoelastic bodies mentioned above,
It is possible to prevent vibrations generated in the support body from being transmitted to the supported body.
しかも、各粘弾性部材を接続して組み立てる際には、各
粘弾性部材をそれぞれ弾性変形させながら互いに係合さ
せて接続することによって、容易に組み立てることがで
きる。Furthermore, when connecting and assembling the viscoelastic members, the viscoelastic members can be easily assembled by engaging each other and connecting while elastically deforming each viscoelastic member.
第１図は本発明の一実施例としての防振部材の断面を示
す断面図、第２図は本発明の他の実施例としての防振部
材の断面を示す断面図、第３図は本発明による防振部材
が適用される光デイスクドライブ装置を示す斜視図、第
４図は第３図の光デイスクドライブ装置の断面を示す断
面図である。
１・・・ゴム、 ２・・・ゴム、３・・・
ねじ、 ４・・・フレーム、５・・・シャ
ーシ、 ６・・・カセット、７・・・ケース、
８・・・本体、９・・・防振部材。
晃ｌ圀
第２囚
第３目
第４６FIG. 1 is a sectional view showing a cross section of a vibration isolating member as an embodiment of the present invention, FIG. 2 is a sectional view showing a cross section of a vibration isolating member as another embodiment of the present invention, and FIG. FIG. 4 is a perspective view showing an optical disk drive device to which the vibration isolating member according to the invention is applied, and FIG. 4 is a sectional view showing a cross section of the optical disk drive device shown in FIG. 3. 1...Rubber, 2...Rubber, 3...
Screw, 4... Frame, 5... Chassis, 6... Cassette, 7... Case,
8... Main body, 9... Vibration isolating member. Kokuni 2nd Prisoner 3rd 46th
Claims (1)
じた振動が前記被支持体に伝わるのを防止する防振部材
において、粘度及び硬度がそれぞれ異なる２種類以上の
粘弾性部材を接続して成ることを特徴とする防振部材。 ２、請求項１に記載の防振部材において、２種類以上の
前記粘弾性部材は、それぞれ、ゴムから成ることを特徴
とする防振部材。 ３、請求項１または２に記載の防振部材において、２種
類以上の前記粘弾性部材のうち、最も粘度及び硬度の高
い粘弾性部材によって、その他の粘弾性部材の、少なく
とも側面及び底面を囲むように接続して成ることを特徴
とする防振部材。 ４、請求項３に記載の防振部材において、２種類以上の
前記粘弾性部材のうち、最も粘度及び硬度の高い粘弾性
部材（以下、第１の粘弾性部材と称す）は、その厚さが
比較的薄く、その内部が中空で釣り鐘形状を成し、その
内面に複数の突起及び／または凹部を有すると共に、前
記第１の粘弾性部材の内部に配され、該第１の粘弾性部
材と接するその他の粘弾性部材は、前記突起及び／また
は凹部と嵌合する凹部及び／または突起をその外面に有
することを特徴とする防振部材。 ５、請求項１，２，３または４に記載の防振部材におい
て、該防振部材が２種類の粘弾性部材を重力方向に沿っ
て直列に接続して成る場合、粘度及び硬度が高い方の粘
弾性部材によって比較的高い周波数の振動の伝達を防止
し、低い方の粘弾性部材によって比較的低い周波数の振
動の伝達を防止することを特徴とする防振部材。[Claims] 1. A vibration-proofing member disposed between a support and a supported body to prevent vibrations generated in the support from being transmitted to the supported body, each having a different viscosity and hardness. A vibration isolating member characterized by being formed by connecting two or more types of viscoelastic members. 2. The vibration isolating member according to claim 1, wherein the two or more types of viscoelastic members are each made of rubber. 3. In the vibration isolation member according to claim 1 or 2, at least the side and bottom surfaces of the other viscoelastic members are surrounded by the viscoelastic member having the highest viscosity and hardness among the two or more types of viscoelastic members. A vibration isolating member characterized by being connected as shown in FIG. 4. In the vibration isolating member according to claim 3, of the two or more types of viscoelastic members, the viscoelastic member with the highest viscosity and the highest hardness (hereinafter referred to as the first viscoelastic member) has a thickness that is is relatively thin, has a bell shape with a hollow interior, and has a plurality of protrusions and/or recesses on its inner surface, and is disposed inside the first viscoelastic member, and the first viscoelastic member A vibration isolating member characterized in that the other viscoelastic member in contact with the vibration damping member has a recess and/or a projection on its outer surface that fits into the projection and/or recess. 5. In the vibration isolating member according to claim 1, 2, 3 or 4, when the vibration isolating member is formed by connecting two types of viscoelastic members in series along the direction of gravity, the one with higher viscosity and hardness A vibration isolating member characterized in that the lower viscoelastic member prevents the transmission of relatively high frequency vibrations, and the lower viscoelastic member prevents the transmission of relatively low frequency vibrations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20465389A JPH0369831A (en) | 1989-08-09 | 1989-08-09 | Vibration isolating member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20465389A JPH0369831A (en) | 1989-08-09 | 1989-08-09 | Vibration isolating member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0369831A true JPH0369831A (en) | 1991-03-26 |
Family
ID=16494058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20465389A Pending JPH0369831A (en) | 1989-08-09 | 1989-08-09 | Vibration isolating member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0369831A (en) |
-
1989
- 1989-08-09 JP JP20465389A patent/JPH0369831A/en active Pending
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