JPH0439438A - Vibration isolating structure in precision equipment or the like - Google Patents
Vibration isolating structure in precision equipment or the likeInfo
- Publication number
- JPH0439438A JPH0439438A JP14406290A JP14406290A JPH0439438A JP H0439438 A JPH0439438 A JP H0439438A JP 14406290 A JP14406290 A JP 14406290A JP 14406290 A JP14406290 A JP 14406290A JP H0439438 A JPH0439438 A JP H0439438A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- vibration absorber
- holding member
- fixed frame
- component
- 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.)
- Granted
Links
- 239000006096 absorbing agent Substances 0.000 claims abstract description 43
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 19
- 238000002955 isolation Methods 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 description 13
- 125000003342 alkenyl group Chemical group 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 7
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 7
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 6
- 125000004429 atom Chemical group 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052697 platinum Inorganic materials 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- -1 dimethylsiloxane Chemical class 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 125000000962 organic group Chemical group 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920005645 diorganopolysiloxane polymer Polymers 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 125000003709 fluoroalkyl group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229910003446 platinum oxide Inorganic materials 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 102220173701 rs142087529 Human genes 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
【発明の詳細な説明】
(発明の目的)
〈産業上の利用分野〉
本発明は例えばCDプレーヤー等の精密機器において、
精密部材が搭載される架台と固定枠との間の接続構造に
関するものである。[Detailed Description of the Invention] (Object of the Invention) <Industrial Application Field> The present invention is applicable to precision equipment such as CD players, etc.
The present invention relates to a connection structure between a pedestal on which a precision member is mounted and a fixed frame.
〈発明の背景〉
例えばCDプレーヤーでは、微妙な振動が音飛びの原因
となるため、固定枠と架台との相互の振動の伝達を遮断
する必要がある。そのため従来は第8図に示すように固
定枠たるシャシ4゜と架台3゛との間にバネ11°を設
ける他、架台3“に設けた保持部材9°と固定枠シャシ
4゛に設けた支持部13’との間に吸振体21“を設け
ていた。しかしながら吸振体21゛を第8図に示すよう
に単に支持部13°の回りにドーナツ状に設けた場合に
は、垂直方向の振動に対しては吸振効果は大きいが、水
平方向の振動に対してはそれほどの吸振効果が得られな
いという課題があった。<Background of the Invention> For example, in a CD player, subtle vibrations cause sound skipping, so it is necessary to block mutual transmission of vibrations between the fixed frame and the mount. Therefore, conventionally, as shown in Fig. 8, in addition to providing a spring 11° between the fixed frame chassis 4° and the pedestal 3", a spring 11° was provided between the holding member 9° provided on the pedestal 3" and the fixed frame chassis 4". A vibration absorber 21'' was provided between the support part 13'. However, if the vibration absorber 21' is simply provided in a donut shape around the support part 13° as shown in Figure 8, the vibration absorption effect is large against vertical vibrations, but it is not effective against horizontal vibrations. However, there was a problem in that the vibration absorption effect could not be obtained as much.
〈開発を試みた技術的事項〉
本発明はこのような背景に鑑みなされたものであって、
垂直方向のみならず水平方向の振動に対しても十分な吸
振効果が得られるようにした新規な精密機器等における
防振構造に関するものである。<Technical matters attempted to be developed> The present invention was made in view of the above background, and
The present invention relates to a vibration isolation structure for a new precision instrument, etc., which is able to obtain a sufficient vibration absorption effect not only in the vertical direction but also in the horizontal direction.
(発明の構成)
〈目的達成の手段〉
本出願に係る第一の発明たる精密機器等における防振構
造は、固定枠に設けた支持部と精密機器等を搭載する架
台に設けた保持部材との間に吸振体を設けることにより
、固定枠と架台との相互の振動伝達を遮断しながら固定
枠に対して架台を支持する構造において、前記吸振体を
カサ状に設けたことを特徴として成るものである。(Structure of the Invention) <Means for Achieving the Object> The vibration isolation structure for a precision instrument, etc., which is the first invention of this application, consists of a support part provided on a fixed frame and a holding member provided on a pedestal on which the precision instrument, etc. is mounted. A structure in which the pedestal is supported with respect to the fixed frame while blocking mutual vibration transmission between the fixed frame and the pedestal by providing a vibration absorber between them, characterized in that the vibration absorber is provided in the shape of an umbrella. It is something.
また本出願に係る第二の発明たる精密機器等における防
振構造は、前記要件に加えて前記吸振体はゲル状物質で
あることを特徴として成るものである。Further, the second invention of the present application, which is a vibration isolation structure for a precision instrument, is characterized in that, in addition to the above-mentioned requirements, the vibration absorber is a gel-like substance.
更に本出願に係る第三の発明たる精密機器等における防
振構造は、前記要件に加えて前記固定枠と前記架台との
間にバネ部材を設けたことを特徴として成るものである
。Further, the third invention of the present application, which is a vibration isolation structure for a precision instrument, is characterized in that, in addition to the above-mentioned requirements, a spring member is provided between the fixed frame and the pedestal.
これら発明によって前記目的を達成しようとするもので
ある。These inventions attempt to achieve the above object.
〈発明の作用〉
本発明にあっては、吸振体をカサ状に設けたから、水平
方向のみならず垂直方向の振動に対しても十分な吸振作
用が得られる。<Action of the Invention> In the present invention, since the vibration absorber is provided in the shape of an umbrella, a sufficient vibration absorption effect can be obtained not only for vibrations in the horizontal direction but also in the vertical direction.
〈実施例〉
以下本発明を図示の実施例に基づいて具体的に説明する
。符号1は本発明たる精密機器等における防振構造を適
用したCDプレーヤーの機構部を示すものであって、こ
の機構部1は精密機器である光学系ブロック2を搭載し
た架台3が固定枠たるシャシ4に取り付けられて成るも
のである。本発明はこの架台3とシャシ4との接続部5
に適用されることにより、架台3とシャシ4との間の振
動の伝達を防止するものである。以下この接続部5の具
体的な構造について第1〜3図に基づいて説明する。ま
ず架台3には三カ所に接続孔6が形成され、これら各接
続孔6には下面側に筒状の覆部7が形成されるとともに
、この覆部7の内側に接続孔6の下面側の周囲を縁どる
ように支承面8が形成される。<Examples> The present invention will be specifically described below based on illustrated examples. Reference numeral 1 indicates a mechanical part of a CD player to which the anti-vibration structure of precision equipment, etc., according to the present invention is applied, and in this mechanical part 1, a mount 3 on which an optical system block 2, which is a precision equipment, is mounted serves as a fixed frame. It is attached to the chassis 4. The present invention provides a connecting portion 5 between the frame 3 and the chassis 4.
This prevents transmission of vibration between the frame 3 and the chassis 4. The specific structure of this connecting portion 5 will be explained below based on FIGS. 1 to 3. First, connection holes 6 are formed in three places in the pedestal 3, and a cylindrical cover 7 is formed on the bottom side of each of these connection holes 6. A bearing surface 8 is formed so as to surround the periphery.
そしてこの支承面8の下方には接続孔6を延長するよう
に上部に縁部10を形成した円筒状の保持部材9が設け
られる。この保持部材9の外周面にはバネ11が外嵌め
され、バネ11の上端が保持部材9の縁部10に当接し
て固定される。一方、シャシ4には接続孔6と対応する
位置に雌ネジがきられた雌ネジ孔12が形成される。そ
してこの雌ネジ孔12の上部には支持部たる支持円筒1
3が設けられるとともに、ワッシャ14を介して支持円
筒13の上部から固定ネジ15を通し、雌ネジ孔12と
螺合することにより、シャシ4に支持円筒13が固定さ
れている。尚、支持円筒13には後述するように吸振体
が設けられるが、吸振体を設ける場合の作業を考慮して
支持円筒13は上下二つの部分から成る。以下、これら
上下の支持円筒13を区別する必要があるときには上側
を支持円筒13a、下側を支持円筒13bと定義して区
別する。A cylindrical holding member 9 having an edge 10 formed on its upper part is provided below the support surface 8 so as to extend the connection hole 6 . A spring 11 is fitted onto the outer peripheral surface of the holding member 9, and the upper end of the spring 11 abuts against and is fixed to the edge 10 of the holding member 9. On the other hand, a female threaded hole 12 is formed in the chassis 4 at a position corresponding to the connection hole 6. At the top of this female threaded hole 12 is a support cylinder 1 which is a support part.
3 is provided, and the support cylinder 13 is fixed to the chassis 4 by passing a fixing screw 15 through the upper part of the support cylinder 13 through a washer 14 and screwing it into the female screw hole 12. The support cylinder 13 is provided with a vibration absorber as described later, but in consideration of the work required to provide the vibration absorber, the support cylinder 13 consists of two parts, an upper and a lower part. Hereinafter, when it is necessary to distinguish between the upper and lower support cylinders 13, the upper side is defined as the support cylinder 13a, and the lower side is defined as the support cylinder 13b.
また下側の支持円筒13bの底部には保持部材16が一
体的に設けられ、この保持部材16に形成された二本の
爪部18がシャシ4に形成された差し込み孔19に差し
込まれて固定されるようになっている。更にこの保持部
材16の上部には、内側にテーパ状に形成された縁状の
環状部20が形成され、この環状部20にはバネ11の
下部が嵌まって固定されている。次にこのようにしてシ
ャシ4に固定された支持円筒13と架台3に設けた保持
部材9との間の防振構造について説明する。上側の支持
円筒13aの最下部と保持部材9の最下部との間には、
第1〜3図に示すようにゲル状物質から成る吸振体21
がカサ状に設けられる。このように吸振体21をカサ状
に設けることは本発明の特徴的な構成部分であって、こ
れにより架台3とシャシ4との間の垂直方向及び水平方
向の振動の伝達を防止することができるのである。尚こ
こで、吸振体21をカサ状に設けるとは、第4図に示す
ように吸振体21と支持円筒13との接合面13cと、
保持部材9と吸振体21との接合面9Cとを互いに上下
方向にずらすことにより。Further, a holding member 16 is integrally provided at the bottom of the lower support cylinder 13b, and two claws 18 formed on this holding member 16 are inserted into insertion holes 19 formed in the chassis 4 and fixed. It is now possible to do so. Furthermore, an edge-shaped annular part 20 tapered inward is formed on the upper part of this holding member 16, and the lower part of the spring 11 is fitted into and fixed to this annular part 20. Next, a vibration isolation structure between the support cylinder 13 fixed to the chassis 4 in this manner and the holding member 9 provided on the pedestal 3 will be explained. Between the lowest part of the upper support cylinder 13a and the lowest part of the holding member 9,
As shown in FIGS. 1 to 3, a vibration absorber 21 made of a gel-like substance
is provided in the form of an umbrella. Providing the vibration absorber 21 in an umbrella shape as described above is a characteristic component of the present invention, and thereby prevents the transmission of vibrations in the vertical and horizontal directions between the pedestal 3 and the chassis 4. It can be done. Here, providing the vibration absorber 21 in an umbrella shape means that the joint surface 13c between the vibration absorber 21 and the support cylinder 13, as shown in FIG.
By vertically shifting the joint surfaces 9C between the holding member 9 and the vibration absorber 21.
吸振体21が垂直方向又は水平方向に変形した場合に、
変形した部分の吸振体21a、21bが直接逃げること
のできる空間S1、S2を有するように吸振体21を設
けることをいう。即ち例えば本実施例では垂直方向の振
動に対しては、吸振体21aの部分が空間S、に逃げる
ことができ、−力水平方向の振動に対しては、吸振体2
1bの部分が空間S2に逃げることができる。When the vibration absorber 21 is deformed in the vertical or horizontal direction,
This means that the vibration absorber 21 is provided so that it has spaces S1 and S2 through which the deformed portions of the vibration absorber 21a and 21b can directly escape. That is, for example, in this embodiment, for vibrations in the vertical direction, the vibration absorber 21a can escape into the space S, and for vibrations in the horizontal direction, the vibration absorber 21a can escape into the space S.
The portion 1b can escape to the space S2.
また吸振体21をカサ状に設ける他の実施例としては、
第5図に示すように吸振体21と支持円筒13との接合
面13cが、保持部材9と吸振体21との接合面9Cよ
り下方にずれるようにしてもよい、尚このような形態で
は、垂直方向の振動は吸振体2またるゲル状物質の圧縮
により減衰されるため、必ずしも前記第1〜3図の吸振
体21のようには垂直方向の振動の減衰は期待できない
が、水平方向の振動については十分な振動減衰効果を有
するものである。ここで吸振体21を構成するゲル状物
質についテ説明する0本実施例に適用したゲル状物質は
具体的にシリコーンゲルである。このシリコーンゲルは
、ジメチルシロキサン成分単位からなるもので1次式H
で使用されるジオルガノポリシロキサン(以下A成分と
いう):
RR’2S IO(R22S I O) nS i R
’zR−・・・[1]
[ただし、Rはアルケニル基であり、R1は脂肪族不飽
和結合を有しない一価の炭化水素基であり、R2は一価
の脂肪族炭化水素基(R2のうち少なくとも50モル%
はメチル基であり、アルケニル基を有する場合にはその
含有率は10モル%以下である)であり、nはこの成分
の25°Cにおける粘度が100−100.000cS
tになるような数である]と、25°Cにおける粘度が
5000 cSt以下であり、1分子中に少なくとも3
個のSi原子に直接結合した水素原子を有するオルガノ
ハイドロジエンポリシロキサン(B成分)とからなり、
且つこのB成分中の81原子に直接結合している水素原
子の合計量に対するA成分中に含まれるアルケニル基の
合計量の比(モル比)が0.1〜2.0になるように調
整された混合物を硬化させることにより得られる付加反
応型シリコーンコポリマーである。このシリコーンゲル
についてさらに詳しく説明すると、上記A成分は直鎖状
の分子構造を有し、分子の両末端にあるアルケニル基R
がB成分中の81原子に直接結合した水素原子と付加し
て架橋構造を形成することができる化合物である。この
分子末端に存在するアルケニル基は、低級アルケニル基
であることが好ましく1反応性を考慮するとビニル基が
特に好ましい、また分子末端に存在するR+は、脂肪族
不飽和結合を有しない一価の炭化水素基であり、このよ
うな基の具体例としてはメチル基、プロピル基及びヘキ
シル基等のようなアルキル基、フェニル基並びにフロロ
アルキル基を挙げることができる。上記[11式におい
てR2は一価の脂肪族炭化水素であり、このような基の
具体的な例としては、メチル基プロピル基及びヘキシル
基等のようなアルキル基並びにビニル基のような低級ア
ルケニル基を挙げることができる。ただし、R2のうち
少なくとも50モル%はメチル基であ” 、R2がアル
ケニル基である場合には、アルケニル基は10モル%以
下の量であることが好ましい、アルケニル基の量が10
モル%を越えると架橋密度が高くなり過ぎて高粘度にな
りゃすい。またDはこのA成分の25°Cにおける粘度
が通常は100〜100.000c S t 、好まし
くは200−20,000c S tの範囲内になるよ
うに設定される。上記のB成分は、A成分の架橋剤であ
りSi原子に直接結合した水素原子がA成分中のアルケ
ニル基と付加してA成分を硬化させる。B成分は上記の
ような作用を有していればよく、B成分としては直鎖状
2分岐した鎖状、環状、あるいは網目状などの種々の分
子構造のものが使用できる。また、B成分中のSi原子
には水素原子の他、有機基が結合し、ており、この有機
基は通常はメチル基のような低級アルキル基である。さ
らに、B成分の25°Cにおける粘度は通常は5000
c 8を以下、好ましくは500cSt以下である。Further, as another embodiment in which the vibration absorber 21 is provided in an umbrella shape,
As shown in FIG. 5, the joint surface 13c between the vibration absorber 21 and the support cylinder 13 may be shifted downward from the joint surface 9C between the holding member 9 and the vibration absorber 21. In such a configuration, Vertical vibrations are attenuated by the compression of the gel material in the vibration absorber 2, so it is not necessarily expected to attenuate vertical vibrations like the vibration absorber 21 shown in Figures 1 to 3 above. Regarding vibrations, it has a sufficient vibration damping effect. The gel-like material constituting the vibration absorber 21 will now be explained. Specifically, the gel-like material used in this embodiment is silicone gel. This silicone gel is composed of dimethylsiloxane component units and has the linear formula H
Diorganopolysiloxane used in (hereinafter referred to as component A): RR'2S IO (R22S IO) nS i R
'zR-...[1] [However, R is an alkenyl group, R1 is a monovalent hydrocarbon group having no aliphatic unsaturated bond, and R2 is a monovalent aliphatic hydrocarbon group (R2 at least 50 mol% of
is a methyl group, and if it has an alkenyl group, its content is 10 mol% or less), and n is the viscosity of this component at 25°C of 100-100.000 cS.
t], the viscosity at 25°C is 5000 cSt or less, and there are at least 3
organohydrodiene polysiloxane (component B) having a hydrogen atom directly bonded to six Si atoms,
And the ratio (molar ratio) of the total amount of alkenyl groups contained in component A to the total amount of hydrogen atoms directly bonded to the 81 atoms in component B is adjusted to be 0.1 to 2.0. This is an addition reaction type silicone copolymer obtained by curing a mixture of To explain this silicone gel in more detail, component A has a linear molecular structure, and alkenyl groups R at both ends of the molecule.
is a compound that can form a crosslinked structure by adding with the hydrogen atom directly bonded to the 81 atom in component B. The alkenyl group present at the end of the molecule is preferably a lower alkenyl group, and a vinyl group is particularly preferred in consideration of reactivity. It is a hydrocarbon group, and specific examples of such groups include alkyl groups such as methyl, propyl, and hexyl groups, phenyl groups, and fluoroalkyl groups. In the above [Formula 11], R2 is a monovalent aliphatic hydrocarbon, and specific examples of such groups include alkyl groups such as methyl, propyl, and hexyl groups, and lower alkenyl groups such as vinyl groups. The following groups can be mentioned. However, at least 50 mol% of R2 is a methyl group, and when R2 is an alkenyl group, the amount of the alkenyl group is preferably 10 mol% or less, and the amount of the alkenyl group is 10 mol% or less.
If it exceeds mol%, the crosslinking density becomes too high and the viscosity tends to become high. Further, D is set so that the viscosity of this component A at 25°C is usually in the range of 100 to 100.000 cSt, preferably 200 to 20,000cSt. The above component B is a crosslinking agent for component A, and hydrogen atoms directly bonded to Si atoms add to the alkenyl group in component A to harden component A. It is sufficient that the B component has the above-mentioned effect, and the B component can have various molecular structures such as a linear bibranched chain, a ring, or a network. Further, in addition to a hydrogen atom, an organic group is bonded to the Si atom in component B, and this organic group is usually a lower alkyl group such as a methyl group. Furthermore, the viscosity of component B at 25°C is usually 5000
c8 or less, preferably 500 cSt or less.
この上うなり成分の例としては、分子両末端がトリオル
ガノシロキサン基で封鎖されたオルガノハイドロジエン
シロキサン、ジオルガノシロキサンとオルガノハイドロ
ジエンシロキサンとの共重合体、テトラオルガノテトラ
ハイドロジエンシクロテトラシロキサン、HR’2s
l 0 1/2単位と5i04/2単位とからなる共重
合体シロキサン、及びHR”。5i01/2単位とR’
3Si01/2単3Sii04/2単位とからなる共重
合体シロキサンを挙げることができる。ただし上記式に
おいてR1は前記と同じ意味である。そして上記のB成
分中のSiに直接結合している水素・原子の合計モル量
に対するA成分中のアルケニル基の合計モル量との比率
が通常は0.1〜2.0、好ましくは0.1〜1.0の
範囲内になるようにA成分とB成分とを混合して硬化さ
せることにより製造される。この場合の硬化反応は、通
常は触媒を用いて行なわれる。ここで使用される触媒と
しては、白金系触媒が好適であり、この例としては微粉
砕元素状白金、塩化白金酸、酸化白金、白金とオレフィ
ンとの錯塩、白金アルコラード及び塩化白金酸とビニル
シロキ酸との錯塩を挙げることができる。このような錯
塩はA成分とB成分との合計重量に対して通常はO8i
ppm(白金換算量、以下同様)以上、好ましくは0.
5ppm以上の量で使用される。このような触媒の量の
上限については特に制限はないが、例えば触媒が液状で
ある場合、あるいは溶液として使用することができる場
合には200p pm以下の量で十分である。Examples of the above-mentioned components include organohydrodienesiloxane in which both molecular ends are capped with triorganosiloxane groups, copolymers of diorganosiloxane and organohydrogensiloxane, tetraorganotetrahydrodienecyclotetrasiloxane, HR '2s
A copolymer siloxane consisting of l 0 1/2 units and 5i04/2 units, and HR".5i01/2 units and R'
A copolymer siloxane consisting of 3Si01/2 and 3Si04/2 units can be mentioned. However, in the above formula, R1 has the same meaning as above. The ratio of the total molar amount of alkenyl groups in component A to the total molar amount of hydrogen/atoms directly bonded to Si in component B is usually 0.1 to 2.0, preferably 0. It is manufactured by mixing and curing component A and component B so that the ratio falls within the range of 1 to 1.0. The curing reaction in this case is usually carried out using a catalyst. The catalyst used here is preferably a platinum-based catalyst, examples of which include finely ground elemental platinum, chloroplatinic acid, platinum oxide, complex salts of platinum and olefins, platinum alcoholade, and chloroplatinic acid and vinylsiloxic acid. Examples include complex salts with. Such complex salts usually have O8i based on the total weight of component A and component B.
ppm (in terms of platinum, the same applies hereinafter) or more, preferably 0.
It is used in an amount of 5 ppm or more. There is no particular restriction on the upper limit of the amount of such catalyst, but for example, when the catalyst is in liquid form or can be used as a solution, an amount of 200 ppm or less is sufficient.
上記のようなA成分、B成分及び触媒を混合し、室温に
放置するか、あるいは加熱することにより硬化して本発
明で使用されるシリコーンゲルが生成する。このように
して得られたシリコーンゲルは、 JIS K(K−2
207−198050g荷重)で測定した針入度が通常
5〜250度を有する。このようなシリコーンゲルの硬
度は、上記A成分の量をB成分中のSiに直接結合して
いる水素原子と架橋構造を形成することができる。また
他の方法として両末端がメチル基であるシリコーンオイ
ルを、得られるシリコーンゲルに対して5〜75重量%
の範囲内の量であらかじめ添加することにより調整する
ことができる。シリコーンゲルは上記のようにして調整
することもできるし、また市販されているものを使用す
ることもできる。本発明で使用することができる市販品
の例としては、CF3027、TOUGH−3、TOU
GH−4,TOUGH−5,T。Component A, component B, and catalyst as described above are mixed and allowed to stand at room temperature or are cured by heating to produce the silicone gel used in the present invention. The silicone gel thus obtained is JIS K (K-2
The penetration, measured at 207-198050g load), usually has a range of 5 to 250 degrees. Such a hardness of the silicone gel allows the amount of the above-mentioned A component to form a crosslinked structure with the hydrogen atoms directly bonded to Si in the B component. In another method, silicone oil having methyl groups at both ends is added in an amount of 5 to 75% by weight based on the resulting silicone gel.
It can be adjusted by adding in advance an amount within the range of . The silicone gel can be prepared as described above, or a commercially available silicone gel can also be used. Examples of commercially available products that can be used in the present invention include CF3027, TOUGH-3, TOU
GH-4, TOUGH-5, T.
UGH−6()−レ・ダウコーニングシリコーン社製)
やX32−902/cat 1300 (信越化学工業
株式会社製)、F25O−121(日本ユニカ株式会社
製)等を挙げることができる。尚、上記のA成分、B成
分及び触媒の他に、顔料、硬化遅延剤、難燃剤、充填剤
等をジノコーンゲルの特性を損なわない範囲内で配合す
ることもでき、また微小中空球体のフィラーを混入して
なるシリコーンゲルを用いてもよく、このような材料に
日本フィライト株式会社製造のフィライト(登録商標)
や同社販売のエクスパンセル(登録商標)等が例示でき
る。尚、実施例では針入度を220に調整したものを用
いた。UGH-6 ()-manufactured by Dow Corning Silicone Company)
, X32-902/cat 1300 (manufactured by Shin-Etsu Chemical Co., Ltd.), F25O-121 (manufactured by Nippon Unica Co., Ltd.), and the like. In addition to the above A component, B component and catalyst, pigments, curing retardants, flame retardants, fillers, etc. can also be blended within a range that does not impair the properties of the dinocone gel. A silicone gel formed by mixing may also be used, and in such a material, Phyllite (registered trademark) manufactured by Nippon Phyllite Co., Ltd.
Examples include Expancel (registered trademark) sold by the same company. In addition, in the examples, one whose penetration was adjusted to 220 was used.
本発明たる精密機器等における防振構造は以上のように
、吸振体21と支持円筒13との接合面13cと、保持
部材9と吸振体21との接合面9cとを互いに上下方向
にずらして垂直方向及び水平方向の振動をともに減衰さ
せることに特徴を有するものであり、前記実施例は従来
この種のCDプレーヤーに用いられている既存仕様に本
発明を適用したものであるが、このような制約がない場
合においては本発明の基本的な構造を変えずに他の部分
について種々の形態を採り得るものである0例えば第6
図に示すものは前記実施例をよりシンプルにしたもので
あって、シャシ4に支持部たる支持円筒13を形成し、
その回りに下部に縁部23を形成した円筒状の補助円筒
24を設け、一方架台3には接続孔6を形成し、この接
続孔6に対して上部に縁部10を形成した円筒状の保持
部材9を設け、補助円筒24と保持部材9との間にゲル
状物質から成る吸振体21をカサ状に設けたものである
。また保持部材9の回りにはバネ11が設けられ、その
下部が前記補助円筒24における縁部23内に支持され
ている。因みにこのような構造とすれば、支持円筒13
がシャシ4と一体であるため安定性が良く5また支持円
筒13に補助円筒24を設けたから保持部材9との間に
吸振体21をカサ状に設ける作業を行ないやすい。また
本実施例では架台3と支持円筒13との間に防音部材2
5を設ける。因みにこの防音部材25は、架台3上に設
けたモータ等の音発生源からの音の振動を吸収して防音
作用をなすものである。尚、このような防音部材25の
材質としては、前記ゲル状物質を適用することができる
。As described above, the vibration isolation structure for precision instruments and the like according to the present invention is constructed by vertically shifting the joint surface 13c between the vibration absorber 21 and the support cylinder 13 and the joint surface 9c between the holding member 9 and the vibration absorber 21. It is characterized by damping vibrations in both the vertical and horizontal directions, and the embodiment described above is an application of the present invention to the existing specifications conventionally used in this type of CD player. In the case where there are no restrictions, other parts of the present invention may take various forms without changing the basic structure of the present invention.
The one shown in the figure is a simpler version of the embodiment described above, in which a support cylinder 13 serving as a support part is formed on the chassis 4,
A cylindrical auxiliary cylinder 24 with an edge 23 formed on the lower part is provided around it, and a connecting hole 6 is formed in the pedestal 3, and a cylindrical auxiliary cylinder 24 with an edge 10 formed on the upper part of the connecting hole 6 is provided around it. A holding member 9 is provided, and a vibration absorber 21 made of a gel-like substance is provided between the auxiliary cylinder 24 and the holding member 9 in the form of an umbrella. Further, a spring 11 is provided around the holding member 9, and a lower portion of the spring 11 is supported within the edge 23 of the auxiliary cylinder 24. Incidentally, if such a structure is used, the support cylinder 13
Since it is integrated with the chassis 4, stability is good, and since the support cylinder 13 is provided with an auxiliary cylinder 24, it is easy to install the vibration absorber 21 in an umbrella shape between the support cylinder 13 and the holding member 9. Further, in this embodiment, a soundproof member 2 is provided between the pedestal 3 and the support cylinder 13.
5 will be provided. Incidentally, this soundproofing member 25 has a soundproofing effect by absorbing sound vibrations from a sound source such as a motor provided on the pedestal 3. Note that the above-mentioned gel-like substance can be used as a material for such a soundproofing member 25.
更に他の実施例として第7図に示すようにバネを複合的
に設けた構造をとることもできる。Furthermore, as another embodiment, a structure in which multiple springs are provided as shown in FIG. 7 can be adopted.
即ち架台3に形成した接続孔6の下側に円筒状の保持部
材9を設け、一方この保持部材9の下方には保持部材9
よりその径寸法がひと回り大きい有底円筒状の中間支持
部材26を設ける。That is, a cylindrical holding member 9 is provided below the connection hole 6 formed in the pedestal 3, while a holding member 9 is provided below this holding member 9.
An intermediate support member 26 having a bottomed cylindrical shape and having a slightly larger diameter is provided.
そして中間支持部材26の中央に形成された支持部たる
支持円筒13と保持部材9との間にゲル状物質から成る
吸振体21をカサ状に設けるとともに、保持部材9の上
部に形成された縁部10と中間支持部材26の内部とに
それぞれその上端と下端とが支持されるようにしてバネ
11を設け、更に中間支持部材26に形成された縁部2
7と固定枠たるシャシ4との間にそれぞれその上端と下
端とが支持されるようにしてバネllaを設ける。因み
にこのような構造ではバネが複合的に設けられるがら、
吸振体21と相まって一層効果的な吸振作用をなすもの
である。A vibration absorber 21 made of a gel-like substance is provided in an umbrella shape between the support cylinder 13 which is a support portion formed at the center of the intermediate support member 26 and the holding member 9, and an edge formed on the upper part of the holding member 9 is provided. A spring 11 is provided inside the portion 10 and the intermediate support member 26 so that its upper and lower ends are supported, respectively, and an edge portion 2 formed on the intermediate support member 26 is provided.
A spring lla is provided between the spring 7 and the chassis 4, which is a fixed frame, so that its upper end and lower end are respectively supported. Incidentally, although such a structure has multiple springs,
In combination with the vibration absorber 21, this provides an even more effective vibration absorbing effect.
本発明たる精密機器等における防振構造は以上のような
構造を有するものであって、例えば外部で発生した振動
がシャシ4に伝わってきた場合には、その振動は吸振体
21に吸収されて精密機器を搭載する架台3の振動を防
止する。The vibration isolation structure for precision instruments and the like according to the present invention has the above structure. For example, when vibrations generated externally are transmitted to the chassis 4, the vibrations are absorbed by the vibration absorber 21. To prevent vibration of the pedestal 3 on which precision equipment is mounted.
(発明の効果)
本発明にあっては、吸振体21をカサ状に設けたから、
水平方向と垂直方向のいずれの振動に対しても十分な吸
振作用があり、このような構造を精密機器に適用すれば
、例えばCDプレーヤーでは振動による音飛びを一層減
少させることができ、また精密機器の振動による故障を
回避することができる。(Effect of the invention) In the present invention, since the vibration absorber 21 is provided in an umbrella shape,
It has a sufficient vibration absorbing effect against both horizontal and vertical vibrations, and if this type of structure is applied to precision equipment, for example, CD players can further reduce sound skipping due to vibrations. Failures caused by equipment vibration can be avoided.
第1図は本発明の防振構造をCDプレーヤーの機構部に
通用した実施例を示す斜視図、第2図は同上要部を拡大
して示す分解斜視図、第3図は同上縦断面図、第4図は
吸振体に作用する力の方向と吸振体の変形状態との関係
を示す説明図、第5図は吸振体の設置形態を異ならせた
他の実施例を示す縦断面図、第6図は同上他の実施例を
示す縦断面図2第7図は同上更に他の実施例を示す縦断
面図、第8図は従来の防振構造を示す縦断面図である。
1;機構部
2;光学系ブロック
3;架台
4;シャシ(固定枠たる)
5;接続部
6;接続孔
7;覆部
8;支承面
9;保持部材
9C;接合面
0;縁部
1、lla;バネ
2;雌ネジ孔
3.13a、13b ;支持円筒
3C;接合面
4;ワッシャ
5;固定ネジ
6;保持部材
8;爪部
9:差し込み孔
O・環状部
1・吸振体
3・縁部
4・補助円筒
5・防音部材
6・中間支持部材
7・縁部
1、S2;空間
屁す
第5図
I5
り
第6図
り
第7図
第8図Fig. 1 is a perspective view showing an embodiment in which the vibration isolation structure of the present invention is applied to the mechanical part of a CD player, Fig. 2 is an exploded perspective view showing the main parts of the same on an enlarged scale, and Fig. 3 is a longitudinal sectional view of the same. , FIG. 4 is an explanatory diagram showing the relationship between the direction of the force acting on the vibration absorber and the deformation state of the vibration absorber, and FIG. 5 is a longitudinal sectional view showing another embodiment in which the vibration absorber is installed in a different manner. FIG. 6 is a vertical sectional view showing another embodiment of the same as the above. FIG. 7 is a longitudinal sectional view of another embodiment of the same. FIG. 8 is a longitudinal sectional view of a conventional vibration isolation structure. 1; mechanism part 2; optical system block 3; pedestal 4; chassis (fixed frame) 5; connection part 6; connection hole 7; cover part 8; support surface 9; holding member 9C; joint surface 0; edge 1; lla; Spring 2; Female screw holes 3.13a, 13b; Support cylinder 3C; Joint surface 4; Washer 5; Fixing screw 6; Holding member 8; Claw portion 9: Insertion hole O, annular portion 1, vibration absorber 3, edge Part 4, auxiliary cylinder 5, soundproofing member 6, intermediate support member 7, edge 1, S2;
Claims (3)
台に設けた保持部材との間に吸振体を設けることにより
、固定枠と架台との相互の振動伝達を遮断しながら固定
枠に対して架台を支持する構造において、前記吸振体を
カサ状に設けたことを特徴とする精密機器等における防
振構造。(1) By providing a vibration absorber between the support part provided on the fixed frame and the holding member provided on the pedestal on which precision equipment is mounted, the fixed frame can be fixed while blocking mutual vibration transmission between the fixed frame and the pedestal. A vibration isolation structure for a precision instrument, etc., characterized in that the vibration absorber is provided in the shape of an umbrella in a structure for supporting a frame against a frame.
請求項1記載の精密機器等における防振構造。(2) The vibration isolation structure for a precision instrument or the like according to claim 1, wherein the vibration absorber is a gel-like substance.
ことを特徴とする請求項1または2記載の精密機器等に
おける防振構造。(3) The vibration isolation structure for a precision instrument or the like according to claim 1 or 2, characterized in that a spring member is provided between the fixed frame and the pedestal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14406290A JP2967232B2 (en) | 1990-06-01 | 1990-06-01 | Anti-vibration structure for precision equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14406290A JP2967232B2 (en) | 1990-06-01 | 1990-06-01 | Anti-vibration structure for precision equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0439438A true JPH0439438A (en) | 1992-02-10 |
JP2967232B2 JP2967232B2 (en) | 1999-10-25 |
Family
ID=15353422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14406290A Expired - Fee Related JP2967232B2 (en) | 1990-06-01 | 1990-06-01 | Anti-vibration structure for precision equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2967232B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06202833A (en) * | 1993-01-06 | 1994-07-22 | Sony Corp | Remote control system |
JPH0677093U (en) * | 1993-03-31 | 1994-10-28 | アイワ株式会社 | Anti-vibration device |
JP2001101758A (en) * | 1999-09-29 | 2001-04-13 | Sony Corp | Disk recording and/or reproducing device |
US7316024B2 (en) * | 2003-09-19 | 2008-01-01 | Lite-On It Corporation | Cushion assembly for absorbing vibration of a disc drive |
-
1990
- 1990-06-01 JP JP14406290A patent/JP2967232B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06202833A (en) * | 1993-01-06 | 1994-07-22 | Sony Corp | Remote control system |
JPH0677093U (en) * | 1993-03-31 | 1994-10-28 | アイワ株式会社 | Anti-vibration device |
JP2001101758A (en) * | 1999-09-29 | 2001-04-13 | Sony Corp | Disk recording and/or reproducing device |
US7316024B2 (en) * | 2003-09-19 | 2008-01-01 | Lite-On It Corporation | Cushion assembly for absorbing vibration of a disc drive |
Also Published As
Publication number | Publication date |
---|---|
JP2967232B2 (en) | 1999-10-25 |
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