JPH1163059A - Vibration control equipment - Google Patents
Vibration control equipmentInfo
- Publication number
- JPH1163059A JPH1163059A JP22733697A JP22733697A JPH1163059A JP H1163059 A JPH1163059 A JP H1163059A JP 22733697 A JP22733697 A JP 22733697A JP 22733697 A JP22733697 A JP 22733697A JP H1163059 A JPH1163059 A JP H1163059A
- Authority
- JP
- Japan
- Prior art keywords
- inner cylinder
- bracket
- stopper
- elastic body
- shape
- 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
Landscapes
- Springs (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、振動発生部及び
振動受部の一方に連結される内筒と他方に連結される外
筒を兼ねるブラケットとを有し、内筒とブラケットとの
間に弾性体を設けるとともに、内部空間を液室とした液
入り防振装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has an inner cylinder connected to one of a vibration generating section and a vibration receiving section and a bracket serving as an outer cylinder connected to the other of the vibration generating section and the vibration receiving section. The present invention relates to a liquid-containing vibration isolator provided with an elastic body and having an internal space as a liquid chamber.
【0002】[0002]
【従来の技術】従来の液入り防振装置は、特開平8−1
52043号公報に記載のものが知られている。この装
置は、図4及び図5に示すように、振動発生部及び振動
受部の一方に連結される内筒1と他方に連結される外筒
を兼ねる樹脂製ブラケット2とを有し、内筒1とブラケ
ット2との間に弾性体3を設けるとともに、内部区間を
液室4としてある。内筒1には例えば図示しないエンジ
ンを搭載し、ブラケット2の取付部2Aは図示しない車
体へ固定し、ブラケット2の外筒部Bの内周面には弾性
体3の一部がその面を被覆するように設けてある。内筒
1と弾性体3とを一体化したもの(例えば内筒1にゴム
を加硫接着したもの)を金型内にセットして樹脂材料を
金型内に注入して弾性体3の周囲にブラケット2の外筒
部2Bを形成するとともに取付部2Aを形成する。合成
樹脂材料で成形されたブラケット2の外筒部2Bの一部
(図示する例では下端側)には開口部2Cを形成し、こ
の開口部2Cから液体及び液室4の形成に必要な部品を
封入及び挿入するとともに開口部2Cの周縁2Dに蓋部
5を密封して取付けてある。液室4を形成するに必要な
部品は、隔壁部材(オリフィス形成部材)6とダイヤフ
ラム7であり、隔壁部材6には制限通路8が形成してあ
る。この隔壁部材6の上下に液室が形成され、制限通路
8を介して封入された液体が2つの室を行き来する。隔
壁部材6のフランジ部6Aは開口部2Cの内周面に形成
された段部2Eに弾性体3の一部を挟むように当接さ
れ、ダイヤフラム7の周縁部はこのフランジ部6Aの片
面に当接される。蓋部5をブラケット2の外筒ブラケッ
ト2Bの開口部2Cの周縁2Dに取付けた際、段部2E
と蓋部5とで弾性体3の一部とフランジ部6A及びダイ
ヤフラム7の周縁を狭圧した状態となる。開口部2Cの
周縁2Dの外周面には溝2Fを形成してあり、この溝2
Fに対し蓋部5の外周縁をかしめ加工して蓋部5を密封
状態で外周部2Bに固定してある。また、ブラケット2
の外筒ブラケット2Bの上部には、図5に示すように断
面U字形をしたストッパ9を取付けてある。このストッ
パ9と外周部2Bの上面との間にはゴム板10を取付け
てある。内筒1が図1において下方に下がり過ぎた場
合、ストッパ9がこのゴム板10に当接してそれ以上の
効果が防止される。2. Description of the Related Art A conventional liquid-containing vibration isolator is disclosed in
The thing described in 52043 gazette is known. As shown in FIGS. 4 and 5, this device has an inner cylinder 1 connected to one of a vibration generator and a vibration receiver and a resin bracket 2 serving as an outer cylinder connected to the other. An elastic body 3 is provided between the cylinder 1 and the bracket 2, and an inner section is a liquid chamber 4. For example, an engine (not shown) is mounted on the inner cylinder 1, the mounting portion 2 A of the bracket 2 is fixed to a vehicle body (not shown), and a part of the elastic body 3 is provided on the inner peripheral surface of the outer cylinder portion B of the bracket 2. It is provided to cover. A body in which the inner cylinder 1 and the elastic body 3 are integrated (for example, one obtained by vulcanizing and bonding rubber to the inner cylinder 1) is set in a mold, and a resin material is injected into the mold to surround the elastic body 3. The outer cylindrical portion 2B of the bracket 2 is formed at the same time as the mounting portion 2A. An opening 2C is formed in a part (the lower end side in the illustrated example) of the outer cylindrical portion 2B of the bracket 2 formed of a synthetic resin material, and components necessary for forming the liquid and liquid chambers 4 from the opening 2C. And the lid 5 is hermetically attached to the periphery 2D of the opening 2C. The components required to form the liquid chamber 4 are a partition member (orifice forming member) 6 and a diaphragm 7, and a limiting passage 8 is formed in the partition member 6. Liquid chambers are formed above and below the partition member 6, and the sealed liquid flows between the two chambers via the restriction passage 8. The flange portion 6A of the partition member 6 is in contact with a step portion 2E formed on the inner peripheral surface of the opening 2C so as to sandwich a part of the elastic body 3, and the peripheral edge of the diaphragm 7 is provided on one surface of the flange portion 6A. Be abutted. When the lid 5 is attached to the peripheral edge 2D of the opening 2C of the outer cylinder bracket 2B of the bracket 2, the step 2E
The lid 5 and the part of the elastic body 3 and the peripheral edges of the flange 6A and the diaphragm 7 are in a state of being narrowly pressed. A groove 2F is formed on the outer peripheral surface of a peripheral edge 2D of the opening 2C.
The outer peripheral edge of the lid portion 5 is caulked with respect to F, and the lid portion 5 is fixed to the outer peripheral portion 2B in a sealed state. Also, bracket 2
A stopper 9 having a U-shaped cross section is attached to the upper part of the outer cylinder bracket 2B as shown in FIG. A rubber plate 10 is attached between the stopper 9 and the upper surface of the outer peripheral portion 2B. When the inner cylinder 1 is lowered too low in FIG. 1, the stopper 9 comes into contact with the rubber plate 10 to prevent further effects.
【0003】[0003]
【発明が解決しようとする課題】従来のストッパ9は、
内筒1やブラケット2とは別個の金具から成るものであ
り、しかもゴム板10も必要とし、部品点数並びに組立
工数の増加を免れないものであった。また、ブラケット
2の上部にスペースがとれない場合には、このようなス
トッパ9を取付けることができない。The conventional stopper 9 is as follows.
The inner cylinder 1 and the bracket 2 are made of metal fittings that are separate from each other, and also require a rubber plate 10, which inevitably increases the number of parts and the number of assembly steps. If there is not enough space above the bracket 2, such a stopper 9 cannot be attached.
【0004】そこで、この発明は、別体の金具であるス
トッパを廃止し、ブラケットに一体成形することにより
部品点数並びに組立工数を減少し、上部にスペースがと
れない場合でも内筒の変位規制を図れる防振装置を提供
することを目的とする。Therefore, the present invention eliminates the stopper, which is a separate metal fitting, and reduces the number of parts and the number of assembling steps by integrally forming the stopper with the bracket. It is an object of the present invention to provide a vibration isolator that can be achieved.
【0005】[0005]
【課題を解決するための手段】上述の目的を達成するた
め、この発明は、振動発生部及び振動受部の一方に連結
される内筒と他方に連結される外筒を兼ねるブラケット
とを有し、内筒とブラケットとの間に弾性体を設けると
ともに、内筒と弾性体とを一体としたものを金型内にセ
ットして樹脂材料を金型内に注入して弾性体の周囲に樹
脂製のブラケットを形成し、弾性体内部に液室を形成し
た防振装置において、ブラケット成形時に内筒が径方向
に所定変位量を超えて移動したときに内筒の両端側が衝
突する位置に存在するようにブラケットにストッパを一
体成形し、このストッパの内筒衝突部位の形状を内筒形
状に対応する形状に形成したものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises an inner cylinder connected to one of a vibration generator and a vibration receiver and a bracket serving as an outer cylinder connected to the other. Then, while providing an elastic body between the inner cylinder and the bracket, an integral body of the inner cylinder and the elastic body is set in a mold, and a resin material is injected into the mold to surround the elastic body. In a vibration isolator in which a resin-made bracket is formed and a liquid chamber is formed inside an elastic body, when the inner cylinder moves beyond a predetermined amount of displacement in the radial direction during bracket formation, a position where both ends of the inner cylinder collide with each other. A stopper is integrally formed on the bracket so as to be present, and the shape of the inner cylinder collision portion of the stopper is formed in a shape corresponding to the inner cylinder shape.
【0006】[0006]
【発明の実施の形態】以下に、この発明の好適な実施例
を図面を参照にして説明する。Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
【0007】図1に示す実施例においては、従来と同様
に振動発生部及び振動受部の一方に連結される内筒1
と、他方に連結される外筒2Bを兼ねる樹脂製ブラケッ
ト2とを有し、内筒1とブラケット2との間に弾性体3
を設けてある。ブラケット2の取付部2Aは図示しない
車体に固定し、内筒1には図示しないエンジンを搭載
し、ブラケット2の外筒部2Bの内周面には弾性体3の
一部がその面を被覆するように設けてある。内筒1と弾
性体3とを一体化したもの(たとえば内筒1にゴムを加
硫接着したもの)を金型内にセットして樹脂材料を金型
内に注入して弾性体3の周囲にブラケット2の外筒部2
Bを形成するとともに取付部2Aを形成する。ブラケッ
ト2の成形時に内筒1が径方向に所定変位量を超えて移
動したときに内筒1の両端側が衝突する位置に存在する
ようにブラケット2にストッパ20を一体成形してあ
る。このストッパ20に対する内筒1の衝突部位、すな
わち上面部20Aの形状を内筒1の形状に対応する形状
に形成してある。この上面部20Aを内筒1の形状に対
応する形状に形成することにより、内筒1と衝突すると
きに内筒1の外周面が均一に上面部20Aに当たるよう
になる。内筒1の両端側にも弾性体3が被覆してあるの
で、ストッパ20にはこの弾性体3が衝突することとな
る。この内筒1の両端側に被覆された弾性体3がストッ
パ20の上面部20Aに衝突するときにはその外周面が
均一に当たるので、面圧を低下させ、ストッパ20の耐
久性を向上させることができる。In the embodiment shown in FIG. 1, an inner cylinder 1 connected to one of a vibration generating portion and a vibration receiving portion as in the prior art.
And a resin bracket 2 serving also as an outer cylinder 2 </ b> B connected to the other, and an elastic body 3 is provided between the inner cylinder 1 and the bracket 2.
Is provided. The mounting portion 2A of the bracket 2 is fixed to a vehicle body (not shown), an engine (not shown) is mounted on the inner cylinder 1, and a part of the elastic body 3 covers the inner peripheral surface of the outer cylinder portion 2B of the bracket 2. It is provided to do. A body in which the inner cylinder 1 and the elastic body 3 are integrated (for example, one obtained by vulcanizing and bonding rubber to the inner cylinder 1) is set in a mold, and a resin material is injected into the mold to surround the elastic body 3. The outer cylinder part 2 of the bracket 2
B and the mounting portion 2A are formed. A stopper 20 is integrally formed with the bracket 2 so that when the inner cylinder 1 moves beyond a predetermined displacement amount in the radial direction when the bracket 2 is formed, both ends of the inner cylinder 1 are located at a position where they collide. The collision portion of the inner cylinder 1 against the stopper 20, that is, the shape of the upper surface portion 20A is formed in a shape corresponding to the shape of the inner cylinder 1. By forming the upper surface portion 20A into a shape corresponding to the shape of the inner cylinder 1, the outer peripheral surface of the inner cylinder 1 uniformly hits the upper surface portion 20A when colliding with the inner cylinder 1. Since the elastic body 3 is also coated on both end sides of the inner cylinder 1, the elastic body 3 collides with the stopper 20. When the elastic body 3 coated on both ends of the inner cylinder 1 collides with the upper surface portion 20A of the stopper 20, the outer peripheral surface thereof uniformly hits, so that the surface pressure can be reduced and the durability of the stopper 20 can be improved. .
【0008】図2は図1の側面図を示し、この図2にお
けるストッパ20の個所と弾性体3の関係を図3の部分
的拡大断面図に示す。ストッパ20が形成されたブラケ
ット20の内側で弾性体3の下端側が係合されている。
弾性体3とブラケット2とは接着されておらず、そのた
め弾性体3の自由な伸縮は確保され、変位規制をしなが
ら弾性体3の耐久性は保たれる。弾性体3の内部には液
室4が形成され、従来と同様に開口部2Cから液体及び
液室4の形成に必要な部品を封入及び挿入するとともに
ブラケット2の下端側に図示しない蓋部を取付けて液室
4内を密封するようになっている。FIG. 2 is a side view of FIG. 1, and a relationship between the stopper 20 and the elastic body 3 in FIG. 2 is shown in a partially enlarged sectional view of FIG. The lower end side of the elastic body 3 is engaged inside the bracket 20 in which the stopper 20 is formed.
The elastic body 3 and the bracket 2 are not adhered to each other, so that the elastic body 3 is freely expanded and contracted, and the durability of the elastic body 3 is maintained while controlling the displacement. A liquid chamber 4 is formed inside the elastic body 3. A liquid and a part necessary for forming the liquid chamber 4 are sealed and inserted from the opening 2 </ b> C as in the conventional case, and a lid (not shown) is provided on the lower end side of the bracket 2. The inside of the liquid chamber 4 is sealed by mounting.
【0009】[0009]
【発明の効果】以上説明したように、この発明では、ブ
ラケット成形時に内筒が径方向に所定変位量を超えて移
動したときに内筒の両端側が衝突する位置に存在するよ
うにブラケットにストッパを一体成形し、このストッパ
の内筒衝突部位の形状を内筒形状に対応する形状に形成
したので、ストッパとして別個の金具を用いる必要がな
いので部品点数並びに組立工数を減らすことができ、コ
ストダウンを図ることが可能である。また、内筒がスト
ッパに当たるとき、均一にストッパの上面部に当たるこ
ととなり、面圧を低下させてストッパの耐久性を向上さ
せることができる。さらにまた、従来のように金具を取
付けるようなスペースがない場合でも、この防振装置を
設けることができかつ変位規制を行うことができる。As described above, according to the present invention, the stopper is provided on the bracket such that both ends of the inner cylinder are located at the positions where both ends of the inner cylinder collide when the inner cylinder moves beyond a predetermined displacement amount in the radial direction during bracket formation. And the shape of the inner cylinder collision portion of the stopper is formed in a shape corresponding to the inner cylinder shape, so that it is not necessary to use a separate metal fitting as the stopper, so that the number of parts and the number of assembly steps can be reduced, and the cost can be reduced. It is possible to down. Further, when the inner cylinder hits the stopper, the inner cylinder hits the upper surface of the stopper uniformly, so that the surface pressure can be reduced and the durability of the stopper can be improved. Furthermore, even when there is no space for mounting a bracket as in the conventional case, this vibration isolator can be provided and displacement can be regulated.
【図1】この発明の好適な実施例を示す正面図。FIG. 1 is a front view showing a preferred embodiment of the present invention.
【図2】側面図。FIG. 2 is a side view.
【図3】弾性体とストッパの個所における拡大断面図。FIG. 3 is an enlarged cross-sectional view of a portion between an elastic body and a stopper.
【図4】従来例を示す正面断面図。FIG. 4 is a front sectional view showing a conventional example.
【図5】従来例の側断面図。FIG. 5 is a side sectional view of a conventional example.
1 内筒 2 ブラケット 2B 外筒 3 弾性体 20 ストッパ 20A 上面部 Reference Signs List 1 inner cylinder 2 bracket 2B outer cylinder 3 elastic body 20 stopper 20A upper surface
Claims (1)
れる内筒と他方に連結される外筒を兼ねるブラケットと
を有し、内筒とブラケットとの間に弾性体を設けるとと
もに、内筒と弾性体とを一体としたものを金型内にセッ
トして樹脂材料を金型内に注入して弾性体の周囲に樹脂
製のブラケットを形成し、弾性体内部に液室を形成した
防振装置において、 ブラケット成形時に内筒が径方向に所定変位量を超えて
移動したときに内筒の両端側が衝突する位置に存在する
ようにブラケットにストッパを一体成形し、 このストッパの内筒衝突部位の形状を内筒形状に対応す
る形状に形成したことを特徴とする防振装置。An inner cylinder connected to one of the vibration generator and the vibration receiver and a bracket serving as an outer cylinder connected to the other; an elastic body is provided between the inner cylinder and the bracket; An inner cylinder and an elastic body are integrated into a mold, a resin material is injected into the mold, a resin bracket is formed around the elastic body, and a liquid chamber is formed inside the elastic body. In the vibration damping device described above, a stopper is integrally formed on the bracket such that both ends of the inner cylinder are located at a position where both ends of the inner cylinder collide when the inner cylinder moves beyond a predetermined displacement amount in the radial direction during bracket formation. An anti-vibration device characterized in that the shape of the cylinder collision site is formed in a shape corresponding to the shape of the inner cylinder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22733697A JPH1163059A (en) | 1997-08-08 | 1997-08-08 | Vibration control equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22733697A JPH1163059A (en) | 1997-08-08 | 1997-08-08 | Vibration control equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1163059A true JPH1163059A (en) | 1999-03-05 |
Family
ID=16859221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22733697A Pending JPH1163059A (en) | 1997-08-08 | 1997-08-08 | Vibration control equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1163059A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9079378B2 (en) | 2009-03-31 | 2015-07-14 | Jx Nippon Mining & Metals Corporation | Electromagnetic shielding material and method of producing electromagnetic shielding material |
-
1997
- 1997-08-08 JP JP22733697A patent/JPH1163059A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9079378B2 (en) | 2009-03-31 | 2015-07-14 | Jx Nippon Mining & Metals Corporation | Electromagnetic shielding material and method of producing electromagnetic shielding material |
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