JPS5924294B2 - Anti-vibration support - Google Patents
Anti-vibration supportInfo
- Publication number
- JPS5924294B2 JPS5924294B2 JP3667179A JP3667179A JPS5924294B2 JP S5924294 B2 JPS5924294 B2 JP S5924294B2 JP 3667179 A JP3667179 A JP 3667179A JP 3667179 A JP3667179 A JP 3667179A JP S5924294 B2 JPS5924294 B2 JP S5924294B2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- enclosure
- small hole
- cylindrical body
- rubber elastic
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Description
【発明の詳細な説明】
本発明はエンジンマウントのような防振支持体に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to anti-vibration supports such as engine mounts.
更に詳しくは、これにストッパー効果を具備せしめた防
振支持体に関する。More specifically, the present invention relates to a vibration-proof support provided with a stopper effect.
ゴムブロックを２個の取付金具の間に介在させた周知の
防振支持体では、ゴムの損失係数が小さいので、減衰係
数が小さい。In the well-known anti-vibration support in which a rubber block is interposed between two mounting fittings, the loss coefficient of rubber is small, so the damping coefficient is small.
エンジンマウントとしては低周波域（１５Ｈｚ近辺）で
の減衰係数が大きく、高周波域（１００Ｈｚ近辺）での
動的バネ定数が小さいことが要求される。Engine mounts are required to have a large damping coefficient in the low frequency range (near 15 Hz) and a small dynamic spring constant in the high frequency range (near 100 Hz).
このような要求に応するために、ゴムの弾性と流体の流
通抵抗を利用した弾性支持体が、特公昭４８−３６１５
１号公報及び特公昭５２−１６５５４号公報により提案
されている。In order to meet these demands, an elastic support that utilizes the elasticity of rubber and the flow resistance of fluid was developed in Japanese Patent Publication No. 48-3615.
This method has been proposed in Japanese Patent Publication No. 1 and Japanese Patent Publication No. 52-16554.
しかしこの弾性支持体では連絡通路で接続され流体を満
した二つの室は、内外の剛固な金属筒で大部分を囲まれ
ており、振動のストロークに対するゴム部分の容積変化
が比較的に小さく、このために流体の流通量が小さく、
流通抵抗を自由にとることが困難である。However, in this elastic support, the two chambers, which are connected by a communication passage and filled with fluid, are mostly surrounded by inner and outer rigid metal cylinders, and the volume change of the rubber part due to the vibration stroke is relatively small. , because of this, the flow rate of fluid is small,
It is difficult to take distribution resistance freely.
また流体を満した二つの室を囲むゴム部分はどの部分も
荷重支持体として利用しているので変形しにくく流体の
流通を抑制する。In addition, any part of the rubber surrounding the two chambers filled with fluid is used as a load support, so it is difficult to deform and suppresses the flow of fluid.
従ってこの面からも流体の流通抵抗が充分利用できない
欠点がある。Therefore, from this point of view as well, there is a drawback that the fluid flow resistance cannot be fully utilized.
以上の問題点に鑑み、この問題点の解決を計るべく、ゴ
ム弾性体からなる肉厚の筒体の両端に、この筒体の端部
を閉じる取付金具を一体に設け、少なくとも一方の取付
金具には前記筒体内より外側に連通せしめる小孔と、こ
の小孔から離し少なくとも一部がゴム弾性体からなるシ
ート状部を有する囲いを一体に形成し、前記小孔を介し
て連通ずる前記筒体内及び囲い内に流体を封入し、前記
筒体が筒体軸方向に圧縮されるとき外方への変形を抑制
する部材を設けた防振支持体が提案された。In view of the above problems, in order to solve this problem, mounting brackets that close the ends of the cylinder body are integrally provided at both ends of a thick cylindrical body made of a rubber elastic body, and at least one of the mounting brackets A small hole communicating from the inside of the cylinder to the outside, and an enclosure separated from the small hole and having a sheet-like part at least partially made of a rubber elastic body are integrally formed, and the cylinder communicates with the outside through the small hole. A vibration-proofing support has been proposed that includes a member that seals a fluid inside the body and an enclosure and suppresses outward deformation when the cylinder is compressed in the axial direction of the cylinder.
これを図面に従い説明すれば、第１図において１はゴム
弾性体からなる円筒状の肉厚の筒体である。This will be explained with reference to the drawings. In FIG. 1, reference numeral 1 denotes a thick cylindrical body made of a rubber elastic body.
筒体１の一端には筒体１の端部を閉じるように取付部２
ａを有する取付金具２が一体に設けられ、筒体１の他端
には、同じく取付部３ａを有する取付金具３が筒体１の
端部を閉じるように一体に設けである。A mounting part 2 is attached to one end of the cylinder 1 so as to close the end of the cylinder 1.
A mounting bracket 2 having a mounting portion 3a is integrally provided at the other end of the cylinder 1, and a mounting bracket 3 having a mounting portion 3a is integrally provided at the other end of the cylinder 1 so as to close the end of the cylinder 1.
取付金具３には筒体１の内部１ａから外側に連通せしめ
る小孔４が設けである。The mounting bracket 3 is provided with a small hole 4 that communicates from the inside 1a of the cylindrical body 1 to the outside.
取付金具３の筒体１に対し反対側には、小孔４から離し
、一部がシート状部５をなすゴム弾性体からなる囲い６
が小孔４の外面に室５ａを形成するように取付金具３に
一体に形成されている。On the opposite side of the mounting bracket 3 to the cylindrical body 1, there is a enclosure 6 made of a rubber elastic body, which is spaced apart from the small hole 4 and partially forms a sheet-like portion 5.
is formed integrally with the mounting bracket 3 so as to form a chamber 5a on the outer surface of the small hole 4.
また筒体１の中央部分を囲むように、繊維あるいは薄金
属板からなる帯状バンド７が筒体１の外周に嵌着しであ
る。Further, a band 7 made of fiber or a thin metal plate is fitted around the outer periphery of the cylinder 1 so as to surround the central portion of the cylinder 1.
そして筒体１の内部１ａ及び室５ａに水などの流体を封
入したものである。A fluid such as water is sealed in the interior 1a and chamber 5a of the cylindrical body 1.
第２図は他の例を示したもので、筒体１の両端は外方に
向って傾斜した円錐面に形成され、取付金具２及び３の
筒体１き接する部分を筒体１の両端と一致する内方に向
って傾斜した円錐面２ｂ。FIG. 2 shows another example in which both ends of the cylinder 1 are formed into outwardly inclined conical surfaces, and the parts of the mounting brackets 2 and 3 that touch the cylinder 1 are connected to both ends of the cylinder 1. The inwardly inclined conical surface 2b coincides with the inwardly inclined conical surface 2b.
３ｂとしたもので、これ以外は第１図に示したものとほ
ぼ同様である。3b, and the rest is almost the same as that shown in FIG.
上記の例において、取付金具２，３を接近せしめるよう
に外力Ｐが働き、筒体１が筒体軸方向に鎖線Ｓまで圧縮
されるとき、図のように帯状バンド７や円錐面２ｂ 、
３ｂがないときは、筒体１は内外に自由に変形するが、
これらがあることによって外方への変形が抑制され、湾
曲した鎖線で第１図、第２図に示すように主として内部
に向って変形し、筒体１の内部１ａの容積を大きく縮小
できる。In the above example, when the external force P acts to bring the fittings 2 and 3 closer together and the cylinder 1 is compressed to the chain line S in the cylinder axis direction, the belt-like band 7 and the conical surface 2b,
When 3b is not present, the cylindrical body 1 can freely deform inwardly and outwardly, but
Due to these, outward deformation is suppressed and deformation is mainly inward as shown in curved chain lines in FIGS. 1 and 2, so that the volume of the interior 1a of the cylindrical body 1 can be greatly reduced.
また内部１ａの容積の縮小に伴って内部１ａの流体は小
孔４を通って室５ａに流入するが、室５ａの壁は外力Ｐ
とは無関係に変形しうるゴム弾性体からなるシート状部
５が設けられているため、シート状部５が小孔４を通っ
て室５ａに流入する流体の圧力に応じて室５ａの容積を
増大できるように変形するので、内部１ａから小孔４外
への流体の流出ならびに内部１ａへの流体の流入を容易
に行なわせうる。Further, as the volume of the interior 1a decreases, the fluid in the interior 1a flows into the chamber 5a through the small hole 4, but the wall of the chamber 5a is
Since the sheet-like part 5 made of a rubber elastic body that can be deformed independently of Since it is deformed so that it can increase in size, fluid can easily flow out of the small hole 4 from the interior 1a and flow into the interior 1a.
なお小孔４及び囲い６は取付金具２側にも設けてもよい
ことは勿論である。It goes without saying that the small hole 4 and the enclosure 6 may also be provided on the mounting bracket 2 side.
従ってこれらによれば、小孔４を通過する流体の流通抵
抗を任意に設計しうる防振支持体をうろことができ、低
周波域での減衰係数が従来に比し格段に大きな防振支持
体が提供できる。Therefore, according to these, it is possible to move around the anti-vibration support whose flow resistance of the fluid passing through the small hole 4 can be designed arbitrarily, and the damping coefficient in the low frequency range is much larger than that of the conventional anti-vibration support. The body can provide.
しかしながら、このものの欠点は、外力Ｐが過大となっ
たとき、筒体１の内部１ａの容積が極小となると共に小
孔４を通って室５ａに流入した流体は、室５ａを形成す
る。However, the drawback of this is that when the external force P becomes excessive, the volume of the interior 1a of the cylindrical body 1 becomes minimal, and the fluid that flows into the chamber 5a through the small hole 4 forms the chamber 5a.
少くとも一部がゴム弾性体からなるシート状部５を有す
る囲い６であることによって際限なく流入し、筒体１は
大きく膨らみ、防振支持体として不安定であり、又囲い
６も著しく大きな張力を負担しなければならず耐久性能
に於て劣ることきなる。Because the enclosure 6 has a sheet-like portion 5 at least partially made of a rubber elastic material, the flow of water is unlimited, causing the cylinder 1 to swell greatly, making it unstable as a vibration-proof support, and the enclosure 6 is also extremely large. Since it has to bear tension, its durability becomes inferior.
本発明は以上の事情に鑑みなされたものであって、その
要旨とする所は、ゴム弾性体からなる肉厚の筒体の両端
に、この筒体の端部を閉じる取付金具を一体に設け、少
なくとも一方の取付金具には前記筒体内より外側に連通
せしめる小孔と、この小孔から離し、少なくとも一部が
ゴム弾性体からなるシート状部を有する囲いを一体に形
成し、前記小孔を介して連通ずる前記筒体内及び囲い内
に流体を封入し、前記筒体が筒体軸方向に圧縮されると
き外方への変形を抑制する部材を設けた防振支持体に於
て、前記ゴム弾性体からなるシート状部を有する囲いを
含み、これより離して剛性の高い金属製囲いを取付けし
た構成としたことにある。The present invention has been made in view of the above circumstances, and its gist is that mounting brackets are integrally provided at both ends of a thick cylindrical body made of a rubber elastic body to close the ends of the cylindrical body. , at least one of the mounting brackets is integrally formed with a small hole that communicates with the outside from the cylindrical body, and an enclosure that is separated from the small hole and has a sheet-like part at least partially made of a rubber elastic material, and the small hole In the vibration-proof support body, which includes a member that seals a fluid in the cylinder and the enclosure that communicate with each other through the cylinder and suppresses outward deformation when the cylinder is compressed in the axial direction of the cylinder, The structure includes an enclosure having a sheet-like portion made of the rubber elastic body, and a highly rigid metal enclosure is attached at a distance from the enclosure.
次にこれを図面に従い実施例に基づき説明するが、本発
明に基づ〈実施例を示す第３図に於て、第１図にて説明
した構成と同一の構成部分は同一符号を付し、その部分
の説明は省略する。Next, this will be explained based on an embodiment according to the drawings. In FIG. 3 showing an embodiment, the same components as those explained in FIG. , the explanation of that part will be omitted.
第３図に於て、１０は剛性の高い金属製囲いであり、ゴ
ム弾性体からなるシート状部５より離し、シート状部５
にて形成した室５ａを有する囲い６を含むように配置し
てあり、図面では端部を取付金具３に結合せしめである
。In FIG. 3, reference numeral 10 denotes a highly rigid metal enclosure, which is spaced apart from the sheet-like part 5 made of a rubber elastic body.
The housing 6 is arranged to include a housing 6 having a chamber 5a formed in the same manner as shown in FIG.
本発明は、前記の如き構成としたから、外力Ｐが過大と
なって、筒体１の内部１ａの容積が縮小し、その縮小分
の流体が囲い６の室５ａに取付金具３に設けた小孔４を
通じて流入し、シート状部５の拡張によって室５ａが膨
張しても、金属製囲い１０の存在によってその膨張は制
限され、又筒体１の外周には帯状バンド７が嵌着してあ
って外方への変形を抑制する作用と相俟って、ストッパ
ー効果を発揮し、外力Ｐが過大となっても筒体１は一定
の撓み量にて停止し、安定ビた防振支持体が得られると
共にシート状部５も所要の伸びに抑えられ、耐久性も良
好である。Since the present invention is configured as described above, the external force P becomes excessive, the volume of the inside 1a of the cylinder 1 is reduced, and the fluid corresponding to the reduction is provided in the chamber 5a of the enclosure 6 in the mounting bracket 3. Even if the chamber 5a expands due to the expansion of the sheet-like portion 5 after flowing through the small hole 4, the expansion is restricted by the presence of the metal enclosure 10, and the belt-like band 7 is fitted around the outer periphery of the cylinder 1. Together with the action of suppressing outward deformation, the cylinder body 1 exhibits a stopper effect, and even if the external force P becomes excessive, the cylinder body 1 will stop at a certain amount of deflection, resulting in stable vibration isolation. A support is obtained, and the elongation of the sheet-like portion 5 is suppressed to the required level, and the durability is also good.
第４図は、本発明に基づく他の実施例であって、第２図
にて示したものに、前記第３図にて説明したと同様金属
製の囲い１０を取付金具３に取付けたものであり、その
他の構成は第２図と同様であって同一符号が付してあり
、その作用、効果は前記第３図にて説明したと同様であ
る。FIG. 4 shows another embodiment based on the present invention, in which a metal enclosure 10 is attached to the mounting bracket 3 in the same manner as explained in FIG. 3 above in addition to the embodiment shown in FIG. The other configurations are the same as those in FIG. 2 and are denoted by the same reference numerals, and the functions and effects are the same as those explained in FIG. 3 above.
尚第３図、第４図に於て、金属製囲い１０に外部と連通
ずる小孔１０ａが示しであるが、特に設けなくても本発
明の目的は達成できる。Although FIGS. 3 and 4 show a small hole 10a communicating with the outside in the metal enclosure 10, the object of the present invention can be achieved even if the small hole 10a is not provided.
第１図、第２図は本発明の詳細な説明する縦断面図、第
３図、第４図は本発明の例を説明する縦断面図である。
１・・・・・・筒体、１ａ・・・・・・内部、２，３・
・・・・・取付金具、２ａ 、 ３ａ・・・・・・取付
部、２ｂ、３ｂ・・・・・・円錐面、４・・・・・・小
孔、５・・・・・・シート状部、５ａ・・・・・・室、
６・・・・・・囲い、１０・・・・・・剛性の高い金属
製囲い。FIGS. 1 and 2 are longitudinal cross-sectional views explaining the present invention in detail, and FIGS. 3 and 4 are longitudinal cross-sectional views explaining examples of the present invention. 1... Cylindrical body, 1a... Inside, 2, 3...
...Mounting bracket, 2a, 3a...Mounting part, 2b, 3b...Conical surface, 4...Small hole, 5...Seat shape part, 5a...chamber,
6... Enclosure, 10... Highly rigid metal enclosure.
Claims (1)
の端部を閉じる取付金具を一体に設け、少なくとも一方
の取付金具には前記筒体内より外側に連通せしめる小孔
と、この小孔から離し少なくとも一部がゴム弾性体から
なるシート状部を有する囲いを一体に形成し、前記小孔
を介して連通ずる前記筒体内及び囲い内に流体を封入し
、前記筒体が筒体軸方向に圧縮されるとき外方への変形
を抑制する部材を設けた防振支持体に於て、前記ゴム弾
性体からなるシート状部を有する囲いを含み、且つこれ
より離して剛性の高い金属性囲いを取付けしたことを特
徴とする防振支持体。1 At both ends of a thick cylindrical body made of a rubber elastic body, mounting fittings are integrally provided to close the ends of the cylindrical body, and at least one of the fittings has a small hole that communicates with the outside from the cylindrical body, and a small hole that communicates with the outside from the cylindrical body. An enclosure having a sheet-like part at least partially made of a rubber elastic body is integrally formed away from the small hole, and a fluid is sealed in the cylinder and the enclosure communicating through the small hole, and the cylinder is connected to the cylinder. A vibration isolating support provided with a member that suppresses outward deformation when compressed in the body axis direction includes an enclosure having a sheet-like part made of the rubber elastic body, and a rigid part separated from the enclosure. An anti-vibration support featuring a high-quality metal enclosure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3667179A JPS5924294B2 (en) | 1979-03-27 | 1979-03-27 | Anti-vibration support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3667179A JPS5924294B2 (en) | 1979-03-27 | 1979-03-27 | Anti-vibration support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55129635A JPS55129635A (en) | 1980-10-07 |
| JPS5924294B2 true JPS5924294B2 (en) | 1984-06-08 |
Family
ID=12476310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3667179A Expired JPS5924294B2 (en) | 1979-03-27 | 1979-03-27 | Anti-vibration support |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5924294B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57163747A (en) * | 1981-03-31 | 1982-10-08 | Tokai Rubber Ind Ltd | Anti-oscillation supporter for automobile engine |
| JPS5934137U (en) * | 1982-08-28 | 1984-03-02 | 三菱自動車工業株式会社 | Engine mount |
| DE4114879A1 (en) * | 1991-05-07 | 1992-11-12 | Freudenberg Carl Fa | SPRING RATE SWITCHABLE MOTOR BEARING |
-
1979
- 1979-03-27 JP JP3667179A patent/JPS5924294B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55129635A (en) | 1980-10-07 |
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