JPS60215132A - Elastic bush - Google Patents

Elastic bush

Info

Publication number
JPS60215132A
JPS60215132A JP6777184A JP6777184A JPS60215132A JP S60215132 A JPS60215132 A JP S60215132A JP 6777184 A JP6777184 A JP 6777184A JP 6777184 A JP6777184 A JP 6777184A JP S60215132 A JPS60215132 A JP S60215132A
Authority
JP
Japan
Prior art keywords
inner cylinder
elastic
throttle passage
elastic member
liquid chamber
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
Application number
JP6777184A
Other languages
Japanese (ja)
Inventor
Takuya Dan
団 琢也
Michihiro Orikawa
通洋 折川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP6777184A priority Critical patent/JPS60215132A/en
Publication of JPS60215132A publication Critical patent/JPS60215132A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04Units 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
    • F16F13/06Units 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
    • F16F13/08Units 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
    • F16F13/14Units of the bushing type, i.e. loaded predominantly radially

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Devices Of Dampers And Springs (AREA)

Abstract

PURPOSE:To facilitate formation of a throttle passage which has length long enough to be completely prevented from being influenced by assembly of an elastic bush, by a method wherein the throttle passage is formed in a stopper which is protruded from the inner cylinder side into a liquid chamber. CONSTITUTION:An elastic member 3 is adhered between an inner cylinder 1 and an outer cylinder 2 by vulcanizing the elastic member 3, and plural chambers 5 are formed in the elastic member. Stoppers 6, which are protruded from the inner cylinder side, are formed in their respective liquid chamber 5, and a throttle passage 7, intercommunicating the liquid chambers 5, is provided in each of the stoppers 6. The stoppers 6 are secured through engagement of a rigid member 8 with a boss with the inner cylinder 1.

Description

【発明の詳細な説明】 〔技術分野〕 この発明は、自動車、産業機械その他に使用されて有効
なる防振作用をもたらす弾性ブッンユに関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an elastic bungee that is used in automobiles, industrial machinery, and other devices and provides effective vibration isolation.

〔従来技術〕[Prior art]

主には、液室内に封入した非圧縮性流体の流動抵抗に基
づいて振動の減衰をもたらす従来既知の弾性ブツシュと
しては、ドイツ国特許第2841505号明細書、特開
昭58−.20,324.2号公報(特願昭57−86
992号)に開示されたものがある。
Conventionally known elastic bushings that provide vibration damping mainly based on the flow resistance of an incompressible fluid sealed in a liquid chamber are disclosed in German Patent No. 2841505 and Japanese Patent Application Laid-Open No. 1983-1989. Publication No. 20,324.2 (Patent application 1986-86)
No. 992).

ここで前者の弾性ブツシュは、内筒と外筒との間に配置
される弾性部材を、その外周に固着した筒状部材を介し
て外筒に固定し、またその筒状部材の外筒側表面に複数
の液室を相互に接続する絞り通路を設けてなり、また、
後者の弾性ブツシュは、金属スリーブを嵌め合せた内筒
の外周面に、液室を相互接続する絞り通路を設けてなる
Here, the former elastic bushing fixes an elastic member disposed between the inner cylinder and the outer cylinder to the outer cylinder via a cylindrical member fixed to the outer periphery of the elastic member, and also A throttle passage is provided on the surface to interconnect multiple liquid chambers, and
The latter elastic bushing is formed by providing a throttle passage interconnecting the liquid chambers on the outer peripheral surface of an inner cylinder into which a metal sleeve is fitted.

ところが、前者の弾性ブツシュにあっては、外筒を筒状
部材にかしめ加工することにより弾性部材の外筒への固
定を行っているため、そのかしめ力「工に際して筒状部
材外周の絞り通路が変形し、所期した振動減衰作用をも
たらし得なくなるおそれがあり、またこの弾性ブツシュ
では、絞り通路が筒状部材の外周に存在することから、
弾性ブツシュの取付は状態によっては液室内に発生もし
くは予め含まれていた気泡がそのオリフィスに通過する
ことがあり、これによって振動減衰特性が著しく損われ
るおそれがあった。
However, in the case of the former elastic bushing, the elastic member is fixed to the outer cylinder by caulking the outer cylinder to the cylindrical member. There is a risk that the elastic bushing will be deformed and will not be able to provide the desired vibration damping effect.In addition, in this elastic bushing, since the throttle passage is present on the outer periphery of the cylindrical member,
Depending on the mounting conditions of the elastic bushing, air bubbles generated or pre-contained within the liquid chamber may pass through the orifice, which may significantly impair vibration damping characteristics.

また後者の弾性ブツシュは、内筒の外周面に、正面形状
が直線状をなす絞り通路を設けているため、絞り通路の
長さを十分長くすることができず、この結果として、大
きな振動減衰特性をもたらし得ない問題があった。
In addition, since the latter elastic bushing has a throttle passage with a linear front face on the outer peripheral surface of the inner cylinder, the length of the throttle passage cannot be made sufficiently long, and as a result, large vibration damping occurs. There was a problem that could not bring about the characteristics.

〔発明の目的〕[Purpose of the invention]

この発明は、従来技術のかかる問題を有利に解決するも
のであり、外筒のかしめ加工に全く影響されず、かつ、
所要に応じた十分な長さとすることができ、しかも、液
室内の気泡の通過を有効に防止できる絞り通路を具えた
弾性ブツシュを促供するものである。
The present invention advantageously solves the problems of the prior art, is completely unaffected by caulking of the outer cylinder, and
The purpose of the present invention is to provide an elastic bushing which can be of sufficient length as required, and which is provided with a constriction passageway which can effectively prevent the passage of air bubbles within the liquid chamber.

〔発明の構成〕[Structure of the invention]

この発明の弾性ブツシュは、同心配置した内外筒間に弾
性部材を設け、またこの弾性部材の軸線方向の中央部に
、その周方向に所定間隔をおく複数の液室を設け、さら
に、内筒側から各液室内へ突出するストッパー内に、少
なくとも隣接する液室を相互に連通させる絞り通路を設
けてなる。
The elastic bushing of the present invention includes an elastic member provided between the inner and outer cylinders arranged concentrically, a plurality of liquid chambers arranged at predetermined intervals in the circumferential direction in the axial center of the elastic member, and further provided with the inner cylinder. A stopper that projects into each liquid chamber from the side is provided with a throttle passage that allows at least adjacent liquid chambers to communicate with each other.

この弾性ブツシュでは、従来技術と同様に、液室内の非
圧縮性液体の絞り通路を通る流動運動により、振動の有
効なる減衰がもたらされる他、ストッパーと外筒との当
接により、内外筒の過剰なる相対変位が防止される。ま
た、この弾性ブツシュの絞り通路は、内筒側から液室内
へ突出するストッパー、たとえば内筒に関連させて設け
た剛性部材に弾性材料を被覆してなるストッパー内に設
けられているので、弾性部材への外筒のかしめ加工に際
して絞り通路の寸法、形状などが何の影響も受けること
がなく、その絞り通路長は、剛性部材をたとえば三部品
を結合することによって構成する場合には、極めて簡単
にして十分長くすることができる。さらに、絞り通路は
、液室の外周面から離れた位置で液室内に開口するので
、通常は液室の上部に溜まる気泡がその絞り通路内へ進
入して振動減衰性能を低下させるおそれがない。
In this elastic bushing, as in the prior art, the flow motion of the incompressible liquid in the liquid chamber through the constricted passage provides effective vibration damping, and the contact between the stopper and the outer cylinder causes the inner and outer cylinders to Excessive relative displacement is prevented. In addition, the throttle passage of this elastic bushing is provided in a stopper that protrudes into the liquid chamber from the inner cylinder side, for example, a stopper made of a rigid member provided in association with the inner cylinder and coated with an elastic material. When caulking the outer cylinder to the member, the dimensions and shape of the throttle passage are not affected in any way, and the length of the throttle passage is extremely short when the rigid member is constructed by joining three parts, for example. It can be made simple and long enough. Furthermore, since the throttle passage opens into the liquid chamber at a position away from the outer peripheral surface of the liquid chamber, there is no risk that air bubbles that would normally accumulate at the top of the liquid chamber will enter the throttle passage and degrade vibration damping performance. .

〔実施例〕〔Example〕

以下にこの発明を図面に基づいて説明する。 The present invention will be explained below based on the drawings.

第1図(a)、(b)はそれぞれこの発明の一実施例を
示す断面図であり、図中1は内筒、2は外筒をそれぞれ
示し、また3は、内外筒1,2間に設けた弾性部材を示
す。
FIGS. 1(a) and 1(b) are cross-sectional views showing an embodiment of the present invention, in which 1 indicates an inner cylinder, 2 an outer cylinder, and 3 a space between the inner and outer cylinders 1 and 2. The elastic member provided in the figure is shown.

ゴムもしくはゴム状弾性体からなるこの弾性部材3は、
この例では、内筒1には加硫接着その他によって直接的
に、また外筒2には筒状部材4を介してそれぞれ同定さ
れており、ここにおける弾性部材3と筒状部材4との結
合はたとえば加硫接着で、また外筒2の筒状部材4への
固定は外筒2のかしめ加工にてそれぞれ行われる。
This elastic member 3 made of rubber or rubber-like elastic material is
In this example, the inner cylinder 1 is identified directly by vulcanization adhesive or the like, and the outer cylinder 2 is identified through the cylindrical member 4, and the elastic member 3 and the cylindrical member 4 are connected here. For example, the outer tube 2 is fixed to the cylindrical member 4 by vulcanization adhesion, and the outer tube 2 is caulked.

なおここで、筒状部材4を設けることなく、弾性部材3
を、外筒2にかしめ、接着などによって直接的に固定す
ることも可能である。
Note that here, without providing the cylindrical member 4, the elastic member 3
It is also possible to directly fix it to the outer cylinder 2 by caulking, gluing, etc.

またこの例では、弾性部材3に、その軸線方向の中央部
で、直径方向に対向する二個の窪み3aを設け、併せて
、筒状部材4の窪み3aと対応する部分に開口4aを設
けてこれらの窪み3aおよび開口4a内に非圧縮性の液
体を封入することにより、対向する二個の液室5を構成
する。またここで、筒状部材4を介在させることなく弾
性部材3を外筒2に直接的に固定した場合には、液室5
は、弾性部材3と外筒2との間に、もしくは内筒1と、
弾性部材3と、外筒2との間に構成されることになる。
Further, in this example, the elastic member 3 is provided with two diametrically opposing depressions 3a at the center in its axial direction, and an opening 4a is provided in a portion of the cylindrical member 4 corresponding to the depression 3a. By sealing an incompressible liquid in these depressions 3a and openings 4a, two opposing liquid chambers 5 are formed. Moreover, here, when the elastic member 3 is directly fixed to the outer cylinder 2 without intervening the cylindrical member 4, the liquid chamber 5
is between the elastic member 3 and the outer cylinder 2 or with the inner cylinder 1,
It is constructed between the elastic member 3 and the outer cylinder 2.

さらにここでは、これらの各液室5内に、内筒側から突
出するストッパー6を設け、このストッパー6内に、液
室5,5を相互に連通させる絞り通路7を設ける。スト
ッパー6は、金属その他からなるボス付きの剛性部材8
を、内筒1に嵌め合せて固定し、そしてその表面に、弾
性部材3と同質の弾性材料9を被覆することにより構成
され、このスト・シバ−6は、内外筒1,2の相対変位
量が過大となった場合に、弾性材料9による緩衝作用下
で、その相対変位を拘束すべく機能する。また、絞り通
路7は、たとえば第2図に示すように、剛性部材8を約
3〜4 mmの厚さの鋼板8aと厚さが約0.5〜1m
111の厚さの薄鋼板8bとを溶接その他で接合するこ
とにて構成するに先だって、薄鋼板8bに、絞り通路7
の所要の形状および寸法に応じた連続凹部8Cをプレス
成形することにより、その連続凹部8cと鋼板表面とに
よちてその大部分を形成され、弾性材料9に設けた開口
9aによって両液室5,5の連通をもたらす。図示例で
は内筒1を避けるように迂曲するこの絞り通路7は、そ
こを通る液体に、所要に応じた大きさの流動抵抗を与え
、このことにて、弾性ブツシュの十分大きな振動減衰作
用を担保する。
Further, here, a stopper 6 protruding from the inner cylinder side is provided in each of these liquid chambers 5, and a throttle passage 7 is provided in this stopper 6 to allow the liquid chambers 5, 5 to communicate with each other. The stopper 6 is a rigid member 8 with a boss made of metal or other material.
is fitted and fixed to the inner cylinder 1, and its surface is covered with an elastic material 9 of the same quality as the elastic member 3. If the amount becomes excessive, the elastic material 9 functions to restrain its relative displacement under the buffering effect. Further, as shown in FIG. 2, for example, the throttle passage 7 has a rigid member 8 formed of a steel plate 8a having a thickness of about 3 to 4 mm and a steel plate 8a having a thickness of about 0.5 to 1 m.
Before constructing the thin steel plate 8b with a thickness of 111 mm by welding or other means, the thin steel plate 8b is connected to the throttle passage 7.
By press-forming a continuous recess 8C according to the required shape and dimensions of It brings about 5,5 connections. In the illustrated example, this constriction passage 7, which is curved around to avoid the inner cylinder 1, provides a flow resistance of a required amount to the liquid passing through it, and thereby provides a sufficiently large vibration damping effect of the elastic bushing. secure.

なお、この絞り通路7の両端はストッパー6に開口して
おり、その開口は液室5の内外周面および両側面から相
当距離離間するので、弾性ブツシュの取付姿勢のいかん
にかかわらず、その絞り通路7内へ液室内の気泡が進入
するおそれがない。
Note that both ends of this throttle passage 7 are open to the stopper 6, and the openings are spaced a considerable distance from the inner and outer circumferential surfaces and both side surfaces of the liquid chamber 5, so that the throttle can be opened regardless of the mounting orientation of the elastic bushing. There is no risk of air bubbles in the liquid chamber entering the passage 7.

第3図は剛性部材の変形例を示す正面図であり、この例
は、絞り通路7の全長を長くすること によって弾性ブ
ツシュの一層大きな振動減衰作用をもたらすため、薄鋼
板8bの連続凹部8cを蛇行させたものである。
FIG. 3 is a front view showing a modified example of the rigid member. In this example, continuous recesses 8c of the thin steel plate 8b are used to increase the overall length of the throttle passage 7 to provide a greater vibration damping effect of the elastic bushing. It is a meandering version.

第4図はこの発明の変形例を示す断面図であり、この例
では、前述した例の筒状部材40代わりに弾性体3の両
端部にのみリング10を固着することによって、弾性ブ
ツシュのコストおよび重量の低減をもたらすことができ
る。
FIG. 4 is a sectional view showing a modification of the present invention. In this example, rings 10 are fixed only to both ends of the elastic body 3 instead of the cylindrical member 40 of the above-described example, thereby reducing the cost of the elastic bushing. and weight reduction.

第5図は剛性部材のさらに他の例を示す断面図であり、
剛性部材8の一方側に片寄せて絞り通路7の主要部をな
す穴11を形成したものであり、この例によれば前述し
た例よりも加工が容易になる実益がある。なお、この例
における直線状の穴11を剛性部材8に貫通する内筒1
側に配置して内筒1の外周にも穴11の一部を形成する
ことも可能である。
FIG. 5 is a sectional view showing still another example of the rigid member,
The hole 11 forming the main part of the throttle passage 7 is formed on one side of the rigid member 8, and this example has the practical advantage of being easier to process than the previously described example. In addition, in this example, the inner cylinder 1 that penetrates the linear hole 11 into the rigid member 8
It is also possible to form part of the hole 11 on the outer periphery of the inner cylinder 1 by disposing it on the side.

以上この発明を図示例に基らいて説明したが、絞り通路
の形状、長さなどは所要に応じて適宜に変更することが
でき、また液室の数を三個以上とすることもできる。な
お、液室の数を三個以上とした場合には、−の液室を隣
接する液室に連通させる絞り通路の他、残りの−もしく
は複数の液室にも連通させる絞り通路を設けることもで
きる。
Although the present invention has been described above based on the illustrated examples, the shape, length, etc. of the throttle passage can be changed as required, and the number of liquid chambers can also be increased to three or more. In addition, when the number of liquid chambers is three or more, in addition to the throttle passage that communicates the - liquid chamber with the adjacent liquid chamber, a throttle passage that communicates with the remaining - or a plurality of liquid chambers must be provided. You can also do it.

〔発明の効果〕〔Effect of the invention〕

従ってこの発明によれば、とくに、内筒側から液室内へ
突出するストッパーに絞り通路を形成すすることにより
、弾性ブツシュの組み立てに全く影晋されない十分な長
さの絞り通路を容易に得ることができ、しかも、その絞
り通路への気泡の通過を有効に防止することができると
いう顕著なる効果がもたらされる。
Therefore, according to the present invention, by forming the throttle passage in the stopper that protrudes from the inner cylinder side into the liquid chamber, it is possible to easily obtain a throttle passage of sufficient length that is not affected at all by the assembly of the elastic bushing. This provides a remarkable effect in that it is possible to effectively prevent air bubbles from passing through the constriction passage.

【図面の簡単な説明】[Brief explanation of drawings]

第1図はこの発明の一実施例を示す断面図、第2図は剛
性部材を例示する図、 第3図は剛性部材の変形例を示す正面図、第4図はこの
発明の他の実施例を示す断面図、第5図は剛性部材のさ
らに他の変形例を示す断面図である。 1・・・内筒、 2・・・外筒、 3・・・弾性部材、 5・・・液室、 6・・・ストッパー、 7・・・絞り通路、8・・・剛
性部材、 9・・・弾性材料。 第1図 (a) (b) 第2図 (a) (b) 手続補正書 昭和59年 6 月 4日 1、事件の表示 昭和59年 特 許 願第67771 号2、発明の名
称 弾性ブツシュ 3、補正をする者 事件との関係 特許出願人 (527) 株式会社 ブリデストン ■、明細書第8頁第10行と第11行との間に下記゛を
加入する。 「 第6図は剛性部材のさらなる変形例を示すものであ
り、この例の剛性部材8は、中央部に内筒1のための貫
通穴を有する二枚の鋼板8d、’8eを溶接その他によ
って接合することより構。 成され、ここで、両鋼板sa、seの少なくとも一方は
、それらの対向面に、そこへの貫通穴を少なくとも一方
側から迂曲してその長さ方向に貫通する溝12を有する
。この溝1zは、貫1(゛通人への迂曲部分で、その溝
底が貫通穴に臨むよう形成されており、それを内筒1に
嵌め合せた場合には、第6図(b)に示すように、溝1
2の迂曲部分と、内筒lの外表面との間に流体通路が形
成されることになる。」 2、同第9頁第11行の「第5図は」を「第5,6図は
それぞれ」に訂正する。 8、添付図面に別紙の通りの第6図を追加する。 第6図− (1)) 手続補正書 昭和59年6月18日 1、事件の表示 昭和59年特 許 願第 67771号2、発明の名称 弾性ブツシュ 3、補正をする者 事件との関係 特許出願人 (527)株式会社 ブリデストン 5゜ 6、補正の対象 明細書のU発明の詳細な説明」の欄、
1.明細書第8頁第10行と第11行との間に下記ご加
入する。 「 第6図は剛性部材のざらなる変形例を示すものであ
り、この例の剛性部材8は、中央部に内筒1のための貫
通穴を有する二枚の鋼板8d8e′f:溶接その他によ
って接合することより構成され、ここで、両鋼板Bci
 、8eの少なくとも一方は、それらの対向面に、そこ
への貫通穴を少なくとも一方側から紅白してその長さ方
−に貫通する溝12を有する。この溝12は、辿通人へ
の肝油部分で、その溝底が貫通穴に臨tよう形成されて
おり、それを内筒1に嵌め合ギた場合には、第6図(b
)に示すように、溝12の紅白部分と、内筒1の外表面
との間に6体通路が形成されることになる。なおここで
、この例σy剛性部材8を一枚の鋼板から構成す・こと
もでき、かかる場合における溝12cm5.4板をその
長さ方向に貫通する直線穴と、内筒のためのそこへの貫
通穴を巡る溝とで形成す、ことができる。」
FIG. 1 is a sectional view showing one embodiment of the present invention, FIG. 2 is a view illustrating a rigid member, FIG. 3 is a front view showing a modification of the rigid member, and FIG. 4 is another embodiment of the present invention. FIG. 5 is a cross-sectional view showing still another modification of the rigid member. DESCRIPTION OF SYMBOLS 1... Inner cylinder, 2... Outer cylinder, 3... Elastic member, 5... Liquid chamber, 6... Stopper, 7... Throttle passage, 8... Rigid member, 9. ...Elastic material. Figure 1 (a) (b) Figure 2 (a) (b) Procedural Amendment June 4, 1980 1, Indication of Case 1982 Patent Application No. 67771 2, Title of Invention Elastic Bush 3 , Relationship with the case of the person making the amendment Patent applicant (527) Bridestone Co., Ltd. ■, the following is added between lines 10 and 11 on page 8 of the specification. 6 shows a further modified example of the rigid member, and the rigid member 8 of this example is made by welding or otherwise welding two steel plates 8d and '8e that have a through hole for the inner cylinder 1 in the center. Here, at least one of the steel plates sa and se has a groove 12 formed in the opposite surface thereof to have a through hole formed therein rounded from at least one side and penetrating in the length direction thereof. This groove 1z is a curved part toward the through hole 1, and is formed so that the bottom of the groove faces the through hole, and when it is fitted into the inner cylinder 1, as shown in FIG. As shown in (b), groove 1
A fluid passageway is formed between the curved portion of 2 and the outer surface of the inner cylinder 1. 2. On page 9, line 11, "Figure 5 is" is corrected to "Figures 5 and 6 are respectively." 8. Add Figure 6 as attached to the attached drawings. Figure 6 - (1)) Procedural amendment June 18, 1980 1. Indication of the case 1982 Patent Application No. 67771 2. Name of the invention Elastic Bush 3. Relationship with the person making the amendment Patent Applicant (527) Brideston Co., Ltd. 5゜6, Subject of amendment: U Detailed explanation of the invention in the specification,
1. Please enter the following information between lines 10 and 11 on page 8 of the specification. 6 shows a rough modification of the rigid member, and the rigid member 8 in this example is made of two steel plates 8d8e'f having a through hole for the inner cylinder 1 in the center by welding or other means. Here, both steel plates Bci
. This groove 12 is a liver oil part for the passer, and the groove bottom is formed so as to face the through hole, and when it is fitted into the inner cylinder 1, it is
), a six-body passage is formed between the red and white parts of the groove 12 and the outer surface of the inner cylinder 1. In this case, the σy rigid member 8 in this example can also be constructed from a single steel plate, and in such a case, a straight hole passing through the groove 12 cm 5.4 plate in its length direction, and a straight hole there for the inner cylinder. It can be formed with a groove surrounding the through hole. ”

Claims (1)

【特許請求の範囲】[Claims] 1、同心配置した内筒および外筒と、これらの、内外筒
間に設けた弾性部材と、この弾性部材の軸線方向の中央
部で、その周方向に所定間隔をおいて設けた複数の液室
と、内筒側からこれらの各液室内へ突出するストッパー
と、このストッパー内に形成され、少なくとも隣接する
液室を相互に連通させる絞り通路とを具えてなる弾性ブ
ッンユ。
1. An inner cylinder and an outer cylinder arranged concentrically, an elastic member provided between the inner and outer cylinders, and a plurality of fluids arranged at predetermined intervals in the circumferential direction at the center of the elastic member in the axial direction. An elastic bottle comprising a chamber, a stopper projecting into each of these liquid chambers from the inner cylinder side, and a throttle passage formed in the stopper and communicating at least adjacent liquid chambers with each other.
JP6777184A 1984-04-06 1984-04-06 Elastic bush Pending JPS60215132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6777184A JPS60215132A (en) 1984-04-06 1984-04-06 Elastic bush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6777184A JPS60215132A (en) 1984-04-06 1984-04-06 Elastic bush

Publications (1)

Publication Number Publication Date
JPS60215132A true JPS60215132A (en) 1985-10-28

Family

ID=13354536

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6777184A Pending JPS60215132A (en) 1984-04-06 1984-04-06 Elastic bush

Country Status (1)

Country Link
JP (1) JPS60215132A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6291036U (en) * 1985-11-28 1987-06-10
EP0285696A2 (en) * 1987-04-04 1988-10-12 Firma Carl Freudenberg Sleeve-type rubber spring
JPS63293341A (en) * 1987-05-21 1988-11-30 カール・フロイデンベルク Sleeve rubber shock absorber
JPS643340A (en) * 1987-06-25 1989-01-09 Tokai Rubber Ind Ltd Manufacture for fluid-sealed type vibro-isolating bush
JPH0276240U (en) * 1988-11-30 1990-06-12
EP0496959A2 (en) * 1991-02-01 1992-08-05 Boge GmbH Hydrautically damped elastic support
KR20140132446A (en) * 2013-05-08 2014-11-18 현대모비스 주식회사 Hydraulic sealed type bush
CN107023600A (en) * 2015-10-30 2017-08-08 住友理工株式会社 Rail truck rubber bushing

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6291036U (en) * 1985-11-28 1987-06-10
JPH0519631Y2 (en) * 1985-11-28 1993-05-24
EP0285696A2 (en) * 1987-04-04 1988-10-12 Firma Carl Freudenberg Sleeve-type rubber spring
JPS63293341A (en) * 1987-05-21 1988-11-30 カール・フロイデンベルク Sleeve rubber shock absorber
JPS643340A (en) * 1987-06-25 1989-01-09 Tokai Rubber Ind Ltd Manufacture for fluid-sealed type vibro-isolating bush
JPH0369015B2 (en) * 1987-06-25 1991-10-30 Tokai Rubber Ind Ltd
JPH0276240U (en) * 1988-11-30 1990-06-12
EP0496959A2 (en) * 1991-02-01 1992-08-05 Boge GmbH Hydrautically damped elastic support
KR20140132446A (en) * 2013-05-08 2014-11-18 현대모비스 주식회사 Hydraulic sealed type bush
CN107023600A (en) * 2015-10-30 2017-08-08 住友理工株式会社 Rail truck rubber bushing

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