JP2783409B2 - Anti-vibration device - Google Patents

Anti-vibration device

Info

Publication number
JP2783409B2
JP2783409B2 JP63265860A JP26586088A JP2783409B2 JP 2783409 B2 JP2783409 B2 JP 2783409B2 JP 63265860 A JP63265860 A JP 63265860A JP 26586088 A JP26586088 A JP 26586088A JP 2783409 B2 JP2783409 B2 JP 2783409B2
Authority
JP
Japan
Prior art keywords
inner cylinder
elastic body
frame body
vibration isolator
vibration
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 - Fee Related
Application number
JP63265860A
Other languages
Japanese (ja)
Other versions
JPH02113137A (en
Inventor
達郎 石山
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 JP63265860A priority Critical patent/JP2783409B2/en
Publication of JPH02113137A publication Critical patent/JPH02113137A/en
Application granted granted Critical
Publication of JP2783409B2 publication Critical patent/JP2783409B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/387—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type comprising means for modifying the rigidity in particular directions

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は車両のエンジン等に取り付けられ、エンジン
等の振動を吸収するブツシユタイプの防振装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a bush type vibration damping device which is attached to an engine or the like of a vehicle and absorbs vibration of the engine or the like.

〔従来の技術〕[Conventional technology]

弾性体が掛け渡された内筒と外筒とを夫々振動発生部
と振動受部とへ連結したブツシユタイプの防振装置が用
いられている。A bush-type vibration isolator is used in which an inner cylinder and an outer cylinder each having an elastic body stretched over therebetween are connected to a vibration generator and a vibration receiver, respectively.

この防振装置は主として車両のエンジンマウント、ブ
ツシユ、エンジンロールストツパー、センターポート等
に用いられている。This vibration isolator is mainly used for an engine mount, a bush, an engine roll stopper, a center port and the like of a vehicle.

この種の防振装置には、エンジンの始動時や急加速度
時に高いトルクが生じた場合に、これを吸収するために
高減衰効果を備えた弾性体が設けられている。This type of vibration isolator is provided with an elastic body having a high damping effect in order to absorb a high torque generated when the engine is started or at a rapid acceleration.

第11図（Ａ）に示す如く、従来の防振装置100の弾性
体102は内筒104の外周面及び外筒106の内周面間でその
両端部が加硫接着されるようになっている。このため加
硫接着後のゴム収縮により弾性体102が矢印Ａ方向に引
っ張られてしまい弾性体102に亀裂が入り易くその結
果、防振装置100の耐久性が悪くなるという問題があっ
た。As shown in FIG. 11 (A), both ends of the elastic body 102 of the conventional vibration isolator 100 are vulcanized and bonded between the outer peripheral surface of the inner cylinder 104 and the inner peripheral surface of the outer cylinder 106. I have. For this reason, the elastic body 102 is pulled in the direction of the arrow A due to the rubber contraction after the vulcanization bonding, and the elastic body 102 is easily cracked. As a result, there is a problem that the durability of the vibration isolator 100 is deteriorated.

そこで、弾性体102に作用する引張力を低減又はそれ
以上に圧縮させる手段として、第11図（Ｂ）に示す如く
加硫接着後に外筒106を絞って外筒106の内径Ｄを小さく
したり、あるいは内筒104を拡径したりすることにより
弾性体102の長さＬを短くして弾性体102に作用する引張
力を低減させていた。Therefore, as means for reducing or compressing the tensile force acting on the elastic body 102, as shown in FIG. 11 (B), after vulcanization bonding, the outer cylinder 106 is squeezed to reduce the inner diameter D of the outer cylinder 106. Alternatively, the length L of the elastic body 102 is shortened by increasing the diameter of the inner cylinder 104, thereby reducing the tensile force acting on the elastic body 102.

しかし、外筒106を絞っても外径比５％が限度であ
り、それ以上絞ると弾性体102の接着性に問題が生じる
ようになる。However, even if the outer cylinder 106 is squeezed, the outer diameter ratio is limited to 5%. If the outer cylinder 106 is squeezed further, a problem occurs in the adhesiveness of the elastic body 102.

また、内筒104の肉厚は厚く形成されているため９％
程度（内筒104の内径8mm、内筒104の板厚3mmの場合）し
か拡径できず内筒104を拡径しても十分に引張力を低減
することは困難であるため弾性体102に亀裂が生じ、防
振装置100の耐久性を向上させることは困難であった。The inner cylinder 104 has a thickness of 9% because it is formed thick.
It is only possible to expand the diameter (in the case of the inner cylinder 104 having an inner diameter of 8 mm and the inner cylinder 104 having a thickness of 3 mm), and it is difficult to sufficiently reduce the tensile force even if the inner cylinder 104 is expanded. Cracks were generated, and it was difficult to improve the durability of the vibration damping device 100.

〔発明が解決しようとする課題〕[Problems to be solved by the invention]

本発明は上記事実に鑑み防振装置の耐久性を向上させ
ると共に防振装置の弾性体の接着性も損なわない防振装
置を提供することが目的である。An object of the present invention is to provide a vibration isolator which improves the durability of the vibration isolator and does not impair the adhesiveness of the elastic body of the vibration isolator in view of the above fact.

〔課題を解決するための手段〕[Means for solving the problem]

本発明は、第１の内筒と、この第１の内筒の外側に第
１の内筒を包囲するように配設される第２の内筒と、こ
の第２の内筒の外側に第２の内筒を包囲するように配設
される筒状体と、第２の内筒と筒状体とに固着されて第
２の内筒と筒状体との間に配設される弾性体とを備え、
前記第２の内筒はこの第２の内筒と筒状体とに前記弾性
体が固着された後に第２の内筒と筒状体との間の弾性体
の長さを短くするように変形されてなる構成とした。The present invention is directed to a first inner cylinder, a second inner cylinder disposed outside the first inner cylinder so as to surround the first inner cylinder, and a second inner cylinder disposed outside the second inner cylinder. A tubular body arranged to surround the second inner cylinder; and a tubular body fixed to the second inner cylinder and the tubular body and arranged between the second inner cylinder and the tubular body. With an elastic body,
The second inner cylinder reduces the length of the elastic body between the second inner cylinder and the cylindrical body after the elastic body is fixed to the second inner cylinder and the cylindrical body. It was configured to be deformed.

〔作用〕[Action]

上記構成の本発明では第１の内筒と筒状体の間に第２
の内筒を設け、第２の内筒と筒状体の間に弾性体を配設
し第２の内筒を変形させ、第２の内筒と筒状体との間に
配設されている弾性体の長さを短くしたので、加硫接着
により弾性体に作用している引張力を低減させることに
より、弾性体の接着性を低下させることなく防振装置の
耐久性を向上させることができる。In the present invention having the above configuration, the second inner cylinder and the cylindrical body have the second
And an elastic body is disposed between the second inner cylinder and the cylindrical body to deform the second inner cylinder, and is disposed between the second inner cylinder and the cylindrical body. Since the length of the elastic body is shortened, the durability of the vibration isolator can be improved without reducing the adhesiveness of the elastic body by reducing the tensile force acting on the elastic body by vulcanization bonding. Can be.

〔第１実施例〕 第１図乃至第５図（Ａ）、（Ｂ）には本発明に係る防
振装置10の第１実施例が示されている。First Embodiment FIGS. 1 to 5A and 5B show a first embodiment of a vibration isolator 10 according to the present invention.

第１図及び第２図に示す如く、この防振装置10では内
筒12の外側に外筒14が配置され、これらの間にフレーム
体16が配設されている。内筒12の長手方向の一端部12A
は第２図に示す如くテーパ状に形成され、その端面の外
径寸法は第４図に示す如くフレーム体16の内径寸法Ｄよ
り小さく形成されている。前記フレーム体16は第３図及
び第４図に示す如く中空の四角柱体の上面16A及び下面1
6Bを中間部で折り曲げると共に左側面16C及び右側面16D
は平板状に形成している。第３図に示す如くフレーム体
16の上面16Aには切欠18が複数形成されている。また、
第１図に示す如くこのフレーム体16の肉厚は内筒12の肉
厚より薄く形成されている。As shown in FIGS. 1 and 2, in this vibration isolator 10, an outer cylinder 14 is arranged outside an inner cylinder 12, and a frame body 16 is arranged between them. One end 12A in the longitudinal direction of the inner cylinder 12
Is formed in a tapered shape as shown in FIG. 2, and the outer diameter of the end face is formed smaller than the inner diameter D of the frame body 16 as shown in FIG. As shown in FIGS. 3 and 4, the frame body 16 has an upper surface 16A and a lower surface 1 of a hollow rectangular prism.
6B is bent at the middle part and left side 16C and right side 16D
Is formed in a flat plate shape. Frame body as shown in FIG.
A plurality of cutouts 18 are formed in the upper surface 16A of 16. Also,
As shown in FIG. 1, the thickness of the frame body 16 is smaller than the thickness of the inner cylinder 12.

第１図に示す如く、筒状体としての外筒14の内周面と
フレーム体16の左側面16C及び外筒14の内周面とフレー
ム体16の右側面16Dとの間には弾性体20が夫々掛け渡さ
れて加硫接着されるようになっている。この弾性体20に
よって外筒14とフレーム体16との間に形成されている空
間部が仕切られてすぐり部22、22が形成されるようにな
っている。また前記弾性体20は急激な大振幅の振動を吸
収できる高減衰特性を有したものとなっている。As shown in FIG. 1, an elastic body is provided between the inner peripheral surface of the outer cylinder 14 as a cylindrical body and the left side 16C of the frame 16 and the inner peripheral surface of the outer cylinder 14 and the right side 16D of the frame 16. 20 are each passed over and vulcanized and adhered. A space formed between the outer cylinder 14 and the frame body 16 is partitioned by the elastic body 20, so that the burrs 22, 22 are formed. The elastic body 20 has a high damping characteristic capable of absorbing a sudden large amplitude vibration.

この防振装置10は内筒12と外筒14の一方を図示しない
車体へ、他方をエンジンへ取付けて支持される。一例と
して外筒14を車体へ、内筒12をエンジンへ取付けると、
急加減速時のような大振幅の振動時には内筒12を介して
弾性体20を変形させるので、弾性体20によって速やかに
減衰効果が生じるようになっている。The vibration isolator 10 is supported by attaching one of the inner cylinder 12 and the outer cylinder 14 to a vehicle body (not shown) and the other to an engine. As an example, when attaching the outer cylinder 14 to the car body and the inner cylinder 12 to the engine,
The elastic body 20 is deformed via the inner cylinder 12 at the time of large amplitude vibration such as sudden acceleration / deceleration, so that the elastic body 20 quickly produces a damping effect.

次に本発明に係る防振装置10の製造工程について説明
する。Next, a manufacturing process of the vibration isolator 10 according to the present invention will be described.

まず、外筒14内にフレーム体16を配置させた状態で外
筒14とフレーム体16間に弾性体20を弾性体20の両端面が
夫々外筒14の内周面とフレーム体16の左側面16C、右側
面16Dに当接するように掛け渡した状態に配設する。そ
して、この状態で加硫接着を行う。この際、弾性体20は
加硫接着後のゴム収縮のため第５図（Ａ）矢印Ａ方向に
引っ張られながら弾性体20は外筒14とフレーム体16の左
側面16C、右側面16Dとの間に確実に固着されることにな
る。First, in a state where the frame body 16 is arranged in the outer cylinder 14, the elastic body 20 is provided between the outer cylinder 14 and the frame body 16 at both end surfaces of the elastic body 20 respectively on the inner peripheral surface of the outer cylinder 14 and the left side of the frame body 16. It is disposed so as to be in contact with the surface 16C and the right side surface 16D. Then, vulcanization bonding is performed in this state. At this time, while the elastic body 20 is pulled in the direction of arrow A in FIG. 5A due to rubber contraction after vulcanization bonding, the elastic body 20 is moved between the outer cylinder 14 and the left side face 16C and the right side face 16D of the frame body 16. It will surely be fixed in between.

そして、フレーム体16内に内筒12のテーパ状の一端部
12Aからフレーム体16の軸線方向に外筒12を挿入する
と、第５図（Ａ）に示す如くフレーム体16の左側面16C
と右側面16Dとの長さT1は内筒12の外径T2より小さいの
で、フレーム体16内に内筒12を挿入すると徐々に、第５
図（Ｂ）に示す如くフレーム体16の折曲している上面16
Aと下面16Bは平板状に伸びる。しかも、本実施例のフレ
ーム体16の上面16Aには切欠18が形成されているので、
フレーム体16内に外筒12を挿入すると容易に上面16Aを
平板状に伸ばすことができる。このため弾性体20には第
５図（Ｂ）矢印Ｂ方向の力が加わるので加硫接着時に引
っ張られた状態のままになっている弾性体20は逆方向に
押圧されるようになる。これにより弾性体20に作用して
いた引張力は相殺されて減少されるので弾性体20に亀裂
が生じることもなく、防振装置10の耐久性を向上させる
ことができる。And, one end of the tapered shape of the inner cylinder 12 in the frame body 16
When the outer cylinder 12 is inserted in the axial direction of the frame body 16 from 12A, as shown in FIG.
Since the length T1 between the inner cylinder 12 and the right side face 16D is smaller than the outer diameter T2 of the inner cylinder 12, when the inner cylinder 12 is inserted into the frame body 16, the fifth
The bent upper surface 16 of the frame body 16 as shown in FIG.
A and the lower surface 16B extend in a flat plate shape. Moreover, since the notch 18 is formed in the upper surface 16A of the frame body 16 of the present embodiment,
When the outer cylinder 12 is inserted into the frame body 16, the upper surface 16A can be easily extended in a flat plate shape. For this reason, a force is applied to the elastic body 20 in the direction of arrow B in FIG. 5 (B), so that the elastic body 20 that has been pulled during vulcanization bonding is pressed in the opposite direction. As a result, the tensile force acting on the elastic body 20 is canceled out and reduced, so that the elastic body 20 is not cracked and the durability of the vibration isolator 10 can be improved.

しかも、本実施例においては弾性体20から引張力を低
減させるために外筒14を外筒14の直径が短くなるように
絞ることもないので弾性体20の接着性が低下するような
ことも生じない。Moreover, in this embodiment, the outer cylinder 14 is not squeezed so as to reduce the diameter of the outer cylinder 14 in order to reduce the tensile force from the elastic body 20, so that the adhesiveness of the elastic body 20 may be reduced. Does not occur.

〔第２実施例〕 第６図（Ａ）、（Ｂ）には本発明に係る防振装置10の
第２実施例が示されている。Second Embodiment FIGS. 6 (A) and 6 (B) show a second embodiment of the vibration isolator 10 according to the present invention.

第２実施例はフレーム体16の形状を第１実施例のフレ
ーム体16の形状と変えたものである。In the second embodiment, the shape of the frame body 16 is changed from the shape of the frame body 16 of the first embodiment.

即ち、第６図（Ａ）に示す如く内筒12を挿入する前の
フレーム体16の断面形状を略菱形状に形成したものであ
る。このフレーム体16は本来は上面16A、左側面16B及び
右側面16Cの三面からなる三角柱であるが上面16Aをその
中央部で折り曲げたため断面形状が略菱状になってい
る。That is, as shown in FIG. 6 (A), the cross-sectional shape of the frame body 16 before the inner tube 12 is inserted is formed in a substantially rhombic shape. The frame body 16 is originally a triangular prism composed of three surfaces, that is, an upper surface 16A, a left side surface 16B, and a right side surface 16C. However, since the upper surface 16A is bent at the center thereof, the cross-sectional shape is substantially rhombic.

このようなフレーム体16に内筒12を嵌入させることに
より上面16Aの折曲部が伸びて、上面16Aが平板状にな
り、フレーム体16は第６図（Ｂ）に示す略三角形状にな
る。このため、弾性体20は夫々左側面16B、右側面16Cに
よって第６図（Ｂ）矢印Ａ方向に押圧されるので、弾性
体20に作用している引張力を減少させて防振装置10の耐
久性の向上を図ることができる。By fitting the inner cylinder 12 into such a frame body 16, the bent portion of the upper surface 16A extends, the upper surface 16A becomes a flat plate shape, and the frame body 16 becomes a substantially triangular shape shown in FIG. 6 (B). . For this reason, since the elastic body 20 is pressed in the direction of arrow A in FIG. 6B by the left side face 16B and the right side face 16C, the tensile force acting on the elastic body 20 is reduced, and The durability can be improved.

〔第３実施例〕 第７図（Ａ）、（Ｂ）には本発明に係る防振装置10の
第３実施例が示されている。Third Embodiment FIGS. 7A and 7B show a third embodiment of the vibration isolator 10 according to the present invention.

第３実施例も第２実施例と同様にフレーム体16の形状
を変えたものである。The third embodiment is similar to the second embodiment except that the shape of the frame body 16 is changed.

第７図（Ａ）で示す如く、本実施例のフレーム体16は
１枚の板材を折曲し、その端部16E、16Fを当接して断面
形状楕円状に形成したものである。As shown in FIG. 7 (A), the frame body 16 of the present embodiment is formed by bending a single plate material and abutting its ends 16E and 16F to form an elliptical cross section.

このようなフレーム体16に内筒12を嵌入させるとフレ
ーム体16はその端部16E、16Fが共に離間方向に移動し、
第７図（Ｂ）に示すような形状となる。これにより、弾
性体20はフレーム体16に矢印Ａ方向に押圧されるので、
弾性体20に作用している引張力を減少させて、防振装置
10の耐久性を向上させることができる。When the inner cylinder 12 is fitted into such a frame body 16, both ends 16E and 16F of the frame body 16 move in the separating direction,
The shape is as shown in FIG. 7 (B). As a result, the elastic body 20 is pressed by the frame body 16 in the direction of arrow A,
By reducing the tensile force acting on the elastic body 20, the vibration isolator
10 can improve the durability.

〔第４実施例〕 第８図（Ａ）、（Ｂ）には本発明に係る防振装置10の
第４実施例が示されている。Fourth Embodiment FIGS. 8A and 8B show a fourth embodiment of the vibration isolator 10 according to the present invention.

第４実施例も第２実施例、第３実施例と同様にフレー
ム体16の形状を変えたものである。In the fourth embodiment, the shape of the frame body 16 is changed similarly to the second and third embodiments.

第８図（Ａ）で示す如く、フレーム体16は３枚の湾曲
した板材16G、16H、16Iを断面形状楕円状になるように
配置して形成されている。As shown in FIG. 8 (A), the frame body 16 is formed by arranging three curved plate members 16G, 16H and 16I so as to have an elliptical cross section.

このようなフレーム体16に内筒12を嵌入させるとフレ
ーム体16を構成する板材16G、16H、16Iは第８図（Ｂ）
矢印Ａ方向に移動する。これにより、弾性体20はフレー
ム体16に押圧されるので、弾性体20に作用している引張
力を減少させて防振装置10の耐久性を向上させることが
できる。When the inner cylinder 12 is fitted into such a frame body 16, the plate members 16G, 16H and 16I constituting the frame body 16 are shown in FIG. 8 (B).
Move in the direction of arrow A. Thus, the elastic body 20 is pressed by the frame body 16, so that the tensile force acting on the elastic body 20 can be reduced, and the durability of the vibration isolator 10 can be improved.

なお、本実施例においては３個のすぐり部22を形成す
る必要上から弾性体20を３方向から掛け渡すようにした
ので、本実施例のようにすれば、３方向からの弾性体20
を夫々押圧することが可能となるが、形成するすぐり部
22の数に合わせてフレーム体16を構成する板材の数を変
えることができる。In the present embodiment, the elastic body 20 is stretched from three directions because of the necessity of forming the three bulges 22. Therefore, according to the present embodiment, the elastic body 20 from three directions is formed.
Can be pressed respectively, but the
The number of plate members constituting the frame body 16 can be changed in accordance with the number of 22.

また、第８図（Ｃ）に示す如くストツパーとしてのリ
ング40をフレーム体16の長手方向の端部に取り付けても
よい。Alternatively, a ring 40 as a stopper may be attached to the longitudinal end of the frame body 16 as shown in FIG. 8 (C).

〔第５実施例〕 第９図（Ａ）、（Ｂ）、（Ｃ）には本発明に係る防振
装置10の第５実施例が示されている。Fifth Embodiment FIGS. 9A, 9B and 9C show a fifth embodiment of the vibration isolator 10 according to the present invention.

本実施例はフレーム体16の拡径を内筒12を挿入するこ
とにより行なうのではなく、フレーム体16の拡径は別途
に用意された通し子50を用いて行なうものである。In this embodiment, the diameter of the frame body 16 is not expanded by inserting the inner cylinder 12, but the diameter of the frame body 16 is expanded by using a separately prepared penetrator 50.

第９図（Ａ）に示す如くフレーム体16は肉厚の薄いパ
イプ形状に形成されている。そして、第９図（Ｃ）に示
す如くフレーム体16に嵌入される通し子50は先端部の外
径寸法D1はフレーム体16の内径寸法R1より小さく形成さ
れているが、通し子50の中間部の外径寸法D2はフレーム
体16の内径寸法R1より大きく形成されている。As shown in FIG. 9 (A), the frame body 16 is formed in a thin pipe shape. As shown in FIG. 9 (C), the outer diameter D1 of the distal end of the penetrating member 50 fitted into the frame body 16 is formed smaller than the inner diameter dimension R1 of the frame member 16, but the intermediate part of the penetrating member 50 is provided. The outer diameter dimension D2 of the portion is formed larger than the inner diameter dimension R1 of the frame body 16.

従って、フレーム体16に通し子50を嵌入させてフレー
ム体16の内径を拡径した後に第９図（Ｂ）に示す如く内
筒12を圧入する。Accordingly, the inner tube 12 is press-fitted as shown in FIG. 9 (B) after the penetrator 50 is fitted into the frame body 16 to increase the inner diameter of the frame body 16.

これにより、弾性体20に作用している引張力を減少さ
せて防振装置10の耐久性を向上させるこのである。Thereby, the tensile force acting on the elastic body 20 is reduced, and the durability of the vibration isolator 10 is improved.

〔第６実施例〕 第10図（Ａ）、（Ｂ）には本発明に係る防振装置10の
第６実施例が示されている。Sixth Embodiment FIGS. 10A and 10B show a sixth embodiment of the vibration isolator 10 according to the present invention.

第６実施例は筒状体として第１実施例乃至第５実施例
において適用した外筒14を用いずにブラケツト60を外筒
14の代わりに用いてブラケツト60に弾性体20を直接加硫
したものである。The sixth embodiment uses a bracket 60 instead of the outer cylinder 14 applied in the first to fifth embodiments as a cylindrical body.
The elastic body 20 is directly vulcanized on a bracket 60 by using instead of 14.

また、図示はしないが、ブラケット60に第１実施例乃
至第５実施例の防振装置10を挿入して用いることができ
る。Although not shown, the anti-vibration device 10 of the first to fifth embodiments can be inserted into the bracket 60 and used.

なお、本発明は内部に液体を封入してその減衰作用も
利用する防振装置にも適用することができるのは勿論で
ある。The present invention can of course be applied to an anti-vibration device in which a liquid is sealed inside and the damping action is used.

〔発明の効果〕〔The invention's effect〕

以上説明した如く、本発明に係る防振装置では、第１
の内筒と筒状体の間に第２の内筒を配設し、第２の内筒
を変形させて、第２の内筒と筒状体との間に配設される
弾性体の長さを短くするようにしたので、弾性体の接着
剤を損なわずに防振装置の耐久性の向上を図ることがで
きるという優れた効果を有する。As described above, in the vibration isolator according to the present invention, the first
A second inner cylinder is disposed between the inner cylinder and the cylindrical body, and the second inner cylinder is deformed to form an elastic body disposed between the second inner cylinder and the cylindrical body. Since the length is shortened, there is an excellent effect that the durability of the vibration isolator can be improved without damaging the adhesive of the elastic body.

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

第１図乃至第５図（Ａ）、（Ｂ）は本発明に係る防振装
置の第１実施例を示し、第１図は防振装置の縦断面図、
第２図は第１図II−II線断面図、第３図はフレーム体の
全体斜視図、第４図はフレーム体の縦断面図、第５図
（Ａ）、（Ｂ）は作用説明図、第６図（Ａ）、（Ｂ）は
本発明に係る防振装置の第２実施例の断面図及び作用説
明図、第７図（Ａ）、（Ｂ）は本発明に係る防振装置の
第３実施例の断面図及び作用説明図、第８図（Ａ）、
（Ｂ）、（Ｃ）は本発明に係る防振装置の第４実施例の
断面図、作用説明図及びリングの取付状態図、第９図
（Ａ）、（Ｂ）、（Ｃ）は本発明に係る防振装置の第５
実施例の断面図、作用説明図及びフレーム体を拡径して
いる状態図、第10図（Ａ）、（Ｂ）は本発明に係る防振
装置の第６実施例の断面図及び作用説明図、第11図
（Ａ）、（Ｂ）は従来の防振装置の断面図及び作用説明
図である。 10……防振装置、 12……内筒、 14……外筒、 16……フレーム体、 20……弾性体、 60……ブラケツト。1 to 5 (A) and (B) show a first embodiment of the vibration isolator according to the present invention, and FIG. 1 is a longitudinal sectional view of the vibration isolator.
2 is a sectional view taken along the line II-II in FIG. 1, FIG. 3 is an overall perspective view of the frame body, FIG. 4 is a longitudinal sectional view of the frame body, and FIGS. 6 (A) and 6 (B) are a cross-sectional view and an operation explanatory view of a second embodiment of the vibration isolator according to the present invention, and FIGS. 7 (A) and 7 (B) are vibration isolator according to the present invention. FIG. 8 (A) is a sectional view and an operation explanatory view of the third embodiment,
(B) and (C) are a sectional view, an operation explanatory view, and a mounting state diagram of a ring of a fourth embodiment of the vibration damping device according to the present invention, and FIGS. 9 (A), (B) and (C) are books. Fifth vibration-damping device according to the invention
10A and 10B are a cross-sectional view and an operation explanatory view of the embodiment, and a state diagram in which the diameter of the frame body is expanded. FIGS. FIGS. 11 (A) and 11 (B) are a sectional view and an operation explanatory view of a conventional vibration isolator. 10: Vibration isolator, 12: Inner cylinder, 14: Outer cylinder, 16: Frame body, 20: Elastic body, 60: Bracket.

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】第１の内筒と、この第１の内筒の外側に第
１の内筒を包囲するように配設される第２の内筒と、こ
の第２の内筒の外側に第２の内筒を包囲するように配設
される筒状体と、第２の内筒と筒状体とに固着されて第
２の内筒と筒状体との間に配設される弾性体とを備え、
前記第２の内筒はこの第２の内筒と筒状体とに前記弾性
体が固着された後に第２の内筒と筒状体との間の弾性体
の長さを短くするように変形されてなることを特徴とす
る防振装置。1. A first inner cylinder, a second inner cylinder arranged outside the first inner cylinder so as to surround the first inner cylinder, and an outer side of the second inner cylinder. A cylindrical body disposed to surround the second inner cylinder, and a second cylindrical body fixed to the second inner cylinder and the cylindrical body, and disposed between the second inner cylinder and the cylindrical body. Elastic body,
The second inner cylinder reduces the length of the elastic body between the second inner cylinder and the cylindrical body after the elastic body is fixed to the second inner cylinder and the cylindrical body. An anti-vibration device characterized by being deformed. 【請求項２】第１の内筒を第２の内筒を挿入することに
より第２の内筒を変形させて第２の内筒と筒状体との間
の弾性体の長さを短くするようにしたことを特徴とする
請求項（１）記載の防振装置。2. The length of the elastic body between the second inner cylinder and the cylindrical body is reduced by inserting the first inner cylinder into the second inner cylinder to deform the second inner cylinder. The vibration isolator according to claim 1, wherein the vibration is reduced. 【請求項３】第２の内筒を変形させて第２の内筒と筒状
体との間の弾性体の長さを短くするようにした後に第２
の内筒に第１の内筒を挿入したことを特徴とする請求項
（１）記載の防振装置。3. The method according to claim 2, wherein the second inner cylinder is deformed to reduce the length of the elastic body between the second inner cylinder and the cylindrical body.
The vibration isolator according to claim 1, wherein the first inner cylinder is inserted into the inner cylinder.
JP63265860A 1988-10-21 1988-10-21 Anti-vibration device Expired - Fee Related JP2783409B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63265860A JP2783409B2 (en) 1988-10-21 1988-10-21 Anti-vibration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63265860A JP2783409B2 (en) 1988-10-21 1988-10-21 Anti-vibration device

Publications (2)

Publication Number Publication Date
JPH02113137A JPH02113137A (en) 1990-04-25
JP2783409B2 true JP2783409B2 (en) 1998-08-06

Family

ID=17423090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63265860A Expired - Fee Related JP2783409B2 (en) 1988-10-21 1988-10-21 Anti-vibration device

Country Status (1)

Country Link
JP (1) JP2783409B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713731B1 (en) * 1993-12-09 1996-02-09 Hutchinson Improvement to hydraulic anti-vibration supports and their manufacturing processes.
US5865429A (en) * 1994-05-18 1999-02-02 Caoutchouc Manufacture Et Plastiques Elastic support including at least two cylindrical sleeves with folds
FR2720132B1 (en) * 1994-05-18 1996-07-26 Caoutchouc Manuf Plastique Elastic support comprising at least two coaxial cylindrical sleeves linked together by an elastic material, sleeves for such a support and method of manufacturing said support.
FR2739153A1 (en) * 1995-09-27 1997-03-28 Peugeot Elastic pivot joint for suspension of motor vehicle
US5775810A (en) * 1995-12-26 1998-07-07 Samsung Electric-Mechanics Co. Ltd. Ferrite device for sensing temperature
FR2853379B1 (en) * 2003-04-01 2006-06-16 Michelin Avs METHOD FOR APPLYING A COMPRESSION PRECONTROLLER TO AN ELASTIC JOINT
WO2005001305A2 (en) * 2003-06-10 2005-01-06 Cooper-Standard Automotive Inc. A vibration isolator assembly having altered stress characteristics and method of altering stress characteristics of same
JPWO2006025086A1 (en) * 2004-08-30 2008-05-08 東洋ゴム工業株式会社 Rubber bush
DE102007038493B4 (en) * 2007-08-14 2012-10-04 Zf Friedrichshafen Ag Elastomeric bush bearing with hydraulic damping
DE102016123501B4 (en) * 2016-12-05 2020-11-26 Vibracoustic Gmbh Core and bearing comprising such a core
DE102019000973B4 (en) * 2019-02-11 2022-04-28 Sumitomo Riko Company Limited Vibration isolation bearing and method of manufacture

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Publication number Priority date Publication date Assignee Title
JPS54168856U (en) * 1978-05-18 1979-11-28

Also Published As

Publication number Publication date
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