JPH0960675A - Bush - Google Patents

Bush

Info

Publication number
JPH0960675A
JPH0960675A JP21763595A JP21763595A JPH0960675A JP H0960675 A JPH0960675 A JP H0960675A JP 21763595 A JP21763595 A JP 21763595A JP 21763595 A JP21763595 A JP 21763595A JP H0960675 A JPH0960675 A JP H0960675A
Authority
JP
Japan
Prior art keywords
cylinder
flange
bush
rubber elastic
intermediate cylinder
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
JP21763595A
Other languages
Japanese (ja)
Inventor
Masaru Yamazaki
勝 山崎
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.)
Hokushin Industries Corp
Hokushin Industry Co Ltd
Original Assignee
Hokushin Industries Corp
Hokushin Industry Co Ltd
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 Hokushin Industries Corp, Hokushin Industry Co Ltd filed Critical Hokushin Industries Corp
Priority to JP21763595A priority Critical patent/JPH0960675A/en
Publication of JPH0960675A publication Critical patent/JPH0960675A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a bush which improves durability and sufficiently ensure rigidity in the axial direction of a flange and has a spring characteristic of a direction perpendicular to an axis which is uniform in all directions. SOLUTION: A bush 10 has a structure of the triple cylinders of an outer cylinder 18, a intermediate cylinder 12 and an inner cylinder 16. Rubber elastic body 21 is vulcanized between the intermediate cylinder 12 and the inner cylinder 16 and rubber elastic material 22 integrated with the rubber elastic body 21 is vulcanized between the outer cylinder 18 and the intermediate cylinder 12. Since three through holes 14A are made in the circumferential wall 14 of the intermediate cylinder 12 along the circumferential direction at equal intervals, when the bush is spun, sufficient compression force is applied on the rubber elastic body 21 via the through hole 14A.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、フランジを備えた
ブッシュに関するものであり、より詳しくは、耐久性の
向上を図れると共にフランジの軸方向の剛性を充分に確
保でき、かつ、軸直角方向のバネ特性に方向性のないブ
ッシュに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bush provided with a flange. More specifically, the present invention can improve durability and sufficiently secure the rigidity of the flange in the axial direction. The present invention relates to a bush having no directionality in spring characteristics.

【0002】[0002]

【従来技術】例えば、自動車のアッパーアームやロアア
ーム等に使用されるブッシュ30は、図6に示す如く、
外筒32、中間筒34、内筒36を備えており、中間筒
34と内筒36との間にゴム部材38が、外筒32と中
間筒34との間にゴム部材40が加硫接着されてなるも
のである。
2. Description of the Related Art For example, a bush 30 used for an upper arm or a lower arm of an automobile is as shown in FIG.
An outer cylinder 32, an intermediate cylinder 34, and an inner cylinder 36 are provided. A rubber member 38 is vulcanized and bonded between the intermediate cylinder 34 and the inner cylinder 36, and a rubber member 40 is vulcanized and bonded between the outer cylinder 32 and the intermediate cylinder 34. It has been done.

【0003】この種のブッシュ30においては、軸方向
のバネ特性を向上させて、操安性や乗り心地を良好なも
のとするために、外筒32、中間筒34、内筒36の各
々にフランジ32A、34A、36Aを形成し、各々の
フランジ間にゴム部材38、40が加硫接着された状態
で延出されている。
In this type of bush 30, the outer cylinder 32, the intermediate cylinder 34, and the inner cylinder 36 are respectively provided in order to improve the spring characteristics in the axial direction and to improve the maneuverability and ride comfort. The flanges 32A, 34A, 36A are formed, and the rubber members 38, 40 extend between the respective flanges in a vulcanized and bonded state.

【0004】上記のブッシュ30では、耐久性の向上を
図るために絞り加工が施される。そして、この絞り加工
による耐久性の向上をより発揮させるために、図7及び
図8に示す如く、中間筒34の周壁34Bからフランジ
34Aの外縁部までにわたって一対の、すなわち、偶数
個のスリット34Cを形成しておき絞り加工の際にゴム
部材38にスリット34Cを介して充分な絞り力が付与
されるようになっている。
The bush 30 is drawn to improve its durability. Then, in order to further improve the durability due to this drawing, as shown in FIGS. 7 and 8, a pair of, that is, an even number of slits 34C extending from the peripheral wall 34B of the intermediate cylinder 34 to the outer edge of the flange 34A. Is formed in advance, and a sufficient drawing force is applied to the rubber member 38 through the slit 34C during drawing.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、上記の
従来のブッシュでは、中間筒34のフランジ34Aにス
リット34Cが形成されているため、軸方向(図6左右
方向)バネの剛性が弱くなり、充分な耐久性を得るのは
困難である。また、上記のブッシュ30においては、軸
直角方向(図6上下方向)のバネ特性が方向性のないこ
とが要請される。
However, in the above-mentioned conventional bush, since the slit 34C is formed in the flange 34A of the intermediate cylinder 34, the rigidity of the spring in the axial direction (left and right direction in FIG. 6) is weakened, which is sufficient. It is difficult to obtain good durability. Further, in the bush 30 described above, it is required that the spring characteristic in the direction perpendicular to the axis (vertical direction in FIG. 6) has no directivity.

【0006】[0006]

【発明の目的】そこで、本発明の目的は、耐久性の向上
を図れると共にフランジの軸方向の剛性を充分に確保で
き、かつ、軸直角方向のバネ特性に方向性のないブッシ
ュを提供することにある。
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a bush which can improve the durability, can sufficiently secure the rigidity of the flange in the axial direction, and has no directivity in the spring characteristic in the direction perpendicular to the axis. It is in.

【0007】[0007]

【課題を解決するための手段】本発明は、上記目的を達
成するために提案されたものであって、下記の構成から
なることに特徴を有するものである。すなわち、本発明
によれば、一方の端部にフランジが形成された第1筒体
と、この第1筒体内に第1筒体と同心的に設けられ前記
第1筒体と同一側の端部に前記第1筒体のフランジと対
向した状態にフランジが形成された第2筒体と、前記第
1筒体と第2筒体との間に各々の周壁及び前記各々のフ
ランジに密着状態で設けられたゴム弾性体と、を備えた
ブッシュであって、前記第1筒体の周壁にその周方向に
沿って略等間隔に3個以上の奇数個の貫通穴が形成され
てなることを特徴とするブッシュが提供される。
The present invention has been proposed to achieve the above object, and is characterized by having the following configuration. That is, according to the present invention, a first cylinder having a flange formed at one end thereof, and an end on the same side as the first cylinder provided concentrically with the first cylinder in the first cylinder. A second cylindrical body having a flange formed in a portion thereof so as to face the flange of the first cylindrical body, and a state in which the first cylindrical body and the second cylindrical body are in close contact with each peripheral wall and each flange. And a rubber elastic body provided in 1., wherein three or more odd-numbered through holes are formed in the peripheral wall of the first cylindrical body at substantially equal intervals along the circumferential direction thereof. Is provided.

【0008】また、本発明によれば、請求項1記載のブ
ッシュであって、第1筒体の外方に第1筒体と同心的に
設けられ前記第1筒体と同一側の端部に前記第1筒体の
フランジと対向した状態にフランジが形成された第3筒
体と、前記第1筒体と第3筒体との間に各々の周壁及び
各々のフランジに密着状態とされたゴム弾性部材と、が
設けられてなるブッシュが提供される。
Further, according to the present invention, in the bush according to claim 1, the bush is provided outside the first tubular body concentrically with the first tubular body, and an end portion on the same side as the first tubular body. A third cylindrical body having a flange formed so as to face the flange of the first cylindrical body, and a peripheral wall between the first cylindrical body and the third cylindrical body and a close contact state with each flange. And a rubber elastic member.

【0009】[0009]

【発明の実施の形態】請求項1の発明に係るブッシュ
は、第1筒体と、この第1筒体の内方に同心的に設けら
れた第2筒体と、第1筒体と第2筒体との間に各々の周
壁及び前記各々のフランジに密着状態で設けられたゴム
弾性体と、によって構成されている。さらに、本発明で
は、第1筒体の周壁にその周方向に沿って略等間隔に3
個以上の奇数個の貫通穴が形成されている。すなわち、
本発明では、従来とは異なり、周壁からフランジまで延
出され開口したスリットは形成されておらず、周壁内に
おいて貫通穴が形成されている。また、本発明では、フ
ランジには、切り欠かれた部分が存在しないため、軸方
向入力に対する剛性が高くなり、よって、低い硬度のゴ
ム弾性体で、バネ特性を高くできる。
DESCRIPTION OF THE PREFERRED EMBODIMENTS A bush according to the invention of claim 1 is a first cylinder, a second cylinder concentrically provided inside the first cylinder, a first cylinder and a second cylinder. A rubber elastic body provided in close contact with each peripheral wall and each flange between the two cylindrical bodies. Further, according to the present invention, the first cylindrical body is provided with three circumferential walls at substantially equal intervals along the circumferential direction.
An odd number of or more through holes are formed. That is,
In the present invention, unlike the prior art, the slit that extends from the peripheral wall to the flange and is open is not formed, but the through hole is formed in the peripheral wall. Further, in the present invention, since the flange does not have a notched portion, the rigidity with respect to the axial input is increased, and therefore, the rubber elastic body having a low hardness can improve the spring characteristics.

【0010】しかも、本発明では、貫通穴が、第1筒体
の周方向に沿って等間隔に3個以上の奇数個設けられて
いるため、軸直角方向のバネ特性に方向性がでるのを抑
制できる。また、本発明では、第1筒体に貫通穴が形成
されているため、絞り加工を施すと、貫通穴を介して、
圧縮力がゴム弾性体に充分な圧縮力が加わるため、耐久
性が向上する。また、請求項1の発明では、第1筒体と
第2筒体にフランジが形成され、これらフランジ間にゴ
ム弾性体が加硫接着されているので、軸方向ばね定数が
高くなり、ブッシュを自動車に用いた場合に、操安定性
が向上する。
Moreover, in the present invention, since the through holes are provided in an odd number of 3 or more at equal intervals along the circumferential direction of the first cylindrical body, the spring characteristic in the direction perpendicular to the axis has a directivity. Can be suppressed. Further, in the present invention, since the through hole is formed in the first cylindrical body, when the drawing process is performed, the through hole is formed through the through hole.
Since a sufficient compression force is applied to the rubber elastic body, durability is improved. Further, in the invention of claim 1, since the flange is formed on the first cylinder and the second cylinder and the rubber elastic body is vulcanized and bonded between these flanges, the axial spring constant is increased and the bush is When used in an automobile, steering stability is improved.

【0011】請求項1の発明において、貫通穴の大きさ
は、ゴム弾性体の材質等によっても異なるが、通常、軸
方向長さが10ないし20mm、軸直角方向長さが5な
いし10mmとするのが、絞り加工による耐久性を向上
させる点において好ましい。また、貫通穴の形状は、矩
形状、だ円形状等、特に限定されないが、ブッシュの軸
方向へ細長く形成するのが、絞り加工の点で好ましい。
According to the first aspect of the present invention, the size of the through hole varies depending on the material of the rubber elastic body and the like, but normally the axial length is 10 to 20 mm, and the orthogonal direction length is 5 to 10 mm. Are preferable from the viewpoint of improving the durability by drawing. Further, the shape of the through hole is not particularly limited, such as a rectangular shape and an elliptical shape, but it is preferable to form the through hole to be elongated in the axial direction of the bush in terms of drawing.

【0012】また、ゴム弾性体に使用する材料として
は、天然ゴム、天然ゴムとブタジエンゴムとのブレン
ド、天然ゴムとフタジエン・スチレンゴムとのブレンド
等を例示できるが、天然ゴムとブタジエンゴムとのブレ
ンドを使用するのが、振動特性の点で好ましい。また、
ゴム弾性体の硬度は、JIS A HS 50ないし70、特
に、HS 50ないし55とするのが、振動特性の点で好
ましい。
Examples of the material used for the rubber elastic body include natural rubber, blends of natural rubber and butadiene rubber, blends of natural rubber and phthaladien / styrene rubber, and the like. It is preferable to use a blend in terms of vibration characteristics. Also,
The hardness of the rubber elastic body is preferably JIS A H S 50 to 70, particularly H S 50 to 55, from the viewpoint of vibration characteristics.

【0013】また、請求項2の発明に係るブッシュは、
第1筒体の外方に第1筒体と同心的に第3筒体が設けら
れており、第1筒体と第3筒体との間に各々の周壁及び
各々のフランジにゴム弾性部材が密着されている。すな
わち、本発明では、第2筒体と第3筒体との間に、第1
筒体が介在される構成なので、軸直角方向に対するバネ
定数を高くでき、例えば、ブッシュを自動車に使用した
場合に、操安性が良好となる。また、ねじり方向のバネ
定数は小さくなるので、乗り心地性が良くなる。
The bush according to the invention of claim 2 is
A third tubular body is provided outside the first tubular body concentrically with the first tubular body, and a rubber elastic member is provided on each peripheral wall and each flange between the first tubular body and the third tubular body. Are closely attached. That is, in the present invention, the first cylinder is provided between the second cylinder and the third cylinder.
Since the cylindrical body is interposed, the spring constant in the direction perpendicular to the axis can be increased, and, for example, when the bush is used in an automobile, the maneuverability is improved. Further, since the spring constant in the twisting direction becomes small, the riding comfort is improved.

【0014】[0014]

【実施例】以下に本発明の実施例を、図1ないし図3を
用いて説明する。図1に示す如く、ブッシュ10は、第
1筒体としての中間筒12を備えており、この中間筒1
2には、一方の端部にフランジ13が形成されている。
また、中間筒12の周壁14には、図3にも示す如く、
矩形状の貫通穴14Aが形成されており、この貫通穴1
4Aは、中間筒12の周方向に沿って等間隔に図2に示
す如く、3個形成されている。
Embodiments of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the bush 10 includes an intermediate cylinder 12 as a first cylindrical body.
The flange 13 has a flange 13 formed at one end.
Further, as shown in FIG. 3, the peripheral wall 14 of the intermediate cylinder 12 is
A rectangular through hole 14A is formed, and this through hole 1
As shown in FIG. 2, three 4A are formed at equal intervals along the circumferential direction of the intermediate cylinder 12.

【0015】また、中間筒12の内方には、中間筒12
と同心的に、すなわち、中間筒12と軸芯を同一にした
状態に第2筒体としての内筒16が設けられている。内
筒16は、中間筒12のフランジ13と対向した状態
に、フランジ17が形成されている。また、中間筒12
の外方には、中間筒12と同心的に、すなわち、中間筒
12と軸芯を同一にした状態に第3筒体としての外筒1
8が設けられている。外筒18には、中間筒12のフラ
ンジ13に対向した状態にフランジ19が設けられてい
る。
Further, inside the intermediate cylinder 12, the intermediate cylinder 12
The inner cylinder 16 as the second cylinder is provided concentrically with the intermediate cylinder 12, that is, in a state where the shaft center is the same as that of the intermediate cylinder 12. A flange 17 is formed on the inner cylinder 16 so as to face the flange 13 of the intermediate cylinder 12. In addition, the intermediate cylinder 12
Of the outer cylinder 1 concentric with the intermediate cylinder 12, that is, in a state where the axis of the intermediate cylinder 12 is the same as that of the intermediate cylinder 12.
8 are provided. A flange 19 is provided on the outer cylinder 18 so as to face the flange 13 of the intermediate cylinder 12.

【0016】外筒18と中間筒12との間、及び中間筒
12と内筒16との間に、ゴム部材20が加硫接着され
ている。ゴム部材20は、中間筒12と内筒16との間
のゴム弾性体21と、外筒18と中間筒12との間のゴ
ム弾性部材22とが一体となって構成されるものであ
る。このゴム部材20は、外筒18、中間筒12、及び
内筒16の各々の周壁18A、14、16Aに密着され
ると共に、各々のフランジ19、フランジ13、及びフ
ランジ17の各々に密着された状態で加硫接着されてい
る。ゴム部材20の材質としては、天然ゴムとブタジエ
ンゴムとのブレンドを使用している。
A rubber member 20 is vulcanized and bonded between the outer cylinder 18 and the intermediate cylinder 12 and between the intermediate cylinder 12 and the inner cylinder 16. The rubber member 20 is configured by integrally forming a rubber elastic body 21 between the intermediate cylinder 12 and the inner cylinder 16 and a rubber elastic member 22 between the outer cylinder 18 and the intermediate cylinder 12. The rubber member 20 is in close contact with the peripheral walls 18A, 14 and 16A of the outer cylinder 18, the intermediate cylinder 12 and the inner cylinder 16 and also in close contact with the respective flanges 19, 13, and 17. It is vulcanized and adhered. As the material of the rubber member 20, a blend of natural rubber and butadiene rubber is used.

【0017】上記の如く構成されたブッシュ10は、耐
久性を向上させるために、絞り型により、絞り加工がな
される。この絞り加工に際しては、ゴム部材20の中間
筒12と内筒16との間に位置する部位(ゴム弾性体2
1)に、貫通穴14Aを介して充分な絞り力が付与でき
るため、耐久性がより向上する。なお、ブッシュの寸法
は、以下のように設定した。すなわち、外筒18は、外
径を42mm、軸線方向長さを17mm、肉厚を1.8mm、
内筒16は、外径を24mm、内径を19mm、軸線方向寸
法を30mm、フランジ17の外径寸法を43mmとした。
また、中間筒12は、外径を32mm、軸線方向長さを2
4mm、肉厚を1.2mm、フランジ13の外径を50mm、
貫通穴14Aを8mm×10mmとした。
The bush 10 constructed as described above is drawn by a drawing die in order to improve durability. At the time of this drawing, a portion (rubber elastic body 2) located between the intermediate cylinder 12 and the inner cylinder 16 of the rubber member 20.
Since sufficient drawing force can be applied to 1) through the through hole 14A, the durability is further improved. The dimensions of the bush were set as follows. That is, the outer cylinder 18 has an outer diameter of 42 mm, an axial length of 17 mm, and a wall thickness of 1.8 mm.
The inner cylinder 16 has an outer diameter of 24 mm, an inner diameter of 19 mm, an axial dimension of 30 mm, and an outer diameter dimension of the flange 17 of 43 mm.
The intermediate cylinder 12 has an outer diameter of 32 mm and an axial length of 2
4 mm, wall thickness 1.2 mm, flange 13 outer diameter 50 mm,
The through hole 14A was 8 mm × 10 mm.

【0018】上記の如く構成されたブッシュの軸方向
(図1左右方向)バネ特性を図4に実線で示した。ま
た、軸直角方向バネ特性を、図2の上下方向及び図2左
右方向の2方向において測定し、図5に実線で示した。
ただし、両方向ともに、バネ特性は一致しており、一本
の実線で軸直角方向のバネ特性が示されている。また、
図6に示す従来例のブッシュの軸方向バネ特性を図4に
破線で示した。また、軸直角方向バネ特性を、図7の上
下方向及び図7左右方向において測定し、図5に破線で
示す。ただし、図7の上下方向に対するバネ特性は、実
施例と一致したため、実施例と重なり実線となってい
る。
The axial (horizontal direction in FIG. 1) spring characteristics of the bush constructed as described above are shown by the solid line in FIG. Further, the spring characteristic in the direction perpendicular to the axis was measured in two directions, that is, the vertical direction in FIG. 2 and the horizontal direction in FIG. 2, and is shown by a solid line in FIG.
However, the spring characteristics are the same in both directions, and one solid line shows the spring characteristics in the direction perpendicular to the axis. Also,
The axial spring characteristic of the conventional bush shown in FIG. 6 is shown by the broken line in FIG. Further, the spring characteristic in the direction perpendicular to the axis was measured in the vertical direction of FIG. 7 and the horizontal direction of FIG. 7, and is shown by a broken line in FIG. However, since the spring characteristics in the vertical direction in FIG. 7 are the same as those of the embodiment, they are overlapped with the embodiment and are shown by a solid line.

【0019】図4から、実線で示す実施例の方が、従来
例に比較して軸直角方向に対する剛性が高いことが明ら
かとなった。また、図5から、本実施例では、軸直角方
向のバネ特性に方向性がでないのに対して、従来例で
は、方向性があることが明らかとなった。
From FIG. 4, it is clear that the embodiment shown by the solid line has higher rigidity in the direction perpendicular to the axis than the conventional example. Further, it is clear from FIG. 5 that the spring characteristic in the direction perpendicular to the axis has no directivity in the present embodiment, whereas the conventional example has directivity.

【0020】上記実施例では、外筒18、中間筒12及
び内筒16が設けられた3重筒によって構成されたブッ
シュについて説明しているが、外筒18を設けることな
く、中間筒12と内筒16との間に、ゴム弾性体21を
介在させた二重筒のブッシュにも適用できる。
In the above embodiment, the bush constituted by the triple cylinder provided with the outer cylinder 18, the intermediate cylinder 12 and the inner cylinder 16 is described. It is also applicable to a double-cylinder bush in which the rubber elastic body 21 is interposed between the bush and the inner cylinder 16.

【0021】[0021]

【発明の効果】本発明によれば、耐久性の向上を図れる
と共にフランジの軸方向の剛性を充分に確保でき、か
つ、軸直角方向のバネ特性に方向性のないブッシュを提
供することができる。
As described above, according to the present invention, it is possible to provide a bush which can improve the durability, can sufficiently secure the rigidity of the flange in the axial direction, and has no directionality in the spring characteristic in the direction perpendicular to the axis. .

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

【図1】本発明の一実施例に係るブッシュの断面図であ
る。
FIG. 1 is a sectional view of a bush according to an embodiment of the present invention.

【図2】図1のブッシュの一部を構成する中間筒をその
軸線方向から見た図である。
FIG. 2 is a view of an intermediate cylinder forming a part of the bush of FIG. 1 as viewed from the axial direction thereof.

【図3】図2の一部を断面とする側面図である。FIG. 3 is a side view showing a part of FIG. 2 as a cross section.

【図4】ブッシュの軸方向バネ特性を示すグラフであ
る。
FIG. 4 is a graph showing an axial spring characteristic of a bush.

【図5】ブッシュの軸直角方向バネ特性を示すグラフで
ある。
FIG. 5 is a graph showing a spring characteristic of a bush in a direction perpendicular to an axis.

【図6】従来のブッシュの断面図である。FIG. 6 is a cross-sectional view of a conventional bush.

【図7】図6のブッシュの一部を構成する中間筒をその
軸線方向から見た図である。
7 is a view of an intermediate cylinder forming a part of the bush of FIG. 6 as viewed from the axial direction thereof.

【図8】図7の一部を断面とする側面図である。FIG. 8 is a side view showing a part of FIG. 7 as a cross section.

【符号の説明】 10 ブッシュ 12 中間筒(第1筒体) 13 フランジ 16 内筒(第2筒体) 17 フランジ 18 外筒(第3筒体) 19 フランジ 20 ゴム部材 21 ゴム弾性体 22 ゴム弾性部材[Explanation of Codes] 10 Bush 12 Intermediate Cylinder (First Cylinder) 13 Flange 16 Inner Cylinder (Second Cylinder) 17 Flange 18 Outer Cylinder (3rd Cylinder) 19 Flange 20 Rubber Member 21 Rubber Elastic Body 22 Rubber Elasticity Element

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 一方の端部にフランジが形成された第1
筒体と、この第1筒体内に第1筒体と同心的に設けられ
前記第1筒体と同一側の端部に前記第1筒体のフランジ
と対向した状態にフランジが形成された第2筒体と、前
記第1筒体と第2筒体との間に各々の周壁及び前記各々
のフランジに密着状態で設けられたゴム弾性体と、を備
えたブッシュであって、前記第1筒体の周壁にその周方
向に沿って略等間隔に3個以上の奇数個の貫通穴が形成
されてなることを特徴とするブッシュ。
1. A first member having a flange formed at one end thereof.
A tubular body, and a flange formed concentrically with the first tubular body in the first tubular body and having a flange formed at an end portion on the same side as the first tubular body so as to face the flange of the first tubular body. A bush comprising: two cylindrical bodies; and a rubber elastic body provided between the first cylindrical body and the second cylindrical body in close contact with each peripheral wall and each flange, the bush comprising: A bush characterized in that an odd number of three or more through holes are formed in a circumferential wall of a cylindrical body at substantially equal intervals along the circumferential direction.
【請求項2】 第1筒体の外方に第1筒体と同心的に設
けられ前記第1筒体と同一側の端部に前記第1筒体のフ
ランジと対向した状態にフランジが形成された第3筒体
と、前記第1筒体と第3筒体との間に各々の周壁及び各
々のフランジに密着状態とされたゴム弾性部材と、が設
けられてなる請求項1記載のブッシュ。
2. A flange is formed outside the first cylinder concentrically with the first cylinder, and a flange is formed at an end portion on the same side as the first cylinder so as to face the flange of the first cylinder. The third cylindrical body, and a rubber elastic member in close contact with each peripheral wall and each flange are provided between the first cylindrical body and the third cylindrical body. bush.
JP21763595A 1995-08-25 1995-08-25 Bush Pending JPH0960675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21763595A JPH0960675A (en) 1995-08-25 1995-08-25 Bush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21763595A JPH0960675A (en) 1995-08-25 1995-08-25 Bush

Publications (1)

Publication Number Publication Date
JPH0960675A true JPH0960675A (en) 1997-03-04

Family

ID=16707363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21763595A Pending JPH0960675A (en) 1995-08-25 1995-08-25 Bush

Country Status (1)

Country Link
JP (1) JPH0960675A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004025138A1 (en) * 2002-09-06 2004-03-25 ZF Lemförder Metallwaren AG Elastic rubber bearing
JP2004148999A (en) * 2002-10-30 2004-05-27 Tokai Rubber Ind Ltd Suspension bushing
CN103244593A (en) * 2013-05-31 2013-08-14 安徽中鼎减震橡胶技术有限公司 Bushing assembly of rear suspension system
JP2018135935A (en) * 2017-02-21 2018-08-30 トヨタ自動車株式会社 Bush including inter-ring
DE102019109608A1 (en) * 2019-04-11 2020-10-15 Vibracoustic Ag Elastic bearing

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004025138A1 (en) * 2002-09-06 2004-03-25 ZF Lemförder Metallwaren AG Elastic rubber bearing
US6997614B2 (en) 2002-09-06 2006-02-14 ZF Lemförder Metallwaren AG Elastic rubber bearing
JP2004148999A (en) * 2002-10-30 2004-05-27 Tokai Rubber Ind Ltd Suspension bushing
CN103244593A (en) * 2013-05-31 2013-08-14 安徽中鼎减震橡胶技术有限公司 Bushing assembly of rear suspension system
JP2018135935A (en) * 2017-02-21 2018-08-30 トヨタ自動車株式会社 Bush including inter-ring
DE102019109608A1 (en) * 2019-04-11 2020-10-15 Vibracoustic Ag Elastic bearing
CN111810565A (en) * 2019-04-11 2020-10-23 威巴克股份公司 Elastic support
EP3744996A1 (en) * 2019-04-11 2020-12-02 Vibracoustic AG Elastic bearing
US11022195B2 (en) 2019-04-11 2021-06-01 Vibracoustic Ag Elastic mount
DE102019109608B4 (en) * 2019-04-11 2021-06-24 Vibracoustic Ag Elastic bearing

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