JPH11173371A - Cylindrical bush and manufacture thereof - Google Patents

Cylindrical bush and manufacture thereof

Info

Publication number
JPH11173371A
JPH11173371A JP34092997A JP34092997A JPH11173371A JP H11173371 A JPH11173371 A JP H11173371A JP 34092997 A JP34092997 A JP 34092997A JP 34092997 A JP34092997 A JP 34092997A JP H11173371 A JPH11173371 A JP H11173371A
Authority
JP
Japan
Prior art keywords
stopper
inner cylinder
cylinder
outer cylinder
shape
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP34092997A
Other languages
Japanese (ja)
Inventor
Akihiko Kato
明彦 加藤
Yoshiya Fujiwara
義也 藤原
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.)
Kinugawa Rubber Industrial Co Ltd
Original Assignee
Kinugawa Rubber Industrial 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 Kinugawa Rubber Industrial Co Ltd filed Critical Kinugawa Rubber Industrial Co Ltd
Priority to JP34092997A priority Critical patent/JPH11173371A/en
Publication of JPH11173371A publication Critical patent/JPH11173371A/en
Pending legal-status Critical Current

Links

Landscapes

  • Combined Devices Of Dampers And Springs (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a stopper having high dimensional accuracy even if its shape becomes complicated. SOLUTION: A barlike member 17 having a fixed longitudinal cross section is formed by extrusion molding of aluminum. This barlike member 17 is cut to a predetermined length to form a stopper 4 to be press-fitted into an inner cylinder. Consequently, it is possible to provide the stopper 4 having high dimensional accuracy, even if a shape of a contact face of the stopper 4 is complicated.

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、円筒型ブッシュに
係り、特に内筒に固定されるストッパーに関する。
The present invention relates to a cylindrical bush, and more particularly, to a stopper fixed to an inner cylinder.

【0002】[0002]

【従来の技術】円筒型ブッシュは、振動伝達を防ぐため
に車両のサスペンション等に配設されている。一般的な
円筒型ブッシュの概略構成は、円筒形の外筒内部に、円
筒形の内筒が配置され、この内筒両端の外周面と、外筒
の両端の内周面とが、略円環状のゴム弾性体によって連
結されたものとなっている。上記内筒の中央部には、図
8に示すように、上記内筒32の外径に略等しい貫通孔
36を有する板状のストッパー31が圧入され固定され
ている。上記貫通孔36を中心として180度対称方向
に突出した上記ストッパー31の先端部は、図示せぬ外
筒内周面に対向するように近接している。この先端部の
当たり面34の中央部には、図9、図10に示すよう
に、さらに図示せぬ外筒内周面に向かって略矩形状に突
き出した突出部37が形成されている。また、上記当た
り面34は、ゴム弾性部材33によって覆われている。
2. Description of the Related Art A cylindrical bush is provided on a vehicle suspension or the like to prevent vibration transmission. The general configuration of a general cylindrical bush is such that a cylindrical inner cylinder is disposed inside a cylindrical outer cylinder, and the outer peripheral surfaces at both ends of the inner cylinder and the inner peripheral surfaces at both ends of the outer cylinder are substantially circular. They are connected by an annular rubber elastic body. As shown in FIG. 8, a plate-like stopper 31 having a through-hole 36 substantially equal to the outer diameter of the inner cylinder 32 is press-fitted and fixed to the center of the inner cylinder. The tip of the stopper 31 protruding in the 180-degree symmetrical direction about the through hole 36 is close to the inner peripheral surface of the outer cylinder (not shown). As shown in FIGS. 9 and 10, a projecting portion 37 is formed at the center of the contact surface 34 at the tip end portion, which protrudes in a substantially rectangular shape toward the inner peripheral surface of the outer cylinder (not shown). The contact surface 34 is covered with a rubber elastic member 33.

【0003】そして、上記内筒32が荷重を受けると、
外筒と内筒とを連結する略円環状のゴム弾性体を弾性変
形させながら図示せぬ外筒内周面に向かって変位すると
共に、この変位量が大きいと上記当たり面34の突出部
37が上記ゴム弾性部材33を介して図示せぬ外筒内周
面に突き当たり上記ゴム弾性体の過度な弾性変形を規制
している。
When the inner cylinder 32 receives a load,
While deforming toward the inner peripheral surface of the outer cylinder (not shown) while elastically deforming the substantially annular rubber elastic body connecting the outer cylinder and the inner cylinder, if the amount of displacement is large, the protrusion 37 Abuts on the inner peripheral surface of the outer cylinder (not shown) via the rubber elastic member 33 to restrict excessive elastic deformation of the rubber elastic body.

【0004】このような、従来の円筒型ブッシュにおい
ては、上記当たり面34の突出部37の高さ、すなわち
図9中のA寸法をチューニングすることにより、上記ゴ
ム弾性部材33が図示せぬ外筒内周面に当接して変形す
る時の、動バネ特性と、ゴム弾性部材33の耐久性とが
決定される。つまり、ストッパー31の当たり面34の
寸法精度が、性能上要求されている。また、ストッパー
31の動バネ特性や耐久性を向上させるために、端部3
5の曲率を小さくし上記当たり面34の形状を複雑にし
たものが多くなってきている。
In such a conventional cylindrical bush, the height of the protrusion 37 of the contact surface 34, that is, the dimension A in FIG. 9 is tuned so that the rubber elastic member 33 is not shown. The dynamic spring characteristics and the durability of the rubber elastic member 33 when the rubber elastic member 33 is deformed by contacting the inner peripheral surface of the cylinder are determined. That is, the dimensional accuracy of the contact surface 34 of the stopper 31 is required for performance. In order to improve the dynamic spring characteristics and durability of the stopper 31,
5, the curvature of the contact surface 34 is reduced and the shape of the contact surface 34 is complicated.

【0005】このようなストッパー31の製造方法は、
プレス加工により打ち抜いて製作する方法(例えば、特
開平7−71511号公報を参照)、樹脂によって型成
形する方法(例えば、実公平8−1309号公報を参
照)及び、鋳物やダイキャストによって製作する方法が
知られている。
A method for manufacturing such a stopper 31 is as follows.
A method of manufacturing by punching by press working (for example, see Japanese Patent Application Laid-Open No. 7-71511), a method of molding with a resin (for example, see Japanese Utility Model Publication No. 8-1309), and a method of manufacturing by casting or die casting. Methods are known.

【0006】[0006]

【発明が解決しようとする課題】しかし、従来のよう
に、ストッパー31を、プレス加工によって製作する場
合、当たり面34の形状が複雑になると、プレス打ち抜
きによって十分な寸法精度がだせないと共に、ストッパ
ー31の幅寸法Bが広いと加工できないという問題があ
る。
However, as in the prior art, when the stopper 31 is manufactured by press working, if the shape of the contact surface 34 becomes complicated, sufficient dimensional accuracy cannot be obtained by press punching, and the stopper 31 cannot be provided. If the width dimension B of 31 is large, there is a problem that it cannot be processed.

【0007】また、ストッパー31を樹脂によって製作
する場合、ストッパー31に大きな荷重が作用した時に
割れが入る恐れがある。
In the case where the stopper 31 is made of a resin, there is a possibility that a crack may be formed when a large load is applied to the stopper 31.

【0008】そして、ストッパー31を鋳物やダイキャ
ストによって製作する場合、コストが非常に高くなって
しまう。
When the stopper 31 is manufactured by casting or die casting, the cost becomes extremely high.

【0009】[0009]

【課題を解決するための手段】そこで、本発明の請求項
1では、金属製の外筒と、上記外筒内部に位置する金属
製の内筒と、上記内筒の外形に対応した貫通孔を有し、
該貫通孔によって上記内筒に固定されたストッパーと、
上記外筒と上記内筒との間に介装されるゴム弾性体と、
を有する円筒型ブッシュにおいて、上記ストッパーがア
ルミニウムの押出成形によって形成されていることを特
徴としている。これによって、ストッパー形状が複雑に
なっても寸法精度の高いストッパーを得ることができ
る。
Therefore, according to the present invention, a metal outer cylinder, a metal inner cylinder located inside the outer cylinder, and a through-hole corresponding to the outer shape of the inner cylinder are provided. Has,
A stopper fixed to the inner cylinder by the through hole;
A rubber elastic body interposed between the outer cylinder and the inner cylinder,
Wherein the stopper is formed by extrusion of aluminum. As a result, a stopper with high dimensional accuracy can be obtained even if the shape of the stopper becomes complicated.

【0010】また、請求項2では、金属製の外筒と、上
記外筒内部に位置する金属製の内筒と、上記内筒の外形
に対応した貫通孔を有し、該貫通孔によって上記内筒に
固定されたストッパーと、上記外筒と上記内筒との間に
介装されるゴム弾性体と、を有する円筒型ブッシュの製
造方法において、上記ストッパーはアルミニウムからな
り、所定の一定断面を有する棒状に押出成形された後
に、所要の厚さに切断されて、上記内筒に固定されてい
ることを特徴としている。
According to a second aspect of the present invention, there is provided a metal outer cylinder, a metal inner cylinder positioned inside the outer cylinder, and a through-hole corresponding to the outer shape of the inner cylinder. In a method for manufacturing a cylindrical bush having a stopper fixed to an inner cylinder and a rubber elastic body interposed between the outer cylinder and the inner cylinder, the stopper is made of aluminum and has a predetermined constant cross section. After being extruded into a rod shape having the following shape, it is cut into a required thickness and fixed to the inner cylinder.

【0011】[0011]

【発明の実施の形態】本発明の一実施例を図面に基づい
て詳細に説明する。本発明に係る円筒型ブッシュ1は、
図1及び図2に示すように、外筒2と内筒3とストッパ
ー4とゴム弾性部材5とから大略構成されている。外筒
2は金属からなり、肉厚一定の略円筒形に形成されてい
ると共に、両端の開口部6には、この外筒2の半径方向
内周側に向かって短く折り返された折曲部7が形成され
ている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the drawings. The cylindrical bush 1 according to the present invention comprises:
As shown in FIG. 1 and FIG. 2, it is roughly composed of an outer cylinder 2, an inner cylinder 3, a stopper 4 and a rubber elastic member 5. The outer cylinder 2 is made of metal, is formed in a substantially cylindrical shape having a constant thickness, and has a bent portion which is bent short toward the radially inner peripheral side of the outer cylinder 2 at the openings 6 at both ends. 7 are formed.

【0012】内筒3は金属からなり、肉厚一定の略円筒
形を呈し、上記外筒2の内径より小径に形成され、かつ
上記外筒2と同軸に位置している。そして、この内筒3
の長手方向中央部には、上記内筒3の外径に略等しい円
形の貫通孔8を有するアルミニウムからなる略板状の上
記ストッパー4が圧入され固定されている。
The inner cylinder 3 is made of metal, has a substantially cylindrical shape with a constant thickness, is formed with a diameter smaller than the inner diameter of the outer cylinder 2, and is located coaxially with the outer cylinder 2. And this inner cylinder 3
The substantially plate-shaped stopper 4 made of aluminum and having a circular through-hole 8 substantially equal to the outer diameter of the inner cylinder 3 is press-fitted and fixed to a central portion in the longitudinal direction of the inner cylinder 3.

【0013】上記ストッパー4は、上記貫通孔8を中心
として180度対称方向に突出した一対のストッパー部
4aを有し、このストッパー部4aの先端の当たり面1
5が、上記外筒2内周面に対向するように近接してい
る。この当たり面15は、上記外筒2内周面の曲率に沿
って湾曲していると共に、中央部に略矩形状の突出部1
6が形成されており、この突出部16が上記外筒2内周
面に接触しない程度に近接している。
The stopper 4 has a pair of stoppers 4a projecting in a 180-degree symmetrical direction about the through hole 8, and a contact surface 1 at the tip of the stopper 4a.
5 is in close proximity to the inner peripheral surface of the outer cylinder 2. The contact surface 15 is curved along the curvature of the inner peripheral surface of the outer cylinder 2 and has a substantially rectangular projection 1 at the center.
6 are formed, and the projecting portions 16 are so close that they do not contact the inner peripheral surface of the outer cylinder 2.

【0014】このストッパー4が圧入された内筒3に
は、上記ゴム弾性部材5が加硫接着されている。
The rubber elastic member 5 is vulcanized and bonded to the inner cylinder 3 into which the stopper 4 is press-fitted.

【0015】上記ゴム弾性部材5は、上記内筒3の両端
に位置し、上記ストッパー4より大径で略円板状の主弾
性部5aと、該ストッパー4の外表面を覆うストッパー
被覆部5bと、からなっている。このゴム弾性部材5の
外周面には、略円筒状の金属環9が配設されている。こ
の金属環9は上記ストッパー4に対応する中央部に開口
を有し、かつ外筒2内に密に圧入されている。そして、
外筒2両端縁7が内側にかしめられており、これにより
金属環9と一体化されている。
The rubber elastic members 5 are located at both ends of the inner cylinder 3 and have a substantially disk-shaped main elastic portion 5a which is larger in diameter than the stopper 4 and a stopper covering portion 5b which covers the outer surface of the stopper 4. And, it consists of. A substantially cylindrical metal ring 9 is provided on the outer peripheral surface of the rubber elastic member 5. The metal ring 9 has an opening at the center corresponding to the stopper 4 and is pressed tightly into the outer cylinder 2. And
Both end edges 7 of the outer cylinder 2 are caulked inward, thereby being integrated with the metal ring 9.

【0016】上記主弾性部5aと外筒2とによって画成
された空間14は、外部に対して密閉された状態とな
り、内部にはシリコンオイル等の流体が封入されてい
る。
A space 14 defined by the main elastic portion 5a and the outer cylinder 2 is sealed from the outside, and a fluid such as silicon oil is sealed inside.

【0017】上記ストッパー4は、2つの工程を経て形
成されている。すなわち、図3に示すように、第1の工
程ではアルミニウム母材の押出成形によって一定の縦断
面を有する棒状部材17に形成される。次に、第2の工
程で、上記棒状部材17が所定長さに切断され、個々に
ストッパー4となる。つまり、押出成形によって得られ
た棒状部材17を所望の長さに切断したものが、図4に
示すように、ストッパー4として上記内筒3に圧入され
る。
The stopper 4 is formed through two steps. That is, as shown in FIG. 3, in the first step, the aluminum base material is formed into a rod-like member 17 having a constant vertical cross section by extrusion molding. Next, in a second step, the rod-shaped members 17 are cut to a predetermined length, and individually become the stoppers 4. That is, the rod-shaped member 17 obtained by extrusion molding is cut into a desired length, and is pressed into the inner cylinder 3 as the stopper 4 as shown in FIG.

【0018】このように構成された円筒型ブッシュ1に
おいては、ストッパー4はアルミニウムの押出成形によ
ってあらかじめ所望の外形状に形成されるので、外筒2
内周面に対向するストッパー4の当たり面15が複雑な
形状のものであっても精度良く形成することができ、か
つ鋳物やダイキャストで個々にストッパー4を製作する
よりもコストの低減が可能となる。
In the cylindrical bush 1 constructed as described above, the stopper 4 is previously formed into a desired outer shape by extrusion of aluminum.
Even if the contact surface 15 of the stopper 4 facing the inner peripheral surface has a complicated shape, it can be formed with high precision, and the cost can be reduced as compared with the case where the stopper 4 is manufactured individually by casting or die casting. Becomes

【0019】また、ストッパー4はアルミニウム製なの
で、樹脂製に比べ高い強度が得られると共に、鉄製に比
べ軽量化が可能となる。
Further, since the stopper 4 is made of aluminum, a higher strength can be obtained as compared with resin, and the weight can be reduced as compared with iron.

【0020】内筒3とストッパー4との固定方法は、上
記のように圧入する方法のほか、ストッパー4を内筒3
に挿入後、貫通孔8の開口部と内筒3外表面とを溶接し
ても良い。また、ストッパー4を内筒3に挿入後、かし
めて、貫通孔8の径を小径にして固定してもよい。
The method of fixing the inner cylinder 3 and the stopper 4 is as follows.
After that, the opening of the through hole 8 and the outer surface of the inner cylinder 3 may be welded. Alternatively, after the stopper 4 is inserted into the inner cylinder 3, it may be fixed by caulking to reduce the diameter of the through hole 8.

【0021】尚、内筒3とストッパー4との間の回転を
防止するために、図5、図6に示すように、内筒3の外
周形状を非円形に形成し、かつストッパー4の貫通孔8
をこれに対応した非円形に形成してもよい。
In order to prevent rotation between the inner cylinder 3 and the stopper 4, as shown in FIGS. 5 and 6, the outer peripheral shape of the inner cylinder 3 is formed in a non-circular shape, and the stopper 4 penetrates. Hole 8
May be formed in a non-circular shape corresponding to this.

【0022】また、図7に示すように、円筒に形成され
た内筒3のストッパー4が固定される位置の外周面に網
目状のローレット加工13を施し、上記ストッパー4挿
入後にかしめることでも、上記内筒3と該ストッパー4
との間の回転を確実に防止することができる。
As shown in FIG. 7, a mesh-like knurling process 13 is applied to the outer peripheral surface of the inner cylinder 3 formed in a cylindrical shape at a position where the stopper 4 is fixed, and caulking is performed after the stopper 4 is inserted. , The inner cylinder 3 and the stopper 4
Can reliably be prevented from rotating.

【0023】尚、本発明は上述した実施例に限定される
ものではなく、円筒型ブッシュ1内部に流体が封入され
ていない円筒型ブッシュにも適用可能である。
The present invention is not limited to the embodiment described above, but is applicable to a cylindrical bush in which no fluid is sealed inside the cylindrical bush 1.

【0024】[0024]

【発明の効果】以上のように、本発明に係る円筒型ブッ
シュにおいては、ストッパーがアルミニウムの押出成形
によって形成されているため、外筒の内周面に対向する
当たり面が複雑な形状のものであっても精度良く形成す
ることができ、かつ鋳物やダイキャストでストッパーを
製作するよりもコストの低減が可能となる。また、スト
ッパーはアルミニウム製なので、樹脂に比べ高い強度が
得られると共に、鉄製に比べ軽量化が可能となる。
As described above, in the cylindrical bush according to the present invention, since the stopper is formed by extrusion molding of aluminum, the contact surface facing the inner peripheral surface of the outer cylinder has a complicated shape. However, the stopper can be formed with high accuracy, and the cost can be reduced as compared with the case where the stopper is manufactured by casting or die casting. In addition, since the stopper is made of aluminum, it is possible to obtain higher strength than a resin, and it is possible to reduce the weight as compared with iron.

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

【図1】本発明に係る円筒型ブッシュの縦断面図。FIG. 1 is a longitudinal sectional view of a cylindrical bush according to the present invention.

【図2】図1のA−A線での断面図。FIG. 2 is a sectional view taken along line AA of FIG.

【図3】本発明に係る円筒型ブッシュのストッパーの斜
視図。
FIG. 3 is a perspective view of a stopper of the cylindrical bush according to the present invention.

【図4】内筒に図3のストッパーを圧入し固定するとき
の斜視図。
FIG. 4 is a perspective view when the stopper of FIG. 3 is pressed into an inner cylinder and fixed.

【図5】内筒を非円筒型に形成した異なる実施例での内
筒の斜視図。
FIG. 5 is a perspective view of an inner cylinder in a different embodiment in which the inner cylinder is formed in a non-cylindrical shape.

【図6】図5の内筒に対応するストッパーの斜視図。FIG. 6 is a perspective view of a stopper corresponding to the inner cylinder of FIG. 5;

【図7】内筒にローレット加工を施した異なる実施例で
の内筒の斜視図。
FIG. 7 is a perspective view of an inner cylinder in a different embodiment in which knurling is performed on the inner cylinder.

【図8】内筒にストッパーの組付けた従来例の側面図。FIG. 8 is a side view of a conventional example in which a stopper is attached to an inner cylinder.

【図9】ゴム弾性部材によって覆われた図8のストッパ
ーの断面図。
FIG. 9 is a cross-sectional view of the stopper of FIG. 8 covered with a rubber elastic member.

【図10】図8の正面図。FIG. 10 is a front view of FIG. 8;

【符号の説明】[Explanation of symbols]

3…内筒 4…ストッパー 5…ゴム弾性部材 5a…主弾性部 5b…ストッパー被覆部 3 ... Inner cylinder 4 ... Stopper 5 ... Rubber elastic member 5a ... Main elastic part 5b ... Stopper covering part

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 金属製の外筒と、上記外筒内部に位置す
る金属製の内筒と、上記内筒の外形に対応した貫通孔を
有し、該貫通孔によって上記内筒に固定されたストッパ
ーと、上記外筒と上記内筒との間に介装されるゴム弾性
体と、を有する円筒型ブッシュにおいて、上記ストッパ
ーがアルミニウムの押出成形によって形成されているこ
とを特徴とする円筒型ブッシュ。
1. A metal outer cylinder, a metal inner cylinder located inside the outer cylinder, and a through hole corresponding to an outer shape of the inner cylinder, the outer cylinder being fixed to the inner cylinder by the through hole. A cylindrical bush having a stopper, and a rubber elastic body interposed between the outer cylinder and the inner cylinder, wherein the stopper is formed by extrusion molding of aluminum. bush.
【請求項2】 金属製の外筒と、上記外筒内部に位置す
る金属製の内筒と、上記内筒の外形に対応した貫通孔を
有し、該貫通孔によって上記内筒に固定されたストッパ
ーと、上記外筒と上記内筒との間に介装されるゴム弾性
体と、を有する円筒型ブッシュの製造方法において、上
記ストッパーはアルミニウムからなり、所定の一定断面
を有する棒状に押出成形された後に、所要の厚さに切断
されて、上記内筒に固定されていることを特徴とする円
筒型ブッシュの製造方法。
2. A metal outer cylinder, a metal inner cylinder positioned inside the outer cylinder, and a through hole corresponding to the outer shape of the inner cylinder, the outer cylinder being fixed to the inner cylinder by the through hole. In a method for manufacturing a cylindrical bush having a stopper and a rubber elastic body interposed between the outer cylinder and the inner cylinder, the stopper is made of aluminum and extruded into a rod shape having a predetermined constant cross section. A method for producing a cylindrical bush, comprising cutting the molded product into a required thickness, and fixing the molded product to the inner cylinder.
JP34092997A 1997-12-11 1997-12-11 Cylindrical bush and manufacture thereof Pending JPH11173371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34092997A JPH11173371A (en) 1997-12-11 1997-12-11 Cylindrical bush and manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34092997A JPH11173371A (en) 1997-12-11 1997-12-11 Cylindrical bush and manufacture thereof

Publications (1)

Publication Number Publication Date
JPH11173371A true JPH11173371A (en) 1999-06-29

Family

ID=18341605

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34092997A Pending JPH11173371A (en) 1997-12-11 1997-12-11 Cylindrical bush and manufacture thereof

Country Status (1)

Country Link
JP (1) JPH11173371A (en)

Similar Documents

Publication Publication Date Title
US5887859A (en) Suspension bushing
US5152510A (en) Cylindrical elastic mount with vibration damper including cylindrical rigid split member
JPH03213710A (en) Ball joint
JP3772792B2 (en) Anti-vibration bush
US6626020B2 (en) Method of producing vibration-isolating bushing
US5193787A (en) Sleeve and bushing assembly and method of manufacturing the same
US5794741A (en) Installation ring for mounting pressurized fluid buffer device and fabrication method therefor
JPH11173371A (en) Cylindrical bush and manufacture thereof
JPH08233009A (en) Insulator installation structure
JP3932025B2 (en) Anti-vibration bush
JP2000145854A (en) Suspension bushing
JPH0343083B2 (en)
JP2000104775A (en) Manufacturing method for vibration isolating bush
JPH10132016A (en) Liquid filling type vibration control mount
JPH11325147A (en) Cylindrical vibration isolating device, and its manufacture
JP2903192B2 (en) Liquid-filled anti-vibration mount and manufacturing method thereof
JPS63115930A (en) Manufacture of elastic body device and its outer casting and inner metal
JPS6221169Y2 (en)
JP2000320596A (en) Vessel for air spring
JP3838126B2 (en) Method for manufacturing anti-vibration bushing with stopper
JPH0581772B2 (en)
JPH0525570B2 (en)
JP2998221B2 (en) Bush
JPH05296273A (en) Vibrationproof bush
JPH0234260B2 (en) YUATSUKANSHOKYOBARUBUGAIDONOSEIZOHOHO

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20060210

A131 Notification of reasons for refusal

Effective date: 20060221

Free format text: JAPANESE INTERMEDIATE CODE: A131

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20060620