JP2003222182A - Liquid sealed type vibration control device and manufacturing method for liquid sealed type vibration control device - Google Patents

Liquid sealed type vibration control device and manufacturing method for liquid sealed type vibration control device

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Publication number
JP2003222182A
JP2003222182A JP2002020718A JP2002020718A JP2003222182A JP 2003222182 A JP2003222182 A JP 2003222182A JP 2002020718 A JP2002020718 A JP 2002020718A JP 2002020718 A JP2002020718 A JP 2002020718A JP 2003222182 A JP2003222182 A JP 2003222182A
Authority
JP
Japan
Prior art keywords
fluid
fitting
outer cylinder
cylinder sleeve
rubber elastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2002020718A
Other languages
Japanese (ja)
Other versions
JP3900945B2 (en
Inventor
Eiji Tanaka
栄治 田中
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.)
Sumitomo Riko Co Ltd
Original Assignee
Sumitomo Riko 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 Sumitomo Riko Co Ltd filed Critical Sumitomo Riko Co Ltd
Priority to JP2002020718A priority Critical patent/JP3900945B2/en
Publication of JP2003222182A publication Critical patent/JP2003222182A/en
Application granted granted Critical
Publication of JP3900945B2 publication Critical patent/JP3900945B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Combined Devices Of Dampers And Springs (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easily manufacturable liquid sealed type vibration control device in which respective constituent members is assembled in incompressible fluid with excellent workability, and incompressible fluid is filled in the chambers while forming a pressure receiving chamber and an equilibrium chamber on both sides in which a main body rubber elastic body is sandwiched. <P>SOLUTION: By inserting a bottom lid member 50 in the opening of an outer cylinder sleeve 46 bonded to a diaphragm 42 by vulcanization and narrowing the outer cylinder sleeve 46 in the incompressible fluid, a supporting member 30 bonded to a main body rubber elastic body 16 by vulcanization is fitted and fixed on the axial intermediate point of the outer cylinder sleeve 46. Also, the bottom lid member 50 is fitted and fixed in the opening of the outer cylinder sleeve 46 to fluiditightly cover the opening of the outer cylinder sleeve 46. By so doing, while forming the pressure receiving chamber 64 and the equilibrium chamber 66, the incompressible fluid is filled in both chambers. <P>COPYRIGHT: (C)2003,JPO

Description

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

【０００１】[0001]

【技術分野】本発明は、自動車用のエンジンマウントや
ボデーマウント等として好適に採用され得る防振装置に
関連する技術であって、特に、内部に封入された非圧縮
性流体の流動作用に基づいて防振効果を得るようにした
流体封入式の防振装置およびその製造方法に関するもの
である。TECHNICAL FIELD The present invention relates to a vibration damping device that can be suitably adopted as an engine mount, a body mount, etc. for an automobile, and is particularly based on the flow action of an incompressible fluid enclosed inside. The present invention relates to a fluid-filled type vibration damping device for obtaining a vibration damping effect and a manufacturing method thereof.

【０００２】[0002]

【背景技術】従来から、振動伝達系を構成する部材間に
介装される防振連結体乃至は防振支持体の一種として、
特開平９−２５７０９０号公報や特開平１０−３８０１
６号公報等に記載されているように、防振連結される一
方の部材に取り付けられる第一取付金具を、防振連結さ
れる他方の部材に取り付けられる全体として略カップ形
状を有する第二取付金具の開口部側に離隔配置すると共
に、それら第一取付金具と第二取付金具を本体ゴム弾性
体で連結せしめて第二取付金具の開口部を流体密に覆蓋
することにより、本体ゴム弾性体で壁部の一部が構成さ
れて非圧縮性流体が封入された受圧室を第二取付金具内
に形成する一方、第一取付金具と第二取付金具の開口部
との間に跨がって広がるゴム弾性膜を本体ゴム弾性体の
外方に離隔して配設し、本体ゴム弾性体を挟んで受圧室
と反対側においてゴム弾性膜で壁部の一部が構成されて
非圧縮性流体が封入された平衡室を形成すると共に、そ
れら受圧室と平衡室を相互に連通するオリフィス通路を
設けた構造の流体封入式防振装置が、知られている。2. Description of the Related Art Conventionally, as a type of vibration-proof coupling body or vibration-proof support body interposed between members constituting a vibration transmission system,
JP-A-9-257090 and JP-A-10-3801
As described in Japanese Patent Publication No. 6, etc., a second mounting having a substantially cup shape as a whole, which is mounted on one member to be vibration-coupled and is attached to the other member to be vibration-coupled. The main body rubber elastic body is separated from the opening side of the metal fitting, and the first mounting metal piece and the second mounting metal piece are connected by the main body rubber elastic body to cover the opening of the second mounting metal piece in a fluid-tight manner. While forming a pressure receiving chamber in which a non-compressible fluid is enclosed by a part of the wall portion in the second mounting bracket, the pressure receiving chamber extends over between the first mounting bracket and the opening of the second mounting bracket. The rubber elastic film is spread outside the main rubber elastic body and is separated from the main rubber elastic body, and a part of the wall is composed of the rubber elastic film on the opposite side of the main rubber elastic body and is incompressible. Form an equilibrium chamber filled with fluid and equilibrate with those pressure receiving chambers. Mutual fluid filled type vibration damping device of the structure in which the orifice passage communicating with the are known.

【０００３】このような流体封入式防振装置は、第一取
付金具と第二取付金具の間に略中心軸方向の振動が入力
された際に本体ゴム弾性体の弾性変形に伴って受圧室に
圧力変動が惹起されることにより、ゴム弾性膜の弾性変
形によって容積変化が許容される平衡室と受圧室の相対
的な圧力変動に基づいてオリフィス通路を通じての流体
流動が生ぜしめられることとなり、以て、かかる流体の
共振作用等の流動作用に基づいて有効な防振効果を得る
ことができるのである。しかも、かかる流体封入式防振
装置においては、第一取付金具と第二取付金具の対向面
間に受圧室が形成されると共に、第一取付金具の外周部
分に平衡室が形成されることから、第一取付金具と第二
取付金具の中心軸方向での対向面間距離を小さく抑える
ことが可能となって、防振装置全体の中心軸方向におけ
るサイズのコンパクト化や、防振装置における弾性中心
の低位置化などが図られ得るという利点があり、例えば
自動車用のエンジンマウント等への適用が検討されてい
る。In such a fluid filled type vibration damping device, when the vibration in the substantially central axis direction is input between the first mounting member and the second mounting member, the pressure receiving chamber is accompanied by the elastic deformation of the main rubber elastic body. As a result of pressure fluctuations in the flow path, fluid flow through the orifice passage is generated based on the relative pressure fluctuations between the equilibrium chamber and the pressure receiving chamber, in which volume changes are allowed due to elastic deformation of the rubber elastic film. Thus, an effective vibration damping effect can be obtained based on the flow action such as the resonance action of the fluid. Moreover, in such a fluid filled type vibration damping device, the pressure receiving chamber is formed between the facing surfaces of the first mounting member and the second mounting member, and the equilibrium chamber is formed in the outer peripheral portion of the first mounting member. , The distance between the facing surfaces of the first mounting bracket and the second mounting bracket in the central axis direction can be suppressed to be small, and the size of the entire vibration isolator in the central axis direction can be made compact and the elasticity of the vibration isolator can be reduced. There is an advantage that the position of the center can be lowered, and its application to, for example, an engine mount for automobiles is under consideration.

【０００４】ところで、かくの如き流体封入式防振装置
においては、受圧室や平衡室に非圧縮性流体を封入する
ために、受圧室や平衡室を画成する各部材の組み付けを
非圧縮性流体中に浸けた状態で行なって、それら受圧室
や平衡室の形成と同時に非圧縮性流体を充填することが
考えられる。具体的には、例えば前記公報に記載の従来
構造とされた流体封入式防振装置においては、第二取付
金具の開口部に対して、ゴム弾性膜の外周縁部に加硫接
着された筒状のかしめ固定金具を流体密にかしめ固定す
ると共に、かかるかしめ固定部位において、本体ゴム弾
性体の外周面に加硫接着された筒状乃至は環状の支持金
具を挟圧固定せしめることにより、本体ゴム弾性体を挟
んだ両側に受圧室と平衡室を形成する構造が採用されて
おり、第二取付金具の組み付けとかしめ固定金具へのか
しめ固定を非圧縮性流体中で行なうようにされる。By the way, in such a fluid filled type vibration damping device, in order to fill the incompressible fluid into the pressure receiving chamber or the equilibrium chamber, the assembling of each member defining the pressure receiving chamber or the equilibrium chamber is made incompressible. It is possible to fill the incompressible fluid at the same time when the pressure receiving chamber and the equilibrium chamber are formed by submerging it in the fluid. Specifically, for example, in the fluid filled type vibration damping device having the conventional structure described in the above publication, a cylinder vulcanized and bonded to the outer peripheral edge of the rubber elastic film with respect to the opening of the second mounting member. -Shaped caulking fixture is fixed in a fluid-tight manner by caulking, and at this caulking-fixed portion, a tubular or annular support metal fitting vulcanized and bonded to the outer peripheral surface of the main body rubber elastic body is clamped and fixed. The structure in which the pressure receiving chamber and the equilibrium chamber are formed on both sides sandwiching the rubber elastic body is adopted, and the assembling of the second mounting member and the caulking and fixing to the caulking fixing member are performed in an incompressible fluid.

【０００５】ところが、このような非圧縮性流体中での
組付方法においては、非圧縮性流体中でのかしめ加工が
難しいという問題があり、またそれに加えて、ゴム弾性
膜の剛性が非常に小さくて該ゴム弾性膜の外周縁部に加
硫接着されたかしめ固定金具を、本体ゴム弾性体に加硫
接着された支持金具や第二取付金具に対して相対的に位
置決めすることが困難となってしまい、それら各金具の
相対的な位置決めを非圧縮性流体中で行なう必要がある
ことと相俟って、製造が難しく極めて面倒であるという
問題を有していたのである。However, such an assembling method in an incompressible fluid has a problem that caulking in an incompressible fluid is difficult, and in addition, the rigidity of the rubber elastic film is very high. It is difficult to position the caulking fixing metal fitting, which is small and vulcanized and bonded to the outer peripheral edge of the rubber elastic film, relative to the support metal fitting and the second mounting metal fitting vulcanized and bonded to the main rubber elastic body. In addition to the fact that the relative positioning of these metal fittings needs to be performed in an incompressible fluid, there is a problem that manufacturing is difficult and extremely troublesome.

【０００６】[0006]

【解決課題】ここにおいて、本発明は、上述の如き事情
を背景として為されたものであって、その解決課題とす
るところは、非圧縮性流体中での各構成部材の組み付け
を良好な作業性をもって行なうことが可能となって、本
体ゴム弾性体を挟んだ両側に受圧室と平衡室を形成する
と同時にそれら両室に非圧縮性流体を充填することが出
来る、製造が容易な新規な流体封入式防振装置を提供す
ること、および流体封入式防振装置の新規な製造方法を
提供することにある。The present invention has been made in view of the circumstances as described above, and the problem to be solved by the present invention is to perform a good work for assembling each constituent member in an incompressible fluid. A new fluid that is easy to manufacture and can be filled with incompressible fluid at the same time as forming pressure receiving chambers and equilibrium chambers on both sides of the main rubber elastic body. An object of the present invention is to provide a sealed type vibration damping device and a novel method for manufacturing a fluid filled type vibration damping device.

【０００７】[0007]

【解決手段】以下、このような課題を解決するために為
された本発明の態様を記載する。なお、以下に記載の各
態様において採用される構成要素は、可能な限り任意の
組み合わせで採用可能である。また、本発明の態様乃至
は技術的特徴は、以下に記載のものに限定されることな
く、明細書全体および図面に記載され、或いはそれらの
記載から当業者が把握することの出来る発明思想に基づ
いて認識されるものであることが理解されるべきであ
る。Aspects of the present invention made to solve such problems will be described below. The constituent elements used in each of the following aspects can be used in any combination as much as possible. Further, the aspects and technical features of the present invention are not limited to those described below, but are described in the entire specification and the drawings, or the invention idea that can be understood by those skilled in the art from those descriptions. It should be understood that it is recognized based on this.

【０００８】すなわち、流体封入式防振装置に関する本
発明の第一の態様は、第一取付部材を、全体として略カ
ップ形状を有する第二取付部材の開口部側に離隔配置す
ると共に、それら第一取付部材と第二取付部材を本体ゴ
ム弾性体で連結せしめて該第二取付部材の開口部を流体
密に覆蓋することにより、該本体ゴム弾性体で壁部の一
部が構成されて非圧縮性流体が封入された受圧室を該第
二取付部材内に形成する一方、前記第一取付部材と前記
第二取付部材の開口部との間に跨がって広がるゴム弾性
膜を前記本体ゴム弾性体の外方に離隔して配設し、該本
体ゴム弾性体を挟んで前記受圧室と反対側において該ゴ
ム弾性膜で壁部の一部が構成されて非圧縮性流体が封入
された平衡室を形成すると共に、それら受圧室と平衡室
を相互に連通するオリフィス通路を設けた流体封入式防
振装置において、前記本体ゴム弾性体の外周面に筒状乃
至は環状の支持部材を加硫接着すると共に、前記ゴム弾
性膜の外周縁部に外筒スリーブを加硫接着せしめ、該外
筒スリーブを軸方向に延び出させて該支持部材の周囲を
覆うようにする一方、該外筒スリーブの開口部に底蓋部
材を挿し入れて該外筒スリーブを前記非圧縮性流体中で
縮径せしめ、該外筒スリーブの軸方向中間部分に該支持
部材を嵌着固定すると共に、該外筒スリーブの開口部に
該底蓋部材を嵌着固定せしめて該外筒スリーブの開口部
を流体密に覆蓋することにより、該支持部材と該外筒ス
リーブおよび該底蓋部材を含んで前記第二取付部材を構
成すると共に、前記受圧室と前記平衡室を形成すると同
時にそれら両室に該非圧縮性流体を充填せしめたこと
を、特徴とする。That is, in the first aspect of the present invention relating to the fluid filled type vibration damping device, the first mounting member is arranged on the opening side of the second mounting member having a substantially cup shape as a whole and is separated from the first mounting member. By connecting the one mounting member and the second mounting member with the main body rubber elastic body to cover the opening of the second mounting member in a fluid-tight manner, a part of the wall portion is formed by the main body rubber elastic body. A pressure receiving chamber in which a compressive fluid is sealed is formed in the second mounting member, and a rubber elastic film extending across the first mounting member and the opening of the second mounting member is provided in the main body. The rubber elastic body is disposed separately from the rubber elastic body, and the rubber elastic film forms a part of the wall portion on the side opposite to the pressure receiving chamber with the main rubber elastic body interposed therebetween, and an incompressible fluid is sealed therein. And the pressure receiving chamber and the equilibrium chamber are communicated with each other. In a fluid filled type vibration damping device having a refill passage, a tubular or annular support member is vulcanized and adhered to the outer peripheral surface of the main rubber elastic body, and an outer cylindrical sleeve is attached to the outer peripheral edge of the rubber elastic film. The outer cylinder sleeve is vulcanized and adhered so as to extend in the axial direction so as to cover the periphery of the support member, while the bottom lid member is inserted into the opening of the outer cylinder sleeve to form the outer cylinder sleeve as described above. The diameter is reduced in an incompressible fluid, the supporting member is fitted and fixed to the axially intermediate portion of the outer cylinder sleeve, and the bottom lid member is fitted and fixed to the opening of the outer cylinder sleeve. By covering the opening of the cylindrical sleeve in a fluid-tight manner, the second mounting member is configured to include the support member, the outer cylindrical sleeve, and the bottom cover member, and the pressure receiving chamber and the equilibrium chamber are formed. At the same time, the incompressible fluid in both chambers That allowed Hama, characterized.

【０００９】このような本態様に従う構造とされた流体
封入式防振装置においては、加硫接着されたゴム弾性膜
の剛性が小さいために他部材に対する相対的な位置決め
が難しい外筒スリーブを軸方向に比較的大型の部材とし
て形成したことにより、非圧縮性流体中でも外筒スリー
ブの取扱いが容易とされて、外筒スリーブを支持部材や
底蓋部材に対して相対位置決めすることも容易となる。
そして、外筒スリーブに対して支持部材と底蓋部材をそ
れぞれ内挿位置せしめた状態で、非圧縮性流体中で外筒
スリーブを縮径させるだけで、難しい非圧縮性流体中で
のかしめ加工を必要とすることなく、受圧室と平衡室を
形成すると同時にそれら両室に非圧縮性流体を充填する
ことが可能となり、目的とする流体封入式防振装置を良
好な作業性をもって容易に製造することが出来るのであ
る。In the fluid filled type vibration damping device having the structure according to the present embodiment as described above, since the rigidity of the rubber elastic film vulcanized and bonded is small, the outer sleeve is difficult to be positioned relative to other members. Since it is formed as a relatively large member in the direction, the outer cylinder sleeve can be easily handled even in an incompressible fluid, and the outer cylinder sleeve can be easily positioned relative to the support member and the bottom lid member. .
Then, with the support member and the bottom lid member respectively inserted in the outer cylinder sleeve, the outer sleeve is simply reduced in diameter in a non-compressible fluid to perform caulking in a difficult incompressible fluid. It is possible to form the pressure receiving chamber and the equilibrium chamber at the same time, and to fill both chambers with an incompressible fluid without requiring You can do it.

【００１０】なお、本態様においては、外筒スリーブの
支持部材や底蓋部材に対する嵌着部位には、シールゴム
を介在せしめることが望ましく、そのようなシールゴム
は、例えば、ゴム弾性膜を外筒スリーブの内周面まで延
び出させて、外筒スリーブの略全体に薄肉のゴム層を形
成して加硫接着せしめることによって有利に実現され得
る。また、ゴム弾性膜の内周縁部は、第一取付部材に対
して直接に加硫接着されていても良いが、例えば、ゴム
弾性膜の内周縁部に固定部材を加硫接着せしめて、該固
定部材を第一取付部材に対して圧入や溶着、かしめ等で
後固定したり、第一取付部材を相互に後固着される二分
割構造体で形成して、その一つの分割構造体に対して本
体ゴム弾性体を加硫接着せしめる一方、もう一つの分割
構造体に対してゴム弾性膜を加硫接着するようにしても
良い。このようにゴム弾性膜と本体ゴム弾性体を別体加
硫成形品で構成することにより、それぞれの加硫成形を
容易に行なうことが出来ると共に、ゴム弾性膜と本体ゴ
ム弾性体にそれぞれ要求される特性に応じて互いに異な
るゴム材料を採用することも可能となる。In this embodiment, it is desirable that a seal rubber is interposed between the outer cylinder sleeve and the support member or the bottom cover member, and the seal rubber is made of, for example, a rubber elastic film. It can be advantageously realized by extending to the inner peripheral surface of the above, and forming a thin rubber layer on substantially the entire outer sleeve to be vulcanized and bonded. Further, the inner peripheral edge portion of the rubber elastic film may be directly vulcanized and adhered to the first mounting member, but for example, the fixing member may be vulcanized and adhered to the inner peripheral edge portion of the rubber elastic film. The fixing member is post-fixed to the first mounting member by press fitting, welding, caulking, etc., or the first mounting member is formed of a two-divided structure that is fixed to each other afterwards, and the one-divided structure is While the main body rubber elastic body is vulcanized and adhered, the rubber elastic film may be vulcanized and adhered to the other divided structure. By thus forming the rubber elastic film and the main rubber elastic body as separate vulcanization molded products, the respective vulcanization molding can be easily performed, and the rubber elastic film and the main rubber elastic body are required respectively. It is also possible to adopt different rubber materials according to the characteristics.

【００１１】また、流体封入式防振装置に関する本発明
の第二の態様は、前記第一の態様に係る流体封入式防振
装置において、前記底蓋部材の中央部分に透孔を形成す
ると共に、該透孔を流体密に閉塞せしめるようにして可
動ゴム板を配設し、更に該可動ゴム板の外方への膨出変
形量を制限するカバー部材を該底蓋部材の外側に配設し
て、該カバー部材を前記外筒スリーブの開口部に対して
外嵌固定せしめたことを、特徴とする。このような本態
様においては、可動ゴム板の弾性変形による受圧室の圧
力変動の吸収軽減作用に基づいて、オリフィス通路のチ
ューニング周波数よりも高周波数域での防振性能が向上
され得ると共に、外筒スリーブの開口部に外嵌固定され
たカバー部材により、外筒スリーブの底蓋部材への嵌着
固定力の補強作用も期待され得る。A second aspect of the present invention relating to a fluid filled type vibration damping device is that in the fluid filled type vibration damping device according to the first aspect, a through hole is formed in a central portion of the bottom lid member. , A movable rubber plate is disposed so as to close the through hole in a fluid-tight manner, and a cover member for limiting the outward bulging deformation amount of the movable rubber plate is disposed outside the bottom lid member. Then, the cover member is externally fitted and fixed to the opening of the outer cylinder sleeve. In this aspect, the vibration damping performance in the frequency range higher than the tuning frequency of the orifice passage can be improved based on the effect of absorbing and reducing the pressure fluctuation of the pressure receiving chamber due to the elastic deformation of the movable rubber plate, and The cover member externally fitted and fixed to the opening of the cylindrical sleeve can also be expected to reinforce the fitting and fixing force of the outer cylindrical sleeve to the bottom lid member.

【００１２】また、流体封入式防振装置に関する本発明
の第三の態様は、前記第一又は第二の態様に係る流体封
入岸式防振装置において、前記支持部材と前記底蓋部材
及び／又は前記外筒スリーブとの間でオリフィス部材を
挟み込んで配設固定して、前記オリフィス通路を該オリ
フィス部材により前記第二取付部材の筒壁部に沿って周
方向に延びるように形成したことを、特徴とする。この
ような本態様においては、オリフィス通路の通路長さの
設定自由度が大きく確保され得ると共に、そのようなオ
リフィス通路を形成するためのオリフィス部材を、支持
部材や底蓋部材，外筒スリーブを利用して簡単な構造で
容易に組み付けることが出来るのである。Further, a third aspect of the present invention relating to a fluid filled type vibration damping device is the fluid filled shore type vibration damping device according to the first or second aspect, wherein the support member, the bottom cover member and / or Alternatively, the orifice member is sandwiched between the outer sleeve and the outer sleeve, and the orifice passage is formed so as to extend in the circumferential direction along the cylinder wall portion of the second mounting member by the orifice member. , Characterized. In this aspect, a large degree of freedom in setting the passage length of the orifice passage can be ensured, and the orifice member for forming such an orifice passage is provided with a support member, a bottom lid member, and an outer sleeve. It can be easily assembled by using a simple structure.

【００１３】また、流体封入式防振装置の製造方法に関
する本発明の第一の態様は、上述の如き本発明の何れか
の態様に係る流体封入式防振装置を製造するに際して、
（ａ）前記本体ゴム弾性体に対して前記第一取付部材と
前記支持部材が加硫接着されると共に、前記外筒スリー
ブが外周縁部に加硫接着された前記ゴム弾性膜の内周縁
部が該第一取付部材に固着せしめられると共に、該外筒
スリーブが開口部側に向かって次第に拡開するテーパ形
状とされた本体ゴム組立体を準備する工程と、（ｂ）該
本体ゴム組立体を前記非圧縮性流体中に浸けて、前記外
筒スリーブの開口部に前記底蓋部材を挿し入れる工程
と、（ｃ）前記非圧縮性流体中で前記外筒スリーブを縮
径せしめて、前記支持部材と前記底蓋部材に対して該外
筒スリーブを外嵌固定することにより、該外筒スリーブ
の開口部を該底蓋部材で流体密に覆蓋せしめて、前記受
圧室と前記平衡室を形成すると同時にそれら両室に該非
圧縮性流体を充填する工程とを、含む流体封入式防振装
置の製造方法を、特徴とする。A first aspect of the present invention relating to a method for manufacturing a fluid-filled type vibration damping device is, when manufacturing the fluid-filled type vibration damping device according to any one of the aspects of the present invention as described above,
(A) An inner peripheral edge portion of the rubber elastic film in which the first mounting member and the support member are vulcanized and adhered to the main body rubber elastic body, and the outer cylindrical sleeve is vulcanized and adhered to an outer peripheral edge portion. Is fixed to the first mounting member, and a body rubber assembly having a tapered shape in which the outer cylinder sleeve gradually expands toward the opening side is prepared, and (b) the body rubber assembly. Immersing in the non-compressible fluid to insert the bottom lid member into the opening of the outer tubular sleeve; and (c) reduce the outer tubular sleeve in the non-compressible fluid, By externally fitting and fixing the outer sleeve to the support member and the bottom lid member, the opening of the outer sleeve is fluid-tightly covered with the bottom lid member to separate the pressure receiving chamber and the equilibrium chamber. Fill both chambers with the incompressible fluid as they form And a step, the method for manufacturing the fluid-filled vibration damping device comprising, characterized.

【００１４】このような本態様の製造方法に従えば、外
筒スリーブがテーパ形状とされていることによって、外
筒スリーブに対して底蓋部材を容易に挿し入れることが
出来ると共に、外筒スリーブを八方絞り等の縮径加工す
るだけで、難しい非圧縮性流体中でのかしめ加工を必要
とすることなく、受圧室と平衡室を形成すると同時にそ
れら両室に非圧縮性流体を充填することが出来るのであ
り、それ故、目的とする本発明に従う構造とされた流体
封入式防振装置を容易に製造することが可能となるので
ある。According to the manufacturing method of this aspect, since the outer cylinder sleeve is tapered, the bottom lid member can be easily inserted into the outer cylinder sleeve and the outer cylinder sleeve can be easily inserted. Forming pressure receiving chamber and equilibrium chamber at the same time as filling both chambers with incompressible fluid without caulking in difficult incompressible fluid by simply reducing diameter of Therefore, it is possible to easily manufacture the intended fluid filled type vibration damping device having the structure according to the present invention.

【００１５】なお、外筒スリーブに縮径加工を施すに際
しては、外筒スリーブに対して支持部材や底蓋部材を位
置精度良く安定して嵌着固定するために、絞り用保持金
具等によって、外筒スリーブに対して、例えば第一取付
部材を相対固定することにより本体ゴム弾性体を介して
支持部材や底蓋金具を位置決めしたり、或いは、それら
支持部材や底蓋金具を直接的に相対固定して位置決めす
ることが望ましい。また、外筒スリーブは、少なくとも
底蓋部材が嵌着される開口部が該底蓋金具よりも大径と
なるようなテーパが付されていれば良く、必ずしもその
軸方向全長に亘ってテーパ形状とする必要はない。When the outer sleeve is subjected to the diameter reduction processing, in order to stably fit and fix the support member and the bottom lid member to the outer sleeve with a positional accuracy, a holding metal fitting for diaphragm is used. For example, by fixing the first mounting member relative to the outer sleeve, the support member and the bottom lid fitting are positioned via the main rubber elastic body, or the support member and the bottom lid fitting are directly opposed to each other. It is desirable to fix and position it. Further, the outer cylinder sleeve may be tapered so that at least the opening portion into which the bottom lid member is fitted has a diameter larger than that of the bottom lid fitting, and is necessarily tapered along the entire axial length thereof. You don't have to.

【００１６】また、流体封入式防振装置の製造方法に関
する本発明の第二の態様は、前記第一の態様に係る本発
明方法であって、前記本体ゴム組立体において、前記外
筒スリーブの内径寸法を前記支持部材の外径寸法よりも
大径として該支持部材の外周側に離隔位置せしめると共
に、前記非圧縮性流体中で該外筒スリーブを縮径するこ
とによって、該外筒スリーブの開口部を前記底蓋部材に
外嵌固定せしめると同時に、該外筒スリーブの軸方向中
間部分を該支持部材に外嵌固定せしめることを、特徴と
する。このような本態様の製造方法に従えば、外筒スリ
ーブに対する支持部材や底蓋部材の嵌着固定を一層容易
に且つ速やかに行なうことが可能となる。なお、支持部
材や底蓋部材は、外筒スリーブに嵌着固定するに際し
て、互いに直接に、或いは他部材を介して間接的に相対
位置決めされることが望ましい。A second aspect of the present invention relating to a method of manufacturing a fluid filled type vibration damping device is the method of the present invention according to the first aspect, wherein in the main rubber assembly, the outer cylinder sleeve is The outer diameter of the outer sleeve is reduced by making the inner diameter larger than the outer diameter of the support so that the outer sleeve is spaced from the outer circumference of the support and reducing the outer sleeve in the incompressible fluid. The opening portion is externally fitted and fixed to the bottom lid member, and at the same time, the axially intermediate portion of the outer cylinder sleeve is externally fitted and fixed to the support member. According to such a manufacturing method of this aspect, it becomes possible to more easily and promptly fit and fix the support member and the bottom lid member to the outer cylinder sleeve. When the support member and the bottom cover member are fitted and fixed to the outer sleeve, it is desirable that the support member and the bottom cover member are directly positioned relative to each other or indirectly via another member.

【００１７】また、流体封入式防振装置の製造方法に関
する本発明の第三の態様は、前記第一又は第二の態様に
係る本発明方法において、前記本体ゴム組立体を略鉛直
上方に向かって前記外筒スリーブが開口する状態で前記
非圧縮性流体中に浸けて、前記底蓋部材を該外筒スリー
ブに対して略鉛直上方から挿し入れることを、特徴とす
る。このような本態様の製造方法に従えば、非圧縮性流
体中で外筒スリーブ内に形成された領域が鉛直上方に向
かって開口する状態とされることから、かかる領域内の
空気が効率的に排出され得て、受圧室や平衡室へのエア
の残留がより効果的に防止され得る。A third aspect of the present invention relating to a method of manufacturing a fluid filled type vibration damping device is the method of the present invention according to the first or second aspect, wherein the main rubber assembly is directed substantially vertically upward. The outer cover sleeve is immersed in the incompressible fluid in a state where the outer cover sleeve is open, and the bottom lid member is inserted into the outer cover sleeve from substantially vertically above. According to the manufacturing method of this aspect, the region formed in the outer sleeve in the non-compressible fluid is opened vertically upward, so that the air in the region is efficiently formed. The air can be discharged to the pressure receiving chamber and the equilibrium chamber more effectively.

【００１８】また、流体封入式防振装置の製造方法に関
する本発明の第四の態様は、前記第一乃至第三の何れか
の態様に係る本発明方法に従って、前述の如き本発明の
第三の態様に係る流体封入式防振装置を製造するに際し
て、前記底蓋部材を前記非圧縮性流体中に浸ける前に、
予め該底蓋部材に前記オリフィス部材を組み付けること
を、特徴とする。このような本態様の製造方法に従え
ば、製造作業性を大幅に低下させることなく、オリフィ
ス部材を備えた流体封入式防振装置を得ることが出来
る。A fourth aspect of the present invention relating to a method of manufacturing a fluid filled type vibration damping device is the third aspect of the present invention as described above according to the method of the present invention according to any one of the first to third aspects. In manufacturing the fluid filled type vibration damping device according to the aspect, before immersing the bottom lid member in the incompressible fluid,
It is characterized in that the orifice member is assembled to the bottom lid member in advance. According to such a manufacturing method of this aspect, it is possible to obtain the fluid filled type vibration damping device including the orifice member without significantly lowering the manufacturing workability.

【００１９】[0019]

【発明の実施形態】以下、本発明を更に具体的に明らか
にするために、本発明の実施形態について、図面を参照
しつつ、詳細に説明する。Embodiments of the present invention will now be described in detail with reference to the drawings in order to more specifically clarify the present invention.

【００２０】先ず、図１には、本発明の一実施形態とし
ての自動車用エンジンマウント１０が、示されている。
このエンジンマウント１０は、第一取付部材としての第
一取付金具１２と第二取付部材としての第二取付金具１
４が離隔配置されて、それら第一取付金具１２と第二取
付金具１４が本体ゴム弾性体１６で弾性連結された構造
を有しており、第一取付金具１２が自動車のパワーユニ
ットに取り付けられる一方、第二取付金具１４が自動車
のボデーに取り付けられることによって、パワーユニッ
トをボデーに対して防振支持せしめるようになってい
る。なお、以下の説明中、上下方向とは、原則として、
図１中の上下方向をいうものとする。First, FIG. 1 shows an automobile engine mount 10 as an embodiment of the present invention.
The engine mount 10 includes a first mounting member 12 as a first mounting member and a second mounting member 1 as a second mounting member.
4 has a structure in which the first mounting member 12 and the second mounting member 14 are elastically connected by a main rubber elastic body 16, and the first mounting member 12 is mounted on a power unit of an automobile. By attaching the second mounting member 14 to the body of the automobile, the power unit can be supported in a vibration-proof manner with respect to the body. In addition, in the following description, the vertical direction is, in principle,
The vertical direction in FIG. 1 is referred to.

【００２１】より詳細には、第一取付金具１２は、逆向
きの略円錐台形状を有しており、その大径側端部には、
軸方向上方に向かって突出する嵌合突部１８が一体形成
されている。この嵌合突部１８は、円形外周面を備えて
おり、突出先端部分の外周面には二面幅が形成されてい
る。また、第一取付金具１２には、嵌合突部１８の突出
先端面に開口して中心軸方向に延びるねじ穴２０が形成
されており、このねじ穴２０に植込ボルト２２が螺着さ
れることにより植込ボルト２２が軸方向上方に突設され
ている。また一方、第一取付金具１２の小径側端部に
は、軸方向下方に向かって突出する支持軸２４が一体形
成されており、この支持軸２４の先端部に対して、軸直
角方向に広がる略傘形状の傘金具２６がかしめ固定され
ている。More specifically, the first mounting member 12 has an inverted substantially circular truncated cone shape, and its large-diameter side end is
A fitting projection 18 is integrally formed so as to project upward in the axial direction. The fitting protrusion 18 has a circular outer peripheral surface, and the outer peripheral surface of the protruding tip portion has a width across flats. Further, the first mounting member 12 is formed with a screw hole 20 that opens in the protruding tip end surface of the fitting protrusion 18 and extends in the central axis direction, and a stud 22 is screwed into the screw hole 20. As a result, the stud 22 is projected upward in the axial direction. On the other hand, a support shaft 24 projecting downward in the axial direction is integrally formed on the small-diameter side end portion of the first mounting member 12, and extends in a direction perpendicular to the axis with respect to the tip end portion of the support shaft 24. A substantially umbrella-shaped umbrella metal fitting 26 is fixed by caulking.

【００２２】また、この第一取付金具１２には、本体ゴ
ム弾性体１６が加硫接着されている。本体ゴム弾性体１
６は、全体として略円錐台形状を有しており、その小径
側端面から第一取付金具１２が中心軸上に挿し込まれた
状態で配設されている。また、本体ゴム弾性体１６に
は、大径側端面に開口する大径の凹所２８が形成されて
おり、この大径凹所２８の上底面中央において、第一取
付金具１２の支持軸２４が突設されており、支持軸２４
によって支持された傘金具２６が、大径凹所２８内に位
置せしめられている。A main rubber elastic body 16 is vulcanized and adhered to the first mounting member 12. Body rubber elastic body 1
6 has a substantially truncated cone shape as a whole, and is arranged in a state in which the first mounting member 12 is inserted on the central axis from the end surface on the small diameter side. Further, the main rubber elastic body 16 is formed with a large-diameter recess 28 that opens to the large-diameter side end face. At the center of the upper bottom surface of the large-diameter recess 28, the support shaft 24 of the first mounting member 12 is formed. Are projected, and the support shaft 24
The umbrella metal fitting 26 supported by is located in the large diameter recess 28.

【００２３】更にまた、本体ゴム弾性体１６の大径側端
部外周面には、第二取付金具１４の一部を構成する支持
部材としての円筒形状を有する外周筒金具３０が加硫接
着されている。かかる外周筒金具３０の上側開口縁部に
は、径方向外方に向かって広がる円環形の外向きのフラ
ンジ状部３２が一体形成されている。なお、このフラン
ジ状部３２には、径方向外方に向かって開口する切欠状
の開口窓３４が、周方向で略等間隔に複数個（本実施形
態では、合計３個）形成されており、フランジ状部３２
は、実質的に、それら開口窓３４が形成されていない部
分だけに残存する状態となっている。また一方、外周筒
金具３０の下側開口縁部には、径方向内方に向かって広
がる円環形の内向きのフランジ状部３６が一体形成され
ている。なお、このフランジ状部３６の軸方向下面に
は、本体ゴム弾性体１６と一体形成されて下方に突出す
るシールゴム３８が、周方向全周に亘って延びる状態で
加硫接着されている。Further, an outer peripheral tubular metal member 30 having a cylindrical shape as a supporting member forming a part of the second mounting metal member 14 is vulcanized and adhered to the outer peripheral surface of the large diameter side end of the main rubber elastic body 16. ing. A ring-shaped outward flange portion 32 that expands radially outward is integrally formed on the upper opening edge portion of the outer peripheral tubular member 30. In addition, a plurality of notch-shaped opening windows 34 that open outward in the radial direction are formed in the flange-shaped portion 32 at substantially equal intervals in the circumferential direction (three in total in the present embodiment). , Flange-shaped portion 32
Are substantially left in a portion where the opening windows 34 are not formed. On the other hand, an annular inward flange-like portion 36 that expands radially inward is integrally formed at the lower opening edge of the outer peripheral tubular member 30. A seal rubber 38, which is integrally formed with the main rubber elastic body 16 and projects downward, is vulcanized and bonded to the lower surface of the flange portion 36 in the axial direction so as to extend over the entire circumference.

【００２４】要するに、本体ゴム弾性体１６には、中心
軸上に第一取付金具１２が貫通配置せしめられて加硫接
着されていると共に、外周面上に外周筒金具３０が重ね
合わせられて加硫接着されており、本体ゴム弾性体１６
が、それら第一取付金具１２と外周筒金具３０を備えた
一体加硫成形品４０として形成されているのである。ま
た、上述の説明からも明らかなように、本実施形態で
は、第二取付金具の開口部を構成する外周筒金具３０の
上側開口部が、本体ゴム弾性体１６によって流体密に覆
蓋されている。In short, to the main rubber elastic body 16, the first mounting member 12 is pierced and vulcanized and bonded on the central axis, and the outer peripheral metal member 30 is overlapped and applied on the outer peripheral surface. Sulfurized and bonded, main body rubber elastic body 16
However, it is formed as an integrally vulcanized molded product 40 including the first mounting member 12 and the outer peripheral tubular member 30. Further, as is apparent from the above description, in the present embodiment, the upper opening of the outer peripheral tubular metal member 30 forming the opening of the second mounting metal member is fluid-tightly covered by the main rubber elastic body 16. .

【００２５】さらに、第一取付金具１２には、ゴム弾性
膜としてのダイヤフラム４２が組み付けられて本体ゴム
弾性体１６の上方外面を覆うようにして配設されてい
る。このダイヤフラム４２は、変形容易な薄肉のゴム膜
によって形成されており、変形し易いように十分な弛み
を持たせた全体として略円環板形状を有していると共
に、内周縁部には、略円環形状を有する内周嵌着金具４
４が加硫接着されている。そして、内周嵌着金具４４に
対して第一取付金具１２の嵌合突部１８が圧入されるこ
とにより、第一取付金具１２に対してダイヤフラム４２
の内周縁部が流体密に固着されており、以て、ダイヤフ
ラム４２が、本体ゴム弾性体１６の上面を全体に亘って
覆うようにして独立して配設されている。Further, a diaphragm 42 as a rubber elastic film is attached to the first mounting member 12 so as to cover the upper outer surface of the main rubber elastic body 16. The diaphragm 42 is formed of a thin rubber film that is easily deformed, has a substantially annular plate shape as a whole with sufficient slack so that it is easily deformed, and has an inner peripheral edge portion Inner circumference fitting 4 having a substantially annular shape
4 is vulcanized and adhered. The fitting protrusion 18 of the first mounting member 12 is press-fitted into the inner fitting member 44, so that the diaphragm 42 is inserted into the first mounting member 12.
The inner peripheral edge portion is fixed in a fluid-tight manner, and thus the diaphragm 42 is independently arranged so as to cover the entire upper surface of the main rubber elastic body 16.

【００２６】また、ダイヤフラム４２の外周縁部には、
第二取付金具１４の一部を構成する外筒スリーブとして
のアウタ筒金具４６が加硫接着されている。このアウタ
筒金具４６は、上述の本体ゴム弾性体１６に加硫接着さ
れた外周筒金具３０よりも大径の円筒形状とされてお
り、且つ外周筒金具３０の外周側に配設されて、該外周
筒金具３０の軸方向両端部から更に軸方向上方および下
方に向かってそれぞれ大きく延び出す軸方向長さとされ
ている。そして、ダイヤフラム４２の外周縁部が、アウ
タ筒金具４６の上端開口縁部に対して加硫接着されてお
り、アウタ筒金具４６がダイヤフラム４２の外周縁部か
ら軸方向下方に向かって延び出して配設されている。こ
れにより、ダイヤフラム４２が、第一取付金具１２（嵌
合突部１８）の上端部分とアウタ筒金具４６の上側開口
部の間に跨って広がる状態で配設されている。また、ア
ウタ筒金具４６の内周面には、ダイヤフラム４２と一体
形成された薄肉のシールゴム４８が、アウタ筒金具４６
の内周面の略全面を覆うようにして加硫接着されてい
る。The outer peripheral edge of the diaphragm 42 is
An outer cylinder metal fitting 46 as an outer cylinder sleeve that constitutes a part of the second mounting metal fitting 14 is vulcanized and adhered. The outer tubular metal member 46 has a cylindrical shape having a diameter larger than that of the outer peripheral tubular metal member 30 vulcanized and bonded to the main body rubber elastic body 16 and is arranged on the outer peripheral side of the outer peripheral tubular metal member 30. The outer peripheral tubular member 30 has axial lengths that greatly extend axially upward and downward from both axial end portions, respectively. The outer peripheral edge portion of the diaphragm 42 is vulcanized and adhered to the upper end opening edge portion of the outer tubular fitting 46, and the outer tubular fitting 46 extends downward from the outer peripheral edge portion of the diaphragm 42 in the axial direction. It is arranged. As a result, the diaphragm 42 is arranged so as to extend across the upper end portion of the first mounting member 12 (fitting protrusion 18) and the upper opening of the outer tubular member 46. Further, on the inner peripheral surface of the outer tubular metal fitting 46, a thin seal rubber 48 integrally formed with the diaphragm 42 is provided.
It is vulcanized and bonded so as to cover substantially the entire inner peripheral surface of the.

【００２７】而して、アウタ筒金具４６は、その軸方向
中間部分において、収容状態で配設された外周筒金具３
０の外向きのフランジ状部３２が、開口窓３４の形成さ
れていない部分の外周縁部において嵌合固定されてい
る。なお、本実施形態では、このようにして第一取付金
具１２と外周筒金具３０を備えた本体ゴム弾性体１６の
一体加硫成形品４０に、内周嵌着金具４４やアウタ筒金
具４６を加硫接着したダイヤフラム４２が組み付けられ
ることにより、本体ゴム組立体４５が構成されている。Thus, the outer tubular metal fitting 46 has an outer peripheral tubular metal fitting 3 which is disposed in a housed state at an axially intermediate portion thereof.
The outward flange-shaped portion 32 of 0 is fitted and fixed at the outer peripheral edge portion of the portion where the opening window 34 is not formed. In this embodiment, the inner peripheral fitting metal fitting 44 and the outer cylindrical metal fitting 46 are attached to the integrally vulcanized molded product 40 of the main rubber elastic body 16 including the first mounting metal fitting 12 and the outer peripheral metal fitting 30 in this manner. The main body rubber assembly 45 is configured by assembling the vulcanized and bonded diaphragm 42.

【００２８】また、アウタ筒金具４６の下端部分が、外
周筒金具３０の下方において軸方向下方に延び出して開
口せしめられており、該外周筒金具３０の開口部として
の下側開口部に対して、底蓋部材としての蓋金具５０が
組み付けられている。かかる蓋金具５０は、浅底の有底
円筒形状を有しており、中央部分には内外に貫通する透
孔５２が形成されている。また、透孔５２には、可動ゴ
ム板としての所定厚さで広がる円板形状の弾性ゴム板５
４が配設されており、該弾性ゴム板５４の外周縁部が、
蓋金具５０における透孔５２の外周縁部に対して加硫接
着されることによって、かかる透孔５２が弾性ゴム板５
４で流体密に閉塞されている。即ち、弾性ゴム板５４
は、その外周縁部を固定的に支持されて展張状態で透孔
５２に配設されており、それ自体の弾性に基づいて初期
の展張状態への復元力を有していると共に、表裏面に及
ぼされる圧力差に基づいて弾性変形が許容されるように
なっている。また、蓋金具５０の底壁部には、弾性ゴム
板５４と一体形成された薄肉のシールゴム５６が、内外
周面の略全体を覆うようにして加硫接着されている。Further, the lower end portion of the outer tubular metal fitting 46 extends downward in the axial direction below the outer peripheral tubular metal fitting 30 and is opened, and the lower end portion as the opening of the outer peripheral tubular metal fitting 30 is opened. Then, a lid fitting 50 as a bottom lid member is assembled. The lid fitting 50 has a shallow bottomed cylindrical shape, and has a through hole 52 penetrating inward and outward in the central portion. Further, in the through hole 52, a disk-shaped elastic rubber plate 5 that spreads with a predetermined thickness as a movable rubber plate.
4 is provided, and the outer peripheral edge of the elastic rubber plate 54 is
By vulcanizing and adhering to the outer peripheral edge portion of the through hole 52 in the lid fitting 50, the through hole 52 is formed into the elastic rubber plate 5.
It is fluid-tightly closed at 4. That is, the elastic rubber plate 54
Is fixedly supported at the outer peripheral edge thereof and is disposed in the through hole 52 in a stretched state, and has a restoring force to the initial stretched state based on its elasticity, and the front and back surfaces are Elastic deformation is allowed based on the pressure difference exerted on. Further, a thin seal rubber 56 integrally formed with the elastic rubber plate 54 is vulcanized and adhered to the bottom wall of the lid member 50 so as to cover substantially the entire inner and outer peripheral surfaces.

【００２９】また、蓋金具５０の内部には、オリフィス
部材としてのオリフィス金具５８が組み付けられてい
る。このオリフィス金具５８は、全体として略円板形状
を呈しており、その外周縁部が屈曲されることにより、
下方に開口して周方向の全周に亘って延びる周溝６０が
形成されている。そして、オリフィス金具５８は、蓋金
具５０の筒壁部に対して圧入されることにより、蓋金具
５０に固定的に組み付けられている。また、オリフィス
金具５８の中央部分には、内外に貫通する複数の流通孔
６２が形成されており、これら流通孔６２によって、オ
リフィス金具５８と蓋金具５０の組付状態における弾性
ゴム板５４の上方への弾性変形量が、オリフィス金具５
８の底壁部で制限されつつ許容されるようになってい
る。Further, an orifice fitting 58 as an orifice member is assembled inside the lid fitting 50. The orifice fitting 58 has a substantially disc shape as a whole, and the outer peripheral edge portion is bent,
A circumferential groove 60 that opens downward and extends over the entire circumference in the circumferential direction is formed. The orifice fitting 58 is fixedly assembled to the lid fitting 50 by being press-fitted into the cylindrical wall portion of the lid fitting 50. Further, a plurality of circulation holes 62 penetrating inward and outward are formed in the central portion of the orifice metal fitting 58, and these circulation holes 62 allow the upper portion of the elastic rubber plate 54 in the assembled state of the orifice metal fitting 58 and the lid metal fitting 50. The amount of elastic deformation to the orifice fitting 5
It is designed to be allowed while being restricted by the bottom wall portion of No. 8.

【００３０】そして、オリフィス金具５８が組み付けら
れた蓋金具５０が、アウタ筒金具４６の下側開口部から
該アウタ筒金具４６の筒壁部に圧入や後述する絞り加工
等で嵌着固定されることにより、アウタ筒金具４６、ひ
いては本体ゴム弾性体１６やダイヤフラム４２を含んで
構成される本体ゴム組立体４５に組み付けられている。
これにより、アウタ筒金具４６の下側開口部が、蓋金具
５０によって流体密に覆蓋されている。また、上述の説
明からも明らかなように、本実施形態では、本体ゴム弾
性体１６で第一取付金具１２と連結される第二取付金具
１４が、外周筒金具３０やアウタ筒金具４６、蓋金具５
０を含んで構成されている。Then, the lid fitting 50 to which the orifice fitting 58 is assembled is fitted and fixed from the lower opening of the outer tubular fitting 46 into the tubular wall portion of the outer tubular fitting 46 by press fitting or drawing processing described later. As a result, the outer tubular metal fitting 46, and by extension, the main body rubber elastic body 16 and the main body rubber assembly 45 including the diaphragm 42 are assembled.
As a result, the lower opening of the outer tubular fitting 46 is fluid-tightly covered by the lid fitting 50. Further, as is apparent from the above description, in the present embodiment, the second mounting member 14 that is connected to the first mounting member 12 by the main rubber elastic body 16 includes the outer peripheral tubular member 30, the outer tubular member 46, and the lid. Metal fittings 5
It is configured to include 0.

【００３１】また、このようにしてオリフィス金具５８
が組み付けられた蓋金具５０が、上述の如き本体ゴム組
立体４５に組み付けられて、アウタ筒金具４６の下側開
口部を流体密に覆蓋せしめることにより、本体ゴム弾性
体１６と蓋金具５０の対向面間には、非圧縮性流体が封
入された受圧室６４が形成されている。かかる受圧室６
４は、壁部の一部が本体ゴム弾性体１６で構成されてお
り、第一取付金具１２と第二取付金具１４の間への振動
入力時に本体ゴム弾性体１６の弾性変形に基づいて振動
が入力されて圧力変動が生ぜしめられるようになってい
る。Further, in this manner, the orifice fitting 58
The lid fitting 50 assembled with is attached to the main body rubber assembly 45 as described above to cover the lower opening of the outer tubular fitting 46 in a fluid-tight manner. A pressure receiving chamber 64 in which an incompressible fluid is enclosed is formed between the opposed surfaces. This pressure receiving chamber 6
4, a part of the wall portion is composed of the main rubber elastic body 16, and vibrates based on elastic deformation of the main rubber elastic body 16 at the time of vibration input between the first mounting member 12 and the second mounting member 14. Is input to cause pressure fluctuations.

【００３２】更にまた、上述の如くして、本体ゴム組立
体４５が形成されると共に、蓋金具５０が本体ゴム組立
体４５に組み付けられることにより、本体ゴム弾性体１
６とダイヤフラム４２が、それぞれの内周縁部と外周縁
部において互いに流体密に組み合わされており、それに
よって、本体ゴム弾性体１６とダイヤフラム４２の対向
面間には、非圧縮性流体が封入された平衡室６６が形成
されている。この平衡室６６は、壁部の一部が変形容易
なダイヤフラム４２で構成されており、該ダイヤフラム
４２の弾性変形に基づいて容易に容積変化が許容される
ようになっている。なお、受圧室６４や平衡室６６に封
入される非圧縮性流体としては、第二取付金具１４内を
流動せしめられる流体の共振作用等に基づく防振効果を
自動車用エンジンマウント１０に要求される振動周波数
域で効率的に得るために、一般に、粘度が０．１Ｐａ・
ｓ以下の低粘性流体を用いることが望ましく、例えば、
水やアルキレングリコール、ポリアルキレングリコー
ル、シリコーン油などが好適に採用される。Furthermore, as described above, the main body rubber assembly 45 is formed, and the lid fitting 50 is assembled to the main body rubber assembly 45, whereby the main body rubber elastic body 1 is formed.
6 and the diaphragm 42 are fluid-tightly combined with each other at the inner peripheral edge portion and the outer peripheral edge portion, respectively, whereby an incompressible fluid is sealed between the opposing surfaces of the main rubber elastic body 16 and the diaphragm 42. An equilibrium chamber 66 is formed. The equilibrium chamber 66 is configured such that a part of the wall portion thereof is a diaphragm 42 which is easily deformable, and the volume change is easily allowed based on the elastic deformation of the diaphragm 42. As the incompressible fluid sealed in the pressure receiving chamber 64 and the equilibrium chamber 66, the vehicle engine mount 10 is required to have a vibration damping effect based on the resonance action of the fluid flowing in the second mounting member 14. In order to obtain efficiently in the vibration frequency range, the viscosity is generally 0.1 Pa.
It is desirable to use a low viscosity fluid of s or less, for example,
Water, alkylene glycol, polyalkylene glycol, silicone oil and the like are preferably adopted.

【００３３】また、受圧室６４は、壁部の別の一部が弾
性ゴム板５４で構成されており、第一取付金具１２と第
二取付金具１４の間への振動入力に伴って該受圧室６４
に圧力変動が惹起された際に、弾性ゴム板５４の弾性変
形に基づいて受圧室６４内の圧力変動が軽減乃至は吸収
されるようになっている。なお、本実施形態では、アイ
ドリング振動や低速こもり音等の中乃至高周波振動に対
して有効な防振効果（振動絶縁効果）を得るために、弾
性ゴム板５４の剛性や流通孔６２の断面積等がチューニ
ングされるようになっている。In the pressure receiving chamber 64, another part of the wall portion is composed of an elastic rubber plate 54, and the pressure receiving chamber 64 receives the pressure due to the vibration input between the first mounting member 12 and the second mounting member 14. Chamber 64
When a pressure fluctuation is induced in the pressure chamber, the pressure fluctuation in the pressure receiving chamber 64 is reduced or absorbed based on the elastic deformation of the elastic rubber plate 54. In the present embodiment, the rigidity of the elastic rubber plate 54 and the cross-sectional area of the flow hole 62 are obtained in order to obtain an effective vibration isolation effect (vibration insulation effect) against medium or high frequency vibrations such as idling vibrations and low-speed muffled noises. Etc. are tuned.

【００３４】更にまた、受圧室６４には、傘金具２６の
外周縁部と本体ゴム弾性体１６の凹所２８内面との対向
面間において、全体として環状の狭窄流路６８が形成さ
れており、振動入力時に第一取付金具１２と第二取付金
具１４が相対変位されることに伴って傘金具２６が受圧
室６４で変位せしめられることにより、狭窄流路６８を
通じての流体流動が生ぜしめられて、かかる流体の共振
作用に基づく所定の防振効果（振動絶縁効果）が発揮さ
れるようになっている。なお、本実施形態では、狭窄流
路６８が、例えばその内部を流動せしめられる流体の共
振作用に基づいて、弾性ゴム板５４の弾性変形に基づく
防振効果が発揮される振動周波数域とは異なる周波数域
の振動に対して、具体的には中〜高速こもり音等の高周
波振動に対して低動ばね作用に基づく防振効果が発揮さ
れるように、かかる狭窄流路６８の断面積や長さ等が調
節されている。Furthermore, in the pressure receiving chamber 64, an annular constriction flow channel 68 is formed as a whole between the outer peripheral edge portion of the umbrella fitting 26 and the inner surface of the recess 28 of the main rubber elastic body 16 facing each other. As the first mounting member 12 and the second mounting member 14 are relatively displaced at the time of vibration input, the umbrella metal member 26 is displaced in the pressure receiving chamber 64, so that the fluid flow through the narrowed channel 68 is generated. As a result, a predetermined vibration isolation effect (vibration isolation effect) based on the resonance action of the fluid is exhibited. In the present embodiment, the constricted channel 68 is different from the vibration frequency range in which the vibration damping effect based on the elastic deformation of the elastic rubber plate 54 is exerted, for example, based on the resonance action of the fluid flowing inside the constricted channel 68. The cross-sectional area and the length of the narrowed flow passage 68 are set so that the vibration-damping effect based on the low dynamic spring action is exerted on the vibration in the frequency range, specifically, the high-frequency vibration such as medium to high-speed muffled sound. Things are adjusted.

【００３５】また、上述の如き本体ゴム組立体４５とオ
リフィス金具５８および蓋金具５０の組み付け状態にお
いて、外周筒金具３０のフランジ状部３２がダイヤフラ
ム４２と一体形成されるシールゴム４８を介してアウタ
筒金具４６に流体密に嵌着固定されると共に、外周筒金
具３０のフランジ状部３６とオリフィス金具５８の上壁
部分が、本体ゴム弾性体１６と一体形成されるシールゴ
ム３８を介して流体密に重ね合わされることにより、外
周筒金具３０とアウタ筒金具４６の軸直角方向対向面間
には、周方向の全周に亘って延び、且つ外周筒金具３０
（フランジ状部３２）の開口窓３４を通じて平衡室６６
に接続される環状の流体流路７０が形成されている。Further, in the assembled state of the main body rubber assembly 45, the orifice fitting 58 and the lid fitting 50 as described above, the flange portion 32 of the outer peripheral fitting 30 is sealed with the seal rubber 48 integrally formed with the diaphragm 42 to form the outer cylinder. The flange-shaped portion 36 of the outer peripheral tubular metal fitting 30 and the upper wall portion of the orifice metal fitting 58 are fluid-tightly fitted and fixed to the metal fitting 46, and are fluid-tightly sealed via the seal rubber 38 integrally formed with the main rubber elastic body 16. By being overlapped, the outer peripheral tubular metal fitting 30 and the outer tubular metal fitting 46 extend over the entire circumference in the circumferential direction between the opposing surfaces of the outer tubular metal fitting 46 in the direction perpendicular to the axis, and
Equilibrium chamber 66 through opening window 34 of (flange-like portion 32)
An annular fluid flow path 70 connected to is formed.

【００３６】さらに、オリフィス金具５８の底壁部は、
その外周部分が弾性ゴム板５４と一体形成されるシール
ゴム５６を挟んで蓋金具５０の底壁部に対して流体密に
当接されており、以て、オリフィス金具５８の周溝６０
が流体密に覆蓋されてオリフィス通路７２が形成されて
いるのであり、かかるオリフィス通路７２の一方の端部
が、周溝６０の内側周壁部に設けられた連通孔７４を通
じて受圧室６４に連通されていると共に、オリフィス通
路７２の他方の端部が、周溝６０の上底壁部に設けられ
た連通孔７６を通じて流体流路７０に接続されており、
更には該流体流路７０と接続される外周筒金具３０の開
口窓３４を通じて平衡室６６に連通されている。Further, the bottom wall portion of the orifice fitting 58 is
The outer peripheral portion is in fluid-tight contact with the bottom wall portion of the lid fitting 50 with a seal rubber 56 integrally formed with the elastic rubber plate 54 interposed therebetween, and thus the circumferential groove 60 of the orifice fitting 58 is provided.
Is fluid-tightly covered to form the orifice passage 72, and one end of the orifice passage 72 is communicated with the pressure receiving chamber 64 through the communication hole 74 provided in the inner peripheral wall portion of the circumferential groove 60. At the same time, the other end of the orifice passage 72 is connected to the fluid flow passage 70 through a communication hole 76 provided in the upper bottom wall portion of the circumferential groove 60,
Further, the equilibrium chamber 66 is communicated with through the opening window 34 of the outer peripheral tubular member 30 connected to the fluid flow path 70.

【００３７】そして、このように受圧室６４と平衡室６
６がオリフィス通路７２で連通されていることにより、
振動入力時に受圧室６４と平衡室６６の間に惹起される
相対的な圧力差に基づいてオリフィス通路７２を通じて
の流体流動が生ぜしめられることとなり、その結果、か
かる流体の共振作用に基づいて入力振動に対して有効な
防振効果（減衰効果）が発揮されることとなる。特に、
オリフィス通路７２は、前述の如き狭窄流路６８や弾性
ゴム板５４による防振効果が発揮される振動周波数域よ
りも低周波数域の振動に対して防振効果が発揮されるよ
うにチューニングされることが望ましく、本実施形態で
は、例えばエンジンシェイク等の低周波大振幅振動に対
して流体の共振作用に基づく防振効果が発揮されるよう
に、オリフィス通路７２の通路断面積や長さ等が調節さ
れている。The pressure receiving chamber 64 and the equilibrium chamber 6 are thus formed.
6 communicates with the orifice passage 72,
A fluid flow through the orifice passage 72 is generated on the basis of the relative pressure difference generated between the pressure receiving chamber 64 and the equilibrium chamber 66 at the time of vibration input, and as a result, the fluid is input based on the resonance action of the fluid. An effective anti-vibration effect (damping effect) is exhibited against vibration. In particular,
The orifice passage 72 is tuned so that a vibration damping effect is exerted against vibrations in a frequency range lower than the vibration frequency range in which the narrowing flow path 68 and the elastic rubber plate 54 exert a vibration damping effect as described above. In the present embodiment, for example, the passage cross-sectional area and the length of the orifice passage 72 are set so that the vibration isolation effect based on the resonance action of the fluid is exerted on low-frequency large-amplitude vibration such as engine shake. Is being adjusted.

【００３８】また、第二取付金具１４の底部側、換言す
れば弾性ゴム板５４を配設した蓋金具５０の外側には、
浅底の有底円筒形状を有するカバー部材としての保護金
具７８が組み付けられている。かかる保護金具７８は、
蓋金具５０の外側から組み付けられて、蓋金具５０に重
ね合わされて配設されており、該保護金具７８の筒壁部
がアウタ筒金具４６の開口部に外嵌固定されている。更
にまた、この保護金具７８の中央部分には、内外に貫通
する複数の空気通孔８０が形成されている。これによ
り、保護金具７８は、弾性ゴム板５４の自由変形を許容
しつつ、弾性ゴム板５４の外方への過大な膨出変形を阻
止するようになっている。また、本実施形態では、前述
の如くして、本体ゴム組立体４５に蓋金具５０やオリフ
ィス金具５８、保護金具７８が組み付けられることによ
り、自動車用エンジンマウント１０が構成されている。On the bottom side of the second mounting member 14, in other words, on the outer side of the lid member 50 on which the elastic rubber plate 54 is arranged,
A protective metal fitting 78 as a cover member having a shallow bottomed cylindrical shape is assembled. The protective metal fitting 78 is
It is assembled from the outside of the lid fitting 50 and is disposed so as to be superposed on the lid fitting 50, and the tubular wall portion of the protective fitting 78 is externally fitted and fixed to the opening portion of the outer tubular fitting 46. Furthermore, a plurality of air holes 80 penetrating in and out are formed in the central portion of the protective fitting 78. As a result, the protective metal fitting 78 allows the elastic rubber plate 54 to freely deform while preventing the elastic rubber plate 54 from excessively bulging outward. Further, in the present embodiment, as described above, the automobile engine mount 10 is configured by assembling the lid fitting 50, the orifice fitting 58, and the protective fitting 78 to the main rubber assembly 45.

【００３９】さらに、このようなエンジンマウント１０
は、車両への装着に伴い、第一取付金具１２にストッパ
金具８２が組み付けられると共に、第二取付金具１４に
筒形ブラケット８４が組み付けられている。ストッパ金
具８２は、略円板形状を有しており、中央に貫設された
嵌着孔８６に対して第一取付金具１２の嵌合突部１８が
圧入されることによって第一取付金具１２に固着され
て、第一取付金具１２の上端部から軸直角方向外方に広
がって配設されている。また、ストッパ金具８２の外周
縁部には、緩衝ゴム８８が加硫接着されて下方に向かっ
て突出せしめられている。更に、自動車のパワーユニッ
ト（図示せず）が、ストッパ金具８２の中央部上面に重
ね合わされるようにして載置せしめられて、植込ボルト
２２で締結されることにより、第一取付金具１２がパワ
ーユニットに対して固定的に取り付けられている。Further, such an engine mount 10
With the mounting on the vehicle, the stopper fitting 82 is assembled to the first fitting 12, and the tubular bracket 84 is assembled to the second fitting 14. The stopper fitting 82 has a substantially disc shape, and the fitting protrusion 18 of the first fitting 12 is press-fitted into the fitting hole 86 penetrating the center of the first fitting 12. The first mounting member 12 is fixedly attached to the first mounting member 12 and extends outward in the direction perpendicular to the axis. A buffer rubber 88 is vulcanized and adhered to the outer peripheral edge of the stopper fitting 82 so as to project downward. Further, a power unit (not shown) of the automobile is placed on the upper surface of the central portion of the stopper metal fitting 82 so as to be superposed thereon, and is fastened with the studs 22 so that the first mounting metal fitting 12 is attached to the power unit. Fixedly attached to.

【００４０】また一方、筒形ブラケット８４は、大径円
筒形状の筒壁部９０を備えており、この筒壁部９０に対
してアウタ筒金具４６、ひいては第二取付金具１４が圧
入固定されて組み付けられている。また、筒形ブラケッ
ト８４の軸方向下側の開口部には、軸直角方向外方に向
かって広がるフランジ状部９２が一体形成されており、
図面に明示されていないが、このフランジ状部９２が自
動車のボデーに載置されて、フランジ状部９２の取付孔
９４に挿通されるボルト等によって固定されることによ
り、第二取付金具１４が筒形ブラケット８４を介して、
ボデーに対して固定的に取り付けられるようになってい
る。更にまた、筒形ブラケット８４の軸方向上側の開口
部には、軸直角方向内方に向かって突出する環状の当接
部９６が一体形成されており、第一取付金具１２に固設
されたストッパ金具８２の外周縁部に対して軸方向に離
隔して対向配置されている。そして、第一取付金具１２
と第二取付金具１４が接近せしめられるバウンド方向の
過大な振動荷重の入力時に、ストッパ金具８２が緩衝ゴ
ム８８を介して当接部９６に当接されることにより、本
体ゴム弾性体１６の変形量を制限するストッパ機構が構
成されている。なお、かかるマウント１０の車両装着状
態では、第一取付金具１２と第二取付金具１４の間にパ
ワーユニットの分担荷重が及ぼされることにより、静的
荷重においても本体ゴム弾性体１６が所定量だけ弾性変
形されることとなる。On the other hand, the tubular bracket 84 is provided with a tubular wall portion 90 having a large diameter cylindrical shape, and the outer tubular metal fitting 46, and by extension, the second mounting metal fitting 14, is press-fitted and fixed to the tubular wall portion 90. It is assembled. Further, a flange-shaped portion 92 that spreads outward in the direction perpendicular to the axis is integrally formed in the opening on the lower side in the axial direction of the tubular bracket 84,
Although not clearly shown in the drawing, the flange-shaped portion 92 is placed on the body of the automobile and fixed by a bolt or the like inserted into the mounting hole 94 of the flange-shaped portion 92, so that the second mounting member 14 is Through the tubular bracket 84,
It is fixedly attached to the body. Furthermore, an annular contact portion 96 that projects inward in the direction perpendicular to the axis is integrally formed in the axially upper opening of the tubular bracket 84, and is fixed to the first mounting member 12. The stopper fitting 82 is arranged so as to be opposed to the outer peripheral edge portion of the stopper fitting 82 in the axial direction. And the first mounting bracket 12
When the excessive vibration load in the bounding direction in which the second mounting member 14 and the second mounting member 14 are brought close to each other is input, the stopper member 82 is brought into contact with the contact portion 96 via the buffer rubber 88, so that the main rubber elastic body 16 is deformed. A stopper mechanism that limits the amount is configured. When the mount 10 is mounted on the vehicle, the load of the power unit is exerted between the first mounting member 12 and the second mounting member 14, so that the main rubber elastic body 16 is elastic by a predetermined amount even under static load. It will be transformed.

【００４１】このような構造とされたエンジンマウント
１０にあっては、振動入力時において受圧室６４と平衡
室６６の間でオリフィス通路７２を通じての流体流動が
有効に生ぜしめられて、かかる流体の共振作用に基づい
てシェイク等の低周波大振幅振動に対する有効な減衰効
果が発揮され得ると共に、高周波小振幅の振動入力時に
は、弾性ゴム板５４の弾性変形に伴う流通孔６２を通じ
ての実質的な流体流動に基づいて、受圧室６４の圧力変
動が軽減乃至は吸収されて、低動ばね化による振動絶縁
効果が有利に発揮され得る。また、より高周波数域の振
動入力に対しても、受圧室６４の狭窄流路６８を通じて
の流体流動に基づいて、有効な振動絶縁効果が発揮され
得るのである。In the engine mount 10 having such a structure, fluid flow through the orifice passage 72 is effectively generated between the pressure receiving chamber 64 and the equilibrium chamber 66 at the time of vibration input, and the fluid flow of such fluid is prevented. An effective damping effect on low-frequency large-amplitude vibration such as shaking can be exerted based on the resonance action, and at the time of high-frequency small-amplitude vibration input, a substantial fluid through the flow hole 62 due to elastic deformation of the elastic rubber plate 54. Based on the flow, the pressure fluctuation in the pressure receiving chamber 64 is reduced or absorbed, and the vibration insulation effect due to the low dynamic spring can be advantageously exhibited. Further, even for vibration input in a higher frequency range, an effective vibration insulation effect can be exerted based on the fluid flow through the constriction channel 68 of the pressure receiving chamber 64.

【００４２】また、上述の如き構造とされたエンジンマ
ウント１０は、例えば、以下の工程に従って製造され
る。The engine mount 10 having the above structure is manufactured, for example, according to the following steps.

【００４３】先ず、第一取付金具１２および外周筒金具
３０を備えた本体ゴム弾性体１６の一体加硫成形品４０
と、内周嵌着金具４４およびアウタ筒金具４６を備えた
ダイヤフラム４２の一体加硫成形品を、それぞれ、別体
形成すると共に、大気中で、内周嵌着金具４４に第一取
付金具１２の嵌合突部１８を圧入して、第一取付金具１
２に対してダイヤフラム４２の内周縁部を流体密に固着
させることにより、ダイヤフラム４２を本体ゴム弾性体
１６の外方に位置せしめ、且つ本体ゴム弾性体１６の上
面を全体に亘って覆うようにして配設位置する本体ゴム
組立体４５を形成，準備する（図２参照）。First, the integrally vulcanized molded product 40 of the main rubber elastic body 16 provided with the first mounting member 12 and the outer peripheral tubular member 30.
And the integrally vulcanized molded product of the diaphragm 42 including the inner fitting metal fitting 44 and the outer tubular fitting 46 are separately formed, and the first fitting fitting 12 is attached to the inner fitting fitting 44 in the atmosphere. The fitting protrusion 18 of
The inner peripheral edge portion of the diaphragm 42 is fluid-tightly fixed to 2 so that the diaphragm 42 is positioned outside the main rubber elastic body 16 and the upper surface of the main rubber elastic body 16 is entirely covered. The main body rubber assembly 45, which is disposed as a unit, is formed and prepared (see FIG. 2).

【００４４】また、上述の如き本体ゴム組立体４５の形
成に際し、アウタ筒金具４６は、図３にも示されている
ように、その内径寸法を外周筒金具３０の外径寸法より
も十分に大径として外周筒金具３０の外周側に離隔配置
する。Further, in forming the main body rubber assembly 45 as described above, the outer cylinder fitting 46 has an inner diameter dimension sufficiently smaller than an outer diameter dimension of the outer peripheral cylinder fitting 30, as shown in FIG. The outer diameter of the outer peripheral tubular member 30 is set to be large and the outer peripheral tubular member 30 is spaced apart from the outer peripheral tubular member 30.

【００４５】そこにおいて、図２にも示されているよう
に、予めアウタ筒金具４６の成形に際して、アウタ筒金
具４６には、開口部側に向かって次第に拡開するテーパ
を付している。このテーパの本体ゴム組立体４５の中心
軸に対する傾斜角度は、特に限定されるものでなく、ア
ウタ筒金具４６と蓋金具５０における軸方向長さや径寸
法の比率等を考慮して適宜に設定，変更され得るが、本
実施形態では、テーパの傾斜角度：Ａ（度）を、望まし
くは、３≦Ａ≦２０、より望ましくは、５≦Ａ≦１０に
設定している。蓋し、後述する蓋金具５０のアウタ筒金
具４６への嵌め込み作業において、テーパの傾斜角度：
Ａが３度以下であると、蓋金具５０の外周縁部がアウタ
筒金具４６の開口部に当接され易くなって、組付作業性
の低下が惹起される一方、テーパの傾斜角度：Ａが２０
度以上であると、蓋金具５０のアウタ筒金具４６への位
置決めが難しくなると共に、後述するアウタ筒金具４６
の絞り加工用装置が大型化される等の問題が発生するか
らである。Here, as also shown in FIG. 2, when the outer tubular metal member 46 is formed in advance, the outer tubular metal member 46 is provided with a taper that gradually expands toward the opening side. The inclination angle of the taper with respect to the central axis of the main rubber assembly 45 is not particularly limited, and is appropriately set in consideration of the axial length and the diameter ratio of the outer tubular fitting 46 and the lid fitting 50. Although it can be changed, in the present embodiment, the taper inclination angle A (degree) is preferably set to 3 ≦ A ≦ 20, and more preferably 5 ≦ A ≦ 10. In the work of covering and fitting the lid fitting 50 into the outer tubular fitting 46, which will be described later, the taper inclination angle:
When A is 3 degrees or less, the outer peripheral edge portion of the lid fitting 50 is likely to come into contact with the opening portion of the outer tubular fitting 46, and the workability of assembling is deteriorated, while the taper inclination angle: A Is 20
If it is more than 100 degrees, it becomes difficult to position the lid fitting 50 on the outer tubular fitting 46, and at the same time, the outer tubular fitting 46 to be described later will be described.
This is because a problem such as an increase in the size of the drawing processing device occurs.

【００４６】また、かかる本体ゴム組立体４５を準備す
ると共に、蓋金具５０を、後述の非圧縮性流体中に浸け
る前、換言すれば本体ゴム組立体４５に非圧縮性流体中
で組み付ける前に、大気中で、オリフィス金具５８を蓋
金具５０の筒壁部に圧入して、予め蓋金具５０にオリフ
ィス金具５８を固定的に組み付けておく。Before preparing the main body rubber assembly 45 and immersing the lid fitting 50 in a later-described incompressible fluid, in other words, before assembling the main body rubber assembly 45 in the non-compressible fluid. In the atmosphere, the orifice fitting 58 is press-fitted into the cylindrical wall portion of the lid fitting 50, and the orifice fitting 58 is fixedly assembled to the lid fitting 50 in advance.

【００４７】上述の工程の後、本体ゴム組立体４５を、
略鉛直上方に向かってアウタ筒金具４６が開口する状態
（図２に示される状態）で非圧縮性流体中に浸けると共
に、オリフィス金具５８を組み付けた蓋金具５０を、略
鉛直下方に向かって開口する状態（図２に示される状
態）でアウタ筒金具４６の開口部に略鉛直上方から挿し
入れて、かかる挿入方向に押圧力を及ぼした状態で保持
することにより、図４にも示されるように、外周筒金具
３０のフランジ状部３６にオリフィス金具５８の外周部
分を載置した状態で、これら本体ゴム組立体４５や蓋金
具５０、オリフィス金具５８を非圧縮性流体に浸漬，保
持する。また、このように外周筒金具３０にオリフィス
金具５８を載置した状態で保持することにより、オリフ
ィス金具５８および蓋金具５０の本体ゴム組立体４５に
対する組み付け位置の位置決めを行う。After the above steps, the main rubber assembly 45 is
The outer tubular metal fitting 46 is opened substantially vertically upward (in a state shown in FIG. 2) while being immersed in the incompressible fluid, and the lid metal fitting 50 to which the orifice metal fitting 58 is attached is opened substantially vertically downward. 4 (a state shown in FIG. 2), the outer cylindrical metal fitting 46 is inserted into the opening of the outer tubular metal piece 46 from above in a substantially vertical direction, and is held in a state in which a pressing force is exerted in the inserting direction, as shown in FIG. Then, with the outer peripheral portion of the orifice metal fitting 58 placed on the flange portion 36 of the outer peripheral tubular metal fitting 30, the main rubber assembly 45, the lid metal fitting 50, and the orifice metal fitting 58 are dipped and held in an incompressible fluid. Further, by holding the orifice fitting 58 mounted on the outer peripheral tubular fitting 30 in this manner, the assembly position of the orifice fitting 58 and the lid fitting 50 with respect to the main rubber assembly 45 is determined.

【００４８】そして、八方絞り等の縮径加工が可能な公
知の絞り加工用装置（図示せず）を用いて、外周筒金具
３０にオリフィス金具５８を載置した状態で、非圧縮性
流体中でアウタ筒金具４６に対して絞り加工をして、該
アウタ筒金具４６を縮径することにより、アウタ筒金具
４６の開口部を蓋金具５０の筒壁部に外嵌固定すると共
に、アウタ筒金具４６の軸方向中間部分を外周筒金具３
０（フランジ状部３２）に外嵌固定する。これにより、
アウタ筒金具４６の開口部を蓋金具５０で流体密に覆蓋
させて、本体ゴム弾性体１６を挟んだ上下両側に受圧室
６４と平衡室６６を、それぞれ、形成すると共に、それ
ら両室６４，６６に非圧縮性流体を充填する。而して、
大気中で、図１に示される如き保護金具７８の筒壁部を
蓋金具５０の外側からアウタ筒金具４６の開口部に外嵌
固定して、保護金具７８を蓋金具５０に重ね合わせて配
設することによって、本実施形態の自動車用エンジンマ
ウント１０が実現される。Then, using a known drawing device (not shown) capable of reducing diameter such as octagonal drawing, the orifice fitting 58 is mounted on the outer peripheral tubular fitting 30, and the non-compressible fluid The outer tubular metal fitting 46 is subjected to a drawing process to reduce the diameter of the outer tubular metal fitting 46, so that the opening of the outer tubular metal fitting 46 is externally fitted and fixed to the tubular wall portion of the lid metal fitting 50, and The axial middle portion of the metal fitting 46 is attached to the outer peripheral metal fitting 3
0 (flange-shaped portion 32) is externally fitted and fixed. This allows
The opening of the outer tubular metal fitting 46 is fluid-tightly covered with the lid metal fitting 50 to form pressure receiving chambers 64 and equilibrium chambers 66 on both upper and lower sides with the main rubber elastic body 16 sandwiched therebetween. Fill 66 with incompressible fluid. Therefore,
In the atmosphere, the tubular wall portion of the protective metal fitting 78 as shown in FIG. 1 is externally fitted and fixed to the opening portion of the outer tubular metal fitting 46 from the outside of the lid metal fitting 50, and the protective metal fitting 78 is placed on the lid metal fitting 50 so as to overlap. By installing, the automobile engine mount 10 of the present embodiment is realized.

【００４９】従って、上述の如きエンジンマウント１０
の製造方法に従えば、アウタ筒金具４６に八方絞り等の
縮径加工することにより、難しい非圧縮性流体中でのか
しめ固定を必要とせずに、蓋金具５０およびオリフィス
金具５８をアウタ筒金具４６に対して簡単な構造で容易
に固定することが出来ると共に、非圧縮性流体が受圧室
６４および平衡室６６に容易に且つ確実に充填され得る
のであり、それ故、目的とするエンジンマウント１０を
安定して且つ優れた製作性をもって製造することが可能
となるのである。Therefore, the engine mount 10 as described above is used.
According to the manufacturing method of (1), the outer tubular metal fitting 46 is subjected to a diameter reduction process such as an eight-way drawing so that the lid metal fitting 50 and the orifice metal fitting 58 can be fixed to the outer tubular metal fitting 58 without caulking and fixing in a difficult incompressible fluid. It can be easily fixed to 46 with a simple structure, and the pressure receiving chamber 64 and the equilibrium chamber 66 can be easily and surely filled with the incompressible fluid, and therefore, the desired engine mount 10 can be obtained. Therefore, it is possible to manufacture the resin stably and with excellent manufacturability.

【００５０】更にまた、本実施形態の製造方法に従え
ば、蓋金具５０を非圧縮性流体中に浸ける前に、予め蓋
金具５０にオリフィス金具５８を組み付けることによ
り、製作性の更なる向上が図られ得る。Furthermore, according to the manufacturing method of the present embodiment, by further assembling the orifice fitting 58 to the lid fitting 50 before submerging the lid fitting 50 in the incompressible fluid, the manufacturability is further improved. Can be achieved.

【００５１】さらに、本実施形態の製造方法に従えば、
本体ゴム組立体４５を略鉛直上方に向かってアウタ筒金
具４６が開口する状態で非圧縮性流体中に浸けると共
に、オリフィス金具５８を組み付けた蓋金具５０をアウ
タ筒金具４６に対して略鉛直上方から挿し入れることに
より、非圧縮性流体中でアウタ筒金具４６内に形成され
た領域内の空気が効率的に排出されることとなり、それ
によって、受圧室６４や平衡室６６へのエアの残留がよ
り効果的に抑えられる。Further, according to the manufacturing method of the present embodiment,
The main body rubber assembly 45 is soaked in a non-compressible fluid with the outer tubular metal fitting 46 opening substantially vertically upward, and the lid metal fitting 50 with the orifice metal fitting 58 attached thereto is substantially vertically above the outer tubular metal fitting 46. The air in the region formed in the outer tubular metal fitting 46 is efficiently discharged in the non-compressible fluid by inserting the air from the inside of the outer cylinder fitting 46, whereby the air remains in the pressure receiving chamber 64 and the equilibrium chamber 66. Can be suppressed more effectively.

【００５２】また、本実施形態では、かかるエンジンマ
ウント１０の製造に際して、アウタ筒金具４６が、テー
パ形状とされていると共に、その内径寸法を外周筒金具
３０の外径寸法よりも十分に大径として外周筒金具３０
の外周側に離隔配置されていることにより、アウタ筒金
具４６に対して蓋金具５０を容易に挿し入れることが出
来、それによって、組付性が一層向上され得る。Further, in the present embodiment, when the engine mount 10 is manufactured, the outer tubular metal fitting 46 is tapered, and the inner diameter thereof is sufficiently larger than the outer diameter of the outer peripheral tubular metal fitting 30. As outer peripheral metal fitting 30
By being spaced apart from the outer peripheral side, the lid fitting 50 can be easily inserted into the outer tubular fitting 46, whereby the assembling property can be further improved.

【００５３】次に、図５には、本発明の別の実施形態と
しての自動車用エンジンマウントの要部が示されてい
る。即ち、本実施形態は、前記実施形態における第一取
付金具１２の別の実施形態を例示するものであることか
ら、以下の実施形態において前記実施形態と実質的に同
様な構造とされた部材および部位については、図中およ
び以下の説明中に、前記実施形態と同一の符号を付し或
いは用いることにより、それらの詳細な説明を省略す
る。Next, FIG. 5 shows an essential part of an automobile engine mount as another embodiment of the present invention. That is, since the present embodiment exemplifies another embodiment of the first mounting member 12 in the above-described embodiment, a member having a structure substantially similar to that of the above-described embodiment in the following embodiments and Regarding the parts, in the drawings and the following description, the same reference numerals as those in the above-described embodiment are attached or used, and the detailed description thereof will be omitted.

【００５４】詳細には、本実施形態の第一取付金具９８
は、本体ゴムインナ金具１００およびダイヤフラムイン
ナ金具１０２を含んで構成されている。本体ゴムインナ
金具１００は、略逆円錐台形状を有しており、該本体ゴ
ムインナ金具１００の中心軸上には、略一定の内径寸法
で軸方向にストレートに延びる固定用孔１０４が形成さ
れている。また、固定用孔１０４の軸方向上側部分に
は、上端開口部に向かって拡開するすり鉢状の内周面を
備えた嵌合凹部１０６が形成されている。そして、本体
ゴムインナ金具１００は、外周筒金具３０のフランジ状
部３２側に離隔して外周筒金具３０と略同一中心軸上で
離隔配置されていると共に、本体ゴム弾性体１６の略中
央部分に軸方向に貫通配置されて加硫接着されている。
これによって、本実施形態の本体ゴム弾性体１６は、か
かる本体ゴムインナ金具１００および外周筒金具３０を
備えた一体加硫成形品として形成されている。Specifically, the first mounting bracket 98 of this embodiment
Is configured to include a main body rubber inner fitting 100 and a diaphragm inner fitting 102. The main body rubber inner fitting 100 has a substantially inverted truncated cone shape, and a fixing hole 104 having a substantially constant inner diameter and extending straight in the axial direction is formed on the central axis of the main body rubber inner fitting 100. . Further, a fitting recess 106 having a mortar-shaped inner peripheral surface that widens toward the upper end opening is formed in the axially upper portion of the fixing hole 104. The main rubber inner metal fitting 100 is spaced apart on the flange-shaped portion 32 side of the outer peripheral metal fitting 30 and is disposed substantially on the same central axis as the outer peripheral metal fitting 30, and at the substantially central portion of the main rubber elastic body 16. It is pierced in the axial direction and adhered by vulcanization.
Thereby, the main rubber elastic body 16 of the present embodiment is formed as an integrally vulcanized molded product including the main rubber inner fitting 100 and the outer peripheral fitting 30.

【００５５】また、ダイヤフラムインナ金具１０２は、
軸直角方向に拡がる円板状部１０８を有していると共
に、該円板状部１０８の軸方向上側には、中心軸上にね
じ穴２０を備えたナット構造のボス状突部１１０が一体
形成されている。また、円板状部１０８の軸方向下側に
は、ロッド状の固定用軸部１１２が一体形成されてい
る。また、固定用軸部１１２には、下端面から中心軸上
に延びる肉抜き穴１１４が所定深さで形成されており、
それによって、固定用軸部１１２の下端部が円筒形状の
かしめ部１１６とされている。更にまた、これら円板状
部１０８と固定用軸部１１２の軸方向中間部分には、軸
方向上側に向かって次第に大径化される逆テーパ状の外
周面を備えた嵌合凸部１１８が形成されている。そし
て、ダイヤフラムインナ金具１０２は、アウタ筒金具４
６の上側開口部側に離隔してアウタ筒金具４６と略同一
中心軸上で離隔配置されていると共に、円板状部１０８
の外周縁部がダイヤフラム４２の内周縁部に加硫接着さ
れている。これによって、本実施形態のダイヤフラム４
２は、かかるダイヤフラムインナ金具１０２およびアウ
タ筒金具４６を備えた一体加硫成形品として形成されて
いる。Further, the diaphragm inner metal fitting 102 is
A boss-like protrusion 110 having a nut structure having a disc-shaped portion 108 extending in the direction perpendicular to the axis and having a screw hole 20 on the central axis is integrally formed on the axially upper side of the disc-shaped portion 108. Has been formed. A rod-shaped fixing shaft portion 112 is integrally formed on the axially lower side of the disc-shaped portion 108. In addition, a lightening hole 114 extending from the lower end surface to the central axis is formed in the fixing shaft portion 112 at a predetermined depth.
As a result, the lower end portion of the fixing shaft portion 112 serves as a cylindrical caulking portion 116. Furthermore, a fitting convex portion 118 having an inversely tapered outer peripheral surface gradually increasing in diameter in the axial direction is provided at an axially intermediate portion between the disk-shaped portion 108 and the fixing shaft portion 112. Has been formed. The diaphragm inner fitting 102 is the outer tubular fitting 4
6 is separated from the upper opening side of 6 and is disposed on the same central axis as the outer tubular metal member 46, and the disc-shaped portion 108 is provided.
The outer peripheral edge portion of is vulcanized and adhered to the inner peripheral edge portion of the diaphragm 42. As a result, the diaphragm 4 of the present embodiment
2 is formed as an integral vulcanization molded product including the diaphragm inner fitting 102 and the outer tubular fitting 46.

【００５６】而して、ダイヤフラム４２の一体加硫成形
品が、本体ゴム弾性体１６の一体加硫成形品に対して上
方から重ね合わされて組み付けられて、ダイヤフラムイ
ンナ金具１０２が本体ゴムインナ金具１００に固着され
ており、以て、ダイヤフラム４２が、本体ゴム弾性体１
６の径方向外方に離隔して、本体ゴム弾性体１６の外周
面を全体に亘って覆うようにして配設されている。Thus, the integrally vulcanized molded product of the diaphragm 42 is superposed and assembled on the integrally vulcanized molded product of the main rubber elastic body 16 from above, and the diaphragm inner metal fitting 102 is attached to the main rubber inner metal fitting 100. The diaphragm 42 is fixed to the main rubber elastic body 1.
The outer peripheral surface of the main rubber elastic body 16 is arranged so as to cover the entire outer peripheral surface of the main rubber elastic body 16 so as to be separated radially outward.

【００５７】すなわち、本実施形態では、ダイヤフラム
インナ金具１０２の円板状部１０８が本体ゴム弾性体１
６の上端面に密接状態で載置されており、ダイヤフラム
インナ金具１０２の固定用軸部１１２および嵌合凸部１
１８が本体ゴムインナ金具１００の固定用孔１０４およ
び嵌合凹部１０６に内挿されて位置合わせされているこ
とにより、ダイヤフラムインナ金具１０２が本体ゴムイ
ンナ金具１００に対して軸直角方向で相互に位置決めさ
れている。That is, in the present embodiment, the disk-shaped portion 108 of the diaphragm inner fitting 102 is the main rubber elastic body 1.
6 is mounted in close contact with the upper end surface of 6, and the fixing shaft portion 112 and the fitting convex portion 1 of the diaphragm inner metal fitting 102.
Since 18 is inserted and aligned in the fixing hole 104 and the fitting recess 106 of the main body rubber inner fitting 100, the diaphragm inner fitting 102 is positioned relative to the main body rubber inner fitting 100 in the direction perpendicular to the axis. There is.

【００５８】また、ダイヤフラムインナ金具１０２の固
定用軸部１１２が、本体ゴムインナ金具１００の固定用
孔１０４に圧入されると共に、ダイヤフラムインナ金具
１０２のかしめ部１１６の先端が、本体ゴムインナ金具
１００の小径側端面から軸方向下方に突出して拡径方向
にかしめられることにより、本体ゴムインナ金具１００
とダイヤフラムインナ金具１０２が相互に固定されて、
本実施形態の第一取付金具９８が構成されている。な
お、本実施形態において、これら本体ゴムインナ金具１
００とダイヤフラムインナ金具１０２の組み付け作業
は、大気中で実現される。The fixing shaft portion 112 of the diaphragm inner metal fitting 102 is press-fitted into the fixing hole 104 of the main body rubber inner metal fitting 100, and the tip of the caulking portion 116 of the diaphragm inner metal fitting 102 has a small diameter of the main body rubber inner metal fitting 100. The main body rubber inner metal fitting 100 is formed by protruding downward from the side end surface in the axial direction and crimping in the radial direction.
And the diaphragm inner metal fitting 102 are fixed to each other,
The first mounting bracket 98 of this embodiment is configured. In the present embodiment, these main body rubber inner metal fittings 1
00 and the diaphragm inner metal fitting 102 are assembled in the atmosphere.

【００５９】上述の如き構造とされた自動車用エンジン
マウントにおいては、本体ゴムインナ金具１００とダイ
ヤフラムインナ金具１０２からなる第一取付金具９８を
採用したことにより、ダイヤフラムインナ金具１０２に
本体ゴムインナ金具１００に嵌着固定するための貫通孔
が形成されないことから、それら両インナ金具１００，
１０２の重ね合わせ面が外部空間に面することなく、か
かる重ね合わせ面の端縁部も受圧室６４および平衡室６
６の内部に止まる構造とされるのであり、それ故、それ
ら両インナ金具１００，１０２の重ね合わせ部位におけ
るシール性が向上され得て、極めて高度な流体密性が容
易に実現され得るのである。In the engine mount for an automobile having the above-described structure, the first mounting bracket 98 composed of the main body rubber inner fitting 100 and the diaphragm inner fitting 102 is adopted, so that the main body rubber inner fitting 100 is fitted to the diaphragm inner fitting 102. Since the through hole for fixing and fixing is not formed, both inner metal fittings 100,
The overlapping surface of 102 does not face the external space, and the edge portion of the overlapping surface also receives the pressure receiving chamber 64 and the equilibrium chamber 6.
The structure is such that it stops inside 6 and, therefore, the sealing performance at the overlapping portions of the inner metal fittings 100 and 102 can be improved, and extremely high fluid tightness can be easily realized.

【００６０】以上、本発明の実施形態について詳述して
きたが、これらはあくまでも例示であって、本発明は、
これらの実施形態における具体的な説明によって、何
等、限定的に解釈されるものでない。Although the embodiments of the present invention have been described in detail above, these are merely examples, and the present invention is
The specific description in these embodiments should not be construed as limiting in any way.

【００６１】例えば、前記実施形態では、蓋金具５０に
弾性ゴム板５４が配設されていたが、かかる弾性ゴム板
５４は、マウントの要求される防振特性や製作性などを
考慮して適宜に配設されるものであり、マウントの必須
部材でない。For example, in the above-described embodiment, the elastic rubber plate 54 is arranged on the lid fitting 50, but the elastic rubber plate 54 is appropriately selected in consideration of the vibration-proof characteristics required for the mount and the manufacturability. It is arranged in the above and is not an essential member of the mount.

【００６２】また、オリフィス金具５８の具体的な構造
や形状などは、特に限定されるものでなく、例えば、オ
リフィス金具を、外周筒金具３０に外挿配置させたり、
或いはダイヤフラム４２の外周縁部に加硫接着されるア
ウタ筒金具４６に挿し入れて組み付けたり等する構造を
採用することも可能である。The specific structure and shape of the orifice fitting 58 are not particularly limited. For example, the orifice fitting may be externally arranged on the outer peripheral tubular fitting 30,
Alternatively, it is also possible to adopt a structure in which the outer tubular metal member 46 that is vulcanized and bonded to the outer peripheral edge of the diaphragm 42 is inserted and assembled.

【００６３】また、前記実施形態におけるエンジンマウ
ントの一製造工程では、蓋金具５０を非圧縮性流体中に
浸けて本体ゴム組立体４５に組み付けることに先立っ
て、大気中で、蓋金具５０にオリフィス金具５８を組み
付けていたが、これに限定されるものでなく、例えば、
非圧縮性流体中で、これら蓋金具５０とオリフィス金具
５８を、それぞれ、別々に本体ゴム組立体４５に組み付
けることも可能である。Further, in one manufacturing process of the engine mount in the above-described embodiment, before the cover fitting 50 is immersed in the incompressible fluid and assembled to the main rubber assembly 45, the cover fitting 50 is orificed in the atmosphere in the atmosphere. The metal fitting 58 was attached, but the metal fitting 58 is not limited to this.
It is also possible to separately assemble the lid fitting 50 and the orifice fitting 58 into the main rubber assembly 45 in a non-compressible fluid.

【００６４】加えて、本発明は、例示の自動車用エンジ
ンマウントの他、自動車用ボデーマウントやメンバマウ
ント等、或いは自動車以外に用いられる各種の流体封入
式マウントおよび該流体封入式マウントの製造方法に対
して適用され得ることは、勿論である。In addition to the illustrated engine mount for automobiles, the present invention also relates to various body-filled mounts and member mounts for automobiles, or various fluid-filled mounts used for other than automobiles and a method for manufacturing the fluid-filled mounts. Of course, it can also be applied.

【００６５】その他、一々列挙はしないが、本発明は、
当業者の知識に基づいて種々なる変更，修正，改良等を
加えた態様において実施され得るものであり、また、そ
のような実施態様が、本発明の趣旨を逸脱しない限り、
何れも、本発明の範囲内に含まれるものであることは、
言うまでもない。Although not listed one by one, the present invention
The present invention can be carried out in a mode in which various changes, modifications, improvements, etc. are added based on the knowledge of those skilled in the art, and such a mode does not depart from the gist of the present invention.
Both are included within the scope of the present invention,
Needless to say.

【００６６】[0066]

【発明の効果】上述の説明から明らかなように、本発明
に従う構造とされた流体封入式防振装置においては、外
筒スリーブが支持部材の周囲を覆うほどの大きな軸方向
長さをもって形成されていることによって、外筒スリー
ブの取扱い容易とされて非圧縮性流体中での外筒スリー
ブの支持部材や底蓋部材に対する位置決め作業を高精度
で且つ容易に行なうことが出来ると共に、かしめ加工を
要することなく受圧室や平衡室が形成され得ることか
ら、受圧室や平衡室の形成と非圧縮性流体の充填を容易
に行なうことが出来、以て、製造の安定性および作業性
の向上と、製品の品質安定性および信頼性の向上が、何
れも有利に実現され得るのである。As is apparent from the above description, in the fluid filled type vibration damping device having the structure according to the present invention, the outer sleeve has a large axial length so as to cover the periphery of the supporting member. This makes it easy to handle the outer sleeve, and the positioning work of the outer sleeve in the incompressible fluid with respect to the support member and the bottom lid member can be performed with high accuracy and easily, and caulking processing can be performed. Since the pressure receiving chamber and the equilibrium chamber can be formed without needing, the pressure receiving chamber and the equilibrium chamber can be easily formed and the non-compressible fluid can be filled, thereby improving the manufacturing stability and workability. Therefore, the improvement of product quality stability and reliability can be advantageously realized.

【００６７】また、本発明方法に従えば、外筒スリーブ
に底蓋部材およびオリフィス部材を内挿位置させた状態
で、非圧縮性流体中で外筒スリーブを縮径することによ
り、底蓋部材とオリフィス部材を外筒スリーブに対して
簡単な構造で容易に固定することが出来ると共に、難し
い非圧縮性流体中でのかしめ加工を必要とせずに、受圧
室および平衡室に非圧縮性流体を容易に充填することが
可能となるのであり、その結果、目的とする防振装置の
製作性が有利に向上され得るのである。According to the method of the present invention, the diameter of the outer cylinder sleeve is reduced in the incompressible fluid with the bottom cover member and the orifice member inserted in the outer cylinder sleeve. And the orifice member can be easily fixed to the outer sleeve with a simple structure, and incompressible fluid can be applied to the pressure receiving chamber and the equilibrium chamber without the need for caulking in difficult incompressible fluid. It is possible to easily fill, and as a result, the manufacturability of the intended vibration damping device can be advantageously improved.

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

【図１】本発明の一実施形態としての自動車用エンジン
マウントを示す縦断面図である。FIG. 1 is a vertical sectional view showing an automobile engine mount according to an embodiment of the present invention.

【図２】図１に示された自動車用エンジンマウントを本
発明方法に従って製造する場合の一製造工程を説明する
ための縦断面説明図である。FIG. 2 is a vertical cross-sectional explanatory view for explaining one manufacturing process in the case of manufacturing the automobile engine mount shown in FIG. 1 according to the method of the present invention.

【図３】図２における本体ゴム組立体を示す平面説明図
である。3 is an explanatory plan view showing a main rubber assembly in FIG. 2. FIG.

【図４】図１に示された自動車用エンジンマウントを本
発明方法に従って製造する場合の一製造工程を説明する
ための縦断面説明図である。FIG. 4 is a vertical cross-sectional explanatory view for explaining one manufacturing process in the case of manufacturing the automobile engine mount shown in FIG. 1 according to the method of the present invention.

【図５】本発明の別の実施形態としての自動車用エンジ
ンマウントの要部を拡大して示す縦断面説明図である。FIG. 5 is an explanatory longitudinal cross-sectional view showing an enlarged main part of an automobile engine mount according to another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１０ エンジンマウント １２ 第一取付金具 １４ 第二取付金具 １６ 本体ゴム弾性体 ３０ 外周筒金具 ４２ ダイヤフラム ４６ アウタ筒金具 ５０ 蓋金具 ６４ 受圧室 ６６ 平衡室 ７２ オリフィス通路 10 engine mount 12 First mounting bracket 14 Second mounting bracket 16 Rubber elastic body 30 Outer peripheral metal fittings 42 diaphragm 46 Outer tube fitting 50 lid fittings 64 Pressure chamber 66 Equilibrium chamber 72 Orifice passage

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】 第一取付部材を、全体として略カップ形
状を有する第二取付部材の開口部側に離隔配置すると共
に、それら第一取付部材と第二取付部材を本体ゴム弾性
体で連結せしめて該第二取付部材の開口部を流体密に覆
蓋することにより、該本体ゴム弾性体で壁部の一部が構
成されて非圧縮性流体が封入された受圧室を該第二取付
部材内に形成する一方、前記第一取付部材と前記第二取
付部材の開口部との間に跨がって広がるゴム弾性膜を前
記本体ゴム弾性体の外方に離隔して配設し、該本体ゴム
弾性体を挟んで前記受圧室と反対側において該ゴム弾性
膜で壁部の一部が構成されて非圧縮性流体が封入された
平衡室を形成すると共に、それら受圧室と平衡室を相互
に連通するオリフィス通路を設けた流体封入式防振装置
において、 前記本体ゴム弾性体の外周面に筒状乃至は環状の支持部
材を加硫接着すると共に、前記ゴム弾性膜の外周縁部に
外筒スリーブを加硫接着せしめ、該外筒スリーブを軸方
向に延び出させて該支持部材の周囲を覆うようにする一
方、該外筒スリーブの開口部に底蓋部材を挿し入れて該
外筒スリーブを前記非圧縮性流体中で縮径せしめ、該外
筒スリーブの軸方向中間部分に該支持部材を嵌着固定す
ると共に、該外筒スリーブの開口部に該底蓋部材を嵌着
固定せしめて該外筒スリーブの開口部を流体密に覆蓋す
ることにより、該支持部材と該外筒スリーブおよび該底
蓋部材を含んで前記第二取付部材を構成すると共に、前
記受圧室と前記平衡室を形成すると同時にそれら両室に
該非圧縮性流体を充填せしめたことを特徴とする流体封
入式防振装置。1. The first mounting member is spaced apart from the opening side of a second mounting member having a substantially cup shape as a whole, and the first mounting member and the second mounting member are connected by a rubber elastic body. To cover the opening of the second mounting member in a fluid-tight manner, thereby forming a pressure receiving chamber in which a part of the wall portion is constituted by the main rubber elastic body and incompressible fluid is enclosed in the second mounting member. On the other hand, a rubber elastic film extending across the first mounting member and the opening of the second mounting member is disposed outside the main body rubber elastic body so as to be separated from the main body elastic body. On the side opposite to the pressure receiving chamber with the rubber elastic body sandwiched, a part of the wall portion is formed by the rubber elastic film to form an equilibrium chamber in which an incompressible fluid is sealed, and the pressure receiving chamber and the equilibrium chamber are mutually connected. In a fluid filled type vibration damping device having an orifice passage communicating with A tubular or annular support member is vulcanized and adhered to the outer peripheral surface of the rubber elastic body, and an outer cylinder sleeve is vulcanized and adhered to the outer peripheral edge of the rubber elastic film so that the outer cylinder sleeve extends in the axial direction. While covering the periphery of the support member, a bottom cover member is inserted into the opening of the outer sleeve to reduce the outer sleeve in the incompressible fluid. By fitting and fixing the support member to the intermediate portion in the axial direction, and fitting and fixing the bottom cover member to the opening of the outer cylinder sleeve to cover the opening of the outer cylinder sleeve in a fluid-tight manner. The second mounting member is configured to include the support member, the outer cylinder sleeve, and the bottom cover member, and the pressure receiving chamber and the equilibrium chamber are formed, and at the same time, both chambers are filled with the incompressible fluid. A characteristic fluid filled vibration damping device. 【請求項２】 前記底蓋部材の中央部分に透孔を形成す
ると共に、該透孔を流体密に閉塞せしめるようにして可
動ゴム板を配設し、更に該可動ゴム板の外方への膨出変
形量を制限するカバー部材を該底蓋部材の外側に配設し
て、該カバー部材を前記外筒スリーブの開口部に対して
外嵌固定せしめた請求項１に記載の流体封入式防振装
置。2. A through hole is formed in the central portion of the bottom cover member, and a movable rubber plate is disposed so as to close the through hole in a fluid-tight manner. The fluid-filled type according to claim 1, wherein a cover member that restricts the amount of bulging deformation is disposed outside the bottom lid member, and the cover member is externally fitted and fixed to the opening of the outer sleeve. Anti-vibration device. 【請求項３】 前記支持部材と前記底蓋部材及び／又は
前記外筒スリーブとの間でオリフィス部材を挟み込んで
配設固定して、前記オリフィス通路を該オリフィス部材
により前記第二取付部材の筒壁部に沿って周方向に延び
るように形成した請求項１又は２に記載の流体封入式防
振装置。3. An orifice member is sandwiched between the supporting member and the bottom cover member and / or the outer sleeve, and the orifice passage is fixed by the orifice member. The fluid filled type vibration damping device according to claim 1, which is formed so as to extend in the circumferential direction along the wall portion. 【請求項４】 請求項１乃至３の何れかに記載の流体封
入式防振装置を製造するに際して、 前記本体ゴム弾性体に対して前記第一取付部材と前記支
持部材が加硫接着されると共に、前記外筒スリーブが外
周縁部に加硫接着された前記ゴム弾性膜の内周縁部が該
第一取付部材に固着せしめられると共に、該外筒スリー
ブが開口部側に向かって次第に拡開するテーパ形状とさ
れた本体ゴム組立体を準備する工程と、 該本体ゴム組立体を前記非圧縮性流体中に浸けて、前記
外筒スリーブの開口部に前記底蓋部材を挿し入れる工程
と、 前記非圧縮性流体中で前記外筒スリーブを縮径せしめ
て、前記支持部材と前記底蓋部材に対して該外筒スリー
ブを外嵌固定することにより、該外筒スリーブの開口部
を該底蓋部材で流体密に覆蓋せしめて、前記受圧室と前
記平衡室を形成すると同時にそれら両室に該非圧縮性流
体を充填する工程とを、含むことを特徴とする流体封入
式防振装置の製造方法4. When manufacturing the fluid filled type vibration damping device according to claim 1, the first mounting member and the supporting member are vulcanized and bonded to the main rubber elastic body. At the same time, the outer peripheral sleeve is vulcanized and adhered to the outer peripheral edge by vulcanization, and the inner peripheral edge of the rubber elastic film is fixed to the first mounting member, and the outer cylindrical sleeve gradually expands toward the opening side. A step of preparing a taper-shaped main body rubber assembly, a step of immersing the main body rubber assembly in the incompressible fluid, and inserting the bottom lid member into the opening of the outer cylinder sleeve, The outer cylinder sleeve is reduced in diameter in the non-compressible fluid, and the outer cylinder sleeve is externally fitted and fixed to the support member and the bottom lid member, so that the opening of the outer cylinder sleeve is closed. The lid member is fluid-tightly covered and the pressure receiving chamber And a step of forming the equilibrium chamber and filling both chambers with the incompressible fluid at the same time. 【請求項５】 前記本体ゴム組立体において、前記外筒
スリーブの内径寸法を前記支持部材の外径寸法よりも大
径として該支持部材の外周側に離隔位置せしめると共
に、前記非圧縮性流体中で該外筒スリーブを縮径するこ
とによって、該外筒スリーブの開口部を前記底蓋部材に
外嵌固定せしめると同時に、該外筒スリーブの軸方向中
間部分を該支持部材に外嵌固定せしめるようにした請求
項４に記載の流体封入式防振装置の製造方法。5. In the main rubber assembly, the outer sleeve has an inner diameter larger than an outer diameter of the support member and is spaced apart from the outer periphery of the support member, and The outer cylinder sleeve is reduced in diameter so that the opening of the outer cylinder sleeve is externally fitted and fixed to the bottom lid member, and at the same time, the axially intermediate portion of the outer cylinder sleeve is externally fitted and fixed to the support member. The method for manufacturing a fluid filled type vibration damping device according to claim 4, wherein. 【請求項６】 前記本体ゴム組立体を略鉛直上方に向か
って前記外筒スリーブが開口する状態で前記非圧縮性流
体中に浸けて、前記底蓋部材を該外筒スリーブに対して
略鉛直上方から挿し入れる請求項４又は５に記載の流体
封入式防振装置の製造方法。6. The bottom rubber member is immersed substantially vertically in the incompressible fluid in a state where the outer cylinder sleeve is opened substantially vertically upward, and the bottom cover member is substantially perpendicular to the outer cylinder sleeve. The method for manufacturing a fluid filled type vibration damping device according to claim 4, which is inserted from above. 【請求項７】 請求項３に記載の流体封入式防振装置を
製造するに際して、前記底蓋部材を前記非圧縮性流体中
に浸ける前に、予め該底蓋部材に前記オリフィス部材を
組み付ける請求項４乃至６の何れかに記載の流体封入式
防振装置の製造方法。7. When manufacturing the fluid filled type vibration damping device according to claim 3, the orifice member is assembled in advance to the bottom lid member before the bottom lid member is immersed in the incompressible fluid. Item 7. A method for manufacturing a fluid filled type vibration damping device according to any one of Items 4 to 6.
JP2002020718A 2002-01-29 2002-01-29 Fluid filled vibration isolator and method for manufacturing fluid filled vibration isolator Expired - Fee Related JP3900945B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009096378A1 (en) * 2008-01-28 2009-08-06 Bridgestone Corporation Vibration-damping device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009096378A1 (en) * 2008-01-28 2009-08-06 Bridgestone Corporation Vibration-damping device
JP5292313B2 (en) * 2008-01-28 2013-09-18 株式会社ブリヂストン Vibration isolator
US8740197B2 (en) 2008-01-28 2014-06-03 Bridgestone Corporation Vibration-damping device

Also Published As

Publication number Publication date
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