JPH0746827Y2 - Cylindrical liquid-filled anti-vibration mount - Google Patents

Description

【考案の詳細な説明】 （産業上の利用分野） 本考案は自動車用エンジンを支持するのに特に好適であ
って、振動発生源からの振動が車室内に伝播しないよう
に防振をはかって支持するための円筒型液封入防振マウ
ントに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is particularly suitable for supporting an automobile engine, and is designed to prevent vibration from a vibration source from propagating into the vehicle interior. The present invention relates to a cylindrical liquid-filled vibration-damping mount for supporting.

（従来の技術） FF型自動車等においてエンジンを車体に防振的に支持さ
せる場合に円筒形の防振ゴムが多用されるが、一般に使
用されるものは第６図に示す如き構造で軸を水平にした
二重筒形の外円筒（１）′と内円筒（２）′とをゴム状
弾性体からなる防振基体（３）′により連結していて、
これをブラケットにおけるカラー（18）′に圧入により
組付けて、ブラケットをエンジンに固定し、内円筒
（２）′を挿通したボルトによって車体に固定せしめて
防振マウントとして使用するものである。(Prior Art) Cylindrical anti-vibration rubber is often used to support an engine on a vehicle body in an FF type vehicle in a vibration-proof manner, but a commonly used one has a structure as shown in FIG. The horizontal double cylinder-shaped outer cylinder (1) 'and the inner cylinder (2)' are connected by a vibration-proof base (3) 'made of a rubber-like elastic body,
This is assembled into the collar (18) 'of the bracket by press fitting, the bracket is fixed to the engine, and the inner cylinder (2)' is fixed to the vehicle body with the bolt inserted to be used as an anti-vibration mount.

（考案が解決しようとする課題） 上述の従来の防振マウントは、防振機能を固体である防
振基体のゴム弾性力だけに依存しているので、低周波域
例えば10〜15Hzの振動に対する減衰係数がゴム弾性体に
より決定される小さい値であるから、大きな減衰力を確
保することが困難であり、従ってアイドリング時や、低
速走行時に車室内に振動が伝わるのが問題であった。(Problems to be Solved by the Invention) The above-described conventional anti-vibration mount depends on only the rubber elastic force of the solid anti-vibration substrate for its anti-vibration function. Since the damping coefficient is a small value determined by the rubber elastic body, it is difficult to secure a large damping force, so that there is a problem that vibration is transmitted to the vehicle interior during idling or low speed running.

本考案はかかる従来の問題点に対処して成されたもので
あって、低周波数域振動に対してはゴムからなる防振基
体本来の減衰特性に加え、内部に封入した粘性液のオリ
フィス内での可逆的な流通により減衰特性を十分に発揮
し、一方、高周波数域振動に対しては液自体の共振現象
により動的バネ定数を低くし振動伝達率を下げて良好な
しゃ断特性を発揮させる液封入方式の円筒型防振マウン
トを提供することにより、組み立て容易な簡易な構造に
よる低コストの下で乗心地の改善を期さしめることを考
案の目的とする。The present invention has been made in response to such conventional problems. In addition to the original damping characteristics of a vibration-damping base made of rubber for low-frequency vibration, the viscous liquid inside an orifice The damping characteristics are fully exhibited by the reversible flow at the same time, while on the other hand, for the high frequency vibration, the resonance phenomenon of the liquid itself lowers the dynamic spring constant to lower the vibration transmissibility and exerts good blocking characteristics. It is an object of the invention to provide a liquid-filled type cylindrical vibration-proof mount for improving ride comfort at low cost with a simple structure that is easy to assemble.

（課題を解決するための手段） 上記目的を達成するための本考案の円筒型液封入防振マ
ウントは、実施例を示す添付図面を参照して明らかな如
く、請求項１の考案は、周方向に延在し、かつ、両端が
内周面に開口する細通路からなるオリフィスを内蔵し、
前記両開口が上部側と下部側とに夫々位置する如く軸水
平に固定させる外筒部材内に、内筒部材を軸平行させて
遊挿通し、前記内筒部材を囲繞し、かつ外筒部材の水平
方向左右両側部の間に軸方向全長に亘らせ設けて外筒部
材と内筒部材とを連結せしめた横連結ゴム部材と、該横
連結ゴム部材の軸方向両端部と外筒部材との対応する両
端部のうち横連結ゴム部材よりも下方の個所との間に軸
直角方向に夫々亘らせた横連結ゴム部材からなる防振基
体を設けて、前記オリフィスの下部側開口に臨んでなる
密閉した空間の第１液室を横連結ゴム部材の下方に形成
せしめてなり、一方、横連結ゴム部材の上面と外筒部材
の上部内面との間に、それ等両面とは適宜間隔を存せし
めて、ダイアフラムを展延するとともに、その全周縁を
前記オリフィスの上部側開口に囲ませて外筒部材の内面
に液密に固着せしめることにより、前記オリフィスを介
し第１液室に連通してなる密閉した空間の第２液室を横
連結ゴム部材の上方に形成せしめて、それ等両液室に液
体を充填せしめ、さらに第１液室内には、該液室内で上
下左右に動き得る合成樹脂からなるストッパ部材を収設
した防振マウントであって、 上記オリフィスを、外筒部材の軸方向両端の大径部外周
に嵌着されるシールカラーのシールゴムを加硫接着した
内周と、一端部と除き該内周に頂面が当接される周方向
のリブを外周の中心線上に突設して他端部の同じリブ一
側に設けた開口位置のみ異にする同一形状の上下一組の
オリフィス部材と、これらオリフィス部材の上記リブを
有しない一端部の衝合せ部に介在し、オリフィス形成面
を上記オリフィス部材間で遮断する弾性体のオリフィス
閉鎖壁（15′）と、オリフィス部材の上記他端部の衝合
せ部に介在し、オリフィス形成面を上記オリフィス部材
間で上記開口側のリブ一側のみ遮断する弾性体のオリフ
ィス閉鎖壁（15）とにより組立て形成した構成を特徴と
する。(Means for Solving the Problems) A cylindrical liquid-filled vibration-damping mount according to the present invention for achieving the above-mentioned object is, as will be apparent from the accompanying drawings showing an embodiment, the device of claim 1 Direction, and has a built-in orifice consisting of a narrow passage with both ends open to the inner peripheral surface,
The inner cylinder member is axially parallel inserted into the outer cylinder member that is fixed axially so that the openings are located on the upper side and the lower side, respectively, and the inner cylinder member is surrounded by the outer cylinder member. A horizontal connecting rubber member which is provided between the left and right side parts in the horizontal direction over the entire length in the axial direction to connect the outer tubular member and the inner tubular member, and both axial end portions of the horizontal connecting rubber member and the outer tubular member. A vibration-isolating base made up of laterally-connecting rubber members extending in the direction perpendicular to the axis is provided between the end portions corresponding to and below the laterally-connecting rubber member, and the lower-side opening of the orifice is provided. The first liquid chamber in the closed space that faces is formed below the horizontal connecting rubber member, while between the upper surface of the horizontal connecting rubber member and the upper inner surface of the outer cylindrical member, both surfaces thereof are appropriately formed. The diaphragm is extended with a space, and the entire periphery of the diaphragm is The second liquid chamber, which is a sealed space communicating with the first liquid chamber through the orifice, is located above the horizontal connecting rubber member by being liquid-tightly fixed to the inner surface of the outer tubular member by being surrounded by the opening on the side of the section. An anti-vibration mount in which both liquid chambers are filled with liquid, and a stopper member made of synthetic resin that can move vertically and horizontally in the liquid chamber is housed in the liquid chamber. The orifice has an inner circumference formed by vulcanizing and adhering seal rubber of a seal collar that is fitted to the outer circumference of the large diameter portion at both axial ends of the outer cylinder member, and a circumferential direction in which the top surface abuts on the inner circumference except at one end. Ribs projecting on the center line of the outer circumference and provided on one side of the same rib at the other end, and having a pair of upper and lower orifice members of the same shape with different opening positions, and one end of these orifice members not having the ribs Of the orifice forming surface The orifice closing wall (15 '), which is an elastic body for shutting off between the refining members, and the abutting portion of the other end portion of the orifice member are interposed, and the orifice forming surface is provided between the orifice members only on one side of the rib on the opening side. It is characterized in that it is assembled by an orifice closing wall (15) made of an elastic body for blocking.

また、請求項２の考案は、横連結ゴム部材上面とダイア
フラムとの間の空間部に、横連結ゴム部材の変位及び第
２液室の拡張範囲を規制するための上記ダイアフラムの
肩部全周に対し非圧縮又は予圧縮の状態で接触する形状
の板状体からなるダイアフラムカバーを外筒部材の大径
部下面に固着してなる構成が請求項１の考案に付加さ
れ、更に請求項３の考案はシールカラーの軸方向両端
の、少なくともダイアフラムカバーの上部に位置する部
分に、該ダイアフラムカバー両端部へのかしめ固定可能
な長さを有して夫々外方に延出する廂部を設けた構成が
請求項２の考案に特定されたものである。According to a second aspect of the invention, in the space between the upper surface of the horizontal connecting rubber member and the diaphragm, the entire circumference of the shoulder portion of the diaphragm for restricting the displacement of the horizontal connecting rubber member and the expansion range of the second liquid chamber. On the other hand, a configuration in which a diaphragm cover made of a plate-shaped member that contacts in a non-compressed or pre-compressed state is fixed to the lower surface of the large diameter portion of the outer cylindrical member is added to the invention of claim 1, and further, In the invention, at least the axially opposite ends of the seal collar, at least at the portions located above the diaphragm cover, are provided with ridges each having a length capable of being caulked and fixed to both ends of the diaphragm cover and extending outwardly. The above configuration is specified in the invention of claim 2.

（作用） しかして、上記の如き構成になる本考案の円筒型液封入
防振マウントによれば、これを自動車のエンジン支持部
に装着，使用するときは、内筒部材と外筒部材との間に
相対的な上下振動が加わると、防振基体に変形が生じる
ので第１液室と第２液室の容積が増減変化し、その結
果、封入した液体がオリフィスを通じて可逆的に流動す
る。(Operation) According to the cylindrical liquid-filled vibration-damping mount of the present invention having the above-described structure, however, when the cylindrical liquid-filled vibration-damping mount is mounted and used on the engine support portion of the automobile, the inner cylinder member and the outer cylinder member are separated from each other. When a relative vertical vibration is applied between them, the vibration-proof substrate is deformed, so that the volumes of the first liquid chamber and the second liquid chamber are increased or decreased, and as a result, the enclosed liquid flows reversibly through the orifice.

オリフィスは流動流通抵抗を有していることから、液体
の保有する粘性によって低周波振動領域では高い減衰特
性が得られ、防振基体における特に横連結ゴム部材が有
する本来の減衰作用に加えられることによって、振動に
対する高減衰作用を発揮する。Since the orifice has flow and flow resistance, high viscosity is obtained in the low-frequency vibration region due to the viscosity of the liquid, and it is added to the original damping action of the horizontal coupling rubber member of the vibration-isolating base. Exhibits a high damping action against vibration.

一方、振動数が高い場合は液体流動は入力振動と同期し
難くなって、所定振動数において液体自体が共振現象を
呈することにより、低い動的バネ定数を示し、高周波数
域での振動伝達率を下げることができる。On the other hand, when the frequency is high, the liquid flow becomes difficult to synchronize with the input vibration, and the liquid itself exhibits a resonance phenomenon at the predetermined frequency, which shows a low dynamic spring constant and the vibration transmissibility in the high frequency range. Can be lowered.

走行中の定常範囲内における上下振動に対しては、横連
結ゴム部材の下面がストッパ部材の上面に接当するまで
の範囲で内筒部材が外筒部材に対し自由に振動するが、
悪路などの走行の際にフルバウンドになると、ストッパ
部材の上面に横連結ゴム部材の下面が押し付けられる状
態となって、バウンド側クリアランスを規定できる。Regarding vertical vibration within a steady range during traveling, the inner cylinder member freely vibrates with respect to the outer cylinder member within a range until the lower surface of the horizontal connecting rubber member contacts the upper surface of the stopper member,
When the vehicle is in full bounce during traveling on a bad road or the like, the lower surface of the lateral connecting rubber member is pressed against the upper surface of the stopper member, and the bound clearance can be defined.

この場合、横連結ゴム部材とストッパ部材とが干渉して
も、横連結ゴム部材は弾性材からなり、一方、ストッパ
部材はなめらかな外形の合成樹脂からなっているので、
相互の干渉による衝突の影響は緩和され、損傷も生じな
い。In this case, even if the horizontal connecting rubber member and the stopper member interfere with each other, the horizontal connecting rubber member is made of an elastic material, while the stopper member is made of a synthetic resin having a smooth outer shape.
The impact of collisions due to mutual interference is mitigated and no damage occurs.

また、オリフィスが、外筒部材の軸方向両端の大径部外
周に嵌着されるシールカラーのシールゴムを加硫接着し
た内周と、一端部を除き該内周に頂面が当接される周方
向のリブを外周の中心線上に突設して他端部の同じリブ
一側に設けた開口位置のみ異にする同一形状の上下一組
のオリフィス部材と、これらオリフィス部材の上記リブ
を有しない一端部の衝合せ部に介在し、オリフィス形成
面を上記オリフィス部材間で遮断する弾性体のオリフィ
ス閉鎖壁（15′）と、オリフィス部材の上記他端部の衝
合せ部に介在し、オリフィス形成面を上記オリフィス部
材間で上記開口側のリブ一側のみ遮断する弾性体のオリ
フィス閉鎖壁（15）とにより組立て形成されるので、す
べて同一部品としてのオリフィス部材の成形ならびにオ
リフィスの組立て形成は容易となり、かつリブ両側に形
成される２条のオリフィスはリブを有しない一端でオリ
フィス閉鎖壁（15′）により他方の流路に反転して連通
される長い流路の１本の液密オリフィスとなる。In addition, the orifice has an inner circumference formed by vulcanizing and adhering the seal rubber of the seal collar fitted to the outer circumference of the large diameter portion at both axial ends of the outer tubular member, and the top surface abuts on the inner circumference except for one end. A pair of upper and lower orifice members of the same shape having circumferential ribs projecting on the center line of the outer periphery and provided on one side of the same rib at the other end, but having different opening positions, and the ribs of these orifice members are provided. The orifice closing wall (15 ') made of an elastic material which is interposed in the abutting portion at one end and blocks the orifice forming surface between the orifice members and the abutting portion at the other end in the orifice member, Since the forming surface is assembled and formed by the orifice closing wall (15) of the elastic body that blocks only one side of the rib on the opening side between the orifice members, the molding of the orifice member and the assembly shape of the orifice are formed as the same part. The formation of the liquid is easy, and the two orifices formed on both sides of the rib have a long flow path that is connected to the other flow path by inverting it with the orifice closing wall (15 ') at one end that does not have a rib. It becomes a dense orifice.

一方、横連結ゴム部材上面とダイアフラムとの間の空間
部に、該ダイアフラムの肩部を非圧縮又は予圧縮の状態
で接触する形状のダイアフラムカバーを設けてなること
によって、横連結ゴム部材の過大変形やリバウンド量を
規定することができ、また、横連結ゴム部材とダイアフ
ラムとの直接接触を防いでダイアフラムの損傷を防止
し、ダイアフラムの耐久性を向上させる。On the other hand, in the space between the upper surface of the horizontal connecting rubber member and the diaphragm, a diaphragm cover having a shape in which the shoulder portion of the diaphragm is brought into contact with the diaphragm in a non-compressed or pre-compressed state is provided. The amount of deformation and rebound can be regulated, and direct contact between the lateral connecting rubber member and the diaphragm is prevented to prevent damage to the diaphragm and improve the durability of the diaphragm.

さらに、シールカバー両端に延設した廂部を外筒部材の
大径部及びダイアフラムカバーの両端縁部を包み込む方
向に夫々折り曲げてかしめるだけで、シールカラーと外
筒部材及びダイアフラムは該かしめ部で強固に固定され
て強負荷時においてもシールカバーやダイアフラムカバ
ーのズレや抜け出しはなく、防振機能を充分に発揮し、
維持し得ることになるのである。The seal collar, the outer cylinder member, and the diaphragm are simply crimped by bending the ridges extending to both ends of the seal cover in a direction to wrap the large diameter portion of the outer cylinder member and the both end edges of the diaphragm cover, respectively. The seal cover and diaphragm cover do not slip out or slip out even when they are heavily loaded, and the vibration-proof function is fully demonstrated.
It can be maintained.

（実施例） 以下、本考案の実施例を添付図面により説明する。(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

第１図及び第２図において、（１）は自動車のエンジン
又は車体側に固定する外筒部材、（２）は車体又はエン
ジン側に取り付ける内筒部材を示し、両部材（１），
（２）は同心又は僅かに内筒部材（２）の方が垂直上方
に偏心して軸平行した状態で組付けられるが、該内筒部
材（２）は例えば円筒が用いられてボルトによって車体
又はエンジン側に固定されるようになっており、両部材
（１），（２）は何れも軸水平にさせて相手側部材に取
り付ける。1 and 2, (1) shows an outer cylinder member fixed to the engine or the vehicle body side of an automobile, (2) shows an inner cylinder member attached to the vehicle body or the engine side, and both members (1),
As for (2), the inner cylinder member (2) is assembled in a state where the inner cylinder member (2) is eccentric vertically upward and is axially parallel. It is designed to be fixed to the engine side, and both members (1) and (2) are attached to the mating member while making their axes horizontal.

上記両部材（１），（２）は防振基体（３）により連結
して、所定配置関係の二重筒に一体保持させているが、
内筒部材（２）は金属製単体のパイプに形成しているの
に対して、外筒部材（１）は、その周方向に延在し両端
が内周面に開口するオリフィス（12），（13）を設ける
上で好適な形態となす点で図示する如く、金属製など剛
体からなる円筒体の両端部を中間部に比して若干大径の
大径部（16）となした中くびれの異径筒を使用して、軸
水平取付状態としたときの水平中心面よりも下方に、第
１孔（７）′を窓状にくり抜かせて設け、一方、水平中
心面よりも上方に第２孔（８）′を同様に設けており、
該両大径部（16），（16）間に亘らせてその外周に嵌着
される後述のシールカラー（18）内周と上記中くびれ部
の外周に第３図に点線で示す如く嵌着される上，下のオ
リフィス部材（17），（17）外周との間に第1,2図に示
す如きリブ（21）で区分された扁平なオリフィス（1
2），（13）が形成されている。The two members (1) and (2) are connected by a vibration-proof substrate (3) and are integrally held by a double cylinder having a predetermined arrangement.
The inner cylinder member (2) is formed of a single pipe made of metal, whereas the outer cylinder member (1) extends in the circumferential direction and has orifices (12) whose both ends are open to the inner peripheral surface. As shown in the figure in that it is a preferable form for providing (13), both ends of a cylindrical body made of a rigid body such as metal are made to have a large diameter part (16) slightly larger than the middle part. The first hole (7) ′ is hollowed out like a window below the horizontal center plane when the shaft is mounted horizontally using a constricted tube with a different diameter. On the other hand, above the horizontal center plane. The second hole (8) 'is similarly provided in
As shown by a dotted line in FIG. 3, the inner circumference of a seal collar (18), which will be described later, and the outer circumference of the middle constriction, which are fitted on the outer circumference of the large diameter parts (16) and (16). A flat orifice (1) divided by ribs (21) as shown in FIGS. 1 and 2 between the upper and lower orifice members (17) and (17) to be fitted.
2) and (13) are formed.

即ち、上記、上，下のオリフィス部材（17），（17）は
いずれも第５図に示す如く周方向のリブ（21）を外周の
中心線上にその両側の第1,2の各オリフィス形成面（1
2）′，（13）′を区切って突設した断面凸状の半円筒
形状をなす剛体、例えば硬質又は可撓性合成樹脂又はア
ルミ等の成形品になり、その内径は外筒部材（１）の大
径部（16），（16）間の中くびれ部分の外周に密嵌合し
得る大きさで、また上記リブ（21）頂面での外径は外筒
部材（１）の大径部（16）と同寸法を有して所定長さの
同一形状に形成されており、上部側に配するオリフィス
部材（17）一端側には前記外筒部材（１）の第２孔
（８）′に通じる第２開口（20）が、他方下部側に配す
オリフィス部材（17）の一端側には同第１孔（７）′に
通じる第１開口（19）が、いずれも前記第１オリフィス
形成面（12）′側に夫々穿設され、更に両者ともにリブ
（21）の他端側を第５図に点線で示す如く夫々所定長さ
だけ欠如した構造となっており、かく形成することによ
り後述する内面に薄肉のシールゴム（14）を加硫接着し
たシールカラー（18）が外筒部材（１）両端の大径部
（16），（16）外周に嵌着されたとき、該シールカラー
（18）とその内面にリブ（21）頂面が当接するオリフィ
ス部材（17），（17）とによってリブ（21）の両側に夫
々扁平流路の第２オリフィス（13）と開口を有する第１
オリフィス（12）とが形成されるようになっている。That is, as shown in FIG. 5, the upper and lower orifice members (17) and (17) have circumferential ribs (21) formed on the center line of the outer circumference to form the first and second orifices on both sides thereof. Face (1
2) ′, (13) ′ are divided into projecting sections, and have a semi-cylindrical rigid body with a convex cross-section, for example, a molded product of hard or flexible synthetic resin or aluminum, the inner diameter of which is the outer cylinder member (1 ) Of the outer cylindrical member (1), and the outer diameter of the rib (21) at the top surface is large enough to fit tightly on the outer circumference of the constricted portion between the large diameter portions (16) and (16). The orifice member (17), which has the same size as the diameter portion (16) and a predetermined length and is formed in the same shape, has the second hole () of the outer cylinder member (1) at one end of the orifice member (17). The second opening (20) leading to 8) ′ and the first opening (19) leading to the first hole (7) ′ are provided at one end of the orifice member (17) arranged on the other lower side. The first orifice forming surface (12) 'is provided with a hole, and the other end of the rib (21) is lacking by a predetermined length as shown by the dotted line in FIG. By forming in this way, the seal collar (18), which is obtained by vulcanizing and adhering a thin seal rubber (14) to the inner surface to be described later, is fitted on the outer circumference of the outer cylinder member (1) at the large diameter portions (16) and (16). At this time, the seal collar (18) and the orifice members (17) and (17) with which the top surface of the rib (21) abuts the inner surface of the seal collar (18), the second orifice (13) of the flat flow passage is provided on both sides of the rib (21). With opening 1
An orifice (12) is formed.

そして、前述した構造の内筒部材（２）と外筒部材
（１）とを連結一体化するための防振基体（３）は、第
１〜３各図に示す如く横連結ゴム部材（10）と縦連結ゴ
ム部材（11）とから形成していて、前記両部材（１），
（２）を連結する部材として、また振動を吸収する防振
部材として主に機能するのはブロック状をなす横連結ゴ
ム部材（10）であり、一方、縦連結ゴム部材（11）は吸
振の一部を分担する他に、後記する液体が封入される第
１液室（７）を形成する壁部材として機能している。The vibration-damping base (3) for connecting and integrating the inner cylinder member (2) and the outer cylinder member (1) having the above-described structure is provided with a lateral connection rubber member (10) as shown in FIGS. ) And a vertical connecting rubber member (11), and both members (1),
The block-shaped horizontal connecting rubber member (10) mainly functions as a member that connects (2) and as a vibration absorbing member that absorbs vibration, while the vertical connecting rubber member (11) is a vibration absorbing member. In addition to sharing a part, it functions as a wall member that forms a first liquid chamber (7) in which a liquid described later is sealed.

横連結ゴム部材（10）は内筒部材（２）を囲繞し、か
つ、外筒部材（１）の両端大径部（16），（16）も含め
た横方向の左右両側部の間に軸方向の全長に亘らせて両
筒部材（１），（２）を連結せしめるが、その際、外筒
部材（１）に夫々設けた第１孔（７）′の上方と第２孔
（８）′の下方に位置してそれら各孔（７）′，
（８）′を塞がないように設ける。The lateral connecting rubber member (10) surrounds the inner tubular member (2) and is provided between the left and right lateral portions of the outer tubular member (1) including the large diameter portions (16) and (16) at both ends. Both tubular members (1) and (2) are connected over the entire length in the axial direction, but at this time, above the first hole (7) 'and the second hole provided in the outer tubular member (1) respectively. Located underneath (8) ', those holes (7)',
(8) 'is provided so as not to be blocked.

一方、縦連結ゴム部材（11）は、横連結ゴム部材（10）
の軸側両端部と外筒部材（１）両端の大径部（16），
（16）の対応する両端部のうち横連結ゴム部材（10）よ
りも下方の個所との間に軸に対し縦方向に夫々亘らせて
設けている。On the other hand, the vertical connecting rubber member (11) is the horizontal connecting rubber member (10).
The large diameter parts (16) at both ends of the shaft side of the outer cylinder member (1),
It is provided so as to extend in the longitudinal direction with respect to the shaft between the corresponding end portions of (16) and a portion below the horizontal connecting rubber member (10).

それ等両ゴム部材（10），（11）は外筒部材（１）と内
筒部材（２）とに対して、加硫接着によって一体成形に
より強力に固着せしめる。Both rubber members (10) and (11) are firmly fixed to the outer cylinder member (1) and the inner cylinder member (2) by vulcanization adhesion by integral molding.

かくして、外筒部材（１）、内筒部材（２）、防振基体
（３）により囲まれて内筒部材（２）と横連結ゴム部材
（10）の下方に位置する第１液室（７）が形成され、こ
の第１液室（７）は外筒部材（１）の第１孔（７）′に
臨む下面に位置して嵌着された下部のオリフィス部材
（17）の第１開口（19）を介してオリフィス（12）と連
通せしめられており、更に該第１液室（７）内には、第
１〜３図に示す如く長さが該液室（７）内半径より長く
下面がオリフィス部材（17）と同曲率で両側に凹部を有
して外周に角部が全くなく第１液室（７）内で上，下，
左，右方向に動き得る形状に形成された合成樹脂からな
るストッパ部材（５）が浮遊状に収設されている。Thus, the first liquid chamber (which is surrounded by the outer cylinder member (1), the inner cylinder member (2), and the vibration isolating base (3) and located below the inner cylinder member (2) and the lateral connection rubber member (10) ( 7) is formed, and the first liquid chamber (7) is located at the lower surface of the outer cylinder member (1) facing the first hole (7) 'and is fitted into the first orifice member (17) of the lower portion. The first liquid chamber (7) is communicated with the orifice (12) through the opening (19), and the inside of the first liquid chamber (7) has a length as shown in FIGS. The longer and lower surface has the same curvature as the orifice member (17) and has concave portions on both sides, and there are no corners on the outer periphery, so that the upper and lower parts in the first liquid chamber (7) are
A stopper member (5) made of synthetic resin formed in a shape that can move in the left and right directions is accommodated in a floating manner.

なお、前記外筒部材（１）両側の、第１孔（７）′と第
２孔（８）′との間に存する各中くびれ部材の外周面に
は、第1,第２両図に示す如く、その外周に嵌着される
上，下オリフィス部材（17），（17）の各一端間に、両
者の第１オリフィス形成面（12）′，（12）′のみ遮断
するやや広幅のオリフィス閉鎖壁（15）を、またリブ
（21）を有しない他端間に第1,第２両オリフィス形成面
（12）′，（12）′、（13）′，（13）′を遮断するオ
リフィス閉鎖壁（15）′を夫々リブ（21）と同じ高さを
有してゴム部材により突設せしめている。It should be noted that the outer peripheral surface of each of the middle constricted members existing between the first hole (7) 'and the second hole (8)' on both sides of the outer tubular member (1) is shown in Figs. As shown, between the upper and lower orifice members (17) and (17) fitted on the outer periphery, only the first orifice-forming surfaces (12) 'and (12)' of both members are blocked, so that they have a slightly wide width. Blocks the orifice closing wall (15) and the first and second orifice forming surfaces (12) ', (12)', (13) ', (13)' between the other ends without ribs (21) The respective orifice closing walls (15) 'having the same height as that of the ribs (21) are projected by a rubber member.

一方、第１図乃至第３図において、（４）はダイアフラ
ムであってゴム薄板から成形され、内筒部材（２）上部
の横連結ゴム部材（10）の上面と外筒部材（１）の大径
部（16），（16）間の上部内面との間に、それらの両曲
面と適宜間隔を存せしめて展延されるとともに、その全
周縁が第２孔（８）′を囲む外筒部材（１）の中くびれ
部の内面に加硫接着により液密一体に固着せしめてい
る。On the other hand, in FIGS. 1 to 3, (4) is a diaphragm, which is molded from a thin rubber plate, and is formed of a thin rubber plate, and the upper surface of the horizontal coupling rubber member (10) above the inner cylinder member (2) and the outer cylinder member (1) are separated from each other. Between the large-diameter parts (16) and the upper inner surface between the (16) and the curved surfaces thereof, the outer circumference is surrounded by the outer circumference of the second hole (8) '. The tubular member (1) is liquid-tightly fixed to the inner surface of the constricted portion by vulcanization.

そして、上記横連結ゴム部材（10）上面とダイアフラム
（４）下面との間の、防振基体（３）の軸方向両側に開
口する空間部には、横連結ゴム部材（10）の変位範囲を
規制するために、ダイアフラム（４）肩部全周に対し非
圧縮又は予圧縮の状態で接触し得て、かつ外筒部材
（１）の大径部（16），（16）内周から中くびれ部の第
２孔（８）′周縁部のダイアフラム（４）肩部下面に係
合する段状部と底面が内筒部材（２）上部の横連結ゴム
部材（10）上面に係合する形状に形成された特に請求項
３に係る金属性のダイアフラムカバー（６）が第１〜３
各図に示す如く嵌挿、固着せしめている。A displacement range of the horizontal connecting rubber member (10) is provided in a space between the upper surface of the horizontal connecting rubber member (10) and the lower surface of the diaphragm (4), which is open on both sides in the axial direction of the vibration isolating base (3). In order to regulate the pressure, the diaphragm (4) can come into contact with the entire circumference of the shoulder portion in a non-compressed or pre-compressed state, and from the inner circumference of the large diameter portions (16), (16) of the outer tubular member (1). Second step hole (8) 'in the middle constricted portion Diaphragm (4) at the peripheral portion of the diaphragm (4) The stepped portion engaging with the shoulder lower surface and the bottom surface engage with the upper surface of the lateral connecting rubber member (10) above the inner cylinder member (2) In particular, the metallic diaphragm cover (6) according to claim 3 formed in the shape of
It is fitted and fixed as shown in each figure.

また、第1,第２及び第４図において、（18）は特に第４
図に例示する請求項４に係る金属等剛体の円筒からなる
シールカラーであって、前記外筒部材（１）両端の大径
部（16），（16）の間の中くびれ部の外周面に嵌着され
たオリフィス部材（17）のリブ（21）頂面と密嵌合し得
る内径を有し、かつ軸方向両端の相対する位置に、少な
くとも前記ダイアフラムカバー（６）両端部の幅と、該
両端部を外筒部材（１）の大径部（16）の外端縁を超え
て下方に巻き込みかしめ固定できるかしめ部（９）の形
成に十分な長さを有して夫々外方に延出せしめた廂部
（22）を設けており、該廂部（22）を含む、又は除く内
面に液密化のための薄肉のシールゴム（14）を加硫接着
して形成せしめている。Further, in FIGS. 1, 2 and 4, (18) is particularly the fourth
A seal collar formed of a rigid cylinder of metal or the like according to claim 4 illustrated in the figure, wherein the outer peripheral surface of the middle constricted portion between the large diameter portions (16) at both ends of the outer tubular member (1). Of the orifice member (17) fitted in the upper end of the diaphragm cover (6) has an inner diameter capable of tightly fitting with the top surface of the rib (21) and has a width of at least both ends of the diaphragm cover (6) at positions where both ends in the axial direction face each other. , Both ends of the outer cylinder member (1) having a length sufficient to form a crimping portion (9) that can be wound down below the outer end edge of the large diameter portion (16) and crimped and fixed, Is provided with an extended ridge portion (22), and a thin sealing rubber (14) for liquid tightness is vulcanized and adhered to the inner surface including or excluding the ridge portion (22). .

以上の如く防振基体（３）により内筒部材（２）と一体
化せしめた外筒部材（１）の第１孔（７）′側の下部空
間部にはストッパ部材（５）を第３図に示す如く収設
し、また軸方向の上部両側面に開口する外筒部材（１）
と横連結ゴム部材（10）との間の空間部内には内筒部材
（２）を含む横連結ゴム部材（10）を一時下方に押圧し
た状態にして拡げた空間部内に前記ダイアフラムカバー
（６）を所定位置に嵌入してから押圧力を解いて嵌着せ
しめた後、外筒部材（１）の中くびれ部外周に上，下の
オリフィス部材（17），（17）を第３図に点線示する所
定の位置に夫々嵌着し、更にそのリブ（21）頂面を間に
挟んだ外筒部材（１）両端の大径部（16），（16）外周
に対しシールカラー（18）を、エチレングリコール等の
不凍液からなる液体を満たした液槽中において嵌合関係
で組み付けてから槽外に取出し、その両端の廂部（22）
を第４図の矢視の方向に折り曲げてかしめ固定せしめる
ことにより、前記外筒部材（１）下部の第１孔（７）′
に臨む空間部及び上部の第２孔（８）′に臨む空間部に
は、夫々液が充填されて第１液室（７）及び第２液室
（８）を形成すると共に、シールカラー（18）内周と上
下オリフィス部材（17），（17）外周との間には、第１
液室（７）に通じる第１開口（19）から下部の第１オリ
フィス（12）を経て、オリフィス閉鎖壁（15）′の一面
で反転し下部と上部の第２オリフィス（13）を経て再度
オリフィス閉鎖壁（15）′の他面で反転して上部の第１
オリフィス（12）を経て第２開口（20）から第２液室
（８）に至る、及び逆方向の長い扁平流路が液密に形成
されて組立ては完了する。As described above, the stopper member (5) is provided in the lower space portion on the side of the first hole (7) 'of the outer tubular member (1) which is integrated with the inner tubular member (2) by the vibration isolating base (3). An outer cylinder member (1) that is housed as shown in the figure and that is open at both axial upper side surfaces
The horizontal cover rubber member (10) including the inner tubular member (2) is temporarily pressed downward in the space between the horizontal connection rubber member (10) and the space cover and the diaphragm cover (6) is expanded. ) Is inserted into a predetermined position, and then the pressing force is released to make it fit, and the upper and lower orifice members (17) and (17) are shown in FIG. 3 on the outer circumference of the middle neck portion of the outer cylinder member (1). A seal collar (18) is attached to the outer circumference of the large diameter parts (16) and (16) at both ends of the outer tubular member (1) with the ribs (21) top faces sandwiched between the ribs (21) and the predetermined positions indicated by dotted lines. ) Are assembled in a liquid tank filled with a liquid consisting of antifreeze liquid such as ethylene glycol in a fitting relationship, and then taken out of the tank, and the ends (22)
4 is bent in the direction of the arrow in FIG. 4 and is caulked and fixed, so that the first hole (7) ′ in the lower part of the outer cylinder member (1) is fixed.
The space portion facing the space and the space portion facing the upper second hole (8) 'are respectively filled with liquid to form a first liquid chamber (7) and a second liquid chamber (8), and a seal collar ( 18) Between the inner circumference and the upper and lower orifice members (17) and (17) outer circumference, there is a first
From the first opening (19) leading to the liquid chamber (7), through the lower first orifice (12), and reversing at one surface of the orifice closing wall (15) ', and again through the lower and upper second orifices (13). The other side of the orifice closing wall (15) '
A long flat flow path extending in the opposite direction from the second opening (20) to the second liquid chamber (8) through the orifice (12) is formed liquid-tight to complete the assembly.

かくして得られた防振マウントは、外筒部材（１）をエ
ンジン又は車体側に、内筒部材（２）を車体又はエンジ
ン側に夫々取り付け軸水平にして使用する。The anti-vibration mount thus obtained is used with the outer cylinder member (1) attached to the engine or vehicle body side and the inner cylinder member (2) attached to the vehicle body or engine side, with their axes horizontal.

そしてエンジンからの振動が外筒部材（１）に加わる
と、防振基体（３）の振動も併せて発生することから、
第１液室（７）と第２液室（８）とでは容積変化が生
じ、液体がオリフィス（12），（13）を通じて可逆的な
流通を行う。When vibration from the engine is applied to the outer cylinder member (1), vibration of the vibration damping base (3) is also generated.
Volume change occurs in the first liquid chamber (7) and the second liquid chamber (8), and the liquid reversibly flows through the orifices (12) and (13).

その結果、液体の持つ粘性により低周波数振動領域では
高い減衰特性が得られる。As a result, due to the viscosity of the liquid, high damping characteristics can be obtained in the low frequency vibration region.

一方、振動数が高い場合は、液体流動は入力振動と同期
し難くなって所定の振動数において液自体が共振現象を
呈することにより、低い動的バネ定数を示し、高周波数
域での振動伝達率を下げるのである。On the other hand, when the frequency is high, it becomes difficult for the liquid flow to synchronize with the input vibration, and the liquid itself exhibits a resonance phenomenon at a predetermined frequency, thus exhibiting a low dynamic spring constant and transmitting vibration in the high frequency range. Reduce the rate.

そして、走行中に路面より伝わる大振動時等における、
内筒部材（２）のバウンド量は、上方向では横連結ゴム
部材（10）とダイアフラムカバー（６）が、また下方向
では下面をオリフィス部材（17）とシールカラー（18）
により支承されたストッパ部材（５）上面への横連結ゴ
ム部材（10）下面の当接によって制限され、また下方向
のバウンド限度量の決定はストッパ部材（５）の上下側
厚みの変更により可能で、その他の部材の寸法関係は固
定的である。And, at the time of large vibration transmitted from the road surface while traveling,
Regarding the bounce amount of the inner cylinder member (2), the horizontal connecting rubber member (10) and the diaphragm cover (6) are upward, and the lower surface is the orifice member (17) and the seal collar (18) in the downward direction.
It is limited by the abutment of the lower surface of the lateral coupling rubber member (10) to the upper surface of the stopper member (5) supported by, and the downward bounce limit can be determined by changing the thickness of the stopper member (5) on the upper and lower sides. Therefore, the dimensional relationship of the other members is fixed.

なお、外筒部材（１）の中くびれ部外周及び両端大径部
（16），（16）の互いに相対する内面にはシール性を向
上させために横連結ゴム部材（10）に連らなる薄肉のシ
ールゴム（14）を夫々加硫接着せしめているが、他方、
その外筒部材（１）外周に嵌着せしめる前記シールカラ
ー（18）内面のシールゴム（14）のうち、上記外筒部材
（１）の大径部（16）内面のシールゴム（14）の周端縁
が嵌着する位置を挟みその両側にシール性を更に向上せ
しめる２条の微小リブ（14）′，（14）′を環状に設け
ることも可能である。It should be noted that the outer cylindrical member (1) is connected to the lateral connection rubber member (10) on the outer circumference of the constricted part and the inner surfaces of the large diameter parts (16), (16) facing each other so as to improve the sealing performance. Each thin seal rubber (14) is vulcanized and bonded, but on the other hand,
Out of the seal rubber (14) on the inner surface of the seal collar (18) to be fitted around the outer cylinder member (1), the peripheral end of the seal rubber (14) on the inner surface of the large diameter portion (16) of the outer cylinder member (1). It is also possible to form two minute ribs (14) 'and (14)' in an annular shape on both sides of the position where the edges are fitted to further improve the sealing property.

（考案の効果） 本考案は以上詳述したように防振基体だけでなく液体減
衰による低周波振動の減衰と高周波振動の振動しゃ断と
を行わせ得るので、車室内の低振動、低騒音を効果的に
果たせることができる。(Effects of the Invention) As described in detail above, the present invention can perform damping of low-frequency vibrations and damping of high-frequency vibrations by liquid damping as well as the anti-vibration substrate. It can be done effectively.

さらに第１液室内になめらかな外形のストッパ部材を設
けているのでストッパ機構がコンパクトで各部材が損傷
することなく確実に機能する構造となり、かつ該ストッ
パ部材の厚みを変えるだけでバウンド限度量を変更でき
ることから、クリアランスの調整も容易となり設計上有
利であるのみならず、外筒部材の外周に、オリフィス部
材とシールカラーとを嵌着するだけで長い扁平流路のオ
リフィスが容易に形成できると共に、オリフィス部材そ
のものも同一形状でよいので共通部品として成形容易で
かつ成形型も１種としてコストを低減することができ
る。Further, since a stopper member having a smooth outer shape is provided in the first liquid chamber, the stopper mechanism is compact and has a structure that surely functions without damaging each member, and the bounding amount can be limited only by changing the thickness of the stopper member. Since it can be changed, not only the clearance can be easily adjusted, which is advantageous in design, but a long flat flow path orifice can be easily formed only by fitting the orifice member and the seal collar to the outer circumference of the outer cylinder member. Since the orifice members themselves may have the same shape, they can be easily molded as a common part and the cost can be reduced by using only one molding die.

また、上記オリフィス部材の衝合せ部にオリフィス閉鎖
壁が介在することから、このオリフィス部材の液室に対
する周方向の位置決めが自動的に行われることになり、
これにより防振マウントの組立てを極めて容易にするこ
とができる。Further, since the orifice closing wall is interposed in the abutting portion of the orifice member, the circumferential positioning of the orifice member with respect to the liquid chamber is automatically performed.
As a result, the assembly of the vibration proof mount can be made extremely easy.

更に、ダイアフラムカバーの形状及び取着態様をダイア
フラムや横連結ゴム部材の保護に好適ならしめ、しかも
該ダイアフラムバーそのものもシールカラー両端に設け
た廂部により外筒部材とも一体にかしめ固定せしめるの
でマウント全体として部品の損傷は勿論のことズレや抜
け出も完全に防止して防振機能を充分に発揮し維持し得
ることになり、製造ならびに組立て容易で耐久性に優
れ、かつ極めて経済的な実用性に富む円筒型液封入防振
マウントである。In addition, the shape and attachment mode of the diaphragm cover are suitable for protecting the diaphragm and the laterally connected rubber member, and the diaphragm bar itself is also caulked and fixed integrally with the outer cylinder member by the ridges provided at both ends of the seal collar. As a whole, not only damage to parts but also slippage and slipping out can be completely prevented and the vibration damping function can be sufficiently exerted and maintained, which is easy to manufacture and assemble, has excellent durability, and is extremely economically practical. It is a rich cylindrical liquid-filled anti-vibration mount.

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

第１図は本考案の１実施例に係る縦中心線断面図、第２
図は同第１図のＡ−Ａ線矢視断面図、第３図は同第１図
におけるマウント基部の斜視概略図、第４図は同第１図
におけるシールカラーの斜視図、第５図は同第１図にお
ける上，下のオリフィス部材の斜視図、第６図は従来の
防振マウントの正面図である。 （１）……外筒部材、（２）……内筒部材、（３）……
防振基体、（４）……ダイアフラム、（５）……ストッ
パ部材、（６）……ダイアフラムカバー、（７）……第
１液室、（８）……第２液室、（９）……かしめ部、
（10）……横連結ゴム部材、（11）……縦連結ゴム部
材、（12）……第１オリフィス、（13）……第２オリフ
ィス、（14）……シールゴム、（15），（15）′……オ
リフィス閉鎖壁、（16）……大径部、（17）……オリフ
ィス部材、（18）……シールカラー、（19）……第１開
口、（20）……第２開口、（21）……リブ、（22）……
廂部。FIG. 1 is a vertical centerline sectional view according to one embodiment of the present invention, and FIG.
1 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a schematic perspective view of a mount base in FIG. 1, and FIG. 4 is a perspective view of a seal collar in FIG. Is a perspective view of the upper and lower orifice members in FIG. 1, and FIG. 6 is a front view of a conventional vibration-proof mount. (1) …… Outer cylinder member, (2) …… Inner cylinder member, (3) ……
Anti-vibration substrate, (4) ... diaphragm, (5) ... stopper member, (6) ... diaphragm cover, (7) ... first liquid chamber, (8) ... second liquid chamber, (9) ...... Caulking section,
(10) ... Horizontally connected rubber member, (11) ... Vertically connected rubber member, (12) ... First orifice, (13) ... Second orifice, (14) ... Seal rubber, (15), ( 15) ′ …… Orifice closing wall, (16) …… Large diameter part, (17) …… Orifice member, (18) …… Seal collar, (19) …… First opening, (20) …… Second Opening, (21) …… rib, (22) ……
Kurabe.

フロントページの続き (72)考案者 高嶋 幸夫 愛知県西加茂郡三好町大字打越字生賀山３ 番地 東洋ゴム工業株式会社自動車部品技 術センター内 (72)考案者 濱手 誠一 愛知県西加茂郡三好町大字打越字生賀山３ 番地 東洋ゴム工業株式会社自動車部品技 術センター内 (72)考案者 西野 聡 愛知県西加茂郡三好町大字打越字生賀山３ 番地 東洋ゴム工業株式会社自動車部品技 術センター内 (56)参考文献 特開 平１−250636（ＪＰ，Ａ) 特開 平１−238731（ＪＰ，Ａ)Front page continuation (72) Inventor Yukio Takashima, Miyoshi-cho, Nishikamo-gun, Aichi 3rd Ikagayama, Uchikoshi, Toyo Tire & Rubber Co., Ltd. Automotive Parts Technology Center (72) Seiichi Hamate, Miyoshi-cho, Nishikamo-gun, Aichi Tochi Rubber Co., Ltd. No. 3 Igayama, Toyo Tire & Rubber Co., Ltd. (72) Inventor Satoshi Nishino No. 3 Toyama Rubber Co., Ltd. Miyoshi-cho, Nishikamo-gun, Toyo Rubber Co., Ltd. Toyo Tire & Rubber Co., Ltd. (56) Reference JP-A-1-250636 (JP, A) JP-A-1-238731 (JP, A)

Claims (3)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】周方向に延在し、かつ、両端が内周面に開
口する細通路からなるオリフィスを内蔵し、前記両開口
が上部側と下部側とに夫々位置する如く軸水平に固定さ
せる外筒部材内に、内筒部材を軸平行させて遊挿通し、
前記内筒部材を囲繞し、かつ外筒部材の水平方向左右両
側部の間に軸方向全長に亘らせ設けて外筒部材と内筒部
材とを連結せしめた横連結ゴム部材と、該横連結ゴム部
材の軸方向両端部と外筒部材との対応する両端部のうち
横連結ゴム部材よりも下方の個所との間に軸直角方向に
夫々亘らせた縦連結ゴム部材からなる防振基体を設け
て、前記オリフィスの下部側開口に臨んでなる密閉した
空間の第１液室を横連結ゴム部材の下方に形成せしめて
なり、一方、横連結ゴム部材の上面と外筒部材の上部内
面との間に、それ等両面とは適宜間隔を存せしめて、ダ
イアフラムを展延するとともに、その全周縁を前記オリ
フィスの上部側開口に囲まれて外筒部材の内面に液密に
固着せしめることにより、前記オリフィスを介し第１液
室に連通してなる密閉した空間の第２液室を横連結ゴム
部材の上方に形成せしめて、それ等両液室に液体を充填
せしめ、さらに第１液室内には、該液室内で上下左右に
動き得る合成樹脂からなるストッパ部材を収設した液封
入防振マウントにおいて、 上記オリフィスを、外筒部材の軸方向両端の大径部外周
に嵌着されるシールカラーのシールゴムを加硫接着した
内周と、一端部と除き該内周に頂面が当接される周方向
のリブを外周の中心線上に突設して他端部の同じリブ一
側に設けた開口位置のみ異にする同一形状の上下一組の
オリフィス部材と、これらオリフィス部材の上記リブを
有しない一端部の衝合せ部に介在し、オリフィス形成面
を上記オリフィス部材間で遮断する弾性体のオリフィス
閉鎖壁（15′）と、オリフィス部材の上記他端部の衝合
せ部に介在し、オリフィス形成面を上記オリフィス部材
間で上記開口側のリブ一側のみ遮断する弾性体のオリフ
ィス閉鎖壁（15）とにより組立て形成したことを特徴と
する円筒型液封入防振マウント。1. An orifice, which extends in the circumferential direction and has a narrow passage whose both ends open to the inner peripheral surface, is built in, and is fixed horizontally so that both openings are located on the upper side and the lower side, respectively. The inner cylinder member is inserted axially parallel to the outer cylinder member to be inserted,
A horizontal connecting rubber member that surrounds the inner tubular member and is provided between the left and right sides of the outer tubular member over the entire length in the axial direction to connect the outer tubular member and the inner tubular member, Anti-vibration consisting of vertical connecting rubber members extending axially perpendicularly between the axially opposite ends of the connecting rubber member and the corresponding end portions of the outer tubular member below the lateral connecting rubber member. A base is provided to form a first liquid chamber in a closed space facing the lower side opening of the orifice below the lateral connecting rubber member, while the upper surface of the lateral connecting rubber member and the upper portion of the outer tubular member are formed. The diaphragm is extended from the inner surface with an appropriate gap from the both surfaces, and the entire peripheral edge of the diaphragm is surrounded by the upper opening of the orifice and fixed to the inner surface of the outer tubular member in a liquid-tight manner. By this, the tight communication formed by communicating with the first liquid chamber through the orifice The second liquid chamber in the above space is formed above the horizontal connecting rubber member so that both liquid chambers can be filled with liquid, and the first liquid chamber is made of synthetic resin that can move vertically and horizontally in the liquid chamber. In the liquid-filled anti-vibration mount containing a stopper member, the above-mentioned orifice is vulcanized and bonded to the outer circumference of the large-diameter portion of both ends of the outer cylindrical member by vulcanization, and one end is provided. Except for the above, a pair of upper and lower pairs having the same shape are provided with a rib in the circumferential direction whose top surface is in contact with the inner circumference, projecting on the center line of the outer circumference, and different in only the opening position provided on one side of the same rib at the other end. Of the orifice member, and an orifice closing wall (15 ') of an elastic body which is interposed in the abutting portion of the one end portion of these orifice members which does not have the ribs and blocks the orifice forming surface between the orifice members, Intervene in the abutting part at the other end , Cylindrical liquid filled vibration isolating mount, characterized in that the assembly formed by the orifice closure wall of the elastic body that blocks the orifice formation surface only ribs on one side of the opening side between the orifice member (15). 【請求項２】横連結ゴム部材上面とダイアフラムとの間
の空間部に、横連結ゴム部材の変位及び第２液室の拡張
範囲を規制するための上記ダイアフラムの肩部全周に対
し非圧縮又は予圧縮の状態で接触する形状の板状体から
なるダイアフラムカバーを外筒部材の大径部下面に固着
してなることを特徴とする請求項１記載の円筒型液封入
防振マウント。2. A space between the upper surface of the lateral connecting rubber member and the diaphragm is uncompressed with respect to the entire circumference of the shoulder portion of the diaphragm for restricting the displacement of the lateral connecting rubber member and the expansion range of the second liquid chamber. 2. The cylindrical liquid-filled vibration-damping mount according to claim 1, further comprising a diaphragm cover formed of a plate-shaped body that is in contact with the pre-compressed state and is fixed to the lower surface of the large diameter portion of the outer cylinder member. 【請求項３】請求項２記載の円筒型液封入防振マウント
において、シールカラーの軸方向両端の、少なくともダ
イアフラムカバーの上部に位置する部分に、該ダイアフ
ラムカバー両端部へのかしめ固定可能な長さを有して夫
々外方に延出する廂部を設けたことを特徴とする円筒型
液封入防振マウント。3. The cylindrical liquid-filled vibration-damping mount according to claim 2, wherein a length at which both ends in the axial direction of the seal collar can be fixed by caulking to both ends of the diaphragm cover at least at a portion located above the diaphragm cover. A cylindrical liquid-filled anti-vibration mount, characterized in that each of them has a ridged portion extending outwardly.