JPH0530584U - Cylindrical liquid-filled anti-vibration mount - Google Patents
Cylindrical liquid-filled anti-vibration mountInfo
- Publication number
- JPH0530584U JPH0530584U JP8892391U JP8892391U JPH0530584U JP H0530584 U JPH0530584 U JP H0530584U JP 8892391 U JP8892391 U JP 8892391U JP 8892391 U JP8892391 U JP 8892391U JP H0530584 U JPH0530584 U JP H0530584U
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- inner cylinder
- rubber
- diaphragm
- liquid
- vibration
- Prior art date
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Abstract
(57)【要約】
【目的】 横設した内筒とこれを取り囲む外筒との間
に、内筒を挟み上下に夫々、オリフィスにて連通する液
室を設けた液封入エンジンマウントにおいて、悪路走行
時にダイヤフラムカバーとリバウンド側ゴムの衝突によ
って生じる異音，振動を防止する。
【構成】 液室（７）のダイヤフラム（４）を保護する
ダイヤフラムカバー（６）と、内筒（２）の上記ダイヤ
フラムカバー側に設けたリバウンド側ゴム（２２）の少
なくとも一方の干渉面を凹凸に形成したことを特徴とし
ている。
(57) [Summary] [Purpose] A liquid-filled engine mount that has a liquid chamber that is vertically connected with an inner cylinder sandwiched between a horizontally arranged inner cylinder and an outer cylinder that surrounds it Prevents abnormal noise and vibration caused by the collision of the diaphragm cover and the rubber on the rebound side when traveling on the road. [Structure] At least one of the interference surfaces of a diaphragm cover (6) for protecting the diaphragm (4) of the liquid chamber (7) and a rebound rubber (22) provided on the diaphragm cover side of the inner cylinder (2) is uneven. It is characterized by being formed in.
Description
【０００１】[0001]
本考案は、ＦＦ型自動車等におけるエンジンを車体に防振的に支持せしめるの に好適な円筒型液封入防振マウントに関するものである。 The present invention relates to a cylindrical liquid-filled vibration-damping mount suitable for supporting an engine of an FF type automobile or the like on a vehicle body in a vibration-proof manner.
【０００２】[0002]
ＦＦ型自動車等において、エンジンと車体との間に介装し、エンジンの振動が 車室内に直接伝播しないようにエンジンを車体に対して防振支持せしめるのに好 適な円筒型液封入防振マウントとしては既に種々多様なものが提案され、実用に 供されているものも多いが、それら防振マウントの一種として、例えば図６乃至 図８に示す如きものがある。 Cylindrical liquid-filled anti-vibration system, which is suitable for FF type automobiles, etc., which is interposed between the engine and the vehicle body and supports the engine with respect to the vehicle body so as to prevent vibration of the engine from directly propagating into the vehicle interior. A variety of mounts have already been proposed and many of them have been put to practical use. One type of such mounts is shown in FIGS. 6 to 8, for example.
【０００３】 即ち、図示の如く、金属製単体パイプの内筒（２）の外側に、円筒体の軸方向 の両端部（１６），（１６）を中間部に比し若干大径に段設した中ぐびれ状の異 径金属筒の第１外筒（１）をやや下方に偏心させて軸平行に配し、かつ、その軸 方向中間部の、前記内筒（２）の上方及び下方に位置する部分に方形の窓状にく り抜いた上，下の開口（７´），（８´）を塞ぐことなく、上記内筒（２）の全 長を囲繞して両側の第１外筒（１）の中間部内周までほぼ水平に亘らせた横連結 ゴム（１０）と、内筒（２）の軸方向両端部から下方の第１外筒（１）の両端部 （１６），（１６）及びそれに連らなる中間部まで、該中間部に設けた下側開口 （８´）を塞ぐことなく亘らせた縦連結ゴム（１１），（１１）からなるゴム弾 性体（３）で第１外筒（１）と内筒（２）とを一体に連結する一方、前記第１外 筒（１）の上側開口（７´）の周縁下面にはダイヤフラム（４）が展設され、そ れを下側で保護するダイヤフラムカバー（６）が装着されている。That is, as shown in the figure, outside the inner cylinder (2) of the metal single pipe, both axial end portions (16) and (16) are stepped with a diameter slightly larger than the intermediate portion. The first outer cylinder (1) of the middle constricted metal cylinder of different diameter is slightly eccentrically arranged downward and is arranged in parallel to the axis, and the axial middle portion thereof is located above and below the inner cylinder (2). A rectangular window is cut out in the part located at, and the entire length of the inner cylinder (2) is surrounded by the first opening on both sides without blocking the lower openings (7 ') and (8'). A laterally connected rubber (10) extending substantially horizontally to the inner circumference of the middle portion of the outer cylinder (1), and both end portions (16) of the first outer cylinder (1) below from both axial end portions of the inner cylinder (2). ), (16) and the intermediate part connected to it, the rubber elasticity consisting of the vertically connected rubbers (11), (11) that extend without blocking the lower opening (8 ') provided in the intermediate part. body At (3), the first outer cylinder (1) and the inner cylinder (2) are integrally connected, while the diaphragm (4) is provided on the lower surface of the peripheral edge of the upper opening (7 ') of the first outer cylinder (1). A diaphragm cover (6) is installed that protects it from the bottom.
【０００４】 また、上記第１外筒（１）の大径両端部（１６），（１６）間の中間部外周に はアルミ成型による上下一対の半円筒状のオリフィス部材（５），（５´）が、 衡合わせ端にシールゴム（１５），（１５´）を介装して嵌着されており、その 外周の中心線上には、後述する第２外筒（１´）の嵌着によりその内周との間に ２筋のオリフィス（１２），（１３）を形成させるオリフィス流路面（１２´） ，（１３´）を両側に有する如く流路を２分する周方向のリブ（９）が上記大径 両端部（１６），（１６´）と面一となる高さでシールゴム（１５´）が閉塞す る一端部を除いて突設され、また他端部の前記シールゴム（１５）が閉塞するリ ブ（９）一側には前記上下開口（７´），（８´）に連通する通孔（１９），（ ２０）が対称位置に穿設され、かつ前記下側の開口（８´）内上方の空洞内には 横連結ゴム（１０）の大変形を規制する樹脂製のストッパ部材（２１）が挿入さ れた上で液中で第１外筒（１）の外周に、内周にシールゴム膜（１４）を有する 金属製の薄肉円筒体の第２外筒（１´）が液密に嵌着されて、内部に上下の液室 （７），（８）と、それら両液室（７），（８）にリブ（９）一側の両端部の通 孔（１９），（２０）で連通する長い流路のオリフィス（１２），（１３）が液 密に形成されて防振マウントとして組立てられている。Further, a pair of upper and lower semi-cylindrical orifice members (5) and (5) made of aluminum are formed on the outer periphery of the intermediate portion between the large diameter end portions (16) and (16) of the first outer cylinder (1). ′) Is fitted to the balancing end with the seal rubbers (15) and (15 ′) interposed, and the second outer cylinder (1 ′), which will be described later, is fitted on the center line of the outer circumference thereof. A circumferential rib (9) that divides the flow passage into two so as to have orifice flow passage surfaces (12 ') and (13') on both sides that form two streak orifices (12) and (13) between the ribs (9). ) Is projectingly provided except at one end where the seal rubber (15 ') is closed at a height flush with the both ends (16), (16') of the large diameter, and the seal rubber (15) at the other end is provided. ) Is closed on one side of the rib (9) with through holes (19), (20) communicating with the upper and lower openings (7 '), (8'). A stopper member (21) made of resin for restricting large deformation of the lateral connecting rubber (10) is inserted into the cavity above the lower opening (8 ') at the symmetrical position. In the liquid, the second outer cylinder (1 '), which is a thin cylindrical metal body having a seal rubber film (14) on the inner circumference, is liquid-tightly fitted to the outer circumference of the first outer cylinder (1), To the upper and lower liquid chambers (7) and (8), and a long flow communicating with both liquid chambers (7) and (8) by through holes (19) and (20) at both ends on one side of the rib (9). The passage orifices (12), (13) are formed liquid-tight and assembled as a vibration-proof mount.
【０００５】[0005]
上記従来の防振マウントにあっては、ＦＦ自動車等のエンジンと車体側に軸水 平に取付けて装着し使用するときは、エンジンからの振動が伝わるとゴム弾性体 （３）も併せ振動して内部の上下液室（７），（８）間に容積変化を生じ液体が オリフィス（１２），（１３）を通じて可逆的に流通し、その結果、液体の粘性 により低周波数振動領域では高い振動減衰特性を発揮し、他方、高周波数振動領 域では液体流動は入力振動と同期し難くなって液自体が共振し低い動的バネ定数 を示して振動伝達率を下げて車室内での振動，騒音の低減に効果を奏する。 In the above-mentioned conventional anti-vibration mount, when the engine is mounted on the side of the engine and the vehicle body of an FF automobile, etc., and is mounted and used in the horizontal axis, when the vibration from the engine is transmitted, the rubber elastic body (3) also vibrates. The volume changes between the upper and lower liquid chambers (7) and (8) inside, and the liquid reversibly flows through the orifices (12) and (13). As a result, the liquid viscous causes high vibration in the low frequency vibration region. On the other hand, in the high frequency vibration region, the liquid flow becomes difficult to synchronize with the input vibration, and the liquid itself resonates to exhibit a low dynamic spring constant, which lowers the vibration transmissibility and reduces the vibration in the vehicle interior. Effective in reducing noise.
【０００６】 しかしながら、上記従来の防振マウントにあっては、自動車が、凹凸の激しい 、極度の悪路を走行する際に、コンコンという打音もしくは振動が車内に伝わる ことが、特に使用初期の防振マウントにおいて顕著である。これは、前記したダ イヤフラム保護とストッパーを兼ねるダイヤフラムカバー（６）と内筒の上部に 設けられたリバウンド側ゴム（２２）とが当たる瞬間の衝撃によるものと考える られる。However, in the above-mentioned conventional vibration-proof mount, when the automobile travels on an extremely rough road with severe unevenness, a tapping sound or vibration transmitted from the inside of the automobile is transmitted to the interior of the automobile, especially in the initial stage of use. It is remarkable in anti-vibration mounts. It is considered that this is due to the impact at the moment when the diaphragm cover (6), which also functions as a diaphragm protection and stopper, and the rebound side rubber (22) provided on the upper part of the inner cylinder hit each other.
【０００７】 本考案は叙上の如き実情に対処し、ダイヤフラムカバーとリバウンド側ゴムの 干渉面に新規な構成を見出すことにより、両者の衝突時の衝撃を緩和し、マウン ト使用初期においても前記異音や振動力の発生を防止することを目的とするもの である。The present invention copes with the actual situation as described above, and by discovering a new structure on the interference surface of the diaphragm cover and the rubber on the rebound side, the impact at the time of collision between the two is mitigated, and the above-mentioned even at the initial stage of mounting the mount. The purpose is to prevent the generation of abnormal noise and vibration force.
【０００８】[0008]
即ち、上記目的に適合する本考案の液封入防振マウントの特徴は、横設した内 筒と、該内筒を軸平行に取り囲む外筒と、これら内外筒間に介装させたゴム弾性 体により該内外筒間に内筒を挟み上下に夫々設けられた液室と、外筒の内周に沿 い該両液室を連通させるオリフィス流路とを備えると共に、少なくとも一方の液 室の内筒側に、ゴム膜からなるダイヤフラムを介して空気室を設けた円筒型液封 入防振マウントにおいて、上記ダイヤフラムと内筒との間に該ダイヤフラムを保 護するダイヤフラムカバーを両者間に間隙を存して介設すると共に、上記内筒の ダイヤフラムカバー側にシボ加工を施したリバウンド側ゴムを設け、これらダイ ヤフラムカバーならびにリバウンド側ゴムの少なくとも一方の干渉面を凹凸に形 成したところにある。 なお、ここでいう凹凸とは、凹あるいは凸、またはその両方を含む。 In other words, the features of the liquid-filled anti-vibration mount of the present invention that meet the above-mentioned purpose are that the inner cylinder is provided laterally, the outer cylinder that surrounds the inner cylinder in an axially parallel manner, and the rubber elastic body interposed between these inner and outer cylinders. The liquid chambers are provided above and below the inner cylinder between the inner and outer cylinders, respectively, and an orifice flow path is provided along the inner circumference of the outer cylinder for communicating the both liquid chambers. In a cylindrical liquid-sealed anti-vibration mount in which an air chamber is provided on the cylinder side through a diaphragm made of a rubber film, a diaphragm cover that protects the diaphragm is provided between the diaphragm and the inner cylinder. In addition to the existing interposer, the inner cover is provided with a textured rebound side rubber on the diaphragm cover side, and at least one of the diaphragm cover and rebound side rubber has an uneven interference surface. That. Note that the irregularities referred to herein include concaves, convexes, or both.
【０００９】[0009]
上記構成を有する本考案の防振マウントにおいては、ダイヤフラムカバーある いはリバウンド側ゴムの干渉面に設けた凹凸により、両者の衝突時の衝撃を緩和 することが可能であり、これによって、自動車の悪路走行時の前記異音及び振動 はマウントの初期使用時においても解消される。 In the anti-vibration mount of the present invention having the above-mentioned configuration, it is possible to mitigate the impact at the time of collision between the diaphragm cover or the rebound side rubber by the unevenness provided on the interference surface. The abnormal noise and vibration when traveling on a rough road can be eliminated even when the mount is initially used.
【００１０】[0010]
以下、更に添付図面を参照して、本考案に係る円筒型液封入防振マウントの実 施例を説明する。 Hereinafter, with reference to the accompanying drawings, an embodiment of the cylindrical liquid-filled vibration-damping mount according to the present invention will be described.
【００１１】 図１は本考案実施例の防振マウントを示す中央縦断面図、図２は図１のＡ−Ａ 線断面図、図３は（イ）〜（ホ）は同実施例のマウントの組立状態を示す概略斜 視図であり、これら図において、（１）は、外周に薄肉の第２外筒（１´）が被 嵌されてＦＦ自動車等のエンジン又は車体側に固定される第１外筒で、（２）は 車体又はエンジン側にボルト等によって固定される内筒を示し、該内筒（２）は 第１外筒（１）内にやや垂直上方に偏心して軸平行した状態で組付けられて、い ずれも前記エンジン又は車体の相手側部材に軸水平にさせて取付けられる。FIG. 1 is a central longitudinal sectional view showing a vibration-proof mount of an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIGS. 3A to 3E are mounts of the same embodiment. FIG. 3 is a schematic perspective view showing an assembled state of the above. In these drawings, (1) is fixed to the engine or the vehicle body side of an FF automobile or the like by fitting a thin second outer cylinder (1 ′) on the outer periphery. The first outer cylinder (2) indicates an inner cylinder fixed to the vehicle body or the engine side by a bolt or the like, and the inner cylinder (2) is eccentric to the first outer cylinder (1) slightly vertically upward and parallel to the axis. It is assembled in this state, and either of them is attached to the counterpart member of the engine or the vehicle body with its axis horizontal.
【００１２】 上記内筒（２）は金属製単体の厚肉パイプであり、その外側を囲む第１外筒（ １）は、図２に示す如く円筒体の軸方向の両端部（１６），（１６）を中間部に 比し若干大径に段設した中くびれ状の異径金属筒であり、該大径の両端部（１６ ），（１６）に挟まれた軸方向の中間部の、前記内筒（２）の上方及び下方に位 置する部分には方形の窓状に大きくくり抜いた上，下の開口（７´），（８´） が穿設されており、それら第１外筒（１）と内筒（２）とは、前記第１外筒（１ ）の上，下の開口（７´），（８´）を塞ぐことなく上記内筒（２）の全長を囲 繞し更にその両横から第１外筒（１）の軸方向中間部の内周まで図１に示す如く 横方向に亘らせた横連結ゴム（１０）と、その内筒（２）の軸方向両端部から下 方の第１外筒（１）の両端部（１６），（１６）及びそれに連なる中間部内周に かけて、該中間部に設けた下側の開口（８´）を塞ぐことなく図２図示の如く夫 々亘らせた縦連結ゴム（１１），（１１）からなるゴム弾性体（３）を加硫接着 することにより一体に強固に連結されて、前記内筒（２）の横連結ゴム（１０） で被覆された上，下面と第１外筒（１）の上，下の開口（７´），（８´）との 間には図１，図２の如く空洞が形成されている。The inner cylinder (2) is a single-walled thick pipe made of metal, and the first outer cylinder (1) surrounding the outside thereof is, as shown in FIG. 2, both ends (16) in the axial direction of the cylindrical body. (16) is a metal tube with a different diameter in the shape of a middle waist, which is arranged in a slightly larger diameter than the middle portion, and is of an intermediate portion in the axial direction sandwiched by both ends (16) and (16) of the large diameter. The upper and lower openings (7 ') and (8'), which are largely hollowed out in the shape of a rectangular window, are formed in the portions located above and below the inner cylinder (2). The outer cylinder (1) and the inner cylinder (2) cover the entire length of the inner cylinder (2) without blocking the upper and lower openings (7 ′) and (8 ′) of the first outer cylinder (1). As shown in FIG. 1, a horizontal connecting rubber (10) is surrounded by both sides of the first outer cylinder (1) and the inner periphery of the axially intermediate portion of the first outer cylinder (1), and the inner cylinder (2) thereof. Down from both axial ends of 1 As shown in FIG. 2, the outer cylinder (1) is extended to both ends (16) and (16) and the inner circumference of the intermediate portion continuous with the outer opening (8) without blocking the lower opening (8 ′) provided in the intermediate portion. A rubber elastic body (3) composed of a plurality of vertically connected rubbers (11) and (11) is vulcanized and bonded to firmly connect the rubber elastic body (3) to the lateral connection rubber (10) of the inner cylinder (2). 1), a cavity is formed between the upper and lower surfaces covered with) and the upper and lower openings (7 '), (8') of the first outer cylinder (1).
【００１３】 また、上記第１外筒（１）の上側の開口（７´）と内筒（２）上の横連結ゴム （１０）上面との間のほぼ中間には該第１外筒（１）の筒面とほぼ同じ曲面で薄 肉ゴムのダイヤフラム（４）がその周縁部で開口（７´）の周縁下面に加硫接着 により液密に展設されており、その下側には該ダイヤフラム（４）の下方部への 大きな変形及び横連結ゴム（１０）の上方への大きな変形を規制する金属製のダ イヤフラムカバー（６）が該ダイヤフラム（４）との間に空気室を形成して前記 開口（７´）周縁下面と内筒（２）上の横連結ゴム（１０）上面との間に装着さ れ、また下側の開口（８´）内には横連結ゴム（１０）の下方への大きな変形を 規制する樹脂製のストッパ部材（２１）が挿入されている。In addition, the first outer cylinder (a) is provided approximately in the middle between the upper opening (7 ′) of the first outer cylinder (1) and the upper surface of the lateral connecting rubber (10) on the inner cylinder (2). A thin rubber diaphragm (4) with a curved surface almost the same as the cylindrical surface of 1) is liquid-tightly extended by vulcanization adhesion to the lower surface of the peripheral edge of the opening (7 ') at its peripheral portion, and below it. A metal diaphragm cover (6) for restricting a large downward deformation of the diaphragm (4) and a large upward deformation of the lateral connecting rubber (10) is provided between the diaphragm (4) and the air chamber. Is formed between the lower surface of the peripheral edge of the opening (7 ') and the upper surface of the horizontal connecting rubber (10) on the inner cylinder (2), and the horizontal connecting rubber is provided in the lower opening (8'). A stopper member (21) made of resin is inserted to restrict a large downward deformation of (10).
【００１４】 そして、上記第１外筒（１）の大径の両端部（１６），（１６）外周には、内 周に薄肉のシールゴム（１４）が加硫接着された薄肉の金属円筒体よりなる第２ 外筒（１´）が図１，図２の如く嵌着されるが、更に上記第１外筒（１）の大径 の両端部（１６），（１６）に挟まれて中くびれ状に段設されている軸方向中間 部の全外周には、その外側に間隔をおいて被嵌される上記第２外筒（１´）内周 との間に扁平空間が形成されて、上下のオリフィス部材（５），（５）が嵌着さ れる。A thin-walled metal cylindrical body having a thin-walled seal rubber (14) vulcanized and bonded to the inner circumference is provided on the outer circumferences of the large-diameter end portions (16) and (16) of the first outer cylinder (1). The second outer cylinder (1 ') is fitted as shown in FIGS. 1 and 2, and is further sandwiched between the large-diameter end portions (16), (16) of the first outer cylinder (1). A flat space is formed between the inner circumference of the second outer cylinder (1 ′) which is fitted on the outer circumference of the axially intermediate portion, which is stepped in the shape of a middle waist, with a space therebetween. Then, the upper and lower orifice members (5) and (5) are fitted.
【００１５】 即ち、上記上，下のオリフィス部材（５），（５）は、いずれも各図に示す如 く周方向のリブ（９）が、外周の中心線上と両側端に、前記第１外筒（１）外周 に被嵌された第２外筒（１´）のシールゴム（１４）で被覆された内周に頂面で 当接し得る高さで、各リブ（９）…間に２筋の流路面（１２´），（１３´）を 有して突設され、かつ一端部は、図３（ニ）に示す如く中心線上のリブ（９）が なく、リブ（９）と同じ高さの遮断壁（１７）が両側端のリブ（９），（９）に 連なり突設されて上記２筋の流路面（１２´），（１３´）のＵターン路（１８ ）となし、他端部は、図３（イ）に示す如く２筋の流路面（１２´），（１３´ ）のうち、一方の流路面（１３´）が、一側端と中心線上のリブ（９），（９） 端に連なり同じ高さに突設された遮断壁（１７´）により閉鎖され、該閉鎖側流 路面（１３´）の同じ位置に同じ大きさの通孔（２０）を穿設して硬質又は可撓 性合成樹脂或いはアルミ製型等により同一寸法形状の半円筒体に成型されている 。That is, in each of the upper and lower orifice members (5) and (5), circumferential ribs (9) as shown in the respective figures are provided with the first rib on the center line of the outer circumference and on both side ends. The height is such that the top surface can contact the inner circumference of the second outer cylinder (1 ') covered with the seal rubber (14) fitted on the outer circumference of the outer cylinder (1). The ribs are projectingly provided with the flow passage surfaces (12 ') and (13'), and one end is the same as the rib (9) without the rib (9) on the center line as shown in Fig. 3 (d). The height blocking wall (17) is projected from the ribs (9) and (9) at both ends in a continuous manner to form the U-turn path (18) of the above two lines of flow paths (12 ') and (13'). As for the other end, as shown in FIG. 3 (a), one of the two flow passage surfaces (12 ') and (13') has a flow passage surface (13 ') on one side end and a rib on the center line ( 9), (9) Connect to the end It is closed by a blocking wall (17 ') protruding at the same height, and a through hole (20) of the same size is formed at the same position on the closed side flow surface (13') to make it hard or flexible. It is molded into a semi-cylindrical body of the same size and shape using a synthetic resin or an aluminum mold.
【００１６】 そして、上記の如き同一成型になる２本のオリフィス部材（５），（５）は、 前記ゴム弾性体（３）により内筒（２）と一体化せしめた第１外筒（１）の下方 開口（８´）内の空洞部にストッパ部材（２１）を収設した後、第１外筒（１） の中くびれ状中間部の外周に、オリフィス部材（５），（５）を、図３（イ）と （ハ）に示す如く一方をリブ（９）に対し反転させた状態で、同図（ロ）に点線 で示す如く両双の端面が、図１に示す如く第１外筒（１）の両側の中間部の外周 面で、一端部は必要によれば細条のゴム弾性体（１５´）を介し（図３（ニ）） 、また他端部は図３（ホ）のように夫々の片道流路面（１３），（１３´）を斜 めに連通させる状態に２つのゴム弾性体（１５），（１５）を遮断壁（１７´） ，（１７´）側に夫々介装させて嵌着し、更に上記各リブ（５）…の頂面を超え て第１外筒（１）の大径両端部（１６），（１６）の外周に対し第２外筒（１´ ）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で嵌着してか ら取出し、周縁部をかしめ固定せしめことにより、内部の、前記ダイヤフラム（ ４）の上面からオリフィス流路（１２´），（１３´）を経て両側の縦連結ゴム （１１），（１１）で挟まれた横連結ゴム（１０）の下面に至る第２外筒（１´ ）内周との間に存する各空洞，隙間内には夫々前記液体が満たされて、下方に空 間部が存するダイヤフラム（４）の上面には上側液室（７）が、他方、下側開口 （８´）内を経た奥部上方にはストッパ部材（２１）が浮遊する下側液室（８） が形成されると共に、第２外筒（１´）内周とオリフィス部材（５），（５）外 周との間には上，下液室（７），（８）に上，下の通孔（２０），（２０）で夫 々通じ一端部のＵターン路（１８），（１８）で夫々迂回する長い液流路をなす オリフィス（１２），（１３）が液密に形成されて円筒型液封入防振マウントと して組立られている。Then, the two orifice members (5), (5) which are molded in the same manner as described above are the first outer cylinder (1) integrated with the inner cylinder (2) by the rubber elastic body (3). ), The stopper member (21) is housed in the cavity in the opening (8 '), and then the orifice members (5), (5) are provided on the outer circumference of the middle constricted portion of the first outer cylinder (1). As shown in FIGS. 3 (a) and 3 (c), one of them is inverted with respect to the rib (9), and as shown by the dotted line in FIG. 1 On the outer peripheral surface of the intermediate portion on both sides of the outer cylinder (1), one end is provided with a rubber elastic body (15 ') of a strip if necessary (Fig. 3 (d)), and the other end is attached to As shown in (e), the two rubber elastic bodies (15), (15) are connected to the blocking walls (17 '), (in a state where the respective one-way flow passage surfaces (13), (13') are obliquely communicated with each other. 7 ') are respectively inserted and fitted to the outer circumference of the large diameter end portions (16) and (16) of the first outer cylinder (1) beyond the top surfaces of the ribs (5). On the other hand, the second outer cylinder (1 ') is fitted in a liquid tank filled with a liquid such as ethylene glycol or another antifreeze, and then taken out, and the peripheral edge portion is caulked and fixed, whereby the inside diaphragm (4) is removed. Second outer cylinder (1 ') from the upper surface of the nozzle to the lower surface of the lateral connecting rubber (10) sandwiched between the longitudinal connecting rubbers (11) and (11) through the orifice flow passages (12') and (13 ') ) The upper liquid chamber (7) is on the upper surface of the diaphragm (4) which is filled with the liquid in the respective cavities and gaps existing between the inner periphery and the space, and the lower space is present on the other side. A lower liquid chamber (8) in which the stopper member (21) floats is formed above the inner part through the opening (8 '), and 2 Between the inner circumference of the outer cylinder (1 ') and the outer circumferences of the orifice members (5), (5), upper and lower through holes (20), () in the lower liquid chambers (7), (8) 20) The U-turn passages (18) at the one end and the long liquid passages bypassing the U-turn passages (18), respectively, are formed liquid-tight in the orifices (12), (13) to form a cylindrical liquid-filled vibration isolation system. It is assembled as a mount.
【００１７】 一方、本考案の要部をなす前記ダイヤフラムカバー（６）と内筒（２）上部に 設けられたリバウンド側ゴム（２２）の構成は図１，図２に示す通りであり、こ の実施例ではリバウンド側ゴム（２２）の干渉面に４本の凸条（２３）…（２３ ）が設けられると共に、それらの表面にはシボ加工（２４）が施されている。凸 条（２３）は断面半球状を示し、中央の２本が両側の２本より大径に設けられて 、ダイヤフラムカバー（６）に段階的に当接しうるようになっている。 また、ダイヤフラムカバー（６）とリバウンド側ゴム（２２）の干渉面の構成 は、例えば図４に示す如く、ダイヤフラムカバー（６）の干渉面に複数の凸条（ ２３）を設けると共に、リバウンド側ゴム（２２）の干渉面にシボ加工（２４） を施したものや、図５に示す如く、ダイヤフラムカバー（６）の干渉面に複数の 凹溝（２５）を設け、リバウンド側ゴムは上記と同様にシボ加工（２４）を施し たもの等が好適であり、また凸条や凹溝の代わりに突起や凹部を形成してもよい 。さらに、上記凹凸あるいはシボ加工は、少なくともその何れか１つが上記ダイ ヤフラムカバー（６）またはリバウンド側ゴム（２２）の干渉面に形成されれば 、後述する両者（６），（２２）の緩衝作用は達成される。On the other hand, the structure of the diaphragm cover (6) and the rebound side rubber (22) provided on the upper part of the inner cylinder (2), which are essential parts of the present invention, are as shown in FIGS. In this embodiment, four ridges (23) ... (23) are provided on the interference surface of the rebound side rubber (22), and the surface of them is textured (24). The ridge (23) has a hemispherical cross section, and the two central ridges have a diameter larger than those of the two ridges on both sides so that they can be brought into contact with the diaphragm cover (6) in a stepwise manner. Further, as shown in FIG. 4, for example, as shown in FIG. 4, the interference surface of the diaphragm cover (6) and the rubber (22) on the rebound side has a structure in which a plurality of ridges (23) are provided on the interference surface of the diaphragm cover (6) and The rubber (22) has a textured surface (24) on the interference surface, and as shown in FIG. 5, the diaphragm cover (6) has a plurality of concave grooves (25) on the interference surface. Similarly, those subjected to the embossing (24) are suitable, and projections or recesses may be formed instead of the projections or the grooves. Further, the unevenness or the embossing, if at least any one of them is formed on the interference surface of the diaphragm cover (6) or the rebound side rubber (22), a cushioning action of both (6) and (22) described later. Is achieved.
【００１８】 以上の構成を有する本考案実施例の防振マウントは、エンジンマウントとして 使用した際のエンジンからの振動が伝わると、ゴム弾性体も併せ振動して内部の 上下液室（７），（８）間に容積変化を生じ液体がオリフィス（１２），（１３ ）を可逆的に流通し、これによって、液体の粘性により低周波数振動領域では高 い振動減衰特性を発揮し、他方、高周波数振動領域では液体流動は入力振動と同 期し難くなって液自体が共振し、低い動的バネ定数により振動伝達率を下げて車 室内での振動、騒音の低減を行わしめる。 そして、本考案の防振マウントは、自動車の極度な悪路走行によってマウント のダイヤフラムカバーとリバウンド側ゴムが当たるような場合でも、ダイヤフラ ムカバーあるいはリバウンド側ゴムの干渉面に設けた凹凸により、両者の衝突時 の衝撃を緩和することが可能であり、これによって悪路走行時に従来生じた異音 や振動を、マウントの初期使用時おいても解消することができる。 以上、本考案の実施例について説明したが、リバウンド側ゴムのシボ加工は、 ダイヤフラムカバーの干渉面、あるいはそれ以上の範囲に亘って施すことが望ま しい。When the vibration from the engine when used as an engine mount is transmitted, the vibration-damping mount of the embodiment of the present invention having the above-mentioned configuration also vibrates with the rubber elastic body, and the upper and lower liquid chambers (7), A volume change occurs between (8) and the liquid reversibly flows through the orifices (12) and (13), which causes high vibration damping characteristics in the low frequency vibration region due to the viscosity of the liquid, while In the frequency vibration region, the liquid flow becomes difficult to synchronize with the input vibration, and the liquid itself resonates, and the low dynamic spring constant reduces the vibration transmissibility to reduce vibration and noise in the passenger compartment. The anti-vibration mount of the present invention, even when the diaphragm cover of the mount and the rubber on the rebound side contact with each other due to the vehicle traveling on an extremely rough road, due to the unevenness provided on the interference surface of the diaphragm cover or the rebound side rubber, It is possible to mitigate the impact at the time of a collision, and by doing so, it is possible to eliminate the noise and vibration that were conventionally generated when driving on rough roads even during the initial use of the mount. Although the embodiments of the present invention have been described above, it is desired that the rebound rubber be subjected to the embossing over the interference surface of the diaphragm cover or over the range.
【００１９】[0019]
以上説明したように、本考案の円筒型液封入防振マウントは、内筒と外筒の間 に張設したダイヤフラムを保護するダイヤフラムカバーと、内筒の上記ダイヤフ ラムカバー側に設けたリバウンド側ゴムの少なくとも一方の干渉面を凹凸に形成 したものであり、自動車の極度な悪路走行によってマウントのダイヤフラムカバ ーとリバウンド側ゴムが当接するような場合でも、ダイヤフラムカバーあるいは リバウンド側ゴムの干渉面に設けた凹凸により、両者の衝突時の衝撃を緩和する ことが可能であり、これによって悪路走行時に従来生じた異音や振動を、マウン トの初期使用時おいても解消しうるとの顕著な効果を奏するものである。 As described above, the cylindrical liquid-filled anti-vibration mount of the present invention includes a diaphragm cover that protects the diaphragm stretched between the inner cylinder and the outer cylinder, and a rebound-side rubber provided on the diaphragm cover side of the inner cylinder. Even if the diaphragm cover of the mount and the rubber on the rebound side come into contact with each other due to the vehicle traveling on an extremely rough road, the interference surface of the diaphragm cover or the rebound side rubber The unevenness provided makes it possible to mitigate the impact at the time of collision between the two, and it is possible to eliminate the abnormal noise and vibration that were conventionally generated when driving on rough roads even during the initial use of the mount. It has a great effect.
【図１】本考案実施例の防振マウントを示す中央縦断面
図である。FIG. 1 is a central longitudinal sectional view showing a vibration-proof mount according to an embodiment of the present invention.
【図２】図１のＡ−Ａ線断面図である。FIG. 2 is a sectional view taken along the line AA of FIG.
【図３】図１における上下のオリフィス部材を示し、
（イ），（ハ）は斜視図、（ロ）は嵌着態様を示す斜視
概略図、（ニ），（ホ）は両端部の各衝合わせ態様を示
す正面図である。FIG. 3 shows the upper and lower orifice members in FIG.
(A) and (C) are perspective views, (B) is a schematic perspective view showing a fitting mode, and (D) and (E) are front views showing respective abutting modes of both ends.
【図４】本考案の他の実施例マウントを示す中央縦断面
図である。FIG. 4 is a central longitudinal sectional view showing a mount according to another embodiment of the present invention.
【図５】本考案のさらにまた他の実施例マウントを示す
中央縦断面図である。FIG. 5 is a central longitudinal sectional view showing a mount according to still another embodiment of the present invention.
【図６】従来のマウントの中央縦断面図である。FIG. 6 is a central longitudinal sectional view of a conventional mount.
【図７】図６のＡ−Ａ線断面図である。7 is a cross-sectional view taken along the line AA of FIG.
【図８】図６に示すマウントの分解斜視図である。FIG. 8 is an exploded perspective view of the mount shown in FIG.
（１） 第１外筒 （１´） 第２外筒 （２） 内筒 （３） ゴム弾性体 （４） ダイヤフラム （５） オリフィス部材 （６） ダイヤフラムカバー （７） 上側液室 （８） 下側液室 （９） リブ （１０） 横連結ゴム （１１） 縦連結ゴム （１２）（１３） オリフィス （１４） シールゴム （１５）（１５´）弾性体 （１６） 両端部 （１７）（１７´）遮断壁 （１８） Ｕターン路 （２０） 通孔 （２２） リバウンド側ゴム （２３） 凸条 （２４） シボ加工 （２５） 凹溝 (1) First outer cylinder (1 ') Second outer cylinder (2) Inner cylinder (3) Rubber elastic body (4) Diaphragm (5) Orifice member (6) Diaphragm cover (7) Upper liquid chamber (8) Lower Side liquid chamber (9) Rib (10) Horizontal connection rubber (11) Vertical connection rubber (12) (13) Orifice (14) Seal rubber (15) (15 ') Elastic body (16) Both ends (17) (17') ) Blocking wall (18) U-turn path (20) Through hole (22) Rebound rubber (23) Convex ridge (24) Textured (25) Recessed groove
───────────────────────────────────────────────────── フロントページの続き (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 高島 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 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiichi Hamate, Miyoshi-cho, Nishikamo-gun, Aichi No. 3 Ichigayama, Uchikoshi, Toyo Tire & Rubber Co., Ltd. Automotive Parts Technology Center (72) Yukio Takashima Nishikamo-gun, Aichi Prefecture Miyoshi-cho, Uchikoshi, Ikagayama No.3 Toyo Tire & Rubber Co., Ltd. Automotive Parts Technology Center
Claims (1)
囲む外筒と、これら内外筒間に介装させたゴム弾性体に
より該内外筒間に内筒を挟み上下に夫々設けられた液室
と、外筒の内周に沿い該両液室を連通させるオリフィス
流路とを備えると共に、少なくとも一方の液室の内筒側
に、ゴム膜からなるダイヤフラムを介して空気室を設け
た円筒型液封入防振マウントにおいて、上記ダイヤフラ
ムと内筒との間に該ダイヤフラムを保護するダイヤフラ
ムカバーを両者間に間隙を存して介設すると共に、上記
内筒のダイヤフラムカバー側にリバウンド側ゴムを設
け、これらダイヤフラムカバーならびにリバウンド側ゴ
ムの少なくとも一方の干渉面を凹凸に形成したことを特
徴とする円筒型液封入防振マウント。1. A laterally installed inner cylinder, an outer cylinder surrounding the inner cylinder in an axially parallel manner, and a rubber elastic body interposed between the inner and outer cylinders to sandwich the inner cylinder between the inner and outer cylinders and to provide the inner cylinder above and below, respectively. A liquid chamber and an orifice flow path that connects the two liquid chambers to each other along the inner circumference of the outer cylinder, and an air chamber is provided on the inner cylinder side of at least one of the liquid chambers via a diaphragm made of a rubber film. In the provided cylindrical liquid-filled anti-vibration mount, a diaphragm cover that protects the diaphragm is provided between the diaphragm and the inner cylinder with a gap therebetween, and rebounds to the diaphragm cover side of the inner cylinder. A cylindrical liquid-filled anti-vibration mount characterized in that a side rubber is provided and at least one of the diaphragm cover and the rebound side rubber has an uneven interference surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8892391U JPH0530584U (en) | 1991-10-02 | 1991-10-02 | Cylindrical liquid-filled anti-vibration mount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8892391U JPH0530584U (en) | 1991-10-02 | 1991-10-02 | Cylindrical liquid-filled anti-vibration mount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0530584U true JPH0530584U (en) | 1993-04-23 |
Family
ID=13956440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8892391U Pending JPH0530584U (en) | 1991-10-02 | 1991-10-02 | Cylindrical liquid-filled anti-vibration mount |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0530584U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007162907A (en) * | 2005-12-16 | 2007-06-28 | Tokai Rubber Ind Ltd | Vibrationproof rubber device |
| JP2008151189A (en) * | 2006-12-14 | 2008-07-03 | Toyo Tire & Rubber Co Ltd | Liquid filled vibration isolator |
| JP2009014108A (en) * | 2007-07-04 | 2009-01-22 | Tokai Rubber Ind Ltd | Pneumatic actuator for use in vibration damping device and fluid-filled vibration damping device using it |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04165140A (en) * | 1990-10-30 | 1992-06-10 | Toyoda Gosei Co Ltd | Liquid-in-vibration proofing device |
| JPH04296235A (en) * | 1991-03-26 | 1992-10-20 | Bridgestone Corp | Vibration isolator |
| JP3105743B2 (en) * | 1994-08-26 | 2000-11-06 | 株式会社東海理化電機製作所 | Child seat |
-
1991
- 1991-10-02 JP JP8892391U patent/JPH0530584U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04165140A (en) * | 1990-10-30 | 1992-06-10 | Toyoda Gosei Co Ltd | Liquid-in-vibration proofing device |
| JPH04296235A (en) * | 1991-03-26 | 1992-10-20 | Bridgestone Corp | Vibration isolator |
| JP3105743B2 (en) * | 1994-08-26 | 2000-11-06 | 株式会社東海理化電機製作所 | Child seat |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007162907A (en) * | 2005-12-16 | 2007-06-28 | Tokai Rubber Ind Ltd | Vibrationproof rubber device |
| JP4505748B2 (en) * | 2005-12-16 | 2010-07-21 | 東海ゴム工業株式会社 | Anti-vibration rubber device |
| JP2008151189A (en) * | 2006-12-14 | 2008-07-03 | Toyo Tire & Rubber Co Ltd | Liquid filled vibration isolator |
| JP2009014108A (en) * | 2007-07-04 | 2009-01-22 | Tokai Rubber Ind Ltd | Pneumatic actuator for use in vibration damping device and fluid-filled vibration damping device using it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19970218 |