JP2010249159A - Liquid-sealed vibration isolating device - Google Patents

Liquid-sealed vibration isolating device Download PDF

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JP2010249159A
JP2010249159A JP2009096318A JP2009096318A JP2010249159A JP 2010249159 A JP2010249159 A JP 2010249159A JP 2009096318 A JP2009096318 A JP 2009096318A JP 2009096318 A JP2009096318 A JP 2009096318A JP 2010249159 A JP2010249159 A JP 2010249159A
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liquid
vibration isolator
liquid chamber
membrane
flow path
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JP5275884B2 (en
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Katsumi Someya
勝己 染谷
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Bridgestone Corp
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Bridgestone Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid-sealed vibration isolating device not interfering with a body and allowing downsizing of an engine compartment. <P>SOLUTION: The base 5a of a membrane member 5 is bonded and fixed to the inner circumferential face 8a of a flow passage 8. By this structure, the diameter D2 of the lower part can be reduced in the liquid-sealed vibration isolating device 10 wherein the center axis C is brought close to a body interference line L, and displacement of the liquid-sealed vibration isolating device 10 to the upper part is not needed. When the relation between the center axis C and the body interference line L is fixed, the height H2 from a reference line G to the center member upper end can be reduced to be lower than H1, and consequently, the liquid-sealed vibration isolating device can be housed efficiently even in the engine compartment with limits of the shape. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、中心部材と、この中心部材の半径方向外側に配置された筒状部材と、これらの部材の間に配設されこれらの部材同士を連結するゴム部材と、前記中心部材の先端の軸方向外側において前記筒状部材の半径方向内側に固定された仕切り部材と、仕切り部材の前記中心部材側と反対の側に配置された膜部材と、前記ゴム部材、筒状部材および仕切り部材によって囲まれ前記中心部材および筒状部材の相対変位に伴うゴム部材の変形に応じて容積を変化させる主液室と、前記仕切り部材および前記膜部材間に形成された副液室と、前記筒状部材の内側において仕切り部材の外周側を周方向に延在し主液室および副液室の間で液を移動させる流路を構成する流路部と、を具えた液体封入式防振装置に関する。   The present invention includes a central member, a cylindrical member disposed radially outward of the central member, a rubber member disposed between these members and connecting the members, and a tip of the central member. A partition member fixed on the radially inner side of the cylindrical member on the outer side in the axial direction; a membrane member disposed on the side opposite to the central member side of the partition member; and the rubber member, the cylindrical member, and the partition member A main liquid chamber which is surrounded and changes its volume in accordance with deformation of the rubber member accompanying relative displacement of the central member and the cylindrical member, a secondary liquid chamber formed between the partition member and the membrane member, and the cylindrical shape A liquid-filled vibration isolator having a flow path portion that extends in the circumferential direction on the outer peripheral side of a partition member inside the member and forms a flow path for moving a liquid between a main liquid chamber and a sub liquid chamber .

従来から、車両の、例えばエンジンのような振動発生源から発生する振動の、振動受け側（この場合は車体）へ伝達される振動を抑えるため、上記のような液体封入式の防振装置が用いられていて、ゴム部材の振動吸収作用に加えて主液室の容積変化に伴う流路部での液の移動による共振作用と流路抵抗作用により、上記の振動を抑えるよう機能する。   Conventionally, in order to suppress vibration transmitted from a vibration generation source of a vehicle, such as an engine, to a vibration receiving side (in this case, a vehicle body), a liquid-sealed vibration isolator as described above has been provided. In addition to the vibration absorbing action of the rubber member, it functions to suppress the above-described vibration by the resonance action and the flow path resistance action caused by the movement of the liquid in the flow path part accompanying the volume change of the main liquid chamber.

このような液体封入式防振装置に対して、最近、エンジンルームの形状に制約があっても、効率よくその中に収めることが要求されている。図１は、上記に記載した従来の液体封入式防振装置を示す断面図であり、液体封入式防振装置９０は、中心部材９１と、この中心部材９１の半径方向外側に配置された筒状部材９２と、これらの部材９１、９２の間に配設されこれらの部材９１、９２同士を連結するゴム部材９３と、中心部材９１の先端の軸方向外側において筒状部材９２の半径方向内側に固定された仕切り部材９４と、仕切り部材９４の中心部材９１側と反対の側に配置された膜部材９５と、ゴム部材９３、筒状部材９２および仕切り部材９４によって囲まれ中心部材９１と筒状部材９２との相対変位に伴うゴム部材９３の変形に応じて容積を変化させる主液室９６と、仕切り部材９４および膜部材９５の間に形成された副液室９７と、筒状部材９２の内側において仕切り部材９４の外周側を周方向に延在し主液室９６および副液室９７の間で液を移動させる流路を構成する流路部９８とを具えて構成されている（例えば、特許文献１参照。）。   In recent years, there has been a demand for such a liquid-filled vibration isolator to be efficiently accommodated even if the shape of the engine room is limited. FIG. 1 is a cross-sectional view showing the conventional liquid-filled vibration isolator described above. A liquid-filled vibration isolator 90 includes a center member 91 and a cylinder disposed radially outside the center member 91. A cylindrical member 92, a rubber member 93 disposed between the members 91, 92 and connecting the members 91, 92, and a radially inner side of the cylindrical member 92 on the axially outer side of the distal end of the central member 91. The partition member 94 fixed to the partition member 94, the membrane member 95 disposed on the side opposite to the center member 91 side of the partition member 94, the rubber member 93, the tubular member 92, and the partition member 94 are surrounded by the center member 91 and the cylinder. A main liquid chamber 96 whose volume is changed according to deformation of the rubber member 93 accompanying relative displacement with the cylindrical member 92, a secondary liquid chamber 97 formed between the partition member 94 and the membrane member 95, and the cylindrical member 92. Partition inside The outer peripheral side of the material 94 is extended in the circumferential direction, and is configured to include a flow path portion 98 that constitutes a flow path for moving the liquid between the main liquid chamber 96 and the sub liquid chamber 97 (for example, Patent Documents). 1).

なお、以下の説明において、便宜上、仕切り部材９４から見て主液室９６側を上側、副液室９７側を下側というものとする。   In the following description, for the sake of convenience, it is assumed that the main liquid chamber 96 side is the upper side and the sub liquid chamber 97 side is the lower side when viewed from the partition member 94.

特開平１０−２５２８２８号公報JP-A-10-252828

このような従来の液体封入式防振装置９０においては、膜部材９５の基部は。筒状部材９２の内側にゴム部材９３と一体的に形成されたシール部９３ａを介して接着され、半径方向には、流路部９８の外周面近くに位置し、軸方向には流路部９８の下側に位置している。   In such a conventional liquid-filled vibration isolator 90, the base of the membrane member 95 is. The cylindrical member 92 is bonded to the inner side of the cylindrical member 92 via a seal portion 93a formed integrally with the rubber member 93, and is positioned near the outer peripheral surface of the flow path portion 98 in the radial direction and in the axial direction. It is located below 98.

このような液体封入式防振装置９０を用いてエンジン８０を支持するに際して、エンジンルームをできるだけコンパクトに設計する都合上、ボディーに接近させて液体封入式防振装置９０の中心軸を配置したいとの要求があり、具体的には、図１に示すような、ボディー干渉ラインＬを境界線としてそのエンジン側に液体封入式防振装置９０が収まるようにすることが求められている。このボディー干渉ラインＬは図示のように、上側から下側に向かって液体封入式防振装置９０の中心軸Ｃに近づくよう傾斜したラインである。   When the engine 80 is supported using such a liquid-filled vibration isolator 90, the central axis of the liquid-filled vibration isolator 90 should be arranged close to the body for the sake of convenience in designing the engine room as compact as possible. Specifically, as shown in FIG. 1, it is required that the liquid-filled vibration isolator 90 be accommodated on the engine side with the body interference line L as a boundary line. As shown in the figure, the body interference line L is a line inclined from the upper side to the lower side so as to approach the central axis C of the liquid-filled vibration isolator 90.

そして、従来の液体封入式防振装置９０にあっては、その下側部分の径がＤ１と大きいため、ボディー干渉ラインＬと干渉しないようにするには、液体封入式防振装置９０を上側にずらす必要があり、その分、基準面Ｇから中心部材上端まだの高さがＨ１とするように、エンジンを高い位置に配置せざるを得ず、結局はエンジンルームを十分に小さくできないという問題があった。   In the conventional liquid-filled vibration isolator 90, since the diameter of the lower portion thereof is as large as D1, in order not to interfere with the body interference line L, the liquid-filled vibration isolator 90 is placed on the upper side. The engine must be placed at a high position so that the height of the upper end of the central member from the reference plane G is H1, and eventually the engine room cannot be made sufficiently small. was there.

本発明は、このような問題に鑑みてなされたものであり、ボディーと干渉することなくエンジンルームを縮小させることのできる、液体封入式防振装置９０を提供することを目的とする。   The present invention has been made in view of such problems, and an object of the present invention is to provide a liquid-filled vibration isolator 90 that can reduce the engine room without interfering with the body.

＜１＞は、中心部材と、この中心部材の半径方向外側に配置された筒状部材と、これらの部材の間に配設されこれらの部材同士を連結するゴム部材と、前記中心部材の先端の軸方向外側において前記筒状部材の半径方向内側に配置された仕切り部材と、仕切り部材の前記中心部材側と反対の側に配置された膜部材と、前記ゴム部材、筒状部材および仕切り部材によって囲まれ前記中心部材および筒状部材の相対変位に伴うゴム部材の変形に応じて容積を変化させる主液室と、前記仕切り部材および前記膜部材間に形成された副液室と、前記主液室および前記副液室を連通させる流路部と、を具えた液体封入式防振装置において、前記膜部材の基部を流路部の内周面に接着して固定してなる液体封入式防振装置である。   <1> is a central member, a cylindrical member disposed on the outer side in the radial direction of the central member, a rubber member disposed between these members and connecting these members, and a tip of the central member A partition member disposed on the radially outer side of the cylindrical member on the outer side in the axial direction, a membrane member disposed on a side opposite to the central member side of the partition member, the rubber member, the cylindrical member, and the partition member A main liquid chamber that is surrounded by a central member and a volume that changes in response to deformation of the rubber member accompanying relative displacement of the tubular member, a sub liquid chamber that is formed between the partition member and the membrane member, and the main liquid chamber. In a liquid-filled vibration isolator comprising a liquid channel and a flow channel unit that communicates the sub liquid chamber, a liquid-filled type in which the base of the membrane member is bonded and fixed to the inner peripheral surface of the flow channel unit It is a vibration isolator.

＜２＞は、＜１＞において、前記膜部材を、その基部を起点にして仕切り部材から離れる方向に延びる固定部と、この固定部の先端で半径方向内側に折り返される折返し部と、折返し部の半径方向内側に延在し副液室の液量に応じて軸方向に移動する可動部とで構成し、この折返し部を、筒状部材の軸方向延在領域の外側の前記流路部より半径方向内側に配置してなる液体封入式防振装置である。   <2> in <1>, wherein the membrane member has a fixed portion extending in a direction away from the partition member with the base as a starting point, a folded portion folded back radially inward at a tip of the fixed portion, and a folded portion And a movable portion that moves in the axial direction according to the amount of liquid in the sub liquid chamber, and the folded portion is the flow path portion outside the axially extending region of the cylindrical member. This is a liquid-filled vibration isolator arranged on the inner side in the radial direction.

＜３＞は、＜１＞もしくは＜２＞において、前記流路部を前記仕切り部材と別体に形成し、前記仕切り部材は、前記膜部材の基部の内周面に接する外周面を有するよう構成されてなる液体封入式防振装置である。   <3> in <1> or <2>, wherein the flow path portion is formed separately from the partition member, and the partition member has an outer peripheral surface in contact with an inner peripheral surface of a base portion of the membrane member. This is a liquid-filled vibration isolator constructed.

＜１＞によれば、前記膜部材の基部を流路部の内周面に接着して固定したので、詳細を後述するように、中心軸がボディー干渉ラインと近くなる液体封入式防振装置の下側部分の径を小さくすることができ、これによって、液体封入式防振装置を上側にずらす必要がなくなり、このように制約のあるエンジンルーム形状であっても、効率よくその中に収めることができる。   According to <1>, since the base portion of the membrane member is bonded and fixed to the inner peripheral surface of the flow path portion, as will be described in detail later, the liquid-filled vibration damping device whose center axis is close to the body interference line The diameter of the lower part of the engine can be reduced, so that it is not necessary to shift the liquid-filled vibration isolator upward, and even in such a constrained engine room shape, it can be efficiently contained therein. be able to.

＜２＞によれば、前記膜部材を、その基部を起点にして仕切り部材から離れる方向に延びる固定部と、この固定部の先端で半径方向内側に折り返される折返し部と、折返し部の半径方向内側に延在し副液室の液量に応じて軸方向に移動する可動部とで構成し、この折返し部を、筒状部材の軸方向延在領域の外側の前記流路部より半径方向内側に配置したので、副液室に液が充満した状態や大きな加振によって副液室が急激に膨張した際においても、膜部材をボディー干渉ラインと干渉しないようにすることができる。   According to <2>, the membrane member includes a fixed portion extending in a direction away from the partition member with the base as a starting point, a folded portion that is folded back radially inward at a distal end of the fixed portion, and a radial direction of the folded portion And a movable portion that extends inward and moves in the axial direction in accordance with the amount of liquid in the auxiliary liquid chamber, and this turn-up portion is in a radial direction from the flow path portion outside the axially extending region of the cylindrical member. Since it is arranged on the inner side, it is possible to prevent the membrane member from interfering with the body interference line even when the sub liquid chamber is filled with liquid or when the sub liquid chamber expands rapidly due to large vibration.

＜３＞によれば、前記流路部を前記仕切り部材と別体に形成し、前記仕切り部材は、前記膜部材の基部の内周面に接する外周面を有するよう構成したので、膜部材の基部を確実に固定することができ、膜部材が外れるのを防止することができる。   According to <3>, since the flow path portion is formed separately from the partition member, and the partition member has an outer peripheral surface in contact with an inner peripheral surface of the base portion of the membrane member, The base can be securely fixed, and the membrane member can be prevented from coming off.

従来の液体封入式防振装置を示す断面図である。It is sectional drawing which shows the conventional liquid enclosure type vibration isolator. 本発明に係る実施形態の液体封入式防振装置を示す断面図である。It is sectional drawing which shows the liquid enclosure type vibration isolator of embodiment which concerns on this invention. 他の形態の液体封入式防振装置を示す断面図である。It is sectional drawing which shows the liquid enclosure type vibration isolator of another form.

本発明の実施形態について図に基づいて説明する。図２は実施形態の液体封入式防振装置をその中心軸を通る断面において示す断面図であり、液体封入式防振装置１０は、軸方向中心に位置する中心部材１と、この中心部材１の半径方向外側に配置された筒状部材２と、これらの部材１、２の間に配設されこれらの部材１、２同士を連結するゴム部材３と、中心部材１の先端１ａの軸方向外側において筒状部材２の半径方向内側に配置された仕切り部材４と、仕切り部材４の中心部材１側（上側）と反対の側（下側）に配置された膜部材５と、ゴム部材３、筒状部材２および仕切り部材４によって囲まれ中心部材１および筒状部材２の相対変位に伴うゴム部材３の変形に応じて容積を変化させる主液室６と、仕切り部材４および膜部材５間に形成された副液室７と、筒状部材２の内側において仕切り部材４の外周側を周方向に延在し主液室６および副液室７の間で液を移動させる流路を構成する流路部８とを具えて構成される。   Embodiments of the present invention will be described with reference to the drawings. FIG. 2 is a cross-sectional view showing the liquid-filled vibration isolator of the embodiment in a cross section passing through the central axis thereof. The liquid-filled vibration isolator 10 includes a central member 1 located at the center in the axial direction and the central member 1. A cylindrical member 2 disposed on the outer side in the radial direction, a rubber member 3 disposed between the members 1 and 2 and connecting the members 1 and 2 to each other, and an axial direction of the tip 1a of the center member 1 A partition member 4 disposed on the outside in the radial direction of the tubular member 2, a membrane member 5 disposed on the opposite side (lower side) of the central member 1 side (upper side) of the partition member 4, and a rubber member 3 The main liquid chamber 6 which is surrounded by the cylindrical member 2 and the partition member 4 and whose volume is changed according to the deformation of the rubber member 3 accompanying the relative displacement of the central member 1 and the cylindrical member 2, the partition member 4 and the membrane member 5. In the sub liquid chamber 7 formed between the inside and the cylindrical member 2 It constituted comprising a flow path portion 8 constituting the flow path for moving the liquid between the cutting member 4 of the outer circumferential side extends in the circumferential direction main liquid chamber 6 and the auxiliary liquid chamber 7.

この液体封入式防振装置１０は、その特徴として、膜部材５の基部５ａを流路部８の内周面８ａに接着して固定していて、この構成により、中心軸Ｃがボディー干渉ラインＬと近くなる液体封入式防振装置１０の下側部分の径をＤ２と小さくすることができ、図１と図２とを比べて見て分かる通り、液体封入式防振装置１０を上側にずらす必要がなくなり、中心軸Ｃとボディー干渉ラインＬとの関係を一定にしたとき、基準線Ｇからの中心部材上端までの高さを、Ｈ１より小さいＨ２とすることができ、このような制約のあるエンジンルーム形状であっても、効率よくその中に収めることができる。   The liquid-filled vibration isolator 10 is characterized in that the base portion 5a of the membrane member 5 is bonded and fixed to the inner peripheral surface 8a of the flow path portion 8, and this configuration allows the central axis C to be connected to the body interference line. The diameter of the lower part of the liquid-filled vibration isolator 10 near L can be reduced to D2, and as can be seen by comparing FIG. 1 and FIG. When the relationship between the center axis C and the body interference line L is made constant, the height from the reference line G to the upper end of the center member can be set to H2 smaller than H1. Even if the engine room has a shape, it can be efficiently housed in it.

ここで、膜部材５を、その基部５ａを起点にして仕切り部材４から離れる方向に延びる固定部１１と、この固定部１１の先端で半径方向内側に折り返される折返し部１２と、折返し部１２の半径方向内側に延在し副液室６の液量に応じて軸方向に移動する可動部１３とで構成し、この折返し部１２を、軸方向には筒状部材２の外側に、半径方向には流路部８の内側に配置するのが好ましく、この構成によって、副液室６に液が充満した状態や大きな加振によって副液室６が急激に膨張した際においても、膜部材５の固定部１１は移動せず可動部１３だけが上下に移動するだけなので、ボディー干渉ラインＬと干渉しないようにすることができる。   Here, the membrane member 5 includes a fixing portion 11 extending in a direction away from the partition member 4 with the base portion 5a as a starting point, a folding portion 12 folded back radially inward at the tip of the fixing portion 11, and a folding portion 12 The movable portion 13 extends inward in the radial direction and moves in the axial direction in accordance with the amount of the liquid in the auxiliary liquid chamber 6, and the folded portion 12 is arranged radially outside the tubular member 2 in the radial direction. In this case, the membrane member 5 is preferably disposed inside the flow path portion 8, and with this configuration, even when the auxiliary liquid chamber 6 is filled with liquid or when the auxiliary liquid chamber 6 rapidly expands due to large vibrations. Since the fixed portion 11 does not move and only the movable portion 13 moves up and down, it can be prevented from interfering with the body interference line L.

また、図示のように、流路部８を仕切り部材４と別体に形成し、仕切り部材４は、膜部材５の基部５ａの内周面５ｂに接する外周面４ａを有するよう構成するとさらに好ましく、膜部材５の基部５ａを確実に固定することができ、膜部材５が外れるのを防止することができる。   Further, as shown in the drawing, it is more preferable that the flow path portion 8 is formed separately from the partition member 4, and the partition member 4 has an outer peripheral surface 4 a in contact with the inner peripheral surface 5 b of the base portion 5 a of the membrane member 5. The base 5a of the membrane member 5 can be reliably fixed, and the membrane member 5 can be prevented from coming off.

図３は、本発明の他の実施形態の液体封入式防振装置２０を、先の実施形態と同じ機能を有する部分には同じ符号を付して示す断面図であり、液体封入式防振装置２０も、軸方向中心に位置する中心部材１と、この中心部材１の半径方向外側に配置された筒状部材２と、これらの部材１、２の間に配設されこれらの部材１、２同士を連結するゴム部材３と、中心部材１の先端１ａの軸方向外側において筒状部材２の半径方向内側に固定された仕切り部材４と、仕切り部材４の中心部材１側（上側）と反対の側（下側）に配置された膜部材５と、ゴム部材３、筒状部材２および仕切り部材４によって囲まれ中心部材１および筒状部材２の相対変位に伴うゴム部材３の変形に応じて容積を変化させる主液室６と、仕切り部材４および膜部材５間に形成された副液室７と、筒状部材２の内側において仕切り部材４の外周側を周方向に延在し主液室６および副液室７の間で液を移動させる流路を構成する流路部８とを具えて構成され、その特徴として、膜部材５の基部５ａを流路部８の内周面８ａに接着して固定されている。   FIG. 3 is a cross-sectional view showing a liquid-filled vibration isolator 20 according to another embodiment of the present invention, in which parts having the same functions as those of the previous embodiment are denoted by the same reference numerals, and the liquid-filled vibration-proof device is shown. The apparatus 20 is also arranged between the central member 1 located at the axial center, the cylindrical member 2 arranged on the radially outer side of the central member 1, and these members 1 and 2. A rubber member 3 that connects the two members, a partition member 4 fixed on the radially inner side of the tubular member 2 on the axially outer side of the tip 1a of the central member 1, and a central member 1 side (upper side) of the partition member 4; The rubber member 3 is surrounded by the membrane member 5 disposed on the opposite side (lower side), the rubber member 3, the cylindrical member 2, and the partition member 4 to deform the rubber member 3 in accordance with the relative displacement of the central member 1 and the cylindrical member 2. Between the main liquid chamber 6 that changes the volume in response to the partition member 4 and the membrane member 5 The formed secondary liquid chamber 7 and the flow path for moving the liquid between the main liquid chamber 6 and the auxiliary liquid chamber 7 extending in the circumferential direction on the outer peripheral side of the partition member 4 inside the cylindrical member 2 are configured. The flow path part 8 is comprised, and the base part 5a of the film | membrane member 5 is adhere | attached and fixed to the internal peripheral surface 8a of the flow path part 8 as the characteristic.

この実施形態の液体封入式防振装置２０は、副液室６の容積を大きくするために、仕切り部材４の中心部を流路部８の上側に位置させており、その関係で、膜部材５の基部５ａは、その内周面５ｂで仕切り部材４と接することがない点だけが先の実施形態の液体封入式防振装置１０と異なっている。   In the liquid-filled vibration isolator 20 of this embodiment, the central part of the partition member 4 is positioned above the flow path part 8 in order to increase the volume of the sub liquid chamber 6. 5 is different from the liquid-filled vibration isolator 10 of the previous embodiment only in that the inner peripheral surface 5b does not contact the partition member 4.

本発明に係る液体封入式防振装置は、自動車のエンジンマウントやボディマウントとして用いることができる。   The liquid filled type vibration damping device according to the present invention can be used as an engine mount or body mount of an automobile.

１ 中心部材
１ａ 中心部材の先端
２ 筒状部材
３ ゴム部材
４ 仕切り部材
４ａ 仕切り部材の外周面
５ 膜部材
５ａ 膜部材の基部
５ｂ 膜部材の基部の内周面
６ 主液室
７ 副液室
８ 流路部
８ａ 流路部の内周面
１０ 液体封入式防振装置
１１ 膜部材の固定部
１２ 膜部材の折返し部
１３ 膜部材の可動部
２０ 液体封入式防振装置
Ｃ 液体封入式防振装置の中心軸
Ｌ ボディー干渉ライン DESCRIPTION OF SYMBOLS 1 Center member 1a Tip of center member 2 Cylindrical member 3 Rubber member 4 Partition member 4a Outer peripheral surface of partition member 5 Membrane member 5a Base of membrane member 5b Inner peripheral surface of base of membrane member 6 Main liquid chamber 7 Sub liquid chamber 8 Channel portion 8a Inner peripheral surface of channel portion 10 Liquid-filled vibration isolator 11 Film member fixing portion 12 Membrane member folding portion 13 Film member movable portion 20 Liquid-filled vibration-proof device C Liquid-filled vibration-proof device Center axis L Body interference line

Claims (3)

中心部材と、この中心部材の半径方向外側に配置された筒状部材と、これらの部材の間に配設されこれらの部材同士を連結するゴム部材と、前記中心部材の先端の軸方向外側において前記筒状部材の半径方向内側に配置された仕切り部材と、仕切り部材の前記中心部材側と反対の側に配置された膜部材と、前記ゴム部材、筒状部材および仕切り部材によって囲まれ前記中心部材および筒状部材の相対変位に伴うゴム部材の変形に応じて容積を変化させる主液室と、前記仕切り部材および前記膜部材間に形成された副液室と、前記主液室および前記副液室を連通させる流路部と、を具えた液体封入式防振装置において、
前記膜部材の基部を流路部の内周面に接着して固定してなる液体封入式防振装置。 A central member, a cylindrical member disposed on the radially outer side of the central member, a rubber member disposed between the members and connecting the members, and an axially outer side of the tip of the central member A partition member disposed on the radially inner side of the tubular member, a membrane member disposed on a side opposite to the central member side of the partition member, and the center surrounded by the rubber member, the tubular member, and the partition member A main liquid chamber whose volume is changed according to deformation of the rubber member accompanying relative displacement of the member and the cylindrical member, a sub liquid chamber formed between the partition member and the membrane member, the main liquid chamber and the sub liquid chamber In a liquid-filled vibration isolator having a flow path section that communicates with a liquid chamber,
A liquid-filled vibration isolator formed by adhering and fixing the base of the membrane member to the inner peripheral surface of the flow path. 前記膜部材を、その基部を起点にして仕切り部材から離れる方向に延びる固定部と、この固定部の先端で半径方向内側に折り返される折返し部と、折返し部の半径方向内側に延在し副液室の液量に応じて軸方向に移動する可動部とで構成し、この折返し部を、筒状部材の軸方向延在領域の外側の前記流路部より半径方向内側に配置してなる請求項１に記載の液体封入式防振装置。   The membrane member has a fixed portion extending in a direction away from the partition member with the base as a starting point, a folded portion folded back radially inward at a tip of the fixed portion, and a secondary liquid extending inward in the radial direction of the folded portion. A movable portion that moves in the axial direction according to the amount of liquid in the chamber, and the folded portion is disposed radially inward from the flow path portion outside the axially extending region of the tubular member. Item 2. A liquid-filled vibration isolator according to Item 1. 前記流路部を前記仕切り部材と別体に形成し、前記仕切り部材は、前記膜部材の基部の内周面に接する外周面を有するよう構成されてなる請求項１もしくは２に記載の液体封入式防振装置。   3. The liquid sealing according to claim 1, wherein the flow path portion is formed separately from the partition member, and the partition member has an outer peripheral surface in contact with an inner peripheral surface of a base portion of the membrane member. Type vibration isolator.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10227328A (en) * 1997-02-14 1998-08-25 Nok Megurasutikku Kk Liquid sealed type mount and assembling method thereof
JPH10252828A (en) * 1997-03-18 1998-09-22 Tokai Rubber Ind Ltd Vibration control support device
JPH11236939A (en) * 1998-02-23 1999-08-31 Toyo Tire & Rubber Co Ltd Liquid seal type vibration control device
JP2005282662A (en) * 2004-03-29 2005-10-13 Nok Corp Liquid sealed mount
JP2006170271A (en) * 2004-12-14 2006-06-29 Nok Corp Liquid sealing type mount and its manufacturing method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10227328A (en) * 1997-02-14 1998-08-25 Nok Megurasutikku Kk Liquid sealed type mount and assembling method thereof
JPH10252828A (en) * 1997-03-18 1998-09-22 Tokai Rubber Ind Ltd Vibration control support device
JPH11236939A (en) * 1998-02-23 1999-08-31 Toyo Tire & Rubber Co Ltd Liquid seal type vibration control device
JP2005282662A (en) * 2004-03-29 2005-10-13 Nok Corp Liquid sealed mount
JP2006170271A (en) * 2004-12-14 2006-06-29 Nok Corp Liquid sealing type mount and its manufacturing method

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