JPH0463841U

JPH0463841U -

Info

Publication number: JPH0463841U
Application number: JP10718490U
Authority: JP
Priority date: 1990-10-13
Filing date: 1990-10-13
Publication date: 1992-05-29
Anticipated expiration: 2005-07-05
Also published as: JPH0729317Y2

Description

[Brief explanation of drawings]

第１図は、本考案を自動車用エンジンマウント
に対して適用したものの一実施例を示す縦断面図
であり、第２図は、かかるエンジンマウントの別
の作動状態を示す縦断面図である。１０……第一の取付金具、１２……第二の取付
金具、１４……ゴム弾性体、３０……ダイヤフラ
ム、３２……仕切部材、３４……受圧室、３６…
…平衡室、４２……第一のオリフイス通路、４８
……第二のオリフイス通路、５４……透孔、５６
……ゴム弾性膜、６０……切換弁、６８……第一
の当接部、７０……第二の当接部、７８……空気
室、８０……コイルスプリング。 FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention applied to an engine mount for an automobile, and FIG. 2 is a longitudinal sectional view showing another operating state of the engine mount. DESCRIPTION OF SYMBOLS 10...First mounting bracket, 12...Second mounting bracket, 14...Rubber elastic body, 30...Diaphragm, 32...Partition member, 34...Pressure receiving chamber, 36...
... Equilibrium chamber, 42 ... First orifice passage, 48
...Second orifice passage, 54...Through hole, 56
...Rubber elastic membrane, 60...Switching valve, 68...First contact portion, 70...Second contact portion, 78...Air chamber, 80...Coil spring.

Claims

[Claims for Utility Model Registration] Disposed at a predetermined distance in the vibration input direction,
A first mounting member and a second mounting member respectively attached to the members to be vibration-proof connected, and interposed between the first mounting member and the second mounting member to connect both of them. a rubber elastic body that connects the mounting members to each other; a partition member that is supported by the second mounting member and is arranged to extend in a direction substantially perpendicular to the vibration input direction; A wall is formed on the side where the first mounting member is located, and a part of the wall is made of the rubber elastic body, and a predetermined incompressible fluid is contained in the room, causing internal pressure fluctuations when vibration is input. a pressure-receiving chamber in which a pressure-receiving chamber is enclosed; an equilibrium chamber in which a predetermined incompressible fluid is sealed, the volume of which is allowed to change based on the deformation of the membrane; and an equilibrium chamber provided between the pressure receiving chamber and the equilibrium chamber; a first orifice passage that allows the flow of fluid; and a cross-sectional area larger than the first orifice passage;
a second orifice passage provided between the pressure receiving chamber and the equilibrium chamber with a length ratio that allows fluid to flow between the two chambers; a through hole provided between the pressure receiving chamber and the equilibrium chamber with a larger cross-sectional area/length ratio; a movable member which is arranged to be displaceable and allows substantial fluid flow between the pressure receiving chamber and the equilibrium chamber through the through hole based on the deformation or displacement; a first abutting portion that closes the second orifice passage by abutting against the opening of the orifice passage; and a first abutting portion that abuts against the opening of the through hole or the movable member; a valve body that integrally has a second contact portion that substantially closes the through hole; and a valve body that drives the valve body to connect the first contact portion and the second contact portion of the valve body. by selectively bringing the part into contact with the opening of the second orifice passage and the opening of the through hole, or the movable member, thereby alternatively contacting the second orifice passage and the through hole. A fluid-filled mounting device comprising: a driving means for closing the device.