JPH0446244U

JPH0446244U -

Info

Publication number: JPH0446244U
Application number: JP8859590U
Authority: JP
Priority date: 1990-08-24
Filing date: 1990-08-24
Publication date: 1992-04-20
Anticipated expiration: 2005-07-05
Also published as: JPH0729322Y2

Description

[Brief explanation of the drawing]

第１図は、本考案に従う構造とされた自動車用
エンジンマウントの一実施例を示す縦断面図であ
つて、第２図における−断面に相当する図で
あり、第２図は、第１図における平面図である。
また、第３図は、第１図に示されているエンジン
マウントの車両への装着状態を示す縦断面説明図
である。１０……第一の支持金具、１２……第二の支持
金具、１４……ゴム弾性体、４４……ダイヤフラ
ム、４６……仕切部材、５０……仕切金具、５２
……透孔、５４……ゴム弾性板、５６……オリフ
イス部材、５８……オリフイス通路、６０……受
圧室、６２……平衡室、６４……弾性突部、６８
……狭窄流路。 FIG. 1 is a longitudinal cross-sectional view showing an embodiment of an automobile engine mount having a structure according to the present invention, and is a view corresponding to the - section in FIG. FIG.
Moreover, FIG. 3 is a longitudinal cross-sectional explanatory view showing a state in which the engine mount shown in FIG. 1 is attached to a vehicle. DESCRIPTION OF SYMBOLS 10... First support fitting, 12... Second support fitting, 14... Rubber elastic body, 44... Diaphragm, 46... Partition member, 50... Partition fitting, 52
... Through hole, 54 ... Rubber elastic plate, 56 ... Orifice member, 58 ... Orifice passage, 60 ... Pressure receiving chamber, 62 ... Equilibrium chamber, 64 ... Elastic protrusion, 68
...Narrowed flow path.

Claims

[Claims for Utility Model Registration] A first support metal fitting and a second support metal fitting that are respectively attached to one of the members to be vibration-proof and connected, which are arranged facing each other at a predetermined distance in the vibration input direction. and a cylindrical rubber elastic body interposed between the first support metal fitting and the second support metal fitting to elastically connect the two support metal fittings to each other, and having a substantially bottomed cylindrical shape. , by having the peripheral edge of the opening supported by the second support fitting, the bottom side thereof is arranged to protrude toward the first support fitting side within the inner space of the rubber elastic body. a partition member; in the inner space of the rubber elastic body, internal pressure fluctuations are generated based on deformation of the rubber elastic body formed by the partition member on the side of the first support fitting when vibration is input; , a pressure receiving chamber sealed with a predetermined incompressible fluid, and a cylinder of the partition member by covering the opening of the partition member with a lid member, at least a portion of which is made of a flexible membrane. 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 flexible membrane, formed in the cylindrical wall of the partition member; an orifice passage that communicates the pressure receiving chamber and the equilibrium chamber with each other and allows fluid to flow between the two chambers; and an orifice passage that penetrates the bottom wall of the partition member from the pressure receiving chamber side to the equilibrium chamber side. In addition to providing a through hole, a rubber elastic plate is arranged in the area where the through hole is formed, and the outer peripheral edge of the rubber elastic plate is fixed around the through hole in the partition member to fluid-tightly close the through hole. a hydraulic pressure absorption mechanism that absorbs fluctuations in hydraulic pressure in the pressure receiving chamber based on the deformation of the rubber elastic plate; A rubber elastic plate integrally formed at the outer peripheral edge of the rubber elastic plate constituting the hydraulic pressure absorption mechanism, extending continuously in the circumferential direction and protruding laterally at a predetermined height, and meeting the inner peripheral surface of the pressure receiving chamber. A fluid-filled mount device comprising: an annular elastic protrusion forming an annular constricted flow path therebetween.