JPH01109633U

JPH01109633U -

Info

Publication number: JPH01109633U
Application number: JP495388U
Authority: JP
Priority date: 1988-01-19
Filing date: 1988-01-19
Publication date: 1989-07-25
Anticipated expiration: 2003-01-19
Also published as: JPH0643556Y2

Description

[Brief explanation of the drawing]

第１図は本考案に従う構造とされた流体封入式
円筒型マウントの一実施例たるエンジンマウント
を示す横断面図であり、第２図は第１図における
―断面図であり、第３図はかかるエンジンマ
ウントを構成する一体加硫成形品を示す横断面図
であり、第４図は第３図における―断面図で
あり、第５図は第３図における―断面図であ
る。１０：内筒金具、１２：外筒金具、１４：ゴム
弾性体、１６：スリーブ半割体、１８，２０：肉
抜部、２２：切欠部、２６：第一のポケツト部、
３０：第二のポケツト部、３２：薄肉部、３６：
第一の窓部、３８：第二の窓部、４２：第一の流
体室（受圧室）、４４：第二の流体室（平衡室）
、４６：オリフイス通路。 FIG. 1 is a cross-sectional view showing an engine mount which is an embodiment of a fluid-filled cylindrical mount structured according to the present invention, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. FIG. 4 is a sectional view taken in FIG. 3, and FIG. 5 is a sectional view taken in FIG. 3. FIG. 10: Inner cylinder metal fitting, 12: Outer cylinder metal fitting, 14: Rubber elastic body, 16: Sleeve half body, 18, 20: Lightening part, 22: Notch part, 26: First pocket part,
30: Second pocket part, 32: Thin wall part, 36:
First window, 38: Second window, 42: First fluid chamber (pressure receiving chamber), 44: Second fluid chamber (equilibrium chamber)
, 46: Orifice passage.

Claims

[Claims for Utility Model Registration] (1) An inner cylindrical fitting and a rigid sleeve disposed concentrically or eccentrically outwardly in the radial direction of the inner cylindrical fitting are connected by a rubber elastic body, and the rubber A plurality of pockets are formed in the elastic body and are opened through windows provided in the rigid sleeve, and the walls of some of the pockets are made thinner so that they can be displaced. By inserting the outer cylindrical metal fittings into the pockets and closing the openings of the plurality of pockets, pressure receiving chambers each filled with a predetermined incompressible fluid into which vibrations to be damped are input, and at least a portion thereof are sealed. and a variable volume equilibrium chamber defined by the thinned wall portion, and the pressure receiving chamber and the equilibrium chamber are communicated with each other through an orifice passage. The rigid sleeve is configured with a pair of semi-cylindrical half bodies that are divided in the axial direction at a portion where the window portion is not located, and both circumferential side edge portions of each half body are opposed to each other with a predetermined distance apart. While connecting with the rubber elastic body under the condition,
A cutout portion having a predetermined depth that extends over the entire length in the axial direction without communicating with the pocket portion is formed in the rubber elastic body located between the opposing surfaces of the circumferential end edges of the pair of half bodies. 1. A fluid-filled cylindrical mount characterized in that the rubber elastic body is compressed in the radial direction of the mount when the outer cylindrical fitting is inserted. (2) With respect to a hollowed out portion formed by the notch passing through the rubber elastic body in the mount axis direction,
The fluid-filled cylindrical mount according to claim (1), wherein the fluid-filled cylindrical mount is in communication with each other. (3) A hollow portion is formed that is located inside in the radial direction of the mount of some of the plurality of pocket portions and penetrates through the rubber elastic body in the axial direction of the mount. 3. The fluid-filled cylindrical mount according to claim 1, wherein a bottom wall of the cylindrical mount is configured as the thinned wall.