JPH01115032U

JPH01115032U -

Info

Publication number: JPH01115032U
Application number: JP1011888U
Authority: JP
Priority date: 1988-01-28
Filing date: 1988-01-28
Publication date: 1989-08-02
Anticipated expiration: 2003-01-28
Also published as: JPH0643557Y2

Description

[Brief explanation of the drawing]

第１図は本考案を自動車用エンジンマウントに
適用したものの一具体例を示す横断面図であり、
第２図は第１図における―断面図である。第
３図はかかるエンジンマウントを構成するゴム弾
性体の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
かかる加硫成形品に対して突出加工を施したもの
を示す、第３図に対応する横断面図であり、第６
図は第５図における―断面図である。また、
第７図はかかる本実施例におけるエンジンマウン
トの荷重―撓み特性を示すグラフである。更に、
第８図は本発明に係る別の実施例としてのエンジ
ンマウントにおいて用いられる第二のオリフイス
金具を示す断面図であり、第９図は第８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：金属スリーブ、１８：貫通空所、
３１：凹所、３６：底壁部、４２：第一の流体室
（受圧室）、４４：第二の流体室（平衡室）、４
８：ダイヤフラム、５４：オリフイス通路、６０
：変形許容空間。 FIG. 1 is a cross-sectional view showing a specific example of an automobile engine mount to which the present invention is applied.
FIG. 2 is a cross-sectional view of FIG. 1. FIG. 3 is a cross-sectional view showing a vulcanized molded product of rubber elastic material constituting such an engine mount, FIG. 4 is a cross-sectional view of the vulcanized product in FIG. FIG. 6 is a cross-sectional view corresponding to FIG.
The figure is a cross-sectional view of FIG. Also,
FIG. 7 is a graph showing the load-deflection characteristics of the engine mount in this embodiment. Furthermore,
FIG. 8 is a cross-sectional view showing a second orifice fitting used in an engine mount as another embodiment of the present invention, and FIG. 9 is a cross-sectional view taken in FIG. 8. 10: Inner cylinder metal fitting, 12: Outer cylinder metal fitting, 14: Rubber elastic body, 16: Metal sleeve, 18: Penetration space,
31: recess, 36: bottom wall, 42: first fluid chamber (pressure receiving chamber), 44: second fluid chamber (equilibrium chamber), 4
8: Diaphragm, 54: Orifice passage, 60
: Deformable space.

Claims

[Scope of Claim for Utility Model Registration] An inner cylindrical metal fitting, a metal sleeve that accommodates the inner cylindrical metal fitting and is arranged so that its axes are parallel to each other, and an intervening material between the inner cylindrical metal fitting and the metal sleeve. a rubber elastic body that elastically connects them; an outer cylindrical fitting fitted to the outer peripheral surface of the metal sleeve; and a rubber elastic body located between the inner cylindrical fitting and the metal sleeve and extending in the circumferential direction. a through space extending with a predetermined width and penetrating in the axial direction, where the rubber elastic body does not exist; Further, a pressure receiving chamber into which vibrations to be damped are input, which is formed by a pocket portion opening on the outer circumferential surface and whose opening is closed by the outer cylindrical fitting; and the through hole in the metal sleeve. A recess formed by recessing the axial center portion facing the cavity radially inward, and an opening of the recess formed in a cover member at least partially made of a flexible membrane. an equilibrium chamber whose volume can be changed by being closed by the recess, an orifice passage that allows the equilibrium chamber to communicate with the pressure receiving chamber; and an orifice passage within the pressure receiving chamber and the equilibrium chamber, respectively. a predetermined incompressible fluid sealed therein, and the bottom wall of the recess in the metal sleeve is processed so as to protrude toward the inner cylindrical fitting, and the bottom wall is connected to the inner cylindrical fitting. 1. A fluid-filled cylindrical mount, characterized in that a preliminary compression is applied to the rubber elastic body to generate a compressive force in a portion on the side where the pressure receiving chamber is formed by bringing the rubber elastic body into pressure contact with a cylindrical metal fitting.