JPS61202738U

JPS61202738U -

Info

Publication number: JPS61202738U
Application number: JP8796785U
Authority: JP
Priority date: 1985-06-11
Filing date: 1985-06-11
Publication date: 1986-12-19
Also published as: JPH0443636Y2

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例であるブツシユ組
立体の縦断面図であつて、第２図における―
断面に相当するものであり、また第２図は第１図
に示されるブツシユの―断面図である。第３
図は、第１図に示されるブツシユに用いられる内
筒金具とゴムスリーブの一体加硫成形品の縦断面
図であつて、第４図における―断面に相当す
るものであり、第４図は第３図における―断
面図である。第５図ａおよびｃは、それぞれリン
グ状のオリフイス部材を構成するオリフイス半体
の正面図であり、第５図ｂおよびｄは、それぞれ
第５図ａおよびｃのオリフイス半体の右側面図で
ある。２：内筒金具、４：外筒金具、６：ゴムスリー
ブ、８：外側スリーブ、１０：シールゴム層、１
２，１４：ポケツト部、１６，１８：流体室、２
２：非圧縮性流体、２４：ブロツク体、２８：ゴ
ム層、３０：嵌装溝、３２，３４：オリフイス半
体、３６，３８：オリフイス溝、４０，４２：連
通孔、４４：オリフイス。 FIG. 1 is a longitudinal cross-sectional view of a bushing assembly which is an embodiment of the present invention, and shows the structure shown in FIG.
FIG. 2 is a sectional view of the bush shown in FIG. 1. Third
The figure is a longitudinal sectional view of an integrally vulcanized molded product of the inner cylinder metal fitting and the rubber sleeve used in the bushing shown in Fig. 1, and corresponds to the - section in Fig. 4. FIG. 3 is a cross-sectional view. Figures 5a and 5c are front views of the orifice halves constituting the ring-shaped orifice member, respectively, and Figures 5b and d are right side views of the orifice halves of Figures 5a and c, respectively. be. 2: Inner tube metal fitting, 4: Outer tube metal fitting, 6: Rubber sleeve, 8: Outer sleeve, 10: Seal rubber layer, 1
2, 14: Pocket part, 16, 18: Fluid chamber, 2
2: Incompressible fluid, 24: Block body, 28: Rubber layer, 30: Fitting groove, 32, 34: Orifice half body, 36, 38: Orifice groove, 40, 42: Communication hole, 44: Orifice.

Claims

[Claims for Utility Model Registration] Positioned in the circumferential direction and opening on the outer peripheral surface,
A cylindrical rubber elastic body having a plurality of independent pockets is formed concentrically and integrally on the outer peripheral surface of a predetermined inner cylindrical metal fitting by integral vulcanization molding, and the outer peripheral surface of the rubber elastic body is By inserting a predetermined outer cylindrical metal fitting into the rubber elastic body and covering the openings of the plurality of pocket portions provided in the rubber elastic body with the outer cylindrical metal fitting, independent fluid chambers are formed, and the plurality of pocket parts are covered with the outer cylindrical fitting. In a fluid-filled bushing assembly configured such that each of the fluid chambers is filled with a predetermined incompressible fluid and the incompressible fluid can mutually flow between the fluid chambers, configured,
and a ring-shaped orifice member having an outer diameter approximately equal to the outer diameter of the rubber elastic body, in which a spiral groove continuous in the circumferential direction is formed by orifice grooves provided on the outer periphery of each orifice segment. By fitting this orifice member into a circumferential fitting groove provided on the outer periphery of the rubber elastic body so as to straddle between the pocket parts, the external cylindrical fitting to be inserted is fitted. covering the helical groove of the orifice member with an inner circumferential surface of the orifice member;
A fluid-filled bushing assembly characterized in that a predetermined helical-shaped orifice is formed, and the orifice is communicated with the fluid chamber at a helical groove portion of an orifice member corresponding to the fluid chamber.