JPS6427549U

JPS6427549U -

Info

Publication number: JPS6427549U
Application number: JP12301787U
Authority: JP
Priority date: 1987-08-11
Filing date: 1987-08-11
Publication date: 1989-02-16
Also published as: JPH0349315Y2

Description

[Brief explanation of drawings]

第１図は本考案の一実施例たるエンジンマウン
トを示す縦断面図であり、第２図は第１図におけ
る―断面図であり、第３図は第１図における
右側面図であり、第４図はかかるエンジンマウン
トにおけるゴム弾性体の一体加硫成形品を示す、
第１図に対応する図であり、第５図は第４図にお
ける―断面図であり、第６図は第５図におけ
る―断面図であり、第７図はかかるエンジン
マウントに用いられるオリフイス半割体を示す平
面図であり、第８図は第２図におけるＡ―Ａ矢視
拡大図である。また、第９図乃至第１１図は、そ
れぞれ、本考案に従う構造とされたエンジンマウ
ントの別の実施例を示す、第２図に対応する横断
面図である。１０：内筒金具、１２：外筒金具、１４：ゴム
弾性体、３６：受圧室、３８：平衡室、４２：シ
ールゴム、４４：オリフイス通路、４６：ストツ
パブロツク、５４：傘プレート、５８：狭窄部、
６８：連通窓、７０：切欠窓、７４：仕切部材、
８４：可動板、８６：通孔、８８：連通孔、９０
：ブラインドリベツト、９２，９４：弾性薄膜。 FIG. 1 is a longitudinal cross-sectional view showing an engine mount as an embodiment of the present invention, FIG. 2 is a cross-sectional view in FIG. 1, FIG. 3 is a right side view in FIG. 1, and FIG. Figure 4 shows an integrally vulcanized product of rubber elastic body in such an engine mount.
1, FIG. 5 is a sectional view of FIG. 4, FIG. 6 is a sectional view of FIG. 5, and FIG. 7 is an orifice half used in such an engine mount. FIG. 8 is a plan view showing the split body, and FIG. 8 is an enlarged view taken along the line AA in FIG. 2. Further, FIGS. 9 to 11 are cross-sectional views corresponding to FIG. 2, respectively, showing other embodiments of the engine mount having a structure according to the present invention. 10: Inner cylinder metal fitting, 12: Outer cylinder metal fitting, 14: Rubber elastic body, 36: Pressure receiving chamber, 38: Equilibrium chamber, 42: Seal rubber, 44: Orifice passage, 46: Stopper block, 54: Umbrella plate, 58: Constriction part ,
68: communication window, 70: cutout window, 74: partition member,
84: Movable plate, 86: Through hole, 88: Communication hole, 90
: Blind rivet, 92, 94: Elastic thin film.

Claims

[Claims for Utility Model Registration] (1) An inner cylindrical metal fitting and an outer cylindrical metal fitting arranged concentrically or eccentrically with each other are connected by a cylindrical rubber elastic body interposed between them, A plurality of fluid chambers, which constitute a connecting body and which are filled with a predetermined incompressible fluid and communicated with each other through an orifice passage, are provided in a circumferentially divided state; At least one of the fluid chambers into which vibrations to be damped are input is provided with a constriction that is integrally attached to the inner cylindrical metal fitting or the outer cylindrical metal fitting and between the inner wall surface of the fluid chamber and the inner cylindrical metal fitting. In the fluid-filled vibration-isolating bushing, the fluid-filled vibration isolating bushing is provided with an umbrella member that forms an inner wall surface of the fluid chamber, and a movable member or is equipped with an elastic member, and the movable member or the elastic member is displaced or deformed by a predetermined amount in the radial direction of the bush, thereby absorbing the increase in liquid pressure when vibration is input in the fluid chamber. A fluid-filled anti-vibration bushing characterized by the provision of a mechanism. (2) The outer cylindrical fitting is provided with a sealable communication hole that communicates with the fluid chamber, and the communication hole removes or prevents fluid pressure in the fluid chamber under a non-loaded state. 1. A fluid-filled anti-vibration bushing according to claim 1, which is constructed so as to be able to perform the following functions.