JPS63115646U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view (cross-sectional view in FIG. 2) showing an example of a fluid-filled cushion rubber assembly according to the present invention, and FIG. 2 is a cross-sectional view in FIG. 1. Figures 3, 4 and 5
The figures each show the shape of each integrally vulcanized adhesive member of the cushion rubber assembly of FIG. 1 before assembly, and show the first, second, and third integrally vulcanized adhesive members, respectively. FIG. 2 is a sectional view corresponding to FIG. 1; 10: Inner cylinder metal fitting, 12: Partition rubber (first rubber elastic body), 14: First orifice forming metal fitting, 1
6: First integrally vulcanized adhesive member, 28: Second orifice forming metal fitting, 30: Orifice, 32, 34
, 56, 70, 92, 94, 100: seal lip, 42: first fluid chamber, 44: second fluid chamber,
46: End fitting, 48: Second integrally vulcanized adhesive member, 50: Third integrally vulcanized adhesive member, 58: Inner annular fitting, 60: Outer annular fitting, 64: Rubber ring (second rubber elastic body), 72: plate portion, 74
: Inclined part, 76: Mounting bracket, 78: Tapered metal fitting (caulking metal fitting), 80: Rubber block (third rubber elastic body), 81: Cylindrical part, 84: Cylindrical metal fitting, 86: Plate metal fitting, 96: Tapered part, 98:
Caulking part.

Claims (1)

[Claims for Utility Model Registration] A cushion rubber device that is interposed between a predetermined shaft member and a mounting member and is designed to dampen vibrations mainly input in the axial direction of the shaft member, comprising: an inner cylindrical fitting into which the shaft member is inserted and attached; an annular first rubber elastic body that is integrally vulcanized and bonded to the outer peripheral surface of the axially intermediate portion of the inner cylindrical fitting and extends radially outward; a first integrally vulcanized adhesive member having an annular orifice forming member integrally vulcanized and adhesively bonded to the first rubber elastic body; an inner annular metal fitting; and a first integrally vulcanized adhesive member that is integrally vulcanized and adhered to the outer peripheral surface of the inner annular metal fitting. an annular second rubber elastic body; and an outer annular fitting integrally vulcanized and bonded to the outer peripheral surface of the second rubber elastic body; a second integrally vulcanized adhesive member that is fluid-tightly assembled to form a predetermined annular space between the second rubber elastic body and the first rubber elastic body; and the second integrally vulcanized adhesive member. An annular recess that is fluid-tightly disposed at the end of the inner cylindrical fitting opposite to the side on which the adhesive member is assembled, and that opens radially outward between the first rubber elastic body and the first rubber elastic body. an annular end fitting that extends in a direction perpendicular to the axis of the inner tube fitting and is attached to the mounting member; a mounting bracket having a tapered slope extending into the annular recess so as to face the end fitting at a predetermined distance; and an outside of the slope of the mounting bracket. an annular caulking metal fitting having an annular caulking part on the other end side, the one end side of which is disposed so as to face the inclined part at a predetermined distance; and the relative relationship between the inclined part of the mounting bracket and the caulking metal fitting. and a third annular rubber elastic body which is integrally vulcanized and adhered to the facing surfaces thereof and elastically connects them, and the second integrally vulcanized adhesive member is attached to the inner circumferential portion of the mounting bracket. is integrally assembled with the outer annular metal fitting to form a first fluid chamber in which the annular space between the first and second rubber elastic bodies serves as a fluid storage space, and at the caulking portion of the caulking metal fitting. A third fluid chamber is caulked and fixed to the outer peripheral edge of the end fitting to form a second fluid chamber whose fluid storage space is an annular recess between the end fitting and the first rubber elastic body. an orifice formed in the orifice forming member of the first integrally vulcanized adhesive member in a manner that allows the first and second fluid chambers to communicate with each other; a predetermined incompressible fluid sealed in each of the fluid chambers, and based on the fact that the incompressible fluids sealed in the first and second fluid chambers mutually flow through the orifice, the shaft A fluid-filled cushion rubber assembly characterized in that vibrations input in the axial direction of the member are damped.