Elastic mount and process of manufacturing the same

Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature

Patent

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Details

298972, 29417, 2671412, F16F 916, F16M 766

Patent

active

056719086

ABSTRACT:
An elastic mount comprising: an outer hollow member which is formed of an aluminum alloy and has an inner hole; an inner shaft member which extends in the inner hole of the outer member; an elastic member which is formed by vulcanization of a rubber material in the inner hole between the outer member and the inner member to elastically connect the outer and inner members to each other; the outer member having an inner circumferential surface including a plurality of recesses and a plurality of protrusions which cooperate with each other to define the inner hole and each of which continuously extends in an axial direction of the inner hole; the recesses and the protrusions being alternate with each other at a pitch of 0.5 mm to 2.0 mm in a circumferential direction of the inner hole; a top end of each of the protrusions having a height of 0.3 mm to 1.0 mm from respective bottom ends of the two recesses on both sides of, and adjacent to, each protrusion; the elastic member being directly bonded to the inner surface of the outer member by the vulcanization of the rubber material.

REFERENCES:
patent: 4998345 (1991-03-01), Funahashi et al.
patent: 5397112 (1995-03-01), Roth et al.

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