Patent ID: 9581246
Date: 2017-02-28
CPC Classifications: B62K,F16F,F16J

Claim:
1. A seal member, which is formed of a metal insert and an elastic body covering the metal insert, and seals a gap between a tubular member and a shaft member axially movably inserted into the tubular member, the seal member comprising: an annular fitting part which fits on an inner circumference of the tubular member; and an annular dust lip which extends from the fitting part toward a side opposite from the tubular member, a diameter of an inner circumference of the dust lip gradually decreases, with a distal end portion of the dust lip sliding on an outer circumferential surface of the shaft member, wherein the metal insert includes a reinforcing ring and a reinforcing extension piece, the reinforcing ring standing along the inner circumference of the tubular member, and the reinforcing extension piece extending from the reinforcing ring toward a side opposite from the tubular member and inclining such that a distal end of the reinforcing extension piece approaches the shaft member, and the reinforcing ring is arranged in the fitting part, and the reinforcing extension piece is arranged in a proximal end portion of the dust lip.