Patent ID: 9239091
Filing Date: 2016-01-19
CPC Classification: F16F,F16J

Claim Text:
1. A sealing device adapted to seal between a tube member and an axial member movably inserted into the tube member, the sealing device comprising: a dust seal held on an opening end part of the tube member and including an annular dust seal lip held in sliding contact with the outer peripheral surface of the axial member; a scraper arranged at an inner side of the dust seal and including an annular lip portion slidably pressed into contact with the outer peripheral surface of the axial member; a clearance formed on the outer periphery of the scraper; an oil seal held at an inner side of the scraper on the opening end part of the tube member and including an annular oil seal lip held in sliding contact with the outer peripheral surface of the axial member; and a space formed between the oil seal and the dust seal and communicating with the clearance, wherein the hardness of the lip portion is higher than that of the dust seal lip, the scraper is movable following the axial member between the dust seal and the oil seal, and the scraper is movable following the axial member from a first position where the scraper is in contact with the dust seal to a second position where the scraper is in contact with the oil seal.