| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust cover for ball joints free from wear and tear in which a portion of an inner circumferential lip is engaged into a space between a knuckle and a shank. SOLUTION: A dust cover for ball joints, made of a rubber-like elastic material, comprises a ball head portion of a ball stud supported inside a socket, a shank fastened and fixed to a knuckle, an one-end large-diameter aperture fixed and supported at a periphery of the socket, and an another-end small-diameter aperture supported by the shank, in which the small-diameter aperture of the dust cover consists of an inner circumferential lip that seal-contacts the periphery of the shank, a dust seal that seal-contacts the lower face of the knuckle, and a reinforcement ring that is embedded at the outer-diameter side of the inner circumferential lip of the small-diameter aperture, in which the reinforcement ring is constructed from a cylindrical portion, an inner flange that extends from an end in axial direction of the knuckle side of the cylindrical portion, and an outer flange that extends from another end in axial direction of the cylindrical portion outwardly in radial direction. COPYRIGHT: (C)2009,JPO&INPIT
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