| 摘要 |
PROBLEM TO BE SOLVED: To improve a moldability and ensure adequate sealing characteristics in a joint boot made of a resin attached to a constant velocity joint having an outer case with a non-circular outer peripheral form like a tri-port constant velocity joint. SOLUTION: In the joint boot 10 made of the resin, a large diameter side attaching part 14 attached to the outer case 6 has a circular form in its outer periphery. In an inner periphery, a plurality of parts in the circumferential direction protrude inward correspondingly to a plurality of recessed parts 6b of the outer case 6. Each of the protruding parts 14b includes an inner wall 22 protruding inward with a substantially prescribed thickness in the circumference direction, an arcuate shaped outer wall 24 with a substantially prescribed thickness in the circumference direction and a single support wall 26 connecting both the walls at the center in the circumference directions of both the walls. COPYRIGHT: (C)2004,JPO
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