| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin boot for a triport type joint, which is formed by integrally moulding a resin material to reduce the cost, which can be uniformly tightened and fixed to the outer circumference of an outer case of irregular form along the whole circumference, and in which assemblage performance and seal performance are favorable. SOLUTION: A large diameter side mounting part 2 to be mounted on the circumference of the outer case 21, a small diameter side mounting part 3 to be mounted on a shaft 10 on the side of a triport 13, and a bellows part 4 between both mounting parts are integrally molded with a resin material. The inner circumference of the large diameter side mounting part 2 is formed in a non-circular form corresponding to irregular form of the outer circumference of the outer case 21, forming a thick part 2a protruded inward. A volume absorbing means 7 is provided in the thick part 2a. It can be roughly equally tightened and fixed along the whole circumference to the outer circumference of the outer case. COPYRIGHT: (C)2005,JPO&NCIPI
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