| 摘要 |
PROBLEM TO BE SOLVED: To reliably mount a nut on a bracket part even when a plastic material is used in a bracket part. SOLUTION: Only the one surface 1A or 2A and only the two surfaces 2A of a nut 1 are exposed and the whole of the rest is inserted in a bracket part 2 during injection-molding. During molding of the bracket part 2, a compression stress by an injection pressure is exerted on a rubber 3 vulcanized during molding of the bracket part 2 to increase the fatigue characteristics of the rubber 3. Detent or/and antislip are applied on the nut 1 and a protrusion or a recessed place is formed in the outer peripheral surface of a nut as a detent or/and antislip means in the outer periphery of a nut. |
