| 摘要 |
PROBLEM TO BE SOLVED: To increase joint strength of an elastic resin part of TPU to a scheduled joint region on a metallic surface using an easy method which does not hamper productivity. SOLUTION: In the method for joining a metallic member with a TPU member, a bearing 10 and the elastic resin part 2' are joined together in one piece according to the sequence of the following processes: a first process to apply an adhesive 1 to the outer peripheral surface 1a of an outer ring 1 of the bearing 10 in order to form an adhesive layer 3' for a metal to cover the outer peripheral surface 1a from outside; a second process to apply an adhesive 2 to the adhesive layer 3' in order to form an adhesive layer 4' for a polyurethane to further cover the adhesive layer 3' from outside; a third process to set the bearing 10 in a cavity side part 21 of a mold 20 and injection-mold an elastic resin part 2' so as to allow the outer peripheral surface 1a with the half-cured adhesive layer 4' as an outermost layer to face a cavity 24; and a fourth process to heat an urethane roller U integrated with the elastic resin part 2' at a temperature equal to or below the softening temperature of the resin part 2' and thermally cure the adhesive 1 and the adhesive 2. COPYRIGHT: (C)2005,JPO&NCIPI |
