| 摘要 |
PURPOSE:To achieve cost down, while the number of operational process is reduced by a method in which while other constituting parts are arranged in a metallic parts, the cylindrical parts of the metallic parts are inserted into resin parts and are caused to pass through induction magnetic field with other constituting parts, and then the resin parts are welded to the cylindrical part by induction heating. CONSTITUTION:The operational current of an induction heating device 50 needs high frequency. Then the surface of the end 22a of the cylindrical part 22 of a brake lever 20 is locally heated, and then the adjacency of through holes 23, 23 are severely heated especially, and its fusion is accelerated. When the induction heating device 50 is energized for prescribed time, the inner surface of the fitting hole 31a of the grip 31 in the grip cover 30 brought in contact with the end 22a of the cylindrical part 22 of the blake lever 20, is melted, and the resin is inserted in molten state into the through holes 23, 23, and then when it is cooled, the grip 31 of the grip cover 30 is surely fixed to the end 22a of the cylindrical part 22 in the brake lever 20. Consequently continuous and effective manufacture may be achieved without the interruption of production process. |
