| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for welding a thermoplastic resin member which is less likely to drop off a welding flash and easy in assembling, by preventing the welding flash from arising and prominently thrusting at outer and inner peripheral surfaces of a case. <P>SOLUTION: A lid member 1 and a holding member 2 are welded together by mutually overlapping and pressing a first edge 1c of the lid member 1 and a second edge 2c of the holding member 2 after the lid member 1 is heated by a heat panel 8. Concurrently, pressing fixtures 31a and 31b for the outer peripheral surface are moved toward the direction of the arrow E by back and forth driving gears 32a and 32b to suppress an excessive thermoplastic resin protruding through the outer peripheral surface 101b from among the first and second edges 1c and 2c. Concurrently further, pressing fixtures 41a and 41b for the inner peripheral surface are moved, toward the direction G by back and forth driving gears 43a and 43b as well as toward the direction of the arrow F by up and down driving gears 42a and 42b to suppress the excessive thermoplastic resin protruding through the inner peripheral surface 101a. In this way the welding flash thrusting through outer and inner peripheral surfaces 101b and 101a of the case 101 is shaped smooth. <P>COPYRIGHT: (C)2004,JPO</p> |
