| 摘要 |
<p>PROBLEM TO BE SOLVED: To well prevent generation of defective product by easily taking a measure wherein an excessive resin protrudes toward the surface of a product. SOLUTION: A stopper 38 is adjusted so as to come into contact with a movable support member 28 prior to the most approach of the movable support member 28 to a fixed support member. When a stress applying means 34 is operated under this adjustment, the movable support member 28 is elastically deformed into a circular arc shape and a second electrode 30 is tilted toward a first electrode 22 to be displaced. By this constitution, joining piece parts S1 , S1 are pressed from the outside under pressure by the contact surfaces 22a, 30a gradually narrowed toward a product surface Sa in the mutual interval therebetween and it is suitably prevented that the excessive resin by the melting of the joining surface parts of the joining piece parts S1 , S1 protrudes toward the product surface Sa. The tilting angle of the second electrode 30 is simply and easily adjusted by adjusting the position of the stopper 38.</p> |
