| 摘要 |
PURPOSE:To satisfy the standards of appearance quality by heating and fusing tips of type setting legs of plastic inserted into holes of a dial main body for the type setting legs, and welding the type setting and dial main body fixedly. CONSTITUTION:The type setting legs 6a are inserted into the holes for the type setting legs 6a which are formed in the dial main body 12, and a heating rod 13 is rotated and pressed against the tip parts of the type setting legs 6a projected from the reverse surface of the dial main body 12 to heat and fuse the tips of the type setting legs 6a, thereby welding the type setting to the dial main body 12 fixedly. A recessed part 12b is formed in the holes 12a for the type setting legs on the reverse surface of the dial main body 12 and the fixation between the type setting 6 and dial main body 12 is made strong by the welding fixation with the tip parts of the type setting legs 6a made of plastic in the same shape with the recessed parts 12b. |
