| 摘要 |
<p>A series of equally spaced holes 12 are formed in a slide fastener stringer tape 10 including synthetic fiber by thrusting and melting away tape portions spaced along a marginal edge of the tape 10 on and between an ultrasonically vibrating horn 23 and an endless series of teeth 29 successively pressable against the horn 23. The stringer tape 10 is then moved away from the horn 23 so as to be cooled for thereby setting the holes 12. Thereafter, a series of coupling elements 13 are injection-molded at the same time on the stringer tape 10 over the holes 12, respectively. <IMAGE></p> |
