| 摘要 |
<p>A slide slidably mounted on an arm secured to an indexing plate has a slider seat for supporting thereon a slider body with its pull tab inserted in a slot defined between the slide and the arm. The slider pull tab is immovably held in the slot by a ball mounted in the arm and spring-biased into an aperture in the pull tab. Upon holding of the pull tab, the slide is slightly moved under the resiliency of a spring to lift the slider body until a locking pawl to which the pull tab is connected is withdrawn out of a slider guide channel. A block mounted on a fixed frame contains a spring-biased presser which, upon lateral alignment with the spring-biased ball, forces the ball into locking engagement with the pull tab in the slot, thereby locking the slider for application to a pair of slide fastener stringers.</p> |
