| 摘要 |
<p>A slide fastener slider (1) with pulling plate (2) can be produced in a single injection-moulding operation. For this purpose, the opening underneath the clip (4) on the slider body (3), serving for securing the pulling plate (2), is modelled by four movable mould cores (37-40). The four mould cores (37-40) are moved into the mould before injection, and are drawn out of the mould again for ejecting the finished slide. Equally, it is also possible to provide a blocking lug (10), which in the state of rest protrudes into the interspace between two slide fastener elements and blocks the movement of the slide. By pulling on the pulling plate (2), the blocking lug (10) can be drawn out of this interspace and the slider released. <IMAGE></p> |
