| 摘要 |
<p>A sliding clasp fastener (F) is disclosed which is provided with a pair of sliders (S1, S2) for opening and closing the fastener in the forward direction and in the reverse direction, respectively. The fastener has a series of discrete coupling elements (10) each having means (20, 21) for facilitating engagement of adjacent elements (10) with minimum frictional resistance when the fastener (F) is opened or closed in the reverse direction.</p> |
