| 摘要 |
<p>A row of slide fastener coupling elements (64) of synthetic resin or meta! is pressed between a pair of first and second presser rolls (18, 24; having first and second confronting presser surfaces (34, 39) engaging legs of the coupling elements (64). The first and second presser surfaces (34, 39) have closest confronting portions spaced from each other by a distance (W) equal to the width of each of the coupling elements (64). The second presser roll (24) is displaceable with respect to the first presser roll (18) to vary the distance (W). The first presser roll (18) has a spur gear (35) held in mesh with a pin gear (41) on the second presser roll (24). The first and second presser rolls (18,24) can be rotated in synchronism by the spur gear (35) and the pin gear (41) even when the second presser roll (24) is displaced relatively to the first presser roll (18). The first and second presser rolls (18, 24) also have partition ridges (47, 48) for meshing engagement with the legs to keep them spaced apart at equal intervals. One of the first and second presser rolls (18, 24) has a third presser surface (50) for engagement with coupling heads (78). Another presser roll (51) has a fourth presser surface (53) in confronting relation to the third presser surface (50) for pressing the coupling elements (64) toward the third presser surface (50).</p> |
