B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
26/5
B21D 53/54 (2006.01) A44B 19/58 (2006.01)
Patent
CA 1238476
ABSTRACT OF THE DISCLOSURE In a method and apparatus for forming a space section in a pair of concealed-slide-fastener stringers, with a pair of tapes gripped with interengaged coupling elements disposed at the upper side of the tapes, a pair of continuous concealed-slide-fastener stringers upwardly from the under side of the tapes by a pair of laterally spaced and vertically movable dies until head portions of a series of the interengaged coupling elements are exposed to the dies and supported thereon. A punch is then lowered to cut certain interengaged coupling elements on the raised dies. Finally, an ejector is raised through the dies to clamp the cut coupling elements against the punch and continues moving upwardly together with the punch to pull the cut coupling elements out of sewn stitches. The present invention provides method and apparatus wherein an element free space section can be formed accurately and without deforming or otherwise damaging the associated pair of tapes.
467980
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
LandOfFree
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