B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
26/168
B23P 11/00 (2006.01) A44B 19/58 (2006.01)
Patent
CA 1247340
ABSTRACT OF THE DISCLOSURE A punch blade depresses the coupling heads of a length of successive filamentary coupling elements toward a knockout blade while sandwiching stringer tapes between upper and lower grippers. The punch blade is lowered until lower legs of the coupling elements are cut off by cutter blades. The punch blade and the knockout blade are then lifted while gripping the severed coupling elements therebetween to forcibly remove the coupling elements out of engagement with sewing thereads on the stringer tapes. The upper grippers have confronting steps for engaging the sewing threads so that the severed coupling elements can be detached reliably and smoothly from the stringer tgapes without unduly tensioning the sewing threads and stringer tapes. The punch blade may have a vertical reinforcement member attached to at least one side edge thereof and having a lower tooth projecting downwardly beyond a lower edge is pressed against the coupling elements, the lower tooth enters between adjacent coupling elements to position the coupling elements against unwanted longitudinal displacement with respect to the punch blade.
456367
Akiyama Hideki
Imai Shigeru
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
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