B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
26/6
B21D 53/50 (2006.01) A41H 37/06 (2006.01)
Patent
CA 1187677
ABSTRACT OF THE DISCLOSURE A method of and apparatus for detecting ends of successive fly strips connected end to end by a slide fastener chain. The successive fly strips, with their first flaps superimposed on a tape of one fastener stringer and with their second flaps superimposed on the other fastener stringer, are fed along a first straight path. The succes- sive second flaps are deflected or moved aside, as they pass a wedge-shaped plow on the first straight path, to such an extent that the individual second flap lies at a right angle with respect to the general plane of the fastener stringers. Then, the direction of movement of the successive fly strips is shifted at a turning point to a second straight path inclined with respect to the first straight path so as to provide a relatively large triangular space between an adjacent pair of the deflected second flaps temporarily when the same confronting ends arrive at the turning point. Finally, a detector senses the presence of the triangular space, which indicates the arrival of confronting ends of an adjacent pair of the fly strips.
406250
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
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