A - Human Necessities – 44 – B
Patent
A - Human Necessities
44
B
26/6
A44B 19/58 (2006.01)
Patent
CA 1251022
ABSTRACT OF THE DISCLOSURE In a method of and apparatus for forming element-free spaces in a continuous slide fastener chain at ends of successive fly strips sewn to the slide fastener chain having a pair of intermeshed rows of coupling elements, portions of the intermeshed rows of coupling elements to be removed are detected by a sensor assembly disposed at a fixed position spaced a first distance upstream from a gap-forming device before such portions arrive at the gap-forming device. The sensor assembly first determines whether the longitudinal extent of a space provided between the confronting ends of an adjacent pair of the fly strips is larger than a pretetermined distance, and then on the bases of the determination, controls the feeding of the chain and the operation of the gap-forming device so that the element-free spaces can be provided accurately at the ends of the respective fly strips regardless of the spacing between adjacent fly strips.
469242
Ishikawa Kiichiro
Kojima Shinichi
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
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