Slider-installing system for slide-fastener manufacture
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United States of America Patent
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Jan 1, 1991
Grant Date -
N/A
app pub date -
Jul 28, 1989
filing date -
Jul 28, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of mounting a slider on a workpiece consisting of a pair of parallel and longitudinally extending tapes having confronting edges provided with interleavable coupling elements and formed by removal of sections of the elements to form longitudinally spaced gaps comprises the steps of first feeding the workpiece in a normally forward travel direction along a Z-shaped path having an upstream portion, a middle portion, and a downstream portion. Then the presence of one of the gaps is detected at the middle portion and, when such presence is detected, the workpiece is arrested at the middle portion. The one gap of the arrested workpiece is then spread and thereafter a slider is pushed transversely into the spread gap. The workpiece is then gripped in the upstream portion and pulled backward so as to pull the coupling elements through the slider pushed into the gap. Finally the slider is released to continue forward advance of the workpiece.
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