The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 1985
Filed:
May. 23, 1985
Toyoo Morita, Uozu, JP;
Yoshida Kogyo K.K., Tokyo, JP;
Abstract
A longitudinally gapped, continuous slide fastener chain with sliders slidably mounted thereon is longitudinally fed by a feed roller through an apparatus including a top stop applicator mechanism. When the slider on a pair of coupling element rows is sensed by a slider sensor, the feed roller is stopped and a chain stop lever is lowered into a gap adjacent to the coupling element rows. The feed roller is rotated again to feed the slide fastener chain again to displace the chain stop lever slightly downstream by engagement with a bottom stop attached to a following length of coupling element rows. When the slide fastener chain is stopped again, a chain deflector is lowered transversely into the path of the slide fastener chain to depress the chain so that the chain located downstream of the chain deflector is pulled back until the ends of the coupling element rows where top stops are to be applied are bought into clinching dies. After the chain deflector has been fully lowered, a main shaft is rotated through one revolution for actuating a top stop cutter to cut a pair of top stop blanks out of a flat wire bar and for lowering a curling punch to clinch top stops around the rows of coupling elements at their ends in the clinching dies. The foregoing cycle of top stop attaching operation is repeated for successively attaching top stops to the slide fastener chain.