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Title:
Slide fastener with separable end members
Abstract:
A slide fastener with separable end stop members including an insertion member and a reception member each associated with a respective row of coupling elements on a stringer half. The members have complementary offset steps orthogonal to the slide fastener plane to prevent relative displacement of these members when they are interfitted in a direction perpendicular to the slide fastener plane and are mutually engageable. A slider of generally Y-shaped channel configuration can be displaced upon the rows of coupling elements to interconnect and disconnect them. The slider has arcuate slider flanks receiving the insertion and reception members between them and these members have arcuate surfaces corresponding to the curvature of these flanks and engageable therewith. An abutment is provided to enable the coupling element to be drawn over one of these members, namely, the reception member, in a unidirectional manner and preventing withdrawal of the slider in the opposite direction. The insertion member is shaped so that it can be fitted into the reception member when the slider is disposed over the latter.
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Inventors:
Heimberger, Helmut (Locarno, CH)
Application Number:
804147
Filing Date: 1977-06-06 Publication_date: 1979-05-08 Assignee:
Optilon W. Erich Heilmann GmbH (Cham, CH)
Primary Class(es):
24/434
Other Classes:
US Patent Ref:
Other Refs:
739| Feb, 1936 | AU | | 480519Jan, 1952 | CA | | 2341351Mar, 1975 | DE | | 1092449Apr, 1955 | FR | | 47820Aug, 1969 | DD | | 542748May, 1956 | IT | | | | | | | |
Primary Examiner:
Gelak, Bernard A.
Assistant Examiner:
Attorney:
Ross; Karl F.
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