Title: Lock slider for slide fasteners

Abstract: A pull tab pivotally connected to a slider body is formed integral with a locking pawl which projects into the guide channel in the slider body through an aperture formed in its top wing. When the pull tab is turned to a recumbent position on the slider body, the locking pawl presses the fastener elements in the guide channel against the bottom wing of the slider body thereby locking the slider against movement. The point of contact of the locking pawl with the fastener elements is located forwardly of the axis of the pivotal motion of the pull tab when the latter is in the recumbent position. Further, when the pull tab is in the recumbent position, the tip of the locking pawl rests against an abutment on the inside surface of the top wing of the slider body.

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Other info:

Inventors: Ishii, Susumu (Kurobe, JP)
Aoki, Tsunetaka (Kamiichi, JP)

Application Number: 881114
Filing Date: 1978-02-24
Publication_date: 1978-12-26
Assignee: Yoshida Kogyo K.K. (Tokyo, JP)
Primary Class(es): 24/419
Other Classes:
US Patent Ref:

2223279	Nov, 1940	Carlile	24/205.
2835011	May, 1958	Malcolm	24/205.
2968079	Jan, 1961	Brown	24/205.

Other Refs:
Primary Examiner: Gelak, Bernard A.
Assistant Examiner:
Attorney: Bucknam and Archer