Slider of slide fastener with automatic locking mechanism

Details Slider of slide fastener with automatic locking mechanism Slider of slide fastener with automatic locking mechanism

1998-01-29

1999-07-20

Brittain, James R.

Buckles, buttons, clasps, etc.

Zipper or required component thereof

Slider having specific configuration, construction,...

A44B 1930

Patent

active

059241748

ABSTRACT:
In a slider of a slide fastener with an automatic locking mechanism, the slider comprises a slider body composed of upper and lower wings joined together at their front ends by a guide post, a cover-attaching lug located on an upper surface of the upper wing near a front opening of the slider body and having a longitudinal center groove, a recess formed in the bottom of the groove so as to sink into the guide post, a pair of stepped sections at a top of the lug, and a low wall section at a front of the lug, an S-shaped leaf spring having a resilient portion to be received in the groove, a protuberant portion at an end thereof to be placed on the stepped sections, a cover having at least one ridge-like projection, a number of small projections, which are provided at a center of an inner surface thereof respectively, and bent ridges formed at front and rear corners, in which the bent ridges are received in the groove so as to engaged in the a cover-attaching lug, a pair of protuberances and an axial protuberance of the protuberant portion abut with the bent ridges and the ridge-like projection, respectively, so that a locking pawl of the leaf spring can project into or out of the slider body. Thus, the leaf spring having a strong resiliency can be stably housed in the slider.

REFERENCES:
patent: 4139928 (1979-02-01), Aoki et al.
patent: 5255418 (1993-10-01), Chen
patent: 5694667 (1997-12-01), Mizuno

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