Closure fasteners – Bolts – Spring arm
Patent
1981-01-23
1983-10-04
Moore, Richard E.
Closure fasteners
Bolts
Spring arm
E05C 1906
Patent
active
044075383
ABSTRACT:
A latch mechanism useful for belt buckles, door latches, etc., includes an endless member in the form of a frusto-conical or frusto-spherical band of spring-like material which can be snapped between two stable positions. In one position the rim of the band is disposed on one side of a reference plane defined by the outer rim; in the other position the inner rim is on the opposite side of that plane. An integral tongue projects from one rim of the band and is positionally slaved thereto to assume first and second orientations depending upon the band position. The band is secured to one of two members to be latched, the second member having a keeper for receiving the tongue and a portion of the band, precluding relative movement between the two members. A keeper surface abuts the distal edge of the tongue in one stable band position such that movement of the band out of the keeper is resisted by the abutting force of the surface applied longitudinally to the tongue. When the band is snapped to its second position it can be slid out of the keeper along the reference plane. Belt buckle and door latch embodiments are disclosed.
REFERENCES:
patent: 1388495 (1921-08-01), Vilandrer
patent: 1988345 (1935-01-01), Vaughn
patent: 3466076 (1969-09-01), Bishing
patent: 4165359 (1979-08-01), Thomas et al.
patent: 4284299 (1981-08-01), Kelly
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