Closure fasteners – Bolts – Swinging
Patent
1992-06-29
1993-08-10
Moore, Richard E.
Closure fasteners
Bolts
Swinging
292DIG31, 292DIG43, E05C 326
Patent
active
052342387
ABSTRACT:
A ratchet type latch assembly, which can reliably lock a closing member to a stationary frame even if the relative positions of a lockable member and a latch member are shifted. The latch member is pivoted by a pivotal pin to rear end portions of a pair of bearing arms attached to a latch case. A pawl lever is pivoted by a pivotal pin to central portions of the bearing arms. The latch member has an arcuate edge formed on the side of its pivotal pin opposite its guide projection and about its pivotal pin, the arcuate edge being formed with a train of ratchets The pawl lever has its rear end portion provided with a check pawl latch for engagement and disengagement with respect to the ratchet train. The latch lever is urged against the pawl lever by a torsion spring. An operating handle is pivoted to a front plate member of the latch case, and can be lifted manually to release the latch member from the lockable member of the stationary frame.
REFERENCES:
patent: 2243772 (1941-05-01), Peltier
patent: 2767007 (1956-10-01), Burke
patent: 3664698 (1972-05-01), Stropkay
patent: 3695659 (1972-10-01), Gionet et al.
patent: 3697105 (1972-10-01), Marx
patent: 3796076 (1974-03-01), Miyabayashi et al.
patent: 4209194 (1980-06-01), Poe
patent: 4220364 (1980-09-01), Poe
patent: 4580822 (1986-04-01), Fukumoto
Moore Richard E.
Smolowitz Martin
Takigen Manufacturing Co. Ltd.
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