Closure fasteners – Bolts – Sliding and rotary
Patent
1997-05-15
1998-05-05
Lindsey, Rodney M.
Closure fasteners
Bolts
Sliding and rotary
292145, 292177, E05C 502
Patent
active
057464553
ABSTRACT:
In a bolt latch with a minimum number of parts, compact size, lightweight and operable by a snap action: socket 13 is fixable to stationary frame 1; latch body 3 has longitudinal groove 3a and circumferential groove 3b; latch body 3 is fixable to door 2, the groove 3b and is perpendicular to the groove 3a, communicates with and extends from a front end of the groove 3a; bolt 4 is in the latch body and is axially slidable and rotatable on its axis and engages with the socket 13 in locking operation; pin 5 is fixed to the bolt 4 and slidable slidably received in the grooves 3a, 3b; spring 6 linearly urges the bolt 4 to have its front end received in the latch body 3 and rotatably urges it to have the pin 5 received in the groove 3b; and seat 9 is fixed to the body 3 and butts against the pin 5 in an unlocking operation to prevent the bolt 4 from further moving rearward in the body 3.
REFERENCES:
patent: 901470 (1908-10-01), Rankins
patent: 1315266 (1919-09-01), Weiland
patent: 1675033 (1928-06-01), Lefkovitz et al.
patent: 2295021 (1942-09-01), Weiss
patent: 2357608 (1944-09-01), Ostrowski
patent: 3397000 (1968-08-01), Nakanishi
patent: 3626507 (1971-12-01), Hawkins
patent: 4066284 (1978-01-01), Ikemura
patent: 4744392 (1988-05-01), Tade, III et al.
patent: 5042854 (1991-08-01), Huang
patent: 5125695 (1992-06-01), Hartwell
Lindsey Rodney M.
Smolowitz Martin
Takigen Manufacturing Co. Ltd.
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