Side lock for a roll-up door

Details Side lock for a roll-up door Side lock for a roll-up door

1990-08-17

1991-06-11

Wolfe, Robert L.

Closure fasteners

Bolts

Hooked end

29234113, 292DIG36, E05C 1910

Patent

active

050226916

ABSTRACT:
A side lock (20) for a roll-up door (21) mounted on a body includes a keeper (27) mounted on a jamb (23) adjacent an access opening (22). A hook member (28) is pivotally mounted on a panel (25) and is arranged to selectively engage a catch (59) mounted on the keeper. The hook member has an upper cam surface (76) and a concave surface (78). The hook member also has a lower cam surface (75) which is adapted to selectively engage the catch when the door is lowered to selectively displace the hook member against the opposing bias of a spring (91) to permit the tip (66) of the hook member to pass beneath the catch. The improved side lock is self-tightening.

REFERENCES:
patent: 1908165 (1933-05-01), Moler
patent: 3642314 (1972-02-01), Smith
patent: 3740978 (1973-06-01), Smith
patent: 3838877 (1974-10-01), Hansa
patent: 3958822 (1976-05-01), Germer

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