Key operated lock

Details Key operated lock Key operated lock

1982-01-28

1983-10-18

Wolfe, Robert L.

Locks

Portable

Padlocks

E05B 6736

Patent

active

044098057

ABSTRACT:
A key operated lock comprises, a lock body; a retractable lock bar with a bevel head, operable by an external pressure, disposed in the body; two locking plates abutted one another in the body and biassed by two separate springs parallelly and opposite to one another, each of the locking plates having an opening adjacent to one another, the openings jointly forming a throughhole for gripping the bevel head to place the lock in its locking position. The throughhole which is in its releasing position is a full circular shape that can allow the bevel head to pass therethrough and is of the shape formed of two dislocated semicircles in its gripping position. The release means for the retractable lock bar includes two cam members which will move, by key operation, the locking plates against the biassing action of the springs to make the throughhole vary to its releasing position so that the lock bar will be released.

REFERENCES:
patent: 1592696 (1926-07-01), Heyer
patent: 2660872 (1953-12-01), Beach
patent: 4236395 (1980-12-01), Avaiusini
patent: 4269048 (1981-05-01), McDorman

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