Cylinder lock provided with an exchangeable lock-cylinder

Details Cylinder lock provided with an exchangeable lock-cylinder Cylinder lock provided with an exchangeable lock-cylinder

1993-02-24

1995-06-06

Cuomo, Peter M.

Locks

Operating mechanism

Key

70495, F05B 2706

Patent

active

054211794

ABSTRACT:
A cylinder lock can be manipulated by a control key (7) and a system key (8), each of which has a system code (7a , 8a) and a side code (7b , 8b). With the aid of the control key (7), the lock-cylinder (2) of the lock can be removed from the casing (3) for replacement with another cylinder. The cylinder plug (6) is surrounded by a lock-part (5) having a latching element (5a) which is moveable through an angle of about 20.degree. between a latching and a releasing position. When replacing the lock-cylinder, the cylinder is released through the action of the side code (7b) on the control key (7) and a side-bar (20) which is manipulated by side pins (19) mounted in the plug (6). To this end, grooves (26, 25) provided respectively in the lock-cylinder (2) and the lock-part (5) for accommodation of the side-bar (20) may be provided with peripheral extensions which enable the side-bar to move idly.

REFERENCES:
patent: Re31910 (1985-06-01), Oliver
patent: 1747383 (1930-02-01), Norviel
patent: 1866342 (1932-07-01), Best
patent: 2145085 (1939-01-01), Heyer
patent: 2379862 (1945-07-01), Bush
patent: 3206958 (1965-09-01), Best
patent: 3713311 (1973-01-01), Oliver et al.
patent: 4282731 (1981-08-01), Taksony
patent: 4393673 (1983-07-01), Widen
patent: 4424693 (1984-01-01), Best et al.
patent: 4655063 (1987-04-01), Foshee et al.
patent: 4756177 (1988-07-01), Widen
patent: 4953373 (1990-09-01), Toledano

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