Drive mechanism for key operated electronic lock

Details Drive mechanism for key operated electronic lock Drive mechanism for key operated electronic lock

1985-01-22

1987-01-06

Wolfe, Robert L.

Locks

Operating mechanism

Using a powered device

70278, 70413, E05B 4700

Patent

active

046336877

ABSTRACT:
For an electronically motivated door lock there is a key carrying magnetic coding for actuating an electronically triggered release mechanism to unlock a door. Insertion of the key in the keyway initially closes a switch to energize the electronic circuit. The electronic circuit is programmed to motivate a motor driven mechanism in successive stages to move a blocking finger into and out of engagement with a notch in a rotatable disc on a cylinder plug which operates the latch bolt. The motor rotates preferably in one direction but by use of a rotating drive pin shiftable from end to end of a transverse slot, the blocking finger is moved alternately into and out of engagement with the notch in response to the successive energizations of the motor.

REFERENCES:
patent: Re26677 (1969-10-01), Russel
patent: 2929651 (1960-03-01), Friedman
patent: 3967846 (1976-07-01), Schlage
patent: 4385510 (1983-05-01), Harper
patent: 4399673 (1983-08-01), Gotanda
patent: 4414831 (1983-11-01), Perkut
patent: 4507944 (1985-04-01), Widen

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