Mechanism of electronic door lock

Details Mechanism of electronic door lock Mechanism of electronic door lock

2008-04-07

2009-06-09

Gall, Lloyd A (Department: 3673)

Locks

Special application

For closures

C070S149000, C070S189000, C070S218000, C070S223000, C070S224000, C070S277000, C070S278700, C292S142000, C292S144000, C292SDIG027

Reexamination Certificate

active

07543469

ABSTRACT:
An electronic lock includes a mechanism comprising a drive assembly comprising a pinion, a gearwheel including a peripheral flange having openings with a curved edge; a clutch comprising a ring including risers in the openings to engage with the curved edges, a first sleeve in the ring and including a rear projection, a driven member including a groove disengaged from the corresponding projection when the lock is locked, and a first spindle, and a spring put on the first sleeve and urged against the driven member; a second sleeve securely urged against the first sleeve; and a second spindle securely passing the second sleeve into the first sleeve. Turning the pinion will turn the gearwheel, push the risers rearward by sliding along the curved edges, move the ring rearward to fit the projection into the groove, and compress the spring such that turning an outer handle will unlock the lock.

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