초록 ▼

A door lock, preferably operable both by a mechanical key with a key cylinder and by an electronic signal and having inside and outside handles mounted on inside and outside hollow spindles, for mounting on a door having an inside face and an outside face, has a cylindrical lock chassis with a provi

A door lock, preferably operable both by a mechanical key with a key cylinder and by an electronic signal and having inside and outside handles mounted on inside and outside hollow spindles, for mounting on a door having an inside face and an outside face, has a cylindrical lock chassis with a provision for retracting a latch bolt in response to rotation of either of the hollow spindles; a member for selectively locking the outside spindle against rotation; a reversible electric motor mounted coaxially within the inside spindle, the motor being secured against rotation but free to slide axially against resistance provided by a biasing member, and having a motor shaft extending through the cylindrical lock chassis to operably engage the member for locking the outside spindle; a power supply for the motor; and a mechanism for selectively moving the member between locked and unlocked positions.

대표청구항 ▼

[ Having described the invention, we claim:] [1.] A door lock, operable by an electronic signal and having inside and outside handles mounted on inside and outside hollow spindles, for mounting on a door having an inside face and an outside face, said door lock comprising:a cylindrical lock chassis

[ Having described the invention, we claim:] [1.] A door lock, operable by an electronic signal and having inside and outside handles mounted on inside and outside hollow spindles, for mounting on a door having an inside face and an outside face, said door lock comprising:a cylindrical lock chassis having means for retracting a latch bolt in response to rotation of either of said hollow spindles;means for locking said outside spindle against rotation;a reversible electric motor mounted coaxially within the inside spindle, said motor being secured against rotation but free to slide axially against resistance provided by a biasing means, and having a motor shaft extending through said cylindrical lock chassis to operably engage the means for locking said outside spindle; andmeans for moving the means for locking said outside spindle between unlocked and locked positions.