초록 ▼

An electronic door lock is provided with a single control knob used for entering a predetermined combination through manipulation of the knob in a first arc of rotation, the code being entered by pushing the dial inwardly to bring a push pad into contact with individual ones of an arcuate array of e

An electronic door lock is provided with a single control knob used for entering a predetermined combination through manipulation of the knob in a first arc of rotation, the code being entered by pushing the dial inwardly to bring a push pad into contact with individual ones of an arcuate array of electrical switches provided on a printed circuit board within the lock housing, the release of the door locking bolt being accomplished after entry of the predetermined code by further manipulation of the control knob through remaining portions of knob rotation which are unavailable until after entry of the predetermined code.

대표청구항 ▼

A dial and push electronic door lock having a code entry and door bolt control knob comprising: circuit board means with a plurality of electrical contact switches disposed in a semi-circular array for receiving a predetermined coded sequence of switch actuation and to produce a code responsive elec

A dial and push electronic door lock having a code entry and door bolt control knob comprising: circuit board means with a plurality of electrical contact switches disposed in a semi-circular array for receiving a predetermined coded sequence of switch actuation and to produce a code responsive electrical signal; switch actuating means including a switch engaging pad mounted eccentrically of a center portion thereof; mounting means for mounting said switch actuating means for rotative and axial movement of said center portion; a knob connected to said switch actuating means for manually rotating said pad relative said array of switches and for manually pushing said pad against a selected one of said switches; limit means for normally limiting the arc of rotation of said switch actuating means to an arcuate rotation of only the extent of said array of switches; electrically operated means associated with said circuit board means for deactivating said limit means on receipt of a code responsive electrical signal sent by said circuit board means; door bolt connecting means for connecting said knob to said door bolt for shifting said door bolt between protracted and retracted positions relative said door in response to manipulation of said knob through an arc of rotation which is arcuately displaced from that provided for operating said switches.