Patent ID: 11946284
Assignee: OAK SECURITY GROUP, LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A door lock comprising:
a latch driving device including an inner operating device and an outer operating device coupled with the inner operating device;
a latching device coupled with the inner operating device and the outer operating device, wherein the latching device includes a latch movable between an unlatching position and a latching position;
an outer handle operatively coupled to an outer side of the outer operating device, wherein the outer handle is pivotable to move the latch to the unlatching position;
an inner handle including a shank interlocked with the inner operating device and a lever extending from the shank, wherein the shank includes a pivotal hole extending from an end face thereof, and wherein the lever includes an outer groove in an outer surface thereof, the shank and a chamber intercommunicating with the outer groove;
a lighting device received in the chamber of the inner handle, wherein the lighting device includes a lighting element facing the outer surface and a switch controlling lighting of the lighting element;
a first lid that is transmittable to light, wherein the first lid is mounted in the outer groove, and wherein the lighting element is configured to generate light transmitting through the first lid; a thumb turn pivotably coupled with the pivotal hole of the inner handle and interlocked with the latch driving device, wherein the thumb turn includes an actuator controlling the switch to a conductive state or a non-conductive state, wherein the thumb turn is pivotable between a locking position in which the latch is not moved when the outer handle is operated and an unlocking position in which the latch is movable to the unlatching position when the outer handle is operated, wherein when the thumb turn is in the locking position, the switch is in the conductive state, and the lighting element generates light transmitting through the first lid, and wherein when the thumb turn is in the unlocking position, the switch is in the non-conductive state, and the lighting element does not generate light;
an actuator in the form of a permanent magnet, wherein the thumb turn includes a stem and a pivotal portion extending from the stem, wherein the thumb turn further includes a receptacle in the pivotal portion, wherein the actuator is securely mounted in the receptacle, wherein the switch is a reed switch, wherein when the thumb turn is in the unlocking position, the actuator is aligned with the switch, and the switch is set to the non-conductive state, and wherein when the thumb is in the locking position, the actuator is spaced from the switch in a circumferential direction about a pivotal axis defined by the pivotal hole, and the switch is set to the non-conductive state; and
a positioning member, wherein the inner handle further includes two positioning grooves in an inner periphery of the pivotal hole, wherein the thumb turn further includes a receiving hole provided in the pivotal portion and spaced from the receptacle, wherein the positioning member is received in the receiving hole and is biased to move outward of the receiving hole, wherein the thumb turn is in the unlocking position, the positioning member engages with one of the two positioning grooves, thereby positioning the thumb turn in the unlocking position, and wherein when the thumb turn is in the locking position, the positioning member engages with another of the two positioning grooves, thereby positioning the thumb turn in the locking position.