Patent ID: 11952800
Assignee: SCHLAGE LOCK COMPANY LLC
Field: Civil engineering (Other fields)
Classification: CPC E  G  Y | IPC E  G

Claim 14:
15. A lock apparatus, comprising:
a manual actuator;
a motor operable to perform a first operation and a second operation;
a bolt;
a lost motion assembly, comprising:
a first component connected with the bolt and the manual actuator such that rotation of the first component between a first position and a second position moves the bolt between an extended position and a retracted position;
a second component operably connected with the motor and operable to rotate the first component between the first position and the second position, the second component including a pocket; and
a coil spring extending between the first component and a fixed structure of the lock apparatus, the coil spring axially urging the first component into the pocket of the second component in order to couple the first component with the second component;

a position sensor coupled to and moveable with the first component operable to detect the first position and the second position of the first component; and
control circuitry connected to the motor and the position sensor;
wherein the first operation comprises rotating the second component in a first rotational direction from a home position to a first rotated position, thereby driving the first component from the first position to the second position, and thereby placing the bolt in one of the extended position or the retracted position;
wherein the second operation comprises rotating the second component in a second rotational direction opposite the first rotational direction from the first rotated position to the home position in response to the control circuitry receiving an indication from the position sensor that the first component has reached the second position;
wherein the lost motion assembly is configured to maintain the first component in the second position during the second motor operation;
wherein the manual actuator is operable to rotate the first component between the first position and the second position; and
wherein the manual actuator extends through an opening of the first component, and the manual actuator is axially depressed to displace the manual actuator and the first component to compress the coil spring between the first component and the fixed structure to decouple couples the first component from the second component during operation of the manual actuator to rotate the first component between the first position and the second position so that the second component remains in the home position.