The present disclosure relates to a bi-directional overrunning clutch, electronic door locks having bi-directional overrunning clutches, and methods of using the same. In certain embodiments, the electronic door lock includes a first locking mechanism for driving an inner wheel through a first torque to rotate a rotatable shaft to operate a locking device on a door by a user from outside, a second locking mechanism for driving inner wheel through the first torque to operate the locking device from an inside, a third locking mechanism for driving an outer wheel rotatable coaxially around the rotatable shaft through a second torque to operate the locking device electronically, and the bi-directional overrunning clutch. When outer wheel rotates at second torque, inner wheel and rotatable shaft rotate along with outer wheel, and when inner wheel rotates at first torque, outer wheel does not rotate along with inner wheel and rotatable shaft.

The electronic actuator of an electronic padlock according to the invention is arranged to turn the cam piece (5) to release the latch parts (7) from a locking state and to turn the cam piece (5) to hold the latch parts (7) in the locking state. The cam piece (5) comprises a cover part (5A) and a shaft part (5B). The cover part has a central hole (12) for the shaft part. The shaft part (5B) has a shaft pin (15), which is set into the central hole (12). The shaft part also has a connecting part 19, which is arranged to be in contact with the electronic actuator 4. The cam piece further comprises a spring (9) which is between the shaft pin (15) and the cover part (5A). The spring comprises a first end (9A) and a second end (9B). The first end 9A is arranged to be in contact with the cover part 5A. The second end 9B is arranged to be in contact with the shaft part 5B. The spring is arranged to transmit turning force of the electronic actuator from the shaft pin 15 to the cover part 5A in the direction of said locking state.

Disclosed is a household appliance comprising: a door; a door lock unit equipped with a hook part which is configured to unlock and open the door by moving outward; a motor configured to generate torque by using electricity; a driving gear unit which has a rotary shaft at one end portion and is configured to rotate by receiving the torque from the motor, wherein the one end portion pushes the hook unit to the outside of the door lock unit to open the door when the driving gear unit rotates in one direction; a sensing unit configured to sense the displacement of the other end portion of the driving gear unit when the hook unit moves to the inside of the door lock unit, wherein the other end portion rotates in the opposite direction about the rotary shaft of the driving gear unit; and a control unit configured to control the operation of the motor on the basis of the displacement, sensed by the sensing unit, of the other end of the driving gear unit.

A wirelessly-controlled jamb-mounted access control system can include an in-jamb housing, a lock body at least partially inside the housing and rotatable about a first axis between locked and unlocked positions. The first axis can extend parallel to the jamb, and the lock body can include inner and outer sidewalls that define a latch cavity configured to receive a latch tongue of a door. The wirelessly-controlled j amb-mounted access control system can further include an actuator configured to control release of the lock body from the locked position in response to a control signal.

An electronic lock includes a deadbolt, a driver mechanism, a transmission mechanism and a control mechanism. The transmission mechanism includes a transmission gear that is driven by the driver mechanism to rotate, a resilient unit that is mounted to and co-rotatable with the transmission gear, and a rotary member that is operable to rotate relative to the transmission gear between a locking position and an unlocking position, and that is connected to the deadbolt. The control mechanism is connected to the rotary member, and ceases operation of the driver mechanism when detecting that the rotary member has been rotated to one of the locking and unlocking positions.

An exemplary method includes operating an access control device including a bolt, an output gear having a magnet mounted thereon, a first magnetic sensor, and a second magnetic sensor. The method generally includes selectively determining a position of the output gear via one of the first magnetic sensor or the second magnetic sensor based upon a current handedness of the access control device. With the access control device in a first handing configuration, the first magnetic sensor may be used to a first handedness first home position of the output gear. With the access control device in a second handing configuration, the second magnetic sensor may be utilized to detect a second handedness first home position of the output gear

An intelligent lock mechanism includes a retrofittable apparatus comprising a constant temperature monitor, wherein the lock apparatus can be maintained at an operating temperature by engaging the motor to keep sufficient temperature for consistent operability.

A method for detecting a handed configuration of a door includes providing an electronic lock, which includes a latch assembly that includes a bolt movable between an extended position and a retracted position and a motor that is configured to drive the bolt between the extended position and the retracted position. The latch assembly includes a control circuit for controlling the motor to selectively move the bolt, at least one sensor in electrical communication with the control circuit, and at least one orientation indicator. The method includes detecting the presence of the at least one the orientation indicator and identifying a handed configuration based on the detection by the at least one sensor. The method includes driving, by the control circuit, the motor based on the identified handed configuration. The control circuit identifies the handed configuration without moving the bolt between the extended position and the retracted position.

A method for operating a combination lock including a body and a shackle. A keybox is located in the body and includes a cover. The body includes a first control panel, a second control panel and a switch button. The method includes a step of setting a first combination to the first control panel, a second combination to the second control panel. A step of switching the switch button to the first position so that the shackle is operated and the cover is opened relative to the keybox by inputting the first combination or the second combination from the first control panel. When the switch button is switched to the second position, the shackle is operated and the cover is opened relative to the keybox by inputting the first combination or the second combination from the second control panel.