Handle device for operating doors, windows and the like, comprising a first element (3), which is rotatable about an axis of rotation, a second element (8, 108, 208, 308), and a coupling device which is designed to selectively allow and prevent relative rotation about the axis of rotation between the first and the second element. The coupling device comprises; a first coupling member (15, 115, 215, 315, 515, 615) being connected to the first element; a second coupling member (8, 150, 208, 350) being connected to constituting the second element and at least one engaging member (19, 119, 219, 319, 519) which is displaceable between an engagement position in which it simultaneously engages the first and the second coupling members to thereby prevent relative rotation between the first and second element and a release position in which it is disengaged from at least one of the first and second coupling members to thereby allow relative rotation between the first and second element. A drive member (21, 121, 221, 321, 421, 521, 621) is arranged axially displaceable, concentrically with said axis of rotation, by means of an electrical motor (6, 106, 206, 306, 406, 506) having a rotational output shaft (36, 136, 236, 336, 436, 536, 636). The engaging member and drive member comprise interacting contact surfaces arranged, during axial displacement of the drive member, to displace the engagement member from the release position to the engagement position. The drive member exhibits an interior recess (27, 127, 227, 327, 427, 527). A portion (36, 136, 236, 336, 436a, 536, 636) of the output shaft extends axially through the recess. A helical coil spring (38, 138, 238, 338, 538, 638) is arranged in the recess, concentrically about the output shaft, limitedly axially displaceable relative to the drive member and the output shaft and prevented from free rotation relative to the drive member or the output shaft. The output shaft or the drive member is provided with a radially extending spring engagement member (37, 137, 237, 337, 537, 637) which is arranged to engage the helical coil spring for axial displacement of the drive member relative to the output shaft upon rotation of the output shaft.

A locking mechanism is selectively operable both electronically and mechanically by way of an integrated mechanical lock and motorized lock mechanism. A motorized lock mechanism is incorporated with a mechanical lock to provide for keyless access, while the mechanical lock and key system remains as a back-up. A toggle assembly is selectively positioned either mechanically via a first cam, or electronically via a second cam, both selectively operable independently of each other, without interference from each other, to move the toggle assembly to its unlocked position. A spring biases the toggle assembly to its locked position when the first and second cams are in their locked positions.

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.

An exemplary electric strike includes a housing and a keeper pivotally mounted in the housing. The strike also includes a plunger having an extended position and a retracted position, a cage including an aperture, and a locking element movably seated in the aperture. The locking element is engaged with the plunger, and the plunger is structured to urge the locking element radially outward as the plunger moves from an extended position toward a retracted position. The strike also includes a sleeve, a transmission engaged with the sleeve, and a motor drivingly coupled to the transmission. The sleeve is structured to selectively prevent radially outward movement of the locking element and retraction of the plunger. The strike also includes at least one of a lost motion connection and an anti-tamper mechanism.

A switched-mode light-emitting diode (LED) display unit satisfying fire-fighting smoke exhaust and ventilation requirements includes an LED display unit, a mounting member, an opening-closing actuator and a pressing member. The LED display unit is mounted on the mounting member and the mounting member is mounted on a display panel by an opening-closing actuator and pressed against the display panel by a pressing member. The switched-mode LED display unit provides the pressing member that works to release the pressed mounting member after obtaining a triggering command and the opening-closing actuator that turns on the LED display unit subsequently, thereby meeting the fire smoke exhaust ventilation requirement of the internal surface or the external surface of a building.

A magnetic self-latching device for a gate has a main body with handles on either side for operation or has an arrangement to be remotely actuated. A latching body has a high strength magnet usually provided at the bottom of a cavity which defines a latching shoulder. The latching body is adapted to be fixed to a gate post. The main body, with its housing, can be mounted on the gate frame and incorporates a latch pin which, in the door-closed position, is displaced by magnetic attraction to an extended latching position and against the biasing of a return spring. The gate cannot be opened until actuation of the mechanism occurs, for example by rotating a handle to retract the pin against the magnetic force; the gate can then be swung open. When the handle is released, the biasing spring retains the latch pin in a retracted position.

An electronic latch assembly includes a latch bolt movable between an extended position and a retracted position; and a motor having a rotatable output shaft arrangement that is either directly or indirectly connected to the latch bolt for moving the latch bolt between the extended and retracted positions and rotating the output shaft arrangement between a first angular position in which the latch bolt is capable of being translated to the retracted position and a second angular position in which the latch bolt is locked and not capable of being translated to the retracted position.

A vault door system for use in a vault includes a door supporting a plurality of locking bolts that move between locked and unlocked positions. A drive system includes a prime mover and a drive train. The prime mover actuates the drive train to move the locking bolts between the locked and unlocked positions. An inner handle is at an inner side of the door and is arranged to be accessible from an interior of the vault. The inner handle is operatively coupled to the drive train and is movable between a first position and a second position. In the first position, the drive train operatively couples the prime mover to the plurality of locking bolts so that the prime mover can move the locking bolts between the locked and unlocked positions. In the second position, the drive train does not operatively couple the prime mover to the plurality of locking bolts.

An electric lock system, includes an electric lock and an electric key. The electric lock includes a lock body and a lock core, and the lock body has a key limit slot and a key limit slide. The lock core includes a T-shaped magnet, a solenoid and a lock pin. The T-shaped magnet is fixed to the lock core, and the lock pin is connected to the solenoid, the solenoid can generate a magnet field when energized, and the magnet field generate a force with the T-shaped magnet, and drives the lock pin to stop limiting the lock body. The electric key includes a lithium battery and a metal housing, and the metal housing has a key limit head corresponding to a shape of the key limit slot. The electric key provides electric power to the lock core by contacting the key limit head to the key limit slot.

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.