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US 12,601,202 B2Granted
Lock with override mechanism
AssigneeSchlage Lock Company LLC
InventorsShivalingaswamy M. Revanasiddaiah, Naresh Paddillaya, Achyuta Dhanvantri, Ravi Telang
Life of this patent
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Abstract
An example lock apparatus generally includes a housing, a latch spindle, a drive spindle, an electronic lock mechanism, and an override mechanism. The latch spindle is mounted for rotation relative to the housing, and is operable to actuate a latch mechanism. The drive spindle is mounted for rotation relative to the housing. The electronic lock mechanism is disposed in the housing, and is operable to selectively couple the drive spindle with the latch spindle. The override mechanism is disposed in the drive spindle, and is operable to selectively couple the drive spindle with the latch spindle.
Claims19
A lock apparatus, comprising:
- a housing;
- a latch spindle mounted for rotation relative to the housing, wherein the latch spindle is operable to actuate a latch mechanism associated with the lock apparatus;
- a drive spindle mounted for rotation relative to the housing;
- an electronic lock mechanism disposed in the housing and comprising:
- a first coupler operable to selectively couple the drive spindle with the latch spindle when the first coupler is moved in a first direction;
- and
- an actuator operable to move the first coupler in the first direction;
- and
- an override mechanism disposed in the drive spindle and comprising a second coupler operable to selectively couple the drive spindle with the latch spindle when the second coupler is moved in a second direction transverse to the first direction.
6 more elements
A lock apparatus, comprising:
- a housing;
- a latch spindle mounted for rotation relative to the housing, wherein the latch spindle is operable to actuate a latch mechanism;
- a drive spindle mounted for rotation relative to the housing about a longitudinal axis;
- a clutch mechanism disposed in the drive spindle, the clutch mechanism comprising:
- a driver mounted for rotation relative to the drive spindle between a locking position and an unlocking position;
- a follower rotationally coupled with the drive spindle and longitudinally movable relative to the drive spindle between a decoupling position and a coupling position;
- and
- a lock cylinder seated in the drive spindle, wherein a plug of the lock cylinder is operable to rotate the driver from the locking position to the unlocking position;
- and
- an electronic lock mechanism disposed in the housing and operable to selectively couple the drive spindle with the latch spindle by moving a coupler in a direction transverse to the longitudinal axis;
- wherein rotation of the driver from the locking position to the unlocking position longitudinally drives the follower from the decoupling position to the coupling position;
- wherein the follower in the coupling position rotationally couples the drive spindle with the latch spindle;
- and
- wherein the follower in the decoupling position does not rotationally couple the drive spindle with the latch spindle.
11 more elements
A lock apparatus, comprising:
- a housing;
- a drive spindle mounted for rotation relative to the housing;
- a latch spindle mounted for rotation relative to the housing;
- an inline clutch mechanism operable to selectively couple the drive spindle with the latch spindle, the inline clutch mechanism comprising:
- a shell rotationally coupled with the drive spindle;
- a driver rotatably seated in the shell, wherein the driver is rotatable relative to the shell about a longitudinal axis between a home position and a rotated position;
- and
- a follower rotationally coupled with the shell such that rotation of the follower relative to the shell is prevented, wherein the follower is longitudinally movable relative to the shell between a decoupling position in which the follower is disengaged from the latch spindle and a coupling position in which the follower engages the latch spindle to thereby rotationally couple the latch spindle with the drive spindle;
- wherein the driver is engaged with the follower such that rotation of the driver from the home position to the rotated position longitudinally drives the follower from the decoupling position to the coupling position;
- and
- an electronic lock mechanism operable to selectively couple the drive spindle with the latch spindle by moving a coupler in a direction transverse to the longitudinal axis.
8 more elements
Dependencies are inferred from the claim text.