Motorized electric strike
AssigneeSchlage Lock Company LLC
InventorJohn A. Snodgrass
Life of this patent
Estimating the term…
Abstract
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.
Claims21
1-20. (canceled)
An electric strike, comprising:
- a housing;
- a keeper pivotally mounted in the housing, the keeper having an open position and a closed position;
- a lock assembly having a locking state in which the lock assembly retains keeper in the closed position and an unlocking state in which the keeper is pivotable toward the open position, wherein the lock assembly includes a sleeve having a locking position defining the locking state and an unlocking position defining the unlocking state;
- an electric driver operable to move the sleeve between the locking position and the unlocking position;
- and
- an anti-tamper mechanism structured to retain the sleeve in the unlocking position when the keeper is in the open position.
An electric strike, comprising:
- a housing;
- a keeper pivotally mounted in the housing, wherein the keeper is biased toward a closed position and is selectively pivotable to an open position;
- a lock assembly having a locking state in which the lock assembly retains the keeper in the closed position and an unlocking state in which the keeper is pivotable toward the open position;
- a sleeve having a locking position defining the locking state and an unlocking position defining the unlocking state;
- an electric driver operable to move the sleeve between the locking position and the unlocking position;
- and
- a spring urging the sleeve toward the locking position.
An electric strike, comprising:
- a housing;
- a keeper pivotally mounted in the housing, wherein the keeper is biased toward a closed position and is selectively pivotable to an open position;
- a lock assembly having a locking state in which the lock assembly retains the keeper in the closed position and an unlocking state in which the keeper is pivotable toward the open position;
- an electric driver operable to transition the lock assembly between the locking state and the unlocking state;
- and
- an anti-tamper mechanism configured to retain the lock assembly in the unlocking state when the keeper is in the open position, and to permit the lock assembly to transition from the unlocking state to the locking state when the keeper is in the closed position.
Dependencies are inferred from the claim text.