Lock mechanism
AssigneeAssa Abloy Australia Pty Limited
InventorDavid Blanch
Life of this patent
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Abstract
This invention relates to an electrically controlled lock assembly (1) including a housing (10) and a retainer (6) mounted on the housing for movement relative thereto between an open and closed position. The lock assembly also includes locking means (12) including a detent (21) that when retained in an active position stops the retainer from moving relative to the housing. The lock assembly also includes an electrical actuator (14) being operable to cause the (10) retaining means to adopt a locked or released condition.
Claims19
An electric strike assembly for releasably retaining a bolt including:
- a housing,
- a keeper which in use interacts with the bolt, the keeper being mounted on the housing and being movable relative to the housing from a closed position,
- locking means including a detent that cooperates with the keeper so that when the detent is retained in an active position the keeper is stopped from being moved from its closed position so that in use the keeper retains the bolt,
- the locking means including retaining means having locked condition and a released condition, whereby when in the locked condition the retaining means retains the detent in the active position, and when in the released condition the retaining means releases the detent for movement from the active position, the retaining means including a movable member that adopts a first position where the detent is in the active position and moves towards a second position when the detent is moved from the active position, the retaining means also including a stop that obstructs movement of the movable member towards the second position when the retaining means is in the locked condition, and
- an electrical actuator including a solenoid with a plunger, the plunger being adjustably connectable to the stop so as to allow the locking means to operate in a fail safe mode whereby energization of the actuator causes the retaining means to adopt the locked condition, or after adjustment of the connection of the stop to the plunger to operate in a fail secure mood whereby energization of the actuator causes the retaining means to adopt the released condition,
- wherein when the retaining means is in the locked condition, urging the keeper to move relative to the housing urges the retaining means to endeavour to adopt the released condition, and wherein when the retaining means is in the released condition the detent is movable from the active position by movement of the keeper relative to the housing from the closed position when releasing the bolt.
A locking means for use in an electrically controlled lock assembly having a housing and a retainer being mounted on the housing and being movable relative to the housing from a locked position to a released position, the locking means including:
- a detent having an active position in which the retainer is stopped from being moved from its locked position, the locking means also including retaining means that when in a locked condition retains the detent in the active position, and when in a released condition releases the detent for movement from the active position,
- wherein when the retaining means is in the locked condition, urging the retainer to move relative to the housing urges the retaining means to endeavour to adopt the released condition, where the retaining means is in the released condition the detent is movable from the active position by movement of the retainer relative to the housing from the closed position,
- wherein the retaining means includes a movable member that adopts a first position when the detent is in the active position and moves to a second position when the detent is moved from the active position, the retaining means also including a stop that obstructs movement of the movable member to the second position when the retaining means is in the locked condition,
- an electrical actuator which interacts with the locking means and is operable to cause the retaining means to adopt the locked condition or the released condition, the electrical actuator including a solenoid with a plunger, the plunger being adjustably connectable to the stop so as to allow the locking means to operate in a fail safe mode whereby energization of the actuator causes the retaining means to adopt the locked condition, or after adjustment of the condition of the stop to the plunger to operate in a fail secure mode whereby energization of the actuator causes the retaining means to adopt the released condition.
Dependencies are inferred from the claim text.