초록 ▼

An electrically operable door lock apparatus is disclosed which may be installed on a door through which access is to be controlled by an electrically operable security system, whereby the door opening mechanism is selectively locked and unlocked by controlling the supply of electricity to the door

An electrically operable door lock apparatus is disclosed which may be installed on a door through which access is to be controlled by an electrically operable security system, whereby the door opening mechanism is selectively locked and unlocked by controlling the supply of electricity to the door locking mechanism to thereby control access or egress through the door. The electrically operable door lock apparatus uses an electromagnetic actuator to drive a locking member in reciprocating movement between a locked position in which it engages a latch actuating member to prevent it from being rotated to retract a latch bolt to open a door, and an unlocked position in which it is disengaged from the latch actuating member to allow it to be rotated to retract the latch bolt to open the door. By reversing the position of the electromagnetic actuator in the door lock apparatus, the system may operate in either a fail secure mode in which the electromagnetic actuator must be powered to unlock the door, or a fail safe mode in which the electromagnetic actuator must be powered to lock the door.

대표청구항 ▼

[ What is claimed is:] [1.] An electrically operable door lock apparatus for installation into a door hingedly mounted in a door frame having a striker plate mounted in a side thereof, said door lock apparatus comprising:a lock housing member for installation into the door;a latch bolt installed for

[ What is claimed is:] [1.] An electrically operable door lock apparatus for installation into a door hingedly mounted in a door frame having a striker plate mounted in a side thereof, said door lock apparatus comprising:a lock housing member for installation into the door;a latch bolt installed for movement in said lock housing member between a deployed position in which said latch bolt extends out of said lock housing member and is engaged by the strike plate if the door is closed, and a retracted position in which said latch bolt is contained entirely within said lock housing member such that it may not engage the strike plate;a latch actuating mechanism for movement between a first position in which said latch bolt will be deployed and a second position in which said latch bolt will be retracted by said latch actuating mechanism;a locking member moveable between a first position in which said locking member is disengaged from said latch actuating mechanism and a second position in which said locking member engages said latch actuating mechanism in its first position and prevents it from being moved to its second position; andan electromagnetic actuator for driving said locking member into one of its first and second positions when electromagnetic actuator is energized, and the other of said locking member's first and second positions when said electromagnetic actuator is not energized, wherein said electromagnetic actuator comprises:a stationary member for installation into said lock housing member in either a first position or a second position;a moveable member installed for movement between a first position when said electromagnetic actuator is electrically energized, and a second position when said electromagnetic actuator is not electrically energized, wherein said moveable member has first and second opposite ends, said first end of said moveable member extending from a first side of said stationary member and comprising first means for engaging said locking member, and said second end of said moveable member extending from a second side of said stationary member opposite said first side of said stationary member and comprising second means for engaging said locking member, wherein when said moveable member is in said first position, said first end of said moveable member is retracted inwardly toward said first side of said stationary member and said second end of said moveable member is extended outwardly from said second side of said stationary member; anda spring for biasing said moveable member from said first position into said second position;wherein, if said stationary member is installed into said lock housing member in said first position, said first end of said moveable member is oriented toward said locking member and said first engaging means engages said locking member to drive said locking member from said second position of said locking member to said first position of said locking member when said electromagnetic actuator is electrically energized, said locking member being in said second position when said electromagnetic actuator is not electrically energized; andwherein, if said stationary member is installed into said lock housing member in said second position, said second end of said moveable member is oriented toward said locking member and said second engaging means engages said locking member to drive said locking member from said first position of said locking member to said second position of said locking member when said electromagnetic actuator is electrically energized, said locking member being in said first position when said electromagnetic actuator is not electrically energized.