Door locking device
AssigneeHosem Reliable Protection System Ltd.
InventorAbraham Amgar
Life of this patent
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Abstract
A door-locking device is described including a plurality of locking bars drivable to a locking position projecting from the sides of the door into the door frame by means of a rotatable drive gear and a plurality of gear-cam segments, one for each locking bar. Each segment includes gear teeth formed on a first portion of its outer circumference meshing with the teeth of the drive gear, and a cam surface formed on a second portion of its outer circumference engageable by a cam follower carried by its respective locking bar. The locking device further includes a key-operated locking cylinder and an overlying protector plate having an opening covered by a disc formed with the key slot, the disc being yieldingly secured to the protector plate to thereby prevent a drill from penetrating same into the lock cylinder.
Claims8
A locking device mountable within a door and including at least one locking bar driven by actuator means to a locking position projecting from the respective side of the door into the door frame, or to an unlocking position withdrawn from the door frame, characterized in that the inner end of each locking bar includes a cam follower, and in that said actuator means includes a rotatable drive gear and a gear-cam segment for each locking bar driven by said drive gear and coupled to its respective locking bar for driving same;
- said segment including gear teeth formed on a first portion of its outer circumference meshing with the teeth of the drive gear, and a cam surface formed on a second portion of its outer circumference engageable by the cam follower carried by its respective locking bar.
Dependencies are inferred from the claim text.