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A security lock is provided for a door having a top, a bottom, a frame and a deadbolt lock. The security lock includes a first bolt which is mountable on the door so as to extend to the top thereof to selectively engage the frame near the top of the door. There is a second bolt mountable on the door

A security lock is provided for a door having a top, a bottom, a frame and a deadbolt lock. The security lock includes a first bolt which is mountable on the door so as to extend to the top thereof to selectively engage the frame near the top of the door. There is a second bolt mountable on the door so as to extend to the bottom thereof to selectively engage the frame near the bottom of the door. There is also a mechanism which operatively connects the first bolt and the second bolt to the deadbolt lock. When the deadbolt lock is engaged, the first bolt and the second bolt engage the frame. When the deadbolt lock is disengaged, the first bolt and the second bolt are disengaged from the frame.

대표청구항 ▼

1. A security apparatus comprising:a door having a first edge, a second edge, a frame and a dead bolt lock; and a security lock including a first bolt mountable on the door so as to extend to the first edge thereof to selectively engage the frame near the first edge of the door, a second bolt mounta

1. A security apparatus comprising:a door having a first edge, a second edge, a frame and a dead bolt lock; and a security lock including a first bolt mountable on the door so as to extend to the first edge thereof to selectively engage the frame near the first edge of the door, a second bolt mountable on the door so as to extend to the second edge thereof to selectively engage the frame near the second edge, and a mechanism which operatively connects the first bolt to the dead bolt lock whereby, when the dead bolt lock is engaded, the first bolt engages the frame and, when the dead bolt lock is disengaged, the first bolt is disengaged from the frame, the mechanism operatively connecting the second bolt to the dead bolt lock, whereby, when the deadbolt is engaged, the second bolt engages the frame and, when the dead bolt lock is disengaged, the second bolt is disengaged from the frame, the mechanism including a lever and each of the bolts behind connected to a separate rack, both racks being operatively coupled to a pinion and being slidably mounted on the door such that both racks and both bolts simultaneously move towards the frame to engage the security lock and simultaneously move away from the frame to disengage the security lock, the lever operatively connecting the dead bolt lock to one of the racks, a cranked member being engageable with the dead bolt lock and being rotatable therewith, the lever being pivotally connected to said crank member, the lever having a first end adjacent the crank member, a second end adjacent said one rack and a slot between said one rack and the crank member, the security lock including a pin extending through the slot, whereby, when the crank member moves the first end of the lever in one direction, the second end of the lever moves the rack in a direction opposite said one direction.