Extended throw deadbolt lock assembly

Abstract

An extended throw deadbolt lock including a housing having a face plate and an axial guide channel formed with a guide path having spaced apart locking seats. Angled transition surfaces extend toward each of the locking seats. A deadbolt member having a transverse locking member slot is mounted within the guide channel and a locking member, including a locking tab disposed in the guide path, is mounted within the locking member slot. A key cylinder having a rotatable cam is mounted on the housing. When the key cylinder is rotated, the cam engages the locking member to drive the locking tab from a locking seat and engage an abutment wall of the deadbolt member slot to drive the deadbolt member in the guide channel such that the tab moves in the guide path toward the other locking seat. At one point, the cam disengages the wall of the slot whereupon a biasing member, having a biasing force, biases the locking tab along the angled transition redirecting the biasing force against the wall of the slot to further drive the deadbolt member in the guide channel an extended distance. The tab is driven along the angled surface far enough so that locking tab is received in the other of the locking seats to lock the deadbolt member in position.