Patent ID: 7856856
Filing Date: 2010-12-28
Classification: E05B,Y10T

Abstract:
1. An interconnecting mechanism for driving a latchbolt of a latchbolt lock mechanism in a first bore of a door and a deadbolt of a deadbolt lock mechanism in a second bore of the door, the interconnecting mechanism comprising: a handle gear rotated by an inner handle, the inner handle being movable between an up position, an intermediate position and a down position; at least one deadbolt gear connected to drive the deadbolt between bolted and unbolted positions, the at least one deadbolt gear being driven by the handle gear as the inner handle moves between the up position and the intermediate position, and the at least one deadbolt gear not being driven by the handle gear as the inner handle moves between the intermediate position and the down position; a latchbolt hub connected to drive the latchbolt between latched and unlatched positions, the latchbolt hub being driven by the handle gear with lost motion such that the latchbolt hub is not driven by the handle gear as the inner handle moves between the up position and the intermediate position, and the latchbolt hub is driven by the handle gear as the inner handle moves between the intermediate position to the down position; wherein the handle gear drives a first latchbolt lever, the first latchbolt lever drives a latchbolt slide vertically and the latchbolt slide drives a second latchbolt lever connected to the latchbolt hub.