Patent ID: 6978646
Filing Date: 2005-12-27
Classification: E05B,Y10T

Abstract:
1. A door lock comprising: a lock case having first and second sides, a bolt, a follower acting on the bolt, a spindle, first and second torsion units installed in the lock case at opposite respective sides of the follower and turnable relative to the follower about an operating axis of the lock, each torsion unit defining a spindle aperture, and wherein the spindle can be inserted selectively either in the spindle aperture of the first torsion unit from the first side of the lock case for turning the first torsion unit or in the spindle aperture of the second torsion unit from the second side of the lock case for turning the second torsion unit, a coupling member that is movable relative to the follower to a coupling position in which the coupling member couples at least the first torsion unit to the follower for force transmission from the first torsion unit to the follower, an actuator for effecting movement of the coupling member, and an adapting member that can be installed in the spindle aperture of the first torsion unit for preventing the spindle from directly engaging the follower when the spindle is inserted in the spindle aperture of the first torsion unit, wherein the adapting member is removable from the spindle aperture of the first torsion unit and installable in the spindle aperture of the second torsion unit.