Patent ID: 6615630
Filing Date: 2003-09-09
Classification: E05B,Y10T

Abstract:
A door lock comprising:an inside handle incorporating a press button; an outside handle; an outside spindle tube including a first end connected to said outside handle, a second end opposite to said first end, and a first engaging member projecting radially inward from said second end; an insert tube inserted into said outside spindle tube through said second end, and including a third end adjacent said second end, a fourth end extending inside said outside spindle tube, and a latch operating tab which projects from said third end to extend outwardly of said third end and which is adapted to operate a latch operating mechanism, said insert tube further having an inner wall and a second engaging member projecting inwardly forms aid inner wall between said third and fourth ends, wherein said insert tube is not axially movable; a clutch member disposed inside said insert tube and having an outer peripheral surface formed with first and second axial grooves, said second axial groove engaging said second engaging member of said insert tube, said clutch member being axially movable between a first position in which said first engaging member engages slidably said first axial groove and a second position in which said first engaging member disengages from said first axial groove; a spring disposed inside said insert tube to urge said clutch member toward said third end so as to place said clutch member in said first position; and a spindle rod having one end connected to said press button and another end connected to said clutch member so as to move said clutch member to said second position when said press button is pressed.