Dual lock with simultaneous retraction of latch and deadbolt by inside lever and uncoulpler between driving spindle and the lever

A tubular door lock comprising:

• a latch assembly for selectively extending a latch bolt;
• a driver for driving said latch assembly;
• an outside chassis assembly including
• an outside housing,
• an outside spindle mounted in said outside housing for rotation about an axis without axial movement relative to said outside housing,
• an outside manual actuator fixed to said outside spindle, and,
• key-operated means for selectively coupling said outside manual actuator to said driver;
• an inside chassis assembly including
• an inside housing,
• a hollow outer spindle mounted in said housing for rotation about said axis without axial movement relative to said inside housing,
• an inside manual actuator fixed to said outer spindle for imparting rotational movement thereto,
• a driven spindle and a spindle core,
• said driven spindle having an opening therein into which an end of said driver extends,
• said spindle core being disposed within and operatively engaging said outer spindle so as to rotate therewith, said spindle core having an opening therein in which said driven spindle may freely rotate when said driver is rotated in response to rotation of said outside manual actuator;
• at least one projection on said driven spindle and at least one abutment on a wall defining said opening in said spindle core, said abutment and said projection being disposed so that upon rotation of said inside manual actuator said abutment engages said projection to rotate said driven spindle and said driver;
• said door lock further comprising a button bracket disposed within said outer spindle, and, a lock bar extending through said driver from said lock means to said button bracket,
• said button bracket having an opening therein for receiving an end of said lock bar, said opening being configured to the shape of said lock bar whereby, upon rotation of said button bracket in a first or a second direction, said lock means is locked or unlocked.

A tubular door lock comprising:

• a latch assembly for selectively extending a latch bolt;
• a driver for driving said latch assembly;
• outside chassis assembly including
• an outside housing,
• an outside spindle mounted in said outside housing for rotation about an axis without axial movement relative to said outside housing,
• an outside manual actuator fixed to said outside spindle, and,
• key-operated means for selectively coupling said outside manual actuator to said driver;
• an inside chassis assembly including
• an inside housing,
• a hollow outer spindle mounted in said inside housing for rotation about said axis without axial movement relative to said inside housing,
• an inside manual actuator fixed to said outer spindle for imparting rotational movement thereto,
• a driven spindle and a spindle core,
• said driven spindle having an opening therein into which an end of said driver extends,
• said spindle core being disposed within and operatively engaging said outer spindle so as to rotate therewith, said spindle core having an opening therein in which said driven spindle may freely rotate when said driver is rotated in response to rotation of said outside manual actuator;
• at least one projection on said driven spindle and at least one abutment on a wall defining said opening in said spindle core, said abutment and said projection being disposed so that upon rotation of said inside manual actuator said abutment engages said projection to rotate said driven spindle and said driver;
• said door lock further comprising
• a deadbolt operating assembly for selectively moving a deadbolt between an extended position and a retracted position;
• and,
• an interconnect mechanism operatively linking said inside chassis assembly to said deadbolt operating assembly for retracting said deadbolt as said latch bolt is retracted in response to rotation of said inside manual actuator.

A tubular door lock comprising:

• a deadbolt operating assembly for selectively moving a deadbolt between an extended position and a retracted position;
• a latch bolt operating assembly for selectively moving a latch bolt between an extended position and a retracted position;
• an inside chassis assembly having an inside manual actuator;
• an outside chassis assembly having an outside manual actuator;
• a rotatable driver extending between said outside chassis assembly and said inside chassis assembly and operatively associated with said inside manual actuator, said outside manual actuator and said latch bolt operating assembly so that said latch bolt is retracted by rotation of said driver upon rotation of either said inside manual actuator or said outside manual actuator;
• and,
• interconnect means responsive to rotation of said inside manual actuator for controlling said deadbolt operating assembly to retract said deadbolt as said latch bolt is retracted;
• said inside chassis assembly including a lost motion mechanism between said driver and said inside actuator;
• said inside chassis assembly and lost motion mechanism transmit rotational movement of said inside actuator to said driver while preventing rotation of said driver in response to rotation of said outside actuator;
• whereby rotation of said driver in response to rotation of said outside manual actuator does not cause retraction of said deadbolt by said interconnect means.