Touch pad lock assembly with clutch system

A lock assembly adapted for mounting adjacent an associated closure of the type that can be shifted between an open position and a closed position, the lock assembly comprising:

• a housing;
• an external handle mounted in an exterior portion of the housing for actuation between a first position and a second position;
• a latch plunger operably connected with the external handle and configured such that when the external handle is in the first position, the latch plunger is in a latched position, wherein the closure cannot be unintentionally shifted from the closed position, and when the external handle is in the second position, the latch plunger is in an unlatched position, wherein the closure is free to be shifted from the closed position to the open position;
• a lock cam rotatably mounted in the housing having a locked and unlocked position;
• a motor;
• a motor cam clutch operably coupled with the motor and operably interposed between the lock cam and the motor;
• a motor crank arm operatively coupled with each of the motor and the lock cam, and the motor cam clutch being interposed between the motor crank arm and the motor;
• a deadbolt lock movably mounted in the housing and operatively coupled with each of the lock cam and the motor for shifting between a locked position, wherein the closure is positively retained in the closed position, and an unlocked position, wherein the closure is free to be shifted between the open and closed positions;
• an input device operatively connected with the motor, whereby actuation of the input device actuates the motor and contemporaneously shifts the deadbolt lock between the locked and unlocked positions;
• a first link operably connecting the motor crank arm with the deadbolt lock;
• and
• a second link operably connecting with the motor crank arm and the lock cam, wherein rotation of the lock cam operates through the second link to rotate the motor crank arm and rotation of the motor crank arm operates through the first link to shift the deadbolt lock between the locked and unlocked positions.

A lock assembly adapted for mounting adjacent an associated closure of the type that can be shifted between an open position and a closed position, the lock assembly comprising:

• a housing;
• an external handle having a first position and a second position;
• a latch plunger operably connected with the external handle and configured such that when the external handle is in the first position, the latch plunger is in a latched position, wherein the closure cannot be unintentionally shifted from the closed position, and when the external handle is in the second position, the latch plunger is in an unlatched position, wherein the closure is free to be shifted from the closed position to the open position;
• a lock cam rotatably mounted in the housing about an axis of the lock cam having a locked and unlocked position;
• a motor;
• a motor crank arm operatively coupled with each of the motor and the lock cam;
• a motor cam clutch operably coupled with the motor and operably interposed between the motor crank arm and the motor;
• a deadbolt lock movably mounted in the housing and operatively coupled with each of the lock cam and the motor for shifting between a locked position, wherein the closure is positively retained in the closed position, and an unlocked position, wherein the closure is free to be shifted between the open and closed positions;
• and
• an input device operatively connected with the motor, whereby actuation of the input device actuates the motor and contemporaneously shifts the deadbolt lock between the locked and unlocked positions.

A lock assembly adapted for mounting adjacent an associated closure of the type that can be shifted between an open position and a closed position, the lock assembly comprising:

• a housing;
• an external handle having a first position and a second position;
• a latch plunger operably connected with the external handle and configured such that when the external handle is in the first position, the latch plunger is in a latched position, wherein the closure cannot be unintentionally shifted from the closed position, and when the external handle is in the second position, the latch plunger is in an unlatched position, wherein the closure is free to be shifted from the closed position to the open position;
• a lock cam rotatably mounted in the housing about an axis of the lock cam having a locked and unlocked position;
• a motor;
• a motor crank arm operatively coupled with each of the motor and the lock cam;
• a motor cam clutch operably coupled with the motor and operably interposed between the motor crank arm and the motor;
• a deadbolt lock movably mounted in the housing and operatively coupled with each of the lock cam and the motor for shifting between a locked position, wherein the closure is positively retained in the closed position, and an unlocked position, wherein the closure is free to be shifted between the open and closed positions;
• and
• an input device operatively connected with the motor, whereby actuation of the input device actuates the motor and contemporaneously shifts the deadbolt lock between the locked and unlocked positions;
• wherein a clutch spring is disposed between a stop on the lock cam and an interior backing plate, the clutch spring comprising a central opening that receives a shaft of the lock cam and a pair of opposed radial slots disposed on opposite sides of the central opening of the clutch spring, and the lock cam comprising a corresponding pair of opposed tabs extending radially from the axis of the lock cam proximate an intersection of the shaft and the stop of the lock cam that are disposed to be received by the pair of opposed radial slots disposed on opposite sides of the central opening of the clutch spring, wherein the clutch spring is mechanically and operably coupled with the lock cam and rotates in accordance with the rotation of the lock cam.

A lock assembly adapted for mounting on an associated closure and the like of the type that can be moved between an open position and a closed position and an opening in the closure extending between an exterior and an interior surface of the closure, the lock assembly comprising:

• a housing having an exterior housing plate juxtaposed against the exterior surface of the closure and an interior housing plate juxtaposed against the interior surface of the closure, the exterior and interior housing plates attached one to the other between the exterior and interior surface of the closure;
• a handle mounted upon the exterior housing plate of the housing for rotation between a retracted position and an extended position;
• a latch plunger operably connected with the handle, and configured such that when the handle is in the retracted position, the latch plunger is in a latched position, wherein the closure cannot be unintentionally shifted from the closed position, and when the handle is in the extended position, the latch plunger is in an unlatched position, wherein the closure is free to be moved from the closed position to the open position;
• a key lock mounted on the exterior housing plate of the housing, where the key lock has a locked and an unlocked position;
• a lock cam rotatably mounted in the housing and operably connected with the key lock for rotation therewith, the lock cam having a crank arm;
• a link operably connected with the crank arm of the lock cam;
• a deadbolt lock movably mounted in the housing for shifting between a locked position, wherein the closure is positively retained in the closed position, and an unlocked position, wherein the closure is free to be shifted between the open and closed positions;
• the deadbolt lock being operably connected with the link;
• a motor operatively connected with the link;
• a motor cam clutch operably coupled with the motor and operably interposed between the lock cam and the motor;
• and
• an input device operatively connected with the motor, whereby actuation of the motor shifts the deadbolt lock between the locked and unlocked positions.

A lock assembly adapted for mounting on an associated closure and the like of the type that can be moved between an open position and a closed position and an opening in the closure extending between an exterior and an interior surface of the closure, the lock assembly comprising:

• a housing having an exterior housing plate juxtaposed against the exterior surface of the closure and an interior housing plate juxtaposed against the interior surface of the closure, the exterior and interior housing plates attached one to the other between the exterior and interior surface of the closure;
• a handle mounted upon the exterior housing plate of the housing for rotation between a retracted position and an extended position;
• a latch plunger operably connected with the handle, and configured such that when the handle is in the retracted position, the latch plunger is in a latched position, wherein the closure cannot be unintentionally shifted from the closed position, and when the handle is in the extended position, the latch plunger is in an unlatched position, wherein the closure is free to be moved from the closed position to the open position;
• a key lock mounted on the exterior housing plate of the housing, where the key lock has a locked and an unlocked position;
• a lock cam rotatably mounted in the housing and operably connected with the key lock for rotation therewith, the lock cam having a crank arm;
• a link operably connected with the crank arm of the lock cam;
• a deadbolt lock movably mounted in the housing for shifting between a locked position, wherein the closure is positively retained in the closed position, and an unlocked position, wherein the closure is free to be shifted between the open and closed positions;
• the deadbolt lock being operably connected with the link;
• a motor operatively connected with the link;
• a motor cam clutch operably coupled with the motor and operably interposed between the lock cam and the motor;
• a device to sense a position of the lock cam and to determine whether the deadbolt lock has reached the locked or unlocked position;
• and
• an input device operatively connected with the motor, whereby actuation of the motor shifts the deadbolt lock between the locked and unlocked positions;
• wherein the device to sense the position of the lock cam and to determine whether the lock cam is in the locked or unlocked position includes a pair of micro switches mounted such that when the lock cam is rotated to one of the locked or unlocked positions, a cam on the lock cam depresses one of the pair of micro switches for determining whether the deadbolt lock has reached the locked or unlocked position.