Electro-mechanical locks with bezel turning function

Patent metadata

Field	Value
Publication number	US-9487971-B2
Application number	US-201414205891-A
Country	US
Kind code	B2
Filing date	Mar 12, 2014
Priority date	Mar 15, 2013
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

The present disclosure provides an electro-mechanical lock assembly which illustratively includes a motor, a gear, a driver, a torque member, a housing, and a bezel. The motor is operable upon selective input. The motor is also coupled to the driver to engage both the gear and the housing when the motor is in operation. The bezel is attached to the gear such that when the driver is engaged with both the gear and the housing, manual rotation of the bezel will rotate the housing. The housing is attached to the torque member which is configured to move a latch such that when the bezel rotates the latch is moved.

First claim

What is claimed is:

1. An electro-mechanical lock assembly comprising:
a keypad;
a motor;
a gear;
a spline-driver;
a torque member;
a torque-driver housing;
a bezel;
wherein the motor is operable upon selective input to the keypad;
wherein the gear is axially aligned with the torque-driver housing;
wherein the motor is coupled to the spline-driver to cause the spline-driver to engage both the gear and the torque-driver housing when the motor is in operation;
wherein the bezel is attached to the gear such that when the spline-driver is engaged with both the gear and the torque-driver housing, manual rotation of the bezel will rotate the torque-driver housing; and
wherein the torque-driver housing is attached to the torque member which is configured to move a latch such that when the bezel rotates the latch is moved.

2. The electro-mechanical lock assembly of claim 1 , further comprising a base located adjacent the bezel and configured to fit against a door.

3. The electro-mechanical lock assembly of claim 1 , wherein the keypad is configured to receive a combination code as the selective input to operate the motor.

4. The electro-mechanical lock assembly of claim 1 , further comprising a cable ribbon in communication with a PCB board that determines if a proper combination code as the selective input is entered into the keypad to direct a signal to the motor to operate the motor.

5. The electro-mechanical lock assembly of claim 4 , wherein the cable ribbon is extendable from the electro-mechanical lock assembly and connectable to a battery case in a turnpiece assembly.

6. The electro-mechanical lock assembly of claim 5 , wherein the cable ribbon is supported by a support attached to the electro-mechanical lock assembly so the cable ribbon does not interfere with any backset assembly components that move a door latch or bolt.

7. The electro-mechanical lock assembly of claim 5 , wherein the turnpiece assembly includes a plate, the battery case, a button, vibration dampening pads, a rose, and a knob.

8. The electro-mechanical lock assembly of claim 7 , wherein the button may engage a switch mechanism that is in communication with at least one battery in the battery case to send a signal through the ribbon cable to operate the motor.

9. The electro-mechanical lock assembly of claim 1 , further comprising a drive rod that is attached to the motor; wherein the drive rod rotates as the motor operates; a pin extends transversely through the drive rod and rotates with the drive rod; a spring is wound around the drive rod; a second spring extends from the spline-driver to the torque-driver housing; wherein the pin acts as a cam follower by engagement of the coil wire of the spring.

10. The electro-mechanical lock assembly of claim 9 , wherein engagement of the coil wire of the spring compresses or extends the spring along the longitudinal length of the drive rod; a carriage is movable back and forth along the drive rod such that as the spring expands or compresses the carriage is engagable with the spline-driver such that as the pin extends or retracts the spring the spline-driver is likewise pulled or pushed.

11. The electro-mechanical lock assembly of claim 10 , wherein the second spring is in compression so it biases the spline-driver towards the pin.

12. The electro-mechanical lock assembly of claim 1 , wherein the torque member is attached to the torque-driver housing by a second pin.

13. An electro-mechanical lock assembly comprising:
a keypad;
a motor;
a gear;
a spline-driver;
a torque member;
a torque-driver housing;
a bezel;
wherein the motor is operable upon selective input to the keypad;
wherein the motor is coupled to the spline-driver to cause the spline-driver to engage both the gear and the torque-driver housing when the motor is in operation;
wherein the bezel is attached to the gear such that when the spline-driver is engaged with both the gear and the torque-driver housing and the spline-driver-is moved to a location that is between both the torque-driver housing and the gear, manually rotating the bezel attached to the gear rotates the torque-driver housing which is attached to and rotates the torque member; and
wherein the torque member is configured to move a latch such that when the bezel rotates the latch is moved.

14. The electro-mechanical lock assembly of claim 13 , wherein when the spline-driver is not engaged to both the torque-driver housing and the gear, the torque-driver housing will not rotate the torque member.

15. An electro-mechanical lock assembly comprising:
a motor;
a coupling;
a driver;
a torque member;
a torque-driver housing;
a bezel;
wherein the motor is coupled to the driver to engage both the coupling and the torque-driver housing when the motor is in operation;
wherein the gear is axially aligned with the torque-driver housing;
wherein the bezel is attached to the coupling such that when the driver is engaged with both the coupling and the torque-driver housing, manual rotation of the bezel will rotate the torque-driver housing; and
wherein the torque-driver housing is attached to the torque member which is configured to move a latch such that when the bezel rotates the latch is moved.

16. The electro-mechanical lock assembly of claim 15 , further comprising a base located adjacent the bezel and configured to fit against a door.

17. The electro-mechanical lock assembly of claim 15 , further comprising a keypad that is configured to receive a combination code to operate the motor.

18. The electro-mechanical lock assembly of claim 15 , further comprising a cable ribbon in communication with a PCB board that determines if a proper combination code as the selective input is entered into the keypad to direct a signal to the motor to operate the motor.

19. The electro-mechanical lock assembly of claim 18 , wherein the cable ribbon is extendable from the electro-mechanical lock assembly and connectable to a battery case in a turnpiece assembly.

20. The electro-mechanical lock assembly of claim 19 , wherein the cable ribbon is supported by a support attached to the electro-mechanical lock assembly so the cable ribbon does not interfere with any backset assembly components that move a door latch or bolt.

21. The electro-mechanical lock assembly of claim 19 , wherein the turnpiece assembly includes a plate, the battery case, a button, vibration dampening pads, a rose, and a knob.

22. The electro-mechanical lock assembly of claim 21 , wherein the button may engage a switch mechanism that is in communication with at least one battery in the battery case to send a signal through the ribbon cable to operate the motor.

23. The electro-mechanical lock assembly of claim 15 , further comprising a drive rod that is attached to the motor; wherein the drive rod rotates as the motor operates; a pin extends transversely through the drive rod and rotates with the drive rod; a spring is wound around the drive rod; a second spring extends from the driver to the torque-driver housing; wherein the pin acts as a cam follower by engagement of the coil wire of the spring.

24. The electro-mechanical lock assembly of claim 23 , wherein engagement of the coil wire of the spring compresses or extends the spring along the longitudinal length of the drive rod; a carriage is movable back and forth along the drive rod such that as the spring expands or compresses the carriage is engagable with the dr

Assignees

• Kwikset Corp
• Spectrum Brands Inc

Inventors

• Quach Byron
• Farag Hanna Osama
• Lin James

Classifications

• E05B47/0005

  said core being rotary movable · CPC title

• E05B1/0007

  Knobs (E05B1/0015, E05B1/0053, E05B1/0061, E05B1/0069 take precedence) · CPC title

• E05B2047/0031

  of the elastic type · CPC title

• Y10T70/7068

  Actuated after correct combination recognized [e.g., numerical, alphabetical, or magnet[s] pattern] · CPC title

• E05B2047/0058

  by batteries · CPC title