Electronic token and lock core

• US 7,316,140 B2
• Filed: 01/11/2005
• Issued: 01/08/2008
• Est. Priority Date: 04/07/1998
• Status: Expired due to Fees

• Current Assignee: Dormakaba USA Incorporated (dormakaba Holding AG)
• Original Assignee: Stanley Security Solutions Incorporated (Stanley Black & Decker, Inc.)
• Inventors: Beylotte, James Edmond, Russell, Roger Keith, Palmer, Ralph P.
• Primary Examiner(s): Gall; Lloyd A.
• Application Number:
  US11/032,745
• Publication Number:
  US 20050144995A1
• Time in Patent Office: 1,092 Days
• Field of Search: 702/782, 702/783, 702/786, 702/787, 702/791, 702/83, 702/831, 702/77, 70367-369, 703/59, 703/71
• US Class Current: 70/278.3
• CPC Class Codes: E05B 19/04 Construction of the bow or head of the key; Attaching the bow to the shank
• CPC Class Codes: E05B 47/0005 said core being rotary movable
• CPC Class Codes: E05B 47/0006 having a non-movable core; with permanent magnet
• CPC Class Codes: E05B 47/0012 with rotary electromotors actuators with rotary electromotors per se H02K7/06, H02K23/68
• CPC Class Codes: E05B 47/063 with a rectilinearly moveable blocking element
• CPC Class Codes: E05B 47/0634 with a pivotally moveable blocking element
• CPC Class Codes: G07C 9/20 involving the use of a pass
• CPC Class Codes: Y10T 70/7068 Actuated after correct combination recognized [e.g., numerical, alphabetical, or magnet[s] pattern]
• CPC Class Codes: Y10T 70/7079 Key rotated [e.g., Eurocylinder]
• CPC Class Codes: Y10T 70/7102 And details of blocking system [e.g., linkage, latch, pawl, spring]
• CPC Class Codes: Y10T 70/7136 Key initiated actuation of device
• CPC Class Codes: Y10T 70/7571 Concentric tumblers
• CPC Class Codes: Y10T 70/7661 Detachable or removable cylinder

Abstract

A lock system is provided including a lock core and a token. The lock core comprises a core body, a lock actuator coupled to the core body for rotation about an axis, a blocking body, and a solenoid. The solenoid has a shaft that is movable between a first position in which the blocking body is locked to prevent rotation of the lock actuator about the axis and a second position in which the blocking body is unlocked to allow rotation of the lock actuator about the axis. The token is couplable mechanically to the lock actuator. The solenoid moves the shaft from the first position to the second position so that the blocking body is unlocked if the token has a valid access code.

Claims

1. A lock system including

a core body,

a lock actuator coupled to the core body for rotation about an axis,

a blocking body movable between a first position blocking rotation of the lock actuator about the axis and a second position permitting rotation of the lock actuator about the axis,

a return spring that biases the blocking body toward the first position,

a solenoid having a shaft that is movable between a first position in which the blocking body is locked to prevent rotation of the lock actuator about the axis and a second position in which the blocking body is unlocked to allow rotation of the lock actuator about the axis, movement of the shaft of the solenoid permitting biasing of the return spring, and

a token couplable to the lock actuator, the solenoid moving the shaft from the first position to the second position after the token is coupled to the lock actuator, wherein mechanical energy transmitted through the token is stored in the return spring.

2. The lock system of claim 1, wherein the blocking body has a longitudinal axis and the return spring extending in the direction along the longitudinal axis of the blocking body, the return spring includes a plurality of coils that are concentric with the longitudinal axis of the return spring, the core body has a longitudinal axis, and the shaft extends in the direction of the longitudinal axis of the core body.

3. The lock system of claim 1, wherein the mechanical energy is transmitted to the return spring after the solenoid moves the shaft to the second position.

4. The lock system of claim 1, wherein the return spring is movable to a contracted position after the shaft of the solenoid moves from the first position.

5. The lock system of claim 1, wherein the blocking body has a longitudinal axis and the return spring is positioned along the longitudinal axis.

6. The lock system of claim 5, wherein the longitudinal axis of the blocking body is perpendicular to the axis of rotation of the lock actuator.

7. The lock system of claim 1, further including a lock cylinder having an interior region and an opening sized to receive the core body, lock actuator, and solenoid.

8. A lock system including

a core body having a longitudinal axis,

a lock actuator coupled to the core body for rotation about an axis,

a blocking body movable between a first position blocking rotation of the lock actuator about the axis and a second position permitting rotation of the lock actuator about the axis,

a solenoid having a shaft that extends in the direction of the longitudinal axis of the core body and is movable between a first position in which the blocking body is locked to prevent rotation of the lock actuator about the axis and a second position in which the blocking body is unlocked to allow rotation of the lock actuator about the axis, and

a token couplable to the lock actuator to control movement of the shaft between the first and second positions, mechanical energy transmitted through the token urging the blocking body to the second position after the solenoid moves the shaft to the second position.

9. The lock system of claim 8, further comprising a return spring that biases the blocking body toward the first position, energy transmitted through the token being stored in the return spring.

10. The lock system of claim 9, wherein the blocking body has a longitudinal axis and the return spring is positioned along the longitudinal axis of the blocking body.

11. The lock system of claim 10, further including a lock cylinder having an interior region and opening sized to receive the core body, lock actuator, blocking body, and solenoid.

12. The lock system of claim 11, wherein the core body has a figure-8 profile that corresponds to the opening of the lock cylinder.

13. The lock system of claim 8, wherein the token has a power source that provides power to the solenoid when the token is coupled mechanically to the lock actuator.

14. The lock system of claim 13, wherein the token has an electric circuit, the electric circuit includes a clock, and the electric circuit stores data regarding a date and a lime that the token is coupled mechanically to the lock actuator.

15. A lock system including

a core body,

a lock actuator coupled to the core body for rotation about an axis,

a blocking body movable between a first position blocking rotation of the lock actuator about the axis and a second position permitting rotation of the lock actuator about the axis, the blocking body having a longitudinal axis,

a return spring extending in the direction of the longitudinal axis of the blocking body that biases the blocking body toward the first position,

a solenoid having a shaft movable between a first position in which the blocking body is locked to prevent rotation of the lock actuator about the axis and a second position in which the blocking body is unlocked to allow rotation of the lock actuator about the axis,

a lock cylinder having a back, face, interior region, and opening in the face sized to receive the core body, lock actuator, blocking body, and solenoid to permit removal of the core body, lock actuator, blocking body, and solenoid from the face of the lock cylinder, and

a token couplable to the lock actuator to control movement of the shaft between the first and second positions.

16. The lock system of claim 15, wherein the token has a power source that provides power to the solenoid when the token is coupled mechanically to the lock actuator.

17. The lock system of claim 16, wherein the lock actuator has a passage that receives a first portion of the token when the token is mechanically coupled to the lock actuator and the power source is carried by a second portion of the token that is situated outside the passage when the token is coupled mechanically to the lock actuator.

18. The lock system of claim 15, wherein the token has an electric circuit, the electric circuit includes a clock, and the electric circuit stores data regarding a date and a time that the token is coupled mechanically to the lock actuator.

19. The lock system of claim 15, wherein the return spring includes coils that are concentric with the longitudinal axis of the blocking body.

20. The lock system of claim 15, wherein the core body and lock actuator cooperate to define a longitudinal passage and the blocking body and the return spring are positioned in the longitudinal passage to permit the blocking body to slide within the longitudinal passage.

21. The lock system of claim 15, further comprising a control lug rotatable relative to the core body between a first position blocking withdraw of the core body from the lock cylinder and a second position permitting withdraw of the core body through the face of the lock cylinder.

22. The lock system of claim 21, wherein core body has a figure8 profile and the opening in the face of the cylinder lock has a corresponding figure-8 profile.

23. The lock system of claim 15, wherein the shaft of the solenoid has a longitudinal axis that is parallel with the axis about which the lock actuator rotates.

24. The lock system of claim 23, wherein the shaft of the solenoid retracts during movement from the first position to the second position.