IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0331222
(2011-12-20)
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등록번호 |
US-8516863
(2013-08-27)
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발명자
/ 주소 |
- Miller, J. Clayton
- Cooke, Jr., Donald P.
- Harvey, Michael P.
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출원인 / 주소 |
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대리인 / 주소 |
Wood, Herron & Evans, L.L.P.
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
73 |
초록
▼
A high security lock includes a lock bolt movable between extended and retracted positions, a bolt retraction gear coupled to the lock bolt, and a manually-driven gear train. When a controller verifies that user-input information is correct for unlocking the lock, the bolt retraction gear and manual
A high security lock includes a lock bolt movable between extended and retracted positions, a bolt retraction gear coupled to the lock bolt, and a manually-driven gear train. When a controller verifies that user-input information is correct for unlocking the lock, the bolt retraction gear and manually-driven gear train are operatively coupled such that the gear train can drive the lock bolt from the extended position to the retracted position.
대표청구항
▼
1. A locking mechanism comprising: a lock bolt movable between extended and retracted positions;a bolt retraction gear operatively coupled to the lock bolt, the bolt retraction gear movable between engagement and disengagement positions;a manually-driven gear train including a first gear and a secon
1. A locking mechanism comprising: a lock bolt movable between extended and retracted positions;a bolt retraction gear operatively coupled to the lock bolt, the bolt retraction gear movable between engagement and disengagement positions;a manually-driven gear train including a first gear and a second gear, the second gear engaged with the bolt retraction gear in the engagement position;a user input device adapted to receive user input information;a controller adapted to store authorization information and verify user input information; andan actuator having a rotatable output element, the rotatable output element blocking movement of the bolt retraction gear and thereby preventing rotation of the second gear from the disengagement position to the engagement position until the controller verifies that the user input information matches the stored authorization information. 2. A locking mechanism comprising: a lock casing having a front surface and a spindle sleeve extending inwardly from the front surface;a lock bolt disposed at least partially within the lock casing and movable between extended and retracted positions;a manually-driven gear adapted to be operatively coupled to the lock bolt, the gear including a spindle shaft extending through the spindle sleeve and outside the lock casing;a controller including a circuit board having operational circuits controlling the coupling of the manually-driven gear to the lock bolt; anda circuit breaker device adjacent to the spindle sleeve and wired into the operational circuits of the controller, wherein drilling through the spindle sleeve will break the circuit breaker device and render the operational circuits of the locking mechanism inoperative. 3. A locking mechanism comprising: a lock casing having at least one mounting bolt disposed in a bolt receptacle;a lock bolt disposed at least partially within the lock casing, the lock bolt movable between extended and retracted positions; anda blocking member movable between a blocking position over the mounting bolt in the bolt receptacle and a non-blocking position that is not over the mounting bolt, the blocking member operatively connected to the lock bolt such that the lock bolt drives the blocking member from the blocking position to the non-blocking position as the lock bolt moves from the extended position to the retracted position. 4. The locking mechanism of claim 1, wherein the user input device is a rotatable lock dial and the authorization information is a numerical combination. 5. The locking mechanism of claim 4, further comprising a spindle shaft coupling the rotatable lock dial to the manually-driven gear train, wherein the lock dial is rotated to enter user input information and to move the lock bolt from the extended position to the retracted position when the user input information is verified. 6. The locking mechanism of claim 1, wherein the bolt retraction gear further comprises a slot and the rotatable output element further comprises a blocking pin, the blocking pin disposed in the slot of the bolt retraction gear in the disengagement position to block movement of the bolt retraction gear. 7. The locking mechanism of claim 6, wherein the rotatable output element slides the blocking pin out of the slot in the bolt retraction gear as the actuator moves the bolt retraction gear from the disengagement position to the engagement position. 8. The locking mechanism of claim 7, wherein the actuator is a servo motor. 9. The locking mechanism of claim 1, wherein the lock bolt further comprises a slot and the bolt retraction gear further comprises a pivot and a retraction pin, the retraction pin sliding along the slot in the lock bolt as the bolt retraction gear rotates about the pivot to retract and extend the lock bolt. 10. The locking mechanism of claim 1, further comprising a lock casing surrounding the actuator, controller, manually-driven gear train, and the bolt retraction gear, the lock bolt flush with the lock casing in the retracted position. 11. The locking mechanism of claim 10, further comprising a lock bolt extension coupled to the lock bolt, the combined lock bolt and extension projecting beyond the lock casing in the retracted position. 12. The locking mechanism of claim 10, wherein the lock casing is at least partially translucent to reveal evidence of unauthorized drilling into the lock bolt casing. 13. The locking mechanism of claim 12, wherein the controller further comprises a circuit board, the lock casing further comprises a spindle sleeve adjacent to the circuit board, the manually-driven gear train further comprises a spindle shaft extending through the spindle sleeve outside the lock casing, and the locking mechanism further comprises: a circuit breaker device adjacent to the spindle sleeve and wired into the controller, wherein drilling through the spindle sleeve will break the circuit breaker device and render the controller inoperative. 14. The locking mechanism of claim 13, wherein the lock casing further comprises a mounting bolt receptacle, the lock bolt includes a recess, and the locking mechanism further comprises: a retracting bolt shield including a first member coupled to a blocking member, the blocking member movable between a blocking position over the mounting bolt in the bolt receptacle and a non-blocking position outside of the bolt receptacle, the first member disposed within the lock bolt recess and adapted to drive the blocking member from the blocking position to the non-blocking position as the lock bolt moves from the extended position to the retracted position. 15. The locking mechanism of claim 10, wherein the controller further comprises a circuit board, the lock casing further comprises a spindle sleeve adjacent to the circuit board, the manually-driven gear train further comprises a spindle shaft extending through the spindle sleeve outside the lock casing, and the locking mechanism further comprises: a circuit breaker device adjacent to the spindle sleeve and wired into the controller, wherein drilling through the spindle sleeve will break the circuit breaker device and render the controller inoperative. 16. The locking mechanism of claim 15, wherein the lock casing further comprises a mounting bolt receptacle, the lock bolt includes a recess, and the locking mechanism further comprises: a retracting bolt shield including a first member coupled to a blocking member, the blocking member movable between a blocking position over the mounting bolt in the bolt receptacle and a non-blocking position outside of the bolt receptacle, the first member disposed within the lock bolt recess and adapted to drive the blocking member from the blocking position to the non-blocking position as the lock bolt moves from the extended position to the retracted position. 17. The locking mechanism of claim 10, wherein the lock casing further comprises a mounting bolt receptacle, the lock bolt includes a recess, and the locking mechanism further comprises: a retracting bolt shield including a first member coupled to a blocking member, the blocking member movable between a blocking position over the mounting bolt in the bolt receptacle and a non-blocking position outside of the bolt receptacle, the first member disposed within the lock bolt recess and adapted to drive the blocking member from the blocking position to the non-blocking position as the lock bolt moves from the extended position to the retracted position. 18. A locking mechanism comprising: a lock bolt movable between extended and retracted positions;a bolt retraction member operatively coupled to the lock bolt and movable between engagement and disengagement positions;a manually-driven gear adapted to engage the bolt retraction member in the engagement position to allow a user to manually drive the lock bolt between the extended and retracted positions;a user input device adapted to receive user input information;a controller adapted to store authorization information and verify user input information; andan actuating assembly including an electric actuator operatively coupled to an output element, the output element having a projecting portion that enables movement of the bolt retraction member towards the engagement position when the controller verifies that the user input information matches the stored authorization information and, upon verification, energizes the electric actuator to rotate the output element;wherein the bolt retraction member is biased toward the projecting portion and the projecting portion engages the bolt retraction member and controls movement of the bolt retraction member between the engagement and disengagement positions. 19. The locking mechanism of claim 18 wherein the projecting portion is a pin. 20. The locking mechanism of claim 18 wherein the electric actuator is an electric motor. 21. A method of operating a lock including a user input device, a manually-driven gear, a bolt retraction member, a lock bolt adapted to engage with the bolt retraction member, an electric actuator with a rotatable output element, and a controller, the method comprising: recording user input information from the user input device;verifying that the user input information matches authorization information stored in the controller;energizing the electric actuator to rotate the output element;biasing the bolt retraction member toward a projecting portion of the output element;engaging the bolt retraction member with the projecting portion of the output element;controlling the movement of the bolt retraction member with the projecting portion such that the bolt retraction member moves from a disengagement position to an engagement position; anddriving the lock bolt to a retracted position by manually driving the gear and the bolt retraction member. 22. The method of claim 21 wherein the electric actuator is an electric motor. 23. The method of claim 21 wherein the projecting portion is a pin.
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