Dual locking system for integrated zipper lock

• US 8,661,861 B2
• Filed: 07/20/2012
• Issued: 03/04/2014
• Est. Priority Date: 08/08/2011
• Status: Active Grant

• Current Assignee: The Sun Lock Company Ltd.
• Original Assignee: The Sun Lock Company Ltd.
• Inventors: Lai, Karl
• Primary Examiner(s): BOSWELL, CHRISTOPHER J
• Application Number:
  US13/554,299
• Publication Number:
  US 20130036778A1
• Time in Patent Office: 592 Days
• Field of Search: 70/21, 70 68- 72, 70/74, 702/84, 702/85, 70D/IG.63, 70D/IG.71
• US Class Current: 70/21
• CPC Class Codes: E05B 35/10 with master and pass keys for cylinder locks E05B27/0053
• CPC Class Codes: E05B 35/105 Locks allowing opening by official authorities, e.g. master key opening of luggage locks by customs officials
• CPC Class Codes: E05B 37/0034 actuated by either
• CPC Class Codes: E05B 37/0058 by axial disengagement between hub and rim of tumbler discs or rings
• CPC Class Codes: E05B 37/12 with tumbler discs on several axes
• CPC Class Codes: E05B 65/52 Other locks for chests, boxes, trunks, baskets, travelling bags, or the like
• CPC Class Codes: Y10T 70/415 Combination and/or key-controlled
• CPC Class Codes: Y10T 70/5031 Receptacle
• CPC Class Codes: Y10T 70/5053 Interengageable slide fastener type
• CPC Class Codes: Y10T 70/5066 Bolt type
• CPC Class Codes: Y10T 70/7141 Combination and key
• CPC Class Codes: Y10T 70/7147 Combination or key

Abstract

The present invention is directed to a zipper lock that includes an actuator operatively connected to an actuation plate and a blocking plate positioned relative to the actuation plate so as to at least partially block the movement of the actuation plate when the zipper lock is in the locked configuration. The actuator and the actuation plate are configured for interaction so as to transform movement of the actuator into movement of the actuation plate when the zipper lock is in an unlocked configuration. The zipper lock further includes a latch control plate operatively connected to the actuator, and operatively connected to a latch, in which the latch includes a locking finger configured for locking engagement with at least one locking head that is configured to retain a zipper pull tab to the zipper lock when the zipper lock is in a locked configuration.

Claims

1. A lock, comprising:

a latch movable between a first position and a second position;

a first locking mechanism operatively coupled to the latch;

a second locking mechanism operatively coupled to the latch; and

at least one locking head operatively coupled to the first locking mechanism and the second locking mechanism, wherein the at least one locking head is positionable between a closed position and an open position and configured for positioning in the open position when the latch is in the second position;

a control plate operatively coupled to the latch and configured for movement in a direction substantially perpendicular to the movement of the latch; and

at least one blocking plate operatively coupled to each of the at least one locking head;

wherein the at least one blocking plate is movable in a direction substantially perpendicular to the movement of the at least one locking head between a retained position and an ejected position;

wherein the first locking mechanism and the second locking mechanism are each configured to independently cause the movement of the control plate in the direction substantially perpendicular to the movement of the latch, and wherein such movement of the control plate is configured to move the latch into the second position and to move the at least one locking head into the open position; and

wherein

wherein the at least one locking head comprises a locking area formed within the at least one locking head and positioned to surround at least a portion of the latch when the latch is in the first position so as to maintain the at least one locking head in the closed position.

2. The lock according to claim 1, wherein the latch comprises a substantially cylindrical extension;

wherein the substantially cylindrical extension comprises the portion of the latch surrounded by the locking area of the at least one locking head; and

wherein the lock further comprises a latch spring operatively coupled to the latch and configured to urge the latch into the first position, and a locking head spring for each locking head of the at least one locking head configured to urge the at least one locking head into the closed position.

3. The lock according to claim 2, wherein the first locking mechanism comprises a lock cylinder, a locking cam operatively coupled to the lock cylinder, and a finger extending from the locking cam and operatively coupled to the control plate.

4. The lock according to claim 3, wherein the first locking mechanism is operative between a locked position and an unlocked position;

wherein when the first locking mechanism is in the locked position the finger is spaced away from the control plate, and when the first locking mechanism is in the unlocked position the finger is configured for positioning in operative engagement with the control plate; and

wherein when the first locking mechanism is in the unlocked position the latch is movable to the second position and the at least one locking head is positionable in the open position.

5. The lock according to claim 4, wherein in the unlocked position of the first locking mechanism the finger is configured to operatively engage with the control plate to cause rectilinear movement of the control plate towards the latch;

and

wherein the rectilinear movement of the control plate is configured to move the latch in a direction substantially perpendicular to the rectilinear movement of the control plate in order to move the latch into the second position and thereby disengage the cylindrical extension of the latch from the locking area of the at least one locking head.

6. The lock according to claim 5, wherein in the unlocked position of the first locking mechanism the finger is further configured to operatively engage with the control plate to cause further rectilinear movement of the control plate towards the at least one locking head;

wherein the further rectilinear movement of the control plate is configured to move the at least one locking head into the open position.

7. The lock according to claim 4, wherein the first locking mechanism is configured for operation between the locked position and the unlocked position through the use of a tool.

8. The lock according to claim 7, wherein the tool comprises a key.

9. The lock according to claim 3, wherein the control plate is configured to transfer angular movement of the finger to rectilinear movement of the at least one locking head in order to move the at least one locking head into the open position.

10. The lock according to claim 2, wherein the second locking mechanism comprises an actuator operatively coupled to the control plate, a locking plate operatively coupled to the actuator, and at least one rotatable clutch configured to restrict movement of the locking plate.

11. The lock according to claim 10, wherein the locking plate is movable between a locked position and an unlocked position;

and

wherein the second locking mechanism further comprises a locking plate spring configured to urge the locking plate into the unlocked position.

12. The lock according to claim 11, wherein the locking plate comprises at least one opening formed therein, and each opening of the at least one opening comprises a protrusion extending into the opening;

wherein each opening of the at least one opening has one of the at least one rotatable clutch positioned therein;

wherein each rotatable clutch of the at least one rotatable clutch comprises a notch formed therein and configured to receive the protrusion;

wherein when the notch and the protrusion are substantially aligned the locking plate spring is configured to urge the locking plate into the unlocked position; and

wherein when the notch and the protrusion are not substantially aligned the at least one rotatable clutch is configured hold the locking plate in the locked position.

13. The lock according to claim 12, wherein the second locking mechanism further comprises an actuation plate operatively coupled to the actuator and movable between a blocking position and an actuated position, and an actuation plate spring configured to urge the actuation plate into the blocking position;

wherein the locking plate further comprises a tail extending therefrom and configured to operatively engage with the actuation plate when the locking plate is in the locked position and have a spaced apart relationship with the actuation plate when the locking plate is in the unlocked position; and

wherein the tail is configured to substantially retain the actuation plate in the blocking position when the tail is operatively engaged with the actuation plate.

14. The lock according to claim 13, wherein in the unlocked position of the locking plate the actuator is configured to move the actuation plate into the actuated position and to operatively engage with the control plate to cause rectilinear movement of the control plate towards the latch;

and

wherein the rectilinear movement of the control plate is configured to move the latch in a direction substantially perpendicular to the rectilinear movement of the control plate in order to move the latch into the second position and thereby disengage the cylindrical extension of the latch from the locking area of the at least one locking head.

15. The lock according to claim 14, wherein in the unlocked position of the locking plate the actuator is further configured to operatively engage with the control plate to cause further rectilinear movement of the control plate towards the at least one locking head;

wherein the further rectilinear movement of the control plate is configured to move the at least one locking head into the open position.

16. The lock according to claim 10, wherein each of the at least one rotatable clutch is operatively connected to a dial comprising a substantially circular surface having indicia thereon.

17. The lock according to claim 10, wherein the actuator comprises a button.

18. The lock according to claim 1, wherein the lock further comprises a blocking plate spring for each of the at least one blocking plate configured to urge the at least one blocking plate into the ejected position.

19. The lock according to claim 1, wherein the at least one blocking plate comprises a wall formed on an edge of the at least one blocking plate;

wherein the wall is configured to hold the at least one locking head in the open position when the at least one blocking plate is in the ejected position.

20. The lock according to claim 1, wherein the lock is configured to securely retain at least one zipper pull tab of a zipper, wherein the at least one zipper pull tab comprises an opening formed therein;

wherein the at least one locking head comprises a locking protrusion extending therefrom, and dimensioned for insertion into the opening of the at least one zipper pull tab;

wherein the at least one blocking plate comprises a retaining wall extending therefrom, and positioned on the at least one blocking plate for operative engagement with the locking protrusion when the at least one locking head is in the closed position in order to securely retain the at least one zipper pull tab to the lock.