Padlocks for holding and securing zipper pulls

• US 8,096,150 B2
• Filed: 10/05/2007
• Issued: 01/17/2012
• Est. Priority Date: 10/16/2006
• Status: Active Grant

• Current Assignee: The Sun Lock Company Ltd.
• Original Assignee: The Sun Lock Company Ltd.
• Inventors: Lai, Eric, Lai, Karl
• Primary Examiner(s): GALL, LLOYD A
• Application Number:
  US11/973,169
• Publication Number:
  US 20080087049A1
• Time in Patent Office: 1,565 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: A44B 19/301 at the end of their upward travel with any suitable device, e.g. pull member combined with a press-button, a hook, a key-operated lock
• 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 70/424 Sliding
• 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

By providing two separate and independent locking system formed in a single padlock construction which is employed for securely holding and locking zipper pull tabs, an effective, easily produced, padlock is achieved which is responsive to both a combination controlled locking system and a key controlled locking system for independently enabling the zipper pull tabs to be released and/or lockingly engaged in response to the activation of either locking system. In the present invention, an easily assembled, compact, highly efficient dual mode, zipper pull locking system is achieved by employing a pair of spring biased locking latch members which are constructed for being inserted in the apertures formed in each of the conventional zipper pulls/tabs employed on luggage, briefcases, and the like.

Claims

1. A dual-mode padlock system constructed for locking two cooperating zipper pull tabs to a product upon which a zipper assembly is mounted, said system comprising:

A. a housing incorporating a key controlled locking assembly and a combination controlled locking assembly, each being mounted in the housing for locking and unlocking operation independently of each other;

B. a first zipper pull tab receiving zone and a second zipper pull tab receiving zone formed in the housing in cooperating relationship with each other and constructed for enabling each zipper pull tab to be independently positioned in one of said receiving zones for locking interengagement therein;

C. a first latching member positioned in cooperating relationship with the first zipper pull tab receiving zone and constructed for being movable between locking interengagement with a first zipper pull tab and unlocking release of said first zipper pull tab;

D. a second latching member positioned in cooperating relationship with the second zipper pull tab receiving zone and constructed for being movable between locking interengagement with a second zipper pull tab and unlocking release of said second zipper pull tab;

E. a control plate mounted in the housing for movement therein in response to the activation of the key controlled locking assembly or the combination controlled locking assembly and constructed for causing the first latching member and the second latching member to become disengaged from the zipper pull tabs associated therewith whenever activated; and

F. said combination controlled locking assembly being further defined as comprising;

a) a plurality of dials mounted to the housing with each of said dials having a plurality of separate indicia bearing zones formed thereon,

b) each of the dials also incorporating a receiving slot formed therein, and mounted in substantially side-to-side relationship with each other for rotational movement about cooperating, parallel axes

c) a locking plate incorporating a substantially flat plate and cooperatively associated with the plurality of dials and incorporating a plurality of flanges formed thereon and positioned for sliding interengagement into the slots of each of the dials when the dials are in the desired, predetermined position,

d) said locking plate being further defined as comprising a blocking member associated therewith and positioned for movement relative to the control plate, thereby blocking the movement of the control plate whenever the locking plate is incapable of movement in the housing and enabling movement of the control plate whenever the locking plate is able to move into engagement in the slots of the dials when the dials are in the desired, predetermined position,

e) an activating member formed on a slider plate for movement therewith and positioned for cooperating with the control plate for enabling the control plate to be moved in the housing for causing the first latching member and the second latching member to become disengaged from the zipper pull tabs associated therewith whenever the dials are in the desired, predetermined position, and

f) said blocking member being further defined as being mounted between the locking plate and the control plate, movable between a blocking position and a released position, and comprising one selected from the group consisting of a steel ball, a cylindrical rod, a metal roller, and a pin;

whereby a padlock system is achieved which securely affixes the two cooperating zipper pull tabs mounted to the product and enables the zipper pull tabs to be released in response to the activation of either the combination controlled locking assembly or the key controlled locking assembly.

2. The dual-mode padlock system defined in claim 1, wherein the control plate is constructed for enabling the simultaneous removal of the first latching member and the second latching member from engagement with the first zipper pull tab and the second zipper pull tab whenever either the key controlled locking assembly or the combination controlled locking assembly is properly activated.

3. The dual-mode padlock system defined in claim 2, wherein said control plate is responsive to the movement of an activation button or plate for simultaneously disengaging the first and second latching members from the first and second zipper pull tabs.

4. The dual-mode padlock system defined in claim 1, wherein the first latching member comprises a first flange mounted thereto and constructed for controlled sliding engagement and disengagement in an aperture formed in the first zipper pull tab for locking and releasing the first zipper pull tab from locked interengagement in the first zipper pull tab receiving zone of the housing, and the second latching member comprises a second flange mounted thereto and constructed for controlled sliding engagement and disengagement in an aperture formed in the second zipper pull tab for locking and releasing the second zipper pull tab from locked interengagement in the second zipper pull tab receiving zone of the housing.

5. The dual-mode padlock system defined in claim 4, wherein the first latching member and the second latching member are spring-biased for being normally maintained in locked engagement with the first zipper pull tab and the second zipper pull tab.

6. The dual-mode padlock system defined in claim 1, wherein the key controlled locking assembly is further defined as comprising:

a) a cylinder assembly mounted in the housing and incorporating a key receiving slot cooperatively associated with a plurality of tumblers for preventing the rotation movement of said cylinder assembly whenever the designated key member is not present and enabling the rotational movement of the cylinder assembly in response to the insertion of the designated key member in the slot,

b) at least one flange mounted to a terminating end of said cylinder assembly and positioned in cooperating, movement controlling relationship with the control plate for causing the control plate to move relative to the housing whenever the cylinder assembly is rotated in response to the presence of the designated key member in the key receiving slot, said movement allowing the first latching member and the second latching member to become disengaged from the first zipper pull tab and the second zipper pull tab, and

c) said cylinder assembly being constructed for enabling the designated key member to be removed from the key receiving slot when the first latching member and the second latching member are disengaged from the first zipper pull tab and the second zipper pull tab as well as when the first latching member and the second latching member are engaged with the first zipper pull tab and the second zipper pull tab.

7. The dual-mode padlock system defined in claim 1, wherein said locking plate is further defined as being engaged with the control plate for causing the movement of the control plate relative to the housing whenever the dials are in the desired, predetermined position.

8. The dual-mode padlock system defined in claim 1, wherein activation of either the key controlled locking assembly or the combination controlled locking assembly causes the control plate to be moved in a first direction relative to the housing, thereby causing the control plate to be moved from its first position to its second position and allowing the first latching member and second latching member to move in a second direction perpendicular to said first direction.

9. A dual-mode padlock system constructed for locking two cooperating zipper pull tabs to a product upon which a zipper assembly is mounted, said system comprising:

A. a housing incorporating a key controlled locking assembly and a combination controlled locking assembly, each being mounted in the housing for locking and unlocking operation independently of each other;

B. a first zipper pull tab receiving zone and a second zipper pull tab receiving zone formed in the housing in cooperating relationship with each other and constructed for enabling each zipper pull tab to be independently positioned in one of said receiving zones for locking interengagement therein;

C. a first latching member positioned in cooperating relationship with the first zipper pull tab receiving zone and constructed for being movable between locking interengagement with a first zipper pull tab and unlocking release of said first zipper pull tab;

D. a second latching member positioned in cooperating relationship with the second zipper pull tab receiving zone and constructed for being movable between locking interengagement with a second zipper pull tab and unlocking release of said second zipper pull tab; and

E. a control plate mounted in the housing for movement therein in response to the activation of the key controlled locking assembly or the combination controlled locking assembly and constructed for allowing the first latching member and the second latching member to become disengaged from the zipper pull tabs associated therewith whenever activated, wherein activation of either the key controlled locking assembly or the combination controlled locking assembly causes the control plate to be moved in a first direction relative to the housing, thereby causing the control plate to be moved from its first position to its second position and allowing the first latching member and second latching member to move in a second direction perpendicular to said first direction;

F. a first blocking plate cooperatively associated with the first zipper pull tab receiving zone for movement therein, and constructed

a) for automatic movement from a disengaged position with the first latching member when said first latching member is engaged with the first zipper pull tab, into an engaged position with the first latching member whenever the first zipper pull tab is removed therefrom; and

b) also constructed for enabling the first latching member to automatically return into engagement with the first zipper pull tab whenever the first zipper pull tab is inserted into the first zipper pull tab receiving zone for dislodging the first blocking plate, and

G. a second blocking plate cooperatively associated with the second zipper pull tab receiving zone for movement therein, and constructed

a) for automatic movement from a disengaged position with the second latching member whenever said second latching member is engaged with the second zipper pull tab, into an engaged position with the second latching member whenever the second zipper pull tab is removed therefrom; and

b) also constructed for enabling the second latching member to automatically return into engagement with the second zipper pull tab whenever the second zipper pull tab is inserted into the second zipper pull tab receiving zone for dislodging the second blocking plate;

whereby the first latching member and the second latching member are maintained in an open position whenever the first zipper pull tab and the second zipper pull tab are disengaged therefrom, and remain in the open position until the first zipper pull tab and the second zipper pull tab are reinserted for locked interengagement therewith.

10. The dual-mode padlock system defined in claim 9, wherein said first blocking plate and said second blocking plate each comprise a side edge constructed for abutting contact with a side edge of the latching member for providing the desired holding engagement of the first latching member and the second latching member in a disengaged position when the first zipper pull tab and the second zipper pull tab are disengaged therefrom.

11. The dual-mode padlock system defined in claim 10, wherein said first blocking plate and said second blocking plate are each further defined as comprising an upstanding flange or ridge mounted thereto and incorporating an abutment surface positioned for direct, contacting engagement with the side edge of the associated latching member for providing a secondary contact surface for engaging the side edge of the latching member whenever the side edge of the latching member is disengaged from the side edge of the blocking plate.

12. A dual-mode padlock system constructed for locking two cooperating zipper pull tabs to a product upon which a zipper assembly is mounted, said system comprising:

A. a housing incorporating a key controlled locking assembly and a combination controlled locking assembly, each being mounted in the housing for locking and unlocking operation independently of each other;

B. a first zipper pull tab receiving zone and a second zipper pull tab receiving zone formed in the housing in cooperating relationship with each other and constructed for enabling each zipper pull tab to be independently positioned in one of said receiving zones for locking interengagement therein;

C. a first latching member positioned in cooperating relationship with the first zipper pull tab receiving zone and constructed for being movable between locking interengagement with a first zipper pull tab and unlocking release of said first zipper pull tab;

D. a second latching member positioned in cooperating relationship with the second zipper pull tab receiving zone and constructed for being movable between locking interengagement with a second zipper pull tab and unlocking release of said second zipper pull tab; and

E. a control plate mounted in the housing for movement therein between a first blocking position and a second release position in response to the activation of the key controlled locking assembly or the combination controlled locking assembly and constructed for enabling the first latching member and the second latching member to become disengaged from the zipper pull tabs associated therewith whenever activated, said control plate being further defined as comprising;

a) a first post member cooperatively associated with the first latching member and a second post member cooperatively associated with the second latching member, said first post member and said second post member being in juxtaposed, spaced relationship with each other,

b) said first post member being positioned for blocking the movement of the first latching member whenever the control plate is in its first blocking position, and the second post member being positioned for blocking the movement of the second latching member whenever the control plate is in its first blocking position,

c) said first post member being removed from blocking the first latching member whenever the control plate is in its second release position, and the second post member being removed from blocking the second latching member whenever the control plate is in its second release position, thereby enabling the first latching member to be movable relative to the first zipper pull tab receiving zone and enabling the second latching member to be movable relative to the second zipper pull tab receiving zone, and

wherein activation of either the key controlled locking assembly or the combination controlled locking assembly causes the control plate to be moved in a first direction relative to the housing, thereby causing the control plate to be moved from its first position to its second position and allowing the first latching member and second latching member to move in a second direction perpendicular to said first direction.

13. The dual-mode padlock system defined in claim 12, wherein the control plate comprises a sloping surface formed on the control plate and positioned for cooperating association with a cam surface formed on a slider plate which causes the control plate to move from its first position to its second position whenever the slider plate is activated.

14. The dual-mode padlock system defined in claim 13, wherein said control plate further comprises a wall cooperatively associated with the key controlled locking assembly, with said wall being constructed for lateral movement in response to rotational activation movement of said key controlled locking assembly, thereby causing the control plate to move from its first blocking position into its second release position.

15. The dual-mode padlock system defined in claim 12, wherein the control plate is responsive to the movement of an activation button or plate, and the movement of the combination controlled locking assembly enables the activation button or plate to be released for use.