Burglarproof device for electronic device

Patent metadata

Field	Value
Publication number	US-8991225-B2
Application number	US-201313970121-A
Country	US
Kind code	B2
Filing date	Aug 19, 2013
Priority date	Aug 20, 2012
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

A burglarproof device for electronic device including a fastener, a control unit, and a lock core is provided. The fastener includes a plurality of lever arms surrounding a virtual axis. The control unit moves relative to the fastener and drives ends of the lever arms to move toward each other when approaching the fastener; the ends of the lever arms move away from each other when the control unit leaves the fastener. The lock core in an unlocked status permits the movement of the control unit relative to the fastener while the lock core in a locked status restricts the control unit from moving relative to the fastener.

First claim

What is claimed is:

1. A burglarproof device for electronic device, comprising:
a fastener comprising a plurality of lever arms surrounding a virtual axis;
a control unit moving relative to the fastener and driving ends of the lever arms to move toward each other when the control unit approaching the fastener; the ends of the lever arms moving away from each other when the control unit leaving the fastener; and
a lock core, wherein when the lock core is unlocked, the control unit is allowed to move relative to the fastener, and when the lock core is locked, the control unit is restricted from moving relative to the fastener.

2. The burglarproof device of claim 1 , wherein each of the lever arms has a pivot, an effort arm beside the pivot, and a resistance arm beside the pivot and opposite to the effort arm; the pivots are disposed close to each other and surround the virtual axis.

3. The burglarproof device of claim 2 , wherein the effort arm, the pivot, and the resistance arm constitute the lever arm having a V shape.

4. The burglarproof device of claim 2 , wherein the control unit is next to the effort arm of the fastener and includes a guiding surface, the guiding surface pushes against the effort arms to move toward each other when the control unit approaches the fastener.

5. The burglarproof device of claim 4 , wherein the effort arm has a free end away from the pivot; the resistance arm has a front end away from the pivot; the burglarproof device further comprises an elastic member disposed among the effort arms; the elastic member applies force to the effort arms so that the free ends are distant from each other; the elastic member is compressed and deformed when the effort arms move toward each other.

6. The burglarproof device of claim 5 , wherein a projection is formed on an outer side of the front end, an end of the projection constitutes a hook portion.

7. The burglarproof device of claim 4 , wherein the control unit includes a connecting portion and a controlling portion; the guiding surface is located at the controlling portion; the controlling portion includes a structure selected from the group consisting of a wedge block and a tube; the guiding surface is selected from the group consisting of an oblique plane and an inner wall of a funnel.

8. The burglarproof device of claim 7 , wherein a plurality of wedge blocks correspond to the effort arms, respectively; each of the wedge blocks has an oblique plane as the guiding surface.

9. The burglarproof device of claim 7 , wherein one end of the tube is connected to the effort arms; an inner wall of the tube at the one end is formed as the inner wall of the funnel, drawn close in a direction away from the fastener, and serves as the guiding surface.

10. The burglarproof device of claim 7 , wherein the connecting portion connects the controlling portion and the lock core.

11. The burglarproof device of claim 7 , wherein the connecting portion is a shaft of the lock core and participating in an unlocking operation and a locking operation of the lock core.

12. The burglarproof device of claim 2 , further comprising a housing, wherein the control unit, the lock core, and at least a portion of the fastener are received in the housing; at least a portion of the resistance arms protrudes out of the housing.

13. A burglarproof device for electronic device, comprising:
a fastener comprising a plurality of lever arms surrounding a virtual axis;
a control unit moving relative to the fastener and having a guiding surface, wherein the guiding surface guides ends of the lever arms to move along the guiding surface and move toward each other when the control unit approaches the fastener; the ends of the lever arms move away from each other when the control unit leaves the fastener; and
a lock core, wherein a locking operation of the lock core drives the control unit to approach the fastener, an unlocking operation of the lock core drives the control unit to leave the fastener.

14. The burglarproof device of claim 13 , wherein the control unit is connected to the lock core; the lock core moves during the locking operation and the unlocking operation and drives the control unit to move relative to the fastener.

15. The burglarproof device of claim 13 , wherein the control unit includes a shaft participating in the unlocking operation and the locking operation; the unlocking operation drives the shaft to move along an axis and away from the fastener, the locking operation drives the shaft to move along the axis and toward the fastener; the axis is substantially parallel to the virtual axis.

16. A burglarproof device for electronic device, comprising:
a fastener comprising a plurality of lever arms surrounding a virtual axis;
a control unit moving relative to the fastener and having a guiding surface, wherein the guiding surface guides ends of the lever arms to move along the guiding surface and move toward each other when the control unit approaches the fastener; the ends of the lever arms move away from each other when the control unit leaves the fastener;
an operating device driving the control unit to move relative to the fastener; and
a lock core, wherein when the lock core is unlocked, the operating device is operable, and when the lock core is locked, the operating device is restricted.

17. The burglarproof device of claim 16 , wherein each of the lever arms has a pivot, an effort arm beside the pivot, and a resistance arm beside the pivot and opposite to the effort arm; the pivots are disposed close to each other and surround the virtual axis.

18. The burglarproof device of claim 17 , wherein the control unit includes a connecting portion, a controlling portion, and a driven portion; the driven portion interacts with the operating device.

19. The burglarproof device of claim 18 , wherein the operating device contacts with the driven portion and drives the control unit to leave the fastener; the control unit gathers the effort arms and let the resistance arms be departed from each other, wherein the control unit moving away from the fastener enables the effort arms to move away from each other and the resistance arms to move toward each other.

20. The burglarproof device of claim 19 , wherein the effort arm has a free end away from the pivot, the resistance arm has a front end away from the pivot; the burglarproof device further comprises an elastic member disposed among the effort arms; the elastic member applies force to the effort arms so that the free ends are distant from each other; the elastic member is compressed and deformed when the effort arms move toward each other.

21. The burglarproof device of claim 18 , wherein the operating device has a driving portion, the driving portion includes a wedge block; the driven portion is a slot formed in the control unit, the slot corresponds to the driving portion and receives at least a portion of the driving portion.

22. The burglarproof device of claim 21 , wherein pressing the operating device drives the driving portion to push against a wall of the slot and pushes the control unit to leave the fastener.

23. The burglarproof device of claim 18 , wherein the controlling portion has a tubular structure; one end of the tubular structure is connected to the effort arms; an inner wall of the tubular structure at the one end is formed as an inner wall of a funnel, drawn close in a direction away from the fastener, and serves as the guiding surface; the tubular struct

Assignees

• Sinox Co Ltd
• Sinox Co Ltd

Inventors

• Wu Chia-Ming
• Wu Chun-Sheng

Classifications

• Y10T70/40

  Portable · CPC title

• Y10T70/5009

  For portable articles · CPC title

• Y10T70/409

  Shackles · CPC title

• E05B37/02

  with tumbler discs or rings arranged on a single axis, each disc being adjustable independently of the others · CPC title

• E05B73/0005

  using chains, cables or the like (chain- or cable-locks of the padlock type E05B67/003; lockable clothing hangers or hanger racks E05B69/006) · CPC title