Merchandise security device including strain relief block

• US 9,111,428 B2
• Filed: 03/13/2013
• Issued: 08/18/2015
• Est. Priority Date: 03/13/2012
• Status: Active Grant

• Current Assignee: InVue Security Products Incorporated
• Original Assignee: InVue Security Products Incorporated
• Inventors: Fawcett, Christopher J., Taylor, Gary Andrew, Hartweg, Robert O.
• Primary Examiner(s): Tweel, Jr., John A
• Application Number:
  US13/800,000
• Publication Number:
  US 20130241731A1
• Time in Patent Office: 888 Days
• Field of Search: 340/568.2, 340/568.3, 340/568.4
• US Class Current: 1/1
• CPC Class Codes: G08B 13/1445 with detection of interference with a cable tethering an article, e.g. alarm activated by detecting detachment of article, breaking or stretching of cable furniture, e.g. shelves for displaying merchandise, incorporating tethers to prevent theft A47F7/024, A47F5/0861
• CPC Class Codes: G08B 13/1454 Circuit arrangements thereof
• CPC Class Codes: G08B 13/1463 Physical arrangements, e.g. housings devices to prevent theft or loss of purses, luggage or hand carried bags A45C13/18
• CPC Class Codes: H01R 13/5812 the cable clamping being achieved by mounting the separate part on the housing of the coupling device
• CPC Class Codes: H02G 15/007 Devices for relieving mechanical stress

Abstract

A merchandise security device for displaying an electronic item of merchandise includes a strain relief block configured for attachment to the merchandise and an alarming power cable configured for being electrically coupled to a power input port provided on the merchandise. The alarming power cable is routed through the strain relief block for reducing strain applied to the alarming power cable, which may prevent damaging the power input port or the portion of the alarming power cable extending between the strain relief block and the power input port.

Claims

1. A merchandise security device for displaying and protecting an item of merchandise from theft, comprising:

a cable having a connector at one end configured to engage a connector port provided on the item of merchandise; and

a strain relief block configured for attachment to a surface of the item of merchandise, the strain relief block comprising a housing defining at least one channel formed therein for routing a portion of the cable through the strain relief block and to the connector port of the item of merchandise for reducing strain applied to the cable.

2. A merchandise security device according to claim 1, wherein the cable is a power cable, and wherein the item of merchandise is a battery-operated, electronic item of merchandise and the connector port is a power input port provided on the electronic item of merchandise.

3. A merchandise security device according to claim 2, wherein the power cable comprises a plurality of conductors contained within a protective sheath, and wherein at least a pair of the conductors carry an electrical power signal between an external source of electrical power and the power input port provided on the electronic item of merchandise.

4. A merchandise security device according to claim 3, further comprising a mounting member having a housing configured to be secured to a support surface.

5. A merchandise security device according to claim 4, wherein the power cable comprises at least a first section extending between the external source of electrical power and the mounting member and at least a second section extending between the mounting member and the power input port provided on the electronic item of merchandise.

6. A merchandise security device according to claim 3, wherein the power cable is an alarming power cable, and wherein at least one of the conductors carries a security signal.

7. A merchandise security device according to claim 6, further comprising an alarm module, and wherein the alarm module comprises a housing containing alarm electronics for monitoring the security signal and for activating an alarm in the event that the security signal between the power input port and the alarm module is interrupted.

8. A merchandise security device according to claim 7, wherein the alarming power cable comprises at least a first section extending between the external source of electrical power and the alarm module and at least a second section extending between the alarm module and the power input port provided on the electronic item of merchandise.

9. A merchandise security device according to claim 1, wherein the housing of the strain relief block comprises at least one non-linear channel for routing the cable therethrough.

10. A merchandise security device according to claim 9, wherein the housing comprises a sidewall having at least one pair of openings formed therein for receiving the cable to route the cable through the at least one non-linear channel of the strain relief block.

11. A merchandise security device according to claim 10, wherein the sidewall has a first pair of openings formed therein for receiving the cable to route the cable through the strain relief block and a second pair of openings formed therein for receiving the cable to route the cable through the strain relief block.

12. A merchandise security device according to claim 11, wherein the first pair of openings receive and route the cable through a first non-linear channel formed in the housing such that the cable enters the strain relief block and exits the strain relief block in the same direction.

13. A merchandise security device according to claim 12, where the second pair of openings receive and route the cable through a second non-linear channel formed in the housing such that the cable enters the strain relief block and exits the strain relief block in opposite directions.

14. A merchandise security device according to claim 13, wherein the first non-linear channel and the second non-linear channel are defined by a plurality of non-linear ribs formed in the housing of the strain relief block.

15. A merchandise security device according to claim 1, wherein the strain relief block further comprises a cover movably attached to the housing and a security fastener for securing the cover on the housing.

22. A merchandise security device according to claim 1, wherein the portion of the cable extends entirely through the strain relief block.

23. A merchandise security device according to claim 1, wherein a length of the cable between the connector and the strain relief block is adjustable based on a location of the cable routed through the strain relief block.

16. A strain relief block for attachment to an item of merchandise being displayed by a merchandise security device and for relieving stress induced by strain applied to a cable coupled to the item of merchandise, the strain relief block comprising:

a housing having a sidewall and defining an interior compartment, the interior compartment having at least one channel formed therein for routing the cable through the housing, and the sidewall having at least one pair of openings formed therein for receiving the cable to route the cable through the channel formed in the housing for reducing strain applied to the cable.

17. A strain relief block according to claim 16, wherein the sidewall has a first pair of openings formed therein for receiving the cable to route the cable through a first non-linear channel formed in the housing and a second pair of openings formed therein for receiving the cable to route the cable through a second non-linear channel formed in the housing.

18. A strain relief block according to claim 17, wherein the first pair of openings receive and route the cable through the first non-linear channel formed in the housing such that the cable enters the housing and exits the housing in the same direction.

19. A strain relief block according to claim 17, where the second pair of openings receive and route the cable through the second non-linear channel formed in the housing such that the cable enters the housing and exits the housing in opposite directions.

20. A strain relief block according to claim 17, wherein the first non-linear channel and the second non-linear channel are defined by a plurality of non-linear ribs formed in the housing.

21. A merchandise security device for displaying and protecting an electronic item of merchandise, comprising:

a strain relief block configured for attachment to a surface of the electronic item of merchandise;

an alarming power cable routed through the strain relief block and extending between an external source of electrical power and the electronic item of merchandise; and

an alarm module disposed along the alarming power cable between the external source of electrical power and the strain relief block;

wherein the alarming power cable comprises a plurality of conductors, at least one of the conductors carrying an electrical power signal between the external source of electrical power and the electronic item of merchandise and at least one of the conductors carrying a security signal between the electronic item of merchandise and the alarm module; and

wherein the strain relief block comprises a housing having a sidewall and defining an interior compartment, the sidewall having at least a pair of openings for receiving the alarming power cable to route the alarming power cable through a channel formed in the interior compartment of the housing for reducing strain applied to the alarming power cable.

24. A merchandise security device according to claim 21, wherein the cable enters one of the pair of openings and exits through the other of the pair of openings.