Stud snap & lock non-metallic electrical box

• US 20060272841A1
• Filed: 06/06/2006
• Published: 12/07/2006
• Est. Priority Date: 06/07/2005
• Status: Active Grant

• Current Assignee: Thomas & Betts International LLC (ABB Limited)
• Original Assignee: Thomas & Betts International Incorporated (ABB Limited)
• Inventors: Dinh, Cong Thanh
• Granted Patent: US 7,179,995 B2
• Time in Patent Office: Days
• US Class Current: 174/58
• CPC Class Codes: H02G 3/126 with supporting means for mounting on a single wall stud
• CPC Class Codes: Y10S 248/906 Electrical outlet box support

Abstract

The invention pertains to an electrical box assembly having a support structure for use in securing electrical enclosures, housings or boxes or the like to a stud. Upon insertion of the stud into a stud-receiving cavity of the assembly, a movable tab is pivoted to press one or more prongs into engagement with the stud. Pivoting of the tab may continue until the tab is locked in place whereupon the electrical enclosure is secured to the stud in compliance with code requirements without the need for such secondary operations as driving a separate fastener into the stud; the box now being secured with sufficient rigidity to satisfy local code enforcement.

Claims

1. An electrical box assembly for mounting to a stud comprising:

an electrical enclosure;

a bracket affixed to said enclosure, said bracket defining at least a portion of a stud-receiving cavity extending along an edge of said enclosure; and

a tab pivotally connected to said bracket and movable between a stud-receiving position wherein said tab is pivoted away from said cavity and a stud-securing position wherein said tab is pivoted toward said cavity such that said tab is substantially coplanar with the edge of said stud, and wherein said tab includes at least one prong that extends into said stud-receiving cavity for engaging said stud.

2. The electrical box assembly of claim 1, wherein said tab pivotally connected to said bracket comprises a hinge for pivoting said tab with respect to said bracket.

3. The electrical box assembly of claim 1, wherein said tab comprises a locking member for locking said tab in said stud-securing position.

4. The electrical box assembly of claim 1, further comprising at least one flange extending generally orthogonal to a planar surface of said bracket and forming a perimeter portion of said stud-receiving cavity.

5. The electrical box assembly of claim 4, further comprising at least one stiffener between said planar surface and said at least one flange to resist deflection of said flange with respect to said planar surface upon movement of said tab between said stud-receiving position and said stud-securing position.

6. The electrical box assembly of claim 4, further comprising a pair of flanges extending generally orthogonal to said planar surface of said bracket and generally parallel to each other forming said stud-receiving cavity

7. The electrical box assembly of claim 6, further comprising at least one tooth extending from one of said pair of flanges into said stud-receiving cavity opposite said at least one prong.

8. The electrical box assembly of claim 1, further comprising a drywall support extending from said enclosure opposite said bracket.

9. The electrical box assembly of claim 1, further comprising an alignment guide for guiding said stud into said stud-receiving cavity.

10. The electrical box assembly of claim 1, wherein said electrical enclosure comprises at least one of a single gang electrical outlet box, a multiple gang electrical outlet box or a low voltage outlet frame.

11. A support structure for mounting of an electrical enclosure to a stud comprising:

a bracket extending from a first surface of an electrical enclosure, the bracket having a first generally planar surface;

a flange extending from said bracket, said flange having a generally planar surface defining a portion of a stud receiving cavity; and

a tab pivotally connected to said bracket and movable between a stud-receiving position wherein said tab is pivoted away from said cavity and a stud-securing position wherein said tab is pivoted toward said cavity such that said tab is substantially coplanar with the edge of said stud, and wherein said tab includes at least one prong that extends into said stud-receiving cavity for engaging said stud.

12. The support structure of claim 11, wherein said tab pivotally connected to said bracket is configured with a hinge for pivoting said tab with respect to said bracket.

13. The support structure of claim 11, wherein said tab is further configured with a locking member for locking said tab in said stud-securing position.

14. The support structure of claim 11, further comprising a second flange extending generally orthogonal to a planar surface of said bracket and forming said stud-receiving cavity.

15. The support structure of claim 14, further comprising at least one stiffener between said planar surface and said second flange to resist deflection of said flange with respect to said planar surface upon movement of said tab between said stud-receiving position and said stud-securing position.

16. The support structure of claim 14, wherein said flange and said second flange extend generally orthogonal to said planar surface of said bracket and generally parallel to each other forming the stud-receiving cavity

17. The support structure of claim 16, further comprising at least one tooth extending from one of said flange and said second flange into said stud-receiving cavity opposite said at least one prong.

18. The support structure of claim 11, further comprising a drywall support extending from said enclosure opposite said bracket.

19. The support structure of claim 11, further comprising an alignment guide for guiding said stud into said stud-receiving cavity.

20. The support structure of claim 11, wherein said electrical enclosure comprises at least one of a single gang electrical outlet box, a multiple gang electrical outlet box or a low voltage outlet frame.