Electrical box assembly with mounting bracket

• US 5,408,045 A
• Filed: 12/23/1992
• Issued: 04/18/1995
• Est. Priority Date: 01/10/1992
• Status: Expired due to Term

• Current Assignee: Hubbell, Inc.
• Original Assignee: Hubbell, Inc.
• Inventors: Swanson, Richard D., Jorgensen, Robert W., Lewis, Thomas E.
• Primary Examiner(s): Picard, Leo P.
• Assistant Examiner(s): Tone, David
• Application Number:
  US07/995,820
• Time in Patent Office: 846 Days
• Field of Search: 174/48, 174/58, 220/3.9, 220/3.92, 248/228, 248/300, 248/906
• US Class Current: 174/58
• CPC Class Codes: H02G 3/126 with supporting means for mounting on a single wall stud

Abstract

An electrical box assembly including an electrical box and a mounting bracket rigidly coupled to the box for mounting the box onto a support member, such as a stud or a joist. The mounting bracket includes a base portion and a pair of leg portions resiliently coupled to the base portion to form a substantially U-shaped, three-sided bracket. The mounting bracket has inwardly extending arms for resiliently gripping the support member. The arms of the mounting bracket grip onto either side of a metal or wood support member to secure the electrical box to the support member and prevent relative movement between the electrical box and the support member. In one embodiment, the arms include teeth to improve the grip between the mounting bracket and a wood support member. In another embodiment, the mounting bracket is coupled to the box by clamping tabs.

Claims

1. An electrical box assembly adapted to be mounted to a support member, comprising:

an electrical housing;

a substantially U-shaped bracket for supporting said housing on the support member, said bracket including

a substantially flat base portion,

a first leg portion coupled substantially perpendicular to said base portion,

a second leg portion coupled substantially perpendicular to said base portion to form a space for receiving the support member between said first and second leg portions,

a pair of first arms coupled to opposite ends of said first leg portion with each of said first arms being bent about a fold line extending substantially perpendicular to said base portion so that said first arms extend inwardly into the space formed by said first and second leg portions for resiliently gripping the support member, and

a pair of second arms coupled to opposite ends of said second leg portion with each of said second arms being bent about a fold line extending substantially perpendicular to said base portion so that said second arms extend inwardly into the space formed by said first and second leg portions for resiliently gripping the support member; and

coupling means for rigidly coupling said bracket to said housing.

2. An electrical box assembly according to claim 1, wherein

said coupling means includes at least one weld between said bracket and said housing.

3. An electrical box assembly according to claim 2, wherein

said second leg portion includes a plurality of embosses for welding said second leg portion to said housing.

4. An electrical box assembly according to claim 1, wherein

said coupling means includes at least one rivet coupling said bracket to said housing.

5. An electrical box assembly according to claim 1, wherein

said second leg portion includes a main portion and an offset portion spaced outwardly from said main portion of said second leg portion.

6. An electrical box assembly according to claim 1, wherein

said base portion includes a hole for receiving a conventional fastener to fixedly secure said bracket to the support member.

7. An electrical box assembly according to claim 1, wherein

each of said arms includes an edge extending downwardly away from its respective said leg portion to form a wedge-shaped space between the plane of said base portion and said edge.

8. An electrical box assembly according to claim 1, wherein

each of said arms having a first arm portion extending outwardly from its respective said leg portion, a second arm portion angled inwardly from said first arm portion, and a third arm portion angled inwardly from said second arm portion.

9. An electrical box assembly according to claim 8, wherein

each of said third arm portions includes an outwardly extending wing.

10. An electrical box assembly according to claim 8, wherein

each of said inwardly angled arms and each of said third arm portions includes gripping teeth for engaging said supporting member.

11. An electrical box assembly according to claim 10, wherein

each of said arms includes an edge extending downwardly away from its respective said leg portion to form a wedge-shaped space between the plane of said base portion and said edge.

12. An electrical box assembly according to claim 1, wherein

said bracket means is formed from spring steel.

13. An electrical box assembly according to claim 1, wherein

each of said arms has an inwardly extending gripping tooth.

14. An electrical box assembly adapted to be mounted to a support member, comprising:

an electrical housing;

a substantially U-shaped bracket for supporting said housing on the support member, said bracket including

a substantially flat base portion,

a first leg portion coupled substantially perpendicular to said base portion,

a second leg portion coupled substantially perpendicular to said base portion to form a space for receiving the support member between said first and second leg portions,

a first pair of arms coupled to opposite ends of said first leg portion and angled inwardly into the space formed by said first and second leg portions for resiliently gripping the support member, and

a second pair of arms coupled to opposite ends of said second leg portion and angled inwardly into the space formed by said first and second leg portions for resiliently gripping the support member,

each of said inwardly angled arms including an outwardly extending wing and an edge extending downwardly away from its respective said leg portion to form a wedge-shaped space between the plane of said base portion and said edge; and

coupling means for rigidly coupling said bracket to said housing.

15. A mounting bracket assembly adapted to be coupled to an electrical box, comprising:

a substantially flat base portion;

a first leg portion coupled substantially perpendicular to said base portion;

a second leg portion coupled substantially perpendicular to said base portion to form a space for receiving a support member between said first and second leg portions;

a pair of first arms coupled to opposite ends of said first leg portion for resiliently gripping the support member with each of said first arms being bent about a fold line extending substantially perpendicular to said base portion so that said first arms extend inwardly toward said second leg portion;

a pair of second arms coupled to opposite ends of said second leg portion for resiliently gripping the support member with each of said second arms being bent about a fold line extending substantially perpendicular to said base portion so that said second arms extend inwardly toward said first leg portion; and

coupling means for rigidly coupling said bracket to an electrical box.

16. A mounting bracket assembly according to claim 15, wherein

said coupling means includes at least one clamping tab extending from said first leg portion to form a space between said clamping tab and said first leg portion for receiving a side wall of an electrical box therein.

17. A mounting bracket assembly according to claim 16, wherein

said base portion includes a hole for receiving a conventional fastener to fixedly secure said bracket to the support member.

18. A mounting bracket assembly according to claim 16, wherein

each of said arms includes an edge extending downwardly away from its respective said leg portion to form a wedge-shaped space between the plane of said base portion and said edge.

19. A mounting box assembly according to claim 15, wherein

each of said arms includes an edge extending downwardly away from its respective said leg portion to form a wedge-shaped space between the plane of said base portion and said edge.

20. A mounting bracket assembly according to claim 15, wherein

said second leg portion includes a main portion and an offset portion spaced outwardly from said main portion of said second leg portion.

21. A mounting bracket assembly according to claim 15, wherein

each of said first and second arms has an inwardly extending gripping tooth.

22. A mounting bracket assembly adapted to be coupled to an electrical box, comprising:

a substantially flat base portion;

a first leg portion coupled substantially perpendicular to said base portion;

a second leg portion coupled substantially perpendicular to said base portion to form a space for receiving a support member between said first and second leg portions;

a first pair of arms coupled to opposite ends of said first leg portion for resiliently gripping the support member with said first arms being angled inwardly toward said second leg portion;

a second pair of arms coupled to opposite ends of said second leg portion for resiliently gripping the support member with said second arms being angled inwardly toward said first leg portion, each of said inwardly angled arms including an outwardly extending wing and an edge extending downwardly away from its respective said leg portion to form a wedge-shaped space between the plane of said base portion and said edge; and

coupling means for rigidly coupling said bracket to an electrical, said coupling means including at least one clamping tab extending from said first leg portion to form a space between said clamping tab and said first leg portion for receiving a side wall of an electrical box therein.

23. A mounting bracket assembly adapted to be coupled to an electrical box and mounted on a support member, comprising:

a substantially flat base portion;

a first leg portion coupled substantially perpendicular to said base portion, said first leg portion having an inwardly facing surface with a first leg gripping portion lying in a first plane and an outwardly facing surface;

a second leg portion coupled substantially perpendicular to said base to form a space with said base portion and said first leg portion for receiving a support member between said first and second leg portions, said second leg portion having an inwardly facing surface and an outwardly facing surface;

a first arm coupled to one end of said first leg portion for forming a first gripping slot between said first arm and said one end of said first leg portion for resiliently gripping the support member, said first arm having a first arm gripping portion lying in a second plane and forming said first gripping slot between said first and second planes of said gripping portions to receive and grip a flange of the support member therein; and

coupling means for rigidly coupling said bracket to an electrical box.

24. A mounting bracket assembly according to claim 23, wherein

said first and second planes are spaced apart about one-sixty fourth of an inch to slightly crimp the flange of the support member received in said slot.

25. A mounting bracket assembly according to claim 23, wherein

said first leg portion further includes a second arm coupled to the other end of said first leg portion, said second arm has a second arm gripping portion lying in a third plane and forming a second gripping slot between said first and third planes to receive and grip the flange of support member therein.

26. A mounting bracket assembly according to claim 25, wherein

said second and third planes lie in the same plane.

27. A mounting bracket assembly according to claim 25, wherein

said inwardly facing surface of said second leg portion further includes a second leg gripping portion lying in a fourth plane, and a first arm coupled to one end of said second leg portion for resiliently gripping the support, said first arm of said second leg portion has a third arm gripping portion lying in a fifth plane and forming a third gripping slot between said fourth and fifth planes to selectively receive and grip the flange of the support member therein.

28. A mounting bracket assembly according to claim 27, wherein

said second leg portion further includes a second arm coupled to the other end of said second leg portion, said second arm of said second leg portion has a fourth arm gripping portion lying in a sixth plane and forming a fourth gripping slot between said fourth and sixth planes to selectively receive and grip the flange of the support member therein.

29. A mounting bracket assembly according to claim 28, wherein

said first and second arms of each of said leg portions extend inwardly therefrom.

30. A mounting bracket assembly according to claim 29, wherein each of said first and second arms of each of said leg portions includes an outwardly extending wing.

31. A mounting bracket assembly according to claim 28, wherein

said coupling means includes at least one clamping tab extending from said leg portion to form a space between said clamping tab and said first leg portion for receiving a side wall of an electrical box therein.

32. A mounting bracket assembly according to claim 28, wherein

said coupling means includes at least one hole formed in one of said leg portions for receiving a fastener to couple a side wall of an electrical box thereto.

33. A mounting bracket assembly according to claim 28, wherein

each of said first and second arms has an inwardly extending gripping tooth.

34. A mounting bracket assembly according to claim 23, wherein

said second leg portion includes a main portion and an offset portion spaced outwardly from said main portion of said second leg portion.

35. A mounting bracket assembly adapted to be coupled to an electrical box and mounted on a support member, comprising;

a substantially flat base portion with an inwardly facing surface lying in a first plane for contacting a surface of the support;

a first leg portion coupled substantially perpendicular to said base portion;

a second leg portion coupled substantially perpendicular to said base portion to form a space with said base portion and said first leg portion for receiving the support member between said first and second leg portions;

a first arm coupled to one end of said first leg portion for resiliently gripping the support member, said first arm having a gripping edge lying in a second plane to form a first wedge-shaped gripping slot between said first and second planes for receiving and gripping a flange of the support member;

a second arm coupled to the other end of said first leg portion for resiliently gripping the support member, said second arm having a gripping edge lying in a third plane for forming a second wedge-shaped gripping slot between said first and third planes to receive the flange of the support member therein; and

coupling means for rigidly coupling said bracket to an electrical box.

36. A mounting bracket assembly according to claim 35, wherein

said second leg portion further includes a first arm coupled to one end of said second leg portion for resiliently gripping the support member, said first arm of said second leg portion having a gripping portion lying in a fourth plane for forming a third slot between said first and fourth planes to selectively receive the flange of the support member therein.

37. A mounting bracket assembly according to claim 36, wherein

said gripping portion of said first arm of said second leg portion is formed by an edge extending downwardly away from said second leg portion so that said third slot is substantially wedge-shaped between said first and fourth planes.

38. A mounting bracket assembly according to claim 37, wherein

said second leg portion further includes a second arm coupled to the other end of said second leg portion for resiliently gripping the support member, said second arm of said second leg portion has a gripping portion lying in a fifth plane for forming a fourth slot between said first and fifth planes to selectively receive the flange of the support member therein.

39. A mounting bracket assembly according to claim 38, wherein

said gripping portion of said second arm of said second leg is formed by an edge extending downwardly away from said second leg portion so that said fourth slot is substantially wedge-shaped between said first and fifth planes.

40. A mounting bracket assembly according to claim 39, wherein

said first and second arms of each of said leg portions extend inwardly therefrom.

41. A mounting bracket assembly according to claim 39, wherein

said coupling means includes at least one clamping tab extending from said leg portion to form a space between said clamping tab and said first leg portion for receiving a side wall of an electrical box therein.

42. A mounting bracket assembly according to claim 39, wherein

said coupling means includes at least one hole formed in one of said leg portions for receiving a fastener to couple a side wall of an electrical box thereto.

43. A mounting bracket assembly according to claim 39, wherein

each of said first and second arms has an inwardly extending gripping tooth.

44. A mounting bracket assembly according to claim 39, wherein

said second leg portion includes a main portion and an offset portion spaced outwardly from said main portion of said second leg portion.

45. A mounting bracket assembly adapted to be coupled to an electrical box and mounted on a support member, comprising;

a substantially flat base portion with an inwardly facing surface lying in a first plane for contacting a surface of the support;

a first leg portion coupled substantially perpendicular to said base portion;

a second leg portion coupled substantially perpendicular to said base portion to form a space with said base portion and said first leg portion for receiving the support member between said first and second leg portions;

a first arm coupled to one end of said first leg portion for resiliently gripping the support member, said first arm having a gripping portion lying in a second plane to form a first slot between said first and second planes for receiving and gripping a flange of the support member;

a second arm coupled to the other end of said first leg portion for resiliently gripping the support member, said second arm having a gripping portion lying in a third plane for forming a second slot between said first and third planes to receive the flange of the support member therein, said gripping portion of said second arm being formed by an edge extending downwardly away from said first leg portion so that said second slot is substantially wedge-shaped between said first and third planes;

a third arm coupled to one end of said second leg portion for resiliently gripping the support member, said third arm of said second leg portion having a gripping portion lying in a fourth plane for forming a third slot between said first and fourth planes to selectively received the flange of the support member therein, said gripping portion of said third arm of said second leg portion being formed by an edge extending downwardly away from said second leg portion so that said third slot is substantially wedge-shaped between said first and fourth planes;

a fourth arm coupled to the other end of said second leg portion for resiliently gripping the support member, said fourth arm of said second leg portion having a gripping portion lying in a fifth plane for forming a fourth slot between said first and fifth planes to selectively receive the flange of the support member therein, said gripping portion of said fourth arm of said second leg being formed by an edge extending downwardly away from said second leg portion so that said fourth slot is substantially wedge-shaped between said first and fifth planes;

said first, second, third and fourth arms of each of said leg portions extending inwardly therefrom and each of said first, second, third and fourth arms of each of said leg portions including an outwardly extending wing; and

coupling means for rigidly coupling said bracket to an electrical box.