Brackets for mounting electrical wiring boxes to supporting structures

• US 3,977,640 A
• Filed: 10/14/1975
• Issued: 08/31/1976
• Est. Priority Date: 10/14/1975
• Status: Expired due to Term

• Current Assignee: Challenger Electrical Marterials Incorporated
• Original Assignee: Union Insulating Company
• Inventors: Arnold, William O., Mills, Gene F.
• Primary Examiner(s): Foss, J. Franklin
• Application Number:
  US05/621,677
• Time in Patent Office: 322 Days
• Field of Search: 248/205 R, 248/228, 248/229, 248/DIG. 6, 248/226 E, 52/758 M, 52/DIG. 1, 220/3.9, 174/58
• US Class Current: 248/542
• CPC Class Codes: F16B 2/241 of sheet metal
• CPC Class Codes: H02G 3/125 with supporting bar extending between two separate studs of a wall frame
• CPC Class Codes: H02G 3/126 with supporting means for mounting on a single wall stud

Abstract

Metal mounting brackets for mounting electrical wiring boxes to studs. A metal mounting bracket in accordance with a first embodiment of the invention is basically Z-shaped and includes a first flat portion adapted to be attached to an electrical wiring box, a second flat portion generally normal to the first portion and including a pair of generally U-shaped stud-embracing members, and a third flat portion generally normal to the second portion and having a pair of spaced, initially-flat pair of tabs extending outwardly from an edge thereof, each of the tabs having a pair of stud-biting teeth extending therefrom. The third portion further has a pair of tool-receiving openings therein, each adjacent to a corresponding one of the tabs and arranged to receive a standard adjustable plier. In mounting a wiring box to a stud, for example, to a metal stud, the U-shaped members of the second portion of the bracket are first arranged by an installer to embrace a first corner region of the stud. The installer then uses the adjustable plier to bend the tabs associated with the third portion around a second curved corner region of the stud and to cause the teeth associated with the tabs to bite into the second corner region of the stud, thereby securely mounting the bracket and the attached wiring box to the stud.

A metal mounting bracket in accordance with a second embodiment of the invention is similar to the abovedescribed first embodiment but does not have stud-biting teeth associated with the tabs.

Claims

1. A mounting bracket for mounting a box to a metal supporting structure and adapted to be attached to the supporting structure, said supporting structure having a first corner region and a second corner region adjacent to the first corner region, said mounting bracket comprising:

a first portion adapted to be attached to a box and including embracing means generally conforming to the configuration of the first corner region of the supporting structure and adapted to embrace said first corner region in preparation for attaching the mounting bracket to the supporting structure; and

a second portion connected with the first portion and adapted to be positioned against the supporting structure between the first and second corner regions of the supporting structure in preparation for attaching the mounting bracket to the supporting structure, said second portion including deformable means capable of being deformed by a tool and arranged initially to extend past the second corner region of the supporting structure and, when deformed, to conform generally to the configuration of and embrace the second corner region of the supporting structure, and said second portion further having a tool-receiving opening therein adjacent to the deformable means, said tool-receiving opening being adapted to receive a tool whereby said tool may be used to deform the deformable means of the second portion to cause the deformable means to conform to and to embrace the second corner region of the supporting structure whereby the mounting bracket is caused to be attached to the supporting structure.

2. A mounting bracket in accordance with claim 1 wherein:

the second portion of the mounting bracket has a tool-receiving surface at the tool receiving-opening; and

the deformable means also has a tool-receiving surface;

the tool-receiving surface at the tool-receiving opening and the tool receiving surface of the deformable means being jointly used by a tool for deforming the deformable means to cause the deformable means to conform generally to the configuration of and embrace the second corner region of the supporting structure.

3. A mounting bracket in accordance with claim 2 wherein:

the first and second corner regions of the supporting structure are generally U-shaped;

the embracing means includes a generally U-shaped member; and

the deformable means includes an initially-flat deformable tab having an outer, tool-receiving surface.

4. A mounting bracket in accordance with claim 1 further comprising:

teeth means connected with the deformable means and adapted to bite into the second corner region of the supporting structure when the deformable means is caused to embrace the second corner region of the supporting structure.

5. A mounting bracket in accordance with claim 4 wherein:

the first and second corner regions of the supporting structure are generally U-shaped;

the embracing means includes a generally U-shaped member;

the deformable means includes an initially-flat deformable tab having an outer, tool-receiving surface; and

the teeth means includes teeth connected with and extending from the deformable tab.

6. A mounting bracket for mounting a box to a metal supporting structure and adapted to be attached to the supporting structure, said supporting structure having a first corner region and a second corner region adjacent to the first corner region, said mounting bracket comprising:

a first portion adapted to be attached to a box and including embracing means generally conforming to the configuration of the first corner region of the supporting structure and adapted to embrace said first corner region in preparation for attaching the mounting bracket to the supporting structure; and

a second portion connected with the first portion and adapted to be positioned against the supporting structure between the first and second corner regions of the supporting structure in preparation for attaching the mounting bracket to the supporting structure, said second portion including first and second deformable means capable of being deformed by a tool and arranged initially to extend past the second corner region of the supporting structure and, when deformed, to conform generally to the configuration of and embrace the second corner region of the supporting structure, and said second portion further having first and second tool-receiving openings therein adjacent to the first and second deformable means, respectively, said tool-receiving openings being adapted to receive a tool whereby said tool may be used to deform the first and second deformable means to cause the first and second deformable means to conform to and embrace the second corner region of the supporting structure whereby the mounting bracket is caused to be attached to the supporting structure.

7. A mounting bracket in accordance with claim 6 wherein:

the second portion of the mounting bracket has first and second tool-receiving surfaces at the first and second tool-receiving openings, respectively; and

the first and second deformable means also have first and second tool-receiving surfaces, respectively;

the first and second tool-receiving surfaces at the first and second tool-receiving openings and the first and second tool-receiving surfaces of the first and second deformable means being used by a tool for deforming the first and second deformable means to conform generally to the configuration of and embrace the second corner region of the supporting structure.

8. A mounting bracket in accordance with claim 7 wherein:

the first and second corner regions of the supporting structure are generally U-shaped;

the embracing means includes first and second generally U-shaped members; and

each of the first and second deformable means includes an initially-flat deformable tab having an outer, tool-receiving surface.

9. A mounting bracket in accordance with claim 6 further comprising:

teeth means connected with the first and second deformable means and adapted to bite into the second corner region of the supporting structure when the first and second deformable means are caused to embrace the second corner region of the supporting structure.

10. A mounting bracket in accordance with claim 9 wherein:

the first and second corner regions of the supporting structure are generally U-shaped;

the embracing means includes first and second generally U-shaped members;

each of the first and second deformable means includes an initially-flat deformable tab having an outer, tool-receiving surface; and

the teeth means includes teeth connected with and extending from the deformable tabs.

11. A mounting bracket for mounting a box to a wood supporting structure and adapted to be attached to the wood supporting structure, said wood supporting structure having a first corner region and a second corner region adjacent to the first corner region, said mounting bracket comprising:

a first portion adapted to be attached to a box and including tip means adapted to be positioned against the first corner region of the supporting structure in preparation for attaching the mounting bracket to the supporting structure and capable of penetrating for essentially its entire length into the supporting structure; and

a second portion connected with the first portion and adapted to be positioned against the supporting structure between the first and second corner regions of the supporting structure in preparation for attaching the mounting bracket to the supporting structure, said second portion including deformable means and teeth means connected with the deformable means, said deformable means being arranged initially to extend past the second corner region of the supporting structure and being capable of being deformed by a tool and said teeth means being capable of penetrating the supporting structure at the second corner region thereof for essentially its entire length when the deformable means has been deformed by the tool, and said second portion further having a tool-receiving opening therein adjacent to the deformable means, said tool-receiving opening being adapted to receive a tool whereby said tool may be used to deform simultaneously the deformable means of the second portion of the mounting bracket so as to cause the teeth means to penetrate into the supporting structure at the second corner region thereof and to cause the tip means of the first portion of the mounting bracket to penetrate into the supporting structure at the first corner region thereof, thereby to attach the mounting bracket to the supporting structure.

12. A mounting bracket in accordance with claim 11 wherein:

the second portion of the mounting bracket has a tool-receiving surface at the tool-receiving opening; and

the deformable means also has a tool-receiving surface;

the tool-receiving surface at the tool-receiving opening and the tool receiving surface of the deformable means being used by a tool for simultaneously deforming the deformable means of the second portion of the mounting bracket so as to cause the teeth means to penetrate into the supporting structure at the second corner region thereof and to cause the tip means of the first portion of the mounting bracket to penetrate into the supporting structure at the second corner region thereof.

13. A mounting bracket in accordance with claim 12 wherein:

the deformable means includes an initially-flat deformable tab having an outer, tool-receiving surface; and

the teeth means includes teeth connected with and extending from the deformable tab.

14. A mounting bracket in accordance with claim 13 wherein:

the second portion of the mounting bracket further has an additional opening therein for receiving a fastener to be driven into the supporting structure.