Joint and method of forming the same

• US 4,740,098 A
• Filed: 04/01/1986
• Issued: 04/26/1988
• Est. Priority Date: 08/02/1984
• Status: Expired due to Fees

• Current Assignee: Brian D. Witt
• Original Assignee: Brian D. Witt
• Inventors: Witt, Brian D.
• Primary Examiner(s): Reese, Randolph A.
• Assistant Examiner(s): Cuomo, Peter M.
• Application Number:
  US06/852,952
• Time in Patent Office: 756 Days
• Field of Search: 403/403, 403/231, 403/232.1, 403/405.1, 403/406.1, 403/381, 403/168, 403/186, 403/315, 403/402, 403/205, 403/382, 403/187, 52/656
• US Class Current: 403/205
• CPC Class Codes: E06B 3/984 specially adapted for frame members of wood or other material worked in a similar way E06B3/99 takes precedence
• CPC Class Codes: F16B 12/46 Non-metal corner connections
• CPC Class Codes: F16B 2200/67 Rigid angle couplings
• CPC Class Codes: Y10S 403/12 Furniture type having a rotatable fastener or fastening element that tightens connection
• CPC Class Codes: Y10T 403/4602 Corner joint

Abstract

A joint for joining two elongate members transversely to each other, comprising a first member, second member, right angle bracket and threaded bolt. The bracket is fixed to the first member and projects from the end face which is to be accommodated within a complementary recess provided on the second member. A transverse hole is provided in the recess extending between opposite side faces of the member, and axially registers with a threaded hole in the end projection of the bracket and a groove in a longitudinal recess on the first member. The bolt clampingly engages the second member to the bracket with the bolt shank further engaging the surfaces of the hole, groove and the terminal end of a protrusion of the bracket. The projection and the recess operate to oppose rotational movement of the first member about its longitudinal axis relative to the second member.

Claims

1. A joint for joining first and second elongate members to each other in opposed relation said first member having an end face;

said second member having a pair of generally opposed side faces, said end face of said first member being in abutting relation with one of said side faces of said second member;

a bracket means having a pair of flange portions disposed in angular relation to each other; and

a fixing means;

said bracket means being fixedly mounted to said end face such that one flange portion extends substantially parallel to a longitudinal axis of said first member and in juxtaposition therewith, and the other flange portion projects in part outwardly from the general plane of said end face;

said one side face being formed with a preformed recess extending longitudinally along said side face and being complementary to and receiving the projecting part of said other flange portion;

said first member being buttingly joined to said one side face of said second member by said fixing means clampingly engaging said second member to said other flange portion, the engagement between said other flange portion and said recess opposing rotational movement of said bracket and of said first member about its longitudinal axis relative to said second member.

2. A joint as claimed in claim 1, wherein the projecting part of said other flange portion is rectangular in end cross-section.

3. A joint as claimed in claim 1, wherein the projecting part of said other flange is convexly curved in end cross-section thereof only.

4. A joint as claimed in claim 1, wherein the fixing means comprises a threaded bolt having a head and shank portion, said second member being provided with a transverse hole extending between said opposed side faces, and the other flange portion being provided with a threaded hole registering with said transverse hole, said fixing means being received within said holes with said head portion engaging the other side face and said shank portion threadedly engaging said other flange portion for clamping the members together.

5. A joint as claimed in claim 4, wherein said first member is provided with a longitudinal recess on one side face thereof extending transversely to the other flange portion, said longitudinal recess defining a void inwardly of said threaded hole to accommodate any extension of said shank portion of the threaded bolt.

6. A joint as claimed in claim 5, wherein said longitudinal recess is provided by a longitudinal groove axially aligned with said threaded hole, the width of said groove being complementary to the diameter of said threaded hole to provide a further engaging surface to said extended shank portion.

7. A joint as claimed in claim 5, wherein the distal end of said other flange portion terminates adjacent the recess.

8. A joint as claimed in claim 5, wherein the common end of said bracket means is disposed adjacent the recess.

9. A joint as claimed in claim 5, wherein said longitudinal recess extends substantially the entire length of said first member.

10. A joint as claimed in claim 6, wherein said bracket means is provided with an inwardly directed protrusion on the face of said one flange portion facing said first member and extending within said groove so locating the bracket means relative to the first member.

11. A joint as claimed in claim 10, wherein said protrusion partially extends within said groove and forms an outer side closure to the same adjacent said threaded hole to provide another engaging surface to said extended shank portion.

12. A joint as claimed in claim 1, wherein the joint includes cover means to conceal said bracket means.

13. A joint as claimed in claim 12, wherein said cover means is a lath insertable within a longitudinal recess formed in a side of said first member into which said one flange portion extends.

14. A joint as claimed in claim 1, wherein the members are of generally the same cross-sectional shape.

15. A joint as claimed in claim 1, wherein said bracket means is formed of material having both sufficient compressive and tensile strength characteristics to resist rotational movement of said joint.

16. A joint as claimed in claim 1, wherein the first member is provided with a recess in a side face thereof opposing the first flange portion of the bracket means, said first flange portion extending into said recess of said first member and cooperating therewith to oppose rotational movement of said bracket and of said first member relative to said second member.

17. A joint as claimed in claim 16, wherein the recess in the first member is formed with a groove at the base thereof, said one flange portion having an inwardly extending ridge received within said groove.

18. A bracket for joining two elongated members comprising a pair of angularly related integrally connected flange portions each adapated to be positioned in a butting relationship with a respective end and side face of one of said members, and an inwardly extending ridge formed on one of said flange portions and adapted to engage a groove in the one of the members for resisting rotation of said bracket relative to the one member, and an internally threaded hole in the other of the flange portions adapted to receive a fastening means.