Three-sided corner assembly

A connector for interconnecting a first frame member, a second frame member and corner, each of the first and second frame members extending along a corresponding axis and including an outer surface having a slot therein and a cavity communicating with the slot and the corner having a first sidewall perpendicular to the axis of the first frame member and configured to abut a terminal end of the first frame member, a second sidewall perpendicular to the first sidewall and to the axis of the second frame member and configured to abut a terminal end of the second frame member, and a mounting wall having a slot therein extending along an axis perpendicular to the axes of the first and second frame members, the connector comprising:

• a first plate member having an inner face, an opposite outer face having a mounting rail projecting therefrom which is receivable in the slot in the first frame member, and a bolt-receiving bore extending therethrough along a first axis at an acute angle to the outer face of the first plate member;
• a second plate member having an inner face, an opposite outer face having a mounting rail projecting therefrom which is receivable in the slot in a second frame member, the second plate member including a bolt-receiving bore therethrough extending along a second axis at an acute angle to the outer face of the second plate member;
• and
• a central portion interconnecting the first and second plate members and having a mounting surface, an arcuate surface having a first edge adjacent inner face of first plate member and a second edge adjacent the inner face of the second plate member, and a bore extending therethrough, the mounting surface including an alignment rail projecting therefrom which is receivable in the slot in the corner.

A frame assembly, comprising:

• first and second frame members, each of the first and second frame members extending along a corresponding axis and including an outer surface having a slot therein and a cavity communicating with the slot;
• a corner having a first sidewall perpendicular to the axis of the first frame member and configured to abut a terminal end of the first frame member, a second sidewall perpendicular to the first sidewall and to the axis of the second frame member and configured to abut a terminal end of the second frame member, a mounting wall having a slot therein extending along an axis perpendicular to the axes of the first and second frame members, and a cavity communicating with the slot in the corner;
• a first plate member having an inner face, an opposite outer face having a mounting rail projecting therefrom which is receivable in the slot in the first frame member, and a bolt-receiving bore extending therethrough along a first axis at an acute angle to the outer face of the first plate member;
• a second plate member having an inner face, an opposite outer face having a mounting rail projecting therefrom which is receivable in the slot in the second frame member, the second plate member including a bolt-receiving bore therethrough extending along a second axis at an acute angle to the outer face of the second plate member;
• a central portion interconnecting the first and second plate members and having a mounting surface, an arcuate surface having a first edge adjacent inner face of first plate member and a second edge adjacent the inner face of the second plate member, and a bore extending therethrough, the mounting surface including an alignment rail projecting therefrom which is receivable in the slot in the corner;
• a corner nut receivable in the cavity of the corner;
• a corner bolt extending angularly through the bore in the central portion and engaging the corner nut so to interconnect the central portion to the corner;
• a first nut receivable in the cavity of the first frame member;
• a first bolt extending angularly through the bolt-receiving bore in the first plate member and engaging the first nut received in the cavity of the first frame member to interconnect the first plate member to first frame member;
• a second nut receivable in the cavity of the second frame member;
• and
• a second bolt extending angularly through the bolt-receiving bore in the second plate member and engaging the second nut received in the cavity of the second frame member to interconnect the second plate member to second frame member.