Extruded arc structures for use with nodes

Abstract

A metal extrusion and nodes based structure is provided. The structure comprises one or more arc members connected by one or more node members, wherein the arc comprises (i) a wing feature which is configured to mate with one or more non-structural components, (ii) an internal passage feature which is configured to be inserted into a connecting feature of the corresponding node member, and (iii) one or more keying features formed from a mating interface with the corresponding node member.

1 . A structure comprising:
 a metal extrusion including a first structure and a second structure, the metal extrusion having a length, wherein   the first structure includes an elongated cavity along the length of the metal extrusion, and   the second structure includes an elongated surface along the length of the metal extrusion, the elongated surface being arranged away from the first structure and overlapping at least a portion of the first structure, the first and second structures being connected along the length of the metal extrusion.   
     
     
         2 . The structure of  claim 1 , wherein the elongated cavity includes a first longitudinal edge and a second longitudinal edge, the first and second longitudinal edges defining an opening in a wall of the elongated cavity, the opening running along a length of the elongated cavity, the metal extrusion further including
 a support structure that connects the first and second longitudinal edges to the second structure.   
     
     
         3 . The structure of  claim 2 , wherein the elongated cavity includes a cylindrical tube. 
     
     
         4 . The structure of  claim 2 , wherein the second structure is a plate, and the plate is directly connected to the support structure. 
     
     
         5 . The structure of  claim 2 , wherein the support structure is configured to deform in response to a bending of at least the first structure or the second structure, such that the deformation of the support structure relieves a mechanical stress within the extruded structure that results from the bending. 
     
     
         6 . The structure of  claim 1 , wherein a shape of a cross-section of the elongated cavity includes a concave shape such that the elongated cavity has first and second longitudinal edges running along a length of the elongated cavity, and the first and second edges are connected to the second structure. 
     
     
         7 . The structure of  claim 6 , wherein the second structure is a plate, and the plate is directly connected to the first and second edges of the elongated cavity. 
     
     
         8 . The structure of  claim 1 , wherein at least the first structure or the second structure is deformed such that a shape of a first cross-section of the metal extrusion at a first location along a length of the metal extrusion is different than a shape of a second cross-section of the metal extrusion at a second location along the length of the metal extrusion. 
     
     
         9 . The structure of  claim 1 , wherein the first structure is deformed in a first direction, and the second structure is deformed in a second direction different than the first direction. 
     
     
         10 . The structure of  claim 9 , wherein the first direction is a direction that is transverse to the length of the metal extrusion, and the second direction is a direction of rotation around a direction parallel to a length of the elongated cavity.