Patent ID: 7231745

Claim:
A truss structure comprising an upper chord member, a lower chord member, a diagonal chord member connected to a parent plate, and a connection part formed on an end of each of said chord members, wherein said upper chord member, said lower chord member and said diagonal chord member each comprise a pipe member; and said connection part comprises a tubular section and a flat section formed integral and continuously with said tubular section extending from and integral with each said pipe member said flat section having a width determined by the diameter of the pipe member; wherein said connection part is connected to said parent plate via a bolt passing through a bolt opening formed in said flat section, and an edge portion of the tubular section defining a semi-circular boundary with said flat section and said flat section includes a transitional slack portion at both ends of the semi-circular boundary and said parent plate includes a rib erected crosswise thereon, and an edge of said flat section is tapered to allow for each flat section of each chord member to be positioned in close proximity to said parent plate.