Patent ID: 6250037
Filing Date: 2001-06-26
Classification: B21C,B23K

Abstract:
A structural body, comprising:a first member having two substantially parallel first face plates and plural first ribs for connecting said two first face plates; anda second member having two substantially parallel second face plates and plural second ribs for connecting said two second face plates; whereinsaid first member and said second member are joined by two joining beads;one of said two joining beads joins one of said two first face plates of said first member and one of said two second face plates of said second member;the other of said two joining beads joins the other of said two first face plates of said first member and the other of said two second face plates of said second member; and whereinan inner corner between a first rib of said first member in the vicinity of said one of said two joining beads and a rear face of said one of said two first face plates of said first member at a position of a first hollow portion of said first member is in the form of a first convex circular arc which protrudes into said first hollow portion of said first member.