Cross member for a motor vehicle sub-frame

Abstract

A cross member for a motor vehicle sub-frame includes (a) a hollow body having an extrusion axis and (b) a wall having a first edge and a second edge. The wall is positioned inside and extends across the hollow body with the first edge and the second edge joined to the hollow body.

What is claimed: 
     
         1 . A cross member for a motor vehicle sub-frame, comprising:
 a hollow body having an extrusion axis; and   a wall having a first edge and a second edge, said wall being positioned inside and extending across said hollow body with said first edge and said second edge joined to said hollow body.   
     
     
         2 . The cross member of  claim 1 , wherein said wall has a longitudinal axis that extends parallel to said extrusion axis. 
     
     
         3 . The cross member of  claim 2 , wherein said wall is planar. 
     
     
         4 . The cross member of  claim 3 , wherein said hollow body includes an attachment point and said wall is aligned with said attachment point. 
     
     
         5 . The cross member of  claim 4 , further including a cylindrical reinforcement in said hollow body around said attachment point. 
     
     
         6 . The cross member of  claim 5 , wherein said wall extends radially outwardly from said cylindrical reinforcement but does not cross said attachment point defined within said cylindrical reinforcement. 
     
     
         7 . The cross member of  claim 1 , wherein said wall is planar. 
     
     
         8 . The cross member of  claim 7 , wherein said hollow body includes an attachment point and said wall is aligned with said attachment point. 
     
     
         9 . The cross member of  claim 8 , further including a cylindrical reinforcement in said hollow body around said attachment point. 
     
     
         10 . The cross member of  claim 9 , wherein said wall extends radially outwardly from said cylindrical reinforcement but does not cross said attachment point defined within said cylindrical reinforcement. 
     
     
         11 . The cross member of  claim 1 , wherein said hollow body includes an attachment point and said wall is aligned with said attachment point. 
     
     
         12 . The cross member of  claim 11 , further including a cylindrical reinforcement in said hollow body around said attachment point. 
     
     
         13 . The cross member of  claim 12 , wherein said wall extends radially outwardly from said cylindrical reinforcement but does not cross said attachment point defined within said cylindrical reinforcement.