Patent ID: 8739491

Claim:
A thin-walled cold formed lightweight sectional element having an elongated section body ( 2 ) in which a plurality of openings ( 5 ) are formed, wherein the section body ( 2 ) includes at least two separately formed longitudinal portions ( 10 , 11 ); wherein each longitudinal portion ( 10 , 11 ) includes a meandering longitudinal edge ( 12 , 13 ); wherein the longitudinal portions each include an elongated portion ( 16 , 17 ) as well as a plurality of connection portions ( 14 , 15 , 23 , 24 , 37 , 38 , 45 , 46 , 47 , 48 ) which project laterally beyond the elongated portion ( 16 , 17 ) and which are bordered by the meandering longitudinal edge ( 12 , 13 ); wherein the connection portions ( 14 , 23 , 37 , 45 , 47 ) of the one longitudinal portion ( 10 ) face the connection portions ( 15 , 24 , 38 , 46 , 48 ) of the other longitudinal portion ( 11 ) and are welded to them end-to-end in each case or are connected to one another along bent-over abutment edges ( 56 ); wherein the openings ( 5 ) are bordered at least regionally by portions of the meandering longitudinal edges ( 12 , 13 ); wherein stiffening beads ( 31 ) extending in the longitudinal direction of the longitudinal portions ( 10 , 11 ) as well as stiffening beads ( 30 ) extending transverse thereto are formed in the longitudinal portions ( 10 , 11 ); wherein the transverse extending stiffening beads ( 30 ) are in communication with the stiffening beads ( 31 ) extending in the longitudinal direction; and wherein the transverse extending stiffening beads ( 30 ) extend into the connection portions ( 14 , 15 , 23 , 24 , 37 , 38 , 45 , 46 , 47 , 48 ) and beyond the weld seams between the connection portions ( 14 , 15 , 23 , 24 , 37 , 38 , 45 , 46 , 47 , 48 ).