Patent ID: 8789872

Claim:
Beam in a vehicle door, wherein the beam extends between the front and rear vertical structures of the door and is welded thereto, the door beam having a section comprising at least one flattened attachment end and comprising grooves extending from the at least one flattened attachment end and flat surfaces ( 18 , 19 ) between the grooves ( 22 , 23 , 24 ) with spot welds to attach the at least one flattened attachment end to a structure on the vehicle door, wherein the at least one flattened attachment end comprises at least three said grooves ( 22 , 23 , 24 ) defining through channels to the structure ( 12 ) on the vehicle door, each said flat surface ( 18 , 19 ) between the at least three grooves comprises only one spot weld ( 27 , 28 ) and each said flat surface has a width of 10-35 mm at the spot weld and that the at least one flattened attachment end of the door beam and the structure on the vehicle door is rustproofed by immersion of the door beam and the vehicle door in a bath of anti-corrosive paint after the door beam is attached to the structure on the vehicle door to reduce the risk of crevice corrosion.