Vehicle door has supporting ring-shaped frame of highly strong steel nearest to outer panels, frame being pressed out of flat plate, so that side crash protection beam is formed in same pressing operation

摘要

The vehicle door has a supporting ring-shaped frame (12-19) of highly strong steel nearest to outer panels. The frame is pressed out of flat plate, so that a side crash protection beam (20) is formed in the same pressing operation. The frame and the side crash protection beam have hat-shaped cross-sections. Reinforcement plates couple together the frame outer and inner flanges and give the frame a closed cross-section, with the side crash protection beam connections to the ring-shaped frame itself. The ring-shaped frame outer side flange supports the door outer panel and the other parts of the door and the door other parts are screwed firmly to the inside of the frame.