Vehicle door beam

Details Vehicle door beam Vehicle door beam

B - Operations, Transporting

60

R

B60R 19/42 (2006.01) B60J 5/00 (2006.01) B60J 5/04 (2006.01)

Patent

CA 2308669

A door beam is provided for attachment to front and rear parts of a vehicle doorframe for imparting improved impact strength to the vehicle door. The door beam includes a tubular beam and end-mounted brackets attached to ends of the tubular beam by cold welding, MIG welding and/or a combination thereof. The tubular beam includes outer and inner wall sections that have an arcuate cross-sectional shape, and top and bottom wall sections that connect the outer and inner wall sections but that are not arcuately shaped. The top and bottom wall sections include flat portions and curvilinear connecting portions that cause the cross-section of the tubular beam to be extended in a predetermined direction. The unique cross-sectional shape of the tubular beam allows the door beam to fit into a well-defined envelope of space within the door without interfering with other components in the door and further provides the door beam with excellent energy absorption and crashworthiness properties for withstanding side impact. The cold welding process helps eliminate twist and dimensional distortion of the door beam during attachment of the brackets to the tubular beam.

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