| 摘要 |
The invention relates to a system of reinforcing the doors of shell structure vehicles. The inventive reinforcement system can be used to reduce the thickness of the external door panel, while maintaining sufficient stiffness and retaining maximum passenger safety. According to the invention, the system essentially comprises a central stiffener (20) in the form of a substantially-quadrilateral, somewhat-curved plate. The end parts (22, 24) of the central stiffener (20) are solidly fixed to the shell (1) of the vehicle or to the side reinforcements (10, 30) that are connected thereto, while the central part (26) is adjacent to the external panel, preferably at the passenger seats.
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