| 摘要 |
PURPOSE: Reinforcing structure at overturn of a bus is provided to improve safety by protecting passengers with preventing accidents in overturning the bus, and to enhance appearance without increasing the number of pillars. CONSTITUTION: A reinforcing system for a bus is composed of an upper impact bar(1) and a lower impact bar(3) inserted to a B-pillar(112); a cross bar connecting upper ends of the upper impact bar; and a collision energy absorbing unit formed in the connecting portion of the upper impact bar and the lower impact bar. A fragile part is formed in the connecting portion of upper and lower impact bars. Collision energy is absorbed by breaking the fragile part with welding the side of the fragile part, and passengers are protected by restricting transmission of impact.
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