purpose; Impact to absorb impact energy when the automobile side collision to the closed space caused combines the frame side outer panel and a rear pillar inner panel is combined with the rear side door outer constituting the car of the side mounting the gangseongyong pads and reinforcing Reinforced treatment for of the vehicle in the strength to protect the safety of the occupant on board the car by preventing from being transmitted to the vehicle body side impact applications for the back to provide a pillar portion gangseongbo steel.; Configuration; In the rear-door outer 10 and coupled rear door front frame side outer panel (30) joined to the inner (20) and the rear pillar inner panel 40 which forms the car of the side, the frame side outer panel ( 30) and the rear pillar inner panel 40 is caused closed space 50 gangseongyong pad 60 and the reinforcing reinforced garment (70) is adapted to be coupled to the basic feature of the technical construction.
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