The subject innovation is not to be, in general, add the loop side of the upper forming a vehicle pillar hollow that due to additional upper of the pillar from the physical impact generated accident overturn of the vehicle to function on the loop side pillar upper of gangseongbo steel structure of the vehicle in order to solve the problem of safety is subject to a serious threat of the occupant as to be damaged, to the loop 3, the hollow portion 5 of the side of the upper portion 4 of each of the pillars (2) forming the vehicle body (1) this section grain shielding plate (7) respectively at a distance of a certain in three directions from the intersection 6 of the virtual formed through-holes 8 inside the upper part (4) forming the junction 6 formed is formed are, the expandable member (9) in the hollow portion 5 of the upper part (4) filled with the through hole 8 whereby the loop (3) side of the upper portion 4 of the vehicle pillar (2) the vehicle the occupants are being damaged even when the holding position without rollover The effect of being able to be more secure.
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