| 摘要 |
Disclosed is a vehicle chassis side structure comprising a side sill (15) whereupon a closed section is formed from a side sill outer (37) and a side sill inner (38). The side sill outer (37) comprises an upper wall portion (44) and a lower wall portion (45). The closed section is formed in a polygonal shape by forming an upper bead (47) from the leading end of the side sill (15) to the trailing end thereof, upon at least the upper wall portion (44) from among the upper and lower wall portions (44, 45). The vehicle chassis side structure further comprises a reinforcement member (64) upon a central joining portion (56) whereat a center pillar (17) is joined, which closes an opening (61) of the upper bead (47) and an opening (62) of a lower bead (48), forming the closed section.
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