Patent ID: 8727429

Claim:
A front portion structure of a vehicle body comprising: a front side frame extending forward from a front portion of a floor of a passenger space and disposed close to a front wheel, the front side frame including: a front side frame main unit including a substantially hat shape in cross-section wherein the hat shape includes a flange and an opening facing an outer direction in a vehicle width direction where a front wheel is placed, a back plate layered with and joined with the flange facing toward the outer direction to form a closed cross-section with the front side frame main unit, a tire clearance portion formed in a curved shape corresponding to steering of the front wheel, and a bulkhead disposed at the rear of the tire clearance portion within the closed cross-section of the front side frame; wherein the front side frame main unit includes a sidewall facing the opening and formed in an substantially straight line from a front end of the front side frame main unit to a middle portion including the tire clearance portion; and wherein the flange includes a flange straight portion formed in the tire clearance portion, substantially parallel with the sidewall.