Patent attributes
A vehicle body side portion structure is disposed with a pair of right and left roof side rails disposed along a vehicle anteroposterior direction on both sides of a roof reinforcement that extends along a vehicle width direction of a roof and connection portions that bond together the roof side rails and the roof reinforcement. First fold portions in vehicle width direction outside end portions of the connection portions are disposed in a position higher in a vehicle vertical direction than second fold portions in vehicle width direction inside end portions of the connection portions. When a side load F equal to or greater than a predetermined value is inputted, the first fold portions rotate and move towards the vehicle upper side with the second fold portions acting as supporting points, the first fold portions become bent so as to become convex towards the vehicle upper side.
