REINFORCEMENT MEMBER FOR VEHICLE, AND METHOD FOR MANUFACTURING SAME

There is provided a reinforcement member for a vehicle which includes a cylindrical body section having a continuously closed cross section intersecting with a longitudinal direction. The cylindrical body section has a first surface, a second surface, and a third surface. The third surface has a fourth surface extending away from the second surface, and a fifth surface connecting the fourth surface and the first surface to each other. In a sectional view when viewed in the longitudinal direction, in a case where a virtual line connecting a first intersection portion where the first surface and the third surface intersect with each other and a second intersection portion where the second surface and the third surface intersect with each other is set, a third intersection portion where the fourth surface and the fifth surface intersect with each other protrudes outward with respect to the virtual line.