US 12,434,769 B2
Structural member of vehicle body
Toshiya Suzuki, Tokyo (JP)
Assigned to NIPPON STEEL CORPORATION, Tokyo (JP)
Appl. No. 18/015,462
Filed by NIPPON STEEL CORPORATION, Tokyo (JP)
PCT Filed Jul. 28, 2021, PCT No. PCT/JP2021/027868
§ 371(c)(1), (2) Date Jan. 10, 2023,
PCT Pub. No. WO2022/025105, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 2020-130554 (JP), filed on Jul. 31, 2020.
Prior Publication US 2023/0278634 A1, Sep. 7, 2023
Int. Cl. B62D 21/15 (2006.01); B62D 25/02 (2006.01); B62D 25/04 (2006.01); B62D 29/00 (2006.01)
CPC B62D 21/15 (2013.01) [B62D 25/025 (2013.01); B62D 25/04 (2013.01); B62D 29/007 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A structural member for an automobile body, comprising:
a hat channel member that has
a top sheet portion extending in a longitudinal direction,
a pair of side wall portions extending via first corner portions formed at both end portions of the top sheet portion in a width direction, and
a pair of flange portions extending via second corner portions formed at end portions of the pair of side wall portions on sides opposite to the first corner portions; and
a joining member that has
a pair of joining portions joined to the pair of flange portions of the hat channel member, and
a top sheet facing portion facing the top sheet portion of the hat channel member,
wherein a first bead extending in the longitudinal direction is formed on the top sheet facing portion,
wherein two or more second beads extending in a direction intersecting the longitudinal direction are formed on the pair of side wall portions,
wherein two or more of the first beads are formed in parallel in the width direction,
wherein the first beads bulge inward from the top sheet facing portion in a cross section perpendicular to the longitudinal direction, and
wherein the first beads are formed such that a center of each of the first beads in the width direction is positioned in a region from an inner end portion of the joining portion of the joining member to a point having a separation distance of ¼ of a width of the top sheet facing portion in the width direction in a cross section perpendicular to the longitudinal direction.