US 12,304,563 B2
Lower vehicle-body structure of vehicle
Isamu Kizaki, Hiroshima (JP); Takuto Fukushima, Hiroshima (JP); Masanori Honda, Hiroshima (JP); and Chikara Kawamura, Hiroshima (JP)
Assigned to MAZDA MOTOR CORPORATION, Hiroshima (JP)
Filed by MAZDA MOTOR CORPORATION, Hiroshima (JP)
Filed on Jan. 13, 2023, as Appl. No. 18/154,645.
Claims priority of application No. 2022-062968 (JP), filed on Apr. 5, 2022.
Prior Publication US 2023/0311997 A1, Oct. 5, 2023
Int. Cl. B62D 21/15 (2006.01); B62D 25/02 (2006.01)
CPC B62D 21/157 (2013.01) [B62D 25/025 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A lower vehicle-body structure of a vehicle which is provided with a side sill having a closed-cross section jointly formed by a side sill outer and a side sill inner which extend in a vehicle longitudinal direction,
wherein said side sill outer comprises an upper face portion and a lower face portion which is downwardly away from said upper face portion, each of which comprises a bending portion which is formed by each of the upper face portion and the lower face portion bent toward an inside of the side sill,
said side sill inner comprises a first upper face portion which extends in a vehicle width direction, an upper-side slant face portion which extends obliquely toward an inward side, in the vehicle width direction, and a downward side from an end portion of the inward side of said first upper face portion, a second upper face portion which extends toward the inward side, in the vehicle width direction, from an end portion of the inward side of said upper-side slant face portion, a first lower face portion which extends in the vehicle width direction at a position downwardly away from said first upper face portion, a lower-side slant face portion which extends obliquely toward the inward side, in the vehicle width direction, and an upward side from an end portion of the inward side of said first lower face portion, and a second lower face portion which extends toward the inward side, in the vehicle width direction, from an end portion of the inward side of said lower-side slant face portion, and
said side sill inner further comprises a pair of upper-and-lower second bending portions which are bent toward an inside of said side sill at respective positions between said second upper face portion and said upper-side slant face portion and between said second lower face portion and said lower-side slant face portion.