US 9,809,253 B2
Vehicle body lower portion structure
Masakazu Shirooka, Toyota (JP); and Teppei Hae, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi (JP)
Appl. No. 15/26,457
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi (JP)
PCT Filed Nov. 7, 2014, PCT No. PCT/JP2014/080131
§ 371(c)(1), (2) Date Mar. 31, 2016,
PCT Pub. No. WO2015/079928, PCT Pub. Date Jun. 4, 2015.
Claims priority of application No. 2013-246604 (JP), filed on Nov. 28, 2013.
Prior Publication US 2016/0236717 A1, Aug. 18, 2016
Int. Cl. B62D 21/15 (2006.01); B62D 25/20 (2006.01)
CPC B62D 21/155 (2013.01) [B62D 25/20 (2013.01); B62D 25/2018 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A vehicle body lower portion structure, comprising:
a floor member that extends in a vehicle longitudinal direction at a vehicle lower side of a floor panel, wherein the floor member includes a front end portion that is joined to a rear end portion of a front side member and, together with the floor panel, forms a closed cross-section portion;
a floor cross member that extends in a vehicle transverse direction at a vehicle upper side of the floor panel and intersects the floor member as seen in plan view, wherein the floor cross member is joined to the floor panel and is a vehicle rear side mounting portion of a vehicle seat; and
a reinforcing member that extends in the vehicle longitudinal direction within the closed cross-section portion and reinforces the floor member, wherein the reinforcing member intersects the floor cross member as seen in plan view,
wherein an intersection region joined portion, at which the floor cross member, the floor panel and the reinforcing member are joined, is formed at an intersection region where the floor member and the floor cross member intersect as seen in plan view, and
wherein a first rear side joined portion, at which the floor panel, a rear end portion of the reinforcing member, and the floor member are joined, is formed at a vehicle rear side of the intersection region,
a second rear side joined portion, at which the floor panel and the floor member are joined, is formed at a vehicle rear side of the first rear side joined portion, and
a rear end of the reinforcing member is disposed between the first rear side joined portion and the second rear side joined portion in the vehicle longitudinal direction.