US 12,325,469 B2
Vehicle floor structure and method for manufacturing vehicle
Nobuyo Kondo, Toyota (JP); Hiroshi Kawaguchi, Okazaki (JP); and Yoshihiko Tsuzuki, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Dec. 8, 2022, as Appl. No. 18/077,395.
Claims priority of application No. 2022-012961 (JP), filed on Jan. 31, 2022.
Prior Publication US 2023/0242186 A1, Aug. 3, 2023
Int. Cl. B62D 25/20 (2006.01); B32B 15/08 (2006.01)
CPC B62D 25/2072 (2013.01) [B32B 15/08 (2013.01); B32B 2255/06 (2013.01); B62D 25/20 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A vehicle floor structure comprising:
a floor pan;
an upper surface-side reinforcing member joined to an upper surface of the floor pan; and
a lower surface-side reinforcing member joined to a lower surface of the floor pan, wherein
the floor pan is formed of a resin-coated steel plate,
a resin layer of the resin-coated steel plate includes a first resin layer formed on the upper surface of the floor pan and a second resin layer formed on a part of the lower surface of the floor pan that is in contact with the lower surface-side reinforcing member,
the first resin layer is formed over the entire upper surface of the floor pan,
the second resin layer is formed only on a part of the lower surface of the floor pan including the part of the lower surface thereof in contact with the lower surface-side reinforcing member, and
the floor pan is formed of a tailored blank material in which a first resin-coated steel plate in which only the first resin layer is formed and a second resin-coated steel plate in which the first and second resin layers are formed are welded to each other.