The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2020
Filed:
Jan. 06, 2017
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Yoshiaki Nakazawa, Tokyo, JP;
Ryuichi Nishimura, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
[Object] To achieve a weight reduction of a car body structure while maintaining collision safety to impacts from the rear side of the vehicle. [Solution] Provided is a vehicle rear portion structureincluding a pair of rear framesprovided in the vehicle length direction and a rear floor paneljoined to the pair of rear frames, in which the rear floor panelhas a concave sectionprovided from the rear side of the vehicle toward the front side of the vehicle of the rear floor panel, and the concave sectionis formed of a metal sheet having a tensile strength more than or equal to the tensile strength of the pair of rear frames. By this configuration, when an impact load from the rear side of the vehicle acts on the concave sectionof the rear floor panel, the rear floor panelcan absorb collision energy in a principal way. Thus, the burden of absorption of collision energy by the rear framesis reduced, and accordingly it becomes possible to reduce the wall thickness and the length of the rear frameand a weight reduction of the entire car body structure is achieved.