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:
Feb. 14, 2023
Filed:
Feb. 18, 2021
Mazda Motor Corporation, Hiroshima, JP;
Harumitsu Kubota, Aki-gun, JP;
Taichi Hirakawa, Aki-gun, JP;
MAZDA MOTOR CORPORATION, Hiroshima, JP;
Abstract
A rear vehicle-body structure is provided that can absorb a rear-end collision load by a short frame region on a vehicle-body rear side. Embodiments include a rear side frame having a rear-side breaking frame section including a rear-side breakage starting portion on a rear side among breakage starting portions disposed at intervals in a front-rear direction, a front-side breaking frame section including a front-side breakage starting portion on a front side and at which the direction of breakage is opposite from the direction of breakage at the rear-side breakage starting portion, and a middle frame section between the rear-side breakage starting portion and the front-side breakage starting portion. The axial proof stress of the rear-side breaking frame section is lower than the axial proof stress of the front-side breaking frame section; and the middle frame section includes beads at a predetermined interval in an axial direction.