Vehicle rear body structure

摘要

A vehicle rear body structure includes rear floor panels, rear wheel housings, and rear side extensions. The rear side extensions each have a first joined portion that is joined to a breadthways outer end of each of the rear floor panels, a second joined portion that is joined to an rear end of each of the rear wheel housings, a side portion that is an uprising slanted portion extending from the rear end of the first joined portion to the second joined portion, a surface portion surrounded by the first joined portion, the second joined portion, and the side portion, and an extending portion joined to a flange portion of a rear pillar, wherein the side portion is configured to have higher stiffness or strength than at least the surface portion.

主权项

1. A vehicle rear body structure comprising:
rear floor panels located at the rear of a body; rear wheel housings that are disposed at both breadthways outer sides of the rear floor panels; and rear side extensions that are disposed at both breadthways outer sides of the rear floor panels behind the rear wheel housings, wherein the rear side extensions each have a first joined portion that is joined to a breadthways outer end of each of the rear floor panels, a second joined portion that is joined to a rear end of each of the rear wheel housings, a side portion that is provided between the first joined portion and the second joined portion, and a surface portion surrounded by the first joined portion, the second joined portion, and the side portion, and wherein the side portion is configured to have higher stiffness or strength than at least the surface portion, wherein a rear panel is provided at rear ends of the rear floor panels, and rear pillars are provided so as to extend upward from both breadthways ends of the rear panel, wherein the rear side extensions each have an extending portion that extends toward the rear of the body from midway along the length of the side portion and that is joined to at least one of the rear panel and the rear pillar, and wherein the extending portion is formed into a substantially triangular shape with a first side that extends upward from the vicinity of a rear end of the first joined portion and a second side that stands upward so as to extend toward the rear of the body from midway along the length of the side portion.