AUTOMOTIVE REAR VEHICLE BODY STRUCTURE

摘要

Disclosed is an automotive rear vehicle body structure which comprises a rear subframe (21) provided with right and left side member segments (22). Each of the right and left side member segments (22) has a rear region provided with a rear fixing section (26) attached to a respective one of right and left rear side frames (7), and a front region provided with a front fixing section (25) attached to a vehicle-body cross member (10). A position of the front fixing section (25) of each of the side member segments (22) is set to be located inward of the respective one of the rear side frames (7) in a vehicle width direction, and each of the side member segments (22) is provided with an arm support section (28) configured to pivotally support a suspension arm (32), at a position rearward of the front fixing section (25).

主权项

1. An automotive rear vehicle body structure comprising:right and left rear side frames; a vehicle-body cross member mutually coupling the right and left rear side frames and defining a closed cross-section in cooperation with a vehicle-body floor panel; and a rear subframe for supporting a rear suspension, wherein:
the rear subframe has right and left side member segments, and front and rear cross member segments each mutually coupling the right and left side member segments; each of the right and left side member segments has a rear region provided with a rear fixing section attached to a respective one of the right and left rear side frames, and a front region provided with a front fixing section attached to the vehicle-body cross member; a position of the front fixing section of each of the side member segments is set to be located inward of the respective one of the rear side frames in a vehicle width direction; each of the side member segments is provided with an arm support section at a position rearward of the front fixing section, the arm support section being configured to pivotally support a suspension arm of the rear suspension; the rear cross member segment comprises a central portion located forward of the rear fixing section of each of the side member segments, a rearwardly-inclined portion extending from the central portion obliquely toward the rear fixing section of each of the side member segments, and a forwardly-inclined portion extending outwardly in the vehicle width direction and forwardly while being branched with respect to the rearwardly-inclined portion; and the central portion of the rear cross member segment is provided with two rear arm support sections at right and left portions thereof, each of the rear arm support sections being configured to pivotally support a rear arm located rearward of the suspension arm.