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Vehicle body rear part structure

Imported: 24 Feb '17 | Published: 06 Jan '04

Masahiro Kawazu, Hiroshi Osato, Yoshihiro Shimizu, Tohru Ono, Masanobu Yamashiro, Masaru Shibasawa

USPTO - Utility Patents

Abstract

A vehicle body rear part structure includes left and right rear frames extending longitudinally of the vehicle body, a plurality of parallel spaced cylindrical fuel tanks disposed horizontally between the left and right rear frames with the axes of the fuel tanks extending normal to the left and right rear frames and disposed below the center of a height of the rear frames, and a cross member disposed between two adjacent ones of the fuel tanks and extending between the left and right rear frames. The cross member reinforces the rear frames to such an extent that fuel tanks of larger capacity can be carried on the vehicle body rear part structure.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

A preferred embodiment of the present invention will hereinafter be described in detail, by way of example only, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic perspective view of a vehicle body rear part structure according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view of the vehicle body rear part structure;

FIG. 3 is a schematic perspective view of left and right rear frames of the vehicle body rear part structure;

FIG. 4 is an exploded perspective view of a portion of the vehicle body rear part structure including a left front bracket and a left inside sill extension;

FIG. 5 is a perspective view of a left rear bracket of the vehicle body rear part structure;

FIG. 6 is a left side view of the vehicle body rear part structure;

FIG. 7 is a cross-sectional view taken along line

7

7 of FIG. 6;

FIG. 8 is a cross-sectional view taken along line

8

8 of FIG. 6;

FIGS. 9A and 9B are diagrammatical side views illustrative of the operation of a conventional vehicle body rear part structure and the operation of the vehicle body rear part structure embodying the present invention, respectively;

FIG. 10 is a diagrammatical side view explanatory of the operation of the vehicle body rear part structure according to the present invention; and

FIG. 11 is a plan view of FIG. 10, showing the manner in which an impact force applied to a bumper beam of the vehicle body rear part structure is transmitted.

Claims

1. A rear part structure of a vehicle body, comprising:

2. The rear part structure of the vehicle body according to claim 1, wherein the left and right rear frames are each formed from a bent frame including a first straight portion extending in a longitudinal direction of the vehicle body, a slanting portion extending obliquely inward from a rear end of the first straight portion toward a longitudinal centerline of the vehicle body, and a second straight portion extending from a rear end of the slanting portion in the longitudinal direction of the vehicle body, and the cross member extends between the slanting portions of the left and right rear frames.

3. The rear part structure of the vehicle body according to claim 2, wherein the cross member has opposite end portions flared such that each of the flared end portions extends at an angle of from 90 to 180 degrees relative to the longitudinal axis of the slanting portion of a corresponding one of the left and right rear frames.