rear body structure

Abstract

A vehicle body rear structure provided with: side wall panels (7) that are respectively provided to the right and left sides of a vehicle body; a parcel shelf (8) that extends along the vehicle width direction and connects the left and right side wall panels (7); and shelf gussets (1) that extend along the up-and-down direction, that have a vehicle outside end part that is joined to a vehicle inside side surface of the respective side wall panel (7), and that have an upper end that is joined to the parcel shelf (8). Each shelf gusset (1) is structured so as to be partitioned into a first gusset (11) and a second gusset (12) that is arranged behind the first gusset (11). A first closed cross-section part (C1) that extends in the up-and-down direction is formed by the first gusset (11) and the second gusset (12).

Description

technical field [0001] The present invention relates to a vehicle body rear structure. Background technique [0002] Patent Document 1 discloses a vehicle body rear structure in which a center floor cross member and left and right end portions of an upper back member, which are arranged at a distance from each other up and down, are connected by a pair of reinforcing members, respectively, and the reinforcing members are reinforced. The outboard end of the component is joined to the rear wheel house. [0003] The reinforcing member is formed in a U-shaped cross-section consisting of a first inclined portion having a predetermined width in the vehicle width direction, a second inclined portion formed in parallel with the first inclined portion rearward at a distance, and a second inclined portion formed in parallel to the rear. The 1st inclined part and the 2nd inclined part are comprised by the curved part which connects the vehicle inner side edge part. Moreover, the uppe...

AI Technical Summary

Problems solved by technology

[0009] Even if it is formed without breaking, it is difficult to ensure sufficient rigidity and strength because the thickness of the upper end becomes thinner in proportion to the increase in elongation.

[0010] In this way, as the elongation of the base material increases, fracture or rigidity and strength decrease, so in Patent Document 1, it is not possible to extend the outer end portion of the second inclined portion toward the outer side of the vehicle. Combined with rear wheel housing

As a result, it is impossible to form a closed cross-section with reinforcement members, and the rigidity and strength of the rear of the vehicle body are insufficient.

Therefore, it is necessary to implement further reinforcement by using additional reinforcement components, etc., but this will lead to an increase in the weight of the vehicle body

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