superstructure

Abstract

The invention provides an upper structure of a vehicle bodywork. Torsional rigidity and side face collision performance of a vehicle bodywork can be improved and weight reduction of the vehicle bodywork is achieved in case that enhancement components are not increased. The upper structure includes a resin roof (2), a roof beam (3) in a vehicle width direction, and roof rails (4) on the right and left sides in a longitudinal direction of vehicle on the right and left sides of a vehicle body, the roof (2) having portions of high rigidity (21) each having greater rigidity than other normal portions (20) of the roof (2), each high stiffness portion (21) being at an angle of an intermediate portion of the roof beam (3) in the vehicle width direction to one of the corresponding roof rails (4) onthe right and left sides and each high rigidity portion (21) being in a vehicle front side region (R1) or a vehicle rear side region (R2) on each side of the roof beam (3).

Description

technical field

[0001] The invention relates to the superstructure of a vehicle body. Background technique

[0002] Conventionally, there is known a technique of molding a roof in an upper portion of a vehicle body using a resin material in order to reduce the weight of the vehicle body. Also, when a resin roof is used instead of a steel roof, the torsional rigidity of the vehicle body and the performance of the vehicle body in a side impact generally deteriorate.

[0003] Therefore, in the conventional vehicle body upper structure, there is a technique for providing ribs at each of the four corners of the resin roof panel to improve the rigidity of the vehicle body (for example, refer to Patent Document 1).

[0004] prior art literature

[0005] patent documents

[0006] Patent Document 1: Japanese Patent No. 5494835 Contents of the invention

[0007] The problem to be solved by the invention

[0008] Unfortunately, the structure provided with ribs at the corners of...

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