Honda Motor Co., Ltd.

Yoshikatsu Ota

Kosaku Tomozawa

Yusuke Takayama

Hitomi Yamada

Masaaki Fujimoto

A vehicle body upper structure includes: roof side rails provided at end portions in a vehicle width direction of a vehicle body upper portion; side outer panels covering vehicle outer side surfaces of the roof side rails; and a roof panel made of a material different from a martial of the roof side rails and provided at a center portion in the vehicle width direction of the vehicle body upper portion, and the roof panel and the paired side outer panels are fixed to one another by braze joining. Outer end portions in the vehicle width direction of the side outer panels are joined to outer end portions in the vehicle width direction of the roof side rails. Inner end portions in the vehicle width direction of the side outer panels are not joined to inner end portions in the vehicle width direction of the roof side rails.

Vehicle body upper structure and assembly method of automobile vehicle body

A vehicle body upper structure includes: roof side rails; side outer panels; and a roof panel made of a material different from a martial of the roof side rails. The roof panel and the paired left and right side outer panels are fixed to one another by braze joining. An end portion of the roof panel in a vehicle front-rear direction includes a first coupling portion in which one of the roof side rails, the roof panel, and one of the side outer panels are coupled to one another, a notch portion that is provided on the inner side in the vehicle width direction of the first coupling portion, and a fragile portion that extends from a tip end portion of the notch portion toward a braze joining portion of the side outer panel and the roof panel.

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Wako, Japan

Yoshikatsu Ota