Honda Motor Co., Ltd.

Yusuke Takayama

Takayuki Yamada

Yasunori Watanabe

Shigeyuki Nagai

Hitoshi Mizohata

Kosaku Tomozawa

Kazunori Hida

Shouji Yamazaki

Hitomi Yamada

Masaaki Fujimoto

Hiroto Sugiyama

Yoshikatsu Ota

Tomohisa Tanaka

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.

Vehicle body upper structure

A vehicle body side structure includes a house reinforcing member mounted on a front upper portion of an inner wheel house, the house reinforcing member having a front connecting portion connected to a flange of the inner wheel house, a panel portion extending from the front connecting portion in an inclined manner, and a rear connecting portion connected to a rear bulkhead. A rear end of a door beam is provided outwardly of a striker in a vehicle width direction, and the rear end of the door beam, the striker, and the front connecting portion are provided in an overlapping manner from outside to inside in the vehicle width direction.

Vehicle body side structure

A vehicle body side part structure having high strength against a load in a frontal collision and a load in a side collision. A side panel outer member () is provided with a front pillar lower section () which is formed from a high-tensile steel sheet, a front pillar upper section () which is formed from a normal steel sheet, and a reinforcement member () which is disposed along the front pillar upper section. The upper end () of the front pillar lower section () is joined to the inner surface of the lower end () of the front pillar upper section. The front end () of the reinforcement member () is joined to the inner surface of the upper end () of the front pillar lower section.

Structure for side section of vehicle body

A center pillar section formed of a high-tensile steel plate is fixed to a side panel frame section including a roof rail section formed of an ordinary-tensile steel plate. A reinforcing member formed of a high-tensile steel plate is provided inside the roof rail section, and the center pillar section is fixed at its upper end portion to the outer surface of the reinforcing member and at its lower end portion to the side sill section. A door beam provided within a front door overlaps the center pillar section and lower portion of a front pillar section. Front and rear end portions of the door beam are opposed to respective increased-width portions of the front pillar section and center pillar section.

Vehicle side body structure

An automotive vehicle body structure including a dash panel separating an engine room from a passenger compartment, a front pillar extending vertically along each outboard edge of the dash panel and a wheel house portion connected between an outboard edge of the dash panel and an opposing side of a lower part of the front pillar, a reinforcing member extends along a boundary between the outboard edge of the dash panel and wheel house portion and defines a closed cross section jointly with the dash panel and wheel house. The wheel house portion has a three dimensional contour bulging toward the passenger compartment and relatively high rigidity to reinforce the dash panel by reinforcing the boundary between the wheel house portion and dash panel. The impact load applied to the dash panel during a frontal crash is evenly distributed to various structural parts and a favorable crash safety is achieved.

Automotive vehicle body structure

Side sill includes a side sill body formed of a steel plate, and a side sill reinforcing member formed by extruding an aluminum alloy and provided inside the side sill body. Reinforcing bracket formed by casting an aluminum alloy covers the outer surface of the side sill body. The reinforcing bracket has protruding portions projecting, through through-holes formed in the side sill body, generally toward the interior of the side sill to be fixed to portions of the side sill reinforcing member, so that the side sill reinforcing member is restrainedly held by the reinforcing bracket.

Growing community of inventors

Wako, Japan

Yusuke Takayama