Uacj Corporation

Honda Motor Co., Ltd.

Tomoya Yokota

Tomohide Sekiguchi

Ryo Kita

Keiichiro Tsuji

Tatsuo Inagaki

Naoki Takaki

Yutaka Yamada

Yoshiharu Sakai

A shock absorbing member of the present disclosure is a shock absorbing member including a first hollow member () and a second hollow member () that are made of aluminum alloy and are weld joined to each other, in which a weld material and weld beads (W) do not project from a side on which a joined surface between the first hollow member () and the second hollow member () is located.

Shock-absorbing member

A bumper structural body () includes a bumper reinforcement (), energy absorbing members (), and intermediate members (). The sloped sections () of the bumper reinforcement () are connected to the energy absorbing members () and the intermediate members (). The intermediate members () are each formed in a quadrilateral by connecting a first portion () contacting the energy absorbing member (), a second portion () contacting the bumper reinforcement (), and portions connecting the first portion () and the second portion ().

Bumper structural body

An energy absorbing member () is formed of an aluminum alloy extruded material having a substantially quadrangular outer shape. Straight portions of a pair of long sides of a quadrangular shape are each segmented into three side walls () by two arcuate internal projections () that project inward. Vertices of opposing internal projections () are joined by a rib (). Accordingly, the energy absorbing member () is configured to have a shape in which three cylindrical portions having hollow portions () are joined. Arc-shaped internal projections () that each project inward are provided in four corners of the quadrangular shape.

Energy absorbing member

Growing community of inventors

Tokyo, Japan

Tomoya Yokota