Toyota Jidosha Kabushiki Kaisha

Koji Kurozumi

Koji Inoue

Kiyoshi Nonomura

Koichi Hiramatsu

Hiroyuki Horiuchi

The present disclosure provides a collision energy absorbing apparatus capable of suppressing a peak load at the initial stage of a collision and a load drop immediately after it. The collision energy absorbing apparatus is an apparatus that absorbs collision energy, the apparatus being mounted on a vehicle and including a pressure member, an absorbing member, and a guide part that guides, a moving direction of the pressure member, in which a hole through which the pressure member guided and moved by the guide part enters is formed in the absorbing member, and in an event of a collision, the pressure member is guided by the guide part and a tip part of the pressure member enters the hole formed in the absorbing member while shearing an inner wall of the hole, to thereby absorb collision energy.

Collision energy absorbing apparatus

An incremental forming method includes pressing a rod-shaped tool into a workpiece and stretching the workpiece little by little while moving the rod-shaped tool so that a percentage of decrease in plate thickness of the workpiece after forming with respect to plate thickness of the workpiece before forming is made to be within a range of 35% to 40%, inclusive.

Incremental forming method

A forming method of a metal plate includes press-forming the metal plate with a die, and processing the press-formed metal plate by incremental-forming.

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Obu, Japan

Koji Kurozumi