Mazda Motor Corporation

Y-tec Corporation

Hideaki Kawaguchi

Hiroyuki Takahashi

Masayuki Jobira

Kazuhiro Nishimura

Nobuyuki Nakado

Yuya Yamanaka

Shun Kuwako

The thickness of one of a pair of panels (an inner panel () and an outer panel ()) of each trailing arm () is greater than the thickness of the other panel, and a rear wheel support unit (an axle unit ()) configured to support each rear wheel is coupled to one of the pair of panels (the inner panel () and the outer panel ()).

Automobile rear suspension structure

A torsion beam of a vehicle torsion beam suspension has a closed cross section. A beam center portion has an inverse substantially v-shaped cross section or a substantially v-shaped cross section. Circumference increasing portions having a longer circumferential length toward the beam ends are disposed at opposite sides of the beam center portion. Each circumference increasing portion has a beam width that is a width in the fore and aft direction of a vehicle body, the beam width gradually increasing toward a beam end, and increasing at a higher rate as a position of the beam width is closer to the beam end.

Vehicle torsion beam suspension and vehicle torsion beam

Growing community of inventors

Hiroshima, Japan

Hideaki Kawaguchi