Topy Kogyo Kabushiki Kaisha

Watanabe Tekko Kabushiki Kaisha

Susumu Itou

Yusaku Shinozawa

Morishi Kunou

Tsunoru Nakamura

Kishirou Abe

A wheel rim forming machine including a fixed frame having four vertically extending columns. Due to the frame structure, the forming force acting at the top and bottom rolls of the machine are borne evenly through tensile forces acting in the four columns. Thus, no bending deformation occurs in the columns. Further, because the columns are not exposed to bending forces, they can be formed with a relatively small cross-section and thus the frame structure is compact. Therefore, access to the guide rolls and their support structure is facilitated and high grade adjustment of the guide rolls is possible.

Wheel rim forming machine

A method shaping and machining a disc wheel and an equipment therefor wherein, in a disc wheel formed by welding together a rim and a disc, upper and lower mandrels are inscribed with rim bead seat portions formed on both sides of the rim, while upper and lower spinning rolls are pressed against the outer peripheries of the rim bead seat portions for spinning of the latter, and a hub hole formed in the disc is machined with a cutter which is concentric with the upper and lower mandrels, thereby effecting a high accuracy in shaping and machining a disc wheel.

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Kawasaki, Japan

Susumu Itou