Topy Kogyo Kabushiki Kaisha

Shun Yamada

Kishiro Abe

Masayuki Atari

Yasuyuki Murata

Akira Ishida

Hisashi Yoshimura

Yuichi Suzuki

A light-alloy wheel is cast using an apparatus wherein cores are moved by a cotter via a sliding mechanism. A sliding portion is isolated from molten metal so that locking at the sliding portion is unlikely to occur. The sliding mechanism can be of a small size and is disposed in an interior of a mold top segment with a relatively large gap between the cotter and the mold top segment. The gap assures a good heat dissipation from the mold top segment. In a molding method conducted using the apparatus, the cores may be positioned at a retracted position and extended before the molten metal has solidified to thereby remove blow holes in a cast wheel.

Growing community of inventors

Minamishitara-gun, Japan

Shun Yamada