Patent Number: 6,296,320

Title: Multi-piece rim type disk wheel and a method for producing the same

Abstract: A multi-piece rim type disk wheel includes a multi-piece rim and a disk. The multi-piece rim includes a rim base, a bead seat band, a lock ring and a flange. The disk includes an outside portion constituting a part of the rim base, and a hub coupling portion extending radially inwardly from the outside portion and has a substantially T-shaped cross-section. A method of producing the multi-piece rim type disk wheel includes the steps of: manufacturing a gutter band, a first center band, a disk having a substantially T-shaped cross-section, a second center band and a back flange separately from each other; and connecting them to each other by a full penetration butt weld to form into the integral rim base.

Inventors: Miyashita; Satoru (Ebina, JP), Itoh; Mitsuru (Ayase, JP), Takeuchi; Ichiro (Ayase, JP)

Assignee: Topy Kogyo Kabushiki Kaisha

International Classification: B60B 25/00 (20060101); B60B 25/04 (20060101); B60B 021/00 ()

Expiration Date: 10/02/2018