Title:
スポーク状ホイールディスクの製造方法及びスポーク状ホイール
Document Type and Number:
Japanese Patent JP4397049
Kind Code:
B2
Abstract:
A method comprising: a step of preforming a plurality of bulging portions on a substantially circular plate blank, the bulging portions being located concentrically and circumferentially outward of a bolt hole, each of the bulging portions being a base of a reinforcing portion of a spoke; a step of forming a plurality of prototypical decorative holes on the respective bulging portions to form a prototypically-shaped spoke between the adjacent prototypical decorative holes; a step of forming a disk flange by bending an outer circumferential portion of the plate blank, on which the prototypical decorative holes are formed, at a right angle to be substantially parallel to a wheel axial direction, so that an outer periphery of a resultant decorative hole forms an upper end edge of the disk flange; and a step of forming the spoke by providing the prototypically-shaped spoke with the reinforcing portion.
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Inventors:
Satoshi Sano
Yoshinobu Sakashita
Takagi Katsura
Kikuya Ito
Yoshinobu Sakashita
Takagi Katsura
Kikuya Ito
Application Number:
JP2008268178A
Publication Date:
January 13, 2010
Filing Date:
October 17, 2008
Export Citation:
Assignee:
Topy Industries, Ltd.
International Classes:
B60B3/04; B21K1/32; B60B1/10
Domestic Patent References:
| JP200535330A | ||||
| JP2005119355A | ||||
| JP7100206B2 |
Attorney, Agent or Firm:
Kenichiro Akao
Akira Shimoda
Naoto Koyama
Akira Shimoda
Naoto Koyama