Title:
車両用ホイールリムの製造方法
Document Type and Number:
Japanese Patent JP5191613
Kind Code:
B2
Abstract:
A method of manufacturing a wheel rim for a vehicle includes an ironing step for ironing a tubular material to manufacture a tubular member having a non-constant thickness, using an ironing apparatus provided with a punch, a die whose side surface opposing the punch is a convex and concave surface, and a pressing member. At the ironing step, a flange portion of the tubular material is set at the die, then the pressing member is moved relative to the die thereby to squeeze the flange portion of the tubular material by the pressing member and the die, and then the punch is moved relative to the die to iron at least a portion of the tubular material except the flange portion of the tubular material to manufacture the tubular member having a non-constant thickness.
Inventors:
Kishiro Abe
Takamitsu Takano
Kato Katsuki
Kenji Taguchi
Takamitsu Takano
Kato Katsuki
Kenji Taguchi
Application Number:
JP2012500610A
Publication Date:
May 08, 2013
Filing Date:
February 16, 2011
Export Citation:
Assignee:
Topy Industries, Ltd.
International Classes:
B21D53/30; B60B21/00
Domestic Patent References:
| JP2000288669A | 2000-10-17 | |||
| JPS6142430A | 1986-02-28 | |||
| JPH10160376A | 1998-06-19 | |||
| JP2002282949A | 2002-10-02 |
Attorney, Agent or Firm:
Keio Tabuchi
Tomoo Tabuchi
Tomoo Tabuchi