Title:
ホイール・ディスクの生産方法
Document Type and Number:
Japanese Patent JP2009525191
Kind Code:
A
Abstract:
A method of forming a wheel disc starts with a flat blank. A plurality of windows are formed in the wheel disc, wherein each window has a respective outer edge proximate with a continuous outer band around a periphery of the wheel disc. The windows define a plurality of spokes between adjacent windows, and the angular size of each of the windows along the outer band is preferably greater than the angular size of each of the spokes. The outer band is partially closed toward a cylindrical shape by engaging a cam die against at least a portion of the outer band. The outer band is substantially fully closed into a cylindrical shape by axially wiping the outer band using a cylindrical die. The intermediate camming operation achieves the desired final shape after wiping without introducing stresses that would weaken or distort the wheel disc.
Inventors:
Coulman, Alan
Zarniki, Tom
Flora, bill
Zarniki, Tom
Flora, bill
Application Number:
JP2008553300A
Publication Date:
July 09, 2009
Filing Date:
January 29, 2007
Export Citation:
Assignee:
Haze, remaz, international, ink
International Classes:
B21D53/26; B60B1/10; B60B3/02; B60B3/04
Domestic Patent References:
| JP2004131050A | 2004-04-30 | |||
| JP2003126935A | 2003-05-08 | |||
| JP2004074248A | 2004-03-11 | |||
| JPH0871677A | 1996-03-19 |
Foreign References:
| US2406062A | 1946-08-20 | |||
| US20080034587A1 | 2008-02-14 |
Attorney, Agent or Firm:
Yuzo Sanada
Ohara Shizuo
Ohara Shizuo