Title:
METHOD FOR MANUFACTURING WHEEL RIM FOR WHEEL
Document Type and Number:
WIPO Patent Application WO/2014/024907
Kind Code:
A1
Abstract:
A method for manufacturing a wheel rim for a wheel has: a base ring fabrication step for coiling a rectangular steel plate (10) into the form of a cylinder and welding and joining the two end parts of the coil to fabricate a base ring (20); and a rim-molding step carried out by a press, which moves an inner peripheral mold (42) and an outer peripheral mold (41) divided in the peripheral direction, to the base ring (20) to simultaneously reduce the diameter of the base ring (20) with the outer peripheral mold (41) and increase the diameter of the base ring (20) with the inner peripheral mold (42) and form the base ring (20) into a rim shape. The rim-molding step comprises at least one pre-molding step, and a finishing step.
Inventors:
ABE KISHIRO (JP)
Application Number:
PCT/JP2013/071327
Publication Date:
February 13, 2014
Filing Date:
August 07, 2013
Export Citation:
Assignee:
TOPY IND (JP)
International Classes:
B21D53/30; B60B21/02
Domestic Patent References:
| WO2011125968A1 | 2011-10-13 |
Foreign References:
| JPH02303640A | 1990-12-17 | |||
| JP2003236637A | 2003-08-26 | |||
| JP2000280042A | 2000-10-10 | |||
| JPH035035A | 1991-01-10 |
Attorney, Agent or Firm:
TABUCHI, Tsuneo et al. (JP)
Tsuneo Tabuchi (JP)
Tsuneo Tabuchi (JP)
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