Title:
DEVICE FOR FORMING WHEEL RIM HUMP PORTION
Document Type and Number:
Japanese Patent JP3839795
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a wheel rim for a vehicle having a hump portion of excellent dimensional accuracy.
SOLUTION: A first claw 30 and a second claw 32 holding a work (a vehicular wheel rim) W are stopped at predetermined position. A right first die 16b is closed, and similarly a left first die 16a is closed. A curled portion C1 and an outer circumferential wall surface are supported by each supporting die 106 of the left first die 16a and the right first die 16b. Next, an annular supporting member 160 is abutted on the end face of the curled portion C1 of the work W. In addition, a roller die 124 is abutted on the inner circumferential wall surface of the work W by advancing a long rod 136. The roller die 124 is turned along the circumferential direction of the work W.
Inventors:
Koichi Arai
Application Number:
JP2003178488A
Publication Date:
November 01, 2006
Filing Date:
June 23, 2003
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
B21D22/16; B21D53/30; B21D41/02; B21H1/10; (IPC1-7): B21D53/30; B21D22/16
Domestic Patent References:
| JP1071443A | ||||
| JP270340A | ||||
| JP2299733A |
Attorney, Agent or Firm:
Takehiro Chiba
Toshiyuki Miyadera
Tatsuhiko Sato
Toshiyuki Miyadera
Tatsuhiko Sato
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