Invention Grant
US06719375B2 Wheel rim and wheel rim manufacturing method 有权
轮辋和轮辋制造方法

  • Patent Title: Wheel rim and wheel rim manufacturing method
  • Patent Title (中): 轮辋和轮辋制造方法
  • Application No.: US10209873
    Application Date: 2002-08-02
  • Publication No.: US06719375B2
    Publication Date: 2004-04-13
  • Inventor: Takeshi Tanaka
  • Applicant: Takeshi Tanaka
  • Priority: JP2002-039903 20020218
  • Main IPC: B60B2102
  • IPC: B60B2102
Wheel rim and wheel rim manufacturing method
Abstract:
It is an object of the present invention to provide a wheel rim equipped with rim flanges that show no deformation or damage even though a reduction in weight is achieved. The wheel is equipped with rim flanges 3 consisting of a double structure in which the end portions across the rim part 2 of width of the rim are folded back to the inside and caused to contact the non-folded portions 3B in a state in which there is no gap. The abovementioned folded portions 3A and non-folded portions 3B have respective thicknesses that are greater than the thickness D1 of the rim part, and curved parts 3C that are smoothly continuous with the surfaces of the non-folded portions 3B are provided on the free end portions of the folded portions 3A.
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