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Vehicle wheel alignment measuring apparatus

  • US 6,657,711 B1
  • Filed: 06/26/2000
  • Issued: 12/02/2003
  • Est. Priority Date: 06/25/1999
  • Status: Expired due to Fees
First Claim
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1. An apparatus for measuring the alignment of a vehicle wheel, in rotation, in a non-contact fashion, comprising:

  • a laser light source for emitting a laser beam having a section of a geometric pattern toward at least the wheel side surface;

    laser beam control means for controlling the width of said laser beam from said laser light source in such a manner as to radiate only a predetermined range of the wheel side surface;

    a photodetecting device for receiving the laser beam controlled by said laser beam control means and reflected in said predetermined range of said wheel side surface and converting said laser beam into a corresponding image data; and

    processing means for processing said image data and calculating said wheel alignment.

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