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DEVICE FOR MEASURING SPEED, PARTICULARLY FOR CYCLES

  • US 20080122596A1
  • Filed: 06/29/2007
  • Published: 05/29/2008
  • Est. Priority Date: 07/03/2006
  • Status: Active Grant
First Claim
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1. A device for measuring speed of a cycle, the cycle having a frame and at least one wheel fastened for rotation relative to a frame by means of a fastening axle threaded at least at one end and a screw nut adapted to be screwed onto the threaded end of the axle, said device comprising:

  • a wheel rotation detection mechanism comprising;

    a fixed sensor adapted to be mounted on a portion of the frame of the cycle, said sensor being adapted to detect passing of a movable sensor element fixed for movement with the wheel of the cycle and to generate a signal representative of said passing of the movable sensor element;

    a signal processor to process the signal generated by the fixed sensor;

    a casing, said casing housing at least one of the fixed sensor and the signal processor, the casing being affixed to the screw nut of the fastening axle of the wheel.

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