Snap-On Deutschland Holding Gmbh

Paul Conheady

John C Brennan

Helen Lowe

A method and an apparatus for scanning a vehicle wheel, wherein a location on the wheel is sensed by means of a light beam emitted by a light source and is reflected to a position-sensitive receiver. The spacing of the sensed location relative to a reference location is measured from the directions of the emitted beam and the reflected beam. The light source and the position-sensitive receiver are synchronously pivoted about a common axis by means of a rotary drive including a stepping motor for successive measurement steps. A rotary angle sensor supplies signals proportional to the rotary position of the stepping motor to an evaluation system.

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Tulla, Ireland

Paul Conheady