Device for the detection and measurement of a position on a turning body, and machine for balancing a turning body
First Claim
1. In a device for the detection and measurement of a position on a turning body mounted on a balancing machine having means for driving the turning body into rotation about an axis of rotation, the device comprising in combination illumination means and at least one means for detecting luminous intensity receiving radiation from an illuminated position, the improvement wherein said illumination means include means for providing a light beam of substantially parallel rays with glancing incidence and the detector means of luminous intensity include a chamber comprising an inlet surface provided with means for defining an image on a linear optical CCD detector receiving radiation from the illuminated position, so as to detect a luminous intensity peak in order to determine a geometric parameter representative of the position to be detected, and said device further comprising means for withdrawing the illumination means and detection means of the luminous intensity, to avoid projection of debris.
1 Assignment
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Accused Products
Abstract
A device for the detection and measurement of the position of a turning body (3) such as a wheel of an automotive vehicle, adapted to be driven in rotation, comprises a source of illumination (8) adapted to illuminate selectively the vicinity of the position to be detected and at least one detector (9) of the luminous intensity receiving the radiation of the illuminated position so as to determine the geometric parameter representative of the position (15) to be detected. Use in balancing turning bodies, particularly automotive vehicle wheels.
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Citations
5 Claims
- 1. In a device for the detection and measurement of a position on a turning body mounted on a balancing machine having means for driving the turning body into rotation about an axis of rotation, the device comprising in combination illumination means and at least one means for detecting luminous intensity receiving radiation from an illuminated position, the improvement wherein said illumination means include means for providing a light beam of substantially parallel rays with glancing incidence and the detector means of luminous intensity include a chamber comprising an inlet surface provided with means for defining an image on a linear optical CCD detector receiving radiation from the illuminated position, so as to detect a luminous intensity peak in order to determine a geometric parameter representative of the position to be detected, and said device further comprising means for withdrawing the illumination means and detection means of the luminous intensity, to avoid projection of debris.
Specification