Apparatus for monitoring tread thickness during tire buffing

Details Apparatus for monitoring tread thickness during tire buffing Apparatus for monitoring tread thickness during tire buffing

B - Operations, Transporting

24

B

B24B 5/36 (2006.01) B24B 49/04 (2006.01) B29D 30/54 (2006.01)

Patent

CA 2352965

An apparatus (20) for monitoring the depth of tread (4) on a tire (5) being buffed includes a sensing device (74), for example, a magnetic sensor, mounted to a reciprocating motion carrier (30). The carrier (30) is driven by a drive wheel (38) that is in contact with the tire (5) being buffed. The carrier (30) is movably mounted to float over the surface (9) of the tire (5), that is, accommodate variations in the tire surface (9), with a guide wheel (72) following the tire surface (9) to maintain the sensor (74) at a constant distance from the tire surface (9). The sensor (74) on the carrier (30) reciprocally traverses the crown (9) of the tire (5) as the tire rotates to obtain actual values for the thickness of the rubber above the belts over the whole surface of the crown (9).

L'invention concerne un appareil (20) permettant de contrôler la profondeur de la bande de roulement (4) d'un pneu (5) au cours de son polissage. Ledit appareil comprend un dispositif de détection (74), par exemple un capteur magnétique, monté sur un support (30) à mouvement alternatif. Le support (30) est entraîné par une roue (38) d'entraînement en contact avec le pneu (5) en cours de polissage. Le support (30) est monté de manière amovible, suspendu au-dessus de la surface (9) du pneu (5) pour recevoir les variations de la surface (9) du pneu, une roue (72) de guidage suivant la surface (9) du pneu afin de maintenir le capteur (74) à une distance constante de la surface (9) du pneu. Le capteur (74), situé sur le support (30), parcourt selon un mouvement alternatif la couronne (9) du pneu (5) pendant que celui-ci est en rotation afin d'obtenir des valeurs réelles sur l'épaisseur du caoutchouc recouvrant les courroies sur toute la surface de la couronne (9).

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