Patent ID: 8684060
Filing Date: 2014-04-01
Classification: B60C,Y10T

Abstract:
1. A tyre-changing machine comprising support means ( 4 ) for a wheel, a tool-bearing arm ( 50 ) at an end of which a bead-breaking tool ( 6 ) is hinged according to a hinge axis (E) which is perpendicular to an axis (A) of the wheel, and first motorised means ( 32 , 33 ) for causing a relative movement, in a parallel direction to the axis (A) of the wheel, between the support means ( 4 ) and the tool-bearing arm ( 50 ), such as to press the bead-breaking tool ( 6 ) against a flank of a tyre on the wheel, wherein said machine comprises second motorised means ( 64 ), able to activate independently from the first motorised means ( 32 , 33 ), which second motorised means ( 64 ) are destined to rotate the bead-breaking tool ( 6 ) about the hinge axis (E) with the tool-bearing arm ( 50 ), in order to vary an inclination of the bead-breaking tool ( 6 ) with respect to the axis (A) of the wheel which is mounted on the support means ( 4 ), wherein the second motorised means ( 64 ) are controllable such as to be able to rotate the bead-breaking tool ( 6 ) continuously between two extreme end positions in both directions and to be able to stop the bead-breaking tool ( 6 ) in intermediate positions between the end positions, wherein a tyre-demounting tool (