Patent ID: 8826962

Claim:
Upgraded bead breaking unit for tire changing machines or the like, comprising an arm having a bead breaking tool and associated rotatable with a supporting structure between an away position, wherein said bead breaking tool is substantially spaced out from said supporting structure, and a work position, wherein said bead breaking tool is substantially placed near said supporting structure, at least an actuator apparatus having at least a mobile element associated sliding with said arm, at least a dragging device for dragging said arm, associated with said mobile element and suitable for operating during the movement of said mobile element from an extracted position to a retracted position to bring said arm to said work position and at least a temporary coupling device between said mobile element and said arm, suitable for operating during the movement of said mobile element from said retracted position to said extracted position to bring said arm from said work position to said away position, wherein said bead breaking unit comprises at least a selection device associated with said temporary coupling device and suitable for operating/disconnecting said temporary coupling device.