Patent ID: 8905112

Claim:
A demounting device applicable to a tire demounting machine for demounting the second bead of a tire from a rim rotatably mounted on the tire mounting demounting machine around a rotation axis, after the first bead of said tire has already been demounted from the first edge of the rim, said device comprising a support member translatable along a movement axis that is substantially parallel to said rotation axis, means for driving said support member, a tool-holder arm borne by said support member, an abutment element and an extraction member both supported by said tool-holder arm, said abutment element having a substantially flat work surface and being designed to externally abut at said work surface against said second bead and to move it via said means for driving close to a first edge of said rim, wherein said extraction member is movable in a substantially transverse direction with respect to said rotation axis of said rim adjacent to said work surface between a withdrawn rest position inside the bulk of said abutment element and an extended work position in order to be inserted between said abutment element and said second bead.