Machine for mounting and/or removing vehicle wheels, in particular truck wheels

A method for removing a tyred wheel comprising the following steps,

• arranging a machine for mounting and/or removing tyred wheels for vehicles comprising a framework, means for dragging a wheel in rotation around a first rotation axis, said dragging means having a portion for coupling to said framework as well as a portion for working or engaging a rim of a tyred wheel which projects from said coupling portion in the direction of the front of the machine and moving away from the rear of the machine, said machine further comprising at least one first arm extending from or supported by said framework and at least one first mounting and/or removal tool supported by said at least one first arm, said at least one first arm being displaceable between at least one first receded or retracted inoperative position, wherein said at least one first tool is in a position closer to the rear of the machine and farther from the front of the machine and at least one second operative position, wherein said at least one first tool is in an advanced position proximal or next to or closer to said front of said machine and farther from said rear of the machine, so that said at least one first tool is designed to act or engage or push on a first side of a wheel or better on a first circumferential bead of a tyre mounted on the means for dragging in rotation which is closer to the coupling portion with respect to a second side of the respective wheel or to a second circumferential bead of a tyre, wherein said first arm and thus said at least one first tool are displaceable between said at least one first inoperative position and said at least one second operative position substantially parallel to the rotation axis when moving from said at least one first to said at least one second position;
• mounting and locking the wheel to be disassembled on the dragging means,
• bringing the first tool with work front or end facing towards the circumferential area of the tyred wheel for contact between the tyre and the rim,
• commanding or controlling the displacement of the first arm between a first receded inoperative position and a second operative or removal position along a direction substantially parallel to said first rotation axis, so that the first tool is brought into contact and thrust on a portion of a first side of a wheel or better of a first circumferential bead of a tyre mounted on the means for dragging in rotation,
• actuating the means for dragging in rotation or keeping them actuated so as to drag the tyred wheel in rotation and continue to control the advancement or displacement of the first arm so that the first tool pushes the tyre so as to carry it with both of its circumferential beads beyond the rim or better outside the groove defined between the circumferential edges, and
• picking up the tyre.