A working head (1) for an apparatus (100) for mounting and demounting a tyre to and from a corresponding rim (C) of a vehicle wheel comprises: a contoured element, having a first end (2A) and a second end (2B), spaced from each other along a longitudinal orientation (L) and including a demounting guide (22) and a mounting guide (21) juxtaposed with the demounting guide (22) along a transverse orientation (T) perpendicular to the longitudinal orientation (L); a gripping tool (3), movable in a working plane perpendicular to the transverse orientation (T) between a gripping position (PP), where it is operatively interposed between the rim and the tyre, and a prising position (PS), where the gripping tool (3) is lifted longitudinally relative to the second end (2B) of the contoured element (2); a transmission unit (4) connectable to an actuator (103) and to the gripping tool (3) and configured to move the gripping tool (3). The demounting guide (22) is interposed, along the transverse orientation (T), between the gripping tool (3) and the mounting guide (21) of the contoured element (2), the mounting guide being removably connected to an arm (102) of the apparatus (100).

The present invention concerns a device for assembling-disassembling a tired wheel (TW) comprising a support component, an extension or stem component connected to the support component, a working tool articulated to the extension or stem component and actuation means intended to drive the sliding of the extension or stem component with respect to the support component.

A tire demounting device includes a hook member having an elongate body that forms a hook at an end to be disposed lowerly and has a connection point at an opposite end, a pair of parallel plates having the hook member roto-translationally movable therebetween, a connection system that connects the plates to a support element, a drive system that moves the body between an inserted position to fit between a tire and the edge of a rim, and a removal position to remove the tire from the rim, the drive system being connected to the connection point, a connecting rod having one end hinged to the body and an opposite end hinged to the plates, so as to rotate parallel thereto along a circular arc path, the body having a pin, which is supported transverse and perpendicular to the plates, which have a specially shaped guide track for the pin.

The device for removing and mounting tires from/onto rims (C) includes: a hook able to be introduced between a bead of a tire and an edge of a rim (C) on which the tire is mounted; means for moving the hook alternatively between a position external to the bead and the edge of the rim (C) and an inserted position, according to a trajectory (T) of movement over the edge without contact, and including: first connecting rod means for dragging the hook; second connecting rod means for guiding the hook; driving means rotatably integral with the first connecting rod means by means of a transverse pin.

A tired wheel comprising at least one base structure, at least one support arm connected to said at least one base structure so as to be angularly displaceable with respect thereto, actuation means for actuating the support arm designed to angularly displace the arm with respect to the at least one base structure, and a demounting tool connected to the support arm so as to be angularly displaceable with respect thereto.

A tire-lever device for tire-changing machines includes a substantially vertical support arm associated with a tire-changing machine and having upper and lower ends; a pair of substantially vertical and parallel plates integrally extending from the opposite lower end; a connecting rod system, hinged between the pair of plates and including first and second connecting rods; a tire-lever tool with an elongate body defining an upwardly-facing first end and a second end opposite thereto, formed as a hook portion and hinged to the first and second connecting rods and forming an articulated quadrilateral with the latter and said plates; an actuator rotatably actuating the connecting rod system and mounted onto the support arm; a connector element connecting the actuator to the connecting rod system and defining an end hinged to the actuator and an opposite end directly hinged to the first end of the elongate body of the tire-lever tool.

The present invention concerns a tyre-changing machine provided with a basic structure that can rest on the ground, a retaining and rotation unit mounted on an upper part of the structure and adapted to retain and set the rim (C) of a wheel (R) in rotation around an axis of rotation of the wheel (Z-Z) and a holding column associated with the retaining and rotation unit and intended to support a tool for mounting/disassembling a tyre (P) onto/from the rim (C) of the wheel (R). Advantageously, the tool comprises a hooked end which can rotate passively around an axis of rotation (X-X) orthogonal to the axis of rotation of the wheel (Z-Z).

A tire changer demount tool assembly configured to automatically orient towards a tire and wheel assembly secured for rotation about a drive assembly of a tire changing machine. The demount tool assembly including a linearly driven demount tool biased to traverse a predetermined path of motion during a tire demount procedure.

Provided is dismounting machine for dismounting a tire from a rim, including a supporting base frame that is provided with a vertical carrying body for a rim, wherein said carrying body is connected to the base frame, is rotatable by a motor relative to the base frame about a rotation axis that extends in a vertical direction, and is provided with fastening means for fastening a rim in a fixed position on an upper side of the carrying body, so that a principal axis of the rim thus fixed extends in a direction that coincides with the central rotation axis of the carrying body, so that rotation of the carrying body leads to rotation of the fixed rim about the principal axis, and a vertical column connected rigidly to the base frame, which is located at a distance from the carrying body, said column being provided with a guide arm and an auxiliary arm, which extend from the column in the direction of the carrying body, and which, movable independently of one another, are connected to the column, so that the guide arm and the auxiliary arm can be placed independently of one another in a working position as separate tools for dismounting a tire from a rim fixed on the carrying body.