Described is a machine (1) for fitting and removing a tyre from a corresponding wheel rim of a vehicle, comprising: a wheel-holder unit (4), which rotates about a first axis (A); at least one bead breaker tool (29), movable along a second axis (B) parallel to the first axis (A); a roller (2) rotating about a fourth axis (D) parallel to the first axis (A) and configured to move by rotation about a fifth axis (E) spaced from the fourth axis (D), between an active position where it is in contact with a tyre tread of the wheel mounted on the wheel-holder unit (4), to a position of non-interference relative to the tyre; at least one sensor (40) connected to the roller (2) for detecting a signal representing a force transmitted to the roller (2) by the tyre; a removal tool (37), which is movable by rotation about a sixth axis (F) parallel to the first axis (A) and spaced from it, between a first position proximal to the first axis (A) and a second position distal from the first axis (A), which is movable in a direction parallel to the first axis (A) and movable towards and away from the sixth axis (F).

The present invention concerns a machine for treating a tired wheel, for example a machine for assembly and/or disassembly of a tired wheel, as well as a method for treating a tired wheel, for example an assembly and/or disassembly method.

A tyre changing apparatus (1) for demounting and mounting a tyre relative to a respective rim of a vehicle wheel (2) comprises: a frame (10); a chuck (11), connected to the frame (10) to rotate about an axis of rotation (A); a working tool (12), connected to the frame (10) and movable towards and away from the chuck; an electric motor (13), connected to the chuck (11) to impart a rotation speed and a working torque to it; a controller (14), including a power unit (141) configured to supply voltage and current as a function of a drive signal (101); a processing unit (142) configured to generate the drive signal (101) and programmed to derive a control parameter (102) representing the working torque delivered to the electric motor (13) and to apply a torque-limiting function as a function of the control parameter (102). The processing unit (142) is programmed to derive an activation parameter and, as a function of the activation parameter, to switch between an activated configuration, in which the torque-limiting function is enabled, and a deactivated configuration in which the torque-limiting function is disabled.

Described is a machine (1) for fitting and removing a tyre from a corresponding wheel rim of a vehicle, comprising: a wheel-holder unit (4), which rotates about a first axis (A); at least one bead breaker tool (29), movable along a second axis (B) parallel to the first axis (A); a roller (2) rotating about a fourth axis (D) parallel to the first axis (A) and configured to move by rotation about a fifth axis (E) spaced from the fourth axis (D), between an active position where it is in contact with a tyre tread of the wheel mounted on the wheel-holder unit (4), to a position of non-interference relative to the tyre; at least one sensor (40) connected to the roller (2) for detecting a signal representing a force transmitted to the roller (2) by the tyre; a removal tool (37), which is movable by rotation about a sixth axis (F) parallel to the first axis (A) and spaced from it, between a first position proximal to the first axis (A) and a second position distal from the first axis (A), which is movable in a direction parallel to the first axis (A) and movable towards and away from the sixth axis (F).

A method is presented for fitting a tyre onto a rim or removing a tyre from a rim in a tyre fitting machine using an appropriate tool. A wheel, a tyre/rim assembly, or the rim alone is caused to rotate about an axis of rotation, and at least one operating parameter of the tyre fitting machine is continuously monitored during the rotation to determine every actual value. Change in or gradient of such actual value is automatically monitored over time and each actual value found and/or the change in the value over time is compared with corresponding predetermined threshold values. The predetermined threshold values define a range of present values and/or change in values delimiting an accepted operating range for the tyre fitting machine, and the machine is controlled to maintain each measured present value and/or change therein over time within the range of corresponding predetermined threshold values.

The present invention relates to a method and an apparatus for mounting a tyre on a rim or demounting a tyre from a rim. The method includes the steps of rotating the wheel (tyre/rim assembly) by an electric motor about an axis, checking the current consumption of the electric motor during the mounting and demounting operation, and continuously and automatically adjusting a specific combination of torque and speed of the electric motor during the mounting/demounting operation. The apparatus for mounting a tyre on a rim or demounting a tyre from a rim comprises an electric motor for rotating the wheel (rim/tyre assembly) about an axis, a sensing device for sensing the motor current and transmitting corresponding signals to a control device and an adjustment controller for continuously and automatically adjusting a specific combination of torque and speed of the electric motor during the mounting/demounting operation.

The present invention relates to a method and an apparatus for mounting a tyre on a rim or demounting a tyre from a rim. The method includes the steps of rotating the wheel (tyre/rim assembly) by an electric motor about an axis, checking the current consumption of the electric motor during the mounting and demounting operation, and continuously and automatically adjusting a specific combination of torque and speed of the electric motor during the mounting/demounting operation. The apparatus for mounting a tyre on a rim or demounting a tyre from a rim comprises an electric motor for rotating the wheel (rim/tyre assembly) about an axis, a sensing device for sensing the motor current and transmitting corresponding signals to a control device and an adjustment controller for continuously and automatically adjusting a specific combination of torque and speed of the electric motor during the mounting/demounting operation.

The present invention relates to a method and an apparatus for mounting a tyre on a rim or demounting a tyre from a rim. The method includes the steps of rotating the wheel (tyre/rim assembly) by an electric motor about an axis, checking the current consumption of the electric motor during the mounting and demounting operation, and continuously and automatically adjusting a specific combination of torque and speed of the electric motor during the mounting/demounting operation. The apparatus for mounting a tyre on a rim or demounting a tyre from a rim comprises an electric motor for rotating the wheel (rim/tyre assembly) about an axis, a sensing device for sensing the motor current and transmitting corresponding signals to a control device and an adjustment controller for continuously and automatically adjusting a specific combination of torque and speed of the electric motor during the mounting/demounting operation.

A tire changer machine, and method of operation, configured to enable a single operator to carry out tire change procedures for a set of wheel assemblies by interleaving wheel assembly balancing procedures on a wheel balancer machine with an automated tire demount process carried out under direction of a control system of the tire changer without continuous operator input or supervision.

An apparatus for use in measuring a parameter is provided that includes a pry end, a handle, and a sensor that detects a parameter imparted onto the apparatus when the handle is grasped and the pry end is between a tire and a wheel. An output member is also included that outputs the parameter received from the sensor. The handle, the sensor and the output member are part of an electronic torque wrench.