A vehicle wheel balancing machine having a rotating shaft which supports a vehicle wheel, a means for supporting the rotating shaft, and force sensor means adapted to detect the imbalance forces generated during the rotation of the rotating shaft; an accelerator means accelerates the shaft and the wheel and an angular sensor means senses an angular position; an electronic means processes information obtained by the force sensor means and determines the value and the position of correction masses adapted to compensate an imbalance present on the wheel; a moving indicator means is moved by a motorized actuator means and is configured to project a light dot on the wheel; a fixed indicator means projects a luminous beam, perpendicular to the axis of rotation, or a luminous dot, having a fixed and known angle of incidence on the inner surface of the wheel; a coincidence of the moving luminous point with the fixed luminous line or dot identifies a desired position of a counterweight on the diameter of the wheel.

A vehicle wheel service apparatus that includes: a frame; a plurality of working tools, connected to the frame and movable to perform operations for mounting and/or demounting the tyre relative to the wheel rim; a shaft driven by an actuator rotationally about a longitudinal axis and connectable to the rim; a measuring system for generating vibration signals representing vibrations of the shaft produced by wheel imbalances; a control unit, connected to the measuring system to receive the vibration signals; a support device, connected to the frame and movable between an activated position, where it encircles the shaft while still allowing it to rotate, and a deactivated position, where it is spaced from the shaft; a connector, movable between a working position, where it mechanically connects the measuring system to the frame, and a rest position, where the measuring system is mechanically disengaged from the frame.

The invention relates to a static wheel balancer (SWB); comprising a wheel carrier (WC); wherein the wheel carrier includes at least two wheel support elements (WSE); wherein the wheel support elements (WSE) supports and establish a reference for a selected edge of a wheel when the wheel is positioned in the wheel carrier, wherein the wheel support elements (WSE) defines a wheel positioning plane (WPP); and the static wheel balancer further comprising a weight measuring arrangement (WMA) including at least one load cell (EC); wherein a weight measuring point (WMP) of the load cell (EC) is arranged to measure a partial weight of the wheel (WH) at a selected wheel edge (WE) at a given angular orientation (AO) of the wheel (WH); and wherein the weight measuring point (WMP) is arranged at a predetermined distance (PD) to at least one of the at least two-wheel support elements (WSE); and wherein the weight measuring point (WMP) forms part of one of the at least two wheel support elements (WSE); and the static wheel balancer further including a display (DP) arranged to display a measure of imbalance obtained based on partial measured weight at the weight measuring point (WMP).

A weight apply system capable of changing tooling to apply weights to an assembly to correct unbalance. It may include a selectively movable arm, at least one weight apply tool, the ability to change the tooling based on assembly type, and a controller configured to manage the selection of the tool, loading the weight, and application of the weight to the assembly in station.

A method and a device for determining loads on vehicle's wheels, each with a tire, is disclosed. A deformation measured value and a pressure measured value for each tire, and at least one acceleration measured value for the vehicle are detected. For the respective wheels, dynamic wheel loads are calculated according to a first model and static wheel loads are calculated according to a second model. The second model comprises at least one model parameter calculated by statistical analysis of the calculated dynamic wheel loads, the calculated static wheel loads, and the detected at least one acceleration measured value. The at least one acceleration measured value is redetected and the dynamic wheel loads are recalculated from the previously calculated static wheel loads and the at least one detected acceleration measured value according to the second model using the previously calculated at least one model parameter of the second model.

The invention relates to a method for determining a wheel load (WL) acting on a tire (1) of a vehicle, comprising: a) determining a footprint (L) of the tire (1), b) receiving a tire information (ti) that identifies a type of the tire (1) and/or characterizes physical properties of the tire (1) as such, c) receiving tire operation conditions (toe) based on a measurement, d) selecting one of a plurality of predetermined calculation models (mod(ti)) based on the received tire information (ti), wherein each of the predetermined calculation models (mod(ti)) defines the wheel load (WL) as a function of the footprint (L) and the tire operation conditions (toe) for a respective tire type and/or respective physical properties of the tire (1) as such, e) calculating the wheel load (WL) based on the determined footprint (L) and the received tire operation conditions (toe), using the selected calculation model (mod(ti)). Further, a corresponding system (10) for determining a wheel load (WL) is proposed. Advantageously, the invention can be employed very universally and can deal with the problem of varying tire characteristics.

Apparatus and a method for transporting and positioning of balancing weights connected together to form a chain of balancing weights is disclosed. A drive means comprises at least a transport wheel and/or a transport belt. The drive means has at least one cam to interface with a gap between two adjacent balancing weights of the chain of balancing weights. Furthermore a cutter may be provided for cutting of balancing weights from the chain.

A weight applicator including a weight applicator head and at least one actuator is disclosed. The weight applicator head is adapted to carry a wheel balance weight and has a weight application surface with a weight retaining region and a leading rotation region. The at least one actuator is coupled to the weight applicator head for manipulating the weight applicator head in at least one direction. The at least one direction has a radial component. The leading rotation region is oriented to extend radially further than the weight retaining region.

An apparatus for balancing a wheel includes a tool that is mechanically coupled to an arm. The tool includes a leading edge, a trailing edge, and a face surface that forms an arc between the leading and trailing edges. The apparatus includes an arm control module that actuates the arm to position the leading edge of the tool a predetermined distance from an edge of a deck to receive a wheel weight. The apparatus includes a cutting apparatus for separating the wheel weight from a supply feed of wheel weight material. The apparatus includes a sensor that detects presence or absence of the wheel weight on the tool.

A wheel-balancing weight application apparatus comprising a supplying module including a first strip of wheel-balancing weights and a second strip of wheel-balancing weights, the first and the second strips of wheel-balancing weights including a different characteristic, and an application module for securing a portion of one of the first strip of wheel-balancing weights and the second strip of wheel-balancing weights to a wheel, wherein a selection of wheel-balancing weights from the first strip of wheel-balancing weights and the second strip of wheel-balancing weights is selected on a basis of a characteristic of the wheel to match the wheel-balancing weights characteristic with an identified characteristic of the wheel. A method of using the balancing weight application apparatus is also provided.