Abstract: An apparatus is provided for guiding a vehicle onto a service lift having a pair of runways for receiving the wheels of the vehicle. In one embodiment, sensors attached to the runways generate sensor signals responsive to a position of the vehicle relative to the runways. The sensor signals are processed to determine and monitor the position of the vehicle relative to the runways, and a visual reference is displayed to guide an operator of the vehicle to drive the vehicle wheels onto the runways. In another embodiment, each runway includes a turntable for receiving the wheels. An actuator is connected to one runway and to its corresponding turntable, and is configured to move the turntable relative to the runway. The sensor signals are processed to determine the position of the vehicle relative to the runways, and to cause the actuator to align the turntable with the vehicle wheel.

Abstract: A wheel clamp attaches to a vehicle wheel for performing a wheel alignment on the vehicle. The wheel clamp has a body for supporting a target or measuring head, and three elongated arms mounted to the body. Each arm has a gripping portion for gripping the tire's tread surface. A self-centering linkage has enmeshed gears that, when rotated, cause the elongated arms to simultaneously proportionally move relative to the clamp body. An attachment interface mechanically connected to the self-centering linkage is configured to engage with a rotational actuator. Alternatively, the wheel clamp includes an actuator mechanically coupled to the self-centering mechanism. Activation of the actuator causes the gripping portions of the arms to engage and grip the tire tread surface and tighten the clamp onto the tire.

Abstract: A wheel clamp attaches to a vehicle wheel for performing a wheel alignment on the vehicle. The wheel clamp has a body for supporting a target or measuring head, and three elongated arms mounted to the body. Each arm has a gripping portion for gripping the tire's tread surface. A self-centering linkage has enmeshed gears that, when rotated, cause the elongated arms to simultaneously proportionally move relative to the clamp body. An attachment interface mechanically connected to the self-centering linkage is configured to engage with a rotational actuator. Alternatively, the wheel clamp includes an actuator mechanically coupled to the self-centering mechanism. Activation of the actuator causes the gripping portions of the arms to engage and grip the tire tread surface and tighten the clamp onto the tire.

Abstract: An apparatus is provided for guiding a vehicle onto a service lift having a pair of runways for receiving the wheels of the vehicle. In one embodiment, a machine vision wheel alignment system including an image sensor, a processor, and a display provides a visual display of the vehicle and the runways to guide an operator of the vehicle to drive the vehicle wheels onto the runways. In other embodiments, a pair of runway targets and a vehicle target are viewed by a pair of image sensors of a machine vision wheel alignment system. Image signals from the image sensors are processed to determine respective positions of the runways and to monitor a position of the vehicle relative to the runways, and a visual reference is displayed to guide an operator of the vehicle.

Abstract: An apparatus is provided for guiding a vehicle onto a service lift having a pair of runways for receiving the wheels of the vehicle. In one embodiment, a machine vision wheel alignment system including an image sensor, a processor, and a display provides a visual display of the vehicle and the runways to guide an operator of the vehicle to drive the vehicle wheels onto the runways. In other embodiments, a pair of runway targets and a vehicle target are viewed by a pair of image sensors of a machine vision wheel alignment system. Image signals from the image sensors are processed to determine respective positions of the runways and to monitor a position of the vehicle relative to the runways, and a visual reference is displayed to guide an operator of the vehicle.

Abstract: An apparatus is provided for guiding a vehicle onto a service lift having a pair of runways for receiving the wheels of the vehicle. In one embodiment, a light beam is directed toward the vehicle along the lift center line between the runways, to provide a visual reference to guide an operator of the vehicle to drive the vehicle wheels onto the runways. In another embodiment, cameras of a machine vision wheel alignment system provide a visual display of the vehicle and the runways. In other embodiments, runway and vehicle targets are viewed by image sensors of a machine vision wheel alignment system. Image signals from the image sensors are processed to determine respective positions of the runways and to monitor a position of the vehicle relative to the runways, and a visual reference is displayed to guide an operator of the vehicle.

Abstract: A vehicle wheel alignment system may include wheel alignment sensors configured to measure toe angles of steerable wheels on the vehicle, a user interface configured to communicate information to a user, and a processing system. The processing system may be configured to cause the user interface to communicate instructions to rotate a steering wheel on the vehicle and to communicate centering information that is pertinent to whether the steering wheel is substantially centered with respect to the steerable wheels based at least in part on the toe angles.

Abstract: The disclosure herein relates to an alignment system and method which provides improved accuracy measurement of vehicle wheel alignment characteristics, guidance for an operator through known yet obscure adjustment procedures, an interface between system alignment sensors and the system controller which provides efficient handling of system generated data and system inputs and outputs, and live measurements and display of all alignment quantities so that interdependent changes between adjustable alignment quantities are observable.

Abstract: Devices for demonstrating the effect that eccentricities in a tire and rim can have when the combination is rotated having a circular member representing a rim mounted for rotation about a center different from its geometric center and an annular member representing a tire with a varying radial dimension is positioned and retained at a plurality of angular positions on the circle member. An indicator operatively associated with the annular member represents the resulting eccentricity of both members. A similar hand-held device represents that combined eccentricity by conveying vibrations through a handle to the operator's hand.