Abstract: A description is provided of a vehicle lift (10) of the type with four columns, in which the vertical movement of the cross-beams (14) and of the runways (16) along the columns (12) is controlled by means of two pistons (18), each of which is accommodated inside a respective cross-beam (14), of which it controls the movement. The lift (10) provides considerably simplified assembly, and the possibility of replacing or displacing the runways (16).

Abstract: A method and an apparatus for scanning a vehicle wheel, wherein a location on the wheel is sensed by means of a light beam emitted by a light source and is reflected to a position-sensitive receiver. The spacing of the sensed location relative to a reference location is measured from the directions of the emitted beam and the reflected beam. The light source and the position-sensitive receiver are synchronously pivoted about a common axis by means of a rotary drive including a stepping motor for successive measurement steps. A rotary angle sensor supplies signals proportional to the rotary position of the stepping motor to an evaluation system.

Abstract: A method and an apparatus for calibrating an unbalance measuring apparatus, in which in a calibration run two calibration masses of the same or different sizes are simultaneously caused to rotate about a measuring axis in two axial calibration planes, wherein a calibration mass rotating about the measuring axis is simulated in another axial plane.

Abstract: A description is provided of a scissors-type vehicle lift (10), in which the arms (12-22) of the scissors have a transverse cross-section substantially in the shape of a “P”, the cross-sections of the arms of adjacent pairs of arms being overturned relative to one another, such that when the scissors are closed, the said transverse cross-sections partially fit into one another.

Abstract: A telescoping bar includes a track pusher for adjusting and measuring the track on a motor vehicle's wheels. A pneumatic spring, housed within the telescoping bar, functions as an accumulator and applies expansion forces on either the two front wheels or two rear wheels of the vehicle.

Abstract: The invention concerns an apparatus and a method for the chassis measurement of vehicles such as motor vehicles, wherein the apparatus includes a vehicle lift platform with which a chassis to be measured can be reversibly lifted and an axle measurement lifting device with which an axle measuring unit can be reversibly lifted. The axle measurement lifting device has at least two lifting stages which are actuable reversibly independently of each other.

Abstract: An apparatus for pressing a pneumatic tire off a rim of a motor vehicle wheel comprises a pressing blade for removing the tire by pressing it off the rim. The pressing blade is mounted pivotably on a support structure of the machine in a substantially horizontal plane of pivotal movement. The apparatus includes a lift means for lifting the motor vehicle wheel in a standing position with its wheel axis into the horizontal plane of pivotal movement of the pressing blade.