Abstract: A wheel guard arrangement in a wheel balancing machine in which the wheel guard member is formed by a flexurally elastic plate which is guided on the machine housing pivotably by a frame. In the open position of the wheel guard arrangement the flexurally elastic plate is flat and positioned vertically and in the closed position it is of an arcuate configuration extending over a wheel to be balanced.

Abstract: An unbalance measuring machine has an arrangement for clamping and release a motor vehicle wheel or other rotary member on a motor-driven shaft. The machine has a bar which is guided movably in the shaft in its axial direction. The bar is engaged at one end with the rotary member and at the other end with a belt pulley via interengaged screw threads. When the belt pulley is driven by the drive motor in one direction of rotation, the bar axially clamps the rotary member on the shaft to hold it fast. When the belt pulley is driven by the drive motor in the other direction, the bar moves in the opposite direction to release the rotary member.

Abstract: A balancing machine for vehicle wheels of different sizes and types includes a main shaft, structure for mounting a wheel on the main shaft, and for unbalance measurement which is related to at least one compensating plane of the wheel, sensing structure for detecting a spacing of the at least one compensating plane relative to the machine and for detecting a compensating radius on the wheel.

Abstract: An apparatus for fixing a balancing weight having an adhesive layer thereon to a vehicle wheel at a balancing position comprises a holder having at least first and second holding portions for holding a balancing weight under a spring force. The holder is guided to a balancing position on the wheel by a guide so that an edge of the adhesive-bearing surface of the balancing weight is applied to or contacts the wheel at the desired balancing position. Pressure is then directed towards the balancing position and applied to the balancing weight causing the balancing weight to be released from the holder and pivoted about the edge that bears against the wheel at the balancing position so that the whole adhesive layer is pressed against the wheel surface.

Abstract: A method of correcting unbalance on a motor vehicle wheel by means of at least one balancing weight which can be fixed to the wheel at appropriate positions ascertained by an electronic measuring apparatus during an unbalance measuring procedure involves the use of a sensing device which is coupled to the electronic measuring apparatus and which senses relevant dimensions of the wheel for storage thereof in the electronic measurement apparatus, for evaluation of the measurement values obtained in the unbalance measuring procedure.

Abstract: A balancing machine for motor vehicle wheels of different sizes and types has a clamp for clamping wheels on a main shaft of the machine. To measure an unbalance related to one or more compensating planes of the wheel, the machine determines the spacing of the compensating plane (or planes) relative to the machine and ascertains the compensating radius on the wheel. To perform this function, the machine has a sensing member which can be extended in a common plane with the longitudinal center line of the main shaft and which supplies electrical signals to an evaluation device in which unbalance measurement values which are ascertained during one or more measuring runs are evaluated to determine the unbalance of the wheel. The sensing member also has an angle measuring device that measures an angular position of the sensing member (or a part of the sensing member) which is proportional to the compensating radius to be detected.