초록 ▼

An electronic aligner head is mounted on one rear wheel of a vehicle. The aligner head projects a light beam toward the front wheel on the same side of the vehicle. A centering gage is adapted to contact lower points on the inner flanges of each of the rear wheel rims. A lateral arm is connected to

An electronic aligner head is mounted on one rear wheel of a vehicle. The aligner head projects a light beam toward the front wheel on the same side of the vehicle. A centering gage is adapted to contact lower points on the inner flanges of each of the rear wheel rims. A lateral arm is connected to a housing on the centering gage. The lateral arm extends past the one rear wheel and carries a centering gage head on the free end. The arm is adjustable in length to place the centering gage head at the same lateral distance from the chassis centerline as the light beam projector. The centering gage is removed from the position between the rear wheel rims and placed in a similar position between the front wheel rims. The centering gage head is configured to either reflect the beam back to a light beam detector on the aligner head or alternatively to direct the beam to a detector in the gage head. The detector provides a signal indicative of the toe of the one rear wheel.

대표청구항 ▼

Apparatus for measuring the toe of one of a pair of nonsteerable wheels on a vehicle relative to the centerline of the vehicle chassis, wherein an alignment head is mounted on the one nonsteerable wheel casting a light beam forwardly of the chassis in a direction substantially parallel to the plane

Apparatus for measuring the toe of one of a pair of nonsteerable wheels on a vehicle relative to the centerline of the vehicle chassis, wherein an alignment head is mounted on the one nonsteerable wheel casting a light beam forwardly of the chassis in a direction substantially parallel to the plane of rotation of the one wheel, wherein a light beam detector is provided in a vertical plane through the projector extending parallel to the chassis centerline, and wherein a centering gage is adapted to extend between any pair of vehicle wheels, said centering gage comprising a housing, means for maintaining said housing in a constant position relative to the center point between the any pair of vehicle wheels, a laterally extending arm mounted on said housing having an outer end reaching outboard of one of the wheels in the pair, a centering gage head attached to said outer end of said arm and having an aperture thereon operating to receive a portion of the light beam, means for adjusting the length of said laterally extending arm to place said aperture in the aforesaid vertical plane parallel to the chassis centerline, said aperture being in optical communication with the light beam detector, whereby a signal indicative of the toe of the one nonsteerable wheel relative to the chassis centerline is provided in response to sensing of said light beam portion.