Patent ID: 7089776

Claim:
A jig for use in certification of accuracy of a vehicle wheel aligner system, comprising: two axles of equal length; two side spacers of equal length; a coupler at each end of each of the two side spacers, allowing attachment of the two side spacers to ends of the two axles, to thereby form a parallelogram frame from the axles and side spacers, and to allow detachment of the two side spacers from the ends of the axles to disassemble the frame; a diagonal spacer, for use in setting length of a diagonal of the frame during assembly of the frame, such that the frame becomes rectangular; four structures for simulating vehicle wheels, each respective structure being adapted to facilitate attachment thereto of a head of a vehicle wheel aligner system under test, and each respective structure being mounted on one end of one of the axles; and a stand system adapted to support the frame in a position to allow the vehicle wheel aligner system under test to measure a parameter of the apparatus from the attached heads of the vehicle wheel aligner system under test, for comparison to a known parameter of the jig.