Methods and apparatus for facilitating a measurement taken from a vehicle wheel axis

摘要

In order to check a vehicle for sagged coil springs, vertical distances are measured between the axis of each wheel and a predetermined location on the vehicle body, e.g., the underside of the fender. Those measured distances are compared with established values for that vehicle make and model. To facilitate that measurement a tool is elastically bent and the ends of the tool are mounted by friction-fit against the inside periphery of a wheel rim. The bent tool forms a convex bulge, the apex of which is aligned with the wheel axis and is disposed in or near a vertical plane in which the measurement is to be made. A reference mark provided at the apex of the bulge facilitates a measurement with a ruled tape measure.