| 摘要 |
A method and apparatus for measuring static, kinetic and pneumatic caster trail of a steerable, vehicle mounted wheel. The apparatus includes a pair of fore and aft spaced rollers which supportingly contact the wheel at two points of reference. The rollers are mounted both for rotary and non-rotary movement about their longitudinal axis. The swinging of the wheel away from a "straight ahead" direction results in a force being distributed by the wheel to the surfaces of said supports in a direction generally parallel to the longitudinal axes of said supports. The amount of force distributed along each roller in a direction longitudinally thereof is sensed, measured and compared one with the other to compute or determine static, kinetic and pneumatic caster trail.
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