Assembly for testing shock absorbers incorporated in vehicles

An assembly for testing a shock absorber associated with a wheel pair of a spring suspended vehicle having a vehicle body, said assembly comprising

• a. a step to produce a drop motion of said wheel pair so that said vehicle body will rise in oscillation under the influence of springs but damped by a shock absorber after dropping motion thereof,
• b. means for indicating the condition of a shock absorber of said wheel pair by evaluating the acceleration inherent in the rise of said vehicle body during the first oscillation and first oscillation only of said vehicle body after dropping motion thereof, said means comprising
• i. means for sensing the acceleration of said vehicle body during the rise thereof, said means including an inertia body member which is freely mounted for vertical movement in a vertical path,
• ii. means for mounting said sensing means to a body component of said vehicle body in the vicinity of a shock absorber to be tested,
• iii. means extending into the vertical path of movement of said inertia body member for generating a signal upon movement of said body member in said vertical path more than a predetermined amount, and
• iv. an indicating device responsive to the signal generated by said signal generating means for indicating movement more than said predetermined amount by said body member.