초록 ▼

A bumper/energy absorber system is resiliently mounted at the body mounting location to allow the bumper/energy absorber system to vibrate freely both vertically and in pitch at its natural frequency. The mounting spring rate is selected to use the dynamic energy of the bumper/energy absorbing syste

A bumper/energy absorber system is resiliently mounted at the body mounting location to allow the bumper/energy absorber system to vibrate freely both vertically and in pitch at its natural frequency. The mounting spring rate is selected to use the dynamic energy of the bumper/energy absorbing system to attenuate steering column vibrations excited through the vehicle body structure by the shaking forces of the engine within a predetermined speed range. The mounting is designed to minimize bumper movement relative to the body from forces directly applied to the bumper from loads such as bumper jacking.

대표청구항 ▼

A tuned bumper for a motor vehicle having a vehicle body and a vehicle steering column therein to damp vibrations of said vehicle body and said steering column comprising in combination an external bumper disposed at one end of said vehicle body, said vehicle body having support structure for carryi

A tuned bumper for a motor vehicle having a vehicle body and a vehicle steering column therein to damp vibrations of said vehicle body and said steering column comprising in combination an external bumper disposed at one end of said vehicle body, said vehicle body having support structure for carrying the load of said bumper, connector means for operatively interconnecting said bumper to said support structure, said connector means comprising elongated and telescopic energy absorber means for absorbing the energy of an impact load on said bumper displacing said bumper from a first position outwardly of said vehicle body to a second position adjacent to said support structure, said shock absorber having an inner end spaced from and normally free from contact with said support structure, and resilient elastomer block means preloaded and operatively interposed only between an intermediate portion of said energy absorber means and said support structure to physically space and resiliently isolate said bumper and said energy absorber means from said support structure to allow said bumper to vibrate vertically and in pitch to act as a dynamic vibrating mass to damp vibrations of said vehicle body and components therein.