Patent ID: 7503602
Filing Date: 2009-03-17
Classification: B60R,F16F

Abstract:
1. An energy-absorbing bumper for a vehicle comprising: a housing that includes a pair of interlocking supporting frames, one of the supporting frames being fixed to the vehicle; a plurality of rebounding means fixed within one of the supporting frames of the housing, each rebounding means having a rebounding means spring coefficient; and a plurality of biasing means fixed within the other one of the supporting frames of the housing, each biasing means having a biasing means spring coefficient not equal to the rebounding means spring coefficient, each of the biasing means abutting one of the rebounding means; whereby when the interlocking supporting frames of the housing are compressed in a vehicle collision, the plurality of rebounding means together with the plurality of biasing means absorb the collision energy and are compressed at differing rates.