Constant deceleration bumper
OwnerIsaak Garber, Lev J. Chudnovskyinventors
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Abstract
A bumper to absorb energy of motion during a motor vehicle collision, comprising a bumper beam and an energy absorber with a plunger having symmetric protuberances, so that the cross section of protuberances changes along their lengths, an outer tube, and a cutter that cuts off protuberances throughout movement of a collision, where cutting force is controlled by the cross-sectional area of protuberances and provides constant deceleration with minimum force applied to a passenger cabin.
Claims9
An energy absorber of a motor vehicle providing constant deceleration and minimum force, which applies to a passenger cabin for the period of a collision, comprising:
- an outer tube and a plunger having a plurality of symmetric protuberances, which is inserted within said outer-tube with an end, which has a free from protuberances segment, where a cross-sectional area of said protuberances changes along the length of said plunger, and a cutter, which is connected to said outer tube and touches protuberances, whereby a force of cutting off protuberances by said cutter is controlled by said cross-sectional area and provides constant deceleration of said passenger cabin.
An energy absorber of a motor vehicle providing constant deceleration and minimum force, which applies to a passenger cabin for a period of a collision, comprising:
- an outer tube having a plurality of symmetric protuberances on an inner surface, where a cross-sectional area of said protuberances changes along a length of said outer tube;
- a plunger which is inserted within said outer tube;
- and,
- a cutter which is connected to said plunger and touches said protuberances, whereby a force of cutting off said protuberances by said cutter is controlled by said cross-sectional area and provides constant deceleration of said passenger cabin.
An energy absorber of a motor vehicle providing constant deceleration and minimum force, which applies to a passenger cabin for a period of a collision, comprising:
- an outer tube and a plunger having a plurality of symmetric protuberances, which is inserted within said outer tube, an end of the plunger, which has a free from protuberances segment, where a cross-sectional area of said protuberances changes along a length of said plunger;
- and,
- a tool to remove said protuberances by plastic deformation, which is connected to said outer tube and touches said protuberances, whereby a force of plastic deformation of protuberances by said tool is controlled by said cross-sectional area and provides constant deceleration of said passenger cabin.
Dependencies are inferred from the claim text.