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ENERGY ABSORBING SEAT SUPPORT ASSEMBLY

  • US 3,806,190 A
  • Filed: 07/20/1972
  • Issued: 04/23/1974
  • Est. Priority Date: 07/20/1972
  • Status: Expired due to Term
First Claim
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1. In combination with a vehicle including a floor and a seat, an energy absorbing seat support assembly comprising, an elongated first track member mounted on the floor extending longitudinally of the vehicle, an elongated second track member slidable on the first track member and supporting the seat for movement longitudinally of the vehicle, one of the track members including a pair of plastically deformable flange portions spaced laterally relative to each other and having generally continuous contours along the longitudinal length of this track member, these flange portions defining abrupt laterally spaced preformed depressions at a predetermined position along the length of the one track member, a die member with a pair of laterally spaced deforming portions, and means for mounting the die member on the other track member with the deforming portions received within the depressions defined by the flange portions of the one track member to plastically deform these flange portions when the seat moves longitudinally of the vehicle in response to abrupt vehicle acceleration or deceleration, the mounting means being readily adaptable to receive spacing members of various thickness between the die member and the other track member to control the degree the deforming portions are received within the depressions defined by the flange portions of the one track member and to thereby control the degree of plastic deformation and quantity of energy absorbed during a given unit length of seat movement.

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