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Deformable load support member having a transversely stiff core

  • US 4,687,079 A
  • Filed: 02/13/1986
  • Issued: 08/18/1987
  • Est. Priority Date: 10/19/1977
  • Status: Expired due to Term
First Claim
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1. An elongated support member for positioning between a load and a transversely concavely curved support surface, said member being adapted to uniformly support said load over the length of said member, comprising:

  • a longitudinally extending peripherally closed outer member formed of a semi-rigid material capable of limited deformation under load and of substantial recovery after load removal;

    a resilient filler material substantially filling the interior of said outer member, said filler material being capable of limited deformation under load and of substantial recovery after load removal, said filler material comprising a continuous web of cellulosic material; and

    a hollow core member extending longitudinally of said support member, said filler material being wound on said core member prior to containment thereof within said outer member, said core member having substantially greater width than height in cross sectional configuration after containment in said outer member when said support member is in an unloaded state thereby having its greatest stiffness is a horizontal, transverse direction and assisting to place the portion of said filler material therebelow in tension when said support member is under load transverse to the axis of elongation of said support member.

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