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Vehicle seat assembly having a hardness gradient via “A” surface intrusions and/or protrusions

  • US 7,661,764 B2
  • Filed: 08/30/2006
  • Issued: 02/16/2010
  • Est. Priority Date: 08/30/2006
  • Status: Active Grant
First Claim
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1. A vehicle seat assembly for use by an occupant, the vehicle seat assembly comprising:

  • a frame; and

    a cushion supported on the frame, the cushion having an A”

    surface, facing away from the frame, a “

    B”

    surface disposed adjacent to and facing the frame, a central portion, and two bolster areas, with each bolster area being adjacent the central portion, the cushion having a plurality of intrusions extending from the “

    A”

    surface towards the “

    B”

    surface to form a hardness gradient between at least one of the bolster areas and the central portion of between 8% to 25%, the intrusions decreasing in size as they extend from that “

    A”

    surface towards the “

    B”

    surface, and wherein the cushion comprises a seat bottom cushion, with the central portion having a front half having a lower hardness than the rear half.

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