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Sole structure of athletic shoe

  • US 6,711,834 B1
  • Filed: 09/21/2001
  • Issued: 03/30/2004
  • Est. Priority Date: 06/12/2000
  • Status: Expired due to Fees
First Claim
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1. A sole structure of an athletic shoe comprising:

  • an upper midsole that is formed of a soft elastic material and that extends from a heel portion of said sole structure to a forefoot portion of said sole structure;

    a lower midsole that is formed of a soft elastic material and that is disposed at least at a part of said heel portion under at least a part of said upper midsole;

    a wavy plate that is provided between said upper midsole and said lower midsole and that has a wavy configuration at least at said heel portion and progressing to a midfoot portion of said sole structure;

    an outsole fitted to a bottom surface of said lower midsole; and

    a shock absorbing member that is formed of a viscoelastic material having at least 70% energy loss, and that is arranged in said heel portion between said wavy plate and said outsole and extending from a rearmost end of said heel portion to a rear edge of said lower midsole in said heel portion.

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