(19)
(11) EP 0 130 816 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.05.1985 Bulletin 1985/21

(43) Date of publication A2:
09.01.1985 Bulletin 1985/02

(21) Application number: 84304472

(22) Date of filing: 29.06.1984
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI NL SE

(30) Priority: 01.07.1983 US 509921

(71) Applicant: Wolverine World Wide, Inc.
 ()

(72) Inventors:
  • Hill, Irving David
     ()
  • Turner, Jerome Allen
     ()

   


(54) Athletic shoe sole and method of manufacture


(57) An athletic shoe sole and a method of making the same which includes a pre-formed structure (20) having a plurality of dividers (22) that define a plurality of cells (24), the cells having therein an expanded, resilient material (40) such that the resilient material and therefore the sole has a varied hardness, the hardness being greater in zones (42) closer to the dividers than the hardness of zones (44) removed from the dividers. The pre- formed size and shape of the cells may vary throughout the extent of the sole, resulting in a gradually-varying average hardness. At least part of the compression properties may result from the mechanical properties of the dividers (22) themselves.






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