Boots – shoes – and leggings – Soles – Cushion
Patent
1997-01-17
1999-07-27
Kavanaugh, Ted
Boots, shoes, and leggings
Soles
Cushion
36 31, 36 59C, 36 59A, A43B 1318, A43C 1502
Patent
active
059269740
ABSTRACT:
Footwear intended primarily for outdoor use, wherein a variety of ground conditions are likely to be encountered, has a sole with traction elements inspired by the hoof of a mountain goat. In several embodiments, an interior region of the sole is provided with a plurality of pairs of relatively soft protruding pods, while a perimetric region surrounding the interior region includes a plurality of relatively hard lugs provided on opposite sides of the pod pairs. The pods extend downwardly below the lugs such that they will make initial ground contact and compress. The compression cushions initial impact and increases the area of ground contact to improve traction on firm smooth surfaces. The compression also brings the lugs into ground engagement, following initial contact, to improve stability and traction on irregular and soft ground surfaces. Other embodiments of the invention implement similar principles, in soles having a more conventional (less goat hoof-like) appearance. In one embodiment, relatively soft rubber outsole lugs take the place of the pods. In another embodiment, the sole includes combination lugs including relatively hard and soft portions of differing height. In a further embodiment, an interior region of a water sandal sole includes relatively soft traction elements in the form of relatively large soft regions of the midsole covered with a thin layer of rubber outsole material; the interior region is surrounded by a perimeter of hard lugs.
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Kavanaugh Ted
Nike Inc.
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