Boots – shoes – and leggings – Soles – Rubber
Patent
1980-09-10
1983-02-08
Kee Chi, James
Boots, shoes, and leggings
Soles
Rubber
36 59C, 36 67A, 36114, D 2321, A43B 1304, A43B 1318, A43B 1326, A43B 500
Patent
active
043720587
ABSTRACT:
A shoe sole having a tread preferably defining a longitudinally and/or laterally oriented concavity with the lower extremities of the sole embodied in downwardly and outwardly disposed flexible lugs to cushion the foot against impact loads. The tread members are preferably inclined at an obtuse angle to the lower surface of the sole for spreading outwardly upon impact with the ground to dissipate the impact forces outwardly away from the foot and leg of the wearer. Rows of lugs may be spaced inwardly from the sole edges of a lesser vertical dimension than the outermost lugs and serve to supplement cushioning. A web extends between some of the outer lugs to reinforce same against load deflection. Further, the outer lugs may be of non-uniform lateral dimension at the heel portion of the sole.
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