Shell sole
AssigneesEB Sport International GmbH vormals, Heiner Stuhfauth GmbH
InventorEugen Brutting
Life of this patent
Estimating the term…
Abstract
Shell sole construction for footwear comprised of a sole bottom portion, an upwardly rising edge portion extending around the outer edge of the sole bottom and, optionally including a cutout or recess in the bottom of the shell sole for receiving insert bottoms, is provided with a plurality of longitudinally distributed predetermined bending zones or points along the upwardly rising edge of the shell sole in the area of the ball of the foot to achieve a reduction in the bending stress exerted on the shell sole in the region of the ball of the foot.
Claims27
A unitary shell sole for footwear comprising a sole bottom portion providing a base for a tread sole portion, an upwardly rising edge portion extending around the periphery of the sole bottom at the outer edge thereof, and a plurality of longitudinally distributed predetermined bending points along said edge portion, said plurality of bending points being constituted by a plurality of spaced relatively thin-walled portions in said edge portion.
Dependencies are inferred from the claim text.