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US 7,934,327 B2Granted
Torsion system for an article of footwear
Assigneeadidas International B.V.
InventorJeffrey Gebhard
Life of this patent
Estimating the term…
Abstract
An article of footwear includes a torsion system constructed of a material and configured to allow, in a pre-selected manner, rotation of a forefoot portion of the article of footwear relative to a rearfoot portion of the article of footwear about a longitudinal axis of the article while substantially precluding bending in an intermediate portion thereof.
Claims21
A torsion system for a cycling shoe including a sole with a forefoot area and a rearfoot area, the torsion system including a longitudinal axis and comprising:
- a forefoot portion of the torsion system spanning the forefoot area of the sole, the forefoot portion having a generally smooth concave contour along the longitudinal axis;
- a rearfoot portion of the torsion system spanning the rearfoot area of the sole;
- and
- an intermediate portion of the torsion system coupling the forefoot portion and the rearfoot portion, and constructed of a material and configured to allow, in a pre-selected manner, rotation of the forefoot portion relative to the rearfoot portion about the longitudinal axis, wherein the intermediate portion includes a rib that projects beyond an adjacent surface of the torsion system, wherein the rib tunes torsionability of the cycling shoe.
1 more element
Dependencies are inferred from the claim text.