Shoe With Elastically Flexible Extension

摘要

A footwear article includes a foot-attachment structure configured to attach to a foot, and longitudinally opposite front and rear ends. The footwear article further includes a downward-facing exposed sole surface. A cantilever extension, in a natural condition, adjoins the sole surface at a junction, and projects rearwardly and downwardly from the junction. The extension has a proximal end and a distal end that are longitudinally opposite each other. The extension is supported at only the proximal end. The extension is configured to elastically resist upward rotation of the extension toward the sole, and is configured to be pushed upward toward the sole by the upward force.

主权项

1. A footwear article comprising:
a foot-attachment structure configured to attach to a foot; longitudinally opposite front and rear ends; a downward-facing exposed sole surface; a cantilever extension that adjoins the sole surface at a junction, and, in a natural orientation, projects rearwardly and downwardly from the junction, the extension having a proximal end and a distal end that are longitudinally opposite each other, wherein the extension is supported at only the proximal end; and wherein the extension is configured to elastically resist upward rotation of the extension from the natural orientation, and is configured to be pushed by an upward force to rotate upward from the natural orientation toward the sole.