| 摘要 |
A shoe sole includes a rotatable pivot assembly to allow easy pivoting of a ball region of a shoe. The shoe sole includes a pivot cavity defined by an upper plate support surface and a lower plate support surface having an aperture therein. A rotatable pivot assembly includes a pivot plate and a sole element attached thereto. The pivot plate is pivotally constrained within the pivot cavity and the sole element extends through the aperture in the pivot cavity to define an exterior contact surface. Preferably contacting surfaces of the pivot plate and upper plate support surface are formed of a low coefficient of friction material to allow easy rotation of the pivot plate within the cavity. Because the assembly can be made thin with minimal parts, it results in a structure that substantially retains the look, feel and balance of a normal shoe while being able to achieve improved pivot action. The shoe sole is particularly advantageous when incorporated into an athletic shoe or a work shoe for activities that require repeated pivotal movement.
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