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