| 摘要 |
An article of footwear comprises an upper 110 with a sole attached to it. The sole is split into first 100 and second 10 portions, with the first portion 100 being fixedly attached to the upper 110 and the second portion 10 being rotatably connected beneath the fixed portion 100 by a spindle 80. Application of a twisting force, exceeding a pre-determined limit, to the rotatable portion 10 permits it to rotate relative to the first portion 100. A deformable, flexible material 120 engaged by a fixed portion 100 and surrounding the rotatable portion 10 will bias the second porÂtion 10 to return to a central position after removal of the twisting force.
|
