Article of footwear having a sole structure with a framework-chamber arrangement

摘要

A framework-chamber arrangement for an article of footwear, and an article of footwear having a sole structure including a framework-chamber arrangement, is provided that can cooperate to provide various advantageous features, such as multiple-stage cushioning and specialized attenuation of and reaction to ground contact forces. The framework-chamber arrangement can include a fluid-filled chamber forming laterally extending arms and a framework having corresponding recesses formed therein and receiving a lower portion of the chamber. The fluid-filled chamber can be retained within the framework without a bond being formed between lower regions of the chamber arms and the framework. Peripheral portions of some of the chamber arms can be spaced apart from adjacent portions of corresponding channels while in a relaxed state.

主权项

1. An article of footwear having an upper and a sole structure secured to the upper, the sole structure comprising:
a fluid-filled chamber having an upper region, a lower region, and a plurality of chamber arms extending from the upper region to the lower region, the chamber arms generally configured in a transverse arrangement extending between a lateral side of the footwear and a medial side of the footwear; and a framework having an upper portion, a lower portion, and a recess including a plurality of lateral channels formed in the upper portion and extending toward the lower portion, the lateral channels configured in a transverse arrangement extending between a lateral side of the footwear and a medial side of the footwear, and the lateral channels receiving lower regions of the chamber arms,wherein the fluid-filled chamber is retained within the framework generally free of bonds between lower regions of the chamber arms and the lateral channels.