Sole structure for article of footwear

Abstract

A bladder for an article of footwear includes a first chamber having a first segment extending along a first side of the bladder and a second segment formed on an opposite side of the bladder from the first segment. The bladder further includes a second chamber at least partially surrounded by the first chamber and disposed between the first segment and the second segment. A manifold is in direct fluid communication with each of the first segment of the first chamber, the second segment of the first chamber, and the second chamber. A web area connects each of the first chamber, the second chamber, and the manifold. The bladder may include a first series of ports formed in the first segment of the first chamber and a second series of ports formed in the second segment of the first chamber.

What is claimed is: 
     
         1 . A sole structure for an article of footwear having an upper, the sole structure comprising:
 a fluid-filled chamber including a perimeter chamber and an interior chamber at least partially surrounded by the perimeter chamber; and   a chassis disposed between the fluid-filled chamber and the upper and including an aperture formed through a thickness of the chassis and receiving the interior chamber therein, the interior chamber being exposed at a top surface of the chassis by the aperture and opposing the upper.   
     
     
         2 . The sole structure of  claim 1 , wherein the perimeter chamber includes a first segment extending along a medial side of the sole structure, a second segment extending along a lateral side of the sole structure, and an arcuate segment extending between and connecting the first segment and the second segment. 
     
     
         3 . The sole structure of  claim 2 , wherein the arcuate segment extends along a posterior end of the sole structure. 
     
     
         4 . The sole structure of  claim 2 , wherein the first segment, the second segment, and the arcuate segment cooperate to form a substantially U-shape. 
     
     
         5 . The sole structure of  claim 1 , wherein the chassis includes a top surface opposing the upper and a bottom surface disposed on an opposite side of the chassis than the top surface, the aperture extending through a thickness of the chassis between the top surface and the bottom surface. 
     
     
         6 . The sole structure of  claim 5 , wherein the bottom surface includes a first recess that receives the perimeter chamber. 
     
     
         7 . The sole structure of  claim 5 , wherein the fluid-filled chamber includes a web area extending between and joining the perimeter chamber and the interior chamber, the bottom surface of the chassis extending between the perimeter chamber and interior chamber and opposing the web area. 
     
     
         8 . The sole structure of  claim 1 , further comprising an outsole having a first surface opposing the chassis and a second surface disposed on an opposite side of the outsole than the first surface and defining a ground-engaging surface of the sole structure. 
     
     
         9 . The sole structure of  claim 8 , wherein the first surface of the outsole is in contact with a bottom surface of the chassis in a forefoot region of the sole structure and is in contact with the fluid-filled chamber in a heel region of the sole structure. 
     
     
         10 . The sole structure of  claim 8 , wherein the outsole includes a first recess that receives the interior chamber and a second recess that receives the perimeter chamber. 
     
     
         11 . A sole structure for an article of footwear having an upper, the sole structure comprising:
 a chassis including a top surface opposing the upper and a bottom surface disposed on an opposite side of the chassis than the top surface;   an outsole including a first surface opposing the bottom surface of the chassis and a ground-engaging surface disposed on an opposite side of the outsole than the first surface; and   a fluid-filled chamber disposed between the bottom surface of the chassis and the top surface of the outsole and including a perimeter chamber and an interior chamber at least partially surrounded by the perimeter chamber, the interior chamber having a first portion extending through the chassis and a second portion in contact with the first surface of the outsole.   
     
     
         12 . The sole structure of  claim 11 , wherein the perimeter chamber includes a first segment extending along a medial side of the sole structure, a second segment extending along a lateral side of the sole structure, and an arcuate segment extending between and connecting the first segment and the second segment. 
     
     
         13 . The sole structure of  claim 12 , wherein the arcuate segment extends along a posterior end of the sole structure. 
     
     
         14 . The sole structure of  claim 12 , wherein the first segment, the second segment, and the arcuate segment cooperate to form a substantially U-shape. 
     
     
         15 . The sole structure of  claim 11 , wherein the chassis includes an aperture extending through a thickness of the chassis between the top surface and the bottom surface. 
     
     
         16 . The sole structure of  claim 11 , wherein the bottom surface includes a first recess that receives the perimeter chamber. 
     
     
         17 . The sole structure of  claim 11 , wherein the fluid-filled chamber includes a web area extending between and joining the perimeter chamber and the interior chamber, the bottom surface of the chassis extending between the perimeter chamber and interior chamber and opposing the web area. 
     
     
         18 . The sole structure of  claim 11 , wherein the first surface of the outsole is in contact with the bottom surface of the chassis in a forefoot region of the sole structure and is in contact with the fluid-filled chamber in a heel region of the sole structure. 
     
     
         19 . The sole structure of  claim 18 , wherein the first surface of the outsole is spaced apart and separated from the bottom surface of the chassis by the fluid-filled chamber in the heel region of the sole structure. 
     
     
         20 . The sole structure of  claim 11 , wherein the outsole includes a first recess that receives the interior chamber and a second recess that receives the perimeter chamber.