| abstract |
A kind of fluid-filled chamber (40) can be attached to footwear and other products.This chamber is formed by polymeric material, the second surface (42) that polymeric material defines first surface (41), is oppositely arranged with first surface, and the periphery of surrounded chamber and the sidewall surfaces (43) of extending between first surface and second surface.Inwardly separate from sidewall surfaces a plurality of joint portions (45), and connect first surface and second surface, and the joint portion distribution is the separated array of formation rule, for example hexagonal array.In some constructions, first surface and second surface can define the ellipsoidal structure between the joint portion.In addition, the joint portion can form and have first surface and second surface near the slope of the average of the slope in the zone of joint portion. |