Bladder for an inflatable ball

摘要

A bladder made from flexible, in particular elastic, material for an inflatable ball has a gas passage aperture (3), closed by a valve (4), between the interior of the bladder and the external space (8). A second bladder (2) is present inside the bladder (1) in order to reduce the inflation time of the ball and to increase the softness of the ball while simultaneously providing good shape quality and strength. The internal space (7) of the second bladder (2) is connected to the external space (8) on one side via a gas passage (6, 9) while on the other side it is sealed off relative to the intermediate space (5) between the inner bladder (2) and the outer bladder (1), and the second bladder (2) is connected to the first bladder (1) at points uniformly distributed over its periphery. <IMAGE>