Ball for ball game

Abstract

An object of the present invention is to provide a ball for ball games which has equivalent or increased cushioning property to a ball which has seams without providing inflatable raised seams with cushion layers under outer covering. A ball for ball games in the present invention includes a bladder made of rubber or elastomer, and an foamed layer covered an outside of the bladder, in which a skin layer is provided on each surface which is divided to sectionalize the surface of the foamed layer, a partition of the foamed layer has lower foamed property than each surface which is divided to sectionalize the surface.

1 : A ball for ball game comprising: 
 a bladder made of rubber or elastomer; and    a foamed layer covering an outside of said bladder;    wherein a skin layer is provided on each surface which is divided to sectionalize the surface of said foamed layer, and a partition on said foamed layer has lower foamed property than each surface which is divided to sectionalize the surface.    
   
   
       2 : A ball for ball game comprising: 
 a bladder made of rubber or elastomer;    a reinforcement layer covering an outside of the bladder; and    a foamed layer covering an outside of the reinforcement layer;    wherein a peripheral edge of said each surface which is divided to sectionalize the surface of foamed layer is formed in a shape of arc with a smooth seam, a skin layer is provided on each surface which is divided to sectionalize the surface of said foamed layer, and a partition of said foamed layer has lower foamed property than each surface which is divided to sectionalize the surface.    
   
   
       3 : The ball for ball game of  claim 1 , 
 wherein the number of cells in a partition of said foamed layer is less than the number of cells in each surface which is divided to sectionalize the surface of said foamed layer.    
   
   
       4 : The ball for ball games of  claim 1 , 
 wherein the foamed property in partition of said foamed layer decreases gradually as an interval from each surface which is divided to sectionalize the surface increases.    
   
   
       5 : The ball for ball game of  claim 2 , 
 wherein the number of cells in a partition of said foamed layer is less than the number of cells in each surface which is divided to sectionalize the surface of said foamed layer.    
   
   
       6 : The ball for ball games of  claim 2 , 
 wherein the foamed property in partition of said foamed layer decreases gradually as an interval from each surface which is divided to sectionalize the surface increases.    
   
   
       7 : The ball for ball games of  claim 3 , 
 wherein the foamed property in partition of said foamed layer decreases gradually as an interval from each surface which is divided to sectionalize the surface increases.    
   
   
       8 : The ball for ball games of  claim 5 , 
 wherein the foamed property in partition of said foamed layer decreases gradually as an interval from each surface which is divided to sectionalize the surface increases.