Ball shaped product and method for making the same

Abstract

The present invention relates to a ball shaped product and a method for making the same. The method includes the following steps of: (a) placing a ball shaped interior material on a supporting seat, wherein a part of an outer surface of the ball shaped interior material is exposed outside the supporting seat; (b) placing the ball shaped interior material and the supporting seat in a chamber; (c) covering a wrapping material on the chamber; (d) vacuum pumping the chamber, so that the wrapping material is attached to the exposed part of the outer surface of the ball shaped interior material; (e) releasing the vacuum of the chamber; and (f) rotating the ball shaped interior material, and repeating the step (a) to step (e) at least one time.

What is claimed is: 
     
         1 . A method for making a ball shaped product, comprising:
 (a) placing a ball shaped interior material on a supporting seat, wherein a part of an outer surface of the ball shaped interior material is exposed outside the supporting seat;   (b) placing the ball shaped interior material and the supporting seat in an accommodating space of a chamber, wherein the chamber has an opening;   (c) covering a wrapping material on the opening of the chamber;   (d) vacuum pumping the chamber, so that the wrapping material is attached to the exposed part of the outer surface of the ball shaped interior material;   (e) releasing the vacuum of the chamber; and   (f) rotating the ball shaped interior material, and repeating the step (a) to step (e) at least one time.   
     
     
         2 . The method according to  claim 1 , wherein in the step (c), the material of the wrapping material is thermoplastic urethane (TPU), polyurethane (PU), rubber, polyvinyl chloride (PVC), nylon, polyethylene terephthalate (PET) or polycarbonate (PC). 
     
     
         3 . The method according to  claim 1 , wherein in the step (c), the wrapping material has an adhesive layer. 
     
     
         4 . The method according to  claim 1 , wherein after the step (e) or step (f), the method further comprises a step of cutting away the wrapping material that is not attached to the ball shaped interior material. 
     
     
         5 . A method for making a ball shaped product, comprising:
 (a) placing a ball shaped interior material on a first supporting seat, wherein a first outer surface of the ball shaped interior material is exposed outside the first supporting seat;   (b) placing the ball shaped interior material and the first supporting seat in an accommodating space of a first chamber, wherein the first chamber has an opening;   (c) covering a first wrapping material on the opening of the first chamber;   (d) vacuum pumping the first chamber, so that the first wrapping material is attached to the first outer surface of the ball shaped interior material;   (e) releasing the vacuum of the first chamber;   (f) rotating the ball shaped interior material, and then placing the ball shaped interior material on a second supporting seat, wherein a second outer surface of the ball shaped interior material is exposed outside the second supporting seat;   (g) placing the ball shaped interior material and the second supporting seat in an accommodating space of a second chamber, wherein the second chamber has an opening;   (h) covering a second wrapping material on the opening of the second chamber; and   (i) vacuum pumping the second chamber, so that the second wrapping material is attached to the second outer surface of the ball shaped interior material.   
     
     
         6 . The method according to  claim 5 , wherein after the step (a), the method further comprises a step of forming an adhesive layer on the first outer surface; and after the step (f), the method further comprises a step of forming an adhesive layer on the second outer surface. 
     
     
         7 . The method according to  claim 5 , wherein in the step (c), the first wrapping material has an adhesive layer; and in the step (h), the second wrapping material has an adhesive layer. 
     
     
         8 . A ball shaped product, comprising:
 a ball shaped interior material; and   less than four wrapping materials, adhered to the ball shaped interior material.   
     
     
         9 . The ball shaped product according to  claim 8 , wherein the ball shaped interior material is a bladder and has a perfect spherical shape, an elliptical spherical shape or an egg shape; and the ball shaped product further comprises an adhesive layer, located between the ball shaped interior material and the wrapping materials. 
     
     
         10 . The ball shaped product according to  claim 8 , wherein the material of the wrapping material is thermoplastic urethane (TPU), polyurethane (PU), rubber, polyvinyl chloride (PVC), nylon, polyethylene terephthalate (PET) or polycarbonate (PC); the wrapping materials are adhered to the ball shaped interior material by vacuum suction; and the number of the wrapping materials is two.