Hollow bra cup

Abstract

A hollow cup to help improve the shape of the breast and to save cost of material in production is essentially comprised of a thicker outer layer and a thinner inner layer both made of foamed plastic materials and bound to each other on their respective peripherals; a thickened portion with a proper convex being disposed in the lower part inside the outer layer to help support the bra; and the remaining portion of the outer layer indicating a recess to keep direct contact of both layers thus to define a hollow space for saving the material.

1 . A hollow cup comprised of a thicker outer layer and a thinner inner layer; a thickened part being disposed in the lower portion inside the outer layer; the remaining portion of the outer layer being made a recess; both layers being bound to each other on their respective peripherals; the thickened part supporting and limiting the inner layer to prevent it from contacting the recess; and a hollow space being defined between both layers. 
   
   
       2 . The hollow cup of  claim 1 , wherein the thickened part disposed in the lower portion inside the outer layer is provided with a preset convex. 
   
   
       3 . The hollow cup of  claim 1 , wherein both of the inner layer and the outer layer are made of foamed plastic materials. 
   
   
       4 . The hollow cup of  claim 1 , wherein a piece of net is attached to the outer side of the inner layer to help maintain its structural strength to make sure of not vulnerable to deformation. 
   
   
       5 . The hollow cup of  claim 1 , wherein two pieces of net are respectively attached to the inner side of the outer layer and to the outer side of the inner layer to help maintain the structural strength of the cup to make sure of not vulnerable to deformation. 
   
   
       6 . The hollow cup of  claim 1 , wherein an interlayer is disposed to the outer layer to contain a piece of net; a piece of net is attached to the outer side of the inner layer to maintain the structure strength of the cup to prevent it from being vulnerable to deformation. 
   
   
       7 . The hollow cup of  claim 1 , wherein two pieces of lining are respectively attached to the outer side of the outer layer and the inner side of the inner layer to improve the appearance of the cup. 
   
   
       8 . The hollow cup of  claim 1 , wherein two pieces of net are respectively attached to the inner side of the outer layer and the outer side of the inner layer; and two pieces of lining are respectively attached to the outer side of the outer layer and the inner side of the inner layer to maintain structural strength and improve appearance of the cup.