Can bottles in a bottomed, cylindrical configuration, and can products filled up therein with a soft or hard drink

Abstract

A can bottle in a bottomed, cylindrical configuration, which is constructed of a metal material has a cylindrical side wall and a bottom joined to and integrated with the side wall. The bottom includes domed portions that flex and extend downwardly and outwardly, and flexed support legs formed by extending a plurality of peripheral edge sites of the domed portions arranged at uniform angles further downwardly and outwardly in a flexed fashion. The bottom satisfies a condition: 1.04≦R3/D≦1.67 where R3 (mm) is the radius of curvature that defines the curvature of the domed portion at the bottom, and D (mm) is the diameter of the cylindrical side wall. In addition ribs are formed at possible grounding sites of the flexed support legs at the bottom in a direction crossing the radial direction.

What is claimed is: 
     
         1 . A can having a cylindrical shape and being constructed of a metal material, the can comprising:
 a cylindrical side wall; and   a bottom joined to and integrated with said side wall, the bottom including:
 domed portions that flex and extend downwardly; and 
 support legs formed by flexing and extending a plurality of peripheral edge sites of the domed portions further downwardly; wherein
 said domed portions include a first portion that is surrounded by the plurality of support legs and a plurality of second portions that are positioned between adjacent support legs; and 
 said bottom satisfies a condition: 1.04≦R 3 /D≦1.67 where R 3  (mm) is a radius of curvature that defines a curvature of the first portion at the bottom, and D (mm) is a diameter of the cylindrical side wall. 
 
   
     
     
         2 . The can recited in  claim 1 , wherein said condition is narrowed down to 1.17≦R 3 /D≦1.33 where R 3  (mm) is the radius of curvature that defines the curvature of the first portion at the bottom, and D (mm) is the diameter of the cylindrical side wall. 
     
     
         3 . The can recited in  claim 1 , wherein the diameter D (mm) of the cylindrical side wall is set at 52 to 95 mm. 
     
     
         4 . The can recited in  claim 1 , wherein a height L (mm) of each support leg is set to satisfy 0.12≦L/D≦0.18 where D (mm) is the diameter of the cylindrical side wall. 
     
     
         5 . The can recited in  claim 1 , wherein said bottom has an average thickness t (mm) enough to satisfy 0.0030≦t/D≦0.0045 where D (mm) is the diameter of the cylindrical side wall. 
     
     
         6 . The can recited in  claim 1 , wherein there are four to eight support legs provided. 
     
     
         7 . The can recited in  claim 1 , wherein the plurality of support legs are located and constructed in a petaloid configuration. 
     
     
         8 . A drink product, which is formed by filling the can recited in  claim 1  with a drink, and then sealing an opening with a lid. 
     
     
         9 . The drink product as recited in  claim 8 , wherein the can has an internal pressure that is within a range of up to 640 kPa. 
     
     
         10 . The drink product as recited in  claim 9 , wherein the drink is a carbonated drink.