Can covers and cans having the same

Abstract

A can cover comprising: a top panel having an opening portion with a score line engraved on the top panel; a rotational tab rotatably installed on the top panel; and a severance initializing means for connecting the rotational tab and an area adjacent to the score line of the top panel to initialize a severance of the score line at a start point when the rotational tab is rotated.

1 . A can cover comprising:
 a top panel having an opening portion with a score line engraved on the top panel;   a rotational tab rotatably installed on the top panel; and   a severance initializing means for connecting the rotational tab and an area adjacent to the score line of the top panel to initialize a severance of the score line at a start point when the rotational tab is rotated.   
   
   
       2 . The can cover according to  claim 1 , wherein the severance initializing means comprises a severance protrusion provided on a position where the score line is formed on the top panel to connect with the rotational tab. 
   
   
       3 . The can cover according to  claim 2 , wherein a severance slot is formed on the rotational tab to surround the severance protrusion. 
   
   
       4 . The can cover according to  claim 3 , wherein the severance protrusion is configured to press the upper surface of the opening portion when the rotational tab is rotated. 
   
   
       5 . The can cover according to  claim 2 , wherein the score line surrounds at least portion of the severance protrusion. 
   
   
       6 . The can cover according to  claim 2 , wherein the top panel is provided with a concave section, and the concave section has a boundary adjacent to the score line surrounding the severance protrusion. 
   
   
       7 . The can cover according to  claim 1 , wherein the rotational tab comprises a driving portion having a handle portion, and a driven portion opposite the driving portion which includes a push portion. 
   
   
       8 . The can cover according to  claim 1 , wherein the score line comprises:
 a main score line engraved along the boundary between the opening portion and the top panel; and   an auxiliary score line extending in the opposite direction of the main score line.   
   
   
       9 . The can cover according to  claim 8 , further comprising a separation score line for separating the severance protrusion from the top panel during the progress of severance of the score line. 
   
   
       10 . The can cover according to  claim 9 , wherein the separation score line extends in parallel to the auxiliary score line to lead to the main score line. 
   
   
       11 . The can cover according to  claim 2 , wherein the top panel is provided with an embossment to be pressed by the severance protrusion. 
   
   
       12 . A can comprising:
 a cylindrical shaped body for containing a beverage; and   a can cover having the configuration of  claim 1 , to be fastened on the top of the body.