Can opening device

Abstract

The present invention relates to a can opening device. According to the present invention, there is provided a can opening device for a can, which is formed on a top surface of a cylindrical can with contents contained therein, comprising: first and second opening portions 122, 124 disposed to be opposite to each other at both sides of the top surface 110 of the can and defined by incision lines 122 a, 124 a; an opening member 140 including an arcuate grip 142 formed at a relatively outward portion of the top surface 110, an arcuate reinforcement portion 144 formed integrally with the grip at a relatively inward portion of the top surface, and pressing portions 146, 148, formed to extend toward the opening portions 122, 124 from both ends where the reinforcement portion and grip are connected to each other, for pressing down and opening the opening portions, respectively; and a pair of lever fulcrums Hn, Hm, installed at the pressing portions rearward of the centers of the both ends where the reinforcement portion and grip are connected to each other, for fixedly connecting the opening portions to the top surface, respectively. Further, the first opening portion 122 through which the contents flow out upon opening thereof is relatively larger than the second opening portion 124, the pressing portion 146 is installed to be at a position inward of the center of the top surface from the center of the first opening portion 122, and the first opening portion 122 is positioned so that the center thereof is located at a position inward from that of a radius line of the top surface 110 passing through the center of the first opening portion.

What is claimed is:  
     
         1 . A can opening device for a can, which is formed on a top surface of a cylindrical can with contents contained therein, comprising: 
 first and second opening portions ( 122 ,  124 ) disposed to be opposite to each other at both sides of the top surface ( 110 ) of the can and defined by incision lines ( 122   a,    124   a );    an opening member ( 140 ) including an arcuate grip ( 142 ) formed at a relatively outward portion of the top surface ( 110 ), an arcuate reinforcement portion ( 144 ) formed integrally with the grip at a relatively inward portion of the top surface, and pressing portions ( 146 ,  148 ), formed to extend toward the opening portions ( 122 ,  124 ) from both ends where the reinforcement portion and grip are connected to each other, for pressing down and opening the opening portions, respectively; and    a pair of lever fulcrums (Hn, Hm), installed at the pressing portions rearward of the centers of the both ends where the reinforcement portion and grip are connected to each other, for fixedly connecting the opening portions to the top surface, respectively;    wherein the first opening portion ( 122 ) through which the contents flow out upon opening thereof is relatively larger than the second opening portion ( 124 ), the pressing portion ( 146 ) is installed to be at a position inward of the center of the top surface from the center of the first opening portion ( 122 ), and the first opening portion ( 122 ) is positioned so that the center thereof is located at a position inward from that of a radius line of the top surface ( 110 ) passing through the center of the first opening portion.    
     
     
         2 . The device as claimed in  claim 1 , wherein the second opening portion ( 124 ) has a diameter of 5 to 12 mm.  
     
     
         3 . The device as claimed in  claim 1 , wherein a recess ( 150 ) for the grip is formed under the grip to be depressed below the level of the top surface  110 .  
     
     
         4 . The device as claimed in  claim 2 , wherein the opening member takes the shape of a hollow arc.