Plug of a container for holding beverage

Abstract

A plug comprises a plug body serving as the plug of a container for holding beverage and a lid body. A hinge and a lock device are arranged opposing to each other. A lip portion protrudes from the top plate of the plug body. A liquid-passage hole is formed in the lip portion. The upper surface of the lip portion is made into a tapering shape that is highest at the lock device side and lowest at the hinge side. The resilient member that forces the lid body towards an opening direction protrudes from the top plate of the lid body. An air hole is set in the top plate of the plug body and the resilient member is set to vertically block the air hole when the lid body is closed.

What is claimed is:  
     
         1 . A plug of a container for holding beverage, comprising: 
 a plug body, covering an upper opening of a container body;    a lid body, pivotally connected to the plug body using a hinge in a way capable of being opened and closed, and the lid body liquid-seals a liquid-passage hole in a top plate of the plug body; and    a lock device, arranged opposing to the hinge to keep the lid body in a close state,    wherein a lip portion protrudes from the top plate of the plug body, and the liquid-passage hole is formed in the lip portion, and an upper surface of the lip portion is cut into a tapering shape which is highest at a side of the lock device and lowest at a side of the hinge.    
     
     
         2 . A plug of a container for holding beverage, comprising: 
 a plug body, covering an upper opening of a container body;    a lid body, pivotally connected to the plug body using a hinge in a way capable of being opened and closed, and the lid body liquid-seals a liquid-passage hole in a top plate of the plug body; and    a lock device for keeping the lid body in a close state,    wherein a cylindrical lip portion is installed on the top plate of the plug body in a way that the lip portion can be rotated in a circumferential direction, and the liquid-passage hole is formed in the lip portion, and an upper surface of the lip portion is cut into a tapering shape.    
     
     
         3 . The plug of  claim 1 , wherein a non-metal resilient member protrudes from the plug body or the lid body, resiliently contacting the other when the lid body is in the close state, and when the lock device is unlocked, the resilient member forces the lid body towards an opening direction.  
     
     
         4 . The plug of  claim 3 , wherein an air hole is set in the top plate of the plug body, and the resilient member is arranged in the lid body, and the resilient member is set to block the air hole when the lid body is in the close state.  
     
     
         5 . The plug of  claim 4 , wherein the resilient member blocks the air hole in a direction vertical to the air hole.  
     
     
         6 . The plug of  claim 3 , wherein a hollow portion is formed in the resilient member to allow the air go in and out of the hollow portion freely.  
     
     
         7 . The plug of  claim 4 , wherein a hollow portion is formed in the resilient member to allow the air go in and out of the hollow portion freely.  
     
     
         8 . The plug of  claim 5 , wherein a hollow portion is formed in the resilient member to allow the air go in and out of the hollow portion freely.  
     
     
         9 . The plug of  claim 2 , wherein a non-metal resilient member protrudes from the plug body or the lid body, resiliently contacting the other when the lid body is in the close state and when the lock device is unlocked, the resilient member forces the lid body towards an opening direction.  
     
     
         10 . The plug of  claim 9 , wherein an air hole is set in the top plate of the plug body, and the resilient member is arranged in the lid body, and the resilient member is set to block the air hole when the lid body is in the close state.  
     
     
         11 . The plug of  claim 10 , wherein the resilient member blocks up the air hole in a direction vertical to the air hole.  
     
     
         12 . The plug of  claim 11 , wherein a hollow portion is formed in the resilient member to allow the air go in and out of the hollow portion freely.