Liquid container

Abstract

A liquid container is capable of efficiently pouring out a liquid contained therein. The liquid container includes a pouch 4 having gussets 2 and opposite sidewalls 3 , a spout body 5 having a mouth 6 and a joining part 8 fixed to an open end of the pouch 4 , and a plug 7 provided with a longitudinal through hole of a special shape and fitted in the mouth 6 of the spout body 5 . A recess 10 is formed in the inside surface of the mouth 6 (or the outside surface of the plug 7 ) and a protrusion 12 capable of engaging in the recess 10 is formed in the outside surface of the plug 7 (or the inside surface of the mouth 6.

1 . A liquid container comprising: 
 a pouch having an open end;    a spout body having a mouth and a joining part fixed to the open end of the pouch; and    a plug provided with a longitudinal through hole of a special shape and fitted in the mouth of the spout body with its outside surface in close contact with the inside surface of the mouth of the spout body.    
   
   
       2 . The liquid container according to  claim 1 , wherein a recess is formed in the inside surface of the mouth (or the outside surface of the plug) and a protrusion capable of engaging in the recess is formed in the outside surface of the plug (or the inside surface of the mouth).  
   
   
       3 . The liquid container according to  claim 2 , wherein the recess is formed in the inside surface of the mouth and the protrusion is formed on the outside surface of the plug.  
   
   
       4 . The liquid container according to  claim 2 , wherein the recess and the protrusion are formed in annular shapes, respectively.  
   
   
       5 . The liquid container according to  claim 1 , wherein the plug is made of a gas barrier synthetic resin.  
   
   
       6 . The liquid container according to  claim 1 , wherein the plug is made of a synthetic resin containing an oxygen absorbent.  
   
   
       7 . The liquid container according to  claim 1 , wherein the pouch has gussets and opposite sidewalls.  
   
   
       8 . The liquid container according to  claim 1 , wherein the pouch has opposite sidewalls and a bottom wall.  
   
   
       9 . The liquid container according to  claim 1 , wherein the plug is chosen from plugs respectively provided with longitudinal through holes of different special shapes.  
   
   
       10 . The liquid container according to  claim 9 , wherein the plug is provided with a longitudinal through hole of a special shape suitable for pouring a liquid contained in the liquid container.  
   
   
       11 . The liquid container according to  claim 1 , wherein the plug and the pouch are formed individually.  
   
   
       12 . The liquid container according to  claim 1 , wherein the plug is fitted in the mouth of the spout body after filling up the pouch with a liquid.  
   
   
       13 . The liquid container according to  claim 1 , wherein the longitudinal through hole of the plug has a cross-sectional shape resembling a circle, a cross, a star, a polygon or a plurality of separate circles.