Container stopper having separated additive accomodation tube

Abstract

Disclosed is a container cap having a separated additive storage tube, which includes: a lower cap ( 100 ) which is coupled to a mouth ( 2 ) of a container ( 1 ) and which has a stopper ( 130 ) protruding upward from a bottom of an extension tube ( 120 ); a storage tube ( 200 ) which is sealing coupled to an edge of the stopper ( 130 ) and in which an additive is contained; and an upper cap ( 300 ) which is coupled with the storage tube ( 200 ) together with the lower cap ( 100 ). When the upper cap ( 300 ) is separated from the container ( 1 ), the stopper ( 130 ) and the storage tube ( 200 ) is uncoupled only by upward movement rather than rotation of the storage tube ( 200 ) so that the additive is discharged through a lower portion of the storage tube ( 200 ) and discharge holes.

1 . A container cap having a separated additive storage tube, comprising:
 a lower cap ( 100 ) which is coupled to an upper end of a mouth ( 2 ) of a container ( 1 ) by a catching flange ( 110 ) and which has a stopper ( 130 ) whose central portion is formed so as to protrude upward from a bottom of an extension tube ( 120 ) extending downward from the catching flange ( 110 ) into the mouth of the container ( 1 ), and open discharge holes ( 140 ) formed in a circumference of the stopper ( 130 );   a storage tube ( 200 ) whose open lower end is sealing coupled to an edge of the stopper ( 130 ) of the lower cap ( 100 ), in which an additive is contained, whose upper end outer surface has a shoulder ( 210 ) increased in diameter, and whose upper end surface ( 220 ) is closed; and   an upper cap ( 300 ) whose inner surface has a ridge supporting the shoulder ( 210 ) so as to prevent rotation of the storage tube ( 200 ), which is coupled with the storage tube ( 200 ) together with the lower cap ( 100 ), and which causes the storage tube ( 200 ) to perform only downward movement when coupled to the lower cap ( 100 ),   wherein, when the upper cap ( 300 ) is separated from the container ( 1 ), the sealing coupling of the stopper ( 130 ) and the storage tube ( 200 ) is released only by upward movement rather than the rotation of the storage tube ( 200 ) so that the additive is discharged through a lower portion of the storage tube ( 200 ) and the discharge holes.   
     
     
         2 . A container cap having a separated additive storage tube, comprising:
 a lower cap ( 100 ) that is coupled to an upper end of a mouth ( 2 ) of a container ( 1 ) by a catching flange ( 110 ) and that has a stopper ( 130 ) whose central portion is formed so as to protrude upward from a bottom of an extension tube ( 120 ) extending downward from the catching flange ( 110 ) into the mouth of the container ( 1 ) and which is integrally formed with the extension tube ( 120 ) by a hinge ( 150 ),   a storage tube ( 200 ) whose open lower end is sealing coupled to an edge of the stopper ( 130 ) of the lower cap ( 100 ), in which an additive is contained, whose upper end outer surface has a shoulder ( 210 ) increased in diameter, and whose upper end surface ( 220 ) is closed, and   an upper cap ( 300 ) whose inner surface has a ridge supporting the shoulder ( 210 ) so as to prevent rotation of the storage tube ( 200 ), which is coupled with the storage tube ( 200 ) together with the lower cap ( 100 ) so that the stopper ( 130 ) of the lower cap is hinged to a lower end of the storage tube ( 200 ) around the hinge ( 150 ), and which causes the storage tube ( 200 ) to perform only downward movement when coupled to the lower cap ( 100 ),   wherein, when the upper cap ( 300 ) is separated from the container ( 1 ), the sealing coupling of the stopper ( 130 ) and the storage tube ( 200 ) is released only by upward movement rather than the rotation of the storage tube ( 200 ), and the stopper ( 130 ) and the storage tube ( 200 ) are opened on the basis of the hinge ( 150 ) so that the additive is discharged through a lower portion of the opened storage tube ( 200 ).   
     
     
         3 . The container cap according to  claim 2 , wherein an auxiliary discharge hole ( 230 ) is formed in a lower end edge excluding a portion of the hinge ( 150 ) of the extension tube ( 120 ). 
     
     
         4 . The container cap according to  claim 1  or  2 , wherein an outer wall of the extension tube ( 120 ) and an inner wall of the mouth ( 2 ) of the container ( 1 ) are configured to enable profile coupling to provide mutual sealability. 
     
     
         5 . The container cap according to  claim 1  or  2 , wherein:
 the upper cap ( 300 ) includes an outer cap ( 310 ) having a bent inner step ( 312 ) so that a shoulder of the upper cap ( 300 ) is radially reduced to press and seal the catching flange ( 110 ) of the lower cap when coupled with the lower cap ( 100 ), and a protrusion cap ( 320 ) directed upward from the inner step ( 312 ) in a vertical direction; the shoulder ( 210 ) of the storage tube ( 200 ) is fitted to an inner sidewall of the protrusion cap ( 320 ); and the ridge ( 322 ) providing an upward/downward movement force of the storage tube ( 200 ) is formed on the inner sidewall of the protrusion cap ( 320 ). 
 
     
     
         6 . The container cap according to  claim 5 , wherein any one of the closed upper end face ( 220 ) of the storage tube ( 200 ) and an inner surface of the protrusion cap ( 320 ) which corresponds to the closed upper end face is formed with a protrusion rail (R) reducing friction between them. 
     
     
         7 . The container cap according to  claim 1  or  2 , wherein:
 the upper cap ( 300 ) includes an outer cap ( 310 ) having a bent inner step ( 312 ) so that a shoulder of the upper cap ( 300 ) is radially reduced to press and seal the catching flange ( 110 ) of the lower cap when coupled with the lower cap ( 100 ), and a protrusion cap ( 320 ) directed upward from the inner step ( 312 ) in a vertical direction; the shoulder ( 210 ) of the storage tube ( 200 ) is fitted to an inner sidewall of the protrusion cap ( 320 ); the ridge ( 322 ) guiding upward/downward movement of the storage tube ( 200 ) is formed on the inner sidewall of the protrusion cap ( 320 ); and the inner step ( 312 ) presses and seal the shoulder ( 210 ) and the catching flange ( 110 ) at the same time. 
 
     
     
         8 . The container cap according to  claim 7 , wherein any one of the closed upper end face ( 220 ) of the storage tube ( 200 ) and an inner surface of the protrusion cap ( 320 ) which corresponds to the closed upper end face is formed with a protrusion rail (R) reducing friction between them. 
     
     
         9 . The container cap according to  claim 9 , wherein at least one auxiliary discharge hole ( 153 ) may be formed in a portion excluding hinge slots ( 152 ) of the extension tube.