Spout-equipped container and refilling method

Abstract

A spout-equipped container ( 100 ) that is used to refill a refillable container with a content material includes a refill container spout ( 1 ) and a flexible container body portion ( 2 ). The container body portion ( 2 ) contains the content material. The refill container spout ( 1 ) includes a tubular nozzle portion ( 11 ) that brings the inside and outside of the container body portion ( 2 ) into communication with each other, and a fixing portion ( 19 ) that is fixedly attached to the container body portion ( 2 ). The nozzle portion ( 11 ) includes a throttle projection ( 14 ) that protrudes toward a center of the nozzle portion ( 11 ) on an inner surface ( 11 c ) side in a lower portion (C) that is one of three equal parts obtained by dividing the nozzle portion in a height direction of the nozzle portion. The throttle projection ( 14 ) forms, on a leading end side in a protrusion direction of the throttle projection ( 14 ), a flow path through which the content material passes. The throttle projection ( 14 ) extends along the circumferential direction of the nozzle portion ( 11 ), and has a length more than 50% of a total inner circumferential length of the nozzle portion ( 11 ). The container body portion ( 2 ) includes a top surface portion, a front surface portion, a back surface portion, and a bottom portion. The fixing portion ( 19 ) of the refill container spout is fixedly attached to the top surface portion.

1 . A spout-equipped container that is configured to refill a refillable container with a content material, the spout-equipped container comprising:
 a refill container spout; and   a flexible container body portion, the container body portion configured to contain the content material,   wherein the refill container spout includes a tubular nozzle portion that brings the inside and outside of the container body portion into communication with each other, and a plate-like fixing portion that is fixedly attached to the container body portion,   when the nozzle portion is divided in a height direction of the nozzle portion into three equal parts, and the three equal parts are respectively defined as an upper portion that includes a discharge-side opening portion, an intermediate portion, and a lower portion, the nozzle portion includes, on an inner surface side in the lower portion, a throttle projection that protrudes toward a center of the nozzle portion,   the throttle projection forms, on a leading end side in a protrusion direction of the throttle projection, a flow path configured for the content material to pass through, and the throttle projection extends along a circumferential direction of the nozzle portion, and has a length more than 50% of a total circumferential length of an inner surface of the nozzle portion,   the container body portion includes a top surface portion, a front surface portion, a back surface portion, and a bottom portion,   the fixing portion of the refill container spout is fixedly attached to the top surface portion, and   the refillable container is configured to be refilled with the content material in a state that the nozzle portion is inserted into a container opening of the refillable container.   
     
     
         2 . The spout-equipped container according to  claim 1 , wherein the content material has a viscosity of 10,000 to 65,000 mPa·s. 
     
     
         3 . The spout-equipped container according to  claim 1 , wherein the fixing portion of the refill container spout is fixed with an upper surface of the fixing portion being fixedly attached to a lower surface of the top surface portion, and the refillable container is configured to be refilled with the content material in a state that a portion of the top surface portion overlapping with the fixing portion abuts the leading end of the container opening of the refillable container. 
     
     
         4 . The spout-equipped container according to  claim 1 , wherein the throttle projection is formed on an end portion on the container body portion side of the nozzle portion. 
     
     
         5 . The spout-equipped container according to  claim 1 , wherein an annular extending portion is provided in an outer circumferential portion of the nozzle portion. 
     
     
         6 . The spout-equipped container according to any one of  claim 1 , wherein the throttle projection has an inclination angle θ 1  of 120° or less, the inclination angle θ 1  being an inclination angle of a surface that is on the discharge-side opening portion side of the nozzle portion with respect to the inner surface of the nozzle portion. 
     
     
         7 . A refilling method for refilling a refillable container with a content material contained in the spout-equipped container according to  claim 1 , the method comprising
 inserting the nozzle portion of the spout-equipped container into a container opening of the refillable container and injecting the content material into the refillable container, with the spout-equipped container being held upside down.   
     
     
         8 . The spout-equipped container according to  claim 1 , further comprising instructions for a refilling method displayed on the spout-equipped container. 
     
     
         9 . The spout-equipped container according to  claim 1 , wherein the refillable container is configured to be refilled with the content material in a state that the nozzle portion is inserted into a container opening of the refillable container such that the fixing portion is placed on a leading end of the container opening. 
     
     
         10 . The spout-equipped container according to  claim 1 , wherein the refillable container is configured to be refilled with the content material in a state that the nozzle portion is inserted into a container opening of the refillable container such that the fixing portion is above a leading end of the container opening.