Plug assembly for beverage container

Abstract

Provided is a plug assembly for a beverage container, exhibiting a favorable pourability without hindering a compactness. The assembly includes: an outer plug (12) fitted into an upper opening of a container body (1) and having an outflow passage (16R) therein; and an inner plug (13) fitted into an upper opening section of the outer plug (12). Provided on the inner circumferential surface of the outer plug (12) is a female screw (21) having a thread continuous in the radial direction and used to attach the inner plug (13). Provided on the outer circumferential surface of the inner plug (13) is a male screw (22) corresponding to the female screw (21). Flow passages (61) are formed by vertically cutting out at least a part of the male screw (22), and provided on the upper regions of the flow passages (61) are control walls (64J) linearly slanting upward and outward. A stable screwed state can be consistently maintained regardless of the locations of the flow passages (61).

Description

technical field [0001] The present invention relates to a cap body for a beverage container including a cap body screwed on. Background technique [0002] In the past, as such a plug body that is arranged on a liquid container such as a thermos bottle, it is known to have a plug body body with a cylindrical opening detachably mounted on the top of the container body and a top and bottom plug body. A cover that can be hingedly arranged on the top of the plug body to open and close the opening of the top of the plug body, and open or close the flow path according to the opening and closing of the cover (for example, Patent Document 1 ); and, having the shoulder part fixed to the edge of the liquid container main body and the communication channel of the shoulder part is arranged inside, while the discharge port which is the injection port is arranged outside, and the plug body is detachable Screwed on the shoulder part, and then through the operation of unscrewing or tighteni...

AI Technical Summary

Problems solved by technology

[0006] In the plug body of the above-mentioned Patent Document 1, in order to improve the injection performance, a large injection port is provided on the plug body body and covers the cover body, but there is also a problem that the injection port extends in the height direction and thus hinders miniaturization.

[0007] In addition, in the plug body of Patent Document 2, the discharge port is further provided in the shoulder member in order to improve the injectability, but since the shoulder member is required from the beginning, the number of parts increases.

In addition, in order to increase the injection, a predetermined length of the flow path is required. Since the injection port is usually exposed to the outside, it is unsanitary compared with the injection port of the closed lid. The entrance is vulnerable to damage

Furthermore, the thread is partially cut off to form a circulation channel, but the flow of the circulation channel tends to expand left and right

In addition, the click of the plug in the direction of the flow path becomes louder due to the thread being removed

[0008] In addition, in the plug body of Patent Document 3, the valve body is operated by setting the flow path between the inner plug and the outer plug, and then the flow path is opened or closed. , and poor cleaning performance due to the large number of parts

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