| 摘要 |
An inner plug constituting a closing member of a liquid injection container formed so that the driven inner plug can be pulled out simply from a mouth portion of the container when the container is discarded, and a cap for closing the inner plug, the closing member of the liquid injection container comprising the inner plug and cap, the inner plug comprising a fitting portion which comprises an inner cylinder, an outer cylinder and a shoulder wall, and which is fitted firmly in a cylindrical mouth section of the container, a threaded cylinder provided so as to extend upward from an inner cylinder of the fitting portion, and an injection cylinder joined to the threaded cylinder, the cap having a side cylindrical wall screwed on the threaded cylinder of the inner plug, and a covering cylinder which is formed so as to have a diameter larger than that of the side cylindrical wall, and which encloses the shoulder wall and outer cylinder of the fitting portion of the inner plug, characterized in that a recess is provided in the outer cylinder of the inner plug, a recess continuing from the recess being provided in the shoulder wall, a deep groove continuing from this recess being provided in a lower surface of the shoulder wall so that the groove extends in a predetermined range along the outer cylinder; and a jig for retaining the inner plug so that the inner plug cannot be turned. |
