| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fitting structure between knurled parts of a middle plug and vertical projecting bars of a container mouth capable of performing reliable locking so that the middle plug is not easily drawn out while a tube container is in use. <P>SOLUTION: The fitting structure between the knurled parts of the middle plug and the vertical projecting bars of the container mouth comprises the middle plug having a male thread on its outer periphery and a plurality of the knurled parts on its inner periphery, and a container mouth having a plurality of the vertical projecting bars to be fitted to the knurled parts of the middle plug on its outer periphery so as to prevent the turning of the middle plug body. The value of the number of the knurled parts divided by the number of the vertical projecting bars is expressed not by an integer, but by an indivisible numeral having a decimal point. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
