| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a container for oil-bearing material capable of avoiding any co-rotation of a cap and a middle plug by preventing a fastening torque of the cap from being increased more than a fitting torque of the middle plug. <P>SOLUTION: There is provided a container 10 for oil-bearing material storing dressing liquid which is comprised of a container main body 11 and a cap 13 screwed to a neck part 14 of the container is arranged in a spiral form at an outer circumferential surface of a male thread forming part 15 of the middle plug 12. A female screw protrusion 18 is arranged in a spiral form at an inner circumferential surface of the female screw forming part 17. There is provided a riding-over guiding means for guiding the extremity end of the female screw protrusion 18 to ride over the terminal end of the male thread protrusion 16 before a rotating force at the time of fastening reaches a rotating force where the middle plug 12 starts to rotate along the outer circumferential surface of the neck part 14 of the container main body 11 when the cap 13 is further fastened after the extremity end of the female screw protrusion 18 reaches the terminal end of the male screw protrusion 16. <P>COPYRIGHT: (C)2003,JPO |
