| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a container mouth in which an amount of resin used and weight are effectively reduced without causing deformation or the like of a cap. <P>SOLUTION: The container mouth comprises a hollow cylindrical wall and having on the external face of the hollow cylindrical wall: screws to be screwed with the cap; an annular jaw formed below the screw; and a support ring disposed below the annular jaw with a space. The screw is formed of at least one spiral line of dot-like small projections. In the two axially adjacent lines of dot-like small projections extending in a circumferential direction, as viewed from a side face of the hollow cylindrical wall, the one line of dot-like small projections is located between the circumferentially adjacent dot-like projections of the other line, except a parting line. <P>COPYRIGHT: (C)2007,JPO&INPIT |
