| 摘要 |
PURPOSE:To avoid damage in sealing at a neck part by setting the minimum interval along an axial line between a lower face of a female thread and an upper face of a male thread in a constant range while the female thread formed on an inner peripheral face of a skirt wall of a lid is in contact with the male thread formed on an outer peripheral face of the container neck. CONSTITUTION:This apparatus comprises a combination of a container 2 and a lid 4 to be mounted on the container 2. While the lid 4 has been mounted on a neck part 6 of the container 2 as required and an upper face of a female thread 14 formed on an inner peripheral face of a skirt wall 12 of the lid 4 is in contact with a lower face of a male thread 8 formed on an outer peripheral face of the neck 6 of the container 2, the minimum interval (d) along an axial line between the lower face of the female thread 14 and the upper face of the male thread 8 is considerably smaller than that of a conventional one, that is, the interval is set between 0.1 and 0.4mm. A superimposed load is directly transmitted from the female thread 14 of the skirt wall 12 to the male thread 8 and supported there so that the load is prevented from further functioning to a sealing member 16. |
