| 摘要 |
PROBLEM TO BE SOLVED: To provide an easy closing/opening plastic cap which can be opened and closed easily, even if it is difficult to grasp and open the plastic cap engaged with a container with fingers because its size is small.SOLUTION: The easy closing/opening plastic cap is liquid tightly screwed to a container opening part and is composed of a circular upper face wall and a skirt wall suspended from the periphery thereof, in which a circumferential fracture part is attached under the skirt wall part, and the skirt wall is divided into the main part in the upper part than the circumferential fracture part and the tamper evident band of the lower part. The female thread to be screwed with the male thread of the container opening part is on the inner circumference face of the main part and a plurality of engaging pieces engaging with the chin part of the container opening part from a lower part are arranged on the inner circumference face of the tamper evident band in the circumferential direction. An annular overhang part is arranged in the outside of the tamper evident band with space and a plastic cap can be opened easily, by preventing the distribution of the holding power by connecting the annular overhand part and tamper evident band through the use of a plurality of connection parts prolonged in the radial direction or an annular connection part. |
