| 摘要 |
PROBLEM TO BE SOLVED: To simply block a container cap body crowned onto a head cylindrical body by turning it slightly by a method wherein a vertical groove is formed in cutting at the outer circumferential wall of the head cylindrical body and while a horizontal groove is formed in cutting with the lowermost part of the vertical groove bent sideways, a protuberant point part for engagement with the grooves is provided at a position near the lower end at the internal face of the container cap body. SOLUTION: In order to make a container cap body 10 opened and shut certainly by turning the container cap body 10 crowned onto a container body 2 at a certain angle of turning, a vertical groove 4 extending in the longitudinal direction of the container body 2 is provided in cutting at the outer circumferential wall 3b of a head cylindrical body 3 erected at the top of the container body 2. A horizontal groove 5 is provided sideways in cutting at the lowermost part of the vertical groove 4, being in connection with the vertical groove 4, and a return-preventing protuberance is provided in projection at a position near the tail end of the horizontal groove 5. A protuberant point part 11 is provided in projection at a position near the lower end at the internal face of the container cap body 10 crowned onto the head cylindrical body 3, and movement of the container cap body 10 is guided along the grooves 4, 5 by making the protuberant point part 11 freely engaged with the grooves 4, 5. |
