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|1. (WO2018163393) SYNTHETIC RESIN CAP AND CONTAINER|
|Applicants:||NIHON YAMAMURA GLASS CO., LTD.,
|Title:||SYNTHETIC RESIN CAP AND CONTAINER|
Provided are a synthetic resin cap and a container with which it is possible to improve opening operability while establishing excellent properties for showing evidence of tampering. A cap 1 equipped with a skirt wall 3 in which there is provided a female screw 5 threadably mounted on a male screw M1 formed on the outer periphery of a container opening M, and a band 7 connected to the lower part of the skirt wall with an annular weakened part 6 interposed therebetween, wherein: a plurality of hooks 8 capable of locking, from below, an annular projection 9 provided to the outer periphery of the container opening is provided to the inner-peripheral side of the band at intervals in the circumferential direction; a protruding part 10 that protrudes inward from the band above the hooks and that protrudes by an amount less than that of the hooks extends on the inner-peripheral side of the band; an inclined part 11 of which the inner diameter increases in correlation with greater height above the protruding part is provided to the inner-peripheral side of the band; and the inclined part extends from the upper end thereof toward the upper end of the protruding part such that the inner diameter decreases at a gradient θ of 35-45°m and the axial-direction length h5 of the inclined part is 0.2-0.8 mm.