To provide a cup that can be fixed to a PET bottle.
A cap part 5, which is fitted on the mouth part 3 of the PET bottle P, is formed integrally on a bottom face 10a on the inside of the cup 10, and a peripheral wall H, which can be fitted on the outer periphery of a cap part 2 of the PET bottle P, is formed on the front end of the cap 5. The peripheral wall H has vertical grooves 4a, which engage with grooves 2a on the outer periphery of the screw cap 2 of the PET bottle P and form an opener portion 4. Turning the cup 10 brings the vertical grooves 4a of the peripheral wall H into engagement with the grooves 2a of the cap 2, forcing the cup 10 and the cap 2 to turn together to allow a user to open the cap 2 with a relatively small force. When drinking is over, the cup 10 is turned down and the cap part 5 is screwed on the mouth part 3 of the PET bottle P to be fixed, where a screw part 3a of the mouth part 3 engages with a screw part 5a of the cap part 5 to maintain water-proofness to prevent a drink from spilling out of a bottle body 1.
| JPS61287548 | PACKAGING VESSEL |
| JPS58138029 | 【考案の名称】指輪型取手付計量キヤツプ |
| JP5766922 | Container lid |
Higashio Masahiro
Torii Kazuhisa