To obtain a paper container which brings about a strong force for locking a lid body to a container body, disables the opening of a lid as long as a tamper-resistant band part is not damaged, and has an excellent tamper-resistant function.
A skirt wall 8 of the lid body 3 is composed of a barrel wall fitting part 11 and a post-worked locking wall 12 which is formed at the lower end of the barrel wall fitting part; and the locking wall 12 serves as a locking part 13 to be locked, by post-working, to an outer peripheral part of a bottom part of the container body after the skirt wall is externally fitted to a barrel wall of the container body already filled with contents. The outer peripheral part of the bottom part of the container body can also be directly locked to the undersurface of a curled bottom-wall supporting part of a two-piece container body, and can also be locked by flatly smashing the inside of the bottom-wall supporting part or the curled bottom-wall supporting part.
FUTATSUYA KAZUHISA
ISHIBASHI NARIYUKI
Masuo Yamada
Masao Kato
Fumio Sato