To reduce the production cost of a cap which includes an inner plug attached to a mouth part of a container body and having a pouring nozzle and includes an outer cap, and to improve the sealability of the container body with the cap.
The cap 1 includes the inner plug 10 attached to the mouth part 32 of the container body 30, and the outer cap 20 for covering the inner plug 10 attached to the mouth part 32 of the container body 30 and engaged with the outer surface of the mouth part wall 31 of the container body 30 in a threaded manner. The inner plug 10 includes the pouring nozzle 13 and a cylindrical part 11 formed outside the pouring nozzle 13. A flange 12 projecting outward is formed in the upper edge of the cylindrical part 10, and is locked in a projecting part 33 formed inside the upper end of the mouth part wall 31 of the container body 30. The outer cap 20 includes a first inner ring 22A abutting on the cylindrical part 11 of the inner plug 10, a second inner ring 22B abutting on the mouth part wall 31 of the container body 30, and an abutting part (contact ring 21) for pressing the upper end surface 34 of the mouth part wall 31, while the outer cap is threadedly engaged with the mouth part wall 31 of the container body 30.
OSAWA TETSUHIRO
KAWAKAMI TAKERU
| JPS6311336U | 1988-01-25 | |||
| JPS63117759U | 1988-07-29 |
| US20050103803A1 | 2005-05-19 |