| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lid device for a bottle which is re-sealable after being unsealed, capable of reliably sealing the bottle even in a re-sealed state after the unsealing, and easily recyclable after disposal. <P>SOLUTION: The lid device for the bottle comprises a synthetic resin-made cap 1 and a sealing lid 2 formed of a metal plate, and the cap 1 comprises an inner plug part 4 and an outer cylinder 5. The inner plug part 4 and the outer cylinder 5 extend to an upper portion of an annular groove A1 of a bottle mouth A, and an inward annular projection 5a and an outward annular projection 5b are formed on a lower end part of the outer cylinder 5. A groove-shaped annular rib 10 with the outward annular projection 5b of the cap 1 fitted thereto is formed in the sealing lid 2. Therefore, high sealability can be ensured because the outer cylinder 5 is tightly attached to an outer surface of the bottle mouth A even when a slack-fitting effect to the bottle mouth A occurs on the middle plug part 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
