| 摘要 |
PROBLEM TO BE SOLVED: To provide a container having a closure member with a flat hinge cap free from shoulder part provided in the head part thereof, hard to generate an unexpected liquid leak and easy to open and close. SOLUTION: A thin-walled bonding part 3 is formed in a head part 10 so as to surround the central substrate 2 thereof and longitudinal and lateral ribs 5, 6 are provided in the rear surface of the substrate 2 and one end of a cylindrical body part 1 is thermally bonded to the bonding part 3. The stepped surface D adjacent to the outer surface of the side wall end part 15 of a hinge cap 20 in such a state that a closure member 30 consisting of the head part 10 and hinge cap 20 connected through a hinge 22 is formed in the periphery of the substrate 2 and the projection 13 formed in the part largest in rotary radius having the hinge 22 as a rotary shaft of the outer surface of the side wall end part 15 is fitted in the depressed part 7 formed in the stepped surface D. |
