Patent attributes
A bottle container in which sealing of the opening of a container body filled with a chemical liquid etc. and installation of a shoulder part, an unsealing member, and a cap can be made at the same time and that has a shoulder part fall-off prevention mechanism. A bottle container (1) has a container body (2) having a hollow cylindrical neck (21) whose upper part is open and having a step formed on a container body shoulder; a shoulder part (3) screwed on the outer peripheral surface of the neck (21) and having on its upper surface a hollow cylindrical body (32) that has a spout at its head; a cap (4) screwed on the outer peripheral surface of the hollow cylindrical body (32) and having a spout sealing means; and an unsealing prevention member (5) installed between the shoulder par (3) and the cap (4). A projection-like reversing prevention member (38) is formed on the lower surface of the shoulder part (3), and the reversing prevention member (38) and the step of the container shoulder are in contact with each other in the direction in which reversing is impossible, forming a reversing prevention means.
