Hinge cap

Abstract

This technology provides further suppression of shower water entering the hinge cap. [Solution] The hinge cap according to the present invention comprises a cap body that is attached to a container and an upper lid connected to the cap body via a hinge connecting portion. The cap body includes at least a fitting cylindrical portion 14 having a body engaging portion 15. The upper lid includes at least an upper lid engaging portion 33 that engages with the outer surface of the body engaging portion 15 when the lid is closed, an inner sealing means 35 located inside the upper lid engaging portion 33 that abuts against the inner surface of the fitting cylindrical portion 14 around its entire circumference when the lid is closed, and an outer sealing means 36 located below the upper lid engaging portion 33 that abuts against the outer surface S3 of the mounting portion 11 of the cap body around its entire circumference when the lid is closed.

Claims

1. A hinged cap comprising a cap body that is attached to a container, and an upper lid connected to the cap body via a hinge connection, The cap body includes a mounting portion that is attached to the mouth of the container, a top plate portion that extends inward from the mounting portion and covers at least a part of the mouth, and a fitting cylinder portion that is erected from the top plate portion and has a body engagement portion. The top cover includes a top surface, an annular wall extending downward from the periphery of the top surface, and a top cover engaging portion that engages with the outer surface of the main body engaging portion when the top cover is closed. The upper lid further includes an inner sealing means located inside the upper lid engagement portion, which contacts the inner surface of the fitting cylinder portion around its entire circumference when the lid is closed, and an outer sealing means located below the upper lid engagement portion, which contacts the outer surface of the mounting portion around its entire circumference when the lid is closed. Hinge cap.

2. The upper inner surface of the fitting cylinder portion includes an inclined surface that slopes downward and inward toward the cap body. The inner sealing means includes an inner sealing ring that extends downward and inward from the inner surface of the annular wall and presses against the inclined surface over its entire circumference when the lid is closed. The hinge cap according to claim 1.

3. The outer sealing means includes an outer sealing ring that extends further downward than the base of the annular wall and presses against the outer surface of the mounting portion around its entire circumference when the lid is closed. A hinge cap according to claim 1 or 2.

4. The cap body further includes a cylindrical side wall that is outside the mounting portion, A gap is formed between the outer surface of the mounting portion and the inner surface of the cylindrical side wall. The outer sealing ring, when the lid is closed, moves away from the inner surface of the cylindrical side wall and enters the gap. The hinge cap according to claim 3.

5. The lower edge of the annular wall includes a lower end surface that contacts the cap body when the lid is closed, outside of the outer seal ring. An outer groove along the circumferential direction of the annular wall is formed on the lower end surface. The hinge cap according to claim 3.

6. The distance between the height position of the lower end surface and the height position of the deepest part of the outer groove is smaller than the distance between the height position of the lower end surface and the height position of the upper lid engagement portion when the lid is closed. The hinge cap according to claim 5.

7. The upper lid includes a flange that protrudes outward on the side opposite to the hinge connection and is positioned above the upper lid engagement portion when the lid is closed. A recess is formed below the flange portion of the annular wall, where the thickness of the annular wall is partially reduced. The hinge cap according to claim 3.

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