Abstract: A spout assembly includes a spout and a cap. The cap includes an inner ring having an outer peripheral surface provided with a first region with a first outer diameter and a second region with a second outer diameter. The spout includes a side wall having an inner peripheral surface provided with a first region having a first inner diameter and a second region having a second inner diameter. When the cap is threadably engaged with the spout, the first region of the inner ring is in close contact with the first region of the side wall of the spout throughout the circumference, and the second region of the inner ring is in close contact with the second region of the side wall of the spout throughout the circumference.

Abstract: A spout assembly includes a spout and a cap. The cap includes an inner ring having an outer peripheral surface provided with a first region with a first outer diameter and a second region with a second outer diameter. The spout includes a side wall having an inner peripheral surface provided with a first region having a first inner diameter and a second region having a second inner diameter. When the cap is threadably engaged with the spout, the first region of the inner ring is in close contact with the first region of the side wall of the spout throughout the circumference, and the second region of the inner ring is in close contact with the second region of the side wall of the spout throughout the circumference.

Abstract: In a container having a lid member coupled to a container body by a hinge, the lid member includes a top surface, an inner ring formed on the top surface, and a projected part is formed on the top surface concentrically with the inner ring and which has an outer peripheral surface provided with an outer peripheral surface projection along the circumferential direction. The container body has a sidewall with a first inner peripheral surface having an inner peripheral surface projection formed along the circumferential direction, and a second inner peripheral surface having an inner diameter different from that of the first inner peripheral surface. When the lid member is closed, the inner ring seals the container body by being fitted to the second inner peripheral surface. The outer peripheral surface projection contacts and slides over the inner peripheral surface projection to lock the lid member the container body.

Abstract: Provided are a spout stopper that prevents a decrease in sealing performance to a cap without deterioration of liquid-shutting-off performance of a stopper body, and a packaging container using the spout stopper. The spout stopper includes: a stopper body including a cylindrical side wall; and a cap to be mounted from an upper end side that is one end of the side wall. A projection is formed at an upper end edge of the side wall so as to project outward from the side wall, and a top surface at an upper end of the side wall is in surface contact with a predetermined contact surface inside a cap over an entire circumference thereof in a state where the cap is mounted on the side wall.

Abstract: In a container having a lid member coupled to a container body by a hinge, the lid member has a top panel, and an inner ring formed on the top panel, the inner ring being fitted to an inner peripheral surface of a sidewall of the container body in a closed state to seal the container body. The inner ring has an outer peripheral surface on which an outer peripheral surface projection is formed along a circumferential direction, and the container body has an inner peripheral surface on which an inner peripheral surface projection is formed along the circumferential direction, in the vicinity of an end portion of the sidewall. When closing the lid member, the outer peripheral surface projection contacts and slides over the inner peripheral surface projection to cause the lid member to be locked to the container body, with the inner ring sealing the container body.

Abstract: A container includes a housing space, a first layer, a second layer and a gate mark. The first layer forms the housing space, and the second layer includes an adhered surface which is adhered externally to the first layer and a non-adhered surface which is not adhered to the first layer. The gate mark is formed on at least one of an inner surface of the first layer and the non-adhered surface.

Abstract: In a container having a lid member coupled to a container body by a hinge, the lid member has a top panel, and an inner ring formed on the top panel, the inner ring being fitted to an inner peripheral surface of a sidewall of the container body in a closed state to seal the container body. The inner ring has an outer peripheral surface on which an outer peripheral surface projection is formed along a circumferential direction, and the container body has an inner peripheral surface on which an inner peripheral surface projection is formed along the circumferential direction, in the vicinity of an end portion of the sidewall. When closing the lid member, the outer peripheral surface projection contacts and slides over the inner peripheral surface projection to cause the lid member to be locked to the container body, with the inner ring sealing the container body.

Abstract: A pour spout that is sufficiently rigid to be prevented from breaking due to ultrasonic vibrations during welding and that is readily separated from a packaging container being broken down, and a packaging container with the pour spout. The pour spout includes a cylindrical sidewall and a disk-like flange extending outwardly from one end of the sidewall. The flange has a to-be-cut portion that is a recess arranged annularly, and a rib disposed at an annular projection or at the to-be-cut portion.

Abstract: In a container having a lid member coupled to a container body by a hinge, the lid member includes a top surface, an inner ring formed on the top surface, and a projected part is formed on the top surface concentrically with the inner ring and which has an outer peripheral surface provided with an outer peripheral surface projection along the circumferential direction. The container body has a sidewall with a first inner peripheral surface having an inner peripheral surface projection formed along the circumferential direction, and a second inner peripheral surface having an inner diameter different from that of the first inner peripheral surface. When the lid member is closed, the inner ring seals the container body by being fitted to the second inner peripheral surface. The outer peripheral surface projection contacts and slides over the inner peripheral surface projection to lock the lid member the container body.

Abstract: Provided are a spout stopper that prevents a decrease in sealing performance to a cap without deterioration of liquid-shutting-off performance of a stopper body, and a packaging container using the spout stopper. The spout stopper includes: a stopper body including a cylindrical side wall; and a cap to be mounted from an upper end side that is one end of the side wall. A projection is formed at an upper end edge of the side wall so as to project outward from the side wall, and a top surface at an upper end of the side wall is in surface contact with a predetermined contact surface inside a cap over an entire circumference thereof in a state where the cap is mounted on the side wall.

Abstract: A storage container which allows a user to easily take out sheets from a dispensing opening when the number of sheets is small. A storage container includes: a container body including a top plate where a dispensing opening for taking out the sheets is provided, and an opening formed opposing the top plate; and a bottom lid which is formed of an integrally-molded resin, is detachably mounted to the container body, and closes the opening. The bottom lid includes: a flat plate portion; and an expanding/contracting part transformable from a first state where it protrudes from the flat plate portion up to a first height toward the inside of the container body, to a second state where it protrudes from the flat plate portion up to a second height higher than the first height, toward the inside of the container body.

Abstract: A plug in accordance with one aspect of the present invention is a plug for a container for containing a liquid, the plug comprising a plug body, a lid adapted to engage the plug body, and a columnar elastic body contained in the plug body and pierceable with an extraction needle; the plug body having an elastic body storage part for storing the elastic body, a liquid guide path communicating with the elastic body storage part, a plurality of axially extending longitudinal ribs formed on an inner wall surface facing the elastic body storage part, and axially extending groove parts formed between the plurality of longitudinal ribs, while a circle passing vertexes of the plurality of longitudinal ribs has a diameter smaller than that of the elastic body.

Abstract: A container includes a container body which is cylindrical and includes an opening portion, the container body having a container body rib on at least a portion of an outer peripheral surface of the opening portion, and a lid member coupled to the container body by a hinge such that the lid member is openable and closable relative to the opening portion of the container body. The lid member has a sidewall positioned such that the lid member externally contacts the opening portion when the lid member is closed. The sidewall has an inner side surface having a lid rib which the container body rib contacts and slides over in opening or closing the lid member. The container body and the lid member are structured such that in closing the lid member, before the container body rib contacts and slides over the lid rib, no part of the opening portion other than the container body rib comes into contact with the lid member.

Abstract: A storage container which allows a user to easily take out sheets from a dispensing opening when the number of sheets is small. A storage container includes: a container body including a top plate where a dispensing opening for taking out the sheets is provided, and an opening formed opposing the top plate; and a bottom lid which is formed of an integrally-molded resin, is detachably mounted to the container body, and closes the opening. The bottom lid includes: a flat plate portion; and an expanding/contracting part transformable from a first state where it protrudes from the flat plate portion up to a first height toward the inside of the container body, to a second state where it protrudes from the flat plate portion up to a second height higher than the first height, toward the inside of the container body.

Abstract: A moisture-proof container including: a container body; a lid hermetically closing the container body to be openable and closable; and a desiccant storage case that is put on a bottom portion of the container body. The desiccant storage case includes: an inner case having an opening at one end; a desiccant stored in the inner case; and a moisture transmission dustproof sheet to seal the opening of the inner case. The inner case has, at an outer circumferential wall thereof, a groove connecting between an open end and a bottom portion, the container body includes a base on a bottom plate, and the desiccant storage case is put in the container body such that the moisture transmission dustproof sheet abuts the base, and a gap is formed between the bottom plate of the container body, and the moisture transmission dustproof sheet.

Abstract: A plug in accordance with one aspect of the present invention is a plug for a container for containing a liquid, the plug comprising a plug body, a lid adapted to engage the plug body, and a columnar elastic body contained in the plug body and pierceable with an extraction needle; the plug body having an elastic body storage part for storing the elastic body, a liquid guide path communicating with the elastic body storage part, a plurality of axially extending longitudinal ribs formed on an inner wall surface facing the elastic body storage part, and axially extending groove parts formed between the plurality of longitudinal ribs, while a circle passing vertexes of the plurality of longitudinal ribs has a diameter smaller than that of the elastic body.

Abstract: A moisture-proof container including: a container body; a lid hermetically closing the container body to be openable and closable; and a desiccant storage case that is put on a bottom portion of the container body. The desiccant storage case includes: an inner case having an opening at one end; a desiccant stored in the inner case; and a moisture transmission dustproof sheet to seal the opening of the inner case. The inner case has, at an outer circumferential wall thereof, a groove connecting between an open end and a bottom portion, the container body includes a base on a bottom plate, and the desiccant storage case is put in the container body such that the moisture transmission dustproof sheet abuts the base, and a gap is formed between the bottom plate of the container body, and the moisture transmission dustproof sheet.