Cap unit and capped container

Abstract

The present application provides a cap unit capable of stably discharging a beverage in a container body. The cap body (8) has a bottom wall portion formed with a liquid passage hole (11), a peripheral wall portion (13) rising upward from the periphery of the bottom wall portion, a groove portion formed by cutting a part of the inner peripheral surface of the peripheral wall portion toward the bottom wall portion, and an internal thread portion provided on the inner peripheral surface of the peripheral wall portion. The cap body (8) has an upper cover (23) covering the upper portion of the cap body (8), a middle plug (24) embedded in the inner side of the cap body (8), an external thread portion (26) provided on the outer peripheral surface of the middle plug (24) and screwed with the internal thread portion, and a rib wall (28) located at a position higher than the external thread portion (26), extending in the circumferential direction from the outer peripheral surface of the middle plug (24), and protruding in the direction of expanding the diameter.

Description

TECHNICAL FIELD

[0001] The present application relates to a cap unit and a capped container. BACKGROUND

[0002] In the past, there has been a capped container provided with a cap unit (plug body) that closes an upper opening of a container body by being attached to a mouth neck portion of the container body (see, for example, Patent Literature 1 below).

[0003] Such a cap unit is provided with a cap body that is attached to a container body of an upper opening and is provided with a liquid passage hole that communicates with the inside of the container body, and a lid that is attached to the cap body in a state of being fitted into the inside of the cap body and is attached and detached to and from the cap body by screwing, thereby opening and closing the liquid passage hole, and has a configuration in which the lid closes the liquid passage hole by screwing of an inner thread portion provided to an inner peripheral portion of the cap body and an outer thread portion provided to an outer peripheral portion of the lid. In addition, a liquid passage groove that is cut in the up-and-down direction is provided to the outer peripheral portion of the lid.

[0004] In the capped container provided with such a cap unit, the container body is tilted from a state in which the screwing of the inner thread portion and the outer thread portion is partially released, so that the beverage (liquid) in the container body can be poured out from the liquid passage hole via the liquid passage groove without the lid being removed from the container body.

[0005] Patent Literature 1: Japanese Patent Application Publication No. 2014-210136

[0006] However, in the above-described conventional cap unit, when the beverage in the container body is poured out into a cup or the like, the amount of the beverage that flows out from the liquid passage hole via the liquid passage groove is adjusted by the degree (angle) of tilting of the container body.

[0007] In this case, depending on the amount of the beverage remaining in the container body and the like, pulsation of the beverage that flows out via the liquid passage groove sometimes causes the beverage to be scattered around, or the liquid passage of the beverage that flows out via the liquid passage groove becomes poor. In particular, the beverage sometimes collides with the inner thread portion on the cap body side, so that the flow rate of the beverage that flows out via the liquid passage groove becomes unstable. SUMMARY

[0008] The present application has been made in view of such a conventional situation, and has an object to provide a cap unit that can stably cause a beverage in a container body to flow out, and a capped container in which the use convenience can be further improved because of being provided with such a cap unit.

[0009] In order to achieve the above object, the present application provides the following means.

[0010] (1) A cap unit characterized by comprising:

[0011] The cap body is mounted on the container body with an upper opening and has a liquid passage hole communicating with the inner side of the container body; and

[0012] The cap, when inserted into the inner side of the cap body, can be freely installed and removed from the cap body by screwing it on, thereby opening and closing the liquid passage.

[0013] The main body of the above-mentioned hat has:

[0014] The bottom wall portion has the aforementioned liquid passage holes;

[0015] The peripheral wall portion is formed by rising upwards from around the aforementioned bottom wall portion;

[0016] The groove is formed such that a portion of the inner circumferential surface of the aforementioned peripheral wall portion is cut toward the aforementioned bottom wall portion; and

[0017] An internal thread portion is provided on the inner circumferential surface of the aforementioned peripheral wall portion.

[0018] The aforementioned cover has:

[0019] The top cover covers the upper part of the main body of the cap.

[0020] The middle bolt is embedded inside the cap body.

[0021] An external thread portion is provided on the outer peripheral surface of the aforementioned middle bolt and engages with the aforementioned internal thread portion; and

[0022] The rib wall is located above the external threaded portion and extends circumferentially from the outer peripheral surface of the middle bolt and protrudes in the direction of diameter expansion.

[0023] [2] The cap unit described in [1] above is characterized in that,

[0024] The cap body has an outlet portion that is continuous with the groove portion and protrudes in the direction of diameter expansion.

[0025] [3] The cap unit described in [2] above is characterized in that,

[0026] From the state where the cover closes the liquid passage, the cover is rotated in the opening direction within a specified angle range, so that the liquid passage is open and the rib wall is opposite to the outlet.

[0027] [4] The cap unit described in [2] or [3] above is characterized in that,

[0028] The aforementioned rib wall is configured to protrude further in the diameter expansion direction than the thread teeth forming the aforementioned external thread portion.

[0029] 〔5〕 The cap unit according to any one of the above items 2 to 4, characterized in that

[0030] The cap body has a flared portion that is formed by rising from the peripheral wall portion while gradually expanding in diameter toward the upper side,

[0031] The outlet portion is provided continuously with the groove portion and protrudes a part of the flared portion in the direction of expansion.

[0032] 〔6〕 The cap unit according to the above item 5, characterized in that

[0033] An inclined surface is provided on the inner side of the cap body, the inclined surface being inclined from the upper end of the peripheral wall portion toward the flared portion,

[0034] In a state where the rib wall opposes the outlet portion, both sides of the rib wall across the outlet portion are at a height position opposite the inclined surface.

[0035] 〔7〕 The cap unit according to the above item 5 or 6, characterized in that

[0036] A pair of outlet portions that are symmetrical with each other are provided at positions opposite each other in the flared portion,

[0037] A pair of rib walls that are symmetrical with each other are provided at positions opposite each other in the center plug.

[0038] 〔8〕 The cap unit according to any one of the above items 1 to 7, characterized in that the upper cover has a shape corresponding to the upper opening of the cap body.

[0039] 〔9〕 The cap unit according to any one of the above items 1 to 8, characterized in that a grip portion is provided at the upper portion of the upper cover.

[0040] 〔10〕 The cap unit according to any one of the above items 1 to 9, characterized in that

[0041] The cap body has:

[0042] An external thread portion provided on the outer peripheral surface of the peripheral wall portion and screwed with an internal thread portion provided on the inner peripheral surface of the container body; and

[0043] A waterproof gasket mounted to the outer peripheral portion of the lower end side of the peripheral wall portion and sealing between a protruding portion provided on the inner side of the container body and the cap body.

[0044] 〔11〕 The cap unit according to any one of the above items 1 to 10, characterized in that

[0045] The cover has a cover gasket, which is installed on the outer periphery of the lower end of the plug and seals the area around the liquid passage in the bottom wall with the plug.

[0046]

[12] A capped container, comprising:

[0047] The cap unit described in any of [1] to

[11] above; and

[0048] The container body is for mounting the aforementioned cap unit.

[0049]

[13] The capped container described in

[12] above is characterized in that,

[0050] The container body described above has a vacuum insulation structure.

[0051] As described above, according to the present invention, it is possible to provide a cap unit that allows beverage to flow steadily out of the container body, and a capped container whose ease of use is further improved by having such a cap unit. Attached Figure Description

[0052] Figure 1 This is a perspective view showing the closed state of a capped container having a cap unit according to an embodiment of the present invention.

[0053] Figure 2 It means possessing Figure 1 A perspective view of the capped container of the shown cap unit in the open state.

[0054] Figure 3 It means possessing Figure 1 The diagram shows a cross-sectional view of the capped container of the capped unit in its closed state.

[0055] Figure 4 It means possessing Figure 2 The diagram shows a cross-sectional view of the capped container of the cap unit in the open state.

[0056] Figure 5 It means Figure 1 A three-dimensional view of the structure of the cap unit shown.

[0057] Figure 6 It means Figure 1 The exploded three-dimensional view of the structure of the cap unit shown.

[0058] Figure 7 It means Figure 1 A three-dimensional view of the inner side of the cap unit shown.

[0059] Figure 8 It means in Figure 1 The diagram shows a three-dimensional view of the cap unit with the middle cover installed.

[0060] Figure 9 It means Figure 8 The diagram shows a three-dimensional view of the structure of the middle cover.

[0061] Explanation of reference numerals in the attached figures

[0062] 100…Capped container; 1…Cap unit; 2…Container body; 2d…Upper opening; 3…Outer container; 4…Inner container; 5…Vacuum insulation layer; 6…First internal thread; 7…Extend; 8…Cap body; 8a…Upper opening; 8b…Abutting surface; 9…Lid; 10…Tea filter component; 11…Liquid passage; 12…Bottom wall; 13…Peripheral wall; 14…Expanded wall; 15…Pouring outlet; 16…Groove; 17…Inclined surface; 18…Upper flange; 19…First external thread; 20…Waterproof gasket; 21…Lower flange; 22…Second internal thread; 23…Top cover; 24…Middle plug; 25…Holding part; 26…Second external thread; 27…Lid gasket; 28…Rib wall; 29…Tea filter body; 29c…Flange; 29d…Inclined surface; 30…Middle cover. Detailed Implementation

[0063] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0064] As one embodiment of the present invention, for example having Figures 1 to 7 The capped container 100 of the shown cap unit 1 will be described.

[0065] also, Figure 1 This is a perspective view showing the closed state of a capped container 100 equipped with cap unit 1. Figure 2 This is a perspective view showing the open state of a capped container 100 equipped with cap unit 1. Figure 3 This is a cross-sectional view showing the closed state of the capped container 100 with cap unit 1. Figure 4 This is a cross-sectional view showing the open state of the capped container 100 with cap unit 1. Figure 5 This is a three-dimensional diagram showing the structure of cap unit 1. Figure 6 This is an exploded 3D view showing the structure of cap unit 1. Figure 7 This is a three-dimensional view showing the inner side of cap unit 1.

[0066] like Figures 1 to 4 As shown, the capped container 100 of this embodiment is a tea filter container, that is, it has a cap unit 1 of this embodiment and a container body 2 for the cap unit 1 to be detachably installed, and has a tea filter for putting tea leaves or the like into the container body 2 and extracting them.

[0067] The container body 2, for example, has a bottomed cylindrical outer container 3 and an inner container 4 made of stainless steel or the like. It is a double-layered container formed by joining the openings of the inner container 4 inside the outer container 3. Furthermore, a vacuum insulation layer 5 is provided between the outer container 3 and the inner container 4. The vacuum insulation layer 5 can be formed, for example, by blocking an exhaust vent located at the center of the bottom surface of the outer container 3 within a chamber that has been depressurized (evacuated) to a high vacuum.

[0068] The container body 2 has: a generally circular bottom portion 2a; a cylindrical body portion 2b that rises vertically from the outer periphery of the bottom portion 2a into a generally cylindrical shape; and a generally cylindrical neck portion 2c that narrows at the upper part of the cylindrical body portion 2b. In addition, the upper end of the neck portion 2c serves as the upper opening portion 2d of the container body 2 and has a circular opening.

[0069] The inner circumferential surface of the neck 2c is narrower than the inner circumferential surface of the body 2b. Furthermore, a first internal thread 6 is provided on the inner circumferential surface of the neck 2c. The first internal thread 6 is composed of helical threads protruding downwards from the upper end of the neck 2c. Below the first internal thread 6, an annular protrusion 7 protrudes along the entire circumference of the inner circumference of the container body 2.

[0070] Furthermore, the capped container 100 of this embodiment has a generally cylindrical shape, but the shape of the capped container 100 is not particularly limited and can be appropriately changed according to size, appearance design, etc. In addition, painting, printing, etc., can also be performed on the outer peripheral surface of the container body 2.

[0071] like Figures 3 to 7 As shown, the cap unit 1 of this embodiment constitutes the plug of the upper opening 2d of the closed container body 2, and includes: a cap body 8; a cover 9, which is detachably mounted on the cap body 8; and a tea filter component 10, which is detachably mounted relative to the cap body 8.

[0072] The cap body 8 is made of a heat-resistant resin such as polypropylene (PP). The cap body 8 has: a liquid passage hole 11 communicating with the inside of the container body 2; a bottom wall portion 12 having the liquid passage hole 11 formed thereon; a peripheral wall portion 13 formed from the periphery of the bottom wall portion 12 upwards; an expanding wall portion 14 formed from the peripheral wall portion 13 upwards while gradually expanding in diameter; a pair of outlet portions 15, with a portion of the expanding wall portion 14 protruding in the expanding direction; and a pair of groove portions 16 continuous with the outlet portions 15 and formed by cutting a portion of the inner peripheral surface of the peripheral wall portion 13 toward the bottom wall portion 12.

[0073] The through-hole 11 is circular in shape and opens in the center of the bottom surface of the bottom wall portion 12. The bottom wall portion 12 is inclined downward (reduced in diameter) from the peripheral wall portion 13 toward the through-hole 11. The peripheral wall portion 13 is provided with the same diameter (cylindrical shape) between the bottom wall portion 12 and the flared wall portion 14. The flared wall portion 14 is inclined upward (increased in diameter) from the peripheral wall portion 13 toward the upper end portion of the cap main body 8.

[0074] A pair of discharge outlet portions 15 are symmetrically arranged at positions opposite to each other in the flared wall portion 14. Each of the discharge outlet portions 15 is inclined (increased in diameter) from the peripheral wall portion 13 toward the upper end portion of the cap main body 8, larger than the flared wall portion 14, by making a part of the flared wall portion 14 protrude in the direction of increased diameter. Thus, the upper end portion of the cap main body 8 opens as an upper opening portion 8a of the cap main body 8 in a substantially elliptical shape.

[0075] A pair of groove portions 16 are symmetrically arranged at positions opposite to each other in the peripheral wall portion 13. Each of the groove portions 16 is cut in the up-and-down direction with a constant width corresponding to the discharge outlet portion 15.

[0076] On the inner side of the cap main body 8, an inclined surface 17 is provided to incline from the upper end of the peripheral wall portion 13 toward the flared wall portion 14 over the entire circumference. On the other hand, on the outer side of the cap main body 8, an upper flange portion 18 is provided to protrude in the direction of increased diameter from between the peripheral wall portion 13 and the flared wall portion 14 over the entire circumference.

[0077] A first external thread portion 19 is provided on the outer circumferential surface of the peripheral wall portion 13 (cap main body 8). The first external thread portion 19 is composed of thread teeth protruding in a spiral shape from the lower end side of the peripheral wall portion 13 toward the upper side. Thus, the cap main body 8 is detachably attached to the container main body 2 in a state of being fitted into the inside of the container main body 2 from the upper opening portion 2d of the container main body 2, by screwing the thread teeth of the first internal thread portion 6 and the first external thread portion 19 to each other.

[0078] Further, the cap main body 8 covers the upper opening portion 2d of the container main body 2 by abutting the upper flange portion 18 against the upper end portion of the mouth neck portion 2c in a state of being attached to the mouth neck portion 2c of the container main body 2.

[0079] A waterproof gasket 20 is detachably attached to the outer circumferential portion of the lower end side of the peripheral wall portion 13 (cap main body 8). The waterproof gasket 20 is a ring-shaped sealing member for closing the inside of the container main body 2 from the cap main body 8, and is composed of a rubber member such as silicone rubber or an elastic member such as an elastomer, for example.

[0080] A lower flange portion 21 is provided to protrude in the direction of increased diameter on the outer circumferential portion of the lower end side of the cap main body 8. On the other hand, a ring-shaped fitting recess portion 20a is provided on the inner circumferential surface of the waterproof gasket 20 over the entire circumference. The waterproof gasket 20 is fitted to the outer circumferential portion of the lower end side of the cap main body 8 over the entire circumference in a state of being fitted into the fitting recess portion 20a by the lower flange portion 21.

[0081] In addition, an elastic flange portion 20b is provided at the outer peripheral portion of the waterproof gasket 20. The elastic flange portion 20b has a shape that protrudes while bending downward from the upper end of the outer peripheral surface of the waterproof gasket 20.

[0082] When the cap main body 8 is attached to the container main body 2, the waterproof gasket 20 becomes in a state of being in close contact with the protruding portion 7 over the entire circumference while elastically deforming the elastic flange portion 20b. Thus, the protruding portion 7 and the cap main body 8 can be sealed.

[0083] On the other hand, the waterproof gasket 20 can be removed from the outer peripheral portion of the lower end side of the cap main body 8 by elastically deforming (stretching and elongating) itself. Thus, the waterproof gasket 20 and the cap main body 8 can be independently cleaned, and the waterproof gasket 20 and the cap main body 8 can be kept hygienic.

[0084] A second internal thread portion 22 is provided at the inner peripheral surface of the peripheral wall portion 13 (cap main body 8). The second internal thread portion 22 is composed of thread teeth that protrude helically downward from the upper end side of the peripheral wall portion 13.

[0085] The cover 9 is a portion that opens and closes the liquid passage 11, and has, for example, an upper cover 23 and a middle plug 24 composed of a heat-resistant resin such as PP.

[0086] The upper cover 23 is a portion that covers the upper portion of the cap main body 8, has a substantially elliptical shape corresponding to the upper portion opening 8a of the cap main body 8, and is formed in a flat plate shape. In addition, a gripping portion 25 is provided at the upper portion of the upper cover 23. The gripping portion 25 is a portion for a user to grip, and is provided to protrude in a fin shape from the central portion of the upper surface of the upper cover 23.

[0087] The middle plug 24 is a portion that is embedded inside the cap main body 8, has a bottomed substantially cylindrical shape, and is integrally attached to the central portion of the lower surface of the upper cover 23 by, for example, welding. Inside the middle plug 24, a heat insulating material S composed of, for example, a foamed polyurethane resin is provided as a heat insulating layer. In addition, as the heat insulating layer, air (voids) can be provided instead of the above-mentioned heat insulating material S.

[0088] A second external thread portion 26 is provided at the outer peripheral surface of the middle plug 24. The second external thread portion 26 is composed of thread teeth that protrude helically upward from the lower end side of the outer peripheral surface of the middle plug 24. Thus, the cover 9 is attached to the cap main body 8 in a state of being embedded inside the cap main body 8 from the upper portion opening 8a of the cap main body 8, and is attached to the cap main body 8 so as to be detachable with respect to the cap main body 8 by screwing the thread teeth that constitute the second internal thread portion 22 and the second external thread portion 26 to each other.

[0089] Further, the second internal thread portion 22 and the second external thread portion 26 are constituted by a double thread which is complementary to each other. In the case of using a double thread, the cap body 9 can be attached to and detached from the cap main body 8 by a small number of rotation operations (about 450° in the present embodiment).

[0090] On the outer peripheral portion of the lower end side of the center pin 24, a cap gasket 27 is attached and detached freely. The cap gasket 27 is a ring-shaped sealing member which seals between the periphery of the liquid passage 11 of the bottom wall portion 12 (the inner side of the cap main body 8) and the center pin 24, and is constituted by an elastic member such as a silicone rubber or the like which has heat resistance, similarly to the waterproof gasket 20.

[0091] On the outer peripheral portion of the lower end side of the center pin 24, a ring-shaped fitting groove 24a is provided over the entire circumference. The cap gasket 27 is fitted to the fitting groove 24a over the entire circumference.

[0092] The cap gasket 27 becomes a state of being in close contact with the periphery of the liquid passage 11 over the entire circumference while being elastically deformed when the cap body 9 is attached to the cap main body 8. Thereby, the liquid passage 11 (the inner side of the cap main body 8) and the center pin 24 (the cap body 9) can be sealed.

[0093] On the other hand, the cap gasket 27 can be removed from the outer peripheral portion of the lower end side of the center pin 24 by elastically deforming (tensile elongation) itself. Thereby, the cap gasket 27 and the cap body 9 can be cleaned independently, and the cap gasket 27 and the cap body 9 can be kept hygienic.

[0094] On the center pin 24, a pair of rib walls 28 which are symmetrical to each other are provided at positions which are opposed to each other. Each rib wall 28 is positioned at a position which is higher than the second external thread portion 26, and is provided so as to extend in the circumferential direction from the outer peripheral surface of the center pin 24 and protrude in the diameter expanding direction. Further, the rib wall 28 is provided so as to protrude in the diameter expanding direction more than the thread of the second external thread portion 26. Furthermore, the rib wall 28 is provided so as to extend in the circumferential direction more than the width of the groove portion 16.

[0095] The tea strainer member 10 constitutes a tea strainer, and has, for example, a bottomed substantially cylindrical tea strainer main body 29 which is constituted by a heat resistant resin such as PP or the like. Further, the inner diameter of the tea strainer main body 29 (the tea strainer member 10) is the same as the inner diameter of the liquid passage 11.

[0096] On the periphery of the tea strainer main body 29, a plurality of slits 29a which extend in the vertical direction are arranged in the vertical direction and in the circumferential direction. Further, on the bottom portion of the tea strainer main body 29, a plurality of slits 29a which extend in the circumferential direction are arranged concentrically.

[0097] The upper end portion of the tea strainer main body 29 is an upper opening portion 29b of the tea strainer main body 29, and is circular in shape. In addition, a flange portion 29c is provided protruding in a diameter-increasing direction at the upper end portion of the tea strainer main body 29. Further, an inclined surface 29d is provided at the upper end portion of the tea strainer main body 29, inclined in a manner that the outer periphery of the flange portion 29c is tapered upward.

[0098] On the other hand, an abutting surface 8b is provided at the lower end portion of the cap main body 8, which abuts against the inclined surface 29d. The abutting surface 8b is inclined to the inside of a lower cylindrical portion 8c, which protrudes downward from the periphery of the liquid passage hole 11 of the bottom wall portion 12, over the entire circumference.

[0099] The tea strainer member 10 is rotatably attached to the cap main body 8 in a state in which the flange portion 29c is sandwiched between the lower end portion (lower cylindrical portion 8c) of the cap main body 8 and the waterproof gasket 20.

[0100] In the cap unit 1 of the present embodiment having the above structure, when the tea strainer member 10 is attached to the cap main body 8, the tea strainer member 10 is pressed against the bottom of the cap main body 8 while being rotated, whereby the waterproof gasket 20 is elastically deformed, and the flange portion 29c can be easily sandwiched between the lower end portion (lower cylindrical portion 8c) of the cap main body 8 and the waterproof gasket 20. Thus, the tea strainer member 10 can be easily and stably attached to the cap main body 8.

[0101] On the other hand, in the cap unit 1 of the present embodiment, the tea strainer member 10 is easily attached to and detached from the cap main body 8 in a state in which the cap main body 8 is removed from the container main body 2, and the cap unit 1 can be used with the tea strainer member 10 removed. Further, by making the inner diameter of the tea strainer member 10 the same as the inner diameter of the liquid passage hole 11, the tea leaves or the like can be easily taken out of or put into the tea strainer member 10. Thus, the cleanability of the tea strainer member 10 can be improved.

[0102] In the capped container 100 provided with the cap unit 1 of the present embodiment, from a state in which the lid 9 closes the liquid passage hole 11 as shown in Figs. 1 and 2, Figure 1 and Figure 3 the lid 9 is turned in the opening direction by a predetermined angle range (about 90°), and thus becomes a state in which the pair of spout portions 15 and the liquid passage hole 11 are open, as shown in Figs. 3 and 4. Figure 2 and Figure 4 From this state, by tilting the container main body 2, the beverage (liquid) in the container main body 2 can be poured out from the liquid passage hole 11 through the groove portion 16 and the spout portions 15 to a cup or the like without removing the lid 9 from the cap main body 8.

[0103] In the cap unit 1 of the present embodiment, in the state where the pair of spout portions 15 and the liquid passage hole 11 described above are open, the pair of rib walls 28 are opposed to the pair of spout portions 15. In addition, in the state where the pair of rib walls 28 are opposed to the pair of spout portions 15, the both sides of the rib wall 28 across the spout portion 15 are at the height position opposed to the inclined surface 17.

[0104] Thus, in the cap unit 1 of the present embodiment, when the beverage (liquid) in the container main body 2 is poured out through the groove portion 16 and the spout portion 15, the beverage hits the rib wall 28, and thus it is possible to restrict the flow rate of the beverage flowing through the groove portion 16 and the spout portion 15, and stabilize it. As a result, in the cap unit 1 of the present embodiment, it is possible to prevent the beverage from being scattered around due to pulsation of the beverage, and to improve the liquid break of the beverage.

[0105] As described above, in the capped container 100 provided with the cap unit 1 of the present embodiment described above, further improvement in convenience of use can be achieved.

[0106] Further, the present application is not necessarily limited to the above-described embodiments, and various modifications can be made within the scope of the gist of the present application.

[0107] For example, in the above-described cap unit 1, it is also possible to provide, for example, the structure of the middle cover 30 as shown in FIGS. 12A and 12B on the basis of the above-described structure. Figure 8 and Figure 9 Further, in the above-described cap unit 1, it is also possible to provide, for example, the structure of the middle cover 30 as shown in FIGS. 12A and 12B on the basis of the above-described structure. Figure 8 is a perspective view showing the state where the middle cover 30 is attached to the cap unit 1. Figure 9 is a perspective view showing the structure of the middle cover 30.

[0108] The middle cover 30 is composed of, for example, a heat-resistant resin such as polypropylene (PP), and has a circular plate shape corresponding to the liquid passage hole 11. In addition, in the middle cover 30, a plurality of slits 30a extending in one direction in the plane are arranged in a direction orthogonal to the one direction in the plane. Further, a pair of leg portions 30b are provided in the outer peripheral portion on the lower surface side of the middle cover 30. The pair of leg portions 30b are provided at mutually opposed positions around the middle cover 30 so as to extend in the circumferential direction of the middle cover 30 and protrude downward.

[0109] The middle cover 30 is attached to and detached from the cap main body 8 by fitting the pair of leg portions 30b into the upper opening portion 29b of the tea strainer main body 29.

[0110] In the cap unit 1 provided with such a middle cover 30, it is possible to prevent the tea leaves accommodated in the tea strainer member 10 from flowing out of the liquid passage hole 11 together with the beverage (liquid) in the container main body 2 by the middle cover 30.

[0111] Further, in the above-described cap unit 1, it is not necessarily limited to the above-described structure of the tea strainer member 10 in which the plurality of slits 29a are provided in the tea strainer body 29, and for example, a tea strainer member 10 in which the tea strainer body 29 is provided with a plurality of hole portions in a mesh shape can also be used.

[0112] Further, in the above-described embodiment, the capped container 100 having the heat retaining / cold retaining function by the container body 2 having the above-described vacuum heat insulating structure is exemplified, but the present application can be applied to a capped container having a container body not having the vacuum heat insulating structure.

Claims

1. A cap unit, characterized in that, have: A cap body is mounted on a container body with an upper opening and has a liquid passage hole communicating with the inner side of the container body; and The cap, when inserted into the inner side of the cap body, can be freely installed and detached from the cap body by screwing it on, thereby opening and closing the liquid passage. The cap body has: The bottom wall portion has the aforementioned liquid passage hole; The peripheral wall portion is formed by rising upwards from around the bottom wall portion; The groove is formed such that a portion of the inner circumferential surface of the peripheral wall portion is cut toward the bottom wall portion; An internal thread portion is provided on the inner circumferential surface of the peripheral wall portion; The outlet portion is continuous with the groove portion and protrudes in the direction of diameter expansion; as well as The expanded wall portion is formed by gradually widening its diameter upwards from the peripheral wall portion. The cover has: The top cover covers the upper part of the main body of the cap; The middle bolt is embedded inside the cap body; An external thread portion is provided on the outer peripheral surface of the middle bolt and engages with the internal thread portion; and A pair of ribs, located above the external threaded portion, extend circumferentially from the outer peripheral surface of the central bolt and protrude in the direction of diameter expansion. The outlet portion is configured to be continuous with the groove portion and to have a portion of the expanded wall portion protrude in the diameter expansion direction. An inclined surface is provided on the inner side of the cap body, the inclined surface being inclined from the upper end of the peripheral wall portion toward the expanded wall portion. From the state where the cover closes the liquid passage, the cover is rotated in the opening direction within a specified angle range, thereby opening the liquid passage and making the rib wall opposite the outlet. In the state where the rib wall is opposite the outlet, the two sides of the rib wall across the outlet are at a height position opposite to the inclined surface.

2. The cap unit according to claim 1, characterized in that, The inclination angle of the inclined surface relative to the peripheral wall is smaller than the inclination angle of the expanded wall relative to the peripheral wall.

3. The cap unit according to claim 1, characterized in that, The rib wall is configured to protrude further in the diameter expansion direction than the thread teeth forming the external thread portion.

4. The cap unit according to claim 1, characterized in that, A pair of symmetrically positioned outlet portions are provided at opposite locations on the expanded wall portions. At the opposite positions of the bolt, there is a pair of symmetrical ribs.

5. The cap unit according to any one of claims 1 to 4, characterized in that, The top cover has a shape corresponding to the upper opening of the cap body.

6. The cap unit according to any one of claims 1 to 5, characterized in that, A gripping part is provided on the upper part of the cover.

7. The cap unit according to any one of claims 1 to 6, characterized in that, The cap body has: An external threaded portion is provided on the outer peripheral surface of the peripheral wall portion and engages with an internal threaded portion provided on the inner peripheral surface of the container body; and A waterproof gasket is installed on the outer periphery of the lower end of the peripheral wall portion to seal the protrusion located inside the container body with the cap body.

8. The cap unit according to any one of claims 1 to 7, characterized in that, The cover has a cover gasket, which is installed on the outer periphery of the lower end of the plug to seal the area around the liquid passage in the bottom wall and the plug.

9. A capped container, characterized in that, have: The cap unit according to any one of claims 1 to 8; and The container body is for mounting the cap unit.

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