Cap unit and container with cap

Abstract

To provide a cap unit in which a cap body, a lid body, and a plug body are each structured so as to be separable from each other, thereby improving washability of each of them.SOLUTION: A cap unit 1A that can be detachably attached to a container body 2 having an open top comprises: a cap body 7 provided with a liquid port 14 that closes an upper opening 2d of the container body 2 and communicates with the inside of the container body 2; a lid body 9 rotatably attached to the cap body 7 via a hinge part 8; a plug body 24 detachably attached to the inside of the lid body 9; and a plug packing 26 that opens and closes the liquid port 14 by rotating the lid body 9, in a state that the plug body 24 is attached. In a state that the plug body 24 is attached to the lid body 9, the plug body 24 constitutes a part of the hinge part 8, and in a state that the plug 24 is removed from the lid part 9, the lid body 9 can be removed from the cap body 7.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cap unit and a container with a cap. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there have been capped containers that include a cap unit that can be detachably attached to the mouth and neck portion of a container body that is open at the top (see, for example, Non-Patent Document 1).

[0003] The cap unit comprises a cap body which closes the upper opening of the container body and has a liquid passage hole which communicates with the inside of the container body, a lid body which is rotatably attached to the cap body via a hinge portion, and a stopper body which is provided on the inside of the lid body and opens and closes the liquid passage hole by rotating the lid body.

[0004] The cap unit also has a lid locking mechanism that fixes the lid body, which is biased in the direction of opening the liquid passage by a biasing member provided on the hinge portion, to the cap body at a position where the plug body blocks the liquid passage.

[0005] In a capped container equipped with such a cap unit, when the lid lock mechanism is released from its fixed position, the lid rotates due to the bias of the biasing member, and the liquid passage hole is opened, making it possible to drink the beverage in the container body through the liquid passage hole. [Prior art documents] [Non-patent literature]

[0006] [Non-Patent Document 1] Tiger Corporation Stainless Steel Mini Bottle Sahara Mug Model Number MMQ-S Instruction Manual https: / / www.tiger-forest.com / _var / files / manual-box / 881 / mmq_s.pdf Summary of the Invention [Problem to be solved by the invention]

[0007] However, in the conventional cap unit described above, it is difficult to clean the space between the lid and the plug, and it is prone to becoming unsanitary. Furthermore, when cleaning the cap unit, residual water that accumulates between the lid and the plug and in the hinge section makes it difficult to dry, and from a sanitary standpoint, a structure that is easy to clean and easy to drain and dry is desired.

[0008] The present invention has been proposed in consideration of the above-mentioned conventional circumstances, and aims to provide a cap unit in which the cap body, lid body, and stopper body are each separable, thereby improving the cleanability of each, and a capped container that, by being equipped with such a cap unit, allows for further improvement in usability. [Means for solving the problem]

[0009] In order to achieve the above object, the present invention provides the following means. [1] A cap unit that can be detachably attached to a container body having an open top, a cap body that closes an upper opening of the container body and has a liquid passage hole that communicates with the inside of the container body; a lid body rotatably attached to the cap body via a hinge portion; A plug body removably attached to the inside of the lid body; a plug packing that opens and closes the liquid passage port by rotation of the lid body when attached to the plug body, When the plug is attached to the lid, the plug constitutes a part of the hinge portion, A cap unit, characterized in that, in a state in which the plug body is removed from the lid body, the lid body is removable from the cap body. [2] A detachment mechanism is provided for detachably attaching the plug to the lid, The cap unit described in [1] is characterized in that the attachment / detachment mechanism has a structure in which the plug is attached to the lid body by sliding the plug body toward the hinge portion from a state in which the plug body is abutted against the inner top surface of the lid body. [3] The cap unit described in [2], wherein the attachment / detachment mechanism has a structure for engaging the plug body with the lid body in the front-to-back, up-down, and left-to-right directions. [4] The cap unit described in [1], characterized in that it is provided with an anti-rotation mechanism that prevents the lid body from being rotated toward the other side in the rotation direction when the lid body is rotated toward one side in the rotation direction to open the liquid passage port. [5] The cap unit according to any one of [1] to [4] above; A capped container comprising: a container body to which the cap unit is attached. Effect of the Invention

[0010] As described above, according to the present invention, there is provided a cap unit in which the cap body, lid body, and stopper body are each separable, thereby improving the cleanability of each while maintaining hygiene, and a capped container which, by being equipped with such a cap unit, allows for further improved usability. [Brief description of the drawings]

[0011] [Figure 1] 1 is a cross-sectional view showing a configuration of a capped container equipped with a cap unit according to a first embodiment of the present invention. [Diagram 2] 2 is a partially cutaway perspective view showing a state in which a cover body of the cap unit shown in FIG. 1 is in a closed position. [Diagram 3] 2 is a perspective view showing a state in which a lid body of the cap unit shown in FIG. 1 is in an open position. [Figure 4] 2 is a perspective view showing a state before a plug is attached to a lid of the cap unit shown in FIG. 1. FIG. [Diagram 5]2 is a perspective view showing a state in which a plug body is removed from a lid body of the cap unit shown in FIG. 1. FIG. [Figure 6] 2 is a partially cutaway perspective view showing a state in which the plug has been removed from the lid of the cap unit shown in FIG. 1 and the lid can be removed. FIG. [Figure 7] 2A and 2B show the configuration of the plug of the cap unit shown in FIG. 1, in which (A) is a perspective view seen from above, and (B) is a perspective view seen from below. [Figure 8] 11 is a perspective view showing the configuration of a capped container having a cap unit according to a second embodiment of the present invention, in which the cap unit is in an open position. FIG. [Figure 9] 9 is a perspective view showing a state before a plug is attached to a lid of the cap unit shown in FIG. 8. FIG. [Figure 10] 9 is a perspective view showing a state in which a plug body is removed from a lid body of the cap unit shown in FIG. 8. FIG. [Figure 11] 9 is a cross-sectional view taken along line AA in FIG. 8 in a state in which the rotation of the lid body in the closing direction is prevented by the anti-rotation mechanism of the cap unit shown in FIG. 8. [Figure 12] 9 is a cross-sectional view taken along line BB in FIG. 8 in a state in which the rotation of the lid body in the closing direction is prevented by the anti-rotation mechanism of the cap unit shown in FIG. 8. [Figure 13] 9 is a cross-sectional view taken along line AA in FIG. 8 before the rotation of the lid body in the closing direction is prevented by the anti-rotation mechanism of the cap unit shown in FIG. 8. [Figure 14] 9 is a cross-sectional view taken along line BB in FIG. 8 before the rotation of the lid body in the closing direction is prevented by the anti-rotation mechanism of the cap unit shown in FIG. 8. [Figure 15] 13 is a perspective view showing the configuration of a capped container having a cap unit according to a third embodiment of the present invention, in which the cap unit is in an open position. FIG. [Figure 16] 16 is a perspective view showing a state before a plug is attached to a lid of the cap unit shown in FIG. 15. FIG. [Figure 17]16 is a perspective view showing a state in which a plug body is removed from a lid body of the cap unit shown in FIG. 15. FIG. [Figure 18] 16A and 16B show the configuration of the plug of the cap unit shown in FIG. 15, in which (A) is a perspective view seen from above, and (B) is a perspective view seen from below. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. (First embodiment) First, as a first embodiment of the present invention, a capped container 100 including a cap unit 1A shown in, for example, FIGS. 1 to 7 will be described.

[0013] FIG. 1 is a cross-sectional view showing the configuration of a capped container 100 including a cap unit 1A. FIG. 2 is a partially cutaway perspective view showing a state in which the lid body 9 of the cap unit 1A is in a closed position. FIG. 3 is a perspective view showing a state in which the lid body 9 of the cap unit 1A is in an open position. FIG. 4 is a perspective view showing a state before the plug body 24 is attached to the lid body 9 of the cap unit 1A. FIG. 5 is a perspective view showing a state in which the plug body 24 is removed from the lid body 9 of the cap unit 1A. FIG. 6 is a partially cutaway perspective view showing a state in which the plug body 24 is removed from the lid body 9 of the cap unit 1A and the lid body 9 can be removed. FIG. 7 shows the configuration of the plug body 24 of the cap unit 1A, where (A) is a perspective view from above and (B) is a perspective view from below.

[0014] As shown in FIG. 1, a capped container 100 of this embodiment includes a cap unit 1A of this embodiment and a container body 2 to which the cap unit 1A is detachably attached.

[0015] The capped container 100 is a beverage container capable of keeping a beverage (liquid) contained in the container body 2 hot or cold by the container body 2 having a vacuum insulation structure.

[0016] Specifically, the container body 2 has a bottomed cylindrical outer container 3 and an inner container 4 made of, for example, stainless steel, and is configured as a double-structure container in which the mouths of the two containers are joined together with the inner container 4 housed inside the outer container 3.

[0017] In addition, 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 a vent hole provided on the bottom surface of the outer container 3 in a chamber that is depressurized (evacuated) to a high vacuum.

[0018] The container body 2 has a substantially circular bottom 2a, a body 2b that stands up in a substantially cylindrical shape from the outer periphery of the bottom 2a, and a substantially cylindrical mouth neck 2c that is tapered in diameter on the upper side of the body 2b.

[0019] The upper end of the mouth / neck portion 2c opens in a circular shape as the upper opening 2d of the container body 2. The inner circumferential surface of the mouth / neck portion 2c (the upper side of the body portion 2b) is narrower in diameter than the inner circumferential surface of the body portion 2b. Furthermore, a ring-shaped protruding portion 6 is provided protruding around the entire circumference near the lower side of the inner circumferential surface of the mouth / neck portion 2c (below the narrowed portion at the upper side of the body portion 2b).

[0020] Although the capped container 100 of this embodiment has a generally cylindrical external shape as a whole, the external shape of the capped container 100 is not particularly limited and can be modified as appropriate according to the size, design, etc. In addition, the outer circumferential surface of the container body 2 may be painted, printed, or the like.

[0021] The cap unit 1A of this embodiment includes a cap body 7 that closes the upper opening 2d of the container body 2 described above, and a lid body 9 that is rotatably attached to the cap body 7 via a hinge portion 8.

[0022] In the following explanation, the side where the lid body 9 is attached to the cap body 7 via the hinge portion 8 will be referred to as the "rear side (back side)" of the cap unit 1A (capped container 100), and the opposite side will be referred to as the "front side (front surface side)" of the cap unit 1A (capped container 100), and the direction connecting these will be referred to as the front-to-rear direction.

[0023] 1, the side where the lid 9 is located relative to the container body 2 is referred to as the "upper side", the direction where the container body 2 is located relative to the lid 9 is referred to as the "lower side", and the direction connecting these will be referred to as the up-down direction. The direction perpendicular to the up-down direction will be referred to as the radial direction, and the direction perpendicular to the front-rear direction of the radial direction will be referred to as the left-right direction.

[0024] As shown in Figs. 1 to 3, the cap body 7 has an outer cylinder member 10 and a mouth-forming member 11 made of, for example, a heat-resistant resin.

[0025] The outer tube member 10 has a peripheral wall portion 10a formed in an approximately cylindrical shape so as to be continuous with the trunk portion 2b of the container body 2, and an upper wall portion 10c having an opening 10b at the upper part of the peripheral wall portion 10a that is smaller in diameter than the peripheral wall portion 10a.

[0026] The cap body 7 is detachably attached by screwing to the mouth-neck portion 2c of the container body 2. For this purpose, a male screw portion 12 is provided on the outer peripheral surface of the lower mouth-forming portion 11b of the mouth-forming member 11 described later. Meanwhile, a female screw portion 13 that screws into the male screw portion 12 is provided on the inner peripheral surface of the mouth-neck portion 2c (the upper side of the body portion 2b).

[0027] The mouth forming member 11 has an upper mouth forming portion 11a protruding upward from the opening 10b of the outer tube member 10, a lower mouth forming portion 11b protruding downward from the opening 10b of the outer tube member 10, and a bottom wall portion 11c in which a liquid passage hole 14 and an air passage hole 15 are formed.

[0028] The upper mouth forming portion 11a is provided as a pouring spout or a drinking spout, and is cut obliquely and protrudes upward from the front side of the mouth forming member 11.

[0029] The lower mouth forming portion 11b is a portion that is fitted into the inside of the container body 2 from the upper opening 2d of the container body 2, and is provided protruding in a substantially cylindrical shape from the lower side of the upper mouth forming portion 11a.

[0030] The bottom wall portion 11c closes the upper portion of the lower opening forming portion 11b and is provided so that its front side is inclined downward more than its rear side.

[0031] The liquid passage port 14 is located on the front side of the bottom wall portion 11c and is provided with a circular opening.

[0032] The air vent 15 is located on the rear side of the bottom wall portion 11c, and is smaller than the liquid passage port 14 and has a circular opening.

[0033] Therefore, when the cap body 7 is attached to the mouth neck portion 2c of the container body 2, it blocks the upper opening 2d of the container body 2 and is connected to the inside of the container body 2 via the liquid passage hole 14 and the air passage hole 15 formed in the mouth forming member 11.

[0034] The port forming member 11 is detachably attached to the periphery of the opening 10b of the outer tube member 10 via a port attachment / detachment mechanism 16.

[0035] The mouth attachment / detachment mechanism 16 has a first engaged portion 17 provided on the front side of the opening 10b of the cap body 7 (outer tube member 10), a first engaged portion 18 provided on the front side of the mouth-forming member 11, a second engaged portion 19 provided on the rear side of the mouth-forming member 11, a engaging member 20 attached to the rear side of the cap body 7 across the opening 10b so as to be able to slide freely in the front-to-rear direction, a second engaged portion 21 provided on the engaging member 20, and a biasing member 22 that biases the engaging member 20 forward.

[0036] In the mouth attachment / detachment mechanism 16, the upper mouth forming portion 11a of the mouth forming member 11 is fitted from below into the inside of the opening 10b of the outer tube member 10 (cap body 7), while the first engaging portion 18 is engaged with the first engaged portion 17, and the second engaging portion 19 is engaged with the second engaged portion 21.

[0037] Specifically, as the second locking portion 19 is lifted from the lower side to the upper side, the locking member 20 is pushed backward against the bias of the biasing member 22. Thereafter, the locking member 20 slides forward due to the bias of the biasing member 22, so that the second locking portion 19 is locked to the second locked portion 21.

[0038] This makes it possible to attach the opening-forming member 11 to the periphery of the opening 10b of the outer cylinder member 10 (cap body 7).

[0039] On the other hand, in the mouth attachment / detachment mechanism 16, the engagement state of the second engagement portion 19 with the second engaged portion 21 is released by sliding the engagement member 20 backward against the bias of the biasing member 22.

[0040] This makes it possible to remove the opening forming member 11 from the opening 10b of the outer tube member 10 (cap body 7) while releasing the locked state of the first locked portion 18 with respect to the first locked portion 17.

[0041] In this embodiment, a spring member such as a coil spring is used as the biasing member 22, but an elastic member such as rubber or elastomer may also be used.

[0042] Further, at the front end of the locking member 20, an operating protrusion 20a is provided so as to protrude upward, so as to facilitate sliding the locking member 20 with a finger.

[0043] Furthermore, the mouth attachment / detachment mechanism 16 is not necessarily limited to the configuration described above, but may be configured to freely attach and detach the mouth forming member 11 around the opening 10b of the outer tube member 10 (cap body 7), and the configuration can be modified as appropriate.

[0044] The cap body 7 is attached to the mouth neck portion 2c of the container body 2, thereby closing the upper opening 2d of the container body 2 with the lower mouth forming portion 11b of the mouth forming member 11 fitted inside the container body 2 from the upper opening 2d.

[0045] A watertight gasket 23 is detachably attached to the outer periphery of the lower end side of the lower port forming portion 11b (port forming member 11).

[0046] The waterproof gasket 23 is a ring-shaped sealing member for sealing the space between the protrusion 6 (container body 2) and the mouth-forming member 11 (cap body 7), and is made of an elastic material such as a heat-resistant rubber such as silicone rubber or an elastomer.

[0047] The watertight gasket 23 is fitted onto the outer periphery of a lower flange portion 11d provided on the outer periphery of the lower end side of the lower port forming portion 11b (port forming member 11).

[0048] When the lower mouth forming portion 11b (mouth forming member 11) is fitted inside the container body 2, the watertight gasket 23 comes into close contact with the overhanging portion 6 over the entire periphery while being elastically deformed.

[0049] This makes it possible to seal the gap between the protruding portion 6 (container body 2) and the mouth-forming member 11 (cap body 7) via the waterproof packing .

[0050] On the other hand, the watertight gasket 23 can be removed from the lower flange portion 11d (the opening forming member 11) by elastically deforming (pulling and stretching) the watertight gasket 23 itself.

[0051] This allows the watertight gasket 23 and the port-forming member 11 to be washed separately, and the space between the watertight gasket 23 and the port-forming member 11 can be kept hygienic.

[0052] The watertight gasket 23 may be attached detachably to the opening forming member 11 (cap body 7), or may be attached in an inseparable manner by integral molding or the like.

[0053] The lid body 9 is made of, for example, a heat-resistant resin, and has a peripheral wall portion 9a formed in an approximately cylindrical shape so as to be continuous with the peripheral wall portion 10a of the outer tube member 10 (the outer peripheral surface of the cap body 7), and a top wall portion 9b covering the top surface of the peripheral wall portion 9a.

[0054] A plug 24 that is fitted into the inside of the opening-forming member 11 is attached to the inside of the lid 9 via a plug attachment / detachment mechanism 25 in a freely attachable and detachable manner.

[0055] The plug 24 is made of, for example, a heat-resistant resin, and has a first cylindrical portion 24a provided corresponding to the liquid passage port 14 and a second cylindrical portion 24b provided corresponding to the air vent port 15.

[0056] A plug packing 26 is detachably attached to the plug body 24. The plug packing 26 is a plug-shaped sealing member for sealing the gap between the mouth forming member 11 (cap body 7) and the plug body 24 (lid body 9). The plug packing 26 is made of an elastic member, and the same material as the watertight packing 23 can be used for this elastic member.

[0057] The plug packing 26 may be attached to the plug body 24 in a detachable manner, or may be attached in an inseparable manner by integral molding or the like.

[0058] The plug gasket 26 has a first plug portion 26a having a substantially dome shape for closing the liquid passage hole 14, and a second plug portion 26b having a substantially dome shape for closing the air passage hole 15.

[0059] The plug gasket 26 is attached to the lower surface of the plug body 24 by fitting the first tubular portion 24a inside the first plug portion 26a and fitting the second tubular portion 24b inside the second plug portion 26b.

[0060] In the cap unit 1A of this embodiment, when the stopper body 24 is fitted inside the opening forming member 11, the first stopper portion 26a of the stopper gasket 26 elastically deforms and closes against the periphery of the liquid passage opening 14, thereby blocking the liquid passage opening 14, and the second stopper portion 26b elastically deforms and closes against the periphery of the air vent opening 15, thereby blocking the air vent opening 15.

[0061] This makes it possible to seal the gap between the opening-forming member 11 (cap body 7) and the plug body 24 (lid body 9) via the plug packing .

[0062] On the other hand, the plug gasket 26 can be removed from the plug body 24 (lid body 9) and washed separately from the plug body 24 (lid body 9), so that the space between the plug gasket 26 and the plug body 24 (lid body 9) can be kept hygienic.

[0063] The plug attachment / detachment mechanism 25 has a structure in which the plug body 24 is attached to the lid body 9 by sliding the plug body 24 from a state in which the plug body 24 is abutted against the underside of the top wall portion 9b (the inner top surface of the lid body 9) toward the hinge portion 8 (rear side) of the lid body 9.

[0064] Specifically, as shown in Figures 3 to 6, the plug attachment / detachment mechanism 25 has a first guide portion 27 provided on the front side of the underside of the top wall portion 9b, a second guide portion 28 provided on the rear side of the underside of the top wall portion 9b, a first slide engagement portion 29 including a first locking portion 29a provided on the first guide portion 27 and a second locking portion 29b provided on the front side of the plug body 24, a second slide engagement portion 30 including a third locking portion 30a provided on the second guide portion 28 and a fourth locking portion 30b provided on the rear side of the plug body 24, and a third slide engagement portion 31 including a fifth locking portion 31a provided on the hinge portion 8 side of the cover body 9 and a sixth locking portion 31b provided on the hinge portion 8 side of the plug body 24.

[0065] The first guide portion 27 is located inside the plug body 24 abutted against the underside of the top wall portion 9b and is intended to guide the plug body 24 in the front-to-rear direction of the lid body 9, and is arranged to protrude from the front side of the underside of the top wall portion 9b in accordance with the inner shape of the front side of the plug body 24.

[0066] Specifically, in this embodiment, the first guide portion 27 is configured by a pair of wall portions 27a arranged parallel to each other in the front-rear direction, and a wall portion 27b that connects the front sides of the pair of wall portions 27a while curving.

[0067] The second guide portion 28 is located outside the plug body 24 abutted against the underside of the top wall portion 9b and is intended to guide the plug body 24 in the front-to-rear direction of the lid body 9, and is provided protruding from the rear side of the underside of the top wall portion 9b in correspondence with the outer shape of the rear side of the plug body 24.

[0068] Specifically, in this embodiment, the second guide portion 28 is configured by a pair of wall portions 28a that are parallel to each other in the front-rear direction.

[0069] In the plug attachment / detachment mechanism 25, the plug body 24 is abutted against the underside of the top wall portion 9b so that the first guide portion 27 is positioned inside the plug body 24, and then the plug body 24 can be slid toward the hinge portion 8 of the lid body 9, guided by a pair of wall portions 27a (first guide portion 27) on the inside of the plug body 24 and a pair of wall portions 28a (second guide portion 28) on the outside of the plug body 24.

[0070] The first sliding locking portion 29 has a structure in which the first locking portion 29a and the second locking portion 29b are locked to each other in the vertical direction of the cover body 9 when the plug body 24 is slid toward the hinge portion 8 from a state in which the plug body 24 is abutted against the underside of the top wall portion 9b until the inner front end portion 24e of the plug body 24 abuts against the wall portion 27b.

[0071] Specifically, in this embodiment, the first locking portion 29a is configured by a pair of protrusions protruding outward from a pair of walls 27a of the first guide portion 27.

[0072] On the other hand, the second locking portion 29b is composed of a pair of projections that protrude inward from the surface of the plug 24 that faces the pair of walls 27a.

[0073] In the first sliding locking portion 29, when the plug 24 abutting against the underside of the top wall portion 9b is slid toward the hinge portion 8 of the lid 9, a pair of protrusions of the first locking portion 29a and a pair of protrusions of the second locking portion 29b come into contact with each other. This causes the first locking portion 29a and the second locking portion 29b to be locked to each other in the up-down direction of the lid 9.

[0074] In addition, in the first slide locking portion 29, a pair of protrusions of the second locking portion 29b abut against a pair of wall portions 27a of the lid body 9, eliminating any wobble in the left-right direction of the plug body 24 when attached to the lid body 9, and the pair of wall portions 27a (first guide portion 27) and the second locking portion 29b are locked to each other in the left-right direction of the lid body 9.

[0075] The second sliding locking portion 30 has a structure in which the third locking portion 30a and the fourth locking portion 30b are locked to each other in the front-to-rear direction of the cover body 9 when the plug body 24 is slid toward the hinge portion 8 from a state in which the plug body 24 is abutted against the underside of the top wall portion 9b until the inner front end portion 24e of the plug body 24 abuts against the wall portion 27b.

[0076] Specifically, in this embodiment, the third locking portion 30a is configured by a wall portion obtained by bending the front tip sides of the pair of wall portions 28a of the second guide portion 28 inward.

[0077] On the other hand, the fourth engagement portion 30b is composed of a protrusion protruding outward from the rear tip side of a pair of elastic pieces (elastic displacement portions) located on the side opposite to the pair of wall portions 28a of the plug body 24.

[0078] In the second sliding engagement portion 30, when the stopper body 24 abutting against the underside of the top wall portion 9b is slid toward the hinge portion 8 of the cover body 9 until the inner front end portion 24e of the stopper body 24 abuts against the wall portion 27b, a pair of elastic pieces facing the pair of wall portions 28a are elastically deformed inward, and the protrusions of the fourth engagement portion 30b on the tip side of each elastic piece overcome the wall portions of the third engagement portion 30a, giving a clicking sensation.

[0079] Furthermore, after the protrusion of the fourth locking portion 30b overcomes the wall portion of the third locking portion 30a, the inner front end portion 24e of the plug body 24 abuts against the wall portion 27b and each elastic piece elastically returns to its original position, so that the third locking portion 30a and the fourth locking portion 30b are locked to each other in the front-to-rear direction of the lid body 9.

[0080] The third sliding locking portion 31 has a structure in which the fifth locking portion 31a and the sixth locking portion 31b are locked to each other in the vertical and horizontal directions of the cover body 9 when the plug body 24 is slid toward the hinge portion 8 from a state in which the plug body 24 is abutted against the underside of the top wall portion 9b until the inner front end portion 24e of the plug body 24 abuts against the wall portion 27b.

[0081] Specifically, in this embodiment, the fifth locking portion 31a is configured by a pair of recesses provided on both sides of the hinge portion 8 of the cover 9.

[0082] On the other hand, the sixth locking portion 31b is composed of a pair of protrusions protruding outward from the rear end side of the plug 24.

[0083] In the third sliding locking portion 31, when the plug 24 abutting against the underside of the top wall 9b is slid toward the hinge portion 8 of the lid 9, a pair of protrusions of the sixth locking portion 31b are fitted inside a pair of recesses of the fifth locking portion 31a. This causes the fifth locking portion 31a and the sixth locking portion 31b to be locked to each other in the vertical and horizontal directions of the lid 9.

[0084] In the plug attachment / detachment mechanism 25 of this embodiment, the plug 24 can be detachably attached to the inside of the lid 9 by the first, second and third slide locking portions 29, 30, 31 described above.

[0085] In addition, the first, second and third sliding engagement portions 29, 30 and 31 engage the plug body 24 with the lid body 9 in the vertical, front-to-back and left-to-right directions, so that there is no misalignment and the plug gasket 26 blocks the liquid passage hole 14 and the air passage hole 15.

[0086] The plug attaching / detaching mechanism 25 is not necessarily limited to the configuration of the first, second and third slide engaging portions 29, 30 and 31 described above, and the configuration can be modified as appropriate.

[0087] In the cap unit 1A of this embodiment, when the plug 24 is attached to the lid 9, the plug 24 forms a part of the hinge portion 8. On the other hand, when the plug 24 is removed from the lid 9, the lid 9 can be removed from the cap body 7.

[0088] Specifically, the hinge portion 8 in this embodiment has a pair of hinge shafts 10d provided on the outer tube member 10 (cap body 7), a pair of bearing recesses 9c provided on the lid body 9, and a pair of bearing protrusions 24c provided on the plug body 24.

[0089] The pair of hinge shafts 10d are located on the rear side of the upper surface of the upper wall portion 10c (outer cylinder member 10) and protrude outward in the left-right direction in opposite directions.

[0090] The pair of hinge shafts 10d are configured to be integrally formed with the outer tube member 10, but may be configured as separate members. For example, it is possible to provide a hinge bearing portion penetrating in the left-right direction on the rear side of the outer tube member 10, and to have the hinge shafts penetrate this hinge bearing portion and protrude in the left-right direction. The hinge shafts can also serve as hook receivers 10e, which will be described later.

[0091] The pair of bearing recesses 9c are located on the inside of the corner between the peripheral wall portion 9a and the top wall portion 9b on the rear side of the cover 9, and are provided corresponding to the pair of hinge shafts 10d.

[0092] With the plug 24 attached to the lid 9, the pair of bearing protrusions 24c are located on both the left and right sides of the rear end of the plug 24 and protrude rearward in a generally L-shaped cross section. That is, the pair of bearing protrusions 24c of the plug 24 form part of the hinge portion 8.

[0093] In the hinge portion 8, the pair of hinge shafts 10d are fitted inside the pair of bearing recesses 9c, and the pair of bearing protrusions 24c are positioned to face the pair of bearing recesses 9c across the pair of hinge shafts 10d. In other words, the pair of bearing protrusions 24c support the lid body 9 rotatably relative to the cap body 7 in a state in which they are in contact with the pair of hinge shafts 10d.

[0094] Meanwhile, in the hinge portion 8, when the plug 24 is removed from the lid 9, the pair of bearing protrusions 24c are released from the pair of hinge shafts 10d. As a result, as shown in Fig. 6, when the lid 9 is in a position partially opened from the closed position, the lid 9 can be slid backward (in the direction of the arrow shown in Fig. 6) so as to remove the pair of hinge shafts 10d from inside the pair of bearing recesses 9c, thereby making it possible to remove the lid 9 from the cap body 7.

[0095] The hinge portion 8 may be provided with a biasing member that biases the cover body 9 toward one side of the rotation direction in which the liquid passage port 14 and the air passage port 15 are opened (hereinafter, referred to as the "opening direction").

[0096] The biasing member may be a spring member such as a torsion spring, or a ring-shaped elastic member made of rubber, elastomer, or the like that is hooked between the cap body 7 and the lid body 9 to bias the lid body 9 in the opening direction.

[0097] As shown in Figures 3 to 5, the cap unit 1A of this embodiment is equipped with an anti-rotation mechanism 32 that prevents the lid body 9 from being rotated toward the other side of the rotation direction (hereinafter referred to as the "closing direction") when the lid body 9 is rotated in the open direction (hereinafter referred to as the "open position").

[0098] As shown in FIG. 1, the anti-rotation mechanism 32 has a hook receiving portion 10e provided on the hinge portion 8 side of the outer tube member 10 (cap body 7) and a hook portion 9d provided on the hinge portion 8 side of the lid body 9.

[0099] The hook receiving portion 10e has a shape in which an upper end of a standing wall formed between the pair of hinge shafts 10d protrudes rearward.

[0100] The hook portion 9d extends obliquely rearward and downward from the center of a cutout portion formed between the pair of bearing recesses 9c, and has a tip that protrudes rearward.

[0101] In the anti-rotation mechanism 32, the hook portion 9d is engaged with the hook receiving portion 10e when in the above-mentioned open position.

[0102] As a result, in the capped container 100 of this embodiment, when the container body 2 is tilted forward and the beverage inside the container body 2 is allowed to flow out through the liquid passage 14, it is possible to stably maintain the open state of the lid body 9 while preventing the lid body 9 from rotating in the closing direction due to its own weight.

[0103] The anti-rotation mechanism 32 is not necessarily limited to the configuration of the hook receiving portion 10e and the hook portion 9d described above, and the configuration can be modified as appropriate.

[0104] As shown in Figures 1 and 2, the cap unit 1A of this embodiment is equipped with a lid locking mechanism 33 that fixes the lid body 9 to the cap body 7 when the lid body 9 is in a position where it closes the upper part of the cap body 7 (hereinafter referred to as the "closing position").

[0105] The lid locking mechanism 33 has a locking member 34 that is rotatably attached to the front side of the lid body 9 via a hinge portion 34a, and a stopper 35 that is positioned inside the locking member 34 except for the upper part and is attached so as to be slidable in the vertical direction.

[0106] The locking member 34 is provided extending from the upper hinge portion 34a toward the lower cap body 7. The locking member 34 is disposed along the peripheral walls 9a, 10a of the lid body 9 and the outer tube member 10, and the lower end side of the locking member 34 can be slightly rotated in a direction away from the peripheral walls 9a, 10a.

[0107] When the lower end side of the locking member 34 is rotated in a direction away from the peripheral walls 9a, 10a, the elasticity of the locking member 34 urges it in a direction approaching the peripheral walls 9a, 10a.

[0108] Further, on both left and right ends of the surface of the locking member 34 facing the outer tube member 10 (cap body 7), there are provided a locking recess 34b recessed downward and a locking wall 34c rising from the inside so as to form the locking recess 34b. On the other hand, on the surface of the outer tube member 10 (cap body 7) facing the locking wall 34c, there is provided a locking protrusion 10f protruding forward and locked by the locking wall 34c.

[0109] The stopper 35 is provided so as to be slidable up and down along a guide groove 34d and an engagement wall 34c provided on the inside of the locking member 34. In addition, an operation protrusion 35a is provided on the upper end of the stopper 35, facing the outside through an opening 34e provided in the locking member 34, to make it easier to slide the stopper 35 with a finger.

[0110] A hook portion 35b is provided protruding rearward at the center of the surface of the stopper 35 facing the outer tube member 10 (cap body 7). On the other hand, a stopper protrusion 10g that is engaged with the hook portion 35b is provided protruding forward on the surface of the outer tube member 10 (cap body 7) facing the hook portion 35b.

[0111] Further, slide walls 35c are provided to protrude downward from both ends of the stopper 35. The slide walls 35c are provided at positions facing the upper part of the lock recess 34b of the lock member 34.

[0112] A biasing member 37 made of a spring member such as a coil spring is disposed between the cover 9 and the stopper 35. The stopper 35 can be slid downward against the bias of the biasing member 37.

[0113] Incidentally, for the biasing member 37, an elastic member such as rubber or elastomer may be used instead of the above-mentioned spring member.

[0114] In the lid locking mechanism 33, when the lid body 9 closes the upper part of the cap body 7, the locking protrusion 10f engages with the locking wall 34c of the locking member 34, thereby making it possible to fix the lid body 9 to the cap body 7 in the closed position.

[0115] On the other hand, by rotating the lower end side of the locking member 34 from this state in a direction away from the peripheral wall portions 9a, 10a, the engagement between the locking wall 34c and the locking protrusion 10f can be released, and the lid body 9 can be rotated in the opening direction.

[0116] In the lid lock mechanism 33, with the lock protrusion 10f locked to the lock wall 34c of the lock member 34, the hook portion 35b is locked to the stopper protrusion 10g by sliding the stopper 35 downward against the bias of the biasing member 37. Furthermore, the slide wall portion 35c is inserted from above into the lock recess 34b of the lock member 34 and locked.

[0117] As a result, the rotation of the lower end side of the locking member is prevented by the stopper 35. Therefore, the lid locking mechanism 33 can prevent the lid 9 from being opened due to unnecessary operation of the locking member .

[0118] The lid locking mechanism 33 is not necessarily limited to the configuration described above, but may be configured to fix the lid body 9 to the cap body 7 in the closed position, and the configuration can be modified as appropriate.

[0119] In the cap unit 1A of this embodiment having the above-mentioned configuration, when the stopper body 24 is attached to the lid body 9 described above, the stopper body 24 forms part of the hinge portion 8, and when the stopper body 24 is removed from the lid body 9, the lid body 9 can be removed from the cap body 7.

[0120] As a result, in the cap unit 1A of the present embodiment, the cap body 7, the lid body 9, and the plug body 24 are each structured to be separable, which makes it possible to improve the washability of each.

[0121] Furthermore, in the cap unit 1A of this embodiment, the above-mentioned cap body 7, lid body 9, and stopper body 24 are structured so that they can be separated at the hinge portion 8. This means that when cleaning the cap unit 1A, residual water does not accumulate between the lid body 9 and the stopper body 24 or in the hinge portion 8, making it difficult to dry the hinge portion 8. Since the hinge portion 8 can be easily drained and dried, it is possible to keep the hinge portion 8 hygienic.

[0122] Therefore, by providing the capped container 100 of this embodiment with such a cap unit 1A, it is possible to further improve usability.

[0123] Second Embodiment Next, as a second embodiment of the present invention, a cap unit 1B shown in, for example, FIGS. 8 to 14 will be described.

[0124] FIG. 8 is a perspective view showing the configuration of the cap unit 1B in the open position in the capped container 100 having the cap unit 1B. FIG. 9 is a perspective view showing a state before the plug 24 is attached to the lid 9 of the cap unit 1B. FIG. 10 is a perspective view showing a state in which the plug 24 is removed from the lid 9 of the cap unit 1B. FIG. 11 is a cross-sectional view taken along the line AA in FIG. 8 in a state in which the rotation of the lid 9 in the closing direction is prevented by the rotation prevention mechanism 32 of the cap unit 1B. FIG. 12 is a cross-sectional view taken along the line BB in FIG. 8 in a state in which the rotation of the lid 9 in the closing direction is prevented by the rotation prevention mechanism 32 of the cap unit 1B. FIG. 13 is a cross-sectional view taken along the line AA in FIG. 8 in a state before the rotation of the lid 9 in the closing direction is prevented by the rotation prevention mechanism 32 of the cap unit 1B. FIG. 14 is a cross-sectional view taken along the line BB in FIG. 8 in a state before the rotation of the lid 9 in the closing direction is prevented by the rotation prevention mechanism 32 of the cap unit 1B. In the following description, the same parts as those in the above-mentioned cap unit 1A will not be described and will be denoted by the same reference numerals in the drawings.

[0125] As shown in Figures 8 to 10, the cap unit 1B of this embodiment has basically the same configuration as the cap unit 1A, except that the configurations of the hinge portion 8, the anti-rotation mechanism 32 and the plug attachment / detachment mechanism 25 are changed from those of the cap unit 1A.

[0126] Specifically, the plug attachment / detachment mechanism 25 of this embodiment omits the above-mentioned second guide portion 28, and in the second slide engagement portion 30, has a third engagement portion 30c provided on the rear side of the underside of the top wall portion 9b, and a fourth engagement portion 30d provided on the rear side of the plug body 24.

[0127] Furthermore, in the plug attaching / detaching mechanism 25 of this embodiment, the third slide engaging portion 31 has a structure in which the elastically deformable portion also functions as the sixth engaging portion 31c, instead of the sixth engaging portion 31b described above.

[0128] The third locking portion 30c is located outside the plug 24 that is in contact with the lower surface of the top wall portion 9b, and is composed of a pair of projections that protrude from the lower surface of the top wall portion 9b.

[0129] The fourth locking portion 30d is configured by a protrusion that protrudes outward from the middle of a pair of elastically deformable portions located on the side of the plug 24 opposite the pair of third locking portions 30c.

[0130] In the second sliding engagement portion 30, when the plug 24 abutting against the underside of the top wall portion 9b is slid toward the hinge portion 8 of the cover body 9, a pair of elastic displacement portions facing the third engagement portion 30c are elastically deformed inward, and the protrusion of the fourth engagement portion 30d located in the middle of each elastic displacement portion overcomes the protrusion of the third engagement portion 30c, providing a clicking sensation.

[0131] Furthermore, after the protrusion of the fourth locking portion 30d overcomes the protrusion of the third locking portion 30c, each elastic displacement portion elastically returns to its original position, so that the third locking portion 30c and the fourth locking portion 30d are locked to each other in the front-to-rear direction of the cover body 9.

[0132] The sixth locking portion 31c corresponds to the fifth locking portion 31a and is composed of a pair of protrusions protruding outward from the rear end side of a pair of elastically deformable portions that face the third locking portion 30c in the plug 24. The sixth locking portion 31c is bent forward in a substantially L-shape from the outward protruding position, thereby forming a shape that is strong against forces in the front-rear direction.

[0133] In the third sliding locking portion 31, when the plug 24 abutting against the underside of the top wall 9b is slid toward the hinge portion 8 of the lid 9, a pair of protrusions of the sixth locking portion 31c are fitted into the inside of a pair of recesses of the fifth locking portion 31a. This causes the fifth locking portion 31a and the sixth locking portion 31c to be locked to each other in the vertical and horizontal directions of the lid 9.

[0134] The hinge portion 8 in this embodiment has a hinge bearing portion 10h provided on the outer tube member 10 (cap body 7), a hinge shaft 8a provided so as to penetrate the hinge bearing portion 10h, a pair of bearing recesses 9e provided on the cover body 9, and a pair of bearing protrusions 24d provided on the plug body 24.

[0135] The hinge portion 8 is positioned such that both ends of the hinge shaft 8a sandwiching the hinge bearing portion 10h are fitted inside the pair of bearing recesses 9e, and the pair of bearing protrusions 24d face the pair of bearing recesses 9e across the hinge shaft 8a. That is, the pair of bearing protrusions 24d support the lid body 9 rotatably relative to the cap body 7 in a state in which they are in contact with both ends of the hinge shaft 8a.

[0136] Meanwhile, in the hinge portion 8, with the plug 24 removed from the lid 9, the pair of bearing protrusions 24d are released from the both ends of the hinge shaft 8a. This makes it possible to remove the lid 9 from the cap body 7 while pulling out both ends of the hinge shaft 8a from inside the pair of bearing recesses 9e.

[0137] The anti-rotation mechanism 32 of this embodiment is configured by extending a pair of bearing recesses 9e constituting the hinge portion 8 in the depth direction, so that both ends of the hinge shaft 8a have a gap inside the pair of bearing recesses 9e that allows them to move in the depth direction.

[0138] The anti-rotation mechanism 32 has a hook receiving portion 10i provided on the hinge portion 8 side of the outer tube member 10 (cap body 7) and a hook portion 9f provided on the hinge portion 8 side of the lid body 9.

[0139] The hook receiving portion 10i has a shape that protrudes obliquely downward and rearward from the rear surface side of the hinge bearing portion 10h.

[0140] The hook portion 9f is configured by a cutout portion formed between the pair of bearing recesses 9e.

[0141] The rear end of the upper wall portion 10c of the outer tube member 10 (cap body 7) has an inclined surface 10j that slopes downward and rearward as shown in Figures 11 to 14. When the lid body 9 is in the open position in the upright state, the lid body 9 rotates to a position where the rear of the top wall portion 9b abuts against this inclined surface 10j.

[0142] In the anti-rotation mechanism 32 of this embodiment, as shown in Figures 11 and 12, when the capped container 100 (container body 2) is tilted forward with the lid body 9 in the open position, the lid body 9 moves toward the hinge portion 8.

[0143] This is because the lid 9 can move in the depth direction inside the pair of bearing recesses 9e at both ends of the hinge shaft 8a, and therefore when the capped container 100 is tilted forward, the lid 9 moves diagonally downward and forward (in the direction of the arrow shown in FIG. 11) due to its own weight, and both ends of the hinge shaft 8a inside the pair of bearing recesses 9e come into contact with the pair of bearing protrusions 24d. As a result, the hook portion 9f is locked to the hook receiving portion 10i.

[0144] As a result, in a capped container 100 equipped with the cap unit 1B of this embodiment, when the capped container 100 (container body 2) is tilted forward to allow the beverage in the container body 2 to flow out through the liquid passage 14, it is possible to stably maintain the open state of the lid body 9 while preventing the lid body 9 from rotating in the closing direction due to its own weight.

[0145] On the other hand, in the anti-rotation mechanism 32 of this embodiment, as shown in Figures 13 and 14, when the container body 2 is uprighted with the lid body 9 in the open position, the lid body 9 moves diagonally downward and rearward (in the direction of the arrow shown in Figure 13) along the inclined surface 10j of the outer tube member 10 (cap body 7) due to its own weight.

[0146] At this time, as the cover 9 moves toward the side opposite to the hinge portion 8, both ends of the hinge shaft 8a inside the pair of bearing recesses 9e come into contact with the ends of the pair of bearing recesses 9e in the depth direction. As a result, the hook portion 9f is released from the hook receiving portion 10i.

[0147] Therefore, in a capped container 100 equipped with the cap unit 1B of this embodiment, when the container body 2 is in an upright position, the lid body 9 can be rotated relative to the cap body 7 between an open position and a closed position.

[0148] In the cap unit 1B of this embodiment having the above-mentioned configuration, similarly to the cap unit 1A described above, when the stopper body 24 is attached to the lid body 9, the stopper body 24 forms part of the hinge portion 8, and when the stopper body 24 is removed from the lid body 9, the lid body 9 can be removed from the cap body 7.

[0149] As a result, in the cap unit 1B of the present embodiment, the cap body 7, the lid body 9, and the plug body 24 are each structured to be separable, which makes it possible to improve the washability of each.

[0150] Furthermore, in the cap unit 1B of this embodiment, the cap body 7, the lid body 9, and the stopper body 24 are structured so that they can be separated at the hinge portion 8. This means that when cleaning the cap unit 1B, residual water does not accumulate between the lid body 9 and the stopper body 24 or in the hinge portion 8, making it difficult to dry the hinge portion 8. Since the hinge portion 8 can be easily drained and dried, it is possible to keep the hinge portion 8 hygienic.

[0151] In addition, in the cap unit 1B of this embodiment, when the stopper body 24 is removed, the lid body 9 can be removed from the cap body 7 by sliding the lid body 9 backward from a position slightly open from the closed position.

[0152] Here, the cap body 7 is provided with an inclined surface 10j, so that the lid body 9 can be removed not only by sliding it backward, but also by sliding it diagonally downward backward, which is easy and convenient to operate.

[0153] Therefore, the capped container 100 including such a cap unit 1B can be made even easier to use.

[0154] (Third embodiment) Next, as a third embodiment of the present invention, a cap unit 1C shown in, for example, FIGS. 15 to 18 will be described.

[0155] FIG. 15 is a perspective view showing the configuration of the cap unit 1C in the open position in a capped container 100 equipped with the cap unit 1C. FIG. 16 is a perspective view showing the state before the plug 24 is attached to the lid 9 of the cap unit 1C. FIG. 17 is a perspective view showing the state after the plug 24 has been removed from the lid 9 of the cap unit 1C. FIG. 18 shows the configuration of the plug 24 of the cap unit 1C, (A) being a perspective view seen from above, and (B) being a perspective view seen from below. In the following description, the same parts as those of the cap unit 1B will not be described and will be given the same reference numerals in the drawings.

[0156] As shown in Figures 15 to 18, the cap unit 1C of this embodiment has basically the same configuration as the cap unit 1B described above, except that the configuration of the second sliding engagement portion 30 of the plug attachment / detachment mechanism 25 is changed.

[0157] Specifically, in the plug attachment / detachment mechanism 25 of this embodiment, the second slide engagement portion 30 has a third engagement portion 30e provided on the rear side of the underside of the top wall portion 9b, and a fourth engagement portion 30f provided on the rear side of the plug body 24.

[0158] The third engagement portion 30e is composed of a pair of protrusions protruding from the lower surface (upper side in Figure 17) of the top wall portion 9b, and is located opposite the elastic deformation portion of the plug body 24 abutting against the lower surface of the top wall portion 9b.

[0159] The fourth locking portion 30f is formed by a protrusion protruding from the middle of a pair of elastic displacement portions of the plug body 24 toward the lower surface of the top wall portion 9b (the lower side in Figures 15 and 16), and is located on the surface opposite the third locking portion 30e.

[0160] In the second sliding engagement portion 30, when the plug 24 abutting against the underside of the top wall portion 9b is slid toward the hinge portion 8 of the cover body 9, a clicking sensation is imparted by the protrusion in the middle of the elastic displacement portion climbing over the protrusion of the third engagement portion 30e while elastically deforming a pair of elastic displacement portions of the fourth engagement portion 30f.

[0161] In addition, after the protrusion of the fourth locking portion 30f overcomes the protrusion of the third locking portion 30e, each elastic displacement portion elastically returns to its original position, so that the third locking portion 30e and the fourth locking portion 30f are locked to each other in the front-to-rear direction of the cover body 9.

[0162] In the cap unit 1C of this embodiment having the above-mentioned configuration, similarly to the cap unit 1A described above, when the stopper body 24 is attached to the lid body 9, the stopper body 24 forms part of the hinge portion 8, and when the stopper body 24 is removed from the lid body 9, the lid body 9 can be removed from the cap body 7.

[0163] As a result, in the cap unit 1C of the present embodiment, the cap body 7, the lid body 9, and the plug body 24 are each structured to be separable, which makes it possible to improve the washability of each.

[0164] Furthermore, in the cap unit 1C of this embodiment, the cap body 7, the lid body 9, and the stopper body 24 are designed to be separable at the hinge portion 8, so that when cleaning this cap unit 1C, the hinge portion 8 does not become difficult to dry due to residual water remaining between the lid body 9 and the stopper body 24 or in the hinge portion 8, and since the hinge portion 8 can be easily drained and dried, it is possible to keep the hinge portion 8 hygienic.

[0165] Therefore, the capped container 100 including such a cap unit 1C can be made even easier to use.

[0166] The present invention is not necessarily limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0167] For example, the above embodiment illustrates the application of the present invention to a beverage container having a heat / cold insulation function provided by the container body 2 having the above-mentioned vacuum insulation structure, but the present invention can be widely applied to a capped container having a container body and a cap unit that can be freely attached and detached to the container body. [Explanation of symbols]

[0168] DESCRIPTION OF SYMBOLS 1A, 1B, 1C... Cap unit 2... Container body 7... Cap body 8... Hinge portion 9... Lid body 10... Outer cylinder member 11... Mouth forming member 14... Liquid passage port 15... Vent port 16... Mouth attachment / detachment mechanism 23... Water stop gasket 24... Plug body 25... Plug attachment / detachment mechanism 26... Plug gasket 27... First guide portion 28... Second guide portion 29... First slide engagement portion 30... Second slide engagement portion 31... Third slide engagement portion 32... Anti-rotation mechanism 33... Lid lock mechanism 100... Container with cap

Claims

1. A cap unit that can be detachably attached to a container body having an open top, a cap body that closes an upper opening of the container body and has a liquid passage hole that communicates with the inside of the container body; a lid body rotatably attached to the cap body via a hinge portion; A plug body removably attached to the inside of the lid body; a plug packing that opens and closes the liquid passage port by rotation of the lid body when attached to the plug body, When the plug is attached to the lid, the plug constitutes a part of the hinge portion, A cap unit, characterized in that, in a state in which the plug body is removed from the lid body, the lid body is removable from the cap body.

2. a detachment mechanism for detachably attaching the plug to the lid, The cap unit according to claim 1, characterized in that the attachment / detachment mechanism has a structure in which the plug is attached to the lid body by sliding the plug body toward the hinge portion from a state in which the plug body is abutted against the inner top surface of the lid body.

3. 3. The cap unit according to claim 2, wherein the attachment / detachment mechanism has a structure for engaging the plug with the lid in front-back, up-down and left-right directions.

4. The cap unit according to claim 1, characterized in that it is provided with an anti-rotation mechanism that prevents the lid body from being rotated toward the other side in the rotation direction when the lid body is rotated toward one side in the rotation direction to open the liquid passage port.

5. A cap unit according to any one of claims 1 to 4, A capped container comprising: a container body to which the cap unit is attached.

Images