cap

Abstract

To provide a cap which can be used both in a case where packing is disposed at a mouth of a container and in a case where packing is not disposed at the mouth of the container.SOLUTION: A cap has a cap body 4 mounted on a mouth 3 of a container 2, an inner plug 7 corresponding to a mouth opening 31, and an upper lid 6 which is integrated with the cap body 4 via a hinge 5 and swings via the hinge between a cap opening position and a cap closing position. The inner plug 7 has a discharge part 72 surrounding an inner plug opening 71, a plug body 74 which closes the inner plug opening 71 and is integrated with the discharge part 72 via a score 75, and an inner seal part 73 which surrounds the mouth opening 31 of the container 2 and can be brought into contact with an inner peripheral surface of the mouth 3. The cap body 4 has an outer seal part 45 which surrounds the mouth opening 31 of the container 2 and can be brought into contact with an opening edge end surface 32.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a technology for a cap in which a lid body is integral with a cap body via a hinge. [Background technology]

[0002] A conventional cap of this type is described in Patent Document 1. This cap is attached to the mouth of a container body that contains the contents, and includes a cap body having a first discharge port formed therein for discharging the contents, a closing plate that closes the first discharge port, an operating piece connected to the closing plate, and an extractor part that is formed integrally with the cap body.

[0003] The closure plate comprises a main material layer formed of a first synthetic resin, and an intermediate layer that is arranged so as to be embedded in the main material layer, and that is formed of a second synthetic resin different from the first synthetic resin and is peelable from the main material layer.

[0004] The portion of the main material layer located outside the container body is the upper main material layer connected to the operating lever, and the portion of the main material layer located inside the container body is the lower main material layer. The middle layer and lower main material layer block the first discharge port, and the upper main material layer is arranged inside the first discharge port via a breakable weakened part and can be detached from inside the first discharge port together with the operating lever. The middle layer and lower main material layer have a second discharge port that communicates with the inside of the container body and is blocked by the upper main material layer.

[0005] The inner lid for a container in Patent Document 2 has a perforated membrane and a ring for pulling on the perforated membrane integrated into the closing part of the inner lid, and a packing is interposed between the inner lid and the mouth of the container, and the packing has a hole for removing the contents. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent Publication No. 2021-14298 [Patent Document 2] Actual Publication Showa 49-78349 Summary of the Invention [Problem to be solved by the invention]

[0007] This type of cap can be formed into the desired opening shape to suit the contents, but it is difficult to use the same cap to handle contents with significantly different properties, such as liquids and powders, and a cap suitable for each content is required. In addition, some highly moisture-proof containers have a gasket that seals the opening of the container, and then a lid is attached on top of that. In this case, when using the container for the first time, the lid must be removed, the gasket must be peeled off to open the container, and then the lid must be replaced.

[0008] This type of cap has a completely different structure between those that do not use gaskets and those that do, and there is no structure that can be used with or without gaskets while maintaining moisture resistance and sealing properties.

[0009] The present invention solves the above-mentioned problems and aims to provide a cap that can be used both when a gasket is not placed on the mouth of a container and when a gasket is placed on the mouth of a container. [Means for solving the problem]

[0010] In order to achieve the above object, the cap according to the present invention comprises a cap body to be attached to the mouth of a container, an inner plug portion corresponding to the mouth opening, and an upper lid portion which is integral with the cap body via a hinge and swings about the hinge between an open position and a closed position; The inner plug portion has a discharge portion surrounding the inner plug opening, a plug body that closes the inner plug opening and is integrated with the discharge portion via a score, and an inner seal portion that surrounds the mouth opening of the container and can abut against the inner circumferential surface of the mouth, and the inner surface of the plug body and the tip of the inner seal portion are at the same position in the axial direction of the mouth, and the cap body has an outer seal portion that surrounds the mouth opening of the container and can abut against the opening edge surface. In a first mode of use, the inner seal of the middle plug part abuts against the inner peripheral surface of the opening edge of the container, and the outer seal of the cap body abuts against the opening edge end surface of the container, and in a second mode of use, the stopper body of the middle plug part closes the hole of the packing, which has one or more holes and is placed on the opening edge end surface to cover the mouth opening of the container, and the inner seal presses against the packing. It is characterized by:

[0012] The cap according to the present invention comprises a cap body to be attached to the mouth of a container, an inside plug portion corresponding to the mouth opening, and an upper lid portion that is integral with the cap body via a hinge and swings around the hinge between an open position and a closed position, the inside plug portion having a discharge portion that surrounds the inside plug opening, a stopper body that closes the inside plug opening and is integral with the discharge portion via a score, and an inside seal portion that surrounds the mouth opening of the container and can abut against the inner peripheral surface of the opening edge, and the cap body has an outside seal portion that surrounds the mouth opening of the container and can abut against the opening edge end surface, and an inside plug support portion that holds the inside plug portion so that it can move over a predetermined distance in the axial direction of the mouth of the container. the inner surface of the stopper body and the tip of the inner seal part are at the same position in the axial direction of the mouth part, or the tip of the inner seal part is at a position receding further outward from the mouth part in the axial direction of the mouth part than the inner surface of the stopper body; the inner stopper support part holds the inner stopper part in a position such that it can be displaced in the axial direction of the mouth part of the container between a first usage form position and a second usage form position; in the first usage form, the inner seal part of the inner stopper part abuts against the inner peripheral surface of the opening rim of the container, and the outer seal part of the cap body abuts against the opening rim end face of the container; and in the second usage form, the stopper body of the inner stopper part closes the holes in a gasket which has one or more holes and is placed on the opening rim end face to cover the mouth opening of the container, and the outer seal part of the cap body presses against the gasket.

[0014] In the cap of the present invention, in a first usage mode, the tip of the inner seal portion is located in a position that protrudes more toward the inside of the mouth of the container than the tip of the outer seal portion in the axial direction of the mouth of the container, and in a second usage mode, the inner surface of the stopper body of the inner stopper portion that is in close contact with the packing in the axial direction of the mouth of the container and the tip of the inner seal portion are located in a position that is receded more toward the outside of the mouth of the container than the tip of the outer seal portion, and the tip of the outer seal portion that presses against the packing is located close to the opening edge end surface of the container.

[0016] In the cap of the present invention, the tip of the outer seal portion is characterized by being tapered toward the axial direction of the mouth of the container. [Effects of the Invention]

[0017] As described above, the cap according to the present invention can be used regardless of whether or not a packing is used.

[0018] In other words, in the first usage mode, which does not use a gasket, when the stopper body is not opened and the bottle is unused, the inner seal portion of the inner stopper portion and the outer seal portion of the cap body provide multiple sealing performance to seal the space inside the cap, reliably preventing liquid leakage.

[0019] In the second usage mode using a gasket, when the stopper body is not opened and unused, the stopper body of the inner stopper section covers the hole in the gasket and fits tightly against the gasket, sealing the inside of the container and preventing moisture, and the inner seal part of the cap body presses against the gasket and fits tightly, sealing the inside of the inner stopper section and preventing moisture, so multiple sealing performance is demonstrated and moisture prevention is ensured.

[0020] When in use, the stopper body is removed from the inner plug portion at the score and opened, opening the hole in the packing and allowing the contents to be removed, so the opening operation can be performed without the need to attach or detach the cap to the container.

[0021] In addition, the cap body can be used regardless of whether or not a gasket is used, even when the cap body holds the inner plug portion via the inner plug support portion and the inner plug portion can be moved a predetermined distance in the axial direction of the mouth of the container.

[0022] In other words, in the first usage mode, which does not use a gasket, when the stopper body is not opened and the bottle is unused, the inner seal portion of the inner stopper portion and the outer seal portion of the cap body provide multiple sealing performance to seal the space inside the cap, reliably preventing liquid leakage.

[0023] In the second usage mode using a gasket, when the stopper body is not opened and unused, the stopper body of the inner stopper section blocks the hole in the gasket and fits tightly against the gasket, sealing the inside of the container and preventing moisture, and the outer seal part of the cap body presses against the gasket and fits tightly against it, sealing the space inside the cap and preventing moisture, thereby providing multiple sealing capabilities and ensuring moisture protection.

[0024] When in use, the stopper body is removed from the inner plug portion at the score and opened, opening the hole in the packing and allowing the contents to be removed, so the opening operation can be performed without the need to attach or detach the cap to the container.

[0025] The outer seal portion has a tapered tip, which allows it to be pressed deep into the packing, improving sealing performance. [Brief explanation of the drawings]

[0026] [Figure 1] FIG. 1 is a cross-sectional view showing an unopened cap according to an embodiment of the present invention, illustrating a first usage mode in which no packing is used. [Figure 2] FIG. 10 is a cross-sectional view showing the unopened cap according to the embodiment, illustrating a second usage mode in which a packing is used. [Figure 3] FIG. 10 is a cross-sectional view showing an unopened cap according to another embodiment of the present invention, illustrating a first usage mode in which no packing is used. [Figure 4] FIG. 10 is a cross-sectional view showing the unopened cap according to the embodiment, illustrating a second usage mode in which a packing is used. [Figure 5] FIG. 10 is a top perspective view showing the cap in an unopened state according to the embodiment; [Figure 6] FIG. 10 is a bottom perspective view showing the cap in an unopened state according to the embodiment. [Figure 7] 10 is a rear view showing the cap in an unopened state according to the embodiment with the top lid portion closed. [Figure 8] FIG. 10 is a side view showing the cap in an unopened state according to the embodiment, with the top lid portion opened. DETAILED DESCRIPTION OF THE INVENTION

[0027] Example 1 An embodiment of a cap according to the present invention will be described below with reference to the drawings. As shown in Figures 1 and 2, cap 1 has a cylindrical cap body 4 that is attached to the mouth 3 of a container 2, an upper lid portion 6 that is integral with cap body 4 via a hinge 5 and swings around the hinge between an open position and a closed position, and an inner plug portion 7 that corresponds to the mouth opening 31 of container 2. Cap 1 is made entirely of resin.

[0028] The cap body 4 has an outer seal part 41 that surrounds the mouth opening 31 of the container 2 and can abut against the opening edge surface 32, and an inner plug support part 42 that holds the inner plug part 7. The cap body 4 has a female thread part 43 on its inner peripheral surface that screws into the male thread part 33 on the outer peripheral surface of the mouth part 3.

[0029] The outer seal portion 41 has a flat seal surface 41 a that abuts against the opening edge end surface 32 of the mouth portion 3 of the container 2 .

[0030] The cap body 4 has a circular projection 44 that projects outward in the radial direction, and the top cover 6 has a stopper 62 on its inner surface that has a recess 61 that fits onto the projection 44 .

[0031] The inner plug part 7 has a cylindrical discharge part 72 that surrounds the inner plug opening (the planned opening area before opening) 71, an inner seal part 73 that surrounds the mouth opening 31 of the container 2 and can abut against the inner circumferential surface of the mouth part 3, and a plug body 74 that closes the inner plug opening 71, and the plug body 74 is integrated with the discharge part 72 via a score 75. A pull ring 76 is provided on the outer upper surface of the plug body 74.

[0032] The upper lid portion 6 has a lid seal portion 63 that is in tight contact with the inner peripheral surface of the discharge portion 72 .

[0033] The cap 1 according to this embodiment can be used regardless of whether or not a packing 8 (see FIG. 2) is used.

[0034] The first usage mode is a mode in which the packing 8 (see FIG. 2) is not used, as shown in Fig. 1. In the first usage mode, the inner seal portion 73 of the inside plug portion 7 enters the mouth portion 3 of the container 2, the outer peripheral surface of the inner seal portion 73 abuts against the inner peripheral surface of the mouth portion 3, and the outer seal portion 41 of the cap body 4 abuts against the opening edge end surface 32 of the container 2 at the seal surface 41a.

[0035] In the first mode of use in which this gasket 8 is not used, when the stopper body 74 is not opened and unused, the inner seal portion 73 of the inner stopper portion 7 and the outer seal portion 41 of the cap body 4 provide multiple sealing performance to seal the space inside the cap, reliably preventing liquid leakage.

[0036] When opening, the pull ring 76 is pulled, and the score 75 breaks, removing the stopper body 74 from the inner stopper portion 7 and opening the inner stopper opening 71. After opening, with the top lid portion 6 closed, the convex portion 44 of the cap body 4 fits into the concave portion 61 of the stopper 62 of the top lid portion 6, reliably preventing leakage.

[0037] The second usage mode is a mode in which a packing 8 is used, as shown in Figure 2. The packing 8 has one or more holes 81 and is arranged on the opening edge surface 32, covering the mouth opening 31 of the container 2. The stopper body 74 of the inner plug part 7 closes the hole 81 of the packing 8 and comes into tight contact with the packing 8, and the inner seal part 73 of the cap body 4 presses against the packing 8.

[0038] In order to bring the surfaces of the plug body 74 of the inner plug portion 7 and the packing 8 into as close contact as possible, the inner surface of the plug body 74 of the inner plug portion 7 and the tip of the inner seal portion 73 are at the same position in the axial direction of the mouth portion 3.

[0039] In the second usage mode in which this packing 8 is used, the tip of the outer seal portion 41 is located at a position separated from the opening edge end surface 32 of the container 2.

[0040] In the second usage mode, the stopper body 74 of the inner plug portion 7 comes into close contact with the packing 8, closing the hole 81 in the packing 8 and sealing the inside of the container 2 to protect against moisture. Furthermore, the inner seal portion 73 of the cap body 4 presses against the packing 8, thereby exerting necessary and sufficient sealing performance and forming a sealed space inside the inner plug portion 7, thereby providing multiple sealing performance and ensuring moisture protection.

[0041] When first used, similarly to the first mode of use, simply by removing stopper body 74 from inner plug portion 7 by breaking score 75 and opening it, hole 81 in packing 8 is opened, allowing the contents to be taken out. Therefore, the opening operation can be performed without the need to attach or detach cap 1 to or from container 2. Example 2 Hereinafter, other embodiments of the cap according to the present invention will be described with reference to the drawings. The members described in the first embodiment will also be described.

[0042] 3 to 8, the cap 1 has a cylindrical cap body 4 that is attached to the mouth 3 of the container 2, an upper lid part 6 that is integral with the cap body 4 via a hinge 5 and swings around the hinge between an open position and a closed position, and an inner plug part 7 that corresponds to the mouth opening 31 of the container 2. The entire cap 1 is made of resin.

[0043] The cap body 4 has an outer seal part 45 that surrounds the mouth opening 31 of the container 2 and can abut against the opening edge surface 32, and an inner plug support part 46 that holds the inner plug part 7 so that it can move a predetermined distance in the axial direction of the mouth 31 of the container 3. The cap body 4 has a female thread part 43 on its inner peripheral surface that screws into the male thread part 33 on the outer peripheral surface of the mouth 3.

[0044] The outer seal portion 45 has a shape in which the tip tapers toward the axial direction of the mouth portion 3 of the container 2 .

[0045] The cap body 4 has a circular projection 44 that projects outward in the radial direction, and the top cover 6 has a stopper 62 on its inner surface that has a recess 61 that fits onto the projection 44 .

[0046] The inner plug part 7 has a cylindrical discharge part 72 that surrounds the inner plug opening (the planned opening area before opening) 71, an inner seal part 73 that surrounds the mouth opening 31 of the container 2 and can abut against the inner peripheral surface 34 of the opening edge, and a plug body 74 that closes the inner plug opening 71, and the plug body 74 is integrated with the discharge part 72 via a score 75. A pull ring 76 is provided on the outer upper surface of the plug body 74.

[0047] The discharge part 72 has a lip part 77 that extends radially outward on the outer periphery of the opening edge, and the upper lid part 6 has a lid seal part 64 that is in close contact with the outer periphery of the lip part 77 .

[0048] The inner plug support portion 46 holds the inner plug portion 7 in a displaceable manner in the axial direction of the mouth portion 3 of the container 2 between the position of the first usage form and the position of the second usage form, so that the cap 1 can be used regardless of whether or not a gasket 8 (see Figure 4) is used.

[0049] The first usage mode is a mode in which packing 8 (see FIG. 4) is not used, as shown in Fig. 3. In the first usage mode, the inner seal portion 73 of the inside plug portion 7 abuts against the inner peripheral surface 34 of the opening edge of the container 2, and the outer seal portion 45 of the cap body 4 abuts against the opening edge end surface 32 of the container 2. That is, in the first usage mode, the tip of the inner seal portion 73 is positioned so as to protrude further toward the inside of the mouth of the container 2 than the tip of the outer seal portion 45 in the axial direction of the mouth 3 of the container 2.

[0050] In the first mode of use in which this packing 8 is not used, when the stopper body 74 is not opened and unused, the inner seal portion 73 of the inner stopper portion 7 and the outer seal portion 45 of the cap body 4 provide multiple sealing performance to seal the space inside the cap, reliably preventing liquid leakage.

[0051] To open the container, pull ring 76 is pulled, and score 75 breaks, removing stopper body 74 from inner stopper portion 7 and opening inner stopper opening 71. After opening, with top lid portion 6 closed, concave portion 61 of stopper 62 of top lid portion 6 fits into convex portion 44 of cap body 4, and lid seal portion 64 of top lid portion 6 tightly fits into lip portion 77 of discharge portion 72 to form a seal, reliably preventing liquid leakage.

[0052] The second usage mode is a mode in which a packing 8 is used, as shown in Figure 4. The packing 8 has one or more holes 81 and is arranged on the opening edge surface 32, covering the mouth opening 31 of the container 2. The stopper body 74 of the inner plug part 7 closes the hole 81 of the packing 8 and comes into tight contact with the packing 8, and the outer seal part 45 of the cap body 4 presses against the packing 8.

[0053] In order to bring the surfaces of the plug body 74 of the inner plug portion 7 and the packing 8 into as close contact as possible, the inner surface of the plug body 74 of the inner plug portion 7 and the tip of the inner seal portion 73 are at the same position in the axial direction of the mouth portion 3. Alternatively, it is also possible to configure the tip of the inner seal portion 73 to be located further back outside the mouth portion 3 in the axial direction of the mouth portion 3 than the inner surface of the plug body 74 of the inner plug portion 7.

[0054] In the second usage mode using this packing 8, the inner surface of the stopper body 74 of the inner stopper portion 7, which is in close contact with the packing 8 in the axial direction of the mouth 3 of the container 2, and the tip of the inner seal portion 73 are located further back toward the outside of the mouth of the container 2 than the tip of the outer seal portion 45, and the tip of the outer seal portion 45, which presses against the packing 8, is located close to the opening edge end surface 32 of the container 2.

[0055] In this second usage form, the inner surface of the stopper body 74 and the tip of the inner seal portion 73 are spaced apart from the tip of the outer seal portion 45 in the axial direction of the mouth portion 3 by a distance less than the thickness of the gasket 8, and when the outer seal portion 45 of the cap body 4 presses against the gasket 8, the stopper body 74 of the inner stopper portion 7 comes into tight contact with the gasket 8 with sufficient pressing pressure, thereby blocking the hole 81 in the gasket 8.

[0056] Furthermore, the tip of the outer seal portion 45 is positioned close to the opening edge end surface 32 of the container 2, and the inner surface of the stopper body 74 and the tip of the inner seal portion 73 are spaced apart from the tip of the outer seal portion 45 by a distance less than the thickness of the gasket 8, so when comparing the first and second usage forms, the overall height in the axial direction of the mouth portion 3 is approximately the same for both.

[0057] In the second usage mode, the stopper body 74 of the inner plug portion 7 comes into close contact with the packing 8, closing the hole 81 in the packing 8 and sealing the inside of the container 2 to protect against moisture. Furthermore, the outer seal portion 45 of the cap body 4 presses against the packing 8, providing sufficient sealing performance, sealing the space in the cap 1 and forming a sealed space outside the packing 8, thereby providing multiple sealing performance and ensuring moisture protection. The tapered tip of the outer seal portion 45 allows it to be pressed deep into the packing 8, improving sealing performance.

[0058] When first used, similarly to the first mode of use, simply by removing stopper body 74 from inner plug portion 7 by breaking score 75 and opening it, hole 81 in packing 8 is opened, allowing the contents to be taken out. Therefore, the opening operation can be performed without the need to attach or detach cap 1 to or from container 2.

[0059] In this second mode of use, a packing 8 is loaded inside the cap 1 and the cap 1 is attached to the mouth 3 of the container 2.

[0060] The cap 1 according to this embodiment does not include the packing 8 immediately after it comes out of the molding process, and it is necessary to separately load the packing 8. However, as another embodiment, it is also possible to incorporate the packing in advance (inset) during the molding process.

[0061] In this embodiment, the packing 8 is loaded in the following manner.

[0062] 1. When loading the packing 8, the inner plug portion 7 is retracted in advance to the position of the second usage mode by deforming the inner plug support portion 46. In this case, the plug body 74 and inner seal portion 73 of the inner plug portion 7 do not contact the packing 8, and only the outer seal portion 45 of the cap body 4 abuts against the packing 8.

[0063] In this state, the cap 1 is attached to the mouth 3 of the container 2. As the cap body 4 and the mouth 3 of the container 2 are screwed together, the cap 1 advances in the axial direction of the mouth 3 of the container 2. The packing 8 abuts against the opening edge end surface 32 of the mouth 3, and then the outer seal portion 45 of the cap body 4 presses the packing 8 while advancing to a position close to the opening edge end surface 32 of the mouth 3.

[0064] During this time, the inner plug portion 7 advances in the axial direction of the mouth portion 3, abutting the packing 8 with the plug body 74 and the inner seal portion 73, and while further pressing the packing 8, it comes into tight contact with the packing 8 with the necessary and sufficient pressing pressure, thereby blocking the hole 81 in the packing 8.

[0065] 2. When loading the packing 8, the inner plug portion 7 is pushed in as the packing 8 is inserted. Then, the plug body 74 of the inner plug portion 7, the inner seal portion 73, and the outer seal portion 45 of the cap body 4 are all brought into contact with the packing 8.

[0066] In this state, the cap 1 is attached to the mouth 3 of the container 2. As the cap body 4 and the mouth 3 of the container 2 are screwed together, the cap 1 advances in the axial direction of the mouth 3 of the container 2. The packing 8 abuts against the opening edge end surface 32 of the mouth 3, and then the outer seal portion 45 of the cap body 4 presses the packing 8 while advancing to a position close to the opening edge end surface 32 of the mouth 3.

[0067] During this time, the inner plug portion 7 advances together with the cap body 4, with the plug body 74 and inner seal portion 73 abutting against the packing 8, and stops advancing when the packing 8 abuts against the opening edge end surface 32 of the mouth portion 3. The inner plug portion 7 then retreats relative to the cap body 4, which continues to advance, and reaches the position for the second usage mode, accompanied by deformation of the inner plug support portion 46. The plug body 74 receives a reaction force from the packing 8 and comes into close contact with the packing 8 with the necessary and sufficient pressing pressure, closing the hole 81 in the packing 8.

[0068] 3. When loading the packing 8, the inner plug portion 7 is maintained in the position of the first usage form, the plug body 74 and the inner seal portion 73 of the inner plug portion 7 abut against the packing 8, and the outer seal portion 45 of the cap body 4 does not come into contact with the packing 8.

[0069] In this state, the cap 1 is attached to the mouth 3 of the container 2. As the cap body 4 and the mouth 3 of the container 2 are screwed together, the cap 1 advances in the axial direction of the mouth 3 of the container 2.

[0070] The inner plug portion 7 advances with the plug body 74 abutting against the packing 8, and stops advancing when the packing 8 abuts against the opening edge end surface 32 of the mouth portion 3, retreating relative to the cap body 4 which continues to advance, and reaching the position of the second usage form accompanied by deformation of the inner plug support portion 46. The plug body 74 receives a reaction force from the packing 8 and comes into close contact with the packing 8 with the necessary and sufficient pressing pressure, thereby closing the hole 81 in the packing 8.

[0071] During this time, the outer seal portion 45 of the cap body 4 presses the packing 8 and advances to a position close to the opening edge end surface 32 of the mouth portion 3 . [Explanation of symbols]

[0072] 1 cap 2 containers 3 Mouth 4 Cap body 5 Hinge 6 Top lid 7 Inner plug 8. Packing 31 Mouth opening 32 Opening edge surface 33 Male thread 34 Inner surface of opening edge 41, 45 Outer seal part 41a sealing surface 42, 46 Inner plug support part 43 Female thread 44 Convex part 61 Recess 62 Stopper 63, 64 Lid seal 71 Inner plug opening (opening area before opening) 72 Discharge part 73 Inner seal 74 Plug body 75 score 76 Pull Ring 77 Lip 81 holes

Claims

1. The cap includes a cap body that is attached to the mouth of the container, an inner plug portion that corresponds to the mouth opening, and an upper lid portion that is integral with the cap body via a hinge and swings around the hinge between an open position and a closed position, The inner plug portion has a discharge portion surrounding the inner plug opening, a plug body that closes the inner plug opening and is integrated with the discharge portion via a score, and an inner seal portion that surrounds the mouth opening of the container and can abut against the inner circumferential surface of the mouth, and the inner surface of the plug body and the tip of the inner seal portion are at the same position in the axial direction of the mouth, The cap body has an outer seal portion that surrounds the mouth opening of the container and can abut against the opening edge surface, and in a first usage mode, the inner seal portion of the inside plug abuts against the inner peripheral surface of the opening edge of the container, and the outer seal portion of the cap body abuts against the opening edge surface of the container, In the second mode of use, the cap is characterized in that the stopper body of the inner plug closes the hole in the packing, which has one or more holes and is placed on the edge surface of the opening to cover the mouth opening of the container, and the inner seal presses against the packing.

2. The cap includes a cap body that is attached to the mouth of the container, an inner plug portion that corresponds to the mouth opening, and an upper lid portion that is integral with the cap body via a hinge and swings around the hinge between an open position and a closed position, The inner plug portion has a discharge portion surrounding the inner plug opening, a plug body that closes the inner plug opening and is integrated with the discharge portion via a score, and an inner seal portion that surrounds the mouth opening of the container and can abut against the inner peripheral surface of the opening edge, The cap body has an outer seal portion that surrounds the mouth opening of the container and can abut against the edge of the opening, and an inner plug support portion that holds the inner plug portion so that it can move over a predetermined distance in the axial direction of the mouth of the container, and the inner surface of the plug body and the tip of the inner seal portion are at the same position in the axial direction of the mouth, or the tip of the inner seal portion is at a position that is further back from the inner surface of the plug body toward the outside of the mouth in the axial direction of the mouth, the inside plug support portion holds the inside plug portion displaceably between a position of the first usage form and a position of the second usage form in the axial direction of the mouth portion of the container; In the first usage mode, the inner seal portion of the inner plug portion abuts against the inner peripheral surface of the opening edge of the container, and the outer seal portion of the cap body abuts against the opening edge end surface of the container, In the second usage mode, the cap is characterized in that the stopper body of the inner plug portion seals the hole in the gasket, which has one or more holes and is placed on the edge surface of the opening to cover the mouth opening of the container, and the outer seal portion of the cap body presses against the gasket.

3. In the first usage mode, the tip of the inner seal portion is located in a position that protrudes more toward the inside of the mouth of the container than the tip of the outer seal portion in the axial direction of the mouth of the container, The cap described in claim 2, characterized in that in the second usage mode, the inner surface of the stopper body of the inner stopper portion and the tip of the inner seal portion, which are in tight contact with the gasket in the axial direction of the mouth of the container, are positioned further back toward the outside of the mouth of the container than the tip of the outer seal portion, and the tip of the outer seal portion, which presses against the gasket, is positioned close to the opening edge end surface of the container.

4. 4. The cap according to claim 2, wherein the tip of the outer seal portion is tapered toward the axial direction of the mouth of the container.

Images