Replacement container containing a pouch pack, pouch pack, and container body

Abstract

To provide a replaceable container with a pouch pack stored therein, with the number of components reduced so as to facilitate replacement work.SOLUTION: A replaceable container 1 in which a pouch pack is stored includes: a pouch pack on which a spout having a pour-out port 22 is mounted; a pour-out pump 80 which is mounted on the pour-out port 22; and a container body 50 which stores the pouch pack replaceably. At the spout, a lid part 25 is formed for closing an opening part 50A, through which the pouch pack is put in / taken out, of the container body 50.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a replacement container in which a pouch pack is housed, a pouch pack to be installed in such a replacement container, and a container body in which the pouch pack is housed. [Background technology]

[0002] Conventionally, environmental issues regarding the disposal and recycling of plastic containers have become an issue, and replacement containers for pouch packs have become widespread. For example, a pouch pack containing shampoo, liquid detergent, cosmetic liquid, etc. (hereinafter collectively referred to as contents) is placed inside another outer container, and after the contents of the pouch pack are consumed, the empty pouch pack is replaced with a pouch pack containing the contents. Such replacement containers are required to be easy and simple to replace, and it is preferable that the number of parts is as small as possible.

[0003] For example, Patent Document 1 discloses a replacement container for a pouch pack in which a lid is attached to an opening at the top of a cylindrical container. An opening with a female screw is formed in the center of the lid, and the spout of the pouch pack is screwed into this part to make the spout protrude from the lid, and in this state, the lid is attached to the container. The spout of the pouch pack installed in the container protrudes from the lid, and a pump that sucks and pours the contents is attached to this protruding part for use. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2017-159921 Summary of the Invention [Problem to be solved by the invention]

[0005] When replacing the above-mentioned replacement container and the pouch pack attached thereto, the lid body must be removed from the container body, the pouch pack must be removed from the lid body, a new pouch pack must be attached, and the lid body with the new pouch pack attached must be attached to the container body. This poses the problem that the number of parts to be replaced is large, making the replacement work complicated.

[0006] The present invention has been made in response to the above-mentioned problems, and aims to provide a replacement container, a pouch pack, and a container body that house a pouch pack that has a reduced number of parts and can be easily replaced. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the replacement container of the present invention comprises a pouch pack equipped with a spout having a pouring outlet, a pouring pump attached to the pouring outlet, and a container body that removably houses the pouch pack, and is characterized in that the spout is formed with a lid portion that closes an opening of the container body through which the pouch pack is inserted and removed.

[0008] In the replaceable container having the above-mentioned configuration, when replacing the spout-equipped pouch pack with the container body, the lid portion formed on the spout closes the opening of the container body, so there is no need to remove the lid portion from the container body and attach the pouch pack to the lid portion during the replacement operation. In other words, by forming a lid portion on the spout of the pouch pack, the number of replacement parts is reduced, making it possible to easily perform the replacement work.

[0009] The present invention also features a pouch pack which is removably stored in a container body and has a spout with a pouring outlet attached thereto, and which is characterized in that the spout is formed with a lid portion which closes the opening of the container body through which the pouch pack is inserted and removed.

[0010] With this type of pouch pack, when the contents of the pouch pack stored in the replacement container run out, it is removed and stored in the container body of the replacement container.When storing, the lid portion formed on the spout directly closes the opening of the container body, making the replacement operation easy.

[0011] The present invention also features a container body that interchangeably stores a pouch pack equipped with a spout having a pouring outlet and a lid portion, the container body having an opening through which the pouch pack is inserted and removed and which is closed by the lid portion, and the opening is provided with an engagement / disengagement means for removably engaging and disengaging the lid portion of the spout with respect to the opening.

[0012] According to such a container body, when the pouch pack is stored, the lid portion formed on the spout directly closes the opening of the container body, so that replacement work can be easily performed. Effect of the Invention

[0013] According to the present invention, it is possible to obtain a replacement container, a pouch pack, and a container body containing a pouch pack that has a reduced number of parts and can be easily replaced. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a perspective view showing a first embodiment of a replacement container according to the present invention. [Diagram 2] FIG. 2 is a front view showing the configuration of the pouch pack. [Diagram 3] 1A to 1D are diagrams showing a spout of a pouch pack, where (a) is a perspective view, (b) is a plan view, (c) is a side view, (d) is a front view, and (d) is a bottom view. [Figure 4] 3A is a perspective view showing the configuration of a container body, FIG. 3B is a cross-sectional view at the center, and FIG. 3C is an enlarged view of a main part. [Diagram 5] FIG. 4 is a diagram showing the state in which the pouch pack is housed in a container body. [Figure 6]FIG. 2 is a diagram showing a container body in which a pouch pack is housed. [Figure 7] 1A and 1B are diagrams showing a container body in which a pouch pack is housed, in which (a) is an oblique view, (b) is a cross-sectional view at the center, and (c) is an enlarged view of the main part. [Figure 8] 13 is a diagram showing the state in which a dispensing pump is attached to a pouch pack contained in a container body. FIG. [Figure 9] A diagram showing the state in which the dispensing pump is inserted into the pouch pack contained in the container body. [Figure 10] 2 is a cross-sectional view at the center showing a state in which a dispensing pump is attached to a pouch pack contained in a container body. FIG. [Figure 11] 13 is a diagram showing the state in which the injection pump is removed from the pouch pack contained in the container body. FIG. [Figure 12] FIG. 13 is a diagram showing the state in which the pouch pack is removed from the container body. [Figure 13] FIG. 4 is a perspective view showing a second embodiment of a replacement container according to the present invention. [Figure 14] FIG. 2 is a perspective view showing the configuration of a pouch pack. [Figure 15] 1A to 1F are diagrams showing the spout of a pouch pack, where (a) is a perspective view, (b) is a plan view, (c) is a cross-sectional view taken along line AA in (b), (d) is a front view, (e) is a side view, and (f) is a bottom view. [Figure 16] 13A and 13B are diagrams showing a container body with a replaced pouch pack, in which (a) is a cross-sectional view at the center, and (b) is an enlarged view of the main part. [Figure 17] FIG. 11 is a perspective view showing a third embodiment of a replacement container according to the present invention. [Figure 18] 1A and 1B are diagrams showing the configuration of a spout, where (a) is a perspective view and (b) is a side view. [Figure 19] FIG. 11 is a perspective view showing a fourth embodiment of a replacement container according to the present invention. [Figure 20] 1A to 1C are diagrams showing the configuration of a spout, where (a) is a perspective view, (b) is a side view, and (c) is a cross-sectional view taken along line BB in FIG. [Figure 21] FIG. 13 is a perspective view showing a fifth embodiment of a replacement container according to the present invention. [Figure 22] 4A to 4C are diagrams showing the configuration of a container body, in which (a) is a perspective view, (b) is a plan view, and (c) is a cross-sectional view of the engaging / disengaging means of the opening. [Figure 23] 1A and 1B are diagrams showing the configuration of a spout, in which (a) is a perspective view and (b) is a side view. [Figure 24] 11A and 11B are plan views showing the procedure for attaching a spout to an opening on which a dispensing pump is attached, where (a) shows the spout engaged with the opening, and (b) shows the spout rotated and fixed in place. [Diagram 25] FIG. 13 is a perspective view showing a sixth embodiment of a replacement container according to the present invention. [Figure 26] 1A to 1C are diagrams showing the configuration of a spout, where (a) is a perspective view, (b) is a side view, and (c) is a cross-sectional view taken along line CC in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] In the present invention, the integrated state of a pouch pack to which a spout having a spout is attached, a dispensing pump attached to the spout's dispensing outlet, and a container body that contains the pouch pack is collectively defined as a "replacement container." In this case, there is no limitation on the sizes of the pouch pack, the dispensing pump, and the container body.

[0016] 1 to 12 are diagrams showing a first embodiment of a replacement container according to the present invention. The replacement container 1 shown in FIG. 1 includes a pouch pack 10 and a container body 50 shown in FIGS.

[0017] The pouch pack 10 of the present invention is configured as a replacement type for the container body 50, and in this embodiment, is formed by welding the peripheries (areas indicated by dots) of overlapping rectangular synthetic resin sheet-like members 10a, 10b. Various contents are stored in the storage section 10A formed by welding depending on the application, and the pouch pack 10 has flexibility so that it shrinks as the contents are poured out, and after the contents are used up, it is removed from the container body 50 and discarded as it is.

[0018] 2, the pouch pack 10 of this embodiment is configured as a self-supporting bag structure with a bottom, but may have a triangular structure with three sides welded together, or may have a so-called gusset structure with gussets on the left and right sides. In that case, even when the contents are poured out and the storage section 10A is deflated, the sheet-like members 10a, 10b are less likely to come into close contact with each other due to the gussets on the left and right sides, and a flow path for the contents is more likely to be secured.

[0019] A spout 20 made of synthetic resin that allows the contents to be poured out is attached to the upper edge of the storage section 10A. The spout 20 is provided with a welded section 21 formed with a substantially boat-shaped cross section so as to be interposed between the sheet-like members 10a, 10b and welded thereto, and a cylindrical pouring outlet 22 that is integrated with the welded section 21 and has a flow path 22a through which the contents pass. A male screw section 22b is formed on the outer circumferential surface of the pouring outlet 22, and a cap 23 having a female screw section is screwed and attached to this section.

[0020] Further, the spout 20 is integrally formed with a lid portion 25 that closes an opening 50A of a container body 50 through which the pouch pack 10 is inserted and removed. The lid portion 25 is formed in a plate shape corresponding to the shape of the opening 50A of the container body 50, and in this embodiment, is formed in a substantially rhombus shape in a direction perpendicular to the extension direction (axial direction) of the spout 22. The spout 20 has the spout 22 formed to protrude above the center of the plate-shaped lid portion 25, and the welded portion 21 formed below the lid portion 25.

[0021] 4, the container body 50 has a bottom 51 and is formed into a cylindrical shape with a polygonal cross section and a bottom, and its side wall 52 has an opening 50A at the upper end and is configured to have a storage body 50B that stores the pouch pack 10 in a self-supporting state. In this case, the side wall 52 has the same shape as the lid 25 of the spout 20 and is formed to a size that allows the outer edge of the lid 25 to fit inside the opening 50A.

[0022] The container body 50 may be hollowed out without forming the bottom 51, and the lower edge of the side wall 52 may be used as the installation surface, or the side wall 52 may be formed with an opening or the like to improve the design. The material for forming the container body 50 is not particularly limited, but for example, a plastic molded product can be used, which allows low-cost manufacturing and easy molding into the shape shown in the figure. Alternatively, when a high-class feel is desired, such as for storing pouch packs of cosmetics, the container body 50 may be molded from metal or wood, or may have a partial frame structure.

[0023] The container body 50 is provided with an engaging / disengaging means 55 for detachably engaging and disengaging the lid portion 25 with respect to the opening 50A when the pouch pack 10 is inserted through the opening 50A. The engaging / disengaging means 55 in this embodiment is provided at the upper end of the side wall 52 that defines the opening 50A of the container body, and has a configuration including a plurality of elastic displacement portions 56 that elastically displace and disengage the lid portion 25 when the lid portion is attached or detached.

[0024] Specifically, the elastic displacement parts 56 are provided in pairs at opposing positions on the upper end of the side wall 52, and are configured as inverted claw spring parts that protrude upward from the edge 52a of the opening 50A. That is, on both sides of the elastic displacement part (inverted claw spring part) 56, a notch groove 57 is formed along the vertical direction so that the elastic displacement part 56 can be tilted outward, and a locking protrusion 56a is formed on the inner surface side of the tip of the elastic displacement part. As a result, when the ends on both sides of the lid part 25 are positioned on the locking protrusions 56a and the lid part 25 is lowered from above, each of the elastic displacement parts 56 is elastically displaced so as to be tilted outward, and when the lid part 25 passes the locking protrusions 56a, each of the elastic displacement parts 56 returns to its original state and abuts against the upper surface of the lid part 25, thereby holding the lid part 25 from coming off. At this time, the opening 50A is closed by the lid part 25.

[0025] In this embodiment, a step 59 is provided on the inside of the side wall 52 so that when the spout lid 25 closes the opening 50A, the surface of the lid 25 is substantially flush with the edge 52a of the side wall 52. This step 59 can be configured, for example, as a rib-like member adjacent to the notched groove 57, and abuts against the back surface of the lid 25 to support the lid.

[0026] Next, a method of using the refill container 1 will be described with reference to FIGS. The above-mentioned pouch pack 10 is accommodated in the accommodation body 50B of the container body 50 through the opening 50A of the container body 50. During this accommodation, the lid portion 25 formed on the spout 20 of the pouch pack 10 is positioned at the opening 50A, and when the pouch pack 10 is pushed downward, the locking projections 56a of the elastically deformable portion 56 are subjected to a pressing action, and both of the elastically deformable portions 56 fall outward together, and when the lid portion 25 passes the locking projections 56a, it returns to its original position and abuts against the upper surface of the lid portion 25, and holds the lid portion 25 so that it does not come off. At this time, the lid portion 25 is supported by abutting against the step portion 59, and the opening 50A is closed by the lid portion 25 (see Figs. 6 and 7), and the surface of the lid portion 25 is approximately flush with the edge 52a of the opening 50A.

[0027] Then, in this state, the cap 23 screwed onto the spout 22 is removed, and the spout pump 80 is attached to the spout (see Figs. 8 to 10). The dispensing pump 80 may be, for example, an airless flow type that does not introduce air into the inside during dispensing. Since such airless flow type dispensing pumps 80 are generally known, detailed structure will not be described, but the pumps include a pressing part 81 that is pressed against a biasing force, a cylindrical part 82 that is fixed to a male screw part 22b formed on the outer circumferential surface of the dispensing outlet 22 of the spout of the pouch pack 10, and a tubular part (dispensing tube) 83 that extends to the storage part 10A through a flow path of the spout 20 of the pouch pack 10. By pressing the pressing part 81, the contents in the pouch pack are discharged from a discharge part 85 formed in the pressing part 81. In this way, by preventing air from flowing in when the contents are dispensed, it is possible to store and dispense anaerobic contents such as cosmetic liquid.

[0028] Thereafter, after the contents of the pouch pack have been consumed, the spout pump 80 is removed from the spout 22 (see FIG. 11), and the spout 20 is pulled up while the spout 22 is held, whereby the elastically deformable portion 56 is elastically deformed so as to fall outward, and the empty pouch pack 10 can be removed together with the spout 20 (see FIG. 12).Then, the pouch pack filled with the contents is attached to the container body 50 in the same manner, completing the replacement operation.

[0029] According to the above-mentioned configuration, the lid portion 25 that closes the container body 50 is integrally formed with the spout 20, so that the number of parts of the replacement container is reduced, and the replacement operation can be easily performed.

[0030] Next, another embodiment of the present invention will be described. In the following embodiments, parts having the same functions as those in the above-described embodiments are given the same reference numerals, and detailed descriptions thereof will be omitted.

[0031] 13 to 16 are diagrams showing a second embodiment of a replacement container according to the present invention. The replacement container 1 of this embodiment is configured so that when replacing the pouch pack 10, the lid 25 of the spout 20 is placed on the edge 52a of the opening 50A. As shown in Figures 14 and 15, the lid 25 has a stepped structure with a lower wall 25A that fits into the opening 50A and an upper wall 25B that is placed on the edge 52a of the opening 50A, and a recess 25a is formed by cutting out a part of the upper wall 25B on each of the opposing sides, and the recess 25a is configured so that the locking protrusion 56a of the elastic displacement part 56 can be engaged with the recess 25a. That is, in this embodiment, the engaging / disengaging means for detachably engaging the lid 25 with the opening of the container body 50 is provided on both the container body 50 and the lid.

[0032] In such a configuration, when replacing the pouch pack 10, as shown in Figures 13 and 16, the locking projection 56a of the elastic displacement portion 56 of the container body engages with the recess 25a, the lower wall 25A fits into the opening 50A, and the periphery of the upper wall 25B abuts against the edge 52a of the opening 50A, and the opening 50A is closed by the lid portion. With such a configuration, the sealing performance when closed is improved, and the number of parts is reduced, making it possible to easily carry out replacement work.

[0033] 17 and 18 are diagrams showing a third embodiment of a replacement container according to the present invention. In this embodiment, the container body 50 is configured in a cylindrical shape (circular cross section), and the lid portion 25 of the spout 20 that closes the opening 50A of the container body 50 is configured in a disk shape. As in the above-mentioned first embodiment, the lid portion 25 is adapted to fit inside the side wall (circumferential wall) 52 to close the opening, and the inner surface of the side wall 52 is provided with a step portion (not shown) that supports the surface of the lid portion 25 so that it is substantially flush with the edge 52a of the side wall 52.

[0034] With a container body having such a shape, it becomes possible to attach the disk-shaped lid portion 25 to the locking projection 56a of the elastically deformable portion 56 of the container body 50 regardless of the position (as shown in the figure, a mark 25b or the like may be provided at the engagement position). Also, as with the above-mentioned embodiment, it becomes possible to reduce the number of parts and facilitate replacement work.

[0035] 19 and 20 are diagrams showing a fourth embodiment of a replacement container according to the present invention. In this embodiment, similarly to the third embodiment, the container body 50 is configured in a cylindrical shape, and the lid portion 25 of the spout 20 that closes the opening of the container body 50 is configured in a disk shape. Also, similarly to the second embodiment, the lid portion 25 is configured such that the locking projection 56a of the elastic displacement portion 56 of the container body is displaced to engage with the recess 25a, the lower wall 25A fits into the opening 50A, and the periphery of the upper wall 25B abuts against the edge 52a of the opening 50A, thereby closing the opening 50A.

[0036] As in the third embodiment described above, in the present invention, the shape of the container body can be modified in various ways, and accordingly, the shape of the lid of the spout 20 can also be modified in various ways. Also, as in the second embodiment, the lid can also be modified in various ways, such as being placed in contact with the edge 52a of the opening 50A. In the configuration of this embodiment as well, the sealing performance when closed is improved, and the number of parts is reduced, making it possible to easily carry out replacement work.

[0037] 21 to 24 are diagrams showing a fifth embodiment of a replacement container according to the present invention. In the above-described embodiment, the engagement / detachment means provided on the lid portion and container body pressed the lid portion 25 of the spout 20 against a pair of elastic displacement portions 56 in such a way as to spread them apart, thereby engaging the edge of the lid portion 25 with the engagement protrusions 56a. However, in the present embodiment, the lid portion 25 is configured to be attached and detached (to open and close the opening) by rotating the disk-shaped lid portion 25 relative to the cylindrical container body 50 (opening 50A).

[0038] Specifically, as shown in Fig. 22, the engaging / disengaging means 65 of this embodiment is formed by forming the opening 50A of the container body 50 to be somewhat thick, forming arc-shaped grooves 66 in opposing positions along the circumferential direction at two places on the inner edge of that part, and forming notches 52d in part of the upper wall (edge ​​52a of the opening of the container body) of each arc-shaped groove 66. Also, as shown in Fig. 23, a pair of projections 25d projecting radially are formed on the outer periphery of the disk-shaped lid 25 so as to fit into each of the cutouts 52d, and the engaging / disengaging means 65 is constituted by the engagement relationship between the projections 25d and the arc-shaped grooves 66.

[0039] That is, the pouch pack is attached to the container body by fitting a pair of projections 25d of lid portion 25 of the spout into cutout portions 52d (see FIG. 24(a)), and in this state, by pinching and rotating spout 20 (which may be a cap or a dispensing pump) in the direction of the arrow, the pair of projections 25d move circumferentially along groove 66 (FIG. 24(b)), and projections 25d are fixed by not coming out of groove 66. In this case, the position where groove 66 is formed and the thickness of lid portion 25 are configured such that, as shown in FIG. 21, when lid portion 25 closes the opening, its surface is approximately flush with edge 52a of the opening of the container body. In this manner, the engaging / disengaging means 65 may be configured to rotate the spout lid 25 relative to the opening 50A to open and close the lid.

[0040] In the above-mentioned configuration, as shown in Fig. 21 and Fig. 22, a protrusion 52e protruding toward the arc-shaped groove 66 may be formed near the notch 52d, and a protrusion 25e that overcomes the protrusion 52e when the lid 25 is rotated may be formed on the protrusion 25d of the lid 25 that moves in the circumferential direction along the arc-shaped groove 66. By forming such protrusions 52e, 25e on the container body 50 and the lid 25, when the lid 25 is rotated and fixed to the container body, the protrusions 52e, 25e do not come off easily even when the lid 25 is rotated in the opposite direction, so that the pouch pack can be prevented from coming off the container body inadvertently during use. In this case, the engagement relationship between the protrusions 52e, 25e may be formed so that they do not come off even when rotated with a simple force, but can be overcome when rotated strongly.

[0041] 25 and 26 are diagrams showing a sixth embodiment of a replacement container according to the present invention. In this embodiment, as shown in Fig. 26, the circular lid portion 25 of the spout 20 is configured to be placed on the edge 52a of the opening 50A, similarly to the second and fourth embodiments. As shown in Fig. 26, the lid portion 25 has a stepped structure including a lower wall 25A that fits into the opening 50A and an upper wall 25B that is placed on the edge 52a of the opening 50A, and a pair of protrusions 25d are formed on the opposing outer periphery edges of the lower wall 25A.

[0042] Each protrusion 25d is engaged with each notch 52d of the container body 50 shown in Fig. 22, and the spout 20 can be attached to and detached from the container body by rotating the spout 20, as in the above-described fifth embodiment. In this configuration, when the lid 25 is fixed to the opening, as shown in Fig. 25, the lower wall 25A fits into the opening 50A, and the periphery of the upper wall 25B abuts on the edge 52a of the opening 50A, so that the opening 50A is closed by the lid 25. In the configuration of this embodiment, the sealing performance when closed is improved, and the number of parts is reduced, making it easy to replace. In addition, in this embodiment, by forming a protrusion as shown in Figures 21 and 22, it is possible to configure the cover so that it will not come off even if it is rotated with a simple force.

[0043] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be practiced in various modified forms without departing from the gist of the present invention.

[0044] For example, the shape and size of the pouch pack and the mounting position of the spout can be modified as appropriate, and the shape and size of the container body can be modified accordingly. The configuration of the dispensing pump fixed to the spout is not particularly limited, and it may be one that dispenses a predetermined amount of contents with one press, or one that dispenses the contents in a mist, or even an air-introducing type dispensing pump may be fixed. The engaging and disengaging means may be a structure provided only on the lid side, and the configuration can be modified as appropriate, such as by screwing. [Explanation of symbols]

[0045] 1 Replacement container 10 pouch pack 20 Spout 22 Spout 25 Lid 50 Container body 50A opening 55,65 Engagement and disengagement means 80 Injection pump

Claims

1. A replacement container containing a pouch pack, the replacement container having a pouch pack attached with a spout having a spout, a spout pump attached to the spout, and a container body that replaceably contains the pouch pack, The spout is formed with a lid portion that closes an opening of the container body through which the pouch pack is inserted and removed, The container body is provided with an engagement / disengagement means for detachably engaging the lid with respect to the opening, The replacement container is characterized in that the engagement / detachment means is provided at the upper end of the side wall that defines the opening of the container body, and has a plurality of inverted claw spring portions with notched grooves formed along the vertical direction of the container body, and when the lid portion is attached or detached, the engagement / detachment means elastically deforms to engage or detach the lid portion.

2. The refillable container according to claim 1, characterized in that a step is provided on the inside of a side wall that defines the opening of the container body, so that when the opening is closed with the lid portion of the spout, the lid portion is supported so as to be approximately flush with the edge of the side wall.

3. The refill container according to claim 1 , wherein the lid is supported by an edge of the side wall when closing the opening.

4. A replacement container containing a pouch pack, the replacement container having a pouch pack attached with a spout having a spout, a spout pump attached to the spout, and a container body that replaceably contains the pouch pack, The spout is formed with a lid portion that closes an opening of the container body through which the pouch pack is inserted and removed, The lid and the container are provided with an engaging / disengaging means for detachably engaging the lid with respect to the opening, The container body is cylindrical, and the lid portion of the spout is disk-shaped, The engaging and disengaging means is A pair of protrusions protruding in a radial direction from an outer circumferential edge of the lid portion; Arc-shaped grooves are formed along a circumferential direction at opposing positions on an inner edge of the opening of the container body; a notch formed in a portion of an upper wall of the arc-shaped groove; having This replacement container is characterized in that the container body and spout are rotated relative to each other with the protrusion fitted into the cutout, and the protrusion engages with the arc-shaped groove, allowing the lid to be removably attached and detached from the opening.

5. a protrusion formed in the vicinity of the notch and protruding toward the arc-shaped groove; a climbing protrusion formed on the protrusion of the lid portion, the climbing protrusion climbing over the protrusion when the protrusion and the arc-shaped groove are engaged with each other; 5. The refill container according to claim 4, further comprising:

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