Adapter for container, container including adapter for container, and container with cap

Abstract

To provide an adapter for a container capable of fitting a container body with an adapter body firmly.SOLUTION: An adapter for a container includes: an adapter body 20 which is fitted in a fitting part 13 formed on a peripheral edge of an opening of a container body 10, and in which an engagement part 21a engaged with a cap is provided; and a seal body 40 interposed in a gap between the fitting part 13 and the adapter body 20. The seal body 40 is stored in a gap formed at least from above the fitting part 13 across the lateral side, and covers the side part from above the fitting part 13.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a container adapter, a container with a container adapter, and a container with a cap. [Background technology]

[0002] There is known a container in which an adapter body for attaching a cap is attached to the opening of a can that contains contents. For example, Patent Document 1 discloses a container that includes a can having a curled portion where the periphery of the opening is folded outward, and a plastic adapter body that fits onto the curled portion with a packing interposed therebetween. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] WO 03 / 103849 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the container disclosed in Patent Document 1, the packing is provided only above the curled portion, and the fitting strength between the curled portion of the can and the adapter body is not sufficiently increased. If the fitting strength is insufficient, the cap and the adapter body will rotate relative to the can when the cap is screwed onto the adapter body, which causes a problem that the cap cannot be securely fastened.

[0005] The present disclosure has been made to solve the problems described above, and aims to provide a container adapter that can firmly fit the container body and the adapter body, a container equipped with a container adapter, and a container with a cap. [Means for solving the problem]

[0006] The container adapter according to the present disclosure includes an adapter body provided with an engagement portion that engages with a fitting portion formed on the periphery of the opening of the container body and engages with a cap, and a seal body disposed in a gap between the fitting portion and the adapter body. The seal body is accommodated in the gap formed at least from above to the sides of the fitting portion, and covers the upper part to the sides of the fitting portion.

[0007] In addition, a container equipped with a container adapter according to the present disclosure comprises the above-mentioned container adapter and a container body having a storage space for storing contents and having a fitting portion that fits with the adapter body on the periphery of the opening that opens up the storage space.

[0008] A capped container according to the present disclosure includes a container having the above-mentioned container adapter, and the cap that engages with the engagement portion formed on the adapter body. Effect of the Invention

[0009] According to the present disclosure, it is possible to provide a container adapter that enables a container body and an adapter body to be firmly fitted together, a container equipped with a container adapter, and a container with a cap. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is an exploded view of a capped container according to an embodiment. [Diagram 2] 1 is a side view of a capped container according to an embodiment. [Diagram 3] 3 is a cross-sectional view of a container equipped with a container adapter taken along the cross-sectional line III-III in FIG. 1. [Figure 4] 4 is an exploded cross-sectional view of a container equipped with the container adapter shown in FIG. 3. [Diagram 5] 4 is a cross-sectional view of a container equipped with a container adapter taken along the cross-sectional line VV in FIG. 3. [Figure 6] 1 is a plan view showing a packing before attachment to a container adaptor according to an embodiment. FIG. [Figure 7]4 is a cross-sectional view showing a state in which a cap not having a dispensing mechanism is attached to a container equipped with the container adapter shown in FIG. 3. [Figure 8] FIG. 4 shows the results of measuring the torque when the adapter body shown in FIG. 3 rotates freely relative to the container body, where (a) is a graph showing the results when stored at room temperature, and (b) is a graph showing the results when stored in an environment of 40° C. [Figure 9] 13A and 13B are plan views showing other examples ((a) and (b)) of the packing for the container adaptor. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, a container adaptor, a container equipped with a container adaptor, and a capped container according to preferred embodiments of the present disclosure will be described with reference to the drawings.

[0012] As shown in Figures 1 and 2, a capped container 1 according to an embodiment of the present disclosure comprises a container body 10 for containing contents, an adapter body 20 attached to the container body 10, a cap 30 having a discharge mechanism for discharging the contents contained in the container body 10, and a gasket 40 (Figure 3) as a sealing body interposed between the container body 10 and the adapter body 20.

[0013] Here, to facilitate the explanation of the capped container 1, the up-down direction of the capped container 1 standing via the contact portion 11a as shown in Fig. 1 is defined as the up-down direction of the capped container 1 as it is, and will be used appropriately in the following explanation. Also, when the capped container 1 is viewed in plan, as shown in Fig. 5, in the radial direction of the circular container body 10, the direction toward the center C is defined as the inward direction, and the direction away from the center is defined as the outward direction, and will be used appropriately in the following explanation.

[0014] The container body 10 is a can-shaped product of a metal such as aluminum or tinplate. As shown in FIG. 1, the container body 10 has a cylindrical body 11 having an abutment portion 11a at one end that abuts against a table, shelf, or the like, and a tapered portion 12 that is connected to the body 11 and gradually reduces in diameter toward the top. The container body 10 has a storage space 10a formed therein for storing contents. The contents stored in the container body 10 are not particularly limited in type as long as they are liquid, such as shampoo, body soap, or lotion. At the top end of the container body 10, as shown in FIG. 5, a circular opening 10b is provided when viewed from above. At the periphery of the opening 10b, a curled portion 13 that is folded outward and curled into a circle is formed around the entire circumference, as shown in FIG. 4. That is, the opening 10b of the container body 10 is defined by the inward-facing portion of the curled portion 13, i.e., the inner portion of the curled portion 13.

[0015] As shown in Fig. 4, the adapter body 20 has a disk portion 22 with an opening 22a formed in the center, a cylindrical portion 21 standing upward from the upper surface, which is the first surface of the disk portion 22, and a first tube portion 23, a second tube portion 24, and a third tube portion 25 standing downward from the lower surface, which is the second surface of the disk portion 22. The first tube portion 23, the second tube portion 24, and the third tube portion 25 are each cylindrical. The adapter body 20 is made of synthetic resin such as polypropylene or polyethylene, and each part is molded integrally. When the adapter body 20 is viewed from above, the centers of the cylindrical portion 21, the first tube portion 23, the second tube portion 24, and the third tube portion 25 are on the center line CL and are aligned with each other.

[0016] The disk portion 22 has a shape in which a circular opening 22a is formed at the center of a disk perpendicular to the up-down direction. The disk portion 22 connects the cylindrical portion 21, the first tube portion 23, the second tube portion 24, and the third tube portion 25, which are erected in the up-down direction, to each other. The disk portion 22 functions as a top plate portion that connects the upper ends of the first tube portion 23, the second tube portion 24, and the third tube portion 25, which are erected downward from the lower surface, to each other.

[0017] The cylindrical portion 21 stands upward from the periphery of the opening 22a of the disk portion 22. A hollow portion 21b defined by the inner peripheral surface of the cylindrical portion 21 communicates with the opening 22a of the disk portion 22. A male thread 21a is formed on the outer peripheral surface of the cylindrical portion 21. The male thread 21a functions as an engagement portion for engaging with a cap 30 having a discharge mechanism shown in FIG.

[0018] The first cylindrical portion 23 is erected downward from the periphery of the opening 22a of the disk portion 22. The hollow portion 23a defined by the inner peripheral surface of the first cylindrical portion 23 is connected to the opening 22a of the disk portion 22. As a result, in the adapter body 20, a hollow portion penetrating in the vertical direction is formed by the hollow portion 21b of the cylindrical portion 21, the opening 22a of the disk portion 22, and the hollow portion 23a of the first cylindrical portion 23. In addition, a protrusion portion 23b that engages with the curl portion 13 of the container body 10 is formed on the outer peripheral surface of the first cylindrical portion 23. When the first cylindrical portion 23 is cut in the radial direction, the protrusion portion 23b has a cross-sectional shape that gradually protrudes outward as it progresses upward, and the amount of outward protrusion gradually decreases as it progresses upward from the top. The protrusion 23b is pressed by the curled portion 13 of the container body 10 inserted between the first cylindrical portion 23 and the second cylindrical portion 24, elastically deforming the first cylindrical portion 23 inward, and when the curled portion 13 passes the top of the protrusion 23b, the first cylindrical portion 23 elastically returns to its original shape and abuts against the curled portion 13, thereby fixing it. This causes the curled portion 13 to fit into the recess 27 formed in the adapter body 20. In this way, the curled portion 13 functions as a fitting portion of the container body 10 that fits into the recess 27.

[0019] The second cylindrical portion 24 has a larger diameter than the first cylindrical portion 23 and surrounds the first cylindrical portion 23 with a radial gap between them. As a result, a recess 27 that has an annular shape when viewed from below is formed in the adapter body 20, as shown in Figures 4 and 5. As shown in Figure 4, the recess 27 is defined by the outer surface of the first cylindrical portion 23, the lower surface of the disk portion 22, and the inner surface of the second cylindrical portion, with the lower surface of the disk portion 22 serving as the bottom surface.

[0020] The third cylindrical portion 25 has a larger diameter than the second cylindrical portion 24, and surrounds the second cylindrical portion 24 with a radial gap between them. The third cylindrical portion 25 stands downward from the outer edge of the disk portion 22. The third cylindrical portion 25 has a protruding portion 25a that protrudes outward from an upper portion of the outer circumferential surface. When the third cylindrical portion 25 is cut in the radial direction, the protruding portion 25a has a semicircular cross-sectional shape, and is provided in a ring shape with a diameter portion connected to the outer surface of the third cylindrical portion 25.

[0021] The adapter body 20 also has a rib 26 between the second tubular portion 24 and the third tubular portion 25. The rib 26 connects the outer surface of the second tubular portion 24, the lower surface of the disk portion 22, and the inner surface of the third tubular portion, as shown in Fig. 3 and Fig. 4. When the adapter body 20 is viewed from above, as shown in Fig. 5, the rib 26 is formed along the radial direction of the second tubular portion 24, and is provided at a total of four locations at intervals of, for example, a central angle of 90° with respect to the center C of the adapter body 20.

[0022] The packing 40 shown in Fig. 3 and Fig. 4 is, for example, punched into a circular shape from a rubber sheet. As shown in Fig. 6, the packing 40 has a circular opening 40a formed in the center and a rectangular cutout 41 formed from the outer edge 40b toward the center C1. The cutout 41 is formed from the outer edge 40b of the packing toward the center C1 to a position that reaches, for example, half the length to the opening 40a. The cutouts 41 are formed at a total of eight locations at intervals of 45° with respect to the center C1 of the packing 40.

[0023] Here, if the diameter of the opening 40a of the packing 40 is D1, as shown in FIG. 4, the diameter D1 is the same as the diameter D3 of the opening 10b of the container body 10. If the outer diameter of the packing 40 is D2, the outer diameter D2 is greater than the sum of the diameter D3 of the opening 10b of the container body 10 and twice the diameter (width of the curled portion 13) D4 of the curled portion 13. Therefore, when the packing 40 before being accommodated in the recess 27 of the adapter body 20 is placed on the curled portion 13 of the container body 10, a part of the packing 40 protrudes outward from the curled portion 13. As shown in FIG. 3, the packing 40 is interposed in a bent state in the gap between the recess 27 of the adapter body 20 and the curled portion 13 accommodated in the recess 27. The bent packing 40 has an L-shaped cross section when cut in the radial direction, and covers the upper and outer parts of the curled portion 13. That is, the packing 40 is provided along the lower surface of the disk portion 22 and the inner surface of the second cylindrical portion 24.

[0024] The thickness t1 (FIG. 4) of the packing 40 has a dimension that allows the packing 40 to be compressed by being sandwiched between the adapter body 20 and the curled portion 13 above and to the sides of the curled portion 13. Specifically, the thickness t1 of the packing 40 is smaller than the shortest gap G1 between the upper end of the curled portion 13 and the lower surface of the disk portion 22 and the shortest gap G2 between the side end of the curled portion 13 and the inner peripheral surface of the third cylindrical portion 25, as shown in FIG. 3. As another condition for compressing the packing 40 to the side of the curled portion 13, as shown in FIG. 4, the thickness t1 of the packing satisfies t1>W-D4, where W is the width of the recess 27 formed in the adapter body 20 and D4 is the diameter of the curled portion 13 (the width of the curled portion 13). The thickness t1 is generally 0.6 mm to 2 mm, and preferably 0.8 to 1.4 mm. As a result, the packing 40 is accommodated in a compressed state between the adapter body 20 and the curled portion 13, and the curled portion 13 of the container body 10 and the recess 27 of the adapter body 20 can be tightly fitted together. Therefore, a large force is required to rotate the adapter body 20 relative to the container body 10. Note that the thickness t1 of the packing 40 can be set to a different value depending on various conditions such as the size of the capped container 1, within a range that satisfies the above conditions.

[0025] As shown in FIG. 1, the cap 30 having the discharge mechanism has a cap body 31 screwed to the adapter body 20, and a discharge mechanism attached to the cap body 31 and discharging the contents contained in the container body 10. The discharge mechanism includes a head 32 that moves up and down by the pressure of the user and the elastic force of a spring (not shown), and a suction tube 34 that is inserted into the container body 10 and sucks in the contents. A female screw 31a is formed in the cap body 31. As shown in FIG. 2, the cap body 31 of the cap 30 is placed on the cylindrical portion 21 of the adapter body 20, and the cap body 31 is rotated to tighten the female screw 31a to the male screw 21a. In this manner, the cap 30 is attached to the adapter body 20.

[0026] When a user presses down on the head 32 of the cap 30 attached to the adapter body 20, the pressure inside the cap 30 increases, and the contents are discharged from the nozzle 33 formed in the head 32. The pressed-down head 32 returns to its original position due to the elastic force of a spring (not shown). The cap 30 has a discharge mechanism that repeats this operation to discharge the contents contained in the container body 10.

[0027] The configuration of the capped container 1 has been described above, but in the following description, a configuration including the adapter body 20 and the packing 40 as shown in Figures 3 and 4 may be referred to as a container adapter 60. Also, a configuration including the container body 10 and the container adapter 60 may be referred to as a container 50.

[0028] Next, the procedure for assembling the container 50 described above will be described. First, the adapter body 20 is turned upside down, and the packing 40 is aligned with and pressed into the recess 27 of the adapter body 20 shown in Fig. 4. This temporarily fixes the packing 40 to the adapter body 20. The packing 40 temporarily fixed in this manner does not need to be pressed in until it completely matches the recess 27 (particularly the second tubular portion 24) as long as it does not shift during the subsequent operation of fitting the curled portion 13.

[0029] Next, the curled portion 13 is fitted into the recess 27 to which the packing 40 is temporarily fixed. At this time, the inner side of the curled portion 13 before being inserted into the recess 27 comes into contact with the protrusion 23b, elastically deforming the first tubular portion 23 inward. Eventually, the curled portion 13 passes the top of the protrusion 23b, so that the packing 40 is bent in an L-shape along the wall surface that defines the recess 27, and the first tubular portion 23 elastically returns to its original state, pressing the curled portion 13 inserted into the recess 27 outward. This causes the adapter body 20 and the curled portion 13 of the container body 10 to fit together. In this way, the container 50 can be assembled by attaching the container adapter 60 to the container body 10. Note that the assembly procedure for the container 50 is only an example. As another assembly procedure, for example, the container 50 may be assembled by placing the gasket 40 on the curled portion 13 of the container body 10 and fitting the curled portion 13 with the gasket 40 placed thereon into the recess 27 formed in the adapter body 20.

[0030] In order to dispense the contents contained in container 50, as shown in FIG. 2, the female thread 31a of cap 30 having a dispensing mechanism is screwed into the male thread 21a of cylindrical portion 21, and cap 30 is tightened and attached to container 50.

[0031] On the other hand, when, for example, only the container 50 is sold without the cap 30 having a discharge mechanism attached, or when the contents are put into the container 50 and sold, a cap 70 having a female thread 70a is fastened and attached to the container 50 as shown in Fig. 7. Unlike the cap 30 shown in Fig. 1, this cap 70 does not have a discharge mechanism, and a flat upper plate portion 71 covers the hollow portion 21b of the container 50. Thus, by attaching the cap 70 to the container 50, it is possible to prevent the contents in the container 50 from leaking out. Note that the cap 30 and the cap 70 have female threads that screw into the container 50, and therefore can be freely attached and detached to the container 50.

[0032] According to this embodiment, the packing 40 interposed between the container body 10 and the adapter body 20 is bent into an L-shape and arranged to cover the upper and outer parts of the curled portion 13 in a compressed state. This allows the outer part as well as the upper part of the curled portion 13 to be tightly adhered to the wall surface of the recess 27 of the adapter body 20 via the packing 40. In other words, the outer part of the curled portion 13 can be tightly adhered to the inner circumferential surface of the second tubular portion 24 via the packing 40. This allows the container body 10 and the adapter body 20 to be firmly fitted together.

[0033] In addition, a rib 26 connected to the lower surface of the disk portion 22 and the inner surface of the third cylindrical portion is formed on the outside of the second cylindrical portion 24 to which the curled portion 13 is in close contact from the inside. Therefore, the force pressing outward from the curled portion 13 through the packing 40 on the second cylindrical portion 24 is transmitted to the disk portion 22 and the third cylindrical portion 25 through the rib 26. In this way, since the second cylindrical portion 24 is supported from the outside by the rib 26, it is possible to suppress the phenomenon that the degree of contact between the curled portion 13 and the second cylindrical portion 24 through the packing 40 decreases over time, and the container body 10 and the adapter body 20 can be maintained in a firmly fitted state.

[0034] In order to confirm that the container body 10 and the adapter body 20 were firmly fitted together and that this state of being firmly fitted was maintained, the container 50 to which the adapter body 20 was attached was fixed to a torque meter, the cap 30 was tightened onto the adapter body 20, and the torque at which the adapter body 20 rotated together with the cap 30 was measured. The torque was measured immediately after the container body 10 and the adapter body 20 were fitted together (hereinafter, sometimes simply referred to as immediately after fitting) and after storage for a predetermined period of time at room temperature and at 40°C. The measurement results are shown in Figures 8(a) and 8(b). In the figures, the points marked with "-" are points that were not measured. If the measured torque value exceeds 500 N·cm, the test is terminated and the measurement result is recorded as "500UP". In addition, since a torque of more than 400 N·cm is generally not applied during the process of tightening cap 30 (Figure 1) or cap 70 (Figure 7), if a torque of 400 N·cm or more is measured, it is determined that container body 10 and adapter body 20 are firmly fitted together.

[0035] As shown in FIG. 8(a), the torque measured immediately after engagement was 500 N·cm or more for four test pieces, and 497 N·cm for the remaining test piece. Thus, a torque of 400 N·cm or more was measured for all test pieces immediately after engagement, and it can be determined that the container body 10 and the adapter body 20 are firmly engaged. In addition, when measured one week, two weeks, one month, two months, and three months after engagement under room temperature storage, a torque of 500 N·cm or more was measured for all five test pieces. From this result, it was confirmed that the container body 10 and the adapter body 20 can be maintained in a firmly engaged state even when the container 50 is stored at room temperature.

[0036] 8(b), the torque was measured one week after engagement, 415.7 N·cm after two weeks, 449.2 N·cm after one month, 482.7 N·cm after two months, and 465.6 N·cm after three months when stored at 40° C. These results confirmed that the container body 10 and the adapter body 20 could maintain a firmly engaged state even when stored at 40° C.

[0037] 6, the packing 40 can be smoothly folded into an L shape when accommodated in the recess 27 because the notch 41 is formed from the outer edge 40b of the packing 40 toward the center C1. Also, the folded portions can be prevented from overlapping each other, resulting in excellent accommodation of the packing 40 in the recess 27 and excellent adhesion of the curled portion 13 to the second tubular portion 24.

[0038] In addition, the third cylindrical portion 25 has a protruding portion 25a protruding outward from the upper portion of the outer circumferential surface thereof. This allows a guide portion that assists in the transfer of the adapter body 20 or the container 50 to be hooked onto the protruding portion 25a during the manufacturing process of the container 50, etc.

[0039] This invention is not limited to the above embodiment, and various modifications and applications are possible. In the above embodiment, the notch 41 formed in the packing 40 is described as being rectangular, but the shape of the notch is not particularly limited. Also, the number of locations where the notch is provided can be any number as long as the packing can be smoothly folded. For example, as in the packing 140 shown in FIG. 9(a), a V-shaped notch 141 may be formed with the apex of the V facing the center C2 of the packing 140. The notches 141 are formed at a total of six locations, for example, at intervals of 60° with respect to the center C2 of the packing 140.

[0040] 9(b), the packing 240 may have a configuration including an annular portion 241 and a plurality of semicircular portions 242 in which the R portion faces outward and is connected to the outer edge of the annular portion 241. The semicircular portions 242 are formed at a total of six locations, for example, at intervals of 60° with respect to the center C3 of the packing 240. This allows a notch 243 to be formed between adjacent semicircular portions 242. The semicircular portions 242 cover the outer side of the curl portion 13, and at least one of the semicircular portions 242 and the rib 26 may be arranged to overlap in the circumferential direction. The semicircular portions 242 may also be arranged in the same manner as the rib 26, and may be arranged at intervals of a central angle of 90°, similar to the rib 26 shown in FIG. 5. This allows the degree of close contact between the curl portion 13 and the second tubular portion 24 to be maintained through the semicircular portions 242. The notch may also be a structure in which only a cut is made without cutting out the annular portion. The packing may be in a ring shape without a notch, or may have a mixture of notches of different shapes.

[0041] In addition, although the packing 40 has been described as covering the upper and outer sides of the curled portion 13, it may also have a configuration that covers the inner side of the curled portion 13. In this case, a notch may be provided in the inner edge of the packing as well, and the packing may be bent inward and outward so as to have a channel-shaped cross section within the recess 27.

[0042] The number and arrangement of the ribs 26 provided on the outside of the second tubular portion 24 can be changed as appropriate depending on the size and use of the container 50. The number of ribs 26 may be one or more. When two or more ribs 26 are arranged, they may be arranged at equal angular intervals with respect to the center of the adapter body 20 when the adapter body 20 is viewed in plan from above, or may be arranged at different intervals.

[0043] Also, various types of caps can be attached to the adapter body 20, and may be the cap 30 shown in Fig. 1 having a discharge mechanism, the cap 70 shown in Fig. 7 that covers the hollow portion 21b of the container 50 and seals the inside of the container 50, or, for example, a cap having a hole in a part thereof from which the contents can be discharged. Also, although a pump-type discharge mechanism has been described as an example of the discharge mechanism possessed by the cap 30, various types of discharge mechanisms can be attached as long as they can take out the contents of the container body 10.

[0044] Furthermore, the material of the packing 40 can be appropriately selected from materials that are compressed and elastically deformed by the adapter body 20 and the curled portion 13, and that strongly adhere to the adapter body 20 and the curled portion 13. That is, the packing 40 is not limited to being made of rubber such as nitrile rubber (NBR), ethylene propylene rubber (EPDM), or silicone rubber, and can be made of resin such as urethane, or formed from a composite material of rubber and resin.

[0045] Various embodiments and modifications of the present disclosure are possible without departing from the broad spirit and scope of the present disclosure. The above-described embodiments are for explaining the present disclosure and do not limit the scope of the present disclosure. That is, the scope of the present disclosure is indicated by the claims, not the embodiments. Various modifications made within the scope of the claims and the scope of the disclosure equivalent thereto are considered to be within the scope of the present disclosure.

[0046] (Additional Note) (Appendix 1) an adapter body provided with an engagement portion that engages with a fitting portion formed on the periphery of the opening of the container body and engages with the cap; a seal body interposed in a gap between the fitting portion and the adapter body, The seal body is accommodated in the gap formed at least from above to the side of the fitting portion and covers the upper part to the side of the fitting portion. Container adapter.

[0047] (Appendix 2) The adapter body is formed with a recess having an annular shape in a plan view, the recess being adapted to be fitted into the fitting portion, The gap is formed between the fitting portion and the recess. 2. An adapter for a container as described in appendix 1.

[0048] (Appendix 3) the adapter body includes a first cylindrical portion, a second cylindrical portion having a larger diameter than the first cylindrical portion and surrounding the first cylindrical portion, and a top plate portion connecting an end of the first cylindrical portion and an end of the second cylindrical portion; The recess is defined by an outer surface of the first cylindrical portion, a lower surface of the top plate portion, and an inner surface of the second cylindrical portion, with the top plate portion serving as a bottom surface. 10. An adapter for a container as described in appendix 2.

[0049] (Appendix 4) The sealing body forms an annular sheet body when not housed in the gap, The seal body has a notch formed from an outer edge toward an inner side in a radial direction. 4. An adapter for a container according to any one of claims 1 to 3.

[0050] (Appendix 5) The seal body is bent at the recess and provided along at least the lower surface of the top plate portion and the inner surface of the second cylindrical portion. 5. An adapter for a container as described in appended claim 4.

[0051] (Appendix 6) the adapter body further includes a third cylindrical portion having a larger diameter than the second cylindrical portion, surrounding the second cylindrical portion, and having an end connected to the top plate portion; A rib is formed between the second cylindrical portion and the third cylindrical portion to reinforce the second cylindrical portion. 4. An adapter for a container as described in appendix 3.

[0052] (Appendix 7) The rib extends in the radial direction of the second cylindrical portion. 7. An adapter for a container as described in appended claim 6.

[0053] (Appendix 8) The adapter body has a protrusion that protrudes outward from the outer surface of the third cylindrical portion. 8. An adapter for a container according to claim 6 or 7.

[0054] (Appendix 9) An adapter for a container according to any one of appendices 1 to 8; The container body has a storage space for storing contents, and has the fitting portion that fits with the adapter body on the periphery of the opening that opens the storage space. A container with a container adapter.

[0055] (Appendix 10) The container body is made of metal, The fitting portion has a curled portion formed by folding back the periphery of the opening outward. A container equipped with the container adapter described in appendix 9.

[0056] (Appendix 11) A container equipped with a container adapter according to appendix 9 or 10; The cap engages with the engaging portion formed on the adapter body. Container with cap.

[0057] (Appendix 12) The cap has a discharge mechanism for discharging the contents contained in the container body. A container with a cap as described in appendix 11. [Explanation of symbols]

[0058] 1 Container with cap, 10 Container body, 10a Storage space, 10b Opening, 11 Body, 11a Abutment portion, 12 Reduced diameter portion, 13 Curl portion, 20 Adapter body, 21 Cylindrical portion, 21a Male thread, 21b Hollow portion, 22 Disk portion, 22a Opening, 23 First cylindrical portion, 23a Hollow portion, 23b Protrusion portion, 24 Second cylindrical portion, 25 Third cylindrical portion, 25a Protrusion portion, 26 Rib, 27 Recess, 30 Cap, 31 Cap body, 31a Female thread, 32 Head portion, 33 Nozzle, 34 Suction pipe, 40 Gasket, 40a Opening, 40b Outer edge, 41 Notch, 50 Container, 60 Container adapter, 70 Cap, 70a Female thread, 71 Upper plate portion, 140 Packing, 141 notch, 240 packing, 241 annular portion, 242 semicircular portion, 243 notch, C1, C2, C3 centre, CL centre line, D1, D3, D4 diameter, D2 outside diameter, G1, G2 gap, t1 thickness, W width.

Claims

1. an adapter body provided with an engagement portion that engages with a fitting portion formed on the periphery of the opening of the container body and engages with the cap; a seal body interposed in a gap between the fitting portion and the adapter body, The seal body is accommodated in the gap formed at least from above to the side of the fitting portion and covers the upper part to the side of the fitting portion. Container adapter.

2. The adapter body is formed with a recess having an annular shape in a plan view, the recess being adapted to be fitted into the fitting portion, The gap is formed between the fitting portion and the recess.

2. The container adaptor according to claim 1.

3. the adapter body includes a first cylindrical portion, a second cylindrical portion having a larger diameter than the first cylindrical portion and surrounding the first cylindrical portion, and a top plate portion connecting an end of the first cylindrical portion and an end of the second cylindrical portion; The recess is defined by an outer surface of the first cylindrical portion, a lower surface of the top plate portion, and an inner surface of the second cylindrical portion, with the top plate portion serving as a bottom surface.

3. The container adaptor according to claim 2.

4. The sealing body forms an annular sheet body when not housed in the gap, The seal body has a notch formed from an outer edge toward an inner side in a radial direction.

2. The container adaptor according to claim 1.

5. The seal body is bent at the recess and provided along at least the lower surface of the top plate portion and the inner surface of the second cylindrical portion. The container adaptor according to claim 3.

6. the adapter body further includes a third cylindrical portion having a larger diameter than the second cylindrical portion, surrounding the second cylindrical portion, and having an end connected to the top plate portion; A rib is formed between the second cylindrical portion and the third cylindrical portion to reinforce the second cylindrical portion. The container adaptor according to claim 3.

7. The rib extends in a radial direction of the second cylindrical portion. The container adaptor according to claim 6.

8. The adapter body has a protrusion that protrudes outward from an outer surface of the third cylindrical portion. The container adaptor according to claim 6.

9. A container adaptor according to any one of claims 1 to 8; The container body has a storage space for storing contents, and has the fitting portion that fits with the adapter body on the periphery of the opening that opens the storage space. A container with a container adapter.

10. The container body is made of metal, The fitting portion has a curled portion formed by folding back the periphery of the opening outward. A container comprising the container adapter according to claim 9.

11. A container provided with the container adapter according to claim 9; The cap engages with the engaging portion formed on the adapter body. Container with cap.

12. The cap has a discharge mechanism for discharging the contents contained in the container body. The capped container according to claim 11.

Images