Refill container and double container containing the same

Abstract

To provide a refill container capable of sealing and holding contents without requiring a dedicated filling facility, and a double container containing the refill container.SOLUTION: A refill container 1, including a container body 10 filled with contents, allows the contents to be taken out through an opening formed in the upper end of the container body 10, and comprises an annular body 2 provided in the upper end of the container body 10 in a fitting manner and a sealing material 26 provided at the upper end of the annular body 2 in a peel manner and forming an opening for taking out the contents filled in the container body 10 on the inner side of the annular body 2 by the peeling. The sealing material 26 includes an outer peripheral section 26a and a central section 26b covering the opening on the inner side of the outer peripheral section 26a and positioned below the outer peripheral section 26a.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a refill container filled with creamy or viscous cosmetics, medicines, detergents, etc., and a double container housing the refill container.

[0002] Jar-type containers, each consisting of a cylindrical container body with a bottom and a lid that is screwed onto the container body, are widely used as containers for storing cream-like contents such as face creams and hair styling creams. As shown in Patent Document 1, one such jar-type container is known, in which the container body is a double-layered container consisting of an inner container filled with the contents and an outer container that detachably houses the inner container, allowing consumers to remove the inner container and replace it with a new inner container (refill container) when the contents are used up. Because the outer container of such a jar-type double-layered container using a refill container can be reused, it is possible to add value to the product by using an outer container with excellent decorativeness and design, and it is also possible to reduce waste, making its use anticipated. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-195484 Summary of the Invention [Problem to be solved by the invention]

[0004] The opening of the refill container used in such a jar-type double container is usually provided with a seal material to provide a tight seal during distribution, handling, etc. Sheets made of plastic film or metal foil are used as sealing materials, but this has the problem of requiring dedicated filling equipment to fill the contents into the inner container and to attach the sheet to the upper opening of the inner container.

[0005] Therefore, the present invention aims to solve the above problems and to provide a refill container that can keep the contents sealed without requiring dedicated filling equipment, and a double container that houses the refill container. [Means for solving the problem]

[0006] The refill container of the present invention, which has been developed to achieve the above object, is a refill container that has a container body filled with a content, and the content can be taken out through an opening formed at the top end of the container body, By corking The container comprises an annular body arranged to be engageable with the container body, and a sealing material removably attached to the upper surface of the annular body, which forms an outlet for the contents filled in the container body on the inside of the annular body when the sealing material is peeled off, the sealing material comprising an outer periphery and a central portion which covers the outlet on the inside of the outer periphery and is positioned below the outer periphery, the annular body has at least one pair of levers held hanging down in opposing positions, and each of the pair of levers has an oval protrusion on its outer surface which acts as a male screw and also serves as an anti-slip device. The annular body has a top wall that can abut against the tip of the upper end of the container body, and a hanging wall that can be fitted onto the outer surface of the upper end. It is characterized by:

[0007] In the refill container of the present invention, the sealing material is ,before The sealing material is removably fixed to the upper surface of the annular body, and it is preferable that the annular body has on its upper surface a flat surface portion that horizontally adheres the sealing material, and an inclined surface portion that is connected to the inner end of the flat surface portion and inclines the sealing material radially inward toward the flat surface portion so that it is lower than the flat surface portion and adheres the sealing material.

[0008] In the refill container of the present invention, the annular body has the flat surface on the outer edge of the sealing material. Department and same side Or the flat surface Department It is preferable that the sealing portion has a surface higher than the surface of the sealing portion.

[0010] The present invention also provides a double container that houses the refill container, characterized in that it comprises a main container that houses the refill container in its internal space through an upper open end provided in a cylindrical portion, and a lid that covers the cylindrical portion and the upper open end and keeps the internal space sealed. [Effects of the Invention]

[0011] According to the refill container of the present invention, an annular member that serves as a cap can be fitted and attached to the upper end, so that the container can be sealed without requiring dedicated filling equipment.

[0012] In addition, according to the refill container of the present invention, a sealing material that can be peeled off by fingers is provided on the upper surface of the annular body, so that when in use, an opening for removing the contents can be easily formed by simply peeling off the sealing material.

[0013] Furthermore, the sealing material is composed of an outer peripheral portion and a central portion located inside it, and the central portion that covers the opening for removing the contents is positioned lower than the outer peripheral portion.As a result, when the annular body is attached to the upper end of the container body of the refill container, for example by capping it, the central portion will bend upward due to an increase in internal pressure within the refill container, but it will not protrude above the annular body, and the upward bending of the sealing material suppresses an increase in internal pressure in the refill container, so there is no risk of the annular body coming off due to the internal pressure.

[0014] Furthermore, according to the refill container of the present invention, when the sealing material is provided on the upper surface of the annular body by insert molding, an inclined surface portion is provided on the inner side of the annular body and the sealing material is adhered to this inclined surface portion. Therefore, even if the annular body shrinks after insert molding, the sealing material can be recessed downward along the inclined surface portion, making the sealing material more flexible and effectively suppressing the increase in internal pressure of the container body when the annular body is fitted into the upper end of the container body of the refill container by capping.

[0015] Furthermore, with the double container of the present invention, when the contents are used up, the refill container can be removed from the main container while still hanging from the ring-shaped body, and replaced with a new one with the ring-shaped body attached to the upper end filled with the contents, allowing the main container to be used repeatedly, thereby reducing the volume of waste. [Brief explanation of the drawings]

[0016] [Figure 1] 1A and 1B are diagrams showing an embodiment of a refill container according to the present invention, in which FIG. 1A is a plan view and FIG. 1B is a front view. [Figure 2] 2(a) is a cross-sectional view taken along line AA of the refill container shown in FIG. 1, and FIG. 2(b) is a cross-sectional view taken along line BB. [Figure 3] 1A and 1B are diagrams showing one embodiment of a ring-shaped body provided at the upper end of a refill container according to the present invention, in which (a) is a plan view, (b) is a cross-sectional view at position CC in (a), and (c) is a bottom view. [Figure 4] 1A and 1B are diagrams showing an embodiment of a double container that houses and holds a refill container according to the present invention, in which (a) is a plan view and (b) is a front view. [Figure 5] 5(a) is a cross-sectional view of the double container shown in FIG. 4 taken along the line DD, and FIG. 5(b) is a cross-sectional view of the double container shown in FIG. 4 taken along the line EE. [Figure 6] 1A and 1B are a plan view and a front view, respectively, of a main container constituting a double container according to the present invention. [Figure 7] 7 is a front view showing a state in which the refill container shown in FIG. 1 is housed in the main container shown in FIG. 6. [Figure 8] (a) is a cross-sectional view showing another embodiment of a ring-shaped body provided at the upper end of a refill container that constitutes a double container according to the present invention, and (b) is a cross-sectional view of a refill container formed by fitting the ring-shaped body of (a) into the upper end. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that the axis O in the drawings is the central axis of the double container of the present invention, and the direction along the axis O is referred to as the "axial direction," and the direction perpendicular to the axis O is referred to as the "radial direction." FIG. 1 shows one embodiment of a refill container according to the present invention, with FIG. 1(a) being a plan view and FIG. 1(b) being a front view. FIG. 2(a) is a cross-sectional view of the refill container of FIG. 1 taken along line AA, and FIG. 2(b) is a cross-sectional view of the refill container taken along line BB. FIG. 3 shows an annular member provided at the upper end of a refill container according to the present invention, with FIG. 3(a) being a plan view, FIG. 3(b) being a cross-sectional view of line CC in FIG. 3(a), and FIG. 3(c) being a bottom view. FIG. 4 shows one embodiment of a double container according to the present invention, with FIG. 4(a) being a plan view and FIG. 4(b) being a front view. FIG. 5(a) is a cross-sectional view taken along line D-D in FIG. 4, and FIG. 5(b) is a cross-sectional view taken along line EE in FIG. 4. FIG. 6 shows a main container constituting a double container according to the present invention, with FIG. 6(a) being a plan view and FIG. 6(b) being a front view.

[0018] Reference numeral 1 denotes a refill container of the present invention, which comprises a container body 10 filled with a content, and an annular body 2 that is fitted to the upper end of the container body 10, preferably by capping. The annular body 2 can be fitted to the upper end of the refill container 1 by various methods, but the following description will be given as an example of a case where the annular body 2 is fitted to the upper end of the refill container 1 by capping.

[0019] The container body 10 is a cylindrical body with an open top and a bottom, and has a cylindrical peripheral wall 11 and a bottom wall 12 connected to the bottom end of the peripheral wall 11. In this embodiment, the peripheral wall 11 is shown as a cylindrical shape as an example, but it may have any shape as long as it can be filled and held with cream-like or jelly-like contents. Container body The material of 10 is not particularly limited, but for example, a synthetic resin such as polyethylene or polypropylene may be formed by injection molding, or a metal material may be press-molded to form a thin-walled metal container.

[0020] The annular body 2 has an opening 21 in the center, which is used as an opening for taking out the contents from the container body 10. do a top wall 23, a portion extending in the axial direction from the radially inner edge of the top wall 23, Container body 10 and a hanging wall 25 that hangs down in the axial direction from the radially outer edge of the top wall 23 and that can fit with the upper end of the main container 3.

[0021] A sealant 26 is provided on the top surface of the annular body 2 so as to cover the opening 21. The sealant 26 is capable of sealing the opening 21 while having a bonding strength that allows it to be pulled and peeled off with the fingers, and can be attached or welded to the top surface of the annular body 2 using a method such as P-sealing or insert molding, although the method is not particularly limited. The sealant 26 can be made of various materials such as synthetic resins such as polyethylene and polypropylene, as well as metal foil, and flexible materials are particularly preferred.

[0022] The hanging wall 24 has an annular rib 24a on its inner surface, and when the annular body 2 is pressed from above and plugged in a state in which the inner surface of the hanging wall 24 is in contact with the outer surface of the peripheral wall portion 11 of the refill container 1, the annular rib 24a Container body 10 The annular body 2 can be attached to the upper end of the container body 10 by being undercut-fitted into an annular rib 11a provided on the upper part of the peripheral wall portion 11.

[0023] The sealing material 26 is removably attached to the upper surface of the annular body 2 and comprises an outer peripheral portion 26a located radially outward and a central portion 26b located inside the outer peripheral portion 26a. As shown in Figures 2 and 3(b), the central portion 26b is recessed axially within the opening 21 and located lower than the outer peripheral portion 26a. When the annular body 2 is attached to the upper end of the container body 10 by plugging, the compressed air within the container body 10 pushes upward the axially recessed central portion 26b of the sealing material 26, thereby mitigating the increase in internal pressure of the container body 10 and preventing the plugging of the annular body 2 from loosening. The sealing material 26 shown by the two-dot chain line in Figure 2 is before being attached to the container body 10 by plugging. When the annular body 2 is attached by plugging, the sealing material 26 rises to the position shown by the solid line.

[0024] To facilitate peeling of the sealing material 26 by hand, it is preferable to form a grip by protruding a portion of the outer peripheral portion 26a radially outward, or to provide a non-welded portion (non-adhesive portion) on at least a portion of the outer peripheral portion 26a so that this portion can be used as a handle for peeling.

[0025] The hanging wall 25 has an annular rib 25a on its inner surface. When the refill container 1 having the annular body 2 at its upper end is inserted into the internal space of the main container 3 by capping as described below, the annular rib 25a is removably fitted in an undercut manner to an annular rib 36a provided on the outer surface of the locking wall 36 located at the upper end of the main container 3, thereby holding the refill container 1 within the main container 3.

[0026] The hanging wall 25 has a pair of levers 27 that hang down in the axial direction from its lower end at radially opposite positions. In this embodiment, one pair of levers 27 is provided on the hanging wall 25, but multiple pairs of levers 27 may be provided. The levers 27 serve as a clue for removing the refill container 1 with the annular body 2 fitted at the upper end when the contents in the refill container 1 are consumed and it needs to be replaced with a new one.

[0027] In this embodiment, the outer surface of the lever 27 is provided with a plurality of (two in the figure) oval projections 27a that are inclined to match the inclination of the spiral male screw 35a provided on the opening 35 of the main container body 3. These projections 27a not only function as male screws when attaching the lid body 4, but also as anti-slip devices when removing the refill container 1 together with the annular body 2.

[0028] 4 is a double container of the present invention that stores and holds a refill container 1, and includes the refill container 1 having the annular body 2 fitted to the upper end by stoppering as described above, a main container 3 that stores the refill container 1, and a lid 4 that is provided to cover the top of the main container 3. In addition, in this embodiment, a case where the double container is cylindrical is shown as an example, but it is not limited to this and various shapes such as an oval, square or polygonal shape can be used.

[0029] The main container 3 is a bottomed cylindrical body having an upper open end 30, and has a cylindrical tubular portion 31, a disk-shaped bottom wall portion 32 connected to the lower end of the tubular portion 31, and a holding portion 33 that forms the mouth of the main container 3 and is used to store and hold the refill container 1.

[0030] The holding portion 33 is formed by integrally molding a cylindrical peripheral wall portion 34 along the inner wall of the cylindrical portion 31, a mouth portion 35 extending in the axial direction from the upper end of the peripheral wall portion 34, a locking wall 36 extending in the axial direction from the upper end of the mouth portion 35, and a storage shell 37 connected to the lower end of the locking wall 36 and configured to cover and hold the outer periphery of the stored refill container 1. In this embodiment, the peripheral wall portion 34, the mouth portion 35, the locking wall 36, and the storage shell 37 that constitute the holding portion 33 are integrally molded, but they may also be formed separately.

[0031] The cylindrical portion 31 has a notch 31a on the inner edge of its upper end, and a protrusion 34a on the outer surface of the peripheral wall portion 34 engages with the notch 31a. The bottom wall portion 32 has a ring portion 32a extending in the axial direction, and an annular rib 32b on the inner surface of the ring portion 32a fits into a recess 37b on the outer surface of a ring portion 37a hanging down from the storage shell 37. This secures the holding portion 33 to the cylindrical portion 31 at two locations, the peripheral wall portion 34 and the storage shell 37, preventing the holding portion 33 from coming off the cylindrical portion 31 during handling, etc. In this embodiment, the cylindrical portion 31 and the holding portion 33 are formed separately, but they may also be formed integrally, in which case the structure of the main container body 3 can be simplified.

[0032] The material of the main container 3 is not particularly limited, but the cylindrical body 31 can be formed by injection molding or blow molding synthetic resin such as polyethylene or polypropylene, or metal, glass, etc.

[0033] The opening 35 has a smaller diameter than the inner diameter of the cylindrical portion 31 so that the outer peripheral surface of the lid 4 is flush with the outer peripheral surface of the cylindrical portion 31 when the lid 4 is attached. A spiral male thread 35a is formed on the outer peripheral surface of the opening 35, with notched recesses 35b provided at radially opposing positions. The notched recesses 35b are arranged so that when the refill container 1, having the annular body 2 fitted at its upper end as described below, is inserted into the upper open end 30 of the main container 3 and stored, the pair of levers 27 of the refill container 1 fit into the notched recesses 35b, respectively. This prevents the levers 27 from getting in the way when the lid 4 is screwed onto the opening 35.

[0034] The locking wall 36 has on its outer surface an annular rib 36a that detachably fits with the annular rib 25a provided on the inner surface of the hanging wall 25 of the annular body 2. When the refill container 1 is stored in the main container 3, the refill container 1, with the annular body 2 fitted on its upper end, is inserted into the main container 3 from the upper open end 30, and the locking wall 36 is fitted into the gap between the hanging walls 24 and 25 of the annular body 2, for example, by capping, whereby the annular rib 25a of the hanging wall 25 fits with the annular rib 36a of the main container 3, and the refill container 1 can be fixed and held in the main container 3.

[0035] When the contents in the refill container 1 have been used up, the pair of levers 27 of the annular body 2 are pinched with the fingers and pushed radially inward. This causes the lower end 27b of the lever 27 to come into contact with the connecting portion 38 that connects the peripheral wall portion 34 and the housing shell 37, and the lever 27 moves upward along the inclined portion 38a, pushing up the annular body 2, disengaging the annular rib 25a of the annular body 2 from the annular rib 36a of the main container 3, allowing the refill container 1 and the annular body 2 to be removed.

[0036] The holding shell 37 covers and holds the outer periphery of the refill container 1 to be housed therein, and therefore in this embodiment, it has the same shape as the refill container 1, but is not limited to this.

[0037] The lid 4 is a cylindrical cap with a top that is screwed onto the mouth 35 of the container body 3, and includes a disk-shaped top wall 41 disposed radially, and a cylindrical peripheral wall 42 that hangs down from the outer edge of the top wall 41. The inner surface of the peripheral wall 42 is formed with a female thread 42a that is screwed onto a male thread 35a provided on the mouth 35 of the container body 3. Note that, although the present embodiment shows an example in which the lid 4 is screwed onto the container body 3, the present invention is not limited to this. For example, the lid 4 may be attached to the container body 3 by undercut fitting.

[0038] A disk-shaped packing 43 is fitted to the underside of the top wall 41. This packing 43 is sandwiched between the underside of the top wall 41 of the lid 4 and the upper surface of the annular body 2, and serves to seal the opening 21 of the annular body 2 that is opened by peeling off the sealing material 26 after use has begun, thereby preventing the contents of the refill container 1 from leaking out. Note that, without providing the packing 43, for example, the lid 4 may be made of an elastic material, and the top wall 41 of the lid 4 may directly seal the opening 21 of the annular body 2 that has been opened.

[0039] Next, a method for using the refill container and double container configured as described above will be described. Note that Fig. 7 is a front view showing the state in which the refill container 1 of Fig. 1 is housed in the main container 3 of Fig. 6.

[0040] First, the contents were filled Container body 10 The annular body 2 is placed on the upper end of the casing 2 from above, and the inner surface of the hanging wall 24 of the annular body 2 is Container body 10 The annular body 2 is then placed along the outer surface of the peripheral wall 11, and the annular body 2 is pressed from above to plug it. This causes the annular rib 11a of the peripheral wall 11 to fit into the annular rib 24a of the hanging wall 24, Container body 10 is suspended from the annular body 2.

[0041] Suspended by annular body 2 Container body 10 7, the refill container 1 is inserted into the upper open end 30 of the main container body 3 and aligned so that the lever 27 of the ring-shaped body 2 coincides with the notched recess 35b provided in the opening 35 of the main container body 3. In this state, the ring-shaped body 2 is pressed from above, and the locking wall 36 of the main container body 3 is fitted into the gap between the hanging walls 24 and 25 of the ring-shaped body 2, and the annular rib 36a of the locking wall 36 fits into the annular rib 25a of the hanging wall 25, and the refill container 1 is stored and held within the main container body 3 via the ring-shaped body 2.

[0042] When using the container, the sealing material 26 on the top surface of the annular body 2 is pulled upward with the fingers as shown by the arrow in Figure 7, and peeled off to form the opening 21. The contents in the refill container 1 are scooped up through the opening 21 using fingers, a spoon, or the like, and are ready for use.

[0043] After use, the lid 4 is attached by screwing (the female thread 42a and the male thread 35a) onto the opening 35 of the main container 3. Note that, since a packing 43 is fitted to the underside of the top wall 41 of the lid 4, even if the contents remain in the refill container 1, the packing 43 can seal the opening 21, thereby preventing the contents from leaking out.

[0044] Also, Container body 10 When the contents inside are used up, the pair of levers 27 of the annular body 2 are pinched with fingers and pushed radially inward, pushing the annular body 2 upward and disengaging the annular rib 36a of the locking wall 36 from the annular rib 25a of the hanging wall 25. Container body 10 is removed while being held hanging down by the annular body 2. Then, a new refill container 1 filled with the contents is attached to the locking wall 36 of the main container 3 via the annular body 2 in the same manner as above, with the annular body 2 fitted to the upper end, and is stored and held within the main container 3. This allows the main container 3 to be used repeatedly by replacing the refill container 1, thereby reducing product costs and waste volume.

[0045] Figure 8 shows another embodiment of the annular body 2 fitted to the upper end of the container body 10 of the refill container 1, where Figure 8(a) is a cross-sectional view of the annular body 2 when a sealing material 26 is provided on the upper surface of the annular body 2 by insert molding, and Figure 8(b) is a diagram showing a method of peeling off the sealing material 26 in a refill container 1 having the annular body 2 of Figure 8(a) fitted to the upper end.

[0046] The annular body 2 has a flat surface portion 28a, which is the upper surface of the top wall 23, that horizontally adheres to the sealing material 26, and an inclined surface portion 28b that is connected to the inner end of the flat surface portion 28a and is inclined downward in the axial direction. By providing the inclined surface portion 28b in this manner and adhering the sealing material 26 to the inclined surface portion 28b, even if the annular body 2 shrinks after insert molding, the inclined surface portion 28b can cause the central portion 26b of the sealing material 26 to be recessed downward, and the central portion 26b of the sealing material 26 can be maintained in a recessed state at the opening 21 so that it is lower than the flat surface portion 28a.

[0047] When the sealing material 26 is attached to the upper surface of the annular body 2 by insert molding, the upper surface of the annular body 2 may become rough after the sealing material 26 is removed, which may reduce the sealing ability with the packing 43 provided on the underside of the top wall 41 of the lid 4. For this reason, it is preferable to provide an annular sealing portion 28c that is equal to or higher than the flat surface portion 28a on the radially outer side of the flat surface portion 28a of the top wall 23 of the annular body 2, and to seal the opening 21 by abutting the sealing portion 28c against the packing 43 of the lid 4.

[0048] In addition, the sealing material 26 can be peeled off by folding at least a portion of the outer peripheral portion 26a radially inward to form a gripping portion, or by protruding at least a portion of the outer peripheral portion 26a radially outward from the annular body 2 to form a gripping portion, and by grasping and pulling the gripping portion with the fingers; there is no particular limitation on the method for peeling off the sealing material 26. [Industrial Applicability]

[0049] The refill container and double container of the present invention can be widely used as a container for storing creamy or viscous cosmetics, medicines, detergents, etc. [Explanation of symbols]

[0050] V double container 1 refill container 10 Container body 11 Peripheral wall section 11a Circular rib 12 Bottom wall 2. Circular bodies 21 Aperture 23 Top wall 24 Hanging wall 24a Circular rib 25 Hanging wall 25a Circular rib 26 Sealing material 26a Outer periphery 26b Central part 27 Lever 27a Convex part 28a Flat surface part 28b Slope section 28c Seal part 3 Main container 30 Upper open end 31 Cylindrical part 31a Notch 32 Bottom wall 32a Ring section 32b Annular rib 33 Holding part 34 Peripheral wall section 34a Convex part 35 Mouth 35a male thread 35b Notched recess 36 Retaining Wall 36a Circular rib 37 Storage Shell 37a Ring section 38 Connecting part 38a Slope section 4 Lid 41 Top wall 42 Peripheral wall part 42a female thread 43 Gasket

Claims

1. A refill container having a container body filled with a content, the content being removable through an opening formed at the top end of the container body, a ring-shaped body that is disposed on the upper end of the container body so as to be able to be fitted by stoppering, and a sealing material that is disposed on the upper surface of the ring-shaped body so as to be able to be peeled off, and that forms an opening for taking out the contents filled in the container body on the inside of the ring-shaped body by peeling off the sealing material, the sealing material includes an outer periphery and a central portion that covers the outlet port inside the outer periphery and is located below the outer periphery; the annular body has at least one pair of levers suspended at opposite positions, The pair of levers each have an oval projection on an outer surface thereof that functions as a male screw and also as an anti-slip device, The annular body has a top wall that can abut against the tip of the upper end of the container body, and a hanging wall that can be fitted onto the outer surface of the upper end.

2. the sealing material is removably attached to the upper surface of the annular body, The refill container according to claim 1, characterized in that the annular body has on its upper surface a flat surface portion that horizontally adheres the sealing material, and an inclined surface portion that connects to the inner end of the flat surface portion and inclines the sealing material radially inward toward the flat surface portion so that it is lower than the flat surface portion and adheres to the sealing material.

3. The refill container according to claim 2, wherein the annular body has a sealing portion at the outer edge of the sealing material, the sealing portion having a surface that is flush with the flat surface portion or higher than the flat surface portion.

4. A double container containing the refill container according to any one of claims 1 to 3, a main body container that houses the refill container in its internal space through an upper open end provided in a cylindrical portion; The double container housing the refill container is characterized by comprising a lid body that covers the cylindrical portion and the upper open end and keeps the internal space sealed.

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