WO2024070926A1 - Refill container and replacement container - Google Patents

Refill container and replacement container Download PDF

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Publication number
WO2024070926A1
WO2024070926A1 PCT/JP2023/034435 JP2023034435W WO2024070926A1 WO 2024070926 A1 WO2024070926 A1 WO 2024070926A1 JP 2023034435 W JP2023034435 W JP 2023034435W WO 2024070926 A1 WO2024070926 A1 WO 2024070926A1
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WO
WIPO (PCT)
Prior art keywords
container
refill
refill container
outer container
container body
Prior art date
Application number
PCT/JP2023/034435
Other languages
French (fr)
Japanese (ja)
Inventor
徹也 石塚
Original Assignee
株式会社吉野工業所
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Filing date
Publication date
Application filed by 株式会社吉野工業所 filed Critical 株式会社吉野工業所
Publication of WO2024070926A1 publication Critical patent/WO2024070926A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another

Definitions

  • the present invention relates to a refill container that is used by replacing it with an outer container, and a replacement container that includes a refill container and an outer container.
  • a refillable container that contains cream or gel-like contents (such as cosmetics) is known, and has an inner container that is a refill container that contains the contents and an outer container that detachably holds the refill container (see, for example, Patent Document 1).
  • the refill container can be replaced, allowing the outer container to be reused. Since only the refill container needs to be disposed of after use, compared to disposing of the entire container, this reduces the amount of plastic used and is advantageous in terms of resource conservation, etc.
  • the refill container In such replacement containers, the refill container must be easily detachable from the outer container when replacing it, and must also be easy to attach, but when in use, the refill container must be held in the outer container so that it does not easily come off. Furthermore, from the perspective of resource conservation, the inner container must be as simple in structure as possible.
  • the object of the present invention is to provide a refill container and a replacement container that are easily replaceable with a simple structure and can be held well in the outer container.
  • the refill container of the present invention is a refill container that has a storage space for storing contents and is used by replacing it with an outer container, and includes a refill container body having a bottom surface and side surfaces that partition the storage space and an open top surface, a flange portion that protrudes outward from the side surfaces, a vertical peripheral wall portion that is suspended from the outer edge of the flange portion and is provided to surround the side surfaces of the refill container body, a refill side fitting portion that protrudes from the inner surface of the vertical peripheral wall portion toward the refill container body, and the vertical peripheral wall portion has a refill side fitting portion that fits the refill container body.
  • the refill container is characterized in that it has a plurality of notches that cut out the portion where the refill side fitting portion is provided with a predetermined notch width, and when the refill container body is inserted into the outer container, the refill side fitting portion and the outer container side fitting portion provided on the outer container fit together, so that the refill container is attached to the outer container, and when the refill container is attached to the outer container, the side portion is configured so that a gap that becomes larger from the top surface side toward the bottom surface side is formed between the side portion and the inner surface of the outer container.
  • the number of the notches provided in the vertical peripheral wall portion is 2 to 12.
  • the side portion is an inclined wall that is inclined so that the bottom side is closer to the central axis of the refill container body than the top side.
  • the replacement container of the present invention is characterized by comprising the above-mentioned refill container and the outer container to which the refill container can be replaceably attached.
  • the refill container can be attached to the outer container by fitting the refill side fitting portion to the outer container side fitting portion provided on the outer surface of the outer container.
  • the refill side fitting portion is provided on the inner surface of the vertical wall portion that is suspended from the flange portion that protrudes outward from the side portion of the refill container body.
  • This vertical wall portion is provided with a plurality of notches, and the refill side fitting portion is also cut out by the notches.
  • a gap is formed between the outer surface of the refill container body and the inner surface of the refill storage portion that becomes larger from the top end toward the bottom surface of the refill storage portion.
  • a force can be applied in the direction of lifting the flange portion, with the flange portion on the opposite side to the pressing portion as the fulcrum and the flange portion on the pressing portion side as the point of application across the central axis of the refill container body.
  • the notch prevents the force acting on the point of application from being transmitted to the fulcrum, while the increased width of the notch allows the flange on the point of application to move upward.
  • the present invention provides a refill container and a replacement container that are easily replaceable and can be held well in the outer container with a simple configuration.
  • FIG. 2B is a side cross-sectional view of a refill container according to an embodiment of the present invention, the cross section being taken along line AA of FIG. 2 is a side view showing a refill container that can be attached to the replacement container shown in FIG. 1 .
  • 2 is a bottom view showing a refill container that can be attached to the replacement container shown in FIG. 1 . 1 with the lid removed, and is a diagram for explaining a procedure for removing the refill container.
  • FIG. FIG. 3B is an enlarged view of a portion of FIG. 3A.
  • 3B is a side cross-sectional view showing the refill container shown in FIG. 1 with the lid removed, and is a view for explaining the procedure for removing the refill container together with FIG. 3A.
  • FIG. FIG. 4B is an enlarged view of a portion of FIG. 4A.
  • FIG. 4B is an enlarged view of a portion of FIG. 4A.
  • FIG. 1 is a side cross-sectional view of the replacement container of this embodiment.
  • the replacement container 100 includes a refill container 10, an outer container 20 (outer container), and a lid 30, and contains the refill container 10 in a replaceable manner in the outer container 20.
  • the direction along the central axis O of the refill container 10 will be referred to as the axial direction, and in this axial direction, the top side of the refill container 10 will be referred to as the upper side, and the bottom surface portion 11a side will be referred to as the lower side.
  • the radial direction is the direction perpendicular to the central axis O in a plane perpendicular to the central axis O
  • the circumferential direction is the direction rotating around the central axis O in this plane.
  • Fig. 2A is a side view of the refill container 10
  • Fig. 2B is a bottom view.
  • the refill container 10 has a generally cylindrical shape and has a bottom surface portion 11a and a side surface portion 11b, which define a storage space S for storing the contents.
  • the top surface of the refill container body 11, i.e., the top surface of the storage space S, is open.
  • the refill container 10 can be obtained, for example, by molding a synthetic resin into a predetermined shape.
  • the resin constituting the refill container 10 for example, polyethylene terephthalate resin (PET), polyethylene resin (PE (LDPE, HDPE, LLDPE)), polypropylene resin (PP (homopolymer, random copolymer, block copolymer)), polyamide resin (PA), ethylene vinyl alcohol resin (EVOH), etc. are preferably used.
  • PET polyethylene terephthalate resin
  • PE polyethylene resin
  • PE LDPE, HDPE, LLDPE
  • PP polypropylene resin
  • PA polyamide resin
  • EVOH ethylene vinyl alcohol resin
  • the refill container 10 may have a single-layer structure made of these resins, or a laminate structure in which these resins are appropriately laminated.
  • biodegradable resins or recycled resins containing the above-mentioned resin components from the viewpoint of reducing the environmental burden.
  • the contents stored in the storage space S of the refill container body 11 are not particularly limited, but for example, cream-like or gel-like cosmetics can be suitably stored.
  • the contents may be cream-like or gel-like, or may be solid with no fluidity.
  • the contents may be various other contents such as medicines such as ointments, adhesives such as glue, paints such as paints, and food such as seasonings.
  • the bottom surface portion 11a is substantially circular when viewed from below as shown in FIG. 2B. As shown in FIGS. 1 and 2A, the bottom surface portion 11a is formed in a spherical or dish-like shape that is convex downward in the central axis direction.
  • the side surface portion 11b is connected to the bottom surface portion 11a.
  • the side surface portion 11b is a peripheral wall that surrounds the bottom surface portion 11a, and is configured as an inclined wall (inclined surface) that is gently inclined so that the bottom surface portion 11a side is closer to the central axis O than the top surface side.
  • the bottom surface portion 11a of the refill container body 11 has a smaller diameter than the top surface, and the diameter gradually increases from the bottom surface portion 11a toward the top surface.
  • the refill container 10 includes a flange portion 12 provided on the top end of the refill container body 11, a vertical wall portion 13 suspended from the flange portion 12, a refill side fitting portion 14 provided on the inner lower end side of the vertical wall portion 13, and a notch portion 15 that cuts the vertical wall portion 13 with a predetermined notch width.
  • this U-shaped cross-section portion formed by the side portion 11b, the flange portion 12 and the vertical wall portion 13 functions as an insertion portion 16 into which the tip portion of the mouth portion 23 of the outer container 20 is inserted.
  • the configuration of each portion will be described in more detail below.
  • the flange portion 12 protrudes radially outward from the top end of the refill container body 11 and is provided along the outer edge of the opening surface of the refill container body 11 so as to surround the opening surface.
  • the flange portion 12 has a predetermined width in the radial direction and is shaped like an annular plate with a thin thickness in the axial direction.
  • An annular convex rib 12a that protrudes upward is provided on the upper surface of the flange portion 12 (see Figures 2A to 4C).
  • the annular convex rib 12a is provided at approximately the center of the flange portion 12 in the width direction.
  • the annular convex rib 12a is used as a contact ring for a packing seal.
  • the vertical wall portion 13 is suspended from the outer edge of the flange portion 12 and is provided so as to surround the outer surface of the side portion 11b of the refill container body 11.
  • the refill side fitting portion 14 protrudes from the inner surface of the vertical wall portion 13 toward the refill container body 11 and is configured as an annular convex rib (undercut) extending in the circumferential direction (see partial enlargements in Figures 3B, 4B, and 4C).
  • the cutout 15 is a portion of the vertical wall 13 cut out in the axial direction from the bottom end of the vertical wall 13 to the top end by a predetermined cutout width W (see FIG. 2B) and a predetermined cutout length L1 (see FIG. 2A). That is, as shown in FIG. 2A, the cutout 15 is configured as an axially long, approximately rectangular slit provided in the vertical wall 13. However, the cutout width W refers to the circumferential width of the cutout 15. Also, the cutout length L1 refers to the axial length of the cutout 15.
  • the cutout length L1 is L1 ⁇ L2, preferably L1 ⁇ L2 ⁇ (29/30), and more preferably L1 ⁇ L2 ⁇ (19/20). That is, the cutout portion 15 has a length (cutout length) in the axial direction that does not reach the top end of the vertical wall portion 13, and it is preferable that a remaining portion 17 of the cutout vertical wall portion 13 exists between the outer edge of the flange portion 12 and the cutout portion 15.
  • the notches 15 also cut out the refill-side fitting portion 14 provided on the lower end side of the inner surface of the vertical wall portion 13.
  • multiple notches 15 are provided in the vertical wall portion 13. Therefore, the refill-side fitting portion 14 is provided intermittently around almost the entire circumference.
  • FIG. 2B shows an example in which three notches 15 are provided at equal intervals (120°) in the vertical wall portion 13.
  • the number of notches 15 in the present invention is not limited to the illustrated example.
  • the number of notches 15 provided in the vertical wall portion 13 can be 2 to 12 inclusive. In particular, 3 to 10 inclusive is preferable, and 4 to 8 inclusive is also preferable.
  • the outer container 20 has an outer container side portion 21 and an outer container side bottom portion 22, and the refill container body 11 is housed inside the space defined by these portions, which is open on the top side.
  • a mouth portion 23 is provided on the top side of the outer container side portion 21, and the outer peripheral surface of the mouth portion 23 is provided with a screw portion 23a for removably attaching the lid body 30, and an outer container side fitting portion 23b for replaceably attaching the refill container 10.
  • the outer container side side portion 21 and the outer container side bottom portion 22 are configured to be thicker than the side portion 11b and bottom portion 11a of the refill container body 11, respectively.
  • the outer container 20 can be made of, for example, resin, glass, metal, etc. If it is made of resin, it may be made of acrylic resin in addition to the resins listed above.
  • the outer container 20 is a container that is used repeatedly by replacing the refill container 10. By configuring it to be thicker than the refill container body 11, sufficient strength can be achieved by attaching it to the outer container 20 even if the refill container body 11 is not durable enough to be used alone. Therefore, by configuring the refill container body 11 to be thin, the amount of plastic used can be reduced.
  • the outer surface of the outer container side portion 21 gradually expands in diameter from the outer container side bottom portion 22 toward the lower end of the mouth portion 23.
  • the inner surface of the outer container side portion 21 expands in diameter slightly from the bottom side toward the top side.
  • the gradient of the outer container side portion 21 is extremely small, and is set to be smaller than the gradient of the side portion 11b of the refill container body 11. Therefore, when the refill container body 11 is placed in the outer container 20, a gap G is formed between the side portion 11b of the refill container body 11 and the inner surface of the outer container 20, which becomes larger from the top side toward the bottom portion 11a.
  • the gradient of the outer container side portion 21 here refers to the angle between the central axis O and the outer container side portion 21.
  • the outer peripheral surface of the mouth portion 23 is provided with the threaded portion 23a and the outer container side fitting portion 23b. As shown in FIG. 1, the outer peripheral surface of the mouth portion 23 is provided with a step portion 23c that is recessed radially inward above the threaded portion 23a.
  • the outer container side fitting portion 23b is provided on the outer peripheral surface of the mouth portion 23 above this step portion 23c.
  • the portion of the mouth portion 23 above the step portion 23c will be referred to as the tip portion 23d.
  • the tip portion 23d of the mouth portion 23 is formed thinner than the portion below the step portion 23c.
  • the outer container side fitting portion 23b is configured as an annular convex rib (undercut) that protrudes radially outward from the outer surface of the tip portion 23d.
  • the lid body 30 includes an inner lid portion 31 and an outer lid portion 32 .
  • the inner lid portion 31 has a top cylindrical shape and includes an inner lid top wall portion 31a and an inner lid peripheral wall portion 31b.
  • the inner lid top wall portion 31a has a substantially circular plate shape.
  • the inner lid top wall portion 31a covers the top surface of the refill container body 11 when the refill container 10 is attached to the outer container 20.
  • the inner lid peripheral wall portion 31b is suspended from the outer edge of the inner lid top wall portion 31a and is provided so as to surround the outer edge of the inner lid top wall portion 31a.
  • a threaded portion 31c is provided on the inner surface of the inner lid peripheral wall portion 31b.
  • the threaded portion 31c is screwed into the threaded portion 23a on the mouth portion 23 side of the outer container 20, so that the lid body 30 is detachably attached to the mouth portion 23 of the outer container 20.
  • An inner lid side engaging portion 31d is provided on the outer surface of the inner lid peripheral wall portion 31b, protruding radially outward at its lower end portion, for engaging the exterior lid portion 32 with the inner lid portion 31.
  • a packing 33 having a planar shape substantially the same as the inner shape of the inner lid top wall portion 31a is provided on the inner surface side of the inner lid top wall portion 31a. The packing 33 abuts against the upper surface of the annular protruding rib 12a provided on the flange portion 12 of the refill container body 11.
  • the outer lid portion 32 is a cylindrical shape with a top that is slightly larger than the inner lid portion 31, and includes an outer lid top wall portion 32a and an outer lid peripheral wall portion 32b.
  • the outer lid top wall portion 32a is generally disk-shaped, similar to the inner lid top wall portion 31a.
  • the outer lid peripheral wall portion 32b is suspended from the outer edge of the outer lid top wall portion 32a and is provided so as to surround the outer edge of the outer lid top wall portion 32a.
  • the inner surface of the outer lid peripheral wall portion 32b is provided with an outer lid side engagement portion 32c that is configured as a radially recessed recess.
  • the inner lid portion 31 and the outer lid portion 32 can be made of the same material as the outer container 20.
  • the inner lid portion 31 and the outer lid portion 32 may be made of the same material, or may be made of different materials.
  • the outer lid portion 32 has various designs depending on the type of product or each time a specific product is renewed, and the inner lid portion 31 is a common component regardless of the product.
  • the lid 30 is turned in the reverse screw direction and removed to obtain the state shown in Fig. 3A.
  • the tip 23d of the mouth 23 is inserted into the above-mentioned U-shaped cross-section insertion portion 16 composed of the side portion 11b of the refill container body 11, the flange portion 12, and the vertical peripheral wall portion 13, the lower surface of the flange portion 12 abuts against the top surface of the tip 23d of the mouth 23, the convex portion of the refill side fitting portion 14 is positioned below the convex portion of the outer container side fitting portion 23b, and the two are in a fitted state.
  • the inside of the refill container body 11 may be provided with a marking to indicate the area to be pressed, for example. Markings to indicate the area to be pressed may be various symbols such as a circle, star, arrow, or letters such as "press here", or a combination of these symbols and letters.
  • the side portion 11b When the side portion 11b is pressed toward the outer container side portion 21 at the pressing position, the side portion 11b tries to move toward the outer container side portion 21 by an amount of movement corresponding to the width (Gw) of the gap G at the pressing position. At this time, the pressing position becomes the force point, and the refill container body 11 tries to tilt (rotate) at a predetermined angle corresponding to the amount of movement (Gw) within the outer container 20 at the abutment point between the flange portion 12 of the refill container body 11 and the tip portion 23d of the mouth portion 23 of the outer container 20 on the opposite side of the pressing position across the central axis O (see the white arrow in Figure 4A).
  • the vertical wall portion 13 is provided with a plurality of the above-mentioned notches 15, and the force acting on the point of application is divided by the notches 15 and is not transmitted to the fulcrum side. Therefore, when the side surface portion 11b is pressed at the above-mentioned pressing position, first, the notch width of the notches 15 widens and the flange portion 12 moves upward. When the flange portion 12 is lifted upward, the vertical wall portion 13 also moves upward accordingly, and the convex portion of the refill side fitting portion 14 passes over the convex portion of the outer container side fitting portion 23b, and the fitting state between the two is released.
  • the refill container 10 of this embodiment has three cutouts 15, and the vertical wall portion 13 (and the refill side fitting portion 14) is divided into three by the cutouts 15.
  • these divided areas are referred to as the first vertical wall portion 13a, the second vertical wall portion 13b, and the third vertical wall portion 13c.
  • the area on the side where the above-mentioned action point is located is assumed to be the first vertical wall portion 13a.
  • the mating state between the refill side mating portion 14 and the outer container side mating portion 23b at the first vertical peripheral wall portion 13a is released, if the mating state is maintained in other areas, the mating state between the refill side mating portion 14 and the outer container side mating portion 23b at the point of action can be released by appropriately selecting a site that will be the point of action and repeating the same procedure as described above.
  • the refill container 10 of this embodiment has a simple configuration in which the notch 15 is provided in the vertical wall portion 13, the refill side fitting portion 14 is intermittently fitted into the outer container side fitting portion 23b, and a gap G is provided between the side portion 11b of the refill container body 11 and the inner surface of the outer container 20 when the refill container body 11 is housed in the outer container 20, which increases from the top surface side toward the bottom surface portion 11a. This allows the refill container 10 to be easily removed from the outer container 20 with little force by utilizing the principle of leverage.
  • the flange portion 12 is provided along the outer edge of the top end of the refill container body 11 so as to surround the opening surface, and although the vertical wall portion 13 and the refill side fitting portion 14 are also interrupted by the notch 15, they are provided so as to surround the side portion 11b of the refill container body 11 over almost the entire circumference.
  • the notch 15 is provided on the refill container 10 side, and the side portion 11b is a peripheral wall surrounding the bottom portion 11a, and is an inclined wall that is gently inclined so that the bottom portion 11a side is closer to the central axis O than the top side.
  • This allows the above effect to be obtained by providing a gap G between the outer container side portion 21 and the outer container 20, which becomes larger from the top side toward the bottom portion 11a, without changing the configuration of the outer container 20 that is already on the market.
  • the replacement container 100 and the refill container 10 of the present embodiment described above are one aspect of the present invention, and the present invention is not limited to the above embodiment, and can be modified as appropriate within the scope of the present invention.
  • the side surface 11b of the refill container 10 is the inclined surface as described above, but the side surface 11b may not be an inclined surface, and the outer container side side surface 21 may be an inclined wall inclined so that the outer container side bottom surface 22 side is closer to the central axis O than the mouth 23 side.
  • a gap G is formed between the side surface 11b of the refill container 10 and the outer container side side surface 21, which becomes larger from the top surface side toward the bottom surface 11a, and the above-mentioned effect can be obtained.
  • the outer container side side surface 21 is also slightly inclined, but as long as the gap G is formed, there is no particular limitation on whether the outer container side side surface 21 is an inclined surface or not, and the direction of the inclination, etc.
  • the gap G needs to be large enough so that when the side surface portion 11b is pressed as described above, the convex portion of the refill side fitting portion can overcome the convex portion of the outer container side fitting portion 23b.
  • the flange portion 12 is provided on the top end of the side portion 11b of the refill container body 11, but the flange portion 12 is not limited to the top end of the side portion 11b, and may be provided below the top end of the side portion 11b so as to protrude radially outward from the outer surface.
  • the screw portion 23a is provided on the mouth portion 23 of the outer container 20, and the lid body 30 is removably attached to the outer container 20.
  • a screw portion may be provided on the outer peripheral surface of the side portion 11b, and the lid body 30 may be removably attached to the refill container 10.
  • the flange portion 12 on the top end of the side portion 11b of the refill container body 11, it becomes easier to reduce the amount of plastic used.
  • the bottom surface 11a of the refill container body 11 is dish-shaped or spherical, convex downward in the axial direction.
  • the refill container 10 cannot be placed directly on a support surface such as a desk in a stable state with the opening surface facing axially upward. This makes it possible to encourage the refill container 10 to be attached to an outer container 20 for use.
  • the bottom surface 11a of the refill container body 11 may be flat, and the shape of the bottom surface 11a is not particularly limited.
  • the refill container 10 is mainly assumed to be made of plastic, it may also be made of paper with a water-resistant or oil-resistant coating.
  • Refill container 11 Refill container body 11a: Bottom surface portion 11b: Side surface portion 12: Flange portion 12a: Annular convex rib 13: Vertical peripheral wall portion 13a: First vertical peripheral wall portion 13b: Second vertical peripheral wall portion 13c: Third vertical peripheral wall portion 14: Refill side fitting portion 15: Cutout portion 16: Insertion portion 17: Remaining portion 20: Exterior container (outer container) 21: Outer container side side portion 22: Outer container side bottom portion 23: Opening portion 23a: Screw portion 23b: Outer container side fitting portion (outer container side fitting portion) 23c : Step 23d : Tip 30 : Lid 31 : Inner lid 31a : Inner lid top wall 31b : Inner lid peripheral wall 31c : Screw 31d : Inner lid side engagement 32 : Outer lid 32a : Outer lid top wall 32b : Outer lid peripheral wall 32c : Outer lid side engagement 33 : Gasket 100 : Replacement container G : Gap O : Central axis S : Storage space

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  • Mechanical Engineering (AREA)
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Abstract

The present invention provides a refill container which, with a simple configuration, is easily replaced and can be held well by an outer container. The present invention also provides a replacement container.　A refill container (10) comprises: a refill container main body (11) that has a bottom surface part (11a) and a side surface part (11b) which define a storage space (S) for storing contents therein; a flange part (12) that protrudes outward from the side surface part (11b); a vertical circumferential wall part (13) that is vertically suspended from the outer edge of the flange part (12); a refill-side fitting part (14) that protrudes from the inner surface of the vertical circumferential wall part (13); and a plurality of cutout parts (15) that are provided to the vertical circumferential wall part (13), wherein the refill container (10) is attached to an outer container (20) by the refill-side fitting part (14) being fitted with an outer container-side fitting part (23b), and the side surface part (11b) is configured such that a gap (G) which becomes wider from the top surface side toward the bottom surface part (11a) is formed between the side surface part (11b) and the inner surface of the outer container (20). A replacement container (100) comprises this refill container (10) and the outer container (20).

Description

レフィル容器、及び付け替え容器Refill containers and replacement containers
　本発明は、外容器に付け替えて使用されるレフィル容器と、レフィル容器及び外容器を備える付け替え容器に関する。 The present invention relates to a refill container that is used by replacing it with an outer container, and a replacement container that includes a refill container and an outer container.
　クリーム状やゲル状の内容物（化粧料など）を収容する容器として、内容物を収容するレフィル容器を内容器とし、このレフィル容器を着脱可能に保持する外容器とを備える付け替え容器が知られている（例えば特許文献１参照）。 A refillable container that contains cream or gel-like contents (such as cosmetics) is known, and has an inner container that is a refill container that contains the contents and an outer container that detachably holds the refill container (see, for example, Patent Document 1).
　このような付け替え容器では、内容物を使い終わるとレフィル容器を付け替えることで、外容器を繰り返し使用することができる。使用後に廃棄するのはレフィル容器のみとなるため、容器全体を廃棄する場合と比較すると、プラスチック使用量を削減することができ、省資源化等の点で優れている。 With these types of replacement containers, once the contents have been used up, the refill container can be replaced, allowing the outer container to be reused. Since only the refill container needs to be disposed of after use, compared to disposing of the entire container, this reduces the amount of plastic used and is advantageous in terms of resource conservation, etc.
特開２０１６－２１０４３３号公報JP 2016-210433 A
　このような付け替え容器において、付け替え時はレフィル容器を外容器に対して簡単に外すことができ、且つ、取り付けも容易であることが求められる一方、使用時はレフィル容器が外容器から簡単に外れることがないように外容器に保持させることが求められる。さらに、省資源化等の観点から、内容器は極力簡易な構成であることが求められる。 In such replacement containers, the refill container must be easily detachable from the outer container when replacing it, and must also be easy to attach, but when in use, the refill container must be held in the outer container so that it does not easily come off. Furthermore, from the perspective of resource conservation, the inner container must be as simple in structure as possible.
　そこで、本発明の課題は、簡易な構成により、付け替えが容易で、且つ、外容器に良好に保持させることのできるレフィル容器及び付け替え容器を提供することにある。 The object of the present invention is to provide a refill container and a replacement container that are easily replaceable with a simple structure and can be held well in the outer container.
　上記課題を解決するため、本発明に係るレフィル容器は、内容物を収容する収容空間を有し、外容器に付け替えて使用されるレフィル容器であって、前記収容空間を区画する底面部及び側面部を有し、天面が開口するレフィル容器本体と、前記側面部から外側に突出するフランジ部と、前記フランジ部の外縁から垂設され、前記レフィル容器本体の側面部を取り囲むように設けられる垂周壁部と、前記垂周壁部の内面から前記レフィル容器本体側に突出するレフィル側嵌合部と、前記垂周壁部において前記レフィル側嵌合部が設けられた部分を所定の切欠幅で切り欠く複数の切欠部と、を備え、前記レフィル容器本体を前記外容器に挿入したときに、前記レフィル側嵌合部と、前記外容器に設けられた外容器側嵌合部とが嵌合することで、当該レフィル容器が前記外容器に取り付けられ、当該レフィル容器が前記外容器に取り付けられたとき、前記側面部と前記外容器の内面との間に、前記天面側から前記底面部に向かうにつれて大きくなる隙間が形成されるように前記側面部が構成される、ことを特徴とする。 In order to solve the above problems, the refill container of the present invention is a refill container that has a storage space for storing contents and is used by replacing it with an outer container, and includes a refill container body having a bottom surface and side surfaces that partition the storage space and an open top surface, a flange portion that protrudes outward from the side surfaces, a vertical peripheral wall portion that is suspended from the outer edge of the flange portion and is provided to surround the side surfaces of the refill container body, a refill side fitting portion that protrudes from the inner surface of the vertical peripheral wall portion toward the refill container body, and the vertical peripheral wall portion has a refill side fitting portion that fits the refill container body. The refill container is characterized in that it has a plurality of notches that cut out the portion where the refill side fitting portion is provided with a predetermined notch width, and when the refill container body is inserted into the outer container, the refill side fitting portion and the outer container side fitting portion provided on the outer container fit together, so that the refill container is attached to the outer container, and when the refill container is attached to the outer container, the side portion is configured so that a gap that becomes larger from the top surface side toward the bottom surface side is formed between the side portion and the inner surface of the outer container.
　本発明に係るレフィル容器において、前記切欠部が前記垂周壁部に２個以上１２個以下設けられる、ことが好ましい。 In the refill container according to the present invention, it is preferable that the number of the notches provided in the vertical peripheral wall portion is 2 to 12.
　本発明に係るレフィル容器において、前記側面部は、前記底面部側が前記天面側よりも、前記レフィル容器本体の中心軸に近接するように傾斜する傾斜壁である、ことが好ましい。 In the refill container according to the present invention, it is preferable that the side portion is an inclined wall that is inclined so that the bottom side is closer to the central axis of the refill container body than the top side.
　上記課題を解決するため、本発明に係る付け替え容器は、上記レフィル容器と、当該レフィル容器が付け替え可能に取り付けられる前記外容器とを備えることを特徴とする。 In order to solve the above problem, the replacement container of the present invention is characterized by comprising the above-mentioned refill container and the outer container to which the refill container can be replaceably attached.
　本発明によれば、レフィル側嵌合部を外容器の外面に設けられた外容器側嵌合部に嵌合させることで、当該レフィル容器を外容器に取り付けることができる。レフィル側嵌合部はレフィル容器本体の側面部から外側に突出するフランジ部から垂設された垂周壁部の内面に設けられている。この垂周壁部には複数の切欠部が設けられ、切欠部によりレフィル側嵌合部も切り欠かれている。また、当該レフィル容器が外容器に取り付けられたとき、レフィル容器本体の外側面とレフィル収容部の内側面との間には、天端からレフィル収容部の底面部に向かうにつれて大きくなる隙間が形成されるようにしている。そのため、使用後にレフィル容器本体の収容空間に指等を挿入し、例えば、底部側において、レフィル容器本体の内側面を外容器側に押圧すると、レフィル容器本体の中心軸を挟んで押圧部位とは逆側のフランジ部を支点、押圧部位側のフランジ部を作用点として、フランジ部を持ち上げる方向に力を作用させることができる。作用点側に作用する力は切欠部により支点側に伝わるのを防ぎつつ、切欠幅が広がることで作用点側のフランジ部の上方への移動が許容される。そのため、作用点側のフランジ部を効率良く持ち上げて、レフィル側嵌合部と外容器側嵌合部との嵌合を解除することができる。このように、本発明によれば、簡易な構成により、付け替えが容易で、且つ、外容器に良好に保持させることのできるレフィル容器及び付け替え容器を得ることができる。 According to the present invention, the refill container can be attached to the outer container by fitting the refill side fitting portion to the outer container side fitting portion provided on the outer surface of the outer container. The refill side fitting portion is provided on the inner surface of the vertical wall portion that is suspended from the flange portion that protrudes outward from the side portion of the refill container body. This vertical wall portion is provided with a plurality of notches, and the refill side fitting portion is also cut out by the notches. In addition, when the refill container is attached to the outer container, a gap is formed between the outer surface of the refill container body and the inner surface of the refill storage portion that becomes larger from the top end toward the bottom surface of the refill storage portion. Therefore, when a finger or the like is inserted into the storage space of the refill container body after use and, for example, on the bottom side, the inner surface of the refill container body is pressed toward the outer container, a force can be applied in the direction of lifting the flange portion, with the flange portion on the opposite side to the pressing portion as the fulcrum and the flange portion on the pressing portion side as the point of application across the central axis of the refill container body. The notch prevents the force acting on the point of application from being transmitted to the fulcrum, while the increased width of the notch allows the flange on the point of application to move upward. This allows the flange on the point of application to be efficiently lifted to release the engagement between the refill-side fitting portion and the outer container-side fitting portion. In this way, the present invention provides a refill container and a replacement container that are easily replaceable and can be held well in the outer container with a simple configuration.
本発明の実施の形態の付け替え容器の側断面図である。但し、断面は図２ＢのＡ－Ａ断面を表す。2B is a side cross-sectional view of a refill container according to an embodiment of the present invention, the cross section being taken along line AA of FIG. 図１に示す付け替え容器に取り付けられるレフィル容器を示す側面図である。2 is a side view showing a refill container that can be attached to the replacement container shown in FIG. 1 . 図１に示す付け替え容器に取り付けられるレフィル容器を示す下面図である。2 is a bottom view showing a refill container that can be attached to the replacement container shown in FIG. 1 . 図１に示す付け替え容器において蓋体を取り外した状態を示す側断面図であり、レフィル容器を取り外す手順を説明するための図である。1 with the lid removed, and is a diagram for explaining a procedure for removing the refill container. FIG. 図３Ａの一部を拡大して示した図である。FIG. 3B is an enlarged view of a portion of FIG. 3A. 図１に示す付け替え容器において蓋体を取り外した状態を示す側断面図であり、図３Ａと共にレフィル容器を取り外す手順を説明するための図である。3B is a side cross-sectional view showing the refill container shown in FIG. 1 with the lid removed, and is a view for explaining the procedure for removing the refill container together with FIG. 3A. FIG. 図４Ａの一部を拡大して示した図である。FIG. 4B is an enlarged view of a portion of FIG. 4A. 図４Ａの一部を拡大して示した図である。FIG. 4B is an enlarged view of a portion of FIG. 4A.
　以下、図面を参照しながら本発明に係るレフィル容器、及び付け替え容器の一実施形態について説明する。図１は、本実施の形態の付け替え容器の側断面図である。図１に示すように、付け替え容器１００は、レフィル容器１０と、外装容器２０（外容器）と、蓋体３０とを備え、レフィル容器１０を外装容器２０に対して付け替え可能に収容したものである。以下、レフィル容器１０の中心軸線Ｏに沿う方向を軸方向と称し、当該軸方向においてレフィル容器１０の天面側を上方とし、底面部１１ａ側を下方と称する。また、径方向とは、中心軸線Ｏに対して垂直な面内で中心軸線Ｏと直交する方向であり、周方向とは、この面内で中心軸線Ｏを中心として周回する方向をいうものとする。 Below, an embodiment of the refill container and replacement container according to the present invention will be described with reference to the drawings. FIG. 1 is a side cross-sectional view of the replacement container of this embodiment. As shown in FIG. 1, the replacement container 100 includes a refill container 10, an outer container 20 (outer container), and a lid 30, and contains the refill container 10 in a replaceable manner in the outer container 20. Hereinafter, the direction along the central axis O of the refill container 10 will be referred to as the axial direction, and in this axial direction, the top side of the refill container 10 will be referred to as the upper side, and the bottom surface portion 11a side will be referred to as the lower side. In addition, the radial direction is the direction perpendicular to the central axis O in a plane perpendicular to the central axis O, and the circumferential direction is the direction rotating around the central axis O in this plane.
　まず、図１及び図２Ａ、図２Ｂを参照しながらレフィル容器１０について説明する。なお、図２Ａはレフィル容器１０を示す側面図であり、図２Ｂは下面図である。レフィル容器１０は、略円筒形状を呈し、底面部１１ａと、側面部１１ｂとを有し、これらにより内容物を収容するための収容空間Ｓが区画される。また、レフィル容器本体１１の天面、すなわち収容空間Ｓの天面は開口している。 First, the refill container 10 will be described with reference to Fig. 1, Fig. 2A, and Fig. 2B. Fig. 2A is a side view of the refill container 10, and Fig. 2B is a bottom view. The refill container 10 has a generally cylindrical shape and has a bottom surface portion 11a and a side surface portion 11b, which define a storage space S for storing the contents. In addition, the top surface of the refill container body 11, i.e., the top surface of the storage space S, is open.
　レフィル容器１０は、例えば、合成樹脂により所定形状に成形することにより得ることができる。レフィル容器１０を構成する樹脂として、例えば、ポリエチレンテレフタレート樹脂（ＰＥＴ）、ポリエチレン樹脂（ＰＥ（ＬＤＰＥ、ＨＤＰＥ、ＬＬＤＰＥ））、ポリプロピレン樹脂（ＰＰ（ホモポリマー、ランダム共重合体、ブロック共重合体））、ポリアミド樹脂（ＰＡ）、エチレンビニルアルコール樹脂（ＥＶＯＨ）などを用いることが好ましい。レフィル容器１０は、これらの樹脂からなる単層構造であってもよいし、これらの樹脂を適宜積層した積層構造であってもよい。また、生分解性樹脂や上記各樹脂成分を含むリサイクル樹脂等を用いることも環境負荷低減の観点からも好ましい。 The refill container 10 can be obtained, for example, by molding a synthetic resin into a predetermined shape. As the resin constituting the refill container 10, for example, polyethylene terephthalate resin (PET), polyethylene resin (PE (LDPE, HDPE, LLDPE)), polypropylene resin (PP (homopolymer, random copolymer, block copolymer)), polyamide resin (PA), ethylene vinyl alcohol resin (EVOH), etc. are preferably used. The refill container 10 may have a single-layer structure made of these resins, or a laminate structure in which these resins are appropriately laminated. In addition, it is also preferable to use biodegradable resins or recycled resins containing the above-mentioned resin components from the viewpoint of reducing the environmental burden.
　本発明において、レフィル容器本体１１の収容空間Ｓに収容される内容物は特に限定されるものではないが、例えば、クリーム状、ゲル状の化粧料等を好適に収容することができる。内容物は、クリーム状、ゲル状の他、流動性を有さない固形のものであってもよい。また、内容物は、化粧料の他に、塗り薬等の薬剤、糊等の接着剤、ペンキ等の塗料等、調味料等の食品等、種々の内容物を収容させることができる。 In the present invention, the contents stored in the storage space S of the refill container body 11 are not particularly limited, but for example, cream-like or gel-like cosmetics can be suitably stored. The contents may be cream-like or gel-like, or may be solid with no fluidity. Furthermore, in addition to cosmetics, the contents may be various other contents such as medicines such as ointments, adhesives such as glue, paints such as paints, and food such as seasonings.
　底面部１１ａは、図２Ｂに示す下面視において、略円形を呈する。また、図１及び図２Ａに示すように、底面部１１ａは中心軸方向において下方に凸の球面状又は皿状に形成されている。側面部１１ｂは底面部１１ａに連設されている。本実施の形態では、側面部１１ｂは底面部１１ａを取り囲む周壁であって、底面部１１ａ側が天面側よりも、中心軸線Ｏに近接するように緩やかに傾斜する傾斜壁（傾斜面）として構成されている。すなわち、レフィル容器本体１１は底面部１１ａが天面に対して小径であり、底面部１１ａから天面に向けて緩やかに拡径されている。 The bottom surface portion 11a is substantially circular when viewed from below as shown in FIG. 2B. As shown in FIGS. 1 and 2A, the bottom surface portion 11a is formed in a spherical or dish-like shape that is convex downward in the central axis direction. The side surface portion 11b is connected to the bottom surface portion 11a. In this embodiment, the side surface portion 11b is a peripheral wall that surrounds the bottom surface portion 11a, and is configured as an inclined wall (inclined surface) that is gently inclined so that the bottom surface portion 11a side is closer to the central axis O than the top surface side. In other words, the bottom surface portion 11a of the refill container body 11 has a smaller diameter than the top surface, and the diameter gradually increases from the bottom surface portion 11a toward the top surface.
　また、レフィル容器１０は、図１及び図２Ａ、図２Ｂに示すように、レフィル容器本体１１の天端に設けられるフランジ部１２と、フランジ部１２から垂設される垂周壁部１３と、垂周壁部１３の内面下端側に設けられるレフィル側嵌合部１４と、垂周壁部１３を所定の切欠幅で切り欠く切欠部１５とを備えている。このように当該レフィル容器本体１１の天面側の断面形状を、側面部１１ｂと、フランジ部１２及び垂周壁部１３とにより、下方が開口するコ字状にすることで、側面部１１ｂの肉厚を薄く構成し、樹脂量を削減した場合も、天面側の強度を維持することが容易になる。また、側面部１１ｂと、フランジ部１２及び垂周壁部１３とにより構成されるこの断面コ字状部分は、外装容器２０の口部２３の先端部分が挿入される挿入部１６として機能する。以下、各部の構成をより詳細に説明する。 As shown in Figs. 1, 2A and 2B, the refill container 10 includes a flange portion 12 provided on the top end of the refill container body 11, a vertical wall portion 13 suspended from the flange portion 12, a refill side fitting portion 14 provided on the inner lower end side of the vertical wall portion 13, and a notch portion 15 that cuts the vertical wall portion 13 with a predetermined notch width. By forming the cross-sectional shape of the top side of the refill container body 11 into a U-shape with an opening at the bottom by the side portion 11b, the flange portion 12 and the vertical wall portion 13, the thickness of the side portion 11b is made thin, and even when the amount of resin is reduced, the strength of the top side is easily maintained. In addition, this U-shaped cross-section portion formed by the side portion 11b, the flange portion 12 and the vertical wall portion 13 functions as an insertion portion 16 into which the tip portion of the mouth portion 23 of the outer container 20 is inserted. The configuration of each portion will be described in more detail below.
　フランジ部１２は、本実施の形態では、レフィル容器本体１１の天端から径方向外側に突出し、レフィル容器本体１１の開口面の外縁に沿って、当該開口面を取り囲むように設けられている。フランジ部１２は径方向に所定の幅を有し、軸方向の厚みの薄い環状板状を呈する。フランジ部１２の上面には、上方に突出する環状凸リブ１２ａが設けられている（図２Ａ～図４Ｃ参照）。環状凸リブ１２ａはフランジ部１２の幅方向略中央に設けられている。環状凸リブ１２ａはパッキンシール用のコンタクトリングとして用いられる。 In this embodiment, the flange portion 12 protrudes radially outward from the top end of the refill container body 11 and is provided along the outer edge of the opening surface of the refill container body 11 so as to surround the opening surface. The flange portion 12 has a predetermined width in the radial direction and is shaped like an annular plate with a thin thickness in the axial direction. An annular convex rib 12a that protrudes upward is provided on the upper surface of the flange portion 12 (see Figures 2A to 4C). The annular convex rib 12a is provided at approximately the center of the flange portion 12 in the width direction. The annular convex rib 12a is used as a contact ring for a packing seal.
　垂周壁部１３は、フランジ部１２の外縁から垂設され、レフィル容器本体１１の側面部１１ｂの外面を取り囲むように設けられる。レフィル側嵌合部１４は、垂周壁部１３の内面からレフィル容器本体１１側に突出し、周方向に延在する環状凸リブ（アンダーカット）として構成されている（図３Ｂ及び図４Ｂ、図４Ｃの一部拡大図参照）。 The vertical wall portion 13 is suspended from the outer edge of the flange portion 12 and is provided so as to surround the outer surface of the side portion 11b of the refill container body 11. The refill side fitting portion 14 protrudes from the inner surface of the vertical wall portion 13 toward the refill container body 11 and is configured as an annular convex rib (undercut) extending in the circumferential direction (see partial enlargements in Figures 3B, 4B, and 4C).
　図２Ａ、図２Ｂに示すように、切欠部１５は、垂周壁部１３の一部を所定の切欠幅Ｗ（図２Ｂ参照）で、垂周壁部１３の下端から天端に向けて軸方向に所定の切欠長Ｌ１（図２Ａ参照）だけ切り欠いた部分をいう。すなわち、図２Ａに示すように、切欠部１５は、垂周壁部１３に設けられた軸方向に長尺な略矩形のスリットとして構成される。但し、切欠幅Ｗは、切欠部１５の周方向における幅をいうものとする。また、切欠長Ｌ１は切欠部１５の軸方向における長さをいうものとする。切欠長Ｌ１は、垂周壁部１３の軸方向の長さ（垂周壁部１３の下端から天端までの長さ）をＬ２としたとき、Ｌ１＜Ｌ２であることが好ましく、Ｌ１≦Ｌ２×（２９／３０）であることが好ましく、Ｌ１≦Ｌ２×（１９／２０）であることがより好ましい。すなわち、切欠部１５は軸方向において、垂周壁部１３の天端に達しない長さ（切欠長）であり、フランジ部１２の外縁と、切欠部１５との間には、切り欠かれた垂周壁部１３の残部１７が存在することが好ましい。 2A and 2B, the cutout 15 is a portion of the vertical wall 13 cut out in the axial direction from the bottom end of the vertical wall 13 to the top end by a predetermined cutout width W (see FIG. 2B) and a predetermined cutout length L1 (see FIG. 2A). That is, as shown in FIG. 2A, the cutout 15 is configured as an axially long, approximately rectangular slit provided in the vertical wall 13. However, the cutout width W refers to the circumferential width of the cutout 15. Also, the cutout length L1 refers to the axial length of the cutout 15. When the axial length of the vertical wall 13 (the length from the bottom end to the top end of the vertical wall 13) is L2, it is preferable that the cutout length L1 is L1<L2, preferably L1≦L2×(29/30), and more preferably L1≦L2×(19/20). That is, the cutout portion 15 has a length (cutout length) in the axial direction that does not reach the top end of the vertical wall portion 13, and it is preferable that a remaining portion 17 of the cutout vertical wall portion 13 exists between the outer edge of the flange portion 12 and the cutout portion 15.
　但し、切欠部１５は、垂周壁部１３の内面下端側に設けられたレフィル側嵌合部１４も切り欠くものとする。本実施の形態において、垂周壁部１３には複数の切欠部１５が設けられる。そのため、レフィル側嵌合部１４は周方向略全周にわたって断続的に設けられる。 However, the notches 15 also cut out the refill-side fitting portion 14 provided on the lower end side of the inner surface of the vertical wall portion 13. In this embodiment, multiple notches 15 are provided in the vertical wall portion 13. Therefore, the refill-side fitting portion 14 is provided intermittently around almost the entire circumference.
　図２Ｂには、垂周壁部１３において等間隔（１２０°）に３つの切欠部１５が設けられた例を示している。但し、本発明において切欠部１５の数は図示例に限定されるものではない。例えば、垂周壁部１３に設けられる切欠部１５の数は２個以上１２個以下とすることができる。特に、３個以上１０個以下であることが好ましく、４個以上８個以下とすることも好ましい。 FIG. 2B shows an example in which three notches 15 are provided at equal intervals (120°) in the vertical wall portion 13. However, the number of notches 15 in the present invention is not limited to the illustrated example. For example, the number of notches 15 provided in the vertical wall portion 13 can be 2 to 12 inclusive. In particular, 3 to 10 inclusive is preferable, and 4 to 8 inclusive is also preferable.
　次に、図１を参照して外装容器２０について説明する。外装容器２０は、外装容器側側面部２１及び外装容器側底面部２２を有し、これらによって区画される天面側が開口する空間の内側にレフィル容器本体１１が収容される。また、外装容器側側面部２１の天面側には口部２３が設けられ、口部２３の外周面には蓋体３０を脱着可能に装着するためのネジ部２３ａと、レフィル容器１０を付け替え可能に取り付けるための外装容器側嵌合部２３ｂが設けられている。 Next, the outer container 20 will be described with reference to Figure 1. The outer container 20 has an outer container side portion 21 and an outer container side bottom portion 22, and the refill container body 11 is housed inside the space defined by these portions, which is open on the top side. In addition, a mouth portion 23 is provided on the top side of the outer container side portion 21, and the outer peripheral surface of the mouth portion 23 is provided with a screw portion 23a for removably attaching the lid body 30, and an outer container side fitting portion 23b for replaceably attaching the refill container 10.
　図１に示すように、外装容器側側面部２１及び外装容器側底面部２２はそれぞれレフィル容器本体１１側の側面部１１ｂ及び底面部１１ａと比較すると厚肉に構成されている。外装容器２０は、例えば、樹脂製、硝子製、金属製等とすることができる。樹脂製の場合、上記列挙した各樹脂の他、アクリル樹脂製などであってもよい。外装容器２０は、レフィル容器１０が付け替えられることで繰り返し使用される容器である。レフィル容器本体１１と比較して厚肉に構成することで、レフィル容器本体１１を単体で用いるには耐久性が不足する場合でも外装容器２０に取り付けることで十分な強度を実現することができる。そのため、レフィル容器本体１１を薄肉に構成して、プラスチック使用量の削減を図ることができる。 As shown in FIG. 1, the outer container side side portion 21 and the outer container side bottom portion 22 are configured to be thicker than the side portion 11b and bottom portion 11a of the refill container body 11, respectively. The outer container 20 can be made of, for example, resin, glass, metal, etc. If it is made of resin, it may be made of acrylic resin in addition to the resins listed above. The outer container 20 is a container that is used repeatedly by replacing the refill container 10. By configuring it to be thicker than the refill container body 11, sufficient strength can be achieved by attaching it to the outer container 20 even if the refill container body 11 is not durable enough to be used alone. Therefore, by configuring the refill container body 11 to be thin, the amount of plastic used can be reduced.
　外装容器側側面部２１の外面は外装容器側底面部２２から口部２３の下端に向かって緩やかに拡径されている。外装容器側側面部２１の内面は、底面側から天面側に向かって僅かに拡径されている。外装容器側側面部２１の勾配は極めて小さく、レフィル容器本体１１の側面部１１ｂの勾配より小さく設定されている。そのため、レフィル容器本体１１を外装容器２０に収容したときレフィル容器本体１１の側面部１１ｂと外装容器２０の内面との間に、天面側から底面部１１ａに向かうにつれて大きくなる隙間Ｇが形成される。なお、ここでいう外装容器側側面部２１の勾配は、中心軸線Ｏと外装容器側側面部２１とが成す角度をいうものとする。 The outer surface of the outer container side portion 21 gradually expands in diameter from the outer container side bottom portion 22 toward the lower end of the mouth portion 23. The inner surface of the outer container side portion 21 expands in diameter slightly from the bottom side toward the top side. The gradient of the outer container side portion 21 is extremely small, and is set to be smaller than the gradient of the side portion 11b of the refill container body 11. Therefore, when the refill container body 11 is placed in the outer container 20, a gap G is formed between the side portion 11b of the refill container body 11 and the inner surface of the outer container 20, which becomes larger from the top side toward the bottom portion 11a. Note that the gradient of the outer container side portion 21 here refers to the angle between the central axis O and the outer container side portion 21.
　口部２３の外周面には上記ネジ部２３ａと、外装容器側嵌合部２３ｂとが設けられている。図１に示すように、口部２３の外周面において、ネジ部２３ａの上方において、径方向内側に凹む段部２３ｃが設けられている。外装容器側嵌合部２３ｂは、口部２３の外周面であって、この段部２３ｃの上方に設けられている。以下、口部２３の段部２３ｃよりも上方の部分を先端部２３ｄと称する。口部２３の先端部２３ｄは、段部２３ｃの下方よりも肉薄に形成されている。外装容器側嵌合部２３ｂは先端部２３ｄの外面から径方向外側に突出する環状凸リブ（アンダーカット）として構成されている。 The outer peripheral surface of the mouth portion 23 is provided with the threaded portion 23a and the outer container side fitting portion 23b. As shown in FIG. 1, the outer peripheral surface of the mouth portion 23 is provided with a step portion 23c that is recessed radially inward above the threaded portion 23a. The outer container side fitting portion 23b is provided on the outer peripheral surface of the mouth portion 23 above this step portion 23c. Hereinafter, the portion of the mouth portion 23 above the step portion 23c will be referred to as the tip portion 23d. The tip portion 23d of the mouth portion 23 is formed thinner than the portion below the step portion 23c. The outer container side fitting portion 23b is configured as an annular convex rib (undercut) that protrudes radially outward from the outer surface of the tip portion 23d.
　蓋体３０は、内蓋部３１と外装蓋部３２とを備えている。
　内蓋部３１は、有天筒状を呈し、内蓋天壁部３１ａと、内蓋周壁部３１ｂを備えている。内蓋天壁部３１ａは、本実施の形態では略円板状を呈する。内蓋天壁部３１ａは、レフィル容器１０が外装容器２０に取り付けられた状態で、レフィル容器本体１１の天面を覆う。内蓋周壁部３１ｂは内蓋天壁部３１ａの外縁から垂設されており、内蓋天壁部３１ａの外縁を取り囲むように設けられる。内蓋周壁部３１ｂの内面にはネジ部３１ｃが設けられている。当該ネジ部３１ｃが、外装容器２０の口部２３側のネジ部２３ａに螺合することで、蓋体３０が外装容器２０の口部２３に脱着可能に装着される。内蓋周壁部３１ｂの外面には、その下端部において径方向外側に突出し、外装蓋部３２を内蓋部３１に係合するための内蓋側係合部３１ｄが設けられている。なお、内蓋天壁部３１ａの内面側には、内蓋天壁部３１ａの内面形状と略同形の平面形状を有するパッキン３３が設けられている。当該パッキン３３は、レフィル容器本体１１のフランジ部１２に設けられた環状凸リブ１２ａの上面に当接する。 The lid body 30 includes an inner lid portion 31 and an outer lid portion 32 .
The inner lid portion 31 has a top cylindrical shape and includes an inner lid top wall portion 31a and an inner lid peripheral wall portion 31b. In this embodiment, the inner lid top wall portion 31a has a substantially circular plate shape. The inner lid top wall portion 31a covers the top surface of the refill container body 11 when the refill container 10 is attached to the outer container 20. The inner lid peripheral wall portion 31b is suspended from the outer edge of the inner lid top wall portion 31a and is provided so as to surround the outer edge of the inner lid top wall portion 31a. A threaded portion 31c is provided on the inner surface of the inner lid peripheral wall portion 31b. The threaded portion 31c is screwed into the threaded portion 23a on the mouth portion 23 side of the outer container 20, so that the lid body 30 is detachably attached to the mouth portion 23 of the outer container 20. An inner lid side engaging portion 31d is provided on the outer surface of the inner lid peripheral wall portion 31b, protruding radially outward at its lower end portion, for engaging the exterior lid portion 32 with the inner lid portion 31. A packing 33 having a planar shape substantially the same as the inner shape of the inner lid top wall portion 31a is provided on the inner surface side of the inner lid top wall portion 31a. The packing 33 abuts against the upper surface of the annular protruding rib 12a provided on the flange portion 12 of the refill container body 11.
　外装蓋部３２は、内蓋部３１よりも一回り大きい有天筒状を呈し、外装蓋天壁部３２ａと、外装蓋周壁部３２ｂを備えている。外装蓋天壁部３２ａは、本実施の形態では、内蓋天壁部３１ａと同様に、略円板状を呈する。また、内蓋周壁部３１ｂと同様に、外装蓋周壁部３２ｂは外装蓋天壁部３２ａの外縁から垂設されており、外装蓋天壁部３２ａの外縁を取り囲むように設けられる。外装蓋周壁部３２ｂの内面には、径方向に凹む凹部として構成される外装蓋側係合部３２ｃが設けられている。この外装蓋側係合部３２ｃが内蓋側係合部３１ｄに係合することで、内蓋部３１と外装蓋部３２とが一体化されて、蓋体３０を構成する。 The outer lid portion 32 is a cylindrical shape with a top that is slightly larger than the inner lid portion 31, and includes an outer lid top wall portion 32a and an outer lid peripheral wall portion 32b. In this embodiment, the outer lid top wall portion 32a is generally disk-shaped, similar to the inner lid top wall portion 31a. Similarly to the inner lid peripheral wall portion 31b, the outer lid peripheral wall portion 32b is suspended from the outer edge of the outer lid top wall portion 32a and is provided so as to surround the outer edge of the outer lid top wall portion 32a. The inner surface of the outer lid peripheral wall portion 32b is provided with an outer lid side engagement portion 32c that is configured as a radially recessed recess. When this outer lid side engagement portion 32c engages with the inner lid side engagement portion 31d, the inner lid portion 31 and the outer lid portion 32 are integrated to form the lid body 30.
　内蓋部３１及び外装蓋部３２は、外装容器２０と同様の材料により構成することができる。また、内蓋部３１と外装蓋部３２とは同じ材料により構成されていてもよいし、内蓋部３１と外装蓋部３２とを異なる材料により構成してもよい。例えば、外装蓋部３２は、商品の種類に応じて、或いは所定の商品がリニューアルされる毎に各種の意匠を施し、内蓋部３１は、商品によらず共通部材とすることなども好ましい。 The inner lid portion 31 and the outer lid portion 32 can be made of the same material as the outer container 20. The inner lid portion 31 and the outer lid portion 32 may be made of the same material, or may be made of different materials. For example, it is preferable that the outer lid portion 32 has various designs depending on the type of product or each time a specific product is renewed, and the inner lid portion 31 is a common component regardless of the product.
　以上のように構成された付け替え容器１００において、外装容器２０からレフィル容器１０を取り外すための手順を説明する。なお、レフィル容器１０を外装容器２０から取り外すのは、内容物を使い終わり、レフィル容器本体１１の収容空間Ｓ内には内容物が実質的に存在せず、レフィル容器１０が空の状態であるものとする。 The procedure for removing the refill container 10 from the outer container 20 in the replacement container 100 configured as described above will be described below. Note that the refill container 10 is removed from the outer container 20 when the contents have been used up, there is essentially no content in the storage space S of the refill container body 11, and the refill container 10 is empty.
　まず、図１に示す状態から蓋体３０を逆ネジの方向に回し、蓋体３０を取り外して、図３Ａに示す状態とする。このとき、図３Ｂの一部拡大図に示すように、レフィル容器本体１１の側面部１１ｂと、フランジ部１２及び垂周壁部１３とにより構成される上記断面コ字状の挿入部１６に対して、口部２３の先端部２３ｄが挿入されており、フランジ部１２の下面は、口部２３の先端部２３ｄの天面に当接し、レフィル側嵌合部１４の凸部分が外装容器側嵌合部２３ｂの凸部分の下方に配置され、両者は嵌合状態にある。 First, from the state shown in Fig. 1, the lid 30 is turned in the reverse screw direction and removed to obtain the state shown in Fig. 3A. At this time, as shown in the partially enlarged view of Fig. 3B, the tip 23d of the mouth 23 is inserted into the above-mentioned U-shaped cross-section insertion portion 16 composed of the side portion 11b of the refill container body 11, the flange portion 12, and the vertical peripheral wall portion 13, the lower surface of the flange portion 12 abuts against the top surface of the tip 23d of the mouth 23, the convex portion of the refill side fitting portion 14 is positioned below the convex portion of the outer container side fitting portion 23b, and the two are in a fitted state.
　そして、空のレフィル容器本体１１の内側に指等を挿入し、例えば、図３Ａにおいて白抜矢印で示す位置などにおいて、側面部１１ｂを外装容器側側面部２１に押しつけるようにして押圧する。側面部１１ｂを押圧する位置は任意であるが、底面部１１ａに近い位置で押圧した方が、より小さな力で、レフィル容器１０を外装容器２０から簡易に取り外すことができる。そのため、レフィル容器本体１１の内側には、例えば、押圧部位などを示すための目印となる表示を設けてもよい。押圧部位を示すための目印となる表示として、丸印、星印、矢印等の各種記号や、「ここを押す」等の文字、これら記号と文字の組み合わせであってもよい。 Then, insert a finger or the like inside the empty refill container body 11 and press the side portion 11b against the side portion 21 of the outer container, for example, at the position indicated by the white arrow in Figure 3A. The position at which the side portion 11b is pressed is arbitrary, but pressing it at a position closer to the bottom portion 11a allows the refill container 10 to be easily removed from the outer container 20 with less force. For this reason, the inside of the refill container body 11 may be provided with a marking to indicate the area to be pressed, for example. Markings to indicate the area to be pressed may be various symbols such as a circle, star, arrow, or letters such as "press here", or a combination of these symbols and letters.
　上記押圧位置において側面部１１ｂを外装容器側側面部２１側に押圧すると、押圧位置における隙間Ｇの間隔（Ｇｗ）に応じた移動量で側面部１１ｂが外装容器側側面部２１側に移動しようとする。このとき当該押圧位置が力点となり、レフィル容器本体１１は中心軸線Ｏを挟んで押圧部位の反対側、レフィル容器本体１１のフランジ部１２と、外装容器２０の口部２３の先端部２３ｄとの当接部位（図４Ａ白抜矢印参照）が支点となり、レフィル容器本体１１が外装容器２０内において、上記移動量（Ｇｗ）に応じた所定の角度で傾斜（回動）しようとする。その際に、中心軸線Ｏを挟んで支点の反対側におけるフランジ部１２と、外装容器２０の口部２３の先端部２３ｄとの当接部位が作用点となり、当該作用点ではフランジ部１２を上に持ち上げようとする力が作用する。ここで、垂周壁部１３には上記切欠部１５が複数設けられており、作用点に作用する力は切欠部１５により分断されて、支点側には伝わらない。そのため、上記押圧位置で側面部１１ｂを押圧すると、まず、切欠部１５の切欠幅が広がりつつ、フランジ部１２が上方へ移動する。フランジ部１２が上方に持ち上げられると、これに伴い、垂周壁部１３も上方に移動し、レフィル側嵌合部１４の凸部分が外装容器側嵌合部２３ｂの凸部分を乗り越えて、両者の嵌合状態が解除する。 When the side portion 11b is pressed toward the outer container side portion 21 at the pressing position, the side portion 11b tries to move toward the outer container side portion 21 by an amount of movement corresponding to the width (Gw) of the gap G at the pressing position. At this time, the pressing position becomes the force point, and the refill container body 11 tries to tilt (rotate) at a predetermined angle corresponding to the amount of movement (Gw) within the outer container 20 at the abutment point between the flange portion 12 of the refill container body 11 and the tip portion 23d of the mouth portion 23 of the outer container 20 on the opposite side of the pressing position across the central axis O (see the white arrow in Figure 4A). At that time, the abutment point between the flange portion 12 on the opposite side of the fulcrum across the central axis O and the tip portion 23d of the mouth portion 23 of the outer container 20 becomes the point of action, and a force that tries to lift the flange portion 12 upward acts at the point of action. Here, the vertical wall portion 13 is provided with a plurality of the above-mentioned notches 15, and the force acting on the point of application is divided by the notches 15 and is not transmitted to the fulcrum side. Therefore, when the side surface portion 11b is pressed at the above-mentioned pressing position, first, the notch width of the notches 15 widens and the flange portion 12 moves upward. When the flange portion 12 is lifted upward, the vertical wall portion 13 also moves upward accordingly, and the convex portion of the refill side fitting portion 14 passes over the convex portion of the outer container side fitting portion 23b, and the fitting state between the two is released.
　図２Ｂに示した様に、本実施の形態のレフィル容器１０では切欠部１５が３個設けられ、垂周壁部１３（及びレフィル側嵌合部１４）は切欠部１５により３つに分断される。この分断される領域を便宜的に第一垂周壁部１３ａ、第二垂周壁部１３ｂ、第三垂周壁部１３ｃと称する。この３つの領域のうち、上記作用点が存在する側の領域が第一垂周壁部１３ａであるとする。第一垂周壁部１３ａにおいてレフィル側嵌合部１４と外装容器側嵌合部２３ｂとの嵌合状態が解除されると、残りの二つの領域においてもレフィル側嵌合部１４と外装容器側嵌合部２３ｂの嵌合状態に緩みが生じ、両者の嵌合状態を容易に解除することができる。或いは、第一垂周壁部１３ａにおいてレフィル側嵌合部１４と外装容器側嵌合部２３ｂとの嵌合状態が解除されても、他の領域において嵌合状態が維持されているときは、作用点となる部位を適宜選択し、上記と同様の手順を繰り返すことで、作用点側におけるレフィル側嵌合部１４と外装容器側嵌合部２３ｂとの嵌合状態を解除することができる。 As shown in FIG. 2B, the refill container 10 of this embodiment has three cutouts 15, and the vertical wall portion 13 (and the refill side fitting portion 14) is divided into three by the cutouts 15. For convenience, these divided areas are referred to as the first vertical wall portion 13a, the second vertical wall portion 13b, and the third vertical wall portion 13c. Of these three areas, the area on the side where the above-mentioned action point is located is assumed to be the first vertical wall portion 13a. When the fitting between the refill side fitting portion 14 and the outer container side fitting portion 23b is released in the first vertical wall portion 13a, the fitting between the refill side fitting portion 14 and the outer container side fitting portion 23b also loosens in the remaining two areas, allowing the fitting between the two to be easily released. Alternatively, even if the mating state between the refill side mating portion 14 and the outer container side mating portion 23b at the first vertical peripheral wall portion 13a is released, if the mating state is maintained in other areas, the mating state between the refill side mating portion 14 and the outer container side mating portion 23b at the point of action can be released by appropriately selecting a site that will be the point of action and repeating the same procedure as described above.
　以上説明したように、本実施の形態のレフィル容器１０は、垂周壁部１３に切欠部１５を設け、レフィル側嵌合部１４を断続的に外装容器側嵌合部２３ｂに嵌合させ、レフィル容器本体１１を外装容器２０に収容したときレフィル容器本体１１の側面部１１ｂと外装容器２０の内面との間に、天面側から底面部１１ａに向かうにつれて大きくなる隙間Ｇを設けるという簡易な構成により、てこの原理を利用して、レフィル容器１０を外装容器２０から小さな力で容易に取り外すことができる。また、本実施の形態のレフィル容器１０では、フランジ部１２をレフィル容器本体１１の天端の外縁に沿って開口面を囲むように設けられており、垂周壁部１３及びレフィル側嵌合部１４も切欠部１５により断続されているものの、略全周にわたってレフィル容器本体１１の側面部１１ｂを取り囲むように設けられている。これらによって構成される挿入部１６に外装容器２０の口部２３の先端部２３ｄを挿入することで、レフィル容器本体１１を外装容器２０に良好に保持させることができる。 As described above, the refill container 10 of this embodiment has a simple configuration in which the notch 15 is provided in the vertical wall portion 13, the refill side fitting portion 14 is intermittently fitted into the outer container side fitting portion 23b, and a gap G is provided between the side portion 11b of the refill container body 11 and the inner surface of the outer container 20 when the refill container body 11 is housed in the outer container 20, which increases from the top surface side toward the bottom surface portion 11a. This allows the refill container 10 to be easily removed from the outer container 20 with little force by utilizing the principle of leverage. In addition, in the refill container 10 of this embodiment, the flange portion 12 is provided along the outer edge of the top end of the refill container body 11 so as to surround the opening surface, and although the vertical wall portion 13 and the refill side fitting portion 14 are also interrupted by the notch 15, they are provided so as to surround the side portion 11b of the refill container body 11 over almost the entire circumference. By inserting the tip 23d of the mouth 23 of the outer container 20 into the insertion portion 16 formed by these components, the refill container body 11 can be held well in the outer container 20.
　また、上記実施の形態では、レフィル容器１０側において上記切欠部１５を設け、側面部１１ｂを、底面部１１ａを取り囲む周壁であって、底面部１１ａ側が天面側よりも、中心軸線Ｏに近接するように緩やかに傾斜する傾斜壁とすることで、外装容器２０については既に市場に流通している構成を変えることなく、外装容器側側面部２１との間に、天面側から底面部１１ａに向かうにつれて大きくなる隙間Ｇを設け、上記作用を得ることができる。 In addition, in the above embodiment, the notch 15 is provided on the refill container 10 side, and the side portion 11b is a peripheral wall surrounding the bottom portion 11a, and is an inclined wall that is gently inclined so that the bottom portion 11a side is closer to the central axis O than the top side. This allows the above effect to be obtained by providing a gap G between the outer container side portion 21 and the outer container 20, which becomes larger from the top side toward the bottom portion 11a, without changing the configuration of the outer container 20 that is already on the market.
　上記説明した本実施の形態の付け替え容器１００及びレフィル容器１０は、本発明の一態様であり、本発明は上記実施の形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲内において、適宜変更することができる。例えば、上記実施の形態では、上述のとおり、レフィル容器１０の側面部１１ｂを上記傾斜面としたが、当該側面部１１ｂを傾斜面とせずに、外装容器側側面部２１を外装容器側底面部２２側が口部２３側よりも、中心軸線Ｏに近接するように傾斜する傾斜壁としてもよい。この場合も、レフィル容器１０の側面部１１ｂと外装容器側側面部２１との間に、天面側から底面部１１ａに向かうにつれて大きくなる隙間Ｇが形成され、上記作用を得ることができる。なお、外装容器側側面部２１も僅かであるが傾斜を有するものとしたが、上記隙間Ｇが形成される限り、外装容器側側面部２１を傾斜面とするか否か、傾斜の向きなどは特に限定されるものではない。 The replacement container 100 and the refill container 10 of the present embodiment described above are one aspect of the present invention, and the present invention is not limited to the above embodiment, and can be modified as appropriate within the scope of the present invention. For example, in the above embodiment, the side surface 11b of the refill container 10 is the inclined surface as described above, but the side surface 11b may not be an inclined surface, and the outer container side side surface 21 may be an inclined wall inclined so that the outer container side bottom surface 22 side is closer to the central axis O than the mouth 23 side. In this case, too, a gap G is formed between the side surface 11b of the refill container 10 and the outer container side side surface 21, which becomes larger from the top surface side toward the bottom surface 11a, and the above-mentioned effect can be obtained. Note that the outer container side side surface 21 is also slightly inclined, but as long as the gap G is formed, there is no particular limitation on whether the outer container side side surface 21 is an inclined surface or not, and the direction of the inclination, etc.
　また、上記隙間Ｇは、上述のように側面部１１ｂを押圧したときに、レフィル側嵌合部の凸部分が外装容器側嵌合部２３ｂの凸部分を乗り越えることができるような大きさが確保されていればよい。 Furthermore, the gap G needs to be large enough so that when the side surface portion 11b is pressed as described above, the convex portion of the refill side fitting portion can overcome the convex portion of the outer container side fitting portion 23b.
　また、上記実施の形態では、フランジ部１２がレフィル容器本体１１の側面部１１ｂの天端に設けられるものとしたが、フランジ部１２は側面部１１ｂの天端に限らず、側面部１１ｂの天端の下方において外面から径方向外側に突出するように設けられていてもよい。上記実施の形態では、外装容器２０の口部２３に対してネジ部２３ａを設け、蓋体３０を外装容器２０に対して脱着可能に装着するものとしたが、例えば、側面部１１ｂの天端よりも下方にフランジ部１２を設けることにより、側面部１１ｂの外周面にネジ部を設け、蓋体３０をレフィル容器１０に脱着可能に装着するようにしてもよい。但し、フランジ部１２をレフィル容器本体１１の側面部１１ｂの天端に設けることで、プラスチックの使用量を削減することがより容易になる。 In the above embodiment, the flange portion 12 is provided on the top end of the side portion 11b of the refill container body 11, but the flange portion 12 is not limited to the top end of the side portion 11b, and may be provided below the top end of the side portion 11b so as to protrude radially outward from the outer surface. In the above embodiment, the screw portion 23a is provided on the mouth portion 23 of the outer container 20, and the lid body 30 is removably attached to the outer container 20. However, for example, by providing the flange portion 12 below the top end of the side portion 11b, a screw portion may be provided on the outer peripheral surface of the side portion 11b, and the lid body 30 may be removably attached to the refill container 10. However, by providing the flange portion 12 on the top end of the side portion 11b of the refill container body 11, it becomes easier to reduce the amount of plastic used.
　さらに、上記実施の形態では、レフィル容器本体１１の底面部１１ａを軸方向下方に凸の皿状又は球面状とするものとした。底面部１１ａをこのような形状とすることで、レフィル容器１０を直接机などの載置面上に開口面が軸方向上方を向くように安定した状態で載置することができなくなる。そのため、レフィル容器１０を外装容器２０に取り付けて使用うることを促すことができる。しかしながら、レフィル容器本体１１の底面部１１ａを平面としてもよく、底面部１１ａの形状は特に限定されるものではない。また、レフィル容器１０は主としてプラスチック製であることを想定しているが、耐水コート、或いは耐油コートが施された紙材などであってもよい。 Furthermore, in the above embodiment, the bottom surface 11a of the refill container body 11 is dish-shaped or spherical, convex downward in the axial direction. By making the bottom surface 11a in this shape, the refill container 10 cannot be placed directly on a support surface such as a desk in a stable state with the opening surface facing axially upward. This makes it possible to encourage the refill container 10 to be attached to an outer container 20 for use. However, the bottom surface 11a of the refill container body 11 may be flat, and the shape of the bottom surface 11a is not particularly limited. Furthermore, although the refill container 10 is mainly assumed to be made of plastic, it may also be made of paper with a water-resistant or oil-resistant coating.
１０　　　：レフィル容器
１１　　　：レフィル容器本体
１１ａ　　：底面部
１１ｂ　　：側面部
１２　　　：フランジ部
１２ａ　　：環状凸リブ
１３　　　：垂周壁部
１３ａ　　：第一垂周壁部
１３ｂ　　：第二垂周壁部
１３ｃ　　：第三垂周壁部
１４　　　：レフィル側嵌合部
１５　　　：切欠部
１６　　　：挿入部
１７　　　：残部
２０　　　：外装容器（外容器）
２１　　　：外装容器側側面部
２２　　　：外装容器側底面部
２３　　　：口部
２３ａ　　：ネジ部
２３ｂ　　：外装容器側嵌合部（外容器側嵌合部）
２３ｃ　　：段部
２３ｄ　　：先端部
３０　　　：蓋体
３１　　　：内蓋部
３１ａ　　：内蓋天壁部
３１ｂ　　：内蓋周壁部
３１ｃ　　：ネジ部
３１ｄ　　：内蓋側係合部
３２　　　：外装蓋部
３２ａ　　：外装蓋天壁部
３２ｂ　　：外装蓋周壁部
３２ｃ　　：外装蓋側係合部
３３　　　：パッキン
１００　　：付け替え容器
Ｇ　　　　：隙間
Ｏ　　　　：中心軸線
Ｓ　　　　：収容空間 10: Refill container 11: Refill container body 11a: Bottom surface portion 11b: Side surface portion 12: Flange portion 12a: Annular convex rib 13: Vertical peripheral wall portion 13a: First vertical peripheral wall portion 13b: Second vertical peripheral wall portion 13c: Third vertical peripheral wall portion 14: Refill side fitting portion 15: Cutout portion 16: Insertion portion 17: Remaining portion 20: Exterior container (outer container)
21: Outer container side side portion 22: Outer container side bottom portion 23: Opening portion 23a: Screw portion 23b: Outer container side fitting portion (outer container side fitting portion)
23c : Step 23d : Tip 30 : Lid 31 : Inner lid 31a : Inner lid top wall 31b : Inner lid peripheral wall 31c : Screw 31d : Inner lid side engagement 32 : Outer lid 32a : Outer lid top wall 32b : Outer lid peripheral wall 32c : Outer lid side engagement 33 : Gasket 100 : Replacement container G : Gap O : Central axis S : Storage space

Claims (4)

  1. 　内容物を収容する収容空間を有し、外容器に付け替えて使用されるレフィル容器であって、
    　前記収容空間を区画する底面部及び側面部を有し、天面が開口するレフィル容器本体と、
    　前記側面部から外側に突出するフランジ部と、
    　前記フランジ部の外縁から垂設され、前記レフィル容器本体の側面部を取り囲むように設けられる垂周壁部と、
    　前記垂周壁部の内面から前記レフィル容器本体側に突出するレフィル側嵌合部と、
    　前記垂周壁部において前記レフィル側嵌合部が設けられた部分を所定の切欠幅で切り欠く複数の切欠部と、
    　を備え、
    　前記レフィル容器本体を前記外容器に挿入したときに、前記レフィル側嵌合部と、前記外容器に設けられた外容器側嵌合部とが嵌合することで、当該レフィル容器が前記外容器に取り付けられ、
    　当該レフィル容器が前記外容器に取り付けられたとき、前記側面部と前記外容器の内面との間に、前記天面側から前記底面部に向かうにつれて大きくなる隙間が形成されるように前記側面部が構成される、レフィル容器。     A refill container having a storage space for storing contents and used by replacing it with an outer container,
    A refill container body having a bottom surface and a side surface that define the storage space and an open top surface;
    A flange portion protruding outward from the side surface portion;
    A vertical wall portion that is vertically extended from an outer edge of the flange portion and is provided so as to surround a side surface of the refill container body;
    a refill side fitting portion protruding from an inner surface of the vertical peripheral wall portion toward the refill container body;
    a plurality of cutouts formed by cutting out a portion of the vertical peripheral wall where the refill-side fitting portion is provided, the cutouts having a predetermined cutout width;
    Equipped with
    When the refill container body is inserted into the outer container, the refill side fitting portion and the outer container side fitting portion provided on the outer container are fitted together, thereby attaching the refill container to the outer container,
    The side portion is configured so that, when the refill container is attached to the outer container, a gap is formed between the side portion and the inner surface of the outer container that becomes larger from the top surface side toward the bottom surface side.
  2. 　前記切欠部が前記垂周壁部に２個以上１２個以下設けられる、請求項１に記載のレフィル容器。 The refill container according to claim 1, wherein the notches are provided in the vertical peripheral wall portion in a number of 2 to 12.
  3. 　前記側面部は、前記底面部側が前記天面側よりも、前記レフィル容器本体の中心軸に近接するように傾斜する傾斜壁である、請求項１に記載のレフィル容器。 The refill container according to claim 1, wherein the side portion is an inclined wall inclined so that the bottom surface side is closer to the central axis of the refill container body than the top surface side.
  4. 　請求項１～３のいずれか一項に記載のレフィル容器と、当該レフィル容器が付け替え可能に取り付けられる前記外容器とを備える付け替え容器。 A replacement container comprising the refill container according to any one of claims 1 to 3 and the outer container to which the refill container is replaceably attached.
PCT/JP2023/034435 2022-09-29 2023-09-22 Refill container and replacement container WO2024070926A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009179375A (en) * 2008-01-31 2009-08-13 Yoshino Kogyosho Co Ltd Pouring cap
JP2010052825A (en) * 2008-08-29 2010-03-11 Toppan Printing Co Ltd Paper-made refill container
JP2018140788A (en) * 2017-02-27 2018-09-13 株式会社吉野工業所 Refilling container
KR20210056643A (en) * 2019-11-11 2021-05-20 함형길 Cosmetic case having refill case
KR102281200B1 (en) * 2020-04-06 2021-07-26 주식회사 신우 Cosmetic container for easy to change refill case
JP2023028030A (en) * 2021-08-18 2023-03-03 エム・エフ・ヴィ株式会社 double container

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009179375A (en) * 2008-01-31 2009-08-13 Yoshino Kogyosho Co Ltd Pouring cap
JP2010052825A (en) * 2008-08-29 2010-03-11 Toppan Printing Co Ltd Paper-made refill container
JP2018140788A (en) * 2017-02-27 2018-09-13 株式会社吉野工業所 Refilling container
KR20210056643A (en) * 2019-11-11 2021-05-20 함형길 Cosmetic case having refill case
KR102281200B1 (en) * 2020-04-06 2021-07-26 주식회사 신우 Cosmetic container for easy to change refill case
JP2023028030A (en) * 2021-08-18 2023-03-03 エム・エフ・ヴィ株式会社 double container

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