Container and refill container

Abstract

To provide a container capable of easily aligning rotation positions of an inner container and an outer container easily when connecting a lid, and to provide a refill container.SOLUTION: A container includes: a lid part 20 where a screw part for a lid is provided; an inner container where an internal screw part is provided; and an outer container 80 where an outer screw part is provided and which is constituted so as to store the container inside. Pitches and inclination angles of the screw part for lid, the inner screw part, and the outer screw part are aligned, and the screw part for a lid is vertically fastened across the inner screw part and the outer screw part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to containers and refillable containers. [Background technology]

[0002] Conventionally, containers for storing contents such as cosmetic materials have been used (see, for example, Patent Document 1). As such a container, one that includes a lid, an inner container, and an outer container that stores the inner container is known. With this configuration, when the lid is rotated and the screw is tightened, the inner container is stored inside the outer container. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Registered Utility Model No. 3129312 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the above-mentioned container, there is a problem in that the inner and outer containers move relative to each other when the lid is rotated, making it difficult to determine their positions.

[0005] In view of the above, an object of the present invention is to provide a container and a refillable container that enable the rotational positions of the inner container and the outer container to be easily aligned when the lid is connected. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention provides the following means. The present invention comprises a lid portion provided with a lid thread portion, an inner container provided with an internal thread portion, and an outer container provided with an external thread portion and configured to accommodate the inner container therein, wherein the pitches and inclination angles of the lid thread portion, the internal thread portion and the external thread portion are aligned, and the lid thread portion is configured to be tightened vertically across the internal thread portion and the external thread portion. Effect of the Invention

[0007] According to one aspect of the present application, the rotational positions of the inner container and the outer container can be easily aligned when the lid is connected. [Brief description of the drawings]

[0008] [Figure 1] 1 is a front view showing a container and a refill container according to a first embodiment of the present invention. FIG. [Diagram 2] FIG. 2 is a cross-sectional view of the container and refill container of FIG. [Diagram 3] FIG. 3 is an exploded cross-sectional view of the container and refill container of FIG. 2. [Figure 4] FIG. 2 is an exploded front view of the container and refill container of FIG. [Diagram 5] 5A and 5B are diagrams showing the internal-use male thread portion and the external-use male thread portion of FIG. 4 in a simplified manner, where FIG. 5A is an explanatory diagram showing the internal-use male thread portion and the external-use male thread portion arranged apart in the vertical direction, and FIG. 5B is an explanatory diagram showing the internal-use male thread portion and the external-use male thread portion arranged close to each other in the vertical direction. [Figure 6] 2 is an explanatory diagram showing a schematic view of a female screw portion for a lid of the lid portion of FIG. 1. FIG. [Figure 7] FIG. 2 is a front view showing a container and a refill container according to a second embodiment of the present invention. [Figure 8] FIG. 8 is a cross-sectional view of the container and refill container of FIG. [Figure 9] FIG. 9 is an exploded cross-sectional view of the container and refill container of FIG. 8. [Figure 10] FIG. 8 is an exploded front view of the container and refill container of FIG. 7. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] (First embodiment) Hereinafter, a container and a refillable container according to an embodiment of the present invention will be described. FIG. 1 is a front view showing a container 1 and a refillable container 10 according to a first embodiment of the present invention. FIG. 2 shows a cross-sectional view of the container 1 and the refillable container 10. The container 1 comprises a refill container 10 and an outer container 80. The refill container 10 comprises a cover portion 20 and an inner container 40. In this specification, the vertical direction refers to the direction in which the lid portion 20, the inner container 40, and the outer container 80 are connected, and refers to the height direction H of each part.

[0010] The lid portion 20 includes a cap portion 21 and a lid connecting portion 22 . The cap portion 21 is made of a transparent resin and is formed in a cylindrical shape having a top surface. An engagement recess 21a is provided around the entire circumference of the lower end of the inner peripheral wall portion of the cap portion 21, and is recessed radially outward. The lid connecting portion 22 includes a pump portion 23 and a lid peripheral wall portion 24 . The pump section 23 is configured to suck up the contents contained in the inner container 40 by pressure and discharge them radially outward through the discharge port 231. A lid peripheral wall section 24 is connected to the pump section 23 so as to cover the lower part thereof from the radial direction. The lid peripheral wall 24 is made of resin and formed into a cylindrical shape. The upper part of the lid peripheral wall 24 is a small diameter part with a small diameter, and an engaging protrusion 24a that protrudes radially outward is provided on the outer circumferential wall of the small diameter part over the entire circumference. This engaging protrusion 24a is adapted to detachably engage with the engaging recess 21a of the cap part 21. The lower part of the lid peripheral wall part 24 is a large diameter part, and a female screw part for lid 26 (screw part for lid) is provided at the lower end part of the inner peripheral wall part 25 of the large diameter part. The details of the female screw part for lid 26 will be described later. The inner container 40 is removably connected concentrically to the lid peripheral wall portion 24 .

[0011] The inner container 40 is made of resin and is formed into a cylindrical shape with a bottom surface. The inner container 40 is adapted to accommodate an object to be contained therein. The inner container 40 has a cylindrical peripheral wall portion 41 and a disk-shaped bottom surface portion 42. An internal valley portion 45 having a large diameter and stepped radially outward is provided in an upper portion of the outer peripheral wall portion 43 of the peripheral wall portion 41. The internal valley portion 45 is provided over the entire circumferential length of the outer peripheral wall portion 43. An internal male thread portion 44 (internal thread portion) is provided in this internal valley portion 45. In other words, the internal valley portion 45 is an area in which the internal male thread portion 44 is provided. Details of the internal male thread portion 44 will be described later. The inner valley portion 45 is provided at its lower end with a triangular protrusion 45b that protrudes downward. The triangular protrusion 45b is in the shape of a right-angled triangle, extends vertically downward at one end in the circumferential direction, and extends downward at the other end such that the protruding dimension gradually becomes shorter. The bottom surface portion 42 is integrally connected to the lower end portion of the peripheral wall portion 41 . An outer container 80 capable of housing the inner container 40 therein is removably connected concentrically to the lid connecting portion 22 .

[0012] The outer container 80 is made of resin and has a cylindrical shape with a bottom surface. The outer container 80 includes a cylindrical peripheral wall portion 81 and a disk-shaped bottom surface portion 82. An external valley portion 85 having a small diameter and stepped radially inward is provided in an upper portion of the outer peripheral wall portion 83 of the peripheral wall portion 81. The external valley portion 85 is provided over the entire circumferential length of the outer peripheral wall portion 83. The external diameter dimension of the external valley portion 85 is set to be the same as the external diameter dimension of the internal valley portion 45. An external male thread portion 84 (external thread portion) is provided in this external valley portion 85. In other words, the external valley portion 85 is an area in which the external male thread portion 84 is provided. The external male thread portion 84 will be described in detail later. The upper end of the external valley portion 85 is provided with a downwardly recessed triangular recess 85b. The triangular recess 85b has a shape complementary to the triangular protrusion 45b. That is, the triangular recess 85b has a right-angled triangular shape, with one end in the circumferential direction sinking vertically downward and the other end sinking downward so that the depth dimension gradually decreases. This triangular recess 85b is adapted to be engaged with the triangular protrusion 45b. The bottom surface portion 82 is integrally connected to the lower end portion of the peripheral wall portion 81 .

[0013] Next, the internal male thread portion 44, the external male thread portion 84 and the lid female thread portion 26 will be described. FIG. 5 is an explanatory diagram showing the internal male thread portion 44 and the external male thread portion 84 in a simplified manner. FIG. 6 is an explanatory diagram showing the female screw portion 26 for the lid in a simplified manner. It goes without saying that in Figs. 5 and 6, the internal male thread portion 44, the external male thread portion 84 and the lid female thread portion 26 are shown in a simplified form for ease of explanation. The height dimensions of the threads of the internal male thread portion 44 and the external male thread portion 84 are set to be the same. In addition, the lid female thread portion 26 has a shape complementary to the internal male thread portion 44 and the external male thread portion 84, and the depth dimension of the female thread is set to be the same as the height dimension of the threads of the internal male thread portion 44 and the external male thread portion 84. The pitch P1 of the internal male thread portion 44, the pitch P2 of the external male thread portion 84, and the pitch P3 of the lid female thread portion 26 are set to be the same. In addition, the inclination angle θ1 of the internal male thread portion 44, the inclination angle θ2 of the external male thread portion 84, and the inclination angle θ3 of the lid female thread portion 26 are also set to be the same.

[0014] The lower cut end portion 44a of the internal male thread portion 44 is provided above the lower end portion 45a of the internal valley portion 45, and a clearance A1 is provided between the lower cut end portion 44a and the lower end portion 45a in the vertical direction. The lower cut end portion 44a refers to one end portion of the internal male thread portion 44 that is disposed on the lower side in the longitudinal direction. The upper cut start portion 84a of the external male thread portion 84 is provided below the upper end portion 85a of the external valley portion 85, and a clearance A2 is provided between the upper cut start portion 84a and the upper end portion 85a in the vertical direction. The upper cutting start portion 84a refers to one end portion of the external male thread portion 84 that is disposed on the upper side in the longitudinal direction.

[0015] 5(B), when the inner container 40 is accommodated inside the outer container 80, the lower end 45a of the inner valley portion 45 and the upper end 85a of the outer valley portion 85 come into contact with each other, so that the inner valley portion 45 and the outer valley portion 85 are adjacent to each other in the vertical direction. That is, at this time, the inner male thread portion 44 and the outer male thread portion 84 are arranged adjacent to each other in the vertical direction. Furthermore, at this time, when the lower end portion 45a and the upper end portion 85a are in contact with each other, the lower cut end portion 44a and the upper cut start portion 84a are arranged continuously on the imaginary straight line L in a front view. A clearance A is provided between the lower cut end portion 44a and the upper cut start portion 84a in a front view. The imaginary straight line L refers to an imaginary straight line that extends at the same inclination angles as the inclination angles θ1 and θ2 when viewed from the front.

[0016] In addition, since the outer diameter dimension of the internal valley portion 45 and the outer diameter dimension of the external valley portion 85 are set to be the same, in this case, when viewed from the front, the outer peripheral surface of the internal valley portion 45 and the outer peripheral surface of the external valley portion 85 are flush with each other, and the positions of the radial apexes of the internal male thread portion 44 and the external male thread portion 84 are aligned. In other words, the threads are arranged integrally in a continuous circumferential direction from the upper end of the internal male thread portion 44 to the lower end of the external male thread portion 84. In addition, when viewed from the front, the vertical dimension V1 from the upper end of the internal male thread portion 44 to the lower end of the external male thread portion 84 in the vertical direction is set to be the same as the vertical dimension V3 from the upper end to the lower end of the lid female thread portion 26. With this configuration, when the inner container 40 is placed inside the outer container 80, the internal male threaded portion 44 and the external male threaded portion 84 are arranged in the vertical direction, and the lid female threaded portion 26 is tightened vertically across the internal male threaded portion 44 and the external male threaded portion 84.

[0017] Next, how to use the container 1 and refillable container 10 in this embodiment will be described. First, the cap portion 21 is connected to the lid connecting portion 22. That is, the engaging recessed portion 21a and the engaging protruding portion 24a are detachably connected to each other. As a result, the cap portion 21 is detachably connected to the lid connecting portion 22 concentrically. Then, the inner container 40 is detachably and concentrically connected to the lid connecting part 22. That is, the upper end of the peripheral wall part 41 of the inner container 40 is inserted into the inside of the lid peripheral wall part 24, and the inner container 40 and the lid connecting part 22 are rotated relative to each other about the axis. Since the pitches P1, P3 and the inclination angles θ1, θ3 of the inner male screw part 44 and the lid female screw part 26 are set to be the same, the inner male screw part 44 is tightened to the lid female screw part 26. When the inner container 40 and the lid connecting part 22 are further rotated relative to each other in the same direction, the upper end of the peripheral wall part 41 comes into contact with the lower end of the pump part 23, so that further relative rotation in the same direction is restricted, and the inner container 40 is connected to the lid connecting part 22 at the innermost part of the lid connecting part 22. That is, the lower end of the pump part 23 functions as a restricting part that restricts the uppermost position of the inner container 40 relative to the lid connecting part 22. At this time, not only is the upper end of the internal male thread portion 44 positioned to coincide with the upper end of the lid female thread portion 26, but the rotational position of the inner container 40 relative to the lid connecting portion 22 is always positioned in the same position.

[0018] Furthermore, with the inner container 40 accommodated inside, the outer container 80 is detachably and concentrically connected to the lid connecting part 22. That is, the upper end of the peripheral wall part 81 of the outer container 80 is inserted inside the lid peripheral wall part 24, and the outer container 80 and the lid connecting part 22 are rotated relative to each other around the axis. Since the pitches P2, P3 and the inclination angles θ2, θ3 of the external male thread part 84 and the lid female thread part 26 are set to be the same, the external male thread part 84 is tightened to the lid female thread part 26, and the upper end part 85a of the external valley part 85 comes into contact with the lower end part 45a of the internal valley part 45. At this time, the rotational position of the outer container 80 relative to the lid connecting part 22 is always arranged at the same position, and the rotational positions of the inner container 40 and the outer container 80 are always arranged at the same position. At this time, the internal male thread portion 44 and the external male thread portion 84 are disposed adjacent to each other in the vertical direction with the triangular convex portion 45b and the triangular concave portion 85b engaged with each other, and the lid female thread portion 26 is fastened vertically across the internal male thread portion 44 and the external male thread portion 84. As a result, the outer container 80 is detachably connected to the lid connecting portion 22 with the inner container 40 accommodated inside.

[0019] When the outer container 80 and the lid connecting part 22 are rotated relative to each other about the axis, the lower cutting end part 44a of the internal male thread part 44 and the upper cutting start part 84a of the external male thread part 84 are continuously arranged on the imaginary straight line L, so that not only are the internal male thread part 44 and the external male thread part 84 smoothly fastened to the lid female thread part 26, but the rotational position of the outer container 80 relative to the lid connecting part 22 is always arranged in the same position. Therefore, the rotational positions of the inner container 40 and the outer container 80 relative to the lid connecting part 22 are always arranged in the same position. Furthermore, when the lower cut end portion 44a and the upper cut start portion 84a are arranged on the imaginary straight line L, clearances A, A1, A2 are provided, so that when the lid female threaded portion 26 is rotated, any play in the arrangement of the internal male threaded portion 44 and the external male threaded portion 84 is absorbed and the lid female threaded portion 26 is smoothly tightened from the internal male threaded portion 44 to the external male threaded portion 84. Furthermore, since the vertical dimension V1 from the internal male thread portion 44 to the external male thread portion 84 and the vertical dimension V3 of the lid female thread portion 26 are set to be the same, the lid female thread portion 26 is tightened from the internal male thread portion 44 to the external male thread portion 84 from top to bottom, thereby connecting the inner container 40 and the outer container 80 to the lid connecting portion 22.

[0020] In this state, the cap portion 21 is removed and the pump portion 23 is pressed to discharge the contents contained in the inner container 40 to the outside. When disassembling each component of the container 1, the above steps can be reversed. When refilling only the refillable container 10, the outer container 80 is removed by rotating the outer container 80 in the opposite direction to that described above with respect to the lid connecting portion 22, and a new refillable container 10 is connected to the outer container 80 in the same manner as described above.

[0021] As described above, according to the container 1 and refillable container 10 of this embodiment, the pitches P1, P2, P3 and inclination angles θ1, θ2, θ3 of the internal male thread portion 44, the external male thread portion 84 and the lid female thread portion 26 are set to be the same, and the lid female thread portion 26 is fastened vertically across the internal male thread portion 44 and the external male thread portion 84, so that the screw fastening start and end positions of the inner container 40 and the outer container 80 relative to the lid portion 20 can be aligned to the same position, and the rotational positions of the inner container 40 and the outer container 80 relative to the lid portion 20 can be easily aligned. Therefore, not only can the contents be properly accommodated, but the design of the inner container 40 and the outer container 80 can be improved. Furthermore, when the inner container 40 is accommodated inside the outer container 80, the internal male threaded portion 44 and the external male threaded portion 84 are arranged in the vertical direction, so that the lid female threaded portion 26 can be continuously tightened vertically across the internal male threaded portion 44 and the external male threaded portion 84.

[0022] Furthermore, when the inner container 40 is placed inside the outer container 80, the lower cut end portion 44a and the upper cut start portion 84a are arranged continuously on the imaginary straight line L, so that the lid female thread portion 26 can be continuously tightened up and down across the internal male thread portion 44 and the external male thread portion 84, and the rotational positions of the inner container 40 and the outer container 80 relative to the lid portion 20 can be easily aligned. Furthermore, when the lower cut end portion 44a and the upper cut start portion 84a are arranged on the imaginary straight line L, clearances A, A1, A2 are provided, so that when the lid portion 20 is rotated, any play in the arrangement of the internal male thread portion 44 and the external male thread portion 84 can be absorbed, and the lid female thread portion 26 can be smoothly tightened from the internal male thread portion 44 to the external male thread portion 84.

[0023] Furthermore, since the vertical dimension V3 of the lid female thread portion 26 is set to be the same as the vertical dimension V1 from the internal male thread portion 44 to the external male thread portion 84, not only can the lid portion 20 be properly tightened from the internal male thread portion 44 to the external male thread portion 84 from top to bottom, but the internal male thread portion 44 and the external male thread portion 84 can be covered from the outside, improving the design. Furthermore, since the refillable container 10 is provided, not only can the rotational positions of the inner container 40 and the outer container 80 relative to the lid portion 20 be easily adjusted, but the refillable container 10 can also be replaced while holding the outer container 80. Furthermore, since the triangular protrusion 45b and the triangular recess 85b are provided, the rotational positions of the inner container 40 and the outer container 80 can be easily aligned. When the outer container 80 is rotated in the coupling direction, the triangular protrusion 45b is guided by the inclined portion of the triangular protrusion 45b and engages with the triangular recess 85b, and in this state, the inner container 40 and the outer container 80 can be rotated while keeping their rotational positions aligned. On the other hand, when rotating in the non-coupling direction, the triangular protrusion 45b is guided by the inclined portion and disengaged from the triangular recess 85b, so that only the outer container 80 can be rotated in the non-coupling direction.

[0024] Second embodiment Next, a second embodiment of the present invention will be described. 7 to 10 show a container 1A and a refillable container 10A according to a second embodiment of the present invention. 7 to 10, the same components as those shown in FIGS. 1 to 6 are designated by the same reference numerals, and the description thereof will be omitted. This embodiment and the above-mentioned second embodiment have the same basic configuration, and the differences will be mainly described here. The container 1A and the refillable container 10A are configured as wide-mouthed jars, i.e., have a larger diameter than the container 1 and the refillable container 10.

[0025] The lid connecting part 22A is provided with a pump part 23A. The pump part 23A is configured to suck up the contents contained in the inner container 40 by pressure and discharge it upward through a discharge port 231A. The lid connecting part 22A is also provided with a lid top surface part 27 that supports the pump part 23A. The lid top surface part 27 is integrally connected to the lid peripheral wall part 24. The outer peripheral edge part of the lid top surface part 27 is formed as an upward recessed part 27A that is recessed upward. With this configuration, when the inner container 40 is rotated relative to the lid connecting part 22A, the upper end of the peripheral wall part 41 of the inner container 40 comes into contact with the upper recess 27A, and further rotation in the same direction is restricted. That is, the upper recess 27A functions as a restricting part. Furthermore, when the outer container 80 is rotated relative to the lid connecting part 22A, the outer container 80 is connected to the lid connecting part 22A with the inner container 40 accommodated inside in the same manner as described above. As described above, the container 1A and refillable container 10A in this embodiment can achieve the same effects as the container 1 and refillable container 10 described above.

[0026] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, when the inner container 40 is housed inside the outer container 80, the lower cut end portion 44a and the upper cut start portion 84a are arranged continuously on the imaginary straight line L in a front view, but this is not limited to this and the configuration can be changed as appropriate. Specifically, the internal male thread portion 44 and the external male thread portion 84 may be arranged on a circumferential line instead of on the imaginary straight line L, and they do not have to be arranged on a circumferential line as long as the lid female thread portion 26 can be tightened. In addition, when the inner container 40 is housed inside the outer container 80, the inner valley portion 45 and the outer valley portion 85 are said to come into contact with each other, but this is not limited to this and they may be arranged in a vertical direction without contacting each other.

[0027] In addition, when the lower cut end portion 44a and the upper cut start portion 84a are arranged on the imaginary straight line L, clearances A, A1, A2 are provided, but this is not limited to this and at least one of the clearances A, A1, A2 may not be provided, or the lower cut end portion 44a and the upper cut start portion 84a may be arranged continuously in contact without providing all of the clearances A, A1, A2. In addition, although the vertical dimension V1 and the vertical dimension V3 are set to be the same, this is not limited thereto, and the configuration can be changed as appropriate. For example, the vertical dimension V3 may be set to be greater than the vertical dimension V1, or may be set to be smaller than the vertical dimension V1.

[0028] In addition, although the triangular protrusions 45b and the triangular recesses 85b are provided, the present invention is not limited to this and the configuration can be changed as appropriate. For example, the shape of the protrusions and recesses may be a circle, a polygon, or another shape, and the triangular protrusions 45b and the triangular recesses 85b may not be provided. In addition, although the outer diameter dimensions of the inner valley portion 45 and the outer valley portion 85 are set to be the same, this is not limited thereto, and the configuration can be changed as appropriate. For example, one of them may be set to be larger radially outward than the other. In addition, when the inner container 40 is placed inside the outer container 80, the positions of the apexes of the internal male thread portion 44 and the external male thread portion 84 in the radial direction are said to coincide, but this is not limited thereto, and the configuration can be changed as appropriate. For example, the positions of the apexes do not have to coincide in the radial direction. In addition, although the height dimension of the threads of the internal male thread portion 44 and the external male thread portion 84 and the depth dimension of the lid female thread portion 26 are set to be the same, this is not limited thereto, and the configuration can be changed as appropriate. For example, as long as the lid female thread portion 26 is fastened vertically across the internal male thread portion 44 and the external male thread portion 84, the height dimension and the depth dimension may be different.

[0029] In addition, although the cover portion 20 is described as including the pump portion 23, 23A, the configuration is not limited thereto and can be changed as appropriate. For example, a configuration other than a pump may be used, or the pump portion 23, 23A may not be provided. In addition, the cap portion 21 may be fixed to the cover connecting portion 22, 22A, or the cap portion 21 may not be provided. In the first embodiment, the lower end of the pump unit 23 functions as the restricting unit, but the present invention is not limited to this, and the configuration can be changed as appropriate. For example, a lid top surface portion that functions as the restricting unit may be provided below the pump unit 23. In the second embodiment, the lid top surface portion 27 functions as the restricting portion, but the present invention is not limited to this, and the configuration can be changed as appropriate. For example, the lower end portion of the pump portion 23A may function as the restricting portion. In addition, the restricting portion is in contact with the upper end of the inner container 40 to restrict the rotation, but the present invention is not limited to this and the configuration can be changed as appropriate. For example, the restricting portion may be an uneven portion or other configuration that restricts the rotation of the internal male screw portion 44.

[0030] In addition, the threaded portion of the lid 20 is the female lid threaded portion 26, and the threaded portions of the inner container 40 and the outer container 80 are the internal male threaded portion 44 and the external male threaded portion 84, but this is not limiting and the configuration can be changed as appropriate. For example, the lid 20 may be provided with a male lid threaded portion, and the inner container 40 and the outer container 80 may be provided with an internal female threaded portion and an external female threaded portion, respectively. In addition, although the inner container 40 and the outer container 80 are cylindrical with a bottom, the present invention is not limited to this and the configuration can be changed as appropriate. For example, the inner container 40 and the outer container 80 may be rectangular tubular or have other shapes. Furthermore, the contained items are not limited to cosmetic materials, but can be changed as appropriate to liquids, solids, powders, gel-like materials, etc. Moreover, although the container 1 is made of resin, the present invention is not limited to this and the configuration can be changed as appropriate. For example, the container 1 may be made of glass or the like. In addition, the order of assembling and removing the lid part 20, the inner container 40, and the outer container 80 can be changed as appropriate. For example, the inner container 40 may be housed inside the outer container 80, and the inner container 40 and the outer container 80 may be connected by rotating them relative to the lid connecting parts 22, 22A.

[0031] The following additional notes are given with respect to the above-described embodiment. (Appendix 1) a lid portion provided with a lid screw portion; an inner container provided with an internal thread; an outer container having an external thread portion and configured to accommodate the inner container therein; The pitch and inclination angle of the lid thread portion, the internal thread portion, and the external thread portion are aligned, The lid thread is configured to be fastened vertically across the internal thread and the external thread.

[0032] (Appendix 2) 2. The container according to claim 1, wherein the inner thread portion and the outer thread portion are arranged in a vertical direction when the inner container is placed inside the outer container.

[0033] (Appendix 3) A container as described in Appendix 1 or Appendix 2, which is configured so that, when the inner container is placed inside the outer container, the end of the lower cutting of the internal thread portion and the beginning of the upper cutting of the external thread portion are continuously arranged on the same line.

[0034] (Appendix 4) The lower end of the internal thread is provided above the lower end of the root portion, The upper cutting start of the external thread portion is provided below the upper end of the valley portion, The container according to claim 3, wherein when the inner container is accommodated inside the outer container, a clearance is provided between the end of the lower cut and the beginning of the upper cut.

[0035] (Appendix 5) A container as described in Appendix 1 or Appendix 2, wherein the vertical dimension of the lid thread portion is equal to or greater than the combined vertical dimension of the internal thread portion and the external thread portion.

[0036] (Appendix 6) A refillable container that is removably connected to an outer container having an external threaded portion, a lid portion provided with a lid screw portion; an inner container provided with an internal thread portion and configured to be accommodated inside the outer container; The pitch and inclination angle of the lid thread portion, the internal thread portion, and the external thread portion are aligned, The refillable container is configured so that the lid threads can be fastened vertically across the internal threads and the external threads. [Explanation of symbols]

[0037] 1,1A container 10,10A Refillable container 20 Lid 26 Female screw part for lid (screw part for lid) 40 Inner container 44 Internal male thread (internal thread) 44a Lower cut end 45 Inner valley (valley) 45a Lower end 80 Outer container 84 External male thread (external thread) 85 External valley (valley) 85a Upper end 84a Upper cutting start part A Clearance H Height direction (up and down direction) P1, P2, P3 pitch V1, V3 Vertical dimension (up-down dimension) θ1, θ2, θ3 inclination angles

Claims

1. a lid portion provided with a lid screw portion; an inner container provided with an internal thread; an outer container having an external thread portion and configured to accommodate the inner container therein; The pitch and inclination angle of the lid thread portion, the internal thread portion, and the external thread portion are aligned, A container in which the lid threads are configured to be fastened vertically across the internal threads and the external threads.

2. 2. The container according to claim 1, wherein the internal thread portion and the external thread portion are arranged vertically when the inner container is housed inside the outer container.

3. 3. The container according to claim 1 or 2, wherein when the inner container is placed inside the outer container, the end of the lower thread of the internal thread portion and the beginning of the upper thread of the external thread portion are arranged continuously on the same line.

4. The lower end of the internal thread is provided above the lower end of the root portion, The upper cutting start of the external thread portion is provided below the upper end of the valley portion, 4. The container according to claim 3, wherein when the inner container is housed inside the outer container, a clearance is provided between the end of the lower cut and the beginning of the upper cut.

5. 3. The container according to claim 1, wherein the vertical dimension of the lid thread portion is equal to or greater than the combined vertical dimension of the internal thread portion and the external thread portion.

6. A refillable container that is removably connected to an outer container having an external threaded portion, a lid portion provided with a lid screw portion; an inner container provided with an internal thread portion and configured to be accommodated inside the outer container; The pitch and inclination angle of the lid thread portion, the internal thread portion, and the external thread portion are aligned, The refillable container is configured so that the lid threads can be fastened vertically across the internal threads and the external threads.

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