container

Abstract

To provide a container which is a rotary container and from which contents are not discharged at the time of opening and closing of a lid.SOLUTION: The container includes: an inner container capable of accommodating contents therein and having an opening on an upper part; a stage capable of moving up and down together with the contents through rotation of the inner container; a top surface having a peripheral wall fitted to the inner container and an opening; a lid body covering the inner container and the top surface; an outer container housing the inner container and having an opening; and an inner cap rotatable relatively to the lid body and rotatable together with the inner container, wherein multiple grooves are formed on an inner peripheral wall or an outer peripheral wall of the opening of the outer container, multiple protrusions are formed to protrude from a lower end of the peripheral wall of the inner cap, and the inner cap is positioned with respect to the outer container by engaging the multiple grooves and the protrusions.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a container. [Background technology]

[0002] 2. Description of the Related Art Conventionally, containers that discharge a predetermined amount of content in response to an external force are known.

[0003] For example, Patent Document 1 discloses a sliding inner plate type dispensing container that applies an external force to the container to vary the internal pressure of the container body and dispenses the contents contained in the container body. The sliding inner plate type dispensing container disclosed in Patent Document 1 includes a topped cylindrical container body, a dispensing member having a discharge hole for dispensing the contents, and an inner plate that is fitted in the container body so as to be slidable toward the discharge hole. The discharge member has a fixed part and a moving part, and when the top wall part of the container body is pushed in, the moving part and the fixed part come close to each other, so that the contents of the container body can be dispensed from the discharge hole. In addition, the moving part is provided with a rotation operation part that has a discharge position that allows the fixed part and the moving part to come close to each other and a restricting position that restricts the proximity of the moving part, so that the top wall part is not inadvertently pushed in during circulation or in a standby state before dispensing the contents.

[0004] Furthermore, Patent Document 1 describes that after the contents of the container body have been used up, the discharge member can be attached to a new container body filled with the contents, and the discharge member can be reused as a refill container.

[0005] Also, a rotary container is known that discharges a predetermined amount of solid material by rotating the container at a certain angle (Patent Document 2). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2015-127223 A [Patent Document 2] Patent No. 4868400 Summary of the Invention [Problem to be solved by the invention]

[0007] In the configuration disclosed in Patent Document 1, when discharging the contents, the user presses down on the top wall. This brings the moving part and the fixed part closer together, and the contents are discharged from the discharge hole. At this time, the amount of the contents discharged varies depending on the force (load) with which the user presses down on the top wall, and there are cases in which the desired amount cannot be discharged.

[0008] In contrast, in a rotating container as described in Patent Document 2, particularly when the contents are not solid but fluid and the container filled with the contents is used as a refill container (inner container), typically, an inner container filled with the contents, an outer container to which the inner container is attached, and a lid that closes the openings of the outer container and the inner container are provided. A seal (packing) is provided between the lid and the opening of the inner container to prevent the contents in the inner container from leaking.

[0009] However, when the lid is rotated relative to the outer container or inner container to remove it, or when the lid is rotated to close it, the top surface of the inner container or outer container and the inner surface of the lid are sealed in close contact with each other, causing the inner container or outer container to rotate as the lid rotates, which may result in the liquid contents being ejected.

[0010] In view of the above, an object of one aspect of the present invention is to provide a rotating container in which the contents are not ejected when the lid is opened or closed. [Means for solving the problem]

[0011] A container according to a first aspect of the present invention comprises an inner container capable of containing contents therein and having an opening at an upper portion, a stage capable of moving up and down together with the contents by rotation of the inner container, a peripheral wall that fits into the inner container, a top surface having an opening, a lid that covers the inner container and the top surface, an outer container having an opening and containing the inner container, and an inner cap that is rotatable relative to the lid and can rotate together with the inner container; a cross-sectional shape of an inner circumferential surface of the inner cap perpendicular to a central axis of the inner container is a polygon, and a cross-sectional shape of an outer circumferential surface of a peripheral wall of the inner container and a cross-sectional shape of an outer circumferential surface of a peripheral wall of the top surface perpendicular to the central axis of the inner container are polygons corresponding to the inner circumferential surface of the inner cap,A plurality of grooves are formed on the inner or outer peripheral wall of the opening of the outer container, and a plurality of protrusions are formed on the lower end of the peripheral wall of the inner cap, By placing the lid body over the inner container, the inner circumferential surface of the inner cap, the outer circumferential surface of the peripheral wall of the top surface, and the outer circumferential surface of the peripheral wall of the inner container are positioned and engaged with each other, and the inner cap, the top surface, and the inner container are non-rotatably engaged with each other, and the lid body becomes rotatable with respect to the inner cap, the top surface, and the inner container. The grooves and the protrusions engage with each other to position the inner cap relative to the outer container.

[0012] A container according to a second aspect of the present invention comprises an inner container capable of containing contents therein and having an opening at an upper portion, a stage capable of moving up and down together with the contents by rotation of the inner container, a peripheral wall that fits into the inner container, a top surface having an opening, a lid that covers the inner container and the top surface, an outer container having an opening and containing the inner container, and an inner cap that is rotatable relative to the lid and can rotate together with the inner container; a cross-sectional shape of an inner circumferential surface of the inner cap perpendicular to a central axis of the inner container is a polygonal positioning shape, and cross-sectional shapes of an outer circumferential surface of a peripheral wall of the inner container and an outer circumferential surface of a peripheral wall of the top surface perpendicular to the central axis of the inner container are each a polygonal positioning shape corresponding to the inner circumferential surface of the inner cap, At least one of the positioning shape of the inner cap and the positioning shape of the top surface has a guide that engages with the positioning shape of the inner cap and the positioning shape of the top surface. By placing the lid body over the inner container, the inner surface of the inner cap and the outer surface of the peripheral wall of the top surface and the outer surface of the peripheral wall of the inner container are positioned and engaged, and the inner cap, the top surface, and the inner container are non-rotatably engaged, and the lid body becomes rotatable relative to the inner cap, the top surface, and the inner container. Effect of the Invention

[0013] According to one aspect of the present invention, a rotary container can be provided in which the contents are not ejected when the lid is opened or closed. [Brief description of the drawings]

[0014] [Figure 1] FIG. 2 is a cross-sectional view of a container according to a first embodiment. [Diagram 2] FIG. 2 is a cross-sectional view of FIG. [Diagram 3] FIG. 2 is a perspective view of the container according to the first embodiment with the lid open. [Figure 4] 1. FIG. 4 is a diagram showing an engagement state between the inner cap and the outer container as viewed from the inner peripheral wall side of the opening of the outer container in part A of FIG. [Diagram 5] FIG. 2 is a partially exploded perspective view of the container according to the first embodiment. [Figure 6] FIG. 4 is a cross-sectional view of a container according to a second embodiment. [Figure 7] FIG. 7 is an enlarged view of part B in FIG. [Figure 8] FIG. 11 is a perspective view of a lid for a container according to a second embodiment. [Figure 9] FIG. 11 is a perspective view of a container according to a third embodiment with the lid open. [Figure 10] FIG. 10 is an enlarged view of part D in FIG. [Figure 11] FIG. 10 is an enlarged view of part C in FIG. [Figure 12] 13A and 13B are diagrams showing the engagement state between the inner cap and the top surface of a container according to a third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] In the following description, in order to facilitate understanding, the scale of each component in the drawings may differ from the actual scale.

[0016] In this specification, a three-dimensional orthogonal coordinate system with three axial directions (X-axis, Y-axis, and Z-axis) may be used for explanation. In this case, the direction parallel to the central axis CL of the container is defined as the Z-axis direction, and on a plane perpendicular to the central axis CL, one of two mutually perpendicular directions is defined as the X-axis direction, and the other is defined as the Y-axis direction. Also, the +Z-axis direction may be referred to as up, and the -Z-axis direction may be referred to as down.

[0017] First Embodiment A container 100 according to a first embodiment of the present invention will be described. Fig. 1 is a cross-sectional view of the container 100 according to the first embodiment, and Fig. 2 is a cross-sectional view taken along line II in Fig. 1. Fig. 3 is a perspective view of the container 100 according to the first embodiment with the lid 14 open. Fig. 4 is a view showing an engagement state between the inner cap 15 and the outer container 12 as viewed from the inner peripheral wall 121a side of the opening 121 of the outer container 12 in part A in Fig. 1. Fig. 5 is a perspective view of a part of the container 100 according to the first embodiment, which is disassembled.

[0018] As shown in Figures 1 to 5, in this embodiment, the container 100 comprises an inner container 11 having an opening 111, an outer container 12 that accommodates the inner container 11, a top surface 13 that covers the opening 111 of the inner container 11, and a lid 14 that covers the inner container 11 and the top surface 13.

[0019] The inner container 11 is a cylindrical container with an open top and a closed bottom, and contains the contents. In this embodiment, a container that discharges a fluid as the contents will be described, but the inner container 11 may be a container that discharges a solid as the contents.

[0020] The fluid discharged by the container 100 according to the present embodiment is not limited as long as it exhibits fluidity at least when discharged and can be pushed out of the container 100 from the opening 132 of the container 100. The fluid may be a liquid, for example, a pure liquid or a liquid mixture. Furthermore, the fluid may be, for example, a solution, and a dispersion such as an emulsion or a suspension, and may be in a state called a gel, a slurry, a paste, a cream, or the like. The fluid may contain a powder, may contain a powder as a main component, or may be substantially composed of a powder or may consist of a powder. The fluid may be a mixture of the above-mentioned fluid and a gas such as nitrogen, a rare gas, or air, and be contained in the inner container 11 in a foam state. The fluid may also be a paste or cream having a viscosity similar to or higher than that of water.

[0021] The fluid may be skin care products or basic cosmetics such as lotion, milky lotion, face cream, beauty serum, facial cleanser, cleansing agent, etc.; makeup cosmetics such as foundation, makeup base, concealer, liquid eye shadow, liquid blush, liquid lip product, etc.; personal care products (hygienic products) such as sunscreen, hand soap, body soap, hair shampoo, hair dye, styling agent, hand cream, body cream, body lotion, etc.; fragrance products, etc.

[0022] When the content is a solid, the solid may be a solid cosmetic such as a particularly hard hair stick, hair wax, lipstick, solid beauty essence (e.g., one with a similar hardness to a stick beauty essence), or a semi-solid cosmetic, solid soap, or food such as cheese or butter. The solid substance may be set by being filled in the inner container 11 in advance, by being filled by replacing the entire inner container 11 as a refill, or by filling the replaced solid substance into the inner container 11 later.

[0023] The inner container 11 has an opening 111 at the top, and is provided with a peripheral wall 112 which is a side surface, a bottom surface 113, an engagement cylinder part 114 provided in the center of the bottom surface 113 and protruding upward (in the +Z axis direction), and a fitting hole 115 formed by communicating the lower side (in the -Z axis direction) of the engagement cylinder part 114 with the outside. A support cylinder part 124 of the outer container 12 is inserted into the fitting hole 115. Furthermore, the inner container 11 is provided with a stage 16 and a spiral cylinder 17 inside.

[0024] The spiral tube 17 is a shaft-shaped tube extending in the vertical direction, and has a male screw 171 formed on its outer circumferential surface. The spiral tube 17 has an inner circumferential surface 172 with an open lower end at the center. That is, the spiral tube 17 has a shape of a bottomed hollow cylinder with the bottom located at the top. In addition, a circular groove 173 that opens at the bottom and goes around is formed between the inner circumferential surface 172 and the male screw (outer circumferential surface) 171, and the engagement tube portion 114 of the inner container 11 is inserted inside. As a result, the spiral tube 17 is fixed to the inner container 11 in a rotatable manner. The relationship between the inner container 11 and the spiral tube 17 will be described later. Furthermore, the support tube portion 124 of the outer container 12 is inserted into the inner circumferential surface 172 of the hollow cylinder of the spiral tube 17. As a result, the spiral tube 17 is fixed to the outer container 12 in a non-rotatable manner. In other words, the spiral tube 17 rotates integrally with the outer container 12. The inner surface 172 of the spiral cylinder 17, the support cylinder portion 124 of the outer container 12, and the engagement cylinder portion 114 of the inner container 11 are arranged coaxially and coincide with the central axis CL (rotational center axis) of the inner container 11 and the outer container 12.

[0025] The stage 16 is disposed so as to be movable up and down inside the inner container 11, as the spiral tube 17 rotates due to the rotation of the outer container 12 relative to the inner container 11, and the female thread 162 of the stage 16 that screws into the male thread 171 of the spiral tube 17 is interlocked with the female thread 162 of the stage 16. That is, a hole 161 is formed in the center of the stage 16 in the vertical direction, and a female thread 162 is formed on the inner peripheral surface of the hole 161. The stage 16 is unrotatable relative to the inner peripheral surface of the inner container 11 but movable up and down. As a configuration for being unrotatable relative to the inner peripheral surface of the inner container 11 but movable up and down, for example, a convex portion in the Z-axis direction (not shown) is formed on one side of the inner peripheral surface of the inner container 11 and the outer peripheral surface of the stage 16 facing the inner peripheral surface of the inner container 11 of the stage 16, and a corresponding groove portion in the Z-axis direction is formed on the other side. The outer peripheral surface of the stage 16 and the inner peripheral surface of the inner container 11 are in liquid-tight contact with each other so that the contents filled in the inner container 11 do not leak below the stage 16.

[0026] As shown in Fig. 2, the spiral cylinder 17 has a circular groove 173 at its lower end, into which the engaging tube portion 114 of the inner container 11 is inserted. A plurality of claws 175 are formed on the inner peripheral surface of the circular groove 173. Each claw 175 has, on one side, a surface that is approximately perpendicular to the inner peripheral surface of the circular groove 173, and, on the other side, an inclined surface that is inclined. Fig. 2 shows an example in which four claws 175 are formed.

[0027] Furthermore, a number of protrusions 116 are formed at equal intervals in the circumferential direction on the outer circumferential surface of the engagement tube portion 114 of the inner container 11. The protrusions 116 are also composed of a substantially vertical surface on one side and an inclined surface inclined on the other side. FIG. 2 shows an example in which 20 protrusions 116 are formed. The protrusions 116 of the inner container 11 and the pawl 175 of the spiral tube 17 form a ratchet mechanism 190 having a gear and a pawl. That is, in FIG. 2, the inner container 11 is rotated in a direction D. r1 When the outer container 12 is rotated in the direction D r2When the stage 16 rotates to the left (when the stage 16 rotates to the right), the protrusion 116 climbs over the claws 175 and becomes rotatable. At this time, each time one protrusion 116 and one claw 175 climbs over the other's inclined surface, the inner container 11 or the outer container 12 rotates by a certain angle, and in conjunction with this, the stage 16 can also be raised by a certain distance.

[0028] In the case of FIG. 2, rotation is possible every 18 degrees. Therefore, the contents pushed out by the upper surface of the stage 16 and discharged from the opening 132 of the top surface 13 can be discharged at a constant amount. In addition, a clicking sound is generated every time one protrusion 116 and one claw 175 overcome each other's inclined surfaces, thereby alerting the user that a constant amount of the contents has been discharged. The interval at which the protrusions 116 and the claws 175 are arranged can be appropriately changed according to the rotation angle of the inner container 11 or the outer container 12, the amount of the contents to be discharged, and the like. The rotation angle of the inner container 11 or the outer container 12 required for one protrusion 116 and one claw 175 to overcome each other's inclined surfaces is preferably 5 to 60 degrees, and more preferably 10 to 30 degrees. This allows the contents to be discharged at a constant amount regardless of the magnitude of the external force applied by the user to the container 100. In addition, the force required to discharge the contents is smaller than that required for a push-type container, thereby reducing the burden on the user.

[0029] The ratchet mechanism 190 rotates the inner container 11 in the rotation direction D r1 When the outer container 12 is rotated in the opposite direction to the rotation direction D r2 2, the inner container 11 or the outer container 12 can only rotate in the direction that raises the stage 16, and the stage 16 cannot descend.

[0030] Furthermore, when the stage 16 is configured to move up and down, this can be achieved by forming the approximately vertical surfaces of the projection 116 and the claw 175 into inclined surfaces.

[0031] Furthermore, when the structure is such that the content is not discharged in a fixed amount but in an arbitrary amount, this can be achieved by omitting the ratchet mechanism described above.

[0032] The top surface 13 has a peripheral wall 131 that fits into the inner container 11 and an opening 132 for discharging the contents to the outside. A valve body 18 may be disposed in the opening 132. The top surface 13 is fixed to the inner container 11 so as to cover the opening 111 of the inner container 11. In the embodiment shown in FIG. 1, the valve body 18 rises as the internal pressure of the contents filled in the inner container 11 increases with the rise of the stage 16, and the contents are discharged onto the upper surface of the top surface 13 from between the valve body 18 that has risen and the top surface 13. As a result, the user touches only the discharged used contents, and can use the contents without touching the unused contents, and the contents can be stored hygienically. If the contents are solid, the valve body 18 does not need to be provided, and the top surface 13 can be configured to accommodate solids.

[0033] The outer container 12 is a bottomed cylindrical container having an opening 121 at the top, and contains the inner container 11. The opening 121 of the outer container 12 is located below the opening 111 of the inner container 11 when the inner container 11 is contained in the outer container 12. Furthermore, the outer container 12 has a peripheral wall 122 which is a side surface, a bottom surface 123, and a support tube part 124 provided at the center of the bottom surface 123 and protruding upward. The support tube part 124 is inserted into the inner circumferential surface 172 of the hollow cylinder of the spiral tube 17. The cross-sectional shape of the support tube part 124 perpendicular to the central axis CL is octagonal as shown in FIG. 2, and the cross-sectional shape of the inner circumferential surface 172 of the spiral tube 17 is also octagonal, whereby the spiral tube 17 is fixed to the outer container 12 in an unrotatable manner. The cross-sectional shape of the support tube part 124 and the cross-sectional shape of the inner peripheral surface 172 of the spiral tube 17 are not limited to an octagonal shape, and may be any shape as long as they are fixed so as not to rotate. With this configuration in which the support tube part 124 and the spiral tube 17 are fixed, for example, when the outer container 12 is rotated in a predetermined direction relative to the inner container 11, the spiral tube 17 also rotates at the same time, and the rotation of the spiral tube 17 causes the stage 16 to rise inside the inner container 11.

[0034] The lid 14 has an upper surface portion 141 and a peripheral wall 142. In this embodiment, the upper surface portion 141 and the peripheral wall 142 are separate bodies, but they may be formed as one body. A gasket 19 is provided on the inside of the upper surface portion 141. The gasket 19 is for preventing the contents in the inner container 11 from leaking to the outside through the opening 132 of the top surface 13, so that the gasket 19 and the top surface 13 need to be in close contact with each other. The lid 14 is a so-called screw lid, and a female thread is formed on the inner peripheral surface of the peripheral wall 142, which is screwed and fixed to a male thread formed on the outer peripheral surface of the opening 121 of the outer container 12 so as to cover the inner container 11, the top surface 13, and the opening 121 of the outer container 12. The lid 14 may be a so-called snap-on type instead of a screw lid.

[0035] An annular inner cap 15 is provided on the inner peripheral surface of the lid body 14 so as to be rotatable relative to the lid body 14. The inner cap 15 is engaged with the inner peripheral surface of the lid body 14 so as to be rotatable relative to the lid body 14 by a continuous or discontinuous annular rib 143 formed on the inner peripheral surface of the lid body 14 and a continuous or discontinuous annular rib 153 formed on the outer peripheral surface of the inner cap 15, as shown in part A of FIG.

[0036] Next, the engagement relationship between the inner cap 15, the top surface 13 and the inner container 11 will be described with reference to FIG.

[0037] FIG. 3 is a perspective view of the container 100 according to the first embodiment with the lid 14 open.

[0038] The inner circumferential surface of the inner cap 15 is formed with a plurality of rectangular faces arranged in the circumferential direction. In other words, the cross-sectional shape of the inner circumferential surface of the inner cap 15 perpendicular to the Z-axis direction is a polygon. The number of corners of the polygon is not particularly limited, but is preferably 6 to 60 corners, and more preferably 9 to 36 corners. In this embodiment, the case of an 18-sided polygon will be described. The cross-sectional shapes of the outer peripheral surface 117 of the peripheral wall 112 of the inner container 11 and the outer peripheral surface of the peripheral wall 131 of the top surface 13 perpendicular to the Z-axis direction are polygonal corresponding to the inner circumferential surface of the inner cap 15. The polygonal shape formed on the inner circumferential surface of the inner cap 15 and the polygonal shape formed on the outer peripheral surface 117 of the peripheral wall 112 of the inner container 11 and the outer peripheral surface of the peripheral wall 131 of the top surface 13 position the inner cap 15, the inner container 11, and the top surface 13. Hereinafter, each polygonal shape may be referred to as a positioning shape. By placing the lid body 14 with the inner cap 15 over the inner container 11, the inner peripheral surface of the inner cap 15 is positioned and engaged with the outer peripheral surface of the peripheral wall 131 of the top surface 13 and the outer peripheral surface 117 of the inner container 11, and the inner cap 15, top surface 13 and inner container 11 are locked so as not to rotate.

[0039] The outer peripheral surface of the peripheral wall 131 of the top surface 13 has a guide 133 having a loft shape in which the cross-sectional shape perpendicular to the Z-axis direction transitions (changes) stepwise or continuously from a circle to a polygon as it moves from the upper end to the lower end. As a result, as described later, when the lid body 14 is screwed to the outer container 12, the inner peripheral surface of the inner cap 15, the peripheral wall 131 of the top surface 13, and the peripheral wall 112 of the inner container 11 can automatically rotate the inner cap 15 so that the corresponding surfaces coincide with the top surface 13, even if the polygonal positioning shape of the inner cap 15 and the polygonal positioning shapes of the outer peripheral surfaces of the top surface 13 and the inner container 11 are misaligned, so that the inner cap 15 is reliably positioned with respect to the top surface 13 and the inner container 11. In addition, when the lid body 14 is screwed onto the outer container 12, the inner surface of the inner cap 15 comes into contact with the guide 133 on the outer surface of the peripheral wall 131 of the top surface 13, so that the positioning shape of the inner cap 15 can be smoothly engaged with the positioning shape of the top surface 13.

[0040] In the example shown in this embodiment, the guide 133 is described as being included in the positioning shape of the top surface 13, but it may also be included in the positioning shape of the inner cap 15, or it may be included in both the positioning shape of the top surface 13 and the positioning shape of the inner cap 15.

[0041] Next, the engagement between the inner cap 15 and the outer container 12 will be described.

[0042] FIG. 4 is a diagram showing an engagement state between the inner cap 15 and the outer container 12 as viewed from the inner peripheral wall 121a side of the opening 121 of the outer container 12 in part A of FIG. 1. As shown in FIG. 4, a plurality of protrusions 151 protruding downward are formed at the lower end of the inner cap 15. A plurality of grooves 125 are formed at the inner peripheral wall (inner peripheral surface) 121a of the opening 121 of the outer container 12. A rib 126 is formed between the grooves 125. When the lid body 14 is screwed to the outer container 12, the protrusions 151 approach the grooves 125 of the outer container 12 (FIG. 4(a)), are inserted (FIG. 4(b)), and engage (FIG. 4(c)). With this configuration, the outer container 12 and the inner container 11 can be positioned via the inner cap 15. The lid body 14 is screwed onto the outer container 12, so that the lid body 14, the outer container 12, the inner cap 15, and the inner container 11 are integrally locked (fixed). The number of grooves 125 is preferably a multiple of the number of corners of a polygonal cross-sectional shape of the inner circumferential surface of the inner cap 15 perpendicular to the Z-axis direction.

[0043] In this embodiment, an example has been shown in which a plurality of grooves 125 are formed in the inner peripheral wall 121a of the opening 121 of the outer container 12, but they may be formed in the outer peripheral wall (outer peripheral surface) 121b of the opening 121. In this case, however, the grooves 125 need to be provided at positions that avoid the position of the male screw provided in the outer peripheral wall 121b.

[0044] As shown in Fig. 4, the projection 151 has a tip 152 that is inclined and sharp. The rib 126 also has a tip 127 that is inclined. Due to the shapes of the tip 152 of the projection 151 and the tip 127 of the rib 126, even if the position of the projection 151 is misaligned with the position of the groove 125 (Fig. 4(a)), the inner cap 15 can rotate and move, allowing the projection 151 to be smoothly inserted into the groove 125 (Fig. 4(b)). By rounding the tips of the projection 151 and the rib 126, the possibility of the tips being damaged can be reduced.

[0045] In the above configuration, when the lid body 14 is screwed to the outer container 12, as the female thread of the lid body 14 is screwed deeply into the male thread on the outer peripheral surface of the outer container 12, the packing 19 provided on the lower side (inside) of the upper surface portion 141 of the lid body 14 is gradually pressed, and the rotation of the lid body 14 is transmitted to the inner container 11 via the packing 19 and the top surface 13. However, the top surface 13 and the inner container 11 are engaged with the inner cap 15 in an unrotatable manner, and the inner cap 15 and the outer container 12 are also engaged with each other in an unrotatable manner, and the lid body 14 and the inner cap 15 are held rotatably, so that the rotation of the lid body 14 is not transmitted to the inner container 11. In other words, the inner cap 15 can rotate together with the inner container 11. Therefore, even if the lid body 14 is rotated to be screwed, the inner container 11 does not rotate, and the stage 16 does not rise and the contents do not discharge. Therefore, the contents can be prevented from being discharged when the lid body 14 is closed.

[0046] Even when the lid 14 is screwed onto the outer container 12 and then the screws are loosened to remove it from the outer container 12, the packing 19 is tightly pressed, so the rotational force of the lid 14 is transmitted to the top surface 13 and the inner container 11 via the packing 19. However, the inner cap 15, top surface 13, inner container 11, and outer container 12 other than the lid 14 are integrally engaged, and the inner cap 15 can rotate together with the inner container 11, so the inner container 11 does not rotate, and the stage 16 does not rise, causing the contents to be discharged.

[0047] 5 is a partially exploded perspective view of the container 100 according to the first embodiment. The inner container 11 and the top surface 13 are detachable from the outer container 12 and the lid 14 as a unit. The inner container 11 has a stage 16 and a spiral cylinder 17 inside. An inner cap 15 is provided on the inner circumferential surface of the lid 14. When the contents contained in the inner container 11 run out, the user can pull the used inner container 11 and the top surface 13 upward from the outer container 12, and use the container 100 by attaching new inner container 11 and top surface 13 (refill) filled with the contents. In other words, the lid 14 and the outer container 12 can be reused, thereby reducing the environmental impact.

[0048] Second Embodiment A container 200 according to a second embodiment of the present invention will be described. Fig. 6 is a cross-sectional view of the container 200 according to the second embodiment, and Fig. 7 is an enlarged view of part B in Fig. 6. Fig. 8 is a perspective view of the lid 24 of the container 200 according to the second embodiment.

[0049] 6 to 8, the container 200 according to the second embodiment differs from the container 100 according to the first embodiment in that an elastic member 20 is provided between the inner cap 25 and the lid body 24, and accordingly, the structures of the inner cap 25 and the lid body 24 are different. The other configurations are the same as those of the first embodiment. The elastic member 20 is, for example, a compression spring.

[0050] In the first embodiment, the length of the protrusion 151 provided at the lower end of the inner cap 15 is required to be close to the movement distance (stroke) when the lid body 14 is screwed into the outer container 12 (FIG. 4). If the movement distance of the lid body 14 is long, the length of the protrusion 151 also needs to be long, but if the length of the protrusion 151 is long, the protrusion 151 becomes more likely to be damaged during use. Therefore, when it becomes necessary to increase the length of the protrusion, the inner cap 25 is provided so as to be rotatable relative to the lid body 24 and movable up and down, as shown in FIG.

[0051] In this state, the inner cap 25 is constantly pressed downward by the elastic member 20, so that the annular rib 253 of the inner cap 25 and the annular rib 243 of the lid body 24 are in contact with each other. When the lid body 24 is screwed onto the outer container 12, the projection 251 of the inner cap 25 first engages with the groove 125 of the outer container 12. When the lid body 24 is screwed onto the outer container 12 in this state, the lid body 24 gradually descends relative to the outer container 12, but since the elastic member 20 is interposed between the lid body 24 and the inner cap 25, the projection 251 of the inner cap 25 remains engaged with the groove 125, and the downward movement of the lid body 24 is absorbed by the compression of the elastic member 20, as shown in FIG.

[0052] Therefore, even if the length of the protrusion 251 is short, the protrusion 251 can be reliably engaged with the groove 125. Therefore, a protrusion having a relatively short length in the Z-axis direction can be used, and the risk of the protrusion 251 breaking can be reduced. <Third embodiment>

[0053] A container 300 according to a third embodiment of the present invention will be described. Fig. 9 is a perspective view of the container 300 according to the third embodiment with the lid 34 open, Fig. 10 is an enlarged view of part D in Fig. 9, and Fig. 11 is an enlarged view of part C. Fig. 12 is a view showing an engagement state between the inner cap 35 and the top surface 33 of the container 300 according to the third embodiment.

[0054] 9, the container 300 according to the third embodiment differs from the container 100 according to the first embodiment in the shapes of the inner cap 35 and the top surface 33. The configuration other than the above is the same as that of the first embodiment.

[0055] The outer peripheral surface of the peripheral wall 331 of the top surface 33 has a guide 333 having a positioning shape and a loft shape similar to the first embodiment. In this embodiment, the guide 333 is further formed with a first protrusion 332 having a pointed shape toward the inner cap 35, and the first protrusion 332 has inclined surfaces S1, S1 as shown in Fig. 10. The inclined surfaces S1, S1 are formed so that the height (depth) of the inclined surfaces decreases toward the inner container 11 side. In other words, it has a triangular shape with an apex in the -Z axis direction.

[0056] The inner circumferential surface of the inner cap 35 is formed with a positioning shape similar to that of the first embodiment. In this embodiment, a second protrusion 352 having a pointed shape toward the top surface 33 is further formed on the end surface of the inner cap 35 facing the top surface 33, and the second protrusion 352 has inclined surfaces S2, S2 as shown in Fig. 11. The inclined surfaces S2, S2 are formed so that the height (depth) of the inclined surfaces increases toward the top surface 33 side. In other words, the inclined surfaces have a triangular shape with an apex in the +Z axis direction.

[0057] When the lid 24 is screwed onto the outer container 12, first, as shown in Fig. 12(a), the inclined surface S2 of the second convex portion 352 of the inner cap 35 comes into contact with the inclined surface S1 of the first convex portion 332 of the top surface 33. Then, as shown in Fig. 12(b), the second convex portion 352 moves along the inclined surface S1 of the first convex portion 332, so that in addition to the same effect as the guide 133 of the first embodiment, the positioning shape of the inner cap 35 and the positioning shape of the top surface 33 can be engaged more smoothly.

[0058] In this embodiment, an example has been shown in which no elastic member is provided between the lid body 34 and the inner cap 35, but an elastic member may be provided, and accordingly, the shapes of the protrusion 351 of the inner cap 35 and the groove 125 of the outer container 12 can also be appropriately changed as in the second embodiment.

[0059] As described above, the embodiment has been described, but the above embodiment is presented as an example, and the present invention is not limited to the above embodiment. The above embodiment can be implemented in various other forms, and various combinations, omissions, substitutions, modifications, etc. can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention and its equivalents described in the claims.

[0060] The refill aspect shown in FIG. 5 in the first embodiment can also be used in the second and third embodiments. [Explanation of symbols]

[0061] 11 Inner container 111, 121, 132 aperture 12 Outer container 121a Inner wall of opening 121b Outer wall of opening 125 Groove 13, 33 Top 131, 331 Peripheral wall 133, 333 Guide 14, 24, 34 Lid 15, 25, 35 Inner Cap 151, 251, 351 protrusions 16 Stages 17 Spiral tube 20 Elastic member 332 First protrusion 352 Second convex part S1, S2 slope 100, 200, 300 containers

Claims

1. an inner container capable of accommodating contents therein and having an opening at an upper portion; a stage that can move up and down together with the contents by rotating the inner container; a peripheral wall that fits into the inner container and a top surface having an opening; A lid body that covers the inner container and the top surface; an outer container having an opening and accommodating the inner container; An inner cap is provided which is rotatable relative to the lid body and rotatable together with the inner container, A cross-sectional shape of an inner circumferential surface of the inner cap perpendicular to a central axis of the inner container is polygonal, a cross-sectional shape of an outer peripheral surface of the peripheral wall of the inner container and an outer peripheral surface of the peripheral wall of the top surface, the cross-sectional shape being perpendicular to a central axis of the inner container, each of which is a polygon corresponding to an inner peripheral surface of the inner cap; A plurality of grooves are formed on the inner or outer peripheral wall of the opening of the outer container, and a plurality of protrusions are formed on the lower end of the peripheral wall of the inner cap, By placing the lid body over the inner container, the inner circumferential surface of the inner cap, the outer circumferential surface of the peripheral wall of the top surface, and the outer circumferential surface of the peripheral wall of the inner container are positioned and engaged with each other, and the inner cap, the top surface, and the inner container are non-rotatably engaged with each other, and the lid body becomes rotatable with respect to the inner cap, the top surface, and the inner container. A container, wherein the inner cap is positioned relative to the outer container by engagement between the plurality of grooves and the plurality of protrusions.

2. an inner container capable of accommodating contents therein and having an opening at an upper portion; a stage that can move up and down together with the contents by rotating the inner container; a peripheral wall that fits into the inner container and a top surface having an opening; A lid body that covers the inner container and the top surface; an outer container having an opening and accommodating the inner container; An inner cap is provided which is rotatable relative to the lid body and rotatable together with the inner container, a cross-sectional shape of an inner circumferential surface of the inner cap perpendicular to a central axis of the inner container is a polygonal positioning shape; a cross-sectional shape of an outer peripheral surface of the peripheral wall of the inner container and a cross-sectional shape of an outer peripheral surface of the peripheral wall of the top surface, the cross-sectional shape being perpendicular to a central axis of the inner container, each of which is a polygonal positioning shape corresponding to an inner peripheral surface of the inner cap; At least one of the positioning shape of the inner cap and the positioning shape of the top surface has a guide that engages with the positioning shape of the inner cap and the positioning shape of the top surface, A container in which, by placing the lid body over the inner container, the inner surface of the inner cap and the outer surface of the peripheral wall of the top surface and the outer surface of the peripheral wall of the inner container are positioned and engaged with each other, so that the inner cap, the top surface, and the inner container are non-rotatably engaged with each other, and the lid body can rotate relative to the inner cap, the top surface, and the inner container.

3. The container of claim 2 , wherein the guide is defined by a lofted shape that transitions from a circular shape to a polygonal shape.

4. the positioning shape of the inner cap and the positioning shape of the top surface each have the guide, The container of claim 3 , wherein the guide includes a protrusion having an inclined surface.

5. The container according to claim 1 , wherein an elastic member is provided between the inner cap and the lid, and the inner cap is configured to be movable up and down relative to the lid.

6. 6. The container according to claim 1, wherein the stage moves up and down a predetermined distance by rotating the inner container and the outer container relative to one another.

7. The container according to claim 1 , wherein the inner container, the top surface, and the stage are detachable as a unit from a lid body having the outer container and the inner cap.

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