Dispensing container and cartridge for dispensing container

The dispensing container system with a detachable cartridge mechanism addresses the issue of resource waste by allowing reuse of the base and cartridge components, enhancing environmental sustainability.

JP7792815B2Active Publication Date: 2025-12-26YOSHINO KOGYOSHO CO LTD
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Patent Information

Application Number
JP2022027265
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-02-24
Publication Date
2025-12-26
Estimated Expiration
2042-02-24

AI Technical Summary

Technical Problem

Existing dispensing containers for rod-shaped contents, such as lipstick or stick-type glue, are not designed for reuse, leading to resource waste and environmental burden as they are discarded after use.

Method used

A dispensing container system with a base and detachable cartridge, where the cartridge is held by a claw mechanism and screw mechanism, allowing easy replacement of used cartridges with new ones, and enabling the base to be reused.

Benefits of technology

The system allows for the reuse of the base and cartridge components, reducing waste and environmental impact by enabling the replacement of used cartridges, thus promoting resource conservation.

✦ Generated by Eureka AI based on patent content.

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Abstract

To propose a dispensing container with which used cartridges can be replaced with new ones, and a cartridge for dispensing containers.SOLUTION: A dispensing container 1 includes a base 2 equipped with a rotating body 5, and a cartridge 6 that is attached to the base 2 and from which rod-shaped content is dispensed by rotating the rotating body 5, the rotating body 5 has a shaft body 5e extending along the central axis O of the rotating body 5, the cartridge 6 includes an inner plate 8 for holding rod-shaped content, a cartridge body 7 that is attached to the base 2 surrounding the rod-shaped content and the inner plate 8 and has a first threaded part 7c, and a cylindrical body 9 which has a second threaded part 9a that is screwed into the first threaded part 7c, is rotatably supported by the inner plate 8, is removable from the shaft body 5e, and held in a non-rotating manner, and moves the inner plate 8 forward and backward about the cartridge body 7 when the rotating body 5 rotates.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to a dispenser capable of dispensing a rod-shaped content, and a cartridge for the dispenser. [Background technology]

[0002] A known dispensing container is a container for storing rod-shaped contents such as lipstick, lip balm, or stick-type glue, which is cylindrical overall and includes an operating part with a bottomed, tubular skirt member, a sleeve that protrudes from the operating part along the axis of the skirt member, and a holding member that holds the contents and is located inside the sleeve; when the operating part is rotated relative to the sleeve, the holding member moves forward and the contents are dispensed from the sleeve's dispensing opening (see, for example, Patent Document 1).

[0003] In recent years, large dispensing containers containing cosmetics or other stick-shaped contents have also been used (see, for example, Patent Document 2). The dispensing container of Patent Document 2 has a rotating body attached to the base (case body), and when this rotating body is rotated, the stick-shaped contents contained in the base can be dispensed from an opening in the base. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-248076 [Patent Document 2] Design Registration No. 1568492 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the dispensing container of Patent Document 2 is disposed of as is after the stored rod-shaped contents are used up. Therefore, from the viewpoint of resource conservation and reducing the burden on the environment, there is a demand for a dispensing container in which some components such as the base can be reused and in which a used cartridge containing the used rod-shaped contents can be replaced with a new cartridge.

[0006] In view of the above-mentioned problems of the prior art, an object of the present invention is to provide a dispenser that allows a used cartridge to be replaced with a new cartridge, and a cartridge for the dispenser. [Means for solving the problem]

[0007] The present invention provides a dispensing container comprising a base having a rotating body, and a cartridge that is attached to the base and dispenses a rod-shaped content when the rotating body is rotated, wherein the rotating body has a shaft extending along the central axis of the rotating body, and the cartridge comprises a center tray that holds the rod-shaped content, a cartridge body that is attached to the base and surrounds the rod-shaped content and the center tray, and has a first screw portion, and a cylindrical body that has a second screw portion that screws into the first screw portion and is rotatably supported by the center tray, is detachable from the shaft and held in a rotation-preventing manner, and moves the center tray forward and backward relative to the cartridge body when the rotating body is rotated, and the cartridge body has a cylindrical upper outer peripheral wall that houses the center tray inside, and a cylindrical upper outer peripheral wall that houses the upper outer peripheral wall. wall The dispensing container comprises a plate-like wall provided at the lower end that covers the inner tray from below, and a claw portion that engages with a hole provided in the base to hold the cartridge on the base, the first screw portion is a female screw provided in the center of the plate-like wall, the cylindrical body has the second screw portion that screws into the first screw portion and extends below the plate-like wall, and the claw portion extends downward from the plate-like wall radially outward of the cylindrical body and elastically deforms radially to engage with the hole portion.

[0008] The base, the cartridge, and the rod-shaped content have a flat shape in a plan view, before Cartridge Ji is, The aforementioned Flat shape of Long side Areas located in the direction Elastically deformable in The aforementioned The claw have It is preferable that

[0009] The base, the cartridge, and the rod-shaped content have a flat shape in a plan view, and the cartridge has The aforementioned Flat shape of Short side Areas located in the direction It is preferable that the guide wall extends longer than the cylindrical body.

[0010] The present invention also provides a cartridge for a dispensing container that is attached to a base having a rotating body and that dispenses a rod-shaped content when the rotating body is rotated, the cartridge comprising: a center tray that holds the rod-shaped content; a cartridge body that is attached to the base and surrounds the rod-shaped content and the center tray, and has a first screw portion; and a cylindrical body that has a second screw portion that screws into the first screw portion and is rotatably supported by the center tray, and is detachably and non-rotatably held by a shaft that extends along the central axis of the rotating body, and that moves the center tray forward and backward relative to the cartridge body when the rotating body is rotated. The cartridge body has a cylindrical upper outer peripheral wall that houses the center tray inside, and a cylindrical upper outer peripheral wall that houses the upper outer peripheral wall. wall A plate-like wall is provided at the lower end portion and covers the inner tray from below, and a hole is provided in the base and engages with the base. For discharge container The cartridge is also a cartridge for a dispensing container, and is provided with a claw portion for holding the cartridge, the first screw portion being a female screw provided in the center of the plate-like wall, the second screw portion of the cylindrical body threading into the first screw portion and extending below the plate-like wall, and the claw portion extending downward from the plate-like wall radially outward of the cylindrical body and elastically deforming radially to engage with the hole portion. [Effects of the Invention]

[0011] According to the dispensing container of the present invention having the above-described configuration, when the rotating body is rotated with the cartridge attached to the base, the cylindrical body rotates together with the rotating body, thereby moving the inner tray back and forth relative to the cartridge body, so that the stick-shaped contents held in the inner tray can be fed in and out of the cartridge body. Furthermore, because the cylindrical body is detachably held on the shaft of the rotating body, after the stick-shaped contents have been used up, the cartridge attached to the base can be removed by separating the cylindrical body from the shaft, and a new cartridge can be attached to the original base by following the reverse procedure. [Brief explanation of the drawings]

[0012] [Figure 1] 2] FIG. 2 is a cross-sectional side view (cross-sectional view along BB shown in FIG. 2) showing one embodiment of a dispensing container according to the present invention. [Figure 2] 2A is a cross-sectional view of the dispensing container shown in FIG. 1 as seen from the front (cross-sectional view taken along CC shown in FIG. 2), and FIG. 2B is a cross-sectional view taken along AA shown in FIG. [Figure 3] 2 is a view showing a state in which a cartridge is being removed from the base shown in FIG. 1. FIG. [Figure 4] 1A and 1B are diagrams showing an embodiment of a new cartridge, in which (a) is a cross-sectional side view and (b) is a bottom view. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, one embodiment of a dispensing container and a cartridge for a dispensing container (sometimes simply referred to as a cartridge in this specification) according to the present invention will be described with reference to the drawings. In the following description, the up-down direction refers to the direction along the central axis O shown in the drawings (the central axis of the rotor 5 described below). The radial direction refers to the direction perpendicular to the central axis O in a plane perpendicular to the central axis O, and the circumferential direction refers to the direction revolving around the central axis O in this plane.

[0014] 1 and 2 show one embodiment of a dispensing container according to the present invention. The dispensing container 1 of this embodiment is composed of a base 2, a cartridge 6, and a cap 10. The base 2 is composed of a base body 3, a bottom cover 4, and a rotating body 5, and the cartridge 6 is composed of a cartridge body 7, an inner tray 8, and a cylindrical body 9. All of these components are shaped around a central axis O.

[0015] As shown in the drawings, the base body 3 has a cylindrical lower outer peripheral wall 3a that has a flat shape (a track shape in this embodiment) in a plan view. A fitting wall 3b that is thinner than the lower outer peripheral wall 3a is provided at the lower end of the lower outer peripheral wall 3a. A pair of openings 3c that penetrate the lower outer peripheral wall 3a is provided at a portion of the vertical middle portion of the lower outer peripheral wall 3a that is located in the short direction in a plan view, as shown in Fig. 2. Furthermore, a pair of holes 3d that penetrate the lower outer peripheral wall 3a is provided at a portion of the upper portion of the lower outer peripheral wall 3a that is located in the long direction in a plan view, as shown in Fig. 1.

[0016] The bottom cover 4 is shaped like a track in plan view, similar to the lower outer peripheral wall 3a. A fitting recess 4a that fits into the fitting wall 3b is provided on the outer edge of the bottom cover 4. A support wall 4b is provided in the center of the bottom cover 4, and is shaped like an annular ring with an upper end that bulges outward in the radial direction. A protrusion 4c that protrudes upward is provided on the upper surface of the support wall 4b. The protrusion 4c may be provided in an annular shape centered on the central axis O, or may be provided intermittently.

[0017] The rotating body 5 has a cylindrical operation wall 5a. As shown in FIG. 2(b), the outer diameter of the operation wall 5a is slightly larger than the length of the lower outer peripheral wall 3a in the short direction, and the operation wall 5a is exposed through the opening 3c. A lower wall 5b is provided below the operation wall 5a and comes into contact with the protrusion 4c when the rotating body 5 is assembled into the base 2. The lower surface of the lower wall 5b is provided with an annular engagement wall 5c whose inner peripheral surface protrudes radially inward and has a claw-like cross section. The engagement wall 5c engages with the support wall 4b and is rotatable relative to the support wall 4b and is prevented from slipping out. A lower annular wall 5d protruding downward from the lower wall 5b is provided radially outward from the engagement wall 5c.

[0018] A shaft 5e is provided on the upper surface of the lower wall 5b. The shaft 5e is integrally connected to the lower wall 5b and extends upward along the central axis O. The shaft 5e in this embodiment has a cross shape in a plan view, as shown in FIG. 2(b).

[0019] The cartridge body 7 includes a cylindrical upper outer peripheral wall 7a that is track-shaped like the lower outer peripheral wall 3a. A horizontally extending plate-like wall 7b is provided at the lower end of the upper outer peripheral wall 7a. The plate-like wall 7b has an open center, and its inner peripheral surface is provided with a first threaded portion 7c that is female-threaded. A pair of guide walls 7d are provided on the lower surface of the plate-like wall 7b in the transverse direction, extending along the inner peripheral surface of the lower outer peripheral wall 3a in the transverse direction, as shown in FIG. 2(a). The guide walls 7d extend downward, and as shown in FIG. 4, their central portions are notched upward. These notches are provided to avoid interference with the rotor 5.

[0020] As shown in FIG. 1, the lower longitudinal surface of the plate-shaped wall 7b is provided with a claw portion 7e that extends downward and bulges radially outward. The claw portion 7e is elastically deformable radially inward from the portion where it connects to the plate-shaped wall 7b. As shown in the figure, the portion of the claw portion 7e that bulges radially outward is inserted into the hole 3d from the radially inner side. The upper surface of this bulging portion extends horizontally and engages with the upper surface of the hole 3d. The lower surface of this bulging portion is provided with an inclined surface 7f that slants radially inward as it extends downward.

[0021] The inner tray 8 is located radially inward of the upper outer peripheral wall 7a and includes a plate-shaped inner tray lower wall 8a that is slightly smaller than the upper outer peripheral wall 7a in plan view and has a track-like shape. The outer edge of the inner tray lower wall 8a is provided with an inner tray outer peripheral wall 8b that extends upward along the inner peripheral surface of the upper outer peripheral wall 7a. The inner tray inner peripheral wall 8c that extends upward is provided radially inward of the inner tray outer peripheral wall 8b. Although not shown, the inner tray 8 holds a stick-shaped content. In this embodiment, when the inner tray lower wall 8a is located near the plate-shaped wall 7b (when the inner tray 8 is moved downward) as shown in FIG. 1, the shape of the stick-shaped content before use is approximately the same as or lower than the upper end of the upper outer peripheral wall 7a, and the shape in plan view is a track-like shape approximately the same as the inner tray lower wall 8a.

[0022] A stepped cylindrical support shaft 8d is provided on the underside of the inner tray lower wall 8a, extending downward along the central axis O and having a lower end with a larger diameter than the upper end.

[0023] The cylindrical body 9 extends along the central axis O and has an overall cylindrical shape. In the cylindrical body 9 of this embodiment, the outer peripheral surface is circular and the inner peripheral surface is cross-shaped in a plan view, and the shaft body 5e can be inserted inside the cylindrical body 9. In other words, the cylindrical body 9 is detachable from the shaft body 5e and is held in an anti-rotation state. The outer peripheral surface of the cylindrical body 9 is provided with a second threaded portion 9a having a male thread shape. The second threaded portion 9a is threadedly engaged with the first threaded portion 7c.

[0024] A circular shaft hole 9b is provided at the upper end of the cylindrical body 9. The inner diameter of the shaft hole 9b is slightly larger than the outer diameter of the upper end of the support shaft 8d and smaller than the outer diameter of the lower end of the support shaft 8d, allowing the cylindrical body 9 to rotate relative to the support shaft 8d and preventing it from slipping out. The cylindrical body 9 may be provided with a slit extending in the vertical direction so that the cylindrical body 9 can elastically deform when the support shaft 8d is inserted into the shaft hole 9b. Note that, when the cylindrical body 9 is held on the support shaft 8d as shown in FIG. 2(a), the above-mentioned guide wall 7d extends downward further than the cylindrical body 9. The lower end of the cylindrical body 9 is provided with a retaining portion 9c whose diameter is larger than that of the middle portion of the cylindrical body.

[0025] The cap 10 has a plate-shaped top wall 10a located above the cartridge body 7, and a cap outer peripheral wall 10b extending downward from the outer edge of the top wall 10a and surrounding the upper outer peripheral wall 7a, the lower outer peripheral wall 3a, the claws 7e, etc. The cap outer peripheral wall 10b is configured to be detachably fitted to the lower outer peripheral wall 3a, and the cap 10 is held by the base body 3.

[0026] To use the dispensing container 1 constructed as described above, remove the cap 10 from the base body 3 and rotate the rotor 5 so that the second threaded portion 9a rises relative to the first threaded portion 7c. As shown in FIG. 1, the lower wall 5b of the rotor 5 contacts the protrusion 4c. That is, the rotor 5 is supported by the bottom cover 4 via the protrusion 4c with a small contact area, allowing the rotor 5 to rotate smoothly. The inner tray 8 rises relative to the cartridge body 7 along with the cylindrical body 9 in response to the amount of rotation of the rotor 5, dispensing the stick-shaped content (not shown) held on the inner tray 8 from the cartridge body 7. The rod-shaped content can then be dispensed onto the application target while holding the base body 3 with the fingers. The lower end of the cylindrical body 9 is provided with a retaining portion 9c, preventing the raised cylindrical body 9 from slipping out of the cartridge body 7 even if the rotor 5 is rotated excessively. After application is completed, the rotating body 5 is rotated in the reverse direction to advance the cylindrical body 9 and the inner plate 8 into the cartridge body 7, so that the rod-shaped contents can be accommodated inside the cartridge body 7.

[0027] When replacing the used cartridge 6 with a new cartridge 6 (see FIG. 4) after using up the stick-shaped contents, the claws 7e of the used cartridge 6 attached to the base 2 are pressed radially inward as shown in FIG. 3. This causes the claws 7e to bend radially inward, disengaging the claws 7e from the holes 3d. The cylindrical body 9 can be removed vertically from the shaft 5e. Therefore, the used cartridge 6 can be removed from the base 2 by lifting it up relative to the base 2.

[0028] The claws 7e of this embodiment are provided in the longitudinal direction of the plate-like wall 7b, and sufficient space is secured radially inward of the claws 7e. In other words, if there is not enough space radially inward of the claws 7e, for example, the claws 7e must be made small, which reduces the strength of the claws 7e and makes it difficult to stably hold the cartridge 6 on the base 2. However, by providing the claws 7e in the longitudinal direction of the plate-like wall 7b as in this embodiment, such a problem does not occur.

[0029] The new cartridge 6 shown in FIG. 4 has a sheet material 7g attached to the upper end of the upper outer wall 7a to keep the rod-shaped contents sealed. The sheet material 7g may be, for example, an aluminum sheet or a synthetic resin sheet. The new cartridge 6 is inserted into the original base body 3 with the sheet material 7g still attached (or it may be removed first). The guide wall 7d of the cartridge body 7 extends downward beyond the cylindrical body 9. As shown in FIG. 2(a), the guide wall 7d is shaped to fit along the inner circumferential surface of the lower outer wall 3a in the short direction. In other words, when attaching the cartridge 6 to the base body 3, the guide wall 7d can guide the cartridge 6 to a predetermined position, so there is no need to pay special attention to aligning the cylindrical body 9 with the shaft 5e. This allows the cartridge 6 to be easily attached to the base body 3. Furthermore, the guide wall 7d extends further downward than the cylindrical body 9 and is provided on both sides of the cylindrical body 9, so it also has the effect of protecting the cylindrical body 9 before it is attached to the base main body 3.

[0030] As described above, the lower surfaces of the claws 7e are provided with inclined surfaces 7f that slope downward and radially inward. That is, when the cartridge 6 is inserted into the base body 3, the inclined surfaces 7f come into contact with the upper end surface of the lower outer peripheral wall 3a, causing the claws 7e to bend radially inward, allowing the cartridge 6 to be attached to the base body 3 without pressing the claws 7e with fingers.

[0031] Thereafter, by peeling off the attached sheet material 7g, the container can be used as the dispensing container 1. As described above, according to the dispensing container 1 of this embodiment, the base 2 and cap 10 can be reused after the rod-shaped contents have been used, and therefore, compared to conventional dispensing containers such as those in Patent Document 2, the container is superior in terms of resource conservation and reduced environmental impact.

[0032] Although one embodiment of the present invention has been described above, the present invention is not limited to the specific embodiment, and unless otherwise limited in the above description, various modifications and changes are possible within the scope of the spirit of the present invention as set forth in the claims. Furthermore, the effects of the above embodiment are merely examples of the effects that can be obtained from the present invention, and do not mean that the effects of the present invention are limited to the above effects.

[0033] For example, in the above-described embodiment, the cartridge body 7 is provided with the claw portion 7e and the base body 3 is provided with the hole portion 3d, but it is also possible to provide the hole portion in the cartridge body 7 and the claw portion in the base body 3. Furthermore, the components constituting the base 2 and the cartridge 6 are not limited to those in the above-described embodiment, and they may be integrated as appropriate to reduce the number of components, or the number of parts may be increased in consideration of ease of manufacturing. [Explanation of symbols]

[0034] 1: Discharge container 2: Bass 3: Base body 3a: Lower outer peripheral wall 3b: Mating wall 3c: opening 3d: Hole 4:Bottom lid body 4a: Fitting recess 4b: Support wall 4c: Convex part 5: Rotating body 5a: Operation wall 5b: Lower wall 5c: Engagement wall 5d: Lower annular wall 5e:Axial body 6: Cartridge 7: Cartridge body 7a: Upper outer peripheral wall 7b: Plate wall 7c: First screw part 7d: Guide wall 7e: Claw part 7f: Slope 7g: Sheet material 8: Medium plate 8a: Lower wall of the middle plate 8b: Middle plate outer peripheral wall 8c: Inner plate inner wall 8d: Support shaft 9: Cylindrical body 9a: Second screw part 9b: Shaft hole 9c: Retaining part 10: Cap 10a:Top wall 10b: Cap outer wall O: Central axis

Claims

1. A dispensing container comprising a base having a rotating body and a cartridge attached to the base from which a rod-shaped content is dispensed when the rotating body is rotated, the rotating body has a shaft extending along a central axis of the rotating body, The cartridge comprises: An inner tray for holding the rod-shaped contents; a cartridge body that is attached to the base and surrounds the rod-shaped content and the inner tray, and has a first screw portion; a cylindrical body having a second screw portion that screws into the first screw portion, rotatably supported by the inner plate, detachable from the shaft body and held in an anti-rotation state, and which moves the inner plate back and forth relative to the cartridge body when the rotating body is rotated; the cartridge body includes a cylindrical upper outer peripheral wall that houses the inner tray therein, a plate-like wall that is provided at a lower end of the upper outer peripheral wall and covers the inner tray from below, and a claw portion that engages with a hole provided in the base to hold the cartridge on the base, The first screw portion is a female screw provided in a central portion of the plate-like wall, the cylindrical body extends below the plate-like wall with the second threaded portion threadedly engaged with the first threaded portion, The claw portion extends downward from the plate-like wall radially outward of the cylindrical body, and elastically deforms radially to engage with the hole portion.

2. The base, the cartridge, and the rod-shaped content have a flat shape in a plan view, The dispensing container according to claim 1 , wherein the cartridge has the claw portion that is elastically deformable at a portion located in a long side direction of the flat shape.

3. The base, the cartridge, and the rod-shaped content have a flat shape in a plan view, The dispensing container according to claim 1 or 2, wherein the cartridge has a guide wall extending longer than the cylindrical body at a portion located in a short side direction of the flat shape.

4. A cartridge for a dispensing container that is attached to a base having a rotating body, and that dispenses a rod-shaped content when the rotating body is rotated, An inner tray for holding the rod-shaped contents; a cartridge body that is attached to the base and surrounds the rod-shaped content and the inner tray, and has a first screw portion; a cylindrical body having a second screw portion that screws into the first screw portion, rotatably supported by the inner plate, detachably held by a shaft that extends along the central axis of the rotating body and prevents rotation, and which moves the inner plate back and forth relative to the cartridge body when the rotating body is rotated; the cartridge body includes a cylindrical upper outer peripheral wall that houses the inner tray therein, a plate-like wall that is provided at a lower end of the upper outer peripheral wall and covers the inner tray from below, and a claw portion that engages with a hole provided in the base to hold the dispensing container cartridge on the base, The first screw portion is a female screw provided in a central portion of the plate-like wall, the cylindrical body extends below the plate-like wall with the second threaded portion threadedly engaged with the first threaded portion, The claw portion extends downward from the plate-like wall radially outward of the cylindrical body and elastically deforms radially to engage with the hole portion.

Citation Information

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