JP7535296B2 - Application container - Google Patents

Description

This disclosure relates to an application container for applying liquid contents.

Various types of application containers for applying liquid contents have been known in the past. For example, Utility Model Registration No. 2568992 describes a small liquid cosmetic with a brush. This small liquid cosmetic comprises a plastic molded tube with a mouth that holds a viscous liquid cosmetic and a brush, a thin-walled pipe that supplies the viscous liquid cosmetic to the brush, and a heat-sealed part that fixes the thin-walled pipe to the inside of the plastic molded tube.

Before using the small liquid cosmetic product, a sealing cap that seals the brush is connected to the mouth of the plastic molded tube via a thin weakened portion that is recessed on the outer periphery. When using the small liquid cosmetic product, the sealing cap is detached from the mouth via the weakened portion, and the plastic molded tube is pressed with the brush exposed from the mouth, whereby the viscous liquid cosmetic product is pushed out onto the brush, making it possible to apply the viscous liquid cosmetic product from the brush.

JP 2017-87531 A describes an applicator that guides liquid to a brush via an intermediate core. The applicator includes a barrel that includes a liquid storage section that stores liquid, and a front barrel that is fitted and fixed to the tip of the barrel. Inside the barrel are the liquid storage section, an intermediate core that extends in a rod shape from the liquid storage section toward the front barrel, and a bellows-shaped collector that surrounds the intermediate core. The front barrel has an opening through which the brush protrudes.

Inside the tip barrel are a brush extending from the intermediate core and a liquid guide surrounding the brush. The tip barrel is formed with an air hole that penetrates the tip barrel in the radial direction, and the air hole is connected to the internal space of the tip barrel and the internal space of the barrel body. When liquid is applied from the brush, air is drawn into the tip barrel and barrel body from the air hole, and the liquid contained in the liquid container is supplied to the brush via the intermediate core.

Utility Model Registration No. 2568992 JP 2017-87531 A

In the small liquid cosmetic product described above, the sealing cap can be separated from the mouth of the plastic molded tube via the thin-walled weakened portion, and the weakened portion is recessed on the outer periphery. In an applicator container equipped with such a thin-walled separation portion, it is required that separation be made even easier.

In the applicator described above, air holes that allow air to pass through the inside of the tip barrel and barrel body are formed so as to penetrate the tip barrel in the radial direction. When forming air holes that penetrate in the radial direction in this way in the applicator container, a mold with a complex shape may be required when molding the applicator container from resin. Therefore, it may not be easy to mold the applicator container from resin.

The present disclosure aims to provide an application container that can be easily separated and that can be easily molded into resin.

The application container according to the present disclosure comprises an application material for applying a liquid content, a cylindrical main body having a filling section for holding the application material and filled with the liquid content to be delivered to the application material, a cylindrical cap for covering the application material, and a separation section for connecting the main body and the cap to each other and enabling the cap to be separated from the main body by being separated , wherein the inner surface of the main body has an inclined surface that forms a reduced diameter space in which the inner diameter of the main body extends while reducing at least up to the separation section, and the separation section has a groove that is recessed radially outward of the main body on the inner surface of the separation section and extends in the axial direction of the main body at the separation section.

This application container has a cylindrical main body that holds an application material for applying a liquid content, and the main body has a filling section filled with the liquid content to be delivered to the application material. Between the main body that holds the application material and has the filling section, and the cap that covers the application material, a separation section that allows the cap to be separated from the main body is formed. A groove is formed on the inner surface of the separation section, and this groove is shaped to be recessed radially outward on the inner surface of the separation section. Therefore, since the recessed groove is formed in the separation section, the separation section is made thin at the groove portion, so that the main body and the cap can be easily separated at the separation section. In addition, the groove formed in a recessed shape in the separation section extends in the axial direction of the main body. Therefore, air can pass from the separation section through the groove extending in the axial direction of the main body to the inside of the main body, so that a radially penetrating air hole is not necessary. Therefore, the mold prepared when resin molding the application container can be simplified, and resin molding can be easily performed.

One axial end of the groove may coincide with the position of the tear-off portion. In this case, one end of the groove reaches the tear-off portion, and the boundary between the presence and absence of the groove coincides with the tear-off portion. Therefore, the thickness of the tear-off portion changes at the end of the groove that coincides with the position of the tear-off portion, making it even easier to separate the cap from the main body at the tear-off portion.

The groove may extend from the cut-off portion to the filling portion. In this case, the groove from the cut-off portion reaches the filling portion where the liquid content portion is filled, so that the air flow path on the inner surface of the main body reaches the filling portion. This can further promote the delivery of the liquid content to the applicator, and enables stable delivery of the liquid content to the applicator.

A recess formed in the bottom located on the opposite side of the cut-off portion from the filling portion may serve as an air flow passage from the groove.

This disclosure allows for easy separation and resin molding.

FIG. 2 is a side view showing an application container according to the embodiment. 2 is a cross-sectional view of the application container shown in FIG. 1 along line AA. 2 is a side view of the body of the application container of FIG. 1 with the cap separated from the body, and a cross-sectional view of the cap. FIG. 4 is a side view showing a state in which the cap in FIG. 3 is attached to the main body. FIG. 5 is a vertical cross-sectional view of the application container of FIG. 4 . FIG. 4 is a cross-sectional view of the body of FIG. 3 . FIG. 7 is an enlarged cross-sectional perspective view of the cut-off portion side of the main body of FIG. 6. FIG. 8 is a front view of the detachment portion of FIG. 7 . FIG. 2 is a cross-sectional view showing the tail plug of the application container of FIG. 1 . 2 is a cross-sectional view showing a body and a cap of the application container of FIG. 1. FIG. 11 is an enlarged cross-sectional view of a separation portion located between the body and the cap of FIG. 10 . FIG. 12 is an enlarged cross-sectional view of the cut-off portion and the coating material in FIG. 11 .

Below, an embodiment of an applicator container according to the present disclosure will be described with reference to the drawings. In the description of the drawings, the same or corresponding elements are given the same reference numerals, and duplicated descriptions will be omitted as appropriate. In addition, the drawings may be partially simplified or exaggerated for ease of understanding, and the dimensions and proportions are not limited to those shown in the drawings.

Figure 1 is a side view showing an applicator container 1 according to this embodiment. Figure 2 is a cross-sectional view taken along line A-A in Figure 1. As shown in Figures 1 and 2, the applicator container 1 comprises a rod-shaped main body 2 extending along an axial direction D1, and a cap 3 that is separated from the main body 2 via a separation part 10. In this disclosure, "axis" and "axis" refer to a center line that extends along the longitudinal direction of the applicator container, and "axial direction" refers to a direction along the axial line L of the applicator container (e.g., the longitudinal direction of the applicator container 1).

The applicator container 1 is equipped with an applicator material 1A that applies the liquid contents M. In this disclosure, the term "applicator material" refers to a material that applies the liquid contents M to the application target portion, which is the application target. The "applicator material" may be, for example, a cosmetic product, a cosmetic applicator such as a puff, a sponge, a tip, an impregnated body, or a brush, or a drawing material such as a brush or stationery. The "application target portion" refers to the object to which the applicator material is applied, and examples of such objects include the skin, eyebrows, eyelashes, hair, or paper of the user of the applicator container 1.

The applicator 1A includes, for example, a brush 4 that is attached to the tip of the main body 2 and applies the liquid content M contained in the pipe material 5, and an intermediate core 6 that transfers the liquid content M from the pipe material 5 to the brush 4. This applicator container 1 is a container that contains the liquid content M and allows the user to apply the liquid content M with the brush 4.

In this embodiment, for example, the liquid content M is a liquid cosmetic such as eyeliner, lip liner, eye shadow, or skin care, and the applicator container 1 is a liquid cosmetic container. In the following, the direction in which the brush 4 protrudes from the applicator container 1 may be described as "front" and the opposite direction as "rear". However, these directions are for convenience of explanation and do not limit the position or orientation of objects. As an example, the applicator container 1 is a container for a small amount of cosmetic and is used as a tester or sample. In other words, the applicator container 1 may be used as a tester distributed at stores or as a magazine supplement.

As shown in Figs. 1 to 3, for example, the cap 3 is bent at an angle from the axial direction D1 relative to the main body 2, whereby the detachment portion 10 breaks and is separated from the main body 2. The main body 2 has, for example, a cylindrical shape with openings formed at both one end and the other end in the axial direction D1. However, the shape of the main body 2 is not limited to a cylindrical shape, and may be other shapes, such as a rectangular tube shape.

The main body 2 has an opening 2b through which the brush 4 is exposed. When the cap 3 is separated from the main body 2, the application material 1A (brush 4) held by the main body 2 is exposed along with the opening 2b, and the application container 1 is ready for use. The main body 2 has, for example, a front tube portion 2c that has the opening 2b and expands in diameter as it moves away from the opening 2b, and an expanding tube portion 2f that expands in diameter via a step portion 2d at the end of the front tube portion 2c opposite the opening 2b.

As an example, the front tube portion 2c has a first tapered surface 2g that expands in diameter from the opening 2b, a second tapered surface 2h that expands in diameter from the end (rear end) of the first tapered surface 2g opposite the opening 2b, and a third tapered surface 2j that expands in diameter from the rear end of the second tapered surface 2h. For example, the inclination angle of the second tapered surface 2h with respect to the axial direction D1 is larger than the inclination angle of the third tapered surface 2j with respect to the axial direction D1, and the inclination angle of the first tapered surface 2g with respect to the axial direction D1 is larger than the inclination angle of the second tapered surface 2h with respect to the axial direction D1.

The cap 3 has a first covering portion 3b that covers the opening 2b and the application material 1A (brush 4) before being separated from the main body 2, and a second covering portion 3c that is attached to the front tube portion 2c of the main body 2 after being separated from the main body 2. As shown in Figures 2 to 4, after the cap 3 is separated from the main body 2 via the separation portion 10, it is attached to the front tube portion 2c of the main body 2 with its orientation in the axial direction D1 reversed.

The main body 2 and cap 3 configured as described above are, for example, integrally molded. In this case, a mold is disposed on one side of the axial direction D1, and the main body 2 and cap 3 can be easily manufactured by injection molding using a pair of molds aligned along the axial direction D1. As an example, the material of the main body 2 and cap 3 is PP (polypropylene). However, the material of the main body 2 and cap 3 is not limited to PP, and may be other materials (resin materials), specifically, plant-derived resins or recycled resins that are environmentally friendly.

For example, in the cap 3, the outer diameter of the first covering portion 3b is smaller than the outer diameter of the second covering portion 3c. Between the first covering portion 3b and the second covering portion 3c, an inclined portion 3d is formed, the diameter of which gradually increases from the first covering portion 3b toward the second covering portion 3c. The first covering portion 3b and the second covering portion 3c, for example, both extend along the axial direction D1. The length of the first covering portion 3b in the axial direction D1 is, for example, shorter than the length of the second covering portion 3c in the axial direction D1.

For example, the first covering portion 3b and the inclined portion 3d cover the application material 1A (writing brush 4) before the cap 3 is separated from the main body 2. The first covering portion 3b and the inclined portion 3d have a bottomed first internal space 3g extending in the axial direction D1, and the application material 1A is in contact with or close to the inner surface 3h that defines the first internal space 3g before the cap 3 is separated from the main body 2. The bottom 3k of the first internal space 3g is formed by an inclined surface that decreases in diameter as it becomes deeper. Therefore, when molding is performed by pouring resin from the opposite side of the bottom 3k of the partition wall 3p, the inclined surface of the bottom 3k can suppress bending due to pressure during injection molding of the mold (core pin) that forms the first internal space 3g.

The second covering portion 3c is attached to the front tube portion 2c of the main body 2 while covering the coating material 1A after the cap 3 is separated from the main body 2. As shown in Figs. 4 and 5, the second covering portion 3c has a second internal space 3j extending in the axial direction D1. The bottom 3m of the second internal space 3j is, for example, a flat surface perpendicular to the axial direction D1. The first covering portion 3b and the second covering portion 3c are separated, for example, by a partition wall 3p.

An annular convex portion 3r is formed on the inner surface 3q of the second covering portion 3c that defines the second internal space 3j of the second covering portion 3c. After being separated from the main body 2, the cap 3 is attached to the front tube portion 2c of the main body 2 with the annular convex portion 3r abutting the outer peripheral surface of the front tube portion 2c of the main body 2. This causes the front tube portion 2c and the application material 1A to be sealed by the cap 3. With the cap 3 attached to the front tube portion 2c, for example, a gap S is formed between the tip 4b of the application material 1A (brush 4) and the bottom 3m of the second covering portion 3c.

The pipe material 5 is cylindrical, and for example, a padding (felt) is fitted inside the pipe material 5, and the liquid contents M is filled into the padding (felt). The pipe material 5 may be, for example, a thin-walled pipe, and may have fibers made of polyester (or polybutylene terephthalate (PBT), polyethylene terephthalate (PET)) simultaneously molded inside. A relay core 6 is inserted into the opening 2b side of the pipe material 5, and the relay core 6 delivers the liquid contents M inside the pipe material 5 to the writing brush 4.

The relay core 6 is made of, for example, PET. The relay core 6 extends in the axial direction D1 inside the pipe material 5 and inside the writing brush 4. The relay core 6 has a first insertion portion 6b that is inserted into the pipe material 5 and a second insertion portion 6c that is inserted into the writing brush 4, and for example, the outer diameter of the first insertion portion 6b is larger than the outer diameter of the second insertion portion 6c. As an example, the first insertion portion 6b is cylindrical, and the second insertion portion 6c is conical with a diameter that decreases as it moves away from the first insertion portion 6b.

As described above, the intermediate core 6 is interposed between the liquid contents M contained in the pipe material 5 and the writing brush 4, with the second insertion portion 6c located on the front side entering the writing brush 4 and the first insertion portion 6b located on the rear side entering the pipe material 5. The intermediate core 6 sucks up the liquid contents M inside the pipe material 5 by capillary action, for example, and sends it to the writing brush 4.

The rear portion of the brush 4 is disposed inside the tip tube 2c, and the brush 4 protrudes forward (towards the cap 3) from the opening 2b of the tip tube 2c. The brush 4 has multiple bristles 4d for applying the liquid contents M, and an annular brush holder 4c located at the rear end of the bristles 4d. For example, the ends of the multiple bristles 4d are fixed to the brush holder 4c.

The brush holder 4c is sandwiched in the axial direction D1 between the step 2m, which narrows toward the opening 2b inside the main body 2, and the first insertion portion 6b of the expanded intermediate core 6. This makes it impossible for the brush 4 to move in the axial direction D1. As an example, the brush 4 is made by bundling PBT (polybutylene terephthalate) fibers.

A tail plug 7 is inserted into the opening 2p on the opposite side of the opening 2b of the main body 2, and the tail plug 7 closes the opening 2p at the rear end of the application container 1. The front end of the tail plug 7 is in contact with, for example, the rear end of the pipe material 5. Next, the main body 2 will be described in more detail. Figure 6 is a vertical cross-sectional view (a cross-sectional view cut along a plane extending in the axial direction D1) showing the main body 2. Figure 7 is a cross-sectional perspective view showing an enlarged view of the opening 2b and the front tube portion 2c of the main body 2. As shown in Figures 6 and 7, inside the main body 2, a filling section 2q is formed in which the pipe material 5 filled with the liquid content M is accommodated, an internal space 2r extends from the filling section 2q toward the opening 2b, and a reduced diameter space 2s extends from the internal space 2r to the opening 2b while reducing in diameter.

The inner diameter of the filling section 2q is larger than the inner diameter of the internal space 2r, which is larger than the inner diameter of the reduced diameter space 2s. In other words, the inner diameter of the main body 2 becomes smaller from the filling section 2q toward the internal space 2r and the reduced diameter space 2s. The step section 2m described above is formed between the filling section 2q and the internal space 2r.

Figure 8 is a front view of the opening 2b of the main body 2 as seen from the front (the cap 3 side). As shown in Figures 6, 7 and 8, the main body 2 has, for example, a separation portion 10 at its front end from which the cap 3 is separated. The separation portion 10 has a groove 11 recessed on the inner surface of the separation portion 10 outward in the radial direction D2 of the main body 2. Note that the "radial direction D2" is shown as an arrow pointing in the left-right direction in Figure 8, but it is the radial direction of the main body 2 and indicates the direction from the outer periphery of the main body 2 to the center of the main body 2 and moving toward or away from it. That is, in the example of Figure 8, it indicates all directions from the center of the main body 2 toward the outer periphery of the main body 2 (including the direction extending up and down from the center of the main body 2 and the direction extending left and right from the center of the main body 2). The groove 11 is an air flow path that supplies air from the opening 2b to the liquid contents M contained in the pipe material 5.

The groove 11 extends rearward from the opening 2b of the main body 2. For example, the groove 11 extends from the opening 2b in the axial direction D1 and from the opening 2b to the filling section 2q. For example, the position of the end (rear end) of the groove 11 opposite the opening 2b is rearward of the rear end of the pipe material 5. As a result, the groove 11 extends from one end to the other end of the pipe material 5 in the axial direction D1, ensuring air circulation from the opening 2b to the rear end of the pipe material 5.

The groove 11 includes, for example, a first groove portion 11b formed in the reduced diameter space 2s, a second groove portion 11c formed in the internal space 2r, and a third groove portion 11d formed in the filling portion 2q. The first groove portion 11b, the second groove portion 11c, and the third groove portion 11d are aligned in a straight line (approximately in a straight line) along the axial direction D1, for example.

The groove 11 is recessed, for example, in a curved shape on the outside of the radial direction D2 of the main body 2. As one example, the groove 11 is recessed in an arc shape. The detachment portion 10 has, for example, multiple grooves 11, which are aligned along the circumferential direction D3 of the detachment portion 10. As one example, four grooves 11 are aligned at equal intervals along the circumferential direction D3.

As shown in Fig. 5 and Fig. 9, a tail plug 7 is attached to the opening 2p on the opposite side to the opening 2b of the main body 2 to close the opening 2p. Fig. 9 is a vertical cross-sectional view showing the tail plug 7. The tail plug 7 has a bottom 7b that faces the pipe material 5 along the axial direction D1, a cylindrical portion 7c that extends from the bottom 7b along the axial direction D1, and a flange portion 7d that closes the opening 2p at the end of the cylindrical portion 7c on the opposite side to the bottom 7b. For example, the tail plug 7 is made of PP.

The bottom 7b is located closer to the center (front) of the axial direction D1 of the main body 2 than the opening 2p located at the end of the axial direction D1 of the main body 2. In other words, the bottom 7b of the tail plug 7 is located closer to the opening 2b located at the other end of the axial direction D1 of the main body 2 than the opening 2p located at one end of the axial direction D1 of the main body 2.

By having the bottom 7b extend forward of the opening 2p, when the tail plug 7 is injection molded by placing molds on one side and the other side of the axial direction D1, the molds can be easily removed after the resin is molded. Furthermore, by having the bottom 7b of the tail plug 7 located on the front side, the volume of the arrangement space for the pipe material 5 in the filling section 2q of the main body 2 can be reduced, making it possible to suppress the evaporation of the liquid contents M.

The bottom 7b has, for example, a protrusion 7f protruding in the axial direction D1. As an example, the bottom 7b has multiple protrusions 7f, which are arranged along the circumferential direction D3. As a result, the recesses 7g formed between the multiple protrusions 7f become air flow passages from the grooves 11, allowing air to flow more effectively through the liquid contents M filled in the pipe material 5. As an example, four protrusions 7f are arranged at equal intervals along the circumferential direction D3. The tail plug 7 also has four recesses 7g arranged along the circumferential direction D3. However, the number of protrusions 7f and the number of recesses 7g do not have to be four, and may be one, two, three, or five or more, and are not particularly limited.

The cylindrical portion 7c extends rearward from the outer end of the bottom portion 7b in the radial direction D2. The outer peripheral surface 7h of the cylindrical portion 7c is formed with, for example, an inclined surface 7j that inclines so as to expand in diameter from the bottom portion 7b toward the flange portion 7d, and an annular protrusion 7k located between the inclined surface 7j and the flange portion 7d. The outer diameter of the tail plug 7 on the bottom portion 7b side of the inclined surface 7j is smaller than the outer diameter of the tail plug 7 on the flange portion 7d side of the inclined surface 7j. For example, the annular protrusion 7k protrudes in an arc shape.

The outer diameter of the tubular portion 7c of the tail plug 7 is equal to or smaller than the inner diameter of the main body 2, and the tail plug 7 is attached to the main body 2 by inserting the tubular portion 7c into the inside of the main body 2 from the opening 2p. At this time, the tubular portion 7c enters the inside of the main body 2, and the inclined surface 7j of the tail plug 7 faces the inner surface 2t of the main body 2, and the annular protrusion 7k abuts against the inner surface 2t.

The flange 7d is enlarged at the end opposite the bottom 7b in the axial direction D1 of the tail plug 7. The outer diameter of the flange 7d is larger than the inner diameter of the main body 2. Therefore, when the cylindrical portion 7c of the tail plug 7 enters the inside of the main body 2, the surface 7m of the flange 7d facing the axial direction D1 faces or comes into contact with one end 2v of the main body 2 in the axial direction D1.

Next, the main body 2, the cap 3, and the detachment portion 10 will be further described with reference to Figures 10 and 11. The detachment portion 10 enables the cap 3 to be detached from the main body 2, and connects the main body 2 and the cap 3 to each other before detachment. Specifically, before detachment, the reduced diameter portion of the front tube portion 2c of the main body 2 and the reduced diameter portion of the first covering portion 3b of the cap 3 are connected to each other via the detachment portion 10.

Before the separation portion 10 is separated, the internal space of the main body 2 and the cap 3 is divided by a partition wall 3p provided inside the cap 3. Therefore, by placing a mold on one side and the other side of the partition wall 3p in the axial direction D1 and performing injection molding, the mold can be easily removed and the main body 2 and the cap 3 can be easily molded as a single unit.

The groove 11 described above extends, for example, from the cut-off portion 10 to the opening 2p side (rear side) of the filling portion 2q of the main body 2. The groove 11 extends, for example, linearly along the axial direction D1. As shown in Figures 11 and 12, in a vertical cross section (a cross section cut along a plane extending along the axial direction D1) of the main body 2 and the cap 3, for example, the cut-off portion 10 has a trapezoidal shape.

The cut-off portion 10 includes, for example, the first tapered surface 2g inclined in the direction in which the main body 2 narrows toward the cap 3 at one end of the axial direction D1 of the main body 2, a fourth tapered surface 3s inclined in the direction in which the cap 3 narrows toward the main body 2 at one end of the axial direction D1 of the cap 3, and a bottom surface 14 located between the first tapered surface 2g and the fourth tapered surface 3s. The position of one end 11g of the groove 11 in the axial direction D1 coincides, for example, with the position of the bottom surface 14 in the axial direction D1. In this disclosure, "coincidence" is not limited to the case of strictly coinciding. "One end of the groove in the axial direction coincides with the position of the cut-off portion" also includes, for example, the case in which one end of the groove in the axial direction is slightly shifted from the position of the cut-off portion (in the case of approximately coinciding), which provides the same effect as the case of strictly coinciding. In this embodiment, the position of one end 11g of the groove 11 in the axial direction D1 is the same as the position of the bottom surface 14 in the axial direction D1.

Before the separation portion 10 is separated, a step portion 15 is formed between the inclined surface 2w that forms the reduced diameter space 2s of the main body 2 and the inner surface 3h that forms the first internal space 3g of the cap 3, protruding inward from the inclined surface 2w in the radial direction D2. Inside the main body 2, the cap 3, and the separation portion 10, the coating material 1A abuts against the step portion 15 or the inner surface 3h.

Specifically, the writing brush 4 abuts against the step 15 or the inner surface 3h, and inside the writing brush 4, a part of the intermediate core 6 extends from the main body 2 to the inside of the tear-off portion 10 and the cap 3. In this way, the applicator 1A abuts against the step 15 or the inner surface 3h, so that the air flow path of the groove 11 is blocked before the tear-off portion 10 is separated. Note that, before the tear-off portion 10 is separated, the applicator 1A does not need to abut against the step 15 or the inner surface 3h because the first covering portion 3b of the cap 3 ensures that the applicator 1A is airtight.

The tear-off portion 10 is a reduced diameter portion (thin portion, fragile portion) that has a reduced thickness within the thickness of the main body 2 and the cap 3, so that when the cap 3 is bent in the radial direction D2 relative to the main body 2, for example, the thinnest portion of the bottom surface 14 is stretched. When the cap 3 continues to be bent relative to the main body 2, the stretched portion of the bottom surface 14 breaks and the cap 3 is separated from the main body 2. At this time, the tear-off portion 10 is separated, and for example, the portion between the bottom surface 14 and the first tapered surface 2g becomes the opening 2b of the main body 2, the application material 1A (writing brush 4) protrudes, and the air flow path of the groove 11 is opened. Then, the application material 1A is ready for use.

Next, the effects obtained from the application container 1 according to this embodiment will be described. The application container 1 has a cylindrical main body 2 that holds the application material 1A that applies the liquid content M, and the main body 2 has a filling section 2q that is filled with the liquid content M to be delivered to the application material 1A. A separation section 10 that allows the cap 3 to be separated from the main body 2 is formed between the main body 2 that holds the application material 1A and has the filling section 2q, and the cap 3 that covers the application material 1A.

As shown in Figures 6 to 8, a groove 11 is formed on the inner surface of the detachment portion 10, and the groove 11 is recessed outward in the radial direction D2 on the inner surface of the detachment portion 10. Therefore, by forming the recessed groove 11 in the detachment portion 10, the detachment portion 10 is made thin at the groove 11, so that the main body 2 and the cap 3 can be easily separated at the detachment portion 10.

In addition, the groove 11 formed in a concave shape in the cut-off portion 10 extends in the axial direction D1 of the main body 2. Therefore, air can pass through the groove 11 extending from the cut-off portion 10 in the axial direction D1 of the main body 2 to the inside of the main body 2. In other words, the groove 11 that facilitates cutting in the cut-off portion 10 can be effectively used as an air flow path extending in the axial direction D1 to the inside of the main body 2. As a result, an air hole penetrating in the radial direction D2 can be eliminated. Therefore, the mold prepared for resin molding of the application container 1 can be simplified, and resin molding can be easily performed. Therefore, the manufacturing cost of the application container 1 can be reduced, making it possible to make the application container 1 suitable as a tester or sample.

As shown in Figures 10 to 12, in this embodiment, one end 11g of the groove 11 in the axial direction D1 coincides with the position of the tear-off portion 10. Therefore, one end 11g of the groove 11 reaches the tear-off portion 10, and the boundary between the presence and absence of the groove 11 coincides with the tear-off portion 10 (more specifically, the bottom surface 14). Therefore, the thickness of the tear-off portion 10 changes at one end 11g of the groove 11 that coincides with the position of the tear-off portion 10, making it even easier to separate the cap 3 from the main body 2 at the tear-off portion 10.

In this embodiment, the groove 11 extends from the cut-off portion 10 to the filling portion 2q. Therefore, the groove 11 from the cut-off portion 10 reaches the filling portion 2q filled with the liquid contents M, and the air flow path on the inner surface of the main body 2 reaches the filling portion 2q. This further promotes the delivery of the liquid contents M to the coating material 1A, enabling stable delivery of the liquid contents M to the coating material 1A.

In this embodiment, the groove 11 extends further away from the filling section 2q on the opposite side (rear side) of the cut-off section 10. Therefore, the groove 11 extending from the cut-off section 10 in the axial direction D1 extends further beyond the filling section 2q, which further promotes air circulation on the inner surface of the main body 2. This further promotes the delivery of the liquid contents M filled in the filling section 2q to the coating material 1A, and further stabilizes the delivery of the liquid contents M to the coating material 1A.

In this embodiment, an example has been described in which the writing brush 4 protrudes from the opening 2b when the cap 3 is separated from the main body 2 at the separation section 10. In this way, the writing brush 4 protrudes after cutting at the separation section 10, and the tip 4b of the writing brush 4 is positioned away from the opening 2b, so that the opening 2b does not come into contact with the part to be applied. In other words, the opening 2b formed by the separation at the separation section 10 may be formed with a rough surface when separated, but even if the opening 2b becomes rough, it is possible to prevent the opening 2b from coming into contact with the part to be applied. As a result, safety can be improved.

The above describes the embodiments of the applicator container according to the present disclosure. However, the present disclosure is not limited to the above-described embodiments, and may be modified within the scope of the gist of each claim. In other words, the shape, size, number, material, and arrangement of each part of the applicator container are not limited to the above-described embodiments, and may be modified as appropriate.

For example, in the above embodiment, an example was described in which the groove 11 extended to the rear side of the filling section 2q. However, the groove does not have to extend to the rear side of the filling section, and may extend, for example, to a midway point of the filling section. Also, a concave air flow path may be formed on the outer periphery of the coating material that is impregnated with the liquid contents M, in which case the groove can be made shorter.

In the above embodiment, the application container 1 is described that includes an application material 1A including a brush 4 and a relay core 6. However, the application material included in the application container may be something other than a brush or a relay core. For example, the application material may be a felt-like application body formed by solidifying fibers, or an application body formed by polishing fibers solidified with an adhesive. The application material may be a bundle of tapered fibers such as polyester or nylon. The application material may also be an application material that does not have a relay core and is composed only of a brush.

The application material may also include a cylindrical bellows member that surrounds the relay core 6 described above. The bellows member is, for example, a component that controls the flow of the liquid contents M, and has a groove (bellows) that contains the liquid contents M. The bellows member may also be disposed on the rear side of an application tool such as a brush 4, so that the liquid contents can be directly filled into the filling section. In this way, the configuration of the application material can be changed as appropriate.

In the above embodiment, the detachment portion 10 is described as being detached by bending the cap 3 relative to the main body 2. However, the manner of detachment at the detachment portion is not limited to bending. For example, the detachment portion may be a detachment portion that is detached by rotating the cap relative to the main body, and the manner of the detachment portion can be changed as appropriate.

In the above embodiment, an example was described in which the liquid content M was a liquid cosmetic. However, the liquid content may be something other than a liquid cosmetic, such as ink. Furthermore, the application container may be a container other than a cosmetic container, such as a writing instrument, a design pen, or stationery. In this way, the application container can be applied to various containers.

1...application container, 1A...application material, 2b...opening, 2c...front tube portion, 2d...step portion, 2f...expanded tube portion, 2g...first tapered surface, 2h...second tapered surface, 2j...third tapered surface, 2m...step portion, 2p...opening, 2q...filling portion, 2r...internal space, 2s...reduced diameter space, 2t...inner surface, 2v...one end, 2w...inclined surface, 3...cap, 3b...first covering portion, 3c...second covering portion, 3d...inclined portion, 3g...first internal space, 3h...inner surface, 3j...second internal space, 3k...bottom, 3m...bottom, 3p...partition wall, 3q...inner surface, 3r...annular convex portion, 3s ...fourth tapered surface, 4...writing brush, 4b...tip, 4c...writing brush holder, 4d...hair, 5...pipe material, 6...relay core, 6b...first insertion part, 6c...second insertion part, 7...tail plug, 7b...bottom, 7c...tubular part, 7d...flange, 7f...projection, 7g...recess, 7h...outer periphery, 7j...inclined surface, 7k...annular projection, 7m...surface, 10...separation part, 11...groove, 11b...first groove, 11c...second groove, 11d...third groove, 14...bottom, 15...step, D1...axial direction, D2...radial direction, D3...circumferential direction, L...axial line, M...liquid contents, S...gap.

Claims (4)

A coating material for coating the liquid content;
A cylindrical body that holds the coating material and has a filling section filled with the liquid content to be delivered to the coating material;
A cylindrical cap for covering the coating material;
a separation portion that connects the main body and the cap to each other and is capable of separating the cap from the main body by being separated;
Equipped with
The inner surface of the main body has an inclined surface that forms a reduced diameter space in which the inner diameter of the main body extends while reducing at least to the separation portion,
The detachment portion has an inner surface that is recessed radially outward of the body and has a groove extending in the axial direction of the body.
Coating container. One end of the groove in the axial direction coincides with the position of the cut-off portion.
The application container according to claim 1 . The groove extends from the cut-off portion to the filling portion.
The application container according to claim 1 or 2. A recess formed in a bottom portion located on the opposite side of the cut-off portion from the filling portion serves as an air flow passage from the groove .
The application container according to any one of claims 1 to 3.

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