Coating container

Abstract

To propose a coating container which is prevented from being opened unintendedly, in which an operation when opening is easy, and which does not generate trash.SOLUTION: A coating container 10 includes: a container body 1 for storing a content fluid inside a mouth part 1d; an inside plug 2 mounted on the container body 1; a cap 5 having a second screw part 5d screwed to a first screw part 2e provided at the container body 1 or the inside plug 2; and a rod body 3 in which the inside of the mouth part 1d is extended and which has an applicator 4 at a tip. The inside plug 2 includes: a base part 2a held at the mouth part 1d; a connection part 2f which is positioned inside the base part 2a, and which connects the cap 5 and the rod body 3; and a weakened part 2q which connects the base part 2a and the connection part 2f, and which breaks when the cap 5 is rotated in the direction in which the second screw part 5d is loosened with respect to the first screw part 2e.SELECTED DRAWING: Figure 2A

Description

[Technical field]

[0001] The present invention relates to an application container equipped with an applicator for applying a liquid contained therein. [Background technology]

[0002] Conventionally, as a container for storing liquid contents such as manicure, pedicure, liquid lip balm, mascara, etc., there are known application containers equipped with a brush-like or writing-brush-like applicator as shown in, for example, Patent Documents 1 and 2. Such application containers are equipped with a container body that stores the liquid contents inside a mouth portion that is open at the top, a shaft body having an applicator at its tip, and a cap that holds the shaft body, and are configured so that the cap is attached to the container body by inserting the shaft body into the mouth portion. In addition, when the cap is removed from the container body, the liquid contents are attached to the applicator that was located inside the container body, so that the liquid contents can be immediately applied to the application destination. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-30822 A [Patent Document 2] JP 2003-175961 A [Patent Document 3] JP 2003-267410 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, there are known containers for containing liquid contents that are provided with a mechanism (virgin mechanism) for preventing the container from being opened inadvertently. For example, Patent Document 3 shows a mechanism in which a strip for opening is provided in a breakable manner on the side wall of the cap. In other words, by using such a strip for opening, the application container can also be provided with a function for preventing the container from being opened inadvertently.

[0005] On the other hand, when the above-mentioned opening strip is used, the strip must be removed before use, and the removed strip must be disposed of as waste.

[0006] In view of the above, an object of the present invention is to provide an application container which can be prevented from being opened inadvertently, and which is easy to open without generating any waste. [Means for solving the problem]

[0007] The present invention relates to a container body that contains a liquid content inside a mouth portion that is open upward; An inner plug attached to the container body; a cap having a second threaded portion that screws into a first threaded portion provided on the container body or the inside plug; a rod body extending inside the mouth portion and having an applicator at its tip, The inside plug is A base portion held by the mouth portion; a connecting portion located inside the base portion and connecting the cap and the rod body; The applicator container has a weakened portion that connects the base and the connection portion, and that breaks when the cap is rotated in a direction that loosens the second threaded portion relative to the first threaded portion.

[0008] It is preferable that the weakened portion connects the base portion and the connection portion around the entire periphery.

[0009] The weakened portion is formed with a cross-sectional shape that slopes upward and then downward as it moves inward from the base, and it is preferable that the thickness of the inner end where the weakened portion is connected to the connection portion is thinner than the thickness of the outer end where the weakened portion is connected to the base.

[0010] The inside plug preferably has an inclined piece that inclines inwardly as it extends downward when attached to the container body. Effect of the Invention

[0011] The plug of the present invention comprises a base portion that is held in the mouth portion and a connecting portion that connects the cap and the rod body, and the base and the connecting portion are connected by a weakened portion that breaks when the cap is rotated in a direction that loosens the second threaded portion relative to the first threaded portion. In other words, according to the present invention, the weakened portion will not break unless the cap is intentionally rotated, so it is possible to prevent the cap from being opened accidentally. In addition, when opening the cap, it is not necessary to remove the strip-shaped portion as in the conventional method, and it is only necessary to rotate the cap, so the operation is simple and no waste is generated. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a cross-sectional view illustrating an embodiment of an application container according to the present invention in a state before being opened. [Figure 2A] FIG. 2 is a partially enlarged view showing the periphery of an inner plug in the application container of FIG. 1. [Figure 2B] FIG. 2B is a partial enlarged view of part A shown in FIG. 2A. [Figure 2C] FIG. 2B is a partially enlarged view of part B shown in FIG. 2A. [Diagram 3] FIG. 2B is a cross-sectional view showing the inside plug shown in FIG. 2A in a state before being attached to the container body. [Figure 4] 13 is a cross-sectional view showing the state in which the cap is rotated relative to the container body to break the weakened portion, and then the cap is pulled up. [Figure 5A] 5 is a cross-sectional view showing a state in which a cap is attached to a container body after the state shown in FIG. 4. [Figure 5B] FIG. 5B is a partial enlarged view of part C shown in FIG. 5A. [Figure 6] FIG. 2B is a diagram showing a modified example of the application container shown in FIG. 2A. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment of the coating container according to the present invention (coating container 10) will be described with reference to the drawings. In this specification and the like, the up-down direction is the direction along the illustrated axis O (the central axis of the rod body 3 described later), and when the coating container 10 is in an upright position as shown in FIG. 1, the side where the container body 1 is located is the "lower" side, and the side where the cap 5 is located is the "upper" side. The radial direction is the direction perpendicular to the axis O in a plane perpendicular to the axis O, and the circumferential direction is the direction rotating around the axis O in this plane. In addition, although there are parts where the respective members overlap in the attached drawings, in reality, the respective members are elastically deformed so as to eliminate the overlap, and the members are in contact with each other in the overlapping parts.

[0014] The application container 10 of this embodiment includes a container body 1, an inner plug 2, a rod body 3, an application tool 4, and a cap 5. Each of the above-mentioned members in this embodiment is basically formed into a shape centered on an axis O.

[0015] The container body 1 is formed to have a bottomed tubular shape, and includes a disk-shaped bottom 1a, a cylindrical body 1b rising upward from the edge of the bottom 1a, a shoulder 1c extending radially inward from the upper end of the body 1b, and a cylindrical mouth 1d extending upward from the shoulder 1c and opening at the top. The outer circumferential surface of the mouth 1d is provided with a claw-shaped container side engagement portion 1e formed to protrude radially outward. As shown in FIG. 2A, the inner circumferential surface of the mouth 1d is provided with an inclined portion 1f that inclines inward as it goes downward. Inside the mouth 1d, a storage space S is defined in which the content liquid, such as nail polish, is stored.

[0016] The inside plug 2 has a base 2a that is held in the mouth 1d. In this embodiment, the base 2a has a cylindrical lower outer cylinder wall 2b that is located inside the mouth 1d and extends along the axis O, and a cylindrical upper outer cylinder wall 2c that has a smaller diameter than the lower outer cylinder wall 2b and extends upward from an upper end of the lower outer cylinder wall 2b.

[0017] The outer peripheral surface of the lower outer cylinder wall 2b is provided with a base engaging portion 2d that extends radially outward and then downward, with the lower end protruding radially inward to form a claw shape. As shown in the figure, the base engaging portion 2d is shaped to engage with the container side engaging portion 1e, and the base 2a is held in the mouth portion 1d without slipping out. An anti-rotation mechanism (not shown) is provided between the mouth portion 1d and the base 2a (for example, one of a protrusion provided at intervals in the circumferential direction and a groove portion that engages with the protrusion is provided on the outer peripheral surface of the container side engaging portion 1e, and the other is provided on the inner peripheral surface of the base engaging portion 2d), and the base 2a is held in the mouth portion 1d without rotation. In addition, a first threaded portion 2e that is male-threaded is provided above the base engaging portion 2d on the outer peripheral surface of the lower outer cylinder wall 2b.

[0018] The plug 2 also has a connecting portion 2f located radially inside the base portion 2a. The connecting portion 2f connects the rod body 3 and the cap 5 as shown in the figure. The connecting portion 2f of this embodiment has a lower inner cylinder wall 2g located radially inside the lower outer cylinder wall 2b, a cylindrical upper inner cylinder wall 2h that is smaller in diameter than the lower inner cylinder wall 2g and extends upward from the upper end of the lower inner cylinder wall 2g, and a disk-shaped top wall 2j that is connected to the upper end of the upper inner cylinder wall 2h. The outer peripheral surface of the upper inner cylinder wall 2h is provided with plug-side ribs 2k that are spaced apart in the circumferential direction. The outer peripheral surface of the lower inner cylinder wall 2g is provided with a connecting portion engaging portion 2m that is concave as shown in FIG. 2C, and a protruding portion 2n that is located below the connecting portion engaging portion 2m and protrudes radially outward and has a rectangular cross-sectional shape. As shown in FIG. 2B, an inward engagement projection 2p that projects radially inward is provided on the inner circumferential surface of the lower inner cylinder wall 2g.

[0019] Furthermore, the inside plug 2 has a weakened portion 2q that integrally connects the base portion 2a and the connecting portion 2f as shown in FIG. 2C. The weakened portion 2q in this embodiment is connected at the portion where the lower outer tube wall 2b and the upper outer tube wall 2c are connected on the base portion 2a side, and is connected by a protrusion 2n on the connecting portion 2f side. The weakened portion 2q may connect the base portion 2a and the connecting portion 2f intermittently in the circumferential direction, but in this embodiment, the base portion 2a and the connecting portion 2f are integrally connected over the entire circumference. In addition, the weakened portion 2q in this embodiment is formed in a cross-sectional shape that inclines upward and then downward as it moves radially inward from the base portion 2a as shown in the figure. Note that the thickness of the inner end where the weakened portion 2q connects to the connecting portion 2f is thinner than the thickness of the outer end where the weakened portion 2q connects to the base 2a, as shown in the figure. In other words, the strength of the weakened portion 2q is lower at the inner end than at the outer end.

[0020] The inside plug 2 also has a lower piece 2r connected to the lower end of the base 2a. As shown in Fig. 3, a plurality of lower pieces 2r are provided at intervals in the circumferential direction. As shown in Fig. 3, the lower piece 2r extends downward before being assembled into the application container 10, whereas, when the base 2a is held by the mouth 1d, the lower piece 2r comes into contact with the inclined portion 1f as shown in Fig. 2A, and is therefore inclined inward as it extends downward. The lower piece 2r corresponds to the "inclined piece" in this specification and the like.

[0021] As shown in FIG. 1, the rod body 3 has a cylindrical retaining wall 3a at its upper part. The lower end of the retaining wall 3a is provided with an intermediate wall 3b that is circular in plan view and has a diameter that decreases downward at the lower part. The intermediate wall 3b is provided with a cylindrical rod-shaped portion 3c extending along the axis O. The lower end of the rod-shaped portion 3c is provided with a retaining recess 3d that is recessed from the bottom to the top. As shown in FIG. 2B, the outer peripheral surface of the retaining wall 3a is provided with an outward engagement protrusion 3e that protrudes radially outward. The outward engagement protrusion 3e engages with the above-mentioned inward engagement protrusion 2p, thereby preventing the rod body 3 from coming off and being held by the connecting portion 2f. A rotation prevention mechanism (not shown) is provided between the rod body 3 and the connecting portion 2f, and the rod body 3 is held by the connecting portion 2f without rotation.

[0022] The applicator 4 includes an applicator part 4a for applying the liquid content, and a holding protrusion 4b provided on the upper part of the applicator part 4a. The applicator part 4a is, for example, brush-shaped, sponge-shaped, or pen-shaped, and the most suitable one is appropriately selected depending on the type of liquid content and the part to which the liquid content is to be applied. The holding protrusion 4b is formed in a shape that is fitted and held in the holding recess 3d, and the applicator 4 is held by the rod body 3 by inserting the holding protrusion 4b into the holding recess 3d.

[0023] The cap 5 has a disk-shaped top wall 5a and a cylindrical outer peripheral wall 5b extending downward from the outer edge of the top wall 5a. An outer cylindrical wall 5c is provided on the lower surface of the top wall 5a and located radially outside the upper outer cylinder wall 2c and the lower outer cylinder wall 2b. A second threaded portion 5d having a female thread shape is provided on the inner peripheral surface of the outer cylindrical wall 5c.

[0024] Furthermore, on the lower surface of the top wall 5a, an inner cylindrical wall 5e is provided, which is located radially outside the upper inner cylinder wall 2h and the lower inner cylinder wall 2g and radially inside the upper outer cylinder wall 2c. At the lower end of the inner cylindrical wall 5e, a cap engagement portion 5f is provided which protrudes radially inward and engages with the connection portion engagement portion 2m as shown in FIG. 2C. This prevents the cap 5 from slipping out of the connection portion 2f. The inner peripheral surface of the inner cylindrical wall 5e is provided with cap side ribs 5g which are provided at intervals in the circumferential direction. The cap side ribs 5g engage with the above-mentioned center plug side ribs 2k in the circumferential direction, thereby preventing the cap 5 from rotating and being held by the connection portion 2f.

[0025] Next, a procedure for assembling such components will be described. Note that the following procedure is only an example, and the order of assembly can be changed as appropriate as long as assembly is possible.

[0026] First, to assemble the rod body 3 and the applicator 4, the holding protrusion 4b is inserted into the inside of the holding recess 3d. This holds the applicator 4 on the rod body 3. Then, the holding wall 3a of the rod body 3 is inserted into the lower inner cylinder wall 2g of the connection part 2f of the inside plug 2. As a result, as shown in FIG. 2B, the outward engaging protrusion 3e on the holding wall 3a engages with the inward engaging protrusion 2p on the lower inner cylinder wall 2g, and the rod body 3 is held in the connection part 2f without coming off. As described above, a rotation prevention mechanism (not shown) is provided between the rod body 3 and the connection part 2f, so that the rod body 3 is held in the connection part 2f without rotation.

[0027] Next, the inside plug 2 is pressed against the cap 5 so as to insert the upper inner cylindrical wall 2h into the inner cylindrical wall 5e. As a result, the cap engagement portion 5f engages with the connection portion engagement portion 2m as shown in FIG. 2C, so that the cap 5 is held against removal at the connection portion 2f. At this time, the cap side rib 5g and the inside plug side rib 2k shown in FIG. 2A engage in the circumferential direction, so that the cap 5 is held against rotation at the connection portion 2f. When the inside plug 2 is pressed against the cap 5, the second threaded portion 5d of the cap 5 climbs over the first threaded portion 2e of the inside plug 2 and screws into the first threaded portion 2e.

[0028] Furthermore, the inside plug 2 assembled as described above is pressed against the container body 1 so that the lower piece 2r is inserted into the mouth 1d. As a result, the base engaging portion 2d engages with the container side engaging portion 1e, so that the base 2a of the inside plug 2 is held in the mouth 1d and prevented from coming off. As described above, a rotation prevention mechanism (not shown) is provided between the mouth 1d and the base 2a, so that the base 2a is held in the mouth 1d and prevented from rotating. At this time, the lower piece 2r comes into contact with the inclined portion 1f, so that it is displaced to a state in which it is inclined inward as it moves downward, as shown in FIG. 2A, and the tip of the lower piece 2r comes into contact with the outer circumferential surface of the rod-shaped portion 3c.

[0029] In the application container 10 assembled in this manner, the base 2a and the connection portion 2f are integrally connected by the weakened portion 2q. That is, according to the application container 10 of this embodiment, the weakened portion 2q will not break unless the cap 5 is intentionally rotated, so that it is possible to prevent the container from being opened inadvertently. In particular, since the weakened portion 2q of this embodiment integrally connects the base 2a and the connection portion 2f over the entire circumference, the storage space S is in a sealed state by the weakened portion 2q. That is, it is possible to prevent the content liquid stored in the storage space S from coming into contact with the outside air, so that the quality of the content liquid can be more reliably maintained.

[0030] When using the application container 10, the cap 5 is rotated in a direction in which the second screw portion 5d loosens relative to the first screw portion 2e. This applies force to the weakened portion 2q, causing the weakened portion 2q to break. In this embodiment, the weakened portion 2q is broken at the inner end portion connected to the connection portion 2f, which has a lower strength, because the inner end portion connected to the connection portion 2f is thinner than the outer end portion connected to the base portion 2a, as shown in FIG. 2C. When the cap 5 is pulled up as shown in FIG. 4, the cap 5 and the rod body 3 are connected by the connection portion 2f, so that the rod body 3 is also pulled up together with the cap 5. Note that the base portion 2a is not pulled up together with the cap 5, because it is held by the mouth portion 1d so as not to come off. The liquid content contained in the storage space S is attached to the outer circumferential surface of the rod portion 3c, but since the tip of the lower piece 2r is in contact with the outer circumferential surface of the rod portion 3c, when the rod body 3 is pulled up, the liquid content attached to the outer circumferential surface of the rod portion 3c can be scraped off by the tip of the lower piece 2r.

[0031] When the cap 5 is further raised from the state shown in Fig. 4 and the applicator 4 is pulled out from the base 2a, the content liquid contained in the storage space S adheres to the applicator 4, so that the content liquid can be applied to the application destination as is. For example, if there is too much content liquid adhering to the applicator 4 and it is desired to scrape it off, the applicator 4 can be rubbed against the lower piece 2r. The lower piece 2r is supported only at the portion in contact with the inclined portion 1f and is elastically deformable in the vertical direction, so that the excess content liquid adhering to the applicator 4 can be scraped off while bending the lower piece 2r.

[0032] After the application of the content liquid to the application destination is completed, the cap 5 is moved downward while inserting the applicator 4 inside the upper inner cylinder wall 2h, and the cap 5 is rotated in a direction in which the second screw portion 5d is tightened relative to the first screw portion 2e, so that the cap 5 can be attached to the base 2a again as shown in FIG. 5A. When the cap 5 is attached to the base 2a, the inner peripheral surface of the upper outer cylinder wall 2c and the outer peripheral surface of the inner cylindrical wall 5e are in close contact with each other, so that the intrusion of outside air into the storage space S can be suppressed. When the cap 5 is rotated at the start of use, the weakened portion 2q is broken by being stretched radially inward. Therefore, when the cap 5 is attached to the base 2a, the weakened portion 2q comes into contact with the outer peripheral surface of the protrusion 2n while elastically deforming so that the overlap between the tip of the weakened portion 2q and the protrusion 2n shown in FIG. 5B is eliminated. That is, the tip of the weakened portion 2q and the outer circumferential surface of the protrusion 2n can be brought into tight contact with each other, thereby further suppressing the intrusion of outside air into the accommodation space S. Also, the weakened portion 2q is formed in a mountain-shaped cross-sectional shape that inclines upward and then downward as it moves radially inward from the base 2a as shown in Fig. 5B, and the tip of the base 2a has a shape that allows it to easily move radially outward, so that when the cap 5 is moved downward and the protrusion 2n comes into contact with the weakened portion 2q, the weakened portion 2q is not distorted by the protrusion 2n.

[0033] The coating container according to the present invention can also be realized as a coating container 10A shown in FIG. 6. The coating container 10A includes a container body 1A and an inner plug 2A instead of the container body 1 and the inner plug 2 described above. The container body 1A differs from the container body 1 mainly in that it does not include a sloped portion 1f. The inner plug 2A differs from the inner plug 2 mainly in that it does not include a lower piece 2r. The coating container 10A also includes a squeezing member 6.

[0034] The squeezing member 6 includes a flange portion 6a extending horizontally and a cylindrical portion 6b extending downward from the inner edge of the flange portion 6a with the lower end portion extending radially inward. The inner peripheral surface of the cylindrical portion 6b is provided with a conical squeezing portion 6c that slopes downward as it approaches the radially inward direction. The squeezing member 6 is made of a relatively soft material such as rubber, elastomer, or polyethylene (PE), and the squeezing portion 6c is elastically deformable in the vertical direction. The squeezing member 6 is inserted inside the mouth portion 1d and is held in the container body 1A such that the flange portion 6a abuts against the upper end portion of the mouth portion 1d and the lower end portion of the cylindrical portion 6b engages with the shoulder portion 1c.

[0035] In this application container 10A, the base 2a and the connection portion 2f are integrally connected by the weakened portion 2q, as in the application container 10. Therefore, in the application container 10A, the weakened portion 2q will not break unless the cap 5 is intentionally rotated, so that it is possible to prevent the cap from being opened inadvertently. In addition, the effect of further suppressing the intrusion of outside air into the storage space S by bringing the tip of the weakened portion 2q into close contact with the outer circumferential surface of the protruding portion 2n can be obtained, as in the application container 10. When applying the content liquid to the application destination with the application tool 4, the excess content liquid adhering to the application tool 4 can be scraped off by the wiping part 6c.

[0036] Although one embodiment of the present invention has been described above, the present invention is not limited to the specific embodiment, and various modifications and changes are possible within the scope of the spirit of the present invention described in the claims unless otherwise specifically limited in the above description. For example, the configuration of the above-mentioned embodiment can be appropriately added or deleted, and the configuration of one embodiment can be applied to another embodiment. Furthermore, the effects of the above-mentioned embodiment are merely examples of the effects resulting from the present invention, and do not mean that the effects of the present invention are limited to the above-mentioned effects.

[0037] For example, in the above-described embodiment, the first screw portion 2e is provided on the base portion 2a, but it may be provided on the container body 1 instead. [Explanation of symbols]

[0038] 1, 1A: Container body 1a: bottom 1b: Torso 1c: Shoulder 1d: Mouth 1e: Container side engagement part 1f: Inclined section 2, 2A: Middle stopper 2a: base 2b: Lower outer cylinder wall 2c: Upper outer cylinder wall 2d: Base engaging part 2e: First screw part 2f: Connection 2g: Lower inner cylinder wall 2h: Upper inner cylinder wall 2j:Ceiling wall 2k: Inner plug side rib 2m: Connection part engagement part 2n:Protrusion 2p: Inward engagement protrusion 2q: Weakened part 2r: Lower piece (slanted piece) 3: Stick body 3a: Retaining wall 3b: Intermediate wall 3c: Rod-shaped part 3d: Retaining recess 3e: Outward engagement protrusion 4: Applicator 4a: Application part 4b: Retaining protrusion 5: Cap 5a:Top wall 5b: Outer wall 5c: Outer cylindrical wall 5d: Second screw section 5e: Inner cylindrical wall 5f: Cap engagement part 5g: Cap side rib 6: Squeezing material 6a: Flange part 6b: Cylindrical part 6c: Squeezing Department 10, 10A: Application container O: Axis line S: Containment space

Claims

1. A container body that contains a liquid content inside a mouth portion that is open upward; An inner plug attached to the container body; a cap having a second threaded portion that screws into a first threaded portion provided on the container body or the inside plug; a rod body extending inside the mouth portion and having an applicator at its tip, The inside plug is A base portion held by the mouth portion; a connecting portion located inside the base portion and connecting the cap and the rod body; An application container having a weakened portion that connects the base portion and the connection portion and breaks when the cap is rotated in a direction that loosens the second threaded portion relative to the first threaded portion.

2. The applicator container according to claim 1 , wherein the weakened portion connects the base portion and the connection portion over an entire periphery.

3. The application container according to claim 1, wherein the weakened portion is formed with a cross-sectional shape that slopes upward and then downward as it extends inward from the base, and the thickness of the inner end where the weakened portion connects to the connection portion is thinner than the thickness of the outer end where the weakened portion connects to the base.

4. The application container according to claim 1 , wherein the inside plug has an inclined piece that inclines inwardly as it extends downward when attached to the container body.

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