Container with applicator

Abstract

To suppress a resisting force occurring to an applicator when taking the applicator out of / in an opening of a container body while maintaining the following: to suppress an increase in inner pressure of the container body when the applicator is inserted and to squeeze off excessive contents from a rod part when the applicator is pulled out.SOLUTION: A container with an applicator includes: a container body 11 housing a content; an applicator 12 inserted in the container body from an opening 11a of the container body; and an annular squeezing piece 13 which is disposed inside the container body and is elastically deformable with a rod part 22 of the applicator inserted inside. The squeezing piece is provided with a projection part 27 projecting inward in a radial direction of an inner peripheral edge of the squeezing piece. Of the rod part of the applicator, a radius of a maximum outer diameter part 22a of the largest outer diameter of the part located below the squeezing piece is smaller than a distance in a radial direction between an inner peripheral edge 13a of the squeezing piece in an unloaded condition and a central axial line O of the squeezing piece, and is larger than a distance in the radial direction between an inner end part 27a in the radial direction of the projection part in the unloaded condition and the central axial line.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] Conventionally, there has been known a container with an applicator which comprises a container body for containing the contents, an applicator inserted into the container body from the mouth of the container body, and an elastically deformable annular wiping piece disposed inside the container body and through which the rod portion of the applicator is inserted; when the applicator is removed from the mouth of the container body, the rod portion of the applicator is brought into sliding contact with the inner periphery of the wiping piece, so that excess contents adhering to the rod portion are wiped off by the wiping piece. As shown in Patent Document 1, for example, this type of container with applicator has a configuration in which the wiping piece is provided with a protrusion that protrudes radially inward from the inner peripheral edge of the wiping piece, and when the applicator is inserted into the mouth of the container, the rod part of the applicator presses down on the protrusion, causing the wiping piece to bend downward. As a result, when the applicator is inserted into the mouth of the container, a gap is generated between the wiping piece and the outer peripheral surface of the rod part of the applicator around the protrusion, and the inside of the container is opened through this gap, suppressing an increase in the internal pressure of the container. On the other hand, when the applicator is removed from the mouth of the container, the projection is pushed up against the outer circumferential surface of the rod portion of the applicator, causing the wiping piece to elastically deform and turn upward. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-259545 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional containers with an applicator have a problem in that a large resistance is generated in the applicator when the applicator is inserted into or removed from the mouth of the container body.

[0005] To provide a container with an applicator that can suppress a rise in the internal pressure of the container body when the applicator is inserted, and can maintain the ability to squeeze out excess contents from the rod part when the applicator is removed, while suppressing the resistance force generated in the applicator when the applicator is inserted into or removed from the mouth part of the container body. [Means for solving the problem]

[0006] A container with an applicator according to one embodiment of the present invention comprises a container body for holding contents, an applicator inserted into the container body from an opening of the container body, and an elastically deformable annular wiping piece disposed inside the container body and through which a rod portion of the applicator is inserted, the wiping piece is provided with a protrusion that protrudes radially inward from an inner circumferential edge of the wiping piece, and the radius of the maximum outer diameter part of the rod portion of the applicator that is located below the wiping piece is smaller than the radial distance between the inner circumferential edge of the wiping piece and a central axis of the wiping piece in an unloaded state and is greater than the radial distance between the radial inner end of the protrusion and the central axis of the wiping piece in an unloaded state.

[0007] The wiping piece is provided with a protrusion that protrudes radially inward from the inner peripheral edge of the wiping piece, and the radial distance between the radial inner end of the protrusion in an unloaded state and the central axis of the wiping piece is smaller than the radius of the maximum outer diameter part of the rod part of the applicator that is located below the wiping piece. Therefore, when the applicator is inserted into or removed from the mouth of the container body, the maximum outer diameter part of the rod part slides over the radial inner end of the protrusion, which makes it possible to both suppress an increase in the internal pressure of the container body when the applicator is inserted, as with the current system, and to wipe off excess contents from the rod part when the applicator is removed. The radial distance between the inner peripheral edge of the wiping piece in an unloaded state and the central axis of the wiping piece is greater than the radius of the maximum outer diameter part of the rod portion. Therefore, when the applicator is inserted, the inner peripheral edge of the wiping piece and the maximum outer diameter part of the rod portion do not come into contact with each other, and even if the maximum outer diameter part of the rod portion slides over the inner peripheral edge of the wiping piece when the applicator is removed, the friction force generated between the wiping piece and the rod portion can be suppressed.

[0008] When the squeezing piece and the protrusion are in a no-load state, a radial distance between an inner peripheral edge of the squeezing piece and a radially inner end of the protrusion may be 0.1 mm or more and 0.2 mm or less.

[0009] When the squeezing piece and the protrusion are in an unloaded state, the radial distance between the inner peripheral edge of the squeezing piece and the radially inner end of the protrusion is 0.1 mm or more and 0.2 mm or less, so that when the applicator is inserted into or removed from the mouth of the container body, it is possible to suppress the resistance force generated in the applicator while suppressing an increase in the internal pressure of the container body when the applicator is inserted, and it is also possible to squeeze excess contents off the rod portion when the applicator is removed.

[0010] The protrusions may be two or three in number and equally spaced apart in the circumferential direction.

[0011] Since two or three protrusions are provided at equal intervals in the circumferential direction, it is possible to reliably suppress the resistance generated in the applicator when it is inserted into or removed from the mouth of the container body, while suppressing an increase in the internal pressure of the container body when the applicator is inserted, and also to squeeze out excess contents from the rod portion when the applicator is removed. Effect of the Invention

[0012] According to one aspect of the present invention, it is possible to suppress an increase in the internal pressure of the container body when the applicator is inserted, and to maintain the ability to squeeze excess contents off the rod portion when the applicator is removed, while suppressing the resistance force generated in the applicator when the applicator is inserted or removed from the mouth of the container body. [Brief description of the drawings]

[0013] [Figure 1] FIG. 2 is a partially enlarged vertical cross-sectional view of an applicator-equipped container shown as one embodiment. [Diagram 2] 2 is a half vertical sectional view showing the ironing piece and the protrusions of FIG. 1 in an unloaded state. FIG. [Diagram 3] 2 is a top view showing the ironing tube member of FIG. 1 in an unloaded state. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, an applicator-equipped container according to one embodiment of the present invention will be described with reference to the drawings. As shown in Fig. 1, the container with applicator 1 according to this embodiment includes a container body 11, an applicator 12, and a wiping piece 13. The container body 11 is formed in a bottomed cylindrical shape, the applicator 12 is formed in a rod shape, and the wiping piece 13 is formed in a ring shape. The container body 11, the applicator 12, and the wiping piece 13 are arranged coaxially with a common axis.

[0015] Hereinafter, this common axis will be referred to as the central axis O, the side of the squeezing piece 13 along the central axis O will be referred to as the upper side, the bottom side of the container body 11 along the central axis O will be referred to as the lower side, and the direction of the central axis O will be referred to as the up-down direction. A direction that intersects with the central axis O as viewed from the up-down direction will be referred to as the radial direction, and a direction that rotates around the central axis O as viewed from the up-down direction will be referred to as the circumferential direction.

[0016] The container body 11 contains contents such as mascara, eyeliner, and lip gloss. A male thread is formed on the outer peripheral surface of the mouth 11a of the container body 11. A topped cylindrical cap C is removably screwed onto the mouth 11a of the container body 11. A female thread is formed on the inner peripheral surface of the lower part of the cap C. The cap C may be removably fitted into the mouth 11a of the container body 11, for example, by undercut fitting.

[0017] Applicator 12 is inserted into container body 11 through opening 11a of container body 11. Applicator 12 is configured by connecting fixing part 21, rod part 22, and an applicator part (not shown) from top to bottom in this order. The fixed part 21 is formed in a bottomed cylindrical shape, and is fitted and fixed in a portion of the cap C that is located above the female threaded part. The rod part 22 extends downward from the bottom of the fixed part 21. The rod part 22 is inserted into the inside of the scraping piece 13 and inserted into the inside of the container body 11. The applicator part is located within the bottom of the container body 11. Examples of the applicator part include a brush, a paint brush, and a sponge.

[0018] A bulging portion 24 is provided on the upper portion of the rod portion 22, bulging outward in the radial direction and extending over the entire circumferential length. The upper and lower surfaces of the bulging portion 24 extend in such a way that they approach each other in the vertical direction from the inner side to the outer side in the radial direction. The lower surface of the bulging portion 24 is close to the upper surface of the ironing piece 13. The bulging portion 24 is located within the mouth portion 11a of the container body 11. A recess 25 is formed on the outer peripheral surface of a portion of the rod portion 22 that is located below the bulging portion 24, and extends radially inward over the entire length of the recess in the circumferential direction. The recess 25 is located within the body 11b of the container body 11. A portion of the outer peripheral surface of the rod portion 22 that is connected to the recess 25 from below the recess 25 forms the maximum outer diameter portion 22a, which has the largest outer diameter among the portions of the rod portion 22 that are located below the ironing piece 13. The entire portion of the rod portion 22 that is located below the recess 25 and above the connecting portion with the application portion forms the maximum outer diameter portion 22a. At least the lower portion of the maximum outer diameter portion 22a of the rod portion 22 is immersed in the contents in the container body 11.

[0019] Of the inner surfaces of the recessed portion 25, upper end surface 25a, which is located at the upper end and faces downward, extends upward as it moves radially outward. Of the inner surfaces of the recessed portion 25, lower end surface 25b, which is located at the lower end and faces upward, is connected to maximum outer diameter portion 22a, and extends downward as it moves radially outward. In a vertical cross-sectional view along the up-down direction, the length of lower end surface 25b of the recessed portion 25 is longer than the length of upper end surface 25a of the recessed portion 25.

[0020] The ironing piece 13 is formed to be elastically deformable, and is disposed inside the container body 11 . The scraping piece 13 protrudes radially inward from the inner peripheral surface of a cylindrical portion 26 that is fitted and fixed in the mouth portion 11a of the container body 11. A lower portion of the cylindrical portion 26 protrudes downward from the mouth portion 11a of the container body 11. A retaining projection 26a is formed at the lower portion of the cylindrical portion 26, protruding radially outward and abutting or adjacent to the lower end opening edge of the mouth portion 11a from below.

[0021] The ironing piece 13 and the protrusion 27 in a state where they are not elastically deformed under no load will be described below with reference to Figs.

[0022] The upper surface of the ironing piece 13 extends downward as it moves radially inward. The radially inner end of the upper surface of the ironing piece 13 (hereinafter referred to as the curved portion 13b) presents a curved shape that protrudes diagonally upward and faces radially inward in a vertical cross section. Of the upper surface of the ironing piece 13, a portion that is located radially outward from the curved portion 13b (hereinafter referred to as the straight portion 13c) extends linearly in the vertical cross section. An inner peripheral edge 13a of the squeezing piece 13 extends straight downward from a curved portion 13b on the upper surface of the squeezing piece 13. The radially inner end 13d of the lower surface of the ironing piece 13 extends straight outward in the radial direction from the lower end of the inner peripheral edge 13a of the ironing piece 13. The portion of the lower surface of the ironing piece 13 that is located radially outward from the radially inner end 13d extends straight upward as it moves radially outward.

[0023] The ironing piece 13 is provided with a protrusion 27 that protrudes radially inward from the inner peripheral edge 13a of the ironing piece 13. Two protrusions 27 are provided at equal intervals in the circumferential direction. Alternatively, three protrusions 27 may be provided at equal intervals in the circumferential direction. The squeezing piece 13, the protrusions 27, and the tubular portion 26 constitute an squeezing tube member integrally formed from a soft material such as nitrile rubber (NBR), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), or the like.

[0024] The protrusion 27 protrudes radially inward from the radial inner end of the straight portion 13c on the upper surface of the ironing piece 13. The upper and lower surfaces of the protrusion 27 extend straight in the radial direction. The radial distance between the inner peripheral edge 13a of the ironing piece 13 and the radial inner end 27a of the protrusion 27 is 0.1 mm or more and 0.2 mm or less. The radial inner end 27a of the protrusion 27 is a surface that extends in the vertical and circumferential directions. In the protrusion 27, the connection portion between the radial inner end 27a and the lower surface presents a curved protrusion that protrudes diagonally downward toward the radial inner side in the vertical cross section. In the protrusion 27, the connection portion between the radial inner end 27a and the upper surface presents a curved protrusion that protrudes diagonally upward toward the radial inner side in the vertical cross section.

[0025] Among the portions of the rod portion 22 of the applicator 12 located below the squeezing piece 13, the radius of the maximum outer diameter portion 22a, which has the largest outer diameter, is smaller than the radial distance between the inner peripheral edge 13a of the squeezing piece 13 in the unloaded state and the central axis O, and is larger than the radial distance between the radial inner end portion 27a of the protrusion 27 in the unloaded state and the central axis O.

[0026] 1, when the cap C is attached to the mouth 11a of the container body 11, the protrusion 27 is pressed against the lower surface of the bulge 24 of the rod 22, and at least the ironing piece 13 is elastically deformed. At this time, the radial inner end 27a of the protrusion 27 and the ironing piece 13 are spaced radially outward from the outer circumferential surface of the rod 22. Of the rod portion 22, the radial inner end 27a of the protrusion 27 is located below the radially opposing portion when the cap C is attached to the mouth portion 11a, and the radius of the outer peripheral surface at the portion located above the maximum outer diameter portion 22a is less than the radial distance between the radial inner end 27a of the protrusion 27 in an unloaded state where it is not pressed into the bulge portion 24 and the central axis O.

[0027] In the process of removing the applicator 12 from the mouth 11a of the container body 11, when the maximum outer diameter portion 22a of the rod portion 22 of the applicator 12 reaches the inner peripheral edge 13a of the squeezing piece 13, in the illustrated example, the squeezing piece 13 and the protrusion 27 are radially opposite the recessed portion 25 and are not elastically deformed in the unloaded state, and the inner peripheral edge 13a of the squeezing piece 13 is located radially outward from the maximum outer diameter portion 22a, and the radial inner end portion 27a of the protrusion 27 is located radially inward from the maximum outer diameter portion 22a.

[0028] As described above, in the applicator-equipped container 1 of this embodiment, the wiping piece 13 is provided with a protrusion 27 that protrudes radially inward from the inner peripheral edge 13a of the wiping piece 13, and the radial distance between the radial inner end 27a of the protrusion 27 in the unloaded state and the central axis O is smaller than the radius of the maximum outer diameter portion 22a of the rod portion 22 of the applicator 12. Therefore, when applicator 12 is inserted or removed from mouth 11a of container body 11, maximum outer diameter portion 22a of rod portion 22 slides over radial inner end portion 27a of protrusion 27, which, like the current method, prevents the internal pressure of container body 11 from increasing when applicator 12 is inserted, and also allows excess contents to be squeezed off from rod portion 22 when applicator 12 is removed.

[0029] The radial distance between the inner peripheral edge 13a of the wiping piece 13 in an unloaded state and the central axis O is greater than the radius of the maximum outer diameter portion 22a of the rod portion 22. Therefore, when the applicator 12 is inserted, the inner peripheral edge 13a of the wiping piece 13 and the maximum outer diameter portion 22a of the rod portion 22 do not come into contact with each other, and even if the maximum outer diameter portion 22a of the rod portion 22 slides over the inner peripheral edge of the wiping piece 13 when the applicator 12 is removed, the frictional force generated between the wiping piece 13 and the rod portion 22 can be suppressed.

[0030] When squeezing piece 13 and protrusion 27 are in an unloaded state, the radial distance between inner peripheral edge 13a of squeezing piece 13 and radial inner end 27a of protrusion 27 is 0.1 mm or more and 0.2 mm or less, so that when applicator 12 is inserted into or removed from mouth 11a of container body 11, it is possible to reliably suppress the resistance force generated in applicator 12 while suppressing an increase in the internal pressure of container body 11 when applicator 12 is inserted, and to squeeze excess contents off rod portion 22 when applicator 12 is removed.

[0031] Since two or three protrusions 27 are provided at equal intervals in the circumferential direction, it is possible to reliably suppress the resistance force generated in applicator 12 when applicator 12 is inserted into or removed from mouth 11a of container body 11, while suppressing an increase in internal pressure in container body 11 when applicator 12 is inserted, and also to squeeze excess contents off rod portion 22 when applicator 12 is removed.

[0032] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0033] For example, the recess 25 may not be formed in the rod portion 22, and the radius of the outer circumferential surface of the rod portion 22 at a portion where the radial inner end 27a of the protrusion 27 is located below the radially opposing portion when the cap C is attached to the mouth portion 11a and above the maximum outer diameter portion 22a may be made smaller than the radial distance between the radial inner end 27a of the protrusion 27 in an unloaded state and the central axis O. Even in this configuration, when the maximum outer diameter portion 22a of the rod portion 22 of the applicator 12 reaches the inner peripheral edge 13a of the squeezing piece 13 in the process of pulling the applicator 12 out of the mouth portion 11a, the squeezing piece 13 and the protrusion portion 27 can be in a state where they are not elastically deformed in an unloaded state.

[0034] The number of protrusions 27 provided may be one, or four or more.

[0035] In addition, within the scope of the invention, the components in the above-described embodiments may be replaced with well-known components, and the above-described embodiments and the above-described variations may be combined as appropriate. [Explanation of symbols]

[0036] 1 Container with applicator 11 Container body 11a Mouth 12 Applicator 13 Squeezing piece 13a Inner edge of iron piece 22 Rod part 22a Maximum outer diameter part 27 Protrusion 27a: radial inner end of protrusion O center axis

Claims

1. A container body for accommodating contents; an applicator inserted into the container body from an opening of the container body; a ring-shaped elastically deformable wiper piece disposed inside the container body and having a rod portion of the applicator inserted therein; The ironing piece is provided with a protrusion protruding radially inward from an inner peripheral edge of the ironing piece, The radius of the largest outer diameter portion of the rod portion of the applicator located below the wiper piece is It is smaller than the radial distance between the inner peripheral edge of the ironing piece and the central axis of the ironing piece in the unloaded state, and a radial distance between the radial inner end of the protrusion in an unloaded state and the central axis of the wiping piece, the radial distance being greater than the radial distance between the radial inner end of the protrusion in an unloaded state and the central axis of the wiping piece.

2. 2. The container with applicator according to claim 1, wherein when the squeezing piece and the protrusion are in an unloaded state, a radial distance between an inner peripheral edge of the squeezing piece and a radially inner end of the protrusion is 0.1 mm or more and 0.2 mm or less.

3. The applicator-equipped container according to claim 1 or 2, wherein the number of the protrusions provided is two or three, and the protrusions are equally spaced apart in the circumferential direction.

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