WO2019107051A1 - Cosmetic material package and cosmetic material container - Google Patents

Abstract

The present invention comprises: a container body 1 made from hard resin; a lid 2 made from hard resin; and a retaining ring 3 made from hard resin. The container body 1 includes an outer cylindrical part 12. An annular protrusion 22 is integrally formed on the lower surface of the lid 2. The retaining ring 3 includes an annular seal piece 32 that extends radially outward. In a closed lid state, the annular protrusion 22 fits into an annular gap 50 between the tip part of the annular seal piece 32 of the retaining ring 3 and the outer cylinder part 12 of the container body 1 and comes into contact with an inner peripheral surface 12a of the outer cylindrical part 12 of the container body 1 and the tip part of the annular seal piece 32 of the retaining ring 3.

Description

Cosmetic package and cosmetic container

The present invention relates to a cosmetic package containing a liquid cosmetic such as a liquid foundation and a cosmetic container for containing a liquid cosmetic.

As in the following Patent Documents 1 to 4, the container for containing the cosmetic includes a packing between the lid and the container body. The packing is made of a soft elastic material such as rubber or elastomer. Airtightness between the container body and the lid is secured by utilizing the large elastic force of the packing.

The cosmetic contains solvents, ultraviolet absorbers and the like. When the solvent or the like contained in the cosmetic adheres to the packing, the packing may swell. As a result, there is a problem that the lid is difficult to close and air tightness is reduced. In addition, the adhesion of the solvent and the like to the packing may deteriorate the packing and the air tightness.

On the other hand, there is also one in which a liquid foundation is impregnated into a support such as a sponge and the support is accommodated in a cosmetic container. An example of the cosmetic container is shown in FIG. 16 to FIG. The cosmetic container has a double structure including an outer container 100 and an inner container 200. The inner container 200 is detachably attached to the outer container 100. FIG. 16 shows a state in which the inner container 200 is attached to the outer container 100. FIG. 17 shows the inner container 200 removed from the outer container 100. The outer container 100 includes an outer container main body 101 and an outer lid 102. The inner container 200 includes an inner container main body 201, an inner lid 202 and a retaining ring 203. The holder 300 is housed in the inner container body 201. The illustration of the holder 300 is omitted in FIGS. 18 and 19.

As shown in FIGS. 18 and 19, a cylindrical outer cylinder portion 201 b is formed on the radially outer side of the upper portion of the side surface portion 201 a of the inner container main body 201. An annular groove 201c opened upward is formed between the upper portion of the side surface portion 201a and the outer cylindrical portion 201b. The retaining ring 203 is for preventing the holder 300 accommodated in the inner container main body 201 from coming out of the inner container main body 201. The retaining ring 203 is attached to the opening edge of the inner container body 201. The retaining ring 203 is a cylindrical fitting portion 203a fitted to the outer peripheral surface of the upper portion of the side surface portion 201b of the inner container main body 201, and an annular flange portion 203b extending radially inward from the upper end portion of the fitting portion 203a. And have. The annular flange portion 203 b of the retaining ring 203 covers the peripheral edge of the opening of the inner container main body 201. The annular flange portion 203 b of the retaining ring 203 prevents the holder 300 from coming out of the inner container main body 201.

A packing 210 is fixed to the lower surface of the inner lid 202 by adhesion or the like. The packing 210 is integral with the inner lid 202. The lower surface of the packing 210 is formed with an annular protrusion 210 a that protrudes downward. When the inner lid 202 is closed as shown in FIG. 19, the annular protrusion 210 a of the packing 210 enters the annular groove 201 c of the inner container main body 201. The outer peripheral surface of the annular protrusion 210 a is in close contact with the inner peripheral surface of the outer cylindrical portion 201 b of the inner container main body 201. The tightness of the inner container 200 is secured by the close contact between the annular protrusion 210a and the outer cylindrical portion 201b. In addition to being provided on the inner lid 202, the packing 210 may be provided on the annular groove 201c of the inner container main body 201.

Also in such a cosmetic container, as described above, the packing 210 is swollen or degraded by the solvent or the like contained in the foundation. As a result, the airtightness of the inner container 200 is reduced. Since the foundation is liquid, when the airtightness of the inner container 200 is reduced, problems occur such as the foundation being dried or being reduced in weight.

JP-A-9-37839 JP-A-11-56456 JP, 2005-206199, A JP 2005-239241 A

Therefore, the present invention is made in view of the above-mentioned conventional problems, and it is an object of the present invention to prevent a reduction in airtightness in a cosmetic container provided with a retaining ring at the opening edge of the container body.

The present invention has been made to solve the above-mentioned problems, and the cosmetic package according to the present invention comprises a container body made of hard resin having a circular opening and hinged to the container body. A lid made of a hard resin, a holder which is contained in a container main body and which is impregnated with a liquid cosmetic, and hard resin which is attached to an opening edge of the container main body to prevent the holder from coming off from the container main body A container body comprising a bottom portion, a side portion extending upward from a peripheral portion of the bottom portion, and a position located via an annular groove outside the side portion And an annular projection is integrally formed on the lower surface of the lid, and the retaining ring is a cylindrical fitting portion fitted to the upper outer peripheral surface of the side surface portion of the container body. Extending radially inward from the upper end of the fitting portion to cover the peripheral edge of the opening of the container body And an annular seal piece extending radially outward from the fitting portion, and in the closed state, the annular projection is formed by the tip of the annular seal piece of the retaining ring and the outer cylindrical portion of the container body And fit into the inner circumferential surface of the outer cylindrical portion of the container body and the tip of the annular seal piece of the retaining ring.

In the closed state, the annular projection fits in the annular gap between the tip of the annular seal piece of the retaining ring and the outer cylindrical portion of the container body. The annular protrusion abuts on the inner peripheral surface of the outer cylindrical portion of the container body and also abuts on the tip of the annular seal piece of the retaining ring. In other words, the annular projection is forced into the annular gap between the tip of the annular seal piece of the retaining ring and the outer cylindrical portion of the container body. As a result, the airtightness of the container is secured between the tip of the annular seal piece of the annular protrusion and the retaining ring and the outer cylindrical portion of the container body. Further, since the container body, the lid and the retaining ring are not all made of soft resin such as rubber or elastomer but made of hard resin, even if the liquid cosmetic adheres to the container body, the lid or the retaining ring, the container body The lid and the retaining ring are unlikely to swell or deteriorate. Therefore, airtightness can be maintained for a long time.

The lid pivots about the hinge. Of the entire circumference of the annular projection, a portion close to the hinge portion easily interferes with the upper surface of the annular seal piece. Therefore, it is preferable that the annular seal pieces extend obliquely downward from the fitting portion. In addition, it is preferable that the base end of the annular seal piece is located below the upper end of the fitting portion by a predetermined distance. By comprising in this way, it can suppress that an annular protrusion and an annular seal piece interfere in the location close | similar to a hinge part with rotation of a lid | cover.

Furthermore, it is preferable that a tapered surface continuous with the upper surface of the annular seal piece is formed on the upper end portion of the outer peripheral surface of the fitting portion of the retaining ring while expanding in diameter downward. Interference with the annular projection and the fitting portion or the annular seal piece can be suppressed at a location near the hinge portion as the lid rotates.

In addition, it is preferable that a locally thin annular constriction portion be formed at a midway portion between the distal end portion and the proximal end portion of the annular projection. When the annular constriction part is formed in the middle part of the annular projection, the tip part of the annular projection is easily deformed in the radial direction with the annular constriction part as a fulcrum. Therefore, in the closed state, the annular protrusion easily adheres to the inner peripheral surface of the outer cylindrical portion of the container main body, and the annular protrusion easily adheres to the tip of the annular seal piece. Therefore, the airtightness is further improved.

Further, the cosmetic container according to the present invention has a circular opening and is rigidly connected to a container body made of hard resin for accommodating a carrier impregnated with liquid cosmetic and hinged to the container body. A cosmetic container comprising a lid made of a hard resin and a retaining ring made of hard resin mounted on the opening edge of the container body to prevent the holder from coming off the container body, the container body being A bottom surface portion, a side surface portion extending upward from the peripheral edge portion of the bottom surface portion, and an outer cylinder portion positioned outside the side surface portion via an annular groove, and an annular projection is integrally formed on the lower surface of the lid The retaining ring is formed in a cylindrical fitting portion fitted on the upper outer peripheral surface of the side surface portion of the container body, and extends radially inward from the upper end portion of the fitting portion to open the opening of the container body And an annular sealing piece extending radially outward from the fitting portion. In the closed state, the annular projection is fitted in the annular gap between the tip of the annular seal piece of the retaining ring and the outer cylindrical portion of the container main body, and the inner peripheral surface of the outer cylindrical portion of the container main body And a tip end of the annular seal piece of the retaining ring.

As described above, when the annular projection of the lid abuts on the outer cylindrical portion of the container body and the annular seal piece of the retaining ring in the closed state, the airtightness of the container is secured. In addition, since the annular protrusion, the lid and the retaining ring are made of hard resin, the airtightness does not decrease even if the cosmetic adheres.

It is sectional drawing which shows the cosmetics container in one Embodiment of this invention, Comprising: (a) shows a closed state, (b) shows an open state. Sectional drawing which shows the container main body of the cosmetics container. Sectional drawing which shows the lid | cover of the cosmetics container. The principal part expanded sectional view of the lid of the cosmetics container. The principal part expanded sectional view of the retaining ring of the same cosmetics container. It is principal part sectional drawing of the location away from the hinge part of the cosmetics container, Comprising: The open state is shown. It is a principal part enlarged view of the location away from the hinge part of the cosmetics container, Comprising: The state in the middle of which a lid closes is shown. It is a principal part enlarged view of the location away from the hinge part of the said cosmetics container, Comprising: The closed state is shown. It is an important section sectional view of a part near the hinge part of the cosmetics container, and shows an opened state. It is an important section sectional view of a part near the hinge part of the cosmetics container, and the state where a lid is closing is shown. It is an important section sectional view of a part near the hinge part of the cosmetics container, and the state where a lid is closing is shown. It is an important section sectional view of a part near the hinge part of the cosmetics container, and the state where a lid is closing is shown. It is principal part sectional drawing of the location near the hinge part of the cosmetics container, Comprising: The closed state is shown. Principal part sectional drawing corresponding to FIG. 6 of the cosmetics container in other embodiment of this invention. Principal part sectional drawing corresponding to FIG. 8 of the cosmetics container. The perspective view which shows an example of a cosmetics container. The disassembled perspective view of the cosmetics container. Sectional drawing which decomposed | disassembled the inner container of the cosmetics container. The principal part expanded sectional view which shows the closed state of the inner container of the cosmetics container.

Hereinafter, a cosmetic package and a cosmetic container used therefor according to an embodiment of the present invention will be described with reference to FIGS. 1 to 13. The cosmetic package includes a cosmetic container and a holder 4 accommodated in the cosmetic container. The cosmetic container in the present embodiment is an inner container in a double-layered container provided with an outer container and an inner container. The inner container as the cosmetic container is detachably mounted to an outer container (not shown) as in the case shown in FIGS. The inner container includes a container body 1 for containing the holding body 4 impregnated with the liquid cosmetic, a lid 2 hinged to the container body 1, and a retaining member attached to the opening edge of the container body 1 The ring 3 is provided.

<Holder 4>
The holding body 4 adsorbs and holds the liquid cosmetic. The liquid cosmetic is, for example, liquid foundation or teak. The holding body 4 is a soft thing which can be easily deformed. The holding body 4 is a porous structure. The holding body 4 may be, for example, a sponge, and may be foam-molded from a synthetic resin. As the foamed resin, for example, foamed urethane is preferable. The liquid cosmetic is impregnated into the holder 4. The holder 4 is circular in plan view. The holder 4 is in the form of a cylinder whose dimension in the direction of the center line is smaller than its diameter.

<Container body 1>
The container body 1 has a circular opening on the top surface. The container main body 1 includes a bottom surface portion 10, a side surface portion 11, an outer cylinder portion 12, a flange portion 13 and a hinge portion 14. The bottom portion 10 is circular and flat. The side surface portion 11 extends upward from the peripheral edge portion of the bottom surface portion 10. The side portion 11 is cylindrical. The bottom portion 10 and the side portion 11 form an accommodating portion for accommodating the holding body 4. The height of the side surface portion 11 is higher than the height of the holding body 4. A circular opening is formed inside the upper end of the side surface 11. The upper end portion of the side surface portion 11 is an opening edge.

The outer cylindrical portion 12 is located radially outward of the side surface portion 11. The outer cylindrical portion 12 is cylindrical. The outer cylindrical portion 12 is coaxial with the side surface portion 11. An annular space is formed between the outer cylindrical portion 12 and the side surface portion 11. The annular space is open at the top. Therefore, an annular groove opened upward is formed between the side surface portion 11 and the outer cylindrical portion 12. The annular groove is located outside the opening of the housing. The lower end portion of the outer cylindrical portion 12 is connected to an intermediate portion in the vertical direction of the side surface portion 11 by an annular connecting portion 15. The connecting portion 15 is located above the bottom portion 10. The connection portion 15 extends substantially horizontally outward from the outer peripheral surface of the side surface portion 11 in the radial direction. The connecting portion 15 is the bottom of the annular groove. The outer cylindrical portion 12 protrudes above the side surface portion 11. The upper end portion of the outer cylindrical portion 12 is located above the upper end portion of the side surface portion 11. An annular engagement recess 16 is formed on the outer peripheral surface of the upper portion of the side surface portion 11 located above the connection portion 15. The inner peripheral surface 12a of the outer cylindrical portion 12 is expanded in diameter toward the upper side at a constant taper angle. The taper angle of the inner peripheral surface 12a of the outer cylindrical portion 12 is, for example, 2 degrees to 6 degrees. That is, the gradient of the inner peripheral surface 12a of the outer cylindrical portion 12 is, for example, 1 degree to 3 degrees.

The flange portion 13 is extended radially outward from the upper end portion of the outer cylindrical portion 12. The flange portion 13 may be formed over the entire circumference of the upper end portion of the outer cylindrical portion 12 or may be formed on only a part of the entire circumference of the upper end portion of the outer cylindrical portion 12. The hinge portion 14 is provided on the flange portion 13. The hinge portion 14 is located radially outward of the outer cylinder portion 12. The center line of the hinge portion 14 is in the horizontal direction. The center line of the hinge portion 14 is positioned higher than the upper end portion of the side surface portion 11 and higher than the upper end portion of the outer cylindrical portion 12.

<Lid 2>
The lid 2 is for closing the opening of the housing portion to make the housing portion airtight. The lid 2 is openably connected to the container body 1. The lid 2 is connected to the hinge portion 14 of the container body 1. The lid 2 pivots up and down with the hinge portion 14 as a fulcrum. FIG. 1 (a) shows a closed state in which the lid 2 is closed, and FIG. 1 (b) shows an open state in which the lid 2 is opened. The lid 2 is circular as a whole. A hinge portion 20 connected to the hinge portion 14 of the container body 1 is provided on the outer peripheral portion of the lid 2.

The lid 2 covers the upper end portion of the side surface portion 11 of the container body 1 from the upper side, and covers the upper end portion of the outer cylindrical portion 12 of the container body 1 from the upper side. The lid 2 covers the opening of the housing and covers the annular groove. The upper surface of the lid 2 is formed with a puff receiving recess 21 for receiving a puff (not shown). The puff housing recess 21 is open at the upper side. The puff has a disk shape, and the puff storage recess 21 has a circular shape in plan view corresponding to the shape of the puff.

The outer peripheral portion of the lower surface of the lid 2 abuts on the upper end surface of the outer cylindrical portion 12 of the container body 1 over the entire periphery. The main part of the lower surface of the lid 2 is spaced upward with respect to the upper end surface of the side surface portion 11 of the container body 1. The main part of the lower surface of the lid 2 is also spaced upward with respect to the retaining ring 3. An annular projection 22 projects downward from the lower surface of the lid 2. The annular projection 22 is integrally formed on the lid 2. The material of the annular projection 22 is the same as the material of the lid 2. The annular projection 22 divides the lower surface of the lid 2 into an inner portion and an outer portion. Of the lower surface of the lid 2, the portion outside the annular projection 22 is an annular outer peripheral portion, and the portion inside the annular projection 22 is a circular main portion. The height of the outer peripheral portion of the lower surface of the lid 2 is slightly higher than the height of the main portion.

An enlarged view of the annular projection 22 is shown in FIG. The thickness of the annular projection 22 is the radial dimension of the annular projection 22. The thickness of the annular projection 22 is gradually reduced as a whole from the upper end or proximal end to the lower end or distal end of the annular projection 22. The inner circumferential surface 22a of the annular projection 22 is a smooth surface without irregularities. An annular recess 23 is formed at a middle portion in the vertical direction of the outer peripheral surface 22 b of the annular protrusion 22. By forming the annular recess 23 on the outer peripheral surface 22 b of the annular protrusion 22, a locally thin annular constriction portion 24 is formed in the middle of the annular protrusion 22 in the vertical direction. A portion of the total length of the annular projection 22 on the tip side of the annular constricted portion 24 is simply referred to as a tip portion 25. The outer peripheral surface 25b of the tip portion 25 of the annular projection 22 is reduced in diameter toward the lower side at a constant taper angle. It is preferable that the taper angle of the outer peripheral surface 25b of the tip 25 of the annular projection 22 be the same as the taper angle of the inner peripheral surface 12a of the outer cylindrical portion 12 of the container main body 1 when the lid 2 is horizontal. Specifically, the taper angle of the outer peripheral surface 25b of the tip portion 25 of the annular protrusion 22 is, for example, 2 degrees to 6 degrees. An annular engagement recess 26 smaller than the annular recess 23 and shallower than the annular recess 23 is formed at a position above the annular recess 23 of the outer peripheral surface 22 b of the annular protrusion 22. The inner peripheral surface 22a of the annular protrusion 22 is diameter-expanded toward the lower side by a fixed taper angle. Preferably, at least the inner circumferential surface 25a of the tip 25 of the entire length of the inner circumferential surface 22a of the annular projection 22 is expanded downward at a constant taper angle. The taper angle of the inner circumferential surface 25a of the tip portion 25 of the annular projection 22 is preferably the same as the taper angle of the annular seal surface 32c of the annular seal piece 32 of the retaining ring 3 described later. Specifically, the taper angle of the inner circumferential surface 25a of the tip portion 25 of the annular projection 22 is, for example, 2 degrees to 30 degrees. That is, the slope of the inner circumferential surface 25a of the tip 25 of the annular projection 22 is, for example, 1 degree to 15 degrees.

<Retaining ring 3>
The retaining ring 3 is for preventing the holder 4 accommodated in the accommodating portion of the container body 1 from being pulled out of the opening of the accommodating portion. The retaining ring 3 is annular as a whole. The retaining ring 3 has a cylindrical fitting portion 30, an annular flange 31 extending radially inward from the upper end of the fitting portion 30, and an annular seal piece 32 extending radially outward from the fitting portion 30. Is equipped.

The fitting portion 30 is fitted to the upper portion of the outer peripheral surface of the side surface portion 11 of the container body 1. The upper portion of the outer peripheral surface of the side surface portion 11 of the container main body 1 is a portion of the outer peripheral surface of the side surface portion 11 of the container main body 1 located above the connecting portion 15. The lower end surface of the fitting portion 30 abuts on the upper surface of the connecting portion 15 of the container body 1 or is slightly separated above the upper surface of the connecting portion 15. An annular engagement convex portion 33 is provided radially inward on the inner peripheral surface of the fitting portion 30. The engagement convex portion 33 on the inner peripheral surface of the fitting portion 30 engages with the engagement concave portion 16 of the container main body 1. At the upper end portion of the outer peripheral surface of the fitting portion 30, a tapered surface 34 whose diameter is expanded downward is formed. The tapered surface 34 is continuous with the upper surface of the annular seal piece 32.

The annular flange 31 protrudes radially inward from the upper end of the side surface 11 of the container body 1 and covers the peripheral edge of the opening of the container body 1 from the upper side. The lower surface of the annular collar portion 31 abuts on the upper end surface of the side surface portion 11 of the container main body 1. An annular positioning projection 35 is provided on the lower surface of the annular flange 31 in a protruding manner. The positioning projection 35 is located radially inward of the upper end portion of the side surface portion 11 of the container body 1. The positioning projection 35 is fitted on the inner peripheral surface of the upper end portion of the side surface portion 11 of the container body 1. The positioning projection 35 is in contact with the inner peripheral surface of the upper end portion of the side surface portion 11 of the container main body 1 or is positioned inside the inner peripheral surface of the upper end portion of the side surface portion 11 of the container main body 1 with a gap. The upper end portion of the side surface portion 11 of the container body 1 is located between the fitting portion 30 of the retaining ring 3 and the positioning protrusion 35. The inner edge of the annular collar portion 31 is located radially inward of the positioning projection 35. The inner diameter of the annular collar 31 is smaller than the diameter of the holder 4.

The annular seal piece 32 extends radially outward and downward from a position spaced lower than the upper end of the fitting portion 30. The annular seal piece 32 is umbrella shaped. The base end portion of the annular seal piece 32 is located below the upper end portion of the fitting portion 30 by a predetermined distance. The tip of the annular seal piece 32 is located below the proximal end of the annular seal piece 32. The annular seal piece 32 is inclined downward at an angle of more than 45 degrees with respect to the horizontal plane. The upper surface of the annular seal piece 32 is provided with a steeply inclined surface 32 b located on the base end side of the annular seal piece 32 and a gently inclined surface 32 c located on the tip side of the annular seal piece 32. The steeply inclined surface 32b has a larger inclination angle to the horizontal surface than the gently inclined surface 32c. The gently inclined surface 32c may be a horizontal surface. The tapered surface 34 of the fitting portion 30 is continuous with the steeply inclined surface 32 b. The taper angle of the lower surface 32a of the annular seal piece 32 is constant throughout, but may vary from the proximal end to the distal end. By forming the gently inclined surface 32c on the tip end side of the upper surface of the annular seal piece 32, a locally thickened portion is formed at the tip portion of the annular seal piece 32. The boundary between the lower surface 32 a of the annular seal piece 32 and the outer peripheral surface of the fitting portion 30 is preferably a curved surface, and can prevent breakage at the base end of the annular seal 32.

An annular sealing surface 32 d is formed at the tip of the annular sealing piece 32. The annular seal surface 32 d is the surface of the annular seal piece 32 located on the most radially outer side. The annular seal surface 32 d is continuous with the radially outer side of the gently inclined surface 32 c of the upper surface of the annular seal piece 32. The annular seal surface 32d is a truncated conical surface whose diameter decreases upward at a constant taper angle. The taper angle of the annular sealing surface 32d is, for example, 2 degrees to 30 degrees. That is, the gradient of the annular seal surface 32d is, for example, 1 degree to 15 degrees. The annular sealing surface 32 d is located at a position close to the inner peripheral surface 12 a of the outer cylindrical portion 12 of the container body 1. The annular sealing surface 32 d is spaced radially inward with respect to the inner peripheral surface 12 a of the outer cylindrical portion 12 of the container body 1. An annular gap 50 is formed between the annular sealing surface 32 d and the inner circumferential surface 12 a of the outer cylindrical portion 12 of the container body 1. The annular gap 50 is wider toward the upper side and narrower toward the lower side. The annular sealing surface 32 d is located in the middle of the annular groove of the container body 1 in the vertical direction.

<Material>
The container body 1, the lid 2 and the retaining ring 3 are all made of hard synthetic resin. The container body 1, the lid 2 and the retaining ring 3 are formed by, for example, injection molding or the like. The container body 1, the lid 2 and the retaining ring 3 are, for example, injection molded articles. The hard resin is, for example, a polypropylene resin.

<Opening and closing operation of lid 2>
6 to 8 show enlarged views of a portion on the opposite side to the hinges 14 and 20 by 180 degrees. This point is the point farthest from the hinges 14 and 20. The lid 2 is closed from the state shown in FIG. 6 to the state shown in FIG. FIG. 8 shows the closed state. While the lid 2 is closed, the tip of the annular projection 22 of the lid 2 abuts on the inner chamfer 12b of the upper end of the outer cylindrical portion 12 of the container body 1 as shown in FIG. When the chamfered portion 12b is formed inside the upper end portion of the outer cylindrical portion 12 of the container main body 1, the degree of interference between the annular projection 22 of the lid 2 and the upper end portion of the outer cylindrical portion 12 of the container main body 1 is reduced. be able to. After the annular projection 22 of the lid 2 abuts on the outer cylindrical portion 12 of the container body 1, the tip 25 of the annular projection 22 is bent radially inward with the annular constricted portion 24 as a fulcrum. Then, the annular projection 22 of the lid 2 descends while sliding on the inner peripheral surface 12 a of the outer cylindrical portion 12 of the container main body 1 as the lid 2 is closed. Since the inner peripheral surface 12a of the outer cylindrical portion 12 of the container body 1 is expanded upward at a predetermined taper angle, the annular projection 22 of the lid 2 and the inner peripheral surface 12a of the outer cylindrical portion 12 of the container main body 1 The degree of interference with is small. Therefore, the annular projection 22 of the lid 2 slides smoothly with the inner peripheral surface 12 a of the outer cylindrical portion 12 of the container body 1 directed downward.

In the closed state as shown in FIG. 8, the annular projection 22 of the lid 2 is in the annular gap 50 between the annular sealing surface 32 d of the annular sealing piece 32 and the inner peripheral surface 12 a of the outer cylindrical portion 12 of the container body 1. Is inserted like a whistle. When the lid 2 is closing, the annular projection 22 of the lid 2 gradually enters the annular groove from the portion closest to the hinges 14 and 20, and the hinge portion of the entire circumference of the annular projection 22 of the lid 2 The part farthest from 14, 20 finally enters the annular groove. FIG. 8 shows a portion farthest from the hinges 14 and 20. As shown in FIG. In the closed state, the outer peripheral surface 25 b of the tip 25 of the annular projection 22 of the lid 2 abuts on the inner peripheral surface 12 a of the outer cylindrical portion 12 of the container main body 1. Preferably, the outer peripheral surface 25 b of the tip portion 25 of the annular projection 22 of the lid 2 is in surface contact with the inner peripheral surface 12 a of the outer cylindrical portion 12 of the container main body 1. Further, the inner circumferential surface 25 a of the tip 25 of the annular projection 22 of the lid 2 abuts on the annular sealing surface 32 d of the annular seal piece 32. Preferably, the inner circumferential surface 25 a of the tip 25 of the annular projection 22 of the lid 2 is in surface contact with the annular sealing surface 32 d of the annular sealing piece 32.

The annular protrusion 22 of the lid 2 enters the annular gap 50 between the annular seal surface 32 d of the annular seal piece 32 and the inner peripheral surface 12 a of the outer cylindrical portion 12 of the container body 1 strongly, whereby the annular seal piece 32. Is pushed radially inward by the annular projection 22 of the lid 2 and also pushed downward. The annular seal piece 32 is slightly bent radially inward and downward with the proximal end portion of the annular seal piece 32 as a fulcrum by the pressing by the annular protrusion 22 of the lid 2. Since the annular seal piece 32 is made of hard resin, not rubber or elastomer, the annular seal piece 32 is not significantly deformed, and the amount of deflection of the annular seal piece 32 is small.

On the other hand, the tip 25 of the annular projection 22 of the lid 2 is pushed radially outward from the annular seal piece 32. The tip 25 of the annular projection 22 of the lid 2 receives a repulsive force from the annular seal piece 32. The tip of the annular projection 22 of the lid 2 is pushed radially outward by the repulsive force. The tip 25 of the annular projection 22 of the lid 2 is pressed against the inner peripheral surface 12 a of the outer cylindrical portion 12 of the container body 1. Since the annular seal piece 32 is made of hard resin, a large repulsive force is generated. The tip 25 of the annular projection 22 of the lid 2 is radially pinched by the annular seal piece 32 and the outer cylindrical portion 12 of the container body 1. The inner circumferential surface 25a of the tip 25 of the annular projection 22 of the lid 2 is in close contact with the annular sealing surface 32d of the annular seal piece 32, and the outer circumferential surface 25b of the tip 25 of the annular projection 22 of the lid 2 is the outer cylinder of the container body 1 It is in close contact with the inner circumferential surface 12 a of the portion 12. Therefore, between the annular seal surface 32 d of the annular seal piece 32 of the retaining ring 3 and the inner circumferential surface 25 a of the tip 25 of the annular projection 22 of the lid 2 and the outer circumferential surface of the tip 25 of the annular projection 22 of the lid 2 The inner container is sealed between the space 25 b and the inner circumferential surface 12 a of the outer cylindrical portion 12 of the container body 1 to ensure the airtightness of the storage portion.

9 to 13 show enlarged views of a portion on the hinges 14 and 20 side. This point is the point closest to the hinges 14 and 20. The lid 2 is closed from the state shown in FIG. 9 to the state shown in FIG. FIG. 13 shows the closed state. The annular projection 22 pivots about the hinges 14 and 20 as a fulcrum. At a location near the hinges 14 and 20, when the lid 2 is closed, the annular projection 22 moves from the upper side and the inner side in the radial direction to the lower side and the outer side in the radial direction. As shown in FIGS. 10 and 11, since the tapered surface 34 is formed on the upper end of the outer peripheral surface of the fitting portion 30 of the retaining ring 3, the upper end of the fitting portion 30 and the tip of the annular projection 22 Interference is avoided. Further, the base end portion of the annular seal piece 32 of the retaining ring 3 is positioned lower than the upper end portion of the fitting portion 30, and the annular seal piece 32 extends obliquely downward from the fitting portion 30 Thus, interference between the distal end of the annular projection 22 and the proximal end of the annular seal piece 32 is avoided. While the lid 2 is closing, as shown in FIG. 12, the tip of the annular projection 22 contacts the gently inclined surface 32 c of the upper surface of the annular seal piece 32. Then, the tip end portion of the annular projection 22 rides over the gently inclined surface 32c of the annular seal piece 32 while pressing the gently inclined surface 32c of the annular seal piece 32 downward, as shown in FIG. It enters into an annular gap 50 between the sealing surface 32 d and the outer cylindrical portion 12 of the container body 1.

As described above, when the lid is closed, the annular projection 22 of the lid 2 forcibly enters the annular gap 50 between the annular seal piece 32 of the retaining ring 3 and the outer cylindrical portion 12 of the container body 1. Airtightness of the container of the inner container is secured. The container body 1, the lid 2 and the retaining ring 3 are not made of soft resin such as rubber or elastomer but made of hard resin, and therefore the outer cylindrical portion 12 of the container body 1 and the annular projection 22 of the lid 2 and the retaining ring Even if the liquid cosmetic adheres to the annular seal piece 32 of 3, the annular projection 22 of the outer cylindrical portion 12 of the container main body 1, the annular projection 22 of the lid 2 and the annular seal piece 32 of the retaining ring 3 are unlikely to swell or deteriorate. . Therefore, the airtightness of the storage portion of the inner container is secured for a long time, and the drying and the weight loss of the liquid cosmetic impregnated in the holder 4 are suppressed.

In addition, an annular seal surface 32d which is reduced in diameter toward the upper side is formed at the tip of the annular seal piece 32 of the retaining ring 3, and the tip of the annular projection 22 of the lid 2 is formed on the annular seal surface 32d. Since the inner peripheral surface 25a of the surface 25 is in surface contact, high airtightness can be obtained between the annular seal piece 32 and the annular protrusion 22. Furthermore, since the outer peripheral surface 25b of the tip portion 25 of the annular projection 22 is in surface contact with the inner peripheral surface 12a of the outer cylindrical portion 12 of the container body 1, high airtightness is obtained between the annular projection 22 and the outer cylindrical portion 12. Be

Further, since the annular constricted portion 24 is formed in the middle of the annular protrusion 22, the tip portion 25 of the annular protrusion 22 can be easily deformed in the radial direction with the annular constricted portion 24 as a fulcrum. Therefore, in the closed state, the outer peripheral surface 25b of the tip 25 of the annular projection 22 easily adheres to the inner peripheral surface 12a of the outer cylindrical portion 12 of the container body 1, and the inner peripheral surface 25a of the tip 25 of the annular projection 22 is It easily adheres to the annular seal surface 32 d of the annular seal piece 32. Therefore, the airtightness of the storage portion of the inner container can be further improved.

In the closed state, the annular projection 22 is sandwiched between the outer cylindrical portion 12 of the container body 1 and the annular seal piece 32, and an upward force is exerted on the annular projection 22 from the container body 1 and the annular seal piece 32. . In particular, when the repulsive force of the annular seal piece 32 is large, the upward force acting on the annular protrusion 22 is also large, and the annular protrusion 22 is easily displaced upward. That is, the lid 2 is easily displaced in the opening direction. Therefore, as shown in FIG. 14, on the upper part of the inner peripheral surface 12 a of the outer cylindrical portion 12 of the container main body 1, the annular engaging convex portion 17 engaged with the annular engaging concave portion 26 of the outer peripheral surface 22 b You may form. As shown in FIG. 15, the engagement convex portion 17 of the outer cylindrical portion 12 of the container main body 1 is engaged with the engagement concave portion 26 of the annular projection 22 in the closed state, whereby the closing condition of the lid 2 is further assured As a result, floating of the annular projection 22 upward can be reliably prevented, and airtightness can be more reliably maintained.

In the present embodiment, although the annular seal surface 32d of the annular seal piece 32 is a tapered surface in which the diameter is reduced toward the upper side at a constant taper angle, the annular seal surface 32d of the annular seal piece 32 is along the vertical direction. It may be a curved surface that is curved outward in the radial direction. In the closed state, the inner circumferential surface 25a of the tip portion 25 of the annular projection 22 may be in line contact with the annular sealing surface 32d.

The annular constriction portion 24 is formed by forming the annular recess 23 on the outer peripheral surface 22b of the annular projection 22. However, the annular constriction portion 24 is formed by forming the annular recess in the inner peripheral surface 22a of the annular projection 22 It may be Further, the annular constricted portion 24 may be formed by forming an annular recess in the outer peripheral surface 22 b and the inner peripheral surface 22 a of the annular protrusion 22.

Moreover, in the said embodiment, although the cosmetics container was an inner container in the container of double structure provided with the outer container and the inner container, it is simply provided with the container main body 1 and the lid 2 without providing the outer container. It may be a container.

Reference Signs List 1 container body 2 lid 3 retaining ring 4 holder 10 bottom surface 11 side surface portion 12 outer cylinder portion 12a inner circumferential surface 12b chamfered portion 13 flange portion 14 hinge portion 15 connection portion 16 engagement recess portion 17 engagement protrusion portion 20 hinge portion 21 puff housing recess 22 annular projection 22a inner circumferential surface 22b outer circumferential surface 23 annular recess 24 annular constricted portion 25 tip 25a inner circumferential surface 25b outer circumferential surface 26 engagement recess 30 fitting portion 31 annular ridge 32 annular seal piece 32a lower surface 32b Steeply inclined surface 32c Loosely inclined surface 32d Annular seal surface 33 Engaging projection 34 Tapered surface 35 Positioning projection 50 Annular gap

Claims (6)

A container body made of hard resin having a circular opening, a lid made of hard resin hingedly connected to the container body, a support body accommodated in the container body and impregnated with the liquid cosmetic, and the support body A cosmetic resin package comprising a hard resin retaining ring mounted on the opening edge of the container body to prevent the container body from coming off,
The container main body includes a bottom surface, a side surface extending upward from the peripheral edge of the bottom surface, and an outer cylinder located outside the side surface via an annular groove.
An annular projection is integrally formed on the lower surface of the lid,
The retaining ring is a cylindrical fitting portion that fits on the upper outer peripheral surface of the side portion of the container body, and extends radially inward from the upper end portion of the fitting portion to cover the peripheral portion of the opening of the container body An annular collar portion and an annular seal piece extending radially outward from the fitting portion;
In the closed state, the annular projection is fitted into the annular gap between the tip of the annular seal piece of the retaining ring and the outer cylindrical portion of the container main body, and the inner peripheral surface of the outer cylindrical portion of the container main body A cosmetic packaging body characterized in that the cosmetic packaging body abuts on a tip of an annular seal piece of a retaining ring. The cosmetic packaging body according to claim 1, wherein the annular seal piece obliquely extends downward from the fitting portion. The cosmetic package according to claim 1 or 2, wherein the base end of the annular seal piece is positioned lower than the upper end of the fitting portion by a predetermined distance. The cosmetic package according to claim 3, wherein a tapered surface continuous with the upper surface of the annular seal piece is formed at the upper end of the outer peripheral surface of the fitting portion of the retaining ring while expanding in diameter downward. The cosmetic package according to any one of claims 1 to 4, wherein an annular constriction portion which is locally thin is formed at an intermediate portion between the tip end portion and the base end portion of the annular protrusion. A container body made of hard resin for containing a carrier impregnated with liquid cosmetic and having a circular opening, a lid made of hard resin hinged to the container body, and a container of the carrier A cosmetic container comprising a hard resin retaining ring mounted on the opening edge of the container body to prevent the body from coming off, comprising:
The container main body includes a bottom surface, a side surface extending upward from the peripheral edge of the bottom surface, and an outer cylinder located outside the side surface via an annular groove.
An annular projection is integrally formed on the lower surface of the lid,
The retaining ring is a cylindrical fitting portion that fits on the upper outer peripheral surface of the side portion of the container body, and extends radially inward from the upper end portion of the fitting portion to cover the peripheral portion of the opening of the container body An annular collar portion and an annular seal piece extending radially outward from the fitting portion;
In the closed state, the annular projection is fitted into the annular gap between the tip of the annular seal piece of the retaining ring and the outer cylindrical portion of the container main body, and the inner peripheral surface of the outer cylindrical portion of the container main body A cosmetic container characterized in that it abuts on a tip of an annular seal piece of a retaining ring.

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