JP2000189238A - Cosmetic container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To completely inhibit moisture and volatile components contained in a cosmetic from being vaporized, dew-condensed, turned to waterdrops and dropped on the cosmetic. SOLUTION: This cosmetic container A is composed of a container main body A1 and a lid body A2 for tightly sealing the container main body A1 through packing 29. Then, a partition plate 10 is attached to the peak wall inner surface of the lid body A2 so as to form a space part 5 with a peak wall 11, the partition plate 10 is composed of a center flat plate part 21 where a ventilation hole 20 is pierced and a liquid holding part 22 formed on the periphery by providing a level difference and the ventilation hole 20 is provided with a fine hole part for not passing through liquid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic container in which a cosmetic containing a compact, especially containing water and volatile components, is hermetically sealed.

[0002]

2. Description of the Related Art Recent cosmetics contain a large amount of water and volatile components, and vaporized water such as volatile water and volatile components is condensed on the lid of a compact container to form water droplets. May fall on the material and form spots. To prevent this, the lid of a compact container as described in JP-A-10-290714 is composed of an exterior plate and an interior plate, and a dew condensation space is provided between the exterior plate and the interior plate, 2. Description of the Related Art There has been proposed a compact container for preventing condensation and dripping, in which a ventilation hole for communicating a dew condensation space with a space in a container body is provided in an interior plate.

In the above-mentioned compact container, dew condensation of the vaporized gas is performed on the inner surface of the exterior plate and the upper and lower surfaces of the interior plate, and the amount of the vaporized gas condensed on the lower surface of the interior plate is kept low. In this case, the dripping of dew is prevented by preventing the drop of water droplets resulting from the dew condensation in the above.

[0004]

However, in the above-mentioned container, since the interior plate is a flat plate, the opening of the vent hole is made small, and even if the structure is such that water droplets are difficult to fall, the dew condensation liquid remains on the interior plate. If a large amount of water accumulates, it may fall from the vent. In addition, even if a bank is provided around the vent hole, if the hole of the vent hole is large, water drops falling from the condensation on the lower surface of the exterior plate may fall on the vent hole and fall on the cosmetic from the vent hole. . Further, although an embodiment in which a ventilation passage is formed around the interior plate is also described, in this case, there is a problem that water drops fall from the periphery of the interior plate.

An object of the present invention is to solve the above-mentioned problems, and to completely prevent water and volatile components contained in cosmetics from evaporating and condensing and falling as water droplets onto the cosmetics. It is an object of the present invention to provide a cosmetic container that can be eliminated.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a cosmetic container comprising, as a cosmetic container, a container body, and a lid body which seals the container body via packing. A container, on the inner surface of the top wall of the lid, a partition plate is attached so as to form a space between the top wall,
The partition plate is composed of a central flat plate portion with a vent hole, and a liquid holding portion formed with a step around the central plate portion, and the vent hole has a pore portion that does not allow liquid to pass therethrough. Is adopted.

In another embodiment in which the lid is changed,
A cosmetic container comprising a container main body and a lid configured to seal the container main body via a packing, wherein a space is formed between the top wall and an inner surface of a top wall of the lid. The partition plate is attached, the partition plate is a spherical dome shape with the center raised, and the liquid holding part formed on the center part with the vent hole and the periphery around it has the same spherical surface. Is adopted so as to be continuously formed.

Further, in order to hold the dropped liquid on the partition plate, a configuration is adopted in which an uneven surface is formed on at least a part of the upper surface of the partition plate.

[0009]

Next, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the cosmetic container A includes a container body A1 and a lid A2 attached to the container body A1 so as to be openable and closable, and is formed of a hard synthetic resin.

As shown in FIGS. 1, 2 and 3, the container body A1
Is provided with a bottom wall 1 and a side peripheral wall 2, and an engagement cylinder 3 whose diameter is expanded outside the side peripheral wall 2 is connected to an upper portion of the side peripheral wall 2 via a flange 4. Between the outer periphery of the upper end edge 2a of the side peripheral wall 2 and the inner periphery of the engagement cylinder 3, a packing receiving ring 6 having a step 5 formed on the outer periphery made of a soft synthetic resin is inserted. A bulging ring 7 is formed on the outer periphery of the upper end edge of the cylinder 3. A pair of hinge support pieces 8a and 8b project from predetermined positions of the engagement cylinder 3, and a hinge pin 9 extends between the support pieces 8a and 8b.

The cover A2 has a top wall 11 on which a partition plate 10 is mounted and a side peripheral wall 12 on the inner surface side, and an engagement ring 13 is vertically provided on the lower surface of the top wall 11. A lower inner periphery of the side peripheral wall 12 is enlarged so as to fit into the bulging ring 7 of the engaging cylinder 3 of the container body A1, and a lower end inner periphery is fitted with a lower surface of the bulging ring 7. A ridge 14 is provided. Side wall 12
A mounting piece 15 is projected from the outer circumference of the engaging cylinder 3 at a position corresponding to the hinge supporting pieces 8a, 8b. A fork 17 having a bearing portion 16 to be fitted is formed.

As shown in FIG. 4, the partition plate 10 has a flat plate portion 21 in the center where a vent hole 20 is formed, and a liquid holding portion 22 having a step between the flat plate portion 21 around the central portion. A mounting ring 23 is provided upright on the periphery of the liquid holding part 22. The upper surface of the flat plate portion 21 has a ventilation hole 2
A concave / convex surface 25 is formed by minute concave / convex portions engraved except for the peripheral portion 24 of the zero.

In the figure, the uneven surface 25 is formed around the flat plate portion 21. However, the uneven surface 25 may be formed in the liquid holding portion 22, and the uneven portion 25 may be formed in the peripheral portion 24 of the ventilation hole 20. May be provided, or the range in the radial direction may be narrowed. Further, the circumferential range is also provided in all directions, but may be provided partially for each fixed angle.

A packing press 26 extending in a flange shape is provided continuously outside the mounting ring 23 following the partition plate 10. The outer periphery of the mounting ring 23 is pressed against the inner periphery of the engaging ring 13 of the top wall 11, and the upper end of the mounting ring 23 is attached to the lower surface of the top wall 11 via an ultrasonic rib, and the top wall 11 and the partition plate 10 The space S is formed by the above.

As shown in FIG. 4, the ventilation holes 20 are arranged at regular intervals in the flat plate portion 21, and the vertical cross section thereof is a cylindrical pore or as shown in FIG. In addition, a funnel-shaped ventilation hole 20a having a narrowed lower end as a small hole 27, or a throttle valve-type ventilation hole 20b having a small hole 27 at the lower end and an enlarged diameter portion 28 at the upper end as shown in FIG. The pores are such that gas can pass freely but liquid cannot pass due to the surface tension.

The diameter of the pores 27 is set through calculations and experiments based on the contents of water and volatile components. A simple drop test was performed by using alcohol, which is one of the volatile components contained in the cosmetic, as the liquid, and narrowing the pore diameter in order of 3 mm, 2 mm, and 1 mm. As a result, it falls at 3 mm,
In the case of 2 mm, it may fall depending on the case, but in many cases it does not fall. At 1 mm, it did not drop completely.
Alcohol, in the liquid of various volatile components used in cosmetics, has a relatively small surface tension and specific cohesive force. Will not fall.

When the amount of water is further increased, the condensate does not pass even if the diameter of the pores increases. That is, water has higher surface tension and specific cohesive force than alcohol,
The surface tension when the surface is in contact with air at a degree C is about 3.
Since it is three times and the specific cohesive force is about 2.6 times, if the water content increases, the diameter of the pores 27 can be increased accordingly. Therefore, if the diameter of the pores 27 is 2 mm or less, the condensate does not pass through no matter how the content of water and volatile components contained in the cosmetic changes.

As shown in FIGS. 2 and 3, a packing 29 is mounted along the outer periphery of the engagement ring 13 and the inner periphery of the side peripheral wall 12 from the upper end to the inner periphery. And a vertical portion 31 are formed in an inverted L-shaped cross section, and are formed of an elastomer. The horizontal part 30 of the packing 29 is
6, the lower end 31a of the vertical portion 31 is inclined inward so as to engage and press the outer periphery of the upper end of the packing receiving ring 6 and the step portion 5.

Next, the mode of use and operation and effect of the container of the present invention will be described. The cosmetic containing water, volatile components and the like is stored in the container body A1, and the lid A2 is closed. that time,
The fitting ridge 14 on the side peripheral wall 12 of the cover A2 is
Is engaged with the lower side of the bulging ring 7 of the engaging cylinder 3 to fit the cover A2 to the container body A1 and the lower end 31a of the packing 29 of the cover A2 The inside of the container is sealed by pressing against the surface and the step portion 5.

As time elapses and the temperature inside the container rises with the rise in outside air temperature, the moisture and volatile components in the cosmetic evaporate and fill the sealed container body.
When the temperature drops, the evaporating gas becomes supersaturated, and comes into contact with the outside air to form dew on the lid where the temperature drops sharply.

At this time, the condensed water and volatile components fall into the form of a liquid and fall on the partition plate 10. However, since the air holes 20 do not allow the liquid to pass through, the liquid that has condensed and falls first has irregularities. When the liquid is held on the surface 25 and the amount increases, the liquid in the peripheral part moves to the liquid holding part 22 sequentially, and thereafter the liquid in the center moves. Thus, the liquid that has fallen on the partition plate 10 moves to the liquid holding part 22 and is retained and held in the liquid holding part 22, so that the liquid does not fall onto the cosmetic through the vent hole 20.

When the temperature rises again, the inside of the container becomes dry and water and volatile components evaporate. However, since the container is sealed, the liquid that has condensed first evaporates. The saturated state is maintained, and excessive evaporation of water and volatiles from the cosmetic can be suppressed.

Next, a second embodiment of the present invention will be described with reference to the drawings. In the present embodiment, the partition plate in the previous embodiment is formed in a dome shape. The following mainly describes the differences from the first embodiment. As shown in FIG.
The cosmetic container Aa has the same container body A as that of the above embodiment.
1 and a lid A2. The partition plate 40 attached to the cover A2 has a mounting ring 41 and a packing presser 42 as in the previous embodiment.

The partition plate 40 is formed in a spherical dome shape with a raised center, and a central portion 44 having a vent hole 43 and a liquid holding portion 45 formed around the central portion 44 have the same spherical shape. It is formed so as to be continuous above. As shown in FIG. 7, a central portion 44 of the partition plate 40 is provided with an uneven surface 4 by fine unevenness engraved except for a peripheral portion 46 of the ventilation hole 43.
7 are formed. The formation range of the uneven surface 47 is the first
The embodiment is not limited to the illustrated one, as in the embodiment. The shape of the vent hole 43 is preferably the same as that of the first embodiment, but the pore portion may be slightly larger.

Next, the operation and effect of this embodiment will be described. The liquid that has condensed and falls on the partition plate 40 is first held on the uneven surface 47 of the partition plate 40. When the amount increases, the partition plate 40 has a dome shape and the uneven surface 47 is engraved, so that the dropped liquid flows from the central portion 44 to the periphery and is retained and held in the liquid holding portion 45, The same operation and effect as those of the first embodiment are provided. Further, since the liquid does not stay in the central portion 44 of the partition plate 40, restrictions on the size and shape of the ventilation hole 43 can be further relaxed.

In each of the above embodiments, the lid is attached to the container body by a hinge, but it may be a cover or a screw-type cap fitted to the mouth of the container body.
Also, the top wall of the lid may be dome-shaped, in which case the liquid condensed on the inner surface of the top wall moves by capillary action and accumulates in the liquid holding portion.

The cosmetic container of the present invention can be used as a single cosmetic container, but can also be used as a replacement cosmetic container to be put in a compact case.

[0028]

Since the present invention is configured as described above, it has the following effects. Since a partition plate with a vent hole is attached to the inner surface of the top wall of the lid to prevent liquid from falling from the vent hole, moisture condensed on the back surface of the top wall of the lid,
It has become possible to completely prevent a liquid such as a volatile component from dropping on the upper surface of the cosmetic.

[Brief description of the drawings]

FIG. 1 is a sectional front view of a cosmetic container according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional front view of a state where a lid is opened.

FIG. 3 is a plan view showing a state where a lid is opened.

FIG. 4 is a top view of a partition plate.

FIGS. 5A and 5B are explanatory diagrams of a vent hole, and FIGS. 5A and 5B are diagrams showing two examples of shapes; FIGS.

FIG. 6 is a sectional front view of a cosmetic container according to a second embodiment of the present invention.

FIG. 7 is a top view of a partition plate.

[Explanation of symbols]

 A, Aa, Ab Cosmetic container A1 Container main body A2 Lid S Space part 1 Bottom wall 2 Side peripheral wall 3 Engagement cylinder 6 Packing receiving ring 10, 40 Partition plate 11 Top wall 12 Side peripheral wall 20, 43 Vent 21 Flat plate part 44 Central part 22, 45 Liquid holding part 23, 41 Mounting ring 25, 47 Uneven surface 26, 42 Packing retainer 27 Pores 29 Packing 30 Horizontal part 31 Vertical part 31a Lower end

Claims (3)

[Claims] 1. A cosmetic container comprising: a container body; and a lid configured to seal the container body via a packing, wherein a space is provided between the top wall and an inner surface of the top wall of the lid. A partition plate is attached so as to form a portion, and the partition plate is composed of a central flat plate portion having a vent hole and a liquid holding portion formed by providing a step around the central plate portion. Is a cosmetic container having a pore portion that does not allow a liquid to pass therethrough. 2. A cosmetic container comprising: a container body; and a lid configured to seal the container body via a packing, wherein a space between the top wall and the top wall is provided on an inner surface of the top wall of the lid. A partition plate is attached so as to form a portion, and the partition plate is a spherical dome shape with a raised center, and a liquid holding portion formed around a central portion having a vent hole and a periphery thereof. Are formed so as to be continuous on the same spherical surface. 3. The cosmetic container according to claim 1, wherein an uneven surface is formed on at least a part of the upper surface of the partition plate.