JPH08242940A - Rod-shaped cosmetic feeding vessel - Google Patents

Abstract

PURPOSE: To provide a rod-shaped cosmetics feeding vessel of a simple structure and having airtightness by putting a slope on the inner surface of a cap and a ring-shaped bulge ridge in tight contact with a guide slope on the external surface of a skirt, a ring-shaped ridge, and a sealing surface, and putting a detaining ridge on the internal circumferential surface of the bottom of the skirt and the sealing surface and an overhung sealing surface in tight contact with a ring-shaped ridge and a groove in the bottom lid equipped with a hole. CONSTITUTION: A slope 12 and a ring-shaped ridge 13 are provided on the peripheral surface of a cylindrical part 11 of a skirt 1, and below it, a sealing surface 14 is formed, and at its foremost, a guide surface 15 is furnished. A slope 50 to be loosely fitted to the guide surface 15 is furnished on the inner surface of a cap, and at its termination, a ring-shaped bulged ridge 52 is formed which strides over the ridge 13 to come into tight contact with the sealing surface 14. A ring-shaped recess 51 is provided having a depth to generate a loose fit on the ridge 13 from the upper root of the bulged ridge 52. A ring-shaped ridge 41 provided on a holed bottom lid 4 equipped with a hole strides a detaining ridge 16, and the external surface 410 comes into tight contact with a sealing surface 17 on the skirt 1 while the upper surface 411 is seated on an overhung sealing surface 18. Accordingly, a seal is formed by the cap and the holed bottom lid 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispensing container for stick-shaped cosmetics represented by lipstick.

[0002]

2. Description of the Related Art Many stick-shaped solid cosmetics such as lipsticks and eye shadows contain volatile components. However, conventional containers of this type have poor airtightness, so the volatile components disappear and dry or shrink. There was a problem that it would crack and could not be used properly. As a countermeasure against this, the actual Kaihei 1-1187
In Japanese Patent No. 13 and the like, it is proposed to attach a ring-shaped elastic member made of rubber or the like to the upper edge portion of the hakama and contacting the inner side of the lower edge of the cap. However, this prior art uses a special part called a ring-shaped elastic member, and it has to be fitted when assembling the container, which increases the cost, and if dust or the like adheres to the ring-shaped elastic member when it is used. However, there has been a problem that the ring-shaped elastic member is easily damaged or the airtightness is extremely lowered.

[0003]

SUMMARY OF THE INVENTION The present invention has been invented to solve the above-mentioned problems, and its purpose is to provide a proper structure with a simple structure without increasing the number of parts. An object is to provide a stick-shaped cosmetic product dispensing container that can be realized.

[0004]

In order to achieve the above-mentioned object, the present invention provides a skirt body having a cylindrical portion in the upper region through a stepped portion, and an internal thread groove formed therein, and a skirt body penetrating the skirt body. Made of metal that has an outer diameter to be inserted and a length dimension larger than the hakama body, forms an annular locking part that projects inwardly near the lower end, and forms a vertical groove for guide above the annular locking part. A middle cylinder, and a middle part slidably fitted in the middle cylinder, having a fitting part for the stick-shaped cosmetic material in the upper half part, forming a compressible slit at a 180-degree symmetrical position from the lower end to a required position, and An inner plate having a protrusion on the outer periphery of the lower end portion that protrudes from the guide vertical groove of the middle cylinder and can enter the female screw groove, and is fitted to the lower end portion of the skirt body 1, and has the annular engagement member on the upper portion. A bottom cover having a hole having an engaging groove that fits with the stopper, and a cap that is removably fitted in the cylindrical portion of the skirt body. It is obtained by employing the following configuration in concrete. On the outer surface of the cylindrical part of the hakama, a guiding slope is formed from the tip to a predetermined position, and a ring-shaped ridge with a gentle curvature is formed at the predetermined position, and further, it is loosened from the foot of the ring-shaped ridge. A graded sealing surface is formed,
The inner surface of the cap has a sloping surface that loosely fits in the base region of the cylindrical portion from the tip to a required position, and at the end position of this sloping surface, after passing over the ring-shaped ridge, it is brought into close contact with the sealing surface. A mountain-shaped annular raised ridge and a ring-shaped recessed surface which is continuous with the annular raised ridge and is loosely engaged with the ring-shaped raised ridge are formed, and within a predetermined position from the lower end of the hakama. A locking ridge is provided on the peripheral surface, and a sealing surface with a diameter smaller than the diameter from the lower end of the skirt to the locking ridge is provided at a position deeper than the locking ridge and orthogonal to this. An annular protrusion having an upper surface and an outer surface which can come into close contact with the sealing surface and the protruding sealing surface after the locking protrusion is passed below the engaging groove on the perforated bottom lid. And a groove that follows the annular projection. Preferably, at least the skirt body 1 and the cap 5, as well as these and the perforated bottom lid 4, are made of a soft synthetic resin having a Rockwell hardness of R90 to 110.

[0005]

In the present invention, the perforated bottom cover 4 and the skirt body 1 are composed of the soft upper surface 411 having a Rockwell hardness of R90 to 110, the overhanging sealing surface 18, and the outer surface 410 and the sealing surface 17 which are tight surfaces. The contact results in a completely airtight seal. Further, when the cap 5 is attached to the skirt body 1, the ring-shaped recessed portion 51 is loosely engaged with the ring-shaped ridge 13, and a soft annular raised ridge 52 having a Rockwell hardness of 100 to 105 and a gentle slope seal. Only the working surface 14 is in full surface contact. Therefore, the cap 5 and the skirt body 1 are also hermetically sealed. Therefore,
As a result, it is possible to reliably prevent the evaporation of volatile components of the cosmetic material without using any elastic sealing material, and it is possible to maintain good quality for a long period of time.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show an embodiment of a stick-shaped cosmetic product dispensing container according to the present invention, and FIGS. 3 to 5 show a part of it in an enlarged scale. Reference numeral 1 denotes a hull body, and 2 denotes a middle tube which is penetrated into the hull body 1, and is made of metal, for example, aluminum, and is provided with a vapor deposition film of a desired color. Reference numeral 3 is a long cylindrical inner tray slidably fitted in the middle cylinder 2, 4 is a perforated bottom lid fixedly fitted in the lower part of the hull body 1, and 5 is removable from the hull body 1. A cap 6 is fitted as much as possible, and a bottom sealing piece 6 is attached to the bottom surface of the perforated bottom lid 4.

The skirt body 1, the perforated bottom cover 4 and the cap are preferably made of synthetic resin, and preferably have Rockwell hardness of R90 to.
It is composed of 110 synthetic resins. If the hardness exceeds Rockwell hardness R110, it is difficult to elastically deform and the airtight seal cannot be achieved by the close surface contact, which is not possible. However, if the Rockwell hardness is less than R90, the precision of the dimensions and the shape becomes difficult to obtain, and it is too soft and difficult to assemble or fit, which is not preferable. Typical resins include polyester and polyethylene. The skirt body 1 has a tubular shape as a whole, and a cylindrical portion 11 having an outer diameter smaller than that of the main portion is formed near an upper portion through a step portion 10. As shown in FIG. A guide surface 19 is formed from the lower end to a required position, and a locking projection 16 having a cross-sectional shape in which a saw tooth has a curvature is formed at the end of the guide surface 19.
Is formed in a ring shape. Further, above the locking projection 16, that is, on the inner side of the skirt body, a linear sealing surface 17 having a diameter slightly smaller than that of the guiding surface 19 and an overhang projecting to the inner diameter side so as to be orthogonal to this. Sealing surface (step)
18 is formed.

A hole having the same diameter from the tip of the overhanging sealing surface 18 to the tip of the cylindrical portion 11 is formed.
A female thread groove 100 is formed on the inner peripheral surface 101 of the hole between the portion below the step portion 10 and above the projecting sealing surface 18. Then, as shown in FIG. 3, the outer peripheral surface of the cylindrical portion 11 is formed with a guiding gradient surface 12 from the upper end to a predetermined position, and at the end position of the guiding gradient surface 12, a gentle curvature is formed into a mountain shape. Ring-shaped protrusion 13
Further, a gentle sloped sealing surface 14 is formed below the bottom end of the ring-shaped protrusion 13 and extends from the end of the sealing surface 14 to the step 10. A guide surface 15 having a larger diameter than the sealing surface 14 is formed via a steep slope.

The middle cylinder 2 has an outer diameter capable of abutting on the inner peripheral surface 101 of the skirt body 1 and a dimension longer than the skirt body 1, and near the lower end thereof, as shown in FIG. Protruding annular locking portion 21
Is formed, and the guide vertical groove 2 is formed in a region from a region separated from the annular locking portion 21 by an appropriate distance to an intermediate region.
0 is formed. The inner plate 3 is composed of a straight tubular body as a whole, and a fitting portion 30 for holding the cosmetic material A is formed on the inner surface at a required position from the upper end. And
A pair of collapsible slits 31, 31 are formed symmetrically from the lower end to a required position by 180 degrees, and the collapsible slit 3 is formed.
A protrusion 32 that radially protrudes is formed at the lower end portion that is displaced by 90 degrees in the circumferential direction from 1, 31. The number of the protrusions 32 is one in this embodiment, but may be 18 in some cases.
There may be another 0-degree symmetrical position, and in this case, two guide vertical grooves 20 may be provided at symmetrical positions.

As shown in FIG. 4, the perforated bottom cover 4 has a through hole 400 having a diameter that matches the inner diameter of the inner tray 3, and the outer periphery near the tip of the bottom cover 4 can be fitted closely to the inner peripheral surface of the inner cylinder 2. A portion 43 is provided, and an engaging groove 40 that fits with the annular locking portion 21 of the middle cylinder 2 is provided on the outer periphery of a portion lower than the portion 43. Further, below the engagement groove 40, annular projections 41 and 44 are formed vertically with the annular concave groove 42 interposed therebetween. The upper annular projection 41 has an outer surface 410 having a diameter that can overcome the locking projection 16 due to elastic deformation of the hakama 1 and itself generated during pushing, and that is in close contact with the sealing surface 17 of the hakama 1, It has an upper surface 411 that is seated and in close contact with the overhang sealing surface 18 when pushed. The lower ridge 44 has a surface 440 of the same diameter as the sealing surface 17, and the surface 440 of the same diameter.
Since the guide surface 19 has a larger diameter than the sealing surface 17, the guide surface 19 is loosely fitted to the guide surface 19 with a minute gap.

The outer surface of the cap 5 is straight, and the inner surface of the cap 5 has a sloping surface 50 which is loosely fitted to the guide surface 15 having a large diameter in the region from the tip to the required position as shown in FIG. Further, at the end position of the sloped surface 50, an annular raised ridge 52 which has a mountain shape so as to get over the ring-shaped ridge 13 and then come into close contact with the gentle sloped sealing surface 14.
And a ring-shaped recessed portion 51 having a shape and a depth that allows continuous engagement with the ring-shaped protrusion 13 from the upper foot of the annular raised protrusion 52.

The bottom seal piece 6 is made of laminated paper or synthetic resin film having good water resistance, and is attached to the perforated bottom lid 4 with an adhesive to hermetically seal the through hole 400. In the other figures, 7 is a capsule that is fitted on the upper end of the middle cylinder 2 when filling the cosmetic.

Since the present invention is constructed as described above,
If the inner plate 3 is pushed into the middle cylinder 2, the compressible slits 31, 31
As a result, the diameter of the inner plate 3 is reduced, and the protrusion 32 is projected from the vertical groove 20 for guide when the inner plate 3 is instantly restored when it is fitted into the inner cylinder 2. With this, the inner plate 3 and the inner cylinder 2 are assembled. When assembling the container, if the assembly is rotated while being inserted from the lower portion of the skirt body 1, the protrusion 32 is screwed into the female thread groove 100 of the skirt body 1. When the perforated bottom cover 4 is pushed in from below the skirt body 1 in this state, the fitting portion 43 elastically deforms the annular locking portion 21 of the middle cylinder 2 and passes through it, and at this moment, the engaging groove 40 is inserted into the engaging groove 40. The annular locking portion 21 fits with the snap. Thereby, the perforated bottom cover 4 and the middle cylinder 2 are connected in series. At this time, the outer surface 410 of the upper ridge 41 at the lower side is the ridge 1 for locking the skirt body 1.
The gently slanted surface of No. 6 is slidably contacted, and the outer surface 410 is hermetically in close contact with the sealing surface 17 in order to restore the original diameter at the moment when the top is passed, and the upper surface 411 is overhanging the sealing surface 1.
Close to 8. Since the locking projection 16 is serrated, the projection 41 can no longer move downward. Therefore, the perforated bottom lid 4 and the skirt body 1 are completely hermetically sealed by the close surface contact between the soft upper surface 411 having a Rockwell hardness of 100 to 105, the overhanging sealing surface 18, and the outer surface 410 and the sealing surface 17. It becomes a state.

After the above-mentioned assembly is completed, to fill the cosmetic A, the capsule 7 is fitted to the upper end of the middle cylinder 2 and the perforated bottom cover 4 is inserted.
It is only necessary to insert the nozzle from the through hole 400 of
After the cosmetic is solidified, the bottom seal piece 6 is attached to the perforated bottom lid 4 while appropriately injecting an inert gas or the like, so that the cosmetic A is sealed in an airtight state. Then, when the cap 5 is inserted into the skirt body 1, as shown in FIG. 5A, the sloped surface 50 is loosely engaged with the guide surface 15 and then the annular raised ridge 52 is inserted into the ring-shaped ridge 1.
3 is slidably contacted with the elastic member 3 and elastically deforms in the outer diameter direction, and the annular protruding ridge
Is restored at the moment when it passes the top of the ring-shaped protrusion 13,
As shown in (b), the annular raised ridge 52 makes a tight surface contact with the gently-sloping sealing surface 14, and the ring-shaped recessed portion 51 following the annular raised ridge 52 starts to play with the ring-shaped ridge 13. Therefore, the close contact between the annular raised ridge 52 and the gently sloping sealing surface 14 is maintained, and when the tip of the cap 5 abuts on the step portion 10 as shown in FIG. Play with and have a Rockwell hardness of 100-1
05 soft annular raised ridge 52 and gentle sloped sealing surface 1
Only 4 is in full surface contact. Therefore, the cap 5 and the skirt body 1 are also hermetically sealed. From the above,
The volatile components of cosmetic A do not evaporate, and good quality and normality are maintained until use.

When using the cosmetic A, remove the cap 5,
It is sufficient to rotate the hakama 1 so that the protrusion 32 of the inner plate 3
Rises along the female screw groove 100 of the hakama 1 so that the cosmetic A is delivered. After use, put cap 5 on skirt 1
If it is inserted in the above, the annular raised ridge 52 and the gently-sloping sealing surface 14 come into surface contact with each other as described above, and the airtight sealing is performed again. Therefore, the volatile components of the cosmetic material A do not evaporate and cracks due to drying do not occur.

[0016]

According to the first aspect of the present invention described above, a perfect airtight seal can be achieved with the minimum necessary number of parts without using the elastic seal material, and the cost is also reduced because the elastic seal material is not used. It has excellent effects such as being cheap and easy to assemble. According to the second aspect, since the cap 5 and the skirt body 1 have an appropriate degree of flexibility, an excellent effect that a better seal can be achieved can be obtained.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of a stick-shaped cosmetic product dispensing container according to the present invention.

FIG. 2 is a partially cutaway exploded perspective view of the same.

FIG. 3 is a partially enlarged view of FIG. 1;

FIG. 4 is a partially enlarged view of the same.

FIG. 5 is an enlarged cross-sectional view showing a state in stages when the cap and the hakama are inserted.

[Explanation of symbols]

 1 Hakama 2 Middle Cylinder 3 Middle Plate 4 Perforated Bottom Lid 5 Cap 6 Bottom Sealing Piece 10 Step Part 11 Cylindrical Part 12 Guidance Gradient Surface 13 Ring-shaped Protrusion 14 Sealing Surface 16 Locking Protrusion 17 Sealing Surface 18 Surface for Overhanging Seal 20 Vertical Groove for Guide 21 Annular Locking Part 30 Fitting Part 31 Compressible Slit 32 Protrusion 40 Engaging Groove 41 Projection 42 Groove 50 Gradient Surface 51 Ring Recessed Surface 52 Annular Ridge Projection

Claims (2)

[Claims] 1. A skirt body 1 having a cylindrical portion 11 provided in an upper region through a step portion 10 and having an internal thread groove 100 formed on an inner periphery thereof, and an outer diameter and a skirt body 1 which penetrate into the skirt body 1. An annular locking portion 21 having a large length and projecting inwardly near the lower end is formed, and the guide vertical groove 2 is formed above the annular locking portion 21.
0 is formed of a metal middle cylinder 2, and the middle cylinder 2 is slidably fitted in the middle cylinder 2 and has a fitting portion 30 for the stick-shaped cosmetic material A in the upper half portion.
Inner tray 3 having compressible slits 31, 31 formed at 80-degree symmetrical positions and provided with a protrusion 32 protruding from the vertical groove 20 for guiding of the inner cylinder 2 and capable of entering the female screw groove 100 on the outer periphery of the lower end portion. And a perforated bottom cover 4 fitted to the lower end portion of the skirt body 1 and having an engagement groove 40 fitted to the annular locking portion 21 on the upper side portion, and the cylindrical portion 11 of the skirt body 1. Cap 5 that can be inserted and removed
The outer surface of the cylindrical portion 11 of the skirt body 1 is provided with a guide slope 12 from the tip to a predetermined position, and a ring-shaped ridge 13 having a gentle curvature is formed at the predetermined position. A gently sloping sealing surface 14 is formed from the foot of the ring-shaped ridge 13, and the inner surface of the cap 5 has a sloping surface 50 that loosely fits in the root region of the cylindrical portion 11 from the tip to the required position. Surface 5
At the end position of 0, the mountain-shaped annular protruding ridge 52 which is passed over the ring-shaped protruding ridge 13 and is brought into close contact with the sealing surface 14 and the ring-shaped protruding ridge 52 which is continuous with the annular protruding ridge 52. 13 and a ring-shaped recessed surface 51 that is loosely fitted to the housing 13. A locking projection 16 is provided on the inner peripheral surface at a predetermined position from the lower end of the skirt body 1, Hakama 1 in the back
A sealing surface 17 having a diameter smaller than the diameter from the lower end of the locking projection 16 to the locking projection 16 and an overhanging sealing surface 18 orthogonal to the sealing surface 17 are provided. An annular ridge 41 having an upper surface 411 and an outer surface 410 that can come into close contact with the sealing surface 17 and the overhanging seal surface 18 after overcoming the stop ridge 16 and a concave groove 42 following the annular ridge 41 are provided. A stick-shaped cosmetic feeding container characterized in that 2. The stick-shaped cosmetic product dispensing container according to claim 1, wherein at least the skirt body 1 and the cap 5 are made of a synthetic resin having a Rockwell hardness of R90 to R110.