JP2791653B2 - Cosmetic container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic container for accommodating a stick-shaped cosmetic such as lipstick, and more particularly to a cosmetic container using a drawn straight tube for a body for accommodating the cosmetic.

[0002]

2. Description of the Related Art In a cosmetic container, there is a so-called squeezing tube having a cylindrical body formed by squeezing a flat plate as a main body for accommodating cosmetics. However, there is a drawback in that the production of a squeezing tube requires many steps. is there. If the number of steps is large, it is very difficult to make the cylinder a perfect circle. For this reason, in order to reduce the number of processes, thereby improving dimensional accuracy, dimensional stability, and improving the feeding / unloading performance, a straight pipe formed by drawing has been used for the main body. FIG. 9 shows an example of a cosmetic container in which a straight tube formed by a drawing process is used for a main body for housing the cosmetic. That is, a main body 101 formed of a straight pipe by a drawing process is coaxially arranged at an interval on the inner peripheral side of the skirt body 100 having an open upper end. The central part of the main body 101 and the hakama cylinder 100
The middle tool 103 is attached between the two. A spiral groove 1 is provided on the inner peripheral surface between the hakama cylinder 100 and the main body 101.
An outer cylinder body 105 having a spiral shape 07 is arranged.
The outer cylinder 105 is integrally fitted to the inner peripheral surface of the skirt cylinder 100 and is rotatable relative to the main body 101. On the inner peripheral side of the main body 101, an inner plate body 109 for housing and holding cosmetics is housed. Protrusions 111, 111 are provided at the lower end of the inner plate 109 so as to face each other in the radial direction. These projections 111, 111 are fitted into the spiral grooves 107 through sliding holes 113, 113 provided in the lower part of the main body 101. A sliding portion 115 which fits into a concave portion 106 fitted on the inner peripheral side of the outer cylindrical body 105 is provided on the outer peripheral side of the central portion of the main body 101.
Are formed to prevent the main body 101 from slipping upward. Reference numeral 116 denotes a cap which can be attached and detached so as to close the upper end opening of the skirt body 100. In such a configuration, when the hakama cylinder 100 is rotated, the projections 111 of the inner plate body 109 fitted in the spiral groove 107 are
By moving along the sliding holes 113, 113 of FIG. 1 to ascend and descend, the inner plate body 109 for accommodating the cosmetic is fed and fed. In such a conventional cosmetic container, the outer cylinder 105 is tightly fitted (solid fit) to the main body 101, and the middle tool 103 is tightly fitted to the outer cylinder 105 and the main body 101, respectively. However, it is practically extremely difficult to maintain high dimensional accuracy of a straight pipe manufactured by drawing, and it is inevitable that a certain dimensional error is involved. For this reason, variations in the cylinder diameters of the main body, the outer cylindrical body, and the middle member are caused by manufacturing errors, resulting in the following disadvantages. That is, the jig 1
If the diameter of 03 is smaller than the appropriate dimension, the sliding resistance between the main body 101 and the outer cylindrical body 105 in the sliding portion 115 becomes too large. For this reason, feeding and feeding become heavy, and smoothness cannot be obtained. Further, if the diameter of the middle tool 103 is larger than the appropriate dimension, the sliding resistance between the main body 101 and the outer cylinder 105 in the sliding portion 115 becomes too small. For this reason, there is play during feeding and feeding,
The transfer becomes too light, resulting in a poor feed-out feeling. Further, in this case, the airtightness of the container is impaired, and there is a possibility that the cosmetic may be deteriorated by the invasion of the outside air.

[0003] As described above, in a conventional cosmetic container in which the main body, the outer cylindrical body, the inner member, and the like are closely adhered to each other while using the straight pipe as the main body, a smooth feeding and unloading is required. It has been difficult to achieve various characteristics required for this type of container, such as feeding, good feeling of feeding, and maintaining airtightness. Conventionally, silicone oil or the like is injected between the components of the container to prevent backlash and to improve feeding and feeding. Due to the poor chemical compatibility, the use of silicone oil is not desirable.

[0004] By the way, cosmetics such as lipstick, which are difficult to remove and those which have moisture, have recently become popular. However, such cosmetics are characterized by relatively large amounts of volatile substances when viewed in terms of components. For this reason,
If the airtightness of the container is not improved, there is a strong possibility that the cosmetic will deteriorate due to aging. If the airtightness of the container is not improved, the cosmetic will shrink after being stored, causing “falling out” (a phenomenon in which the cosmetic falls out of the inner plate as a result of shrinkage), “getting away” (causing the There were many occurrences such as a phenomenon that could not effectively cope with the transfer, and a "bending" (a phenomenon in which the cosmetic material was easily broken or broken as a result of shrinkage).

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of such a background. That is, an object of the present invention is to achieve good feeding and feeding in a cosmetic container. Another object of the present invention is to improve the airtightness of a cosmetic container using a straight tube as a main body. As a result, even when used as a cosmetic container having a large amount of volatile components, a good usability state is maintained for a relatively long period of time, and the occurrence of “falling out”, “leaving away” and “breaking” is prevented. In addition, the present invention also ensures that even if there is a variation in the product accuracy of the main body, the hakama cylindrical body, the middle tool, and other cylindrical bodies constituting the cosmetic container, especially the accuracy of the diameter dimension, inconvenience due to the unevenness does not occur. It is intended to provide a novel structure.

[0006]

In order to achieve the above-mentioned object, the present invention provides a main body having a lower portion provided with a sliding hole along the longitudinal direction, a main body having the main body slidably fitted therein and a spiral groove formed on an inner peripheral surface. A rotatable skirt body provided with an inner plate, a lower plate having a projection slidably engaged with the spiral groove through the sliding hole and accommodating and holding cosmetics, and a main body. And a middle member attached to the outside of the cosmetic container, wherein a ring body made of an elastic material is provided between the middle member and the skirt member so as to surround a sliding portion of the main body. The ring body is connected to the middle member, a gap is formed between the lower part of the ring body and the main body, and a rib is provided on the inner peripheral surface of the lower part of the ring body along the circumferential direction, and the rib is attached to the main body. The outer peripheral surface is slidably abutted in the circumferential direction, and the lower part of the ring body elastically contacts the cylindrical body with the rib interposed therebetween. Subjecting the material container. At this time, it is conceivable that the lower part of the ring body has a large inner diameter and a small outer diameter. In addition, a protrusion is provided at the middle end of the ring body, a valley is provided at the end of the middle body ring side,
It is conceivable that the projection fits into the valley. In addition, it is conceivable to expand the lower end of the ring body toward the hakama cylinder. Also, another rib protrudes from the lower end of the ring body,
It is conceivable that the rib is pressed against the inner peripheral surface of the barrel body.
Further, it is conceivable that the ring body and the inner member are formed integrally, and the lower end of the ring body is expanded toward the hakama cylindrical body. Also,
It is conceivable that the ring body and the inner member are integrally formed, another rib is protruded from the lower end of the ring body, and this rib is pressed against the inner peripheral surface of the skirt body. Further, it is conceivable that the protrusion is triangular. It is also conceivable that the protrusion is semicircular. It is also conceivable that the valleys are formed continuously. Further, it is conceivable to provide the ribs in a dot shape. It is also conceivable to provide the ribs endlessly.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. First, there is a hakama cylindrical body 1 having an open upper end, and a main body 3 is coaxially arranged on the inner peripheral side of the hakama cylindrical body 1 with a space therebetween. The main body 3 is formed of a straight pipe whose upper end and lower end are formed to have the same diameter by drawing or the like, and is open at the top and bottom. At the symmetrical position at the lower part of the main body 3, a sliding hole 4 extending to the lower end along the longitudinal direction is provided. In addition, the central portion of the main body 3 is bent in a protruding arc shape to form the sliding portion 5. The diameter of the main body 3 is the same except for the sliding portion 5. Reference numeral 7 denotes a jig mounted on the outside of the main body 3. The jig 7 is formed of a vertically open cylinder, and is disposed above the skirt cylinder 1. A spiral groove 11 is formed in a spiral shape on the inner peripheral surface of the hakama cylinder 1. A ring body 8 made of an elastic material is provided between the skirt cylinder 1 and the middle tool 7 so as to surround the sliding portion 5 of the main body 3. That is,
The ring body 8 has a concave portion 6 into which the sliding portion 5 of the main body 3 is slidably fitted.

An inner plate 13 is arranged on the inner peripheral side of the main body 3. The inner plate 13 is formed of a vertically open cylinder,
A pair of projections 15, 15 project from symmetrical positions of the lower end, and the pair of projections 15, 15 are screwed into the spiral groove 11 through the above-described sliding hole 4. The cosmetic 26 is stored and held in the inner plate 13.
Reference numeral 14 denotes a protrusion provided on the inner wall of the inner plate 13 to prevent the cosmetic 26 from coming off. In FIG. 1, reference numeral 2 denotes a bottom hole provided at the bottom of the cylindrical body 1.

The fitting relationship between the main body 3, the middle member 7, the ring body 8, and the skirt body 1 will be described in more detail with reference to FIG. The lower portion 17 of the ring body 8, that is, the portion from the lower end to immediately below the sliding portion 5, has an inner diameter a larger than the inner diameter c of the ring body 8 and an outer diameter b smaller than the outer diameter d of the ring body 8. Is formed. Therefore, a gap G is formed between the main body 3 and the cylindrical body 1 in the lower portion 17 of the ring body 8. The lower end portion 16 of the ring body is expanded toward the hakama cylinder 1 side, and is formed to be larger than the inner diameter of the hakama cylinder 1 before being assembled. As a result, it is urged toward the hakama cylinder 1 side and is always in pressure contact with the hakama cylinder 1. A point-like rib 19 is provided on the inner peripheral surface of the lower portion 17 along the circumferential direction, and the rib 19 slides on the outer peripheral surface of the main body 3. A triangular projection 20 protrudes from the upper end with the rib 19 interposed therebetween. On the other hand, a valley 21 corresponding to the projection 20 is continuously provided in a knurled shape at the end of the jig,
The ring body 8 and the middle tool 7 are integrally connected by pushing the protrusion 20 into an arbitrary valley 21 of the knurl. Upper part 18 of ring body 8
Is stretched straight and abuts on the inner peripheral surface of the skirt body 1. In the illustrated embodiment, the protrusion 20 is formed slightly larger than the valley 21, and the tip is slightly rounded. The upper part of the ring body 8 is provided with a notch 24 as shown in FIG. 3 for assembling and fitting with the main body 3. The lower end 9 of the middle tool 7 is spot-welded to the step 12 provided on the upper part of the skirt body 1 by ultrasonic waves or the like. The upper part of the middle tool 7 is detachably fitted to the cap 27. In the figure, reference numeral 28 denotes an outer protrusion provided at the center of the jig 7.

In the case of the above embodiment, the main body 3 is made of a metal such as aluminum. On the other hand, the hakama cylinder 1 and the jig 7 are desirably made of the same material in terms of spot welding, and are made of a resin such as acrylonitrile-styrene copolymer resin (AS resin). In the case of the above embodiment, the cap 27 is also made of a resin such as an acrylonitrile-styrene copolymer resin (AS resin). The ring body 8 is made of a resin such as polyacetal (POM) or ultra-high-molecular-weight polyethylene, and the inner plate body 13 is made of a resin such as polybutylene terephthalate (PBT).

The operation and effect based on the above configuration will be described with reference to FIG. First, the ring body 8 is fitted to the main body 3,
Further, the intermediate plate 13 is inserted into the main body 3, and in this state, the lower portion of the main body 3 is inserted into the cylindrical body 1. Next, the jig 7 is extrapolated into the main body 3, the lower end 9 of the jig is brought into contact with the step 12 of the cylindrical body 1, and the projection 20 of the ring 8 is pushed into the valley 21. Next, the step body 12 and the lower end portion 9 of the tool are spot-welded to form the ring body 8 and the skirt body 1 integrally. As a result, the ring body 8 is forcibly fitted into the barrel body 1, and the lower end 16 of the ring body is pressed toward the main body 3.

By the way, the external pressure is formed such that the inner diameter a of the lower portion 17 is larger than the inner diameter c of the ring body 8 and the outer diameter b is smaller than the outer diameter d of the ring body 8 in the ring body 8. Therefore, they act in mutually opposite directions with the rib 19 as a fulcrum. That is, when the lower end portion 16 of the ring body is pressed, the lower part 17 of the ring body tries to bend in the direction of the main body 3, but the rib 19 hits the main body 3, so that the rib 19 does not bend further to the main body 3 side. Since the rib 19 is strongly pressed by the main body 3, the lower portion 17 of the ring body above the rib 19 is bent toward the skirt barrel 1 with the rib 19 as a fulcrum. As a result, the upper part 18 of the ring body,
The outer peripheral surface 18a of the concave portion 6 surrounding the sliding portion 5 is
Is pressed strongly against the inner peripheral surface of the main body 3, and no excessive force is applied to the sliding portion 5 of the main body 3. As described above, since the lower portion 17 of the ring body 8 made of resin acts like a spring with the rib 19 as a fulcrum, the external pressure acts in the opposite direction with the rib 19 as a fulcrum, and is completed at the lower portion 17 of the ring body. . For this reason, when the container is extended and retracted, the sliding resistance between the main body 3 and the skirt member 1 in the sliding portion 5 does not excessively increase as shown in FIG. That is, when the diameter of the main body 3 is slightly larger than the appropriate dimension, the sliding portion 5 of the main body 3 is formed below the concave portion 6 of the ring body 8 and slightly smaller. The body 3
The sliding portion 5 can slide only by slightly contacting the upper portion of the concave portion 6. Therefore, the delivery of the container
The transfer can be performed under the set optimum conditions.

Further, the gap between the main body 3, the inner member 7, and the skirt cylinder 1 does not change at all by the above-mentioned spring action of the ring body 8, so that the airtightness of the container is not affected. Therefore, it contributes to a container having an airtight structure in which the gap between the main body 3 and the jig 7, the ring body 8, and furthermore the hakama cylinder 1 is made as small as possible.

[0014] Since the airtightness can be improved in this way, even when used as a cosmetic container having a large amount of volatile components, good usability is maintained for a relatively long period of time, and "peeling out" occurs. , "Leave" and "break" can be prevented. In addition, even if the accuracy of the diameter of each cylindrical body such as the hakama cylindrical body, the middle tool, the main body varies somewhat, it is absorbed by the gap formed at the lower part of the ring body,
It does not affect the feeding and feeding and the airtightness.

The embodiment shown in FIGS. 5 to 7 is a case in which the connection between the ring body 8 and the middle member 7 and the state of the pressure contact of the ring body 8 with the skirt tube 1 are modified. FIG. 5 shows a case in which a rib 16a is protruded from the lower end instead of expanding the lower end 16 of the ring body, and this rib 16a is pressed against the inner peripheral surface of the skirt body 1. In this case, the other configuration of the ring body 8 is the same as that described above. Even in such a case, the same operation and effect as those of the above-described embodiment can be obtained.

FIGS. 6 and 7 show the case where the ring body 8 and the middle member 7 are integrally formed. FIG. 6 shows the lower end portion 16 of the ring body.
FIG. 7 shows an embodiment in which a rib 16a is protruded from the lower end portion and the rib 16a is pressed against the inner peripheral surface of the skirt tube body 1. FIG. Even in such a case, the same operation and effect as those of the above-described embodiment can be obtained.

The present invention is not limited to the above embodiment. For example, it is conceivable that the form of connection between the ring body and the jig is such that a protrusion is provided on the jig, and the above-described embodiment is reversed, such as when a valley is provided on the ring body.

In addition, the integral connection between the inner member 7 and the skirt body 1 may be performed by forced fitting instead of spot welding.

The ribs 19 may be provided endlessly or in a dotted manner. Further, the shape of the protrusion is arbitrary, and may be, for example, a semicircle. The shape of the valleys is also arbitrary. For example, the valleys may not be continuous in a knurled shape but may correspond one-to-one with the protrusions.

Further, the above-described various embodiments can be appropriately combined.

The method of accommodating the cosmetic applied to the cosmetic container according to the present invention is not limited. The present invention can be applied to both a filled cosmetic container and a plug-in cosmetic container. The filling type cosmetic container is a container in which the cosmetic is filled from the upper open portion (direct filling type) or a container in which a hole is provided in the bottom of the skirt and the cosmetic is filled from the hole (the bottom). (Filling type) or any type. In the case of filling type, after solidification of cosmetics,
The mold is removed and the cap 27 is fitted.

The cosmetic contained in the cosmetic container according to the present invention is optional. In addition to the lipstick described in the above embodiment, a foundation and the like can be considered. In the case of the foundation, there are, for example, a semi-milled product, a product obtained by solidifying a powdery material, a gel-like material, and the like, and any of these can be contained in the container of the present invention. The diameters of the main body, the jig, the hakama cylinder, the middle dish, and other cylinders constituting the cosmetic container of the present invention are not limited. The present invention can be applied to either the large diameter or the small diameter described in the above embodiment.

The material of each component is arbitrary. For example,
The members constituting the outside of the container, i.e., the skirt tube, the inner member and the cap are made of metal or a material obtained by vapor-depositing a resin on the metal. If a cap is provided and the inner tool is fitted to the inner cap as described above, a highly airtight container can be obtained. Further, when the cap is provided with an inner cap and the members constituting the outside of the container, that is, the skirt member, the middle tool, and the cap are made of resin, the container has low airtightness. Furthermore, if the inner cap is omitted and the inner tool is directly fitted on the cap, and the members constituting the outer side of the container, that is, the skirt cylinder, the inner tool, and the cap are made of resin, the airtightness is extremely high. It becomes a low container. Further, the main body can be made of resin. The presence / absence / size of the airtightness of the container is based on the material of each component, and is not directly related to the subject of the present invention.

Further, as the metal or resin constituting each member, an appropriate metal or resin other than those described in the above embodiment can be used. For example, in the case of an intermediate plate, a direct filling type or a plug-in type is often made of polypropylene (PP), and a bottom-filling type is often made of polybutylene terephthalate (PBT).

The main body may have a curved structure of the sliding portion by a so-called drawing process in which a flat plate is drawn into a cylindrical body as in a conventional type. However, as in the illustrated embodiment, it is desirable to form the main body from a straight pipe formed by drawing. This is because there is no need to perform drawing processing, so that the stability of processing is large, and there is no risk of catching the projection of the middle plate body on the drawn part when inserting the middle plate body into the main body and damaging it. Due to difficulties in overrun, etc.
This is because the transfer is further improved. Therefore, the effect of the present invention is remarkably exhibited particularly when a straight tube is used for the main body.

[0026]

As described above, according to the cosmetic container of the present invention, it is possible to improve the feeding and the feeding. In addition, since it is possible to improve the airtightness, even when used as a container for cosmetics with a large amount of volatile components,
The good usability is maintained for a relatively long period of time, and the occurrence of “falling out”, “leaving away”, and “breaking” can be prevented. Further, the above-mentioned fitting relationship has an effect that even if the accuracy of the diameters of the respective cylindrical bodies such as the hakama cylindrical body, the jigs, and the main body slightly varies, the effects are not affected.

[Brief description of the drawings]

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

FIG. 2 is an enlarged view of a portion A in FIG.

FIG. 3 is a perspective view of the ring body of FIG. 1;

FIG. 4 is a view showing a joining relationship between a protrusion of a ring body and a valley of a middle tool.

FIG. 5 is a sectional view of a main part showing another embodiment of the cosmetic container according to the present invention.

FIG. 6 is a sectional view of a main part showing another embodiment of the cosmetic container according to the present invention.

FIG. 7 is a cross-sectional view of a main part showing another embodiment of the cosmetic container according to the present invention.

FIG. 8 is a view used to explain the operation of the cosmetic container according to the present invention.

FIG. 9 is a sectional view showing a cosmetic container according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hakama cylindrical body 2 Bottom hole 3 Main body 4 Sliding hole 5 Sliding part 6 Depression 7 Middle tool 8 Ring body 9 Lower part of middle tool 10 Joining part 11 Spiral groove 12 Step 13 Middle plate body 14 Projection 15 Projection 16 Ring Lower end of body 16a Rib 17 Lower part of ring body 18 Upper part of ring body 18a Outer peripheral surface 19 Rib 20 Projection 21 Valley 24 Notch 26 Cosmetic 27 Cap 28 Outer projection

Continuation of front page (72) Inventor Kazutoshi Torigoe 627 Hananoi, Kashiwa-shi, Chiba Pref. Hidan Co., Ltd. (56) References JP-A-8-19421 (JP, A) JP-A-8-19422 (JP, A) JP 9-121937 (JP, A) JP 9-131219 (JP, A) JP 9-131220 (JP, A) JP 9-131221 (JP, A) Registered utility model 3006521 ( JP, U) Registered utility model 3006522 (JP, U) Registered utility model 3017926 (JP, U) Registered utility model 3017927 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A45D 40 / 00 A45D 40/06 A45D 40/12

Claims (12)

(57) [Claims] 1. A main body having a lower portion provided with a sliding hole along a longitudinal direction, a rotatable skirt tube body having the inner surface slidably fitted therein and having a spiral groove formed on an inner peripheral surface thereof, and a lower end portion. And a middle plate body that has a projection slidably engaged with the spiral groove through the sliding hole and accommodates and holds cosmetics, and a middle tool attached to the outside of the main body. In cosmetic containers,
A ring body made of an elastic material is provided between the hakama cylindrical body and the middle tool so as to surround the sliding portion of the main body, and the ring body is connected to the middle tool, and between the lower part of the ring body and the main body. A gap is formed, and a rib is protruded from the inner peripheral surface of the lower part of the ring body along the circumferential direction, and the rib is slidably contacted with the outer peripheral surface of the main body in the circumferential direction, and the ring is sandwiched between the ribs. A cosmetic container characterized in that the lower part of the body is in elastic contact with the barrel body. 2. The cosmetic container according to claim 1, wherein the lower part of the ring body is formed to have a large inner diameter and a small outer diameter, and the lower end part is urged toward the skirt cylinder side. And cosmetic container. 3. The cosmetic container according to claim 2, wherein a protruding portion is provided at an end of the ring member toward the middle member, a valley portion is provided at an end portion of the ring member at the side of the ring member, and the protrusion is provided at the valley. A cosmetic container fitted to a part. 4. The cosmetic container according to claim 3, wherein a lower end portion of the ring body is expanded toward the skirt cylinder side. 5. The cosmetic container according to claim 3, wherein another rib protrudes from the lower end of the ring body and the rib is pressed against the inner peripheral surface of the skirt body. . 6. The cosmetic container according to claim 2, wherein the ring body and the inner member are integrally formed, and a lower end of the ring body is expanded toward the skirt body. 7. The cosmetic container according to claim 2, wherein the ring body and the inner member are integrally formed, and another rib is protruded from the lower end of the ring body, and the rib is formed on the inner periphery of the hakama cylindrical body. A cosmetic container characterized by being pressed against a surface. 8. The cosmetic container according to claim 3, wherein the projection has a triangular shape. 9. The cosmetic container according to claim 3, wherein said projection is semicircular. 10. The cosmetic container according to claim 8, wherein the valleys are formed continuously. 11. The cosmetic container according to claim 3, wherein said ribs are provided in a dotted manner. 12. The cosmetic container according to claim 3, wherein said rib is provided endlessly.