JPH0956462A - Bottom fill type let-out container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retain a highly sealed state between the outer cylindrical body and the inner cylindrical body of a container main body and, at the same time, prevent the occurrence of a pressure change in an internal space of the container main body which is caused when a cosmetic is extracted/inserted. SOLUTION: By means of a seal cylinder 16, a sufficient seal is formed between an outer cylindrical body 1 and an inner cylindrical body 18, inserted and attached into the outer cylindrical body 1 so that it is freely rotated and cannot be pulled out. A seal plate 7, tightly closing the filling opening 6 of the lower end of the outer cylindrical body 1, is provided with a valve function part 8 which is opened/closed according to a pressure difference between inside and outside the outer cylindrical body 1, and a pressure change in the outer cylindrical body 1, which occurs during the operation of extracting/inserting a cosmetic A which is displaced up/down in the inner cylindrical body 18 integrally with a saucer body 23, is eliminated by the opening/closing of the valve function part 8, thereby smoothly and safely performing the operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottom-filling type dispensing container for storing stick-shaped cosmetics such as lipsticks, which has a high sealing function to prevent the emission of volatile components such as aromatics when not in use. is there.

[0002]

2. Description of the Related Art Bottom filling type dispensing containers for stick-shaped cosmetics are
The saucer body, which is a constituent part of the feeding container, and the inner cylinder body into which the saucer body is movably moved up and down are assembled as a part of the molding frame to achieve the cooling and solidification molding of the stick-shaped cosmetic material and the cooling thereof. Since it is possible to achieve the solidification molding and the assembling of the stick-shaped cosmetic material to the feeding container, it is extremely advantageous in handling and molding the stick-shaped cosmetic material which is easily scratched.

However, in this bottom-filling type dispensing container, it is necessary to inject and fill the molten cosmetic into the container body from the filling port of the outer cylinder which is the bottom opening. The saucer to be used must have a cylindrical shape with an open bottom, and a filling port for injecting molten cosmetic must be formed in the bottom of the container body. However, there is an inconvenience that it is difficult to provide a high sealing function for preventing the emission of volatile components such as.

The seal of the filling port opened at the bottom of the container body can easily achieve a hermetic seal by closing the filling port with a sealing plate, but in particular, the components of the container body are displaced from each other. It is difficult to achieve a seal between the inner cylinder and the outer cylinder, and it has been strongly desired to achieve a high seal between the constituent parts of the container body.

In order to meet this demand, a seal member made of an elastic material which is in close contact with all of the members forming the outer cylinder and the inner cylinder is provided to seal the lower end opening of the tray, that is, the inner cylinder. In some cases, the lower half side is sealed, and the upper half side of the inner cylinder containing the cosmetic material is sealed by the cap body to obtain a high sealing property of the entire dispensing container.

[0006]

The prior art described above is
Certainly, it is possible to give a high sealing property to the bottom filling type feeding container, but if the sealing strength of the seal member that achieves and maintains the seal between the outer cylinder body and the inner cylinder body is large,
Air does not come in and out of the lower part of the cosmetic material held in the saucer in the container body, so that a negative pressure is applied to the lower space part of the cosmetic material in the container body when the stick-shaped cosmetic material is delivered.
On the other hand, there is a problem that a positive pressure is generated when the stick-shaped cosmetics are fed in, and the operation of feeding the stick-shaped cosmetics cannot be achieved smoothly.

In particular, when the stick-shaped cosmetic material is fed in,
After mounting the cap body, there is a danger that the saucer body is illegally pushed up by the positive pressure pushing-up action remaining in the space below the cosmetic material in the container body, causing so-called "top thrust" of the cosmetic material. .

Therefore, the present invention was devised to solve the above-mentioned problems in the prior art, and the cosmetics are maintained while maintaining a high sealing state between the outer and inner cylindrical bodies of the container body. It is a technical issue to prevent the occurrence of pressure fluctuations in the inner space of the container body due to taking in and out of the container, and thus exhibits a high sealing property when not in use, and a smooth and good taking out and putting-in operation of the stick-shaped cosmetics is obtained during use, The purpose is to increase safety.

[0009]

In order to solve the above technical problems, the invention according to claim 1 of the present invention is characterized in that a mounting function portion is formed on an upper end portion and a screw groove is formed on an inner peripheral surface. It has a cylindrical outer cylinder with a filling port as a melted cosmetics injection port, which is closed at the lower end with a sealing plate, and the upper half storage cylinder part that also functions as the molding surface of the cosmetics. Insert the lower half of the guide cylinder with the vertically elongated guide hole into it, and have a cylindrical inner cylinder that can be attached to the outer cylinder so that it is rotatable and cannot be pulled out. And an immovable assembly, and having an elastic material seal cylinder that makes the inner peripheral surface closely and slidably contact the outer peripheral surface of the inner cylindrical body, the outer cylindrical body passing through the guide hole of the inner cylindrical body at the lower end of the outer peripheral surface. A projecting screw-engaging projection that engages with the screw groove of the, and has a cylindrical saucer that can be vertically displaced in the inner cylinder. The outer cylinder has a cap body that is attached to and detached from the mounting function part of the outer cylinder and that seals the upper end opening of the inner cylinder. The means is to provide a valve function part that opens and closes according to the pressure difference between the inside and the outside.

According to a second aspect of the present invention, the valve function portion of the seal plate according to the first aspect is formed by molding the seal plate with an elastic material and providing a linear cut in the central portion of the seal plate. To do that is the means.

According to a third aspect of the present invention, the valve function portion of the seal plate according to the first aspect is provided with at least a pair of check valve structures that are in mutually opposite postures in the central portion of the seal plate. Is configured as a means.

According to a fourth aspect of the present invention, in the construction of the first aspect of the invention, the assembling of the inner tubular body with respect to the outer tubular body is the boundary portion between the housing tubular portion of the inner tubular body and the guide tubular portion. A locking projection is circumferentially provided on the outer peripheral surface of the central portion, and the locking projection is closely slid from below onto the lower end edge of the inner peripheral surface of the seal cylinder that is tightly and immovably assembled to the outer cylinder. By engaging and locking the inner cylindrical body with respect to the outer cylindrical body, the assembly is achieved.

[0013]

According to a first aspect of the present invention, when the cap body is not used, the inner cylinder body accommodating the cosmetic material is integrally sealed with the saucer body to seal the upper end opening of the inner cylinder body with the cap body and the outer cylinder body. Since the seal cylinder seals between the body and the inner cylinder,
The cosmetic is hermetically contained in the container, and the volatile components are surely prevented from being released to the outside.

In the use state with the cap body removed, when the saucer body is displaced up and down with respect to the inner cylinder body in order to take the cosmetics in and out of the inner cylinder body, a space between the outer cylinder body and the inner cylinder body by the seal cylinder is formed. Since the sealed state is still maintained, the pressure inside the outer cylinder increases or decreases due to the increase or decrease in the volume of the inner space of the outer cylinder due to the vertical displacement of the cosmetic.

When the pressure inside the outer cylinder increases or decreases and a pressure difference occurs between the inside and the outside of the outer cylinder, the valve function portion provided on the seal plate is opened according to this pressure difference, The pressure difference generated between the inside and the outside of the outer cylinder is eliminated, and the pressure inside the outer cylinder is made substantially equal to the atmospheric pressure.

According to the second aspect of the present invention, the valve function portion according to the first aspect of the present invention is constituted by a cut line which is a simple cutting line provided in the central portion of the seal plate made of an elastic material, so that there is no pressure difference. Following the elastic deformation of the entire seal plate, it opens and closes,
Further, due to the structure, it is extremely easy to attach the valve function portion to the seal plate, and the cost required for manufacturing the seal plate having the valve function portion can be sufficiently reduced.

According to a third aspect of the present invention, the valve function portion of the first aspect of the invention is configured by a combination of a pair of check valves in opposite postures. Therefore, when positive pressure is generated in the outer cylinder, When one of the check valves is open and the air inside the outer cylinder is exhausted, and when negative pressure occurs in the outer cylinder, the other check valve is opened and the inside of the outer cylinder is opened. Suction air to suppress the pressure difference between the outer cylinder and the outside, and because of its structure, the sealed state is stable and reliable, and
It is possible to accurately set the value of the pressure difference value that switches from the closed state to the open state.

According to a fourth aspect of the present invention, the assembling of the inner tubular body according to the first aspect of the present invention that cannot be pulled out from the outer tubular body is performed with respect to the seal tube that is tightly and immovably assembled to the outer tubular body. Since this is achieved by locking from below the locking ridge integrally formed in the cylindrical body, the tight sliding contact of the seal cylinder with the outer peripheral surface of the inner cylindrical body is firmly and stably achieved and maintained, and thus the inner cylindrical body The assembly that is rotationally displaceable with respect to the outer tubular body and cannot be pulled out can be stably maintained in a state where a high sealing property between the outer tubular body and the inner tubular body is ensured.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an overall vertical cross-section with the cap body 26 attached, with the saucer body 23 positioned in the lower half of the right half and the saucer body 23 in the upper half of the left half. 1 comprises a screw cylinder 2, an exterior cylinder 4, a seal plate 7, a mounting cylinder 12, and a seal cylinder 16.

The screw cylinder 2 is provided with two thread grooves 3 on its inner peripheral surface over its entire height range, and the outer cylinder 4 for immovably fitting and fixing the screw cylinder 2 is more than the screw cylinder 2. It has a large height, and a bottom flange 5 having an inner flange shape is provided around the lower end edge thereof to form a filling port 6, and a projecting strip projectingly provided on the upper surface of the bottom flange 5 is provided with a screw cylinder 2 The immobilization of the screw cylinder 2 is achieved by ultrasonic welding to the lower end surface of the.

The mounting cylinder 12 has an outer brim-shaped flange 14 provided around the upper end of the outer peripheral surface of the assembling cylinder 15 fitted and fixed in the upper end opening of the exterior cylinder 4, and the assembling cylinder 15 is extended upward. The flange 14 configured to stand up and down the detachable cylinder portion 13 that forms the mounting function portion in the above-described form and contacts the upper end surface of the exterior cylinder 4.
Is fixedly assembled to the outer cylinder 4 by ultrasonically welding a ridge formed around the lower surface of the outer cylinder to the upper end surface of the outer cylinder 4, and the lower end surface of the assembled cylinder portion 15 and the upper end surface of the screw cylinder 2 are fixed. A gap is formed between them.

The seal cylinder 16 made of an elastic material is the mounting cylinder 12.
In the state of being fitted and assembled in the assembling tubular portion 15, a flange piece 17 that is provided around the lower end of the assembling outer collar is provided between the lower end surface of the assembling tubular portion 15 and the upper end surface of the screw cylinder 2. By arranging them in the gap between them and strongly sandwiching them between the assembling cylinder portion 15 and the screw cylinder 2, the closeness of the flange piece 17 to the mounting cylinder 12 is achieved and maintained, and the inside of the seal cylinder 16 is maintained. By abutting the lower end of the peripheral surface against the outer peripheral surface of the inner cylindrical body 18, the outer cylinder 4 of the outer peripheral surface of the collar piece 17 is formed.
Maintains close contact with the inner surface.

The inner cylinder 18 has a height substantially equal to that of the screw cylinder 2, and the lower half of the guide cylinder portion 20 provided with a pair of vertically elongated guide holes 21 is provided in the screw cylinder 2. Is rotatably fitted to, and is locked to the lower end edge of the seal cylinder 16 from below at a boundary with the storage cylinder 19 that is the upper half having the upper end opening cut obliquely, that is, in the center. The inner cylindrical body 18 has a structure in which a locking ridge 22 for achieving an immovable assembly with respect to the outer cylindrical body 1 is provided around the inner cylindrical body 18, but since the inner cylindrical body 18 is made of metal,
The locking projection 22 is formed by bending with a pressure roller.

A saucer body 23 formed in a simple cylindrical shape
Has an integrally screwed projecting piece 24 projecting from the lower end of its outer peripheral surface facing both guide holes 21 and both screw grooves 3, and has a saucer for the cosmetic A that has been solidified by cooling on the upper inner peripheral surface. Body 23
A plurality of holding projections 25 are provided so as to firmly and stably achieve and maintain the assembling.

A cap body 26 having a cylindrical shape with a top, which is detachably fitted to the detachable cylinder portion 13 of the mounting cylinder 12 at the lower end opening.
Is fixed to the inner upper end thereof by immovably internally fixing a seal cap piece 27 made of a soft material having a topped cylindrical shape, which is tightly fitted to the upper end opening of the accommodating tubular portion 19 of the inner tubular body 18, and thereby is fed out. The hermetic seal of the container body is made stronger, and the mounting posture of the cap body 26 at the time of mounting is made stable.

The seal plate 7 which is attached to the bottom collar 5 of the outer casing 4 to seal the filling port 6 is integrally provided with the valve function portion 8. In the case of the embodiment shown in FIG. Is the seal plate 7
The whole is made of a relatively thick plate structure made of an elastic material, and the valve function part 8 is configured by linearly cutting and forming a cut 9 in the central part of the seal plate 7.

In the embodiment shown in FIG. 3, when a pressure difference is generated between the inside and the outside of the outer cylindrical body 1, the seal plate 7 made of an elastic material is used.
The whole elastically deforms, and the elastic deformation of the seal plate 7 opens the slit 9 to allow air to pass therethrough.

FIGS. 4 and 5 show the construction of another embodiment of the valve function portion 8 provided on the seal plate 7.
A pair of vent holes 10 are formed in the central portion of each of the vent holes 10 on the inner side surface of the seal plate 7 for one vent hole 10 and on the outer side surface of the seal plate 7 for the other vent hole 10. The valve function part 8 is configured by covering the entire opening of the above and mounting a thin plate-shaped valve piece 11 made of an elastic material so as to be swingable.

In the embodiment shown in FIGS. 4 and 5, when a pressure difference is generated between the inside and the outside of the outer cylinder 1, one of the valve function parts 8 is opened according to this pressure difference to allow air to pass therethrough, Although the generated pressure difference is eliminated, the pressure difference at which the valve function portion 8 is opened can be arbitrarily and accurately set by the elasticity of each valve piece 11, so that the seal can be created by opening and closing indefinitely. It is possible to prevent the deterioration of the sex.

[0030]

Since the present invention has the above-described structure, the following effects can be obtained. While maintaining a high sealing property between the outer cylinder body and the inner cylinder body in the bottom filling type feeding container, a seal plate that closes the filling port of the outer cylinder body is provided according to the pressure difference between the outer cylinder body and the outside. Since the valve function part that opens and closes is provided, even if a pressure change occurs in the outer cylinder during the operation of putting in and out the cosmetics, this pressure change can be immediately eliminated by the opening and closing operation of the valve function part. It is possible to smoothly and suitably perform the operation of taking in and out the material.

Since no positive pressure is generated and remains in the outer cylinder during the operation of transferring the cosmetics, after the operation of transferring the cosmetics, the saucer body is illegally lifted while the cap body is attached to the cosmetics. There is no danger of causing a "top thrust", and a safe usage situation can be obtained.

When the pressure difference between the inside and the outside of the outer cylinder does not occur, the valve function part of the seal plate surely maintains the closed state, so that the hermetic seal of the entire container is not deteriorated and therefore the container It is possible to sufficiently exhibit high sealing properties.

[Brief description of drawings]

FIG. 1 is an overall vertical cross-sectional view showing an embodiment of the present invention in a non-use state, which is divided into a leftward and a rightward feeding state and a feeding state.

FIG. 2 is an enlarged semi-longitudinal sectional view of a central portion of the embodiment shown in FIG.

FIG. 3 is an overall perspective view showing an embodiment of a seal plate.

FIG. 4 is an overall vertical sectional view showing another embodiment of the seal plate.

5 is an overall plan view of the embodiment shown in FIG.

[Explanation of symbols]

1; Outer cylinder 2; Screw cylinder 3; Spiral groove 4; Exterior cylinder 5; Bottom flange 6; Filling port 7; Seal plate 8; Valve function part 9; Break 10; Vent hole 11; Valve piece 12; Mounting cylinder 13 Detachable cylinder part 14; Flange 15; Assembly cylinder part 16; Seal cylinder 17; Collar piece 18; Inner cylinder body 19; Storage cylinder part 20; Guide cylinder part 21; Guide hole 22; Locking ridge 23; 24: Screw-on projection piece 25; Holding projection piece 26; Cap body 27; Seal cap piece A; Cosmetics

Claims (4)

[Claims] 1. A molten cosmetic (A) injection port, which is formed with a mounting function portion at the upper end, is provided with a screw groove (3) on the inner peripheral surface, and is sealed at the lower end by a seal plate (7). The cylindrical outer cylinder (1) with the filling port (6) opened and the upper half storage cylinder (19) that also functions as the molding surface of the cosmetic (A) are extended to form a vertically long guide. The lower half of the guide cylinder part (20) provided with the hole (21) is inserted, and the cylindrical inner cylinder body (18) is attached to the outer cylinder body (1) so as to be rotatable and non-pullable, and A seal cylinder (16) made of an elastic material that is tightly and immovably assembled to the outer cylinder body (1), and has an inner peripheral surface closely slidingly contacting the outer peripheral surface of the inner cylinder body (18), and a lower end of the outer peripheral surface. A cylindrical tray that is provided with a screwing projection piece (24) penetrating through the guide hole (21) and screwed into the screw groove (3), and is assembled in the inner cylindrical body (18) so as to be vertically displaceable. The body (23) and the mounting function part of the outer cylinder (1) are attached and detached, and the upper end of the inner cylinder (18) is opened. Yes top cylindrical cap member for sealing the parts (26), consists,
A bottom-filling type feeding container in which the sealing plate (7) is provided with a valve function section (8) which opens and closes according to the pressure difference between the inside and the outside of the outer tubular body (1). 2. The valve function part (8) according to claim 1, wherein the seal plate (7) is formed of an elastic material, and a linear cut (9) is provided in the central part of the seal plate (7) to constitute the valve function part (8). Bottom filling type feeding container. 3. The bottom-filling mold according to claim 1, wherein at least a pair of check valve structures that are in opposite postures are provided in the central portion of the seal plate (7) to form the valve function portion (8). Delivery container. 4. A storage cylinder portion (19) of an inner cylinder body (18) and a guide cylinder portion.
A locking ridge (22) is provided around the outer peripheral surface of the central portion which is the boundary of (20), and the locking ridge (22) is tightly and immovably assembled to the outer cylindrical body (1). By tightly slidingly engaging the lower end edge of the inner peripheral surface of the attached seal cylinder (16) from below, it is possible to assemble the inner cylinder body (18) so that it cannot be pulled out from the outer cylinder body (1). The bottom-filling type pay-out container according to claim 1, 2 or 3.