JP3723871B2 - Bottom filling type feeding container - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a bottom-filling type feeding container for storing stick-shaped cosmetics such as lipsticks, which has a high sealing function to prevent the diffusion of volatile components such as fragrances when not in use.
[0002]
[Prior art]
The bottom-filling type payout container of the bar-shaped cosmetic is a bar-shaped cosmetic as a part of the molding frame, which includes a tray body that is a constituent part of the feed container and an inner cylindrical body that is assembled and mounted inside the tray body so as to be movable up and down. In addition to achieving this cooling and solidification molding, it is possible to achieve the assembly of the bar-shaped cosmetic material into the feeding container at the same time as this cooling solidification molding. It is advantageous.
[0003]
However, in this bottom-filling-type feeding container, it is necessary to inject and fill the molten cosmetic material into the container body from the filling port of the outer cylindrical body that is the bottom opening, so that the tray body that moves up and down in the container body The bottom of the container body must have a cylindrical shape with an open bottom, and a filling port for injecting molten cosmetic material must be formed at the bottom of the container body. There is an inconvenience that it is difficult to provide a high sealing function for preventing the diffusion of components.
[0004]
The seal of the filling port established at the bottom of the container body can achieve a hermetic seal simply by closing the filling port with a sealing plate. It is difficult to achieve a seal between the container and the outer cylinder, and it has been strongly desired to achieve a high seal between the components of the container body.
[0005]
In order to satisfy this demand, a seal member made of an elastic material is provided in close contact with all the members constituting the outer cylinder and the inner cylinder, and the seal on the lower end opening side of the tray body, that is, the lower half of the inner cylinder There is one that achieves a high sealing property of the entire feeding container by achieving a side seal and achieving a seal on the upper half side of the inner cylinder housing the cosmetic by a cap body.
[0006]
[Problems to be solved by the invention]
Although the above-described conventional technology can surely provide a high sealing property to the bottom-filling type feeding container, the sealing member that achieves and maintains the seal between the outer cylinder and the inner cylinder has high sealing strength. And the air in and out of the lower part of the cosmetics held in the saucer body in the container body disappears, and therefore, the negative pressure when feeding the stick-shaped cosmetics into the lower space part of the cosmetics in the container body, On the contrary, there is a problem that a positive pressure is generated when feeding the bar-shaped cosmetic material, and the feeding and feeding operation of the bar-shaped cosmetic material may not be smoothly achieved.
[0007]
In particular, during the feeding operation of the bar-shaped cosmetic, after the cap body is attached, the tray body is illegally pushed up by the positive pressure pushing action remaining in the lower space portion of the cosmetic in the container body. There is a danger of causing a “thrust”.
[0008]
Accordingly, the present invention was devised to solve the above-described problems in the prior art, and it is possible to put in and out cosmetics while maintaining a high sealing state between the outer cylinder and the inner cylinder of the container body. It is a technical issue to prevent the occurrence of pressure fluctuations in the internal space of the container body, so that it exhibits high sealing performance when not in use, obtains a smooth and good operation of stick-shaped cosmetics during use, and improves safety. The purpose is to increase.
[0009]
[Means for Solving the Problems]
In order to solve the above technical problem, the invention described in claim 1 among the present invention,
It has a cylindrical outer cylinder that forms a mounting functional part at the upper end, and has a groove formed on the inner peripheral surface, and a filling port as a molten cosmetic injection port that is sealed with a seal plate at the lower end. thing,
The upper half of the storage cylinder, which also functions as a cosmetic mold surface, is extended, and the lower half of the guide cylinder with a long guide hole is inserted so that the outer cylinder can rotate and cannot be removed. Having a cylindrical inner cylinder to be assembled;
Having a sealing cylinder made of an elastic material that is tightly and immovably assembled to the outer cylindrical body, and in which the inner peripheral surface is in sliding contact with the outer peripheral surface of the inner cylindrical body;
It has a cylindrical saucer body that protrudes through the guide hole of the inner cylinder through the guide hole of the inner cylinder at the lower end of the outer peripheral surface and is assembled to the inner cylinder so as to be movable up and down. ,
Attaching to and removing from the mounting function part of the outer cylinder, and having a cap-shaped cylindrical cap that seals the upper end opening of the inner cylinder,
Providing a valve plate that opens and closes according to the pressure difference between the inside and outside of the outer cylinder on the sealing plate that seals the filling port of the outer cylinder,
As a means.
[0010]
The invention according to claim 2 is configured such that the valve function part of the seal plate of the invention according to claim 1 is formed by forming the seal plate with an elastic material and providing a linear cut at the center of the seal plate, As a means.
[0011]
According to a third aspect of the present invention, the valve function portion of the seal plate according to the first aspect of the present invention is configured by providing at least a pair of check valve structures in opposite directions at the center of the seal plate. This is a means.
[0012]
According to a fourth aspect of the present invention, in the configuration of the first aspect, the assembly of the inner cylindrical body with respect to the outer cylindrical body is performed at a central portion that is a boundary between the storage cylindrical portion of the inner cylindrical body and the guide cylindrical portion. A locking ridge is provided on the outer peripheral surface, and the locking ridge is slidably locked 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 making it possible to achieve assembly, it is possible to prevent the inner cylinder from coming out of the outer cylinder.
[0013]
[Action]
According to the first aspect of the present invention, when the cap body is not used, the upper end opening of the inner cylinder body that stores the cosmetics integrally with the tray body is sealed with the cap body, and the outer cylinder body and the inner cylinder body are sealed. Since the space between the cylinders is sealed with a seal cylinder, the cosmetic is sealed and stored in the container, and the volatile components are reliably prevented from being released to the outside.
[0014]
When the cap body is removed and the receiving tray body is moved up and down relative to the inner cylinder body so that cosmetics can be taken in and out of the inner cylinder body, the sealing state between the outer cylinder body and the inner cylinder body by the seal cylinder is changed. Since it is maintained, an increase / decrease change in the pressure in the outer cylinder occurs due to an increase / decrease change in the volume of the inner space of the outer cylinder accompanying the up-and-down displacement of the cosmetic.
[0015]
When the pressure in the outer cylinder changes or changes, and a pressure difference occurs between the inside and outside of the outer cylinder, the valve function provided on the seal plate is opened according to this pressure difference, and the outer cylinder The pressure difference generated between the inside and the outside is eliminated, and the pressure in the outer cylinder is made approximately equal to the atmospheric pressure.
[0016]
In the invention according to the second aspect, the valve function part in the invention according to the first aspect is constituted by a cut line which is a simple cutting line provided at the center part of the sealing plate made of an elastic material. The opening and closing operation is performed by elastic deformation of the whole plate, and the structure makes it very easy to attach the valve function part to the seal plate, and the cost required for manufacturing the seal plate having the valve function part can be sufficiently reduced. .
[0017]
In the invention according to claim 3, since the valve function part in the invention according to claim 1 is configured by a combination of a pair of check valves in the reverse direction, when positive pressure is generated in the outer cylinder, When the check valve is open and the air in the outer cylinder is exhausted, and negative pressure is generated in the outer cylinder, the other check valve is opened and air is sucked into the outer cylinder. Therefore, it is possible to suppress the occurrence of a pressure difference between the outer cylinder body and the outside, and because of its structure, the sealed state is stably and reliably maintained, and the pressure difference value for switching from the closed state to the open state is set. It can be set accurately.
[0018]
According to a fourth aspect of the present invention, there is provided an inner cylinder body for a seal cylinder that is tightly and immovably assembled to the outer cylinder body. Since this is achieved by locking the integrally formed locking ridge from below, the tight sliding contact of the seal cylinder with the outer peripheral surface of the inner cylinder is achieved and maintained firmly and stably, thereby the outer cylinder of the inner cylinder. Assembling that is freely displaceable and cannot be removed can be stably maintained in a state in which a high sealing property between the outer cylinder and the inner cylinder is ensured.
[0019]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows an overall longitudinal section with a cap body 26 mounted in a state in which the saucer body 23 is positioned at the lower limit on the right half and the saucer body 23 is positioned at the upper limit on the left half. 1 includes a screw cylinder 2, an outer cylinder 4, a seal plate 7, a mounting cylinder 12, and a seal cylinder 16.
[0020]
The screw cylinder 2 has two thread grooves 3 engraved on the inner peripheral surface thereof over the entire height range, and the outer cylinder 4 that is fixedly fitted and fixed to the screw cylinder 2 is larger than the screw cylinder 2. And a filling port 6 is formed by surrounding an inner flange-shaped bottom rod 5 at the lower edge of the lower end surface of the screw tube 2. As a result of the ultrasonic welding, the fixed assembly of the screw cylinder 2 is achieved.
[0021]
The mounting cylinder 12 has a configuration in which an outer flange-like flange 14 is provided around the upper end of the outer peripheral surface of the assembled cylinder part 15 that is fitted and fixed to the upper end opening of the outer cylinder 4, and the assembled cylinder part 15 is extended upward. The detachable tube portion 13 that forms the mounting function portion is erected, and a ridge protruding from the lower surface portion of the flange 14 that contacts the upper end surface of the outer tube 4 is ultrasonically applied to the upper surface of the outer tube 4. By welding, the outer tube 4 is fixedly assembled, and a gap is formed between the lower end surface of the assembled tube portion 15 and the upper end surface of the screw tube 2.
[0022]
The seal cylinder 16 made of an elastic material is fitted and assembled in the assembled cylinder portion 15 of the mounting cylinder 12, and a collar piece 17 provided around the lower end of the assembled cylinder portion 15 in the form of an outer collar is attached to the assembled cylinder portion 15. Is positioned in the gap between the lower end surface of the screw tube 2 and the upper end surface of the screw tube 2 and is firmly sandwiched between the assembled tube portion 15 and the screw tube 2, whereby the flange 17 is attached to the mounting tube 12. Achieving and maintaining close contact, and abutting the lower end of the inner peripheral surface of the seal cylinder 16 against the outer peripheral surface of the inner cylinder 18 achieves and maintains close contact with the outer peripheral surface of the outer casing 4 of the flange piece 17. .
[0023]
The inner cylinder 18 has a height substantially equal to that of the screw cylinder 2, and a guide cylinder portion 20 which is a lower half provided with a pair of vertically long guide holes 21 over the entire height range thereof is rotatable in the screw cylinder 2. The inner cylinder body is engaged with the lower end edge of the seal cylinder 16 from below at the boundary portion with the storage cylinder portion 19 which is the upper half having the upper end opening portion obliquely cut off, that is, the central portion. 18 has a configuration in which a locking ridge 22 is provided so as to achieve a non-removable assembly with respect to the outer cylindrical body 1, but since the inner cylindrical body 18 is made of metal, the locking ridge 22 is It is formed by bending with a pressure roller.
[0024]
The saucer body 23 formed in a simple cylindrical shape has an integral threaded projection piece 24 facing the both guide holes 21 and both screw grooves 3 at the lower end portion of the outer circumferential surface, and at the upper portion of the inner circumferential surface. A plurality of holding projecting pieces 25 are provided to firmly and stably achieve and maintain the assembly of the cooled and solidified cosmetic A with respect to the receiving body 23.
[0025]
A cap body 26 having a top cylindrical shape that is detachably fitted to the detachable cylinder portion 13 of the mounting cylinder 12 at the lower end opening portion is closely attached to the upper end opening portion of the storage cylinder portion 19 of the inner cylinder body 18. A sealing cap piece 27 made of a soft material having a cylindrical shape that fits externally is fixedly fixed in the interior so that a tight seal of the feeding container body is made stronger, and a set of the cap body 26 when mounted. The posture is made stable.
[0026]
The sealing plate 7 that is adhered to the bottom rod 5 of the outer cylinder 4 and seals the filling port 6 is provided with the valve function unit 8 integrally. In the embodiment shown in FIG. The entire plate 7 has a flat structure made of a relatively thick elastic material, and the valve function portion 8 is configured by cutting and forming a cut line 9 linearly at the center of the seal plate 7.
[0027]
In the case of the embodiment shown in FIG. 3, when a pressure difference is generated between the inside and outside of the outer cylindrical body 1, the entire sealing plate 7 made of an elastic material is elastically deformed, and the cut 9 is formed by the elastic deformation of the sealing plate 7. Open and let air through.
[0028]
4 and 5 show the configuration of another embodiment of the valve function portion 8 provided on the seal plate 7. A pair of vent holes 10 are opened in the center of the seal plate 7, One side of the vent hole 10 on the side surface and the other side of the seal plate 7 with respect to the other vent hole 10 cover the entire opening of each vent hole 10 and shake the thin plate-like valve piece 11 made of an elastic material. The valve function unit 8 is configured to be freely displaceable.
[0029]
In the case of the embodiment shown in FIGS. 4 and 5, when a pressure difference is generated between the inside and outside of the outer cylindrical body 1, either one of the valve function parts 8 is opened according to this pressure difference to allow air to pass therethrough. Although the difference is eliminated, the pressure difference at which the valve function unit 8 is opened can be arbitrarily and accurately set by the elasticity of each valve piece 11, so that the sealing performance is deteriorated due to the open / close operation. Can be prevented.
[0030]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be obtained.
The seal plate that closes the filling port of the outer cylinder body according to the pressure difference between the outer cylinder body and the outside while maintaining a high sealing performance between the outer cylinder body and the inner cylinder body in the bottom-filling type feeding container Since the valve function part that opens and closes is provided, even if a pressure change occurs in the outer cylinder during the cosmetics loading / unloading operation, this pressure change can be immediately extinguished by the opening / closing operation of the valve function part. The operation of putting in and out the material can be achieved smoothly and suitably.
[0031]
Since no positive pressure is generated and remains in the outer cylinder during the cosmetic feeding operation, after the cosmetic feeding operation, the saucer body rises improperly with the cap body attached, There is no danger of generating a “push”, and a safe use situation can be obtained.
[0032]
When not in use, when there is no pressure difference between the inside and outside of the outer cylinder, the valve function part of the seal plate is securely kept closed, so the hermetic seal of the entire container is not deteriorated, and the container has high sealing performance. Can be fully exhibited.
[Brief description of the drawings]
FIG. 1 is an overall vertical sectional view showing a non-use state of an embodiment of the present invention divided into a left side and a right side when extended;
2 is an enlarged half vertical 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 longitudinal sectional view showing another embodiment of the seal plate.
5 is an overall plan view of the embodiment shown in FIG. 4. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1; Outer cylinder 2; Screw cylinder 3; Screw groove 4; Outer cylinder 5; Bottom gutter 6; Filling port 7; Sealing plate 8; Valve function part 9; Break 10; Vent 11; Valve piece 12; Detachable tube portion 14; flange 15; assembled tube portion 16; seal tube 17; flange 18; inner tube body 19; storage tube portion 20; guide tube portion 21; guide hole 22; 24; screw projection piece 25; holding projection piece 26; cap body 27; seal cap piece A; cosmetics

Claims (4)

The upper part is formed with a mounting function part, and a screw groove (3) is formed on the inner peripheral surface, and the lower end is sealed with a sealing plate (7). ) And a cylindrical outer cylinder (1) that opens and an upper half of the storage cylinder (19) that also functions as a mold surface for the cosmetic (A) are extended to form a vertically elongated guide hole (21). A cylindrical inner cylinder (18) that is inserted into the outer cylinder (1) so that the lower half guide cylinder (20) is inserted and is rotatable and cannot be removed, and the outer cylinder (1 ) And a sealing cylinder (16) made of an elastic material that makes the inner peripheral surface closely slidably contact the outer peripheral surface of the inner cylindrical body (18), and the guide hole ( A cylindrical receiving body (23) that is assembled so as to be able to be moved up and down in the inner cylindrical body (18) by projecting a threaded projecting piece (24) that penetrates the threaded groove (3) through 21) The outer cylindrical body (1) is attached to and detached from the mounting function part, and the upper end opening of the inner cylindrical body (18) is sealed. And a valve function part (8) that opens and closes according to a pressure difference between the inside and the outside of the outer cylinder (1). Bottom-filling type feeding container. The bottom-filling type payout according to claim 1, wherein the sealing plate (7) is formed of an elastic material, and a linear cut (9) is provided at the center of the sealing plate (7) to constitute the valve function portion (8). container. The bottom-filling type feeding container according to claim 1, wherein at least a pair of check valve structures in opposite directions are provided at the center of the seal plate (7) to constitute the valve function part (8). A locking ridge (22) is provided on the outer peripheral surface of the central portion, which is the boundary between the storage cylinder (19) of the inner cylinder (18) and the guide cylinder (20), and the locking ridge ( 22) is tightly slidably locked from below to the lower end edge of the inner peripheral surface of the seal cylinder (16) that is tightly and immovably assembled to the outer cylinder (1), thereby the inner cylinder (18 4. A bottom-filling type feeding container according to claim 1, 2 or 3, wherein assembly of the non-disengagement from the outer cylinder (1) is achieved.

Images