JPH056895Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is a bar-shaped cosmetic product that is structured so that bar-shaped cosmetic products such as lipstick can be delivered and stored by a simple rotational movement using a threaded structure. This relates to the structure of a cap attached to a dispensing container for cosmetics, and its purpose is to firmly and reliably maintain the sealing of the dispensing container.

[Conventional technology]

Recent bar-shaped cosmetics contain large amounts of volatile components, including fragrances, to make it easier to apply the cosmetics and to provide a refreshing feeling when the cosmetics are in use. is becoming increasingly used.

Naturally, storage containers for bar-shaped cosmetics that contain large amounts of volatile components must have sufficiently high airtightness to prevent the volatile components contained in the bar-shaped cosmetics stored therein from unintentionally dissipating. I have to have it.

However, this type of storage container for stick-shaped cosmetics is constructed by screwing together a part that holds the cosmetics and a part that stores the cosmetics, and the cosmetics are inserted and removed by relative rotation between the holding part and the storing part. Therefore, it is inappropriate for the cap that is assembled to open and close the container, which is a dispensing container for this stick-shaped cosmetic, to be screwed onto the container, and as a result, it is assembled by simply fitting it into place.

[Problem that the invention attempts to solve]

As described above, the means for assembling the cap to the container to open and close the container was limited to simple fitting, making it difficult to seal the container with the cap. Even if it were possible to do so, it was extremely difficult to keep the container airtight with this cap for a long period of time.

In order to solve the above problems, the applicant
First, we proposed a cap for dispensing containers that had a sealing body built into the cap body (Utility Application 1983-
No. 129386 (Jikkoi 1-5545)).

This invention has a configuration in which the valve piece disposed around the lower end of the seal body comes into close contact with the inner circumferential surface of the cap body to form a check valve structure, and can fully meet the above requirements. However, since the upper end of the container is tightly fitted into the seal body, it must be easy to assemble, and it must also ensure sealing with the inner circumferential surface of the cap body. In other words, there remains dissatisfaction in that the contradictory requirements of ease of assembly and reliability of sealing must be resolved with a single sealing body.

In addition, since the valve piece must be in close contact with the entire inner circumference of the cap body, the seal body itself has a certain size, which makes it difficult to ensure molding dimensional accuracy. This caused a problem in sealing performance.

The problem with this conventional example is that it is configured so that the function of sealing the upper end opening of the container and the check valve function are performed in a single member, but the above-mentioned hermetic seal function and check valve function are completely independent. There is no need to demonstrate both functions in unison.

Therefore, in the present invention, the part that performs the function of hermetically sealing the upper end opening of the container and the part that performs the check valve function are constructed as separate members, thereby achieving a more reliable and stable hermetic seal function and check valve function. The technical challenge is to demonstrate the valve function.

[Means to solve the problem]

Hereinafter, the present invention will be described with reference to drawings showing embodiments of the present invention.

The dispensing container cap according to the present invention has a part for holding a bar-shaped cosmetic such as a lipstick, and a part for storing the cosmetic, which are screwed together so as to be rotatable with each other.
The cap 1 is detachably assembled to a container 25, which is a dispensing container for loading and unloading cosmetics from the storing part by relative rotation between the holding part and the storing part.

This cap 1 consists of a main body 2, which has a top plate 4 integrated with the upper end of a linear cylinder-shaped cylinder 3 that can be assembled in a crown shape to a storage cylinder 26 that constitutes a storage part of a container 25; A top wall 7 is connected to the top end of the cylindrical wall 6, which has a short cylindrical shape that can be firmly fitted and assembled into the top end of the storage tube 26, and into which the top end of the storage tube 26 can be tightly fitted, and communicates with the top surface of the top wall 7. A fitted body 5 in which a short cylindrical communicating tube 8 having a hole 10 is erected
and a valve piece 20 having a check valve structure that is tightly assembled to the communication tube 8 and can close the communication hole 10.
A seal body 19 made of an elastic material is provided in a part thereof.

An air passage is formed between the fitting body 5 and the main body 2.

That is, although the fitting body 5 is fitted and assembled into the inner upper end portion of the main body 2, the communication cylinder 8 is provided upright on the top wall 7 of the fitting body 5, so that the top wall 7 of the fitting body 5 and the main body are connected. A space is formed between the main body 2 and the top plate 4, and the main body 2 is assembled and maintained with a certain passage formed between it and the main body 2 by this space and the above-mentioned air passage.

The cylindrical wall 6 of the fitting body 5 is set to a height that allows the upper end of the storage tube 26 to enter the cylindrical wall 6 to some extent when the cap 1 is mounted on the container 25. This provides a high degree of sealing between the cylinder wall 6 and the storage cylinder 26.

[Effect]

Since the cap 1 according to the present invention has the above-described structure, when the cap 1 is assembled to the container 25 in which a bar-shaped cosmetic is stored in a crown shape, the upper end of the storage tube 26 is connected to the cylindrical wall of the fitting body 5. The housing cylinder 26 and the fitting body 5 are in close contact with the lower end of the housing cylinder 26 over its entire circumference, thereby achieving a seal between the housing cylinder 26 and the fitting body 5.

If the cap 1 is further assembled into the container 25 in this state, the storage cylinder 26 will fit into the cylinder wall 6 while maintaining close contact with the cylinder wall 6. The volume of the space formed between the storage cylinder 26 and the fitting body 5 is reduced, and the air in this space is compressed.

The compressed air in the space formed between the storage tube 26 and the fitting body 5 flows through the communication hole 10 of the communication tube 8 of the fitting body 5 through the seal that is tightly fitted and assembled into the communication tube 8. The valve piece 20 of the body 19 is pushed out and pushed out into the space formed between the top wall 7 of the fitted body 5 and the top plate 4 of the main body 2. It flows out through the air passage.

When the compressed air in the space formed between the storage tube 26 and the fitting body 5 is discharged and the pressure in the space reaches approximately atmospheric pressure, the valve piece 20
Due to its elasticity, it comes into close contact with the communicating tube 8 and closes the communicating hole 10, thereby sealing this space, that is, the container 25. In other words, the valve piece 20 functions as a check valve to prevent air from flowing in and out of the space, thereby maintaining the space hermetically sealed.

In this case, since the fitting body 5 and the sealing body 19 are separate objects, it is sufficient that the fitting body 5 has a structure that smoothly guides the housing tube 26 and fits tightly thereinto.
In addition, a material that reliably achieves the above state is selected, whereas the seal body 19 is
It is sufficient to select a material that allows for smooth operation, does not require a structure for assembly with the main body 2, and has a structure that can reliably close only the communication hole 10.

In particular, the seal body 19 here is tightly assembled to the communication tube 8, and since the valve piece 20 is an extremely small part compared to the whole, it is necessary to maintain high dimensional accuracy when molded with a predetermined resin. It is possible to achieve extremely high sealing accuracy and a highly effective sealing effect.

As mentioned above, cap 1 allows container 25 to be
If the container 25 is kept airtight, the volatile components of the bar-shaped cosmetic stored in the container 25 will be prevented from dissipating.

The container 25 is sealed by the cap 1 using the valve piece 20.
In addition to closing the communication hole 10 due to close contact with the communication cylinder 8, this is achieved by tightly fitting the storage cylinder 26 into the cylinder wall 6. Since there is no fear of it slipping out of the system, it is held stably and firmly.

That is, mechanically, the assembly of the cap 1 to the container 25 is relatively firmly held by tightly fitting into the cylinder wall 6 of the storage tube 26 of the container 25, so that other articles cannot be attached. The attachment of the cap 1 to the container 25 will not be deteriorated due to contact with the container or external vibrations, etc., and the container 25 can be kept tightly sealed.

Furthermore, since the compressed air in the space formed between the storage cylinder 26 and the cylinder wall 6 is smoothly discharged through the valve piece 20, the cap 1 can be assembled into the container 25 smoothly. Therefore, there is no possibility that the compressed air in the space described above would deteriorate the strength of the assembly of the cap 1 to the container 25.

〔Example〕

First, the embodiment shown in FIGS. 1 to 3 will be explained.

The communication tube 8 here is erected at the center of the upper surface of the top wall 7, and an inner flange 11 is provided around the upper end of the communication tube 8 to form the above-mentioned communication hole 10, and the outer peripheral surface of the communication tube 8 is locked. Article 12 is provided around the circumference.

Further, the seal body 19 is a cylindrical body with a top that is tightly fitted and assembled into the communicating cylinder 8, and is assembled so that the cylinder piece 21 bites into the locking strip 12 of the communicating cylinder 8. A top plate 22 in which a valve piece 20 is notched and forms a check valve structure in close contact with the upper end surface of the communicating cylinder 8 is integrally connected to the upper end of the cylinder piece 21.

Therefore, when the above-mentioned cap 1 is attached to the container 25, when the volume of the space formed between the storage cylinder 26 and the fitting body 5 is reduced and the air in this space is compressed, This air pushes up the valve piece 20 of the seal body 19 that is tightly fitted and assembled to the communication cylinder 8 through the communication hole 10 of the communication cylinder 8 of the fitting body 5, and the top wall 7 of the fitting body 5 and the top plate 4 of the main body 2.

The circumference on the upper surface of the top wall 7 sandwiching the communication tube 8 is designed so that a space is formed in which the valve piece 20 of the seal body 19 that is tightly fitted and assembled into the communication tube 8 can open and close. A pair of stopper pieces 13 are provided upright at the ends. However, since this stopper piece 13 only needs to ensure the opening/closing movement of the valve piece 20 described above, the stopper piece 13 may be configured to hang down at the same position on the lower surface of the top plate 4 of the main body 2. It's okay if it's hot.

In other words, the space formed between the top wall 7 of the fitting body 5 and the top plate 4 of the main body 2 as described above is secured by the stopper piece 13 here.

Next, the embodiments shown in FIGS. 4 to 6 will be described.

The communication cylinder 8 here is erected at the center of the upper surface of the top wall 7, has a short cylinder shape with the above-mentioned communication hole 10 opened in the peripheral wall 9, and has a top plate connected to the upper end of the peripheral wall 9. , the communication hole 10 described above at the upper end of the peripheral wall 9,
Further, a locking groove 14 is provided around the outer peripheral surface of the lower end.

The seal body 19 is a cylinder that is tightly fitted and assembled to the outer circumferential surface of the peripheral wall 9 of the communication cylinder 8, and the cylinder piece 21 is connected to the thin valve piece 20 in the upper half and the thin valve piece 20 in the lower part. When the valve piece 20 is assembled to the outer circumferential surface of the circumferential wall 9 of the communication tube 8, the valve piece 20 is
The communication hole 10 is closed, and the fixing piece 23 is engaged with the engagement groove 14 of the peripheral wall 9 to achieve fixation. Therefore, as described above, the valve piece 20 is elastically deformed when the compressed air in the space formed between the storage cylinder 19 and the fitting body 5 is discharged, or due to its elasticity, the valve piece 20 is deformed by the communication cylinder 8. In close contact with the outer periphery of the peripheral wall 9,
It acts like a check valve to close the communication hole 10.

Since the seal body 19 here only needs to be in a simple cylindrical shape, strict dimensional accuracy is not required, and since it is closely assembled to the outer circumferential surface of the communication tube 8, It has extremely high accuracy and can provide a high sealing effect.

Furthermore, in this embodiment, as in the previous embodiment, a pair of stopper pieces 13 are provided to form a space that allows the valve piece 20 to be reliably pushed out in a predetermined state. It is erected.

Next, the embodiments shown in FIGS. 7 to 9 will be explained.

Here, the above-mentioned communication hole 10 is opened in the top wall 7 of the fitting body 5, and this communication hole 10 is surrounded.
A short cylindrical communicating tube 8 is provided upright in the center of the upper surface of the top wall 7, and a plurality of notches 1 are provided at the upper end of the communicating tube 8.
In addition to the communication hole 10, a fixing hole 18 is formed in the top wall 7 at the center of the communication cylinder 8.

The seal body 19 is fitted into the fixing hole 18 of the top wall 7 at the central lower end of a dish-shaped valve piece 20 that tapers upward and whose peripheral edge closely contacts the inner circumferential surface of the communication tube 8. It has a structure in which leg pieces 24 that are assembled together are hung down.

Therefore, when the cap 1 is attached to the container 25, when the volume of the space formed between the storage cylinder 26 and the fitting body 5 is reduced and the air in this space is compressed, this air Push up the peripheral end of the valve piece 20 of the seal body 19 that is in close contact with the inner peripheral surface of the communication cylinder 8 through the communication hole 10 of the communication cylinder 8 of the fitting body 5, and fit it from the notch 15. It will be pushed out into the space formed between the top wall 7 of the assembly 5 and the top plate 4 of the main body 2, and the valve piece 20 will function as a check valve.

Next, the configuration common to each of the above embodiments will be described below.

That is, a communication groove 16 is provided along the axial direction on the outer circumferential surface of the cylindrical wall 6 of the fitting body 5, and a thin-walled cylinder 17 having an outer diameter smaller than the outer diameter of the cylindrical wall 6 is provided hanging from the lower end of the cylindrical wall 6. The above-mentioned air passage is formed when the cap 1 is fixed within the upper end of the cylindrical body 3.

Further, the container 25 in the illustrated embodiment is configured such that the opening of the cap 1 is fitted into a cylindrical piece that is an extension of the knob 28 that is a part of the part that holds the cosmetic bar. A plurality of protrusions 27 for holding the cap 1 in place are protruded from the cylindrical portion to which the cap 1 is assembled.

Therefore, with the cap 1 removed, the storage tube 26 can be picked up with the fingers of one hand, and the grip part 22 can be picked up with the fingers of the other hand and rotated in opposite directions. This involves taking in and out the bar-shaped cosmetics that are inside the area.

[Effect of idea]

As is clear from the above description, the cap according to the present invention is capable of tightly sealing the entrance and exit of cosmetics in the dispensing container, and is also capable of strongly maintaining this sealed state, and furthermore, the cap according to the present invention is capable of tightly sealing the entrance and exit of cosmetics in the dispensing container. Assembling can be accomplished smoothly, and since the sealing body and fitting body made of elastic material and having a simple structure are simply inserted and assembled into the main body, the structure is simple and easy to assemble. Since the sealing body and the fitting body are molded as separate bodies, the sealing body and the fitting body are molded as separate bodies, so each function can be fully demonstrated, and has many excellent effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the structure of a seal body and a fitting body in one embodiment of the present invention. FIG. 2 is a longitudinal sectional view showing an embodiment of the present invention constructed using the seal body and fitting body shown in FIG. 1. FIG. 3 is an enlarged vertical cross-sectional view of a main part showing the assembled structure of the seal body and fitting body shown in FIG. 1. FIG. 4 is a perspective view showing the structure of a seal body and a fitting body in another embodiment of the present invention. FIG. 5 is a longitudinal sectional view showing another embodiment of the present invention constructed using the seal body and fitting body shown in FIG. 4. FIG. 6 is an enlarged longitudinal cross-sectional view of a main part showing the assembled structure of the seal body and fitting body shown in FIG. 4. FIG. 7 is a perspective view showing the structure of a seal body and a fitting body in still another embodiment of the present invention. FIG. 8 is a longitudinal sectional view showing another embodiment of the present invention constructed using the seal body and fitting body shown in FIG. 7. FIG. 9 is an enlarged vertical cross-sectional view of a main part showing the assembly structure of the seal body and fitting body shown in FIG. 7. Explanation of symbols, 1...Cap, 2...Body, 3
... Cylinder body, 4 ... Top plate, 5 ... Fitting body, 6 ... Cylinder wall, 7 ... Top wall, 8 ... Communication cylinder, 9 ... Peripheral wall, 1
0... Communication hole, 11... Inner flange, 12... Locking strip,
13...stopper piece, 14...locking groove, 15...
... Notch, 16 ... Communication groove, 17 ... Thin wall tube, 18
... Fixed hole, 19 ... Seal body, 20 ... Valve piece,
21...Cylinder piece, 22...Top plate, 23...Fixing piece,
24... Leg piece, 25... Body, 26... Storage tube,
27... protrusion, 28... knob.

Claims (1)

[Scope of utility model registration request] A part that holds a bar-shaped cosmetic such as a lipstick and a part that stores the cosmetic are screwed together so that they can rotate freely, and the cosmetic is stored in the storage by relative rotation of the holding part and the storing part. The cap 1 is detachably assembled to a container 25 which is a feeding container that is taken in and taken out from a portion where the container 2
The cylinder body 3 has a linear cylinder shape that can be assembled in a crown shape to the storage cylinder 26 constituting the storage part of No. 5.
A main body 2 having a top plate 4 integrated at the upper end thereof;
A top wall 7 is connected to the top end of the cylindrical wall 6, which has a short cylindrical shape that can be firmly fitted and assembled into the inner top end and into which the top end of the storage tube 26 can be tightly fitted, and a communication hole is provided in the top surface of the top wall 7. 10, and a valve piece 20 that is tightly assembled to the communication tube 8 and has a check valve structure capable of closing the communication hole 10. A cap for a dispensing container, which has a seal body 19 made of an elastic material provided in a part thereof, and an air passage is formed between the fitting body 5 and the main body 2.