JP4949751B2 - Cosmetic applicator - Google Patents

Description

The present invention relates to a liquid applicator, and more particularly to a liquid applicator for cosmetics, chemicals, etc., and a writing instrument in which an application member and a valve body are attached to a container mouth for applying an internal solution in a container.

Conventionally, there has been known a liquid applicator that has an application part such as a brush shape and manually secures and interrupts conduction between the container and the application part (for example, Patent Documents 1 and 2).
In addition, the present applicant has proposed a liquid applicator that is provided with a cap body in the liquid applicator to improve the convenience of the user and that opens and closes the valve body by attaching and detaching the cap (Patent Documents 3 and 4).
Furthermore, an applicator is also known in which the applicator and the valve body are configured to cooperate with each other so that the applicator can be opened and closed by attaching and detaching the cap body and at the same time the valve body can be opened and closed simultaneously (Patent Document 5). 6). However, in these inventions, when the cap body is fitted, the pressing portion provided on the cap body contacts and presses the application portion, so that there is a problem that a soft and delicate application body such as a brush cannot be used. is there. Furthermore, in the applicators exemplified in these documents, the cap body is only cut off from the outside by screwing of the cap body, and the so-called sealing property for suppressing the drying of the application part is not considered. It is.
By the way, there has been proposed an applicator that can form seal portions at a plurality of locations by bringing the applicator part into and out of contact with the applicator part and the cap body without attaching the cap body (Patent Documents 7 and 8). However, these applicators are not provided with a valve body, and the flow path of the liquid is not closed by fitting the cap body, so that condensation of liquid vapor into the cap or the contained liquid itself Problems such as storage in the cap are likely to occur. Furthermore, in the invention of these applicators, no consideration is given to the pressure increase inside the container due to the immersion of the applicator.
Japanese Utility Model Publication 57-184882 JP-A-2005-67627 JP-A-8-38982 JP-A-8-275821 49-34443 Shokai 59-55540 JP 11-155631 A JP-A-11-155633

In consideration of the above-described problems, the present invention is a liquid container that discharges liquid from the inside of the container body to the flexible application portion through the valve body. By removing the cap body, the valve body is opened, and the liquid can be easily discharged. To provide a liquid container with good sealing properties that can be discharged, and further closes the valve body when the cap body is fitted, but the pressure in the container does not rise easily, and suppresses the drying property of the application part. With the goal.

In order to solve the above problems, the present invention provides, as a liquid container, (1) a container body that has a bottomed cylindrical shape and contains liquid therein, and a discharge port that is fixed to the front opening of the container body and discharges the liquid. A front shaft portion provided with the front shaft portion, and a slidable, rotatable, and non-detachable fit to the front shaft member, and forwardly moved by the elastic member. The energized application unit guide, the application unit guide fixed behind the sealing unit that forms a valve body together with the discharge port of the front shaft unit, and the liquid discharged from the discharge port forward A main body comprising: a joint portion provided with a communication hole that can be transported to the front portion; and an application portion that is fixed to the front portion of the joint portion and fixed to the application portion guide and that exudes the liquid transported from the communication hole of the joint portion; Cover the front part of the main body and the application part, and screw onto the front shaft member A cylindrical cap body with a bottom, wherein the cap body includes a pressing portion capable of pressing the application portion guide of the main body backward, and the pressing portion includes a liquid container extending to the cap body opening. adopt.
By adopting this container, when the cap body is screwed into the container body, the sealing part is pressed by the pressing part of the cap body, the valve body is closed, and the flexible application part is protected. When the screw is unscrewed to remove the body, the rotation action is transmitted to the valve body through the pressing part. When the liquid is dried and the solid content of the liquid is solidified, the valve body is opened by the rotation of the sealing part. When the cap body is opened, the valve body is completely opened. In this state, when the liquid is pushed out from the container body, the liquid leaks to the application part through the communication hole. When the cap body is screwed, the valve body is closed while rotating in accordance with the movement of the pressing portion of the cap body, and is completely closed by fitting the cap body.

(2) The liquid container according to (1), in which one or more rib bodies are provided in the direction of the main body and inward in the contact portion of the pressing portion of the cap body to the application portion guide.
According to this invention, in addition to the function described in (1), the action of the rib body of the contact portion to the cap body application portion guide is added, so that the rotation operation when unscrewing to remove the cap body is performed. However, it is transmitted to the valve body through the pressing part and the rib body, and when the liquid is dried and the solid content of the liquid is solidified, the valve body can be opened by the rotation of the sealing body. A liquid container is provided.

(3) The liquid container according to (1), wherein one or more rib bodies are provided in a direction of the cap body and outward in a contact portion of the application section guide to the pressing portion of the cap body.
According to this invention, in addition to the function described in (1), the action of the rib body of the contact portion to the pressing portion in the cap body of the application portion guide is added, so that the screwing is released in order to remove the cap body. When the rotating operation is transmitted to the sealing body through the pressing part and the rib body, and the liquid is dried and the solid content of the liquid is solidified, the valve body can be opened by the rotation of the sealing body. A liquid container in which this action is further ensured is provided.

(4) The liquid container according to (1), further including a tubular communication part between the communication hole of the joint part and the application part.
According to this invention, in addition to the function described in (1), after the liquid leaked from the valve body reaches the joint part communication hole, the liquid is reliably transported to the application part through the tubular communication pipe. A liquid container is provided.

(5) The liquid container according to (1), wherein the container body is made of a flexible resin and has a bottomed cylindrical shape or a tube shape.
According to this invention, in addition to the function described in (1), when the cap is opened (that is, when the valve body is opened and the inside of the container body and the liquid discharge port of the application unit communicate with each other), When pressed by a method such as the above, a liquid container is provided in which the stored liquid is pushed out to the application section.

(6) The liquid container according to (1), wherein a contact portion between the pressing portion of the cap body and the application portion guide constitutes a seal portion.
According to this invention, in addition to the function described in (1), when the cap body is screwed into the main body, the application portion guide is biased toward the pressing portion of the cap body by the elastic body, and these members Thus, a liquid container is provided in which the sealing is surely performed and the liquid (mainly the solvent) contained therein can be prevented from evaporating from the application part or the valve body.

(7) The liquid container according to (1), wherein the pressing portion of the cap body and the tip shaft portion are in contact with each other, and the contact portion forms a seal portion.
According to the present invention, in addition to the function described in (1), when the cap body is screwed into the main body, the contact portion is configured between the front shaft portion and the cap body, and the members are securely sealed by these members. And a liquid container capable of preventing evaporation of the contained liquid (mainly its solvent) from the application section and the valve body is provided.

(8) The liquid container according to (1), wherein a stroke caused by screwing between the cap body and the front shaft portion causes a pressure increase in the container to be 3000 mPa or less.
According to the present invention, in addition to the function described in (1), there is little increase in pressure in the container when the cap is fitted, and the liquid stored when the cap is opened is ejected or leaked during storage. A liquid container that is unlikely to occur is provided.

Since this invention is comprised as mentioned above, there exists the following effect.
When the cap body is screwed into the container body, the valve body is pressed by the pressing part of the cap body, the valve body is closed and the flexible application part is protected, and the screw body is unscrewed to remove the cap body. When the rotating motion is transmitted to the valve body through the pressing part and the liquid is dried and the solid content of the liquid is solidified, the valve body can be opened by the rotation of the valve body, and the cap body is opened. The valve body is completely open. In this state, when the liquid is pushed out from the container body, the liquid leaks to the application part through the communication hole. When the cap body is screwed, the valve body is closed while rotating in accordance with the movement of the pressing portion of the cap body, and is completely closed by fitting the cap body.

When a rib body is provided at the contact portion of the pressing portion of the cap body to the application portion guide, the rotation operation when unscrewing to remove the cap body is more reliably transmitted to the valve body through the pressing portion and the rib body. When the liquid is dried and the solid content of the liquid is solidified, the valve body can be opened by the rotation of the valve body. Moreover, the same effect can be obtained when one or more rib bodies are provided in the contact portion of the coating portion guide with the pressing portion of the cap body, and if both rib bodies are provided, the solid content can be more reliably solidified. Can be destroyed.

If a tubular communication part is further provided between the joint part communication hole and the application part, the liquid leaked from the valve body reaches the joint part communication hole and then reliably applied through the tubular communication pipe. Liquid is transported to the part.

Although not specifically described in the claims, the application part is a soft and delicate application part, that is, the application part is a brush, a porous and soft so-called sponge-like application, or a flexible bowl-like application. Part. Soft and delicate application part, that is, the application part is a brush, porous and soft so-called sponge-like, flexible hook shape, etc. In addition, the valve body built in the user can be opened and closed only by removing the cap.

If the container body is made of a flexible resin and has a bottomed cylindrical shape or a tube shape, the user opens the cap (that is, the valve body is opened, and the liquid discharge port in the container body and the application section) If the container body is pressed with a finger or the like when the container is in communication, the stored liquid can be easily discharged to the application part to the application part without being aware of the opening of the valve body. I can do it.

If the contact portion between the pressing portion of the cap body and the application portion guide forms a seal portion, the application portion guide is moved to the pressing portion of the cap body by the elastic body when the cap body is screwed into the main body. It is urged toward the surface, and the sealing is surely performed by these members, and evaporation of the contained liquid (mainly the solvent) can be prevented from the application part and the valve body. In addition, if the pressing portion of the cap body and the front shaft portion are in contact with each other and the contact portion forms a seal portion, sealing is performed regardless of whether the application portion guide is biased by the elastic body. It becomes. Furthermore, when these configurations are combined, sealing can be performed more reliably.

The stroke by screwing between the cap body and the front shaft portion is such that the pressure increase in the container is 3000 mPa or less, so that the pressure in the container is less likely to be raised when the cap is fitted, and when the cap is opened. The stored liquid is less likely to be ejected or leaked during storage. Specifically, the pressing body is not particularly limited as long as it has a shape capable of pressing the application portion guide, and may be an integral part of the cap body or a member fixed to the cap body. Preferably, the cap body may have a multi-cap structure, and the cap body in the innermost layer may be a structure that releases the pressure that rises when the cap body is mounted, and is released by the internal pressure that has been increased by mounting the cap body. Some kind of valve body may be provided.

Next, embodiments of the present invention will be described with reference to the drawings.
In the figure, A is a container body, and in the scope of the present application claims, in the summary, and in the present specification, the direction of the coating part 22 attached to the opening part of the coating container is "front", and the direction of the bottom part of the container body Is “backward”.

Example 1 is shown in FIGS. As shown in FIG. 1 and FIG. 2, the front shaft portion 10 is fitted into the front opening portion of the container A that is sealed at the rear or has a bottom portion, and a cylindrical application portion guide 20 is placed in the front shaft portion. It is slidable back and forth, can be rotated, and cannot fall off. In the present embodiment, the container A employs a flexible container having a bottomed cylindrical shape, but the action itself does not change even in a tube shape or a container having a pushing action by a piston. The front shaft portion 10 includes an elastic member housing portion 13 projecting into the container A (that is, rearward), and a tubular liquid passage 12a-12b (rear opening portion is provided in the inner portion of the elastic member housing portion 13). 12a has a front opening 12b), and includes a liquid passage 12 projecting forward, a sleeve 14 so as to cover the opening of the container A, and an application portion guide accommodating portion 15. Here, the elastic member uses a coil spring 11, and the elastic member housing portion 13 and the liquid passage portion 12 are configured to have a double cylindrical shape so that the coil spring 11 can be accommodated. Yes. The coil spring 11 urges the applicator guide 20 forward, and in this embodiment, a locking outward flange 24 is provided at the rear end of the applicator guide 20, and the front end of the elastic member accommodating portion 13. The locking inward flanges 16 are respectively provided to prevent the application portion guide 20 from dropping off. These flanges may be replaced by undercuts, and in that case, the flanges can be assembled by a slightly strong pressure input, which is industrially advantageous. In the present embodiment, a male screw portion 15 a that is screwed into the cap body is provided on the outer surface of the application portion guide housing portion 15. Further, the application portion guide 20 receives the pressing portion 31 provided in the cap body 30 at any part of the portion hidden in the application portion guide accommodating portion 15, and when the cap body 30 is screwed, the application portion guide. A flange portion 25 that can push down 20 is provided.

An application part 22 and a joint part 21 are fixedly fitted integrally into the cylindrical part of the application part guide 20. In the present embodiment, a brush is used as the application part, and a liquid discharge port 22c is provided behind the brush 22a at the tip. The liquid inflow port from the rear of the application unit is 22b, and the liquid flow passages 22b-22c in the application unit communicate with each other. The joint portion 21 includes a rear opening 21a, a sealing portion 21b, a sealing portion opening 21c, and a front opening 21d. The rear opening 21a is adjusted so that the liquid passages 12a-12b in the front shaft portion 10 are fitted. The opening portion 12b of the liquid flow passage is configured to be sealed by the sealing portion 21b, and a valve chamber is formed around the sealing portion 21b. A sealing portion opening 21c is provided on the front side surface of the sealing portion 21b, and further, a flow passage communicating with the front opening 21d is formed.
The accommodated liquid circulates from the container A to 12a-12b-21a-21c-21d-22b-22c and is transported to the coating unit. In this embodiment, a pipe 23 is further provided between the opening 21d and the liquid inlet 22b. In this pipe 23, the front opening 21 d of the sealing body is fitted in a liquid-tight manner at the liquid inlet 22 b of the application part, and liquid leaks from the gap between the outer surface of the application part 22 and the application part guide 20. If there is no, there is no need, but it is desirable to install the pipe 23 to reduce the possibility of liquid leakage and to ensure liquid transport to the application part. In this example, the application part is a brush, so even if liquid leaks to the side of the application part, there are few problems on the appearance, but rather than the penetration of the application liquid from the periphery, It is desirable to infiltrate, and it is also desirable to provide the pipe 23 as shown in the figure.

Inside the cap body 30, a female screw part 30 a that is screwed with the male screw part 15 a on the outer surface of the application part guide holding part 15 and a pressing part 31 are provided. In this embodiment, the pressing portion 31 has the shape of an inner cap and has a substantially double cap structure as a whole. The so-called “inner cap” opening 31 a of the pressing portion 31 is an application portion guide. It functions to push down the inside of the holding part 15 and the entire application part guide 20 backward. Here, when the female screw portion 30a and the male screw portion 15a of the cap body are screwed together to the end, and the cap body is completely fitted, the sealing portion 21b constituting the valve body and the opening portion 12b are formed. The valve body is sealed as shown in FIG.

Conversely, when the cap body 30 and the front shaft portion 10 are unscrewed and the cap body 30 is removed, the sealing portion 21b constituting the valve body and the opening portion 12b are opened contrary to the above movement, The disc will open.

By the way, when not used for a long time, the solvent of the liquid to be stored evaporates with the valve body closed, and if the solute contains a resin component, it acts as an adhesive substitute, Sometimes the valve body opens. Therefore, in the case of the present application, the sealing portion 21b fixed to the rotatable application portion guide is also rotated by the rotational moment when the cap body 30 and the front shaft portion 10 are unscrewed, and this adhesion is performed. The valve body can be opened by destroying the state. And by pressing the container main body A, it will discharge through the above-mentioned flow path, 12a-12b-21a-21c-21d-22b-22c. By the way, in the present embodiment, the rib body 31 b is further provided on the pressing portion 31 attached to the cap body 30, and the rib body 20 a is provided on the outer surface of the application portion guide 20 and the contact portion with the pressing portion.
By this rib body, the rotation due to the screwing of the cap body 30 is strongly transmitted by the application section guide 20, and the adhesion can be destroyed when the adhesion due to the resin component such as the coating liquid is occurring in the valve body. it can. Even if this rib body is not provided, the adhesion can be broken by the frictional force between the pressing portion 31 and the application portion guide 20, but the present embodiment in which the rib body is provided is more preferable.

Next, although illustration is omitted, in the second embodiment, only the application portion 22 is a sponge-like application portion, and in the third embodiment, the application portion 22 becomes a bowl-like flexible application portion. Only in the point which is different from Example 1.
The liquid container of Example 2 is suitable for application of drugs and the like to the application of cosmetics and the like assumed in Example 1, and the application of a liquid having a viscosity lower than that of the liquid assumed in Example 1 is applied. Is assumed.
The bowl-shaped flexible applicator of the liquid container according to the third embodiment includes a discharge port 22a communicating with the above-described flow path at the rear base portion of the flat surface portion 22b of the bowl-shaped applicator 22, and is discharged from the discharge port 22a. The liquid can be freely applied by the flat portion 22b. The discharge port 22a may have a normal hole-like structure, or may have a slit structure and a structure having a backless function.

In the third embodiment, as described above, it is preferable that the liquid is attached to reduce the possibility of liquid leakage from the gap between the outer surface of the application unit 22 and the application unit guide 20 and reliably transport the liquid to the application unit. In Example 2, since the application part 22 is a sponge-like application part, as in Example 1, there is little influence on the appearance even if liquid leaks to the outer surface. However, also in the case of a sponge-like application part, it is preferable that the application liquid permeates from the periphery, and it is desirable to provide a pipe 23 as shown in the figure.

In the present invention, lip balm, lipstick, other cosmetics, chemicals, etc. are stored in the container as contents, and used as an application tool for cosmetics, chemicals, etc. It can also be used as a viscous liquid application tool.

It is a longitudinal cross-sectional view in the state which removed the cap body in the liquid applicator of Example 1 of this invention. It is a longitudinal cross-sectional view in the state which mounted | wore with the cap body in the liquid applicator of Example 1 of this invention. It is an external view in the state where the cap body in the liquid applicator of Example 1 of the present invention was removed.

Explanation of symbols

DESCRIPTION OF SYMBOLS A ... Liquid container, 10 ... Front shaft part, 11 ... Coil spring, 12 ... Liquid passage part, 13 ... Repellent member accommodation part, 14 ... Front shaft sleeve, 15 ... Application part guide holding part, 16 ... Inside for latching Orientation flange, 20 ... coating portion guide, 21 ... joint portion, 22 ... coating portion, 23 ... pipe, 24 ... locking outward flange, 25 ... flange portion, 30 ... cap body, 31 ... pressing portion

Claims (8)

A container body containing a liquid in a cylindrical shape with a bottom;

Fixed to the front opening of the container body,
A tip portion having a discharge port for discharging the liquid;

An elastic member housed in the front shaft portion;

Fitted to the front shaft member so that it can slide, rotate, and cannot fall off,
An application portion guide biased forward by the elastic member;

Fixed behind the application section guide,
A sealing part that forms a valve body together with a discharge port of the front shaft part on the rear side,
A joint portion having a communication hole capable of transporting the liquid discharged from the discharge port forward;

The joint portion is forward and fixed to the application portion guide,
An applicator that exudes the liquid transported from the communication hole of the joint.

The body,

A bottomed cylindrical cap body that covers the application part, forward of the main body, and screwed to the front shaft member,

The cap body includes a pressing portion capable of pressing the application portion guide of the main body backward, and the pressing portion extends to the cap body opening.

Liquid container.
In the contact part to the application part guide of the pressing part of the cap body,
The liquid container according to claim 1, wherein one or more rib bodies are provided in the direction of the main body and inward.
In the contact part to the pressing part of the cap body of the application part guide,
The liquid container according to claim 1, wherein one or more rib bodies are provided in the direction of the cap body and outward.
The liquid container according to claim 1, further comprising a tubular communication part between the communication hole of the joint part and the application part.
The liquid container according to claim 1, wherein the container body is made of a flexible resin and has a bottomed cylindrical shape or a tube shape.
The contact portion between the pressing portion of the cap body and the application portion guide is
The liquid container according to claim 1, comprising a seal portion.
The pressing portion of the cap body and the tip shaft portion contact,
The liquid container according to claim 1, wherein the contact portion constitutes a seal portion.
The liquid container according to claim 1, wherein a stroke caused by screwing between the cap body and the front shaft portion causes a pressure increase in the container to be 3000 mPa or less.

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