JPH0331218Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a liquid cosmetic that exudes a cosmetic liquid from the tip of a cylindrical body containing a liquid cosmetic through a pen tip-like applicator. This relates to a cosmetic applicator, in particular, the applicator can be inserted and removed from the tip of the cylindrical body for easy replacement, and the amount of liquid exuded from the applicator can be sustained over a long period of time without the need for adjustment. This invention relates to a liquid cosmetic applicator that can automatically maintain contact between the body and a cosmetic liquid-impregnated material under a constant back pressure.

[Prior art and its problems]

A nib-type liquid cosmetic applicator usually has a nib-like applicator made of fiber agglomerates at the tip, but if this nib-like applicator gets dirty, it may not perform its intended function. The pen tip will need to be replaced several times during the period of use.

Conventional liquid cosmetic applicators of this type generally have a cylindrical body with a filling impregnated with a liquid cosmetic, such as nail polish remover, and the inner end is brought into contact with the filling. The outer end of the pen tip protrudes from the tip of the cylindrical body. An example of this is shown in Japanese Patent Application Laid-Open No. 175505/1983. However, in such conventional examples, the inner end of the pen tip-like coating body is brought into contact with the batting body with strong contact pressure, so as the pen tip is replaced many times, the contact surface of the batting body The inner edge of the new nib pushes against the inner edge of the new nib, causing it to recede, dent, or collapse, resulting in what is called "sagging," which impairs the contact between the inner edge of the nib and the wadding, and causes liquid to flow from the wadding to the nib. A problem is observed in which the penetration deteriorates and becomes virtually unusable at an early stage. However, such problems can be solved by
No. 58-175505 does not recognize this and therefore does not provide any solution.

Therefore, in order to avoid the above-mentioned "sagging", attempts have been made to interpose a relay body made of material that does not easily buckle between the inner end of the pen nib and the batting body, but in this case, the inner end of the pen nib There will be two interfaces between the relay body and the relay body, and between the relay body and the batting body, and since sufficient contact pressure cannot always be obtained at each interface, the pressure from the batting body to the pen tip will be This not only did not solve the problem, but also caused other inconveniences, such as increasing the number of parts and assembly man-hours.

[The problem that the idea attempts to solve]

This invention was developed with the aim of solving the problems mentioned above, such as poor contact pressure, resulting in early unusability, and an increase in the number of parts. The pen tip-shaped application body and the filling material impregnated with cosmetic liquid are brought into direct contact, and this contact is maintained under a constant back pressure that does not require adjustment over a long period of time, resulting in good liquid leaching from the application body. The object of the present invention is to realize a liquid cosmetic applicator having an applicator which automatically contacts with a constant back pressure and which can maintain the amount of liquid cosmetic.

[Means to solve the problem]

In order to solve the above problems, the present invention has a large diameter hole and a small diameter hole that penetrates in the axial direction through the front end of the cylindrical body that houses the filling body impregnated with a liquid cosmetic. A coating body insertion hole is provided, and the small diameter hole is opened at the shoulder at the front end of the middle part of the cylindrical body that accommodates the batting body, and the large diameter hole and the small diameter hole are in sliding contact with each other, and the coating body is preferably hard. A pen tip-shaped applicator body consisting of a large-diameter shaft and a small-diameter shaft that fit together with a high degree of frictional force, and where the small-diameter shaft is longer than the narrow hole, is removably inserted from the outside of the front end of the cylindrical body, and the applicator is applied. The inner end surface of the body narrow diameter shaft projects inward from the narrow diameter hole and is in direct surface contact with the front end surface of the batting body housed in the cylindrical body, and the shoulder portion and the front end surface of the batting body are in contact with each other. A space is formed between the cylindrical body, and an elastic pressing body is disposed in the rear end of the cylindrical body to constantly apply an elastic pressing force to the batting body toward the front end, so that the front end surface of the batting body and the small diameter shaft of the application body are arranged. The liquid cosmetic applicator is configured such that a constant back pressure is constantly applied to the contact surface with the inner end surface of the liquid cosmetic applicator without the need for adjustment.

[Effect]

According to the present invention, although the batting body always receives a constant elastic back pressure, its front end surface does not always come into contact with the shoulder inside the cylindrical body, leaving a space, so that the batting body always receives a constant elastic back pressure. The front end surface of the body makes intensive contact with the rear end of the applicator, allowing the liquid to penetrate well, and even if the pen tip-like applicator is replaced and the new applicator is brought into pressure contact several times, it will not sag as in the past. There is no shortage of contact pressure like that caused by. When replacing the pen tip-like applicator, simply pull it out from the front end of the cylindrical body with a little force and insert a new applicator, making it extremely easy and convenient to replace. The contact pressure with the batting body is always kept almost constant, and there is no need to individually adjust the pressure.

The end surface of the application body and the front end surface of the batting body are brought into direct surface contact without any intervening material, and are always under constant elastic back pressure, so as long as the impregnated cosmetic liquid is present in the batting body, Good leaching from the coating body is ensured.

〔Example〕

Preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal cross-sectional view of the liquid cosmetic applicator of the present invention, and FIG. 2 is a cross-sectional view taken along the line shown in FIG. 1.

The cylindrical body, designated as a whole by the reference numeral 1, has a front end 1
a, a rear end portion 1b, and an intermediate portion 1c, and the intermediate portion 1
A filling body 2 impregnated with liquid cosmetic is housed in c. The front end portion 1a is designed such that a pen tip-shaped applicator 5 can be inserted and removed from the outer end thereof, as will be described in detail below. The rear end portion 1b has a tail plug 3 for holding an elastic pressing body 4 that always exerts a constant elastic pressing force toward the front end in contact with the rear end surface 2b of the batting body 2. The cylindrical body 1 and tail plug 3 may be made of polypropylene or other hard materials, for example.

The front end portion 1a of the cylindrical main body 1 has a substantially tapered outer periphery, and a cap 6 is attached thereto via a packing 7.

An applicator insertion hole 9 is formed passing through the front end portion 1a in the axial direction. As shown in the figure, the insertion hole 9 is formed by connecting a large diameter hole 9a opening to the outside of the front end portion and a small diameter hole 9b opening to the inside of the intermediate portion 1c via a step portion 9c. A shoulder portion 10 is formed where the small diameter hole 9b opens. As can be seen from FIG. 1, a space is formed between the shoulder portion 10 and the front end surface 2a of the batting body 2, so that the batting body 2 does not come into direct contact with the shoulder portion 10 at all times. There is.

Corresponding to this insertion hole 9, a pen tip-shaped applicator 5
has a large-diameter shaft 5a and a small-diameter shaft 5b, and is preferably formed from a polyester fiber agglomerate. The large-diameter shaft 5a and the small-diameter shaft 5b are preferably firmly and slidably fitted into the insertion holes 9a and 9b, so that they are not easily pushed out of the insertion holes 9 by at least the action of the elastic pressing member 4. It is desirable that the material generates frictional resistance. The length of the small-diameter shaft 5b is longer than the length of the small-diameter hole 9b, so that when the large-diameter shaft 5a hits the stepped portion 9c, the inner end surface 5c projects a certain length into the intermediate portion 1c. .

Inside the intermediate portion 1c of the cylindrical body 1, a batting body 2 having a similar cross-sectional shape, for example, a cylindrical shape, is housed so as to be slidable back and forth. The main part of the batting body 2 is preferably made of an impregnable material such as polypropylene fiber felt, and is impregnated with a liquid cosmetic such as a nail polish remover liquid or a nail corrector liquid for manicure correction. The jacket 11 may consist of a polypropylene pipe. When the coating body 5 is inserted as described above, the front end surface 2a of the batting body 2 is the inner end surface 5 of the filling body 2.
c and as shown in FIG.
When it is pulled out, it can come into contact with the shoulder 10.

After inserting the elastic pressing body 4, the tail plug 3 is press-fitted and fixed from the rear end of the cylindrical body 1, and the rear part of the body 1 is sealed to prevent liquid cosmetic from leaking or volatilizing from the rear end. I'll make sure this doesn't happen.

An elastic pressing body 4, which is preferably a compression spring, is arranged between the tail plug 3 and the batting body 2. The elastic pressing body 4 is required to exert an elastic force that brings the batting body 2 into contact with the end surface 5c of the application body with a constant elastic back pressure that does not require constant adjustment, and is made of foamed polyurethane or sponge equivalent to a compression spring. It is also possible to use elastic materials such as. The elastic pressing force always presses the batting body 2 forward, but it is desirable that the elastic pressing force is not strong enough to push the application body 5 out of the insertion hole 9. However, even if it is so strong, the front end surface 2a of the batting body 2 comes into contact with the shoulder part 10, so the applicator body 5 will not completely slip out from the front end part 1a of the cylindrical body 1.

The inner end surface 5c of the coating body 5 described above is preferably a plane perpendicular to the axis, and is brought into contact with the front end surface 2c of the batting body, which is also a vertical plane, so as not to be buried in or dented. good.

When the pen tip-shaped applicator 5 is inserted into the insertion hole 9, the rear end surface 5c comes into contact with the front end surface 2a of the batting body 2, and when the pen tip-shaped applicator 5 is inserted further completely, the batting body 2 receives a force in the backward direction. , since it is constantly receiving constant back pressure from the elastic pressing body 4 from behind, the batting body 2
The contact surface between the filling body 2 and the applicator 5 remains in constant contact, and the liquid cosmetic is smoothly sucked from the batting body 2 to the applicator 5 and leaches out very well. The tip of the applicator 5 can have various shapes depending on the purpose, such as a simple pencil shape.

In the front end portion 1a of the cylindrical body 1, a vertical groove 8 may be provided as an air hole along the insertion hole 9 (see FIG. 2). This groove 8 is a passage through which air flows into the main body 1 to compensate for the pressure inside the cylindrical main body 1 to be reduced by the amount of liquid cosmetics leached from the pen-point-like applicator 5. The leaching of the liquid cosmetic into the application body 5 can be continued smoothly. In the illustrated example, the groove 8 is in contact with the applicator insertion hole 9, but the air passage groove may be formed independently of the insertion hole 9 by penetrating the thickness of the front end portion 1a. Such grooves 8 also act as ventilation holes for removing internal air when the pen tip 5 is pulled out and the liquid cosmetic is filled from the insertion hole 9 when the liquid cosmetic impregnated in the filling body 2 is exhausted.

[Effect of idea]

As explained above, according to the present invention, since the pen tip-like applicator for liquid cosmetics can be inserted and removed from the outer end of the cylindrical body, the pen tip-like applicator, which tends to get dirty, can be removed from the outside of the cylindrical body. It can be easily replaced from the end, allowing the application body to be used in a clean state at any time, and the filling body impregnated with liquid cosmetics is always elastically applied from behind the cylindrical body with constant strength. Since the pressure is applied, the contact pressure between the filling material and the pen tip does not decrease or deteriorate even if the pen tip is replaced repeatedly, and the specified contact pressure is automatically guaranteed without the need for constant adjustment. It has the effect of extending its service life over a long period of time.

In addition, although the coating body is always subjected to elastic pressing force through the batting body, since the elastic pressing force is constant, the frictional resistance between the coating body and the hole wall of the coating body insertion hole is applied. If the setting is made such that the coating body is pushed out of the cylindrical body by elastic back pressure, problems such as the coating body being pushed out from the cylindrical body due to elastic back pressure will not occur. Because it has a structure in which direct face-to-face contact is concentrated, the leaching of liquid cosmetics into the application body is direct and extremely efficient.The number of parts is small, and the liquid cosmetics are easy to use and can always be used in stable conditions. There are many advantages such as being able to obtain a cosmetic applicator.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing a preferred embodiment of a liquid cosmetic applicator according to the present invention having an applicator that contacts automatically with a constant back pressure, and FIG. 2 is a cross-sectional view taken along the line shown in FIG. be. Main code: 1...Cylindrical body, 1a...Front end,
1b... Rear end portion, 1c... Intermediate portion, 2... Filling body, 2a... Front end surface, 2b... Rear end surface, 4... Elastic pressing body, 5... Application body, 5a... Large diameter axis, 5
b...Small diameter shaft, 5c...Inner end surface, 9...Coating body insertion hole, 9a...Large diameter hole, 9b...Small diameter hole, 10...
...Shoulder area.

Claims (1)

[Claims for Utility Model Registration] An application body consisting of a large-diameter hole 9a and a small-diameter hole 9b penetrating the front end 1a of a cylindrical body 1 for accommodating a batting body 2 impregnated with a liquid cosmetic. An insertion hole 9 is provided, and the small diameter hole 9b is opened at a shoulder 10 provided inside the front end of the intermediate portion 1c of the cylindrical body 1 that accommodates the batting body 2, and is slidably fitted into the large diameter hole 9a. A pen tip-shaped applicator body 5 consisting of a large-diameter shaft 5a and a small-diameter shaft 5b that is slidably fitted into the small-diameter hole 9b and projects from the small-diameter hole into the intermediate portion 1c. Cylindrical main body front end 1a
It is inserted into the insertion hole 9 from the outer end with a large frictional force so as to be removable, and its inner end surface 5c is pulled out from the shoulder portion 10 into the inside of the cylindrical body to come into direct surface contact with the front end surface 2a of the batting body 2. At the same time, a space is formed between the shoulder portion 10 and the front end surface 2a of the batting body 2, and the batting body 2 is moved toward the front end surface 2a side of the rear end portion 1b of the cylindrical main body 1. The elastic pressing body 4 that always presses elastically with a constant pressure is attached to the rear end surface 2b of the batting body 2.
The inner end surface 5c of the application body and the front end surface 2a of the batting body are arranged in direct contact with each other, so that a constant contact back pressure that does not require constant adjustment is generated, and the application body body 5
When the filling body is pulled out for replacement or when the frictional force between the application body 5 and the insertion hole 9 is smaller than the pressure of the elastic pressing body 4, the front end surface 2a of the batting body is brought into direct contact with the shoulder portion 10. A liquid cosmetic applicator characterized in that the filling body is prevented from moving forward or the applicator body 5 is prevented from coming off.