JP2513984Y2 - Applicator - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an applicator filled with a highly viscous coating liquid such as a correction liquid or a cosmetic liquid.

[0002]

2. Description of the Related Art An applicator having a spherical applicator has a tip attached to the tip of a coating liquid tank filled with the coating liquid through a front end. The spherical applicator is rotatably held in a state in which it protrudes from the tip. Then, the spherical application body is repelled by a spring, and when not in use, the spherical application body is brought into close contact with the inward tip edge of the chip, and a valve structure is formed by the spherical application body and the tip edge of the chip so that the application liquid is not discharged. Like that.

When the spherical applicator is pressed against the coating surface during use, the spherical applicator retreats against the elastic force of the spring, and a gap is formed between the spherical applicator and the tip edge of the chip. The coating liquid adhering to the inside of the tip of the coating body passes through this gap and is applied to the outside of the chip as the spherical coating body rotates.However, since the viscosity of the coating liquid is high, the coating liquid is in a natural state. Does not sufficiently supply to the surface of the spherical coated body. For this reason, the coating liquid tank is blow-molded with a flexible material so that it can be deformed. At the time of use, the coating liquid tank is pressed with a fingertip to pressurize the inside, and the pressure is used to apply the coating liquid to the surface of the spherical coating body. Is being supplied to.

[0004]

As described above, since it is necessary to press the coating liquid tank with a fingertip to pressurize the inside during use, the operation is complicated, and the coating liquid tank is blow-molded with a flexible material. Therefore, there is a problem that the manufacturing cost increases.

Therefore, an object of the present invention is to provide an applicator which is low in manufacturing cost because it is not necessary to press the application liquid tank with a fingertip during use.

[0006]

In order to achieve the above object, the present invention provides a spherical applicator which is rotatably held while a part of the spherical applicator is exposed from the tip of the tip. When the tip of the coating solution tank is attached to the tip of the coating solution tank, the tip is spring-loaded by the spring and contacts the inward tip edge of the tip If a check valve is placed and the cap is fitted to the tail end of the coating solution tank during application, the air in the cap is pressurized and the check valve opens, so that the coating solution tank is pressurized. To

[0007]

[Function] Since the check valve is arranged at the tail end of the coating liquid tank,
When the cap is fitted into the tail end of the coating solution tank at the time of coating, the air in the cap is pressurized and the check valve is opened, and the air enters the coating solution tank to pressurize the inside. Therefore, it is not necessary to press the coating liquid tank with a fingertip at the time of use, and it is not necessary to blow mold the coating liquid tank with a flexible material, and injection molding can be performed using a normal hard synthetic resin, so that the manufacturing cost is low. be able to.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the embodiments shown in the drawings. In FIG. 1, a tip 3 is fitted in a tip opening of a front end 2. The tip 3 is made of stainless steel in a cannonball shape, and a spherical coating 4 made of a super hard ball with a diameter of 1.0 mm is partially exposed from the tip of the tip 3 in the ball house at the tip of the tip 3. It is embraced in a freely rotatable state. The tip 3 may be made of a metal pipe. And in the chip 3,
A spring with a small mass (not shown) is placed,
This spring repels the spherical applicator 4 and presses it against the inward tip edge of the chip 3, and the spherical applicator 4 and the tip edge of the chip 3 constitute a valve mechanism.

The tip 2 into which the tip 3 is fitted is connected to the coating liquid tank 1. The coating liquid tank 1 is injection-molded from a normal hard synthetic resin, and has a lower manufacturing cost than that manufactured by blow molding with a flexible material. A coating liquid having a viscosity of, for example, 30 to 40 cps and having a high film forming property is filled from the inside of the coating liquid tank 1 and the front end 2 to the chip 3.

A check valve 5 including a valve case 51, a ball 52 and a spring 53 is arranged at the tail end of the coating liquid tank 1. That is, the valve case 51 having the ventilation hole 54 is fitted in the tail end opening of the coating liquid tank 1, and the ball 52 repulsed by the spring 53 closes the ventilation hole 54 from the inside. Therefore, although the coating liquid in the coating liquid tank 1 does not flow out from the check valve 5, the check valve 5
As the pressure on the outside of the
The non-return valve 5 is designed to open against the elastic force of the check valve.

When not in use, a bottomed cylindrical cap 6 shown by a phantom line is attached to the front port 2 to prevent evaporation of the coating liquid. Insert it into the tail end of the tank 1 by inserting it. In the process, the volume of the sealed space in the cap 6 decreases, and the check valve 5
Since the pressure on the outside of the check valve becomes high, the check valve 5 opens. Therefore, the air in the cap 6 enters the coating liquid tank 1,
Since the inside of the coating liquid tank 1 is pressurized, the coating liquid is sufficiently supplied to the spherical coating body 4. In other words, there is no need to press the coating liquid tank 1 with a fingertip, and the coating can be reliably applied in the manner of writing with a ballpoint pen.

[0012]

As described above, in the applicator of the present invention, the check valve is arranged at the tail end of the application liquid tank, so that the cap is fitted to the tail end of the application liquid tank when applying. , The air in the cap is pressurized and the check valve opens. Therefore, air enters the coating liquid tank and the inside is pressurized, and the coating liquid is sufficiently supplied to the spherical coating body.
Since it is not necessary to press the coating liquid tank with a fingertip at the time of use, it is not necessary to blow mold the coating liquid tank with a flexible material, and injection molding can be performed using ordinary hard synthetic resin, so that it can be manufactured at low cost. it can.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

[Explanation of symbols]

 1 coating liquid tank 2 front port 3 tip 4 spherical coating body 5 check valve 51 valve case 52 ball 53 spring 54 vent hole 6 cap

Claims (1)

(57) [Scope of utility model registration request] 1. A spherical applicator is rotatably held in a state where a part of it is exposed from the tip of the tip, and the spherical applicator is elastically springed by a spring to the inward tip edge of the tip. In an applicator in contact with the tip and connected to a coating solution tank filled with a film-forming coating solution having high viscosity, a check valve is arranged at the tail end of the coating solution tank, and a cap is applied during coating. When it is inserted into the tail end of the tank, the air in the cap is pressurized and the check valve opens,
An applicator characterized in that the inside of the application liquid tank is pressurized.