JPH0616088U - Applicator - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an applicator that does not require pressing of the coating liquid tank with a fingertip at the time of use and has a low manufacturing cost. [Structure] 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 to contact the inward tip edge of the tip, In an applicator in which the tip is connected to a coating solution tank filled with a film-forming coating solution having high viscosity, a check valve 5 is arranged at the tail end of the coating solution tank 1, and a cap 6 is provided at the time of coating. When it is fitted so as to be inserted into the tail end, the air in the cap 6 is pressurized, the check valve 5 is opened, and the inside of the coating liquid tank 1 is pressurized.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an applicator filled with a highly viscous coating liquid such as a correction liquid or a cosmetic liquid.

[0002]

[Prior art]

 The applicator with a spherical applicator has a tip attached to the tip of a coating solution tank filled with the coating solution through the tip, and like a ball-point pen, a part of the tip is exposed from the tip. The spherical applicator is rotatably held in the extended state. Then, the spherical applicator is repulsed by a spring, and when not in use, the spherical applicator is brought into close contact with the inward tip edge of the chip, and the spherical applicator and the tip end edge of the chip form a valve structure so that the coating liquid does not discharge. I am trying.

When the spherical applicator is pressed against the application surface during use, the spherical applicator retreats against the elastic force of the spring and a gap is created between the spherical applicator and the tip edge of the chip. The coating liquid adhering to the inside of the tip of the spherical applicator passes through this gap and is applied to the outside of the chip as the spherical applicator rotates.However, since the viscosity of the coating liquid is high, it is applied in a natural state. The liquid is not sufficiently supplied to the surface of the spherical coated body. For this reason, the coating liquid tank can be blow-molded with a flexible material to make it deformable, and when in 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]

[Problems to be solved by the device]

 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 manufacturing cost is high because the coating liquid tank is blow-molded with a flexible material. There is a defect.

Therefore, an object of the present invention is to provide an applicator that does not need to press the coating liquid tank with a fingertip at the time of use and has a low manufacturing cost.

[0006]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention rotatably holds a spherical applicator in a state where a part of the applicator is exposed from the tip end of the tip, and the spherical applicator is springed by a spring to tip the tip. In the applicator connected to the coating solution tank filled with the film-forming coating solution with high viscosity, the tip comes into contact with the inward tip edge of the coating solution, and a check valve is placed at the tail end of the coating solution tank. When the cap is inserted so that it is inserted into the tail end of the coating solution tank, the air in the cap is pressurized and the check valve opens, so that the coating solution tank is pressurized.

[0007]

[Action]

 Since the check valve is located at the tail end of the coating liquid tank, if the cap is fitted so that it is inserted into the tail end of the coating liquid tank during application, the air inside the cap is pressurized and the check valve opens, Enters the coating liquid tank and the inside is pressurized. 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, resulting in low cost. It can be manufactured.

[0008]

【Example】

 The present invention will be described in detail below with reference to the embodiments shown in the drawings. In FIG. 1, a tip 3 is fitted in the tip opening of the front opening 2. The tip 3 is formed of stainless steel in a bullet shape, and a ball coating body 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 a ball house at the tip of the tip 3. It is embraced in a freely rotatable state when it is taken out. The tip 3 may be made of a metal pipe. Then, a spring (not shown) having a small mass is arranged in the tip 3, and this spring repels the spherical applicator 4 to press it against the inward tip edge of the tip 3 to make the spherical applicator 4 And the tip edge of the tip 3 constitutes a valve mechanism.

The tip 2 into which the chip 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 the manufacturing cost thereof is lower than that of the blow-molded liquid material. From the inside of the coating liquid tank 1 and the tip 2 to the chip 3, the coating liquid, which is a correction liquid having a viscosity of 30 to 40 cps and a high film-forming property, is filled.

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 elastically ejected by the spring 53 closes the ventilation hole 54 from the inside. Therefore, the coating liquid in the coating liquid tank 1 does not flow out from the check valve 5, but when the pressure outside the check valve 5 becomes high, the ball 52 retreats against the elastic force of the spring 53. However, the check valve 5 is designed to open.

When not in use, however, a bottomed cylindrical cap 6 shown in phantom is attached to the front opening 2 to prevent evaporation of the coating liquid, but when in use, this cap 6 is applied. Insert it into the tail end of liquid tank 1 by inserting it. In the process, the volume of the sealed space inside the cap 6 decreases and the pressure outside the check valve 5 increases, so that the check valve 5 opens. Therefore, the air in the cap 6 enters the coating solution tank 1 and pressurizes the coating solution tank 1, so that the coating solution is sufficiently supplied to the spherical coating body 4. In other words, it is not necessary to press the coating liquid tank 1 with a fingertip, and it is possible to reliably apply the coating liquid tank 1 by writing with a ballpoint pen.

[0012]

[Effect of device]

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

[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

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B43L 19/00 G

Claims (1)

[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.