JPH077775U - Applicator - Google Patents

Abstract

(57) [Abstract] [Purpose] When the cap is attached, the air in the inner cylinder can easily enter the coating solution tank to pressurize the coating solution tank, and it is necessary to press the coating solution tank with your fingertips during use. There is no applicator. [Structure] A valve opening member 8 having a front surface of a spring body 81 and a weight body 82 having a spherical front surface is arranged in the inner cylinder 7 of the cap 6, and in the process of mounting the cap 6, the spherical coating body 4 is When it comes into contact with the weight body 82, it retreats and separates from the inward tip edge of the tip 3, and when the mounting of the cap 4 is completed,
The spring body 81 is bent so that the weight body 82 comes into contact with the side portion of the chip 3, and the spherical coating body 4 is restored so as to come into contact with the inward tip end edge of the chip 3.

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 repelled 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.

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 increased because the coating liquid tank is blow-molded with a flexible material. There is a problem that becomes high.

[0005]

[Problems to be solved by the device]

 For this reason, when the cap is mounted, if the inner cylinder of the cap seals the tip of the chip and the cap can be pushed further, and the volume of the sealed space in the inner cylinder is reduced, the pressure in the inner cylinder will be reduced. Get higher Therefore, the air in the inner cylinder invades the coating solution tank and pressurizes the coating solution tank, so that it is not necessary to press the coating solution tank with a fingertip during use.

However, since the spherical applicator is spring-backed, in order to allow the air in the inner cylinder to enter the coating liquid tank, it is necessary to overcome the elastic force of the spring and retract the spherical applicator. There is. Therefore, it is necessary to sufficiently increase the pressure in the inner cylinder. In other words, it is necessary to increase the pushing distance of the cap when the inner cylinder seals the tip of the chip, which makes the inner cylinder of the cap longer and makes it difficult to perform the pressing operation.

Therefore, in the present invention, when the cap is attached, the air in the inner cylinder can be easily infiltrated into the coating liquid tank to pressurize the coating liquid tank, and it is necessary to press the coating liquid tank with a fingertip during use. It is an object of the present invention to provide an applicator that is free of manufacturing costs and has a low manufacturing cost.

[0008]

[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. The tip of the tip that holds the tip is connected to the coating liquid tank, the coating liquid tank is filled with the highly viscous film-forming coating liquid, and the ring-shaped protrusion is formed on the outer periphery of the tip. In an applicator that seals the tip in close contact with the inner peripheral surface of the inner cylinder of the cap, a valve opening member in which a weight body with a spherical front surface is attached to the tip of the spring body in the inner cylinder of the cap When the spherical coating body comes into contact with the weight body of the valve opening member in the process of mounting the cap and retracts, it retreats away from the tip end edge of the tip facing inward, and when the cap mounting is completed, the spring body Bends and the weight contacts the side of the chip, It restored to be in contact with the inward leading edge of the chip.

[0009]

[Action]

 That is, in the process of mounting the cap, the spherical applicator comes into contact with the weight of the valve opening member, and the reaction causes the spherical applicator to retreat and separate from the inward tip edge of the tip, opening the valve mechanism. Therefore, the pressurized air in the inner cylinder easily enters the coating liquid tank and is pressurized. When the cap is completely attached, the spring body bends and the weight body comes into contact with the side of the chip, the spherical applicator restores and the valve mechanism closes, and the pressurized state is maintained. Sometimes it is not necessary to press the coating liquid tank with your fingertips. Since it is not necessary to blow mold the coating liquid tank with a flexible material and injection molding can be performed with a normal hard synthetic resin, the coating liquid tank can be manufactured at low cost.

[0010]

【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 a front opening 2 having an annular projection 21 formed on the outer circumference of the tip. The tip 3 is made of stainless steel in a bullet shape, and a part of the spherical coating 4 consisting of a carbide ball with a diameter of 1.0 mm is 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.

A small spring 5 having a spring force of 40 g is arranged in the tip 3, and the spring 5 repels the spherical applicator 4 and presses it against the inward tip edge 31 of the tip 3 to form a spherical shape. The applicator 4 and the tip edge 31 of the tip 3 form a valve mechanism. The front port 2 is integrally connected to the coating liquid tank 1. The coating liquid tank 1 is injection-molded from a normal hard synthetic resin, and its manufacturing cost is lower than that of a liquid blow-molded from a flexible material. Then, from the inside of the coating liquid tank 1 and the front port 2 to the chip 3, the coating liquid which is a repair liquid having a viscosity of 30 to 40 cps and high film-forming property is filled.

The cap 6 is made of synthetic resin, and as shown in FIG. 2, an inner cylinder 7 is integrally formed inside. When the inner peripheral surface of the tip edge 7a of the inner cylinder 7 comes into close contact with the annular projection 21 of the front opening 2, the inner cylinder 7 becomes a sealed space. The valve opening member 8 is arranged inside the inner cylinder 7. The valve opening member 8 is formed by attaching a weight body 82 having a spherical front surface to the tip of a spring body 81 of a coil spring, and is located at the center of the inner cylinder 7. The weight of the weight body 82 is a spherical coating unit. The weight of the spring body 81 is slightly larger than that of the spring 5, and the spring force of the spring body 81 is slightly larger than that of the spring 5. The inner cylinder 7 may be arranged at a position slightly displaced from the center. Further, the spring body 81 is not limited to the coil spring, and may be, for example, a leaf spring having high flexibility.

When the cap 6 is attached to the front opening 2, the tip edge 7a of the inner cylinder 7 comes into close contact with the annular projection 21 of the front opening 2 in the process, and the inside of the inner cylinder 7 becomes a sealed space. If the cap 6 is pushed further in this direction from this state, the inner peripheral surface of the inner cylinder 7 slides in close contact with the annular protrusion 21 and the volume of the sealed space inside the inner cylinder 7 decreases. Therefore, the air in the inner cylinder 7 is pressurized. Then, as shown in FIG. 2, the spherical applicator 4 abuts on the weight 82 of the valve opening member 8. When pushed in this state, the weight of the weight 82 is slightly smaller than the weight of the spherical applicator unit 4. Since it is large and the spring force of the spring body 81 is slightly larger than the spring force of the spring 5 that repels the spherical coating unit 4, the spherical coating body 4 retreats by the repulsive force of the weight body 82. That is, since a gap is formed between the spherical applicator 4 and the tip edge 31 of the tip 3, the air in the inner cylinder 7 enters the coating solution tank 1 and the interior of the coating solution tank 1 is pressurized.

When the cap end 61 of the cap 6 comes into contact with the step surface 11 of the coating liquid tank 1 by further pushing in the state shown in FIG. 2, the mounting of the cap 6 is completed as shown in FIG. At this time, since the front surface of the weight body 82 is spherical, it is deviated from the center of the spherical coating body 4, the spring body 81 of the valve opening member 8 bends, and the weight body 82 contacts the tip side portion of the tip 2, The spherical applicator 4 does not come into contact with the valve opening member 8. Therefore, the spherical applicator 4 comes into contact with the tip edge 31 of the chip 3 again by the elastic force of the spring body 5, and the pressurized state in the application liquid tank 1 is maintained.

In this way, when the mounting of the cap 6 is completed, the air in the inner cylinder 7 easily enters the coating liquid tank 1 without raising the pressure in the inner cylinder 7 so much that the coating liquid tank 1 The inside is pressurized. Therefore, when the cap 6 is removed and coating is performed, the coating liquid is sufficiently supplied to the spherical coating body 4. That is, 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.

[0016]

[Effect of device]

 As described above, in the applicator of the present invention, the spherical applicator comes into contact with the weight body of the valve opening member in the process of mounting the cap on the front opening, and the spherical applicator retreats due to the reaction to the tip. Since the valve mechanism is opened so as to be separated from the inward tip edge of the inside, the pressurized air in the inner cylinder easily enters the coating solution tank, and the inside of the coating solution tank 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. It can be manufactured at a cost.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an applicator.

FIG. 2 is an explanatory diagram of a cap mounting process.

FIG. 3 is an explanatory diagram of completion of mounting of the cap.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coating liquid tank 2 Front port 21 Annular protrusion 3 Tip 31 Tip edge 4 Tip application 4 Spherical application body 5 Spring 6 Cap 7 Inner cylinder 7a Inner cylinder tip edge 8 Valve opening member 81 Spring body 82 Weight body

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. The tip that contacts and holds the chip is connected to a coating solution tank, the coating solution tank is filled with a film-forming coating solution with high viscosity, and the outer surface of the tip is the inner surface of the inner cylinder of the cap. And a valve opening member having a spherical weight body attached to the tip of a spring body in the inner cylinder of the cap, and a process of mounting the cap. When the spherical applicator comes into contact with the weight body and retreats away from the inward tip edge of the chip, when the cap is completely attached, the spring body bends and the weight body moves to the side portion of the chip. Contact, the spherical coating material restores and contacts the inward tip edge of the chip Applicator, characterized in that.