JPH0734959U - 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. An applicator that is free of manufacturing costs and is inexpensive. A spherical valve opening member 8 made of a highly flexible material is arranged in an inner cylinder 7 of a cap 6, and when the applicator 4 comes into contact with the tip of the valve opening member in the process of mounting the cap. When the cap is retracted and separated from the inward tip edge of the tip 3, the valve opening member elastically deformed closes the tip opening of the tip.

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, a cosmetic liquid, an adhesive, or a paint.

[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.

Even if the applicator is rod-shaped, a taper part of the middle part of the applicator is formed, and the taper part of the applicator that is repelled by the spring is brought into close contact with the inward tip end edge of the chip. A valve structure is configured by the tip-shaped edge of the strip-shaped coating material and the tip to prevent the coating liquid from being discharged. When the applicator is pressed against the application surface, the applicator retreats against the elastic force of the spring, and a gap is created between the taper part of the applicator and the tip edge of the tip. When the inside is pressed by pressing with, the coating liquid is supplied to the coating body to enable coating.

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.

[0006]

[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 coating body is elastically repelled by the spring, 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 coating body. 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 in the state where the inner cylinder seals the tip of the chip, which causes the inner cylinder of the cap to be long 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 solution tank to pressurize the coating solution tank, and it is necessary to press the coating solution 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.

[0009]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention holds the applicator in a state in which a part of the applicator is exposed from the tip end opening of the tip, and the applicator is spring-loaded to inwardly move the chip. Contacting the tip edge of the tip, the tip holding 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 outer peripheral surface of the tip is the inner cylinder of the cap. An applicator that seals the tip in close contact with the inner peripheral surface. A spherical valve opening member made of a highly flexible material is placed in the inner cylinder of the cap, and the applicator is applied during the process of mounting the cap. When the cap contacts the tip of the valve opening member, it retracts and separates from the inward tip edge of the tip, and when the cap is completely attached, the elastically deformed valve opening member closes the tip opening of the chip. To do.

[0010]

[Action]

 That is, in the process of mounting the cap, the applicator comes into contact with the tip of the spherical valve opening member, and as a reaction, the spherical applicator retreats and separates 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 valve opening member largely deforms and closes the tip opening of the tip, so that the pressurized state in the coating liquid tank is maintained and the coating liquid tank is pressed with a fingertip during use. You don't have to. Further, since it is not necessary to blow mold the coating liquid tank with a flexible material and injection molding can be performed with a usual hard synthetic resin, it is possible to manufacture at a low cost.

[0011]

【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 make 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. In addition, a valve opening member 8 formed of a highly flexible material and formed into a spherical shape is arranged in the inner cylinder 7.

Then, 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 comes into contact with the tip of the valve opening member 8, but when pushed in this state, the spherical applicator 4 retreats due to the repulsive force of the valve opening member 8. That is, since a gap is formed between the spherical coating 4 and the tip edge 31 of the chip 3, the air in the inner cylinder 7 enters the coating liquid tank 1 and the inside of the coating liquid tank 1 is pressurized.

When the joint end 61 of the cap 6 comes into contact with the step surface 11 of the coating liquid tank 1 by further pushing from the state shown in FIG. 2, the mounting of the cap 6 is completed as shown in FIG. At this time, the valve opening member 8 formed in a spherical shape with a highly flexible material is largely elastically deformed to close the tip opening of the tip 3. Therefore, the pressurized state is maintained in the coating liquid tank 1.

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. Further, since the valve opening member 8 is spherical, there is no directionality, there is an advantage that it is easy to assemble and the size error is easily absorbed. Further, because of the spherical shape, there is a clearance for escape, and the valve opening member 8 is less likely to undergo plastic deformation.

In the above embodiments, an example in which the application body has a spherical shape has been described, but the application body may have a rod shape and a taper portion is formed in the middle abdomen.

[0018]

[Effect of device]

 As described above, in the applicator of the present invention, the applicator comes into contact with the tip of the valve opening member in the process of attaching the cap to the front opening, and the spherical applicator retreats due to the reaction to the tip of the valve opening member. Since the valve mechanism is opened apart from the inward tip edge, the pressurized air in the inner cylinder easily enters the coating solution tank, and the coating solution tank is pressurized. Then, when the mounting of the cap is completed, the elastically deformed valve opening member closes the tip opening of the tip, so that the pressurized state in the coating liquid tank is maintained. 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.

[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 end edge 4 Spherical applicator 5 Spring 6 Cap 7 Inner cylinder 7a Inner cylinder tip edge 8 Opening member

Claims (1)

[Scope of utility model registration request] 1. The application body is held in a state where a part thereof is exposed from the tip end opening of the chip, and the application body is repulsed by a spring to contact the inward tip end edge of the chip,
The tip opening holding the tip is connected to a coating solution tank, the coating solution tank is filled with a highly viscous film-forming coating solution, and the outer peripheral surface of the tip comes into close contact with the inner peripheral surface of the inner cylinder of the cap. And a spherical valve opening member made of a highly flexible material is disposed in the inner cylinder of the cap, and the applicator is a valve opening member during the process of mounting the cap. An applicator characterized in that when it comes into contact with the tip, it retreats and separates from the inward tip edge of the tip, and when the mounting of the cap is completed, the elastically deformed valve opening member closes the tip opening of the tip.