JP2528775Y2 - Applicator - Google Patents

Description

[Detailed description of the invention]

[0001]

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

[0002]

2. Description of the Related Art There are spherical and rod-shaped applicators, and a rod-shaped applicator has a tip at the tip of a coating liquid tank filled with a coating liquid through a tip. The rod-shaped application body is attached from the tip of the tip. Then, the rod-shaped application body is spring-loaded with a spring,
When not in use, the valve formed on the rod-shaped application body is brought into close contact with the seat of the chip, and a valve structure is configured with the valve section of the rod-shaped application body and the seat of the chip to prevent the application liquid from being discharged. There are many.

In use, when the tip of the rod-shaped application body is pressed against the application surface, the rod-shaped application body retreats against the spring force of the spring, and a gap is formed between the valve portion of the rod-shaped application body and the seat of the chip. Therefore, the coating liquid is supplied to the tip of the rod-shaped coating body through this gap to be applied. However, since the viscosity of the coating liquid is high, the coating liquid is sufficiently supplied to the tip of the rod-shaped coating body in a natural state. Not. For this reason, the coating liquid tank is blow-molded with a flexible material to be deformable, and when used, 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 tip of the rod-shaped coating body. To supply.

As described above, it is necessary to press the coating liquid tank with a fingertip to pressurize the inside during use, so that 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 increases.

[0005]

For this reason, when the cap is mounted, the cap can be further pushed in with the inner cylinder of the cap sealing the tip of the chip, thereby reducing the volume of the sealed space in the inner cylinder. Then, the pressure in the inner cylinder increases. Therefore, the air in the inner cylinder enters the coating liquid tank,
Since the inside of the coating liquid tank is pressurized, there is no need to press the coating liquid tank with a fingertip during use.

However, since the rod-shaped application body is repelled by the spring, in order for air in the inner cylinder to enter the application liquid tank, it is necessary to overcome the resilience of the spring and retreat the rod-shaped application 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 when the inner cylinder seals the tip of the tip, and the inner cylinder of the cap becomes longer,
There is a problem that it is difficult to perform pressure operation.

Therefore, according to the present invention, when the cap is attached, the air in the inner cylinder can easily enter 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 having a low manufacturing cost.

[0008]

In order to achieve the object, according to the present invention, a rod-shaped application body which is repelled by a spring protrudes from a chip, and a valve portion formed on the rod-shaped application body is provided at a tip end of the chip. The valve mechanism is closed by contacting the seat, the tip holding the chip is connected to the coating liquid tank, the coating liquid tank is filled with a highly viscous film-forming coating liquid, and the ring formed on the outer circumference of the tip In an applicator in which the projection is in close contact with the inner peripheral surface of the inner cylinder of the cap and seals the chip, the inner cylinder of the cap is made of a highly flexible material, and the inner diameter is set to
Inside the center hole smaller than the protruding rod-shaped application body
In the process of arranging the valve opening member having the direction flange portion and attaching the cap, when the rod-shaped application body comes into contact with the peripheral edge of the center hole of the valve opening member , it retreats and the valve portion of the rod-shaped application body is chipped. When the cap is completed and the cap is completed, the contact between the valve-opening member and the rod-shaped application body is released, and the valve portion of the rod-shaped application body comes into contact with the seat of the chip.

[0009]

[Function] That is, in the process of attaching the cap,
Since the rod-shaped application body contacts the periphery of the center hole of the valve opening member,
As a result of the reaction, the rod-shaped application body retreats and separates from the seat of the chip, and the valve mechanism opens. Therefore, the pressurized air in the inner cylinder easily enters the coating liquid tank and is pressurized. When the mounting of the cap is completed, the contact between the valve opening member and the rod-shaped application body is released, the rod-shaped application body is restored, and the valve portion of the rod-shaped application body comes into contact with the seat of the chip to close the valve mechanism. Therefore, it is not necessary to press the coating liquid tank with a fingertip during use. Since the coating liquid tank does not need to be blow-molded with a flexible material and can be injection-molded with a normal hard synthetic resin, it can be manufactured at low cost.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the embodiments shown in the drawings. In FIG.
The tip 3 is fitted in the front end opening of the front end 2 in which 1 is formed. The tip 3 is formed in a shell shape from stainless steel, and an inward tip edge of the tip of the tip 3 is a seat portion 31. A rod-shaped application body 4 having a tapered valve portion 41 is arranged in the chip 3, and the tip of the rod-shaped application body 4 protrudes from the chip 3.

A small spring 5 having a spring force of 40 g is arranged in the chip 3, and the spring 5 resiliently pushes the rod-shaped coating body 4 to press the valve portion 41 against the seat portion 31 of the chip 3. . That is, the valve mechanism is constituted by the valve portion 41 of the rod-shaped application body 4 and the seat portion 31 of the chip 3. The leading end 2 is integrally connected to the coating liquid tank 1. The coating liquid tank 1 is injection-molded with a normal hard synthetic resin, and its manufacturing cost is lower than that obtained by blow-molding a flexible material. Then, from the inside of the coating liquid tank 1 and the tip 2 to the chip 3, for example,
It is filled with a coating liquid of 0 to 40 cps, which is a correction liquid having a high film forming property.

The cap 6 is formed of a synthetic resin, and has an inner cylinder 7 integrally formed therein as shown in FIG. When the inner peripheral surface of the leading edge 7a of the inner cylinder 7 comes into close contact with the annular projection 21 of the front end 2, the inside of the inner cylinder 7 becomes a sealed space. The valve opening member 8 is disposed in the inner cylinder 7. The valve-opening member 8 is formed of a material having high flexibility, and has a shape in which a partition is formed in the middle of the cylindrical body. A small central hole 82 is drilled. That is, the partition having the center hole 82 is the inward flange 81 of the valve opening member 8.

When the cap 6 is mounted on the front end 2, the leading edge 7 a of the inner cylinder 7 comes into close contact with the annular projection 21 of the front end 2 in the process, and the inside of the inner cylinder 7 becomes a sealed space. When the cap 6 is further pushed in the direction of the arrow from this state, the inner peripheral surface of the inner cylinder 7 slides in a state of being in close contact with the annular projection 21 and the volume of the sealed space in the inner cylinder 7 decreases. , The air in the inner cylinder 7 is pressurized. And as shown in FIG.
The rod-shaped coating body 4 comes into contact with the peripheral edge of the center hole 82 of the valve opening member 8. When the rod-shaped coating body 4 is pushed in this state, the rod-shaped coating body 4 retreats due to the repulsive force of the inward flange portion 81. That is, a gap is formed between the valve portion 41 of the rod-shaped application body 4 and the seat portion 31 of the chip 3, so that air in the inner cylinder 7 enters the application liquid tank 1 and pressurizes the application liquid tank 1. Is done.

When the abutting end 61 of the cap 6 is further pushed in from the state shown in FIG. 2 and abuts against the step surface 11 of the coating liquid tank 1, the mounting of the cap 6 is completed as shown in FIG. At this time, the inward flange 81 is largely deformed, and the tip of the chip 2 enters the center hole 82, and the tip side of the chip 2 comes into contact with the inward flange 81, and
Will not contact the inward flange 81. That is, the contact between the rod-shaped application body 4 and the valve opening member 8 is released. Accordingly, the rod-shaped application body 4 is restored by the elastic force of the spring 5, and the valve portion 41 is restored.
Then, it comes into contact with the seat 31 of the chip 3 again, and the inside of the application liquid tank 1 is maintained in a pressurized state.

As described above, when the cap 6 is mounted, the air in the inner cylinder 7 easily enters the coating liquid tank 1 without increasing the pressure inside the inner cylinder 7 so much. Is pressurized. Therefore, when the cap 6 is removed and applied, the application liquid is sufficiently supplied to the rod-shaped application body 4. That is, there is no need to press the application liquid tank 1 with a fingertip, and the application can be performed reliably.

[0016]

[0017]

As described above, in the applicator of the present invention, in the process of attaching the cap to the front end, the rod-shaped application body comes into contact with the valve-opening member, and the rod-shaped application body recedes due to the recoil thereof, and the tip is moved. And the valve mechanism is opened, so that the pressurized air in the inner cylinder easily enters the coating liquid tank, and the inside of the coating liquid tank is pressurized. Therefore, there is no need to press the coating liquid tank with a fingertip during use, and furthermore,
The application liquid tank does not need to be blow-molded with a flexible material, and can be injection-molded with a normal hard synthetic resin, so that it can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a sectional view of an applicator.

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

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

Claims (1)

(57) [Scope of request for utility model registration] 1. A rod-shaped application body repelled by a spring protrudes from a chip, and a valve portion formed on the rod-shaped application body contacts a seat at a tip end of the chip to close a valve mechanism and hold the chip. Is connected to the coating liquid tank, the coating liquid tank is filled with a highly viscous film-forming coating liquid, and an annular projection formed on the outer periphery of the front opening is in close contact with the inner peripheral surface of the inner cylinder of the cap. An applicator for sealing the chip by sealing the chip, wherein the inner cylinder of the cap is made of a highly flexible material.
And the inner diameter is smaller than the rod-shaped
A valve-opening member having an inward flange with a center hole formed therein is disposed, and in the process of mounting the cap, the rod-shaped application body retreats when the rod-shaped application body comes into contact with the periphery of the center hole of the valve-opening member. When the valve part is separated from the tip seat and the cap is completely mounted, the contact between the valve-opening member and the rod-shaped application body is released, and the valve part of the rod-shaped application body contacts the chip seat. And an applicator.