JPH1110058A - Applicator - Google Patents

Abstract

(57) [Problem] To provide an applicator which is easy to manufacture, and enables a spherical application body to rotate smoothly and apply smoothly. A spherical coating body is rotatably held with a part thereof protruding from a tip opening of a pipe tip, and a coating liquid in a coating liquid tank is supplied to the spherical coating body to perform coating. In the applicator, the pipe tip 20
Inside, a cylindrical seat member 40 having a seat portion 43 formed at the front end with a seat portion 43 with which the spherical application body 30 contacts at the time of application is arranged, and a spring 50 is arranged in the seat member 40. The resilient force of 50 makes contact with the inward leading edge 21 of the pipe tip 20.

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 high-viscosity coating liquid such as a correction liquid, a cosmetic liquid, an adhesive, or a paint.

[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 a highly viscous film forming coating liquid through a front end. The spherical coating body is held rotatably with a part of the tip protruding from the tip. Then, the spherical coated body is spring-loaded with a spring, and when not in use, the spherical coated body is brought into close contact with the inward tip edge of the chip, and a valve structure is formed by the spherical coated body and the tip edge of the chip. The liquid is not discharged from the chip, and the coating liquid in the chip is prevented from drying and solidifying.

[0003] In use, when the spherical coated body is pressed against the coated surface, the spherical coated body retreats against the elastic force of the spring and comes into contact with the seat formed in the chip. There is a gap between the inward tip edge of the ball and the coating liquid adhering to the inside of the chip of the spherical coated body is applied to the outside of the chip through this gap with the rotation of the spherical coated body. You.

[0004]

In such a ball-point pen type applicator, the tip has a shell shape and is formed from a rod material such as stainless steel by cutting or the like. However, since the shape is complicated, the manufacturing process is complicated. There is a problem that the number is large and the manufacturing facilities are large. Particularly, in the case of an applicator which is used for a special purpose and has a relatively small number of production units, it is not preferable to prepare a large-scale production facility.

For this reason, an applicator using a pipe tip for forming a tip from a metal pipe has been put to practical use.
In this pipe tip, the peripheral surface of the metal pipe is pressed from outside by about three places with a punch to form a concave portion, and the concave portion serves as a seat portion with which the spherical coating strip retreats and contacts at the time of coating. However, since the recess is formed by punching, the dimensional variation of the seat is inevitably greater than that of a shell-type chip in which the seat is formed by cutting. Therefore, when the spherical coated body rotates in contact with the seat, the spherical coated body does not rotate smoothly, and there is a problem that it is difficult to apply smoothly.

Accordingly, an object of the present invention is to provide an applicator which is easy to manufacture and in which a spherical applicator can smoothly rotate and apply smoothly.

[0007]

In order to achieve the above object, the present invention is directed to a spherical coating body in which a part thereof is rotatably held with a part thereof protruding from an opening at the tip of a pipe tip, and is provided in a coating liquid tank. In an applicator in which the application liquid is supplied to the spherical application body and can be applied, a cylindrical seat member formed at the tip with a seat portion in contact with the spherical application body during application is arranged in a pipe tip, A spring is disposed in the seat member such that the resilient force of the spring contacts the inward leading edge of the pipe tip.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. In FIG. 1, a leading end 10 is connected to a coating liquid tank (not shown), and a pipe tip 20 is fixed to a leading end opening of the leading end 10. Then, a coating liquid, for example, a correction liquid having a viscosity of 30 to 40 cps and a high film forming property is filled from the coating liquid tank and the inside of the front opening 10 to the pipe tip 20. Further, a stirrer is accommodated in the coating liquid tank.

The pipe tip 20 has, for example, an outer diameter of 2.6.
It is made of a stainless steel pipe having a diameter of 2.2 mm and an inner diameter of 2.2 mm.
Further, a seat member 4 described later is provided in the pipe tip 20.
0 is arranged. A space between the seat member 40 and the inwardly directed front edge 21 is a ball house 22.
The spherical coated body 30 is arranged in the
Are rotatably held in a state in which a part of them protrudes from the pipe tip 20. The spherical coated body 30 is made of, for example, a carbide ball having a diameter of 2.0 mmφ.

As shown in FIG. 2, the seat member 40 is a cylindrical member made of stainless steel and has a center hole 41 inside. A step 42 is formed in the center hole 41. The tip edge of the seat member 40 is cut obliquely so as to follow the curvature of the spherical coating body 30 to form the seat portion 43. Then, as shown in FIGS. 3 and 4, a one-part cut groove serving as a coating liquid passage is formed at the tail end and the tip end of the seat member 40 so that the coating liquid is sufficiently supplied to the spherical coating body 30. 45 and a cross groove 44 are formed. The seat member 40 is fixed to the pipe tip 20 by a caulking portion 23 at the tail end of the pipe tip 20.

A spring 50 composed of a coil spring having a spring load of 10 to 500 g is arranged in the center hole 41 of the seat member 40. The tail end of the spring 50 is engaged with the step portion 42 of the seat member 40, and the tip of the spring 50 resiliently projects the spherical application body 30. When not in use, the spherical application body 30 faces inward of the pipe tip 20. It is in close contact with the leading edge 21. That is, a valve structure is formed by the spherical coating body 30 and the tip edge 21 of the pipe tip 20. When not in use, the coating liquid is not discharged from the pipe tip 20 and
The coating liquid in the inside is prevented from drying and solidifying. At this time, the spherical application body 30 protrudes about 0.5 mm from the tip of the pipe and the tip 20, and the distance between the spherical application body 30 and the seat 43 of the seat member 40, that is, the ball stroke is about 0.35 mm. is there.

When the spherical coated body 30 is applied by pressing the coated surface, the spherical coated body 30 retreats against the elastic force of the spring 50 and comes into contact with the seat portion 43, and the spherical coated body 30 is pressed. And the valve structure composed of the tip edge 21 of the pipe tip 20 opens. Then, the coating liquid adhered to the back surface of the spherical coating body 30 with the rotation of the spherical coating body 30
However, since the spherical coated body 30 rotates while being in contact with the seat 43 formed by cutting, the spherical coated body 30 can be smoothly rotated and smoothly applied. Further, the shape of the pipe tip 20 is extremely simple as compared with the shell type tip, and the shape of the seat member 40 is relatively simple, so that it can be easily processed with simple equipment.

[0013]

As described above, according to the present invention, the spherical coating body is rotatably held with a part thereof protruding from the opening at the tip of the pipe tip, and the coating liquid in the coating liquid tank is spherically coated. In the applicator that can be supplied and applied to the body, a cylindrical seat member having a seat portion formed at the tip with which a spherical application body contacts at the time of application is arranged in a pipe tip, and a spring is provided in the seat member. Since it is arranged, the spherical coating body is brought into contact with the inward leading edge of the pipe tip by the resilience of this spring, manufacturing is simple,
An applicator capable of smoothly rotating and applying smoothly by the spherical applicator can be provided.

[Brief description of the drawings]

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

FIG. 2 is a sectional view of a seat member.

FIG. 3 is a bottom view of the seat member.

FIG. 4 is a cross-sectional view taken along line AA of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Tip 20 Pipe tip 21 Inward edge 22 Ball house 30 Spherical body 40 Seat member 43 Seat 50 Spring

Claims (1)

[Claims] 1. A coating method in which a spherical coating body is rotatably held with a part thereof protruding from a tip opening of a pipe tip, and a coating liquid in a coating liquid tank is supplied to the spherical coating body to enable coating. In the tool, a cylindrical seat member having a seat portion formed at the tip with which a spherical coating body contacts at the time of coating is disposed in the pipe tip, and a spring is disposed in the seat member, and the spherical coating body is provided. Is in contact with the inward leading edge of the pipe tip by the spring force of the spring.