JP2524572B2 - Method for manufacturing applicator - Google Patents

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art An applicator with a spherical applicator has a tip attached to the tip of a coating liquid tank which is made of a flexible material and filled with a coating liquid. The spherical applicator is rotatably held in the house with a part of the applicator protruding from the tip. Then, the coating liquid in the coating liquid tank is supplied to the surface of the spherical coating body and is coated on the coating surface by the rotation of the spherical coating body on the coating surface. The coating body is brought into close contact with the inward tip edge of the chip, and a valve structure is constituted by the spherical coating body and the tip edge of the chip to prevent the coating liquid from being discharged.

[0003]

In such an applicator, the spherical applicator is put in the ball house of the chip and then the tip edge of the chip is deformed inward by caulking, but only by deforming inward by caulking, The shape of the tip edge of the tip becomes distorted, so that it is not well compatible with the spherical applicator, and the valve structure constituted by both may not function sufficiently. Therefore, when the temperature in the coating liquid tank becomes high, the coating liquid may be discharged from the chip.

Therefore, an object of the present invention is to provide a method for manufacturing an applicator in which the tip edge of the tip and the spherical applicator are made to fit well by a simple method and the application liquid is not discharged when not in use. To do.

[0005]

To achieve the above object, the present invention provides a coating solution tank filled with a highly viscous film-forming coating solution, to which a chip is connected, and a ball house at the tip of the chip is spherically coated. A method for manufacturing an applicator in which a body is rotatably held in a state where a part of the body is exposed from the tip, and a spherical applicator is biased forward to contact an inward tip edge of a tip. After inserting the spherical coating material into the ball house of the chip and caulking the tip edge of the chip, insert a rod-shaped hitting jig into the chip from the rear end, and hit the spherical coating material to make the tip edge of the chip spherical. The applied body is deformed into a spherical shape.

[0006]

[Function] After the spherical coated body is put in the ball house of the chip and the tip edge of the chip is caulked, a rod-shaped hitting jig is inserted from the rear end into the center hole of the chip to strike the spherical coated body, Since the tip edge of the tip is deformed into the spherical shape of the spherical applicator, the tip edge of the tip and the spherical applicator are compatible, and when not in use, the spherical applicator urged forward is the tip of the tip facing inward. Evenly adhere to the edges. Therefore, the valve function is improved and the coating liquid is not discharged.

[0007]

Embodiments of the present invention will be specifically described below with reference to the drawings. In FIG. 1, a tip 2 made of stainless steel
Is a ball-shaped, ball-shaped house
22 has an inner diameter of 1.05 mmφ and communicates with the coating solution passage hole 21 through a central hole 23 and a plurality of radially formed vertical grooves 24. Then, as shown on the left side of the center line in FIG. 1, the spherical coating body 1 made of a superhard ball having a diameter of 1.0 mmφ is put into the ball house 22 and received by the seat portion 25 which is the bottom surface of the ball house 22. At this time, the spherical coated body 1 is adjusted to 0.23 from the ball house 22 of the chip 2.
It projects by mm.

Subsequently, as shown on the right side of the center line in FIG. 1, the tip edge 26 of the chip 2 is caulked to be deformed inward. As a result, the spherical applicator 1 is held with a part of the tip 2 protruding from the tip edge 26.

Next, as shown in FIG. 2, the tip 2 holding the spherical coating 1 is inserted into the holding hole 81 of the receiving tool 8 and held. At this time, the bottom surface 82 of the holding hole 81 and the spherical coating body 1 are separated by about 80 to 100 μm. Then, a rod-shaped hitting jig 9 is inserted from the rear end of the chip 2 into the coating liquid passage hole 21, and hitting is performed with a load of, for example, 150 g as indicated by an arrow.

By this hitting operation, as shown in FIG. 3, the spherical applicator 1 advances and collides with the bottom surface 82. Then, in this process, the tip edge 26 is plastically deformed. At this time, since the inner surface of the tip edge 26 is pressed by the spherical applicator 1, it is deformed into a spherical shape having the same curvature as that of the spherical applicator 1. Therefore, when the chip 2 is taken out from the receiving tool 8 and the counter-sunk jig 9 is pulled out, the spherical applicator 1 is movable in the front-rear direction within a range of about 80 to 100 μm in the ball house 22 and is freely rotatable. Be hugged.

In the coating solution passage hole 21 of the chip 2,
As shown in FIG. 4, a spring 5 having a small mass is arranged. That is, the cylindrical insert 6 is press-fitted into the holder 3, and the spring 5 is interposed between the insert 6 and the spherical coating body 1,
The spherical applicator 1 is elastically bulged forward. And this chip 2
Is press-fitted and held in the holder 3, and the holder 3 is connected to the coating solution tank 4 formed of a flexible material. From the inside of the coating liquid tank 4 to the coating liquid passage hole 21, for example, a coating liquid (not shown) which is a correction liquid having a viscosity of 30 to 40 cps and high film-forming property is filled.

In use, however, the coating liquid tank 4
When is pressed with a fingertip to reduce the internal volume, the coating liquid adheres to the outer periphery of the spherical coating body 1. Then, when the spherical coating body 1 is moved along the coating surface while being pressed, the spherical coating body 1 is moved to the spring 5
Since it retreats against the resilience of the sheet and rotates while it is in contact with the seat portion 25, it can be applied.

When not in use, the spherical applicator 1 is repelled by the spring 5, so that the tip edge 26 of the tip 2 is
However, since the tip edge 26 is deformed into the spherical shape of the spherical applicator 1, the spherical applicator 1 adheres to the tip edge 26 over the entire circumference thereof. In other words, the valve mechanism consisting of the spherical applicator 1 and the tip edge 26 of the tip 2 fully functions, and the coating liquid does not unexpectedly discharge.

[0014]

As described above, according to the present invention, the spherical applicator is put in the ball house of the chip, the tip edge of the chip is caulked, and then the bar-shaped counter-striking jig is inserted into the chip from the rear end. Since the spherical applicator is hammered and the tip edge of the tip is deformed into the spherical shape of the spherical applicator, the tip tip edge and the spherical applicator springed by the spring are better fit, and when not in use It is possible to manufacture an applicator in which the liquid does not discharge unexpectedly.

[Brief description of drawings]

FIG. 1 is a process explanatory diagram of the present invention.

FIG. 2 is a process explanatory diagram of the present invention.

FIG. 3 is a process explanatory diagram of the present invention.

FIG. 4 is a cross-sectional view of the applicator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spherical coating body 2 Chip 21 Coating liquid passage hole 22 Ball house 26 Tip edge of chip 3 Holder 4 Coating liquid tank 5 Spring 8 Receiving device 9 Countersunk jig

Claims (1)

(57) [Claims] 1. A tip is connected to a coating solution tank filled with a film-forming coating solution having a high viscosity, and a spherical coating body is freely rotatable in a state where a part of the spherical coating body is exposed from the tip in a ball house at the tip of the tip. A method for manufacturing an applicator that is held by the spherical applicator and is urged forward to come into contact with the inward tip edge of the chip, wherein the spherical applicator is placed in a ball house of the chip After caulking the tip edge of, the rod-shaped hitting jig is inserted into the tip from the rear end, and the spherical applicator is hit to deform the tip edge of the tip into the spherical shape of the spherical applicator. Method for manufacturing applicator.