JP4098710B2 - Applicator - Google Patents

Description

  The present invention relates to an applicator filled with a coating liquid having a high viscosity in which a pigment is dispersed in a solvent, such as a correction liquid and a cosmetic liquid.

  A spherical applicator has a tip attached to the tip of a coating liquid tank filled with a high viscosity coating liquid in which a pigment is dispersed in a solvent via a tip, and like a ballpoint pen, The spherical applicator is rotatably held with a part of the tip protruding from the tip. Then, the spherical application body is repelled by a spring, and when not in use, the spherical application body is brought into close contact with the inward leading edge of the chip, and the spherical application body and the tip edge of the chip constitute a valve structure so that the coating liquid is not discharged. Like that.

  In use, when the spherical application body is pressed against the application surface, the spherical application body moves back against the spring force of the spring, and a gap is formed between the spherical application body and the tip edge of the tip. The coating liquid adhering to the portion inside the chip passes through this gap and is applied to the outside of the chip as the spherical coated body rotates.

Since the highly viscous film-forming coating liquid filled in the coating liquid tank is a dispersion of the pigment in the solvent, the pigment separates from the solvent and precipitates when left for a long time. For this reason, it is necessary to dispose a spherical or rod-shaped stirring bar in the coating liquid tank, stir the coating liquid with a stirring bar that moves up and down by shaking the applicator, and disperse the pigment in the solvent.
JP 2003-291484 A

  By the way, when the applicator is left in a vertical posture for a long time, the pigment settles and solidifies in the lower part of the coating liquid tank to form a cake. When the amount of cake increases, the cake covers the stirrer and the stirrer is buried in the cake. Therefore, even if the applicator is shaken up and down, the stirrer can hardly come out of the cake. For this reason, it becomes impossible to destroy the solidified cake and disperse the pigment in the solvent again.

  In order to make it easier for the stirrer to come out of the cake and to increase the stirring effect of dispersing the pigment in the solvent, the mass of the stirrer can be increased and the number of stirrers can be increased. In addition, when the number of stirring bars is large, the effective internal volume of the coating solution tank becomes small, and the amount of coating solution that can be filled decreases. Moreover, when the applicator is shaken up and down, the impact when the stirrer collides with the bottom surface of the coating liquid tank increases. And if this impact is large, there is a risk that the coating liquid tank and the tip end will loosely fit and the coating liquid will leak out.

Therefore, the present invention has an object to provide an applicator having a large stirring effect of a coating liquid, with a large possibility that the stirrer embedded in the cake easily escapes without increasing the mass and the number of the stirrers so much. .

In order to achieve such an object, the present invention provides a spherical application body that is rotatably held in a state in which a part of the spherical application body protrudes from the tip of the chip, and the tip of the tip is connected to the coating liquid tank. In an applicator fitted in a hole and filled with a high-viscosity film-forming coating solution in the coating solution tank, a spacer composed of two stirrers and a metal pipe is placed in the coating solution tank. Are separated by a spacer.

Even if the applicator is left in a vertical position for a long time to form a cake in the lower part of the coating liquid tank, the upper stirring bar on the spacer is located in the coating liquid where the amount of pigment dispersed in the solvent is small. When the applicator is shaken up and down, the upper stirring bar collides with the end of the spacer, and the impact is transmitted to the lower stirring bar. Therefore, the lower stirring bar destroys the cake by this impact force, so that it can come out of the cake and the coating liquid can be stirred efficiently. In addition, since the spacer is made of a metal pipe, the mass is smaller than the solid spacer, the impact on the bottom of the coating liquid tank is small when the applicator is shaken up and down, and the amount of decrease in the effective internal volume of the coating liquid tank There are few advantages.

  In the coating solution tank, a spacer consisting of two stirrers and metal pipes is arranged, and the two stirrers are separated by the spacers. The buried stirring bar can be easily removed, and the applicator can have a large stirring effect on the coating liquid.

  Embodiments of the present invention will be specifically described below with reference to the drawings. In FIG. 1, a shaft cylinder 10 is formed of a synthetic resin such as nylon or PBT, and has a thin wall thickness in the range of 0.5 to 1.0 mm, for example, 0.6 mm. . A front end 20 is attached to the tip opening of the shaft tube 10. The shaft tube 10 and the tip 20 may be integrally formed. A chip 30 is fitted in the center hole 21 of the tip 20. In addition, a cylindrical fitting tube 22 that protrudes toward the tail end side is formed inside the front opening 20, and the inner surface of the fitting tube 22 communicates with the center hole 21. Further, when not in use, the cap 50 is fitted into the tip 20.

  The tip 30 is formed in a bullet shape with stainless steel, and a spherical application body 31 made of a carbide ball having a diameter of, for example, φ1.0 mm is partly exposed from the tip of the tip 30 in a ball house at the tip of the tip 30. It is a ballpoint pen type that can be held freely in the extended state. The chip 30 may be made of a metal pipe. A spring 32 having a small mass is disposed in the tip 30, and the spring 32 repels the spherical application body 31 and presses against the inward leading edge of the tip 30. That is, the spherical application body 31 and the tip edge of the tip 30 constitute a valve mechanism so that the coating liquid is not discharged from the tip of the tip 30 when not in use.

  The coating liquid tank 40 is formed into a bottomed cylindrical shape with a synthetic resin, for example, nylon or PBT, like the shaft cylinder 10, and has a thin wall thickness in the range of 0.5 to 1.0 mm. Yes, for example, 0.6 mm. A tip opening member 41 is fitted to the tip of the coating liquid tank 40, and a fitting portion 41 a at the tip is fitted to the fitting tube 22 of the tip 20. The coating liquid tank 40 is filled with, for example, a coating liquid (not shown) which is a correction liquid having a high film forming property and has a viscosity of 30 to 40 cps and in which a pigment is dispersed in a solvent. It is transmitted to the application body 31 and used for application.

  A first stirrer 42 made of a metal sphere is disposed closer to the tip 20 side in the coating liquid tank 40, and a second stirrer 43 also made of a metal sphere is disposed closer to the bottom surface side of the coating liquid tank 40. . A spacer 44 made of a metal pipe is disposed between the first stirring bar 42 and the second stirring bar 43. Here, the outer diameter of the first stirrer 42 and the second stirrer 43 is larger than the inner diameter of the spacer 44, and the sum of the outer diameter of the first stirrer 42 or the second stirrer 43 and the outer diameter of the spacer 44 is It is larger than the inner diameter of the coating liquid tank 40. That is, the first stirrer 42 and the second stirrer 43 are separated from each other by the spacer 44, and the first stirrer 42 and the second stirrer 43 are not in direct contact with each other.

When the applicator is in a vertical posture, for example, a posture in which the tip 30 faces downward as shown in FIG. 2, the first stirrer 42 comes into contact with the fitting tube 22 of the tip 20, and the spacer 44 and the second The stirrer 43 is stacked, but if left in this position for a long time, the pigment of the coating solution separates from the solvent and settles, solidifies into a cake. When the amount of cake increases, the first stirrer 42 is buried in the cake, and further, the lower portion of the spacer 44 is also buried. Here, the length of the spacer 44 is such that even if most of the pigment becomes a cake, the entire length is not buried in the cake, and the second stirrer 43 is present in the coating liquid in which the pigment is hardly dispersed in the solvent. However, the length is not buried in the cake.
The situation is the same even if the chip 30 is left facing for a long period of time. Although not shown, the second stirrer 43 and the lower part of the spacer 44 are also buried in the cake. It exists inside and does not bury in the cake.

  When the coating liquid is stirred by shaking the applicator up and down in this state, the first stirrer 42 or the second stirrer 43 buried in the cake is difficult to move, but the second stirrer 43 or the first stirrer 43 that is not buried in the cake. The stirrer 42 collides with the end of the spacer 44 and the impact is transmitted to the first stirrer 42 or the second stirrer 43 buried in the cake. Therefore, the cake is destroyed by this impact force, and the first stirring element 42 or the second stirring element 43 buried in the cake can also move up and down. And since the cake solidified by this stirring also becomes a fine pigment and disperse | distributes in a solvent again, sufficient stirring effect can be acquired.

  Further, when the applicator is shaken up and down, the second stirrer 43 and the spacer 44 and the first stirrer 42 collide with the bottom surface of the coating liquid tank 40 so that the spacer 44 is made of a metal pipe. The mass is smaller than that of the solid spacer, and the impact on the bottom surface of the coating liquid tank 40 is small. For this reason, there is little risk that the fitting of the fitting tube 22 of the tip 20 and the fitting portion 41a will loosen. Further, since the coating liquid enters the spacer 44, there is an advantage that the amount of reduction in the effective internal volume of the coating liquid tank 40 is small.

It is sectional drawing of this invention Example. It is explanatory drawing of the state which made the applicator the vertical attitude | position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Shaft cylinder 20 Front end 21 Center hole of front end 22 Insertion pipe 30 Tip 31 Spherical application body 32 Spring 40 Coating liquid tank 41 Tip opening member 41a Insertion part 42 1st stirrer 43 2nd stirrer 44 Spacer 50 Cap

Claims (1)

A spherical applicator is rotatably held with a part of the tip projecting from the tip of the chip, and the chip is fitted into the center hole of the tip connected to the coating liquid tank, In an applicator filled with a film-forming coating solution having a high viscosity,
An applicator characterized in that a spacer comprising two stirring bars and a metal pipe is disposed in the coating liquid tank, and the two stirring bars are separated by the spacer.

Images