JP2005125578A - Coating implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coating implement which can smoothly and sufficiently discharge a coating liquid from an apex of a chip at the time of a first brush. <P>SOLUTION: The chip 30 freely rotatably holding a spherical coating body 31 at the central hole of the apex is fitted, and an apex opening 20 with an extruding pipe 22 communicated with this central hole is fitted on an apex opening of a shaft cylinder 10. One or two or more cutout parts 23 are formed in the shaft line direction from the tail end edge of this extruding pipe, and a coating liquid tank in which a coating liquid is filled by sealing the apex opening with a bung is stored in the shaft cylinder. At first brushing, when the tail end part of the coating liquid tank projecting from the tail end opening of the shaft cylinder is pushed in, sealing of the apex opening is released by retreating the bung 42 of the coating liquid tank by the extruding pipe, and the coating liquid in the coating liquid tank is fed to the chip through the tail end opening of the extruding pipe and the cutout parts. In addition, a ring part 24 is formed on the inner peripheral face of a part where the cutout parts of the extruding pipe are formed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

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.

  The applicator with a spherical application body is filled with a coating liquid with a high viscosity in which a pigment is dispersed in a solvent in a coating liquid tank corresponding to a shaft cylinder of a writing instrument. The chip is attached via As in the case of the ballpoint pen, the spherical application body is held in a freely rotating manner with a part of the tip protruding from the tip. The spherical coated body is repelled by a spring, and when not in use, the spherical coated body is brought into close contact with the inward leading edge of the chip, and the spherical coating body and the leading edge of the chip constitute a valve structure so that the coating liquid is not discharged. I have to.

  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 film-forming coating solution filled in the coating solution tank is a pigment dispersed in a 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 member in the coating liquid tank, stir the coating liquid with a stirring member that moves up and down by shaking the applicator, and disperse the separated pigment in the solvent. .

  A tip that freely holds a spherical application body having a diameter of about φ1 mm has an outer diameter of about φ3 mm, and the tip is fitted to the middle part of the central hole at the tip of the shaft tube or the tip. Therefore, the inner diameter of the center hole of the tip is about φ3 mm. On the other hand, the inner diameter of the coating liquid tank is about φ8 mm, and the outer diameter of the stirring bar arranged in the coating liquid tank is about φ6 mm. For this reason, even if the applicator is shaken up and down, the stirrer does not penetrate into the center hole of the tip, so the pigment settled in the portion where the tip of the tip of the tip hole is not fitted cannot be stirred. .

  By the way, there is a case where a long period of time elapses after the applicator is manufactured and before it reaches the user's hand. In this case, there is a high possibility that the pigment of the coating solution will settle in the chip. Thus, when the pigment of the coating liquid settles in the chip, the coating liquid on which the pigment has settled cannot be agitated. Therefore, when the user first uses (at the time of the first writing), the coating liquid is smoothly from the tip of the chip, and There is a problem of insufficient discharge.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an applicator that smoothly and sufficiently discharges a coating solution from the tip of a chip at the time of first writing.

In order to achieve this object, the invention of claim 1 is characterized in that a tip having a spherical application body rotatably held in a central hole at the tip is fitted, and a tip having an extruded tube communicating with the central hole is pivoted. A coating solution that is attached to the tip opening of the tube, forms one or more notches in the axial direction from the tail edge of the extruded tube, and the tip opening is sealed with a filling plug so that the coating solution is filled inside. The tank is accommodated in the shaft cylinder with the tip opening temporarily fixed to the extrusion tube, and when the tail end portion of the coating liquid tank protruding from the tail end opening of the shaft tube is pushed in at the first writing, the extrusion tube The plug of the coating liquid tank is retracted and the sealing of the tip opening is released, and the notch of the extrusion pipe is located in the coating liquid tank, and the coating liquid in the coating liquid tank passes through the tail end opening of the extrusion pipe and The chip is supplied to the chip through the notch.
According to a second aspect of the present invention, in the first aspect of the present invention, an annular portion is formed on the inner peripheral surface of the portion where the cutout portion of the extruded tube is formed.

  When the tail end of the coating liquid tank protruding from the tail end opening of the shaft cylinder is pushed in at the time of the first writing, the plug of the coating liquid tank is retracted by the extrusion tube, and the sealing of the tip opening is released, and the inside of the coating liquid tank Since the coating liquid is supplied to the chip for the first time, the coating liquid is smoothly discharged from the tip of the chip at the time of the first writing. Since there is a spring that repels the spherical application body inside the tail end opening of the extruded tube, the effective area of this tail end opening is reduced accordingly, and therefore the amount of coating liquid that can pass through the tail end opening is too large. However, since one or more notches are formed in the axial direction from the tail end edge of the extruded tube, the coating liquid in the coating solution tank is not only the tail end opening of the extruded tube, but also this notched portion. , The coating solution can be sufficiently discharged.

  Further, when an annular portion is formed on the inner peripheral surface of the portion where the notch portion of the extruded tube is formed, the annular portion becomes a spring receiving portion of a spring that repels the spherical coated body and pushes out the coating liquid tank. When the tube is temporarily fixed, the tail end portion of the extruded tube can be prevented from being radially reduced, and the coating liquid tank can be securely temporarily fixed.

  For the purpose of smoothly and sufficiently discharging the coating liquid from the tip of the tip at the first writing, when the tail end of the coating liquid tank protruding from the tail end opening of the shaft cylinder is pushed in at the first writing, the coating liquid is The stopper of the tank is retracted and the sealing of the tip opening is released so that the coating liquid in the coating liquid tank is supplied to the chip for the first time, and one or more in the axial direction from the tail edge of the extruded tube Realized with a simple structure that forms a notch.

  Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a state before the applicator is shipped. In FIG. 1, the shaft tube 10 is formed of a synthetic resin, such as nylon or PBT, and the wall thickness is 0. It is thin in the range of 5 to 1.0 mm, for example, 0.6 mm. An inner stage 12 is formed on the inner surface in the vicinity of the tail end opening 11 of the shaft cylinder 10. 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 extruded tube 22 that protrudes toward the tail end side is formed inside the front end 20, and the inner surface of the extruded tube 22 communicates with the center hole 21. Next, as shown in FIG. 4, two notches 23 are formed in the axial direction from the tail end edge of the extruded tube 22. There is no need for two notches 23. And the annular part 24 is formed in the internal peripheral surface of the part in which the notch part 23 of the extruded tube 22 was formed. The annular portion 24 also serves as a spring receiver after the first writing of the spring 32 described below. 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 is 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 plug 42 made of a metal sphere and serving as a stirrer is press-fitted into the sealing portion 41a at the tip of the tip opening member 41. That is, the tip opening of the coating liquid tank 40 is sealed by the filling plug 42. The tip portion of the sealing portion 41a is a fitting portion 41b having an inner diameter smaller than that of the sealing portion 41a. The coating liquid tank 40 is filled with a coating liquid (not shown) which is a correction liquid having a high film-forming property, for example, having a viscosity of 30 to 40 cps and having a pigment dispersed in a solvent. Two stirrers 43 made of metal bars are arranged in the coating solution. An outer stage 49 is formed at the tail end of the coating liquid tank 40.

  The coating liquid tank 40 is disposed in the shaft cylinder 10, and the fitting portion 41 b is fitted and temporarily fixed to the tail end portion of the extruded tube 22, and the outer stage 49 is the inner stage 12 of the shaft cylinder 10. So that the coating liquid tank 40 does not fall out of the shaft tube 10. Therefore, at the time of shipment, the tail end portion of the extruded tube 22 does not enter the sealing portion 41a of the coating liquid tank 40, and the filling plug 42 is pressed into the sealing portion 41a. The tank 40 is not opened. That is, there is no coating liquid in the chip 30. Here, since the annular portion 24 is formed on the inner peripheral surface of the portion where the cutout portion 23 of the extruded tube 22 is formed, when the fitting portion 41b is fitted to the tail end portion of the extruded tube 22 The tail end portion of the extruded tube 22 can be surely temporarily fixed without being reduced in diameter.

  When the user first pushes the tail end portion 40a of the coating liquid tank 40 protruding from the tail end opening 11 of the barrel 10 as shown in FIG. 2, the coating liquid tank 40 moves forward and pushes out. The tube 22 greatly enters the sealing portion 41a. As a result, the tail end surface of the extruded tube 22 pushes the plug 42 into the coating solution tank 40, and the tip opening of the coating solution tank 40 is opened. At this time, as shown in FIG. 3, the fitting portion 40 b of the coating liquid tank 40 is fitted to a portion where the cutout portion 23 of the extruded tube 22 is not formed. And since the internal diameter of the sealing part 41a is larger than the fitting part 41b, the notch part 23 will be exposed in the coating liquid tank 40. FIG. Accordingly, the coating liquid in the coating liquid tank 40 penetrates into the extrusion pipe 22 not only from the tail end opening of the extrusion pipe 22 whose effective area is reduced by the presence of the spring 32 but also from the notch 23. Then, it is supplied into the chip 30 through the center hole 21 of the tip 20. Therefore, the coating liquid is smoothly and sufficiently discharged from the tip of the chip 30 at the time of the first writing. The plug 42 pushed into the coating liquid tank 40 serves as a stirring bar.

It is sectional drawing which shows the state at the time of shipment. It is a front view which shows the state at the time of a use start. It is an enlarged view of the principal part of FIG. It is a perspective view of an extrusion pipe.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Shaft cylinder 11 Tail end opening of shaft cylinder 12 Inner stage 20 Front end 21 Center hole of front end 22 Extrusion pipe 23 Notch part 24 Ring part 30 Tip 31 Spherical application body 32 Spring 40 Application liquid tank 40a Application liquid tank Tail end part 41 Tip opening member 41a Sealing part 41b Fitting part 42 Stuffing plug 43 Stirrer 49 Outer stage 50 Cap

Claims (2)

A tip having a spherical application body rotatably held in the center hole at the tip is fitted, and a tip having an extrusion tube communicating with the center hole is attached to the tip opening of the shaft tube, and the tail edge of the extrusion tube 1 or 2 or more notches are formed in the axial direction from
A coating liquid tank in which a tip opening is sealed with a filling plug and filled with a coating liquid is housed in a shaft cylinder in a state where the tip opening is temporarily fixed to the extrusion pipe,
When the tail end portion of the coating liquid tank protruding from the tail end opening of the shaft cylinder is pushed in at the time of the first writing, the plug of the coating liquid tank is retracted by the extrusion tube, and the sealing of the tip opening is released. An applicator characterized in that a notch is located in a coating liquid tank, and the coating liquid in the coating liquid tank is supplied to a chip through a tail end opening of the extrusion tube and the notch and can be applied.   The applicator according to claim 1, wherein an annular portion is formed on an inner peripheral surface of a portion where the cutout portion of the extruded tube is formed.

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