JPH0698329B2 - Liquid fluid application method and application tool - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for applying a liquid fluid and an applicator.

“Conventional technology and its problems” Conventionally, when a liquid fluid such as a masking liquid or an organic solvent is applied to a metal surface or the like having a relatively small application range and a limited area, it is difficult to mechanize, and therefore a brush is used. It is done by hand using a paintbrush, brush, etc.

However, if it is a method of applying in a small area with a brush, a paintbrush, a brush, etc., it is difficult to perform accurate application. For example, it is technically possible to keep the application width constant and to ensure linearity. It is difficult to avoid and the coating range tends to be inaccurate.

The present invention solves such problems, and aims to accurately apply a liquid fluid within a limited width, to improve the coating efficiency, and to improve the practicality of coating work. I am trying.

"Means for Solving the Problem" As a method for applying a liquid fluid to solve the problem, when applying the liquid fluid in a desired width range forming a part of the surface to be coated, the liquid fluid is applied from a pipe hole. The liquid is discharged to release the pressure, and the liquid fluid is guided along a bifurcated coating strip that is smaller than the width of the surface to be coated and has a desired width range. A technique is used in which a bridge film is formed and the tension film is adhered and coated within a desired width range of the surface to be coated.

Further, as an applicator for applying and applying a liquid fluid to a desired width range forming a part of the surface to be applied, a housing forming a plenum portion for temporarily storing the pressurized liquid fluid, and a plenum portion attached to the housing. A liquid fluid supply pipe communicating with the liquid fluid supply pipe, the liquid fluid discharged from a pipe hole of the liquid fluid supply pipe attached to the tip of the liquid fluid supply pipe is guided, and a tension film in a stretched state is formed by the surface tension of the liquid fluid. In addition, a bifurcated coating piece that is applied and coated in a desired width range on the surface to be coated is adopted.

[Operation] In the first and second means, when the pressure of the liquid fluid inside the plenum portion of the housing and the inside of the tube hole is high with respect to the atmosphere of the opening portion of the tube hole, the liquid fluid causes the pressure difference in the tube hole. It flows inside and is guided between the forked coating pieces at the tip.

When the pressure is released by discharging the liquid fluid from the tube hole, the surface tension of the liquid fluid itself causes
The liquid fluid spreads along the bifurcated application piece and becomes a stretched state. The liquid fluid is applied by adhering the liquid fluid held in a stretched state between the forked coating pieces to the surface to be coated, and the coating width in this case depends on the distance between the tips of the forked coating pieces. It is set.

[Example] An example of a liquid fluid applying method and an applying tool according to the present invention will be described below with reference to Figs. 1 to 4.

1 to 3, reference numeral X is a surface to be coated, 1 is an applicator, 2 is a fluid pressurizing portion, 3 is a storage container, 4 is a housing, 5 is a plenum portion, 6 is a liquid fluid supply pipe, and 7 is a liquid container. Is a tube hole,
Reference numeral 8 is a bifurcated coating piece, and 9 is a coating width adjusting ring.

The liquid pressurizing section 2 pressurizes the liquid fluid in the storage container 3 and the plenum section 5 by manually or by using gravity or power to generate a pressurized fluid or by utilizing the head difference.

The storage container 3 stores and stores a relatively large amount of liquid fluid, and has a small diameter portion 10 formed at a lower portion thereof for inserting and connecting the liquid fluid into the housing 4 in a tightly closed state.

The housing 4 has a hexagonal flange portion on the outer peripheral surface thereof for operation at the time of combination with the storage container 3 and the like.
11 is provided, and a threaded portion 12 is formed on the outer peripheral surface of the tip portion.

The liquid fluid supply pipe 6 is attached to the front end of the housing 4 so that the pipe hole 7 is in communication with the plenum portion 5 and is integral therewith.

The bifurcated coating piece 8 is integrally attached to the tip of the liquid fluid supply pipe 6, and has an engaging inclined portion 13 so as to sandwich the extension line of the pipe hole 7 of the liquid fluid supply pipe 6. Liquid fluid discharged from the tube hole 7 is bifurcated and gradually spreads by passing through the space between the engaging inclined portions 13 to release the pressure, and in the meantime, a tension state (indicated by a chain line in FIG. 1) by surface tension. As shown in (3), it is supported in a state in which the tension film Z is formed), and the tip is formed in the shape of a sharp knife.

The coating width adjusting ring 9 has a female threaded portion 14 and is screwed with a threaded portion 12, and an engaging inclined portion of a bifurcated coating strip 8 is provided at a tip portion thereof.
An operation taper portion 15 for pressing and narrowing 13 is formed.

A method of applying the liquid fluid to the surface X to be coated using the applicator 1 configured as described above will be described below.

By the operation of the liquid pressurizing unit 2, the liquid fluid contained in the storage container 3 is pressurized, and the liquid fluid is fed into the plenum portion 5 of the housing 4 and the pipe hole 7, and from the opening of the pipe hole 7, The liquid fluid is introduced between the engaging inclined portions 13 and gradually spread by utilizing the surface tension, so that the bifurcated coating pieces 8 are stretched.

Then, the liquid fluid held in a stretched state between the bifurcated coating pieces 8 is brought into contact with the surface X to be coated to be adhered, and the bifurcated coating pieces 8 are attached to the surface of the stretching film Z. By moving in a direction orthogonal to, the liquid fluid based on the facing width dimension of the bifurcated coating piece 8 is applied to a part of the surface X to be coated.

Application width of liquid fluid in this case (range of desired width)
Is set by the distance between the tips of the bifurcated coating pieces 8. In the case of FIG. 1, the coating width adjusting ring 9 is rotated to change the engagement state between the engaging inclined portion 13 and the operation taper portion 15. It will be adjusted accordingly.

Next, FIG. 4 shows an application example in which the surface X to be coated is a watch band or a bracelet in which a plurality of pieces A and B are combined, and the surface X to be coated on the surface of the piece A is curved. Although it is planar, in this case as well, as shown in FIG. 4, the tension film Z is in contact with the medium-height coated surface X and the bifurcated coating pieces 8 are on both sides of the piece B. By engaging with the recessed portion at the boundary with, the occurrence of lateral shake is prevented and the workability is remarkably improved.

On the other hand, FIG. 5 shows a modified example of the bifurcated coating piece 8, in which an intermediate piece 16 is provided with a space between the bifurcated coating pieces 8 and between the pieces 8.16. When the tongue-shaped guide portion 17 is arranged and the liquid fluid is supplied through the pipe hole 7 of the liquid fluid supply pipe 6, each piece 8.16 and the guide portion 17 are provided.
A plurality of tension films Z are formed at the tip end portion by utilizing the surface tension and the capillary phenomenon between and, and the adaptability in the case where the coated surface X is a plurality of uneven surfaces is shown. It is an elevated one.

"Effects of the Invention" As described above, the liquid fluid application method and applicator according to the present invention have the following excellent effects.

(1) Since the liquid fluid is guided along the bifurcated application piece by its surface tension and the liquid fluid in a stretched state is adhered and applied, the liquid fluid is supplied within a limited width to It can be accurately applied to a desired small area forming a part of the application surface.

(2) In addition to the width of the bifurcated coating piece becoming the coating width as it is, the coating width can be freely set, and it becomes easy to maintain the coating width constant and to secure the linearity. And the coating efficiency can be improved.

(3) Since the coating film is formed between the bifurcated coating pieces and the coating film is used to coat the liquid fluid,
The coating work is less affected by the shape of the surface to be coated, can be applied to a wide range of objects to be coated, and the practicality of the coating work can be improved.

[Brief description of drawings]

1 to 4 show an embodiment of an applicator for carrying out the liquid fluid applying method according to the present invention. FIG. 1 is a front view in a partially cross-sectional state, and FIG. FIG. 3 is a bottom view of the part, FIG. 3 is a side view of the main part, FIG. 4 is a perspective view showing the application state of the liquid fluid by the applicator of FIG. 1, and FIG. 5 is another applicator of the present invention. It is a front view of the principal part which shows an Example. X: coated surface, Z: tension film, A / B: piece, 1 ... applicator, 2 ... fluid pressurizing part, 3 ... storage container, 4 ... housing, 5 ... Plenum, 6 ... Liquid fluid supply pipe, 7 ... Pipe hole, 8 ... Bifurcated coating piece, 9 ... Coating width adjusting ring, 10 ... Small diameter portion, 11 ... Flange portion, 12 ... Male screw Part, 13 ... engaging slant part, 14 ... female thread part, 15 ... operating taper part, 16 ... intermediate piece, 17 ... guiding part.

Claims (2)

[Claims] 1. A method for depositing and applying a liquid fluid in a desired width range forming a part of a surface to be coated (X), the liquid fluid being discharged from a tube hole (7) to release the pressure, By guiding the fluid along a bifurcated coating piece (8) which is smaller than the width of the surface to be coated and has a desired width range, the tension film (Z) in a stretched state is formed by the surface tension of the liquid fluid. Then
A method for applying a liquid fluid, which comprises applying the tension film to a desired area of a surface to be applied. 2. An applicator for adhering and applying a liquid fluid in a desired width range forming a part of a surface (X) to be coated, wherein a plenum portion (5) for temporarily storing a pressurized liquid fluid is formed. The housing (4), the liquid fluid supply pipe (6) attached to the housing and communicating with the plenum, and the liquid fluid supply pipe attached to the tip of the liquid fluid supply pipe and discharged from the pipe hole (7) of the liquid fluid supply pipe. A bifurcated coating piece (8) for guiding a liquid fluid and forming a tension film (Z) in a tension state by the surface tension of the liquid fluid, and applying and applying the tension film (Z) in a desired width range on the coated surface. Characteristic applicator.