JPH0626384Y2 - Application destination of applicator with valve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a valve-applied applicator containing a coating liquid such as a correction liquid, paint, cosmetics, ink, etc., and is particularly suitable for performing linear coating. The present invention relates to an application destination of an applicator with a valve having a straight tubular front body.

(Prior Art) The applicant of the present application has previously proposed a valved applicator having a straight tubular front portion, which is suitable for performing linear coating in JP-A-63-72084.

(Problems to be solved by the invention) Conventionally, a general-purpose thermoplastic resin such as polyacetal has been used as a material for the tip of the valved applicator, but especially when performing linear coating as described above. When a straight tubular body is preferably used, this tubular body generally needs to be formed to be thin in order to reduce the outer diameter so that a thin wire can be applied, so that the material strength such as bending strength is high, and It is preferable to use a corrosion-resistant metal material such as stainless steel that has good swelling resistance to a solvent, and the coating liquid is a pigment (for example, titanium oxide that has been conventionally used as a correction liquid).
In the case of containing, since the pigment acts as a strong abrasion material, the tip of the application destination is preferably stainless steel or the like having good abrasion resistance.

However, since metal materials, particularly stainless steel materials, are difficult to machine, for example, a through hole having a small diameter is formed like a straight tubular tube used as the tip body of the valved applicator, and further after the tip hole, When general cutting is adopted as a processing method for forming a structure with a seat at the rear end of the edge, the diameter of the processing cone is small, so center misalignment is likely to occur during tip hole or deep hole processing. As a result, the accuracy of the valve portion is lowered and liquid leakage is likely to occur, and the eccentricity of the tip hole for liquid ejection tends to result in an application destination that is difficult to apply.

Processing time is long and mass production is difficult.

The hole for drilling the hole for forming the seat is significantly damaged, and the cycle for replacing the hole is short, which causes a cost increase.
When the same cone is used, there is a problem that the production amount does not increase because the continuous processing time becomes short.

(Means for Solving the Problems) The present invention provides a wear-resistant metal tip having a seat portion behind the rear end of the tip hole, and a wear-resistant metal tip disposed behind the tip, which is easier to machine than the wear-resistant metal tip. Straight tube-shaped tip body made of a chip receiving body made of a conductive material; a coating body made of a valve body slidably disposed in the body and biased forward so as to press the valve portion against the seat portion. Where the wear resistant metal tip has an overall length of A and an outer diameter of B, the relationship of 0.3 ≦ A / B ≦ 3.0 is satisfied. The gist is the application destination of the valved applicator, which is characterized in that

That is, the valve tip applicator of the present invention needs to have a small outer diameter B of the straight tube-shaped tip body so that a thin line can be applied. Inevitably shortened, it is not possible to secure a fixing margin for fixing the tip to the tip receiving body, it is not possible to obtain a valved applicator that can be practically used, and if it is 3.0 or more, the outer diameter B Compared with the above, the total length A becomes longer, and the above-mentioned problems occur in the machining of the inside hole in which the seat portion is formed behind the tip end hole and the rear end of the chip.

(Operation) The application destination of the valve-applied applicator according to the present invention is, as described above,
When the total length of the tip is A and the outer diameter is B, the structure is such that the relationship of 0.3 ≦ A / B ≦ 3.0 is satisfied, so that center deviation during chip processing does not easily occur, It is possible to shorten the time and reduce the damage to the conical drilling hole.

(Embodiment) Hereinafter, the present invention will be described in more detail based on an embodiment shown in the drawings.

FIG. 1 is an example of a valved applicator having a coating tip of the valved applicator of the present invention, in which a front body 4 having a valve mechanism at the tip is fixed to a front end of a main body 5 having a coating liquid chamber therein. However, the structure behind the application destination (X portion) is not limited to that shown in FIG. 1, and various conventionally known structures can be adopted.

FIG. 2 is an enlarged view of the application destination (X portion) of FIG. 1, and reference numeral 1 is stainless steel which is a straight tubular wear-resistant metal formed with a seat portion 1a behind the rear end of the front end hole 1b. The chip 1 has a small diameter portion 2a of a chip receiving body 2 made of a metal such as brass or an engineering plastic such as polycarbonate, which is easier to process than the chip 1, at a rear portion thereof. It is inserted and fixed to the chip receiving body 2 up to the position where the step portion 2b of the chip receiving member abuts.

The tip body consisting of the tip 1 and the tip receiver 2 has an applicator 3a that can project forward from the tip hole 1b and a conical valve portion 3b that is continuously provided behind the applicator 3a. The valve element 3 is urged forward by an urging means such as a spring (not shown) so that the valve portion 3b is brought into pressure contact with the seat portion 1a, and is disposed slidably.

The ratio (A / B) between the total length (A) and the outer diameter (B) of the chip in this example is 3.0.

FIG. 3 is an enlarged view of the application destination in another embodiment, in which the rear end small diameter portion 11c of the stainless steel chip 11 having the seat portion 11a behind the rear end of the front end hole 11b is attached to the tip receiving body 1.
2 is inserted and fixed in the front end opening portion 121b of the tube body 121 which is the front portion of the tube body 121, and the rear portion of the tube body 121 is inserted and fixed in the front end opening portion 122b of the cylindrical body 122 which is the rear portion of the tip receiving body. .

In the apex body consisting of the tip 11 and the tip receiver 12,
Applicator 13a that can project forward from the tip hole 11b
And a valve body 13 having a cone-shaped valve portion 13b continuously provided behind the coating body 13a, a biasing means such as a spring (not shown) for pressing the valve portion 13b to the seat portion 11a. It is biased forward by and is slidably arranged.

The ratio (A / B) between the total length (A) and the outer diameter (B) of the chip in another example is 0.3.

In another embodiment, the tubular body 121 is preferably made of a free-cutting metal such as brass because of its thickness.
So-called engineering plastics having high hardness such as polycarbonate may be used.

(Effects of the Invention) As described in detail above, the applicator of the valve applicator according to the present invention is composed of a metal tip having a seat portion at the rear of the tip opening, the total length (A) and the outer diameter (B). Ratio (A / B) is 0.3-
Since it is 3.0, there is little occurrence of center misalignment of the tip, the precision of the valve part can be improved, there is little liquid leakage, there is little eccentricity of the liquid discharge hole, it is easy to apply, short processing time and mass production It is easy, the drill for forming the seat portion is less damaged, and the life of the drill can be extended. Further, when the same drill is used, the continuous processing time is extended, and the production amount can be extended.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the present invention, and FIG.
FIG. 3 is an enlarged normal vertical sectional view of the application destination (X portion) in the figure, and FIG. 3 is an enlarged normal vertical sectional view of the application destination of another embodiment. 1, 11 ... Chip, 1a, 11a ... Seat portion, 1b, 11b
... Tip hole, 2, 12 ... Tip receiver, 3, 13 ... Valve body,
3b, 13b ... Valve part

Claims (1)

[Scope of utility model registration request] 1. A wear-resistant metal chip having a seat portion behind the rear end of the tip hole, and a chip receiver made of a material that is easier to machine than the wear-resistant metal chip and is disposed behind the chip. A straight tubular apex; slidably arranged in the apices,
An application destination of an applicator with a valve, which has an application destination including a valve body biased forward to press the valve portion against the seat portion;
The wear-resistant metal tip has an overall length of A and an outer diameter of B.
The coating destination of the valved applicator is characterized by satisfying the relation of 0.3 ≦ A / B ≦ 3.0.