JPH0810405Y2 - Ink tank type applicator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a so-called raw ink type eyeliner of a writing instrument such as a writing pen, which uses an ink tank detachably attached to an applicator body as an ink storage section. The present invention relates to an applicator such as a makeup tool, and more particularly, to an applicator capable of reducing the outer diameter of an exterior component such as a shaft cylinder.

(Prior Art) Conventionally, a coating portion is fixed to the tip opening of the shaft cylinder, a cylindrical ink tank coupling portion is provided in the shaft cylinder, and a temporary ink reservoir member is provided between the coating portion and the ink tank coupling portion. There have been proposed various ink tank exchange type applicators including an applicator main body with an intervening ink and an ink tank detachable from the ink tank connecting portion. An example thereof is Japanese Utility Model Laid-Open No. 61-177881.

(Problems to be solved by the invention) It is impossible to make the outer diameter thin.

In recent years, the preference in the market has become multipolar, and there is a marked tendency to demand thicker or thinner applicators.

On the other hand, in the above-mentioned conventional applicator, since the ink tank is replaceable, the applicator, the temporary ink reservoir member and the accommodating portion of the ink tank connecting portion (hereinafter referred to as the main body mechanism) and the ink tank accommodating portion are provided. They are connected as separate members by means of screwing, fitting, etc., and when replacing the ink tank, the ink tank housing was removed and the ink tank was exposed before replacement. Therefore, it is necessary to increase the mechanical strength because the connecting part is doubled and the connecting part is repeatedly subjected to a force for removing and connecting, so it is not possible to reduce the wall thickness. As a result, the outer diameter becomes large, and it is difficult to obtain a thin product.

Here, as a configuration for reducing the outer diameter of the applicator,
It is conceivable to form each of the accommodating portions by a single barrel, and such a configuration is disclosed in Japanese Utility Model Laid-Open No. 63-884 (invention name: disposable writing instrument).

However, the writing instrument disclosed in Japanese Utility Model Laid-Open No. 63-884 discloses that the ink tank is pressed in the direction of the application portion during use to be connected with the cylindrical ink tank connecting portion and at the same time the lid of the ink tank is opened. Although the ink is ejected to the coating part side, the ink tank cannot be replaced when the ink in the ink tank is used up.

The object of the present invention is to have a small outer diameter, and to make the ink tank easily removable so that ink can be replenished, that is, it can be replaced with a new ink tank, or ink can be refilled into the ink tank that has been removed. It is to provide an ink tank type applicator that can be inserted.

(Means for Solving the Problem) The ink tank accommodating portion and the main body mechanism accommodating portion are formed by one shaft cylinder, and a slit is provided in the longitudinal direction from the rear end of the ink tank accommodating portion, and the main body mechanism accommodating portion and the tail are formed. By providing the connection position with the stopper to the rear of the rear end of the ink tank, it is possible to provide an ink tank type applicator which has a small outer diameter and which allows the ink tank to be easily attached and detached for ink replenishment.

That is, according to the present invention, the application portion is fixed to the tip opening of the barrel,
An applicator body in which a cylindrical ink tank coupling portion is provided in the shaft cylinder, a temporary ink reservoir member is interposed between the coating portion and the ink tank coupling portion, and the shaft cylinder rear portion serves as an ink tank accommodating portion, An ink tank type applicator comprising an ink tank that can be attached to and detached from an ink tank connecting portion and a tail plug that can be attached to and detached from an ink tank accommodating portion. The gist of an ink tank type applicator is characterized in that a connection position with a tail plug is provided rearward of a rear end of an ink tank.

(Embodiment) FIG. 1 shows an embodiment of the present invention.

Reference numeral 10 is a brush tip, 20 is a brush tip fixing tube, 30 is a barrel, 50 is a temporary ink reservoir member, 60 is an ink tank, and 70 is a tail plug.

Insert the brush tip 10 into the through hole of the brush tip fixing tube 20, and fix the collar 11 provided at the base portion of the brush tip 10 and the step portion 22 provided inside the through hole of the brush tip fixing tube 20 by fixing them. The coating member is pressed into the tip opening of the barrel 30, and the brim 21 of the brush-fixing tube 20 and the tip of the barrel 30 are brought into contact with each other and fixed.

On the bottom surface of the collar portion 11 provided at the base of the brush 10, the large diameter portion 42 front end surface of the ink guide core 40 in which the small diameter portion 41 of the ink guide core 40 is inserted into the through hole of the temporary ink reservoir member 50. Are in contact.

The temporary ink reservoir member 50 is provided with a comb-shaped temporary ink reservoir portion 51 having a vertical cross-section for absorbing and retaining the excessively discharged ink on the outer periphery thereof, and a cylindrical ink tank coupling portion at the rear end. 53 is provided integrally and is a temporary ink reservoir
The front end of the shaft 50 is brought into contact with the stepped portion of the large diameter portion 42 and the small diameter portion 41 of the ink guide core 40, and the rear end of the temporary ink reservoir 51 is brought into contact with the flange 31 provided in the barrel 30. It is arranged in the front part of the cylinder 30.

In the rear portion of the shaft cylinder 30, the ink tank accommodating portion 32 has a small diameter portion formed by reducing the diameter rearward of the combined ink tank rear end position, and is provided with a rib 33 as an engaging portion. A slit 34 whose width gradually decreases in the direction is provided.

The ink tank 60 is formed with a joint having a peripheral wall extending forward, the joint is attached and fixed to the ink tank joint 53, and is arranged in the ink tank accommodating portion 32.

The tail plug 70 has an annular rib 71, which is an engaging portion, provided in the thick wall portion of the inner wall, and covers the shaft cylinder 30 so as to cover the slit 34, and the annular rib 71 engages with the ink containing portion 32. Rib that is part
It is arranged so that it can be connected by crossing over 33.

 Next, the usage method will be described.

The ink tank accommodating portion 32 has a slit 34 formed at the end so that the rear end can be opened. Therefore, the rear end opening is expanded, the ink tank 60 is inserted, and the ink tank 60 is inserted from the rear side to be connected with the ink tank connecting section 53.

At this time, the lid of the ink tank 60 opens and the ink flows out.

Thereafter, when the tail plug 70 is capped on the ink tank accommodating portion 32, the slit 34 is hidden by the tail plug 70, and the rear 53 end of the ink accommodating portion can be bent by the slit 34, so that the ink tank connecting portion 53 and the tail portion The stopper 70 is connected to each other by overcoming the rib.

When the ink in the ink tank is used up, you can use the slit to remove the ink tank and replace it with a new one.

FIG. 2 shows another embodiment, in which basically the same members as those in the above embodiment are designated by the same reference numerals.

This embodiment is the same as the above-mentioned embodiment except that the inner diameter of the ink tank housing portion 32 rearward of the rear end position of the ink tank 60 is not small and that the slit width is constant, the method of use Regarding the above, the ink tank 60 is the same as that of the above-mentioned embodiment except that the ink tank 60 can be inserted without expanding the rear end.

Note that various specific configurations can be made besides the above. For example, it is desirable that the number of slits is 2 to 4, but the number of slits is not particularly limited, and various shapes can be adopted. Further, the connecting portion may have various structures other than the rib fitting. Further, instead of the brush heads, a fiber bundle that is hardened with resin or made of resin is used, or the temporary ink reservoir part of the temporary ink reservoir member has a screw shape. The coupling portion may be formed separately from the temporary ink reservoir member (for example, provided in the barrel).

(Effect of the device) The applicator of the present invention has the above-mentioned structure, and since the thickness of the connecting portion can be secured, the outer diameter is small, and the ink tank can be easily attached and detached to replenish ink. It has excellent properties.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a vertical sectional view of the embodiment, and FIG. 2 is a vertical sectional view of another embodiment. 10 ... Brush head, 30 ... Shaft cylinder, 33 ... Rib, 34 ... Slit, 53 ... Ink tank connection part, 50 ... Temporary ink reservoir member, 60 ... Ink tank, 70 ... Tail plug , 71 …… Annular rib

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A coating part is fixed to the opening of the tip of the shaft cylinder, a cylindrical ink tank coupling part is provided in the shaft cylinder, and a temporary ink reservoir member is interposed between the coating part and the ink tank coupling part. Let
An applicator body with the rear part of the shaft cylinder as the ink tank housing part,
An ink tank type applicator comprising an ink tank that can be attached to and detached from an ink tank connecting portion and a tail plug that can be attached to and detached from an ink tank accommodating portion. An ink tank applicator characterized in that the connection position with the tail plug is provided behind the rear end of the ink tank.