JPH10157379A - Knock type coating tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the dripping of a coating liquid following the erroneous recognition or the excessive opening of a valve mechanism by setting a part or the whole of a coating liquid occlusion body and a coating body recognizable. SOLUTION: A coating body 1 is inserted into a small diameter section of a through- hole 3 of a front shaft 2 consisting of a small diameter front a section and a large diameter rear section. Ribs 4 are formed on the inner wall of the through-hole 3 of the front shaft 2, and a space between ribs 4 is formed into an air flow opening. A coating liquid occlusion body 5 is disposed on the rear of the coating body 1, and the rear section of the coating body 1 is inserted into the front section of the coating liquid occlusion body 5. The front shaft 2 is molded by using transparent or translucent resin. The rear section 2a of the front shaft 2 is inserted into an engaging step section 2b of a front end opening of a rear shaft 8 and fixed thereon. The coating body 1 inserted from the engaging step section 2b of the front shaft 2 into the front section and the end of the coating liquid occlusion body 5 inserted from the rear opening end of the front shaft 2 are recognizable. The erroneous recognition of the generation of a trouble or the generation of dripping caused by the erroneous operation of excessive valve opening by an user can be prevented by the arrangement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an applicator for applying a coating liquid such as a black liquid, a paint, a writing liquid such as ink, and a cosmetic liquid such as an eyeliner or a lip color. More specifically, a valve mechanism is arranged between a coating body such as a pen tip and a coating liquid storage section for directly storing a coating liquid, and the valve mechanism is opened by pressing a pressing portion to apply the coating liquid to the coating body. The present invention relates to a knock-type applicator for supplying

[0002]

2. Description of the Related Art Conventionally, a coating liquid storage chamber for directly filling a coating liquid into a shaft cylinder is provided, and a coating liquid discharge port provided with a valve mechanism is provided on a front wall of the coating liquid storage chamber. There are known many knock-type applicators in which a coating liquid storage body is disposed in front of a storage medium, and the coating body is inserted in front of the coating liquid storage body. For example, Japanese Utility Model Laid-Open Publication No. 61-20379 discloses a hollow main body for storing ink, a fiber pen attached to one end of the main body, and an ink storage body for storing ink to be supplied to the fiber pen. A valve body having a guide through-hole and a valve seat at an outer opening edge of the guide through-hole interposed liquid-tight between the held pen holder and one end of the main body, and being freely movable into and out of the guide through-hole of the valve body. A valve rod having a valve that is inserted into the front end thereof and comes into contact with and separates from the valve seat, and a rear end of which is slidably engaged with a sliding portion of the other end of the main body; A spring interposed between the main body and the spring for urging the valve rod so as to constantly press the valve of the valve rod against the valve seat; A flexible sheet and a push button for pushing the valve rod against the spring. Devised to gist writing instrument, wherein there is disclosed.

In the above-described applicator, the application liquid storage chamber is sealed by a valve mechanism. When the valve mechanism is released during use, the application liquid relays through the application liquid occluding body to the application body. Supplied. In other words, this type of applicator has the advantage that it can prevent the surface to be applied and the surrounding body from being stained due to the dripping of the application liquid, as compared with the type of applicator that directly supplies the application liquid to the application body. I have. This is because, in this type of applicator, since the coating liquid storage body is disposed between the coating body and the valve mechanism, the supplied coating liquid first penetrates the coating liquid storage body, so that the coating liquid This is because the supply speed is reduced, and the holding amount of the coating liquid can be increased by increasing the size and porosity of the coating liquid occlusion body, so that dripping can be prevented. Incidentally, the dripping phenomenon refers to a phenomenon in which the coating liquid drops naturally from the coated body. This phenomenon occurs because the supply speed of the coating liquid to the coated body is high, so that the coating liquid may drop along the side of the coated body before the coating liquid penetrates into the coated body, or may change due to changes in the external environment such as temperature or pressure. This is caused in such a manner that an excessive amount of the coating liquid is supplied from the holding amount of the coating body and the coating liquid drops from the coating body. This dripping phenomenon becomes remarkable when a coating liquid using a volatile solvent is used, because the variation in the supply amount of the coating liquid due to a change in external temperature or atmospheric pressure becomes large.

[0004]

By the way, in the case of the above-mentioned applicator, in order to suppress the dropping phenomenon, the size of the coating liquid storage body is set to the upper limit of the variation in the supply amount of the coating liquid. , Will use a large coating solution occlusion body,
Since it takes time to supply the application liquid to the application body, there is a problem that a user mistakenly considers the failure as a failure, or excessively opens the valve mechanism, thereby causing a leakage of the application liquid.

The present invention informs the user that the coating liquid has permeated the coating liquid occlusion body and the coating body reliably, and prevents the coating liquid from dropping due to erroneous recognition or excessive opening of the valve mechanism. A knock-type applicator is provided.

[0006]

According to the present invention, a coating liquid storage chamber for directly filling a coating liquid in a shaft cylinder is provided, and a coating liquid discharge port provided with a valve mechanism is provided on a front wall of the coating liquid storage chamber. In a knock-type applicator in which a coating liquid storage body is disposed in front of the coating liquid discharge port, and a coating body is inserted in front of the coating liquid storage body, the coating liquid storage body and the coating body in the shaft cylinder are provided. The gist of the present invention is a knock-type applicator characterized in that part or all of the device is visible.

[0007]

In the knock type applicator according to the present invention, a part or all of the application liquid storage body and the application body can be visually recognized. Therefore, when the valve mechanism is opened, the application liquid storage body and the application substance are applied to the application body. Can be confirmed by the user. Therefore, at the beginning of use, it is possible to prevent the problem that the coating liquid hardly penetrates to the tip of the coating body, thereby erroneously recognizing it as a failure, and the problem that the valve mechanism is excessively opened to cause dripping.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view of a knock type applicator showing one embodiment of the present invention, and FIG. 2 is an external view thereof. Reference numeral 1 denotes a coated body formed of a fiber bundle such as an acrylic fiber, a polyester fiber, a nylon fiber, a rayon-based fiber, or a molded body such as a urethane-based resin, a polyester-based resin, a nylon-based resin, or a ceramic. The application body 1 is inserted into a small-diameter portion of the through hole 3 of the front shaft 2 having a small diameter at the front (upward in the figure) and a large diameter at the rear.

On the inner wall of the through hole 3 of the front shaft 2, a plurality of ribs 4 are formed in the longitudinal direction of the shaft, and the space between the ribs 4 is an air flow hole.

[0010] Behind the coating body 1, a coating made of a batting, which is a fiber bundle such as acrylic fiber, polyester fiber, nylon fiber, rayon fiber or the like, or a porous material having continuous pores made of a soft resin such as urethane resin. The liquid occlusion body 5 is arranged, and the rear part of the application body 1 is inserted into the front part of the application liquid occlusion body 5.

In the present embodiment, the front shaft 2 is formed of a transparent or translucent resin so that the internal state can be visually recognized. The front shaft 2 has a rear end 2a inserted and fixed to a front end opening of a rear shaft 8 formed of an opaque resin up to a locking step 2b. As a result, the locking step 2 of the front shaft 2
The tip of the coating liquid 1 inserted from the rear opening end of the coating body 1 and the front shaft 2 inserted in front of b is visible. Note that the front shaft 2 may be formed integrally with the rear shaft 8, and in this case, the rear shaft 8 is also formed of a transparent or translucent resin. In addition, as the transparent or translucent material, a homopolymer of polypropylene is highly transparent and good, but a block copolymer or a random polymer, which is a copolymer of polypropylene, is used to increase impact resistance, A blend of a homopolymer and a copolymer may be used. Also,
As other resins, polyethylene, polycarbonate, polystyrene, methacrylic resin, polyphenylene-based resin, polybutadiene resin, vinyl chloride resin, polysulfone resin, polymethylpentene, polyethylene terephthalate, polyamide, polybrurene terephthalate,
Acrylonitrile-butadiene-styrene copolymer resin,
Transparent or translucent grade thermoplastic resins such as acrylonitrile / styrene copolymer resin and fluororesin can be used. Further, the resin may be colored with a dye-based or pigment-based colorant to such an extent that the internal state can be visually recognized.
Further, a resin layer of a water- and oil-repellent agent such as a fluorine-based or silicon-based agent may be formed inside the front shaft 2 or the rear shaft 8.

A cover 7 having a forwardly projecting cylindrical portion 6 is disposed behind the coating liquid storage 5. The protruding cylindrical portion 6 has a front portion inserted into a rear portion of the coating liquid storage body 5, and the lid 7 is press-fitted to a rear end of the front shaft 2 and an inner wall of a rear shaft 8. It serves as a lid of a coating liquid container 9 formed inside the shaft 8.

A seat 6a is formed below the inner wall of the projection 6. The seat portion 6a is slidably disposed inside the protruding cylindrical portion 6, and has a resilient member 10 such as a coil spring.
1 provided on a valve body 11 urged rearward by
1a, and constitutes a valve mechanism. This valve body 11
It is necessary to use a material such that the valve mechanism has a sufficient hermeticity, but the flexural modulus is lower than that of the material of the lid 7, and the tensile breaking stress (value according to JIS K7113 measurement method) is 200 kg / Injection molding of polypropylene or a blend of polypropylene and polyethylene of cm ² or more is preferable.

This valve mechanism is a coating liquid discharge port of the coating liquid storage section 9, and an opening end of the continuous protruding cylindrical portion 6 is a substantial coating liquid discharge port.

The valve body 11 has a rear portion 11b extending through the lid 7 and extending into the coating solution accommodating portion 9.
The rear part of 1b is connected to the front end of a cylindrical valve opening body 12 arranged in the coating liquid storage part 9.

The valve opening body 12 has its rear portion inserted into the bottomed cylindrical portion 13a of the movable portion 13, which is the bottom of the coating solution storage portion 9. There is a slight gap between the rear end 12b of the valve opening body 12 and the bottom surface of the bottomed cylindrical portion 13a. This is play when pressing the bottomed cylindrical portion 13a forward to open the valve mechanism. The movable portion 13 is a portion that transmits the knocking operation to the valve opening body 12, and is formed of the bottomed cylindrical portion 13a and the thin portion 13b, and is formed integrally with the rear shaft 8 on the inner wall of the application liquid storage portion 9. I have. The rear shaft 8
In order to minimize the load required for the movable part 13 which is integrally formed, the flexural modulus (JIS
10,000 Kg / cm)
Injection molding of ² or less polypropylene or a blend of polypropylene and polyethylene is preferred.
Further, the rear shaft 8 may be formed of a transparent or translucent resin so that the internal state becomes visible.

The four projections provided at the rear of the valve opener 12 are guides 14 for preventing the valve opener 12 from oscillating. This 4
The two projections are provided in the cross direction, and are formed so that a slight gap is formed between the tip of the valve opening body 12 and the inner wall of the coating liquid storage unit 9 so that the valve opening body 12 does not eccentrically swing with respect to the inner wall of the coating liquid storage unit 9. doing. Further, in order to improve the assemblability, the valve opening body 12 is provided with a side wobble prevention guide 1 from behind the valve opening body 12.
4 has a widening taper. It is preferable in terms of molding that any one or two of the projections provided in the cross direction are formed so that their formation positions are shifted back and forth from other projections.

The rear portion 12a of the valve opening body 12 is made narrower than the opening diameter of the bottomed cylindrical portion 13a, so that when the valve opening body 12 is inserted into the coating liquid accommodating section 9 during assembly, the vibration is prevented. Even if a slight run-out occurs due to a slight gap between the guide 14 and the inner wall of the coating liquid storage section 9, the rear 1
2a can be reliably inserted into the bottomed cylindrical portion 13a, and product assembly can be facilitated. Further, the rear end 12b of the valve opening body 12
Is a bottomed tubular portion 13 having an R shape or a pointed shape.
It is easy to insert into a. In addition, the valve opening body 1
The second protrusion 12c is a locking portion of the elastic member 10.

The tail plug 15 is a bottomed cylindrical body having a large cylindrical portion provided with an entire circumferential rib 15a capable of being fitted with a cap on the outer wall and a small cylindrical portion formed with a spiral groove 15b on the inner wall. This tail plug 1
5 is a small cylinder of a tail plug 15 formed from a rear end of a plurality of ribs 13c provided on an outer wall of a bottomed cylindrical body 13a at a rear end of a rear shaft 8 in a longitudinal direction of the shaft to a diameter smaller than a rib outer diameter of the rib 13c. The tip opening of the spiral groove 15b on the inner wall is press-fitted. In consideration of this point, the tail plug 15 has a wall thickness so that the small cylindrical portion is unlikely to bend, and the spiral groove 15b of the tail plug 15 can bite into the rib 13c of the rear shaft 8 with time. It is preferable to mold with a material having a lower flexural modulus than a material such as resin or metal.

Next, the method of use will be described. Tail plug 15
When the pressing force is applied to the bottom portion, the thin portion 13b of the movable portion 13 is deformed, and the bottomed cylindrical portion 13a moves forward, so that the bottomed cylindrical portion 1 is moved.
The bottom surface of 3a advances the valve opening body 12 and the valve body 11 against the urging force of the elastic body 10, and separates the valve portion 11a from the seat portion 6a to open the valve mechanism. At this time, the valve opening body 12 moves in the coating liquid storage unit 9 while the shake is prevented by the shake prevention guide 14.

When the valve mechanism is opened, the coating liquid in the coating liquid storage section 9 passes through the protruding cylindrical section 6 and is discharged into the coating liquid occluding body 5, and is further applied through the coating liquid occluding body 5. It is supplied to the body 1 and coating is possible.

At this time, since the front shaft 2 is formed of a transparent or translucent resin, the coating liquid that has penetrated to the tip of the coating liquid occlusion body 5 is located before the locking step 2b of the front shaft 2. The penetration of the coating solution in the part can be confirmed. As a result, it is possible to prevent the user from erroneously recognizing that the failure that the coating liquid does not flow has occurred, or from erroneously opening the valve excessively and causing dropping. Further, there is an effect that the psychological burden in waiting for the application liquid to penetrate to the tip of the application body can be reduced.

[0023]

According to the knock type applicator according to the present invention, since the front part can be visually recognized from the valve mechanism, the penetration can be confirmed even if the penetration does not reach the vicinity of the tip of the application body, and the penetration is slow for the user. It is possible to prevent the coating liquid from dropping due to erroneous recognition as a failure or excessive opening of the valve.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of one embodiment of the present invention.

FIG. 2 is an external front view when a cap is attached to a rear end in one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Application body 2 Front shaft 2a Rear part 2b Locking step part 3 Tip through hole 4 Rib 5 Coating liquid storage body 6 Projecting cylinder part 6a Seat part 7 Lid 8 Rear shaft 9 Coating liquid storage part 10 Repellent member 11 Valve body 11a Valve part 12 Valve opening body 12a Rear part 12b Rear end 12c Projection part 13 Movable part 13a Bottom cylindrical part 13b Thin part 13c Rib 14 Guide for vibration prevention 15 Tail plug 15a Full-circle rib 15b Spiral groove

Claims (1)

[Claims] 1. A coating liquid storage chamber for directly filling a coating liquid in a shaft cylinder is provided, and a coating liquid discharge port provided with a valve mechanism is provided on a front wall of the coating liquid storage chamber. In the knock-type applicator in which the coating liquid is inserted in the front of the coating liquid storage body, a part or all of the coating liquid storage body and the coating body in the barrel are visible. Knock-type applicator characterized by doing.