JP3733664B2 - Applicator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a knock type applicator incorporating a writing liquid such as a black ink, a paint, an ink, a cosmetic liquid such as an eyeliner or a lip color, a coating liquid such as a handwriting correction liquid, or an adhesive.
[0002]
[Prior art]
Conventionally, a coating body in which a coating body such as a pen tip is fixed to a tip opening of a shaft cylinder in which a coating liquid container is formed, and a valve mechanism is disposed between the coating body and the coating liquid container. Ingredients are known. This applicator is capable of pressing the knock part and moving a movable member arranged in the coating liquid storage part to open the valve mechanism and discharge the coating liquid from the storage part to the pen tip side to enable writing. It is. By the way, when this type of applicator is not used for a long period of time or when the cap is removed and left unattended, the application liquid stored in the outflow path of the application liquid between the application body and the inner wall of the opening of the end of the shaft cylinder is stored. There was a problem that the solidified product, the gelled product, and the thickened product produced by evaporation of moisture and solvent from the liquid blocked the coating solution flow passage and hindered the coating solution from flowing out.
[0003]
Various proposals have been made to solve the above problems. For example, the actual fair 2-309 JP, a writing body with a liquid content function of fixing the valve body to slidably inserted into Jikuto front end hole, pigments between該筆Symbol outer surface and Jikuto front end hole inner surface An ink flow path is formed, and at least a part of the bullet cylinder is made of an elastic body, and the bullet is displaced by pressing the cylinder, so that the valve body and the writing body can slide simultaneously. The idea which makes the gist of the writing instrument with a side knock valve which was made is described. This device is used for the purpose of smoothly distributing ink by removing the ink mass or recovering the ink flow path by scraping the ink flow path when the ink outflow path is blocked by the dried and solidified ink components. The application body is slid simultaneously with the valve opening operation for pressing the cylinder.
[0004]
[Problems to be solved by the invention]
However, when the writing instrument of the above device is an ink component that has been dried and solidified, the ink component that blocks the ink flow path can be discharged out of the writing instrument by the above-described configuration. When it is a gelled product or a thickened product, it is difficult to peel or break the gelated product or the thickened product in the ink flow path between the coated body and the inner surface of the tip end of the shaft tube by sliding the coated body, There was a possibility that the coating liquid flow passage could not be completely recovered.
[0005]
In addition, the dried and solidified ink component, gelled product, or thickened product moved by sliding of the coated body may be caught between the valve portion of the valve mechanism and the valve seat, and the liquid tightness of the valve may be deteriorated. .
[0006]
In the present invention, the coating solution outflow path, which is a gap between the coating body and the inner wall of the opening at the shaft tip, is blocked by a solidified product, a gelled product, a thickened product, or the like generated by evaporation of moisture or solvent in the coating solution. When the coating liquid does not circulate smoothly, the solidified product, gelled product, or viscous product is discharged out of the applicator by sliding the applied body to restore the coating solution outflow path and move to dry solidification. It is an object of the present invention to provide a knock type applicator in which an ink component, gelled product, or thickened product is not sandwiched between a valve portion of a valve mechanism and a valve seat.
[0007]
[Means for Solving the Problems]
In the present invention, an application body is slidably disposed in a tip opening portion of a shaft cylinder in which a coating liquid storage portion is formed, and a valve mechanism is disposed between the application body and the storage portion, and the application body. In the knock type applicator formed by connecting the valve body to the valve body and further transmitting the operation of the movable portion to the valve body, the application body and the valve body are operated by knocking the movable member, and the valve mechanism together form the opening and closing of, also, the coating body, more becomes a smaller diameter portion than Jikuto distal opening inner diameter, equivalent to slightly larger large diameter portion, the small diameter portion of the non-knocking operation and sometimes applying part of said movable member There confronted with Jikuto tip opening, whereas, at the time of knocking operation of the movable member and summarized in that the large diameter portion of the applicator body is no to face the barrel tip opening.
[0008]
[Action]
In the knock type applicator according to the present invention, when the non-knock, the small diameter portion of the application body faces the shaft tube tip opening, the gap between the small diameter portion of the application body and the inner wall of the shaft tube tip opening is the application liquid outflow path Thus, the coating solution flows out smoothly. At the time of knocking, the coating body moves so that the large diameter portion of the coating body that is equal to or slightly larger than the inside diameter of the shaft cylinder tip opening portion faces the opening portion of the shaft tube tip. The thing blocking the path is discharged out of the applicator, and the coating liquid outflow path is restored.
[0009]
Furthermore, since the large diameter part of the application body is equivalent to or slightly larger than the inner diameter of the opening at the tip of the shaft cylinder, when discharging the solidified product, the gelled product, or the thickened product of the coating solution blocking the coating solution outflow path, The application liquid outflow path is temporarily blocked by the application body. Therefore, the phenomenon that the solidified product, the gelled product, or the thickened product of the coating liquid enters the applicator and is sandwiched between the valve body and the valve seat, and the liquid tightness of the valve is not deteriorated.
[0010]
【Example】
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 1 and 2 show a first embodiment of the present invention. FIG. 1 is a longitudinal sectional view of the first embodiment when not knocking, and FIG. 2 is a longitudinal sectional view of a main part of the first embodiment when knocking. Reference numeral 1 denotes a rear shaft in which a coating liquid storage portion 2 is formed. The rear shaft 1 is inserted and fixed in the front end opening, and has a small diameter in the front (upward direction in the figure) and a large diameter in the rear. A shaft cylinder is formed with the front shaft 3. In the end opening 4 of the shaft tube, a coated body 5 made of a fiber converging body such as acrylic fiber, polyester fiber, nylon fiber, or rayon fiber, or a molded body such as urethane resin, polyester resin, or ceramic is slid. Arranged freely. The application body 5 includes a small-diameter portion 5a that is smaller than the inner diameter of the tip opening portion 4 of the shaft cylinder, and a large-diameter portion 5b that is equal to or slightly larger than the inner diameter of the shaft cylinder tip opening portion 4, Convex part 5c which is a connecting part is provided.
[0011]
A valve mechanism is disposed between the application body 5 and the housing portion 2. The valve mechanism includes a lid body 6 that forms a seat portion 6a and a valve body 7 that forms a valve portion 7a that elastically contacts the seat portion 6a. The lid body 6 includes an inner cylinder portion 6b, an outer cylinder portion 6c, and a plate-like portion 6d that connects them, and the seat portion 6a is formed at the lower part of the front inner wall of the inner cylinder portion 6b. The lid body 6 is press-fitted into the inner wall of the rear shaft 1 and serves as a lid body for the coating liquid storage portion 2 formed inside the rear shaft 1.
[0012]
The valve body 7 is formed with a concave portion 7b and a valve portion 7a which are connected to the convex portion 5c which is a connecting portion of the application body 5 on the front end surface, and is formed in the inner cylinder portion 6b of the lid body 6. It is slidably arranged and is urged rearward by an elastic body 8 such as a coil spring. However, the connection between the application body 5 and the valve body 7 is not limited to the press-fitting of the convex portion and the concave portion as described above, and can be performed by other appropriate means such as screwing, fitting, and adhesion. is there.
[0013]
The valve mechanism is a coating solution discharge port of the coating solution storage unit 2, and a front opening end of the inner cylinder portion 6 b of the lid 6 is a substantial coating solution discharge port.
[0014]
The valve body 7 has a rear portion 7 c extending through the inner cylinder portion 6 b of the lid body 6 and extending into the coating liquid storage portion 2, and a rear portion of the rear portion 7 c is disposed in the coating liquid storage portion 2. The front portion thus formed is inserted and fixed to the front end of the valve opening 9 which is a cylindrical portion 9a.
[0015]
The valve opening body 9 is inserted into the bottomed cylindrical portion 10 a of the movable portion 10, the rear portion of which is the bottom of the coating liquid storage portion 2. The rear end 9b of the valve opening body 9 and the bottom surface of the bottomed cylindrical portion 10a have a slight gap. This is a play when the bottomed tubular portion 10a is pushed forward by a knocking operation to open the valve mechanism.
[0016]
The movable portion 10 is a portion that transmits the knocking operation to the valve opening body 9, and is composed of the bottomed tubular portion 10 a and the thin portion 10 b, and is formed integrally with the rear shaft 1 on the inner wall of the coating liquid storage portion 2. However, as long as the liquid tightness of the rear shaft 1 is maintained and the knocking operation can be transmitted to the valve opening body 9, it may be formed of a separate member made of a molded body such as polyethylene, rubber, or elastomer.
[0017]
In the rear end opening of the rear shaft 1 extending rearward of the movable portion 10, a hooked pressing member 11 is locked by being press-fitted into the bottomed cylindrical portion 10a of the movable portion 10. Yes.
[0018]
Further, a tail plug 12 is inserted and fixed to the opening end face of the rear end opening of the rear shaft 1. The tail plug 12 has a hooked cylindrical shape having a hook-shaped protrusion 12 a on the outer periphery, the outer wall is in close contact with the inner wall of the rear shaft 1, and the hook-shaped protrusion 12 b is in contact with the rear end opening end surface of the rear shaft 1. The rear shaft 1 is inserted and fixed.
[0019]
In addition, by making the inner diameter of the tail plug 12 smaller than the outer diameter of the flange portion of the flanged pressing member 11, when the flanged pressing member 11 is detached from the bottomed cylindrical portion 10a due to a drop impact or the like, the tail plug is Since it can be latched at the front opening end face of 12, the heel pressing member 11 can be prevented from falling off the applicator.
[0020]
Next, the usage method will be described. When the flanged pressing member 11 is pressed, the thin portion 10b of the movable portion 10 is deformed and the bottomed tubular portion 10a is advanced, and the bottom surface of the bottomed tubular portion 10a resists the urging force of the projectile 8. The valve opening body 9 and the valve body 7 are advanced, and the valve portion 7a and the seat portion 6a are separated to open the valve mechanism. At this time, since the application body 5 is fixed to the valve body 7, it advances together.
[0021]
When the valve mechanism is opened, the coating liquid in the coating liquid storage part 2 passes through the inner cylinder part 6b and is discharged into the front shaft 3 and moves in the front end direction. Since the diameter portion 5 b closes the shaft tube tip opening 4, the diameter portion 5 b is temporarily stored in the front shaft 2 behind the shaft tube tip opening 4.
[0022]
When knocking is performed more strongly, the application body 5 advances to a position where the large diameter portion 5b faces the shaft cylinder tip opening 4 (see FIG. 2). At this time, the outer surface of the large diameter portion 5b It slides in contact with the inner wall of the tip opening 4. By this sliding, the application tool is peeled off or broken while the solidified product, gelled product, thickened product, etc. of the coating solution present in the coating solution outflow portion, which is the gap between the small-diameter portion 5a of the coating body 5 and the tip opening portion 4, are removed . Discharge to the outside.
[0023]
Next, when the pressure on the pressing member 11 is released, the valve opening body 9 and the valve body 7 are retracted to the position shown in FIG. 1 by the urging force of the elastic body 8, and the valve portion 7a and the seat portion 6a are liquid-tight. Circumferential abutment closes the valve mechanism.
[0024]
When the application body 5 moves backward and the application body small-diameter portion 5a and the shaft tube tip opening 4 face each other, a gap is formed between the application body small-diameter portion 5a and the inner wall of the shaft tube tip opening portion 4, and is temporarily inside the front shaft 3. The coating liquid that has been stored is supplied to the tip of the application body 5 to enable application.
[0025]
3 and 4 show a second embodiment of the present invention. In Example 2, the coated body 5 in Example 1 is made of natural fibers such as rabbits, horses, and pigs, synthetic resin fibers such as nylon, polyethylene terephthalate, and acrylic fibers, or the natural brush and synthetic resin brush. A large number of fibers such as those mixed with bristles converge in the longitudinal direction, and a brush-shaped application part 511 in which one end face is fixed by a method such as heat welding or adhesion, and a bottomed cylindrical shape with a convex part on the bottom outer wall An applicator holding member 512 provided with 512a, and the fixed end surface of the brush-shaped applicator 511 is inserted and fixed into the bottomed cylindrical portion of the applicator-holding member 512 to form the applicator 51, and the brush-shaped applicator Example 512 is the same as Example 1 except that the tip part of 512 is a small diameter part 511a and the rear part is a large diameter part 511b. Since the application body 51 has a large amount of deformation in the radial direction compared to the first embodiment, the diameter of the application body large diameter portion 511b can be made larger than the inner diameter of the shaft tube tip opening portion 41 in the second embodiment. The resistance when the coating body large diameter portion 511b comes into contact with the inner wall of the shaft tube tip opening 41 increases, and the solidified product or gel of the coating liquid generated between the coating body small diameter portion 511a and the tube shaft tip opening 41 inner wall. It is possible to discharge the chemicals and thickened products more reliably to the outside of the applicator (see FIG. 4). Although not shown, when a plurality of vertical ribs and the like are provided in the longitudinal direction on the inner wall of the shaft tube tip opening 41 for the purpose of preventing lateral blurring of the application body 51, a brush-like application portion 511 is formed. Since the brush enters between the vertical ribs when sliding, the solidified product, gelled product, and viscous product generated between the vertical ribs can be discharged to the outside of the front shaft relatively easily.
[0026]
FIG. 5 shows a third embodiment of the present invention. Example 3 is the same as Example 1 except that the application body 5 in Example 1 is formed of a small-diameter part 52a that is an application part and a large-diameter part 52b that is an application part holding member. The small diameter portion 52a and the large diameter portion 52b are fixed by inserting the convex portion at the rear end of the small diameter portion 52a into the concave portion at the front end of the large diameter portion. In this embodiment, compared with the other embodiments described above, the large-diameter portion 52b, which is an application portion holding member, protrudes from the shaft tube tip opening portion 42 at the time of knocking. This has the effect that the application part can be easily replaced.
[0027]
In the above-described embodiments, the rear end knock type applicator is shown. However, as described in the prior art, the knock type may be a side knock type.
[0028]
【The invention's effect】
As described above in detail, the knock-type applicator according to the present invention discharges the dried solids of the coating liquid in the coating liquid outflow path to the outside of the coating tool by knocking even after long-term storage. Therefore, it is excellent without causing the problem of a decrease in the discharge amount of the coating liquid.
[Brief description of the drawings]
1 is a longitudinal cross-sectional view of a first embodiment. FIG. 2 is a vertical cross-sectional view of a main portion at the time of knocking of the first embodiment. FIG. 3 is a vertical cross-sectional view of a main portion of the second embodiment. Fig. 5 is a vertical cross-sectional view of the main part of Fig. 5;
DESCRIPTION OF SYMBOLS 1 Rear axis | shaft 2 Coating liquid storage chamber 3 Front axis | shaft 4,41,42 Shaft cylinder front-end | tip opening part 5,51,52 Application body 5a, 511a, 52a Small diameter part 5b, 511b, 52b Large diameter part 6 Lid body 7 Valve body 8 Projectile

Claims (1)

An application body is slidably disposed in a tip opening of a shaft cylinder in which a coating liquid storage portion is formed. A valve mechanism is disposed between the application body and the storage portion, and the application body is connected to the valve body. In a knock type applicator that is provided in series and further transmits the operation of the movable part to the valve body, the application body and the valve body are operated by knocking the movable member to open and close the valve mechanism. with, also, the coating body, and a small diameter portion than Jikuto distal opening inner diameter becomes more equivalent to slightly larger large diameter portion, the small diameter portion is barrel tip of the non-knocking operation and sometimes applying part of said movable member confronting the opening, whereas, knock-type applicator, wherein the large diameter portion of the applicator body is no to face the barrel tip opening during knocking operation of the movable member.

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