JP2000279870A - Applicator with valve - Google Patents

Abstract

(57) [Problem] To provide a valve-equipped applicator capable of obtaining a sufficient amount of application and capable of applying a wide width and a narrow width. SOLUTION: In a front shaft fixed to the front of a shaft main body which has a valve body on an inner surface and a front end surface and has a major axis and a minor axis on which a liquid is stored, a valve section is formed by a resilient member. A valve-applying device in which a valve body is disposed so as to be in pressure contact with the seat portion and project from the front end surface of the front shaft, a plurality of valve body front end portions are disposed on the front surface of the front shaft, By providing a retraction restricting means in the front shaft so that the front end of the front shaft protrudes from the front end of the front shaft at the time of retreat, a valve is formed which forms a liquid pool between the surface to be coated and the front end surface of the front shaft. Applicator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve-equipped applicator for applying a liquid such as a correction liquid, a paste, an ink, a paint, a cosmetic liquid, etc., to a surface to be coated, and more particularly to an applicator with a wide or narrow width. It concerns a possible applicator with a valve.

[0002]

2. Description of the Related Art Conventionally, many applicators capable of applying a wide width are known. Typical examples thereof are described in JP-A-8-238884, and JP-A-7-311.
No. 71 publication. JP-A-8-238884
The invention of the above publication discloses a writing instrument or applicator in which a plurality of application balls are arranged on a tip chip, and a squeegee for smoothing a liquid is arranged in a portion between the balls. Further, the invention of Japanese Utility Model Application Laid-Open No. Hei 7-31171 shows an applicator in which projections are formed on both sides of the front end of a front shaft of a pressing core.

[0003]

Problems to be Solved by the Invention
In the invention of No. 4, since the ball is arranged on the tip chip, the liquid is not sufficiently discharged, and the discharged liquid is squeegeeed (extended), so that the amount of coating on the surface to be coated is insufficient. In particular, there is room for improvement in application to applicators that require high concealment properties such as correction fluids. Furthermore, in the present invention, the application of a narrow width can be obtained only as much as the handwriting of a ballpoint pen, or the application is difficult and there is room for improvement. In addition, actual opening flat 7-31171
The idea of No. 1 is that when a wide width is applied, the space between the surface to be coated and the projections can be used as a liquid pool, so that the amount of coating on the surface to be coated can be relatively large, but when the width is small. However, there has been a problem that projections formed on both sides of the tip of the tip shaft of the pressing core become obstacles, making it difficult to apply a narrow width.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an applicator with a valve that can provide a sufficient amount of application and that can apply a wide width and a narrow width. A valve portion is pressed against a seat portion of the front shaft by a resilient member in a front shaft fixed to the front of a shaft main body containing a liquid, having a major axis and a minor axis on a distal end surface. In a valve-equipped applicator in which a valve body is arranged so that a tip portion protrudes from a tip surface of a tip shaft,
By disposing a plurality of valve body tips on the tip surface of the front shaft and providing retreating restriction means in the front shaft so that the front end of the valve body projects from the front end of the front shaft when retreating, The gist of the present invention is a valve-equipped applicator in which a gap serving as a liquid reservoir is formed between the tip and the front end surface of the spindle.

Hereinafter, the present invention will be described in detail. 1 to 10 show a first embodiment of the present invention.
Is a shaft body made of a synthetic resin such as polypropylene, nylon, polybutylene terephthalate, or polyethylene, or a metal such as aluminum, stainless steel, or brass, which contains liquids such as correction fluid, glue, ink, paint, and cosmetic fluid. Has an opening 2 at one end. In the front portion of the shaft main body 1, the rear of a valve body 11 described later and a resilient member 13 are provided.
Are provided with a plurality of (two in the figure) recessed portions 5 having an inclined step portion 3 disposed at the rear of the device and a bottom portion 4. When the liquid to be stored has a high viscosity, the discharge amount may be insufficient only by opening the valve body 11 as described later. In such a case, the shaft body 1 presses the side surface. It is preferable to select a material having an elastic restoring force so that the material can be restored.

Reference numeral 6 denotes a front shaft made of metal or synthetic resin fixed to the tip of the shaft main body 1. The tip shaft 6 is
It has a plurality of (two in the figure) seats 7 and a discharge hole 9 connected to the seats 7 and opened in the front end face 8. Note that the rear portions of the plurality of discharge holes 9 are continuous with the concave portion 5 of the shaft main body 1 via a space 10 where both are connected. Also, the tip surface 8 of the tip shaft 6
In this example, the shape of is a rectangular shape having a major axis and a minor axis as shown in FIG. 2, but as shown in FIG. 10, an oval shape (x is the major axis and y is the minor axis in the figure) Or it may be elliptical. In FIG. 2, arrows A, B, C, and D will be described later. Reference numeral 11 denotes a valve body. The valve body 11 has a valve portion 12, and a resilient member 13 (the rear end of the resilient member 13 is (Which engages with the inclined step portion 3 of the concave portion 5) so that the valve portion 12 is pressed against the seat portion 7 of the front shaft 6.

[0007] In the present invention, the valve body 11 further has the following features. In use, the valve body tip portion 14 is pressed against the application surface P to compress the repelling member 13 and the valve portion 12
Is released (opened), or when the viscosity of the liquid to be used is high, the valve body 11 is opened and the shaft main body 1 is opened.
Is pressed, the liquid contained in the shaft body 1 passes through the opening 2 of the shaft body 1, the space 10, the valve opening, and the gap between the discharge hole 9 of the front shaft 6 and the valve body 11. The valve body 11 of the present invention is provided on the surface to be coated.
4, when the valve body 11 retreats last, the valve body 1
Retraction restricting means is provided in the front shaft 6 so that the one front end portion 14 protrudes from the front end surface 8 of the front shaft 6. In the present embodiment, a specific example of the retraction restricting means is such that the rear end of the valve body 11 abuts on the bottom 4 of the recess 5 of the shaft body 1. By this retreat restricting means, a gap 15 serving as a liquid pool can be formed between the surface to be coated and the front end surface 8 of the front shaft 6 during coating. Note that, as shown in FIG. 11, the retraction restricting means of the valve element 11 can be used in FIGS. 12 and 13 even when the large diameter portion of the valve element 11 is engaged with the distal end surface of the shaft body 1 at the time of retraction. As shown,
The resilient member 13 for urging the valve body 11 forward becomes a compression limit during the backward movement of the valve body distal end portion 14, and even if the valve body 11 cannot move backward, it is provided in the front shaft 6. You may.

Next, a coating method will be described with reference to FIGS. In FIG. 2, the direction of arrow A or B is referred to as a minor axis direction, and the direction of arrow C or D is referred to as a major axis direction. 5 and 6
FIG. 4 is an explanatory diagram when coating is performed over a wide width. FIG. 5 shows a state in which the tip end surface 8 of the tip shaft 6 stands upright with respect to the coating surface P (the contact point with the coating surface P is a plurality of valve body tip portions 14) and moves in the short diameter direction (the direction of the arrow in the drawing). 2), the liquid accumulated in the gap 15 between the application surface P and the tip end surface 8 is applied to the application surface P. In this case, the application width is substantially equal to the major axis of the distal end surface 8 of the front shaft 6. FIG. 6 shows that the tip end surface 8 of the tip shaft 6 is inclined in the short diameter direction with respect to the coating surface P (the contact points with the coating surface P are a plurality of valve element tip portions 14 and a long diameter edge portion). By moving in the minor axis direction (the direction of the arrow in the figure), the liquid accumulated in the gap 15 between the application surface P and the inclined front end surface 8 is applied to the application surface P. The coating width in this case is also substantially equal to the major axis of the tip end face 8 of the front shaft 6. FIGS. 7 to 9 are explanatory diagrams when coating is performed in a narrow width. FIG. 7 shows a state in which the tip end surface 8 of the tip shaft 6 stands upright with respect to the coating surface P (the contact point with the coating surface P is a plurality of valve body tip portions 14) and moves in the major axis direction (the direction of the arrow in the figure).
The gap 1 between the coating surface P and the tip surface 8 is
5 is applied to the application surface P. In this case, the application width is substantially equal to the minor diameter of the front end surface 8 of the front shaft 6. FIG. 8 shows that the tip end surface 8 of the tip shaft 6 is inclined in the major axis direction with respect to the coating surface P (the contact point with the coating surface P is 1 point).
The liquid accumulated in the gap 15 between the surface P to be coated and the inclined distal end face 8 by moving in the minor axis direction (in the direction of the arrow in the figure) by moving in the minor axis direction (to become the short-diameter edge portion with the valve element distal end portions 14). Is applied to the application surface P. Note that the coating width in this case is
Is substantially equal to the distance between the edge of the distal end surface 8 and the valve element distal end 14. FIG. 9 shows that the tip surface 8 of the tip shaft 6 is inclined in the major axis direction with respect to the coating surface P (the contact point with the coating surface P is one valve element tip portion 14 and a short-diameter edge portion). By moving in the major axis direction (in the direction of the arrow in the figure), the liquid accumulated in the gap 15 between the application surface P and the inclined front end surface 8 is applied to the application surface P. In this case, the coating width is substantially equal to the minor diameter of the front end surface 8 of the front shaft 6.

FIGS. 14 and 15 show another embodiment. FIG. 14 shows an example in which the shape of the distal end surface 7 of the front shaft 6 is an elliptical shape, and three valve element distal portions 14 are arranged in parallel. Case
FIG. 15 shows an example in which the shape of the distal end surface 7 of the tip shaft 6 is triangular, the corners are R-shaped, and three valve element distal portions 14 are arranged (x is a long diameter, y is a short diameter, z Is the width between the major axis and the minor axis). The coating method may be performed according to the method described above.

FIG. 16 shows still another embodiment, which is a big difference from the first embodiment in that the rear part of the valve body 11 is connected and integrally formed. Incidentally, the retraction restricting means of the valve element 11 in this example is similar to that of FIG.
The connecting portion of the valve body 11 engages with the distal end surface of the shaft main body 1. The application in this embodiment may be performed in the same manner as in the first embodiment. Also, FIGS. 11, 12, 14,
Also in FIG. 15, the rear part of the valve body 11 may be integrally formed as in the present embodiment.

FIGS. 17 and 18 show another embodiment. In addition, basically, the same parts as those in the previous example are denoted by the same reference numerals. The main difference between the present embodiment and the embodiment of FIGS. 1 to 4 lies in the center axis. That is, the center shaft 16 has a flange portion 17 disposed between the opening 2 of the shaft main body 1 and the front shaft 6, and the rear portion thereof is located within the front shaft 6 and the opening 2 of the shaft main body 1. Have been placed. In the drawing, the center shaft 16 has a rear portion of the flange portion 17 in contact with the opening 2 of the shaft main body 1 and a front end thereof in contact with the front inner step portion 6a of the front shaft 6, whereby the shaft main body 1 and Although attached to the front shaft 6, the front portion of the flange portion 17 is brought into contact with the intermediate inner surface step 6f of the front shaft 6 so that the flange portion 17 is located between the opening 2 of the shaft main body 1 and the front shaft 6. May be attached to the shaft main body 1 and the front shaft 6 by sandwiching them. A fastening portion 6 of the front shaft 6 is provided behind the opening 2 of the shaft body 1 (in front of the shaft body).
b, and has a fastening portion 1a for fastening.
When the connecting portion 1b between the a and the opening 2 is formed as a bending portion, when an excessive load is applied to the valve body 11 at the time of application, the excessive load is absorbed by the elastic force, and the distal end portion of the valve body 11 14
This is preferable because breakage of the film is prevented. In the figure,
6c is a through hole provided in the front part of the front shaft 6, and 16a is the center shaft 1.
A distal end portion 11a of the valve body 11a is a flange formed at a substantially intermediate portion of the valve body 11 (an engagement end surface of the resilient member 13 and, when the valve body 11 is retracted, abuts against a distal end portion 16a of the central shaft 16). 1
Reference numeral 18 denotes a through hole (located behind the valve body 11) provided in the center shaft 16, and reference numeral 19 denotes a space of the center shaft 16. Also, in the drawing, the rear end of the center shaft 16 is extended inside the shaft main body 1, but the reason is that in the event that the liquid partially solidifies, the solidified liquid flows in the valve body direction. When the valve moves, it blocks the outflow passage of the liquid. Therefore, in use, when the tip of the valve body is turned downward, the solidified liquid is blocked around the extended central shaft 16.

Next, an assembling method will be described. First, the elastic member 13 is inserted into the through hole 6c of the front shaft 6 from behind the front shaft 6.
Is inserted into the valve body 11 of the valve body 11, and the valve body front end portion 14 is made to protrude from the front end surface 8 of the front shaft 6. And valve body 1
Then, the front shaft 6, the valve body 11, and the center shaft 16 are formed into a cassette. Thereafter, the cassette is fixed to the shaft main body 1 by fixing the fixing portion 1a of the shaft main body 1 containing the liquid and the fixing portion 6b of the front shaft 6. After inserting the valve body 11 on which the repelling member 13 is disposed into the through hole 18 of the central shaft 16, the front shaft 6 may be press-fitted and fixed to the central shaft 16 to form a cassette. In short, according to the present invention, after the front shaft 6, the valve body 11, and the center shaft 16 are made into a cassette, they may be fixed to the shaft main body 1, so that the assembling property is excellent.

The liquid application method in this embodiment is basically the same as that in the previous embodiment.
When the valve body tip 14 is pressed against the surface P to be applied to compress the resilient member 13, the contact of the valve 12 with the seat 7 is released (valve opening) or when the viscosity of the liquid used is high. When the side surface of the shaft main body 1 is pressed together with the opening of the valve body 11, the liquid stored in the shaft main body 1 reaches the space 19 of the center shaft 16 from the rear portion of the center shaft 16 through the through hole 18 of the center shaft 16, Further, the liquid is discharged to the distal end face 8 of the front shaft 6 through the space 6 of the front shaft 6, the through hole 6 c of the front shaft 6, the valve opening, and the gap between the discharge hole 9 of the front shaft 6 and the valve body 11. However, the valve body 11 has a tip 14 on its surface to be coated.
When the valve body 11 is pressed, the valve body 11
Is provided with a retraction restricting means so that the front end portion 14 protrudes from the front end surface 8 of the front shaft 6.
A gap 15 serving as a liquid pool can be formed between the front end surface 8 and the tip end surface 8. Therefore, application of a wide width and application of a narrow width are possible as in the previous example. In use, the valve body 11 moves rearward, and the rearward movement is prevented by the flange portion 11a abutting on the distal end portion 16a of the center shaft 16;
Has a flange portion 17 disposed between the opening 2 of the shaft main body 1 and the front shaft 6, so that it does not retract.

FIGS. 19 to 21 show another embodiment. In addition, basically, the same portions as those in the examples of FIGS. 1 to 4 are denoted by the same reference numerals. The main difference between the present embodiment and the embodiment of FIGS. 1 to 4 lies in the leading shaft portion. That is, the front shaft 6 is made of a synthetic resin, and a concave portion 6e is formed on both long side surfaces 6d of the corresponding position of the seat portion 7 at the front end portion of the front shaft 6, and the seat portion is formed by the formation of the concave portion 6e. 7 can be made as uniform as possible (see FIG. 21). The concave 6e
As shown in FIG. 22, the formation position of
Figure 2
As shown in FIG. 3, a gentle concave portion 6e is formed.
As shown in FIG. 4, a concave portion 6e formed concentrically with the seat portion 7 and the valve portion may be formed. In this example, the application method is the same as that of the examples of FIGS. 1 to 4 and the description is omitted. However, application with a wide width and application with a narrow width is possible, and the front shaft is made of synthetic resin. Since it is a valve-applied applicator having concave portions formed on both sides of the major axis at the position corresponding to the seat portion of the tip end of the front shaft, the thickness of the valve seat forming portion of the front shaft can be made as uniform as possible, thus not being used. In this case, the sealing between the valve portion and the valve seat portion can be improved as much as possible, and the liquid leakage can be prevented.

In the present invention, although the detailed description is omitted, the embodiment of FIG. 17 and the embodiment of FIG. 19 can be implemented in combination with the embodiments of FIGS. 1 to 5 and FIGS. It is of course possible to combine the embodiments with each other, such as combining the embodiment with the embodiment of FIG. Also, in each of the above examples, during early coating, the amount of liquid discharged is insufficient, and a dropout phenomenon occurs (a phenomenon in which two lines are formed after coating when the tip of the valve element is two).
May occur, but in order to prevent this, FIG.
5. As shown in FIG. 26, the gap S between the inner surface of the discharge hole 9 in which the valve element 11 is disposed and the outer surface of the valve element 11 may be increased toward the center so that the liquid can be easily discharged to the center. it can.
Further, by sufficiently discharging the application liquid to a portion near the center of the front end face 8 of the front shaft 6, the valve 11 is used as shown in FIG. The length of the wall 6g of the front shaft 6 that defines the front shaft 6 is reduced, and the length of the front shaft 6 is determined by the longitudinal length of the gap formed by the outer periphery of the front shaft 6 and the large-diameter portion 11b behind the valve portion 12 of the valve body 11. The length in the longitudinal direction of the gap formed by the wall 6g and the large diameter portion 11b of the valve body 11 can also be reduced.

[0016]

The valve-equipped applicator of the present invention has a valve body on the inner surface, a long diameter and a short diameter on the front end face, and is provided in the front shaft fixed to the front of the shaft body containing the liquid. A valve-applying device in which a valve portion is pressed against a seat portion of a front shaft by a resilient member and a valve body is disposed such that a front end portion protrudes from a front end surface of the front shaft. By disposing the distal end of the body, and by providing retraction restricting means in the front shaft so that the distal end of the valve body projects from the front end of the front shaft at the time of retreat, between the coated surface and the front end of the front shaft Since a gap serving as a liquid pool is formed, a sufficient amount of coating can be obtained by the gap of the liquid pool, and the leading end surface of the front shaft is set upright with respect to the surface to be coated and moved in the short diameter direction, or the surface to be coated is If the tip surface of the tip shaft is inclined in the minor axis direction and moved in the minor axis direction, it is possible to apply a wide width Rather, the tip surface of the front shaft is set upright with respect to the surface to be coated and moved in the long diameter direction, or the tip surface of the front shaft is tilted in the long diameter direction with respect to the coating surface and moved in the short diameter direction. In addition, there is an advantage that a narrow width coating can be performed by inclining the tip end surface of the tip shaft with respect to the coating surface in the major axis direction and moving the tip surface in the major axis direction. Furthermore, since the center shaft having the flange portion disposed between the opening portion of the shaft main body and the front shaft and having the opening end serving as the valve body retraction restricting means is disposed in the front shaft and the opening portion of the shaft main body. Since the front shaft, the valve body, and the center shaft are formed into a cassette and then fixed to the shaft main body, there is an advantage that the assemblability is excellent. Furthermore, since the front shaft is made of synthetic resin and recesses are formed on both long side surfaces of the front shaft front end corresponding to the seat portion, the thickness of the valve seat formation portion of the front shaft can be made as uniform as possible. Accordingly, there is an advantage that the sealing performance between the valve portion and the valve seat portion when not in use can be improved as much as possible, and liquid leakage can be prevented.

[Brief description of the drawings]

FIG. 1 is a plan view showing a main part of an applicator with a valve according to the present invention.

FIG. 2 is an end view of the front shaft as viewed from the front in FIG. 1;

FIG. 3 is a longitudinal sectional view of FIG. 1;

FIG. 4 is a longitudinal sectional view showing a state in which the valve body is retracted.

FIG. 5 is an explanatory diagram of a coating state.

FIG. 6 is an explanatory diagram of a coating state.

FIG. 7 is an explanatory diagram of a coating state.

FIG. 8 is an explanatory diagram of a coating state.

FIG. 9 is an explanatory diagram of a coating state.

FIG. 10 is a diagram corresponding to FIG. 2, showing another embodiment.

FIG. 11 is a longitudinal sectional view of another embodiment showing a state in which the valve body is retracted.

FIG. 12 is a longitudinal sectional view of a main part showing still another embodiment.

FIG. 13 is a longitudinal sectional view showing a state in which the valve body of FIG. 12 is retracted.

FIG. 14 is a diagram corresponding to FIG. 2, showing another embodiment.

FIG. 15 is a view corresponding to FIG. 2, showing still another embodiment.

FIG. 16 is a longitudinal sectional view of a main part showing still another embodiment.

FIG. 17 is a longitudinal sectional view of a main part showing still another embodiment.

FIG. 18 is a view showing the applied state in which the valve body of FIG. 17 is retracted.

FIG. 19 is a perspective view of a main part showing still another embodiment.

FIG. 20 is a longitudinal sectional view of a main part showing still another embodiment.

FIG. 21 is a sectional view taken along line EE of FIG. 20;

FIG. 22 is a perspective view of a main part showing still another embodiment.

FIG. 23 is a view corresponding to FIG. 21 showing still another embodiment.

FIG. 24 is a view corresponding to FIG. 21 and showing still another embodiment.

FIG. 25 is a view corresponding to FIG. 3, showing still another embodiment.

FIG. 26 is an end view as viewed from the front in FIG. 25;

FIG. 27 is a longitudinal sectional view showing still another embodiment.

[Explanation of symbols]

 Reference Signs List 1 shaft main body 1a fastening part 1b connecting part 2 opening 3 inclined step part 4 bottom part 5 recessed part 6 front shaft 6a front shaft front inner surface step part 6b fastening part 6c through hole 6d long side surface part 6e concave part 6f Intermediate inner step 6g Tip shaft wall 7 Seat 8 Tip surface 9 Discharge hole 10 Space 11 Valve 11a Flange 11b Large diameter portion behind valve of valve 12 Valve 13 Repellent member 14 Valve tip 15 Gap 16 Center shaft 16a Tip 17 Flange 18 Through hole 19 Space P Coated surface S Gap

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B43M 11/06 B43K 8/02 B B65D 83/00 B65D 83/00 D

Claims (9)

[Claims] 1. A valve body having a valve body on an inner surface, a major axis and a minor axis on a distal end surface, and a valve portion attached to a front shaft fixed to the front of a shaft main body containing a liquid by an elastic member. In a valve-applied applicator in which a valve element is arranged so as to be in pressure contact with a seat portion of a shaft and project a distal end portion from a distal end surface of a front shaft, a plurality of valve body distal portions are disposed on the distal end surface of the front shaft. A valve in which a clearance that forms a liquid pool is formed between the surface to be coated and the front end surface of the front shaft by providing retraction restricting means in the front shaft so that the front end of the body protrudes from the front end of the front shaft when the front end is retracted. Coating tool. 2. A shaft having a flange disposed between an opening of a shaft main body and a front shaft, and having an opening end serving as a valve body retraction restricting means, inside the front shaft and the opening of the shaft main body. The valve-equipped applicator according to claim 1, which is disposed. 3. The valve-equipped applicator according to claim 2, wherein a rear portion of the flange portion of the central shaft is brought into contact with the opening of the shaft main body, and a front end of the central shaft is brought into contact with the step portion on the front inner surface of the front shaft. 4. The valve-equipped applicator according to claim 2, wherein the rear end of the center shaft is extended into the shaft main body. 5. The valve-equipped applicator according to claim 2, wherein in the shaft main body, a connecting portion between the fastening portion with the front shaft and the opening is a flexible portion. 6. The front shaft is made of a synthetic resin, and a concave portion is formed on both long side surfaces of the front end of the front shaft corresponding to the seat.
An applicator with a valve according to claim 5. 7. The valve-equipped applicator according to claim 1, wherein two end portions of the valve body are formed. 8. The valve-equipped applicator according to claim 1, wherein three end portions of the valve body are formed. 9. The valve-equipped applicator according to claim 1, wherein a rear portion of the valve body is integrally formed.