JPH07265780A - Coating tool - Google Patents

Abstract

PURPOSE:To control the discharge amount in liquid freely and delicately and improve the coating performance by arranging a valve mechanism consisting of a valve seat component with opening and another valve seat component for opening and closing the opening in compliance with pressures in the liquid discharge direction and the air invasion direction. CONSTITUTION:A cylindrical container 2 with a liquid storage chamber 1 inside is provided with elasticity to be contracted by pressurizing, and a cap 4, an outer pipe 5 and an inner pipe 6 are installed on an opening component 3. A cylindrical section 11 as a pressing body for moving the cap 4 in the open state is installed on a connecting shaft 8, and a spherical valve seat component 13 is stored in an inner opening 12 of the cylindrical section 11. The valve seat component 13 is energized forward by an elastic body 14 and protected from springing out by a valve seat component 15 fitted on the connecting shaft 8. On the other hand, a comb body 9 is fitted on a component having the elastic body 14 and the valve component 13 in the inner opening 12 of the cylindrical section 11 on which the valve seat component 15 is fitted after storing the above items.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention stores liquids such as hair dyeing liquid, writing ink, paints, handwriting correction liquid and shoe ink, which are contained in a liquid containing chamber having a flexible wall portion which can be restored and deformed. The present invention relates to an applicator adapted to pressurize and discharge a storage chamber.

[0002]

2. Description of the Related Art As an applicator of the above type, for example,
A comparatively simple structure, such as a roller or a meshed porous body, is attached to the mouth of a container body for containing a liquid, as seen in a glue applicator, or the actual utility model publication 55- 32
No. 785 and Japanese Utility Model Publication No. 2-11193, which use a double pipe structure for preventing liquid leakage due to internal pressure fluctuations, and Japanese Utility Model Publication No. 5-13580, etc. For example, the valve portion at the tip of the applicator body is opened while pressurizing the wall portion of the storage chamber.
There is one such as disclosed in Japanese Patent Publication No. 75881 that displaces the valve body in the direction away from the valve seat via the wall portion of the liquid storage chamber to be pressurized.

[0003]

In the above example, the liquid may be excessively ejected in some cases. In this respect, the above-mentioned Japanese Utility Model Publication No. 5-13580 and Japanese Utility Model Publication 3-
In Japanese Patent No. 75881 and the like, a member that regulates the amount of deformation of the wall of the liquid storage chamber, which pressurizes, is used, but this is by no means sufficient. For example, as the liquid is consumed, the liquid ejection property changes depending on the amount of air accumulated in the liquid storage chamber even if the liquid is consumed to the same degree. If the amount of deformation is regulated so that it becomes suitable at the time when the liquid is considerably consumed, the amount of deformation will be the same as that which is not regulated in the initial stage. However, this suitability diminishes as the liquid is consumed. Rather,
This also gives stress to the unconscious desire to pressurize freely, and damage to the wall of the liquid storage chamber or the regulating member due to excessive pressurization may occur.

[0004]

By reducing the cross-sectional area of at least a part of the liquid discharge passage, even if the liquid storage chamber is pressurized, the liquid corresponding to the pressurization amount is not instantaneously discharged. That said, due to a decrease in internal pressure when the wall portion of the liquid storage chamber is restored, air intrudes into the liquid storage chamber in substitution for the discharged liquid. Increasing the resistance to the invasion of the air is, for example, Considering the case where the pressure is released once and then the pressure is continuously applied, it is never preferable. That is, it is desirable that the air entry path have a sufficiently large cross-sectional area so that the entry of air is as rapid as possible. Therefore, the valve mechanism will be utilized.
Normally, the valve mechanism in the applicator is provided so that the valve is opened when liquid ejection is desired, but rather the reverse idea is such that the valve is closed when liquid ejection is desired. However, this valve is closed so that the above-mentioned liquid discharge passage with a small cross-sectional area, which prevents the liquid corresponding to the pressurization amount from being discharged instantaneously even when the liquid storage chamber is pressurized, and thus a small gap through which the liquid can pass. To secure.

On the other hand, there are two means. One is that the valve does not completely close even when the valve member comes into contact with the valve seat member. Here, since such a thing is not a valve mechanism correctly, it may be more accurate that the constituent members are valve seat members and valve body members. That is,
The first means is to close the hole of the valve-seat member by the valve-seat member, leaving a small gap through which the liquid can pass, when pressure is applied in the direction of discharging the liquid.
Of course, when pressure is applied to the liquid storage chamber in a direction that allows air to enter, the valve body member opens the hole of the valve seat member. Then, another means is that even if the valves are closed, there are parallel small spaces through which liquid can pass. While the above-mentioned first means uses the hole of the valve-like member as both the liquid discharge passage and the air entry passage,
The hole of the valve seat member will be used only as an air entry path.

Therefore, according to the present invention, in an applicator in which “a liquid contained in a liquid containing chamber having a flexible wall capable of restoring and deforming is discharged by pressurizing the liquid containing chamber, a valve having a hole is provided. The seat-like member and the hole of the valve seat-like member are closed by leaving a small gap through which the liquid can pass when pressure in the direction of ejecting the liquid is applied, and open when pressure in the direction of allowing air to enter the liquid storage chamber is applied. "Applicator having a valve mechanism member composed of a valve body member and having a hole of a valve seat member as a liquid discharge path and an air intrusion path" In the applicator configured to pressurize the liquid storage chamber to discharge the liquid stored in the liquid storage chamber having the flexible wall portion, the valve seat member having the hole and the hole of the valve seat member are
A valve mechanism unit formed of a valve body member that closes when pressure in the direction of ejecting liquid is applied and opens when pressure in the direction of allowing air to enter the liquid storage chamber, and in parallel with this valve mechanism unit,
A second gist is an applicator having a small gap through which a liquid can pass, in which the hole of the valve seat member serves only as an air entry path.

[0007]

EXAMPLE An example will be described with reference to the attached FIGS.
It is an example of what is used as a hair dyeing tool as shown in the longitudinal sectional view of FIG. 1, the side view of FIG. 2, and the front view of FIG.

The cylindrical container 2 having the liquid storage chamber 1 inside is
It has elasticity so that it can contract when a force is applied. For example, a blow molded product of synthetic resin may be used. A mouth member 3 is attached to the cylindrical container 1, and a stopper body 4, and an outer pipe 5 and an inner pipe 6 extending over substantially the entire length of the liquid storage chamber 2 are attached to the mouth member 3. Between the plug body 4 and the inner pipe 6, there is a gap of sufficient cross section for passing liquid and air, but never large, so that FIG. 1 is in the open state. The closed state as shown in FIG. 4 is changed by the movable press-fitting into the mouth member 3. Further, the outer pipe 5 has a rear end portion (right end portion in FIG. 1) sealed with a tail plug 7, and as shown in FIG.
A gap is provided between the front end portion and the mouth member 3. When an external force is applied to the cylindrical container 1, the liquid in the liquid storage chamber 2 enters the outer pipe 5, passes from the rear end of the inner pipe 6 through the inner hole of the inner pipe 6, and then out of the mouth member 3. Spilled,
Also, when the external force on the cylindrical container 1 is released, the flow reverses,
The ambient air enters the liquid storage chamber 2 in place of the consumed liquid. Here, these are collectively as one replaceable cartridge.

The cartridge is detachably attached so that the joint shaft 8, the comb tooth body 9 inserted from the front of the joint shaft 8 and the comb tooth body 9 do not fall off from the joint shaft 8. It is an assembly product with the exterior body 10 fitted onto the joint shaft 8. 6 and 7
As shown in FIG. 1, these are prevented from rotating relative to each other. Further, as shown in FIGS. 2 and 3, the exterior body 10 is provided with an outer shape irregularity that serves as a guide in the gripping direction.

The joint shaft 8 is provided with a cartridge mounting portion and a cylindrical portion 11 protruding rearward as a pressing body for moving the plug body 4 to the opened state. The inner hole 12 of the cylindrical portion 11 serves as a passage (and an air passage) for the liquid led out from the mouth member 3, and the spherical valve body member 13 is accommodated in the inner hole 12. The valve-like member 13 is biased forward by a resilient member 14 such as a coil spring, and is prevented from popping out by a valve-seat member 15 fitted to the joint shaft 8. Here, the forward biasing force of the elastic body 14 may be extremely small. The valve body-like member 13 may be retracted due to inertia generated by a light impact during carrying.
The elastic body 14 is arranged so that the valve-like member 13 is positioned as close as possible to the portion of the hole 16 of the valve-seat member 15, and, of course, air is passed through the hole 16 of the valve-seat member 15. When the vehicle enters, the valve body member 13 is moved to secure a sufficient amount of the air entry path.

In FIG. 1, the abutment between the valve body member 13 and the valve seat member 15 is as if the hole 16 of the valve seat member 15 is closed. But in reality,
As described above, when pressure is applied to the cylindrical container 2, a small gap is formed so that liquid corresponding to this pressure is not instantaneously discharged from the liquid storage chamber 1, but is discharged. For example, at least one of the valve body member 13 and the valve seat member 15 may be formed into a satin-finished surface, or a small protrusion formed by molding may be formed on the surface. Valve body member 13
In the case of using a spherical shape as shown in the drawing, or a conical shape, the hole shape of the valve seat-like member that abuts this may also be made somewhat non-circular. It is possible to form such a small gap.
Desirably, if the force that pressurizes the cylindrical container 2 increases,
Keep this small gap small. As a result, it becomes possible to absorb the change in the discharge amount of the liquid due to the strength of the applied pressure, at least to some extent. For that purpose, the elastic deformation of the members such as the protrusions in the satin finish, the small protrusions by molding, or the slight disagreement in shape may be effectively used.

The comb tooth body 9 has an inner hole 12 of a cylindrical portion 11 of the joint shaft 8.
The elastic body 14 and the valve-like member 13 may be housed in the housing, and then the valve-seat-like member 15 may be inserted into the fitted member, but the applicator 17 and the core 18 are housed inside. I am doing it. The application body 17 is made of, for example, a continuous porous material such as a sponge, a sintered body, or a fiber converging body, and holds the liquid that has passed through the holes 16 of the valve seat-like member 15 by a capillary force to form a comb tooth portion 19. Prepare for use. It is easy to appropriately deform and accommodate a relatively soft one, and the one shown in the figure is also prepared as a rod. Also, in the core 18,
As shown in one shape in FIG. 8, a mounting portion 20 for the applicator 7 and an air passage 21 are provided. As shown in FIG. 9, the hole 16 of the valve seat-like member 15 is covered with the rear end portion of the applicator 17 (the circle drawn by the dotted line in FIG. 9 is the hole 16 of the valve seat-like member 15). The air enters through the rear end portion of the applicator 17, so there is no need to worry that the air may be prevented from entering. Rather, the valve seat member 15
When the air passage 21 is located in the opening portion of the hole 16 of FIG. 2 with a too large area, it is like the illustrated air passage 21 in which the opening end is provided at the tip end portion as much as possible, as shown in FIGS. However, the liquid that has passed through the holes 16 is
Since it comes out through the air passage 21 more positively than it is absorbed into the air passage 21, the liquid is retained in the portion of the air passage 21 where the capillary force is relatively strong, so that the applicator 17
In accordance with the consumption of the liquid in the
It is preferable that the cylindrical container 2 is not frequently pressurized by supplying it to the container 7, but it is preferable to pay sufficient attention to it. Incidentally, the provision of the open end of the air passage 21 at the tip portion satisfies a highly uniform wide coating, and foaming and cracking of the liquid, which is inconvenient for coating on the surface of the coating body 17 due to the pressurization of the tubular container 1, are caused. It is extremely preferable to suppress contamination in the vicinity due to the scattering of the liquid as much as possible.

Various modifications can be made to the above. For example, a hard cylinder having a partially elastic wall may be used as the cylindrical container 1. Further, it is possible to directly fix the comb tooth body 9 to the joint shaft 8 and omit the exterior body 10. The above-mentioned outer shape irregularity may be provided in the joint shaft 8 if necessary. Furthermore, the shape of the valve-like member 13 may be proper as shown in FIG. Furthermore, the elastic member can be omitted. For example, as shown in FIG. 13 using a valve-like member 13 having a resilient portion,
As shown in FIG. 14 by way of example, the gap between the inner hole 12 and the valve body member 13 is sufficiently secured as a passage for air, and the displaceable range of the valve seat member 15 in the hole 16 is made sufficiently small. Alternatively, as shown in FIGS. 15 and 16, for example, the valve body member 13 made of synthetic resin or the like may be attached to the valve seat member 15 so as to abut on it with self-elasticity. Incidentally, FIG.
4, reference numeral 22 indicates the presence of a suitable number of radial grooves. Furthermore, the valve-seat member 15 does not necessarily have to be fixed to the joint shaft 8. Even in the case shown in the figure, the core 18 inserted in the comb tooth body 9 can prevent the core from falling off, and the valve seat member 15 can be integrated with the core 18. Figure 1
5 and FIG. 16, the valve body member 13 may be directly attached to the core 18.

The above description relates to the first aspect of the present invention. In the second aspect, the valve body member 13 is a valve body member, the valve seat member 15 is a valve seat member in the above description, and even if the valve is closed, liquid is generated by a small gap provided separately. It suffices if the discharge passage can be secured. For example, it is as shown in FIG. FIG. 17 shows a cross section of a portion corresponding to FIG.
The contact between the valve body member 23 and the valve seat member 24 closes the hole 25 of the valve seat member 24. However, the liquid is discharged little by little even when the valve is closed due to the small gap 26 formed by the minute groove provided on the outer peripheral portion of the valve seat member 24. Incidentally, the point that the valve body member 23 moves upon the entry of air is the same as that described above. The small gap 26 can also be secured by providing a minute groove on the inner wall of the inner hole 12, for example. For example, a spiral shape may be used instead of the straight shape.

In addition to the above, various changes can be made without departing from the scope of the present invention. For example, an applicator other than the hair dyeing device may be used as appropriate. Instead of using a comb tooth body or the like, a brush may be provided as a coating destination. Further, a simpler structure may be adopted without using the outer pipe 5 and the inner pipe 6 attached to the mouth member 3 or the joint shaft 8. As mentioned above, the actual Kaihei 5-13
No. 580, etc., the one in which the valve portion at the tip of the applicator is opened while pressurizing the wall portion of the liquid storage chamber, and the one in Japanese Utility Model Laid-Open No. 3-75881.
Align the valve mechanism in a normal applicator that opens the valve when liquid is desired to be discharged, such as the one in which the valve element is displaced in the direction away from the valve seat via the wall of the liquid storage chamber to be pressurized. You may have. Furthermore, in the above-mentioned thing, although the valve body member 13 and the valve body member 23 were moved, the valve seat member 15 and the valve seat member 24 can also be moved. Besides, it is of course possible to have a cap.

[0016]

As described above, according to the applicator of the present invention, the user can freely pressurize the liquid container according to his or her will. At this time, it is also possible to avoid the abutting force that is subject to the regulation of pressurization. Moreover, it is possible to suppress excessive liquid ejection due to strong pressurization. In this type of applicator, it was difficult to finely adjust the discharge amount, but according to the present invention, such an adjustment is possible. Furthermore, the air is allowed to enter quickly. Therefore, it is possible to suppress as much as possible the case where the wall portion of the liquid container remains dented when the pressure is once released and then the pressure is continuously applied.

[Brief description of drawings]

FIG. 1 is a partially cutaway vertical sectional view for explaining an embodiment of the present invention.

FIG. 2 is a side view of the one shown in FIG.

FIG. 3 is a front view of the one shown in FIG.

FIG. 4 is a longitudinal sectional view of an essential part showing a state before assembling of the cartridge in FIG.

5 is a cross-sectional view taken along the line AA of FIG.

6 is a sectional view taken along line BB of FIG.

7 is a cross-sectional view taken along the line CC of FIG.

FIG. 8 is a perspective view showing an example of the shape of a core.

FIG. 9 is a sectional view taken along line DD of FIG.

10 is a cross-sectional view taken along the line EE of FIG.

11 is a sectional view taken along line FF of FIG.

FIG. 12 is a longitudinal sectional view of an essential part showing an example of a modification of the valve seat-like member portion in the one shown in FIG.

13 is a longitudinal sectional view of an essential part showing an example of a modification of the valve seat-like member portion in FIG.

FIG. 14 is a longitudinal cross-sectional view of a main part showing an example of a modification of the valve seat-like member portion in the one shown in FIG.

FIG. 15 is a longitudinal sectional view of an essential part showing an example of a modification of the valve seat-like member portion in the one shown in FIG. 1;

16 is a right side view of the valve-seat member in FIG.

FIG. 17 is a view for explaining another embodiment of the present invention.
5 is a longitudinal sectional view of an essential part equivalent to 5.

[Explanation of symbols]

 1 Liquid Storage Chamber 2 Cylindrical Container 3 Mouth Member 4 Outer Body 5 Outer Pipe 6 Inner Pipe 7 Tail Stopper 8 Joint Shaft 9 Comb Tooth Body 10 Outer Body 11 Cylindrical Part 12 Cylindrical Inner Hole 13 Valve Body Member 14 Repellent Body 15 Valve-seat member 16 Hole of valve-seat member 17 Application body 18 Core 19 Comb tooth part 20 Application body mounting part 21 Air passage 22 Radial groove 23 Valve body member 24 Valve seat member 25 Valve seat member hole 26 Small gap

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location B43L 19/00 G

Claims (2)

[Claims] 1. A valve seat-like member having a hole in an applicator configured to pressurize and discharge a liquid contained in a liquid containing chamber having a flexible wall portion that can be restored and deformed, A valve-like member that closes the hole of the valve seat member leaving a small gap through which liquid can pass when pressure is applied in the liquid discharge direction, and opens when pressure in the direction that allows air to enter the liquid storage chamber is applied; An applicator having a valve-like mechanism portion formed by a hole of a valve seat member serving as a liquid discharge path and an air entry path. 2. A valve seat member having a hole in an applicator adapted to pressurize and discharge a liquid contained in a liquid storage chamber having a flexible wall portion capable of being restored and deformed,
A valve mechanism section including a valve body member that closes the hole of the valve seat member when pressure in the direction of ejecting liquid is applied and opens when pressure in the direction of entering air into the liquid storage chamber is applied, and the valve mechanism. An applicator which has a small gap in parallel with the portion through which liquid can pass, and in which the hole of the valve seat member is only an air entry path.