JPH0614838Y2 - Applicator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an applicator for applying an application liquid such as ink, correction liquid, paint, paint, or nail varnish.

(Prior Art) As an applicator for applying the above-mentioned coating liquid, there is, for example, one disclosed in Japanese Utility Model Application Laid-Open No. 57-184781. This applicator includes a main application liquid chamber and a small chamber that communicate with each other through an opening, and the opening is opened and closed by an intermediate valve. A tip opening is provided in the small chamber, and the tip opening is opened and closed by a tip valve having an application body. The tip valve is biased toward the tip and is normally pressed toward the tip opening to close the opening. When the applicator of the tip valve is pressed against the surface to be coated, the tip valve moves inward, and the coating liquid in the small chamber flows out from the tip opening to the outside.

According to such an applicator, the opening is opened by the intermediate valve only when in use to introduce the coating liquid into the small chamber, and the tip opening is opened by further pressing the applicator to allow the application liquid to flow out. It can be performed.

By the way, in such an applicator, when opening and closing the opening, the entire container is shaken up and down to vertically move the stirring member therein, thereby moving the intermediate valve. There is also a structure with
In this case, it is difficult to reliably introduce an appropriate amount of coating liquid into the small chamber, and therefore, in general, there is a structure in which the container is pressed from the outside to slide the intermediate valve inside the container to open and close the opening. It is often used (see, for example, JP-B-55-32784).

However, in the case of this structure, first, the container is pressed to operate the intermediate valve, and after the coating liquid is introduced into the small chamber, the coating material may be pressed against the surface to be coated to perform coating. When application is performed while pressing the container, both the opening and the tip opening are opened, and a large amount of the coating liquid in the main chamber and the small chamber is ejected, so-called There may be inconvenience such as bot leakage.

(Object of the Invention) In view of the above circumstances, the present invention provides an applicator including an intermediate valve that opens an opening by external pressure and a tip valve that is axially movably housed in a small chamber. Also, it is an object of the present invention to provide an apparatus capable of preventing an excessive amount of the coating solution from flowing out from the tip end port even when the coating operations are simultaneously performed.

(Structure of the Invention) The present invention forms a main chamber for storing a coating liquid, and a small chamber communicating with the main chamber through a communication port and outside with a tip port inside the coating chamber to form the main chamber. When the tool body is pressed inward, this pressure deforms inwardly from the applicator body. An intermediate valve that is given a force to move axially from the position that closes the communication port to the position that opens the communication port, and the application to the tip A coating material, and the coating material is stored in the small chamber so as to be movable in the axial direction while facing the outside from the tip opening, and regulates the flow of the coating liquid from the tip opening along with the movement to the tip opening. Is provided with a leading end valve that moves toward the main chamber side, and a restricting portion that blocks the flow of the coating liquid by the contact is provided in the small chamber. With the and abutting, this tip valve and the intermediate valve The arrangement position of the restriction portion is set so that and are separated from each other in the axial direction.

In such a configuration, the intermediate valve is actuated by the external pressure to open the opening, and when the coating material is pressed against the surface to be coated in this state, the tip valve moves and the tip opening greatly opens. As a result of this movement, the tip valve comes into contact with the regulating portion and the flow of the coating solution is blocked, so the introduction of the coating solution from the main chamber into the small chamber is stopped, and the excess coating solution does not flow out from the tip opening. To be prevented.

In this applicator, spring means for urging the tip valve in the direction toward the main chamber may be provided in the small chamber. In this case, since the movement of the tip valve controls the outflow of the coating solution from the tip opening early after the coating solution is introduced, use a coating solution having a relatively low viscosity, that is, a coating solution having high fluidity. Also, it is possible to prevent the coating solution from being excessively replenished to the outside.

Further, in the applicator, spring means for restricting movement of the tip valve toward the main chamber is provided between the tip valve and the restriction portion,
The dimension of the spring means may be set so that the tip valve is located at a position where the tip valve opens in the state where the spring means and the tip valve are in contact with each other. In this case, unless the external force is applied to the coating material, the axial movement of the tip valve is limited, and the gap between the tip valve and the tip opening is also small. The time from the introduction into the small chamber to the regulation of the outflow of the coating solution through the tip opening becomes shorter, so that even a highly fluid coating solution can be sufficiently supplied to the outside.

Further, in the applicator, a spring means for pressing the tip valve toward the tip mouth side to a position where the tip valve comes into contact with the inner wall surface near the tip mouth is provided between the tip valve and the regulating portion, and the tip valve and the A gap may be left between the two by making the cross-sectional shapes of the two different at the position where the inner wall surface contacts. In this case as well, a small amount of the coating liquid constantly exudes through the tip opening from the gap formed between the tip valve and the inner wall surface, so that the time loss until the coating is reduced.

(Embodiment) A first embodiment of the present invention will be described with reference to FIGS. The applicator shown here comprises a main chamber 1 for containing the coating liquid, and a small chamber 2 communicating with this main chamber 1.
The coating liquid used in this coating tool is preferably an ink, a correction liquid, a paint, a paint, a nail varnish or the like, which has a slight viscosity.

The main chamber 1 is formed by a main body 3, a valve cylinder 4, and a valve seat 5. The main body 3 is made of a flexible material such as plastic, and has a pair of concave portions 3a protruding inward on its side surface, and the concave portions 3a receive a pressure from the outside. It is adapted to be deformed inward as shown by the chain double-dashed line. The valve cylinder 4 is
The main body 3 and the valve seat 5 are interposed, and a rear end thereof has a protruding portion 4a protruding inward. Valve seat 5
Is provided on the front surface of the valve cylinder 4 and has a communication port 5a between the main chamber 1 and the small chamber 2.

The small chamber 2 is formed by the valve seat 5 and a front cylinder 6 attached to the front end of the main body 3 so as to cover the valve seat 5. The tip cylinder 6 has a tip opening 6a that communicates the small chamber 2 with the outside. When not in use, a cap (not shown) covering the tip opening 6a is fitted on the outer surface to dry the coating material 14 described later. Is being prevented. An intermediate valve 7 is provided across both chambers 1 and 2 so as to close the communication port 5a that communicates the small chamber 2 and the main chamber 1.

The intermediate valve 7 is composed of a large diameter portion 8 located in the main chamber 1 and a small diameter portion 9 located in the small chamber 2.
As shown in FIG. 2, a seal portion 10 is formed at a boundary portion between the small diameter portion 9 and the small diameter portion 9 so as to be able to contact with a peripheral portion of the communication port 5a in the valve seat 5. A ridge 8a that projects outward is formed on the peripheral surface of the large-diameter portion 8 inside the valve cylinder 4, and the ridge 8a is formed.
A spring 11 is provided between the above and the protrusion 4a.
The intermediate valve 7 is biased toward the tip end by the spring 11, so that the seal portion 10 contacts the valve seat 5 and closes the communication port 5a.

Further, a lead-in portion 12 having a shape gradually expanding toward the rear end is provided in a portion of the large diameter portion 8 corresponding to the concave portion 3a. The pull-in portion 12 has a recessed portion 3 which is deformed inward as described above by external pressure.
By being sandwiched by a from the outside, the entire intermediate valve 7 moves in the direction of the arrow in FIG.
0 moves to the position of the chain double-dashed line in FIG. 2 and separates from the valve seat 5 to open the communication port 5a.

A tip valve 13 as shown in FIGS. 2 and 3 is housed in the small chamber 2, and a coating material 14 is fixed to the tip portion of the tip valve 13. This coating material 14
May be, for example, a brush, a porous body, a felt, a mere solid rod-shaped body, or such a rod-shaped body provided with a groove on the outside or inside thereof, which is used in a general applicator, It is selected as appropriate. A brush is used in this embodiment.

The coating material 14 is exposed to the outside through the tip opening 6a, and the tip valve 13 is movable in its axial direction. The front end of the tip valve 13 is formed with a seal portion 13a capable of abutting against the inner wall surface of the front cylinder 6, and by this abutment, the tip opening 6a is closed and the inside of the small chamber 2 is sealed. ing. A ridge 13b is formed on the peripheral surface of the tip valve 13, and a gap having a predetermined area is formed by the ridge 13b and the inner wall surface of the front cylinder 6.
However, the protrusion 13b does not necessarily have to be formed in this embodiment.

Further, a step portion 6b having a larger diameter than the tip end side is formed on the tail end side of the portion of the front cylinder 6 that faces the small chamber 2, and is formed by the step portion 6b and the valve seat 5. In the space of the small chamber 2, a regulating member 15 which is a feature of the present invention is fixed by means such as press fitting or adhesion. As shown by the chain double-dashed line in FIG. 3, this regulating member 15 has a seal portion 15a that can come into contact with the rear portion of the tip valve 13 that moves toward the main chamber 1 side, and by this abutment, the small chamber 2 It has a shape that blocks the flow of the coating liquid inside.

Next, the operation of this applicator will be described. First, when the recess 3a is not pressed and not in use, the intermediate valve 7 is biased in the distal direction by the spring 11, so the communication port 5a is closed by the seal portion 10 of the intermediate valve 7. Therefore, the coating liquid in the main chamber 1 is not introduced into the small chamber 2 and the small chamber 2
The coating liquid is not filled inside. At this time, the tip valve 13 does not receive a large pressure and is movable in the small chamber 2, and whether the seal portion 13a and the inner wall surface of the front cylinder 6 are in light contact with each other, or
Alternatively, since a gap is formed therebetween, a small amount of the coating liquid in the small chamber 2 oozes out through the gap between the seal portion 13a and the tip cylinder 6 through the tip end port 6a.

When the concave portion 3a of the main body 3 is pressed from this state, the concave portion 3a
Deforms inward and abuts the retracting portion 12, whereby the intermediate valve 7 slides in the direction of the arrow in FIG. 1 against the biasing force. At this time, since the valve seat 5 and the seal portion 10 are separated from each other to open the communication port 5a and the deformation of the recess 3a pressurizes the coating liquid in the main chamber 1, the coating liquid is introduced into the small chamber 2. To be done.

By this introduction, the coating liquid fills the small chamber 2 to increase the pressure, and the pressure causes the tip valve 13 in the small chamber 2 to be pressed in the tip direction to move to the position indicated by the chain double-dashed line in FIG. The portion 13a and the inner wall surface of the tip cylinder 6 come into contact with each other to close the tip end opening 6a. In this way, until the tip opening 6a is closed, the coating liquid whose pressure has increased due to the above-mentioned introduction flows out from the tip opening 6a to the outside, whereby the introduction of the coating liquid into the small chamber 2 can be confirmed. At this time, since the coating material 14 already contains some coating liquid, the coating can be started in a short time. Further, at the time of coating, the coating material 14 is pressed against the surface to be coated, the tip valve 13 is pushed back inward, and the tip port 6a is opened, so that the coating liquid in the small chamber 2 is always coated. The material 14 is replenished. When the coating liquid in the small chamber 2 is used up, the concave portion 3a may be pressed again.

On the other hand, in such an applicator, when the coating material 14 is pressed against the surface to be coated at the same time as pressing the concave portion 3a, the intermediate valve 8 is actuated to open the communication port 5a,
Moreover, by moving the tip valve 13 to the main chamber 1 side, the tip port 6
a is also in a wide open state. However, this tip valve 1
3, the rear portion of the tip valve 13 and the seal portion 15a of the regulating member 15 come into contact with each other as shown in FIG. No introduction of the coating liquid into 2 is carried out, and therefore,
Excessive spraying of the coating liquid from the tip opening 6a is prevented.

As described above, with this applicator, the normal application operation, that is, the operation of applying after introducing the application liquid into the small chamber 2 by pressing the concave portion 3a, the application liquid can be applied smoothly, Moreover, even when the coating operation is performed while the concave portion 3a is being pressed, the flow of the coating liquid is blocked by the contact between the tip valve 13 and the regulating member 15, so that the excess coating liquid from the tip port 6a is blocked. Can be prevented.

Although the independently formed restriction member 15 is fixed in the small chamber 2 here, the present invention is not limited to this, and the restriction member may be integrally formed on the inner wall surface of the front cylinder 6. You may

Next, a second embodiment will be described with reference to FIG. In the applicator having the above-described configuration, when the viscosity of the coating liquid used is high, that is, when the fluidity of the coating liquid is low, the tip valve 13 is not supplied while the coating liquid in the small chamber 2 does not sufficiently flow out from the tip port 6a. May be pressed to close the front end opening 6a. Therefore, in the applicator of this embodiment, a spring 16 is provided between the inner wall surface of the tip cylinder 6 and the projection 13b of the tip valve 13 in the applicator, and the spring 16 causes the tip valve 13 to move.
Is urged toward the main chamber 1 side so that a gap is formed between the seal portion 13a and the front cylinder 6a.

According to such a structure, compared to the applicator of the first embodiment,
If higher pressure is not applied, the tip valve 13 is not pressed in the tip direction, so that the amount of the coating solution that oozes out by the time the tip opening 6a is blocked increases, which results in a coating solution having a high viscosity. It can also be used against.
Moreover, as in the case of the applicator of the first embodiment, even if the coating operation is performed while the concave portion 3a is pressed, the coating liquid does not excessively flow out from the tip end port 6a.

Next, a third embodiment will be described with reference to FIG. In the applicator of the first embodiment, a coating liquid having a relatively low viscosity,
That is, when a coating liquid having high fluidity is used, the coating liquid easily flows out and the coating liquid may be excessively replenished to the outside.
It is preferable that the tip end opening 6a is sealed by 3.

Therefore, in the applicator of this embodiment, the regulating member 15 and the tip valve 1
A spring 17 is provided between the movable member 15 and the protrusion 13b of the moving member 15.
It is fixed in the fixing groove 15b formed in. That is, in this structure, the tip valve 13 is supported by the spring 17, and only the movement toward the intermediate valve 7 side is restricted.

According to such a structure, unless the external force is applied to the coating material 14, the axial movement amount of the tip valve 13 is limited, and the gap that is always formed between the seal portion 13a and the tip cylinder 6 is also formed. Since the size is small, the time from the introduction of the coating liquid into the small chamber 2 to the sealing of the tip end port 6a is shorter than that in the structure of the first embodiment. Therefore, it can be used smoothly even for a coating liquid having high fluidity.

Next, a fourth embodiment will be described with reference to FIGS. 6 and 7. In this embodiment, a spring 18 is provided between the ridge 13b and the regulating member 15 to urge the tip valve 13 in the tip direction, and the sectional shape of the seal portion 13a of the tip valve 13 is shown in FIG. It is set to an elliptical shape like. Therefore, as shown in the same drawing, the abutment between the seal portion 13a and the tip cylinder 6 leaves a gap 19 of a predetermined area, and the tip opening 6a is left.
Is being blocked.

Even in the case of such an applicator, the tip opening 6a from the gap 19
Since a small amount of the coating liquid constantly bleeds through the same, it is possible to obtain effects such as reduction of time loss until coating, as in the coating tool of the first embodiment and the like.

In this embodiment, the area of the gap 19 and the biasing force of the spring 18 may be set according to the viscosity of the coating liquid used. That is, when the viscosity of the coating liquid is low, the fluidity is large and a large amount of the coating liquid easily flows out from the gap 19, so that the shape of the seal portion 13a is set so that the area of the gap 19 is small. By suppressing the flow rate of the coating liquid from the gap 19 and further setting the biasing force of the spring 18 strongly, the amount by which the tip valve 13 is pushed during coating is reduced, and the large amount of coating liquid is applied. You should try to prevent the outflow. When the viscosity of the coating liquid is high, the setting is reversed.

Further, the means for forming such a gap is not limited to the above-mentioned one, and as shown in FIG. 8, for example, the seal portion 13a of the tip valve 13 is formed into a polygon such as a hexagon so that the gap 20 is formed. Alternatively, as shown in FIG. 9, a plurality of ribs 13c may be provided on the seal portion 13a, and the same gaps as described above may be formed between these ribs 13c. In addition, the same effect can be obtained as long as the structure has a predetermined gap such as forming a slit in the seal portion 13a or making the surface of the seal portion 13a satin.

(Effects of the Invention) As described above, the present invention includes the intermediate valve that opens the communication port by pressing from the outside, and the tip valve that has the coating material at the tip and is movably housed in the axial direction in the small chamber. In the provided applicator, a regulation part is provided in the small chamber, and the regulation part and the tip valve moving toward the main chamber are brought into contact with each other to interrupt the flow of the coating liquid. Even when the intermediate valve is actuated by pressing and the coating material is pressed against the surface to be coated to move the tip valve to the main chamber side, this movement causes the tip valve and the regulating part to contact, and the coating liquid Since the flow of the coating liquid is blocked, an excessive amount of the coating liquid does not flow out from the tip opening, and there is an effect that it is possible to prevent inconveniences such as a leak of a button.

Further, in the applicator provided with the spring means for urging the tip valve in the small chamber in the direction toward the main chamber, the application liquid is introduced from the tip opening by moving the tip valve early after the introduction of the application liquid. Therefore, there is an effect that it is possible to prevent the coating liquid from being excessively replenished to the outside by using a coating liquid having a relatively low viscosity, that is, a coating liquid having high fluidity.

Further, a spring means for restricting the movement of the tip valve toward the main chamber is provided between the tip valve and the regulating portion, and the tip valve opens the tip opening in a state where the spring means and the tip valve are in contact with each other. In the applicator in which the dimension of the spring means is set so as to be located in the open position, the axial movement amount of the tip valve is limited unless the external force is applied to the coating material, and the distance between the tip valve and the tip port is limited. Since the gap between the two is small, the time from when the coating liquid is introduced into the small chamber until the flow of the coating liquid through the tip opening is regulated is shortened. However, there is an effect that it can be supplied to the outside sufficiently to ensure smooth use.

Further, a spring means for pressing the tip valve toward the tip opening side to a position where the tip valve comes into contact with the inner wall surface near the tip opening is provided between the tip valve and the regulating portion, and the tip valve and the inner wall surface contact each other. With an applicator that leaves a gap between the two by making the cross-sectional shapes of the two different at the contact position, a small amount of coating liquid will constantly exude from the gap formed between the tip valve and the inner wall surface through the tip opening. Therefore, there is an effect that the time loss until coating can be reduced accordingly.

[Brief description of drawings]

FIG. 1 is a cutaway side view of an applicator in a first embodiment of the present invention, FIGS. 2 and 3 are cutaway side views showing essential parts of the applicator, and FIG. 4 is an applicator in a second embodiment. FIG. 5 is a broken side view showing an essential part of the applicator in the third embodiment, and FIG. 6 is a broken side view showing an essential part of the applicator in the fourth embodiment. FIG. 7 is a sectional view taken along line VII-VII of FIG. 6, FIG. 8 is a sectional view of an applicator in another embodiment corresponding to FIG. 7, and FIG. 9 is a main part of the applicator in another embodiment. It is a side view. 1 ... Main room, 2 ... Small room, 3 ... Main body (applicator main body), 5a ...
Communication port, 6a ... Tip port, 7 ... Intermediate valve, 13 ... Tip valve, 1
4 ... Coating material, 15 ... Regulating member, 15a ... Seal part, 1
6, 17, 18 ... Spring (spring means).

Claims (4)

[Scope of utility model registration request] 1. A main chamber for containing a coating liquid, and a small chamber communicating with the main chamber through a communication port and communicating with the outside through a tip port are formed inside, and the applicator body forming the main chamber is inside. It has an intermediate valve that is given a force to move in the axial direction from the position that closes the communication port to the position that opens the communication port when it is pressed by A tip valve that is accommodated in the small chamber so as to be movable in the axial direction with the coating material facing the outside from the tip opening, and that regulates the flow of the coating liquid from the tip opening along with the movement to the tip opening. And a regulating portion that abuts against the tip valve that moves toward the main chamber and shuts off the flow of the coating liquid by the abutment, and the regulating portion and the tip valve abut. The tip valve and the intermediate valve are axially Applicator being characterized in that setting the arrangement position of the regulating portion so that between. 2. The applicator according to claim 1, wherein spring means for urging the tip valve toward the main chamber is provided in the small chamber. 3. The applicator according to claim 1, wherein spring means for restricting movement of the tip valve toward the main chamber is provided between the tip valve and the regulating portion, and the spring means and the tip valve are provided. The applicator is characterized in that the size of the spring means is set so that the tip valve is located at a position where the tip opening is opened in a state where the tip valve is in contact with. 4. The applicator according to claim 1, wherein a spring means for pressing the tip valve toward the tip opening side is provided between the tip valve and the regulating portion to a position where the tip valve comes into contact with an inner wall surface near the tip opening. At the same time, the applicator is characterized in that a gap is left between the tip valve and the inner wall surface by making the cross-sectional shapes of the tip valve and the inner wall surface different from each other.