JP6697840B2 - Liquid applicator - Google Patents

Description

  The present invention relates to a liquid applicator configured to supply an application liquid such as a cosmetic or a cleaning liquid from a liquid bottle to an application unit formed by, for example, a brush.

  Conventionally, a liquid application that has a brush-shaped application unit such as a fiber bundle at the tip and stores the application liquid such as liquid cosmetics or cleaning liquid, and supplies the application liquid by permeating the application liquid into the application unit. The ingredients are provided. Various improvements and contrivances have been made in the past regarding this type of liquid applicator.

  In this type of liquid applicator, the function of a brush, for example, a fiber bundle, which constitutes the applicator, is deteriorated as it is worn with each use. For this reason, there is provided a liquid applicator which is devised so that the brush can be easily replaced, and this is disclosed in Patent Document 1.

Further, there is a liquid applicator configured such that the liquid bottle containing the application liquid is knocked in the axial direction to supply the application liquid from the liquid bottle to a brush-shaped application portion via a valve set. Is disclosed in.
Further, by improving the valve set disposed between the liquid bottle disclosed in Patent Document 2 and the brush-shaped application section, and providing the valve seat forming the valve set with a double seal section, Patent Document 3 discloses a liquid applicator designed to prevent liquid leakage at the valve set portion.

Japanese Patent No. 4236278 Japanese Utility Model Publication No. 1-122886 JP, 2010-131097, A

  By the way, in the conventional liquid applicator disclosed in each of the above-mentioned patent documents, a cap that can cover the brush-shaped application part is detachably attached to the front end of the barrel, and the liquid applicator is not used. In the state (storage state), the brush-shaped application portion is configured to be protected in a sealed state by the cap.

Therefore, after using the liquid applicator, even if the brush-shaped application part is washed with water and stored, for example, the application part is sealed by the cap, so that the application part is dried. Will take a considerable amount of time.
In this case, a valve set is generally arranged between the liquid bottle and the coating section, and although the coating solution does not leak to the coating section, the cap is sealed to dry the coating section after washing with water. Since it does not exist, a part of the coating liquid remaining in the coating portion will rot, or mold will be generated in the coating portion, leading to unsanitary problems.

  The present invention has been made by paying attention to the above-mentioned problems in the conventional liquid applicator, and avoids the sealing by the cap that protects the application part when the liquid applicator is not used (during storage). And a configuration for actively drying the application part, thereby providing a liquid applicator capable of preventing the occurrence of unsanitary problems such as the above-described decay and mold generation occurring in the application part. This is an issue.

Engaging Ru liquids applicator device in claim 1 which has been made in order to solve the above, is supported by a front barrel which is arranged at the front end portion of the barrel is formed into a brush-like bundle of numerous fibers A liquid applicator provided with an application part and a liquid bottle filled with an application liquid inside the barrel, which is detachably attached to the front end of the tip shaft or the barrel so as to cover the application part. the attached caps, openings for communicating the inside and outside of the cap is formed at the center portion of the top surface of the axial front end portion of the cap Rutotomoni, it is formed with a ventilation hole in the front barrel, in front barrel coating portion is communicated with the cap by the vent, and in a state of attaching the cap to the front end of the front barrel or barrel, with the coating portion through the opening of the cap is configured to be direct Around the opening formed on the top surface of the cap, a discontinuous convex portion is formed integrally with the cap along the opening and is arranged so as to surround the round hole-shaped opening. It is characterized by
Further, engagement Ru liquids applicator to claim 2 which has been made in order to solve the above, is supported by a front barrel which is arranged at the front end portion of the barrel is formed in a brush-like bundle of numerous fibers And a liquid bottle filled with a coating liquid inside the barrel, the liquid applicator being attached to or detached from the front end of the tip shaft or the barrel so as to cover the coater. The cap that can be attached is formed with an opening that communicates the inside and outside of the cap in the center of the top surface of the axial front end of the cap, and a vent hole is formed in the front shaft, The inner coating portion is communicated with the cap through the ventilation hole, and the coating portion is configured to be directly visible through the opening of the cap in a state where the cap is attached to the front end portion of the tip shaft or the barrel. In addition, the groove portion which is continuous with the opening formed on the top surface of the cap and extends in the circumferential direction from the opening is radially formed on the top surface .

A liquid applicator according to claim 3 made in order to solve the above-mentioned problem, and an application part supported by a front shaft arranged at a front end portion of a barrel and mounted in the barrel so as to be movable in the axial direction. The liquid bottle having the coating liquid filled therein is disposed between the liquid bottle and the coating unit, and the valve is opened by the axial movement of the liquid bottle to fill the liquid bottle. A liquid applicator provided with a valve set for supplying the application liquid to the application part, wherein the cap is detachably attached to the front end of the tip shaft or the barrel so as to cover the application part. An opening for communicating the inside and the outside of the cap is formed in the center of the top surface of the axial front end of the cap, and a vent hole is formed in the tip shaft that supports the coating portion, so that the coating inside the tip shaft is performed. The portion is communicated in the cap by the vent hole, and in a state where the cap is attached to the front end portion of the tip shaft or the barrel, the application portion is configured to be directly visible through the opening of the cap, Around the opening formed on the top surface of the cap, a discontinuous convex portion is formed integrally with the cap along the opening so as to surround the round hole-shaped opening. Is characterized by.

A liquid applicator according to claim 4 made in order to solve the above-mentioned problem, and an application part supported by a front shaft arranged at a front end portion of a barrel and axially movable in the barrel. A liquid bottle that is mounted and filled with the coating liquid inside, and is disposed between the liquid bottle and the coating unit, and opens by opening the liquid bottle in the axial direction to fill the liquid bottle. A liquid applicator provided with a valve set for supplying the applied liquid to the applying part, the cap being detachably attached to the front end of the tip shaft or the barrel so as to cover the applying part. Has an opening for communicating the inside and outside of the cap formed in the center of the top surface of the axial front end of the cap, and a vent hole is formed in the tip shaft supporting the coating portion, The application part is connected to the inside of the cap by the ventilation hole, and in a state where the cap is attached to the front end of the tip shaft or the barrel, the application part is configured to be directly visible through the opening of the cap. The groove portion, which is continuous with the opening formed on the top surface of the cap and extends in the circumferential direction from the opening, is radially formed on the top surface.

In addition, the vent hole formed in the axial direction of the tip shaft communicates with the space formed between the inner peripheral surface of the tip shaft and the coating part, and is formed in the tip shaft. A plurality of ventilation holes are formed around the coating part with the coating part as the center, and all of the plurality of ventilation holes are formed between the inner peripheral surface of the tip shaft and the coating part. A form communicating with the space portion can be preferably adopted.

According to the liquid applicator having the above-described configuration, the cap that covers the application part has the opening that communicates the inside and outside of the cap. As a result, after use of the liquid applicator, the water remaining in the application part that has been washed with water and drained can be effectively evaporated through the opening formed in the cap, and as a result, the application part can be immediately processed. Can be dried.
Therefore, it is possible to effectively prevent a part of the coating liquid remaining in the coating portion from being putrefactive and causing unsanitary problems such as generation of mold in the coating portion.

  In addition, a vent hole is formed in the axial direction in the tip shaft supporting the application part, and the vent hole communicates with the space part formed between the inner peripheral surface of the tip shaft and the application part. By doing so, it is possible to contribute to further promoting the evaporation and drying of the water remaining in the application portion after washing with water.

It is the perspective view which showed the external appearance structure of the liquid applicator which concerns on this invention. FIG. 2 is a cross-sectional view of the liquid applicator shown in FIG. 1 in a state where the liquid applicator is fractured at the center. It is sectional drawing of the state which advanced the liquid bottle in the barrel. It is an expanded sectional view of a cap. It is the front view which expanded and showed the front axle. It is sectional drawing seen from the AA line in FIG. 5 in the arrow direction. It is the top view, front view, and left side view which showed the 2nd form of a cap. It is the top view, front view, and left side view showing the 3rd form of a cap. It is the top view, front view, and left side view showing the 4th form of a cap.

A liquid applicator according to the present invention will be described based on an embodiment shown in the drawings.
As shown in the external configuration of FIG. 1, the entire liquid applicator 1 is formed into a cylindrical body having an outer diameter along the longitudinal direction of substantially the same size, and functions as a grip portion of the liquid applicator 1. The rear end of the barrel 2 is open, and the liquid bottle 3 is mounted in the barrel 2 from the rear portion.

A front shaft 4 that supports a brush that forms a coating unit, which will be described later, is attached to the front end of the barrel 2. A cap 5 that protects the brush is detachably attached to the base end of the front shaft 4. It is installed.
An opening 5b for communicating the inside and outside of the cap 5 is formed at the center of the top surface 5a at the tip of the cap 5.

2 and 3 show the overall configuration of the liquid applicator 1 in a cross-sectional view. A small diameter portion 2a having a reduced outer diameter is formed at the front end portion of the above-mentioned barrel 2, and the outer circumference of this small diameter portion 2a. The surface is provided with a male screw 2b.
The rear end of the barrel 2 is opened as described above, and the liquid bottle 3 is mounted from the rear end. Then, as shown in FIG. 3, a cutting portion 2c having a partially shortened axial length is provided so that the rear end portion (bottom portion) of the liquid bottle 3 can be knocked to move forward in the barrel 2. It is formed at the rear end of the barrel 2.

The front shaft 4 is attached to the front end of the barrel 2 by using the male screw 2b formed on the front end of the barrel 2.
As shown by itself in FIGS. 5 and 6, the front shaft 4 has a frustoconical outer shape, and the inner diameter is gradually reduced from the base end portion to the tip end portion. A shaft hole 4a is formed. A female screw 4b is formed on the inner peripheral surface of the large-diameter shaft hole 4a formed on the base end side of the front shaft 4 and is screwed into the male screw 2b formed on the front end of the shaft cylinder 2. ing.

  That is, when the front shaft 4 is screwed to the male screw 2b on the shaft cylinder 2 side by using the female screw 4b of the front shaft 4, the liquid introducing pipe 6 described below, the brush 8 constituting the application portion, and the like are connected to the shaft cylinder. It is configured to be attached to the front ends of the two simultaneously.

Further, as shown in FIG. 6, an annular step portion 4c formed by reducing the inner diameter is provided at the front end portion of the large-diameter shaft hole 4a formed with the female screw 4b. The portion 4c has a function of positioning and mounting the liquid introduction pipe 6 and the brush holder 9 described later on the front end portion of the barrel 2.
Further, as shown in FIG. 5, a large diameter male screw 4d is formed on the outer peripheral surface of the front shaft 4 near the base end portion. The large-diameter male screw 4d comes into contact with the female screw 5c formed in the opening portion of the cap 5 shown in FIG. 4, so that the cap 5 can be attached to and detached from the front shaft 4 as shown in FIGS. 2 and 3. Can be attached.

A liquid introducing pipe 6 is mounted in the front end opening of the shaft cylinder 2 having a small diameter, and a collar portion 6a formed at the front end portion of the liquid introducing pipe 6 is provided at the front end opening of the shaft cylinder 2. The liquid introduction pipe 6 is positioned with respect to the shaft cylinder 2 by abutting in the axial direction.
Further, a liquid guide pipe 7 protruding forward is attached to the inner peripheral surface of the liquid introducing pipe 6, and the liquid guide pipe 7 is applied to a brush 8 made of a fiber bundle which constitutes an applying portion, with respect to the applying liquid. Fulfills the function of supplying.

The brush 8 constituting the application section is made of PBT or nylon having an outer diameter of about 0.07 mm, and is preferably configured by bundling a large number of fibers having a tapered tapered end.
The rear end of the brush 8 is heat-sealed to form a brim, and the brim at the rear end of the brush 8 is hooked by a ring-shaped brush holder 9. The collar portion 9a formed integrally with the ring-shaped brush holder 9 comes into contact with the annular step portion 4c formed on the tip shaft 4, whereby the application portion (brush) 8 is moved to the front end of the barrel 2. Supported by the department. Further, a substantially central portion in the longitudinal direction of the application portion 8 formed by the brush is supported by a small-diameter brush support hole 4e formed at the tip portion of the tip shaft 4 shown in FIG.

Further, an inner peripheral surface 4f having a slightly larger inner diameter than the brush supporting hole 4e is formed near the base end of the brush supporting hole 4e shown in FIG.
The inner peripheral surface 4f forms a gap between the front shaft 4 and the coating portion (brush) 8, and a space portion formed by this gap is shown by reference numeral 11 in FIGS. 2 and 3.

  Further, the front shaft 4 is provided with four ventilation holes 4g in the axial direction so that the application portion (brush) 8 is at the center and the peripheries thereof are equally spaced around the application portion (brush) 8. 4g communicates with the space portion 11 formed between the tip shaft 4 and the coating portion (brush) 8 at its bottom portion.

On the other hand, the above-mentioned liquid bottle 3 has a bottle stopper 21 attached to the opening thereof, and has an annular shape having a spring receiver 22 and a flange portion between the bottle stopper 21 and the opening edge of the liquid bottle 3. The flange portions of the formed valve seats 23 are attached so as to overlap each other.
The spring receiver 22 is formed in a cylindrical shape in the front half portion in the axial direction, and has a slit 22a formed in the rear half portion in the axial direction along the axial direction. An annular spring receiving portion 22b is attached to the rear end portion.

  A valve rod 24 is accommodated in the spring bearing 22 so as to be slidable in the axial direction. The valve rod 24 slides along the cylindrical inner surface of the spring bearing 22 on the front end side of the valve rod 24 so that the coating liquid An annular seal piece 24a for pushing out is formed integrally with the valve rod 24. A coil-shaped valve spring 25 is arranged immediately after the seal piece 24a formed on the valve rod 24 and between the spring receiving portion 22b, and the valve spring 25 directs the valve rod 24 forward. Giving a pushing force to push out.

On the other hand, the valve seat 23 attached to the opening of the liquid bottle 3 comes into contact with the valve rod 24 urged by the valve spring 25 at the rear end thereof to maintain airtightness and prevent liquid leakage. Further, the valve seat 23 receives the valve rod 24, performs a function of a stopper that prevents the valve spring 24 from advancing the valve rod 24, and has an annular packing 26 disposed between the valve seat 23 and the bottle stopper 21 as an axis. It also has a function of receiving in a certain direction and supporting the packing 26 in a fixed position.
The annular packing 26 comes into contact with the outer peripheral surface of the liquid introducing pipe 6 and acts so as to prevent the coating liquid from leaking from the liquid bottle 3.

The liquid bottle 3 described above is configured to be attachable to and detachable from the barrel 2.
That is, the valve rod 24 is advanced by the valve spring 25 when the liquid bottle 3 is detached from the barrel 2 and mounted on the barrel 2 as shown in FIG. Therefore, the rear end portion of the valve seat 23 and the valve rod 24 urged by the valve spring 25 come into contact with each other to maintain airtightness, so that leakage of the coating liquid filled in the liquid bottle 3 is prevented.

On the other hand, when the rear end portion (bottom portion) of the liquid bottle 3 is knocked in the state shown in FIG. 2 and the liquid bottle 3 is moved forward in the barrel 2, the valve rod 24 is moved as shown in FIG. The valve rod 24 is relatively retracted in the liquid bottle 3 by being pushed by the liquid introducing pipe 6.
As a result, the seal piece 24a of the valve rod 24 retracts to the position of the slit 22a of the spring receiver 22. Therefore, the coating liquid filled in the liquid bottle 3 enters the rear end opening of the liquid introducing pipe 6 through the slit 22 a of the spring receiver 22.

Then, when the pressing force of the knocking operation of the liquid bottle 3 is released, the valve rod 24 advances relatively and the sealing piece 24a passes the slit 22a and reaches the inner peripheral surface of the spring receiver 22 to push the liquid. First, the liquid is supplied to the brush 8 serving as an application portion via the liquid guide pipe 7. Due to the expanding action of the valve spring 25, the liquid bottle 3 retracts in the barrel 2, contacts the rear end of the valve seat 23 and the valve rod 24 urged by the valve spring 25, and stops. Return to the state shown in.
That is, in this embodiment, the spring receiver 22, the valve rod 24, and the valve spring 25 described above open the valve by moving the liquid bottle in the axial direction, and supply the coating liquid to the brush 8 serving as the coating unit. The valve set 27 is configured.
Therefore, each time the liquid bottle 3 mounted on the barrel 2 is knocked, the valve set 27 opens, and the coating liquid filled in the liquid bottle 3 is supplied to the coating unit 8 by a brush. Acts like.

  According to the liquid applicator 1 described above, the cap 5 that covers the brush 8 as the applicator is formed with the opening 5b that communicates the inside and outside of the cap. Therefore, after using the liquid applicator 1, the applicator Water remaining after washing 8 with water can be effectively evaporated to the outside through the opening 5b formed in the cap 5.

  In addition, a vent hole 4g is formed in the front shaft 4 that supports the coating portion 8 in the axial direction, and the ventilation hole 4g is formed between the inner peripheral surface 4f of the front shaft 4 and the coating portion 8. By adopting a configuration in which the liquid applicator 1 is used for communication, it is possible to contribute to further promotion of evaporation and drying of water remaining in the application portion 8 after washing with water after use.

According to the configuration of the liquid applicator 1 described above, when the liquid applicator 1 is stored with the cap 5 facing downward, the opening 5b formed in the top surface 5a of the cap 5 is formed by the flat portion of the storage location. There is a possibility that it will be blocked, and in this case evaporation and drying of the water remaining in the coating part 8 may be hindered.
Therefore, the configurations of the second to fourth caps shown in FIGS. 7 to 9 can solve such a problem, and the configuration of each cap 5 will be described below.
The internal structure of the cap 5 shown in FIGS. 7 to 9 is the same as that of the first example shown in the sectional view of FIG.

In the cap 5 shown in FIGS. 7 and 8, an opening 5b that communicates the inside and the outside of the cap is formed in the central portion of the top surface 5a, and is discontinuous around the opening 5b along the opening 5b. The convex portion 5d is formed integrally with the cap 5.
That is, in the example shown in FIG. 7, three small protrusion-shaped protrusions 5d formed in a hemispherical shape so as to surround the round hole-shaped opening 5b are arranged at equal intervals.
Therefore, according to the structure of the cap 5 shown in FIG. 7, even if the liquid applicator 1 is stored with the top surface 5a of the cap 5 facing downward, the opening 5b is closed due to the presence of the convex portion 5d integral with the cap 5. Can be prevented.

Further, in the example shown in FIG. 8, a pair of arc-shaped convex portions 5d are formed so as to surround the circular hole-shaped opening 5b so as to face each other.
Therefore, according to the example shown in FIG. 8, a pair of concave portions 5e are formed at positions relatively opposed to each other by 180 degrees at the break of the arc-shaped convex portion 5d. Therefore, the pair of recesses 5e has a function of preventing the opening 5b from being closed even when the top surface 5a of the cap 5 is placed downward.

The top surface 5a of the cap 5 shown in FIG. 9 is formed in a brim shape, and an opening 5b for communicating the inside and outside of the cap 5 is formed in the central portion of the top surface 5a formed in the brim shape.
Further, a configuration is adopted in which a groove portion 5f that is continuous with the opening 5b formed on the top surface 5a of the cap and extends in the circumferential direction from the opening 5b is formed on the top surface 5a.
That is, in the example shown in FIG. 9, three groove portions 5f, which extend from the opening 5b in the circumferential direction and are continuous with the round hole-shaped opening 5b formed in the central portion of the top surface 5a, are radially formed on the top surface 5a. Is formed in. Therefore, the groove portion 5f has a function of preventing the opening 5b from being closed even when the top surface 5a of the cap 5 is faced down.

In the above-described embodiment, the opening 5b for communicating the inside and the outside of the cap 5 is formed on the top surface 5a of the cap 5, but it is formed on any part of the cap 5. Alternatively, a plurality of openings 5b may be provided.
Further, in the above-mentioned embodiment, the cap 5 for protecting the brush 8 as the application portion is detachably attached to the base end portion of the tip shaft 4, but this is attached to the front end portion of the barrel 2. It may be configured to be attached.

  Further, in the above-described embodiment, a brush in which a large number of fibers are bundled is used as the application section 8. However, a similar effect can be obtained by using felt, sponge, natural rubber, or elastomer instead of this brush. The effect can be obtained.

DESCRIPTION OF SYMBOLS 1 Liquid applicator 2 Shaft cylinder 3 Liquid bottle 4 Tip shaft 4a Shaft hole 4e Brush support hole 4f Inner peripheral surface 4g Vent hole 5 Cap 5a Top surface 5b Opening 5d Convex portion 5e Recessed portion 5f Groove portion 6 Liquid introducing pipe 8 Coating portion (brush) )
9 Brush holder 11 Space 21 Bottle stopper 22 Spring receiver (valve set)
22a slit 22b spring receiving portion 23 valve seat 24 valve rod (valve set)
24a Seal piece 25 Valve spring (valve set)
26 packing 27 valve set

Claims (4)

A liquid, which is supported by a front shaft arranged at the front end of the barrel, has a coating part formed by bundling a large number of fibers in a brush shape, and a liquid bottle filled with a coating liquid inside the barrel. An applicator,
The cap, which is detachably attached to the front end portion of the front shaft or the barrel so as to cover the coating portion, has an opening for communicating the inside and the outside of the cap with the central portion of the top surface of the axial front end portion of the cap. formed Rutotomoni, vents to said front barrel is formed in the coating portion in the front barrel is communicated with the cap by the vent,
Further, in a state in which the cap is attached to the front end portion of the tip shaft or the barrel, the application portion is configured to be directly visible through the opening of the cap, and the opening of the opening formed on the top surface of the cap is A liquid applicator characterized in that a convex portion, which is discontinuous along the opening, is integrally formed with the cap, and is disposed so as to surround the round hole-shaped opening . A liquid, which is supported by a front shaft arranged at the front end of the barrel, has a coating part formed by bundling a large number of fibers in a brush shape, and a liquid bottle filled with a coating liquid inside the barrel. An applicator,
The cap, which is detachably attached to the front end portion of the front shaft or the barrel so as to cover the coating portion, has an opening for communicating the inside and the outside of the cap with the central portion of the top surface of the axial front end portion of the cap. formed Rutotomoni, vents to said front barrel is formed in the coating portion in the front barrel is communicated with the cap by the vent,
Further, in a state in which the cap is attached to the front end portion of the tip shaft or the barrel, the application portion is configured to be directly visible through the opening of the cap, and the opening formed in the top surface of the cap is formed. A liquid applicator characterized in that a groove portion continuously extending in a circumferential direction from the opening is radially formed on the top surface . A coating portion supported by a front shaft arranged at the front end portion of the barrel, a liquid bottle axially movably mounted in the barrel, and a liquid bottle filled with a coating liquid therein, the liquid bottle and the A liquid applicator provided with a valve set which is arranged between the application unit and opens by axial movement of the liquid bottle to supply the application liquid filled in the liquid bottle to the application unit. There
The cap, which is detachably attached to the front end portion of the front shaft or the barrel so as to cover the coating portion, has an opening for communicating the inside and the outside of the cap with the central portion of the top surface of the axial front end portion of the cap. And a vent hole is formed in the tip shaft supporting the coating part, and the coating part in the tip shaft is communicated with the cap by the vent hole.
Further, in a state in which the cap is attached to the front end portion of the tip shaft or the barrel, the application portion is configured to be directly visible through the opening of the cap, and the opening of the opening formed on the top surface of the cap is formed. A liquid applicator characterized in that a convex portion, which is discontinuous along the opening, is integrally formed with the cap, and is disposed so as to surround the round hole-shaped opening . A coating portion supported by a front shaft arranged at the front end portion of the barrel, a liquid bottle axially movably mounted in the barrel, and a liquid bottle filled with a coating liquid therein, the liquid bottle and the A liquid applicator provided with a valve set which is arranged between the application unit and opens by axial movement of the liquid bottle to supply the application liquid filled in the liquid bottle to the application unit. There
The cap, which is detachably attached to the front end portion of the front shaft or the barrel so as to cover the coating portion, has an opening for communicating the inside and the outside of the cap with the central portion of the top surface of the axial front end portion of the cap. And a vent hole is formed in the tip shaft supporting the coating part, and the coating part in the tip shaft is communicated with the cap by the vent hole.
Further, in a state in which the cap is attached to the front end portion of the tip shaft or the barrel, the application portion is configured to be directly visible through the opening of the cap, and the opening formed in the top surface of the cap is formed. A liquid applicator characterized in that a groove portion continuously extending in a circumferential direction from the opening is radially formed on the top surface .

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