JP4132446B2 - Knock-type applicator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a knock-type applicator incorporating a coating liquid containing a substance that easily settles, such as a metal powder pigment such as aluminum powder.
[0002]
[Prior art]
Conventionally, an applicator is disposed in a tip opening of a shaft cylinder in which a coating liquid container is formed, and a valve mechanism is disposed between the coating body and the coating liquid container. There is known an applicator in which is integrally provided.
This applicator presses the knock part and moves a movable member arranged in the coating liquid container, thereby opening the valve mechanism and allowing the coating liquid to be ejected from the container to the application body side for application. Is. For example, Japanese Utility Model Publication No. 1-132272 discloses an applicator in which a knock mechanism is provided at the rear, and a valve body and an applicator are integrally provided so as to advance and retreat on the axis by intermittent operation of the operating body. Are listed.
[0003]
[Problems to be solved by the invention]
The coating liquid that becomes a handwriting that emits a metallic luster such as gold or silver, that is, the coating liquid containing a metal powder pigment such as aluminum powder or brass powder, is compared with a pigment that is usually used. Due to the large specific gravity, precipitation is very likely to occur. This precipitate is mainly composed of a metal powder pigment and contains other coating solution components such as a resin, and if left to stand for a long period of time, it becomes a gelled product or a viscous product.
In the case of using the above-described coating solution that is likely to cause precipitation in the knock type applicator as described above, in order to disperse the generated precipitate again at the time of use, it is usually in a ball shape or a plate shape in the coating solution container. The stirring body is placed and the entire knocking applicator is swung around.
However, since the coating liquid stored in the coating liquid reservoir in front of the valve mechanism does not have such a re-dispersion mechanism, the precipitate that settles on the bottom part of the coating liquid reservoir is left to stand for a long period of time. It becomes easy to generate the problem that the precipitate becomes a hindered substance or a thickened substance, and this precipitation hinders the flow of the coating liquid, or the coating liquid separated into the precipitate and the supernatant liquid is discharged from the coated body.
[0004]
The present invention provides a knock-type applicator that can disperse and apply the deposited coating liquid when the coating liquid stored in the in-cylinder coating liquid reservoir in front of the valve mechanism is precipitated. Is an issue.
[0005]
[Means for Solving the Problems]
According to the present invention, an application body is slidably disposed in a tip opening portion of a shaft cylinder in which a coating liquid container is formed, and a valve mechanism is disposed between the coating body and the coating liquid container. The application body and the valve body are continuously provided by an application body holding member, the front end side of the shaft cylinder is a small-diameter portion in front of the valve mechanism, and the rear end side in the shaft cylinder is a large diameter in front of the valve mechanism. In the knock type applicator in which the small diameter portion and the large diameter portion serve as a coating liquid storage portion, a concave portion and / or a convex portion in the longitudinal direction of the axial tube are formed on the inner wall of the large diameter portion. The gist is a knock type applicator characterized in that a concave portion and / or a convex portion corresponding to the convex portion are formed on the outer wall of the application body holding member .
[0006]
[Action]
In the knock type applicator according to the present invention, when the knock member is pressed, the valve body is advanced to open the valve mechanism and is supplied to the large-diameter coating liquid reservoir. The supplied coating liquid is a gap between the inner wall of the large-diameter portion in which the concave or convex portion in the longitudinal direction of the shaft cylinder is formed and the outer wall of the application body holding member in which the concave or convex portion corresponding to the concave or convex portion is formed. It moves forward through and reaches the small diameter part and the application body.
At this time, since the coating liquid holding force by capillary action acts between the gap and the application body and the small diameter part, the gap between the inner wall of the large diameter part and the small diameter part and the outer wall of the application body and the application body holding member is the application liquid. It becomes a storage part.
If the coating solution is stored in the coating solution storage part and left in the horizontal direction, precipitation occurs in the coating solution. At that time, the precipitate is divided into a concave portion or a convex portion of the inner wall of the large-diameter portion and a concave portion or a convex portion of the outer wall of the holding member, respectively. It does not sink so much as to block the lower part in the direction).
In addition, if the coating liquid is stored in the coating liquid storage part and left to stand upward, the liquid deposits on the bottom of the storage part (the part on the lower side in the axial direction of the coating liquid storage part). However, since the outer wall of the application body holding member and the inner wall of the large-diameter portion have an uneven fitting shape, the cross section of the storage portion has a substantially uniform width, and therefore the thickness of the settled sediment is also substantially uniform. Become. Accordingly, when the valve is released, the influence on the precipitation caused by the coating liquid discharged to the reservoir is the same at any position, so that a homogeneous coating liquid can be discharged.
Furthermore, whether the application body is left sideways or left upward, when the knock member is pressed when the coating liquid is discharged, the application body holding member moves forward. Since the outer wall of the member and the inner wall of the large-diameter portion have a concave-convex fitting shape, it is re-dispersed by the applied coating liquid shear stress and moves to the small-diameter portion and the coated body, so that the dispersed coating liquid is discharged. Can be made.
[0007]
【Example】
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
1 to 3 show an embodiment of the present invention.
FIG. 1 is a vertical cross-sectional view of the first embodiment when not knocking, FIG. 2 is an enlarged vertical cross-sectional view of the main part of the first embodiment when knocking, and FIG. 3 is a cross-sectional view taken along line AA.
Reference numeral 1 denotes a rear shaft in which the coating liquid storage portion 2 is formed. The front shaft 3 having a small diameter at the front (upward in FIG. 1) and a large diameter at the rear and a flange 3a on the outer wall of the large diameter portion is provided at the front end opening of the rear shaft 1 and the flange 3a. Is inserted and fixed to a position where it contacts the end surface of the rear shaft 1.
[0008]
A valve mechanism is disposed between the front shaft 3 and the coating liquid storage unit 2. This valve mechanism forms a valve body 5a that elastically abuts against the seat portion 4a by being urged rearward by a lid member 4 that forms a seat portion 4a and a resilient member described later. It consists of a valve body 5.
[0009]
The lid body 4 is composed of a front small-diameter cylindrical portion 4b and a rear large-diameter cylindrical portion 4c. On the inner wall of the small-diameter cylindrical portion 4b, an inward circumferential projection 4d is formed. The seat 4a is formed on the front end face of the circumferential protrusion 4d. In addition, a plurality of concave portions or convex portions 4e extending in the longitudinal direction of the axial tube are formed on the front side of the circumferential projection 4d of the inner wall of the small diameter cylindrical portion 4b. The lid body 4 is press-fitted and fixed to the inner wall of the rear shaft 1 by a large-diameter cylindrical portion 4 c and serves as a lid body for the coating liquid storage portion 2 formed inside the rear shaft 1.
[0010]
The valve body 5 includes a front cylindrical portion 5b and a rear rod-shaped portion 5c, and a valve portion 5a is formed between the front cylindrical portion 5b and the rear rod-shaped portion 5c. The front cylindrical portion 5b and the valve portion 5a of the valve body 5 are slidably disposed in the small diameter cylindrical portion 4b of the lid body 4, and the valve body 5 is formed of a resilient spring such as a coil spring. The member 6 is biased backward.
[0011]
In front of the valve body 5, a cylindrical application body holding member 7 comprising a large-diameter hole 7a and a small-diameter hole 7b is slidable with the small-diameter hole 7b forward in the front shaft 3. Has been placed. Further, a concave portion formed in the longitudinal direction of the axial tube corresponding to the concave portion or the convex portion 4e formed in the longitudinal direction of the axial tube on the inner wall of the small diameter cylindrical portion 4b of the lid body 4 is provided on the outer wall of the application body holding member 7. Or the convex part 7c is formed, the small-diameter cylindrical part 4b inner wall of the cover body 4 and the outer wall of the application body holding member 7 have a fitting shape, and a gap is formed between these members. The inner wall of the small-diameter cylindrical portion 4b of the lid 4 and the outer wall of the application body holding member 7 are designed not to contact each other when knocking.
The application body holding member 7 is connected to the valve body 5 in such a manner that the front cylindrical portion 5b of the valve body 5 is press-fitted inside the large diameter portion 7a. However, the connection between the valve body 5 and the application body holding member 7 is not limited to the press-fitting as described above, and can be performed by other appropriate means such as screwing, fitting, and adhesion.
[0012]
An application body 8 is disposed inside the application body holding member 7. In this embodiment, as the coated body 8, natural fibers such as rabbits, horses and pigs, synthetic resin fibers such as nylon, polyethylene terephthalate and acrylic fibers, or the natural brush and synthetic resin brush are mixed. A straight portion 8b is formed by converging a large number of fibers such as slabs in the longitudinal direction, and fixing the end surface to the end surface by a method such as heat welding or adhesion, and forming a flange portion 8a. However, the application body is not limited to the brush head.
[0013]
The application body 8 has a front portion protruding from a front end opening portion of the front shaft 3, and a collar portion 8 a at a rear end portion of the application body holding member 7 at the boundary between the large diameter hole portion 7 a and the small diameter hole portion 7 b. It abuts against the portion 7d, and is clamped and fixed between the step portion 7d and the front end surface of the valve body 5.
[0014]
The rear rod-shaped part 5c of the valve body 5 is inserted and fixed to the front part of the cylindrical member 9 disposed in the coating liquid storage part 2 provided in the rear shaft 1. The tubular member 9 penetrates the tubular portion 2a into a bellows-shaped movable member 10 whose rear portion is inserted and fixed to the outside of the tubular portion 2a formed at the rear end of the coating liquid storage portion 2. Inserting. The bellows-like movable member 10 is covered with a knock crown 11 to form a knock portion. However, the knock portion can adopt a conventionally known method, and is not limited to the structure shown in the embodiment.
[0015]
Next, an effect | action at the time of using the knock type applicator of a present Example is demonstrated.
When the rear end portion of the knock member is pressed, the bellows-like movable portion contracts and the cylindrical member moves forward. As the tubular member moves, the valve body moves forward against the resilient force of the resilient member, and the valve mechanism is opened.
When the valve mechanism is opened, the coating liquid in the coating liquid storage unit ejects the valve body forward, the move forward through the gap between the large-diameter portion the inner wall and the coating member holder the outer wall of the small diameter portion and the applicator To reach. At this time, since the coating liquid holding force by capillary action works between the gap between the inner wall of the large diameter part and the outer wall of the application body holding member and the brush head and the small diameter part, the coating liquid is separated from the inner wall of the large diameter part . The coating solution is stored in a gap between the outer wall of the application body holding member and a gap between the inner wall of the small diameter portion and the application body. If the applicator is left sideways in the stored state, the solid matter in the coating solution can be divided into a convex portion formed on the inner wall of the large-diameter portion and a concave portion on the outer wall of the application body holding member, so that they can be precipitated. The bottom of the coating liquid flow passage can be prevented from being blocked.
In addition, if the coating liquid is stored in the coating liquid storage part and left to stand upward, solids in the coating liquid precipitate on the bottom of the storage part, but the inner wall of the large-diameter part and the brush Since the outer wall of the ear fixing tube has a fitting shape, it can be precipitated to a substantially uniform thickness.
Furthermore, when the knock member is pressed during the discharge of the coating liquid, the brush fixing tube and the brush head move forward. At this time, the coating liquid that has settled in the storage portion due to the fitting shape of the outer wall of the coating body holding member and the inner wall of the lid body is removed. Dispersed by the stress, moved to the small diameter portion and the application body, and then the dispersed application liquid can be discharged.
[0016]
FIG. 4 shows another embodiment.
In another embodiment, the application body holding member and the valve body are used as one member to form the valve body portion 15, and the application body 18 is a fiber converging body such as an acrylic fiber, a polyester fiber, a nylon fiber, or a rayon fiber. Otherwise, this embodiment is the same as the first embodiment except that a molded body such as urethane resin, polyester resin, or ceramic is used and the coated body 18 is press-fitted into the tip of the valve body portion 15.
The other embodiments described above have the following effects compared to the above embodiments. Since the rear end of the coated body is press-fitted into the front opening of the valve body, the coated body can be easily replaced even if the coating destination is crushed before the coating liquid runs out. Use up.
[0017]
FIG. 5 shows another embodiment. In another embodiment, a concave portion and a convex portion in the longitudinal direction of the shaft cylinder are formed on the inner wall of the large diameter portion, and the concave portion and the convex portion corresponding to the convex portion are formed on the outer wall holding the application body. is there.
[0018]
FIG. 6 shows still another embodiment. In this embodiment, the convex portion of the inner wall of the large-diameter portion is formed in a T-shaped cross section, and the concave portion of the outer wall of the application body holding is formed in a T-shaped cross section.
[0019]
FIG. 7 shows still another embodiment. In this embodiment, a plurality of protrusions on the inner wall of the large-diameter portion having different sizes are combined, and a corresponding recess is formed on the outer wall of the application body holding.
[0020]
【The invention's effect】
Since the knock type applicator according to the present invention has the above-described configuration, the coating liquid stored in the coating liquid flow passage between the movable member including the coating body and the inner wall of the shaft tip end opening portion precipitates. When this occurs, the deposited coating solution can be dispersed and applied when the coating solution is discharged, which is extremely useful in use.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an embodiment.
FIG. 2 is an enlarged vertical cross-sectional view of a main part at the time of knocking of the embodiment.
FIG. 3 is a cross-sectional view taken along the line AA in FIG.
FIG. 4 is a view corresponding to FIG. 2 of another embodiment.
FIG. 5 is a view corresponding to FIG. 3 of another embodiment.
FIG. 6 is a view corresponding to FIG. 3 of still another embodiment.
FIG. 7 is a view corresponding to FIG. 3 of still another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rear axis | shaft 2 Coating liquid storage chamber 3 Front axis | shaft 4 Lid body 5 Valve body 6 Elastic member 7 Application body holding member 8 Application body 9 Cylindrical member 10 Bellows-like movable member 11 Knock crown

Claims (1)

An application body is slidably disposed in a tip opening of a shaft cylinder in which a coating liquid container is formed, and a valve mechanism is disposed between the coating body and the coating liquid container, and the coating body The valve body is continuously provided by an application body holding member, the front end side of the shaft cylinder is a small diameter part, the front end of the valve mechanism and the rear end side of the shaft cylinder is a large diameter part, In the knock type applicator in which the small diameter portion and the large diameter portion serve as a coating liquid storage portion, a concave portion and / or a convex portion in the longitudinal direction of the shaft cylinder are formed on the inner wall of the large diameter portion, and the concave portion and / or the convex portion. A knock type applicator characterized in that a concave portion and / or a convex portion corresponding to is formed on the outer wall of the application body holding member .

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