JP2018011888A - Knock type applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a knock type applicator capable of supplying coating liquid while suppressing deformation or damage of an application unit.SOLUTION: A knock type applicator includes: a rest part containing a shaft cylinder; a movable part including an application unit and structured to be movable to the rest part in a shaft direction in the shaft cylinder; and a coating liquid storage part storing coating liquid to be supplied to the application unit. The rest part includes a first protruding part protruding toward the inside in a diameter direction of the shaft cylinder. The movable part incudes a first groove extending in the shaft direction and is engaged with the first protruding part and forming a rotation regulation part together with the first protruding part, and a second groove extending in the shaft direction and forming a coating liquid supply passage capable of communicating with the coating liquid storage part. The width of the second groove in a circumferential direction of the shaft cylinder is wider than the width of the first groove in the circumferential direction. The movable part is structured so that the rotation with respect to the rest part is regulated by abutment between the side surface of the first protruding part and the side surface of the first groove.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a knock-type applicator.

  A knock type applicator is known in which a coating liquid is supplied to an application body such as a brush by pressing a knock portion.

  For example, Patent Document 1 includes a shaft cylinder and a knock including an application body (coating unit) disposed in a tip opening of the shaft cylinder and a movable portion movable in the front-rear direction within the shaft cylinder. An applicator is disclosed. In this knock type applicator, when the movable part is knocked, the movable part moves in the front-rear direction with respect to the shaft cylinder, and the coating liquid is applied from the coating liquid storage part formed inside the shaft cylinder to the coating body on the tip side of the shaft cylinder. Is to be supplied.

Japanese Patent No. 4132446

By the way, when the knocking applicator is knocked, if the movable part including the application unit rotates in the circumferential direction with respect to the shaft tube, the application unit may be deformed or damaged.
In this regard, Patent Document 1 does not specifically disclose a measure for preventing deformation or damage of the coating unit.

  In view of the above circumstances, an object of at least one embodiment of the present invention is to provide a knock type applicator capable of supplying a coating liquid to a coating unit while suppressing deformation or damage of the coating unit.

(1) A knock-type applicator according to at least one embodiment of the present invention,
A stationary part including a shaft tube;
A movable part including an application unit and configured to be movable with respect to the stationary part along the axial direction of the axial cylinder in the axial cylinder;
A coating liquid storage unit that stores the coating liquid supplied to the coating unit;
The stationary portion includes a first convex portion that protrudes radially inward of the shaft cylinder,
The movable part is
A first groove extending along the axial direction to engage with the first convex portion and form a rotation restricting portion together with the first convex portion;
A second groove that extends along the axial direction and forms a coating liquid supply path capable of communicating with the coating liquid container;
Including
The width in the circumferential direction of the shaft cylinder of the second groove is larger than the width in the circumferential direction of the first groove,
The movable portion is configured such that the rotation with respect to the stationary portion is restricted when the side surface of the first convex portion and the side surface of the first groove abut.

In the configuration of (1) above, the rotation of the movable part including the application unit with respect to the stationary part is restricted by the side surface of the first protrusion and the side surface of the first groove coming into contact with each other in the rotation restricting part. Therefore, according to the structure of said (1), a coating liquid can be supplied to a coating unit, suppressing deformation | transformation or damage, such as a twist of a coating unit.
In the configuration (1), the second groove forming the coating liquid supply path has a larger width in the circumferential direction than the first groove forming the rotation restricting portion. Therefore, according to the configuration of (1) above, the flow passage cross-sectional area of the coating liquid supply path formed by the second groove can be made relatively large, so that the coating can be applied via a relatively wide coating liquid supply path. The liquid can be smoothly supplied to the coating unit.

(2) In some embodiments, in the configuration of (1) above,
The stationary portion further includes a second convex portion provided so as to protrude inward in the radial direction of the shaft cylinder so as to enter the second groove.

  According to the configuration of (2) above, when the movable part moves in the axial direction with respect to the stationary part, the second convex part is in a state where the second convex part has entered the second groove formed in the movable part. In contrast, the second groove moves in the axial direction. Therefore, in the second groove that forms the coating liquid supply path, when the coating liquid supply path is blocked by an aggregate of particles contained in the coating liquid, the movable part is moved in the axial direction with respect to the stationary part. By doing so, the aggregate can be crushed by applying a shearing force to the aggregate that closes the coating liquid supply path by the second convex portion that enters the second groove. Therefore, the coating liquid containing particles can be smoothly supplied from the coating unit.

(3) In some embodiments, in the configuration of (2) above,
The width of the first groove in the circumferential direction is w _g1 , the width of the first protrusion in the circumferential direction is w _p1 , the width of the second groove in the circumferential direction is w _g2, and the width in the circumferential direction is When the width of the second convex portion is w _p2 , (w _g1 −w _p1 ) <(w _g2 −w _p2 ) is satisfied.

In the configuration of (3) above, since the difference (w _g1 −w _p1 ) between the width of the first groove and the width of the first protrusion in the rotation restricting portion is relatively small, deformation such as kinking of the coating unit can be effectively performed. Or damage can be suppressed. Further, in the configuration of (3) above, since the difference (w _g2 -w _p2 ) between the width of the second groove and the width of the second convex portion in the coating liquid supply path is relatively large, The coating liquid can be smoothly supplied to the coating unit. Therefore, according to the configuration of (3) above, the coating liquid can be smoothly supplied to the coating unit while effectively suppressing deformation or damage such as kinking of the coating unit.

(4) In some embodiments, in the configuration of (2) or (3) above,
In the radial direction of the barrel, the size of the gap between the second groove and the second protrusion and g _r, in the circumferential direction of the barrel, and the second protrusion and the second groove G _r <g _c is satisfied, where g _c is the size of the gap between the two.

In the configuration of (4) above, since the size g _r of the radial gap formed in the coating liquid supply path is relatively smaller than the size g _c of the circumferential gap, the coating is applied by the second convex portion. The aggregate can be crushed by effectively applying a shearing force to the aggregate of particles blocking the liquid supply path. Further, since the size g _c of the circumferential gap formed in the coating liquid supply path is relatively larger than the size g _r of the radial gap, particles contained in the coating liquid pass through the coating liquid supply path. It can be distributed smoothly. Therefore, according to the configuration of (4), the coating liquid can be smoothly supplied to the coating unit while effectively crushing the particle aggregate.

(5) In some embodiments, in the above configuration (4), meet _{2g r ≦ g c ≦ 5g r} .

In the configuration of (5) above, the size g _r of the radial gap formed in the coating liquid supply path and the size g _c of the circumferential gap satisfy 2g _r ≦ g _c. The space has a moderately limited width. Accordingly, the coating liquid can be smoothly supplied to the coating unit while shearing force is effectively applied to the particle aggregates and the aggregates are crushed. In the above configuration (5), because of the size g _r and circumferential clearance size g _c of the radial gap satisfy g _c ≦ 5 g _r, the clearance is moderate the width in the radial direction It is a space secured. Thereby, the aggregate of particles can enter the radial gap formed in the coating liquid supply path, and the aggregate is easily crushed. Therefore, according to the configuration of (5) above, the coating liquid can be smoothly supplied to the coating unit while effectively crushing the particle aggregate.

(6) In some embodiments, in any one of the above configurations (2) to (5),
The coating liquid includes particles having an average particle diameter d _m,
Wherein between the bottom of the second groove and the top of the second convex portion, a gap is formed larger than the average particle diameter d _m.

According to the above configuration (6), through the coating liquid supply passage gap larger than the average particle diameter d _m is formed between the bottom of the top portion and the second groove of the second protruding portion, the average particle size There can be supplied to the coating solution containing particles is d _m, to smooth the coating unit.

(7) In some embodiments, in the configuration of (5) above,
The second convex part has a top surface extending in the axial direction so as to face the bottom surface of the second groove.

  According to the configuration of (7) above, the top surface of the second convex portion and the bottom surface of the second groove are opposed to each other, that is, the surfaces face each other. Therefore, when the movable part moves in the axial direction with respect to the stationary part, the top surface of the second convex part and the bottom surface of the second groove that oppose each other move relatively, so that a shearing force is applied to the coating liquid containing particles. Can be effectively operated to improve the crushing efficiency.

(8) In some embodiments, in any one of the above configurations (1) to (7),
An annular passage is formed so as to surround the coating unit on the tip side of the first convex portion in the shaft cylinder,
The annular passage communicates with the coating liquid supply passage.

Since there is a difference in the amount of coating liquid between the position where the first convex portion is formed and the position where the first convex portion is not formed inside the shaft tube, the amount of the coating liquid supplied to the coating unit There may be unevenness in the amount.
In this regard, according to the configuration of (8) above, the coating liquid from the coating liquid supply path merges in an annular passage formed so as to surround the coating unit on the tip side of the first convex portion, and the annular passage To be supplied to the coating unit. Therefore, unevenness in the amount of the coating liquid supplied to the coating unit can be suppressed, and the coating liquid can be effectively supplied to the coating unit.

(9) In some embodiments, in any one of the above configurations (1) to (8), the coating solution includes tabular particles.

When the coating liquid contains tabular particles, it is difficult to smoothly pass the tabular particles through the coating liquid supply path because they are easily caught by corners or the like in the flow path of the coating liquid.
In this regard, even when the coating liquid contains flat-plate-like particles as in (9) above, in the configuration of (1) above, the rotation restricting portion is configured separately from the rotation restricting portion. Since the coating liquid supply path formed by the second groove having a width wider than one groove is provided, the coating liquid containing the plate-like particles can be smoothly supplied to the coating unit via the coating liquid supply path. it can.

(10) In some embodiments, in the configuration of (9), an average particle size of the tabular grains is 20 μm or more and 300 μm or less.

  According to the configuration of (10) above, since the average particle diameter of the particles is 20 μm or more, a function of being added to the coating liquid by the particles can be sufficiently obtained in a state where the coating liquid is applied to the object. Moreover, according to the configuration of (10) above, since the average particle diameter of the particles is 300 μm or less, the particles easily pass through the coating liquid supply path. For this reason, a coating liquid can be smoothly supplied to a coating unit via a coating liquid supply path with a particle.

(11) In some embodiments, in any one of the configurations (1) to (10), the viscosity of the coating solution is 10 mPa · s or more and 200 mPa · s or less.

  According to the configuration of (11) above, since the viscosity of the coating liquid is 10 mPa · s or more, dripping of the coating liquid supplied to the coating unit can be suppressed. Moreover, according to the configuration of (11) above, the viscosity of the coating liquid is 200 mPa · s or less, so that the coating liquid can be smoothly supplied to the coating unit via the coating liquid supply path.

(12) In some embodiments, in any one of the above configurations (1) to (11),
A valve mechanism capable of switching a communication state between the coating liquid container and the coating liquid supply path is further provided.

  According to the configuration of (12) above, it is necessary to supply the coating liquid to the coating unit via the coating liquid supply path by switching the communication state between the coating liquid container and the coating liquid supply path by the valve mechanism. When not, the coating liquid container and the coating liquid supply path can be maintained in a state that does not communicate with each other. Thereby, the supply amount of the coating liquid to the coating unit can be adjusted, and dripping of the coating liquid supplied to the coating unit can be suppressed.

(13) In some embodiments, in the configuration of (12) above,
The valve mechanism is
A biasing member for biasing the movable part backward;
A valve seat provided in the stationary part;
A valve body provided in the movable part;
Including
When the valve mechanism is closed, the movable portion is urged rearward by the urging member, and the valve body portion contacts the valve seat portion,
When the valve mechanism is opened, the movable part moves forward against the urging force of the urging member, so that the valve body part is separated forward from the valve seat part.

  According to the configuration of (13) above, the valve mechanism includes the valve seat part provided in the stationary part and the valve body part provided in the movable part. The valve mechanism can be opened and closed by moving it. Thereby, the supply amount of the coating liquid to the coating unit can be adjusted, and dripping of the coating liquid supplied to the coating unit can be suppressed.

(14) A knock type applicator according to at least one embodiment of the present invention,
A stationary part including a shaft tube;
A movable part including an application unit and configured to be movable with respect to the stationary part along the axial direction of the axial cylinder in the axial cylinder;
A coating liquid storage unit that stores the coating liquid supplied to the coating unit;
The movable part includes a flow path groove that extends along the axial direction and forms a coating liquid supply path that can communicate with the coating liquid storage part.
The stationary part includes a convex part provided so as to protrude inward in the radial direction of the shaft cylinder so as to enter the flow channel groove,
Gap between the in the radial direction of the barrel, the size of the gap between the flow path groove and the convex portion and g _r, in the circumferential direction of the barrel, the channel groove and the convex portion of the size when the _{g c,} satisfy _g r <g _c.

In the configuration of (14), the size g _r of the radial gap formed in the coating solution supply path is relatively smaller than the size g _c of the circumferential gap, so that the coating solution is supplied by the convex portion. The aggregate can be crushed by effectively applying a shearing force to the aggregate of particles blocking the path. Further, since the size g _c of the circumferential gap formed in the coating liquid supply path is relatively larger than the size g _r of the radial gap, particles contained in the coating liquid pass through the coating liquid supply path. It can be distributed smoothly. Therefore, according to the configuration of (14), the coating liquid can be smoothly supplied to the coating unit while effectively crushing the particle aggregate.

(15) A knock-type applicator according to at least one embodiment of the present invention,
A stationary part including a shaft tube;
A movable part including an application unit and configured to be movable with respect to the stationary part along the axial direction of the axial cylinder in the axial cylinder;
A coating liquid storage unit that stores the coating liquid supplied to the coating unit;
The movable part includes a flow path groove that extends along the axial direction and forms a coating liquid supply path that can communicate with the coating liquid storage part.
The stationary part includes a convex part provided so as to protrude inward in the radial direction of the shaft cylinder so as to enter the flow channel groove,
The coating liquid includes particles having an average particle diameter d _m,
Wherein between the top of the convex portion and the bottom portion of the flow path groove, the gap the greater than the average particle diameter d _m is formed.

According to the configuration of (15) above, when the movable part moves in the axial direction with respect to the stationary part, the convex part enters the flow channel groove formed in the movable part, and flows to the convex part. The road groove moves in the axial direction. Therefore, when the coating liquid supply path is blocked by aggregates of particles contained in the coating liquid in the flow channel groove forming the coating liquid supply path, the movable part is moved in the axial direction with respect to the stationary part. By doing so, the agglomerates can be crushed by applying a shearing force to the agglomerates closing the coating liquid supply path by the convex portions entering the flow channel grooves. Further, according to the above configuration (15), through the coating liquid supply passage gap larger than the average particle diameter d _m is formed between the bottom of the top portion and the flow path grooves of the protrusions, the average particle size There can be supplied to the coating solution containing particles is d _m, to smooth the coating unit. Therefore, according to the above configuration (15), while crushed aggregates for closing the coating liquid supply passage, that the average particle diameter is supplied to the coating solution containing particles is d _m, the smooth coating unit it can.

  According to at least one embodiment of the present invention, there is provided a knock type applicator capable of supplying a coating liquid to a coating unit while suppressing deformation or damage of the coating unit.

It is a longitudinal cross-sectional view of the knock type applicator according to one embodiment. It is an expanded sectional view of the tip side part of the knock type applicator shown in Drawing 1, and is a figure showing a non-knock state. It is an expanded sectional view of the tip side part of the knock type applicator shown in Drawing 1, and is a figure showing a knocked state. It is IV-IV sectional drawing of the knock type applicator shown in FIG. FIG. 5 is a partially enlarged view of FIG. 4, showing a periphery of a rotation restricting portion and a coating liquid supply path. FIG. 5 is a partially enlarged view of FIG. 4, showing a periphery of a rotation restricting portion and a coating liquid supply path.

  Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described in the embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples. Absent.

  The knock type applicator described below is, for example, a cosmetic device (for example, an eyeliner, eyebrow, concealer, foundation, nail enamel, lip color, etc.) for applying a cosmetic liquid to the skin, or paper or plastic. The present invention can be applied to a writing instrument for writing or drawing on an object. However, the use of the knock type applicator according to the present invention is not limited to these.

  FIG. 1 is a longitudinal sectional view of a knock type applicator according to an embodiment, and shows a state where the knock portion is not knocked (non-knock state) in the knock type applicator. 2 and 3 are enlarged sectional views of the tip side portion of the knock type applicator shown in FIG. 1, FIG. 2 shows a non-knock state of the knock type applicator, and FIG. 3 shows a knock portion in the knock type applicator. Indicates a knocked state (knock state). 4 is a cross-sectional view of the knock type applicator shown in FIG. 2 taken along the line IV-IV.

As shown in FIGS. 1 to 4, the knock type applicator 1 includes a stationary part 2 including a shaft cylinder 3 and a coating unit 5, and a stationary part along the axial direction of the shaft cylinder 3 inside the shaft cylinder 3. 2, a movable part 4 configured to be movable with respect to 2, a coating liquid storage part 6, and a knock part 8.
In the following, the axial direction or radial direction of the barrel 3 may be simply referred to as “axial direction” or “radial direction”.

The shaft cylinder 3 constituting the stationary part 2 includes a rear shaft 12 disposed on the rear side and a front shaft 14 disposed on the front side. The rear end portion of the front shaft 14 is a position where the rear side surface of the annular convex portion 14a (see FIG. 2) formed on the outer peripheral surface of the front shaft 14 and the front end surface 12a (see FIG. 2) of the rear shaft 12 abut. Until the tip of the rear shaft 12 is inserted.
The stationary part 2 further includes a first tubular member 16 disposed coaxially with the shaft tube 3 inside the shaft tube 3. The first cylindrical member 16 is press-fitted into the front shaft 14 and is fixed at a position where the flange portion 16b provided at the rear end portion of the first cylindrical member 16 and the rear end surface 14b of the front shaft 14 abut. Yes.
In other embodiments, the front shaft 14 and the rear shaft 12 may be integrally formed to constitute the shaft cylinder 3. Alternatively, the shaft tube 3 and the first tubular member 16 may be integrally formed.

The coating unit 5 constituting the movable unit 4 includes a coating body 20, a holding member 24 that holds the coating body 20, a support shaft that is disposed between the holding member 24 and the knock unit 8, and is connected to the holding member 24. 26.
The movable part 4 further includes a second cylindrical member 22 provided between the coating unit 5 and the stationary part 2. The second cylindrical member 22 is provided with a stepped portion 22a, and the distal end portion of the holding member 24 is press-fitted into the second tubular member 22 so that the distal end surface of the holding member 24 and the stepped portion 22a come into contact with each other. Fixed in position.
In other embodiments, the holding member 24 and the second cylindrical member 22 may be integrally formed.

  The application body 20 is disposed on the distal end side in the movable portion 4. Further, the application body 20 penetrates the tip opening 13 formed at the tip portion of the front shaft 14 at least in the knocked state, and at least a part of the application body 20 is in front of the tip opening 13. It is supposed to be located.

  The application body 20 shown in FIGS. 1 to 4 is a brush (brush) formed by bundling a large number of elongated fibers having a fixed length. The brush head may be fixed to the holding member 24 by, for example, welding one end of the brush head to the holding member 24. The fibers constituting the brush ears are, for example, polyamide resin fibers (6,6-nylon, 6-nylon, 12-nylon, 6,10-nylon, 6,12-nylon, etc.), polyester resin fibers (polyethylene terephthalate, poly Butylene terephthalate), polyurethane resin fiber, polyacrylonitrile resin fiber, polystyrene resin fiber, acrylonitrile-styrene copolymer resin fiber, or acrylonitrile-butadiene copolymer resin fiber. Alternatively, animal hair (horse, deer, pig, squirrel, sheep, etc.) may be used as the fiber constituting the brush ear. Furthermore, a combination of a plurality of types of fibers (for example, the above types of fibers) may be used as the fibers constituting the brush ear.

  In other embodiments, the application body 20 may be an application body other than a brush ear. For example, in some embodiments, the application body 20 may be an application body having a porous structure.

  Inside the stationary part 2, a coating liquid storage part 6 that stores the coating liquid supplied to the coating body 20 is formed. In one embodiment, the application liquid in the application liquid storage unit 6 is supplied to the application body 20 via a valve mechanism 40 described later.

The knock type applicator 1 may further include a stirring body 61 (see FIG. 1) placed in the coating liquid storage unit 6. By shaking the knock type applicator 1 in the front-rear direction, the stirrer 61 moves in the front-rear direction inside the coating liquid container 6. Thereby, the coating liquid accommodated in the inside of the coating liquid accommodating part 6 can be stirred.
For example, when particles having a large specific gravity are contained in the coating liquid, such particles tend to settle when the knock type applicator 1 is left standing for a long time. Therefore, the particles can be dispersed by stirring the coating liquid in the coating liquid storage unit 6 with the stirring body 61.
Alternatively, when particles contained in the coating liquid are aggregated in the coating liquid storage unit 6, the aggregated particles can be broken by the stirrer 61 to uniformly disperse the particles in the coating liquid.

In the exemplary embodiment shown in FIG. 1, the agitator 61 includes a plate-like member 58 and a shaft cylinder 3 (here, the rear shaft 12) from the plate-like member 58 at the front end portion and the rear end portion of the plate-like member 58. A projection 59 provided so as to project toward the inner wall, and a projection 60 provided so as to project from the plate-like member 58 toward the inner wall of the shaft tube 3 in the vicinity of the center of the plate-like member 58. ,including.
The stirrer 61 has protrusions 59 provided at the front end portion and the rear end portion of the plate-like member 58, thereby reducing the contact area of the stirrer 61 with respect to the inner wall of the shaft tube 3. 3 can be prevented from sticking to the inner wall. Thereby, the stirring body 61 can be reliably moved at the time of stirring start.
Further, since the stirring member 61 has the protrusion 60 provided near the center of the plate-like member 58, when the knock type applicator 1 is laid down, the protrusion 60 is used as a fulcrum for the plate-like member 58. Only one of the front end portion and the rear end portion contacts the inner wall of the shaft tube 3. Therefore, the stirring body 61 can be easily moved by the seesaw effect, and the stirring effect can be obtained with a small force.

  In addition, in order to efficiently stir and break down sediments and aggregates in the coating liquid storage unit 6, the material of the stirring body 61 is selected in consideration of weight and reactivity (corrosiveness, etc.) with the coating liquid. . From such a viewpoint, the stirring member 61 may be made of metal such as stainless steel, for example.

  In the exemplary embodiment shown in FIG. 1, the knock portion 8 includes a knock crown 9 disposed behind the movable portion 4, and an expansion / contraction disposed between the knock crown 9 and the rear end portion 4 a of the movable portion 4. And a body 10. When the knock portion is knocked (that is, when the knock crown 9 is pushed forward from the rear), the movable portion 4 moves forward together with the knock crown 9 (see FIG. 3). A coating liquid is supplied to the body 20.

  The stretchable body 10 has a bell-like shape, and is arranged so that the top portion faces the knock crown 9 side. The bell-shaped lower end of the telescopic body 10 has an annular protrusion 12b provided on the inner peripheral side of the rear shaft 12 on the rear end side of the rear shaft 12, and an inner periphery of the rear shaft 12 behind the annular protrusion 12b. It is clamped by the sleeve 18 provided on the side, and thereby the axial position and the radial position of the lower end of the expandable body 10 are regulated.

  The stretchable body 10 has a role of sealing the coating liquid container 6 on the rear end side of the coating liquid container 6. When the knock crown 9 is pushed forward from the rear at the time of knocking, the expanding / contracting body 10 is deformed as the knock crown 9 and the movable portion 4 move (that is, while expanding and contracting in the front-rear direction), and the coating liquid storage portion. 6 is sealed.

  In some embodiments, the annular protrusion 12b provided on the inner peripheral side of the rear shaft 12 on the rear end side of the rear shaft 12 extends in the axial direction as shown in FIG. You may have the guide part 12c for guiding the movement of a direction (front-back direction).

  In some embodiments, the stationary portion 2 includes a first convex portion 30 that protrudes inward in the radial direction of the shaft tube 3, and the movable portion 4 extends along the axial direction and is a first convex portion. 30 includes a first groove 34 that engages 30 and a second groove 36 that extends in the axial direction. In the exemplary embodiment shown in FIGS. 1 to 4, the first convex portion 30 is formed on the inner peripheral surface of the first cylindrical member 16 (stationary portion 2), and the second cylindrical member 22 (movable). A first groove 34 and a second groove 36 are formed on the outer peripheral surface of the portion 4).

The first protrusion 30 and the first groove 34 are engaged with each other to form a rotation restricting portion 27. Then, in the rotation restricting portion 27, the rotation of the movable portion 4 including the application unit 5 with respect to the stationary portion 2 is restricted by the contact of the side surface 30 a of the first convex portion 30 with the side surface 34 a of the first groove 34. It has come to be. Accordingly, the coating liquid from the coating liquid storage unit 6 can be supplied to the coating body 20 of the coating unit 5 while suppressing deformation or damage such as kinking of the coating unit 5 including the coating body 20 (for example, a brush). it can.
In the knock type applicator 1, one or more rotation restricting portions 27 may be provided. In the exemplary embodiment shown in FIGS. 1 to 4, the two rotation restricting portions 27 are provided at target positions with the center point O of the shaft tube 3 interposed therebetween.

Further, the second groove 36 forms a coating liquid supply path 28 that can communicate with the coating liquid container 6.
The width w _g2 (see FIG. 5) in the circumferential direction of the second groove 36 that forms the coating liquid supply path 28 is the width w _g1 in the circumferential direction of the first groove 34 that forms the rotation restricting portion 27 (see FIG. 5). Larger than reference).
FIG. 5 is a partially enlarged view of FIG. 4 and shows the periphery of the rotation restricting portion 27 and the coating liquid supply path 28.
As described above, the second groove 36 that forms the coating liquid supply path 28 has a larger width in the circumferential direction than the first groove 34 that constitutes the rotation restricting portion 27, and thus the coating liquid formed by the second groove 36. The flow path cross-sectional area of the supply path 28 can be made relatively large. For this reason, the coating liquid can be smoothly supplied to the coating body 20 of the coating unit 5 through the relatively wide coating liquid supply path 28.
In the knock type applicator 1, one or more coating liquid supply paths 28 may be provided. In the exemplary embodiment shown in FIGS. 1 to 4, four coating solution supply paths 28 are provided side by side in the circumferential direction.

  In some embodiments, the stationary portion 2 further includes a second convex portion 32 that protrudes inward in the radial direction of the shaft tube 3 so as to enter the second groove 36. 1-4, the 2nd convex part 32 is formed in the internal peripheral surface of the 1st cylindrical member 16 (stationary part 2), and this 2nd convex part 32 is a shaft. It protrudes so that it may penetrate | invade into the 2nd groove | channel 36 formed in the outer peripheral surface of the 2nd cylindrical member 22 (movable part 4) toward the radial inside of the cylinder 3. As shown in FIG.

When the stationary part 2 has the second convex part 32 described above, when the movable part 4 is knocked and moves in the axial direction with respect to the stationary part 2, the second part 36 is formed in the second groove 36 formed in the movable part 4. The second groove 36 moves in the axial direction with respect to the second convex portion 32 in a state where the convex portion 32 has entered.
Here, when particles are included in the coating liquid, the particles included in the coating liquid may aggregate in the second groove 36 forming the coating liquid supply path 28 to form an aggregate. Even when the coating liquid supply path is closed by the aggregate formed in the coating liquid supply path 28 in this manner, if the stationary portion 2 has the second convex portion 32 as described above. By moving the movable part 4 in the axial direction with respect to the stationary part 2, the second convex part 32 entering the second groove 36 causes a shearing force to act on the aggregate closing the coating liquid supply path 28. Thus, the aggregate can be crushed. Therefore, the coating liquid containing particles can be smoothly supplied from the coating body 20 of the coating unit 5.

  Note that the second convex portion 32 is provided in at least a part of the region in which the second groove 36 moves in the axial direction while the movable portion 4 moves in the front-rear direction when the movable portion 4 is knocked. Also good.

In the present specification, the knocking state of the knock type applicator 1 means that the position of the knocking portion 8 is determined by applying a force in the direction from the rear to the front with respect to the knocking portion 8 by pushing the knocking portion 8. In addition, it means a state in which the knock portion 8 is moving forward from the position of the knock portion 8 in the non-knock state where the knock portion 8 is not pushed in (see FIG. 2).
In this regard, FIG. 3 is a diagram showing a state in which the movable portion 4 has moved to the most distal side with respect to the stationary portion 2 in the knocked state of the knock type applicator 1. At this time, the front end surface 22b of the second cylindrical member 22 comes into contact with a rear end surface 52a provided at a front end portion of the front shaft 14 (described later). As a result, the position of the second tubular member 22 in the axial direction (the position on the most distal side) is regulated.

In some embodiments, the width of the first groove 34 in the circumferential direction of the shaft tube 3 is w _g1 , the width of the first protrusion 30 is w _p1 , the width of the second groove 36 is w _g2 , and the second protrusion When the width of the portion 32 is w _p2 (see FIG. 5), the relationship of (w _g1 −w _p1 ) <(w _g2 −w _p2 ) is established.

If the difference (w _g1 −w _p1 ) between the width of the first groove 34 and the width of the first protrusion 30 in the rotation restricting portion 27 is relatively small, the rotation of the movable portion 4 with respect to the stationary portion 2 is effectively restricted. It is possible to effectively suppress deformation or damage such as kinking of the coating unit 5 (the coating body 20 or the like). If the difference (w _g2 -w _p2 ) between the width of the second groove 36 and the width of the second protrusion 32 in the coating liquid supply path 28 is relatively large, the coating liquid is smoothly passed through the coating liquid supply path 28. Can be supplied to the coating unit 5 (such as the coating body 20).
Therefore, according to the above-described embodiment, the coating liquid is smoothly supplied to the coating unit 5 (the coating body 20 or the like) while effectively suppressing deformation or damage of the coating unit 5 (the coating body 20 or the like). can do.

In some embodiments, the size of the gap between the second convex portion 32 in the radial direction of the shaft tube 3 and the second groove 36 and g _r, the second convex portion 32 in the circumferential direction of the shaft tube 3 When the size of the gap between the second groove 36 is g _c (see FIG. 6), the relationship g _r <g _c is established.
6 is a partially enlarged view of FIG. 4 and shows the periphery of the rotation restricting portion 27 and the coating liquid supply path 28. FIG.

When the size g _r of the radial gap formed in the coating liquid supply path 28 is relatively smaller than the size g _c of the circumferential gap, the coating liquid supply path 28 is blocked by the second convex portion 32. The agglomerates can be crushed by effectively applying a shearing force to the agglomerates of particles. Further, when the size g _c of the circumferential gap formed in the coating liquid supply path 28 is relatively larger than the size g _r of the radial gap, particles contained in the coating liquid are applied to the coating liquid supply path. 28 can be distributed smoothly.
Therefore, according to the above-described embodiment, the coating liquid can be smoothly supplied to the coating unit 5 (the coating body 20 or the like) while effectively crushing the particle aggregate.

In some embodiments, the size g _r of the gap in the radial direction between the second convex portion 32 and the second groove 36 and g _c in the circumferential direction (see FIG. 6) are 2g _r ≦ g _c ≦. Satisfy 5 _gr .

When the size g _r of the radial gap formed in the coating liquid supply path 28 and the size g _c of the circumferential gap satisfy 2g _r ≦ g _c , the width of the gap is appropriately limited. Space. Accordingly, the coating liquid can be smoothly supplied to the coating unit 5 (the coating body 20 or the like) while the shearing force is effectively applied to the particle aggregate to crush the aggregate. Further, if the size g _c of size g _r and circumferential clearance in the radial direction of the gap satisfies g _c ≦ 5 g _r, the width of the clearance the radial direction is a moderately reserved space . Thereby, the aggregate of particles can enter the radial gap formed in the coating liquid supply path 28, and the aggregate is easily crushed.
Therefore, according to the above-described embodiment, the coating liquid can be smoothly supplied to the coating unit 5 (the coating body 20 or the like) while effectively crushing the particle aggregate.

  In some embodiments, the coating liquid supplied to the coating unit 5 (such as the coating body 20) may include particles.

In some embodiments, the coating solution comprises particles having an average particle diameter of d _m, the top 32a of the second protrusion 32 and between the bottom 36a of the second groove 36 (see FIG. 4), the average particle a gap is formed larger than the diameter d _m. That is, in the example shown in FIGS. 4 and 6, the average particle diameter d _m, the size g _r of the gap of the coating solution radially formed in the supply passage 28, d m _{<g r} is satisfied.

In the present specification, the average particle diameter of the particles refers to a value obtained by calculating the number average for the average diameter that is the average value of the maximum diameter and the minimum diameter of each particle.
For example, the average particle diameter of tabular grains with thin grains refers to a value obtained by calculating the number average for the average diameter of the long side and the short side of each grain.

According to the embodiment described above, through the top portion 32a and the coating liquid supply passage 28 of larger clearance than the average particle diameter d _m is formed between the bottom 36a of the second groove 36 of the second protrusion 32, can mean particle size of the coating solution containing the particles is d _m, smoothly supplied to the coating unit 5 (coating material 20, etc.).

  In some embodiments, the particles contained in the coating liquid may be pigment particles for imparting various performances (for example, glitter, gloss, glossiness, matte feeling) to the coating liquid.

In some embodiments, the particles contained in the coating solution may be tabular particles. The tabular grain may be, for example, a pearl pigment or a lame agent.
The pearl pigment described above may be, for example, particles obtained by coating the surface of lamellar mica particles with a metal oxide such as titanium oxide, tin oxide, or iron oxide.
The above lame agent is, for example, particles obtained by pulverizing after laminating a plurality of thin layers of a plurality of resins having different refractive indexes (for example, acrylic resin (PMMA or the like) and PET (polyethylene terephthalate) or the like), or Particles obtained by coating a resin film (for example, a PET film) with a metal (for example, aluminum) by vapor deposition or the like and then pulverizing the film may be used.

When the coating liquid contains tabular particles, the tabular particles are smoothly passed through the coating liquid supply path 28 for the reason that the tabular particles are easily caught by the corners or the like in the flow path of the coating liquid. It ’s difficult.
In this regard, even when the coating liquid includes the flat plate-like particles as described above, according to the knock type applicator 1 according to the above-described embodiment, in addition to the rotation restricting portion 27, the rotation restricting portion 27. Since the coating liquid supply path 28 formed by the second groove 36 having a width larger than that of the first groove 34 constituting the portion 27 is provided, the coating liquid containing plate-like particles is provided via the coating liquid supply path 28. Can be smoothly supplied to the coating unit 5 (such as the coating body 20).

  When the coating solution contains tabular grains, the average grain size of the tabular grains may be 20 μm or more and 300 μm or less, preferably 50 μm or more and 250 μm or less, and more preferably 50 μm or more. It may be 200 μm or less.

  If the average particle diameter of the plate-like particles is equal to or greater than the above lower limit value, the function of being added to the coating liquid by the particles can be sufficiently obtained in a state where the coating liquid is applied to the object. Further, if the average particle diameter of the tabular particles is equal to or less than the above upper limit value, the particles easily pass through the coating liquid supply path, so that the coating liquid is applied together with the particles via the coating liquid supply path 28. It can supply smoothly to the unit 5 (application body 20).

  When the coating liquid contains tabular grains, the average thickness of the tabular grains may be 0.5 μm or more and 3 μm or less, and more preferably 1 μm or more and 2 μm or less. .

  Further, the viscosity of the coating solution supplied to the coating unit 5 (the coating body 20) may be 10 mPa · s or more and 200 mPa · s or less, preferably 15 mPa · s or more and 150 mPa · s or less, More preferably, it may be 15 mPa · s or more and 100 mPa · s or less.

  If the viscosity of the coating liquid is equal to or higher than the above lower limit value, dripping of the coating liquid supplied to the coating unit 5 (applying body 20) can be suppressed. Further, when the viscosity of the coating liquid is equal to or lower than the above upper limit value, the coating liquid can be smoothly supplied to the coating unit 5 (the coating body 20) via the coating liquid supply path 28.

  In some embodiments, the second convex portion 32 has a top surface that extends in the axial direction so as to face the bottom surface of the second groove 36. In the exemplary embodiment shown in FIGS. 1 to 4, the top 32 a of the second protrusion 32 forms a planar top surface, and the bottom 36 a of the second groove 36 extends in the axial direction. The top surface (top portion 32a) of the second convex portion 32 and the bottom surface (bottom portion 36a) of the second groove 36 face each other.

  As described above, the top surface of the second convex portion 32 and the bottom surface of the second groove 36 are opposed to each other, that is, the surfaces face each other. When moving in the direction, the top surface (top portion 32a) of the second protrusion 32 and the bottom surface (bottom portion 36a) of the second groove 36 that oppose each other move relatively, thereby applying a shearing force to the coating liquid containing particles. Effectively acting, the crushing efficiency of the particle aggregate can be improved.

  The top surface (top portion 32a) of the second convex portion 32 is at least of the region in which the second groove 36 moves in the axial direction while the movable portion 4 moves in the front-rear direction when the movable portion 4 is knocked. It may be formed in a part.

In some embodiments, an annular passage 56 is formed inside the shaft tube 3 on the tip side of the first convex portion 30 so as to surround the application body 20 (application unit 5). It communicates with the liquid supply path 28.
In this case, the coating liquid from the coating liquid supply path 28 merges in the annular passage 56 formed so as to surround the application body 20 (the coating unit 5) on the tip side of the first convex portion 30, and the annular passage 56. Is supplied to the application body 20 (application unit 5). Thereby, since the nonuniformity of the quantity of the coating liquid supplied to the application body 20 (application unit 5) is suppressed, it is possible to effectively supply the application liquid to the application body 20 (application unit 5).

In some embodiments, the knock type applicator 1 further includes a valve mechanism 40 that can switch a communication state between the coating liquid storage unit 6 and the coating liquid supply path 28.
In the exemplary embodiment shown in FIGS. 1 to 4, the valve mechanism 40 is provided between the coating liquid storage unit 6 and the coating liquid supply path 28, and biases the movable unit 4 backward. A spring 46 that is an urging member, a valve seat portion 42 provided in the stationary portion 2, and a valve body portion 44 provided in the movable portion 4 are included.
The valve seat portion 42 is formed by a protruding portion 16 a that protrudes radially inward from the inner wall surface of the first tubular member 16. Further, the valve body portion 44 is provided between the holding member 24 between the shaft portion 24a located on the rear side and the large-diameter portion 24b located on the front side, and is inclined so that the diameter increases toward the front. It is formed by the part 24c. The spring 46 (biasing member) includes a stepped portion 16c provided on the protruding portion 16a of the holding member 24 that is a member on the stationary portion 2 side, and a distal end surface 26a of the support shaft 26 that is a member on the movable portion 4 side. And a biasing force in the rearward direction is applied to the movable portion 4 via the support shaft 26.

  When the valve mechanism 40 is closed, the movable portion 4 is urged rearward by the spring 46 (biasing member) so that the valve body portion 44 comes into contact with the valve seat portion 42, and when the valve mechanism 40 is opened, the spring The movable body 4 moves forward against the urging force of 46 (the urging member) so that the valve body 44 is separated from the valve seat 42 forward.

That is, when the knock type applicator 1 is not knocked, the movable portion 4 is urged rearward by the spring 46 (biasing member), the valve body portion 44 comes into contact with the valve seat portion 42, and the valve mechanism 40 is closed. Therefore, the coating liquid container 6 and the coating liquid supply path 28 are not in communication. For this reason, when the valve mechanism 40 is closed, since the coating liquid is not supplied from the coating liquid storage section 6 to the coating unit 5 (the coating body 20 or the like) via the coating liquid supply path 28, dripping can be prevented.
When the knock type applicator 1 is in the knocked state, a force opposite to the biasing force of the spring 46 (biasing member) is applied to the knocking portion 8 to the movable portion 4, and the movable portion 4 moves forward to move the valve body. The part 44 moves away from the valve seat part 42 forward. By opening the valve mechanism 40 in this way, the coating liquid storage unit 6 and the coating liquid supply path 28 are in communication with each other, so that the coating unit 5 is connected from the coating liquid storage part 6 via the coating liquid supply path 28. A coating liquid can be supplied to (applying body 20 etc.).

  In this way, when the valve mechanism 40 is provided, the application liquid is applied via the coating liquid supply path 28 by switching the communication state between the coating liquid storage unit 6 and the coating liquid supply path 28 by the valve mechanism 40. When it is not necessary to supply the unit 5 (applying body 20 or the like), the coating liquid container 6 and the coating liquid supply path 28 can be maintained in a state where they do not communicate with each other. Thereby, the supply amount of the coating liquid to the coating unit 5 can be adjusted, and dripping of the coating liquid supplied to the coating unit 5 can be suppressed.

In addition, the stationary part 2 may further include a first rib provided so as to extend in the axial direction and protrude radially inward around the application body 20. For example, in the exemplary embodiment shown in FIGS. 1 to 4, a tip rib 52 is provided at the tip of the front shaft 14 as such a first rib.
By the above-mentioned first rib, the solidified product (aggregates of particles contained in the coating solution) is broken around the coated body 20, or the bubbles contained in the coating solution are crushed. It can be prevented from being discharged.

Moreover, the movable part 4 may further have a second rib provided so as to extend in the axial direction around the applying body 20 and protrude radially inward. For example, in the exemplary embodiment shown in FIGS. 1 to 4, a rib 54 provided on the second tubular member 22 is provided as such a second rib.
By the above-mentioned second rib, deformation such as kinking of the coated body 20 can be more effectively prevented.

  Hereinafter, the knock type applicator according to some embodiments will be described more specifically using examples.

In Test 1 and Test 2 shown below, the knock type applicator 1 shown in FIGS. 1 to 4 is used to change the viscosity of the coating liquid or the average particle diameter of the particles contained in the coating liquid, and at the time of knocking. The degree of discharge of the coating liquid onto the coated body 20 was confirmed.
However, the gap size between the second convex portion 32 in the radial direction of the knock-type applicator 1 used in Test 1 and Test 2 and the second groove 36 g _r is 0.30 mm, the barrel 3 the size _{g c} of the gap between the second convex portion 32 in the circumferential direction between the second groove 36 is 0.75 mm.

(Test 1)
In Test 1, for the coating liquids 1 to 8 in which the viscosity of the coating liquid was variously changed, the discharge condition and usability of the coating liquid were confirmed using the knock type applicator 1. Test conditions and test results are as shown in Table 1 below. A, B, and C in the “discharge state” column are respectively A: good (normally discharged), B: slightly good (slightly difficult to discharge or slightly dripping), C: not good (not discharged or not discharged) Difficult to drip or dripping). A and B in the column “usability” are respectively A: good (no particular problem), B: not good (coating liquid is insufficiently stretched at the time of application, the application liquid flows down or blurs, Etc.).

As can be seen from Table 1, in the coating liquid 1 having a viscosity of 5 mPa · s, dripping was confirmed in the discharged state, and flow-off from the coating object was confirmed as usability. Therefore, it can be said that a coating liquid having a viscosity of 5 mPa · s or less is not suitable for use in the knock type applicator 1.
Further, as can be seen from Table 1, in the coating liquid 8 having a viscosity of 300 mPa · s, the coating liquid was not ejected in the ejected state, and the usability of the coating liquid was insufficient in terms of usability. Therefore, it can be said that the coating liquid having a viscosity of 300 mPa · s or more is not suitable for use in the knock type applicator 1.

  Therefore, it can be said that coating liquid 2 to coating liquid 7 having a viscosity of 10 to 200 mPa · s are coating liquids suitable for use in knock type applicator 1. Moreover, the coating liquid 3 to the coating liquid 5 (the coating liquid having a viscosity of 15 mPa · s or more and 100 mPa · s or less) having good results in both the discharge state and the usability are particularly suitable for use in the knock type applicator 1. It can be said that it is a coating solution.

(Test 2)
In Test 2, for the coating liquids 9 to 16 each including tabular grains having different average particle diameters, the discharge condition and usability of the coating liquid were confirmed using the knock type applicator 1. The tabular grains are for imparting brightness to the coating solution. The test conditions and test results are as shown in Table 2 below. The average thickness of the tabular grains used in Test 2 was 1 to 2 μm. In addition, A, B, and C in the column of “ejection state” are respectively A: good (normally ejected), B: slightly good (small amount of ejected particles), and C: not good (not ejected or difficult to eject). Means. Further, A and B in the column of “usability” are respectively A: good (no particular problem), B: not good (brightness is insufficient (function cannot be sufficiently exhibited), or to an application target. In other words, the fixing state is poor.

As can be seen from Table 2, in terms of the discharge state, out of the coating liquid having an average particle diameter of 300 μm or more, the coating liquid 15 (average particle diameter: 300 μm) has a small amount of discharged particles, and the coating liquid 16 ( In the case of an average particle size: 500 μm), the coating liquid was not discharged. On the other hand, in the coating liquids 9 to 15 (average particle diameter: 5 to 250 μm) having an average particle diameter of less than 300 μm, the coating liquid and the particles were normally discharged. Therefore, when the average particle diameter (d _m ) is smaller than the size (g _r : 0.30 mm in Test 2) of the radial gap formed in the coating liquid supply path 28 (d _m <g _r ), a flat plate It was shown that the coating liquid containing particle-like particles can be smoothly supplied to the coating unit 5 (such as the coating body 20).

Further, as can be seen from Table 2, in terms of usability, the coating liquid 9 and the coating liquid 10 having an average particle diameter of 20 μm or less tend to have low brightness, and the coating liquid 14 having an average particle diameter of 250 μm or more. In -16, the result that the fixability to the application object of a coating liquid was unsatisfactory was obtained.
From the results of the above discharge state and usability, a flat plate having an average particle diameter of 20 to 300 μm in that the coating liquid is normally discharged and the function of the particles (function of imparting luminance) can be exhibited to some extent. It can be said that the coating liquids 10 to 15 containing the shaped particles are suitable for use in the knock type applicator 1. Moreover, the coating liquid 11 to the coating liquid 13 (coating liquid containing particles having an average particle diameter of 50 to 200 μm) having good results in both the discharge state and the usability are particularly suitable for use in the knock type applicator 1. It can be said that it is a coating solution.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned above, The form which added the deformation | transformation to embodiment mentioned above and the form which combined these forms suitably are included.

In this specification, an expression representing a relative or absolute arrangement such as “in a certain direction”, “along a certain direction”, “parallel”, “orthogonal”, “center”, “concentric” or “coaxial”. Represents not only such an arrangement strictly but also a state of relative displacement with tolerance or an angle or a distance to obtain the same function.
For example, an expression indicating that things such as “identical”, “equal”, and “homogeneous” are in an equal state not only represents an exactly equal state, but also has a tolerance or a difference that can provide the same function. It also represents the existing state.
In this specification, expressions representing shapes such as quadrangular shapes and cylindrical shapes not only represent shapes such as quadrangular shapes and cylindrical shapes in a strict geometric sense, but also within a range where the same effects can be obtained. In addition, a shape including an uneven portion or a chamfered portion is also expressed.
In this specification, the expression “comprising”, “including”, or “having” one constituent element is not an exclusive expression for excluding the existence of another constituent element.

DESCRIPTION OF SYMBOLS 1 Knock type applicator 2 Stationary part 3 Shaft cylinder 4 Movable part 4a Rear end part 5 Coating unit 6 Coating liquid storage part 7 Coating liquid 8 Knock part 9 Knock crown 10 Stretching body 12 Rear shaft 12a Front end surface 12b Annular projection part 12c Guide Part 13 Front end opening 14 Front shaft 14a Annular convex part 14b Rear end face 15 Coating liquid 16 First cylindrical member 16a Protruding part 16b Gutter part 16c Stepped part 18 Sleeve 20 Application body 22 Second cylindrical member 22a Stepped part 22b Tip end face 24 Holding member 24a Shaft portion 24b Large diameter portion 24c Inclined portion 26 Support shaft 26a Tip surface 27 Rotation restricting portion 28 Coating liquid supply path 30 First convex portion 30a Side surface 32 Second convex portion 32a Top portion 34 First groove 34a Side surface 36 First 2 groove 36a bottom part 40 valve mechanism 42 valve seat part 44 valve body part 46 spring 52 front end rib 52a rear end face 54 rib 56 annular passage 58 plate-like member 59 projection part 60 projection part 6 Stirring body O center point

Claims (15)

A stationary part including a shaft tube;
A movable part including an application unit and configured to be movable with respect to the stationary part along the axial direction of the axial cylinder in the axial cylinder;
A coating liquid storage unit that stores the coating liquid supplied to the coating unit;
The stationary portion includes a first convex portion that protrudes radially inward of the shaft cylinder,
The movable part is
A first groove extending along the axial direction to engage with the first convex portion and form a rotation restricting portion together with the first convex portion;
A second groove that extends along the axial direction and forms a coating liquid supply path capable of communicating with the coating liquid container;
Including
The width in the circumferential direction of the shaft cylinder of the second groove is larger than the width in the circumferential direction of the first groove,
The knock-type applicator characterized in that the movable portion is configured such that the rotation with respect to the stationary portion is restricted by the contact of the side surface of the first convex portion and the side surface of the first groove. .   2. The knock type according to claim 1, wherein the stationary portion further includes a second convex portion provided so as to protrude radially inward of the shaft cylinder so as to enter the second groove. Applicator. The width of the first groove in the circumferential direction is w _g1 , the width of the first protrusion in the circumferential direction is w _p1 , the width of the second groove in the circumferential direction is w _g2, and the width in the circumferential direction is The knock type applicator according to claim 2, wherein (w _g1 -w _p1 ) <(w _g2 -w _p2 ) is satisfied, where w _p2 is a width of the second convex portion. In the radial direction of the barrel, the size of the gap between the second groove and the second protrusion and g _r, in the circumferential direction of the barrel, and the second protrusion and the second groove The knock type applicator according to claim 2 or 3, wherein g _r <g _c is satisfied, where g _c is a size of a gap between the two. 5. The knock type applicator according to claim 4, wherein 2g _r ≦ g _c ≦ 5 g _r is satisfied. The coating liquid includes particles having an average particle diameter d _m,
Wherein between the bottom of the second groove and the top of the second convex portion, any one of claims 2 to 5, characterized in that the average gap larger than the particle diameter d _m is formed The knock type applicator according to 1.   The knock-type applicator according to claim 5, wherein the second protrusion has a top surface extending in the axial direction so as to face the bottom surface of the second groove. An annular passage is formed so as to surround the coating unit on the tip side of the first convex portion in the shaft cylinder,
The knock type applicator according to any one of claims 1 to 7, wherein the annular passage communicates with the coating liquid supply path.   The knock-type applicator according to any one of claims 1 to 8, wherein the coating liquid contains flat-shaped particles.   The knock type applicator according to claim 9, wherein an average particle diameter of the tabular grains is 20 µm or more and 300 µm or less.   The knock type applicator according to any one of claims 1 to 10, wherein the viscosity of the coating liquid is 10 mPa · s or more and 200 mPa · s or less.   The knock type applicator according to any one of claims 1 to 11, further comprising a valve mechanism capable of switching a communication state between the coating liquid container and the coating liquid supply path. The valve mechanism is
A biasing member for biasing the movable part backward;
A valve seat provided in the stationary part;
A valve body provided in the movable part;
Including
When the valve mechanism is closed, the movable portion is urged rearward by the urging member, and the valve body portion contacts the valve seat portion,
When the valve mechanism is opened, the movable portion moves forward against the urging force of the urging member so that the valve body portion is separated forward from the valve seat portion. The knock type applicator according to claim 12. A stationary part including a shaft tube;
A movable part including an application unit and configured to be movable with respect to the stationary part along the axial direction of the axial cylinder in the axial cylinder;
A coating liquid storage unit that stores the coating liquid supplied to the coating unit;
The movable part includes a flow path groove that extends along the axial direction and forms a coating liquid supply path that can communicate with the coating liquid storage part.
The stationary part includes a convex part provided so as to protrude inward in the radial direction of the shaft cylinder so as to enter the flow channel groove,
Gap between the in the radial direction of the barrel, the size of the gap between the flow path groove and the convex portion and g _r, in the circumferential direction of the barrel, the channel groove and the convex portion A knock type applicator characterized by satisfying g _r <g _c , where g _c is the size of. A stationary part including a shaft tube;
A movable part including an application unit and configured to be movable with respect to the stationary part along the axial direction of the axial cylinder in the axial cylinder;
A coating liquid storage unit that stores the coating liquid supplied to the coating unit;
The movable part includes a flow path groove that extends along the axial direction and forms a coating liquid supply path that can communicate with the coating liquid storage part.
The stationary part includes a convex part provided so as to protrude inward in the radial direction of the shaft cylinder so as to enter the flow channel groove,
The coating liquid includes particles having an average particle diameter d _m,
Between the bottom of the channel groove and the top portion of the convex portion is a knock type applicator, wherein the average gap larger than the particle diameter d _m is formed.

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