JP2000312854A - Liquid coater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sufficiently stirr the coating soln. in a coating soln. storage chamber by closing the coating soln. storage chamber certainly at a time of use and preventing the closing of the coating soln. storage chamber after the start of use. SOLUTION: The rear end connection part 53 of a joint member 50 is arranged on the front side of the seal ball 28 of a partition wall member 20 at a time of non-use and fitted in a connection hole 25 at a start time of use in a form pushing out the seal ball 28 to a coating soln. storage chamber 17. A rearwardly projected eccentric part 26 is formed to the rear surface of the partition wall member 20 at one place on the outer peripheral side with respect to the connection hole 25 and an eccentric recessed part 27 is formed thereto on the side opposite to the projected part 26. The eccentric projected part 26 and the eccentric recessed part 27 are formed so that the stirring ball 18 is made eccentric with respect to the connection hole 25 to penetrate in the eccentric recessed part 27 while the seal ball 28 is pushed out toward the outer periphery with respect to the connection hole 25 and the seal ball 28 penetrates in the eccentric recessed part 27 to be projected rearwardly from the eccentric projected part 26 and pushed out toward the outer periphery by the collision with the stirring ball 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid applicator for applying a coating liquid stored as it is in a coating liquid storage chamber through a coating body, and more particularly to a liquid cosmetic containing metal powder or inorganic pigment as a component. The present invention relates to a liquid applicator for applying a coating liquid containing a pigment component having a large specific gravity, such as a liquid.

[0002]

2. Description of the Related Art In a liquid applicator (an applicator with a valve) described in Japanese Utility Model Publication No. 1-165040, the front side of the liquid applicator is not used (during virgin time) so that the internal application liquid does not come into contact with the outside air. A seal ball (inner plug) is placed in the coating liquid discharge hole (opening) between the coating body and the coating liquid storage chamber (coating liquid chamber) on the rear side.
And the coating liquid discharge hole is closed by a seal ball. At the start of use, the application body is moved to the application liquid storage chamber side, the rear end of the application body is fitted into the application liquid discharge hole, and the seal ball is pushed out of the application liquid discharge hole into the application liquid storage chamber. , So as to open the application liquid ejection hole.

[0003] In the liquid applicator described in Japanese Utility Model Publication No. 1-16540, a stirring ball is movably accommodated in the coating liquid storage chamber to stir the coating liquid in the coating liquid storage chamber. . That is, liquid cosmetics and correction liquids contain many pigment components having a large specific gravity, such as metal powders and inorganic pigments, in order to provide a glossy feeling and increase the hiding power. When the coating liquid having a large pigment component (solid content) having a large specific gravity is stored as it is (without using an impregnating body), the solid content in the coating liquid precipitates and the concentration becomes uneven,
Since the color tone when the coating liquid is applied changes, it is necessary to stir with a stirring ball to redisperse the solid content.

In the case of a coating solution containing a large amount of a pigment component (solid content) having a large specific gravity, a viscosity improver is added to the coating solution to increase the viscosity of the coating solution to suppress sedimentation of solids.
Structural viscosity imparting agent is added to the coating liquid to make the coating liquid structurally viscous. (At the time of agitation such as stirring and use, the viscosity of the coating liquid is reduced to ensure fluidity, In some cases, the physical properties of the coating liquid are adjusted, for example, by increasing the viscosity of the coating liquid to suppress sedimentation of the solid content.

[0005]

Problems to be Solved by the Invention
In the liquid applicator described in Japanese Patent Application Laid-Open Publication No. H11-157, when the application body is turned downward at the time of use (after the start of use), the seal ball in the application liquid storage chamber moves to the application liquid discharge hole side, and again the seal ball May close the application liquid discharge hole. Therefore, it is necessary to move the application body to the application liquid storage chamber side many times after the start of use, and to push out the seal ball from the application liquid discharge hole into the application liquid storage chamber.

In the case of a coating solution containing a large amount of a pigment component (solid content) having a large specific gravity, the solid content may precipitate near the coating solution discharge port to form a strong precipitate (hard cake). If the seal ball with the coating liquid discharge hole closed is buried (encased) in a strong sediment, the seal ball and the sediment do not move stably, making it difficult to reopen the coating liquid discharge hole. Become. Since the seal ball is smaller than the stirring ball, it is easily buried in the sediment.

[0007] Further, it is difficult to suppress the sedimentation of solid content due to the physical properties (viscosity) of the coating solution when the solid content of the coating solution is extremely large, such as metal powder or titanium oxide. The addition of a viscosity improver or a structural viscosity imparting agent causes problems such as a decrease in coating performance such as fluidity.

In view of the above problems, the present invention reliably closes the coating liquid discharge port (connection hole) of the coating liquid storage chamber with a seal ball when not in use, and after starting use (after removing the seal ball). To prevent the coating liquid discharge port (coating liquid discharge hole) from being closed again by the seal ball.
An object of the present invention is to provide a liquid applicator capable of sufficiently stirring a coating liquid in a coating liquid storage chamber.

[0009]

According to the first aspect of the present invention, there is provided a liquid applicator in which a coating liquid is stored as it is and a stirring ball (18) having a relatively large outer shape and weight is movably accommodated. A main body shaft (10) having a liquid storage chamber (17), and a front and rear direction in which a seal ball (28) fixed to a front portion of the main body shaft (10) and having a relatively small outer shape and weight is fitted when not in use. A partition wall (partition member 20) having a penetrating connection hole (25); and a front shaft (3) mounted on the front side of the main body shaft (10) and supporting the application body (40) at the front.
0) and the rear end of the front shaft (30).
5) and a joint (joint member 50) having a coating solution discharge hole (56) penetrating in the front-rear direction, and a rear end connection of the joint (joint member 50). The part (53) is arranged in front of the seal ball (28) of the partition part (partition member 20) when not in use, and pushes the seal ball (28) into the application liquid storage chamber (17) at the start of use to form a connection hole. (25), and is inserted into the partition (partition member 2).
0) On the rear surface side, an eccentric convex portion (26) protruding rearward is provided at one position on the outer peripheral side with respect to the connection hole (25) so as to form an eccentric concave portion (27) on the opposite side. The eccentric convex portion (26) and the eccentric concave portion (27) are provided with a stirring ball (18).
Is eccentric with respect to the connection hole (25) and the eccentric recess (27)
The stirring ball (18) can enter the eccentric recess (2).
7), the seal ball (28) is connected to the connection hole (2).
5) When the seal ball (28) is pushed out to the outer peripheral side and enters the eccentric concave portion (27), the seal ball (28) protrudes rearward from the eccentric convex portion (26) and the stirring ball (18). ) And is pushed out to the outer peripheral side by a collision.

According to the liquid applicator of the present invention, when not in use, the seal ball (28) having a relatively small connection hole (25) of the partition (partition member 20) fixed to the main body shaft (10). ), The liquid storage chamber (1
7) It is possible to suitably prevent the coating liquid in the container from coming into contact with the outside air, and at the start of use, the joint (joint member 50) fixed to the front shaft (30) is moved to the rear side (the main body shaft 10 side). To the rear end connecting portion (53) of the joint (joint member 50).
As a result, the seal ball (28) is pushed out of the connection hole (25) into the application liquid storage chamber (17), so that the seal ball (28) can be easily removed. A relatively large stirring ball (18) is accommodated in the coating liquid storage chamber (17), and a relatively small eccentric convex portion (26) and a relatively large eccentric concave portion are provided on the rear side of the partition wall (partition member 20). After the start of use, the coating liquid in the coating liquid storage chamber (17) including the vicinity (the eccentric concave portion 27) of the coating liquid discharge hole (56) of the joint (joint member 50) is formed. The liquid can be sufficiently stirred by the stirring ball (18), and the sealing liquid (28) can be prevented from closing the application liquid discharge hole (56). Therefore, even with a coating liquid containing a pigment component (solid content) having a large specific gravity, the precipitated solid content can be suitably redispersed by stirring, and a change in color tone due to uneven density can be prevented. In addition, it is possible to avoid deterioration in coating performance such as a decrease in fluidity due to the addition of a viscosity improver or a structural viscosity imparting agent.

In the liquid applicator according to the second aspect, the eccentric convex part (26) of the partition part (partition member 20) is
The inner peripheral side has a narrow cross-sectional shape so that the seal ball (28) can easily move to the outer peripheral side when the seal ball (28) enters the eccentric concave portion (27).

According to the liquid applicator of the present invention, since the inner peripheral side of the eccentric convex portion (26) is narrow, the stirring ball (1
8) When the seal ball (28) is pushed to the outer peripheral side by the collision with the outer peripheral side, the eccentric convex portion (26) does not hinder and the coating liquid discharge hole (56) is closed by the seal ball (28). It can be prevented more suitably.

In the liquid applicator according to the third aspect, a stopper (70) is detachably mounted between the main body shaft (10) and the front shaft (30). When not in use, the rear end connecting portion (53) of the joint portion (joint member 50) is connected to the seal ball (2) of the partition portion (partition member 20).
8) A configuration is provided in which an interval holding portion (72) having a predetermined front-rear width is provided so as to be held at the front side of 8).

According to the liquid applicator of the third aspect, when not in use, the stopper (70) is mounted between the main body shaft (10) and the front shaft (30), so that the front shaft (30) is used. The movement of the joint portion (joint member 50) fixed to the rear side is restricted, and the seal ball (28) is inadvertently connected to the connection hole (25).
Can be prevented from dropping off. At the start of use, by removing the stopper (70) from between the main body shaft (10) and the front shaft (30), the seal ball (28) is connected by the rear end connection portion (53) of the joint (joint member 50). ) Can be extruded from the connection hole (25).

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view (a) when a liquid applicator according to an embodiment of the present invention is not used, and a vertical cross-sectional view (b) after starting use and when not in use.
FIG. 2 is an exploded view of the front shaft portion in FIG. FIG. 3 is a longitudinal sectional view of the front shaft portion in FIG. 1 when it is not used, and FIG. 4 is a longitudinal cross section of the front shaft portion in FIG. 1 during normal use (a) and during transient use (b). FIG. And FIG.
6, 7, 8 are the first examples of the eccentric convex portions of the partition member in FIG.
It is the side view (a) and back view (b) of a 2nd example, a 3rd example, and a 4th example.

As shown in FIG. 1, the liquid applicator according to the embodiment of the present invention is provided with a cylindrical body shaft 10 which is long in the front-rear direction (axial direction) and has open front and rear ends. On the inner peripheral side of the intermediate portion of the main body shaft 10, a coating liquid storage chamber 17 for storing a coating liquid such as a liquid cosmetic or a correction liquid as it is (without absorbing it into an impregnated body such as a sponge) is formed. A spherical stirring ball 18 is provided in the coating solution storage chamber 17.
The stirring ball 18 is provided so as to be able to sufficiently stir the coating liquid.
8, the outer diameter and the weight are larger.

As shown in FIG. 2, a front end portion (tip portion) of the main body shaft 10 is provided with a front end cylindrical portion 12 having a diameter smaller than that of the rear main body portion 11. A step-like portion (shoulder-like portion) is formed between the cylindrical portion 12. On the outer peripheral surface of the front end cylindrical portion 12, a ring-shaped projection-shaped front temporary locking portion 13 and a ring-shaped projection-shaped rear locking portion 1 are provided.
4 are provided in front and rear at an interval slightly larger than the length of a connection hole 25 of the partition member 20 described later.

As shown in FIG. 1, a partition member 20 for closing the front side of the coating solution storage chamber 17 is fixed to the front end of the main body shaft 10 via a front end cylindrical portion 12.
A front shaft 30 is mounted on the front side of the main body shaft 10 via the front end cylindrical portion 12. An application body 40 for applying a coating liquid is supported at the front of the front shaft 30.
A joint member 50 that connects the application liquid storage chamber 17 and the application body 40 is fixed to the rear portion. On the front side of the front shaft 30, a cap 60 for covering the application body 40 is detachably mounted via a rear cylindrical portion 35 described later. Further, when the liquid applicator is not used at the time of shipping, display or the like, a stopper 70 is mounted between the front shaft 30 and the main body shaft 10 via the front end cylindrical portion 12.

As shown in FIG. 2, the partition member 20 is formed in a cylindrical shape whose inner diameter is gradually reduced from the front side to the rear side in the front-rear direction. A stepped (shoulder-shaped) seal portion 21 is provided at the (reduced diameter portion). A collar-shaped locked portion 23 is provided on the outer peripheral side of the front end of the partition member 20, and a partition 24 is provided on the inner peripheral side of the rear end of the partition member 20. Is provided with a connection hole 25 having a circular cross-sectional shape penetrating in the front-rear direction. Then, as shown in FIG. 3, the partition member 20 connects the locked portion 23 to the front end cylindrical portion 1.
2 and is fixed to the front end of the main body shaft 10 by fitting the rear portion to the front inner peripheral side of the front end cylindrical portion 12.

Then, when the liquid applicator is not used,
The connection hole 25 of the partition member 20 has a spherical seal ball 2
8, the connection hole 25 is closed by a seal ball 28. As shown in FIG. 4, at the start of use of the liquid applicator, the seal ball 28 is moved from the connection hole 25 to the rear side of the partition wall portion 24 (coating). To the liquid storage room 17 side)
The connection hole 25 is opened. The seal ball 28 is compared with the stirring ball 18 in order to ensure that the connection hole 25 is closed when not in use and to facilitate the extrusion from the connection hole 25 at the start of use (reduce the pushing force). As a result, the outer diameter and weight are small, and the boundary length (contact length) between the seal ball 28 and the connection hole 25 is small.

On the rear surface side of the partition wall portion 24 (on the side of the coating liquid storage chamber 17), one portion on the outer peripheral side with respect to the connection hole 25 is provided.
An eccentric convex portion 26 protruding to the rear side is provided, so that the rear side of the partition wall portion 24 and the inner peripheral side of the front end cylindrical portion 12 are opposite to the eccentric convex portion 26 with respect to the connection hole 25. , An eccentric recess 27 is formed. Further, the eccentric convex portion 26 and the eccentric concave portion 27 are formed in the connecting hole 25 by the stirring ball 18 alone.
If it is eccentric with respect to the eccentric recess 27, the stirring ball 18 and the seal ball 28 (after the start of use of the liquid applicator) cannot enter the eccentric recess 27 at the same time, and When the seal ball 28 enters the eccentric recess 27, the seal ball 28 is formed in a size and shape such that the seal ball 28 projects rearward from the eccentric protrusion 26.

The eccentric convex portion 26 is formed on the inner peripheral side (the connection hole 2).
5) is formed in a narrow cross-sectional shape. For example, as shown in FIGS. 5 and 6, it is formed in a column shape with a fan-shaped (substantially triangular or substantially trapezoidal) cross-sectional shape, or as shown in FIGS. As shown, it is formed in a column shape having a circular cross section. In addition, as shown in FIG. 8, the rear end of the eccentric convex portion 26 may be formed in a hemispherical shape. In addition, the eccentric convex portion 26 is
And so on (injection molding).
Production costs can be reduced.

As shown in FIG. 2, the front shaft 30 has a front cylindrical portion 32 having a tapered cylindrical shape with a reduced diameter on the front side, a rear cylindrical portion 35 having a parallel cylindrical shape, and an annular shape having a larger diameter than the rear cylindrical portion 35. It is formed in a cylindrical shape with a rear end opened with a rear end annular portion 37, and an application body insertion hole 31 penetrating in the front-rear direction is provided at the front end (tip) of the front shaft 30. A step-like portion (shoulder-like portion) is formed between the rear cylindrical portion 35 and the rear end annular portion 37, and an annular step-like portion is formed on the inner peripheral side of the intermediate portion of the front cylindrical portion 32. Is provided with an application body locking portion 33 and a joint member fixing portion 34, and a rear cylindrical portion 35
An annular projection-shaped locked portion 36 is provided on the inner peripheral side of the rear portion.

The application body 40 has a column-shaped coating section 42 which is long in the front-rear direction and has a sharp front end. The coating section 42 is formed of a fiber bundle, a porous elastic material or the like. The rear end of the application body 40 has a flange-shaped locked portion 4.
4 is provided, and a pipe fitting hole 46 that is oriented in the front-rear direction is provided in the center of the rear part of the application body 40. Then, as shown in FIGS.
The front part of the application part is projected forward from the application body insertion hole 31, the rear part of the application part 42 is inserted into the application body insertion hole 31, and the locked part 44 is engaged with the application body locking part 33, Tip axis 30
The front portion of a coating liquid discharge pipe 58 that is long in the front-rear direction is fitted into the pipe fitting hole 46.

As shown in FIG. 2, the joint member 50 is formed in a substantially cylindrical shape that is long in the front-rear direction and has an outer diameter gradually reduced from the front side to the rear side. A tapered seal portion 51 is provided at the (reduced diameter portion), and a rear end connection portion 53 corresponding to the connection hole 25 of the partition wall member 20 is provided at the rear end of the joint member 50. The flange-shaped fixed portion 5 is provided on the outer peripheral side of the front end of the joint member 50.
4 is provided, and in the center of the joint member 50, a coating liquid discharge hole (pipe fitting hole) 56 penetrating in the front-rear direction is provided. Then, as shown in FIG.
Is to fit the fixed portion 54 to the joint member fixing portion 34,
The rear part of the front shaft 30 is fixed to the inner periphery of the rear part, and the rear part of the application liquid discharge pipe 58 is fitted into the application liquid discharge hole 56.

As shown in FIG. 3, when the liquid applicator is not used, the front shaft 30 sandwiches a stopper 70 (described later) between the rear end annular portion 37 and the main body 11 of the main shaft 10, The rear cylindrical portion 35 is fitted around the outer peripheral side of the front end cylindrical portion 12 in such a manner that the locked portion 36 and the front temporary locking portion 13 are engaged with each other, and mounted on the front side of the main body shaft 10. 30
The rear end connecting portion 53 of the joint member 50 fixed to the seal member 28 is disposed immediately before the seal ball 28 fitted into the connection hole 25 of the partition wall member 20. Then, as shown in FIG. 4, after the start of use of the liquid applicator, the front shaft 30 brings the rear annular portion 37 into contact with the main body 11 of the main shaft 10, and the locked portion 36 and the rear side The rear cylindrical portion 3 is engaged with the locking portion 14.
5 is fitted to the outer peripheral side of the front end cylindrical portion 12, and the main body shaft 10
Of the joint member 50.
3 is inserted into the connection hole 25 of the partition member 20 in a manner that the seal ball 28 is pushed out into the application liquid storage chamber 17, and the joint member 5
The seal portion 51 on the outer peripheral side of No. 0 is in contact with the seal portion 21 on the inner peripheral side of the partition wall member 20.

Further, as shown in FIG.
Is composed of an interval holding portion 72 having a substantially annular (C-shaped) cross section having a notch, and a knob 74 connected to the opposite side of the notch of the interval holding portion 72.
The thickness (front-back width) in the front-back direction of 2 is slightly larger than the length in the front-back direction of the connection hole 25 of the partition member 20. Then, as shown in FIG. 3, when the liquid applicator is not used, the stopper 70 is detachably attached to the front part of the main body shaft 10 by fitting the interval holding part 72 to the rear outer peripheral side of the front end cylindrical part 12. It is mounted and, as shown in FIG. 4, is detached at the start of use of the liquid applicator.

Incidentally, as shown in FIG.
Is composed of an outer cap 62 and an inner cap 64. The outer cap 62 is formed in a cylindrical cup shape having a relatively large diameter (same as the main body 11 of the main body shaft 10) which is long in the front-rear direction and has an open rear end. The inner cap 64 is formed in a cup shape having a relatively small diameter with an open rear end. The inner cap 64 is inserted into the inner peripheral side of the outer cap 62 and urged rearward by the coil spring 66. The cap 60 has a rear end portion of the outer cap 62 and the rear cylindrical portion 3.
5, is detachably mounted on the front side of the front shaft 30. The rear portion of the inner cap 64 elastically adheres to the outer peripheral surface of the front cylindrical portion 32 of the front shaft 30, The application body 40 is accommodated in the closed inner cap 64.

In the liquid applicator thus configured, the connection hole 25 of the partition member 20 is closed by the seal ball 28 when not in use, as shown in FIG.
The coating liquid in the coating liquid storage chamber 17 can be prevented from coming into contact with the outside air. At this time, since the seal ball 28 (and the connection hole 25) is relatively small, the connection hole 25 can be reliably closed by the seal ball 28. Also,
When the liquid applicator is not used, the space holding portion 72 of the stopper 70 is mounted between the main body shaft 10 and the front shaft 30, so that the front shaft 30 moves rearward (to the main body shaft 10). The joint member 50 is inadvertently restrained.
Is inserted into the connection hole 25 of the partition member 20 and the seal ball 2
8 can be prevented from being pushed out.

When the liquid applicator is used (at the beginning of use), when the applicator 40 is turned downward, the seal ball 28 and the stirring ball 18 in the application liquid storage chamber 17 are lowered (the partition wall) by their own weight. 4 to the rear side of the member 20).
As shown in (a), the stirring ball 18 eccentrically enters the eccentric recess 27 with respect to the connection hole 25 or the application liquid discharge hole 56, and the heavy stirring ball 18 enters the eccentric recess 27, Since the seal ball 28 having a small weight is pushed out to the outer peripheral side with respect to the connection hole 25 or the coating liquid discharge hole 56, it is possible to prevent the coating liquid discharge hole 56 from being closed by the stirring ball 18 or the seal ball 28. .

As shown in FIG. 4B, the seal ball 28 may temporarily enter the eccentric concave portion 27. In this case, the seal ball 28 is located above the eccentric convex portion 26 (on the rear side). ), The seal ball 18 is pushed outward by the collision with the stirring ball 18. In addition, since the eccentric convex portion 26 is formed narrow on the inner peripheral side,
When the seal ball 18 is pushed out to the outer peripheral side, the eccentric convex portion 26 does not interfere, and the contact area between the eccentric convex portion 26 and the seal ball 28 becomes small (because it becomes a point contact). Are eccentric convex portions 26 through the coating liquid.
Can be prevented.

The stirring ball 18 has a relatively large outer diameter and weight and can be moved to the vicinity of the rear surface of the partition member 20 by the relatively large eccentric recess 27, so that the coating liquid in the coating liquid storage chamber 17 can be moved. It can be sufficiently stirred. Therefore, even with a coating liquid containing a pigment component (solid content) having a large specific gravity, the precipitated solid content can be suitably redispersed by stirring, and a change in color tone due to uneven density can be prevented. In addition, it is possible to avoid deterioration in coating performance such as a decrease in fluidity due to the addition of a viscosity improver or a structural viscosity imparting agent. If a plurality of convex portions are provided on the rear surface side of the partition member 20, the concave portion between the convex portions becomes small, and the stirring ball 18 cannot enter the small concave portion. It becomes difficult to sufficiently stir the liquid.

As shown in FIG. 1, a coating liquid storage chamber 17 is provided at the rear of the main shaft 10 (on the rear side of the coating liquid storage chamber 17).
Piston 8 for pushing out the application liquid of the above to the front side (application body 40 side)
4 and the like are mounted. That is, a female screw member 82 having a female screw hole penetrating in the front-rear direction is fixed to the rear inner peripheral side of the main body shaft 10, and the female screw hole of the female screw member 82 has a screw extending in the front-rear direction. A shaft (male screw member) 83 is screwed so as to move in the front-rear direction (axial direction) when rotated in the circumferential direction.
Has a front end projecting forward from the female screw member 82. A piston 84 is mounted on the front end of the screw shaft 83, and the piston 84 moves integrally with the screw shaft 83 in the front-rear direction and slides in the application liquid storage chamber 17. .

On the outer peripheral side of the screw shaft 83 and on the rear side of the female screw member 82, a cylindrical rotary member 86 having a front end and a rear end opened is mounted.
3, and does not restrict the movement of the screw shaft 83 in the front-rear direction. Then, the rotating member 86
On the outer peripheral side of the rear end, a cylindrical knob member 8 having an open front end is provided.
5 is fixed, and the knob member 85 protrudes rearward from the main body shaft 10. When the user rotates the knob member 85 with fingers, the piston 8 is rotated via the rotating member 86 and the screw shaft 83.
4 moves in the front-back direction.

A flange-shaped ratchet portion (ratchet portion) 87 is provided on the outer peripheral side of the front end of the rotating member 86. On the rear surface of the ratchet wheel portion 87, a large number of claws are provided at a predetermined pitch in the circumferential direction. It is provided in. Further, a cylindrical reverse rotation preventing member 88 having an open front end and a rear end is attached to the front outer peripheral side of the rotating member 86 and the rear side of the ratchet wheel portion 87, and the front end face of the reverse rotation preventing member 88 is provided. A number of claws are provided at a predetermined pitch in the circumferential direction corresponding to the claws of the ratchet wheel portion 87 of the rotating member 86. The reverse rotation preventing member 88 is provided with a coil spring 89.
The elastic member is elastically pressed by the ratchet wheel portion 87 of the rotating member 86, and the pawl on the front end face of the reverse rotation preventing member 88 and the rotating member 86
Is disengaged from the claw on the rear surface of the ratchet wheel portion 87, the rotation member 86 (and the screw shaft 83) is restrained so as to be able to rotate in only one direction, and the piston 84 moves to the front side but to the rear side. It does not move to.

[0036]

According to the liquid applicator according to the first aspect,
When not in use, the connection hole of the partition wall portion fixed to the main body shaft is closed by a relatively small seal ball, so that the coating liquid in the liquid storage chamber can be suitably prevented from coming into contact with the outside air. At the start, the joint part fixed to the front shaft is moved to the rear side (body shaft side), and the seal ball is pushed out from the connection hole by the rear end connection part of the joint part into the application liquid storage chamber, so that the seal ball is removed. It can be easily eliminated. A relatively large stirring ball is accommodated in the coating liquid storage chamber, and a relatively small eccentric convex portion and a relatively large eccentric concave portion are formed on the rear surface side of the partition wall. The coating liquid in the coating liquid storage chamber including the vicinity of the coating liquid discharge hole (eccentric concave portion) can be sufficiently stirred by the stirring ball, and the coating liquid discharge hole is prevented from being closed by the seal ball. Can be. Therefore, even with a coating liquid containing a pigment component (solid content) having a large specific gravity, the precipitated solid content can be suitably redispersed by stirring, and a change in color tone due to uneven density can be prevented. In addition, it is possible to avoid deterioration in coating performance such as a decrease in fluidity due to the addition of a viscosity improver or a structural viscosity imparting agent.

Further, according to the liquid applicator of the present invention, since the inner peripheral side of the eccentric convex portion is narrow, the eccentric convex portion hinders when the seal ball is pushed to the outer peripheral side by collision with the stirring ball. In addition, it is possible to more suitably prevent the application liquid discharge hole from being closed by the seal ball.

According to the liquid applicator according to the third aspect, when not in use, the stopper is mounted between the main body shaft and the front shaft, so that the joint is fixed to the front shaft. Of the seal ball can be prevented from being accidentally dropped from the connection hole. At the start of use, by removing the stopper from between the main body shaft and the front shaft, the seal ball can be pushed out of the connection hole by the rear end connection portion of the joint portion.

[Brief description of the drawings]

FIG. 1 is a side view (a) when a liquid applicator according to an embodiment of the present invention is not used, and a vertical cross-sectional view (b) after starting use and when not in use.

FIG. 2 is an exploded view of a front shaft portion in FIG.

FIG. 3 is a longitudinal sectional view of the tip shaft portion in FIG. 1 when not used.

4 is a longitudinal sectional view of the front shaft portion in FIG. 1 during normal use (a) and during use transition (b).

FIGS. 5A and 5B are a side view and a rear view of a first example of the eccentric convex portion of the partition member in FIG.

FIG. 6 is a side view (a) and a rear view (b) of a second example of the eccentric convex portion of the partition member in FIG.

FIG. 7 is a side view (a) and a rear view (b) of a third example of the eccentric convex portion of the partition member in FIG.

FIG. 8 is a side view (a) and a rear view (b) of a fourth example of the eccentric convex portion of the partition member in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Main body axis 11 Main body part 12 Front end cylindrical part 13 Front temporary locking part 14 Rear locking part 17 Coating liquid storage chamber 18 Stirring ball 20 Partition member 21 Seal part 23 Locked part 24 Partition part 25 Connection hole 26 Eccentric convex Part 27 Eccentric concave part 28 Seal ball 30 Front shaft 31 Coating body insertion hole 32 Front cylindrical part 33 Coating body locking part 34 Joint member fixing part 35 Rear cylindrical part 36 Locked part 37 Rear end annular part 40 Coating body 42 Coating Part 44 Locked part 46 Pipe fitting hole 50 Joint member 51 Seal part 53 Rear end connection part 54 Fixed part 56 Coating liquid discharge hole 58 Coating liquid discharge pipe 60 Cap 62 Outer cap 64 Inner cap 66 Coil spring 70 Stopper 72 Stopper spacing Part 74 Picking part 80 Coating liquid extruding mechanism 82 Female screw member 83 Screw shaft 84 Piston 85 Picking member 86 Rotating member 87 Claw wheel part 88 Reverse rotation prevention member 89 Coil spring

Continued on the front page F term (reference) 2C350 GA04 GA06 HA15 HC03 HC04 HC05 KA10 KC02 KD02 KD09 NA10 NA11 NA12 4F042 FA29 FA30 FA36

Claims (3)

[Claims] 1. A main body shaft having a coating liquid storage chamber accommodating a stirring ball having a relatively large outer shape and a weight, wherein the main body shaft stores a coating liquid as it is, and is fixed to a front portion of the main body shaft. A partition having a connection hole penetrating in the front-rear direction in which a seal ball having a very small outer shape and weight is fitted when not in use; a front shaft mounted on the front side of the main body shaft and supporting an application body at the front, A rear end connection portion fixed to a rear portion of the front shaft and a joint portion having a coating liquid discharge hole penetrating in the front-rear direction corresponding to the connection hole; and the rear end connection portion of the joint portion is not provided. At the time of use, it is arranged on the front side of the seal ball of the partition portion, and at the start of use, is fitted into the connection hole so as to push the seal ball into the application liquid storage chamber. Outer peripheral side 1
The eccentric convex portion projecting to the rear side is provided in the form of forming an eccentric concave portion on the opposite side, and the eccentric convex portion and the eccentric concave portion are provided when the stirring ball is eccentric with respect to the connection hole. When the stirring ball can enter the eccentric recess and the stirring ball can enter the eccentric recess, the seal ball is pushed to the outer peripheral side with respect to the connection hole, and when the seal ball enters the eccentric recess, the seal ball is A liquid applicator formed so as to protrude rearward from the eccentric convex portion and to be pushed out to the outer peripheral side by collision with the stirring ball. 2. The eccentric convex portion of the partition portion has a cross-sectional shape with a narrow inner peripheral side so that the seal ball can easily move to the outer peripheral side when the seal ball enters the eccentric concave portion. The liquid applicator according to claim 1 formed. 3. A stopper is detachably mounted between the main body shaft and the front shaft, and the rear end connection portion of the joint portion is attached to the stopper when the seal member is not used. The liquid applicator according to claim 1, further comprising a space holding portion having a predetermined front-rear width so as to be held on a front side of the ball.