JP6764773B2 - Applying tool - Google Patents

Description

The present invention relates to a coating tool.

Conventionally, for example, as shown in Patent Document 1 below, a climaxed tubular attachment is attached to the mouth of a container body in which the contents are housed, and a communication hole is formed in the top wall to communicate with the inside of the container body. A member, a surrounding cylinder arranged on the mounting member and surrounding the communication hole from the outside in the radial direction, and a tubular coating member arranged inside the surrounding cylinder and applying the contents to the portion to be coated. The coating tool to be provided is known.

Japanese Unexamined Patent Publication No. 2014-28634

However, in the conventional coating tool, there is room for improvement in firmly fixing the coating member in the surrounding cylinder.

Therefore, the present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a coating tool capable of firmly fixing a coating member in a surrounding cylinder.

In order to solve the above problems, the applicator according to the present invention is attached to the mouth of the container body in which the contents are housed, and a communication hole is formed in the top wall portion to communicate with the inside of the container body. A tubular mounting member, a surrounding cylinder that is arranged on the mounting member and surrounds the communication hole from the outside in the radial direction, and a cylinder that is arranged inside the surrounding cylinder and applies the contents to the portion to be coated. A coating tool including a shape-shaped coating member, the inner holding portion supporting the inner peripheral side of the coating member, the inner surface supporting the outer peripheral side of the coating member, and the outer surface being the inner circumference of the surrounding cylinder. A holding member having an outer holding portion supported on a surface is provided, and the inner holding portion and the outer holding portion are formed with a locking protrusion that protrudes toward the coating member side. It is a feature.

According to the present invention, the inner holding portion supports the inner peripheral side of the coating member, and the outer holding portion supports the outer peripheral side of the coating member. At this time, since the locking protrusions formed on the inner holding portion and the outer holding portion each project toward the coating member side, it is possible to restrict the coating member from moving with respect to the holding member. Therefore, the coating member can be firmly fixed between the inner holding portion and the outer holding portion. Further, since the outer surface of the outer holding portion is supported by the inner peripheral surface of the surrounding cylinder, it is possible to prevent the outer holding portion from being deformed in the direction away from the coating member.
From the above, the coating member can be firmly fixed in the surrounding cylinder.

Further, the outer holding portion may be arranged so as to be separated from the outer peripheral side of the coating member in the radial direction.
In this case, with the outer holding portion retracted to the outside in the radial direction, the inner holding portion can support the inner peripheral side of the coating member, and the coating member can be easily attached to the holding member. Can be done. Then, the outer holding portion can be moved closer to the outer peripheral side of the coating member in the radial direction, and the coating member can be firmly held by the holding member.

Further, a pouring cylinder may be provided in which the inside communicates with the communication hole and the inner holding portion is supported from the inside.
In this case, since the inner holding portion is supported from the inside by the pouring cylinder, it is possible to suppress the inner holding portion from being deformed in the direction away from the coating member, and the coating member can be more firmly surrounded by the surrounding cylinder. Can be fixed inside.

Further, the surrounding cylinder may be detachably arranged on the mounting member, and the dispensing cylinder may be formed integrally with the surrounding cylinder.
In this case, since the pouring cylinder is integrally formed with the surrounding cylinder, for example, when the surrounding cylinder is removed from the mounting member together with the holding member and the coating member after the contents are used up and replaced, the outer holding is performed. It is possible to support the member by the surrounding cylinder and maintain the state in which the inner holding member is supported by the pouring cylinder, and the coated member can be firmly fixed in the surrounding cylinder even at the time of replacement or the like. ..

According to the present invention, the coating member can be firmly fixed in the surrounding cylinder.

It is a vertical cross-sectional view which shows the state which attached the coating tool which concerns on 1st Embodiment of this invention to a container body. It is a top view which shows the state before being arranged in the surrounding cylinder of the holding member in the coating tool shown in FIG. It is a vertical cross-sectional view which shows the state which the coating member in the coating tool shown in FIG. 1 is assembled to a holding member. FIG. 3 is a vertical cross-sectional view showing a state in which a holding member and a coating member in the coating tool shown in FIG. 1 are assembled to a surrounding cylinder. It is a vertical sectional view which shows the state which attached the coating tool which concerns on 2nd Embodiment of this invention to a container body. FIG. 5 is a top view showing a state of the holding member in the coating tool shown in FIG. 5 before being arranged in the surrounding cylinder. FIG. 5 is a vertical cross-sectional view showing a state in which the coating member of the coating tool shown in FIG. 5 is assembled to the holding member. FIG. 5 is a vertical cross-sectional view showing a state in which a holding member and a coating member in the coating tool shown in FIG. 5 are assembled to a surrounding cylinder. It is a vertical sectional view which shows the state which attached the coating tool which concerns on 3rd Embodiment of this invention to a container body. 9 is a top view showing a state of the holding member in the coating tool shown in FIG. 9 before being arranged in the surrounding cylinder. 9 is a vertical cross-sectional view showing a state in which the coating member of the coating tool shown in FIG. 9 is assembled to the holding member. 9 is a vertical cross-sectional view showing a state in which a holding member and a coating member in the coating tool shown in FIG. 9 are assembled to a surrounding cylinder. It is a vertical cross-sectional view which shows the state which attached the coating tool which concerns on 4th Embodiment of this invention to a container body.

(First Embodiment)
Hereinafter, the coating tool 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4. In each drawing used in the following description, the scale is appropriately changed in order to make each member a recognizable size.

As shown in FIG. 1, the applicator 1 is attached to the mouth portion 2A of the container body 2 in which the contents are housed, and the top wall portion 11 is formed with a communication hole 12 communicating with the inside of the container body 2. A tubular mounting member 10 and a surrounding cylinder 20 arranged in the mounting member 10 and surrounding the communication hole 12 and a tubular coating arranged inside the surrounding cylinder 20 to apply the contents to the portion to be coated. A member 50 and a member 50 are provided. The contents are not particularly limited, and examples thereof include cosmetics such as liquid foundations, chemicals, and detergents.

The container body 2 is formed in a bottomed tubular shape. The central axes of the container body 2, the mounting member 10, the surrounding cylinder 20, and the coating member 50 are arranged on a common axis. In the following description, this common axis is referred to as the central axis O1, the side of the surrounding cylinder 20 along the central axis O1 is referred to as the upper side, and the bottom side of the container body 2 is referred to as the lower side. Further, the direction along the central axis O1 is referred to as an axial direction, the direction orthogonal to the central axis O1 in a plan view from the axial direction is referred to as a radial direction, and the direction orbiting around the central axis O1 is referred to as a circumferential direction.

The container body 2 is formed by blow molding, and is, for example, a laminated peelable container (derami bottle) in which the inner container 4 is detachably laminated on the inner surface of the outer container 3.
The container body 2 may be formed by forming a laminated parison that is double (inside and outside) combined by, for example, extrusion molding, and extruding and blow molding the laminated parison. Further, the container body 2 is formed by forming a preform for the outer container 3 and a preform for the inner container 4 by injection molding or the like, combining these in a double manner (inside and outside), and then biaxially stretching blow molding. It may be formed.
Further, the preform for the outer container 3 is first biaxially stretched and blow-molded to form the outer container 3, then the preform for the inner container 4 is arranged inside the outer container 3, and then for the inner container 4. The container body 2 may be formed by biaxially stretching blow molding the preform of.

The material of the outer container 3 and the inner container 4 is a synthetic resin material, and they may be the same material or different materials as long as they are a peelable combination. Examples of the synthetic resin material include PET (polyethylene terephthalate), PP (polypropylene), PE (polyethylene), nylon (polyamide), EVOH (ethylene-vinyl alcohol copolymer) and the like. From these synthetic resin materials, the outer container 3 and the inner container 4 are formed in a peelable combination.

The container body 2 is formed in a bottomed tubular shape in which the mouth portion 2A, the shoulder portion, the body portion, and the bottom portion are continuously arranged in this order from the upper side to the lower side. The shoulder, body, and bottom are not shown in the drawings.
The outer container 3 can be squeeze-deformed (elastically deformed), and the inner container 4 is deflated and deformed as the contents decrease. Therefore, at least the portion of the outer container 3 located on the body portion is elastically deformable toward the inside in the radial direction.

The mouth portion 2A of the container body 2 is formed by laminating the outer container 3 and the inner container 4.
In the illustrated example, the mouth portion 2A of the container body 2 extends upward from the upper end portion of the shoulder portion and the lower cylinder portion 2C, and extends upward from the upper end portion of the lower cylinder portion 2C. It is formed in a two-stage tubular shape having an upper cylinder portion 2D formed having an outer diameter and an inner diameter smaller than those of 2C. An annular protrusion 2b that protrudes outward in the radial direction is formed on the outer peripheral surface of the portion of the upper cylinder portion 2D that constitutes the outer container 3.

An intake hole 81 is formed in the mouth portion 2A of the container body 2. The intake hole 81 is formed in a portion of the upper cylinder portion 2D that constitutes the outer container 3, and introduces air (outside air) between the outer container 3 and the inner container 4 via an air introduction hole 83 described later. Let me.
Further, a plurality of air grooves 82 extending in the axial direction are formed on the outer peripheral surface of the portion of the upper cylinder portion 2D that constitutes the outer container 3 at intervals in the circumferential direction. The air groove 82 is arranged so as to be located above and below from a position equivalent to the intake hole 81 in the axial direction.

As shown in FIG. 1, the mounting member 10 includes a peripheral wall portion 13 that surrounds the mouth portion 2A of the container body 2 from the outside in the radial direction, and a top wall portion 11 that closes the upper end opening of the peripheral wall portion 13. It is formed in the shape of an eclipsed cylinder.
The peripheral wall portion 13 is formed in a two-stage tubular shape, and includes a large diameter portion 13A attached to the mouth portion 2A of the container body 2 and a small diameter portion 13B extending upward from the upper end portion of the large diameter portion 13A. ing. An annular recess 13c extending in the circumferential direction is formed on the inner peripheral surface at the lower end of the large diameter portion 13A.

The mounting member 10 is stoppered against the mouth portion 2A of the container body 2, so that the annular recess 13c of the large diameter portion 13A is under the annular protrusion 2b formed in the upper cylinder portion 2D of the mouth portion 2A. It is attached by being cut and fitted. However, the method of mounting the mounting member 10 is not limited to tapping, and the mounting member 10 may be mounted on the mouth portion 2A of the container body 2 by, for example, screwing.
The lower end of the large diameter portion 13A of the peripheral wall portion 13 is tightly fitted to the lower cylinder portion 2C of the container body 2. As a result, the communication between the intake hole 81 and the outside of the container body 2 through the peripheral wall portion 13 and the lower cylinder portion 2C is blocked.
A male screw portion 5 is formed on the outer peripheral surface of the small diameter portion 13B of the peripheral wall portion 13.

The top wall portion 11 is arranged above the mouth portion 2A of the container body 2 and closes the mouth portion 2A of the container body 2.
The top wall portion 11 is formed with an injection cylinder 15 that projects upward and has an inside (hereinafter, referred to as an injection hole 15a) communicating with the communication hole 12. In the illustrated example, the dispensing cylinder 15 is arranged coaxially with the central axis O1. However, the present invention is not limited to such a configuration, and the dispensing cylinder 15 may be arranged at a position on the top wall portion 11 that is radially deviated from the central axis O1.
The injection cylinder 15 is formed at the peripheral edge of the opening of the communication hole 12 in the top wall portion 11. Of the injection cylinder 15, the lower end portion 15b has a larger inner diameter and outer diameter than the other portions.

The top wall portion 11 is located inside the outer peripheral portion 11A connected to the upper end portion of the small diameter portion 13B of the peripheral wall portion 13 and the outer peripheral portion 11A in the radial direction, and is located above the outer peripheral portion 11A. It is equipped with 11B.
A step portion 11C is formed in a portion of the top wall portion 11 located between the outer peripheral portion 11A and the inner peripheral portion 11B. The step portion 11C gradually extends upward as it goes inward in the radial direction.

An air introduction hole 83 that communicates the outside and the inside of the mounting member 10 is formed in the outer peripheral portion 11A of the top wall portion 11. The air introduction holes 83 are separately formed at positions of the outer peripheral portion 11A that sandwich the central axis O1 in the radial direction. The outside air that has flowed into the mounting member 10 through the air introduction hole 83 flows into the outer container 3 and the inner container 4 through the air flow hole 84, the air groove 82, and the intake hole 81 of the inner plug 30, which will be described later. ..
The inner peripheral portion 11B of the top wall portion 11 is formed with a hanging tubular portion 14 that projects downward from a portion located inside the air introduction hole 83 in the radial direction.

Here, the applicator 1 includes an inner plug 30 that closes the mouth portion 2A of the container body 2, and an injection valve 40 that is arranged between the mounting member 10 and the inner plug 30.
The small diameter portion 13B of the peripheral wall portion 13 of the mounting member 10 extends upward from the mouth portion 2A of the container body 2. As a result, a certain space is secured in the axial direction between the top wall portion 11 and the upper end portion of the mouth portion 2A of the container body 2. An inner plug 30 and an injection valve 40 are arranged in this space.

The inner plug 30 is provided with an annular bottom wall portion 31 whose outer peripheral edge portion is arranged on the upper end opening edge of the mouth portion 2A of the container body 2 and a bottom wall portion 31 projecting downward from the bottom wall portion 31. The seal tube portion 32 tightly fitted to the inside of the mouth portion 2A, the outer cylinder portion 33 erected upward from the outer peripheral edge portion of the bottom wall portion 31, and the inner peripheral edge portion of the bottom wall portion 31. It is provided with an eclipsed tubular inner cylinder portion 34 erected upward from the top. The bottom wall portion 31, the seal cylinder portion 32, the outer cylinder portion 33, and the inner cylinder portion 34 are arranged coaxially with the central axis O1.

At the lower end of the outer cylinder portion 33, an air flow hole 84 that penetrates the outer cylinder portion 33 in the radial direction and opens downward is formed. The air flow hole 84 communicates with the intake hole 81 through the air groove 82 of the upper cylinder portion 2D.
A middle cylinder portion 35 projecting upward is formed in a portion of the bottom wall portion 31 located between the outer cylinder portion 33 and the inner cylinder portion 34. The top wall portion 34a of the inner cylinder portion 34 is formed with a flow hole 36 that penetrates the top wall portion 34a in the axial direction. The flow hole 36 is arranged at a position radially deviated from the central axis O1 on the top wall portion 34a, and communicates the communication hole 12 with the inside of the container body 2.

In the top wall portion 34a of the inner cylinder portion 34, a housing cylinder portion 100 projecting downward is formed at a position displaced in the radial direction from the central axis O1. The central axis O2 of the accommodating cylinder 100 is arranged apart from the radial direction on the side opposite to the direction in which the flow hole 36 deviates from the central axis O1.
The central axis O2 of the accommodating cylinder 100 extends parallel to the central axis O1 and is open in the axial direction. At the lower end of the accommodating cylinder 100, a seating cylinder 101 whose diameter gradually decreases toward the bottom is formed.

A ball valve 102 that can move axially on the inner peripheral surface of the accommodating cylinder 100 is accommodated in the accommodating cylinder 100. The ball valve 102 is formed of a synthetic resin material, is formed in a spherical shape having an outer diameter equivalent to the inner diameter of a portion of the accommodating cylinder portion 100 located above the seating cylinder portion 101, and has an inner circumference of the seating cylinder portion 101. It is seated on the surface so that it can be separated.
A minute gap is provided between the outer peripheral surface of the ball valve 102 and the inner peripheral surface of the portion of the accommodating cylinder portion 100 located above the seating cylinder portion 101.

The ball valve 102 is restricted from coming out of the accommodating cylinder portion 100 upward by the valve body 42 described later.
However, the present invention is not limited to such a configuration, and even if a restricting protrusion is formed on the inner peripheral surface of the upper portion of the accommodating cylinder portion 100 so as to project inward in the radial direction and restrict the ball valve 102 from coming out upward. I do not care. The regulating protrusion can prevent the ball valve 102 from coming off.

The ball valve 102 moves to the valve body 42 side when the container body 2 is tilted or turned upside down, for example, when the contents are poured out, and when the container body 2 is returned to the original upright posture, the contents It moves to the seating cylinder 101 side by the negative pressure generated by the restoring force of the vessel 4.
As a result, when the contents are poured out from the pouring hole 15a, the residual contents existing in the pouring hole 15a can be drawn toward the accommodating cylinder 100 side, and dripping is avoided by the so-called suckback effect. It is possible.

The injection valve 40 is provided with respect to the valve body cylinder 41 arranged between the bottom wall portion 31 of the inner plug 30 and the top wall portion 11 of the mounting member 10 and the top wall portion 34a of the inner cylinder portion 34. It has a valve body 42 that closes the flow hole 36 by being seated from above, and a valve body connecting piece 43 that connects the valve body 42 and the valve body cylinder 41 and elastically supports the valve body 42. ..
Of the valve body cylinder 41, the upper end portion is fitted inside the hanging cylinder portion 14, and the lower end portion is fitted between the inner cylinder portion 34 and the middle cylinder portion 35. As a result, the inside of the valve body cylinder 41 defines a communication passage 85 that communicates the communication hole 12 and the flow hole 36.

The valve body 42 is formed in a disk shape in a plan view seen from the axial direction, and is arranged coaxially with the central axis O1. The valve body 42 is arranged inside the valve body cylinder 41.
The valve body connecting piece 43 extends along the circumferential direction, one end in the circumferential direction is connected to the outer peripheral edge of the valve body 42, and the other end is connected to the inner peripheral surface of the valve body cylinder 41. ing.
In the illustrated example, three valve body connecting pieces 43 are formed at intervals in the circumferential direction. As a result, the discharge valve 40 is a so-called three-point valve in which the valve body 42 is elastically supported by the three valve body connecting pieces 43.

The valve body connecting piece 43 is elastically deformed in the axial direction in response to fluctuations in the internal pressure of the inner container 4, the pressure of the contents to be injected, and the like, and the valve body 42 is elastically deformed in the axial direction to form the valve body 42 at the top wall portion 34a of the inner cylinder portion 34. It is elastically supported so that it can be displaced upward from the top. Therefore, the valve body 42 can be elastically displaced in the axial direction with respect to the inner plug 30, and the flow hole 36 can be opened. Thereby, for example, when the internal pressure of the inner container 4 rises, the flow hole 36 can be opened and the contents can be guided to the communication hole 12.

The valve body 42 does not completely close the upper end opening of the accommodating cylinder 100. Therefore, the inside of the accommodating cylinder 100 is always in communication with the communication passage 85. Further, the number of the valve body connecting pieces 43 is not limited to three. For example, one valve body connecting piece 43 may elastically support the valve body 42, or two or four or more valve bodies. The valve body 42 may be elastically supported by the connecting piece 43.

Of the valve body cylinder 41, the upper end portion is fitted inside the hanging cylinder portion 14, and the lower end portion is fitted between the inner cylinder portion 34 and the middle cylinder portion 35, so that the inner plug 30 is fitted. , The discharge valve 40 and the mounting member 10 are integrally combined. As a result, the mounting member 10, the inner plug 30, and the discharge valve 40 can be handled as one component.

The surrounding cylinder 20 is detachably arranged on the mounting member 10 and surrounds the communication hole 12 from the outside in the radial direction. An annular inner flange portion 21 arranged coaxially with the central axis O is formed on the inner peripheral surface of the surrounding cylinder 20. The injection cylinder 15 of the mounting member 10 is inserted inside the inner flange portion 21.
The lower surface of the inner flange portion 21 is in contact with the upper surface of the inner peripheral portion 11B of the top wall portion 11 of the mounting member 10 and the upper end opening edge of the small diameter portion 13B of the peripheral wall portion 13.

A female screw portion 6 is formed on the inner peripheral surface of the portion of the surrounding cylinder 20 located below the inner flange portion 21. The female screw portion 6 is screwed to the male screw portion 5 formed on the small diameter portion 13B of the peripheral wall portion 13 of the mounting member 10, so that the surrounding cylinder 20 is mounted on the mounting member 10.
The outer peripheral surface of the surrounding cylinder 20 and the outer peripheral surface of the large diameter portion 13A of the peripheral wall portion 13 are flush with each other.

The coating member 50 is housed inside the surrounding cylinder 20. The ejection cylinder 15 of the mounting member 10 is inserted inside the coating member 50.
The outer peripheral edge portion on the upper surface of the coating member 50 is formed in a curved surface shape that protrudes outward in the radial direction. The upper end of the coating member 50 projects upward from the upper end of the dispensing cylinder 15 and the upper end of the surrounding cylinder 20.
The coating member 50 holds the contents injected from the communication hole 12 and the injection hole 15a inside, and is pressed against the portion to be coated to exude the contents held inside. The coating member 50 is made of an elastically deformable material such as urethane or nitrile rubber.

Further, the coating tool 1 includes an overcap 70.
The overcap 70 has a ridged tubular shape and is arranged coaxially with the central axis O1. The overcap 70 covers the coating member 50 and the surrounding cylinder 20 from the upper side and the radial outside to the entire area. The overcap 70 includes a lid top wall portion 70a that covers the coating member 50 and the surrounding cylinder 20 from above, and a lid peripheral wall portion 70b that covers the coating member 50 and the surrounding cylinder 20 from the outside in the radial direction.

The lower portion of the lid peripheral wall portion 70b surrounds the top wall portion 11 of the mounting member 10 and the small diameter portion 13B of the peripheral wall portion 13 from the outside in the radial direction. The lower end of the lid peripheral wall portion 70b is in contact with or close to the upper end portion of the large diameter portion 13A of the peripheral wall portion 13 and the lower end portion of the surrounding cylinder 20.
At the upper end of the lid peripheral wall portion 70b, a contact portion 70c is formed which projects inward in the radial direction and abuts in the axial direction with the upper end opening edge of the surrounding cylinder 20. The contact portion 70c is a plate-shaped member whose front and back surfaces face in the circumferential direction. A plurality of abutting portions 70c are formed on the inner peripheral surface of the lid peripheral wall portion 70b at intervals in the circumferential direction. The contact portion 70c is not in contact with the coating member 50.

The overcap 70 includes a seal portion 72 that is detachably fitted in the dispensing cylinder 15. The seal portion 72 extends downward from the lid top wall portion 70a. The seal portion 72 is a shaft-shaped member arranged coaxially with the central axis O1 and having a lower end portion formed in a curved surface shape protruding downward. The seal portion 72 is tightly fitted to the inner peripheral surface of the upper end portion of the dispensing cylinder 15. The lid top wall portion 70a is in non-contact with the coating member 50.

Then, in the present embodiment, as shown in FIG. 1, the coating tool 1 has an inner holding portion 61 that supports the inner peripheral side of the coating member 50, an inner surface that supports the outer peripheral side of the coating member 50, and an outer surface that surrounds the coating member 50. A holding member 60 having an outer holding portion 62 supported on the inner peripheral surface of the cylinder 20 is provided.
The holding member 60 includes a bottom wall portion 63 that has a circular shape when viewed from above. The inner holding portion 61 has a tubular shape, and the inner holding portion 61 and the bottom wall portion 63 are respectively arranged coaxially with the central axis O1. The upper ends of the inner holding portion 61 and the outer holding portion 62 are respectively equivalent in axial positions, and are located below the upper ends of the surrounding cylinder 20 and the dispensing cylinder 15.

As shown in FIGS. 1 and 2, the inner holding portion 61 projects upward from the radial center portion of the bottom wall portion 63. The thickness of the inner holding portion 61 is equivalent to the thickness of the bottom wall portion 63.
The outer holding portion 62 projects upward from the outer peripheral edge portion of the bottom wall portion 63. A plurality of outer holding portions 62 are arranged on the outer peripheral edge portion of the bottom wall portion 63 at intervals in the circumferential direction. In the illustrated example, eight outer holding portions 62 are arranged at equal intervals on the outer peripheral edge portion of the bottom wall portion 63.
The quantity and the position of the outer holding portion 62 are not limited to such a configuration, and can be arbitrarily changed.

The outer holding portion 62 is connected to the outer peripheral edge portion of the bottom wall portion 63 via an outer bent portion 62A formed so as to be bendable and deformable. The outer holding portion 62 is rotatable in the vertical direction around the outer bent portion 62A. The outer holding portion 62 extends upward from the upper end portion of the outer bent portion 62A. The outer holding portion 62 may be directly connected to the outer peripheral edge portion of the bottom wall portion 63.

The thickness of each of the outer holding portion 62 and the bottom wall portion 63 is the same as each other, and the thickness of the outer bent portion 62A is smaller than that of the outer holding portion 62. The size of the outer bent portion 62A in the circumferential direction is smaller than that of the outer holding portion 62. The central portions of the outer holding portion 62 and the outer bent portion 62A in the circumferential direction coincide with each other.
Here, an engaging protrusion 20a that engages with the outer holding portion 62 from above the outer holding portion 62 is formed at the upper end portion of the surrounding cylinder 20. By engaging the engaging protrusion 20a and the outer holding portion 62, it is possible to prevent the holding member 60 from coming out of the surrounding cylinder 20 upward.

Further, in the present embodiment, as shown in FIG. 1, the inner holding portion 61 and the outer holding portion 62 have an inner locking protrusion 64 and an outer locking protrusion 65 protruding toward the coating member 50 side. Each is formed separately.
The inner locking protrusion 64 is formed at the central portion of the inner holding portion 61 in the axial direction. The inner locking protrusion 64 is formed in a claw shape in which the thickness in the axial direction becomes thinner so that the upper surface gradually extends downward toward the outside in the radial direction. As shown in FIG. 2, a plurality of inner locking protrusions 64 are formed on the outer peripheral surface of the inner holding portion 61 at intervals in the circumferential direction. In the illustrated example, four inner locking protrusions 64 are formed on the outer peripheral surface of the inner holding portion 61 at equal intervals.

The outer locking protrusion 65 is formed at the upper end of the outer holding portion 62. The outer locking protrusion 65 is formed in a claw shape in which the thickness in the axial direction becomes thinner so that the upper surface gradually extends downward toward the inside in the radial direction.
A first die-cutting hole 62c that penetrates the outer holding portion 62 in the thickness direction is formed in a portion of the outer holding portion 62 that is connected to the lower end of the outer locking protrusion 65. Thereby, for example, when the holding member 60 is formed by injection molding of a synthetic resin material or the like, the outer locking protrusion 65 can be easily and sharply formed.
The inner locking protrusion 64 is located below the outer locking protrusion 65. All of the plurality of inner locking protrusions 64 are located at positions in the circumferential direction in which one of the plurality of outer locking protrusions 65 is located.

A second die-cutting hole 63a that axially penetrates the bottom wall portion 63 is formed in a portion of the bottom wall portion 63 of the holding member 60 that is axially opposed to the inner locking protrusion 64 in the central portion in the radial direction. Has been done. Thereby, for example, when the holding member 60 is formed by injection molding of a synthetic resin material or the like, the inner locking protrusion 64 can be easily and sharply formed.

Further, in the present embodiment, the outer holding portion 62 is arranged so as to be separated from the outer peripheral side of the coating member 50 in the radial direction. The outer holding portion 62 is rotated downward around the outer bent portion 62A in a state before the holding member 60 is inserted inside the surrounding cylinder 20, so that the outer holding portion 62 is radially from the outer peripheral surface of the coating member 50. It separates toward the outside of.
Further, in the present embodiment, the dispensing cylinder 15 supports the inner holding portion 61 from the inside. The pouring cylinder 15 is fitted inside the inner holding portion 61, and the upper surface of the lower end portion 15b of the pouring cylinder 15 is in axial contact with or close to the lower end opening edge of the inner holding portion 61.
As shown in FIG. 2, the holding member 60 configured as described above is formed with the outer bent portion 62A extending radially from the outer peripheral edge portion of the bottom wall portion 63. In the illustrated example, the holding member 60 is integrally formed by injection molding of a synthetic resin material.

When arranging the coating member 50 inside the surrounding cylinder 20, first, as shown in FIG. 3, the coating member 50 is held by inserting the inner holding portion 61 inside the coating member 50. It is arranged on the bottom wall portion 63 of the. At this time, the inner locking protrusion 64 formed in the inner holding portion 61 bites into the inner peripheral surface of the coating member 50.

Next, as shown in FIG. 4, the outer bent portion 62A is bent inward in the radial direction, and the outer surface of the outer holding portion 62 is raised inside the surrounding cylinder 20 while the outer holding portion 62 is raised upward. The coating member 50 and the holding member 60 are inserted into the surrounding cylinder 20 while being slidably contacted with the peripheral surface. At this time, the bottom wall portion 63 of the holding member 60 is arranged on the inner flange portion 21 of the surrounding cylinder 20, and the outer locking protrusion 65 of the outer holding portion 62 bites into the outer peripheral surface of the coating member 50.

Next, a procedure for using the coating tool 1 configured as described above will be described.
When the contents are applied to the portion to be coated by the coating member 50, the overcap 70 is removed, the ejection hole 15a of the ejection cylinder 15 is opened, and the mouth portion 2A of the container body 2 is directed downward, for example. The outer container 3 is squeeze-deformed inward in the radial direction while tilting the container body 2.

As a result, the inner container 4 is deflated and deformed inward in the radial direction together with the outer container 3 to reduce the volume. Therefore, as the internal pressure of the inner container 4 rises and, for example, the valve body 42 is pressed by the contents, the valve body connecting piece 43 is elastically displaced toward the communication hole 12 in the axial direction. As a result, the valve body 42 can be separated from the inner plug 30, and the flow hole 36 can be opened.

Therefore, the contents filled in the container body 2 can flow into the communication passage 85 through the distribution hole 36, and further be discharged to the outside from the pouring hole 15a of the pouring cylinder 15 through the communication hole 12. ..
At this time, the ball valve 102 moves to the valve body 42 side due to the weight of the ball valve 102 and the pressure in the inner container 4 exerted through the seating cylinder portion 101 of the accommodating cylinder portion 100.

After that, by returning the container body 2 to the upright posture and stopping or canceling the squeeze deformation of the container body 2, when the increase in the internal pressure of the inner container 4 is stopped or decreased, the pressing force of the contents on the valve body 42 is applied. Combined with the weakening, the valve body connecting piece 43 is restored and displaced downward by the elastic restoring force.
As a result, the valve body 42 can be seated on the inner plug 30 to close the flow hole 36. Therefore, the inner container 4 can be sealed and the pouring of the contents can be stopped.

At this time, the ball valve 102 moves downward in the accommodating cylinder 100 due to the pressure drop in the inner container 4, and the portion of the accommodating cylinder 100 located on the axial communication hole 12 side of the ball valve 102. The seat is seated on the seating cylinder portion 101 while increasing the volume.
As a result, the inside of the connecting passage 85 becomes negative pressure, and the contents remaining in the dispensing cylinder 15 are drawn into the connecting passage 85 or the accommodating cylinder 100 by the suckback effect accompanying the movement of the ball valve 102. Can be done. Therefore, the residual contents are less likely to leak to the outside from the injection hole 15a, and dripping can be prevented.

The ball valve 102 is provided with a small gap between the outer peripheral surface of the ball valve 102 and the inner peripheral surface of the accommodating cylinder 100 to the extent that the pull-in action due to the suckback effect described above occurs. Move within 100.
By releasing the squeeze deformation of the container body 2, the outer container 3 begins to be restored and deformed, so that a negative pressure is generated between the outer container 3 and the inner container 4, and a gap between the outer container 3 and the inner container 4 is generated. Becomes a negative pressure. As a result, outside air flows into the gap between the outer container 3 and the inner container 4 through the air introduction hole 83, the air flow hole 84, the air groove 82, and the intake hole 81.

Then, the internal pressure of the gap between the outer container 3 and the inner container 4 increases due to the inflow of the outside air, so that the outer container 3 can be restored and deformed while the volume of the inner container 4 is reduced. Further, as described above, the content injected to the outside from the injection hole 15a is impregnated into the coating member 50.
After that, the content can be applied to the portion to be coated by sliding the coating member 50 impregnated with the content while pressing it against the portion to be coated such as the skin of the user.

As described above, according to the coating tool 1 according to the present embodiment, the inner peripheral side of the coating member 50 is supported by the inner holding portion 61, and the outer peripheral side of the coating member 50 is supported by the outer holding portion 62. At this time, since the inner locking protrusion 64 and the outer locking protrusion 65 formed on the inner holding portion 61 and the outer holding portion 62 each project toward the coating member 50 side, the coating member 50 holds the coating member 50. It becomes possible to restrict the movement of the member 60, and the coating member 50 can be firmly fixed between the inner holding portion 61 and the outer holding portion 62.

Further, since the outer holding portion 62 is arranged so as to be radially separated from the outer peripheral side of the coating member 50, the outer holding portion 62 is retracted to the outside in the radial direction and is coated by the inner holding portion 61. The inner peripheral side of the member 50 can be supported, and the coating member 50 can be easily attached to the holding member 60. Then, the outer holding portion 62 can be moved closer to the outer peripheral side of the coating member 50 in the radial direction, and the coating member 50 can be firmly held by the holding member 60.

Further, since the outer surface of the outer holding portion 62 is supported by the inner peripheral surface of the surrounding cylinder 20, it is possible to prevent the outer holding portion 62 from being deformed in the direction away from the coating member 50.
From the above, the coating member 50 can be firmly fixed in the surrounding cylinder 20.
Further, since the coating tool 1 includes a pouring cylinder 15 whose inside communicates with the communication hole 12 and supports the inner holding portion 61 from the inside, the inner holding portion 61 is deformed in a direction away from the coating member 50. Can be suppressed, and the coating member 50 can be more firmly fixed in the surrounding cylinder 20.

(Second Embodiment)
Next, the coating tool 1B according to the second embodiment of the present invention will be described with reference to FIGS. 5 to 8. In the second embodiment, the same parts as the components in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 5, in the coating tool 1B according to the present embodiment, the dispensing cylinder 15B is integrally formed with the surrounding cylinder 20B. The dispensing cylinder 15B is connected to the inner peripheral edge portion on the upper surface of the inner flange portion 21 of the surrounding cylinder 20B. An insertion cylinder portion 23 that projects downward is formed on the inner peripheral edge portion on the lower surface of the inner flange portion 21. The insertion tube portion 23 is tightly fitted in the communication hole 12 of the mounting member 10B.
Further, the holding member 60B of the coating tool 1B has two plate-shaped inner holding portions 61B instead of the tubular inner holding portion 61.

The front and back surfaces of the inner holding portion 61B face in the radial direction. The two inner holding portions 61B face each other with the central axis O1 in one direction in the radial direction. As shown in FIG. 6, an insertion hole 66 having a rectangular shape in the top view is formed at the central portion in the radial direction of the bottom wall portion 63B of the holding member 60B. The insertion hole 66 is arranged in a direction in which two of the four sides extend in the one direction and the remaining two sides extend in the orthogonal direction orthogonal to the one direction in the top view. The insertion hole 66 is arranged coaxially with the central axis O1.
The inner holding portion 61B is connected to the inner peripheral surface of the insertion hole 66 in the bottom wall portion 63B via the inner bent portion 67A formed so as to be bendable and deformable. The inner holding portion 61B is rotatable around the inner bent portion 67A.

The inner holding portion 61B includes a vertically elongated portion 67B extending upward from the inner bent portion 67A, and a pair of horizontally elongated portions 67C protruding separately from the upper end portion of the vertically elongated portion 67B on both sides in the orthogonal direction. It has a T-shape when viewed from one direction.
The inner locking protrusion 64B is separately formed in a pair of horizontally elongated portions 67C of the inner holding portion 61B.

A needle member 68 projecting upward is provided on the bottom wall portion 63B of the holding member 60B. The needle members 68 have a circular shape when viewed from above, and a plurality of needle members 68 are arranged on the bottom wall portion 63B.
The plurality of needle members 68 include an inner needle member 68A and an outer needle member 68B arranged on the outer side in the radial direction from the inner needle member 68A and having a diameter larger than that of the inner needle member 68A.
The inner needle member 68A is arranged one by one at each position of the bottom wall portion 63B so as to sandwich the insertion hole 66 in one direction. Three outer needle members 68B are arranged on the bottom wall portion 63B at positions sandwiching the insertion holes 66 in the orthogonal direction at intervals in the circumferential direction.

When arranging the coating member 50 inside the surrounding cylinder 20B, first, as shown in FIG. 7, the coating member 50 is held by the holding member 60B while the plurality of needle members 68 are pierced into the lower surface of the coating member 50. It is arranged on the bottom wall portion 63B.
Next, as shown in FIG. 8, the coating member 50 and the holding member 60B are attached to the surrounding cylinder 20B while the inner surface of the inner holding portion 61B facing inward in the radial direction is slidably contacted with the outer peripheral surface of the dispensing cylinder 15B. By inserting it inward, the inner bent portion 67A is bent outward in the radial direction, and the inner holding portion 61B is raised upward. As a result, the bottom wall portion 63B of the holding member 60B is arranged on the inner flange portion 21 of the surrounding cylinder 20B, and the inner locking protrusion 64B of the inner holding portion 61B bites into the inner peripheral surface of the coating member 50. .. At this time, as in the above embodiment, the outer surface of the outer holding portion 62 is in sliding contact with the inner peripheral surface of the surrounding cylinder 20B, and the outer locking protrusion 65 bites into the outer peripheral surface of the coating member 50.

As described above, according to the coating tool 1B according to the present embodiment, since the dispensing cylinder 15B is formed integrally with the surrounding cylinder 20B, the surrounding cylinder 20B is held by the holding member 60B after the contents are used up. And when it is removed from the mounting member 10B together with the coating member 50 and replaced, it is possible to maintain the state in which the outer holding portion 62 is supported by the surrounding cylinder 20B and the inner holding portion 61B is supported by the pouring cylinder 15B. Therefore, the coating member 50 can be firmly fixed in the surrounding cylinder 20B even at the time of replacement.

(Third Embodiment)
Next, the coating tool 1C according to the third embodiment of the present invention will be described with reference to FIGS. 9 to 12. In the third embodiment, the same parts as the components in the first embodiment and the second embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIGS. 9 and 10, in the coating tool 1C according to the present embodiment, a circular insertion hole 66C is formed in the bottom wall portion 63C of the holding member 60C in a top view. The insertion hole 66C is arranged coaxially with the central axis O1.
The inner holding portion 61C has a tubular shape having an outer diameter smaller than that of the insertion hole 66C, and is connected to the inner peripheral surface of the insertion hole 66C in the bottom wall portion 63C via a connecting piece 69 extending in the radial direction. .. The inner holding portion 61C is arranged coaxially with the central axis O1.
The connection piece 69 connects the lower end of the outer peripheral surface of the inner holding portion 61C and the inner peripheral surface of the insertion hole 66C in the bottom wall portion 63C. Two connecting pieces 69 are arranged at intervals in the circumferential direction. The connecting piece 69 gradually extends upward as it goes inward in the radial direction.

The inner holding portion 61C is formed with a vertical hole 69c that penetrates a part of the circumferential direction in the radial direction over the entire area in the axial direction. Therefore, the inner holding portion 61C has a C shape when viewed from above. Since the vertical hole 69c is formed in the inner holding portion 61C, the inner holding portion 61C can be elastically deformed in the radial direction.
An inner locking protrusion 64 is formed on the outer peripheral surface of the inner holding portion 61C. A plurality of inner locking protrusions 64 are formed on the outer peripheral surface of the inner holding portion 61C at intervals in the circumferential direction. In the illustrated example, three inner locking protrusions 64 are formed at equal intervals over the entire circumference of the inner holding portion 61C.

The two connecting pieces 69 are separately arranged on the outer peripheral surface of the inner holding portion 61C, which is located between the inner locking protrusions 64 which are adjacent to each other in the circumferential direction in the upper view.
The vertical holes 69c, the inner locking protrusion 64, and the connecting piece 69 each have the same size in the circumferential direction. The sizes of the vertical hole 69c, the inner locking protrusion 64, and the connecting piece 69 in the circumferential direction may be different from each other.

When arranging the coating member 50 inside the surrounding cylinder 20B, first, as shown in FIG. 11, the inner holding portion 61C is inserted inside the coating member 50, and the coating member 50 is inserted into the bottom of the holding member 60C. It is arranged on the wall portion 63C. At this time, the inner locking protrusion 64 formed in the inner holding portion 61C bites into the inner peripheral surface of the coating member 50.

Next, as shown in FIG. 12, by inserting the ejection cylinder 15B of the surrounding cylinder 20B inside the inner holding portion 61C, the coating member 50 and the holding member 60C are inserted while expanding the diameter of the inner holding portion 61C. , Insert the inside of the surrounding cylinder 20B from above the surrounding cylinder 20B. At this time, as in the above embodiment, the outer surface of the outer holding portion 62 is in sliding contact with the inner peripheral surface of the surrounding cylinder 20B, and the outer locking protrusion 65 bites into the outer peripheral surface of the coating member 50.
As described above, in the coating tool 1C according to the present embodiment, since the inner holding portion 61C of the inner holding portion 61C is elastically deformable in the radial direction, the holding member 60C is elastically deformed together with the coating member 50. It can be firmly fixed in the surrounding cylinder 20B with little sticking.

(Fourth Embodiment)
Next, the coating tool 1D according to the fourth embodiment of the present invention will be described with reference to FIG. In the fourth embodiment, the same parts as the components in the first to third embodiments are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 13, in the coating tool 1D according to the present embodiment, as in the first embodiment, the dispensing cylinder 15 is formed on the mounting member 10, and the inner holding portion 61C in the holding member 60 is the third embodiment. Similar to the form, it is elastically displaceable in the radial direction.
Therefore, the shape of the surrounding cylinder 20 can be simplified, and as described above, the holding member 60 can be firmly fixed to the surrounding cylinder 20 together with the coating member 50 with less rattling.

The present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the spirit of the present invention.

For example, in each of the above embodiments, the coating tool 1 has shown a configuration including an inner plug 30 and an injection valve 40, but the present invention is not limited to such an embodiment. The applicator does not have to include the inner plug 30 and the discharge valve 40.
Further, in each of the above embodiments, the coating tools 1 to 1D are provided with the injection cylinders 15 and 15B having the inside communicating with the communication hole 12 and supporting the inner holding portion 61 from the inside. , The mode is not limited to this. The applicator does not have to include the dispensing cylinders 15 and 15B.

Further, in each of the above embodiments, the surrounding cylinders 20 and 20B are detachably arranged on the mounting members 10 and 10B, but the present invention is not limited to such a mode. The surrounding cylinders 20 and 20B may be fixed to the mounting members 10 and 10B.
Further, in each of the above embodiments, the pouring cylinders 15 and 15B are integrally formed with the mounting member 10 or the surrounding cylinder 20B, but the present invention is not limited to such a mode. The dispensing cylinders 15 and 15B may be separate from the mounting members 10, 10B and the surrounding cylinders 20 and 20B.

Further, in each of the above embodiments, the inner locking protrusions 64 and 64B are formed in the inner holding portions 61, 61B and 61C, and the outer locking protrusion 65 is formed in the outer holding portion 62. However, the present invention is not limited to this aspect. The inner locking protrusions 64, 64B and the outer locking protrusion 65 may be formed separately from the holding member 60.

Further, in each of the above-described embodiments, the container body 2 is configured as a laminated peelable container (derami bottle) in which the inner container 4 is detachably laminated on the inner surface of the outer container 3. It is not limited to the mode. The container body 2 may be, for example, a squeeze bottle capable of discharging the contents. Further, a discharger such as a pump may be attached to the container body 2 and the contents may be discharged to the coating member 50 through the discharger.

Further, in each of the above embodiments, the accommodating cylinder portion 100 in which the ball valve 102 is accommodated is formed in the inner plug 30, and the suckback effect can be obtained by moving the ball valve 102 within the accommodating cylinder portion 100. Although shown, it is not limited to such an embodiment. The inner plug 30 does not have to form a storage cylinder portion 100 in which the ball valve 102 is housed.
In addition, it is possible to replace the constituent elements in the above-described embodiment with well-known constituent elements as appropriate without departing from the spirit of the present invention, and the above-mentioned modified examples may be appropriately combined.

1, 1B, 1C, 1D Coating tool 2 Container body 2A Mouth 10 Mounting member 11 Top wall 12 Communication hole 15, 15B Note cylinder 15a Note hole 20, 20B Surrounding cylinder 50 Coating member 60 Holding member 61, 61B, 61C inner holding part 62 outer holding part 64, 64B inner locking protrusion (locking protrusion)
65 Outer locking protrusion (locking protrusion)

Claims (4)

An eclipsed tubular mounting member that is mounted on the mouth of the container body that houses the contents and has a communication hole that communicates with the inside of the container body on the top wall.
A surrounding cylinder arranged on the mounting member and surrounding the communication hole from the outside in the radial direction,
A coating tool that is disposed inside the surrounding cylinder and includes a tubular coating member that applies the contents to the portion to be coated.
A holding member having an inner holding portion that supports the inner peripheral side of the coating member, and an outer holding portion whose inner surface supports the outer peripheral side of the coating member and whose outer surface is supported by the inner peripheral surface of the surrounding cylinder. With
A coating tool characterized in that the inner holding portion and the outer holding portion are formed with a locking protrusion that protrudes toward the coating member side. The coating tool according to claim 1, wherein the outer holding portion is arranged so as to be separated from the outer peripheral side of the coating member in the radial direction. The coating tool according to claim 1 or 2, wherein the inner side communicates with the communication hole and the inner holding portion is provided with a pouring cylinder for supporting the inner holding portion from the inner side. The surrounding cylinder is detachably arranged on the mounting member.
The coating tool according to claim 3, wherein the pouring cylinder is integrally formed with the surrounding cylinder.

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