JP2002053163A - Intermediate plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intermediate plug which can allow a coating solution to smoothly flow when a neck of a vessel is set in a diagonally downward position, and prevent the coating solution from flowing out when the neck of the vessel is set in an inverted position. SOLUTION: A lower flow passage 18 for accommodating a spherical plug body 19 is formed in an outflow passage to allow the coating solution in a vessel body 1 to flow out of the vessel body 1, a distribution hole 17a is provided in an upper part of the lower flow passage 18, a coating solution inflow hole 18b is provided in a lower part thereof, and the spherical plug body 19 is disposed between the holes 17a and 18b in a rolling manner. When the neck 1a of the vessel body 1 is in a diagonally downward position, the coating solution flowing into the lower flow passage 18 from the coating solution inflow hole 18b passes through between the spherical plug body 19 and a circumferential wall of the lower flow passage 18, and flows out of the distribution hole 17. When the neck 1a of the vessel body l is in a downward position, the spherical plug body 19 rolls on the distribution hole 17a and closes the distribution hole 17a to stop the outflow of the coating solution.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner plug used for a liquid container for storing various liquids such as a coating liquid (for example, a water repellent and an anti-fog agent) for a window glass of an automobile.

[0002]

2. Description of the Related Art Conventionally, a coating container as shown in FIG. 7 has been proposed as a liquid container for storing a coating liquid such as a window glass of an automobile (Japanese Utility Model Laid-Open No. 6-85258). This coating container has a container body 31 containing a coating liquid (not shown) therein, and a neck 31a of the container body 31 (FIG. 8).
), A donut-shaped sponge 33 fixed to the inner lid part 32,
A cap 34 attached to the inner lid portion 32 (see FIG. 8)
A concave portion 3 formed at the center of the inner lid portion 32
5 has an outflow hole 35a formed in a penetrating manner. A rod-shaped body 36 hangs down from the ceiling plate of the cap 34, and a substantially conical projection 3 extends from the lower end surface of the rod-shaped body 36.
6a is protruded. When the cap 34 is attached, the rod-shaped body 36 is inserted into the central through hole 33 of the sponge 33.
a, and the above-mentioned convex portion 36a is formed in the outlet hole 3 of the inner lid portion 32.
The upper end 5a is in close contact with the opening. An inner plug 37 for plugging the neck opening 31b of the container body 31 is fitted. The inner plug 37 is formed in a cylindrical shape with a bottom, and a through hole 37a is formed in a portion of the bottom near the outer periphery. In such a coating container, the container body 3
When the coating liquid inside 1 has permeability, even if the liquid level in the container body 31 is tilted or splashed due to vibration during transportation or the like, the coating liquid flows directly into the outflow hole 35a. Nothing. In FIG. 8, reference numeral 32a denotes a screw portion formed on the outer peripheral surface of the inner lid portion 32, 34a denotes a screw portion formed on the inner peripheral surface of the cap 34, and a screw portion 32a of the inner lid portion 32 I'm crazy.

In such a coating container, in use, after the cap 34 is removed from the inner lid portion 32, the container main body 31 is set to an obliquely downward posture or an inverted posture, and in this state, the body of the container main body 31 is manually operated. While pressing, the sponge 33 is pressed against a window glass or the like of an automobile and wiped.

[0004]

However, since the inner plug 37 has a structure in which the through hole 37a is formed at the bottom of the inner plug near the outer periphery, the container main body 31 is tilted obliquely downward with the cap 34 removed. Or in an inverted posture,
The coating liquid must be supplied through the through hole 37a of the inner plug 37, the outflow hole 35a of the inner lid part 32, the recess 35, and the central through hole 33 of the sponge 33
a and flows out of the container body 31. Therefore, if the application container is mistakenly turned upside down on the vehicle body during the work of wiping the window glass of the automobile, the application liquid flows out of the application container and comes into contact with the vehicle body. There was a risk of problems such as the peeling of the paint, sticking to the vehicle body and making it difficult to drop. In addition, during the above operation, the application container is often set in an obliquely downward position, and it is rare that the application container is in an inverted position. It is more likely to be in an inverted posture than to do it. Therefore, the inner plug used for various liquid containers such as a coating container is such that the coating liquid flows out smoothly when in an obliquely downward position, but does not flow out when in an inverted position. Realization is strongly desired.

The present invention has been made in view of the above circumstances, and provides an inner plug in which a coating liquid flows out smoothly when it is in an obliquely downward posture, but does not flow out when it is in an inverted posture. For that purpose.

[0006]

In order to achieve the above-mentioned object, an inner plug according to the present invention is a hollow inner plug for closing a neck opening of a container main body. An outflow passage for flowing out of the plug is provided in the up-down direction, a plug housing portion for housing the spherical plug is formed in the outflow channel, and a liquid outlet hole smaller in diameter than the spherical plug is provided at an upper portion of the plug housing portion. In addition, a liquid inlet hole is provided at the lower part, and a spherical stopper is rollably disposed between the liquid outlet hole and the liquid inlet hole, and in a state where the neck of the container body is obliquely downward, The liquid that has flowed into the plug housing from the liquid inlet hole passes through the space between the spherical plug and the peripheral side wall of the plug housing so as to flow out of the liquid outlet hole, and in a state where the neck of the container body faces downward, The spherical plug rolls over the liquid outlet and closes the liquid outlet, causing the liquid to flow. A configuration that was configured to stop.

[0007] That is, the inner plug of the present invention is provided with an outflow passage through which the liquid in the container main body flows out of the container main body in the up-down direction. Are formed. In addition, a liquid outlet hole smaller in diameter than the spherical plug is provided at the upper part of the stopper housing part, and a liquid inlet hole is provided at the lower part, and a spherical stopper is provided between the liquid outlet hole and the liquid inlet hole. The body is arranged to roll freely. In a state where the neck of the container body is inclined obliquely downward, the liquid flowing into the plug housing from the liquid inlet passes through the space between the spherical plug and the peripheral side wall of the plug housing and flows out of the liquid outlet. When the neck of the container body is turned downward, the spherical plug rolls onto the liquid outlet hole to close the liquid outlet hole and stop the outflow of the liquid. Therefore, the work of wiping the window glass or the like of an automobile can be performed with the neck of the container body facing obliquely downward. Also, during the above operation, even if the container body is erroneously turned upside down on the vehicle body, the liquid in the container body does not flow out of the container body, and the liquid in the container body is Depending on the components of the application liquid, there is no danger that the coating of the vehicle body will come off, or that the vehicle body will stick to the vehicle body and become difficult to drop, depending on the components of the coating liquid.

In the present invention, a liquid inlet hole having a diameter larger than that of the spherical plug is formed in a lower portion of the stopper housing portion, and a convex portion is formed to project inward from an inner peripheral surface of the liquid inlet hole. In the state where the neck of the container body is directed upward, when the spherical plug is configured to be prevented from falling by the convex portion, a portion of the inner peripheral surface of the plug housing portion in which the convex portion is not protruded. A gap is formed between the inner plug and the spherical plug, and the liquid remaining in the inner plug flows down into the container body through the gap.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an application container using an embodiment of the inner plug of the present invention. In the figure, 1 is an internal space 1
b is a plastic container main body in which a coating liquid (not shown) is stored, 2 is a plastic middle lid portion detachably fixed to the neck 1a of the container main body 1, and 4 is the above-mentioned middle container. This is a plastic cap mounted on the lid 2.

The container main body 1 is formed in a cylindrical shape with a bottom, and an annular engaging protrusion detachably engages with an engaging protrusion 9a of a mounting wall 9 described later on an outer peripheral surface of a neck portion 1a. Article 10 is formed.

As shown in FIG. 2, the inner lid part 2 comprises a disk-shaped part 5 and an outer peripheral wall 6 formed on the outer peripheral edge of the disk-shaped part 5. A recess 7 in the center of the upper surface of 5
An outflow hole 8 having a circular cross section is formed in the center of the bottom surface of the concave portion 7 in a penetrating manner. An annular mounting wall 9 hangs down from the lower surface of the disk-shaped portion 5. An engagement ridge 9a elastically engaged with the retainer 10 is formed so as to extend in the circumferential direction.

The outer peripheral wall 6 has a number of projections 11 projecting from the upper end of the inner peripheral surface thereof at equal intervals in the circumferential direction. Each of the projections 11 has a donut-shaped polyester. The sponge 3 made of is bonded and fixed. The outer peripheral wall 6 has a thread 6a formed on the outer peripheral surface thereof, the thread 6a engaging with a thread 4a of the cap 4 described later.

On the inner peripheral surface of the cap 4, a screw portion 4a which engages with the screw portion 6a of the inner lid 2 is formed. Further, a rod-shaped body 12 is inserted from the ceiling plate of the cap 4 to pass through the donut-shaped central through-hole 3a of the sponge 3, and the lower end of the rod-shaped body 12 is attached to the cap 4. Sometimes, it is formed in a conical plug portion 12a which is in close contact with the upper end opening surface of the outflow hole 8 of the inner lid portion 2.

A cylindrical inner plug 15 is inserted and fixed in the neck opening 1c of the container body 1 so as to fit inside. As shown in FIG. 3, the inner plug 15 has an upper flow path 16 formed in a columnar shape and a through hole (fluid outlet hole) 17a having a circular cross section in the center. The provided partition wall 17 and a lower channel (plug body storage portion) 18 are formed, and the stainless steel spherical plug 1 is provided in the lower channel 18.
9 are accommodated. An outflow path is provided inside the inner plug 15 by the upper flow path 16, the flow hole 17a, and the lower flow path 18. The lower flow path 18 has an arc surface 18a formed concentrically with the flow hole 17a in the center of the upper surface (this arc surface 18a has a shape along the outer peripheral surface of the spherical plug body 19). Has been formed). That is, the lower end opening of the flow hole 17a is positioned at the center of the upper surface of the arc surface 18a. Further, a coating liquid inflow hole (fluid inlet hole) 18b is formed below the lower flow path 18. Such a lower channel 18
Has an inner peripheral surface that gradually decreases in diameter in the lower part (that is, the coating liquid inflow hole 18b), gradually expands upward in the middle height part, and has a cylindrical shape in the upper part. Is formed. Then, the four convex portions 20 are provided on the intermediate height portion.
Are provided at equal intervals (see FIG. 4). The lower surface of each of the protrusions 20 gradually decreases in diameter upward, and the upper surface thereof gradually increases in diameter upward.
In addition, the diameter of a virtual circle (not shown) formed at the distal end surface of each of the projections 20 is formed smaller than the diameter of the spherical plug 19, thereby preventing the spherical plug 19 from falling. are doing. In the figure, 15a is the inner plug 15
Of the container body 1
In the upper part of the inner peripheral surface of the neck opening 1c (see FIG. 2).

In the above configuration, when not in use, the screw 4a of the cap 4 is fully screwed into the screw 6a of the inner lid 2 (see FIG. 2). As a result, the outer peripheral surface of the plug portion 12a of the rod portion 12 of the cap 4 is
And closes the valve at the upper end opening surface of the outflow hole 8. In this state, the spherical plugs 19 are supported by the respective projections 20 of the inner plug 15, and do not fall into the internal space 1b of the container body 1. Further, since a gap 22 (see FIG. 4) is formed between the spherical plug 19 and the inner peripheral surface of the lower channel 18, the coating liquid remaining in the inner plug 15 passes through the gap 22. Down into the internal space 1b of the container body 1.

On the other hand, in use, the cap 4
After loosening the screw portion 4a of the container body 1 and removing the container body 1 from the inner lid portion 2, the container main body 1 is turned obliquely downward. Pressing and wiping is performed. As described above, when the container body 1 is in the obliquely downward position, the spherical plug 1
9 rolls to the upper surface side of the lower flow path 18 (see FIG. 5), and the coating liquid in the container main body 1 flows from the lower end opening of the lower flow path 18 to the coating liquid inflow hole by the pump action by the pressing of the finger. 18b
After flowing into the flow hole 17a through the gap between the spherical plug 19 and the peripheral side wall of the lower flow path 18,
a, the upper channel 16, the outflow hole 8 of the inner lid 2, the recess 7
And flows into the sponge 3. Then, the coating solution flowing into the sponge 3 spreads over the entire sponge 3 and is uniformly applied to a window glass of an automobile.

Further, even when the container body 1 is turned upside down with the cap 4 removed, the spherical plug 19 rolls on the flow hole 17a to close the flow hole 17a (see FIG. 6). Therefore, the coating liquid in the container body 1 does not flow out of the container body 1.

As described above, according to the inner plug 15, even when the container main body 1 is in the inverted posture, the spherical plug 19 allows the flow hole 17 to be formed.
a is closed, and the coating liquid in the container body 1 does not flow out of the container body 1. For this reason, even if the application container is erroneously turned upside down on the vehicle body during the work of wiping the window glass or the like of the automobile, problems such as peeling of the paint of the vehicle body with the application liquid do not occur.

[0020]

As described above, according to the inner plug of the present invention,
When the neck of the container body is inclined obliquely downward, the liquid flowing into the plug housing through the liquid inlet passes through the space between the spherical plug and the peripheral side wall of the plug housing and flows out of the liquid outlet. When the neck of the container body is turned downward, the spherical plug rolls on the liquid outlet hole to close the liquid outlet hole and stop the outflow of the liquid. Therefore, the work of wiping the window glass or the like of an automobile can be performed with the neck of the container body facing obliquely downward. Also, during the above operation, even if the container body is erroneously turned upside down on the vehicle body, the liquid in the container body does not flow out of the container body, and the liquid in the container body is Depending on the components of the application liquid, there is no danger that the coating of the vehicle body will come off, or that the vehicle body will stick to the vehicle body and become difficult to drop, depending on the components of the coating liquid.

In the present invention, a liquid inlet hole having a diameter larger than that of the spherical stopper is formed in a lower portion of the stopper housing portion, and a convex portion is formed to protrude inward from an inner peripheral surface of the liquid inlet hole. In the state where the neck of the container body is directed upward, when the spherical plug is configured to be prevented from falling by the convex portion, a portion of the inner peripheral surface of the plug housing portion in which the convex portion is not protruded. A gap is formed between the inner plug and the spherical plug, and the liquid remaining in the inner plug flows down into the container body through the gap.

[Brief description of the drawings]

FIG. 1 is a front view showing an application container using an embodiment of an inner plug of the present invention.

FIG. 2 is a sectional view showing a main part of the coating container.

FIG. 3 is a sectional view showing an inner plug.

FIG. 4 is a sectional view showing a main part of the inner plug.

FIG. 5 is a sectional view showing the operation of the inner plug.

FIG. 6 is a sectional view showing the operation of the inner plug.

FIG. 7 is a perspective view showing a conventional coating container.

FIG. 8 is a sectional view showing a main part of the coating container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 1a Neck 17a Flow hole 18 Lower flow path 18b Coating liquid inflow hole 19 Spherical plug

Claims (2)

[Claims] 1. A hollow inner plug for closing a neck opening of a container main body, wherein an outflow passage through which liquid in the container main body flows out of the container main body is provided in a vertical direction. A stopper body accommodating part for accommodating the body is formed, a liquid outlet hole smaller in diameter than the spherical stopper is provided at an upper part of the stopper body accommodating part, and a liquid inlet hole is provided at a lower part. A spherical plug is arranged to be able to roll freely with the inlet hole,
In a state where the neck of the container body is obliquely downward, the liquid flowing into the plug housing from the liquid inlet hole passes through the space between the spherical plug and the peripheral side wall of the plug housing so as to flow out of the liquid outlet hole. The inner plug characterized in that, when the neck of the container body is directed downward, the spherical plug rolls over the liquid outlet hole to close the liquid outlet hole and stop the outflow of the liquid. 2. A liquid inlet hole having a diameter larger than that of the spherical plug body is formed at a lower portion of the stopper housing portion, and a convex portion is provided inwardly from an inner peripheral surface of the liquid inlet hole to form a container body. 2. The inner plug according to claim 1, wherein the convex portion prevents the spherical plug from dropping when the neck is upward.