JPH0123971Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a metering discharge plug that is attached to the mouth of a liquid container to pour out a predetermined amount of the liquid contained therein.

[Conventional technology]

BACKGROUND ART Conventionally, as this type of quantitative discharge plug, those shown in FIGS. 5 to 7 have been known.

This quantitative discharge stopper 1 partitions a hollow part of a cylindrical stopper main body 4 fitted into an opening 3 of a container 2 with a partition wall 5 extending from the opening toward the bottom. One of the openings is closed with a top plate 6, and the hollow part of the stopper body 4 is partitioned from a liquid holding chamber 7 on the bottom side by a partition wall 5, and the opening is closed with a top plate 6. It is divided into a chamber 8 and a discharge port 9 which is partitioned by a partition wall 5 and has an open opening. In addition, holes communicating with the measuring chamber 8 are formed on the bottom side and the opening side of the peripheral wall 10 of the stopper body 4, respectively, with the hole on the bottom side having an air port 11 and the hole on the opening side having a liquid The inlet port 12 is defined as an inlet port 12 .

Next, a procedure for dispensing a fixed amount of the liquid contained in the container 2 using the quantitative discharge plug 1 will be explained. First, the 8th
As shown in the figure, when the container 2 is inverted, the liquid content flows into the metering chamber 8 of the metering discharge tap 1 from the liquid inlet 12. The flow of the liquid content into the measuring chamber 8 proceeds smoothly as outside air flows into the container 2 through the air port 11, and when the liquid content that has flowed into the measuring chamber 8 blocks the air port 11, That is, as shown in FIG. 9, when the upper end of the air port 11 and the liquid level a of the inflowing content liquid match, the content measurement chamber 8
The flow into the container is completed, and the liquid content is thereby metered to a predetermined amount. Then, to pour out the content liquid from the container 2, after measuring as described above, the measured content liquid is transferred to the liquid holding chamber 7 by standing the container 2 up again, and then this transferred content liquid is poured out from the container 2. This is done by inverting the container 2 from the direction in which the discharge port 9 side of the metering discharge plug 1 is located below the metering chamber 8 and discharging from the discharge port 9 .

[The problem that the idea attempts to solve]

In the case of the conventional quantitative discharge valve 1 as described above,
When measuring the content liquid by flowing it into the measuring chamber 8, if the container 2 is in an incomplete inverted state (tilted state) as shown in FIG. is higher than the liquid level a (indicated by the two-dot chain line in Figure 10) when the container 2 is completely inverted, resulting in a measurement error corresponding to the volume of the part shown by c in Figure 10. There was an inconvenience. For this reason, the conventional quantitative discharge stopper 1 has a problem in that errors in measuring the liquid content occur due to the inclination of the container during metering and how the customer handles the liquid, resulting in poor accuracy in the amount of liquid dispensed.

This invention was made in view of the above circumstances, and the purpose is to provide a quantitative discharge stopper that can accurately measure the amount of liquid to be poured out, even if there are differences in the way the container is tilted when measuring the liquid. shall be.

[Means to solve the problem]

In the metering discharge plug of the present invention, the air port is set at a position where the area of the cross section of the metering chamber is approximately divided into two by an imaginary line passing through the air port and parallel to the partition wall. We tried to solve the problem.

[Effect]

In the case of a quantitative discharge tap with such a structure, even if the content is measured with the container not fully inverted (tilted), the liquid level at that time will be the same as that of the completely inverted liquid. Compared to the surface, it decreases on one side sandwiching the air port, and increases on the other side, and the decreased volume on one side is approximately equal to the increased volume on the other side. Therefore, in the quantitative discharge stopper of the present invention, the amount of liquid contained in the metering chamber, that is, the amount of liquid to be measured, does not change when the container is inverted during metering.

〔Example〕

Hereinafter, means for solving the above problems will be explained in detail with reference to examples.

Figures 1 to 3 show an embodiment of the quantitative discharge plug of this invention, and the same components as the conventional quantitative discharge valve 1 shown in Figures 5 to 7 are given the same reference numerals. to simplify the explanation.

In FIGS. 1 to 3, reference numeral 20 is a metering discharge plug. Air port 21 of this quantitative discharge plug 20
As shown in FIG.
When the cross section of the measuring chamber 8 is divided, the areas S1 and S2 of the divided parts are almost equal (S1≒
S2).

In addition, the air port 21 of the quantitative discharge plug 20 is connected to the container 2.
The size must be large enough to provide an effective air circulation area when rotating the device from an upright position to an inverted position to measure the liquid content. , is bored so that its center line is parallel to the center line of the liquid inlet 12.

In the quantitative discharge plug 20 having such a structure,
The position of the air port 21 is such that an imaginary line d passing through the air port 21 and parallel to the partition wall 5 approximately divides the area of the cross section of the measuring chamber 8 into two, so that the container 2 Incompletely tilted state (tilted state)
Even if the content liquid is measured at , the liquid level e at that time is
Compared to the liquid level f in a completely inverted state (shown by the two-dot chain line in Fig. 4), it decreases on one side sandwiching the air port 21 and rises on the other side, and the one side decreases. The volume V1 of and the increased volume V of the other side
2 is approximately equal (V1≈V2). Therefore, in the quantitative discharge plug 20 of this example, the amount of liquid contained in the measuring chamber 8, that is, the amount of the liquid to be measured, does not change when the container 2 is in an inverted state during measurement.
The quantitative discharge plug 20 has better metering accuracy.

[Effect of idea]

As explained above, in the quantitative discharge plug of this invention, the air port that determines the amount of liquid to be measured passes through the air port, and an imaginary line parallel to the partition wall divides the cross-sectional area of the measuring chamber into approximately two halves. Since the container is located at a certain position, the amount of liquid content to be measured and dispensed is not affected by the inverted state of the container at the time of measurement. Therefore,
This quantitative discharge stopper does not cause any difference in the measurement of the liquid content even if the customer handles it differently, and allows for more accurate dispensing of the liquid content.
It has various advantages.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the quantitative discharge plug of this invention, Fig. 2 is a sectional view taken along the line - in Fig. 1, and Fig. 3 shows the state in which the fixed quantity discharge plug is attached to a container. 4 is an explanatory diagram for explaining the function of the quantitative discharge plug of this invention, FIG. 5 is a front view showing a conventional quantitative discharge valve, FIG. 6 is a plan view of the same, and FIG.
The figure is a sectional view showing the state in which the fixed quantity discharge stopper is attached to the container, Figure 8 is an explanatory diagram for explaining the metering state of the fixed quantity discharge stopper, and Figures 9 and 10 are respectively of the conventional fixed quantity discharge stopper. It is an explanatory diagram for explaining a problem. 2... Container, 3... Mouth, 4... Stopper body, 5...
...Partition wall, 6...Top plate, 7...Liquid holding chamber, 8...Measuring chamber, 9...Discharge port, 10...Peripheral wall, 12...
Liquid inlet, 20... quantitative discharge plug, 21... air port, d... virtual line.

Claims (1)

[Claims for Utility Model Registration] The hollow part of the stopper body, which is a hollow body with a bottom and is fitted into the mouth of a container, is partitioned by a partition wall extending from the opening toward the bottom, and the opening of the stopper main body is partitioned by the partition wall. By closing one side with the top plate, in the hollow part of the stopper body, there is a liquid holding chamber on the bottom side, a measuring chamber partitioned by a partition wall with an open opening, and a measuring chamber partitioned by a partition wall with an open opening. At the same time, holes communicating with the measuring chamber are formed on the bottom side and the opening side of the peripheral wall of the stopper body, respectively, so that the bottom side is an air port and the opening side is a liquid inlet. A metering discharge stopper in which the operation of dispensing the liquid content is performed by rotating the container in a direction in which the outlet portion is below the metering chamber, wherein the air port is . A metering discharge plug, characterized in that it is provided at a position where the cross-sectional area of the metering chamber is approximately divided into two by an imaginary line that passes through the air port and is parallel to the partition wall.