JPH0650367Y2 - Fixed-volume dispenser - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a fixed amount which is attached to the mouth tube part of a liquid container and in which a fixed amount of content liquid is poured out by repeating upside down and erecting of the container. Regarding spouts.

[Conventional technology]

A quantitative dispensing device that repeatedly inverts and erects a container to dispense a fixed amount of content liquid is described in Japanese Utility Model Publication No. 58-188851.

As shown in an inverted manner in FIG. 2, the quantitative dispensing device described in this publication has a liquid storage chamber 29 provided between the bottom 8 of the main body 5 fitted to the mouth tube 2 of the container 1 and the partition wall 21. , Bottom 8 to outflow pipe 9
Is erected upward, the outlet 10 at the tip of the outflow pipe 9 is opened in the measuring chamber 12, and the partition 21 has the measuring chamber 12 and the liquid storage chamber 29.
Is a metered-dose dispensing tool in which a flow port 40 for communicating with each other is provided, and a discharge pipe 26 is erected from the partition wall 21 to the upper side outside the main body 5.

In this quantitative dispensing device, when the container 1 is inverted as shown in FIG. 2, the content liquid flows into the measuring chamber 12 through the outflow pipe 9, and the liquid level in the measuring chamber 12 is the tip of the outflow pipe 9. When it reaches the outlet 10, the inflow of air from the measuring chamber 12 into the container 1 is stopped, and the inflow of the content liquid from the container 1 into the measuring chamber 12 is stopped.

Therefore, when the container 1 is erected, the content liquid in the measuring chamber 12 flows into the liquid storage chamber 29 through the flow port 40.

When the container 1 is inverted again, the content liquid in the liquid storage chamber 29 is discharged from the container 1 to the outside of the container 1 and a certain amount of the content liquid can be poured out.

[Problems to be solved by the device]

By the way, generally, a synthetic resin container is used as a container to which this type of quantitative dispensing device is attached.

Then, in order to invert the container 1 which is heavy because the container 1 is filled with the content liquid, it is difficult to carry out by mainly gripping the mouth tube part 2 of the container 1, and gripping the body part of the container 1. Will be done.

Then, the container 1 is turned upside down, the content liquid flows into the measuring chamber 12, the liquid level reaches the outlet 10, and when the air in the measuring chamber 12 stops flowing into the outflow pipe 9, the body of the container 1 When the pressure inside the unit and the pressure of the air above the measuring chamber 12 are the same, the flow of the content liquid from the outflow pipe 9 into the measuring chamber 12 is stopped, and the fixed amount of the content liquid from the measuring chamber 12 is carried out by the following operation. Can be discharged to the outside from the discharge pipe 26 through the liquid storage chamber 29.

However, the container 1 is turned upside down, the content liquid flows into the measuring chamber 12, the liquid level of the measuring chamber 12 reaches the outlet 10, and
When the air cannot flow from 12 through the outflow pipe 9 into the container 1, the body of the container 1 is pinched,
When the pressure in the container 1 is equal to or higher than the atmospheric pressure, the content liquid flows into the measuring chamber 12 until the pressure in the container reaches the atmospheric pressure,
It flows up to 12.

Therefore, the amount of the content liquid poured out in one operation is the content liquid in the measuring chamber 12 and the content liquid flowing into the upper portion of the measuring chamber 12, and the amount of the content liquid is larger than a certain amount, so that the fixed amount can be dispensed. It will not be possible.

The force for gripping and pinching the body of the container 1 also changes depending on the remaining amount of the content liquid in the container 1, which makes it more difficult to perform accurate measurement.

The present invention has been made in view of the above-described matters, and an technical object thereof is to provide a fixed-quantity dispensing tool that can perform accurate weighing and accurate dispensing without being affected by the clamping pressure for gripping a container.

[Means for Solving the Problems]

According to the present invention, the base portion of the main body 5 is provided with the fitting portion 7 which is fitted into the mouth tube portion 2 of the container 1, and the bottom portion 8 and the partition wall 21 are provided at the base portion.
A measuring chamber 12 partitioned by is provided, and a liquid storage chamber is provided above the partition wall 21.
29 is provided, and the outflow pipe 9 is erected upward from the bottom portion 8 of the measuring chamber 12 so that the outflow port 10 at the tip of the outflow pipe 9 is opened in the liquid storage chamber 29 and the flow at the base of the outflow pipe 9 is increased. The inlet 11 is provided so as to communicate with the inside of the container 1, and a distribution pipe 23 is provided so as to extend downward from one side of the peripheral edge of the partition wall 21. A distribution outlet 24 at the tip of the distribution pipe 23 is provided in the measuring chamber. While opening in 12, the flow inlet 23 of the base of the flow pipe 23 is communicated with the liquid storage chamber 29, and the discharge pipe 26 is erected upward from the other side of the peripheral edge of the partition wall 21 for discharge. A discharge port 27 at the tip of the pipe 26 was opened to the outside of the container 1, and a discharge pipe inlet 28 was made to communicate with the inside of the measuring chamber 12 to form a quantitative dispensing device.

[Action]

According to the present invention, when the container 1 is grasped and inverted while the cap 37 is removed, the content liquid flows into the liquid storage chamber 29 through the outflow pipe 9.

When the content liquid flows into the liquid storage chamber 29 through the outflow pipe 9, the air having substantially the same volume as the inflowing content liquid is discharged into the outflow pipe 9.
Through and into the container 1.

When the liquid level in the liquid storage chamber 29 reaches the outflow port 10 of the outflow pipe 9, the outflow port 10 is closed by the liquid and the air from the liquid storage chamber 29 through the outflow pipe 9 into the container 1 is discharged. Inflow stops.

Then, at this time, when the pressure in the outflow port 10 of the outflow pipe 9 of the container 1 becomes equal to the atmospheric pressure (in this case, the liquid storage chamber 29 is at the atmospheric pressure, the inside of the container 1 and the outflow pipe 9 are Since the liquid exists, the pressure of the water in the outlet 10 becomes equal to the atmospheric pressure when the pressure of the air in the container 1 becomes a pressure slightly lower than the atmospheric pressure.) From the container 1 to the liquid storage chamber The content liquid does not flow to 29.

By the way, when the container 1 is inverted, it is easy to hold the body of the container 1 by gripping the body of the container 1. Therefore, the body of the container 1 is often held. Then, the inflow of the content liquid from the container 1 into the liquid reservoir 29 may further strongly clamp the body of the container 1 after the liquid surface of the liquid reservoir 29 reaches the outlet 10.

Then, after the liquid level reaches the outflow port 10, the pressure inside the container 1 is further increased to the atmospheric pressure or higher, and the content liquid is pushed out to the liquid reservoir 29.

Next, when the container 1 is erected, air flows from the measuring chamber 12 into the liquid reservoir chamber 29, and the content liquid in the liquid reservoir chamber 29 flows into the measuring chamber 12 from the flow pipe 23.

At this time, since the container 1 is upright, it is possible to support the container 1 without gripping the body of the container 1, the bottom of the container 1 and the mouth tube portion 2 and the like without deforming the body of the container 1. No pressure is generated in the container 1 by pinching the body of the container 1.

Then, as described above, when the content liquid flows into the measuring chamber 12, the body portion of the container 1 is not gripped and the force for pinching the body portion does not act at the time of measurement, so that the container 1 and the inside of the container 1 are communicated with each other. The inside of the liquid storage chamber 29 communicating with the pipe 9 may be lower than atmospheric pressure, but not higher than atmospheric pressure.

Then, when the liquid surface of the measuring chamber 12 reaches the flow outlet 24 at the tip of the flow pipe 23, air does not flow from the measuring chamber 12 through the flow outlet 24 into the liquid reservoir 29.

As described above, the pressure in the liquid storage chamber 29 is not higher than the pressure in the measuring chamber 12, which is the atmospheric pressure, so that the liquid storage chamber
The content liquid in 29 is not pushed out of the flow pipe 23 into the measuring chamber 12.

Therefore, the liquid level in the measuring chamber 12 is the flow outlet at the tip of the flow pipe 23.
When it reaches 24, the flow of the content liquid into the measuring chamber 12 is stopped, and accurate measurement can be performed.

Next, with the discharge pipe 26 facing downward, the container 1 is tilted upside down so that the content liquid in the measuring chamber 12 flows into the discharge pipe 26, and the content liquid is poured out.

Then, since the flow pipe 23 is provided at one side of the peripheral edge of the partition wall 21 and the discharge pipe 26 is provided at the other side of the peripheral edge of the partition wall 21, the inside of the flow pipe 23 at the time of pouring out the content liquid. Liquid in the measuring chamber 12
It is possible to prevent inaccurate measurement due to mixing of the content liquid which is not measured with the content liquid which has flowed into the chamber and is measured in the measuring chamber 12.

〔Example〕

FIG. 1 shows a metered-dose dispenser according to an embodiment of the present invention, in which a main body 5 screwed into a mouth tube portion 2 of a container 1 by a fitting portion 7 is an upper portion of a lower tube 6. The partition tube 20 is externally fitted and fitted to the above, and the cap body 35 is externally fitted and fitted to the upper portion of the partition tube 20.

A bottom portion 6 which is a base portion of the main body 5 is provided with a bottom portion 8, and a partition wall tube 20 which is provided at a central portion of the main body 5 is provided with a partition wall 21. The weighing portion partitioned by the bottom portion 8 and the partition wall 21 is provided. A chamber 12 is provided, and a liquid storage chamber 29 surrounded by a cap body 35 is provided above the partition wall 21.

An outflow pipe 9 is erected upward from the center of the bottom portion 8 of the measuring chamber 12, and the outflow pipe 9 is fitted into a connecting pipe 22 erected in the center of the partition wall 21. 22 forms an outflow port 10 at the tip of the outflow pipe 9, the outflow port 10 is opened in the liquid storage chamber 29, and the inflow port 11 at the base of the outflow pipe 9 is provided so as to communicate with the container 1. .

A distribution pipe 23 is provided so as to extend downward from one side portion of the partition wall 21 near the periphery, and a distribution outlet 24 at the tip of the distribution pipe 23 is provided.
Is opened in the measuring chamber 12, and the flow inlet 25 at the base of the flow pipe 23 is communicated with the liquid reservoir 29.

Further, a discharge pipe 26 is erected upward from the other side portion on the opposite side of the partition wall 21 near the periphery, and the discharge pipe 26 is fitted in a connection cylinder 36 erected from the cap body 35. This connection tube 36
Forms a discharge port 27 at the tip of the discharge pipe 26, the discharge port 27 is opened outside the main body 5, a cap 37 is fitted, and a discharge pipe inlet 28
Is connected to the measuring chamber 12.

[Effect of device]

The present invention is based on a measuring chamber with a base 8 and a partition 21 at the base.
12 is provided, a liquid storage chamber 29 is provided above the partition wall 21, and a distribution pipe 23 is provided so as to extend downward from one side portion of the peripheral edge of the partition wall 21, and a distribution outlet 24 at the tip of the distribution pipe 23 is provided. While opening in the measuring chamber 12, the flow inlet 25 of the base of the flow pipe 23 communicates with the liquid storage chamber 29, and the discharge pipe from the other side of the peripheral edge of the partition wall 21.
26 is erected upward.

Therefore, according to the present invention, since the container 1 is upright at the time of measurement when the content liquid flows into the measuring chamber 12 through the flow pipe 23,
The container 1 can be easily held without gripping the body, which is easily deformed.

Therefore, at the time of measurement, the pressure generated by pressing the body of the container 1 does not act on the liquid storage chamber 29, and accurate measurement can be performed.

As described above, in the present invention, since the liquid storage chamber 29 is provided in the upper part and the measuring chamber 12 is provided in the lower part, the flow pipe 23 is provided at one side of the peripheral edge of the partition wall 21 and the other side of the peripheral edge is provided. The discharge pipe 26 can be easily installed in the discharge pipe 26, and when the content liquid measured from the measuring chamber 12 is discharged by the discharge pipe 26 by inclining the container 1, the flow pipe 23 is set to the upper side, It is possible to prevent the content liquid from flowing into the measuring chamber 12 and making the content liquid measured in the measuring chamber 12 inaccurate.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional example in an inverted state. 1 ... container, 2 ... mouth cylinder part, 5 ... body, 7 ... fitting part, 8 ... bottom part, 9 ... outflow pipe, 10 ... outflow port, 11 ... inflow port, 12 ... Weighing chamber, 21 ... Partition wall, 23 ... Distribution pipe, 24 ... Distribution outlet, 25 ... Distribution inlet, 26 ... Discharge pipe, 27 ... Discharge port, 28 ...
Discharge pipe inlet, 29 ... Liquid storage chamber.

Claims (1)

[Scope of utility model registration request] 1. A base portion of a main body 5 is provided with a fitting portion 7 which is fitted into a mouth tube portion 2 of a container 1, and a base portion 8 and a partition wall are provided at the base portion.
A measurement chamber 12 partitioned by 21 is provided, a liquid storage chamber 29 is provided above the partition wall 21, and an outflow pipe 9 is erected upward from the bottom portion 8 of the measurement chamber 12 so that the outflow pipe 9 has a tip end portion. The outflow port 10 is opened in the liquid reservoir 29, and the inflow port 11 at the base of the outflow pipe 9 is connected to the container 1.
It is provided so as to communicate with the inside, and a distribution pipe 23 is provided so as to extend downward from one side portion of the peripheral edge of the partition wall 21.
The flow outlet 24 at the tip is opened in the measuring chamber 12, the flow inlet 25 at the base of the flow pipe 23 is communicated with the liquid storage chamber 29, and the discharge pipe 26 is moved upward from the other side of the peripheral edge of the partition wall 21. A fixed amount pouring tool in which the discharge port 27 at the tip of the discharge pipe 26 is opened outside the container 1 and the discharge pipe inlet 28 is communicated with the inside of the measuring chamber 12.