JPH0513740Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a cap that is attached to the opening of a container and is used for discharging a fixed amount of the contents of the container through a simple operation.

<Prior art> Conventionally, for example, there are containers containing a liquid such as mouthwash, in which the liquid is poured into a removed cap and measured, and the cap is used in place of a cup. In this case, since the measurement accuracy is not very good, it is conceivable to attach a metering stopper to the opening of the container as shown in Japanese Utility Model Application No. 58-101133.

As shown in FIG.
and an annular stopper 3 connected to the lower end of the cylindrical wall 31.
2, a front lid part 34 movable within the cylinder wall 31, a flange 35 at the other end provided below the front lid part 34, an annular convex part 36 at a specific position, and a small hole 37 between them. A movable part 39 consisting of a conduit 38 having a
It is a metering stopper with a rear plate 40 movably attached between the collar 35 and the annular convex portion 36 of the conduit 38.

<Problems to be solved by the invention> When the above-mentioned metering stopper is discharging the contents, the fixing part 33
The inlet e formed by the periphery of the annular stopper 32
The rear plate 40 is closed. By the way, in order to make the front lid part 34 movable within the cylinder wall 31, a gap is provided between the front lid part 34 and the cylinder wall 31, and due to this gap, when the container is tilted during discharge, the conduit 38 is inclined from the center line of the metering stopper, thereby causing the rear plate 4 to
There is a problem in that the inlet e is tilted and cannot completely close the inlet e.

Another problem is that when the cap is reattached to the opening of the container after use, the remaining liquid inside the cap runs down the inner surface of the side wall of the cap, causing dripping.

<Means for Solving the Problems> The present invention was made to solve the above problems, and includes a cap mounting part and a container mounting part that are connected to the outer periphery of the cylinder wall via a connecting part. A fixed part having an annular stopper connected to the lower end of the cylindrical wall and an inlet formed by the periphery of the annular stopper, an overcap attached to the cap attachment part of the fixed part, and a front part having an opening in the center. A movable part comprising an auxiliary wall provided at the peripheral edge of a plate and a front cover part movable within the cylinder wall, and a conduit provided below from the front plate opening of the front cover part; A metering cap comprising a rear plug body connected to the lower end of the conduit, the rear plug body having a tapered skirt wall and swingably connected to the conduit, and the overcap having a tapered skirt wall. is a metering cap, characterized in that it is mounted so that the outer surface of its side wall is in contact with the inner surface of the cap mounting portion.

<Function> When the metering cap of the present invention is attached to the opening of the container using its container attachment part, first the overcap is removed, and the container is tilted to inject the liquid content into the overcap, the front lid opens. The contents enter the metering chamber formed by the front lid, the cylindrical wall, and the annular stopper through the inlet. The front lid part continues to move forward, and the rear stopper body connected to the lower end of the conduit also moves together with the front lid part and comes into contact with the annular stopper, so that the measuring chamber is completely isolated from the inside of the container and the inside of the measuring chamber is completely cut off. The contents are expelled.

At this time, the rear plug portion reliably and smoothly closes the inlet by appropriately swinging relative to the conduit and being guided by its tapered skirt wall.

Also, return the container to its original vertical position, and
When the conduit and rear plug body are returned to their original positions and the used overcap is attached to the cap attachment part of the fixed part, the outer surface of the side wall of the overcap will come into contact with the inner surface of the cap attachment part, and the overcap will remain inside the overcap. The liquid inside may leak outside.

<Examples> Next, the present invention will be described in detail using examples shown in the drawings.

The metering cap A of the present invention, as shown in FIG.

The fixing part 1 has a fitting wall 6 fixed to the container B and a discharge port a on one cylindrical wall 5 leading from the inside of the container B to the outside.
An annular stopper 8 is provided at the lower end of the cylindrical wall 5 inside the container B, and a guide plate 9 is provided at the lower end. An inlet b is formed.

Furthermore, a cap mounting wall 11 and a container mounting wall 12 for mounting to the opening of the container B are integrally provided on the outside of the cylindrical wall 5 via a connecting portion 10. 1
2 have screws m and n on their inner surfaces, and a rib 13 is provided approximately at the center of the lower side of the connecting portion 10 to abut against the upper end of the neck of the container B to improve sealing performance. .

Further, below the container mounting wall 12, there is a recess 15 that fits into a protrusion 14 provided below the neck of the container B to prevent the container B from loosening.

The overcap 2 is attached to the cap mounting wall 11 of the fixed part 1, and is attached to the top wall 1.
A side wall 17 is provided below the periphery of the cap mounting wall 6, and a screw m' is provided on the outer periphery of the side wall 17 to be engaged with a screw m provided on the inner surface of the cap mounting wall 11. Also,
Above the screw m', there is a protrusion 1 which comes into contact with the upper end of the cap mounting wall 11 of the fixing part 1 to improve the sealing performance when the overcap 2 is attached to the fixing part 11.
8, and an inner wall 19 that comes into contact with the inner surface of the cylindrical wall 5 is integrally provided on the inner surface of the top wall 16. In the movable part 3, a conduit 21 having a downwardly tapered shape is provided below a front lid part 20 that moves within the cylinder wall 5, and the front lid part 20 is attached to the circumferential edge of the front plate 22. The front plate 23 has a continuous wall 23 in which a through hole 24 inside the continuous conduit 21 is provided in the center of the front plate 23.
It has an inlet c which is an opening that communicates with the inlet, and a small hole x for air intake is formed in a part of the inlet. The rear plug body part 4 is swingably connected to the lower end of the conduit 21 of the movable part 3, and specifically,
A stopper part 25 is provided at the lower end of the stopper part 1, and two opposing grooves 26 are formed on the lower end side of the stopper part 25 so that the stopper part 25 can be opened easily. On the other hand, the rear plug body portion 4 includes a spherical locking portion 27 that is locked inside the stopper portion 25;
7, a cylindrical neck portion 28 having a dimension longer than the thickness of the stopper portion 25, a skirt wall 29 having a conical outer shape below the neck portion 28, and an annular shape extending horizontally from the lower end of the skirt wall 29. A flange portion 30 is extended. In addition, the movable part 3
There is a hole y below the conduit 21 that allows air to enter and exit.
is provided, and in the case of this embodiment, the dividing groove 26
Although the locking portion 27 is provided continuously, the reason for this is to make it easier to insert the locking portion 27, and it may be formed separately.

Next, the method of assembling this metering cap A is to insert the movable part 3 from above the fixed part 1, and insert the rear plug body part 4 using the groove 26 where the conduit 21 comes out from below. Then, the locking part 27 is positioned above the stopper part 25 and connected, and the overcap 2 is attached to the cap mounting wall 1 of the fixing part 1.
This is possible by screwing it into 1.

Next, the operating state of each part of the present invention during discharging will be explained. First, the overcap 2 is removed from the fixing part 1, and the opening of the container B is tilted toward the overcap 2, which serves as a cup. The front lid part 20 advances toward the opening, and the front lid part 2
0, the contents enter the measuring chamber d surrounded by the cylindrical wall 5 and the annular stopper 8 through the inflow port b,
When the front lid part 20 moves forward, the volume inside the container B increases by the volume of the measuring chamber d, so that the inside of the container B becomes depressurized. y and enters into the container B, and the atmospheric pressure inside the container B returns to normal pressure, so the front lid part 20 moves forward continuously. When the front lid part 20 moves further forward and the discharge port a and the metering chamber d communicate with each other as shown in FIG. While being guided by 29, flange 30
comes into contact with the annular stopper 8 and closes the inlet b.
At this time, the measuring chamber d is completely cut off from the inside of the container B,
The contents in the metering chamber d are discharged through the discharge port a. When the container B is returned to its original vertical position, the air inside the container B is discharged to the outside through the small hole x in the front plate 22, and the movable part 2 is guided by the guide plate 9 and quickly returns to its original lowest position. Then, the overcap 2 after use is screwed onto the cap mounting wall 11 of the fixing part 1 and mounted again. At this time, the inner wall 19 of the overcap 2 and the upper end of the cylindrical wall 5 of the fixed part 1 and the protruding piece 18 of the overcap 2 and the upper end of the cap mounting wall 11 are brought into close contact with each other, and the overcap 2
The liquid remaining inside will not leak outside.

At the time of such a discharge operation, it is necessary for the liquid content in the measuring chamber d to be discharged quickly from the viewpoint of liquid shortage, and this metering stopper is equipped with this function, and as described above Suction port c, conduction hole 24, hole y
is fulfilling its role. That is, the hole y through which air was sucked into the container B while the movable part 3 was moving forward was located in the measuring chamber d, which was blocked off in the container B by the rear stopper body 4, as shown in FIG. From this point on, this hole y
The liquid content can be quickly discharged without lowering the atmospheric pressure in the metering chamber d by sucking in air from the metering chamber d.

Here, the forward movement of the front lid part 20 opens the metering chamber d and the inlet b of the rear plug body part 4.
Closing and switching the supply of air from the hole y into the container B to the metering chamber d are instantaneously performed, and the discharge is quick and the liquid drains easily.

In addition, the metering stopper of the present invention has a fixed part 1 as described above.
When the movable part 3 moves within the cylindrical wall 5 and the discharge port a is located above as shown in FIG. To position. Therefore, a gap of 0.1 to 0.3 mm is provided between the inner diameter of the cylinder wall 5 and the outer diameter of the auxiliary wall 23 so that the movable part 3 can move naturally by gravity. It's big and good. However, once the content liquid adheres to this gap, resistance is generated in the movable part 3 due to the tension of the liquid, and the movement becomes slow, which is advantageous. In other words, when the container B is tilted further from horizontal as shown in Fig. 2 in order to drain the liquid inside the container B, the movable part 3 moves on its own, ignoring the movement of the liquid inside the container B. This means you should not do it. The reason for this is to prevent air from being drawn into the measuring chamber d surrounded by the cylindrical wall 5, the front lid 20, and the annular stopper 8, and the front lid 20 is connected to the annular stopper 8 and the conduit 21. Inlet b formed between
This is why it moves forward from a position where it is in contact with. If air is drawn into the measuring chamber d, the discharge amount will not be stable.For example, if a cylindrical measuring chamber has an inlet and an outlet on the side, air will be easily drawn in. The plug body A is particularly improved in this respect, and the volume of the measuring chamber d gradually increases as the content liquid flows in, and when it reaches its maximum volume, the rear plug body part 4 blocks the inflow port b. It has a unique structure.

In addition, when the front lid part 20 is laid down due to the gap between the cylindrical wall 5 and the auxiliary wall 23, the conduit 21 is tilted from the center line of the metering stopper A, and the movable part 3 is moved from the auxiliary wall. 23 and the cylindrical wall 5, it cannot move forward freely, and only when the liquid inside pushes the front plate 22 uniformly through the inlet b, does the movable part 3 return to the center of the metering stopper A. It will move smoothly. Therefore, the material of the movable part 3 is not preferably a metal with a heavy specific gravity, but a synthetic resin or the like having a specific gravity close to that of the liquid content is preferable. Further, the outer wall 7 forming the discharge port a of the fixed part 1 is designed to face forward so that the liquid content discharged from the discharge port a does not scatter in all directions.

Furthermore, the reason why the movable part 3 and the rear plug part 4 are connected in a swinging state is so that even when the conduit 21 is tilted from the center line, it can be accurately plugged with the flange part 30. The reason for providing the conical skirt wall 29 is to enable guidance to that position. The fitting wall 6 of the fixed part 1 is
Since it is fitted into the opening of the container B, if the cylindrical wall 5 deforms due to this, it is necessary to make the gap between the cylindrical wall 5 and the front lid part 20 even larger. In this case, the front lid part 20 moves forward faster due to the pressure of the content liquid than the movement of the content liquid, so even if this gap is made large, liquid leakage will not be a problem. In addition, if the inner end of the container B of the conduit 21 is deviated from the center line of the metering stopper A due to the gap between the inner diameter of the cylinder wall 5 and the outer diameter of the auxiliary wall 23 of the front lid part 20 and is tilted too much, the auxiliary wall 23 It can be adjusted by raising it.

<Effects of the invention> The metering cap of the present invention has a structure in which a movable part moves within the cylinder wall while measuring the liquid content, and the size of the metering cap itself is extremely small despite the metering chamber metering method. It is extremely practical, as it is small in size, allows a fixed amount to be discharged by simply tilting the container, and can be used as a content liquid, from water to highly viscous liquids such as laundry detergent.

In addition, when discharging a fixed amount, the rear stopper that closes the inlet below the fixed part has a swinging property with respect to the conduit and a tapered skirt wall to reliably isolate the metering chamber from the inside of the container, preventing liquid leaks, etc. There is no need to worry, and weighing accuracy will improve.

Further, when the overcap is attached to the fixed part, the outer surface of the side wall of the overcap is located inside the cap attachment part, so there is no risk of the liquid content remaining in the overcap after use leaking out.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, FIG. 1 is a partially cutaway explanatory view thereof, FIG. 2 is an explanatory view when in use, and FIG. 3 is a cross-sectional explanatory view showing a conventional metering stopper. A...Quantitative cap, B...Container, 1...Fixed part, 2...Overcap, 3...Movable part, 4
... Rear plug body part, 5 ... Cylinder wall, 6 ... Fitting wall, 7 ...
... Outer wall, 8 ... Annular stopper, 9 ... Guide plate, 10 ... Connection section, 11 ... Cap mounting wall,
12...Mounting wall, 13...Rib, 14...Protrusion, 15...Recess, 16...Top wall, 17...Side wall, 18...Protrusion piece, 19...Inner wall, 20...Front lid part , 21... conduit, 22... front plate, 23... auxiliary wall, 24... conduction hole, 25... stopper part,
26... split groove, 27... locking part, 28... neck part,
29...Skirt wall, 30...Flange part.

Claims (1)

[Scope of utility model registration request] A fixing part comprising a cap mounting part and a container mounting part connected to the outer periphery of a cylindrical wall via a connecting part, an annular stopper connected to the lower end of the cylindrical wall, and an inlet formed by the periphery of the annular stopper. an overcap attached to the cap attachment part of the fixed part; a front lid part which is made up of a front plate having an opening in the center and an auxiliary wall provided at the periphery thereof and is movable within the cylinder wall; A metering cap consisting of a movable part consisting of a conduit placed below the front plate opening of the lid part, and a rear plug part connected to the lower end of the conduit of the movable part, the rear plug part having a tapered shape. The overcap has a shaped skirt wall and is swingably connected to the conduit, and the overcap is attached so that the outer surface of the side wall is in contact with the inner surface of the cap attachment part. Cap.