JP2520298Y2 - Liquid container stopper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a stopper used for a liquid container such as a pot.

[Conventional technology]

Conventionally, a liquid container such as a pot and a filter cup for a beverage such as coffee or tea are usually separated from each other.

[Problems to be solved by the device]

For this reason, in order to drip coffee or the like into the liquid container, it is necessary to remove the stopper of the liquid container and attach the filter cup to the opening, and when pouring the drip coffee or the like into the cup, use the filter cup. There was an inconvenience that I had to remove it (Issue 1).

When extracting a beverage such as coffee using a filter cup, the extraction concentration is determined by the outflow time due to the opening area of the outlet, so there is no problem for coffee with a high extraction speed, but the extraction speed For the slower ones, the desired concentration could not be obtained with the conventional filter cup (problem 2).

Also, when pouring into the filter cup, a part of it always flows out from the lower mouth, so the amount of hot water poured cannot be known unless the amount of the extract liquid accumulated in the inner container is confirmed. There was a case where the extract overflowed from the container (problem 3).

Furthermore, since the stopper of a liquid container such as a conventional pot can have only two modes, that is, the valve body can be opened and closed, a simple combination of a conventional liquid container and a filter cup, etc., will make it look like a drip. In addition, there is also a problem that it is not easy to create a state in which the discharge passage is closed while the water injection passage from the filter cup to the middle bottle is opened (problem 4).

Then, this invention aims at providing the stopper of the liquid container which solved these problems.

[Means for Solving the Problem and Its Action]

(First Means) Means for solving the above-mentioned “problem 1” is a liquid container which is fitted into an opening portion of a top surface of a container body and which opens and closes a discharge passage communicating with a discharge port provided in the container body. In the stopper,
A bowl-shaped filter section is provided on the top of the stopper body, a water injection channel communicating with the inner container is provided at the bottom of the filter section, and a valve device for closing the water injection channel when discharging the liquid is provided in the water injection channel. It was done.

(Operation) In the stopper having the above-described configuration, the liquid poured into the filtration unit falls into the inner container as it is when the water injection passage is open. If the water injection channel is closed, it will remain trapped until it is opened, and when opened, the filtered liquid will fall into the inner container.

When the container body is tilted to discharge the liquid from the discharge port, the water injection channel is manually or automatically closed, and the liquid is discharged without flowing back into the water injection channel.

(Second Means) One means for solving the above “Problems 2 to 4” is the first means, wherein the valve device is vertically movably fitted to the outer circumference of the lower opening of the filtration section. It has a cylindrical valve body that is inserted and opens and closes the discharge passage, a cam that stabilizes the valve body in at least three upper, middle, and lower positions, and an operating lever for the cam, and is provided on the outer surface of the valve body By the two upper and lower brims,
When the valve body is at a position other than the lower stage, the discharge passage is closed, and when the valve body is at the lower stage position, the discharge passage is opened, and the valve seat provided on the inner diameter surface of the valve body is provided under the filtering portion. The auxiliary valve provided at the mouth is loosely fitted, and the upper and lower two flanges sandwiching the valve seat are provided on the auxiliary valve, and the upper flange of the auxiliary valve comes into contact with the valve seat at the upper position of the valve body. The lower flange of the auxiliary valve is in contact with the valve seat at the lower position of the valve body.

(Operation) In the stopper having the above-mentioned configuration, when the valve body is in the upper stage, the lower flange of the filtering portion is in a closed state because the upper collar of the auxiliary valve contacts the valve seat. In this state, extraction of coffee or the like is performed by the filtration unit. When the operation lever is operated and the valve body is lowered to the middle stage by the action of the cam, the upper flange of the auxiliary valve is separated from the valve seat, the lower opening is opened, and the extraction liquid is dripted to the inner container through the water injection passage. In any of the above states, the discharge passage is closed. When the valve body is lowered further down, the lower flange of the auxiliary valve comes into contact with the valve seat and the lower opening is closed again.
Since the discharge passage is opened, the liquid is discharged when the container body is tilted.

At the time of extraction, the entire amount of the liquid such as coffee is once collected by filtration and then drip into the inner container, so that the liquid exceeding the capacity of the inner container can be avoided.

(Third Means) Another means for solving the above-mentioned “problems 2 to 4” is the same as the first means, but its valve device is vertically movably fitted to the outer circumference of the lower opening of the filtration section. It has a tubular valve body that is inserted and opens and closes the discharge passage, a cam that stabilizes the valve body at two upper and lower positions, and an operating lever for the cam, and is provided with a collar provided on the outer surface of the valve body. It is configured to close the discharge passage at the upper position and open it at the lower position, and to provide a valve portion for opening and closing the lower opening on the bottom surface of the filter screw-fitted to the filtering portion. It is a thing.

(Operation) In the plug having the above-described configuration, the valve body is positioned at the upper stage to close the discharge passage, and the filter is screwed in to close the lower opening by the valve portion. In this state, extraction of coffee or the like is performed by the filtration unit. Then twist the filter backwards to open the lower opening and drip. When the drip is completed, the filter is screwed in again to close the lower opening, and the valve body is moved to the lower stage to open the discharge passage and discharge.

At the time of extraction, the entire amount of the liquid such as coffee temporarily collects in the filtration unit and is then dripted into the inner container, so that the liquid exceeding the capacity of the inner container is prevented from being drip.

(Fourth Means) Another means for solving the above “Problem 4” is the first means, wherein the valve device is vertically movably fitted to the outer periphery of the lower opening of the filtration section. A tubular valve body that opens and closes the discharge passage, a cam that stabilizes the valve body in two upper and lower positions, and an operating lever for the cam, and by a collar provided on the outer surface of the valve body, It is a structure that closes the discharge passage at the upper position and opens it at the lower position, houses a float valve movably up and down inside the water injection passage, and the upper end surface of the float valve is the inner surface of the water injection passage. It is configured to face the provided valve seat.

(Operation) In the stopper having the above structure, when liquid is added to the filter,
The extract is dripted into the medium bottle. The water injection passage is closed by hydraulic pressure or spring force acting on the float valve. When the lever is operated to lower the valve body to the lower stage, the discharge passage is opened.

〔Example〕

The liquid container of the first embodiment shown in FIG. 1 to FIG. 9 stores a middle bottle 2 inside a container body 1 and allows the upper opening 3 of the container body 1 to open the upper end of the middle bottle 2. ing. A female screw 4 is formed on the inner peripheral surface of the upper opening 3, and a plug 5 is removably screwed into the female screw 4.

The plug 5 includes a plug body 6, a valve body 7, a spring retainer 8, a lever 9, a filter cup 10, a filter 11, a lid 12, and a spring 13.

The plug body 6 is provided with a through hole 14 at the center thereof,
Further, a diametric discharge passage 15 communicating with the through hole 14 is provided. The opening end of the discharge passage 15 faces the passage 17 communicating with the discharge port 16. In addition, a seal portion is provided below the discharge passage 15.
An O-ring 19 fitted on the outer diameter surface of the seal portion 18 is pressed against the opening of the shoulder member 20 of the container body 1 to achieve sealing.

Also, at the upper part of the outer end of the discharge passage 15, a male screw is formed on the outer peripheral surface.
The male screw 21 is screwed into the female screw 4. A step portion 22 is provided on the upper portion of the male screw 21, and the step portion 22 covers the upper end surface of the shoulder member 20 at the peripheral edge of the opening 3. Further, the filter cup 10 is forcibly fitted to the cylindrical portion extending upward from the step portion 22.

A cylindrical valve element 7 is inserted into the through hole 14 of the plug body 6 in a vertically movable manner while maintaining watertightness. A lower collar 23 is formed at the lower end of the outer diameter surface of the valve body 7, and an upper collar 24 is formed at an upper portion thereof.
The lower collar 23 projects so as to contact the lower end surface of the seal portion 18, and the upper collar 24 projects so as to contact the lower inner end of the discharge passage 15 (see FIG. 7).

The upper end of the valve body 7 projects above the through hole 14 of the plug body 6, and the engaging collar 26 (third part) formed on the inner diameter surface of the spring retainer 8 is inserted into the groove 25 formed on the outer diameter surface of the protruding portion.
(Refer to the figure), and the valve body 7 and the spring retainer 8 are integrated.

The spring retainer 8 includes an inner cylinder 27 and an outer cylinder 28 integrated therewith.
And a longitudinal guide rib 29 (third
(See FIG. 6, FIG. 6). The guide rib 29 is slidably fitted into a vertical groove 31 (see FIG. 3) on the inner peripheral surface of an annular guide wall 30 provided on the plug body 6. In addition, the engagement collar 26
A spring 13 is interposed between the valve body 6 and the plug body 6, and presses the lower collar 23 of the valve body 7 against the lower end of the seal portion 18. A lever receiver 33 (see FIG. 3) protruding outward is provided at the upper ends of the two guide ribs 29 located at the centrally symmetrical positions of the outer cylinder 28 of the spring retainer 8.

As shown in FIGS. 3 and 5, the lever 9 has a boss portion 34 rotatably fitted to the outer diameter surface of the inner cylinder 27 of the spring retainer 8, and has a center outside the boss portion 34. Cams 35 are formed at two symmetrical points. The cam 35 has an intermediate step portion 36 and a lower step portion 37 on the lower surface in the middle of the cam surface inclined in the same rotation direction around the boss portion 34 (see FIGS. 5 and 9), and the cam surface is the lever described above. Mount on the receiver 33. Also, a knob 38 is provided on the outer end of the lever 9 so as to project, and the knob 38 is inserted into a horizontal slit 39 formed in the stopper body 6,
The lever 9 can be operated from the outside of the stopper body 6.

The filter cup 10 has an inner and outer double wall, and a bowl-shaped filtration section 41 (see FIG. 3) is provided inside.
A cylindrical lower port 42 is provided at the bottom of the filtering section 41, and the lower port is provided.
A central shaft 44 integrated with a cross-shaped rib 43 (see FIG. 4) is provided at the lower end of the, and an auxiliary valve 45 is fitted around the central shaft 44 below the rib 43. The inner diameter surface of the upper end portion of the valve element 7 is inserted into the outer diameter surface of the lower port 42 so as to be slidable vertically while maintaining liquid tightness. An auxiliary valve 45 is loosely fitted to a valve seat 46 (see FIG. 6) formed on the inner diameter surface of the valve body 7, and an upper collar 47 which can contact the upper surface of the valve seat 46 is provided.
A lower flange 48 is formed on the upper end of the auxiliary valve 45 and is formed on the lower end of the valve seat 46.

The gap between the lower port 42 and the rib 43, the gap between the valve seat 46 and the auxiliary valve 45, and the internal passage of the valve body 7 constitute a water injection passage 49 between the filtration portion 41 and the inner bottle 2. Water injection channel 49 is an auxiliary valve
It is opened and closed by the action of 45.

A knob 50 (see FIG. 3) is provided on the outer peripheral wall of the filter cup 10, a cup-shaped filter 11 is removably housed in the filtering section 41, and a lid 12 is fitted on an upper end of the filter cup 10. You.

The liquid container of the first embodiment is as described above, and by operating the knob 38 of the lever 9, the lowest position of the cam surface of the cam 35 as shown in FIG. 6), the spring retainer 8 and the valve body 7 integral with the spring retainer 8 are aligned with the lever receiver 33 as shown in FIG.
Since the pressing restriction by the cam 35 does not work, the spring
It is pushed by 13 to the upper position. Therefore, the upper flange 47 of the auxiliary valve 45 is pressed against the upper surface of the valve seat 46, and the water injection channel 49 is shut off.

Next, by operating the knob 38, as shown in FIG. 9B, the position where the middle step portion 36 is placed on the lever receiver 33 (“drip”).
7), the spring retainer 8 and the valve body 7 integral therewith are pushed down by the cam 35, compressing the spring 13 and descending to the middle position, as shown in FIG. As a result, the upper collar 47 separates from the valve seat 46 to open the water injection passage 49.
As a result, the extract can be dripped into the middle bottle 2.

At this time, the lower collar 23 of the valve element 7 separates from the seal portion 18, but the upper collar 24 of the valve element 7 contacts the lower end of the discharge passage 15, so that the vapor of the liquid dripped into the middle bottle 2 flows out. It is not hindered and the heat retention is not impaired.

When the drip is completed, the knob 38 is operated to the position where the lower part 37 is placed on the lever receiver 33 (the position of “pour”) as shown in FIG. 9C. Then, as shown in FIG. 8, the spring retainer 8 and the valve body 7 integrated therewith
It is pushed down by 35 and further compresses the spring 13 to move to the lower stage. As a result, the lower flange 48 of the auxiliary valve 45 contacts the lower surface of the valve seat 46 to close the water injection passage 49. At the same time, the valve 7
The upper brim 24 separates from the discharge passage 15 and allows the inside of the middle bottle 2 to communicate with the discharge passage 15. Therefore, when the container body 1 is tilted, the liquid in the middle bottle 2 flows out of the discharge port 16 without flowing backward to the water injection passage 49.

Next, a second embodiment shown in FIG. 10 will be described. In this case, the structure of the plug body 6, the valve body 7, the spring retainer 8 and the lever 9 constituting the plug 5 is the same as that of the first embodiment, but the structures of the filter cup 10 and the filter 11 are partially different. There is.

That is, the O-ring 52 mounted on the protrusion 51 at the center of the lower surface of the filter 11 is pressed against the upper end of the lower opening 42 of the filter cup 10. The outer diameter surface of the upper end of the filter 11 is screw-fitted to the inner diameter surface of the filter cup 10, and depending on the degree of fitting, O
Since the height of the ring 52 changes, the water injection channel 49 is opened and closed.

A lid is appropriately fitted on the upper surface of the filter cup 10. In addition, the valve seat provided on the valve body 7 of the first embodiment
46 and the upper brim 24 are not provided in the case of the second embodiment.

The second embodiment is the one as described above. When extracting coffee or the like, the filter 11 is screwed in to inject the water.
Is closed, and the lower collar 23 of the valve element 45 is brought into contact with the seal portion 18. This state is "stop. Dark eyes". The state where the filter 11 is twisted in the opposite direction and the water injection channel 49 is opened is the “drip” state. When the drip is completed, screw in the filter 11 again and lower the O-ring 52.
Press 42 to close water injection channel 49. Further, the lever 9 is operated to move the valve body 7 to the lower stage, and the lower brim 23 thereof is sealed.
Separate from 18 and open the discharge passage 15. This state is the "pouring" state, and when the container body 1 is tilted, the liquid is discharged from the discharge port 16.

Next, in the third embodiment shown in FIG. 11, the filter 11 does not have a function of closing the water injection channel 49, but simply a filter cup.
It is only stored in 10. Inside the valve body 7, a valve seat
46 is formed, and the stopper 53 is fitted on the lower surface of the lower collar 23. A float valve 54 is vertically movably housed in a lower portion of the valve seat 46, and a rib 55 provided on an outer diameter surface of the float valve 54 forms a gap between the float valve 54 and the inner diameter surface of the valve body 7, and the rib 55 is formed.
The stopper hits the stopper 53 to prevent it from coming out. The other structure is the same as that of the second embodiment shown in FIG.

In the case of the third embodiment described above, when the liquid is put into the filter 11, the extracted liquid is in a “drip” state where it falls into the middle bottle 2 through the water injection passage 49. When the amount of liquid in the middle bottle 2 becomes full, the float valve 54 rises as shown by the chain double-dashed line and the water injection channel 49 is closed. Operate lever 9 to "pouring"
In this state, the lower collar 23 of the valve body 7 separates from the seal portion 18. When the container body 1 is tilted for water injection, the float valve 54 is pushed by the liquid and the water injection passage 49 is closed.

As shown in Fig. 12, the water injection channel below the float valve 54
A spring receiving portion 56 integrated with the valve body 7 is provided on the valve 49, and an extremely weak spring 57 that is compressed by the intrusion of drip liquid is attached to the float valve 54.
And the spring receiving portion 56, the valve rod 58 of the float valve 54 is passed through the spring receiving portion 56 to guide the vertical movement, and the float valve 54 is constantly placed on the valve seat 46 'at the lower end of the lower opening 42. If they are pressed against each other, the heat retaining effect of the medium bottle 2 is not impaired.

[Effect of device]

As described above, the device according to claim 1 is provided with the filtering unit provided on the upper part of the stopper body, and the valve unit for closing the water injection channel at the time of discharging the liquid is provided in the water injection channel provided in the filtering unit. When extracting coffee etc., you can drip immediately by putting coffee powder etc. in the filtering part and pouring hot water, and even if the container is tilted after the drip and the extract is discharged, the extract may flow backward. Absent.

According to the second aspect of the invention, since the extraction can be performed with the lower opening of the filtering section closed, the extraction concentration can be freely adjusted, and black tea and mugi tea can be extracted. Further, since the amount of the liquid accumulated in the filtration section is constant, the liquid does not overflow without checking the amount of the liquid accumulated in the inner container.

In the invention according to claim 3, the valve body has only two modes of opening or closing the discharge passage, but the valve portion provided on the bottom surface of the filter allows the water injection passage to be closed, thereby providing a simple structure. You can freely adjust the extraction concentration with. Further, since the discharge passage can be opened and the water injection passage can be closed to discharge the extraction liquid, the liquid in the inner container does not flow backward even if the container body is tilted during the discharge.

Also in the invention as set forth in claim 4, the valve body has only two modes of opening or closing the discharge passage. However, by making the float valve face the water injection passage, the water injection passage can be formed at the time of discharging the extraction liquid with a simple structure. It can be closed to prevent backflow of liquid.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of the first embodiment, FIG. 2 is a sectional view of the same as above, FIG. 3 is an exploded perspective view of a plug portion of the same as above, and FIG. FIG. 5 is a perspective view showing a state in which the same lever is inverted, FIGS. 6 to 8 are sectional views showing a state of use in the same, FIG. 9 is an explanatory view of a positional relationship between a cam and a lever receiver, and FIG. Is a partial sectional view of the second embodiment,
FIG. 11 is a partial sectional view of the third embodiment, and FIG. 12 is a sectional view of a modification of the third embodiment. 1 ... container body, 2 ... middle bottle, 3 ... top opening, 4
... female screw, 5 plug, 6 plug body, 7 valve body, 8
...... Spring retainer, 9 ... Lever, 10 ... Filter cup, 11 ... Filter, 12 ... Lid, 13 ... Spring, 14 ... Through hole, 15 ... Discharge passage, 16 ... Discharge port, 17
... passage, 18 ... seal part, 19 ... O-ring, 20 ... shoulder member, 21 ... male screw, 22 ... step part, 23 ... lower collar, 24 ...
... Upper collar, 25 ... Groove, 26 ... Engagement collar, 27 ... Inner cylinder, 28
... outer cylinder, 29 ... guide rib, 30 ... guide wall, 31 ... vertical groove, 33 ... lever receiver, 34 ... boss, 35 ... cam, 36
… Middle section, 37… Lower section, 38… Knob, 39… Slit, 41… Filtration section, 42… Bottom entrance, 43… Rib, 44…
Central shaft, 45 ... Auxiliary valve, 46, 46 '... Valve seat, 47 ... Upper brim, 48 ... Lower brim, 49 ... Water injection channel, 50 ... Knob, 51 ...
… Protrusion, 52 …… O ring, 53 …… Stopper, 54 …… Float valve, 55 …… Rib, 56 …… Spring holder, 57 …… Spring, 58 …… Valve rod.

Claims (4)

(57) [Scope of utility model registration request] 1. A stopper of a liquid container which is fitted into an opening on the upper surface of a container body and which opens and closes a discharge passage connected to a discharge port provided in the container body, wherein a bowl-shaped filter portion is provided on an upper portion of the stopper body, A stopper for a liquid container, characterized in that a water injection passage communicating with an inner container is provided at the bottom of the filtration portion, and a valve device for closing the water injection passage when the liquid is discharged is provided in the water injection passage. 2. A valve device according to claim 1, wherein the valve device has a tubular valve body that is vertically slidably fitted into an outer periphery of a lower opening of the filtering part to open and close the discharge passage, and the valve body is located at least at three upper, middle, lower positions. And a lever for operating the cam, the upper and lower two flanges provided on the outer diameter surface of the valve body close the discharge passage when the valve body is in a position other than the lower stage, and the valve is closed. When the body is in the lower position, the discharge passage is opened, the valve seat provided on the inner diameter surface of the valve body is loosely fitted with the auxiliary valve provided at the lower port of the filtering section, and the valve seat is attached to the auxiliary valve. Two upper and lower collars sandwiched therebetween are provided, and when the valve body is in the upper position, the upper collar of the auxiliary valve contacts the valve seat, and when the valve body is in the lower position, the lower collar of the auxiliary valve is the valve seat. The stopper of the liquid container according to claim 1, wherein the stopper of the liquid container is configured to come into contact with the stopper. 3. The valve device according to claim 1, wherein the valve device has a cylindrical valve body which is vertically slidably fitted into an outer periphery of a lower opening of the filtering unit to open and close the discharge passage, and stabilizes the valve body at two upper and lower positions. It has a cam and an operating lever for the cam, and has a configuration in which the discharge passage is closed at the upper position and opened at the lower position by the flange provided on the outer surface of the valve body, and the filtering portion is provided. The stopper for a liquid container according to claim 1, wherein a valve portion that opens and closes the lower opening is provided on the bottom surface of the screw-fitted filter. 4. The valve device according to claim 1, wherein the valve device is a cylindrical valve body that is vertically movably fitted into an outer periphery of a lower opening of the filtering portion to open and close the discharge passage, and stabilizes the valve body at two upper and lower positions. The cam has a cam and an operating lever for the cam, and a collar provided on the outer surface of the valve body closes the discharge passage at the upper position and opens the discharge passage at the lower position. 2. A stopper for a liquid container according to claim 1, wherein a float valve is housed therein so as to be vertically movable, and an upper end surface of the float valve is opposed to a valve seat provided on an inner diameter surface of the water injection passage.