JP2532261Y2 - 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]

2. Description of the Related Art Conventionally, a liquid container such as a pot and a filter cup for beverages such as coffee and tea are usually separated from each other.

Therefore, in order to drip coffee etc. into the liquid container, remove the stopper of the liquid container, attach a filter cup to its opening, and remove the filter cup when pouring drip coffee etc. into the cup. I was going.

[Problems to be solved by the invention]

Integrate a filter cup to extract and drip coffee etc. into the stopper of the liquid container such as a pot, extract,
If a valve device that switches the water injection passage to the discharge passage according to each stage of water injection and discharge is provided, if the degree of opening of the water injection passage during drip is constant, the drip speed will be constant, and the concentration of the liquid will be reduced. There is an inconvenience that it becomes constant and cannot be adjusted to the desired concentration.

Therefore, an object of the present invention is to make it possible to adjust the degree of opening of the water injection passage so that a desired concentration can be obtained.

[Means for solving the problem]

Means for achieving the above object are a bowl-shaped filtration unit provided at the upper part of the stopper main body, and a vertically-movably fitted outer periphery of the lower opening of the filtration unit, and a discharge passage for the entire stopper. A cylindrical valve body that opens and closes, a cam having a step portion for stabilizing the valve body at upper, middle, and lower positions, and an operation lever of the cam; The upper and lower collars provided at the upper and lower sides close the discharge passage when the valve body is in the upper position and the middle predetermined position, and open the discharge passage when the valve body is in the lower position. An auxiliary valve provided at the lower opening of the filtering section is loosely fitted to a valve seat provided on the inner diameter surface of the valve body, and the auxiliary valve is provided with two upper and lower flanges sandwiching the valve seat. When the upper collar of the auxiliary valve contacts the valve seat when in the upper position, and when the valve body is in the lower position. In the stopper of a liquid container configured such that the lower collar of the auxiliary valve is in contact with the valve seat, the plurality of middle stages are formed so as to be gradually lower toward the lower stage between the upper stage and the lower stage. The outer diameter surface between the upper and lower two flanges is formed in a tapered shape so that the gap between the valve seat and the tapered outer diameter surface can be adjusted.

[Action]

In the plug with the above configuration, when the valve body is at the upper stage, the upper flange of the auxiliary valve comes into contact with the valve seat, so that the lower port of the filtration unit is closed. When the operation lever is operated from this state and the valve body is lowered to the middle part by the action of the cam, the upper flange of the auxiliary valve is separated from the valve seat, so that the lower opening is opened, and the extract is dripped into the inner container through the water injection passage. be able to. At this time, by finely operating the operation lever to fit into any of the plurality of steps of the cam middle step, appropriately adjusting the gap between the valve seat and the auxiliary valve outer diameter surface, and changing the drip speed, A liquid having a desired extraction concentration can be obtained.

When the valve body is lowered to the lower stage, the lower port is closed again, but since the discharge passage is opened, the liquid is discharged when the container body is tilted.

[Embodiment] The liquid container of the embodiment shown in FIGS. 1 to 10 accommodates a middle bottle 2 inside a container body 1 and inserts the upper end of the middle bottle 2 into an upper opening 3 of the container body 1. It is open.
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 open end of the discharge passage 15 faces a 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.

In addition, a male screw is attached to the outer peripheral
The male screw 21 is screwed into the female screw 4. A step 22 is provided on the upper portion of the male screw 21, and the step 22 covers the upper end surface of the shoulder member 20 at the periphery 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 valve body 7 has an upper end protruding above the through hole 14 of the plug body 6, and an engagement collar 26 (third) formed on the inner diameter surface of the spring retainer 8 in a 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 end of the two guide ribs 29 located at the center symmetric position 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 a middle portion 36 composed of a plurality of steps and a lower portion 37 on the lower surface in the middle of the cam surface inclined in the same rotational direction around the boss portion 34 (see FIGS. 5 and 9). The surface rests on the lever receiver 33 described above. A knob 38 is provided on the outer end of the lever 9 to protrude therefrom.
The knob 38 is inserted into a horizontal slit 39 formed in the plug body 6 so that the lever 9 can be operated from outside the plug body 6. Each section of the above middle section 36 is the lower section
It is formed in a plurality of steps so as to gradually lower toward 37.

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 collar 48 is formed at the lower end of the auxiliary valve 45 and is formed at the upper end of the auxiliary valve 45 and can contact the lower surface of the valve seat 46.

The outer diameter surface between the upper collar 47 and the lower collar 48 of the auxiliary valve 45 is formed in a taper shape having the largest diameter at a portion in contact with the upper collar 47.

The gap between the lower opening 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 unit 41 and the middle 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 embodiment is as described above. By operating the knob 38 of the lever 9, the lowest position of the cam surface of the cam 35 ("stop", "dark eyes") as shown in FIG. 6), as shown in FIG. 6, when the spring holder 8 and the valve body 7 integrated therewith are
Since the push-down control by 35 does not work, it is pushed by the spring 13 to the upper position. For this reason, the upper collar of the auxiliary valve 45
47 is pressed against the upper surface of the valve seat 46 and shuts off the water injection passage 49.

Next, the user operates the knob 38 to move the knob 38 to the position where the middle portion 36 is placed on the lever receiver 33 ("drip") as shown in FIG. 9 (b).
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 lever 9 is operated to move the lever receiver 36 so as to be placed on any one of the stages of the middle stage 36, the position of the auxiliary valve 45 changes according to the height of the stage. Valve 45
The gap between the outer diameter surface and the outer diameter surface changes. As a result, the drip speed changes and the concentration of the liquid changes.

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 collar 24 is separated from the discharge passage 15 to allow 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.

[Effect of the invention]

As described above, this invention forms the middle part of the cam operated by the operating lever by a plurality of steps that gradually become lower toward the lower part, and the outside of the valve that is loosely fitted to the inner diameter surface of the valve seat of the water injection passage. Because the diameter surface is tapered, when drip,
By appropriately adjusting the degree of opening of the water injection channel, the drip liquid can be selected to a desired concentration.

[Brief description of the drawings]

1 is an exploded perspective view of the first embodiment, FIG. 2 is a cross-sectional view of the same, FIG. 3 is an exploded perspective view of a plug part of the same, FIG. Fig. 5 is a perspective view of the same lever in an inverted state, Figs. 6 to 8 are cross-sectional views of the same as above in use, Fig. 9 is an explanatory view of a positional relationship between a cam and a lever receiver, Figs. 2 is a partially enlarged sectional view of the same. 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… Valve seat, 47… Upper collar, 48
…… lower brim, 49 …… irrigation channel, 50 …… knob.

Claims (1)

(57) [Scope of request for utility model registration] 1. A bowl-shaped filtering portion provided at an upper portion of a plug body, and a cylindrical valve which is inserted into the outer periphery of a lower opening of the filtering portion so as to be vertically movable and opens and closes a discharge passage of the plug body. Body, a cam having a step portion for stabilizing the valve body at an upper stage, a middle stage comprising a plurality of stages, and a lower stage, and an operating lever of the cam, and two upper and lower plates provided on the outer diameter surface of the valve body When the valve body is at the upper position and the middle predetermined position, the discharge passage is closed, and when the valve body is at the lower position, the discharge passage is opened. The auxiliary valve provided at the lower opening of the filtration section is loosely fitted to the valve seat provided on the inner diameter surface, and two upper and lower flanges sandwiching the valve seat are provided on the auxiliary valve, and the valve body is at the upper position. When the upper collar of the auxiliary valve comes into contact with the valve seat and the lower body of the auxiliary valve is in the lower position, In the stopper of the liquid container configured to be in contact with the valve seat, the plurality of middle stages are formed so as to be gradually lower between the upper stage and the lower stage toward the lower stage, and the upper and lower collars of the auxiliary valve are formed. 3. A stopper for a liquid container, wherein an outer diameter surface of the liquid container is formed in a tapered shape so that a gap between the valve seat and the tapered outer diameter surface can be adjusted.