JPH0238209B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air pot that pressurizes and discharges liquid within a container using a pump mechanism.

Generally, as is well known, in a conventional air pot, a lid having a built-in pump mechanism such as an air pump is provided on the open upper surface of a container made of a double glass bottle so as to close the opening. This lid body consists of an inner lid and an outer lid rotatably connected to the inner lid, and a water supply port for injecting liquid into the container is formed in the inner lid. A plug is removably fitted into this water supply port. This stopper is provided with a through hole that communicates the pump mechanism with the housing. Further, the stopper holds a pouring passage constituted by a lower conduit whose lower end faces the bottom of the housing body, and an upper conduit whose one end is connected to the upper end of the lower conduit via a check valve mechanism. By operating the pump mechanism to pressurize the liquid level within the container, the liquid is discharged from the other end of the upper conduit via the lower conduit and the check valve mechanism.

By the way, in an air pot with such a configuration, it is necessary to remove the stopper from the water supply port each time liquid is injected into the container, but when attaching or removing the above-mentioned stopper, it is necessary to insert the spout passage held by this stopper into the container. It may hit the surface or other parts. As a result, the parts held by the plugs of the upper and lower conduits that make up the dispensing channel may become loose and loose, or the connection between the upper and lower conduits via the check valve may become poor, causing liquid to leak out from the connection. may leak. Furthermore, if the container is a glass bottle and the pouring path is made of metal, the container may be damaged when the pouring path hits the container.

Further, the container made of a double glass bottle has its upper part narrowed to a small diameter, and a stopper is removably fitted into this small diameter part. Therefore, since the opening at the top of the container is very narrow, it is not only difficult to clean the inside of the container, but also it is difficult to supply water and dispose of residual hot water.

The present invention was made based on the above circumstances, and
The purpose of this is to eliminate the possibility of damaging the container or the pouring path by hitting the spouting channel against the container when injecting liquid into the container, and to make the top opening of the container wide. Particularly, it is an object of the present invention to provide an air pot that allows cleaning, water supply, and disposal of residual hot water inside the container with ease.

Hereinafter, one embodiment of the present invention will be described based on the drawings. In the figure, reference numeral 1 denotes a main body composed of a bottomed cylindrical casing 1a with an open upper surface and a container 8 to be described later. On the top of this case 1a, there is a middle frame 2.
is provided. A water supply opening 3 is formed in the middle frame 2, and a stopper 4 is detachably fitted into the water supply opening 3 via a packing 5. A retaining plate 6 is horizontally provided on the inner bottom of the case 1a by a pair of retaining members 7, 7, and the retaining plate 6 has a smaller diameter than the case 1a, an open top surface, and a height. A cylindrical metallic container 8 with a bottom, which is formed to have substantially the same diameter over the entire length in the direction, is placed with its bottom surfaces joined together. A flange 9 is formed on the upper edge of the container 8, and the flange 9 is airtightly fitted into a groove 10 formed around the lower surface of the middle frame 2 through a packing 11, and is fitted into a presser member 11a.
is held in Further, a heater 12 is attached to the lower outer peripheral surface of the container 8. This heater 12 includes a heating coil 13 and a heat retention coil 14.
are electrically connected in parallel and built-in,
These coils 13 and 14 are switched and controlled by a temperature controller 14a connected to the outer bottom surface of the container 3. The heater 12 is connected to the temperature controller 14 in a magnetic plug receiver 15 provided at the lower part of the circumferential surface of the case 1a.
They are electrically connected via a. A plug 16 is connected to the magnetic plug receiver 15 by magnetic force. This plug 16 is connected via a power cord 17 (not shown). Therefore, if a foot is accidentally caught on this cord 17, the plug 16 will easily come off from the magnetic plug receiver 15, and the main body 1 will not fall. Furthermore, case 1
A heat insulating material 18 is filled between the inner circumferential surface of a and the outer circumferential surface of the container 8.

On the other hand, an outer cover 19 constituting a cover covering the opening of the container 8 is rotatably connected to the middle frame 2 by a shaft 20a. This outer cover 19 and the above-mentioned middle frame 2
Projections 19a and 2a are formed on each of these parts. The protrusion 19a of the outer cover 19 includes a holding mechanism that engages with a locking part (not shown) protruding from the protrusion 2a of the inner frame 2 and holds the outer cover 19 unrotatably. The outer cover 19 can be opened by pressing and rotating the hook 20 in the direction of the arrow to disengage it from the locking part. It's becoming like that. In addition, the middle frame 2 has a large diameter portion 22a as shown in FIG.
A connecting port 22 is formed with a narrow diameter portion 22b and a conduit 23 whose lower end faces the inner bottom of the container 8 is connected to the narrow diameter portion 22b of the connecting port 22. The conduit 23 communicates with an outlet path 24 formed on the upper surface of the inner frame 2 through the connection port 22 and which together with the conduit 23 constitute a pouring path. The leading end of the lead-out path 24 is opened downward from the protrusion 2a of the middle frame 2. In addition, the connection port 2
A plurality of blades 22c...
A cylindrical closure 25 is provided with its lower end in contact with these blades 22c so as to be movable up and down to form a check valve mechanism. It moves to the position shown by the chain line in the figure, closes the through hole 2b formed in the middle frame 2 that communicates the outlet path 24 and the conduit 23, and the liquid L such as hot water stored in the container 8 flows out. It is designed to prevent

Further, inside the outer lid 19, a packing 2 is attached to a wall portion 26 whose lower surface is annularly protruded from the upper surface of the stopper 4.
A mounting plate 28 is provided, which is airtightly joined to the mounting plate 28 via 7. A bellows 29 constituting a pump mechanism is provided on the upper surface of this mounting plate 28 with its lower end connected. A first spring 30 is housed inside the bellows 29, and an upper plate 31 is attached to the upper end. Furthermore, on the outer lid 19,
A mounting recess 32 with an open upper surface is formed.
The bottom plate 33 of the mounting recess 32 has a central portion bulged upward, and a housing recess 34 is formed on the lower surface thereof. Further, the mounting recess 32 is provided with a pusher body 35 shaped like a hat. A plurality of control pieces 36 are formed on the peripheral wall of this pushing body 35. This control piece 36 is attached to the mounting recess 32.
The control piece 36 is fitted into a through hole 37 formed in the bottom plate 33 of the control piece 36, and the control piece 36 passes through the through hole 37 only when the pushing body 35 is rotated by a predetermined angle and pressed. . Further, a shaft body 38 is vertically provided on the inner surface of the upper wall of the pusher body 35 . The lower end of this shaft body 38 protrudes from a hole 33a formed in the bottom plate 33, and a contact body 39 is provided at the lower end so as to be located in the accommodation recess 34 formed on the lower surface of the bottom plate 33. It is being A second spring, which is weaker than the first spring 30, is provided between the contact body 39 and the upper plate 31.
A spring 40 is interposed to urge the pushing body 35 upward and in the rotational direction via the abutting body 39. Further, a first through hole 42 to which an annular packing 41 is attached is formed in a portion of the upper plate 31 facing the abutting body 39. Therefore, the first through hole 42 is normally open, but when the pushing body 35 is pressed down, the first through hole 42 is closed by the abutting body 39, and in this state, the first through hole 42 is opened. Bellows 29 is compressed.

On the other hand, the mounting plate 28 has a plurality of second through holes 4.
3 is bored, and a third through hole 44 is provided protruding from a portion of the stopper 4 surrounded by the wall portion 26.
Therefore, when the bellows 29 is compressed as described above, the air inside the bellows 29 is pressurized and ejected into the container 8 through the second and third through holes 43 and 44, and the air inside the bellows 29 is compressed. Since the liquid level of the liquid L contained in the pipe 3 is pressurized, the liquid L flows out from the outlet path 24 via the conduit 23. Note that 45 in the figure is a handle whose both ends are rotatably connected to the case 1.

According to the above configuration, the temperature of the liquid L such as water contained in the container 8 is controlled by the temperature controller 14a.
If the set temperature is lower than the temperature that is just right for brewing coffee, tea, etc., a signal from the temperature controller 14a turns the heater 12 on.
The heating coil 13 is energized and heats the liquid L. When the liquid temperature rises to the set temperature, the heating coil 13 is de-energized and the heat-retaining coil 14 is energized by a signal from the temperature controller 14a. Liquid L is kept warm. Therefore, the liquid L contained in the container 8 is always maintained at a predetermined temperature and never cools down, so that hot water at a high temperature can be used at any time, which is convenient.

When the fluid L in the container 8 runs out and the liquid L is to be replenished, open the outer cover 19 while pressing the hook 20, and then remove the stopper 4 fitted into the water supply opening 3 of the inner frame 2. The liquid L may be injected into the container 8 from the water supply opening 3, but at this time, the stopper 4 does not hold a conduit as in the conventional air pot. In this embodiment, the conduit 23 is held on the side of the case 1a in which the container 8 is installed, so when replenishing the liquid L, the conduit 23
3 against the inner surface of the container 8, there is no risk of damaging the container 8 or the conduit 23.

Moreover, since the container 8 is formed to have substantially the same diameter over its entire length in the height direction, the upper opening can be made wide. Therefore, it is possible to easily clean the interior of the container 8, supply water, treat residual hot water, and treat scales formed on the inner surface of the container 8 when the container 8 is heated by the heater 12.

In addition, in the above-mentioned example, the container is made of metal,
I mentioned a pot that heats the liquid with a heater and keeps it warm.
There is no problem even if the container is made of a double glass bottle. In addition, the pump mechanism is
An electric pump may be used instead of the bellows.

Further, in the above embodiment, a conduit is connected to the connection port formed in the inner frame, and the liquid discharged from this conduit is led out of the main body through the outlet path formed on the upper surface of the inner frame. , the above-mentioned lead-out path may be constructed of a pipe-like member in the same way as the conduit.

As described above, the present invention comprises a main body in which a liquid container is housed in a case, a rotatable lid is provided on the main body to cover the opening of the container, and a pump mechanism is provided on the lid side. In addition, a discharge path is provided on the main body side for pouring out the liquid inside the container pressurized by the pump mechanism to the outside of the main body, and when the main body falls over, the liquid inside the container flows into this discharge path. A check valve mechanism was installed to prevent leakage.
Therefore, when injecting liquid into the container, the spouting path will not hit the inner surface of the container, causing damage to the container or the spouting path. Also,
The check valve mechanism is installed in the spout passage provided on the main body side, and since the lid is held in the closed state by a holding mechanism in the main body, the lid will not rotate when the main body falls. Not only is the body prevented from opening and the heated liquid does not flow out from the main body, but also the check valve mechanism prevents the heated liquid from flowing out from the dispensing path, improving safety. In addition, since the top opening of the container is made wide, it is easy to clean the inside of the container, supply water, treat residual hot water, and treat scale that forms on the inner surface of the container when it is heated by a heater. Can be done.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view showing a schematic configuration, and FIG. 2 is a cross-sectional view of FIG.
FIG. 1...Body, 1a...Case, 2...Inner frame, 8
... Container, 12 ... Heater, 19 ... Outer lid (lid body), 23 ... Conduit (pouring path), 24 ... Outlet path (pouring path), 25 ... Closing member (check valve mechanism) , 29...
...Bellows (pump mechanism), L...Liquid.

Claims (1)

[Claims] 1. A main body consisting of a liquid-containing container with a wide upper opening and a case containing this container, a heater provided at the bottom of the container, and a rotatable member attached to the main body. a lid that is connected to cover the opening of the container; a holding mechanism that engages and holds the lid in an unrotatable manner with the main body; a pump mechanism for pressurizing; a pouring path provided on the main body side for pouring out the liquid inside the container pressurized by the pump mechanism; An air pot characterized by comprising a check valve mechanism that prevents liquid from flowing out.