JPS62211023A - Electric pot - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an electric kettle for pressurized dispensing of liquid contents, and particularly to an electric kettle in which a liquid dispensing path also serves as a liquid volume display tube.

(Prior Art) Various types of electric kettles are known that have a structure in which the amount stored in the inner container can be observed from the outside. There is a structure in which the outlet channel is formed of a transparent material so that the amount of liquid stored in the inner container can be displayed by the amount of liquid in the inner liquid outlet channel.

(Problem to be Solved by the Invention) However, in the above conventional example, when the pot is accidentally overturned, the liquid in the liquid pouring path overflows from the spout, and depending on the content, the liquid may spill onto the table where the pot is placed. Depending on the temperature of the liquid inside, it may become wet and feel hot when touched, which is extremely dangerous for young children.

Therefore, there is a demand for an electric pot in which the liquid content pouring path also serves as a liquid volume display tube, and in which the liquid content does not flow out from the spout when the pot is tipped over.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention includes a liquid content pressurizing pump that pressurizes and pushes out the liquid content, and a liquid content pressurized by the pump that is pumped out of the container. In an electric kettle, which is equipped with a liquid content dispensing channel that guides the user, and in which the content liquid dispensing channel also serves as a liquid level display tube, an overturning water stop valve is provided in the content liquid dispensing channel, and the installation height of this overturning water stop valve is determined by adjusting the height of the internal container. It is characterized in that it is set close to the height of the lower end surface of the closed fluid, and the injection channel is bent toward the side of the vessel just above the overturning water stop valve.

(Function) According to the present invention, since the tipping water stop valve is provided in the content liquid pouring path, when the pot falls over, the tipping water stop valve closes the valve hole provided at the end of the liquid contents pouring path, and the liquid contents are poured out. Prevent the outlet channel from flowing out from the spout. Further, the overturning water stop valve can be provided in a space between the outer case and the inner container.

Furthermore, according to the present invention, the installation height of the overturning water stop valve is set close to the height of the lower end surface of the lid body when the inner container is closed, and the injection channel is bent toward the side of the container just above the overturning water stop valve. Therefore, it is possible to have a structure in which the front part of the lid body does not protrude upward.

(Embodiment) To explain the embodiment shown in FIG.
The upper end of the case 3 is connected to the outer case 3 by a shoulder member 4 made of synthetic resin, and a bottom plate 5 made of synthetic resin is attached to the lower end of the outer case 3. A lid 6 is provided on the shoulder member 4 of the vessel body 1 to cover the shoulder member 4, and is pivotally connected to the rear part of the shoulder member 4 by a shaft 7 so as to be openable and closable.

The lid body 6 is provided with a manual bellows pump 11 as a pump for pressurizing the liquid content, and is pressed by a pressing plate 12 facing the top surface of the lid body 6.

The liquid supply port 13 portion where the shoulder member 4 and the inner container 20 portion communicate is provided with an air supply hole 15 that is seated by a backing 14 portion on the outer periphery and communicates the discharge port 11a of the pump 11 with the inner container 2. When the pump 11 is pressed, air is sent into the inner container 2 through the air supply hole 15 to pressurize and extrude the liquid.

A liquid content discharge path 17 is provided between the inner container 2 and the outer case 3 for guiding the liquid content pressurized and poured out by the pump 11 to the outside of the container body 1 .

The lower end of the content liquid pouring path 17 is connected to the bottom of the inner container 2 18
and stands up between the inner container 2 and the outer case 3,
An overturn water stop valve 81 is provided near the height of the lower end surface of the lid body 6 with the inner container 2 closed.

The upper end of the liquid content spouting passage 17 is bent to the side of the container 1 just above the tipping water stop valve 81, and extends toward the upper side of the container 1 along the beak-shaped portion 4b of the shoulder member 4, and the beak is bent toward the side of the container 1. A spout 20 is opened downward from the bottom opening 19 of the shaped portion 4b. The rising part of the content liquid pouring path 17 is formed by a transparent tube 21 to serve as a liquid volume display part 17rr, and
The outside can be observed through a display window 23 equipped with a display window 23.

A heating part 25 for heating the inflowing content liquid with a heater 24 is provided between the connection 18 of the liquid content pouring path 17 and the display part 17a.
is formed. The heating section 25 has a narrow content liquid pouring path 1.
A heater 24 is wound around the outside of the water heater 7 to efficiently heat a small amount of the content liquid that flows into the content liquid pouring path 17 and flows away, which is a type of so-called instantaneous water boiling type.

26 is a power connection port, 27 is a main switch provided in the energizing circuit of the heater 24, and 28 is a locking member of the lid 6, which is engaged with the locking portion 30 of the shoulder member 4 by the bias of a spring 29. , the lid 6 is locked in the closed state.

The heater 24 opens the content liquid pouring path 1 by pressurizing the pump 11.
7 is used to efficiently heat the liquid being pushed out using an instantaneous boiling method, and by appropriately setting the heater capacity and the normal flow rate of the liquid in the heating section 25,
The content liquid at a sufficiently high temperature can be poured out only by heating by the heater 24 at the time of pouring out the content liquid. However, the heating efficiency is greatly affected by the heat exchange structure between the heater 24 in the heating section 25 and the content liquid via the passage pipe of the content liquid pouring path 17, but various known instant water boiling heat exchange structures are adopted. do it.

As shown by the imaginary line, in a hot water storage type electric kettle, another heater 31 is wrapped around the outer circumference of the bottom of the inner container 2 to heat the liquid inside the container 1 and maintain it at a constant temperature. The heating of the liquid to be poured out in the heating section 25 only requires raising the kept liquid to a desired temperature, it is sufficient to use a small capacity heater 24, and the heating of the liquid in the liquid pouring path 17 is sufficient. The normal flow rate in the heating section 25 also does not need to be restricted. The other heaters 31 can also be two, a heater for boiling water and a heater for keeping warm.

Reference numeral 32 denotes a safety locking member that locks the press plate 12 so that it cannot be operated, and also releases the locking. By moving the press plate 12 to the left and right in the circumferential direction, the press plate 12 is locked and unlocked.

The content liquid pouring path 17 may be a liquid path formed between another plate member by applying another plate member to the wall surface of the inner container 2, etc. that constitutes the container body 1, or, in some cases, a liquid path formed in the upper part near the spout. It may also include a liquid path in an open state.

2 and 3, a switch 41 is provided which is turned on and off when the safety locking member 32 is unlocked and locked with respect to the press plate 12, and when dispensing the liquid content, Each time the safety locking member 32 is switched to the lock release position in order to operate the liquid pressurizing pump 11, the switch 41 is turned on to energize the heater 24 of the heating section 25 provided midway through the content liquid pouring path 17. ing. The switch 41 may be used in combination with the main switch in the above embodiment,
The main switch may be omitted.

The switch 41 is provided at the lower part of the operation part 32a in the lid 6 so as to be operated by the safety locking member 32, and is released and turned off when the safety locking member 32 is in the locking position shown by the solid line in FIG. state, and when it is in the unlocked position shown by the imaginary line in FIG. The lid body 6 is drawn into the space between the inner container 2 and the outer case 3 of the container body 1 through the connection part 44 of the lid body 6 and the shoulder member 4, and is connected to the heater 24 in the heating part 25 in the middle of the content liquid pouring path 17. It is difficult to be affected by the opening and closing of the door.

FIG. 4 shows a branched liquid return passage 52 connected to the upper part of the inner container 2 immediately above the display part 17a of the liquid discharge passage 17, and a heating part 25 of the liquid discharge passage 17 and a connecting part 18. In between, a check valve 53 is provided to prevent the content liquid that has flowed into the content liquid spouting path 17 from the connection 18 from flowing back into the inner container 2 through the connection 18. In the branch part, the upper part of the display part 17a of the spouting path 17 is provided with an overturning water stop valve that selectively communicates with either the liquid return path 52 or the spout passage 54 having the spout 20. A switching valve 55 is provided. Further, the switching valve 55 has its valve stem 55a projected upwardly and downwardly into the spout passage 54, and is biased upwardly by the spring 56, so that the valve 55 moves into the spout passage 1.
7, the valve stem 55 is always in the solid line position communicating the liquid return path 52 with the lid body 6, and the valve stem 55 is attached to the lid body 6 in its closed state.
A vertically movable operating rod 57 facing the upper end is held, and the operating rod 57 is pressed down simultaneously with the pressing of the pump 11 by the pressing plate 12 using the operating piece 58 provided on the pressing plate 12, thereby virtually opening the switching valve 55. The display section 17a is switched to the line position to communicate the upper part of the display section 17a to the spout passage 54.

When the heater 24 is energized, the content liquid that has naturally flowed into the content liquid pouring path 17 via the check valve 53 is efficiently heated by the heater 24 in the heating section 25 using an instantaneous water boiling method, and is brought to a boil. However, as the pressure rises and the liquid reaches a state close to that, it tries to exit from the spouting passage 17.
Since the backflow from the connection 18 into the inner container 2 is blocked by the check valve 53, it flows out to the display section 17a of the spouting path 17 and rises. The water flows through the water in sequence and is heated. The heated content liquid rising above the display section 17a is transferred to the inner container 2 through the content liquid return path 52.
It will be sent back inside.

As a result, the content liquid in the inner container 2 is 1. Content liquid pouring path 17
While being circulated through the water, it is efficiently heated by an instantaneous water boiler in a heating section 25 along the way, and the entire amount is quickly and uniformly heated to a predetermined temperature. The heater 24 can maintain the content liquid at a constant temperature by sensing the temperature of the content liquid and turning it on and off. A temperature-sensitive control element 59 such as a thermostat that controls on and off the heater 24 is connected to the inner container 2.
Provided in a part of the outer surface of the heater 24 that is not easily affected by the heat,
It should be possible to accurately sense the temperature of the liquid inside, but the 8-temperature safety element 60, such as a temperature fuse to prevent dry cooking,
It is provided to sense the temperature of the heating part 25 which reaches the highest temperature earliest during dry cooking.

When the press plate 12 is pushed down to pour out the liquid content, the pump 11 is contracted and air is sent into the inner container 2 to pressurize the liquid content.
7 to the imaginary line position, and the upper part of the display section 17a is communicated with the spout passage 54. As a result, the content liquid pressurized by the pump 11 is pushed out to the spout passage 17 and heated by the heating section 25, while being heated by the spout passage 54.
The liquid is poured out from the spout 20.

If the heater 24 happens to be turned off due to the temperature-sensitive control element 59 when dispensing the liquid content, the liquid content to be poured out will not be heated by the heating section 25, and the desired temperature will not be obtained. . For this purpose, as shown in FIG. 5, a short-circuit switch 61 for short-circuiting the temperature-sensitive control element 59 is provided in the energizing circuit of the heater 24, and the switch 61 is connected to the pump by the press plate 12 as shown in FIG. During the pressing operation of 11, the valve 55
It is turned on in conjunction with the depression of , and the temperature-sensitive control element 59 is short-circuited. Therefore, the heater 24 is always turned on when dispensing the content, and the short-circuit switch 61 heats the dispensing content to a desired temperature and then pours it out.
Similarly to the switch 41 in FIGS. 3 and 3, it may be turned on by releasing the lock of the safety locking member 32 from the press plate 12, or it may of course be turned on and off by hand. It is.

6 and 7, the upper part of the display part 17a of the liquid content spouting passage 17 is connected to the liquid return passage 52 and the spout passage 54 by a rotary switching valve 71 that also serves as an overturning water stop valve. The short-circuit switch 61 is connected to the valve stem 71a and manually operated by an operating lever 72 provided on the side of the beak-shaped portion 4b of the shoulder member 4. The lever 72 is configured to be pushed and operated by an operating protrusion 72a formed integrally with the lever 72. 73 and 74 are stoppers that restrict the rotation range of the lever 72, and 75 is a click stopper that provides light elastic resistance to the rotation of the lever 72 between the reswitching positions shown by solid lines and virtual lines.

In the above example, only the case where the heating part is provided on the base side of the content liquid spouting path is shown, but in a system in which the content liquid is not circulated and heated, the heating part flows into the spout side rather than the heating part of the content liquid pouring path and is poured. The liquid content waiting to be dispensed will not be heated during dispensing, and if the liquid content outlet type is as shown in Figures 1 and 4, the content liquid that is dispensed without being heated will be heated. The amount is relatively large. If this is inconvenient, the heating part may be installed as close to the spout as possible in the content fluid spouting path.
It can also be provided closer to the spout than the display part of the spout channel as shown in the figure. If the heating part is a dispensing channel part that can be attached to and removed from the container body, it is sufficient to energize the heater of the heating part through a separable electrical connection part from the container body side, and there is no problem, and various other known contents can be used. The present invention can also be applied to liquid outlet type devices.

(Effects of the Invention) According to the present invention, since the tipping water stop valve is provided in the liquid pouring path, it is possible to prevent the liquid in the liquid pouring path from flowing out from the spout when the pot topples over. Furthermore, according to the present invention, the overturning water stop valve can be provided in the space between the outer case and the inner container, which eliminates the need to provide a special space for installing the water stop valve. It does not cause the structure to become complicated.

Furthermore, according to the present invention, the installation height of the overturning water stop valve is set close to the height of the lower end surface of the lid body when the inner container is closed, and the injection channel is bent toward the side of the container just above the overturning water stop valve. Therefore, the front part of the lid body does not protrude upward, the front part of the pot does not become bulky, and the pot can be made more compact.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of one embodiment, Fig. 2 is a partial sectional view of a modified example, Fig. 3 is a partial sectional view with the orientation changed, and Fig. 4 is a sectional view of main parts of another embodiment. , FIG. 5 is an electric circuit diagram, FIG. 6 is a partial sectional view of a modified example, and FIG. 7 is a partial side view.

Claims (1)

[Claims] (1) Equipped with a content liquid pressurizing pump that pressurizes and extrudes the content liquid, and a content liquid extraction path that guides the content liquid pressurized and poured out by the pump to the outside of the container, and the content liquid extraction path is connected to a liquid volume display tube. In an electric kettle that can also be used as An electric kettle characterized by having an injection channel bent toward the side of the container just above the pot.