JPH049404B2 - - Google Patents

Description

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

(Prior Art) Various types of electric pots with a structure that allows external observation of the amount stored in the inner container are known. There is a structure in which the outlet channel is made 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 pot may not be placed properly. The tabletop you are sitting on will get soaked with water, and depending on the temperature of the liquid, you will feel hot when you touch it, which is extremely dangerous for young children.

Therefore, there is a demand for an electric pot in which the liquid content spouting 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 provides a liquid content pressurizing pump that pressurizes and extrudes the liquid content,
In an electric pot, which is equipped with a liquid outlet passage that guides the liquid dispensed under pressure by a pump to the outside of the container, and which also serves as a liquid volume display tube, the electric pot is equipped with an overturn water stop valve in the liquid outlet passage. The installation height of the overturning water stop valve is set close to the height of the lower end surface of the lid with the inner container closed, and the water injection channel is bent to the side of the container 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 spouting path, when the pot falls over, the tipping water stop valve closes the valve hole provided at the end of the content liquid pouring path, and the content liquid is 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 with the inner container closed,
Since the water injection channel is bent toward the side of the vessel just above the overturning water stop valve, the front part of the lid body can be constructed so as not to protrude upward.

(Example) The example shown in FIG. 1 will be described as follows.
Reference numeral 1 denotes a container body, in which the mouth of a metal inner container 2 and the upper end of a metal outer case 3 are connected by a synthetic resin shoulder member 4, and a synthetic resin bottom plate 5 is attached to the lower end of the outer case 3. is installed. 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. A liquid supply port 1 where the shoulder member 4 and the mouth of the inner container 2 communicate with each other.
The third part is provided with an inner lid 16 that is seated by a packing 14 part on the outer periphery and has an air supply hole 15 that communicates the discharge port 11a of the pump 11 with the inside of the inner container 2. When the pump 11 is pressed, the air supply hole opens. 15
Air is sent into the inner container 2 through the inner container 2 to pressurize and push out the inner liquid. A content liquid discharge path 17 that guides the content liquid dispensed under pressure by this pump 11 to the outside of the container body 1 is connected to the inner container 2 and the outer case 3.
is established between.

The content liquid spouting path 17 has a lower end connected 18 to the bottom of the inner container 2, stands up between the inner container 2 and the outer case 3, and falls near the height of the lower end surface of the lid 6 that closes the inner container 2 to stop water. A valve 81 is provided. The upper end of the liquid content spouting passage 17 is bent to the side of the vessel 1 just above the overturning water stop valve 81, and extends to one side of the upper part of the vessel 1 along the beak-shaped portion 4b of the shoulder member 4. 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 and the liquid amount display part 17 is formed by a transparent tube 21.
a, and the outside can be observed through a display window 23 fitted with a transparent plate 22 of the exterior case 3.

Connection section 18 of content liquid pouring path 17 and display section 17a
A heating section 25 for heating the inflowing content liquid by a heater 24 is formed between the two. Heating section 25
This is a type of so-called instant water boiler, in which a heater 24 is wrapped around the outside of the narrow liquid pouring path 17 to efficiently heat a small amount of liquid that flows into the liquid pouring path 17 and flows out. ing.

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. , lock the lid 6 in the closed state.

The heater 24 performs efficient instantaneous boiling type heating for the liquid content pushed out of the liquid pouring path 17 by the pressurization of the pump 11, and the heater capacity and the normal flow rate of the liquid content in the heating section 25 are By setting appropriately, the content liquid can be poured out at a sufficiently high temperature simply by heating by the heater 24 during pouring out the content liquid. Of course, 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 instantaneous water boiling type heat exchange structures should be adopted.

As shown by the imaginary line, in the case of a hot water storage type electric pot, another heater 31 is wrapped around the outer circumference of the bottom of the inner container 2 to heat the liquid inside the container body 1 and maintain it at a constant temperature. , heating of the poured content liquid in the heating section 25 only requires raising the kept content liquid to a desired temperature, and the heater 2
4 is sufficient if it has a small capacity, and there is no need to limit the normal flow rate in the heating section 25 of the liquid content pouring path 17. 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 in an unoperable manner and releases the locking, and as is known in the art, an operating portion 32a that protrudes to the top surface of the lid 6 is connected to the top surface of the lid 6. 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 spouting path 17 may be a liquid path formed between the inner container 2, etc., which constitutes the container body 1 by applying another plate member to the wall surface, or a gutter-like liquid path formed near the spout in some cases. It may also include a liquid path with an open top.

2 and 3, a switch 41 is provided which is turned on and off as the safety locking member 32 is unlocked and locked with respect to the press plate 12. Each time the safety locking member 32 is switched to the unlocking position in order to operate the liquid pressurizing pump 11, the switch 41 is turned on and the content liquid pouring path 17 is turned on.
He is trying to energize the heater 24 of the heating part 25 provided in the middle. The switch 41 may be used in combination with the main switch in the embodiment described above, or the main switch may be omitted.

The switch 41 is provided at the lower part of the operating part 32a in the lid 6 so as to be operated by the safety locking member 32, and is released when the safety locking member 32 is in the locking position shown by the solid line in FIG. is in the off state, and the third
When it is in the unlocked position shown by the imaginary line in the figure, it is pushed to be in the on state, and the lead wire 42
The lid body 6 is pivotally connected to the rear part of the shoulder member 4 by a shaft 43, and the lid body 6 is pulled into the space between the inner container 2 and the outer case 3 of the container body 1 via the connecting portion 44 between the lid body 6 and the shoulder member 4, and the liquid content pouring path is opened. It is connected to the heater 24 in the heating section 25 in the middle of the heating section 17, making it less susceptible to the effects of opening and closing of the lid 6.

In FIG. 4, a content liquid return passage 52 connected to the upper part of the inner container 2 is branched immediately above the display part 17a of the content liquid dispensing passage 17, and a heating part 2 of the content liquid dispensing passage 17 is branched.
5 and the connection 18, a check valve 53 is provided between the connection 18 and the connection 18 to prevent the liquid from flowing back into the inner container 2 through the connection 18. Content liquid return path 5
In the branch part 2, the upper part of the display part 17a of the spouting passage 17 is provided with an overturning water stop valve that selectively communicates with either the liquid return passage 52 or the spout passage 54 having the spout 20. A switching valve 55 is provided. Further, the switching valve 55 connects its valve stem 55a to the spout passage 54.
The valve 55 is made to protrude upwardly so as to be movable up and down, and is biased upwardly by a spring 56 so that the valve 55 is always at the solid line position where the liquid return path 52 communicates with the spout path 17. In its closed state, the valve stem 55a
A vertically movable operating rod 57 facing the upper end is held, and the operating rod 57 is connected to the operating piece 5 provided on the pressing plate 12.
8, the press plate 12 is pressed down at the same time as the pump 11 is pressed, the switching valve 55 is switched to the imaginary line position, and the upper part of the display section 17a is communicated with 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, the check valve 53 prevents backflow from the connection 18 into the inner container 2, so that the pressure rises and the pressure rises to a state close to that. The check valve 5 is connected to the heating section 25 from inside the inner container 2.
3 and then sequentially flows in and is heated. Display section 17
The heated content liquid that rises through the content liquid return path 5
2 into the inner container 2.

As a result, while the liquid in the inner container 2 is being circulated through the liquid pouring path 17, it is efficiently heated by an instantaneous boiler type in the heating section 25 in the middle of the circulation, and the entire amount is quickly and uniformly brought to a predetermined temperature. heated. 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.
The temperature-sensitive safety element 60, such as a temperature fuse, is installed on the outer surface of the heater 24 in a part that is not easily affected by the heat, so that the temperature of the liquid inside can be accurately detected. It is provided to sense the temperature of the heating section 25 which reaches the highest temperature the earliest.

When the press plate 12 is pushed down to pour out the liquid, the pump 11 is contracted and air is sent into the inner container 2 to pressurize the liquid. The upper part of the display part 17a is pushed down to the line position, and the upper part of the display part 17a is pushed down to the spout passage 54.
will be communicated to. 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. . Therefore, as shown in FIG. 5, a short-circuit switch 61 is provided in the energizing circuit of the heater 24 to short-circuit the temperature-sensitive control element 59.
When the press plate 12 presses the pump 11, the valve 5
It is turned on in conjunction with pressing down of the temperature sensitive control element 59. Therefore, heater 2
4 is always turned on when dispensing the liquid content, and heats the liquid content to be poured out to a desired temperature before pouring it out.

Like the switch 41 in FIGS. 2 and 3, the short circuit switch 61 may be turned on by unlocking the safety locking member 32 with respect to the press plate 12, or may be turned on and off by hand. Of course, it is also possible to do so.

In FIGS. 6 and 7, the upper part of the display part 17a of the liquid content pouring passage 17 is connected to the liquid return passage 52 and the water inlet passage 54 by a rotary switching valve 71 that also serves as an overturning water stop valve. The valve 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. , short circuit switch 61
is adapted to be pushed and operated by an operating protrusion 72a formed integrally with the lever 72. 73, 74
75 is a stopper that restricts the range of rotation of the lever 72, and 75 is a click stopper that provides light elastic resistance to the rotation of the lever 72 between the switching positions shown by solid lines and imaginary 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 the first
With the liquid pouring path type shown in FIGS. 4 and 4, a relatively large amount of liquid can be poured out without being heated. If this is inconvenient, the heating section may be provided as close to the spout as possible in the content liquid spouting path, and can also be provided closer to the spout than the display section of the spouting path as shown in FIG. 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 liquid content spouting path is provided with an overturn water stop valve, it is possible to prevent the liquid in the liquid content spouting path from flowing out from the spout when the pot falls over.
Safety can be ensured when using the pot.

Further, according to the present invention, since the overturning water stop valve can be provided in the space between the outer case and the inner container, it is possible to save the trouble of providing a special space for installing the water stop valve, and the structure does not 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 with the inner container closed,
Since the injection channel is bent to the side of the container just above the overturning water stop valve, the front part of the lid 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.
The figure is a partial side view. DESCRIPTION OF SYMBOLS 1... Container body, 2... Inner container, 3... Outer case, 4... Shoulder member, 6... Lid body, 11... Manual bellows pump, 12... Pressing plate, 17... Content liquid pouring path , 17a...Liquid level display section, 23...Display window, 81...Tipping water stop valve.

Claims (1)

[Claims] 1 Equipped with a content liquid pressurizing pump that pressurizes and pushes out the content liquid and a content liquid dispensing path that guides the content liquid pressurized and dispensed by the pump to the outside of the container, and the content liquid dispensing path also serves as a liquid volume display tube. In the electric pot, an overturning water stop valve is installed in the content liquid pouring path, and the installation height of this overturning water stop valve is set close to the height of the bottom surface of the lid body when the inner container is closed, and the installation height of this 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. An electric pot characterized by having an injection channel bent toward the side of the container at the top.