JPS5931148Y2 - electric pot - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electric kettle that uses a heater to boil a liquid such as water contained in the body and keep it warm.

2. Description of the Related Art Conventionally, electric kettles of this type have been provided with a liquid level meter that displays the amount of liquid in the body and a display lamp that displays the energization status of the heater on the outer surface of the body.

However, in the past, although both the liquid level meter and the energizing lamp were used to visually check the status from the outside, there was no relationship between their installation positions and they were completely separate. It is located in the
For this reason, each time you want to check both of them, you have to change your posture and visually observe them from different directions, which is extremely cumbersome.

This idea was developed with this in mind, and its purpose is to centrally arrange the liquid level meter and indicator lamp so that they can be viewed externally. To provide an electric kettle capable of accurately carrying out operations from one direction at a time without any trouble.

An embodiment of this invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes the main body, which consists of a cylindrical tank 3 with a bottom provided inside a case 2.

An inner lid 4 is provided at the upper end of the case 2, and a replenishment port 4a is formed in the inner lid 4, and a stopper 5 is removably fitted into the replenishment port 4a via a backing 5a.

The tank 3 is mounted and held on a holding plate 6 installed horizontally on the inner bottom of the case 2, and a flange 9 having an arcuate cross section is integrally formed around the opening at the upper end, and this flange 9 is connected to the inner lid. It is hermetically fitted into a groove 10 formed around the lower surface of 4 with a backing 11 interposed therebetween, and is pressed by a pushing member 12.

Further, a flat heater 13 is attached to the outer circumferential surface of the lower end of the tank 3 along its circumferential direction. It is electrically conductive.

Furthermore, bushings 15 a and 15 b made of rubber or the like are fitted on the upper and lower sides of the tank 3 in an airtight manner, respectively, and a transparent communication line forming a liquid meter is formed between these bushings 15 a and 15 b. A pipe 15 is constructed, and a colored float 15C is freely movably housed inside the communication pipe 15.

On the top side of the inner lid 4, there is a hemispherical recess 16a at the top.
An outer cover 16 having an outer cover 16 is rotatably provided via a pin 16b.

Projections 17 and 18 projecting laterally are integrally formed on the outer lid 16 and the inner lid 4, respectively, and these overlap each other and are locked via a hook 19 that can be operated externally.

A supply passage 20 is formed on the upper surface of one of the protrusions 18 , a conduit 21 is connected to the base end of the supply passage 20 , and the lower end of this conduit 21 faces the inner bottom of the tank 3 .

Further, the distal end side of the supply path 20 is open to the outside via the supply port 22.

An air pump mechanism 23 is incorporated inside the outer lid 16. That is, a substrate 24 is provided horizontally on the lower surface of the outer lid 16, and a bellows 25 is attached to the upper surface of this substrate 24.

This bellows 25 has a movable plate 26 at the upper end, and this movable plate 26 is connected to a spring 2 disposed inside the bellows 25.
It is urged upward by 7.

A pusher body 28 is loosely fitted into the recess 16a of the outer cover 16 so as to be able to move up and down, and interlocking pieces 29.2 are provided on both sides of the pusher body 28.
9 are integrally formed, and the lower ends of these interlocking pieces 29, 29 face the peripheral portion of the movable plate 26 through through holes 31, 31 formed in the bottom plate 30 of the recess 16a.

An introduction hole 32 is formed in the center of the movable plate 26, and an annular backing 33 is fitted onto the inner peripheral edge of the introduction hole 32.

A cylinder 34 is slidably inserted into the bottom plate 30 of the recess 16a, one end of which is fixed to the inner surface of the pusher 28 via a screw 35, and the other end has an abutment plate 36. This contact plate 36
is opposed to the introduction hole 32.

A spring 37 having a smaller spring coefficient than the above-mentioned spring 27 disposed inside the bellows 25 is provided between the abutting plate 36 and the movable plate 26, and the elastic force of this spring 37 causes the abutting plate 36 to The pushing body 28 is integrally urged upward, and a small gap 38 is secured between the contact plate 36 and the introduction hole 32.

An annular projecting wall 40 is integrally provided on the upper surface of the opening/closing stopper 5, and a backing 41 is attached to the projecting wall 40, and the base plate 24 of the outer lid 16 can be attached to and separated from the backing 41 in an airtight manner. It is in contact with the target.

On the inner side of the projecting wall 40, through holes 42 and 43 are formed in the base plate 24 and the stopcock 5, respectively.

A vertically elongated cutout groove 44 is formed on the side surface of the case 2, facing the communication pipe 15 constituting the liquid meter.

A window frame 45 is attached to the outer surface of the case 2 so as to cover the notch groove 44, a display window 46 facing the notch groove 44 is formed in the window frame 45, and a measuring window 46 is formed on the side edge of the display window 46. A scale has been applied.

Furthermore, a pair of light projection windows 47 and 48 are formed at the lower end of the window frame 45.

An energization indicator lamp 49 and a heat retention indicator lamp 50 are arranged inside these light projection windows 47, 48 and facing them.

One energization indicator lamp 49 continues to light up at all times when a main switch (not shown) is turned on, and the other heat retention indicator lamp 50 lights only when the heater 13 is actually energized, and the energization is due to thermostat) 13a. The light is turned off in response to the interruption.

And one light projection window 47 corresponding to the energization indicator lamp 49
For example, a red colored lens 47 a is attached to the display window 48 , and a blue colored lens 48 a for example is attached to the other light projection window 48 corresponding to the heat retention indicator lamp 50 .

Further, one of the energization indicator lamps 49 is exposed inside the case 2 and faces the lower part of the communication tube 15, and an auxiliary lamp that continues to be lit in the same way as the energization indicator lamp 49 is provided above the communication tube 15. 52 are arranged.

Next, the effect will be explained.

The liquid in the tank 3 is heated by the heater 13 to raise its temperature, and the temperature is kept constant by intermittent energization by the thermostat 13a.

When the pushing body 28 is pushed downward in this state, the contact plate 36 first comes into contact with the backing 33, the introduction hole 32 is hermetically closed, and then the movable plate 26 is pushed downward, and the bellows 25 moves inside. It is compressed together with the air, and the compressed air is discharged into the tank 3 through the through holes 42,43.

This discharge pressurizes the liquid surface of the liquid reservoir, and accordingly, the high temperature liquid is discharged to the outside through the conduit 21°, the supply path 20, and the supply port 22.

After that, when the push body 28 is released, the spring 3
The contact plate 36 is separated from the backing 33 together with the pushing body 28 due to the elastic force of 7, and external air flows into the bellows 25 from the gap 38 through the introduction hole 32. Force returns it to its original state.

Since the inside of the tank 3 communicates with the inside of the communication pipe 15 through the bushes 15 a and 15 b, a liquid level at the same level as the liquid level inside the tank 3 is formed in the communication pipe 15 , and the flow is on this liquid level. H5C is stationed.

Therefore, by visually observing the flow NSC of the liquid level from the outside through the display window 46, the amount of liquid in the tank 3 can be easily confirmed from the outside.

The area around the communication tube 15 is brightly illuminated by the energization indicator lamp 49 and the auxiliary lamp 52, which are kept on at all times, so that the above-mentioned liquid level can be clearly checked.

The current status of the heater 13 can be determined by visually observing the indicator lamps 49,50 through the light projecting windows 47,48, but these light projecting windows 47,48 are concentrated on the same line as the display window 46 for displaying the liquid level. Therefore, the liquid level and the energization status can be checked at the same time from the same direction and in the same posture.

Therefore, it is possible to easily prevent the occurrence of so-called dry heating in which the heater 13 is energized while no liquid is contained in the tank 3.

In the above embodiment, the light emitting window of each indicator lamp was provided at the lower end of the window frame, but this is shown at 47' and 48' in FIG.
As shown in the figure, there is no problem in providing it at the middle and both sides of the window frame 45.

As explained above, according to this invention, it is possible to check the liquid level and the energization status of the heater at the same time from the same direction and in the same posture. This has the advantage of easily preventing the occurrence of

[Brief explanation of drawings]

FIG. 1 is a sectional view showing one embodiment of this invention, FIG. 2 is a front view thereof, and FIG. 3 is a front view showing another embodiment of this invention. 1... Body, 13... Heater, 15.
...Communication pipe (liquid level meter), 45...Window frame,
46...Display window, 47.48...Light projection window, 49.50...Display lamp.

Claims (1)

[Scope of utility model registration request] A main body equipped with a heater, an indicator lamp that displays the energization status of the heater, a liquid level meter that displays the amount of liquid in the main body, and a liquid level meter that is provided on the outer surface of the main body so that the liquid level meter faces the outside. An electric pot characterized by comprising: a window frame having a display window; and a light projection window formed on the window frame to project light from the display lamp to the outside.