JP3208024B2 - Jar pot - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jar pot for use in ordinary households, which includes a bellows pump and an electric pump, and can supply hot air when no power is supplied and hot water when power is connected. .

[0002]

2. Description of the Related Art Conventionally, an air-type jar pot in which a bellows pump is pressed to pump air into a container to supply hot water is generally used. However, in order to reduce the inconvenience of pressing the pump many times, simply press a switch lightly. There are electric jar pots with electrically operated electric pumps or electric centrifugal pumps.

[0003]

The electric jar pot in which the operability of the pneumatic jar pot is improved also has a problem that hot water cannot be supplied without a power source and can be used only in a place where the power source is present. In order to solve this problem, there is provided an electric jar pot of a type including a rechargeable secondary battery, charging the secondary battery when a power supply is connected, and supplying power from the secondary battery when there is no power supply. (See, for example, JP-A-63-43619, Japanese Utility Model Application Laid-Open No. 5-63419).
No. 2, the heat resistance and the life of the secondary battery are problematic, and the cost is increased.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has a container incorporated in a main body, a heater for heating hot water in the container, and a lid for covering an upper opening of the container. And a bellows pump housed in the lid, and an electric pump connected to the bottom of the vessel and housed in the main body.A push plate is provided on the top of the lid above the bellows pump, and a tap is provided from the bottom of the vessel via a hot water supply path. An electric hot water supply operation button on the top of the lid, an electric hot water supply path from the bottom of the container to the hot water outlet via the electric pump and hot water supply path, and a push near the push plate on the top of the lid A tapping stopper that locks both the plate and the electric tapping button is provided. When the hot water is supplied from the hot water outlet by pumping air, and when the electric hot water operation button is pressed while the power is connected, the electric pump is activated and the hot water in the container is sent out and the hot water is discharged from the hot water outlet. By operating the operation part of the operation stopper, both the push plate and the electric hot water operation button are locked.

When the tapping operation stopper is operated by operating its operating portion, the locking projection provided on the inner periphery thereof is fitted to the locking projection provided on the outer periphery of the push plate. With a configuration to stop the operation of the push plate,
Further, when the electric tapping operation button is operated, the locking projection provided on the tapping arm side of the tapping operation stopper is fitted to the locking projection of the tapping arm which is pushed in.

[0006]

With the above arrangement, when the electric tapping operation button is pressed while the power supply is connected, the electric pump is operated to send out the hot water in the container and to supply hot water from the tap hole, while the power supply is not connected. In some cases, the bellows pump is compressed by pressing the push plate, and air is pressure-fed into the container to make the hot water flow out of the hot water outlet, and a desired amount of hot water can be produced by repeating the pressing of the bellows pump. In addition, the electric hot water operation button and the push plate provided on the upper portion of the lid can be operated from above without any discomfort.

The tapping operation stopper provided in the vicinity of the push plate is operated by operating the operating portion, and the tapping projection provided on the outer periphery of the push plate is engaged with the retaining protrusion provided on the inner periphery of the tapping operation stopper. The mating parts stop the operation of the push plate, and when the electric tapping operation button is further operated, the latching projection provided on the tapping arm side of the tapping operation stopper fits into the latching projection of the tapping arm that is pushed in. Lock the electric tap operation button together.

[0008]

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

FIG. 1 is a schematic sectional view of a jar pot showing one embodiment of the present invention, FIG. 2 is an enlarged sectional view of a main part of the jar pot, FIG.
FIG. 4 is a control system diagram of the jar pot.

In FIG. 1, reference numeral 1 denotes a main body, and 2 denotes a container which is contained in the main body 1 and stores a liquid 3 such as water or hot water. 4
Is a heater comprising a water heater 4a and a warming heater 4b, which is mounted on the outer bottom surface of the container 2 with a holding plate 4c,
The liquid 3 in the container 2 is heated and kept warm. Reference numeral 5 denotes a water temperature sensor mounted at the center of the outer bottom surface of the container 2, and detects the temperature of the liquid 3 in the container 2.

Reference numeral 6 denotes a lid detachably mounted on an upper opening of the main body 1 so as to be rotatable about a hinge 7. A back lid 8 is attached to a lower opening of the lid 6, and a back lid 8 is provided. A back cover 9 made of a stainless steel plate is attached and fixed so as to cover the lower surface of. 10 is a bellows pump housed in the lid 6,
It is pressed and compressed in conjunction with the pressing of the push plate 11 provided on the top of the lid 6. Reference numeral 12 denotes a bellows intake valve provided at the center of the upper part of the bellows pump 10, which closes the upper part of the bellows pump 10 when the push plate 11 is pressed, and opens the bellows pump 10 when the push plate 11 is not pressed. The upper part is opened and air is taken into the bellows pump 10. A bellows shaft 13 is provided below the bellows intake valve 12 and operates in conjunction with the up and down movement of the bellows pump 10.

Reference numeral 14 denotes a switching valve attached to the lower end of the bellows shaft 13, reference numeral 15 denotes a steam passage formed in the back cover 8, and reference numeral 16 denotes a steam passage formed in the upper portion of the lid 6 in communication with the steam passage 15. Hole. When the push plate 11 is pressed, the switching valve 14 is lowered to close the space between the container 2 and the steam passage 15 to communicate the bellows pump 10 with the inside of the container 2. When the push plate 11 is not pressed, the switching valve 14 is raised. The boiling steam is released by communicating between the container 2 and the steam hole 16 via the steam passage 15.

Reference numeral 17 denotes a container 2 when the jar pot is overturned.
A stainless steel ball cover overturning water prevention valve provided in the back cover 8 to prevent the hot water 3 from flowing out, and a cover packing 18 for keeping the space between the cover 6 and the container 2 airtight. Reference numeral 19 denotes a lid lock lever for opening and closing the lid 6 by opening and closing. Reference numeral 20 denotes a slide piece that locks or releases the lock of the lid 6 in conjunction with the lid lock lever 19.

Reference numeral 21 denotes a container filling line provided at the upper part of the inner wall of the container 2, reference numeral 22 denotes a tapping path of a transparent glass tube for tapping the hot water 3 in the container 2, and reference numeral 23 denotes that the hot water 3 does not flow out when the jar pot falls. As described above, a ceramic body overturning water prevention valve provided downstream of the hot water supply path 22, and reference numeral 24 denotes a hot water outlet provided on the upper portion of the main body 1. Reference numeral 25 denotes a bottom frame at the bottom of the main body 1, and a panel 26 provided with operation switches (not shown) for displaying and reboiling is provided on the front of the bottom frame 25. Reference numeral 27 denotes a plug receiver provided on the rear surface of the bottom frame 25 that receives commercial power from the magnet plug. 28
Is a control board device provided near the inner panel 26 of the main body 1 and including a one-chip microcomputer for controlling the jar pot.

Reference numeral 29 denotes an electric tapping operation button provided on the top of the lid 6. Reference numeral 30 denotes a tapping arm provided below the electric tapping operation button 29, which is pushed down by pressing the electric tapping operation button 29, and
Is pressed up by a spring when not pressed. Reference numeral 31 denotes an arm shaft connected to the tapping arm 30. When the tapping arm 30 is pushed down, the arm shaft 31 is lowered via a spring to project a rod-like projection from the bottom of the lid 6, and has a predetermined load or more. When a force is applied, a cushioning property is provided so that the amount of protrusion is limited by the spring, and the arm shaft 31 has two protrusions, which move up and down at the same time.

Reference numeral 32 denotes a tapping operation stopper provided in the vicinity of the push plate 11 on the top of the lid 6. When the push plate 11 is not pressed or the electric tapping operation button 29 is not pressed, both of them are locked to prevent an accident. To prevent By operating the operation part of the tapping operation stopper 32, the locking projection 32a provided on the inner periphery of the tapping operation stopper 32 is fitted to the locking projection 11a provided on the outer periphery of the push plate 11. Push plate 1
1 is stopped, and when the electric tapping operation button 29 is further operated, the locking protrusion 30a of the tapping arm 30 which is pushed in is pressed.
An electric tapping operation button 2 is fitted with a locking projection 32b provided on the tapping arm 30 side of the tapping operation stopper 32.
Lock 9

In FIG. 1 and FIG. 2, reference numeral 33 denotes a switch packing placed on the upper portion of the main body 1 opposite to the bottom of the lid 6, and is sandwiched so that water does not enter the inside of the main body 2. Reference numeral 34 denotes a microswitch placed under the switch packing 33. When the upper part of the switch packing 33 is pressed by the projection of the arm shaft 31, the switch packing 33 bends and pushes the microswitch 34. I have. The two micro switches 34 are connected in series, and are not turned on unless the two micro switches 34 are pressed. 35 is a micro switch holder for fixing the micro switch 34,
The switch packing 33 is sandwiched between the upper part of the main body 1 and the micro switch holder 35.

In FIG. 1 and FIG. 3, reference numeral 36 denotes an electric pump which is placed at the bottom of the main body 1 and pumps out the hot water 3 in the container 2.
A pump water supply pipe 37 connects a water outlet at the bottom of the container 2 to a water supply port of the electric pump 36.
Is a pump water outlet pipe connecting the water outlet and the hot water path 22. Reference numeral 39 denotes a valve pipe provided between the pump water supply pipe 37 and the pump water discharge pipe 38.
There is a valve that allows water to pass from the side 7 to the pump outlet pipe 38, but does not allow water to pass from the pump outlet pipe 38 to the pump feed pipe 37.

In the control system diagram of FIG. 4, reference numeral 40 denotes a control device which is provided in the control board device 28, is constituted by a one-chip microcomputer, and controls a jar pot by input / output and a predetermined program. Reference numeral 41 denotes an AD converter which converts an analog voltage corresponding to the temperature detected by the water temperature sensor 5 into a digital amount and inputs the digital amount to the control device 40. Reference numeral 42 is placed on the panel 26 and pushed when boiling hot water while keeping the temperature. It is a reboil switch. Reference numeral 43 denotes a display control device that is placed on the panel 26 similarly to the reboil switch 42 and controls a display lamp 44 that indicates whether the water is being heated or kept warm. 4
Reference numeral 5 denotes a water heater control device for controlling the water heater 4a having a relatively large electric power for water heating, and 46 is a heat insulation heater 4b having a relatively small electric power for keeping the temperature of the water 3 in the container 2 at a predetermined temperature during the heat insulation. Is a heater control device for controlling the temperature. An electric pump control device 47 controls the electric pump 36 to operate when the two micro switches 34 are pressed.

Next, the operation of this embodiment having the above configuration will be described.

When water 3 is put in the container 2 and an instrument plug (not shown) connected to a commercial power supply is inserted into the plug receiver 27, the control board device 28 is energized, and water is heated according to a predetermined program. The controller 40 is programmed to perform water heater control when the temperature detected by the water temperature sensor 5 at the time of initial energization is lower than about 90 ° C., and to perform heat retention control when the temperature is higher than about 90 ° C. Normally, the water temperature is initially low, so the water heater control is started, and the water heater controller 45
As a result, electric power is supplied to the water heater 4a in the heater 4, and heating is started from the bottom of the container 2.

When the water 3 in the container 2 boils over time, the temperature does not rise, so that the rise in the temperature detected by the water temperature sensor 5 also becomes small. When the control device 40 is performing the water heater control and the detected temperature of the water temperature sensor 5 is about 90 ° C. or more, and the temperature rise that is set within a predetermined time is not obtained,
It is programmed to shift to heat retention control. For this reason, if the hot water 3 in the container 2 boils during the water heating control as described above and the rise in the detected temperature of the water temperature sensor 5 becomes small,
The control device 40 detects the boiling and shifts from the water heater control to the heat retention control. When the process shifts to the heat retention control, the power supply to the water heater 4a is stopped by the water heater control device 45.

When the temperature of the hot water gradually decreases and the temperature detected by the water temperature sensor 5 becomes lower than about 95 ° C., the control device 40 causes the heat-retaining heater control device 46 to start energizing the heat-retaining heater 4b to release the hot water 3 in the container 2. Heating is performed, and when the detected temperature of the water temperature sensor 5 becomes about 96 ° C. or more, the heating heater controller 46 is programmed to stop energizing the heating heater 4b. Therefore, as described above, when the temperature of the hot water gradually decreases during the heat retention control and the temperature detected by the water temperature sensor 5 becomes lower than about 95 ° C., the heat retention heater control device 4
6, the heater 4b is energized to raise the temperature of the hot water,
When the temperature detected by the water temperature sensor 5 rises to about 96 ° C., the operation of stopping the energization of the heat retaining heater 4b is repeated, and the hot water 3 in the container 2 is kept at a temperature of about 95 ° C. to 96 ° C.

The controller 40 is programmed to shift to the water heater control when the temperature detected by the water temperature sensor 5 becomes lower than about 90 ° C. during the heat retention control or when the reboil switch 42 is pressed during the heat retention control. . Therefore, when water is added to the container 2 or when the reboil switch 42 is pressed to obtain high-temperature hot water, the same hot water heating control as described above is performed, and after the boiling is detected, the heat retention control is performed. I do.

The control device 40 is programmed to control the display control device 43 so that the display lamp 44 turns on the hot water lamp during the water heating control and turns on the heat keeping lamp during the heat keeping control.

Next, the tapping operation is performed as follows.

When tapping the hot water 3 in the container 2 manually,
When the tapping operation stopper 32 is released and the push plate 11 above the lid 6 is lightly pushed down, the bellows intake valve 12
Is closed and the upper part of the bellows pump 10 is sealed,
Further, the switching valve 14 is lowered and the steam passage 15 is closed, whereby the bellows pump 10 and the inside of the container 2 are communicated with each other, and the air of the bellows pump 10 is pumped into the container 2 to increase the pressure in the container 2, The pressure in the container 2 increases. Therefore, the hot water 3 in the hot water supply path 22 is pushed up, and then the hot water starts to flow from the hot water outlet 24.

At this time, an air hot water path, which is a hot water path, is connected to a pump water supply pipe 37 through a water outlet at the bottom of the container 2.
The hot water flows only from the pump water supply pipe 37 to the pump water discharge pipe 38 side from the pump water supply pipe 37 to the pump water discharge pipe 38 side, and vice versa. There is a path that flows to a valve pipe 39 having a valve that does not flow and to a pump water discharge pipe 38 and similarly to tap water from the tap hole 24.
6 and a bypass route passing through the valve pipe 39 are arranged in parallel, so that the tapping resistance is reduced.

When the power supply is not connected, a desired amount of hot water 3 can be discharged by repeatedly pressing the bellows pump 10 via the push plate 11. When a desired amount of hot water 3 is obtained, when the hand is released from the pushing push plate 11, the bellows intake valve 12 is opened, the inside of the bellows pump 10 and the inside of the container 2 become atmospheric pressure, and the hot water is stopped.

When the power is connected to the jar pot, when the electric tapping operation button 29 on the top of the lid 6 is pressed, the tapping arm 30 is also pushed down, and the two projecting portions of the arm shaft 31 via the spring are pressed. Project from the lower part of the lid 6. When the projection of the arm shaft 31 protrudes from the lid 6, the upper portion of the switch packing 33 is pushed by the projection of the arm shaft 31, and the switch packing 33 bends. Press the connected microswitch 34. Two micro switches 34
Are pressed, the electric pump control device 47 supplies power to operate the electric pump 36, and the pump water supply pipe 37 through the water outlet at the bottom of the container 2 constituting the electric hot water supply path.
Hot water 3 is drawn into the electric pump 36 and the pump discharge pipe 3
The hot water is fed from the hot water outlet 24 through the hot water supply path 22 to the side 8 and the hot water is continued, and the hot water 3 in the container 2 is discharged from the hot water outlet 24.
Keep on tapping.

At this time, the valve pipe 39 provided between the pump water supply pipe 37 and the pump water discharge pipe 38 has a valve that prevents hot water from flowing from the pump water discharge pipe 38 side to the pump water supply pipe 37 side. You can send hot water.

When the push plate 11 is not depressed or the electric tapping operation button 29 is not depressed, the operating portion of the tapping operation stopper 32 is operated so that the locking convex portion 11a provided on the outer periphery of the push plate 11 is moved. Locking projection 32 provided on the inner periphery of tapping operation stopper 32
a is fitted to stop the operation of the push plate 11, and furthermore, when the electric tapping operation button 29 is operated, the engaging protrusion 30a of the tapping arm 30 which is pushed in is provided on the tapping arm 30 side of the tapping operation stopper 32 at the tapping arm 30 side. Stop projection 32b
Are fitted to lock the electric tapping operation button 29.

Therefore, after the tapping is stopped, when the tapping operation stopper 32 is locked, the push plate 11 and the electric tapping operation button 29 cannot be pushed in, so that safety can be ensured.

[0034]

As described above, according to the present invention, a push plate is provided at the top of the lid to form an air tapping path from the bottom of the container to the tap through the tapping path, and an electric tapping operation button is provided at the top of the lid. An electric tapping path from the bottom to the tap through the electric pump has been configured, so even when the power is not connected, the bellows pump can be compressed by simply pressing the push plate, and the hot water in the container can be taken out from the tap. By repeatedly pressing the bellows pump, a desired amount of hot water can be produced, and when the power supply is connected, pressing the electric hot water operation button activates the electric pump to provide hot water.

Further, since the electric hot water operation button and the push plate are provided on the upper portion of the lid, both can operate the hot water from above without a sense of incongruity. Pot can be provided.

On the other hand, since a tapping operation stopper for locking both the push plate and the electric tapping operation button is provided near the push plate at the top of the lid, when the push plate is not pressed or the electric tapping operation button is not pushed, both of them are used. Has the effect of preventing unexpected accidents.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a jar showing one embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the jar pot.

FIG. 3 is a partial cross-sectional view of a bottom surface of the jar.

FIG. 4 is a control system diagram of the jar pot.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Container 3 Hot water, water (liquid) 4 Heater 6 Lid 10 Bellows pump 11 Push plate 22 Hot water supply path 24 Hot water outlet 29 Electric hot water operation button 30 Hot water arm 32 Hot water operation stopper 36 Electric pump 11a, 30a, 32a, 32b Locking projection

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-68642 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47J 27/21 101

Claims (2)

(57) [Claims] 1. A container (2) built in a main body (1) and a heater (4) for heating hot water (3) in the container (2).
And a lid (6) covering an upper opening of the container (2); and a lid (6).
Bellows pump (10) and body (1)
And an electric pump (36) housed at the bottom of the container (2). A push plate (11) is provided at the top of the lid (6) above the bellows pump (10). (22) An air tapping path is formed from the tap (24) to the tapping port (24). An electric tapping operation button (29) is provided at the top of the lid (6). (22) After the hot spring outlet (24)
A tapping operation stopper (32) that locks both the push plate (11) and the electric tapping operation button (29) near the push plate (11) above the lid (6); Push plate (1
When 1) is pressed, the bellows pump (10) is pressed and compressed to pump air into the container (2) to discharge hot water (3) from the tap hole (24) and to connect the power supply. When the electric hot water operation button (29) is pressed, the electric pump (36) is operated to send out the hot water (3) in the container (2) and to discharge hot water from the hot water outlet (24), and the hot water operation stopper (32) By operating the operation section of the push button (11) and the electric hot water operation button (2)
9) A jar pot characterized in that both of them are locked. 2. An electric tapping operation button (29) and a locking projection (32a) on the inner periphery of the tapping operation stopper (32).
A locking protrusion (32b) is provided on the side, a locking protrusion (11a) is provided on the outer periphery of the push plate (11), and when the electric hot water operation button (29) is operated, the water tapping arm (30) is pushed in. A locking projection (30a) is provided, and by operating the operating portion of the tapping operation stopper (32), the locking projection (32a) is fitted to the locking projection (11a) to push the push plate. When the operation of (11) is stopped and the electric water tap operation button (29) is further operated, the locking projection (30) is operated.
2. The jar pot according to claim 1, wherein a locking projection (32b) is fitted into a) to lock the electric tapping operation button (29).