JPS60174119A - Air type 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 Field of Industrial Application The present invention relates to a pot with an air set that is capable of dispensing a liquid stored in a container by forcefully sending air from a bellows into a container by a pressing operation of a pushing body. It is related to.

Conventional configuration and its problems The hot water temperature is controlled by a temperature controller installed on the side wall, and the hot water temperature in the container is around 92 degrees Celsius, without reaching 100 degrees Celsius, and the water vapor generated from the hot water is It was a small amount. Therefore, there is no need for a special opening in the lid housing the bellows that communicates with the inside of the container, and it would be better if it was opened at the inlet of the bellows. It is necessary to provide a reliable drainage hole for water vapor in the lid.

OBJECTS OF THE INVENTION In view of the above-mentioned drawbacks of the conventional pot, it is an object of the present invention to provide an air pot that reliably discharges water vapor to the outside of the lid when the water in the container boils.

Structure of the Invention In order to achieve the above-mentioned object, the present invention comprises: a pot body housing a container for storing a liquid to be poured; a bellows communicating with the container in an airtight manner; and a pushing body pressing the bellows. A cover that covers the back surface of the pusher body and opens outward from the lid body; and the bellows has an approximately inverted conical taper at one end, and its upper end outer circumferential portion is in contact with the cover. With this configuration, water vapor generated within the container can be reliably discharged to the outside of the lid via the seal backing and the lid cover.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

In Figures 1 to 4, 1 is a bottomed cylindrical container made of stainless steel or the like, and the outer bottom of the container 1 is insulated with an insulating plate made of mica or the like, and is made of aluminum plate or the like. A main heater 2 and an auxiliary heater 3 in the form of a seamed band are integrally attached. A water boiling temperature regulator 4 and a safety temperature regulator 5 are installed on the outer periphery of the container 1 above the main and auxiliary heaters 2 and 3, and a heat-retaining temperature controller 6 and a temperature overrise prevention device are installed on the bottom back side of the container 1. 6a is thermally attached to the container 1.

Reference numeral 7 denotes a mounting tube provided near the upper end of the outer periphery of the container 1 and made of polysulfone resin or the like. At the tip of this mounting tube 7 is a manually reset type thermoswitch 8 for the boiling side leg, which is a vapor detection element. Equipped with This thermoswitch 8 has a heat-sensitive surface 8a exposed inside the mounting tube 7, and is screwed into the mounting plate 1° which is engaged with the mounting tube 7 against the mounting spring 9, which is a compression coil spring, and this mounting plate 10. Thermo presser 11
It is attached so that it communicates with the inside of the container 1 via an O-ring 12 and a thermo-ring 13.

Reference numeral 14 denotes a flange portion extending in the outer circumferential direction at the upper end of the container 1, and is watertightly attached to the spout 16 via the container backing 15 by this flange portion 14.

17 is an inner lid that is detachably provided on the top of the container 1.

This inner lid 17 has an air hole 17& in the upper center, and extends outward from the container 1 from a valve chamber 19 containing a central overflow prevention valve 18, and opens downward at its tip. A pouring pipe 21 having a letter-shaped spout 20 is provided, and a water raising pipe 22 is further provided in communication with the bottom surface of the container 1.

A shielding plate 23 is screwed onto the inner lid 17 so as to cover the lower surface of the inner lid 17, and forms a compartment between the shielding plate 23 and the inner lid 17.

Reference numeral 24 denotes a ventilation nozzle having an abbreviated passage with one end open on the bottom surface of the shielding plate 23, and this ventilation nozzle 24 has a heat exhaust hole 25 with the other end opened on the side wall of the shielding plate 23.
It is placed opposite to. The heat exhaust hole 25 is configured to have a smaller diameter than the vent hole 24a of the ventilation nozzle 24, and the tip of the mounting tube 8 is attached to the side wall of the shielding plate 23 so as to face the vent hole 24a and the heat exhaust hole 26. It is installed almost in close contact with the Reference numeral 26 indicates a plurality of discharge holes provided on the bottom surface of the shielding plate 23, and 27 indicates an inner lid backing that is held between the outer periphery of the inner lid 17 and the shielding plate 23. It is kept airtight.

Reference numeral 28 denotes a lid which can be opened and closed by a pivot 29 at the rear of the spout 16, and a guide tube 3° extending inward and open at the top is provided at the top of the lid 28. Guide tube 3
There are multiple cuts at the bottom of 0/Fik'it'6/-11
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'-141Sq11FE+/Is''?,,-A rib piece 31 is provided, and an inner fledge 32 is installed horizontally in the center direction.Also, an opening window 33 is provided at approximately the center of the front of the lid body 28. Furthermore, a protrusion 34 is integrally formed on the back surface of the inner flange 32 using synthetic resin or the like.

35 is a lid cover that covers the back surface of the lid body 28, and is the upper end of the bellows 37 together with the pump upper plate 36.

The lower ends are attached airtightly by ultrasonic welding or the like to form a pump chamber 378L. 38 is a guide rib 35a of the lid cover 35 and the pump upper plate 36;

Return spring installed between 361L, 39 is pump upper plate 3
The suction port 40 provided approximately at the center of the central protrusion 40 of No. 6
This valve 39 is always urged in the opening direction by a valve spring 41, and by pressing against the spring force of the valve spring 41, the valve 39 is lowered, and the seal ring 42 closes the suction. Close the mouth 40a. 43 is the pump chamber 371
The lid backing has an L spout 43&, which communicates airtightly with the air hole 17a of the inner lid 17 when the lid body 28 is closed.

aaM former currency F military internal flute 30 Fl-lower movement white f is a pusher body provided, and this pusher body 44 has a disc portion 45 with a slightly smaller diameter than the inner diameter of the guide tube 30, and It has a cylindrical portion 46 having a slightly smaller diameter than the inner diameter at the inner end, and a back surface of the disk portion 45 is provided on the outer periphery of the cylindrical portion 46 so as to loosely fit into the notch groove 30a of the inner flange portion 32. A plurality of stoppers 4 extend from the vicinity to the vicinity of the lower end and are erected.
7.

Further, at the lower end of the cylindrical portion 46, a plurality of protruding pieces 48 which protrude radially outward are integrally formed with synthetic resin or the like.

Inside the pushing body 44, the upper end of a substantially inverted conical seal packing 49, which is airtightly provided on the outer periphery flange 3eb of the suction port 40a of the pump upper plate 36 and is formed of an elastic material such as rubber, is 1. A cover 50 is provided which contacts and seals and communicates with the pump chamber 37&, and this cover 50 has a plurality of protruding pieces 50a projecting outward at the lower end of the cover 50, which are connected to engagement holes provided in the cylindrical portion 46 of the pusher body 44. It is engaged and fixed to 461L. Further, this cover 50 is integrally provided with an extension pipe 50b extending to one side, and this extension pipe 50b is connected to a steam hole 441L provided at the rear of the upper surface of the pusher body 44.
It communicates with the outside air and is open to the outside air.

61 is a decorative plate equipped with a steam hole 44a; 52 is a contact lip for the valve 39; and 53 is a plurality of hook pieces 3 provided with a lid 2BVC.
This stopper ring 63 is provided with a plurality of notched holes 53a on the inner diameter side, and is provided with an engaging piece 54 in an extending portion 55 extending on one side.

Reference numeral 56 denotes an operating lever, and this operating lever 66 is curved along the inner wall of the lid body 28, and is provided with an operating knob 57 projecting from the opening window 33 approximately in the middle, and has an operating lever 66 at both ends of its upper end. A contact piece 58 that contacts the outer wall of the guide tube 30 is provided, and the stopper ring 63 is provided at the lower end.
An engaging recess 6o for locking the engaging piece 64 of the extending portion 65, an engaging claw 6Qa, and a guide wall 59 are formed, and these are integrally formed of synthetic resin or the like.

Reference numeral 61 denotes a pair of lock knobs provided on both sides of the tip of the lid body 28, and this lock knob 61 is attached to the −2 vine portion 62 at the lower end.
is engaged with a concave hole (not shown) of the spout 16 to lock the lid body 28. 63 is a lock spring for returning the lock knob 61.

Reference numeral 64 denotes a display plate provided on a pot body 65 in which a container 1 for storing a liquid to be poured is housed, so as to cover the mounting tube 7, and a switch lever 64 for setting the thermoswitch 8 to ON is provided on the display plate 64. 66, a water pouring vibrator 67 that communicates with the spout 2o to pour out the hot water in the container 1, and a water level gauge (not shown) that displays the amount of hot water in the container 1.

As shown in FIG. 4, the electrical circuit in the above configuration is such that a safety temperature regulator 4 and a main heater 2 are connected in series to a parallel circuit of a thermoswitch 8 and a water heater temperature regulator 5, and these are connected to a temperature regulator for keeping warm. The series circuit of the heater 6 and the auxiliary heater 3 are connected in parallel.

Furthermore, an overtemperature rise prevention device 6a is connected in series.

Regarding the air pot configured as shown below,
The operation will be explained below.

First, water is poured into the container 1, and the switch lever 66 is pushed to set the thermo switch 8 to ON, thereby forming a boiling circuit. The temperature rise in each part will be explained with reference to FIG.

When the main and auxiliary heaters 2 and 3 are energized, the water in the container 1 is heated and its temperature rises, but the temperature in the container space B and compartment A formed by the shielding plate 26 rises at a slower rate than the water temperature. becomes.

Furthermore, the temperature of the heat-sensitive surface 8a of the thermoswitch 8 is determined by the shielding plate 26.
Inside the mounting tube T, which is shielded by the temperature, the temperature remains even lower.

As the water continues to heat up and the water temperature in container 1 reaches a temperature of about 95°C (1+ point), a little more steam starts to come out.
The temperature inside the container space B approaches the water temperature.

However, only a weak amount of steam enters the compartment A through the vent hole 24&, and therefore the temperature rises relatively slowly.

At this time, the temperature of the thermoswitch 8 is maintained lower than that of the compartment A.

When the water temperature reaches the boiling point (at time t2), a large amount of steam is suddenly generated and the container space B is filled with it.

Further, steam enters the compartment and the mounting tube 7 through the ventilation hole 24a, rapidly raising the temperature of the thermoswitch 8, which has been set to the OFF temperature of about 80'C to 95C, and turning it off. By turning off this thermo switch 8, the main heater
After the power supply to the heater 2 is cut off, the auxiliary heater 3 is controlled by the heat-retaining temperature regulator 6 to keep it warm.

Furthermore, when the main heater 2 is cut off and steam intrusion stops, the thermo switch 8 lowers the temperature without being affected by the water temperature, and the O
If it turns ON again after falling below the FF operating temperature,
The hot water is heated and boiled, and similarly to the above, the temperature is rapidly raised by steam, and the OFF operation is performed.

After a large amount of steam generated from the hot water in the container 1 enters the mounting tube 7 and the compartment A as described above, it enters the pump chamber 37aiCJj through the air hole 17a and the lid backing 43, and then enters the seal backing from the suction port 40+&. 49 and cover 5
0 and is discharged out of the vessel from the steam port 44&.

When pouring out hot water in the container 1, first press the operation knob 57.
Rotate to release the restriction on the pushing body 44.

When the pushing body 44 is pressed, the valve 39 is closed by the abutting lip 52 of the cover 60, and air is forced into the container 1 through the pump chamber 37a. The air forced into the container 1 causes the hot water to flow through the rising pipe 22. Valve chamber 19, spout pipe 21, spout 2o
The water is then poured out from the water injection pipe 67.

In the above-described pressing operation of the pushing body 44, since the seal backing 49 is made of an elastic body such as rubber, the valve 3
According to the embodiment of the present invention, the steam generated in the container 1 enters into the lid 28. without doing.

Pump chamber 37a, seal backing 49 and cover 5
The steam is reliably discharged from the steam port 44a to the outside of the vessel through the steam port 44a.

Furthermore, since the seal backing 49 that airtightly communicates the pump chamber 371L and the cover 50 is formed in a substantially inverted conical shape, the amount of deformation caused by the operation of the pusher 44 is small! l1%
As a result, the operating force of the pusher 44 increases, and furthermore, the operation of the valve 39 becomes incomplete. It flows into the tapered surface of the pump chamber 37&, further flows into the tapered surface of the lid cover 35 and flows into the inner lid 17 and container 1, and flows into the lid body 28.
It must be something that can prevent condensation from forming inside.

Very hygienic.

Although the embodiment of the present invention has been described in which the steam port 44& is provided on the upper surface of the pusher 44, it goes without saying that the same effect can be obtained even if the steam port 44& is provided on the side surface of the lid 28.

Furthermore, although a steam path groove structure in which a part of the cover is extended and communicated with the steam port has been described, it is also possible to connect the cover directly to the steam port.

Effects of the Invention As described above, according to the present invention, there are provided a pot body housing a container for storing a liquid to be poured, a bellows that communicates airtightly with the container, a pusher that presses the bellows, and a pusher that presses the bellows. a cover that covers the back side of the body and opens outward from the lid;
The structure includes a seal backing provided at the upper end 1 of the bellows, which has a substantially inverted conical taper, and whose upper end outer periphery is brought into contact with the cover. This allows the generated steam to be reliably discharged outside the vessel.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of an air set pot showing an embodiment of the present invention, Fig. 2 is a cross-sectional view of the main parts, Fig. 3 is a plan view of the main parts, and Fig. 4 is an electric circuit diagram of the same. , FIG. 6 is a temperature-hour characteristic diagram of the same pot. 1...Container%28...Lid, 37...
...Bellows. 44... Push body, 44 &... Steam port%
49... Seal backing, 50...
Cover, 66... Pot body. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 3, Figure 4, Figure 6a.

Claims (1)

[Claims] A pot body that houses a container for storing the liquid to be poured, a bellows that communicates airtightly with the container, a pusher that presses the bellows, and a pusher that covers the back side of the pusher and extends outward from the lid. An air bot comprising a cover that opens, and a knoll backing that is provided at the upper end of the bellows, has a substantially inverted conical taper, and has its upper end outer periphery abutted against the cover.