JP2002330868A - Shoulder member fitting structure of heat insulating vessel and electric hot water storage vessel using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate assembling without restricted by other materials in fitting a shoulder member and to form it convenient for repairing. SOLUTION: When a shoulder member 6 formed with a vessel body opening 12 communicated with a mouth part opening 3f is fitted to an heat insulating vessel 3, the shoulder member 6 is fitted thereto via a clamp 71 fitted to the outer circumference of the mouth part opening 3f of the heat insulating vessel 3, a cover member 73 covering a fitting part 66 is made to cover over the fitting part 66 of the shoulder member 6, and sealing members 74 and 77 are provided between the cover member 73 and the shoulder member 6 and between the cover member 73 and the heat insulating vessel 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a shoulder member forming a body opening to a heat insulating container such as a metal vacuum double container, and an electric hot water storage container using the same. And is used, for example, for home electric pots.

[0002]

2. Description of the Related Art Electric pots are widely used in homes, offices, cafeterias, and the like, and are sometimes in use all the time.
On the other hand, as energy conservation is called out in terms of environmental issues and resource saving, high power consumption by heaters in electric pots has been targeted for improvement.

In view of the above, an electric pot having a vacuum double container a as a heat insulating container as shown in FIG. 18 has been provided. The power consumption of the heater c when the heated content liquid is kept at a predetermined temperature is reduced.

In the conventional electric pot shown in FIG. 18, a narrowed portion f in which an inner cylinder e extends inward at a mouth portion d of a vacuum double container a and a wraparound portion in which a vacuum space b of a body portion wraps around a bottom portion. And a container i having such a vacuum double container a housed in an outer case h to form a container i and communicating with an opening d of the vacuum double container a in the container i. Body opening j
Is provided with a lid k which covers this and extends to the mouth d of the vacuum double container a. This makes it possible to secure a normal heat-retaining state of about 90 ° C. that can be practically used even when two hours have elapsed after the heating by the heater c is stopped after boiling.

On the other hand, a heat insulating container such as a vacuum double container a is provided with a mounting portion q for opening and closing the lid k and a large container opening j suitable for supply and discharge of a liquid content. Or difficult to do. Therefore, the basic structure is such that a shoulder member o made of, for example, a synthetic resin is provided separately from the vacuum double container a to form the attachment opening q of the body opening j and the lid k. Conventionally, in order to attach such a shoulder member o, the shoulder member o was placed on the upper end of the outer case h, and the mouth portions of the inner cylinder e and the outer cylinder m were welded to the vacuum double container a. An outward flange n around the mouth d is provided, and the flange n is placed on an upward step p of the shoulder member o as shown in FIG. The bottom of the outer case h is connected to the bottom of the outer case h by a connecting metal fitting (not shown) and attracted to each other, and the vacuum double container a, the outer case h, and the shoulder member o are integrally assembled by this attraction force.

[0006]

However, in the above-described structure for mounting the shoulder member o, the presence of the outer case h and the structure for attracting the vacuum double container a to the outer case h are essential for mounting the shoulder member o. Therefore, the degree of freedom of design is low, which is inconvenient. In addition, since the three members including the shoulder member o are not integrated unless the connection between the vacuum double container a and the outer case h is completed, a complicated handling operation is required for assembly,
It requires skill. Further, if the vacuum double container a and the outer case h are disconnected for repairing around the heater c, the shoulder member o is also separated and the hand is shaken carelessly. A lid k in which the connection between the operation board r inside the operation panel of the member o and the side of the body i swings.
There is also a problem that secondary failure is likely to occur due to pulling.

An object of the present invention is to provide a shoulder member mounting structure for an insulated container which is easy to assemble without any restrictions on the mounting of the shoulder member and is convenient for repair, and an electric hot water storage container using the same.

[0008]

In order to achieve the above-mentioned object, a shoulder member mounting structure for an insulated container according to the present invention has a shoulder member formed with a body opening which communicates with an opening of the heat insulating container. In the object, a shoulder member is attached via a mounting bracket attached to the outer periphery of the opening of the heat insulating container, a cover member covering the mounting portion of the shoulder member is covered, and the cover member and the shoulder member and the heat insulating container are connected to each other. It is characterized in that a seal member is provided between each.

[0009] In such a configuration, the shoulder member is attached via the mounting bracket provided around the outside of the mouth opening of the heat insulating container, so that the communication between the mouth opening of the heat insulating container and the container opening formed by the shoulder member is conventionally performed. As a result, it can be easily and reliably mounted without any other restrictions, and the inconvenience of disassembling other parts due to repair or the like is eliminated. In addition, since the mounting portion of the shoulder member is covered by the cover member, the mounting portion is not externally viewed, so that the mounting portion can be designed without any problem in external appearance, which is convenient. Furthermore, since the space between the cover member and the heat insulating container and the shoulder member is sealed by the seal member, even in the above-described mounting structure, the water leaking part is formed in the mouth opening of the heat insulating container and the body opening of the shoulder member. There is no problem in use because there is no. .

[0010] The shoulder member and the cover member can be attached to the mounting bracket, and the shoulder member and the cover member can be screwed to the mounting bracket using a common screw. The number of operations is halved compared to the case of stopping.

[0011] Alternatively, the shoulder member may be screwed to the mounting bracket from above, and the cover member may be elastically engaged or forcibly fitted to the shoulder member side by the covering. According to this, the cover member is screwed to the cover member. It can be attached by a simple operation of adding a cover in one behavior involving elastic engagement or forced fitting, and the screwed part does not have an appearance, so the appearance is good, and the screwed part does not need to be sealed There are advantages.

In a configuration in which at least one of an insulating gap is provided between the heat insulating container and the cover member, between the cover member and the shoulder member, and between the shoulder member and the heat insulating container, heat is transmitted from the heat insulating container to the external member. It is possible to prevent transmission and escape in proportion to the number of insulation gaps.If the insulation gap is not visible, it may be a gap. What is necessary is just to make it the heat insulation gap which inserted the member.

In the configuration in which the heat insulating material is provided between the shoulder member and the heat insulating container, the heat insulating property can be improved by increasing the heat insulating property particularly around the upper portion of the heat insulating container where heat can easily escape.

In a configuration in which the outer diameter of the cover member is smaller than the outer diameter of the body of the heat insulating container, the amount of biting into the region of the shoulder member is reduced so that the space between the shoulder member and the heat insulating container can be increased. Therefore, the heat insulating power can be further increased by increasing the thickness of the heat insulating material provided there.

[0015] When the cover member is a heat insulating member, the heat retaining power can also be increased.

In the configuration in which the upper surface of the cover member has a downward slope toward the inner peripheral side, even if water falls or flows on the cover member, the water flows toward the mouth opening side of the heat insulating container due to the gradient. Since the guide is provided, it is possible to prevent water from accumulating on the cover member.

In a configuration in which the body opening of the shoulder member is continuous with the upper surface of the cover member descending from the inner periphery to the center side, all of the water that is contained in or enters the body opening formed by the shoulder member. It can be guided so as to flow to the cover member by the descending, and thereafter can reach the mouth opening of the heat insulating container by the guide of the cover member, such that water accumulates in the body opening including the cover member. Can be avoided.

In the configuration in which the direction indication for instructing the direction of drainage is given on the upper surface of the cover member, the upper surface of the cover member can be displayed on the upper surface which is different from both the heat insulating container and the shoulder member so as to be conspicuous. It is easy to recognize, and the upper surface of the cover member is located annularly around the mouth opening of the heat insulating container, and a display is provided corresponding to the position and direction to be drained, so it is possible to give instructions accurately and dislike water Appropriate drainage can be ensured to be protected, avoiding the area around the electricity and the lid attachment that disturbs the water flow.

Since the drainage direction indication display portion is provided at a position not directly above the AC power supply connection portion provided at the lower part of the side surface around the outer periphery of the container, the contents of the AC power supply connection portion which splatter or fall upon drainage. It can prevent the liquid from spreading.

In the configuration of the electric hot water storage container having the shoulder member mounting structure of the heat insulating container according to each of the inventions described above and heating the content liquid by applying a heater to a non-heat insulating portion of the heat insulating container, The electric hot water storage container with the shoulder member attached alone by exhibiting the features of the above features, increases the heating efficiency by heating with the heater in the non-insulated part, and is high in various heat insulation structures including the heat insulation container Power saving can be achieved by heat retention.

Further objects and features of the present invention will become apparent in the following detailed written description. Each feature of the present invention can be used alone or in combination as variously as possible.

[0022]

FIG. 1 to FIG. 17 show an embodiment of the present invention.
The present invention will be described in detail with reference to FIGS.

The present embodiment is an example of a household electric pot, and has a structure in which a stainless steel vacuum double container is housed in an outer case as an insulated container. However, the present invention is not limited to this, and the use, the specific configuration of the heat insulating container, and the presence or absence of the outer case can be freely selected. However, stainless steel has low thermal conductivity among metals, has sufficient bending rigidity and strength, and has a rust-preventive effect, and is therefore suitable for an electric hot water storage container for beverages.

As shown in FIG. 1, the electric pot of this embodiment is a metal vacuum double container 3 composed of a stainless steel inner cylinder 4 and an outer cylinder 5, and a liquid in the inner cylinder 4. A heater 11 applied to the single bottom 3c of the vacuum double container 3 so as to heat the outer case 2 made of synthetic resin.
To form a vessel 1. As described above, since the vacuum double container 3 is made of a metal having high bending rigidity and high strength, the wall thickness and the layer of the vacuum space 63 are small and slim, while exhibiting a high heat retaining power in combination with the material. . However, the vacuum double container 3 may be configured such that its body is exposed to the outside to form the container 1. A discharge path 25 for discharging the content liquid to the outside of the container 1 is connected to the single bottom portion 3c of the vacuum double container 3, and the discharge path 25 rises between the vacuum double container 3 and the outer case 2 to form the container. The discharge port 25d faces the front part of No. 1. An electric pump 26 is provided in the middle of the discharge path 25 so that the content liquid can be discharged electrically. Along with this, a manual bellows pump 50 is provided on the lid 13 that covers the container opening 12 of the container 1 that can be opened and closed, which communicates with the mouth 3 a of the vacuum double container 3.
By a pressing operation by the pressing plate 61, pressurized air is blown into the vacuum double container 3 to pressurize the content liquid so that the liquid is extruded through the discharge path 25 and discharged to the outside.

The rising portion 25a of the discharge path 25 is a transparent tube, and the liquid volume there is displayed on the liquid volume display window 6 shown in FIG.
2 so that you can see through. However, the liquid amount of the content liquid can be detected and displayed stepwise by a photocoupler or the like in the rising portion 25a, and used as liquid amount data for various controls. Further, the automatic detection of the liquid amount may be performed by a capacitance method,
The liquid amount can also be automatically detected based on the temperature rise characteristics when heating in step 1 and the temperature decrease characteristics when heating of the heater 11 is stopped.

The vacuum space 63 between the inner and outer cylinders 4 and 5 is formed in the inner and outer cylinders 4 and 5 which have been welded and joined, as shown in FIG. Hole 1
It is formed by evacuating through 01 and sealing with a sealing material. The evacuation is performed in a heating furnace in a vacuum state. In the vacuum space 63, one or more getters 102 as shown in FIG.
The gas generated over time in the chamber 3 is absorbed so that the degree of vacuum in the vacuum space 63 is not reduced.

The lid 13 is formed with a vapor passage 17 for letting the vapor from the vacuum double container 3 escape to the outside. The lid 13 has an inner opening 17a at a position facing the inside of the vacuum double container 3 and an outer surface exposed to the outside. It communicates with the formed outer opening 17b. In the middle of the steam passage 17, a safety path 17c is provided for temporarily storing or bypassing the content liquid when the container body 1 rolls over and enters, thereby delaying the liquid from reaching the outer opening 17b. This makes it possible to take measures such as raising the container 1 before the container 1 rolls over and the content liquid flows out through the vapor passage 17 to the outside. Further, in the steam passage 17, when the body 1 rolls over, a water stop valve 18 at the time of overturning, which works by its own weight or the like so as to try to enter the steam passage 17 or to prevent the entered liquid from proceeding ahead, is provided in place. Is provided. In the illustrated embodiment, it is provided at one location just inside the inner opening 17a.

At the front of the lid 13, there is provided a lock member 21 which engages with the locking portion 19 on the shoulder member 6 side at the closed position to lock the lid 13 at the closed position, and when the lid 13 is closed. The spring 22 always projects to the locked position by the bias of the spring 22 so as to automatically engage with the locking portion 19. Correspondingly, the lid 13 is provided with a lock release member 23 for retreating the lock member 21 to release the lock. As shown in FIG. 1, the lock releasing member 23 is of a lever type pivotally supported on the lid 13 by a shaft 24, and the front end 23a is depressed with a thumb or the like and rotated counterclockwise to turn the lock member 21 into a spring. The unlocked lid 13 can be lifted and opened by pulling up the rear end 23b raised by the unlocking operation with another finger to retract the unlocked lid 13 by retracting it against the lock 22.

Here, the shoulder member 6 is made of synthetic resin, and forms the vessel opening 12 which communicates with the mouth opening 3f formed by the mouth 3a of the metal vacuum double container 3. At the same time, there is provided a mounting portion 66 for mounting the lid 13 so that the lid 13 can be opened and closed.
The beak is also formed on the upper surface of the protruding portion 31 protruding forward.

In this embodiment, the shoulder member 6 is provided on the body 1 having the vacuum double container 3 as a heat insulating container. As shown in FIGS. 4 and 5, the shoulder member 6 is attached via a fitting 71 provided by welding or the like, and a cover member 7 covering the attachment portion 66 of the shoulder member 6 is provided.
3 and seal members 74 and 77 are provided between the cover member 73, the shoulder member 6 and the vacuum double container 3. As described above, since the shoulder member 6 is attached via the attachment metal member 71 provided around the opening 3f of the vacuum double container 3, the opening 3f and the shoulder member 6 formed by the vacuum double container 3 are formed. The connection with the body opening 12 can be maintained as usual, and the attachment can be easily and reliably performed without any other restrictions. In addition, the inconvenience of being affected by disassembly of other parts due to repair or the like is eliminated. In addition, since the mounting portion 66 of the shoulder member 6 is covered with the cover member 73, the mounting portion 66 is not externally viewed, and the mounting portion 66 can be designed without any external problems, which is convenient. Further, since the space between the cover member 73 and the vacuum double container 3 and the shoulder member 6 is sealed by the sealing members 74 and 77, the opening 3f of the vacuum double container 3 can be provided even in the above-described mounting structure. Since there is no water leaking part between the body opening 12 and the shoulder member 6, there is no problem in use.

As shown in FIG. 5, the shoulder member 6 can be attached to the mounting bracket 71 together with the cover member 73, and the shoulder member 6 and the cover member 73 share the screw 72 as in the example shown in FIG. Then, it may be screwed to the mounting bracket 71. Even if there are a plurality of screwing locations, the number of operations is reduced by half as compared with a case where the shoulder member 6 and the cover member 73 are individually screwed. However, the hook member 73c integrally formed with the cover member 73 is elastically engaged or forcibly fitted to the mounting member 71 as shown in FIG. In this case, there is an advantage that the mounting operation is most simplified, and the mounting members such as the screws 72 and the mounting structure are not seen. It is necessary to seal the screwed portion by the screw 72 with a seal member 201 provided as shown in FIG. 5, for example.

In the example shown in FIGS. 1 to 4, the shoulder member 6 is screwed to the mounting bracket 71 from above by a screw 72, and the cover member 73 is elastically engaged or forcibly fitted to the shoulder member 6 by the covering. This elastic engagement or forced fitting is performed by the above-described hook piece 73c. More specifically, the cover member 73 has the mounting flange 6a formed on the inner circumference directly applied to the mounting bracket 71, and further applies a washer ring 75 made of metal and having an L-shaped cross section, and from the washer ring 75 side. It is screwed with a screw 72 that has passed through to the mounting bracket 71. The cover member 73 has hook pieces 73c extending downward at several places in the circumferential direction as shown in FIG. 15, and these hook pieces 73c are provided with holes 75a formed in the washer ring 75 and the mounting flange 6a as shown in FIG. 6d is inserted from above, and at its final insertion position is prevented from coming off by elastic engagement or forcible fitting with the opening edge of the hole 6d,
It is attached by one behavior of covering.

Thus, the screwing of the shoulder member 6 with the screw 72 can be performed by a simple operation in which the cover member 73 is covered in one action with elastic engagement or forcible fitting. There is an advantage that the appearance is good because the part is not externally visible, and the screwed part does not need to be sealed.

Between the vacuum double container 3 and the cover member 73,
Heat insulation gaps S are provided between the cover member 73 and the shoulder member 6 and between the shoulder member 6 and the vacuum double container 3 as shown in FIGS. It is effective to have at least one such heat insulating gap S, and it is possible to prevent heat from being transmitted from the vacuum double container 3 to the external member and escape in proportion to the number of the heat insulating gaps S, and the appearance is not obtained. A space may be used as long as it is a heat insulating gap S, or a part to be seen may be a heat insulating gap in which sealing members 74 and 77 made of rubber or the like are interposed as heat insulating members as shown in the figure to prevent water leakage.

Further, even if a heat insulating material is provided between the shoulder member 6 and the vacuum double container 3, the heat insulating ability around the upper portion where heat can easily escape can be improved, and the heat retaining power can be improved. In this case, particularly, when the outer diameter of the cover member 73 is set to be equal to or less than the outer diameter of the body 3b of the vacuum double container 3 as shown in the examples of FIGS. Since the space between the shoulder member 6 and the vacuum double container 3 can be increased by reducing the amount of biting into the region of the shoulder member 6, the thickness of the heat insulating material provided there is increased to increase the heat retaining power. Can be even higher. In addition, the heat retaining force can be enhanced even when the cover member 73 is made of a foamed resin and is a heat insulating member.

Further, in this embodiment, since the upper surface of the cover member 73 has a downward slope toward the inner peripheral side as shown in FIGS. 3 to 5, water falls or flows on the cover member 73. Also, since the water is guided by the gradient so as to flow toward the opening 3 f of the vacuum double container 3, it is possible to avoid the accumulation of water on the cover member 73. At the same time, the body opening 12 of the shoulder member 6 extends downward from the inner periphery toward the center and is continuous with the upper surface of the cover member 73, and is inserted into the body opening 12 formed by the shoulder member 6, or All the water that has entered is guided to flow to the cover member 73 by the above-mentioned descent, and the cover member 73
By the above guide, it is possible to reach the mouth opening 3f of the vacuum double container 3, and it is possible to prevent water from accumulating in the container opening 12 including the cover member 73.

Also, as shown in FIG.
Direction indication 2 such as an arrow 202 indicating the direction of drainage and characters 203 such as “drainage” indicating the meaning on the upper surface of
04 is given. As described above, the direction indication display 204 can be displayed on the upper surface that is easily visible by the cover member 73 different from both the vacuum double container 3 and the shoulder member 6 and can be easily recognized by the user. Further, the upper surface of the cover member 73 is annularly positioned around the outer opening 3f of the vacuum double container 3, and a display is provided corresponding to a position and a direction to be drained. Therefore, it is possible to ensure that appropriate drainage is avoided while avoiding the surroundings of the operation panel 32 and the like, which disturb the water flow, and the attachment portion 66 of the lid 13 that disturbs the water flow. In the electric pot shown in FIG. 16, it is preferable that the constricted portion 205 formed by the operation panel 32 rising from the upper end of the container opening 12 be used as a drainage path.
The constricted portions 205 are provided on both the left and right sides of the operation panel 32. In many cases, the dominant hand tilts the pot and the non-dominant hand supports the tiltable pot, and it is not certain which person uses the constricted portion. It is preferable that the direction indication display 204 is provided on both the left and right sides. Further, as shown in FIG. 16, the drainage direction indication display unit 204 is provided at a position that is not directly above the AC power supply connection unit 211 provided at the lower part of the outer periphery of the body 1, so that the AC power supply connection unit 211 is provided. It can be prevented that the contents liquid which splatters or flows down at the time of drainage reaches the drainage.

The electric pump 26 is a centrifugal pump and is provided immediately below the vacuum double container 3, and discharges the content liquid flowing from inside the vacuum double container 3 through the discharge passage 25 to the outside of the body 1. Feed to outlet 25d, discharge outlet 25d
And discharged for use.

In a space 79 between the bottom 2 a of the outer case 2 and the bottom of the vacuum double container 3, a circuit box accommodating the electric pump 26 and the control board 27 for controlling the power supply to the heater 11 and the electric pump 26. 28 are installed.
In the illustrated embodiment, the circuit box 28 is provided integrally with an opening at the bottom of the outer case 2. The circuit box 28 is provided with a lid 160 which opens downward and closes it. A temperature sensor 29 is applied to the center of the single bottom 3c of the vacuum double container 3 from below, detects the temperature of the content liquid at each time, and controls the temperature when heating and controlling the content liquid in a water heating or heat retention mode. get information. The outer case 2 and the vacuum double container 3 may be integrated by connecting the bottom portions as in the related art, or another connecting structure may be employed.

On the operation panel 32, an operation section such as a mode setting, a display corresponding to an operation, or a display indicating an operation state is provided. An operation board 33 for transmitting and receiving signals corresponding to the operations and displays is provided below, that is, inside, the operation panel 32, and can be operated from outside or displayed to the outside in cooperation with the operation panel 32. To do. The upper part of the discharge path 25 is formed between the protruding part 31 of the body 1 and the pipe cover 2d on the side of the outer case 2 to form an inverted U-shaped unit 25c. A valve 134a, a forward lean stop valve 134b, and a discharge port 25d are provided. Discharge port 25d
Open downward to the outside through the pipe cover 2d.

A cover plate 36 is applied to the opening 2c at the bottom 2a of the outer case 2 from below by screwing or partially engaging the cover plate 36, and a rotary seat ring 37 rotates around the outer periphery of the cover plate 36. It is provided so as to be supported as possible, so that when the body 1 is fixed on a table surface or the like, it can be rotated slightly on the rotary seat ring 37 to change its direction.

After the power supply is turned on, the control board 27 is temporarily boiled from the viewpoint of sanitation of the contents liquid and the removal of the smell of scum, or the scum is removed by continuing the boiling, and then the temperature detected by the temperature sensor 29 is reduced. Heating of the heater 11 is stopped until a predetermined heat retention temperature is reached, and when the predetermined heat retention temperature is reached, the predetermined heat retention temperature is maintained by intermittent heating by the heater 11 or heating with a small current-carrying capacity.

The heat retention temperature can be selected by operation on the operation panel 32. 98 ° C. which can be used immediately for coffee, tea, green tea or the like, or can be used after being instantly reboiled.
The high temperature insulation of about 90 degrees C, the normal insulation of about 90 degrees C slightly lower than that, the low temperature insulation of about 60 degrees C suitable for gyokuro and melting of baby's milk, etc. are to be selected. In addition, there is also a thermos holding mode in which the content liquid is boiled to keep the temperature without heating by the heater 11. On the other hand, a rest timer mode in which the content liquid is poured out by the electric pump 26, and the timer is set such that the water content ends at a predetermined time, such as when the content liquid returns home or when the user wakes up, or is kept in a predetermined heat retaining state. In addition, a kitchen timer for counting and informing cooking time such as instant noodles and the regenerating time of frozen food, and a lock mode for dispensing to prevent inadvertent dispensing of a liquid content are selectively set. Further, a release operation for releasing these setting states is also performed.

By the way, when the content liquid boiled in the electric pot having the vacuum double container 3 is left without being heated by the heater 11, the heat retention characteristics in the thermos holding state are shown by lines in FIG. It is almost inversely proportional to the size of the opening diameter D of 3a. The line indicates the temperature drop width of the content liquid after 2 hours, and is about 5 ° C. for 120 mm, about 10 ° C. for 145 mm, and about 17 ° C. for 180 mm.

Therefore, the opening diameter D of the mouth 3a is set to 14
When it is set to less than 5 mm, it is possible to temporarily improve the heat retaining power, which is the object of the present invention, and it is preferable to minimize the opening diameter D of the mouth 3a from the viewpoint of increasing the heat retaining power. But it has its limitations. For example, considering that the inside of the vacuum double container 3 is to be cleaned and wiped, it is limited to about D = 80 mm for an adult person's hand, particularly a fist to enter, and to work when D = about 100 mm. When D exceeds about 120 mm, work becomes free.
When the relationship between the opening diameter D and the quality of the careability is determined, this is shown by the line in FIG.

Further, the portion of the lid 13 accommodating the bellows pump 50 is made to enter the mouth 3a as an entrance 13a as shown in FIGS. It is possible to keep heat away from the outside of the mouth 3a as much as possible to prevent heat from escaping to the upper part and to prevent the lid 13 containing the bellows pump 50 from protruding significantly outward, but to secure a discharge flow rate that is practically acceptable. When the opening diameter D is less than 120 mm, it is difficult to move the entrance portion 13a into the mouth 3a with respect to the bellows pump 50, and when the opening diameter D is less than 100 mm, the bellows pump 50 is over the mouth 3a. Can be placed only on the
Swells outward and causes the electric pot to become large. When the relationship between the opening diameter D of the mouth 3a and the quality of miniaturization is evaluated, the relationship is shown by a line in FIG.

The portion where the opening diameter D of the mouth 3a is smaller than that of the body is formed by drawing. However, the smaller the opening diameter of the mouth 3a, the more difficult the drawing process. After welding, it becomes necessary to integrate them, which causes an increase in cost, reduces the yield and reliability due to cracking even if drawing can be performed, and takes time to process even if the yield and reliability can be secured. It may cause cost increase. For example, JIS SUS30
4. With respect to the inner cylinder 4 made of a material such as SUS436, if the opening diameter D of the mouth 3a is set to 120 mm or less by drawing from a body diameter of 180 mm, it is necessary to separate and process the body and the drawn part. FIG. 1 shows the relationship between the opening diameter D and the quality of processing due to the difficulty of processing.
7 is indicated by a line.

In order to apply a fluorine coating or a polishing treatment to the inner surface of the inner cylinder 4, instruments such as a gun and a nozzle must be inserted, and in order to perform a uniform treatment, the instruments can be freely moved. is necessary. Therefore, the mouth 3a
The smaller the opening diameter D is, the more difficult the process is, and even if the process can be performed, there is a problem that it takes a long time or the process cannot be performed uniformly. Further, in the step of blasting the inner surface before the fluorine coating and roughening the inner surface to increase the adhesion of the fluorine coat layer, the blast material sprayed into the inner cylinder 4 is
It is difficult to return to the outside and workability deteriorates. For example, when the opening diameter D of the mouth 3a is less than 100 mm, the gun for spraying the coating material does not enter the inner cylinder 4 and the fluorine coating becomes impossible. When the relationship between the opening diameter D and the quality of processing or processing of the inner surface of the inner cylinder 4 due to difficulty is evaluated, the relationship is as shown by a line in FIG.

Comprehensively judging the relationship between the heat retention characteristics shown in the above-mentioned lines and various good / bad properties, it can be considered that the maintenance, miniaturization, drawing workability and cost performance, and the processing and processing of the inner surface of the inner cylinder 4 are improved. Easiness is a satisfactory limit 1
Preferably, the lower limit of the opening diameter D is 20 mm. In addition, when the opening diameter D is 140 mm, as described above, the temperature drop width after about 2 hours is about 8 ° C.
Degree C., and the temperature drop width after 2 hours in the conventional case where the opening diameter D is 145 mm is about 10 ° C., and the sufficient liquid holding temperature is about 90 ° C. for the content liquid temperature. It is preferable because the improvement is seen. In the case of an electric pot having a capacity of 3 L, the power saving was about 6500 yen per year in the past, but when the opening diameter D was 140 mm, the heater 11 was energized until the liquid content reached the same practical temperature of about 90 ° C. as in the conventional case. If you leave it stopped, you save more than 7000 yen.
This will reach the commodity price in three years and recover.

However, factors that determine the upper limit of the opening diameter D include, in addition to the various characteristics of the actually measured data, public energy saving standards, user's desired items such as a user card and Internet information, an air conditioner, a television, a refrigerator, and the like. There are various factors such as comparison with power consumption with other home appliances and energy saving rate.

Further, as shown in FIG.
If the outside diameter of the mouth 3a is smaller than the body diameter of the outer cylinder 5 forming the vacuum double container 3, the outside diameter is reduced by utilizing the fact that the opening diameter D of the mouth 3a is small. Thus, the volume around the mouth 3a can be reduced, which contributes to further downsizing of the body 1. In this embodiment, in particular, the outer diameter of the mouth 3 a of the vacuum double container 3 is smaller than the body diameter of the inner cylinder 4. Thereby, the volume around the mouth 3a can be further reduced.

As described above, the opening diameter D of the mouth 3a is set to a size which can be obtained by an adult and has a visual field range θ as shown in FIG. 2 where the full water level indicator 67a can be seen. Is preferred. It is preferable that the visual field range θ includes the position of the eyes when performing an operation while viewing the operation panel 32. In the illustrated embodiment, a full water level indicator 67a is formed as an embossed line on an embossed wall 4n in which a part of the body 4m of the inner cylinder 4 is embossed inward, thereby satisfying the view range θ. Moreover, an upward arrow 67b is provided below the full water level indicator 67a, which is easier to see than the full water level index 67a, and a character display 67c is formed to indicate that the full water level index 67a exists in the direction of the arrow 67b. It is easy for the user to protect the water from exceeding the full water level. In particular, in a design in which the full water level is sufficiently smaller than the body diameter of the vacuum double container 3, even if the inner diameter of the mouth 3a is set to be substantially the same as or smaller than the full water level, heat can escape from the mouth 3a. It is easy to suppress and the heat retention is improved.

In this embodiment in which the outer diameter of the mouth 3a is reduced as described above, the joint between the mouth 4a of the inner cylinder 4 and the mouth 5a of the outer cylinder 5 forming the vacuum double container 3 is further improved. Part 64
However, as shown in FIG. 1 to FIG.
Are located on the outer diameter side of the open end of the. This allows
Mouth 3a for reducing opening diameter D of mouth 3a as well as outer diameter
The inner pipe 4 and the outer pipe 5 share the drawing shape, and the drawing shape is not concentrated on one of the inner and outer pipes 4, 5, so that it is easy to process, which is advantageous in terms of material and processing work, and is cost effective. Reduction can be achieved. JIS SUS for both inner and outer cylinders 4 and 5
304, SUS436 or the like can be used without any problem.

As the outer diameter of the opening 3a is reduced, an annular space 65 is formed around the opening 3a between the outer diameter of the opening 3a and the outer diameter of the body 3b of the vacuum double container 3. Utilizing the shoulder member 6 and the vacuum double container 3 as shown in FIGS.
Is provided. Thus, the shoulder member 6 which is arranged on the shoulder 3d of the metal vacuum double container 3 and easily gives a required shape around the body opening 12 of the body 1 communicating with the mouth 3a is attached. An annular space 6 is formed around the mouth 3a between the outer diameter of the body and the outer diameter of the mouth of the vacuum double container 3 by attaching the attachment portion 66 between the member 6 and the vacuum double container 3.
5, a special space for the mounting portion 66 is not required, the body 1 does not become bulky, and the opening 3a is provided.
It is suitable for providing a mounting portion 66 which has a sufficient space around the mounting portion and has a necessary mounting strength and a sealing portion and is easily bulky, and is provided with other necessary components. Since the shoulder 3d is horizontal, the mounting metal 71
Both the shoulder member 6 and the shoulder member 6 can be achieved with a simple shape.

The mounting portion 66 of the shoulder member 6 is provided by utilizing the annular space 65, so that a special space for mounting the shoulder member 6 to the vacuum double container 3 is unnecessary, and the body 1 is not bulky. In addition, a space around the opening 3a can be provided with a sufficient space, and the heat insulating material can be provided between the shoulder member 6 as described above, and the thickness of the heat insulating material can be increased to improve the heat retaining power. It is suitable for installing necessary items. The cover member 7 covering the mounting portion 66 of the shoulder member 6
Reference numeral 3 denotes a hook-shaped cross section of the inner periphery of the joint 64 between the inner cylinder 4 and the outer cylinder 5 at the mouth 3a of the vacuum double container 3 as shown in the examples of FIGS. The seal member 77 is sandwiched between the two for sealing. Seal member 77
The inner peripheral side is fitted into the mouth portions 4a, 5a which are the joining portions 64 of the inner and outer cylinders 4, 5. Cover member 73 and shoulder member 6
The seal member 74 between the cover member 73 is fitted in a groove 73a formed on the outer periphery of the cover member 73, and has a seal lip 74a pressed against the inner peripheral surface 6b on which the mounting flange 6a of the shoulder member 6 is formed.

Also, as shown in FIGS. 1 and 2, the lid 13 for opening and closing the body opening 12 of the body 1 communicating with the mouth 3a can be opened and closed using the annular space 65. An attachment portion 66 for attaching the lid 13 by hinge connection is provided. By providing the mounting portion 66 of the body 1 using the annular space 65 in this manner, a special space for the connecting portion 15 for hinge-connecting the lid 13 is not required, and the body 1 is not required.
The stopper 6 is not bulky, has a sufficient space around the mouth 3a, and is a movable portion for attaching and detaching the lid 13.
It is suitable for providing a complicated and easily bulky connecting portion 15 such as having 8, or for attaching other necessary components. Conventionally, as shown in FIG. 18 due to a complicated and bulky connecting portion, and projecting from the outer surface of the body 1 as shown by a virtual line in FIG.
The connecting portion 15 that does not protrude from the trunk portion 2b as shown by the solid line in FIG. 16 can be easily formed, and the appearance can be simplified.

In the example shown, the stopper 68 is urged upward by a spring 69 as shown in FIG.
5, the horizontal opening 171a of the concave portion 171 fitted with the hinge pin 16 is always closed. This allows
Even if the lid 13 is set to the open position where it is removed from the mouth 3a and the body opening 12 of the body 1 and the hinge pin 16 is moved so as to be pulled out from the concave portion 171, the hinge pin 16 is caught by the stopper 68. It cannot get out of the recess 171. To remove the lid 13, the stopper 68 is moved downward against the spring 69 by the operating portion 68 a so that the concave portion 171 is removed.
It is necessary to open the opening portion 171a of the camera. This prevents the lid 13 from being accidentally detached.

The lid 13 has an entrance 13a into the mouth 3a of the vacuum double container 3 as described above and shown in FIG. 2, and the entrance 3a is an entrance when the lid 13 is opened and closed. 13a is located at a position closest to the envelope 78 drawn.
In this way, by trying to enter the inside of the mouth 3a of the vacuum double container 3 by using a part of the lid 13 as the entry portion 13a, it is possible to prevent heat from escaping from the mouth 3a and to increase the heat retaining power. At the same time, swelling to the outside of the vessel 1 can be suppressed while sufficiently securing a large capacity required for the lid 13 by accommodating the steam passage 17 and the bellows pump 50 as a manual pump. In addition, the opening 3a of the vacuum double container 3 having the reduced opening diameter D as described above allows the entrance portion 1 to be opened and closed when the lid 13 is opened and closed.
Since the outline of 3a is immediately adjacent to the envelope 78 to be drawn, the lid 13
The opening diameter D can be made as small as possible without interfering with the opening and closing of the opening, thereby making it more difficult for heat to escape.

Further, a seal member 122 sandwiched between the lid 13 and a metal inner lid 121 applied to the entrance 13a is provided around the base of the entrance 13a of the lid 13, and a mouth 3a is provided. And the mouth portion 3a is closed by pressing against the innermost diameter portion. Thereby, the air located in the safety space for preventing the content liquid from closing the inner opening 17a of the steam passage 17 between the full water level and the entrance 13a is greatly spread to the outside more than the mouth 3a, and the heat is easily released. As a result, the heat retention is improved.

Further, if at least one of the electric pump 26 and the manual pump such as the bellows pump 50 is provided, it is possible to discharge and use the liquid content while keeping the electric hot water storage container stationary, and in recent years, it has been increased in size and lifted. It is suitable for large types that are difficult. In particular, when a manual pump is provided, the content liquid can be discharged without being energized during use in a thermos-insulated state in which the heater 11 does not heat the heater, which is suitable for energy saving and use where there is no power supply.

More specifically, as shown in FIG. 2, the inner cylinder 4 is connected to the small-diameter mouth 3a by a diaphragm-shaped surface 4b rising slightly above the water level line 67 in the body 4m and diagonally inward. From here, the straight inner surface 4c of the mouth 3a is formed, and then the opening end face 3a1 of the mouth 3a, which is slightly obliquely upward, is formed to form a welded joint 6 with the outer cylinder 5.
4 has been reached. The outer cylinder 5 is the inner cylinder 4 at the body 5m.
Of the diaphragm-shaped surface 4b, the diaphragm-shaped surface 5b rising gradually inward from the position substantially corresponding to the rising start point of the diaphragm-shaped surface 4b, and then at the horizontal position substantially corresponding to the rising end point of the diaphragm-shaped surface 4b. Connected to the shoulder 3d,
From this, it rises straight and reaches the welded joint 64 with the inner cylinder 4.

The inner cylinder 4 is, as shown in FIG.
A small inward flange 4e is formed at the lower end of the m, and is formed into a container shape by integration with a welded joint 80 with a circular bottom plate 81. A horizontal portion 4 is formed on the bottom of the container-shaped inner cylinder 4 formed in this manner from the outer peripheral side toward the center.
f, a gentle downward slope 4g, a horizontal part 4h, a steep downward slope 4i, and a central horizontal part 4j. On the other hand, the outer cylinder 5 has an inward flange 5c formed at the lower end of the body 5m as shown in FIG. 11, and a horizontal bottom ring 5d extending from the flange 5c to the outer periphery of the central horizontal portion 4j of the inner cylinder 4. Are integrated with a welded joint 90, and the inner periphery of the bottom ring 5 d is integrated with a welded joint 80 with the central horizontal portion 4 j of the inner cylinder 4. The bottom ring 5d is formed by bending two annular reinforcing beads 5g.
As shown in FIG. 4, the inner reinforcing bead 5g engages with the steeply inclined portion 4i of the inner cylinder 4 to form the bottom ring 5d.
The bottom of the inner and outer cylinders 4 and 5 can be positioned at the time of welding and joining with the central horizontal portion 4j.

As a result, a space around the body from the bottom ring 5d of the outer cylinder 5 and the bottom of the inner cylinder 4 is formed. That is, when the vacuum space 63 is formed, it becomes the wraparound portion 63a of the vacuum space 63. The central horizontal portion 4j of the inner cylinder 4 has a single bottom 3c on the inner side from the welded joint 80 with the bottom ring 5d of the outer cylinder 5, and the heater 11 is applied to the inner bottom 4c so that the liquid contained in the inner cylinder 4 can be efficiently used. Although the heating can be performed well, in this embodiment, a portion of the central horizontal portion 4j to which the heater 11 is applied is formed as a downward concave portion 3e which is depressed upward, and the position of the heater 11 is reduced by the depth of the concave portion 3e. It protrudes to the content liquid side, and the contact area with the content liquid in the installation area of the heater 11 increases, thereby improving the heating efficiency.

An upward concave portion 84 is formed annularly between the projecting portion of the concave portion 3e into the inner cylinder 4 and the wraparound portion 63a, and the content liquid discharged through the discharge passage 25 is filled in the concave portion 84. The inflow end 25e of the discharge passage 25 is appropriately protruded so as to be left somewhat. As a result, the content liquid remains without being discharged by an amount corresponding to the inflow end 25e protruding into the inner cylinder 4, thereby preventing the empty firing. In the embodiment shown in FIGS. 1 to 16, the inflow end 25 e of the discharge passage 25 is connected to the widened extension 84 a of the concave portion 84. As shown in FIG. 6, when the circular recess 3e is formed eccentrically as shown in FIG. 6, the area of the heater 11 does not decrease, so that the heating efficiency does not decrease. The extended portion 84a may be formed by cutting out a part of the circular concave portion 3e as shown by a solid line or a virtual line in FIG. 7, and in this case, the area of the heater 11 is reduced by the cutout. However, the proportion is small.

A metal heat shield plate 87 is provided on the back of the heater 11 abutting on the single bottom 3c, and is welded to the outer surface of the recessed portion 3e and the space around the vacuum space of the vacuum double container 3. 1, 9, and 14 attached to several places in the circumferential direction with screws 89, and a metal backup plate 92 and a spring are provided between the heat shield plate 87 and the heater 11. The member 91 is sandwiched and the spring member 9
The heater 11 presses the heater 11 against the single bottom 3c to make the heater 11 adhere closely. Further, a double structure portion in which the inner and outer cylinders 4 and 5 serving as the welded joints are in contact with each other is located at the fitting portion of the heater 11 and the bottom of the concave portion 84. The bottom mounting bracket 88 and the shoulder mounting bracket 71 shown in FIGS. 3 and 4 are the same.

The outer cylinder 5 has an opening 5 which extends from the drawn surface 5b to the joint 64 with the inner cylinder 4 via the shoulder 3d.
The area a is a separate member 83 independent of the body side, and a welded joint 85 is provided between the body side and the outward flanges 5e, 5f. By performing the welding and joining of the separate member 83 last, the container-shaped inner cylinder 4 and the outer cylinder 5 having no separate member 83 are fitted to each other to perform the welding of the bottom portion.
, A double container structure in which the inner and outer cylinders 4 and 5 having the drawn surfaces 4b and 5b are combined with both the inner and outer cylinders 4 and 5 is realized.

[0067]

According to the present invention, since the shoulder member is attached via the attachment metal provided around the outside of the opening of the heat insulating container, the opening of the mouth of the heat insulating container and the container opening formed by the shoulder member communicate with each other. Can be easily and securely mounted without any other restrictions, and the inconvenience of disassembling other parts due to repair or the like is eliminated.
In addition, since the mounting portion of the shoulder member is covered by the cover member, the mounting portion is not externally viewed, so that the mounting portion can be designed without any problem in external appearance, which is convenient. Furthermore, since the space between the cover member, the heat insulating container and the shoulder member is sealed by the seal member, even in the above-described mounting structure, the water leaking portion is formed between the opening of the heat insulating container and the body opening of the shoulder member. There is no problem in use because there is no.

The shoulder member and the cover member can be attached to the mounting bracket together with the cover member. For this purpose, the shoulder member and the cover member may be screwed to the mounting bracket using a common screw. The number of operations is halved compared to the case of stopping.

Alternatively, the shoulder member may be screwed to the mounting bracket from above, and the cover member may be elastically engaged or forcibly fitted to the shoulder member side by the covering. It can be attached by a simple operation of adding a cover in one behavior involving elastic engagement or forced fitting, and the screwed part does not have an appearance, so the appearance is good, and the screwed part does not need to be sealed There are advantages.

In a configuration in which at least one of the heat insulating container and the cover member, the cover member and the shoulder member, and the shoulder member and the heat insulating container is provided with a heat insulating gap, heat is transferred from the heat insulating container to the external member. It is possible to prevent transmission and escape in proportion to the number of insulation gaps.If the insulation gap is not visible, it may be a gap. What is necessary is just to make it the heat insulation gap which inserted the member.

In the configuration in which the heat insulating material is provided between the shoulder member and the heat insulating container, the heat insulating property around the upper portion of the heat insulating container where heat can easily escape can be enhanced, and the heat retaining power can be improved.

In the configuration in which the outer diameter of the cover member is smaller than the outer diameter of the body of the heat insulating container, the amount of bite into the region of the shoulder member is reduced so that the space between the shoulder member and the heat insulating container can be increased. Therefore, the heat insulating power can be further increased by increasing the thickness of the heat insulating material provided there.

When the cover member is a heat insulating member, the heat retaining power can also be increased.

In the configuration in which the upper surface of the cover member has a downward slope toward the inner peripheral side, even if water falls or flows on the cover member, the water is allowed to flow toward the mouth opening side of the heat insulating container by the gradient. Since the guide is provided, it is possible to prevent water from accumulating on the cover member.

In the structure in which the body opening of the shoulder member is continuous from the inner periphery to the center side and is continuous with the upper surface of the cover member, all of the water that is put into or that enters the body opening formed by the shoulder member is removed. It can be guided so as to flow to the cover member by the descending, and thereafter can reach the mouth opening of the heat insulating container by the guide of the cover member, such that water accumulates in the body opening including the cover member. Can be avoided.

In the configuration in which the direction indication for instructing the direction of drainage is given on the upper surface of the cover member, the upper surface of the cover member can be displayed on the upper surface which is different from both the heat insulating container and the shoulder member so as to be conspicuous. It is easy to recognize, and the upper surface of the cover member is located annularly around the mouth opening of the heat insulating container, and a display is provided corresponding to the position and direction to be drained, so it is possible to give instructions accurately and dislike water Appropriate drainage can be ensured to be protected, avoiding the area around the electricity and the lid attachment that disturbs the water flow.

In the configuration of the electric hot water storage container having the shoulder member mounting structure of the heat insulating container according to each of the above-mentioned inventions and heating the content liquid by applying a heater to the non-heat insulating portion of the heat insulating container, The electric hot water storage container with the shoulder member attached alone by exhibiting the features of the above features, increases the heating efficiency by heating with the heater in the non-insulated part, and is high in various heat insulation structures including the heat insulation container Power saving can be achieved by heat retention.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of an electric pot having a vacuum double container according to the present invention.

2 (a) is a sectional view and FIG. 2 (b) is a front view of a full water level indicator showing the vicinity of the mouth of a vacuum double container of the electric pot of FIG.

FIG. 3 is a cross-sectional view showing a shoulder member attaching portion around a mouth of the vacuum double container of the electric pot of FIG. 1;

4 is a cross-sectional view of the electric pot of FIG. 1 at another position showing a shoulder member attaching portion around the mouth of the vacuum double container.

5 is a cross-sectional view at another position showing an example of another shoulder member attaching portion around the mouth of the vacuum double container of the electric pot of FIG. 1;

FIG. 6 is a view showing a state of a discharge path connection state in the electric pot of FIG.
It is a cross-sectional view which shows two examples.

FIG. 7 is a cross-sectional view showing another example of a discharge path connection state in the electric pot of FIG.

FIG. 8 is a plan view showing a half part of a vacuum double container in the electric pot of FIG. 1;

FIG. 9 is a bottom view showing a half part of the vacuum double container in the electric pot of FIG. 1;

10 is a partial cross-sectional view showing a bottom of an inner cylinder constituting a vacuum double container in the electric pot of FIG. 1;

11 is a partial cross-sectional view showing a bottom of an outer cylinder constituting a vacuum double container in the electric pot of FIG. 1;

FIG. 12 is a partial cross-sectional view showing a mouth of a vacuum double container in the electric pot of FIG. 1;

13 is a cross-sectional view of a part of the electric pot of FIG. 1 at another position showing a mouth portion of the vacuum double container.

FIG. 14 is a sectional view showing the entire bottom of the vacuum double container in the electric pot of FIG. 1;

15 is a cross-sectional view of a cover member that covers a screwing portion of a shoulder member in the electric pot of FIG.

FIG. 16 is an external perspective view of the electric pot shown in FIG. 1 with a lid removed.

FIG. 17 is a graph showing the relationship between the opening diameter of the mouth of the vacuum double container and the quality as viewed from various aspects.

FIG. 18 is a sectional view of a conventional electric pot having a vacuum double container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Exterior case 3 Vacuum double container 3a Mouth 3d Shoulder 3f Mouth opening 6 Shoulder member 6a Mounting flange 6d, 75a Mounting hole 11 Heater 12 Body opening 13 Lid 63 Vacuum space 66 Mounting part 65 Annular space 71 Mounting bracket 72 Screw 73 Cover member 73c Hook piece 74, 77 Seal member 75 Washer 202 Arrow 203 Character display 204 Direction indication display

Claims (13)

[Claims] 1. A shoulder member mounting structure for an insulated container having a shoulder member formed with a body opening communicating with the mouth opening of the heat insulating container, wherein the mounting member is mounted around an outer periphery of the mouth opening of the heat insulating container. A shoulder member is mounted on a heat insulating container, wherein a shoulder member is mounted, a cover member covering the mounting portion of the shoulder member is covered, and a seal member is provided between the cover member, the shoulder member, and the heat insulating container. Construction. 2. The shoulder member mounting structure for an insulated container according to claim 1, wherein the shoulder member is mounted on a mounting bracket together with the cover member. 3. The shoulder member mounting structure for an insulated container according to claim 2, wherein the shoulder member and the cover member share a screw and are screwed to the mounting bracket. 4. The shoulder member mounting structure for an insulated container according to claim 1, wherein the shoulder member is screwed to the mounting bracket from above, and the cover member is elastically engaged or forcibly fitted to the shoulder member side by the covering. 5. A heat insulating gap is provided in at least one of between the heat insulating container and the cover member, between the cover member and the shoulder member, and between the shoulder member and the heat insulating container. 1
Item 4. The shoulder member mounting structure for an insulated container according to item 4. 6. The shoulder member mounting structure for an insulated container according to claim 1, wherein a heat insulating material is provided between the shoulder member and the insulated container. 7. The shoulder member mounting structure for an insulated container according to claim 6, wherein the outer diameter of the cover member is equal to or less than the outer diameter of the trunk portion of the insulated container. 8. The cover member is a heat insulating member.
A shoulder member mounting structure for an insulated container according to any one of claims 7 to 13. 9. The shoulder member mounting structure for an insulated container according to claim 1, wherein an upper surface of the cover member has a downward slope toward an inner peripheral side. 10. The shoulder member mounting structure for an insulated container according to claim 9, wherein the body opening of the shoulder member extends from the inner periphery toward the center and continues to the upper surface of the cover member. 11. A display according to claim 1, wherein a direction indication indicating the direction of drainage is provided on an upper surface of the cover member.
Item 4. The shoulder member mounting structure for an insulated container according to item 4. 12. The shoulder member mounting structure for an insulated container according to claim 11, wherein the drainage direction indication display portion is provided at a position that is not directly above an AC power supply connection portion provided at a lower portion of a side surface around the outside of the body. 13. An electric appliance having the shoulder member mounting structure for an insulated container according to any one of claims 1 to 12, wherein a heater is applied to a non-insulated portion of the insulated container to heat the liquid content. Hot water storage container.