JP3468107B2 - Electric cooker - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an electric cooker such as a hot plate used in general households.

[0002]

2. Description of the Related Art Conventionally, in this type of electric cooker, a hot plate requires a relatively large plate for performing okonomiyaki and yakisoba as a general-purpose menu, and a main body for placing and heating the plate. Was also as large as the plate.

A pair of electric cookers connected by a hinge structure so as to be folded in two as shown in Japanese Patent Publication No. 63-36246 will be described with reference to FIGS. 18 to 20. 1a and 1b are vessels having the same shape, and these are formed by mounting an edge member 2. A handle portion 2a is integrally formed with a part of the edge member 2. The pair of vessels 1a and 1b are connected to each other by a hinge mechanism 3 so that they can be folded in two on the side opposite to the handle portion 2a. The hinge mechanism 3 connects the hinge members 4 and 5 with a hinge shaft 6. A heater 7 such as a sheathed heater and a temperature sensor 8 are attached inside the bodies 1a and 1b. Body 1a, 1b
A plate 9 is detachably attached to the inner opening of the.
The plate 9 is in direct contact with the heater 7, and a part of the back surface is in contact with the temperature sensor 8.
The plate 9 can be used even if a plurality of plates having different shapes are prepared according to the cooking purpose. Reference numeral 10 is a controller in which a power cord 11 is connected to one end and a cord 12 connected to the heater 7 and the temperature sensor 8 is connected to the other end, whereby heat generated by each heater 7 attached to each of the pair of bodies 1a and 1b is generated. Each can be controlled independently.

Reference numeral 10a denotes a heater control operator on the body 1a side, and 10b denotes a heater control operator on the body 1b side. Further, it is possible to control the pair of plates to the same temperature with one control unit.

With the above structure, the pair of bodies 1a, 1b
Since they are connected by the hinge mechanism 3, when they are not used, they can be stored compactly by folding them in two so that the pair of plates 9 face each other as shown in FIGS. 1 and 3. there were. In addition, when cooking a small amount of food, it is possible to heat only one heater 7 and control the controller 10 to use only one plate for cooking while saving power. Met. Further, the object to be cooked, which is folded between the plates by the hinge mechanism 3 and placed between the plates, can be cooked from both sides.

[0006]

However, a normal hot plate requires a space of the same size as when cooking when it is stored when not in use, and it is inconvenient to handle it when it is stored.

[0007] Further, by forming a pair of body parts and folding the body parts in two, the space of the body parts can be reduced to about half at the time of storage, which facilitates the handling at the time of storage.
Since the number of plates is two, it is necessary to adjust the temperature of each plate, which makes the operation complicated and difficult to use.

Further, there is a problem that the mechanism for operating the two temperature sensors with one controller becomes complicated when the folding mechanism is combined. Further, if the temperature of the two plates is sensed by the microcomputer or the like and the energization of the heaters is controlled respectively, there is a problem in that the member cost increases, the product becomes expensive, and it cannot be manufactured at low cost.

The present invention is intended to solve the problems of such a conventional structure, and provides an electric cooker which is easy to store, has easy operability during cooking, and is inexpensive. The purpose is to Further, since the electric cooker becomes hot, it is intended to prevent burns and the like and improve safety.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a structure in which a pair of bodies is provided with a hinge structure on both bodies, and the body is folded in two. A temperature sensor that detects the temperature of the instep side plate and a temperature control mechanism that controls the energization of the instep side heater by the temperature sensor to adjust the temperature of the instep side plate to a constant temperature are installed. Energize the B-side heater in conjunction with the control of the energization of the B-side heater to control the temperature of the B-side plate to the same temperature as the A-side plate and stop the energization when the B-side body temperature rises abnormally. However , the plate is a flat plate with a flat cooking surface.
And a grilled meat plate with a groove on the cooking surface.
Place the flat plate on the body and place the grilled meat
When the heater is placed, the energization of the second heater is cut off .

With this structure, it can be opened during cooking and folded in half during storage, and the storage space is halved. Moreover, the temperature adjustment operation can be performed in one place, which is easy. Moreover, since a thermostat is provided to perform the two plates with one temperature sensor, the safety of the upper side body and the second side body can be ensured in any cooking method.
Further, the thermostat is cheaper than the temperature sensor, and only one temperature sensor is used, and the material cost can be reduced. Therefore, it is possible to realize a safe and inexpensive electric cooker with the same operability as the conventional one, with only one temperature adjustment operation.

Further, the plane plate is composed of an instep device and an inward device.
Heaters that can be placed on either or both bodies
Can be heated by energizing, but the grilled meat plate is on the instep side body
Can be placed, but cannot be placed on the second party
By placing the flat plate on the instep side body,
If you try to place a grilled meat plate on the
The meat plate can be prevented from being heated.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is
An instep plate that can be detachably placed for cooking,
It has an instep side heater for heating the instep side plate, an instep side heat shield covering the lower side and the side of the instep side heater, and an instep side body covering the lower and side of the instep side heat shield. Instep side body, detachable second side plate for cooking, second side heater for heating the second side plate, second side heat shield for covering the lower side of the second side heater, The second side body having a second side body that covers the lower side of the second side heat shield plate, and the second side body and the second side body can be folded in two by providing a hinge structure on both the second side body and the second side body. In addition to being connected to, the instep side body has a temperature sensor for detecting the temperature of the instep side plate,
The temperature sensor controls the energization of the instep side heater to set the temperature of the instep side plate, and energizes the instep side heater in conjunction with the instep side heater energization control on the instep side body. together is provided a configuration in which Party B side plate stops energization of Party B side heater upon abnormal temperature rise, the flop
Rate cooking surface has a planar plates of the plane, the groove on the cooking surface
It has a roasted meat plate provided and a flat plate on the instep side body
When placing and then placing the grilled meat plate on the Otsu side body
For this, an electric cooker that shuts off the power supply to the B-side heater should be used.

As a result, the pair of vessels can be opened during cooking and folded in half during storage due to the hinge structure, and the storage space is halved. In addition, the instep side body detects the temperature of the instep side plate by the temperature sensor, controls the energization of the instep side heater to the temperature set by the temperature adjustment mechanism, and sets it. Rather than providing it, the energization of the B side heater is controlled in conjunction with the energization of the A side heater to set the same temperature as the A side plate. In addition to this, when the temperature of the B-side plate rises above the maximum set temperature, a configuration is provided to stop the energization of the B-side heater to prevent the B-side body from becoming abnormally hot.

Further, the flat plate is composed of an instep device and an inward device.
Heaters that can be placed on either or both bodies
Can be heated by energizing, but the grilled meat plate is on the instep side body
Can be placed, but cannot be placed on the second party
By placing the flat plate on the instep side body,
If you try to place a grilled meat plate on the
The meat plate can be prevented from being heated.

The invention according to claim 2 of the present invention is configured such that the power is cut off to both the instep side and the instep side unless the plate is placed on the instep side body. A switch is provided on the side body, and if the plate is not placed on the instep body, the entire circuit is opened to cut off the power supply to the instep side heater and the outside side heater.

[0017]

(Embodiment 1) A first embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, reference numeral 21 denotes an instep side heater composed of a sheathed heater, which is attached to an instep side heat shield plate A having a shape covering the lower side and the side of the instep side heater by a heater support metal fitting 23. The instep side heat shield plate B of 24 has a shape covering the lower side and the side of the instep side heat shield plate A23, and is attached to the instep side heat shield plate A23. 26 auxiliary legs are attached to the instep side body 25,
It is attached to the instep side heat shield plate B24 with the spacer 27 interposed therebetween. Reference numeral 28 denotes a second-side heater composed of a sheath heater, and is attached to the second-side heat shield plate A having a shape of covering the lower side and the side of the second-side heater 28 by a heater support metal fitting 23. The third heat shield plate B of 30 has a shape that covers the lower side and the side of the second heat shield plate A29, and is attached to the second heat shield plate A29. 26 auxiliary legs are attached to the B-side body 31 and are attached to the B-side heat shield B30 with the spacer 27 interposed therebetween. The hinges of 32 include the instep side hinges of 33 attached to the instep side body 25 and the inboard side hinges 34 attached to the inboard side body 31, a hinge shaft 35 and a hinge bearing 36.
It is configured to be rotatable by connecting with.

A temperature control holder 38 is attached to the temperature sensor 37, and is attached to the instep side heat shield plate A23 by a mounting bracket 39. 40 is a temperature control knob slidably mounted on the instep body 25, and 41 is a temperature control knob 40.
Is a temperature control shaft attached to the, and 42 is an instep side cover.
Then, the temperature control holder 38 and the temperature control knob 40
The temperature adjusting shaft 41 constitutes a temperature adjusting mechanism.

Reference numeral 43 denotes a thermostat which cuts off the electric current when the temperature exceeds the set temperature and turns on the electric current when the temperature is lower than the set temperature. The thermostat 43 is attached to the heat receiving plate 44 attached to the second heat shield A29. Reference numeral 45 is a second cover attached to the second body.

The instep side body 25 is formed with 46 instep side legs A, 47 instep side legs B, and 48 instep side legs, and in the other side body 31, 49 inward side legs A. And 50 B side legs B and 51 B side legs. A handle 52 is attached to the upper body 25 and the second body 31. 53 is a plate to be placed on the instep side body and the instep side body. In FIG. 1, the instep side plate is 53a and the second side plate is 53b. A lid 54 is placed on the plate, and a lid handle 55 is attached to the lid 54. Reference numeral 56 is an electrical conducting wire for passing electricity from the instep side body to the second side body, and 57 is a power cord attached to the instep side body, and a power plug 58 is provided at the tip.

In the foldable electric cooker having the above-described structure, when cooking, the upper side body and the second side body are hinged 3
While being supported by 2, the instep side body is supported by the instep side leg A46 and the instep side leg B47 of the instep side body 25, and the instep instrument body is in the other side leg A49 and the instep side body 31. Side leg 5
Supported by 0. When the power plug 58 is inserted into a household outlet, the power cord 57 supplies electricity to the instep side body. When the temperature adjusting knob 40 is set to a high temperature, the temperature adjusting holder 38 is rotated by the temperature adjusting shaft 41, the temperature sensor 37 energizes the instep side heater 21 until the plate 53 becomes hot, and the plate 53 becomes hot. The energization to the instep side heater 21 is cut off, and the temperature of the plate 53 is set to a high temperature.

Further, the plate 53a of the second body can be kept at the same temperature as the plate 53b of the second body. The heat receiving plate 44 receives the heat of the plate 53a of the second party body, and the thermostat 43 senses the temperature of the heat receiving plate 44. The circuit of the thermostat 43 opens when the temperature rises above a set temperature, and the circuit closes when the temperature falls below the set temperature. When the circuit of the thermostat 43 opens, the second heater 28 is de-energized. When folding, hold the handles 52 of both bodies,
The product size can be reduced by confining the plate 53 inside and folding it as shown in FIG. 3, and can be stood upright with the instep side stand leg 48 and the second side stand leg 51 for storage.

Thus, when cooking, the
It is possible to control the temperature of two plates, the instep side plate and the instep side plate, by operating the temperature control only at one place.

Here, when the user cooks, the lid is usually preheated, but the upper plate is not covered by mistake and the second plate is closed by mistake. The temperature rises quickly, and by the time the temperature sensor detects that the instep side plate has become hot, the outside side plate rises to an abnormal temperature above the set temperature, and a temperature fuse is used as a safety mechanism. If it is provided, it will melt and cannot be reused. If the thermal fuse is not provided, the temperature of the second body will become high, and there is a risk of melting damage or burns.

In order to prevent this, a temperature sensor is also required on the B-side body, but according to the present invention, the B-side plate is set earlier than the A-side plate by providing a thermostat for the B-side body. Even if the temperature is reached, the temperature can be adjusted with a thermostat so that it will not rise further.

Therefore, the safety can be secured without attaching the temperature sensor to the second side body, and the operation can be performed only at one place on the upper side body, and the member of the temperature adjusting mechanism of the second side body can be omitted. Since the thermostat is cheaper than the temperature sensor, the product member can be constructed cheaply.

(Embodiment 2) In FIGS. 4 to 6, a controller 61 is one in which a temperature adjusting knob 63 is directly attached to a temperature sensor 62, a power cord 64 is connected, and the controller 61 is incorporated in a case 65.
66 is an instep side body, 67 is a second side body, and a corner 68 is attached to a square pottery 69 with a conductive plate 70 with a screw 71.

With this configuration, the controller 61 can integrate the temperature sensor 62 and the temperature adjusting structure in a compact manner, omitting a mounting bracket for mounting the temperature sensor and a member for interlocking the temperature sensor and the temperature adjusting knob. The instep body can also be reduced by eliminating the temperature control structure.

(Embodiment 3) In FIGS. 7 and 8, reference numeral 71 is an instep plate detection switch, in which a micro switch 73 to which a switch lever 72 is attached is attached to a switch mounting metal fitting 74, and the switch mounting metal fitting 74 is mounted on the instep side body. It is attached to 25. Further, in FIG. 9, reference numeral 75 denotes a convex portion provided on the back surface of the plate 53, which penetrates the hole 76 provided in the instep side heat shield plate A22 when the plate 53 is placed on the instep side heater 21.
As a result, when the plate 53 is placed, the second heat shield plate A
The switch lever 73 provided directly below the hole 76 of 22 is pushed to energize as shown in FIG. Similarly, a plate detection switch structure is also provided on the second side body.

With this structure, it is possible to prevent the heater of the body from generating heat without placing the plate on the user body and injuring the user such as burns.

(Embodiment 4) In the circuit diagram of FIG. 11, when the plate detection switch 71 of the instep side body is opened, the instep side heater 21 and the outside side heater 28 are electrically disconnected from each other. .

As a result, since the temperature sensor does not function unless the plate is placed on the instep side plate, the second side plate is controlled only by the thermostat and can be set only at the maximum temperature, and cooking fails depending on the menu. Therefore, this circuit can solve the problem caused by this misuse.

(Embodiment 5) In FIG. 12 and FIG.
No. 81 is provided in the second heat shield A29. Further, a convex portion 83 is provided on the back surface of the flat plate 82, and the flat plate 8 is provided on the back surface of the grill plate 84.
A convex portion 85 thinner than the second convex portion 83 is provided. Here, the opening hole 80 of the instep side heat shield plate A22 has a size through which the convex portion 85 of the grill plate 84 penetrates, and the opening hole 8 of the other side heat shield plate A29.
The size of 1 passes through the convex portion 83 of the flat plate 82, but does not penetrate the convex portion 85 of the grilled meat plate 84. The flat plate is a plate having a normal surface with no irregularities, and the roasted meat plate is a plate having an irregular surface, as shown in FIG. 13 (b).

With this configuration, the switch lever of the plate-side plate detection switch is pushed and the heater on the side-side can be energized regardless of whether a flat plate or a grill plate is placed on the side-side device. When placed on a flat plate in the body, the switch lever of the Otsu side plate detection switch is pressed, and the Otsu side heater can be energized, but when attempting to place the Yakiniku plate, the Yakiniku plate is placed in the opening hole of the Otsu side heat shield plate. Since the protrusion cannot penetrate, the switch lever of the second side plate detection switch is not pressed and the second side heater does not turn on. Also, since the convex portion of the grilled meat plate does not penetrate into the opening hole of the heat shield plate on the other side, it cannot be placed on the heater on the other side and is in a floating configuration, so that the switch for detecting the other side plate cannot be closed. ing. Moreover, since the roasted meat plate is not set on the second side device, it can be recognized by the user, and misuse can be easily understood.

With the above-mentioned configuration, the grilled meat plate is provided with a simple structure that cannot be cooked by the second party body. This is because when the plate on the temperature sensing side is a flat plate, the grilled meat is controlled. Since the plate has a large heat capacity, the plate is not sufficiently heated, and the problem that the plate cannot be cooked properly due to an insufficient amount of heat for grilled meat cooking can be solved.

(Embodiment 6) In FIG. 14, a heating changeover switch 90 is provided on the instep side body 25 of the instep side body. Then, as shown in the circuit of FIG. 15, the energization of the second heater 28 is switched to switch between energization of both the instep side heater 21 and the instep side heater 28 and the instep side heater 2.
This is a structure in which only 1 is switched on.

Thus, the user can arbitrarily switch the plate to be heated when a small amount of food is to be cooked or when the amount of food to be cooked is small. The heating changeover switch 81 may be provided on the second side body.

(Embodiment 7) In FIG. 16, a folding detection switch consisting of a micro switch 101 provided with a switch lever 100 is attached to the instep side body 25, and both bodies are opened in the second side body 31. Push the switch lever 100 to
Forming 2.

When the two bodies are opened, the second body 31
When the convex portion 102 pushes the switch lever 100 of the micro switch 101 and the two bodies are folded, the convex portion 22 separates from the switch lever 100 and the micro switch 101
Opens. Here, the circuit of the main body has the configuration shown in FIG. 17, and when the micro switch 101 is opened, the energization of the upper side heater and the second side heater is cut off.

As a result, a structure that cannot be heated in the folded state is obtained, and there is a risk of ignition because the user cannot see it when cooking in the folded state. However, this structure can eliminate the danger. it can.

[0041]

According to the first aspect of the present invention, when cooking, by opening both vessels and cooking with the instep side plate and the instep side plate, it is possible to perform the same cooking as the conventional hot plate and not use it. When the case is folded in two, the storage space is halved, making it easier to store.

Further, in the instep side body, the temperature sensor detects the temperature of the instep side plate and sets the plate temperature by controlling the energization of the instep side heater, but the instep side body does not have a temperature sensor. The temperature of the second side plate is set to the same temperature as that of the upper side plate by controlling the energization of the upper side heater. Moreover, since a thermostat is provided to perform the two plates with one temperature sensor, the safety of the upper side body and the second side body can be ensured in any cooking method. Further, the thermostat is cheaper than the temperature sensor, and only one temperature sensor is used, and the material cost can be reduced.

Therefore, the temperature adjustment operation can be performed in one place, and a safe and inexpensive electric cooker can be realized with the same operability as the conventional one.

Also, the grilled meat plate is better than the flat plate
Because of its large heat capacity,
When heating different plates at the same time, use a flat plate
When the heater heating is controlled, the heat of the meat plate is supplied.
Because the amount is insufficient and the meat cannot be cooked well,
In case of misuse such as heating control of the heater with meat plate
Can not be set, cooking failure and user set
You can make it easier to recognize mistakes.

According to the second aspect of the present invention, when the second side plate is heated without placing the second side plate, the second side heater is continuously energized. Therefore, since the temperature is controlled only by the thermostat, the second side plate is Since the temperature can only be adjusted to a high temperature and low-temperature cooking cannot be performed, cooking failure can be prevented by not heating the B-side plate when the A-side plate is not placed.

[Brief description of drawings]

FIG. 1 is a sectional view showing the overall configuration of an electric cooker according to a first embodiment of the present invention.

FIG. 2 is a plan view of the electric cooker with a plate and a cover removed.

FIG. 3 is a perspective view of the electric cooker when folded.

FIG. 4 is a sectional view showing the overall configuration of an electric cooker according to a second embodiment of the present invention.

FIG. 5 is a plan view of the electric cooker with a plate and a cover removed.

FIG. 6 is a partial sectional view of an electric cooker according to a second embodiment of the present invention.

FIG. 7 is a partially cutaway plan view of the electric cooker according to the third embodiment of the present invention when a plate and a cover are removed.

8 is a cross-sectional view taken along the line A-A 'in FIG.

FIG. 9 is a partial sectional view of an electric cooker according to a third embodiment of the present invention.

FIG. 10 is a circuit diagram of the electric cooker.

FIG. 11 is a circuit diagram of an electric cooker according to a fourth embodiment of the present invention.

FIG. 12 is a plan view of the electric cooker according to the fifth embodiment of the present invention when a plate is removed.

FIG. 13 (a) is a partial sectional view of the electric cooker according to the fifth embodiment of the present invention when a flat plate is used. FIG. 13 (b) is a partial sectional view of the electric cooker when a roasted meat plate is used.

FIG. 14 is a side view of the electric cooker according to the sixth embodiment of the present invention.

FIG. 15 is a circuit diagram of the electric cooker.

FIG. 16 is a partial cutaway plan view of an electric cooker according to a seventh embodiment of the present invention.

FIG. 17 is a circuit diagram of the electric cooker.

FIG. 18 is a perspective view of an electric cooker having a conventional configuration.

FIG. 19 is a vertical sectional view of the electric cooker when opened.

FIG. 20 is a vertical sectional view of the electric cooker when folded.

[Explanation of symbols]

21 Instep heater 22 Insulation plate A 23 Heater support bracket 24 Insulation plate B 25 Instep side body 28 Otsu side heater 29 B heat shield A 30 B heat shield plate B 31 Oto side body 32 hinges 33 Instep hinge 34 Otsu side hinge 35 hinge shaft 36 Hinge bearing 37 Temperature sensor 38 Temperature control holder 39 Mounting bracket 40 Temperature control knob 41 Temperature control axis 51 Otsu side stand leg 52 handle 53a Upper side plate 53b Otsu side plate 54 Lid

Front Page Continuation (72) Inventor Kenji Kimoto 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP 56-80222 (JP, A) JP 8-191763 ( JP, A) JP-A-10-155663 (JP, A) SAIKAI Sho 57-143034 (JP, U) JPB 63-36246 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) A47J 37/06

Claims (2)

(57) [Claims] 1. An instep-side plate that is detachably mountable for cooking, an instep-side heater that heats the instep-side plate, and an instep-side heat shield plate that covers a lower side and a side of the instep-side heater. , An instep side body having an instep side body covering the lower side and the side of the instep side heat shield plate, a detachably mountable other party side plate for cooking, and heating the other party side plate A second-side body having a second-side heater, a second-side heat shield that covers a lower side of the second-side heater, and a second-side body that covers a lower side of the second-side heat shield, and the second-side body The second side body and the second side body are hingedly connected to each other so as to be foldable in two, and the upper side body has a temperature sensor for detecting the temperature of the upper side plate and the temperature sensor. Incorporating a temperature adjustment mechanism that controls the energization of the instep heater to set the temperature of the instep plate Is designed to energize the B-side heater in conjunction with controlling the energization of the A-side heater and to stop energizing the B-side heater when the temperature of the B-side plate rises abnormally. The plate has a flat cooking surface. Plane play
And a grilled meat plate with a groove on the cooking surface.
Place the flat plate on the body and place the grilled meat
Power is shut off when the heater is placed.
Electric cooker. 2. When the plate is not placed on the instep side body, the power supply to both the instep side and the other side body is cut off.
The electric cooker described.