JP2024004998A - Cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To downsize a cooker.

SOLUTION: A cooker comprises: a pot comprising a cooking space; a heating part for heating the pot; a lid comprising an inner lid for sealing the cooking space; a pressure reduction valve provided in the inner lid, and capable of moving between a sealing position at which the cooking space is sealed, and an opening position at which it is opened to atmospheric pressure; and a valve driving part provided in the lid, and for variably operating the position of the pressure reduction valve. The valve driving part comprises a driving source, and a rotation operation part to be rotationally operated by driving force of the driving source.

SELECTED DRAWING: Figure 16

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present disclosure relates to a heating cooker.

2. Description of the Related Art Conventionally, there has been known a heating cooker that heats and cooks foods such as foods stored in a pot (for example, see Patent Document 1).

The cooking device of Patent Document 1 has a mechanism that automatically operates a pressure reducing valve (pressure release valve) for controlling the pressure inside the pot, and when a predetermined condition such as during cooking or at the end of cooking is met, , operate the pressure reducing valve to release the pressure inside the pot to atmospheric pressure.

Japanese Patent Application Publication No. 2016-174703

However, in the heating cooker of Patent Document 1, by providing the drive mechanism of the pressure reducing valve inside the lid, the size of the lid tends to increase, and there is room for improvement in reducing the size of the heating cooker.

Therefore, an object of the present disclosure is to reduce the size of a heating cooker in order to solve the above problems.

In order to achieve the above object, the heating cooker of the present disclosure includes a pot having a cooking space, a heating section for heating the pot, a lid having an inner cover for sealing the cooking space, and the inner cover. a pressure reducing valve provided on the lid and movable between a sealing position for sealing the cooking space and an open position for releasing the cooking space to atmospheric pressure; and a valve provided on the lid for variably operating the position of the pressure reducing valve. A drive unit, the valve drive unit includes a drive source, and a rotational operation unit that rotates by the driving force of the drive source.

According to the present disclosure, the heating cooker can be downsized.

A perspective view of the heating cooker of the embodiment (with the lid closed) A perspective view of the heating cooker of the embodiment (with the lid closed) A perspective view of the heating cooker of the embodiment (with the lid open) Front view showing the inside of the lid of the embodiment Front view showing the inside of the main body of the embodiment Vertical cross-sectional view of the heating cooker of the embodiment (A-A arrow view in FIG. 1) A vertical cross-sectional view schematically showing the peripheral configuration of the pressure reducing valve of the embodiment (the pressure reducing valve is in a sealed state) A vertical cross-sectional view schematically showing the peripheral configuration of the pressure reducing valve of the embodiment (the pressure reducing valve is in an open state) An enlarged perspective view showing a state in which a part of the outer lid of the lid of the embodiment is omitted. An enlarged perspective view showing a state in which a part of the outer lid of the lid of the embodiment is omitted. An exploded perspective view of the lock ring and pot of the embodiment A diagram showing the overlapping state of the flanges of the pot and lock ring of the embodiment (unlocked state where the flanges do not overlap) Diagram showing the overlapping state of the flanges of the pot and lock ring of the embodiment (locked state where the flanges overlap to the maximum) A diagram showing the overlapping state of the flanges of the pot and lock ring of the embodiment (half-locked state where the flanges partially overlap) A perspective view of the peripheral configuration of the lock ring regulation valve of the embodiment viewed from above. A perspective view of the peripheral configuration of the lock ring regulation valve of the embodiment viewed from above. A perspective view of the peripheral configuration of the lock ring regulation valve of the embodiment viewed from above. A perspective view of a heating cooker showing a state in which the handle of the embodiment is omitted. A perspective view showing an enlarged view of part A in FIG. 12 A perspective view showing a state in which a part of the outer lid of the lid of the embodiment is omitted. A perspective view showing a state in which a part of the outer lid and a cover member of the lid of the embodiment are omitted. A plan view showing a state in which a part of the outer lid and a cover member of the lid of the embodiment are omitted. An enlarged plan view of the valve drive unit of the embodiment An exploded perspective view showing the main configuration of the valve drive unit of the embodiment An exploded perspective view showing the main configuration of the valve drive unit of the embodiment Top view of the valve drive lever of the embodiment Bottom view of the valve drive lever of the embodiment Top view of the support plate of the embodiment Bottom view of the support plate of the embodiment A plan view for explaining the schematic operation of the valve drive unit of the embodiment (the pressure reducing valve is in the sealed position) A plan view for explaining the schematic operation of the valve drive unit of the embodiment (the pressure reducing valve is in the open position) An enlarged plan view of the first connecting pin and elongated hole of the embodiment (corresponding to FIG. 24A) An enlarged plan view of the first connecting pin and elongated hole of the embodiment (corresponding to FIG. 24B) A perspective view showing the peripheral configuration of the lid lock drive unit of the embodiment A perspective view showing the main parts of the lid lock drive unit of the embodiment A perspective view showing a base member of an embodiment A perspective view showing an enlarged view of the periphery of the lid lock detection means in FIG. 28 A perspective view showing the main parts of the lid lock drive unit excluding the lock ring of the embodiment A perspective view showing the main parts of the lid lock drive unit excluding the lock ring of the embodiment A plan view for explaining the operation of the lid lock drive unit of the embodiment A plan view for explaining the operation of the lid lock drive unit of the embodiment A plan view for explaining the operation of the lid lock drive unit of the embodiment An enlarged plan view of the second connection pin and elongated hole of the embodiment (corresponding to FIG. 32A) An enlarged plan view of the second connection pin and elongated hole of the embodiment (corresponding to FIG. 32B) Flowchart regarding processing when executing the pressure cooking menu of the embodiment A plan view showing the relationship between the operation of the lid lock drive unit and the operation of the valve drive unit of the embodiment. A plan view showing the relationship between the operation of the lid lock drive unit and the operation of the valve drive unit of the embodiment. A plan view showing the relationship between the operation of the lid lock drive unit and the operation of the valve drive unit of the embodiment. A plan view showing a relationship in which the operation of the lid lock drive unit is not linked to the operation of the valve drive unit in the embodiment. A plan view showing a relationship in which the operation of the lid lock drive unit is not linked to the operation of the valve drive unit in the embodiment. A plan view showing the relationship between the operation of the valve drive unit and the operation of the lid lock drive unit of the embodiment. A plan view showing the relationship between the operation of the valve drive unit and the operation of the lid lock drive unit of the embodiment. A plan view showing the relationship between the operation of the valve drive unit and the operation of the lid lock drive unit of the embodiment. A plan view showing a relationship in which the operation of the valve drive unit is not linked to the operation of the lid lock drive unit of the embodiment. A plan view showing a relationship in which the operation of the valve drive unit is not linked to the operation of the lid lock drive unit of the embodiment. A plan view showing a relationship in which the operation of the valve drive unit is not linked to the operation of the lid lock drive unit of the embodiment. A table showing the operation of each member when the handle of the embodiment shifts from the open state (unlocked state) to the closed state (locked state) by manual operation of the handle. A table showing the operation of each member when the pressure reducing valve shifts from the open state to the closed state during automatic operation of the motor of the embodiment A table showing the operation of each member when the handle of the embodiment is manually operated to shift the handle from a closed state (locked state) to an open state (unlocked state). Table showing the operation of each member when the pressure reducing valve shifts from the closed state to the open state during automatic operation of the motor of the embodiment Flowchart regarding processing when executing a pressure cooking menu according to a modified example

According to a first aspect of the present invention, a pot having a cooking space, a heating section for heating the pot, and a lid having an inner cover for sealing the cooking space;
a pressure reducing valve provided on the inner lid and movable between a sealing position for sealing the cooking space and an open position for releasing the cooking space to atmospheric pressure;
a valve drive unit provided on the lid and variably operating the position of the pressure reducing valve;
The valve driving section provides a heating cooker including a driving source and a rotating operation section that rotates by the driving force of the driving source.

According to a second aspect of the present invention, there is provided the heating cooker according to the first aspect, wherein the rotating shaft of the rotary operation section extends along the thickness direction of the lid.

According to a third aspect of the present invention, the rotary operation section has a push-down section for pushing down the pressure reducing valve from the sealing position toward the open position,
The heating cooking according to the first aspect or the second aspect, wherein the pressing part moves in an arc between a first position pressing down the pressure reducing valve and a second position different from the first position. Provide utensils.

According to a fourth aspect of the present invention, there is provided the heating cooker according to the third aspect, wherein the push-down portion has an inclined surface whose height changes along an arcuate moving direction.

According to a fifth aspect of the present invention, the rotational operation section includes a first arm section extending in an arc shape, and a second arm section connecting the first arm section and the rotating shaft. The heating cooker according to any one of the fourth aspects is provided.

According to a sixth aspect of the present invention, there is provided the heating cooker according to the fifth aspect, wherein the rotation operation section has a cavity in a region surrounded by the first arm section and the second arm section.

According to a seventh aspect of the present invention, the cavity is provided with a first gear for transmitting the driving force of the drive source to the rotational operation part,
The cooking device according to the sixth aspect is provided, wherein a second gear that meshes with the first gear is formed on the inner circumferential surface of the first arm part.

According to an eighth aspect of the present invention, the first gear and the second gear are each formed of a spur gear,
The heating cooker according to the seventh aspect is provided, wherein the pressure reducing valve moves up and down along the axial direction of the spur gear.

According to a ninth aspect of the present invention, there is provided the cooking device according to any one of the first to eighth aspects, further comprising a support plate that rotatably supports the rotary operation section.

According to a tenth aspect of the present invention, the rotational operation section has a first arm section extending in an arc shape,
The heating cooker according to the ninth aspect is provided, wherein the support plate has an arcuate groove portion that guides the arcuate movement of the first arm portion.

According to the eleventh aspect of the present invention, the support plate includes a first restriction wall that blocks movement of the rotational movement section in the first direction, and a second restriction wall that blocks movement of the rotational movement section in the second direction. comprising a wall and
The heating cooking device according to the ninth aspect or the tenth aspect is provided, wherein the rotation operation section is rotatably provided in a region between the first restriction wall and the second restriction wall.

According to the twelfth aspect of the present invention, the rotary operation section has a member arrangement space in which other members can be arranged in a region surrounded by the first arm and the second arm,
The support plate has a fixing part for fixing the support plate to the lid, and the fixing part is arranged in the member arrangement space, according to any one of the ninth to eleventh aspects. We provide heating cookers.

According to a thirteenth aspect of the present invention, it further includes a cover member that covers the rotational movement part, and the rotational movement part has a rib at a location where it contacts the cover member, any one of the first to twelfth aspects. The heating cooker according to one of the above is provided.

Hereinafter, exemplary embodiments of a heating cooker according to the present disclosure will be described with reference to the accompanying drawings. The present disclosure is not limited to the specific configurations of the embodiments below, and includes configurations based on similar technical ideas.

(Embodiment)
First, a heating cooker according to an embodiment of the present disclosure will be described with reference to FIGS. 1 to 5.

1 to 3 are perspective views of the cooking device 2 according to the embodiment, FIG. 4A is a plan view showing the inside of the lid 10, and FIG. 4B is a plan view showing the inside of the main body 8. 5 is a view taken along the line AA in FIG. 1. 1 and 2 show a state in which the lid 10 is closed, and FIG. 3 shows a state in which the lid 10 is opened.

The heating cooker 2 shown in FIGS. 1 to 5 is a cooking utensil for cooking food (not shown) such as food. The heating cooker 2 of this embodiment can be used as an automatic cooker in which an operation sequence is preprogrammed for each cooking menu, and such a cooker can be called an "auto cooker," "multi-cooker," or "slow cooker." Also called. It should be noted that, of course, the cooking device 2 of this embodiment can also perform manual cooking without using a pre-programmed operation sequence.

When the user uses the heating cooker 2 as an automatic cooker, he/she places the food to be cooked (not shown) in the cooking space S1 of the pot 4 shown in FIG. Operate to select the cooking menu and decide to perform heating cooking. The heating cooker 2 operates to heat-cook the food according to a predetermined program according to the selected cooking menu dish (boiled food, curry, etc.).

Hereinafter, in this embodiment, a case where the cooking device 2 is used as an automatic cooking device will be described.

The heating cooker 2 of this embodiment has a "pressure cooking function" that cooks food in a state where the cooking space S1 is pressurized to a pressure higher than atmospheric pressure. In order to execute the pressure cooking function, a pressure cooking menu for performing pressure cooking can be selected on the operation display section 6 shown in FIG. The operation display section 6 functions as a cooking menu selection section for selecting a cooking menu. In addition to the pressure cooking function, it may be possible to select a "reduced pressure cooking function" in which cooking is performed while the cooking space S1 is depressurized to a pressure lower than atmospheric pressure.

The heating cooker 2 shown in FIGS. 1 to 5 includes a pot 4 (FIGS. 3 and 5), a main body portion 8 that accommodates the pot 4, and a lid 10.

The pot 4 is a cylindrical container having an open bottom and an open top. The pot 4 forms a cooking space S1, and a stirring blade 5 is provided in the cooking space S1.

The main body portion 8 is a cylindrical member having a bottom portion with an open top surface. The main body part 8 includes various parts for operating the cooking device 2. As shown in FIG. 4B, a magnet 152 as a lid opening/closing detection means 150 for detecting opening/closing of the lid 10 is built into the upper end of the main body 8. As shown in FIG. 5, a heater 9 serving as a heating section for heating the pot 4 is built into the bottom side of the main body section 8.

As shown in FIGS. 1 and 3, the main body 8 rotatably supports the lid 10 from a substantially horizontal position to a substantially vertical position (arrow R1). Thereby, the lid 10 can be rotated in the vertical direction and the depth direction.

The lid 10 is a member for opening and closing the main body 8 and the pot 4. The lid 10 includes various parts for operating the heating cooker 2, and for example, as shown in FIG. 5, a control section 11 is built therein. The control unit 11 is illustrated in a simplified manner.

As shown in FIGS. 3 and 4A, the lid 10 includes an outer lid 12 and an inner lid 14 (FIGS. 3 and 4A). The outer lid 12 is a lid for opening and closing the upper opening of the main body 8, and the inner lid 14 is a lid for sealing the upper opening of the pot 4. The inner lid 14 is removably attached to the inside (lower surface side) of the outer lid 12. 3 shows a state in which the inner cover 14 is removed from the outer cover 12, and FIG. 4A shows a state in which the inner cover 14 is attached to the outer cover 12.

As shown in FIGS. 1 and 2, the outer lid 12 includes a vent 16 and a handle 201.

The vent 16 is an opening for ventilating the cooking space S1 of the pot 4 to the outside. The vent 16 is switched between a communicating state in which it communicates with the cooking space S1 and a non-communicating state in which it does not communicate with the cooking space S1 by a pressure reducing valve 26, which will be described later. In the communicating state, the pressure in the cooking space S1 is atmospheric pressure, and in the non-communicating state, the cooking space S1 is sealed by the inner lid 14 and has a pressure independent of atmospheric pressure.

The handle 201 is a member that the user rotates to switch the lid 10 between a locked state and an unlocked state. The handle 201 is rotated around a rotation axis Ax extending in the thickness direction of the lid 10 (arrow R2). The thickness direction of the lid 10 generally coincides with the vertical direction when the lid 10 is closed (FIGS. 1 and 2), and approximately coincides with the horizontal direction when the lid 10 is open (FIG. 3).

As shown in FIGS. 3 and 4A, the inner lid 14 includes an inner lid main body 20 and a packing 22. As shown in FIGS.

The inner lid main body 20 corresponds to the main body of the inner lid 14, and has a generally disk-like shape. A packing 22 is attached to the outer periphery of the inner lid body 20. The packing 22 is a generally annular member attached to the outer periphery of the inner lid body 20, and is made of an elastic material such as rubber. When the lid 10 is closed, the packing 22 comes into contact with the upper end 4A of the pot 4 and seals the cooking space S1.

The inner lid main body portion 20 is provided with a safety valve 24, a pressure reducing valve 26, and a lock ring regulating valve 28.

The safety valve 24, the pressure reducing valve 26, and the lock ring regulating valve 28 are all valves attached to the inner lid main body part 20, and are arranged so as to be exposed to the cooking space S1. As shown in FIG. 5, a ventilation space S2 communicating with the ventilation port 16 is provided on the upper surface side of the inner lid body 20. As shown in FIG. The safety valve 24 and the pressure reducing valve 26 each operate to switch between a communicating state and a non-communicating state between the cooking space S1 and the ventilation space S2.

The safety valve 24 is a valve that operates spontaneously in response to an increase in pressure in the cooking space S1. The safety valve 24 is arranged at a position that seals the cooking space S1, and moves from the sealed position to the open position in response to the pressure in the cooking space S1 rising to a predetermined pressure or higher. The safety valve 24 prevents the cooking space S1 from becoming overpressurized.

The pressure reducing valve 26 is a valve that is automatically operated mainly under the control of the control unit 11. The pressure reducing valve 26 of this embodiment is also configured to operate in conjunction with the handle 201 when the handle 201 is operated in a specific direction. The pressure reducing valve 26 is movable between a sealed position where the cooking space S1 is sealed and an open position where the cooking space S1 is opened to atmospheric pressure, and its position is controlled by the control unit 11. A valve drive section 40 is provided above the pressure reducing valve 26, and the control section 11 drives the valve drive section 40 to control the position of the pressure reducing valve 26. The pressure reducing valve 26 may also be referred to as a "pressure release valve" or a "pressure release valve."

Like the safety valve 24, the lock ring regulation valve 28 is a valve that operates spontaneously in response to an increase in pressure in the cooking space S1. The lock ring regulating valve 28 is provided to automatically regulate the rotational movement of a lock ring 216 (lid locking member), which will be described later. The lock ring regulation valve 28 moves from a non-restriction position where the rotation of the lock ring 216 is enabled to a regulation position where the rotation of the lock ring 216 is restricted in response to the pressure in the cooking space S1 rising to a predetermined pressure or higher. Move to. Here, the non-restricted position of the lock ring restriction valve 28 is a position lower in the height direction than the restricted position. Unlike the safety valve 24 and the pressure reducing valve 26, the position of the lock ring regulating valve 28 does not affect the pressure in the cooking space S1.

Here, the detailed configuration of the pressure reducing valve 26 will be explained using FIGS. 6A and 6B. 6A and 6B are vertical cross-sectional views schematically showing the peripheral structure of the pressure reducing valve 26, respectively. FIG. 6A shows a sealed state in which the cooking space S1 is sealed, and FIG. 6B shows a sealed state in which the cooking space S1 is sealed. Shows the open state, open to atmospheric pressure.

As shown in FIGS. 6A and 6B, the pressure reducing valve 26 includes a valve body 30, a packing 32, a spring 34, and a valve receiving portion 36.

The valve body 30 is a movable part that moves between a sealing position (FIG. 6A) that seals the cooking space S1 and an open position (FIG. 6B), and is a rod-shaped member that extends in the vertical direction. The valve body 30 is inserted into an opening 37 of a valve receiving portion 36 erected on the inner lid main body portion 20 .

An enlarged diameter portion 38 disposed in the cooking space S1 is provided at the center of the valve body 30. The enlarged diameter portion 38 is a portion for attaching the sealing packing 32. When the packing 32 comes into contact with the lower surface of the valve receiving portion 36 around the opening 37, it seals the cooking space S1.

The spring 34 is a biasing member for biasing the valve body 30 toward the sealing position, and applies a biasing force F3 toward the ventilation space S2 to the valve body 30.

Above the valve body 30, the aforementioned valve driving section 40 is provided. The valve drive unit 40 includes a valve holding member 42, a support member 44, and a valve drive lever 82.

The valve pressing member 42 is a member that is disposed above the valve body 30 and engages to selectively press the valve body 30, and is elastically supported by the support member 44. The support member 44 is locked to a valve holder accommodating portion 116 (see FIG. 18, etc.), which will be described later. The valve drive lever 82 is disposed above the valve holding member 42, and moves in the lateral direction B (in the circumferential direction when viewed from above) in a front view in FIGS. ) is a member that is driven along the The valve drive lever 82 has a bottom surface 48 that contacts the upper end of the valve presser member 42, and the bottom surface 48 forms an inclined surface 98 that is inclined along the drive direction, so that the height position of the valve presser member 42 can be adjusted. Be changed.

As shown in FIG. 6B, when the low height portion of the bottom surface 48 comes into contact with the valve holding member 42, the valve holding member 42 is pressed downward and presses the valve body 30 downward (arrow F4). As a result, the contact between the packing 32 and the valve receiving portion 36 is released, the cooking space S1 and the ventilation space S2 are brought into communication, and the cooking space S1 is opened to atmospheric pressure. The detailed mechanism and operation of the valve drive section 40 will be described later.

Next, a lid locking mechanism for locking the lid 10 to open and close will be explained using FIGS. 7 to 11.

7 and 8 are enlarged perspective views showing the lid 10 with a part of the outer lid 12 omitted. 7 and 8 show the same state from different angles.

The heating cooker 2 of this embodiment is provided with a double lid locking mechanism. Specifically, a lid hook 214 (first lid locking member) that locks the opening and closing of the lid 10 by engaging with the main body 8 and a lock ring 216 (first lid locking member) that restricts opening and closing of the lid 10 by engaging with the pot 4 are used. A second lid locking member) is provided.

The lid hook 214 is a hook-shaped member provided on the lid 10, and has a tip bent inward. When the lid 10 is closed, the lid hook 214 is hooked onto a hook receiving portion 215 provided on the main body portion 8. This brings the lid 10 into a locked state in which the opening operation is restricted.

The lock ring 216 is a ring-shaped member provided on the lid 10, and is locked to a flange portion 60 (FIG. 9) of the pot 4, which will be described later. The operation of the inner lid 14 is regulated. The lock ring 216 is connected to the handle 201 inside the lid 10 and is provided so as to be integrally rotatable (arrow R3) as the handle 201 is rotated (arrow R2).

FIG. 9 is an exploded perspective view of the pot 4 and the lock ring 216.

As shown in FIG. 9, a plurality of flange portions 217 are provided on the lower surface side of the lock ring 216. The flange portions 217 are protruding portions that protrude toward the center of the lock ring 216, and are spaced apart from each other along the circumferential direction (arrow R4).

Similarly, a plurality of flange portions 60 are provided at the upper end portion 4A of the pot 4. The flange portions 60 are protruding portions that protrude toward the outer circumferential side of the pot 4, and are arranged at intervals along the circumferential direction (arrow R4).

10A to 10C are plan views showing the relative positional relationship between the pot 4 and the lock ring 216, respectively. 10A corresponds to an unlocked state, FIG. 10B corresponds to a half-locked state, and FIG. 10C corresponds to a locked state. In FIGS. 10A-10C, the pot 4 is illustrated in solid lines and the lock ring 216 is schematically illustrated in dotted lines.

When closing the lid 10, as shown in FIG. 10A, the flange portion 217 of the lock ring 216 and the flange portion 60 of the pot 4 are in a position where they do not overlap in plan view, so the flange portions 217 overlap the adjacent flange portions 60. The flange portion 60 is disposed below the flange portion 60 by passing between the two portions. In this state, by rotating the handle 201 and rotating the lock ring 216 relative to the pot 4, a locked state in which the flange portion 60 and the flange portion 217 overlap in plan view as shown in FIG. 10C, and a locked state as shown in FIG. 10A You can switch between unlocked states that do not overlap, as shown in the figure below. As shown in FIG. 10B, at the rotational position where the flange portion 60 and the flange portion 217 partially overlap, a “half-locked state” is achieved. In the half-locked state, the lid 10 is incompletely locked, and is preferably in a completely locked state as shown in FIG. 10C.

To release the locked state of the lid 10, the handle 201 may be rotated in the opposite direction.

As shown in FIGS. 7 and 8, a lid lock drive section 200 for operating a lid hook 214 and a lock ring 216 is connected to the handle 201. The lid lock drive unit 200 has a slide member 212 that rotates integrally with the handle 201. By sliding the slide member 212, the locked state by the lid hook 214 and the locked state by the lock ring 216 can be released.

As shown in FIG. 8, the slide member 212 has a first end 212A and a second end 212B. The second end 212B of the slide member 212 contacts the upper end 214A of the lid hook 214 and releases the lower end 214B from the hook receiver 215, thereby releasing the lid hook 214. Further, the slide member 212 and the lock ring 216 are connected to each other through a long hole and a pin, which will be described later, and as the slide member 212 rotates, the lock ring 216 rotates in the same direction. Thereby, the lock ring 216 can be brought into the unlocked state.

As described above, by rotating the handle 201, the locked state/unlocked state by the lid hook 214 and the locked state/unlocked state by the lock ring 216 can be switched.

Next, the configuration and operation of the lock ring regulating valve 28 will be explained using FIGS. 11A to 11C. 11A to 11C are perspective views viewed from above, showing the peripheral structure of the lock ring regulating valve 28. FIG. FIG. 11A shows a state before the rotation of the lock ring 216 is restricted, FIG. 11B shows a state in which the lock ring 216 is rotatable, and FIG. 11C shows a state in which the rotation of the lock ring 216 is restricted. .

The lock ring regulating valve 28 shown in FIGS. 11A to 11C moves up and down along the central axis Z of the lock ring regulating valve 28 according to the pressure in the cooking space S1 (not shown) located below the ventilation space S2. It works like this. The lock ring regulating valve 28 is urged downward by an unillustrated urging means (arrow F5).

A regulating pin 70 is provided near the lock ring regulating valve 28 . The restriction pin 70 is a rod-shaped member for restricting the rotational movement of the lock ring 216, and is urged in a direction toward the lock ring restriction valve 28 along the axis Y by the urging means 72 (arrow F6). .

The lock ring 216 has a pin receiving portion 74 for receiving the regulating pin 70. When the regulating pin 70 moves in the direction approaching the pin receiving portion 74, the regulating pin 70 comes into contact with the pin receiving portion 74, and the rotational movement of the lock ring 216 is regulated.

In the example shown in FIG. 11A, the pressure in the cooking space S1 is less than the predetermined pressure, and the lock ring regulating valve 28 does not protrude upward along the central axis Z. At this time, the lock ring regulating valve 28 does not press the regulating pin 70 toward the pin receiving part 74, and the regulating pin 70 is separated from the pin receiving part 74 to such an extent that it does not come into contact with it. Therefore, the lock ring 216 can rotate in the circumferential direction (arrow R3) as shown in FIG. 11B (arrow F7).

When the pressure in the cooking space S1 rises to a predetermined pressure or higher, the lock ring regulating valve 28 moves upward along the central axis Z as shown in FIG. 11C (arrow F8). The raised lock ring regulating valve 28 presses the regulating pin 70 toward the pin receiving portion 74 (arrow F9). As a result, the restriction pin 70 protrudes to a position where it can contact the pin receiving portion 74, and when the lock ring 216 attempts to rotate, the restriction pin 70 contacts the pin receiving portion 74, and further rotational movement is restricted. (Arrow F7 is shown as a dotted line).

According to the above operation, the lock ring regulating valve 28 spontaneously operates to regulate the rotational operation of the lock ring 216 in response to the cooking space S1 being pressurized to a predetermined pressure or higher. This makes it possible to prevent the user from opening the lid 10 when the cooking space S1 is pressurized to a predetermined pressure or higher.

Next, the configurations of the valve drive section 40 and the lid lock drive section 200 will be explained using FIGS. 12 to 32C.

FIG. 12 is a perspective view of the heating cooker 2 with the handle 201 omitted, and FIG. 13 is an enlarged perspective view of section A in FIG. 12.

As shown in FIGS. 12 and 13, the lid 10 includes a shaft member 203 built therein. The shaft member 203 is a shaft member that is connected to the handle 201 (not shown) and rotates integrally with the handle 201. The shaft member 203 overlaps the rotation axis Ax of the handle 201 and constitutes the lid lock drive section 200 together with the handle 201.

14 to 16 are a perspective view and a plan view showing the lid 10 with a part of the outer lid 12 omitted. As shown in FIGS. 14 to 16, a valve drive section 40 and a lid lock drive section 200 are built inside the lid 10.

The valve drive unit 40 has a cover member 78 shown in FIG. 14, and FIGS. 15 and 16 show a state in which the cover member 78 is omitted.

The shaft member 203 passes through the center of the valve drive section 40 including the cover member 78, and is connected to the rotating arm 206 that constitutes the lid lock drive section 200 at a position below the valve drive section 40.

As shown in FIGS. 14 to 16, a substrate case 80 is provided at a position adjacent to the valve driving section 40. As shown in FIGS. The board case 80 is a case for arranging a board (not shown), and the board arranged in the board case 80 constitutes the control unit 11 shown in FIG.

As shown in FIG. 16, the lid 10 is provided with a substrate 154 as a lid opening/closing detection means 150 for detecting whether the lid 10 is opened or closed. The lid opening/closing detection means 150 of this embodiment includes a magnet 152 shown in FIG. 4B and a substrate 154 shown in FIG. 16. The substrate 154 of this embodiment is a substrate mounted with a Hall element capable of detecting magnetic force, and is capable of detecting the magnetic force of the magnet 152 built into the main body 8 shown in FIG. 4B. The substrate 154 transmits the detection result of the magnetic force by the Hall element to the control unit 11.

Since the detection result of the magnetic force by the Hall element changes depending on the open/closed state of the lid 10, by transmitting the detection result from the board 154 to the control unit 11, the control unit 11 can specify the open/closed state of the lid 10.

Next, the detailed configuration of the valve driving section 40 will be explained using FIGS. 17 to 23. FIG. 17 is an enlarged plan view of the valve drive section 40, and FIGS. 18 and 19 are exploded perspective views showing the main components of the valve drive section 40, respectively. 20 and 21 are a top view and a bottom view of the valve drive lever 82, respectively, and FIGS. 22 and 23 are a top view and a bottom view of the support plate 84, respectively.

As shown in FIGS. 17 to 19, the valve drive section 40 includes a valve drive lever 82 and a support plate 84. As shown in FIGS.

The valve drive lever 82 is a member (rotating unit) that rotates under the control of the control unit 11 (arrow R5). As shown in FIGS. 6A and 6B, the valve drive lever 82 has a function of variably operating the position of the pressure reducing valve 26, and is supported by a support plate 84. The support plate 84 is a plate-shaped member that movably supports the valve drive lever 82 from below.

The valve drive lever 82 has a shape in which a plurality of arms are connected. As shown in FIGS. 18 to 21, the valve drive lever 82 includes an arcuate arm 86, a plurality of connecting arms 88, and a center of rotation 90. As shown in FIGS.

The arcuate arm 86 is a portion that extends in an arc shape with the rotation center portion 90 as the center, and is located at the outermost side of the valve drive lever 82 in the radial direction. The arcuate arm 86 has a gear portion 92, a push-down portion 94, and a long hole 96.

The gear portion 92 has a gear shape for transmitting the rotational driving force of the motor 102 shown in FIG. 18 to the valve drive lever 82, and is engaged with the gear portion 104. The gear parts 92 and 104 of this embodiment are each comprised of spur gears. The axial direction C of the teeth in the gear parts 92 and 104 is the thickness direction of the lid 10, that is, the vertical direction.

The push-down portion 94 is a member that operates to push down the valve holding member 42 shown in FIG. The push-down portion 94 of this embodiment has an inclined surface 98 on the lower surface side facing the valve holding member 42. The inclined surface 98 is a surface whose height changes along the moving direction of the valve drive lever 82, and is lower on the side closer to the gear part 92 (that is, closer to the valve holding member 42) and higher on the side closer to the elongated hole 96. (that is, far from the valve holding member 42).

The elongated hole 96 is a space into which a connecting pin 208 of a lid lock driving section 200, which will be described later, is inserted. The elongated hole 96 extends in an arc shape along the direction in which the arc arm 86 extends. By inserting the connecting pin 208 into the elongated hole 96, the valve drive section 40 and the lid lock drive section 200 can be interlocked.

The plurality of connection arms 88 are portions that extend to connect the arc arm 86 and the rotation center portion 90. A member arrangement space 99 in which other members can be arranged is formed in a region surrounded by the arcuate arm 86 and the connection arm 88.

An annular rib 89 is provided on the upper surface of the arcuate arm 86 and the connecting arm 88 . The rib 89 is a protrusion provided so as to come into contact with the cover member 78 (FIG. 14) disposed above the valve drive lever 82. By the rib 89 contacting the cover member 78, friction when the valve drive lever 82 slides with respect to the cover member 78 can be reduced, and the operation of the valve drive lever 82 is made more stable. Note that the ribs 89 are in contact with the cover member 78 only while the cooking space S1 is being depressurized from a pressurized state higher than atmospheric pressure, and there is a gap between the ribs 89 and the cover member 78 in other states. .

The rotation center portion 90 is a portion located at the rotation center of the valve drive lever 82. The rotation center portion 90 has a through hole 100, into which the shaft member 203 described above is inserted. The rotation axis Ax of the valve drive section 40 including the valve drive lever 82 and the rotation axis Ax of the lid lock drive section 200 including the shaft member 203 coincide with each other. That is, the valve drive section 40 and the lid lock drive section 200 are configured coaxially. By making them coaxial, axis misalignment can be suppressed. Also, by making them coaxial, the width of the elongated hole 96 can be made smaller than when they are not coaxial, and space can be saved by omitting the movable parts of the valve drive lever 82 and the lid lock drive part 200. There is an effect.

The valve drive section 40 further includes a motor 102 and a gear section 104. The motor 102 is a drive source for rotationally driving the valve drive lever 82, and a gear portion 104 is connected to the tip of the motor 102. The gear portion 104 has a gear shape that is rotationally driven by the motor 102, and meshes with the gear portion 92 of the valve drive lever 82 described above.

24A and 24B are plan views for explaining the general operation of the valve driving section 40. FIG. 24A corresponds to the closed state of the pressure reducing valve 26 (not shown), and FIG. 24B corresponds to the open state of the pressure reducing valve 26.

As shown in FIG. 24A, when the gear section 104 rotates counterclockwise due to the rotational drive of the motor 102 (arrow R20), the valve drive lever 82 having the gear section 92 is rotationally driven counterclockwise (arrow R6). . At the position where the valve drive lever 82 is rotated most counterclockwise, the push-down portion 94 does not contact the valve holding member 42 and does not push the valve holding member 42 downward. At this time, the pressure reducing valve 26 is located at the sealing position to seal the cooking space S1 (FIG. 6A).

As shown in FIG. 24B, when the gear portion 104 rotates clockwise (arrow R21) due to the rotational drive of the motor 102, the valve drive lever 82 is rotationally driven clockwise (arrow R7). In the process until the valve drive lever 82 rotates most clockwise, the push-down portion 94 contacts the valve holding member 42 and pushes the valve holding member 42 downward. At this time, the pressure reducing valve 26 is located at an open position that opens the cooking space S1 to atmospheric pressure (FIG. 6B).

According to the above operation, the control unit 11 rotationally drives the motor 102, so that the valve drive lever 82 can be moved toward the closed position (FIG. 24A) or the open position (FIG. 24B).

Note that the pressure reducing valve 26 and the valve holding member 42 move up and down depending on the pressure in the cooking space S1. Correspondingly, the valve drive lever 82 is also pushed by the valve holding member 42 and a force is applied to move it up and down. It extends up and down along the direction of movement. Therefore, even when a vertical force acts on the valve drive lever 82, no force is applied from the gear section 92 to the gear section 104, and unnecessary force is not applied to the motor 102. can.

The motor 102 and gear section 104 described above are attached to the support plate 84.

As shown in FIG. 18, the support plate 84 includes a lower surface 106 that supports the valve drive lever 82 from below, and a plurality of walls 108, 110, 112 surrounding the outer periphery of the valve drive lever 82.

The walls 108, 110, and 112 all have a shape that rises upward from the lower surface 106, and form a space inside for arranging the valve drive lever 82. Wall portion 108 extends in an arc shape, and wall portions 110 and 112 extend in a straight line.

The wall portion 108 is provided at a position facing the outer peripheral portion of the arcuate arm 86, and the wall portions 110 and 112 are provided at positions facing one end and the other end of the arcuate arm 86, respectively. The wall portion 110 restricts the counterclockwise rotation (arrow R6) of the valve drive lever 82, and the wall portion 112 restricts the clockwise rotation (arrow R7) of the valve drive lever 82. The valve drive lever 82 is rotatable in a section surrounded by the wall 110 and the wall 112.

The support plate 84 further includes a through hole 114, a valve holder accommodating portion 116, a groove portion 118, a long hole 120, a motor mounting portion 122, and at least three screw receiving portions 160, 162, and 164.

The through hole 114 is a hole through which the shaft member 203 described above is inserted, and overlaps with the through hole 100 provided in the rotation center portion 90 of the valve drive lever 82.

The valve holder accommodating portion 116 is a space for accommodating the valve holder member 42. A support member 44 (not shown) shown in FIGS. 6A and 6B is engaged with the valve holder accommodating portion 116, and elastically supports the valve holder 42.

The groove portion 118 is an arc-shaped groove portion for guiding the rotational movement of the arc arm 86 of the valve drive lever 82 . A long hole 120 is formed in the groove portion 118 .

The elongated hole 120 is a through hole through which the connecting pin 208 of the lid lock drive section 200 described above is inserted. The long holes 120 are formed in an arc shape like the long holes 96, and are arranged so that the long holes 96 overlap.

The motor attachment portion 122 is a portion for attaching and supporting the motor 102 and gear portion 104 described above. The motor attachment part 122 has a fixing part 124 for fixing the main body part 102A of the motor 102, and a through hole 126 for inserting the rotating shaft 102B of the motor 102. The gear portion 104 is attached to the rotating shaft 102B inserted through the through hole 126.

The screw receiving portion 160 is a portion (boss portion) for receiving a screw 166 shown in FIG. 17. Similarly, the screw receiving part 162 is a part for receiving the screw 168 shown in FIG. 17, and the screw receiving part 164 is a part for receiving the screw 170 shown in FIG. Screws 166, 168, 170 inserted into screw receivers 160, 162, 164, respectively, are fixed to a block 172 (FIG. 17) that forms vent 16. Thereby, the support plate 84 can be firmly fixed to the block 172 and fixed to the lid 10.

The screw receiving parts 160, 162, and 164 are provided near the valve holder housing part 116. In the valve holder accommodating portion 116, when the internal pressure of the pot 4 is high, that is, when the cooking space S1 is in a pressurized state higher than atmospheric pressure, the repulsive force caused by the pressure reducing valve 26 being pushed down by the valve drive lever 82 is large. As a result, the valve drive lever 82 and the support plate 84 are likely to be deformed. In contrast, deformation of the valve drive lever 82 and the support plate 84 is suppressed by providing a plurality of screw receiving parts 160, 162, 164 around the valve holder housing part 116 and fixing the support plate 84 to the block 172. This contributes to improving the slidability of the valve drive lever 82.

In the installed state shown in FIG. 17, the screw receivers 162 and 164 are located outside the valve drive lever 82, whereas the screw receiver 160 is located inside the valve drive lever 82. By providing the screw receiving part 160 not only on the outside but also on the inside of the valve drive lever 82 and fixing it, it is possible to change the structure from a cantilever to a double-end structure, and it is possible to suppress deformation of the valve drive part 40. can.

As shown in FIGS. 24A and 24B, a gear part 104, a motor mounting part 122, and a screw receiving part 160 are arranged in the member arrangement space 99 of the valve drive lever 82. By accommodating a plurality of members in the member arrangement space 99, the space inside the valve drive lever 82 can be effectively utilized, and the horizontal dimension of the valve drive unit 40 can be prevented from increasing in one direction. Can be done. This leads to a reduction in the size of the valve drive unit 40 and the size of the lid 10 including the valve drive unit 40.

The size of the member arrangement space 99 is such that in the rotation range of the valve drive lever 82 from FIG. 24A to FIG. The size is set so that it does not come into contact with the inner walls of the arms 86 and 88. Thereby, a plurality of members can be arranged in the member arrangement space 99 without interfering with the operation of the valve drive lever 82.

By arranging the screw receiving portion 160 in the member arrangement space 99, it becomes possible to fix the support plate 84 at a position close to the center thereof, and the effect of improving the strength is further increased.

In the above configuration, as shown in FIGS. 24A and 24B, by making the operation of the valve drive unit 40 rotational rather than linear, the internal space of the lid 10 can be effectively utilized to arrange the valve drive unit 40. can do. Compared to a configuration in which the valve drive unit moves linearly, the valve drive unit 40 can be arranged by effectively utilizing the circular shape of the lid 10 in plan view, and the horizontal and height dimensions of the lid 10 can be arranged mainly. It is possible to reduce the size of the heating cooker 2.

Here, the engagement relationship between the first connecting pin 208 and the elongated hole 96 will be explained using FIGS. 25A and 25B. 25A and 25B are respectively enlarged plan views of the first connecting pin 208 and the long hole 96, and FIG. 25A corresponds to the state shown in FIG. 24A, and FIG. 25B corresponds to the state shown in FIG. 24B. .

As shown in FIGS. 25A and 25B, the inner wall of the arcuate arm 86 constituting the elongated hole 96 has two ends that can be engaged with the first connecting pin 208, a first end 240 and a second end. It has 242. The first end 240 and the second end 242 each correspond to the terminal end of the elongated hole 96. The first end 240 is the end of the long hole 96 in the valve opening direction (arrow R7), and the second end 242 is the end in the valve sealing direction (arrow R6).

According to the configuration shown in FIGS. 25A and 25B, the first connecting pin 208 depends on whether (1) the main body of movement is the first connecting pin 208 or the valve drive lever 82, and (2) whether the moving direction is clockwise or counterclockwise. The engagement relationship between the valve drive lever 82 and the valve drive lever 82, that is, the interlocking relationship between the valve drive section 40 and the lid lock drive section 200 is switched.

For example, if the first connecting pin 208 or the valve drive lever 82 operates such that the first connecting pin 208 maintains contact with either end 240, 242 of the elongated hole 96, the valve drive unit 40 and The lid lock drive unit 200 is in the interlocked state. On the other hand, when the first connecting pin 208 or the valve drive lever 82 operates such that the first connecting pin 208 moves/relatively moves between the ends 240 and 242 of the elongated hole 96, the valve drive unit 40 and the lid The lock drive unit 200 is now in a disengaged state.

As described above, according to the configuration in which the valve drive unit 40 and the lid lock drive unit 200 are interlocked by the engagement relationship between the first connecting pin 208 and the elongated hole 96, the interlocking state and the non-interlocking state are determined depending on the moving body and the moving direction. can be switched. Thereby, a desired operation can be realized, and the details of the operation will be described later.

Next, the detailed configuration of the lid lock driving section 200 will be explained using FIGS. 26 to 31.

26 is a perspective view showing the peripheral structure of the lid lock drive section 200, FIG. 27 is a perspective view showing the main parts of the lid lock drive section 200, and FIG. 28 is a perspective view showing the base member 202. 29 is an enlarged perspective view of the periphery of the lid lock detection means 228 in FIG. be.

As shown in FIGS. 26 to 31, the lid lock drive unit 200 is supported from below by a base member 202, and a lock ring 216 shown in FIG. 27 is rotatably disposed below the base member 202. Ru.

The lid lock drive unit 200 includes a rotating arm 206, a first connecting pin 208, a second connecting pin 210, and a slide member 212.

The rotating arm 206 is a member that rotates integrally with the rotation of the shaft member 203 (arrow R2) (arrow R8), and extends in the radial direction D perpendicular to the rotation axis Ax. A fixed plate 207 is provided above one side of the rotating arm 206 in the radial direction D. The fixed plate 207 is a plate-shaped member fixed to the base member 202, and is arranged above the rotating arm 206 with a space therebetween, and the shaft member 203 is inserted therethrough.

A first connecting pin 208 is provided upright in the middle of the rotating arm 206 in the radial direction D. The first connecting pin 208 is a rod-shaped member that is inserted into the elongated hole 96 (FIGS. 24A to 25B) of the valve drive lever 82 described above, and causes the valve drive lever 82 and the rotating arm 206 to interlock with each other.

A connecting portion 220 is provided at the other end of the rotating arm 206 in the radial direction D. The connecting portion 220 is a portion connected to the slide member 212, and connects the rotating arm 206 and the slide member 212 so that they rotate together. A long hole 224 is formed in the connecting portion 220, and the second connecting pin 210 is inserted into the long hole 224. The second connection pin 210 is a rod-shaped member that is erected on the lock ring 216 shown in FIG. 27, and projects upward from the base member 202 through the elongated hole 226 of the base member 202 shown in FIG.

The slide member 212 is a member that slides on the outer periphery of the base member 202, and rotates together with the rotating arm 206 (arrow R8).

As shown in FIGS. 30 and 31, the first end 212A of the slide member 212 is an end connected to the connecting portion 220, and contact is detected by a lid lock detection means 228, which will be described later. The second end 212B of the slide member 212 is an end that engages with the lid hook 214 shown in FIGS. 26 and 28 to unlock the lid 10 by the lid hook 214.

As shown in FIGS. 28 and 29, a lid lock detection means 228 is provided near the elongated hole 226. The lid lock detection means 228 is means for detecting that the lid 10 is in a locked state. The lid lock detection means 228 of this embodiment is a microswitch that can detect that the first end 212A of the slide member 212 comes into contact.

In FIG. 29, the first end 212A of the slide member 212 is schematically indicated by a dotted line. The first end portion 212A slides in the circumferential direction (arrow R8) between a detection position P1 where it contacts the lid lock detection means 228 and a non-detection position P2 where it does not come into contact with the lid lock detection means 228 (arrow F10). ). The first end 212A contacts the lid lock detection means 228 in the radial direction D at the detection position P1. Since the contact direction is in the radial direction D, even if the first end 212A contacts the lid lock detection means 228, no vertical force is applied to the slide member 212, the lock ring 216, etc. Thereby, the influence on the operation of the lid lock drive section 200 can be reduced.

As shown in FIG. 26, when the lid lock detection means 228 detects contact of the first end 212A, it is determined that the lid 10 is locked by the lock ring 216. The control unit 11 determines that the lid is in the locked state based on the detection signal transmitted from the lid lock detection means 228.

As shown in FIG. 29, a protrusion 229 is provided near the long hole 226. The convex portion 229 is a convex portion provided on the surface of the base member 202 and engages with the first end portion 212A of the slide member 212. At the rotational position where the first end 212A contacts the convex portion 229 (between the detection position P1 and the non-detection position P2 shown in FIG. 29), a click feeling occurs when the user rotates the handle 201. The position of the convex portion 229 is set at such a position that the first end 212A comes into contact with the first end 212A when the first end 212A starts moving from the locked position where it contacts the lid lock detection means 228 toward the unlocked position. . Thereby, it is possible to notify the user with a click feeling that the unlocking operation of the lid 10 has started.

As shown in FIG. 31, the lower end of the shaft member 203 is inserted into the rotary arm 206 at a position below the fixed plate 207. As shown in FIG. A friction member 230 is provided in the middle of the rotating arm 206, and a friction member 232 is similarly provided on the lower surface of the fixed plate 207. Each of the friction members 230 and 232 is made of a material with a high coefficient of friction, such as rubber. Normally, there is a space between the friction member 230 and the friction member 232 in the vertical direction, the friction members 230 and 232 do not contact each other, and the rotating arm 206 can rotate relative to the fixed plate 207. (arrow R8).

If the user lifts the handle 201, the lock drive unit 200 including the shaft member 203, the rotating arm 206, etc. connected to the handle 201 will be lifted up as a unit. The friction member 230 provided on the rotating arm 206 rises to come into contact with the friction member 232 of the fixed plate 207, and a high frictional force is generated by the contact between the friction members 230 and 232. This restricts the rotation of the rotating arm 206, so that when the user lifts the handle 201, it is possible to prevent the lid lock drive section 200 from unintentionally operating.

The operation of the lid lock drive unit 200 having the above-described configuration will be explained using FIGS. 32A to 32C.

32A to 32C are plan views for explaining the operation of the lid lock driving section 200, respectively.

FIG. 32A shows a state in which the lid lock drive unit 200 is rotated most counterclockwise. At this time, the lid 10 is in a locked state by the lid hook 214 and the lid 10 is in a locked state by the lock ring 216. When the user rotates the handle 201 clockwise, the shaft member 203 rotates clockwise (arrow R2), and the rotating arm 206 and slide member 212 also rotate clockwise (arrow R8). Since the second connecting pin 210 erected in the lock ring 216 is disposed in the elongated hole 224, the rotating arm 206 and the sliding member 212 begin to rotate clockwise and do not engage with the connecting portion 220 for a certain section. Lock ring 216 does not rotate.

Here, the engagement relationship between the second connecting pin 210 and the elongated hole 224 will be explained using FIGS. 32D and 32E. 32D and 32E are respectively enlarged plan views of the second connecting pin 210 and the elongated hole 224. FIG. 32D corresponds to the state shown in FIG. 32A, and FIG. 32E corresponds to the state shown in FIG. 32B. .

As shown in FIGS. 32D and 32E, the inner wall portion constituting the elongated hole 224 has a first end 250 and a second end 252 as two ends that can be engaged with the second connecting pin 210. The first end 250 and the second end 252 are each a terminal end of the elongated hole 224 and are defined by an inner wall surrounding the elongated hole 224 . The first end 250 is the end of the long hole 224 in the lock release direction (arrow R8), and the second end 252B is the end in the lock direction (arrow R20).

In the state shown in FIG. 32D, the second connecting pin 210 is engaged with the first end 250 of the elongated hole 224, so even if the rotating arm 206 moves in the unlocking direction (arrow R8), the second connecting pin 210 is not connected to the second connecting pin 210. The pin 210 only moves relatively from the first end 250 toward the second end 252 inside the elongated hole 224 and does not engage the rotating arm 206 . Therefore, the interlock between the valve drive unit 40 and the lid lock drive unit 200 is released, and the lock ring 216 connected to the second connection pin 210 does not rotate.

When the shaft member 203 further rotates clockwise, as shown in FIG. 32B, the second connecting pin 210 engages with the connecting portion 220 forming the elongated hole 224, so that the lock ring 216 also begins to rotate integrally. . In this way, the lock ring 216 starts its rotational movement later than the rotation arm 206 and the slide member 212. When the lock ring 216 begins to rotate, the overlapping area between the flange portions 60 and 217 shown in FIGS. 9 and 10 decreases, and the locked state becomes a semi-locked state.

As shown in FIG. 32E, when the second connecting pin 210 engages with the second end 252 of the elongated hole 224, the valve drive section 40 and the lid lock drive section 200 are in an interlocked state. As the rotating arm 206 rotates in the unlocking direction (arrow R8), the second connecting pin 210 is pressed by the second end 252, and the lock ring 216 rotates.

When the shaft member 203 further rotates clockwise, the second end 212B of the slide member 212 engages with the lid hook 214, and the lid 10 is unlocked by the lid hook 214, as shown in FIG. 32C. At the same time, since the overlapping area between the flange portions 60 and 217 shown in FIGS. 9 and 10 is eliminated, the locking of the lid 10 by the lock ring 216 is also released. In this way, the double lock by the lid hook 214 and the lock ring 216 is released.

In the above configuration, the valve drive section 40 and the lid lock drive section 200 are connected to each other through the engagement relationship between the elongated hole 96 and the connection pin 208. Thereby, the operation of one of the valve drive section 40 and the lid lock drive section 200 can be linked to the operation of the other. In the heating cooker 2 of this embodiment, the operation and operation of the heating cooker 2 with improved convenience etc. are performed by utilizing such interlocking of the valve drive unit 40 and the lid lock drive unit 200. The operation and operation using the interlocking of the valve drive section 40 and the lid lock drive section 200 will be described below with reference to FIGS. 33 to 37B.

(Execution of pressure cooking menu)
FIG. 33 shows a flowchart regarding processing when executing the pressure cooking menu. Each process shown in FIG. 33 is executed by the control unit 11, for example.

As shown in FIG. 33, the control unit 11 determines whether a lid closed state is detected (S1). Specifically, it is determined whether the closed state of the lid is detected according to the detection result of the magnetic force of the magnet 152 built in the main body 8 by the lid opening/closing detection means 150 shown in FIG. If the lid closed state is not detected (NO in S1), the control unit 11 executes the process in step S1 again.

When the lid closed state is detected (YES in S1), the control unit 11 notifies that cooking is OK (S2). Specifically, on the operation display unit 6 shown in FIG. 2, a message such as "Cooking OK" indicating that cooking can be started is displayed.

The control unit 11 receives selection of a pressure cooking menu (S3). Specifically, in response to the user selecting the pressure cooking menu and pressing the cooking start button on the operation display unit 6 shown in FIG. 2, the selection of the pressure cooking menu is accepted.

The control unit 11 determines whether or not the lid lock is detected (S4). Specifically, in response to the lid lock detection means 228 shown in FIG. 28 and FIG. (YES in S4). Here, "lid lock" means the locked state of the lid hook 214 and the lock ring 216, which can be confirmed based on the detection result of the lid lock detection means 228. Since the lock ring 216 can be closed even when the lid 10 is open, it is possible to check not only the detection result (S4) of the lid lock detection means 228 but also the detection result (S1) of the lid open/close detection means 150. , Make sure that the lid 10 is completely locked, that is, that the lid 10 is closed, and that the lid hook 214 and lock ring 216 are both locked.

When the lid lock is detected (YES in S4), the control unit 11 drives the valve drive unit 40 to move the pressure reducing valve 26 to the sealing position (S5). Specifically, in order to bring the cooking space S1 into a sealed state in accordance with the pressure cooking menu, the valve drive unit 40 is driven to move the pressure reducing valve 26 to the sealed position.

If the lid lock is not detected (NO in S4), the control unit 11 drives the valve drive unit 40 to move the pressure reducing valve 26 to the sealing position (S6), and determines whether or not the lid lock is detected. A judgment is made (S7). Specifically, in step S6, similarly to step S5, the valve drive unit 40 is driven to move the pressure reducing valve 26 to the sealing position. When the lid lock is not detected, that is, when the first end 212A of the slide member 212 is not in contact with the lid lock detection means 228 (unlocked state or half-locked state), the operation of the valve drive unit 40 is linked. As the lid lock drive section 200 operates, the pressure reducing valve 26 moves to the sealing position, and the lock ring 216 also moves to the locking position. As a result, the first end 212A of the slide member 212 also moves to a position where it contacts the lid lock detection means 228, so that the lid lock is confirmed in response to the detection result of the lid lock detection means 228 changing from OFF to ON. (YES in S7). Since the lid is locked by the interlocking of the valve drive unit 40 and the lid lock drive unit 200, it is possible to identify not only that the lid is locked but also that the pressure reducing valve 26 has moved to the sealing position. In this way, even if the user forgets to lock the lid 10 or the lid 10 is not locked sufficiently (that is, the lid 10 is in a half-locked state), the pressure cooking menu can be brought into an executable state.

If the lid lock cannot be confirmed in step S7 (NO in S7), the control unit 11 notifies an error (S8). Specifically, a message or the like indicating a failure of the valve drive unit 40 is displayed on the operation display unit 6.

In response to execution of step S5 or determination of YES in step S7, the control unit 11 executes a pressure cooking menu (S9). Specifically, predetermined pressure cooking is executed by controlling the operation of the heater 9 and the like according to a predetermined sequence according to the pressure cooking menu selected in step S3.

Here, the detailed operation of step S6 will be explained using FIGS. 34A to 34C. 34A to 34C are plan views for explaining the operations of the valve drive section 40 and the lid lock drive section 200 in step S6, respectively.

FIG. 34A shows a state in which the valve drive unit 40 and the lid lock drive unit 200 are rotated most clockwise. At this time, the pressure reducing valve 26 is in the open position, the lid hook 214 is in the unlocked state, and the lock ring 216 is also in the unlocked state.

From the state shown in FIG. 34A, when the control unit 11 rotationally drives the motor 102 shown in FIG. 18 to rotate the valve drive lever 82 counterclockwise (arrow R9), the state shifts to the state shown in FIG. 34B, and then , transitions to the state shown in FIG. 34C. As shown in FIGS. 34B and 34C, the position of the push-down portion 94 of the valve drive lever 82 changes, the pressure reducing valve 26 moves from the open position to the sealed position, and the cooking space S1 is sealed.

At this time, in conjunction with the rotation of the valve drive lever 82, the rotation arm 206 also rotates. Specifically, the first connecting pin 208 disposed in the elongated hole 96 of the valve drive lever 82 rotates counterclockwise in conjunction with the valve drive lever 82, so that the rotating arm 206 having the first connection pin 208 rotates counterclockwise in conjunction with the valve drive lever 82. rotates counterclockwise (arrow R10). As the rotating arm 206 rotates, the slide member 212 connected to the rotating arm 206 also rotates counterclockwise (arrow R11).

As shown in FIG. 34B, when the second end portion 212B of the slide member 212 separates from the lid hook 214, the lid hook 214 is caught on the hook receiving portion 215, and the lid hook 214 is in a locked state. Further, the second connecting pin 210 inserted into the elongated hole 224 of the rotary arm 206 also rotates counterclockwise in accordance with the rotation of the rotary arm 206, so that the lock ring 216 also moves toward the locked state. When the valve drive lever 82 is moved most counterclockwise, the first connecting pin 208 and the second connecting pin 210 are designed to move to the most counterclockwise rotated position as shown in FIG. 34C. . Therefore, the lock ring 216 can also be shifted to the locked state in accordance with the locked state of the lid hook 214.

According to the above operation, by interlocking the operation of the lid lock drive unit 200 with the operation of the valve drive unit 40, the lid lock drive unit 200 locks the lid 10 while the valve drive unit 40 seals the pressure reducing valve 26. Actions can be linked. As a result, the lid 10 can be automatically shifted to the locked state in conjunction with moving the pressure reducing valve 26 to the sealing position at the start of cooking. However, it is possible to make pressure cooking possible. Therefore, the locking operation of the lid 10 by the user can be omitted, and the convenience of using the heating cooker 2 can be improved.

When the state shown in FIG. 34A shifts to the state shown in FIG. 34C, the lid lock detection means 228 detects contact of the slide member 212. Thereby, it can be confirmed that the lid hook 214 and the lock ring 216 are in a double locked state. Since the locked state is a result of the operation of the lid lock drive unit 200 being linked to the operation of the valve drive unit 40, it is also specified that the valve drive lever 82 is moving the pressure reducing valve 26 to the sealing position. be able to. Thereby, it is possible to efficiently and accurately confirm that the preparation for pressure cooking is complete based only on the detection result of the lid lock detection means 228.

When transitioning from the state shown in FIG. 34A to the state shown in FIG. 25B), it rotates integrally in conjunction with the counterclockwise rotation of the valve drive lever 82. On the other hand, the second connecting pin 210 inserted into the elongated hole 224 is engaged with the second end 252 (FIGS. 32D and 32E), which is the counterclockwise end of the elongated hole 224, so that it cannot rotate. It is not linked to the counterclockwise rotation of arm 206 and does not operate. As a result, the lock ring 216 connected to the second connection pin 210 does not operate.

In the state shown in FIG. 34B, the second connecting pin 210 engages with the first end 250, which is the clockwise end of the elongated hole 224, so that it is integrated with the counterclockwise rotation of the rotating arm 206. 34C and shifts to the state shown in FIG. 34C. In this way, the lock ring 216 can be moved to the lock position even though it operates with a delay with respect to the drive of the valve drive lever 82. Furthermore, as will be described later, when rotating the valve drive lever 82 in the opposite direction, the interlock between the valve drive section 40 and the lid lock drive section 200 can be released depending on the connection relationship between the elongated hole 224 and the second connecting pin 210. becomes possible.

When execution of the pressure cooking menu is completed, the control unit 11 drives the valve drive unit 40 to move the pressure reducing valve 26 to the open position (S10). At this time, even if the valve drive unit 40 is driven from the state shown in FIG. 34C to move the pressure reducing valve 26 toward the open position, the design is such that it does not return to the state shown in FIG. 34A. The specific design and operation will be explained using FIG. 35A and FIG. 35B.

FIG. 35A shows the same situation as shown in FIG. 34B. The pressure reducing valve 26 is in a sealed position, the lid hook 214 is in a locked state, and the lock ring 216 is also in a locked state. From this state, when the control unit 11 rotationally drives the motor 102 shown in FIG. 18 to rotate the valve drive lever 82 clockwise (arrow R12), the state shifts to the state shown in FIG. 35B.

As shown in FIG. 35B, the valve drive lever 82 has rotated most clockwise, whereas the rotating arm 206 has not rotated clockwise and remains in the same state as in FIG. 35A. As shown in FIG. 35A, the first connecting pin 208 disposed in the elongated hole 96 is disposed at the most clockwise rotated position in the elongated hole 96, and the valve drive lever 82 including the elongated hole 96 is rotated clockwise. Even when the first connecting pin 208 is rotated, the first connecting pin 208 does not move and remains disposed in the middle of the elongated hole 96.

Due to the engagement relationship between the elongated hole 96 and the first connecting pin 208, when the valve drive unit 40 moves the pressure reducing valve 26 from the sealed position (FIG. 35A) to the open position (FIG. 35B), the lid lock drive is performed. The portion 200 is not interlocked, so that the lid 10 is not unlocked.

According to the above operation, even if the pressure reducing valve 26 is moved to the open position at the end of cooking, the lid 10 can be prevented from being unlocked. Therefore, the user needs to operate the handle 201 to unlock the lid 10, which further improves safety.

The control unit 11 notifies the end of cooking (S11). Specifically, on the operation display section 6 shown in FIG. 2, a message etc. indicating that pressure cooking has been completed is displayed. When the user recognizes that the pressure cooking has ended, he or she can rotate the handle 201 to unlock the lid 10, thereby opening the lid 10 and taking out the food in the pot 4.

(During power outage, etc.)
While the pressure cooking menu is being executed, the operation of the pressure cooker 2 may be stopped due to a power outage or the like. When the cooking space S1 has a predetermined pressure or higher, the lock ring regulating valve 28 described above operates to regulate the rotational movement of the lock ring 216. When the pressure drops to a level where the lock ring regulating valve 28 does not operate, the lid 10 can be opened, but in that case, if the pressure in the cooking space S1 is higher than atmospheric pressure, the food inside is There is a risk of scattering.

In addition, if there is a reduced pressure cooking menu in which the pressure in the cooking space S1 is below atmospheric pressure, if a power outage occurs when the reduced pressure cooking menu is executed instead of the pressure cooking menu, the pressure in the cooking space S1 may be below atmospheric pressure. , even if the lid 10 is attempted to be opened, it cannot be opened. It is necessary to wait for the pressure and temperature of the pot 4 to rise until the lid 10 can be opened.

In order to solve the above problem, in the heating cooker 2 of the present embodiment, the operation of the valve drive section 40 is linked to the operation of the lid lock drive section 200, so that the pressure reducing valve 26 from the sealed position to the open position. The specific operation will be explained using FIG. 36A and FIG. 36B.

36A and 36B are plan views for explaining the operation of the lid lock driving section 200, respectively.

FIG. 36A shows a state in which the valve drive unit 40 and the lid lock drive unit 200 are rotated most counterclockwise. At this time, the pressure reducing valve 26 is in the sealed position, the lid hook 214 is in the locked state, and the lock ring 216 is also in the locked state. In this state, when the user rotates the handle 201 and shaft 203 clockwise (arrow R13), the rotating arm 206 and slide member 212 rotate clockwise as one (arrow R14). As a result, as shown in FIG. 36B, the second connecting pin 210 comes into contact with the counterclockwise end of the elongated hole 224 (the second end 252 shown in FIGS. 32D and 32E), and the second connecting pin 210 contacts the rotating arm 206 and the second The connecting pin 210 is engaged and the interlocking state is established. Further, when the handle 201 and the shaft 203 are rotated, the lock ring 216 having the second connecting pin 210 also rotates clockwise with a delay (arrow R14), and finally transitions to the state shown in FIG. 36C.

In the state shown in FIG. 36C, the slide member 212 and the lock ring 216 have moved to the most clockwise rotated position, and the locked state by the lid hook 214 is released, and the locked state by the lock ring 216 is also released.

In the above operation, the valve drive lever 82 also rotates in conjunction with the rotation of the rotary arm 206. Specifically, since the rotating arm 206 having the elongated hole 96 and the first connecting pin 208 are engaged with each other, as the first connecting pin 208 of the rotating arm 206 arranged in the elongated hole 96 rotates, the elongated The valve drive lever 82 that forms the hole 96 also rotates clockwise (arrow R15).

As shown in FIG. 36B, when the rotating arm 206 is rotated by a predetermined angle, the second end 212B of the slide member 212 is not engaged with the lid hook 214. The second connecting pin 210 inserted into the elongated hole 224 is not engaged until it reaches the counterclockwise end (second end 252) of the elongated hole 224, and does not rotate in conjunction with the rotating arm 206. Therefore, the lock ring 216 is also not operating. On the other hand, in conjunction with the rotation of the first connecting pin 208 inserted into the elongated hole 96, the valve drive lever 82 rotates clockwise by approximately the same angle (arrow R15). In the state shown in FIG. 36B, the push-down portion 94 of the valve drive lever 82 has started contacting the valve holding member 42, and the pressure reducing valve 26 moves toward the open position, bringing the cooking space S1 to atmospheric pressure. It's starting to open up.

Only after the state shown in FIG. 36C is reached, the locked state of the lid 10 by the lid hook 214 and the lock ring 216 is released.

According to the above operation, by interlocking the operation of the valve drive unit 40 with the operation of the lid lock drive unit 200, the opening of the pressure reducing valve 26 by the valve drive unit 40 is matched to the unlocking operation of the lid 10 by the lid lock drive unit 200. Actions can be linked. As a result, even if the valve drive lever 82 cannot be driven due to a power outage or the like, the user can manually operate the pressure reducing valve 26 to open the cooking space S1 to atmospheric pressure. Therefore, the lid 10 can be opened safely and quickly, and the convenience of using the cooking device 2 can be improved.

Further, after the valve drive lever 82 moves the pressure reducing valve 26 to the open position, the lid hook 214 and the lock ring 216 are unlocked. Thereby, the locked state of the lid 10 can be released after the cooking space S1 is opened to atmospheric pressure, and when the pot 4 is in a pressurized state, it is possible to prevent the food cooked in the pot 4 from scattering. If the pot 4 is in a reduced pressure state, the lid 10 can be opened first.

Even if the user rotates the handle 201 counterclockwise to lock the lid 10 from the state shown in FIG. 36C, it is designed not to return to the state shown in FIG. 36A. The specific design and operation will be explained using FIGS. 37A to 37C.

FIG. 37A shows the same situation as shown in FIG. 36C. The pressure reducing valve 26 is in the open position, the lid hook 214 is in the unlocked state, and the lock ring 216 is also in the unlocked state. From this state, when the user rotates the handle 201 to rotate the shaft member 203 counterclockwise (arrow R16), the rotating arm 206 and slide member 212 rotate counterclockwise (arrow R17), and as shown in FIG. 37B. Transition to the state shown. In the state shown in FIG. 37B, the second connecting pin 210 engages with the first end 250 (FIGS. 32D and 32E) of the elongated hole 224, so the second connecting pin 210 and the lock ring 216 are also integrated. It starts to rotate clockwise (arrow R17). As a result, the rotating arm 206, the slide member 212, and the lock ring 216 rotate integrally, and transition to the state shown in FIG. 37C.

As shown in FIG. 37C, the lid lock drive unit 200, such as the rotating arm 206, is rotating most counterclockwise, whereas the valve drive lever 82 is not rotating counterclockwise, and as shown in FIG. 37A. remains the same.

In the state shown in FIG. 37A, the first connecting pin 208 disposed in the elongated hole 96 is disposed at the most clockwise rotated position in the elongated hole 96, so the first connecting pin 208 rotates counterclockwise. However, the valve drive lever 82 having the elongated hole 96 does not rotate in conjunction.

Due to the engagement relationship between the elongated hole 96 and the first connecting pin 208, when the lid lock driving section 200 shifts the lid 10 from the unlocked state (FIG. 37A) to the locked state (FIG. 37C), the lid lock driving section 200 The interlock between the section 200 and the valve drive section 40 is released, and the pressure reducing valve 26 remains in the open position and is fixed in position.

According to the above operation, in order to seal and pressurize the cooking space S1, it is necessary for the control unit 11 to drive the valve drive lever 82, and the pressure reducing valve 26 cannot be closed only by manual operation by the user. cannot be moved into position. Thereby, it is possible to prevent a dangerous situation due to a user's manual operation and improve safety.

Here, the operations explained in FIGS. 34A to 37C will be explained by organizing them into tables in FIGS. 38 to 41.

38 to 41 are tables showing the operations of each member when the handle 201 is operated manually or when the valve drive lever 82 and the pressure reducing valve 26 are operated automatically by the motor 102. be.

FIG. 38 shows the operation when operating the handle 201 to shift from the open state (unlocked state) to the closed state (locked state), and FIG. The operation when transitioning to the closed state is shown. 40 shows the operation when operating the handle 201 to shift from the closed state (locked state) to the open state (unlocked state), and FIG. 41 shows the operation of moving the pressure reducing valve 26 from the closed state by automatic operation of the motor 102. The operation when transitioning to the open state is shown.

38 to 41, "handle movement angle" (FIGS. 38, 40) and "valve drive movement angle" (FIGS. 39, 41) are the amount of movement of the handle 201 and the amount of movement of the valve drive lever 82 ( Unit: degrees). “Handle” represents the operation of the handle 201, “lock ring” represents the operation of the lock ring 216, and “valve drive lever” represents the operation of the valve drive lever 82.

<Open ⇒ Close (manual handle)>
As shown in FIG. 38, when shifting from the open state to the closed state by manual operation of the handle 201, the handle 201 rotates from 0° to A° and then from A° to C°. The angles of A and C may be set as appropriate as long as A<C. A is, for example, about 10 degrees, and C is, for example, about 30 degrees.

As shown in FIG. 38, when the handle 201 rotates from 0° to A°, neither the lock ring 216 nor the valve drive lever 82 moves, and the pressure reducing valve 26 also remains open. This operation corresponds to the operation of transitioning from the state shown in FIG. 37A to the state shown in FIG. 37B.

As shown in FIG. 37A, the second connecting pin 210 inserted into the elongated hole 224 is in contact with the counterclockwise second end 252 (FIGS. 35D and 35E) of the elongated hole 224, so that the rotating arm Even if 206 rotates counterclockwise, the second connecting pin 210 does not move in conjunction. That is, the lock ring 216 is not interlocked with the operation of the handle 201. The first connecting pin 208 inserted into the long hole 96 is in contact with the clockwise first end 240 (FIGS. 25A and 25C) of the long hole 96, so the first connecting pin 208 is rotated counterclockwise. Even when rotated, the valve drive lever 82 does not operate in conjunction. That is, the valve drive lever 82 is not linked to the operation of the handle 201.

As shown in FIG. 38, when the handle 201 rotates from A° to C° (locked position), the lock ring 216 rotates (CA)° and moves to the locked position, and the valve drive lever 82 moves. The pressure reducing valve 26 remains open. This operation corresponds to the operation of transitioning from the state shown in FIG. 37B to the state shown in FIG. 37C.

In the state shown in FIG. 37B, the second connection pin 210 engages with the clockwise first end 250 of the elongated hole 224, so as the rotating arm 206 rotates counterclockwise, the second connection pin 210 A lock ring 216 connected to the pin 210 moves in the same direction. On the other hand, the first connecting pin 208 inserted into the elongated hole 96 is still at an intermediate position between the first end 240 and the second end 242 of the elongated hole 96 and is not engaged with the valve drive lever 82. The valve drive lever 82 does not operate in conjunction.

The positional relationship between the elongated hole 96 and the first connecting pin 208 is such that the first connecting pin 208 does not engage with the second end 242 of the elongated hole 96 until the state shown in FIG. 37A shifts to the state shown in FIG. 37C. It is designed to. Thus, when rotating the handle 201 counterclockwise, the valve drive lever 82 is not linked to the operation of the handle 201, that is, the lid lock drive unit 200 and the valve drive unit 40 are disengaged. can be made.

According to the above operation, the lid hook 214 and the lock ring 216 can be shifted to the locked state by operating the handle 201 regardless of whether or not the cooking space S is pressurized. Thereby, the lid 10 and the main body 8 can be locked even in a non-pressurized state, and safety can be improved.

<Open ⇒ Close (motor automatic)>
As shown in FIG. 39, when the pressure reducing valve 26 is shifted from the open state to the closed state by automatic operation of the motor 102, the valve drive lever 82 rotates from 0° to A° and then from A° to C°. do.

When the valve drive lever 82 rotates from 0° to A°, the handle 201 moves in conjunction with it from 0° to A°, and the lock ring 216 does not move in conjunction with it. Note that even if the valve drive lever 82 is rotated by A°, the pressure reducing valve 26 does not become closed, but remains open. This operation corresponds to the operation of transitioning from the state shown in FIG. 34A to the state shown in FIG. 34B.

As shown in FIG. 34A, the first connecting pin 208 inserted into the elongated hole 96 is engaged with the clockwise first end 240 (FIGS. 25A and 25B) of the elongated hole 96, so that the valve is actuated. When the lever 82 begins to rotate counterclockwise (arrow R9), the first connecting pin 208 moves in the same direction (arrow R10). On the other hand, since the second connecting pin 210 inserted into the elongated hole 224 is engaged with the counterclockwise second end 252 (FIGS. 32D and 32E) of the elongated hole 224, the rotating arm 206 is rotated counterclockwise. Even if the second connecting pin 210 rotates in the opposite direction, the second connecting pin 210 does not move in conjunction with the second connecting pin 210. Therefore, the lock ring 216 is not interlocked with the operation of the valve drive lever 82.

As shown in FIG. 39, when the valve drive lever 82 rotates from A° to C°, the pressure reducing valve 26 shifts from the closed state to the open state. Further, the handle 201 also moves in conjunction with it from A° to C°, and the lock ring 216 also moves in conjunction with it from 0° to (CA)°. As a result, both the handle 201 and the lock ring 216 move to the lock position. This operation corresponds to the operation of transitioning from the state shown in FIG. 34B to the state shown in FIG. 34C.

In the state shown in FIG. 34B, the second connecting pin 210 inserted into the elongated hole 224 engages with the clockwise first end 250 of the elongated hole 224. As the rotating arm 206 rotates counterclockwise, the lock ring 216 connected to the second connecting pin 210 rotates in the same direction in conjunction with the rotation, and transitions to the state shown in FIG. 34C.

According to the above operation, the lock ring 216 can be automatically moved to the lock position when executing the pressure cooking cooking course. Thereby, it is possible to prevent the pressure reducing valve 26 from being closed when the lock ring 216 is not moved to the locked position (including a half-locked state). The pressure reducing valve 26 can be closed and the lid 10 can be locked at the same time, improving safety.

<Close ⇒ Open (manual handle)>
As shown in FIG. 40, when shifting from the closed state to the open state by manual operation of the handle 201, the handle 201 rotates from C° to B°, and then from B° to 0°. The angles of B and C may be set as appropriate as long as B<C. B is approximately 20°, for example. In this embodiment, the relationship is B>A.

When the handle 201 rotates from C° to B°, the valve drive lever 82 moves in conjunction with it from C° to B°. Thereby, the pressure reducing valve 26 shifts from the closed state to the open state, and the cooking space S is opened to atmospheric pressure. Further, the lock ring 216 is not interlocked and maintains the locked state. This operation corresponds to the transition operation from the state shown in FIG. 36A to the state shown in FIG. 36B.

In the state shown in FIG. 36A, the first connecting pin 208 inserted into the elongated hole 96 is engaged with the clockwise first end 240 of the elongated hole 96 (FIGS. 25A and 25B). Therefore, when the rotating arm 206 and the first connecting pin 208 rotate clockwise by operating the handle 201, the valve drive lever 82 engaged with the first connecting pin 208 also rotates in the same direction. On the other hand, the second connection pin 210 inserted into the elongated hole 224 is engaged with the clockwise first end 250 of the elongated hole 224 . Therefore, even if the rotating arm 206 rotates clockwise, the lock ring 216 connected to the second connecting pin 210 does not operate in conjunction.

As shown in FIG. 40, when the handle 201 rotates from B° to 0°, the valve drive lever 82 is interlocked and moved from B° to 0°, and the lock ring 216 is also interlocked and moved from B° to 0°. Move up to. As a result, both the handle 201 and the lock ring 216 move to the lock position. Note that the pressure reducing valve 26 remains open. This operation corresponds to the operation of transitioning from the state shown in FIG. 36B to the state shown in FIG. 36C.

In the state shown in FIG. 36B, the second connecting pin 210 inserted into the elongated hole 224 engages with the counterclockwise second end 252 of the elongated hole 224, so that the clockwise rotation of the rotary arm 206 Accordingly, the lock ring 216 connected to the second connection pin 210 also rotates in the same direction in conjunction with it, and transitions to the state shown in FIG. 36C.

According to the above operation, even when the motor 102 fails or a power outage occurs, it is possible to reduce the pressure in the cooking space S from a pressurized state to atmospheric pressure, and the contents can be taken out quickly.

<Close ⇒ Open (motor automatic)>
As shown in FIG. 41, when the pressure reducing valve 26 is shifted from the closed state to the open state by automatic operation of the motor 102, the valve drive lever 82 rotates from C° to B° and then from B° to 0°. do.

When the valve drive lever 82 rotates from C° to B°, the handle 201 and the lock ring 216 are not interlocked, and the lock ring 216 maintains the locked state. When the valve drive lever 82 moves to B°, the pressure reducing valve 26 shifts from the closed state to the open state, and the cooking space S is opened to atmospheric pressure. Thereafter, even when the valve drive lever 82 rotates from B° to 0°, the handle 201 and the lock ring 216 do not interlock, and the lock ring 216 maintains the locked state. This operation corresponds to the transition operation from the state shown in FIG. 35A to the state shown in FIG. 35B.

In the state shown in FIG. 35A, the first connecting pin 208 inserted into the elongated hole 96 is engaged with the clockwise first end 240 of the elongated hole 96. Therefore, even if the valve drive lever 82 rotates clockwise, the first connecting pin 208 does not operate in conjunction with it, and the state shifts to the state shown in FIG. 35B.

The positional relationship between the elongated hole 96 and the first connecting pin 208 is such that the first connecting pin 208 does not engage with the second end 242 of the elongated hole 96 until the state shown in FIG. 35A shifts to the state shown in FIG. 35B. It is designed to. As a result, when the valve drive lever 82 is rotated clockwise (valve opening direction) by automatic operation of the motor 102, the rotation arm 206 connected to the first connection pin 208 is not linked to the operation of the valve drive lever 82. That is, it is possible to create a state in which the valve drive section 40 and the lid lock drive section 200 are disengaged.

According to the above operation, the pressure reducing valve 26 can be moved to the open state without releasing the locked state of the lock ring 216. Thereby, the lid 10 and the main body part 8 can be maintained in a locked state, and safety can be improved.

(Action/Effect 1)
As described above, the heating cooker 2 of this embodiment includes the pot 4 having the cooking space S1, the heater 9 (heating section) that heats the pot 4, and the inner lid 14 for sealing the cooking space S1. a pressure reducing valve 26 provided in the lid 10, a pressure reducing valve 26 provided in the inner lid 14 and movable between a sealing position for sealing the cooking space S1 and an open position for opening to atmospheric pressure; The valve drive unit 40 includes a motor 102 (drive source) and a valve drive lever 82 (rotation operation unit) that rotates by the driving force of the motor 102. Be prepared.

According to such a heating cooker 2, since the valve driving section 40 rotates, the internal space of the lid 10 can be effectively used to arrange the valve driving section 40, and the product size of the heating cooking device 2 can be reduced. Contributes to downsizing. In particular, when the lid 10 has an approximately circular outer shape in plan view, by rotating the valve drive unit 40 rather than linearly, the inside of the lid 10 can be moved without increasing the horizontal dimension of the lid 10 in one direction. The valve drive unit 40 can be provided by making effective use of space. Thereby, the horizontal size of the lid 10 can be reduced, leading to a reduction in the size of the cooking device 2.

In addition, in the cooking device 2 of this embodiment, the rotation axis Ax of the valve drive lever 82 (rotation operation section) extends along the thickness direction of the lid 10. According to such a heating cooker 2, the internal space of the lid 10 can be effectively utilized to arrange the valve driving section, and in particular, the height of the lid 10 can be reduced.

In addition, in the heating cooker 2 of this embodiment, the valve drive lever 82 (rotating operation part) has a push-down part 94 for pushing down the pressure reducing valve 26 from the sealed position to the open position. 94 moves in an arc between a first position (FIG. 24B) in which the pressure reducing valve 26 is pushed down and a second position (FIG. 24A) that is different from the first position. According to such a heating cooker 2, by moving the push-down portion 94 in an arc shape, it becomes easier to ensure a longer moving distance than when moving in a straight line. Thereby, the position of the push-down portion 94 can be adjusted more precisely while effectively utilizing the internal space of the lid 10, and the accuracy of pressure adjustment can be improved.

In addition, in the cooking device 2 of this embodiment, the push-down portion 94 has an inclined surface 98 whose height changes along the arc-shaped moving direction. According to such a heating cooker 2, the push-down portion 94 can be configured with a simple structure.

In addition, in the heating cooker 2 of the present embodiment, the valve drive lever 82 (rotation operation part) has a circular arc arm 86 (first arm) extending in a circular arc shape, and a connection connecting between the circular arc arm 86 and the rotation axis Ax. arm 88 (second arm). According to such a heating cooker 2, the valve driving section 40 can be configured with a simple structure.

In addition, in the heating cooker 2 of this embodiment, the valve drive lever 82 (rotating operation part) has a member arrangement space 99 in an area surrounded by the arcuate arm 86 (first arm) and the connecting arm 88 (second arm). have According to such a heating cooker 2, other members can be arranged in the member arrangement space 99, and the space can be used effectively.

In addition, in the heating cooker 2 of this embodiment, the member arrangement space 99 includes a gear section 104 (first gear) for transmitting the driving force of the motor 102 (drive source) to the valve drive lever 82 (rotary operation section). ), and a gear portion 92 (second gear) that meshes with the gear portion 104 is formed on the inner peripheral surface of the arcuate arm 86 (first arm). According to such a heating cooker 2, the gear parts 92 and 104 can be arranged by utilizing the member arrangement space 99, and the valve drive lever 82 can be operated with a simple configuration.

In addition, in the heating cooker 2 of this embodiment, the gear portion 104 (first gear) and the gear portion 92 (second gear) are each composed of spur gears, and the pressure reducing valve 26 is connected to the shaft of the spur gear. It moves up and down along direction C. According to such a heating cooker 2, even when the pressure reducing valve 26 moves up and down to press the valve drive lever 82 (rotating operation part), a pressing force is applied in the axial direction C of the spur gear, so that the gear part No driving force is transmitted between 92 and 104. This makes it possible to realize a configuration in which no unnecessary force is applied to the gear section 104 or the motor 102.

Moreover, the heating cooker 2 of this embodiment further includes a support plate 84 that rotatably supports the valve drive lever 82 (rotation operation part). According to such a heating cooker 2, the operation of the valve drive lever 82 becomes more stable.

Further, in the heating cooker 2 of the present embodiment, the valve drive lever 82 (rotating operation part) has an arc arm 86 (first arm) extending in an arc shape, and the support plate 84 has an arc arm 86 (first arm) extending in an arc shape. It has an arc-shaped groove portion 118 that guides the arc-shaped movement of the arm. According to such a heating cooker 2, the operation of the valve drive lever 82 can be stabilized.

In addition, in the heating cooker 2 of the present embodiment, the support plate 84 includes a wall portion 110 (first restriction) that blocks movement of the valve drive lever 82 (rotation operation portion) in the first direction (counterclockwise in plan view). wall) and a wall portion 112 (second restriction wall) that blocks movement of the valve drive lever 82 in the second direction (clockwise in plan view). It is rotatably provided in the area between 112 and 112. According to such a heating cooker 2, the movement range of the valve drive lever 82 can be easily defined. Moreover, even if an abnormality occurs in the operation of the valve drive lever 82, the movement can be restricted by contact with the walls 110, 112, so that the load on the gear parts 92, 104, etc. can be alleviated.

In addition, in the heating cooker 2 of this embodiment, the valve drive lever 82 (rotating operation part) provides a member arrangement space 99 in the area surrounded by the arcuate arm 86 (first arm) and the connecting arm 88 (second arm). The support plate 84 has a screw receiving part 160 (fixing part) for fixing the support plate 84 to the lid 10 (block 172), and the screw receiving part 160 is arranged in the member arrangement space 99. According to such a heating cooker 2, the support plate 84 can be fixed to the lid 10 at a position close to the center of the support plate 84, and the strength of the support plate 84 can be improved.

In addition, the cooking device 2 of this embodiment further includes a cover member 78 that covers the valve drive lever 82 (rotating portion), and the valve drive lever 82 has a rib 89 at a location where it contacts the cover member 78. According to such a heating cooker 2, when the valve drive lever 82 slides, the friction with the cover member 78 can be reduced, and the operation of the valve drive lever 82 can be stabilized.

(Action/Effect 2)
As described above, the heating cooker 2 of this embodiment includes the pot 4 having the cooking space S1, the heater 9 (heating section) that heats the pot 4, and the inner lid 14 for sealing the cooking space S1. a pressure reducing valve 26 provided in the lid 10, a pressure reducing valve 26 provided in the inner lid 14 and movable between a sealing position for sealing the cooking space S1 and an open position for opening to atmospheric pressure; a lock ring 216 (provided on the lid 10 that is movable between a lock position that restricts the opening operation of the lid 10 and an unlock position that enables the opening operation of the lid 10); a lid locking member), and a lid lock driving unit 200 that is provided on the lid 10 and has a handle 201 (operating member) for manually operating the lock ring 216, and the valve driving unit 40 has a long The lid lock drive unit 200 has a hole 96 (first engaging part), and the lid lock driving part 200 has a first connecting pin 208 (second engaging part) that engages with the elongated hole 96 .

According to such a heating cooker 2, by engaging the valve drive section 40 and the lid lock drive section 200 with each other, it is possible to interlock their respective operations. This allows the pressure reducing valve 26 and lock ring 216 to be automatically moved to appropriate positions depending on the situation, making it possible to omit manual operations by the user, and improving convenience when using the heating cooker 2. can be improved.

Further, in the cooking device 2 of this embodiment, the valve drive unit 40 and the lid lock drive unit 200 are interlocked by the engagement relationship between the elongated hole 96 and the first connection pin 208. This makes it possible to switch between the interlocking state and the non-interlocking state depending on the operating direction and position of the drive units 40 and 200.

Note that this is not limited to the case where the valve drive section 40 has the long hole 96 and the lid lock drive section 200 has the pin 208, but the case where the valve drive section 40 has a pin and the lid lock drive section 200 has a long hole. It may be. That is, the first engaging part that the valve driving part 40 has may be one of a long hole or a pin, and the second engaging part that the lid lock driving part 200 has may be the other one.

Further, in the cooking device 2 of the present embodiment, the lid lock drive unit 200 is moved in the horizontal direction B inside the lid 10 so as to connect between the handle 201 (operating member) and the lock ring 216 (lid locking member). It has an extending rotating arm 206 (arm member), the first connecting pin 208 (second engaging part) is a pin provided on the rotating arm 206, and the long hole 96 (first engaging part) is a pin provided on the rotating arm 206. , which is a long hole into which the first connecting pin 208 is inserted. According to such a heating cooker 2, the pin 208 and the elongated hole 96 can be provided while effectively utilizing the interior space of the lid 10, and the two drive parts 40 and 200 can be interlocked.

Further, in the cooking device 2 of this embodiment, the valve drive section 40 and the lid lock drive section 200 each rotate. According to such a heating cooker 2, the operations of the valve drive unit 40 and the lid lock drive unit 200 can be easily linked, and the space in the horizontal direction B in the lid 10 can be effectively utilized, and the product size can be reduced. can be converted into

Moreover, in the cooking device 2 of this embodiment, the rotation axis Ax of the valve drive unit 40 and the rotation axis Ax of the lock ring 216 (lid locking member) are coaxial. According to such a heating cooker 2, it is possible to simplify the configuration and downsize the product while suppressing axis misalignment.

In addition, in the heating cooker 2 of this embodiment, the lid 10 is provided with a handle 201 (operating member) that is rotatably operated, and a shaft member 203 that extends in the thickness direction of the lid 10 as a rotation axis Ax of the handle 201. A through hole 100 through which the shaft member 203 is inserted is formed in the rotation center portion 90 of the valve drive unit 40 . According to such a heating cooker 2, a coaxial structure can be created with a simple configuration.

In addition, in the heating cooker 2 of this embodiment, the handle 201 (operating member) is rotated around the rotation axis Ax extending along the thickness direction of the lid 10. According to such heating cooker 2, the user can easily operate it.

Further, the heating cooker 2 of this embodiment is provided in the inner lid 14, and is located in the first position when the pressure in the cooking space S1 is equal to or higher than a predetermined pressure, and is located in the second position when the pressure in the cooking space S1 is lower than the predetermined pressure. The lock ring regulating valve 28 regulates the movement of the lock ring 216 (lid locking member) in the first position (FIG. 11C) and in the second position (FIG. 11C). (FIGS. 11A and 11B), the lock ring 216 is selectively engaged so as not to restrict the movement of the lock ring 216. According to such a heating cooker 2, by providing the lock ring regulating valve 28, it is possible to prevent the lid 10 from being opened when the cooking space S1 is in a high pressure state, thereby improving safety.

(Action/Effect 3)
As described above, the heating cooker 2 of this embodiment includes the pot 4 having the cooking space S1, the heater 9 (heating section) that heats the pot 4, and the inner lid 14 for sealing the cooking space S1. a pressure reducing valve 26 provided in the lid 10, a pressure reducing valve 26 provided in the inner lid 14 and movable between a sealing position for sealing the cooking space S1 and an open position for opening to atmospheric pressure; a lock ring 216 (provided on the lid 10 that is movable between a lock position that restricts the opening operation of the lid 10 and an unlock position that enables the opening operation of the lid 10); a lid locking member), and a lid lock driving unit 200 that is provided on the lid 10 and has a handle 201 (operating member) for operating the lock ring 216 manually by a user. , the operation of the lid lock drive unit 200 is interlocked.

According to such a heating cooker 2, by interlocking the operation of the lid lock drive section 200 with the operation of the valve drive section 40, the operation of locking/unlocking the lid 10 is performed according to the opening/closing operation of the pressure reducing valve 26. This can be done in conjunction with the user's manual operation. Thereby, the convenience when using the heating cooker 2 can be improved.

In addition, in the cooking device 2 of the present embodiment, when the valve drive unit 40 operates in the direction of moving the pressure reducing valve 26 to the sealing position, the lid lock drive unit 200 operates in conjunction with the valve drive unit 40. , operates in a direction to move the lock ring 216 (lid locking member) to the lock position. According to such a heating cooker 2, when the pressure cooking menu is selected, even if the user forgets to lock the lid 10 or the lock is insufficient (for example, in a half-locked state), the lid 10 can be automatically shifted to the locked state, allowing pressure cooking to begin.

The heating cooker 2 of the present embodiment further includes an operation display section 6 (cooking menu selection section) for selecting a cooking menu, and a control section 11. In response to selection of the pressure cooking menu, the valve drive unit 40 is operated in a direction to move the pressure reducing valve 26 to the sealing position. According to such a heating cooker 2, when executing the pressure cooking menu, the cooking space S1 of the pot 4 can be sealed to a state where pressure cooking can be started.

Moreover, the cooking device 2 of this embodiment further includes a lid lock detection means 228 that detects whether the lock ring 216 (lid lock member) is in the lock position. According to such a heating cooker 2, by confirming that the lock ring 216 is in the lock position, it is possible to confirm that not only the lock ring 216 is in the lock position but also that the pressure reducing valve 26 is in the sealing position. It can be confirmed.

Furthermore, in the cooking device 2 of this embodiment, when the valve drive unit 40 operates in the direction of moving the pressure reducing valve 26 to the open position, the interlocking between the valve drive unit 40 and the lid lock drive unit 200 is released. . According to such a heating cooker 2, when the pressure reducing valve 26 is moved to the open position to return the pot 4 to the atmospheric pressure state at the end of cooking, etc., the lid is locked without interlocking the lid lock drive unit 200. By not releasing the state, the user must manually operate the lid to unlock it. Thereby, safety can be improved.

Further, in the cooking device 2 of this embodiment, the valve drive unit 40 and the lid lock drive unit 200 are interlocked with each other due to the engagement relationship between the elongated hole 96 and the pin 208. According to such a heating cooker 2, by interlocking the elongated hole 96 and the pin 208 in an engagement relationship, the interlocking state and the non-interlocking state can be switched depending on the operating direction and position of the drive parts 40 and 200. becomes possible.

The cooking device 2 of the present embodiment further includes a control unit 11, and a valve drive unit 40 includes a motor 102 (drive source) controlled by the control unit 11, and a valve drive unit operated by the drive force of the motor 102. A lever 82 (operating part) is provided. According to such a heating cooker 2, the valve drive unit 40 can be automatically operated.

Further, in the cooking device 2 of this embodiment, the valve drive lever 82 (operating section) rotates. According to such a heating cooker 2, the internal space of the lid 10 can be effectively utilized to arrange the valve driving section 40, which contributes to miniaturization of the product size.

(Action/Effect 4)
As described above, the heating cooker 2 of this embodiment includes the pot 4 having the cooking space S1, the heater 9 (heating section) that heats the pot 4, and the inner lid 14 for sealing the cooking space S1. a pressure reducing valve 26 provided in the lid 10, a pressure reducing valve 26 provided in the inner lid 14 and movable between a sealing position for sealing the cooking space S1 and an open position for releasing the cooking space S1 to atmospheric pressure; a lock ring 216 (provided on the lid 10 that is movable between a lock position that restricts the opening operation of the lid 10 and an unlock position that enables the opening operation of the lid 10); a lid locking member) and a lid lock driving unit 200 that is provided on the lid 10 and has a handle 201 (operating member) for operating the lock ring 216 manually by a user. The operation of the valve drive unit 40 is interlocked with the above.

According to such a heating cooker 2, by interlocking the operation of the valve drive unit 40 with the operation of the lid lock drive unit 200, the opening/closing operation of the pressure reducing valve 26 is performed in accordance with the locking/unlocking operation of the lid 10. This can be done in conjunction with. For example, when unlocking the lid 10, it is possible to move the pressure reducing valve 26 to the open position and return the pressure in the pot 4 to atmospheric pressure. As a result, even when the valve drive unit 40 does not operate due to a power outage or the like, the pressure in the pot 4 can be set to atmospheric pressure and the lid 10 can be opened, improving convenience when using the cooking device 2. be able to.

In addition, in the heating cooker 2 of this embodiment, when the lid lock drive section 200 operates in the direction of moving the lock ring 216 (lid lock member) to the unlocked position, the valve drive section 40 operates as a lid lock drive section. 200 to move the pressure reducing valve 26 to the open position. According to such a heating cooker 2, even if the valve drive unit 40 does not operate due to a power outage or the like, the pressure in the pot 4 can be brought to atmospheric pressure and the lid 10 can be opened.

In addition, in the heating cooker 2 of this embodiment, when the operation of the valve drive unit 40 is linked to the operation of the lid lock drive unit 200, the pressure reducing valve 26 moves to the open position, and then the lock ring 216 (lid lock member) moves to the unlocked position. According to such a heating cooker 2, safety and convenience can be improved by allowing the lid 10 to be opened after releasing the pressure in the cooking space S1.

Moreover, the heating cooker 2 of this embodiment further includes a convex portion 229 that selectively engages with the lid lock drive unit 200 so as to produce a click feeling when the handle 201 (operation member) is operated. According to such heating cooker 2, erroneous operations by the user can be suppressed.

In addition, in the heating cooker 2 of this embodiment, when the lid lock drive unit 200 operates in the direction of moving the lock ring 216 (lid lock member) to the lock position, the lid lock drive unit 200 and the valve drive unit 40 The link will be canceled. According to the heating cooker 2, when the user manually closes the lid 10, the pressure reducing valve 26 is not moved to the sealing position, so that the cooking space S1 of the pot 4 is not heated by the user's manual operation. It is not possible to create a pressure-tight airtight state. Thereby, safety can be improved.

Further, in the cooking device 2 of this embodiment, the valve drive unit 40 and the lid lock drive unit 200 are interlocked with each other due to the engagement relationship between the elongated hole 96 and the pin 208. According to such a heating cooker 2, by interlocking the elongated hole 96 and the pin 208 in an engagement relationship, the interlocking state and the non-interlocking state can be switched depending on the operating direction and position of the drive parts 40 and 200. becomes possible.

The cooking device 2 of the present embodiment further includes a control unit 11, and a valve drive unit 40 includes a motor 102 (drive source) controlled by the control unit 11, and a valve drive unit operated by the drive force of the motor 102. A lever 82 (operating part) is provided. According to such a heating cooker 2, the valve drive unit 40 can be automatically operated.

Moreover, in the cooking device 2 of this embodiment, the valve drive lever 82 rotates. According to such a heating cooker 2, the internal space of the lid 10 can be effectively utilized to arrange the valve driving section 40, which contributes to miniaturization of the product size.

Although the invention of the present disclosure has been described above with reference to the embodiments described above, the invention of the present disclosure is not limited to the embodiments described above. For example, in the above embodiment, a case has been described in which the valve drive section 40 and the lid lock drive section 200 are interlocked with each other by the engagement relationship between the elongated hole 96 and the first connection pin 208, but the present invention is not limited to such a case. For example, the engagement relationship between the elongated hole 96 and the first connecting pin 208 may be eliminated so that the valve drive unit 40 and the lid lock drive unit 200 operate independently without interlocking each other. FIG. 42 shows a flowchart regarding the process when executing the pressure cooking menu when this configuration is adopted.

In the flowchart shown in FIG. 42, steps S21 and S22 are executed instead of steps S4 to S8 in the flowchart shown in FIG.

Specifically, in response to notifying that cooking is OK in step S2, the control unit 11 determines whether or not a lid lock is detected (S21). The specific determination method is the same as step S4 in FIG. 33, and the explanation will be omitted. If the lid lock is not detected, the control unit 11 executes the process of step S21 again. As a result, the next step S3 (accepting the selection of the pressure cooking menu) is not executed unless the locked state of the lid 10 can be confirmed. As described above, since the valve drive unit 40 and the lid lock drive unit 200 are not linked, the user needs to manually operate the handle 201 in order to lock the lid 10. For this reason, the specifications are such that pressure cooking cannot be performed unless the lid lock is confirmed in step S21.

When the lid lock is detected (YES in S21), the control unit 11 accepts selection of a pressure cooking menu (S3). The control unit 11 further drives the valve drive unit 40 to move the pressure reducing valve 26 to the sealing position (S22). Thereafter, steps S9 to S11 are executed as processing similar to the flowchart of FIG.

In step S22, the pressure reducing valve 26 is moved to the sealing position by the drive of the valve drive unit 40, but since the lid lock drive unit 200 is not interlocked, the states of the lid hook 214 and the lock ring 216 do not change.

Although this disclosure has been fully described with reference to preferred embodiments and with reference to the accompanying drawings, various variations and modifications will become apparent to those skilled in the art. It is to be understood that such variations and modifications are included within the scope of the invention as defined by the appended claims. Furthermore, changes in the combination and order of elements in each embodiment can be realized without departing from the scope and spirit of the present disclosure.

By appropriately combining arbitrary modifications among the various modifications of the embodiment, the effects of each modification can be achieved.

The present disclosure can be applied to any heating cooker that heats food or other foods.

2 Cooker 4 Pot 9 Heater (heating part)
10 Lid 12 Outer Lid 14 Inner Lid 26 Pressure Reducing Valve 40 Valve Drive Unit 82 Valve Drive Lever (Operation Unit, Rotation Operation Unit)
96 Long hole (first engaging part)
102 Motor (drive source)
200 Lid lock drive unit 201 Handle (operation member)
208 First connection pin (second engagement part)
214 Lid hook (first lid locking member)
216 Lock ring (second lid lock member)
S1 cooking space

Claims (13)

A pot having a cooking space;
a heating section that heats the pot;
a lid having an inner lid for sealing the cooking space;
a pressure reducing valve provided on the inner lid and movable between a sealing position for sealing the cooking space and an open position for releasing the cooking space to atmospheric pressure;
a valve drive unit provided on the lid and variably operating the position of the pressure reducing valve;
The heating cooker includes the valve driving section including a driving source and a rotating operation section that rotates by the driving force of the driving source. The heating cooker according to claim 1, wherein the rotation axis of the rotation operation section extends along the thickness direction of the lid. The rotary operation part has a push-down part for pushing down the pressure reducing valve from the sealing position to the open position,
The cooking device according to claim 1, wherein the push-down portion moves in an arc between a first position for pushing down the pressure reducing valve and a second position different from the first position. The cooking device according to claim 3, wherein the push-down portion has an inclined surface whose height changes along an arcuate moving direction. The heating cooker according to claim 1, wherein the rotational operation section includes a first arm extending in an arc shape and a second arm connecting the first arm and a rotating shaft. The heating cooking device according to claim 5, wherein the rotational operation section has a member arrangement space in which another member can be arranged in a region surrounded by the first arm and the second arm. The member arrangement space is provided with a first gear for transmitting the driving force of the drive source to the rotational operation part,
The cooking device according to claim 6, wherein a second gear that meshes with the first gear is formed on the inner peripheral surface of the first arm. The first gear and the second gear each include a spur gear,
The cooking device according to claim 7, wherein the pressure reducing valve moves up and down along the axial direction of the spur gear. The heating cooker according to claim 1, further comprising a support plate that rotatably supports the rotating operation section. The rotational operation section has a first arm extending in an arc shape,
The cooking device according to claim 9, wherein the support plate has an arcuate groove portion that guides the arcuate movement of the first arm. The support plate includes a first restriction wall that blocks movement of the rotational movement part in a first direction, and a second restriction wall that blocks movement of the rotational movement part in a second direction,
The cooking device according to claim 9, wherein the rotational operation section is rotatably provided in a region between the first regulation wall and the second regulation wall. The rotation operation unit has a member arrangement space in which other members can be arranged in a region surrounded by the first arm and the second arm,
The cooking device according to claim 9, wherein the support plate has a fixing part for fixing the support plate to the lid, and the fixing part is arranged in the member arrangement space. further comprising a cover member that covers the rotational operation section,
The heating cooker according to any one of claims 1 to 12, wherein the rotating portion has a rib at a location where it contacts the cover member.

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