JP2022115504A - Heat cooker - Google Patents

Abstract

To provide a heat cooker which can further efficiently agitate the food materials in an inner pot.SOLUTION: A heat cooker (1) includes: an inner pot (14); a lid body for covering the inner pot (14); and an agitation device (20) attached to the inside of the lid body. The agitation device (20) includes: a rotational body (21) that rotates along a lower surface of the lid body; and a first agitation arm (22) which has a rotational support point on an edge side of the lid body away from the rotational center of the rotational body (21) and which is provided in a rotatable manner between an upper position extending along the lid body and a lower position standing oblique-downward with respect to the lower surface of the lid body. The first agitation arm (22) includes: a first blade part (30) shaped so as to receive a downward reaction force from a food material (34) by rotation; and a second blade part (31) shaped so as to apply a downward reaction force to the food material (34).SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to a heating cooker that heats food while stirring it.

2. Description of the Related Art Conventionally, there has been known a heating cooker that heats and cooks food (contents) housed inside an inner pot with, for example, a heater. A heating cooker includes a cooker body and a lid, the cooker body having an inner pot, and the lid having an inner lid and an outer lid. The inner pot is covered with the inner lid by closing the lid body to the cooker body.

For example, Patent Literature 1 discloses a heating cooker capable of heating ingredients in an inner pot while stirring the ingredients. A stirring device used for stirring has a rotating body and a stirring arm attached to the rotating body via a rotating shaft. During stirring, the stirring arm switches from being folded along the inner lid to hanging down toward the bottom of the inner pot.

JP 2013-223705 A

However, in the heating cooker of Patent Document 1, the stirring arm is lowered substantially vertically for stirring. Therefore, the same position within the inner pot at a certain distance from the center of rotation of the rotating body is stirred.

An object of one aspect of the present invention is to realize a heating cooker that can more efficiently stir ingredients in an inner pot.

In order to solve the above problems, a cooking device according to an aspect of the present invention includes an inner pot, a lid that covers the inner pot, and a stirring device that stirs the contents of the inner pot. The stirrer comprises a rotating body attached inside the lid and rotating along the lower surface of the lid, and the lid attached to the rotating body and separated from the center of rotation of the rotating body. and is rotatable between an upper position extending along the lid and a lower position standing obliquely downward with respect to the lower surface of the lid. a first blade portion having a shape that receives a downward reaction force from the contents housed in the inner pot when the stirring arm rotates; and the stirring arm. and a second wing portion having a shape that applies a downward force to the contents accommodated in the inner pot by rotating.

SUMMARY OF THE INVENTION An object of one aspect of the present invention is to provide a cooking device capable of efficiently stirring ingredients in an inner pot.

1 is a perspective view of the heating cooker of Embodiment 1, showing a state in which a lid is opened. FIG. FIG. 4 is a cross-sectional view showing the inner pot and the stirring device in the cooking device, showing a state where the stirring arm of the stirring device is in the upper position. FIG. 4 is a partially cross-sectional perspective view showing the inner pot and the stirring device in the cooking device, showing a state where the stirring arm of the stirring device is in the upper position. FIG. 4 is a cross-sectional view showing the inner pot and the stirring device in the cooking device, showing a state where the stirring arm of the stirring device is at the lower position; FIG. 4 is a partially cross-sectional perspective view showing the inner pot and the stirring device in the cooking device, showing a state where the stirring arm of the stirring device is in the lower position. It is the figure which looked at the said stirring arm from the front-end|tip part side. FIG. 11 is a partially cross-sectional perspective view showing the inner pot and the stirring device in the heating cooker of Embodiment 2, showing a state where the stirring arm of the stirring device is in the upper position. FIG. 10 is a partially cross-sectional perspective view showing the inner pot and the stirring device in the cooking device, showing a state in which the stirring arm of the stirring device is at an intermediate position between the upper position and the lower position. FIG. 4 is a partially cross-sectional perspective view showing the inner pot and the stirring device in the cooking device, showing a state where the stirring arm of the stirring device is in the lower position;

An embodiment of the present invention will be described below based on the drawings.

[Embodiment 1]
(Structure of heating cooker 1)
FIG. 1 is a perspective view of the heating cooker 1 of Embodiment 1, showing a state in which the lid portion 12 is opened. As shown in FIG. 1 , the heating cooker 1 includes a cooker body portion 11 and a lid portion 12 . The cooker body 11 and the lid 12 are connected by a rear rotation support 13 . As a result, the lid portion 12 rotates around the rotation support portion 13 and can be opened and closed with respect to the cooker main body portion 11 . The cooker main body 11 has an inner pot 14 , and the inner pot 14 is housed in a concave portion inside the cooker main body 11 so as to be able to be put in and taken out.

The lid portion 12 has an outer lid 15 and an inner lid (lid body) 16 . The outer lid 15 is a housing portion of the lid portion 12 and is mainly made of resin. The inner lid 16 is made of a metal material such as aluminum or stainless steel and has a disc shape. The inner lid 16 is attached to the inner surface of the outer lid 15 . The inner lid 16 can be attached to and detached from the outer lid 15 by, for example, fitting an outer peripheral portion thereof to the outer lid 15 .

On the inner pot 14 side of the inner lid 16, a stirring device 20 for stirring the ingredients (contents) contained in the inner pot 14 is attached. Details of the stirring device 20 will be described below.

(Configuration of stirring device 20)
FIG. 2 is a cross-sectional view showing the inner pot 14 and the stirring device 20 in the heating cooker 1, showing a state where the stirring arm 22 of the stirring device 20 is in the upper position. FIG. 3 is a partially cross-sectional perspective view showing the inner pot 14 and the stirring device 20 in the heating cooker 1, showing a state where the stirring arm 22 of the stirring device 20 is in the upper position. FIG. 4 is a cross-sectional view showing the inner pot 14 and the stirring device 20 in the heating cooker 1, showing a state where the stirring arm 22 of the stirring device 20 is in the lower position. FIG. 5 is a partially cross-sectional perspective view showing the inner pot 14 and the stirring device 20 in the heating cooker 1, showing a state where the stirring arm 22 of the stirring device 20 is in the lower position.

The stirring device 20 is made of heat-resistant resin, for example. The stirring device 20 has a rotating body 21 and a stirring arm 22, as shown in FIGS. The rotating body 21 is attached to the lower surface of the inner lid 16 (see FIG. 1) on the inner pot 14 side, and rotates along the lower surface of the inner lid 16 .

In this embodiment, the rotating body 21 is a rod-shaped member having a T-shaped cross section cut along the width direction. A connecting portion 24 is provided at one end of the rotating body 21 so as to protrude toward the inner lid 16 (see FIG. 1). The rotating body 21 and a drive shaft (not shown) of a drive motor (not shown) are connected via a connection portion 24 on the upper surface side (back side) of the inner lid 16 . Rotating body 21 is attached to extend on the lower surface of inner lid 16 by being connected to the drive shaft, and rotates along the lower surface of inner lid 16 around connecting portion 24 . As shown in FIG. 1, the drive shaft of the drive motor is arranged at the center of the inner lid 16 .

In this embodiment, the connecting portion 24 provided on the rotating body 21 side penetrates the inner lid 16 and is connected to the drive shaft on the upper surface side (back side) of the inner lid 16 . However, it is not limited to this configuration, and the connecting part connected to the drive shaft protrudes from the lower surface of the inner lid 16, and this part and the connecting portion provided on the rotating body 21 side are connected to the lower surface side of the inner lid 16. It is good also as a structure which connects.

The stirring arm 22 extends in one direction, and one end of the stirring arm 22 is attached to the outer peripheral side of the rotating body 21 at the other end via a shaft portion 25 . This shaft portion 25 is the fulcrum of rotation of the stirring arm 22 . In other words, the stirring arm 22 has a pivotal fulcrum on the edge side of the inner lid 16 away from the center of rotation of the rotating body 21 .

The agitating arm 22 is attached to the rotating body 21 at an upper position extending along the inner lid (lid body) 16 shown in FIGS. It is attached to the lower surface of the inner lid 16 so as to be rotatable between a lower position standing obliquely downward. The lower position is set so that the tip of the stirring arm 22 , in this embodiment, a first blade 30 provided at the tip, which will be described later, does not come into contact with the bottom of the inner pot 14 . Hereinafter, the other end portion of the stirring arm 22 on the side opposite to the shaft portion 25 side is referred to as the tip portion.

A stopper 26 for restricting rotation of the stirring arm 22 is provided in the vicinity of the shaft portion 25 of the stirring arm 22 . The agitation arm 22 is configured such that its rotation is stopped at the lower position by a stopper 26 and cannot be moved below the lower position.

In this embodiment, the stopper 26 is formed by bending the end portion of the stirring arm 22 closer to the edge (peripheral side) of the inner lid 16 than the shaft portion 25 of the stirring arm 22 obliquely downward. That is, as shown in FIGS. 4 and 5, when the stirring arm 22 reaches the lower position, the stopper 26 comes into contact with the rotating body 21 and further rotation is restricted.

Further, a locking mechanism or the like that holds the stirring arm 22 in the upper position by engaging the stirring arm 22 and the rotating body 21 or the stirring arm 22 and the inner lid 16 may be provided.

In this embodiment, the stirring arm 22 rotates to the lower position by its own weight. In this case, the rotating body 21 is stopped with the shaft portion 25 positioned on the front side of the heating cooker 1, and the stirring arm 22 is returned to the upper position by its own weight as the lid portion 12 is opened. good too.

The stirring arm 22 configured in this manner stirs the food material 34 in the inner pot 14 at a lower position obliquely arranged in the inner pot 14 . Since the stirring arms 22 are arranged diagonally in the inner pot 14, the lower portion of the food material 34 in the inner pot 14 is stirred at the outer peripheral portion away from the rotation center of the rotating body 21, and the upper portion of the food material 34 is stirred. A central portion of the rotating body 21 near the center of rotation is agitated. As a result, the ingredients in the inner pot 14 can be stirred more efficiently than the configuration in which the ingredients are stirred at the same position within the inner pot 14 at a certain distance from the center of rotation of the rotating body 21 .

In order to further increase the stirring efficiency, the stirring arms 22 arranged diagonally in this manner are provided with a first blade portion 30 and a second blade portion 31 having different functions, as shown in FIGS. ing.

The first blade portion 30 has a shape that receives a downward reaction force from the food material 34 that is the content contained in the inner pot 14 as the stirring arm 22 rotates. Specifically, as shown in FIGS. 3 and 6, the first blade portion 30 has an inclined surface 30a facing obliquely upward in the rotational direction indicated by the arrow Z. As shown in FIG. 6 is a view of the stirring arm 22 viewed from the tip side.

In this embodiment, the first blade portion 30 is formed to protrude downward, and the blade surface facing forward in the rotational direction is formed as an inclined surface 30a facing obliquely upward. Since the first blade portion 30 has such an inclined surface 30 a , the first blade portion 30 receives a downward reaction force from the food material 34 when the stirring arm 22 rotates while in contact with the food material 34 . As a result, the stirring arm 22 dives into the food material 34 while rotating, rotates downward while diving, and stops at the lower position.

In this way, by providing the first blade portion 30, a force for rotating the stirring arm 22 in the rotating direction always acts on the rotating stirring arm 22, keeping the state in the lower position and effectively stirring the lower portion of the food material 34. can be stirred to Moreover, since it is formed so as to protrude downward, the area of contact with the foodstuff 34 is increased, which also improves the stirring performance.

On the other hand, the second blade portion 31 has a shape that applies a downward force to the ingredients 34 that are the contents accommodated in the inner pot 14 by the rotation of the stirring arm 22 . Specifically, as shown in FIGS. 2 and 6, the second blade portion 31 has an inclined surface 31a facing obliquely downward on the forward side in the rotational direction.

In this embodiment, the second blade portion 31 is formed so as to protrude forward in the rotational direction. becomes an inclined surface 31a directed obliquely downward. Since the second blade portion 31 has such an inclined surface 31a, when the stirring arm 22 rotates in a state in which the second blade portion 31 is in contact with the food material 34 at the lower position, the second blade portion 31 can move against the food material 34. Apply downward force.

Further, in this embodiment, as shown in FIG. 6, the root portion of the blade surface corresponding to the lower surface of the second blade portion 31, which is connected to the stirring arm 22, is an inclined surface facing obliquely downward in the forward direction of rotation. It has become. Therefore, the inclined surface of the root portion can also apply a downward force to the foodstuff 34 as the stirring arm 22 rotates.

When the stirring arm 22 sinks into the foodstuff 34 due to the downward reaction force acting on the first blades 30, the foodstuff 34 receives an upward force from the first blades 30 and is pushed upward. The second blade portion 31 applies a downward force to the food material 34 pushed up and pushes it back toward the bottom side of the inner pot 14 . As a result, it is possible to stir the food material 34 upside down, thereby further improving the stirring performance.

Further, in the present embodiment, as shown in FIGS. 2 to 5, the first blade portion 30 is provided at the tip of the stirring arm 22, and the second blade portion 31 is provided at the central portion of the stirring arm 22. ing. By providing the first blade portion 30 at the tip of the stirring arm 22, the first blade portion 30 can be brought into contact with the food material 34 and burrow into the food material 34 even if the amount of the food material 34 is small. Further, by providing the second blade portion 31 in the central portion of the stirring arm 22, the portion where the downward force is applied to the food material 34 can be separated from the tip portion where the first blade portion 30 is provided. As a result, the downward force applied to the food material 34 by the second blade part 31 inhibits the movement of the stirring arm 22 trying to get into the food material 34 by the reaction force of the first blade part 30. can be done.

Furthermore, in this embodiment, as shown in FIGS. 2 to 5, the first blade portion 30 and the second blade portion 31 are separated from each other. By separating the first blade portion 30 and the second blade portion 31, the downward force applied to the food material 34 by the second blade portion 31 sinks into the food material 34 due to the reaction force of the first blade portion 30. Inhibition of the intended movement of the stirring arm 22 can be further suppressed.

Further, as described above, in the present embodiment, the second blade portion 31 is formed so as to protrude forward in the rotation direction of the rotating body 21 . With such a configuration, the second blade portion 31 is provided to apply a downward force to the foodstuff 34 by the rotation of the stirring arm 22 without buffering with the inner lid 16 when the stirring arm 22 is in the upper position. be able to.

[Embodiment 2]
Other embodiments of the invention are described below. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

FIG. 7 is a partially cross-sectional perspective view showing the inner pot 14 and the stirring device 20' in the cooking device 1' of Embodiment 2, showing a state where the stirring arm 22 of the stirring device 20' is in the upper position. FIG. 8 is a partially cross-sectional perspective view showing the inner pot 14 and the stirring device 20' in the heating cooker 1'. Indicates a state. FIG. 9 is a partially cross-sectional perspective view showing the inner pot 14 and the stirring device 20' in the heating cooker 1', showing a state where the stirring arm 22 of the stirring device 20' is in the lower position.

As shown in FIGS. 7 to 9, if the stirring arm 22 is the first stirring arm 22, the stirring device 20' further includes a second stirring arm 33 shorter than the first stirring arm 22. As shown in FIGS. The second stirring arm 33 extends in one direction similarly to the first stirring arm 22 , and one end of the second stirring arm 33 is different from the shaft portion 25 that is the rotation fulcrum of the first stirring arm 22 . , is attached via a shaft portion 35 to one end portion on the opposite side of the rotation center of the rotating body 21 . This shaft portion 35 is the fulcrum of rotation of the second stirring arm 33 . In other words, the second stirring arm 33 has a rotation fulcrum (shaft portion) on the side opposite to the rotation fulcrum (shaft portion 25) of the first stirring arm 22 across the rotation center (connecting portion 24) of the rotating body 21. 35).

Similarly to the first stirring arm 22 , the second stirring arm 33 also has an upper position extending along the inner lid (lid body) 16 and a lower position standing obliquely downward with respect to the lower surface of the inner lid 16 . It is provided so as to be rotatable between.

The second stirring arm 33 is also provided with a stopper that restricts rotation of the second stirring arm 33 . The rotation of the second stirring arm 33 is stopped at the lower position by the stopper so that it cannot move below the lower position.

In this embodiment, the first stirring arm 22 and the second stirring arm 33 are connected between the shaft portion 25 and the shaft portion 35 and their respective tip portions. The second stirring arm 33 is interlocked with the movement of the first stirring arm 22, and is provided so that when the rotation of the first stirring arm 22 stops, the second stirring arm 33 also stops. Specifically, an elongated hole 36 is formed in the first stirring arm 22 , and a slide pin 37 formed in the second stirring arm 33 is movably inserted into the elongated hole 36 .

As shown in FIG. 7, at the upper position where the first stirring arm 22 and the second stirring arm 33 are parallel, the sliding pin 37 is positioned at the end of the long hole 36 on the shaft portion 25 side. From this position, when the first stirring arm 22 rotates downward under its own weight, a pull-down force acts on the sliding pin 37 inserted in the long hole 36, and the second stirring arm 33 also rotates downward. do. As shown in FIG. 8, the tip portions of the first stirring arm 22 and the second stirring arm 33 move downward while intersecting with each other at the position of the sliding pin 37 . Then, as shown in FIG. 9, when the first stirring arm 22 reaches the lower position and stops rotating, the sliding pin 37 reaches the end of the long hole 36 opposite to the shaft portion 25 . Then, the rotation of the second stirring arm 33 also stops.

In such a configuration of the stirring device 20, the second stirring arm 33 having a different length stirs a portion different from that of the first stirring arm 22, so that the stirring performance can be further improved. In addition, the first stirring arm 22 and the second stirring arm 33 are connected so that when the rotation of the first stirring arm 22 stops, the rotation of the second stirring arm 33 also stops. A stopper mechanism may be provided only for the arm 22 .

Here, the first stirring arm 22 having the first blade portion 30 and the second blade portion 31 is assumed, but the long stirring arm and the short stirring arm intersect each other at the lower position and rotate to achieve stirring. sex improves. Therefore, the longer agitating arm may be configured to include neither the first blade portion 30 nor the second blade portion 31, or to include the first blade portion 30 only.

In addition, in the example of FIG. 7, the second stirring arm 33 stirs the upper peripheral side of the food material 34 . On the other hand, one end of the rotating body 21 is extended from the center of rotation, and the shaft portion 35 of the second stirring arm 33 is positioned away from the center of rotation, so that the second stirring arm 33 stirs the central portion of the food material 34. You may make it

〔summary〕
The heating cooker 1 according to aspect 1 of the present invention includes an inner pot 14, a lid body (inner lid 16) that covers the inner pot 14, and a stirring that stirs the contents of the inner pot 14 (foodstuff 34). and a device 20, wherein the stirring device 20 is attached to the inside of the lid and rotates along the lower surface of the lid; A rotation fulcrum (shaft portion 25) is provided on the edge side of the lid away from the center of rotation, and an upper position extending along the lid and an obliquely downward position with respect to the lower surface of the lid are provided. and a stirring arm (first stirring arm 22) provided to be rotatable between the standing lower position and the stirring arm, and the stirring arm is accommodated in the inner pot 14 by rotating the stirring arm. A first blade portion 30 having a shape that receives a downward reaction force from the contents that have been stirred, and a first blade portion 30 that has a shape that applies a downward force to the contents accommodated in the inner pot 14 by rotating the stirring arm. 2 wing portions 31 are provided.

In the heating cooker 1 according to aspect 2 of the present invention, in aspect 1, the first blade portion 30 may have an inclined surface 30a facing obliquely upward in the forward direction of rotation.

In the heating cooker 1 according to aspect 3 of the present invention, in aspect 1 or 2, the second blade portion 31 may have an inclined surface 31a facing obliquely downward in the rotation direction forward.

In the cooking device 1 according to aspect 4 of the present invention, in any one of aspects 1 to 3, the first blade 30 is provided at the tip of the stirring arm, and the second blade 31 is provided at the tip of the stirring arm. It is also possible to adopt a configuration in which it is provided near the center of the arm.

The heating cooker 1 according to aspect 5 of the present invention, in aspect 4, can also have a configuration in which the first blade portion 30 and the second blade portion 31 are separated from each other.

The heating cooker 1 according to aspect 6 of the present invention, in any one of aspects 1 to 5, may be configured such that the second blade portion 31 protrudes in the rotation direction of the rotating body 21 .

In any one of aspects 1 to 6, the cooking device 1 according to aspect 7 of the present invention is configured such that, when the stirring arm 22 is the first stirring arm 22, a second stirring arm 33 shorter than the first stirring arm 22 is further provided. The second stirring arm 33 has a rotating fulcrum (shaft portion 35) on the opposite side of the rotating body 21 with respect to the rotating fulcrum of the first stirring arm 22, It can also be configured to be rotatable between an upper position extending along the lid and a lower position standing obliquely downward with respect to the lower surface of the lid.

In the heat cooker 1 according to aspect 8 of the present invention, in aspect 7, the first stirring arm 22 and the second stirring arm 33 are connected between their respective rotation fulcrums and tip portions, It is also possible to configure such that when the rotation of the first stirring arm 22 stops, the rotation of the second stirring arm 33 stops.

The present invention is not limited to the above-described embodiments, but can be modified in various ways within the scope of the claims, and can be obtained by appropriately combining technical means disclosed in different embodiments. is also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

1, 1' heat cooker 11 cooker main body 12 lid 13 rotation support 14 inner pot 15 outer lid 16 inner lid 20, 20' stirring device 21 rotating body 22 stirring arm, first stirring arm 24 connecting portion 25, 35 Shaft portion 26 Stopper 30 First blade portions 30a, 31a Inclined surface 31 Second blade portion 33 Second stirring arm 34 Food material 36 Long hole 37 Sliding pin

Claims (8)

inner pot and
a lid that covers the inner pot;
a stirring device for stirring the contents of the inner pot,
The stirring device
a rotating body attached to the inside of the lid and rotating along the lower surface of the lid;
An upper position that is attached to the rotating body and has a rotation fulcrum on the edge side of the lid away from the center of rotation of the rotating body, and that extends along the lid; a stirring arm rotatably provided between a lower position standing obliquely downward with respect to the
The stirring arm is
a first blade portion having a shape that receives a downward reaction force from the contents accommodated in the inner pot by rotating the stirring arm;
and a second blade portion having a shape that exerts a downward force on the contents housed in the inner pot by rotating the stirring arm. 2. The heating cooker according to claim 1, wherein the first blade portion has an inclined surface facing obliquely upward in the forward direction of rotation. The heating cooker according to claim 1 or 2, wherein the second blade portion has an inclined surface facing obliquely downward toward the front in the rotation direction. The first blade part is provided at the tip part of the stirring arm,
4. The heating cooker according to any one of claims 1 to 3, wherein the second blade portion is provided in the central portion of the stirring arm. 5. The heating cooker according to claim 4, wherein the first blade portion and the second blade portion are separated from each other. The heating cooker according to any one of claims 1 to 5, wherein the second blade protrudes forward in the rotation direction of the rotating body. If the stirring arm is the first stirring arm, the second stirring arm is further provided, which is shorter than the first stirring arm,
The second stirring arm has a rotating fulcrum on the side opposite to the rotating fulcrum of the first stirring arm with respect to the center of rotation of the rotating body, and extends along the lid body. and a lower position standing obliquely downward with respect to the lower surface of the lid so as to be rotatable. heating cooker. The first agitation arm and the second agitation arm are connected between their pivot points and tip portions, and when the rotation of the first agitation arm stops, the second agitation arm rotates. 8. The heating cooker according to claim 7, wherein the is stopped.

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