JP2013226203A - Cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooker capable of controlling boiling over of rice gruel or the like to the outside and capable of hygienically cooking a lustrous rice or the like.SOLUTION: A rice cooker makes it possible to come into a first state where an inner opening 22a overlaps a rotating body 11 or agitation arms 12A, 12B fallen to the rotating body 11 in a thickness direction of a lid body 22 during one rotation of the rotating body 11, and into a second state where the inner opening 22a does not overlap both of the rotating body 11 and the agitation arms 12A, 12B fallen to the rotating body 11 in the thickness direction of the lid body 22.

Description

  The present invention relates to a cooking device such as a rice cooker, a range, and an oven.

  Conventionally, as a heating cooker, there exists a rice cooker described in Unexamined-Japanese-Patent No. 2010-82091 (patent document 1). This rice cooker includes a rice cooker body, a lid, and an inner pot arranged in the rice cooker body, and the lid has a steam discharge path, and the steam discharge path faces the inner pot side. An inner opening and an outer opening facing the outside. The said steam discharge passage is provided in order to discharge | emit the vapor | steam which arises in the inner pot at the time of rice cooking, and passed the inner side opening through the outer side opening. This rice cooker uses a steam discharge passage to appropriately discharge excess steam generated in the inner pot to the outside so that delicious rice can be cooked.

  However, in the rice cooker, since the inner opening cannot be closed, so-called rice balls, which are sticky liquids in which rice components (sticky starchy material) are eluted and become cloudy when boiling rice are cooked, There is a problem that it easily passes through the inner opening and spills outside through the outer opening, which is unfavorable for hygiene purposes.

  Moreover, there is a problem that it is difficult to cook delicious rice because it cannot control the discharge of more than necessary rice balls.

JP 2010-82091 A

  Therefore, an object of the present invention is to provide a heating cooker that can suppress spillage to the outside such as rice balls and the like, is hygienic, and can cook shiny rice and the like.

In order to solve the above problems, the heating cooker of the present invention is:
The body,
A storage unit that is stored in the main body and stores contents,
A heating unit attached to the main body and for heating the contents in the housing unit;
A lid that is attached to the upper part of the main body and opens and closes the housing, and has a steam passage for discharging the steam in the housing to the outside;
A stirring unit that is rotatably attached to the lid and rotates and stirs the contents in the housing portion;
A motor for driving the stirring unit,
The inner opening of the steam passage on the container side is arranged above the rotation locus region of the stirring unit.

  The rotation trajectory region is defined as the sum of all regions through which the stirring unit passes when the lid is closed and the stirring unit is rotating.

  According to the present invention, since the inner opening on the inner pot side of the steam passage is arranged at the upper part of the rotation trajectory region of the stirring unit, by driving the stirring unit at the time of boiling such as rice cooking, Even if a so-called rice ball or the like, which is a liquid with stickiness and becomes turbid due to the elution of the ingredient (sticky starch), proceeds toward the inner opening, it proceeds toward the inner opening. Etc. can be cut by the rotating stirring unit and blown away in the radial direction, and it is possible to suppress the penetration or the like from entering the inner opening more than necessary. Therefore, it is possible to prevent the rice balls and the like from spilling outside through the outer opening of the steam passage.

  In addition, according to the present invention, a larger amount of rice cake etc. can be left in the inner pan than in the conventional case by cutting up with a rotating stirring unit. With the rice balls that have been cooked, it is possible to polish the cooked rice etc. and cook delicious rice etc.

In one embodiment,
The stirring unit includes a rotating body rotatably attached to the lid body,
When the stirring unit is attached to the rotating body and the stirring unit rotates in one direction, the stirring unit rotates upright from the rotating body, while the stirring unit rotates in a direction opposite to the one direction. A stirring arm lying on the rotating body,
While the rotating body rotates once in the reverse direction, the inner opening overlaps the rotating body or the stirring arm in the thickness direction of the lid, and the inner opening is the lid of the lid. A second state in which the rotating body and the stirring arm do not overlap in the thickness direction is taken.

  According to the above embodiment, when the rotating body rotates in the reverse direction, the inner opening overlaps with the rotating body or the stirring arm in a state of lying down in the thickness direction of the lid body. And the like can effectively be prevented from entering the inner opening. Therefore, it is possible to suppress spillage to the outside such as a rice ball.

  Moreover, according to the said embodiment, when the rotary body is rotating in the reverse direction, the inner opening is in the second state that does not overlap the rotary body and the stirring arm that is lying down in the thickness direction of the lid. The steam can smoothly enter the inner opening. Therefore, the steam can be discharged properly and delicious rice can be cooked.

  ADVANTAGE OF THE INVENTION According to this invention, the cooking apparatus which can suppress the spilling to the exterior, such as a rice ball, can be implement | achieved and can cook | cook glossy rice etc. while being hygienic.

It is the schematic perspective view which looked at the rice cooker of one Embodiment of this invention from diagonally upward. It is a perspective view in the state where the lid of the above-mentioned rice cooker opened. It is the schematic which looked at the said stirring unit from the inner pot side. It is a schematic perspective view for demonstrating the stirring state of a 1st, 2nd stirring arm. It is the figure which looked at the inner lid with which the said stirring unit was attached from the lower side. It is a figure which shows the internal structure of the control apparatus of this rice cooker, and its peripheral circuit. It is a figure explaining each process of rice cooking of this rice cooker.

  Hereinafter, the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic perspective view of a rice cooker according to an embodiment of the present invention viewed obliquely from above. As shown in FIG. 1, this rice cooker includes a rice cooker main body 1 as a main body and a lid 2 attached to the top of the rice cooker main body 1. An open button 3 for opening the body 2 is provided. Moreover, the front-end | tip part of the power cord 4 protrudes from the rear surface of the rice cooker main body 1. Most of the power cord 4 is wound around a cord reel (not shown) in the rice cooker body 1 so that it can be pulled out.

  A liquid crystal display unit 5 for displaying a cooking method, a cooking name, and the like, and a plurality of operation buttons 6 are provided on the front portion of the upper surface of the lid 2. Further, the steam in the inner pot 7 (see FIG. 2) serving as a storage portion is discharged from a steam discharge port 2a on the upper surface of the lid body 2 through a steam discharge passage (not shown) provided in the lid body 2. It has become.

  FIG. 2 is a perspective view of the rice cooker with the lid 2 opened.

  As shown in FIG. 2, this rice cooker includes a rice cooker body 1, an inner pot 7 accommodated in the rice cooker body 1, and a lid body that is attached to the upper portion of the rice cooker body 1 and opens and closes the inner pot 7. 2 is provided.

  An open button 3 for opening the lid 2 is provided on the front surface of the rice cooker body 1. Further, a locked portion 8 is provided at the front portion of the upper surface of the rice cooker body 1. A locking portion 23 provided at the front portion of the lower surface of the lid 2 is locked to the locked portion 8 so as to be releasable.

  From the rear surface of the rice cooker body 1, the tip of the power cord 4 protrudes. Most of the power cord 4 is wound around a cord reel (not shown) in the rice cooker body 1 so that it can be pulled out.

  In the rice cooker body 1, an induction heating coil 10 is installed as an example of a heating unit for induction heating the inner pot 7. The inner pot 7 accommodates rice, water, and the like as examples of contents. The inner pot 7 is formed of a high heat conductive member such as aluminum, for example, and a magnetic material such as stainless steel for improving the heating efficiency is attached to the outer surface of the inner pot 7, while the inner surface is coated with a fluororesin for preventing adhesion of contents. ing.

  The lid body 2 includes an outer lid 21 positioned on the side opposite to the inner pot 7 side when the lid body 2 is closed, and an inner lid 22 positioned on the inner pot 7 side when the lid body 2 is closed. Have. A motor 24 is attached in the right corner of the rear portion of the outer lid 21. A connecting shaft (not shown) is rotatably installed in the center of the outer lid 21. The connecting shaft rotates by receiving a rotational driving force generated by the motor 24 via a pulley (not shown) and a belt.

  A stirring unit 50 is rotatably attached to the lid 2. The stirring unit 50 is rotated by the driving force of the motor 24 to stir the contents stored in the inner pot 7. Specifically, the stirring unit 50 includes a rotating body 11 that is rotatably attached to the lid body 2 and first and second stirring arms 12A and 12B as stirring bodies that are attached to the rotating body 11. The rotating body 11 is detachably attached to the inner lid 22 of the lid body 2. One end of the rotating shaft 15 protrudes from the portion of the rotating body 11 on the lid 2 side (see FIG. 3). The rotating shaft 15 is detachably connected to the connecting shaft of the outer lid 21 and rotates integrally with the connecting shaft. The rotating shaft 15 is rotatable with respect to the rotating body 11.

  The first and second stirring arms 12A and 12B are adjacent to the rotating body 11 in the radial direction, and are separated from the stirring state in contact with the rice in the inner pot 7 and the rice in the inner pot 7. Switching between the non-stirring state is possible. That is, each of the first and second stirring arms 12A and 12B has one end rotatably attached to the rotating body 11, and the other end separated from the rotating body 11 or attached to the rotating body 11. It is possible to approach.

  FIG. 3 is a schematic view of the stirring unit 50 viewed from the inner pot 7 side. As shown in FIG. 3, the rotating body 11 includes a lid body side member 13 and an inner pan side member 14 detachably attached to the surface of the lid body side member 13 on the inner pan 7 side.

  Between the lid side member 13 and the inner pan side member 14, the first and second stirring arm / bevel gear 30, the first stirring arm gears 31A, 32A, 33A, and the second stirring arm gear 31B are provided. , 32B, 33B are arranged.

  The rotational drive of the rotary shaft 15 is transmitted to the first stirring arm rotating shaft 34A via the first and second stirring arm umbrella gears 30 and the first stirring arm gears 31A, 32A, 33A, and the first The second stirring arm rotating umbrella 34B is transmitted through the second stirring arm umbrella gear 30 and the second stirring arm gears 31B, 32B, 33B.

  As a result, when the rotary shaft 15 rotates, the first and second stirring arms 12A and 12B are rotated about the first and second stirring arm rotating shafts 34A and 34B. It is possible to switch from the non-stirring state shown in FIG. 4 to the stirring state shown in FIG. 4 or from the stirring state to the non-stirring state.

  The agitation unit 50 can be rotated in both the forward direction and the reverse direction as one direction. When the agitating unit 50 rotates in the forward direction, as shown in FIG. 4, the stirring unit 50 stands up and rotates from the rotating body 11, while when it rotates in the opposite direction, as shown in FIGS. It is intended to fall on the rotating body 11. In addition, in FIG. 4, illustration of the rice cooker main body 1 and the cover body 2 is abbreviate | omitted so that 1st, 2nd stirring arm 12A, 12B can be visually recognized.

  FIG. 5 is a view of the inner lid 22 to which the stirring unit 50 is attached as viewed from below.

  As shown in FIG. 5, the inner lid 22 has an inner opening 22 a of a steam discharge passage, and this inner opening 22 a is a lid indicated by 2 a in FIG. 1 through a steam discharge passage existing in the lid body 2. It is connected to a steam port as an external opening of the body 2. As shown in FIG. 5, the inner opening 22a is on the inner pot 7 side of the lid 2 and the outermost peripheral portion of the rotating body 11 and the first and second stirring arms 12A and 12B in the non-stirring state (inclined state). Is located in a position overlapping the inner region of the rotation locus (indicated by the dotted line in FIG. 5) in the thickness direction of the lid. The inner opening 22 a is arranged at the upper part of the rotation locus region of the stirring unit 50.

  Further, as shown in FIG. 5, the inner opening 22a is located on the inner pan 7 side of the lid 2 and on the outer side of the rotating body 11 and the first and second stirring arms 12A and 12B in the non-stirring state (inclined state). The inner region of the rotation track of the inner periphery (the shortest distance between the center of the rotating body 11 and the outer edge of the member composed of the rotating body 11 and the first and second stirring arms 12A, 12B in the non-stirring state (falling state)) It exists in the position which does not overlap in the thickness direction of a cover body in the area | region of the circle | round | yen which makes distance a radius.

  In other words, this rice cooker has a stirring arm in which the inner opening 22a is lying with respect to the rotating body 11 or the rotating body 11 in the thickness direction of the lid 2 while the rotating body 11 rotates once. A first state that overlaps 12A and 12B and a second state in which the inner opening 22a does not overlap the rotating body 11 and the stirring arms 12A and 12B that are lying with respect to the rotating body 11 in the thickness direction of the lid 2 are taken. It is like that.

  FIG. 6 is a diagram showing an internal configuration of the control device 99 of this rice cooker and its peripheral circuits.

  As shown in FIG. 2, this rice cooker control device 99 includes a CPU (Central Processing Unit) 81, a memory 82 for storing programs and data, a timer 83 for measuring time and outputting time-measured data, and each part And an I / F (Interface) 84 for inputting and outputting data.

  The CPU 81 energizes the induction heating coil 10 to cause a heat generation operation, a coil drive unit 92, operation buttons 6, a display control unit 93 that controls the display operation of the display unit 5, and motor drive of the stirring arms 12A and 12B. Data is input / output via the I / F 84 to each of the weight sensor 97 and the temperature sensor 98 for measuring the weight of the contents in the unit 95 and the inner pot 7.

  This rice cooker has a temperature sensor as a temperature measurement unit and a weight sensor as a gravity measurement unit with a known configuration. While the temperature sensor outputs a signal indicating the temperature of the contents (rice, water) contained in the inner pot 7 to the control device 99, the gravity sensor is the mass of the contents (rice, water) of the inner pot 7. Is output to the control device 99.

  Drawing 7 is a figure explaining each process of rice cooking of this rice cooker. In FIG. 7, the vertical axis indicates the water temperature, and the horizontal axis indicates the elapsed time from the start of cooking. Moreover, FIG. 7 has shown the case where 3 go of white rice is accommodated in the inner pot 7 and cooked in the cooker of 5.5 go (one go of rice is 150 grams).

  As shown in FIG. 7, in this embodiment, the rice is subjected to a water absorption / gelatinization process in which heating is performed by the induction heating coil 10, followed by a dipping process in which heating by the induction heating coil 10 is not performed, and then boiling. A continuous process and a steaming process are performed to complete the process. Here, in the immersion step and the water absorption / gelatinization step, water is sufficiently sucked up to the core of the rice in order to gelatinize the starch of rice.

  In addition, when water and heat are added to rice, the shape of raw starch changes, and it becomes an easily digestible alpha (α) starch. This change from raw starch to pregelatinized starch is called gelatinization. When gelatinization starts, when water and heat are added to the starch of rice, a phenomenon that changes to a paste is observed, and the surface of the rice grain gradually changes to a soft starch with a stickiness.

  In addition, it is said that the gloss of rice is caused by the rice component (especially amylopectin) eluted during rice cooking being coated on the rice surface again when the rice is steamed. Here, rice cake is the water added with rice during cooking, especially when the rice component (sticky starch) elutes during boiling in the latter half of the cooking. Sure.

  This rice cooker is configured to drive the motor driving unit 95 so as to reversely rotate the stirring unit 50 when the control device 99 recognizes the boiling continuing process by a signal from the temperature sensor. Then, with the stirring arms 12A and 12B lying on the rotating body 11, the rotating body 11 and the stirring arms 12A and 12B are reversely rotated, and the rotating body 11 and the stirring arms 12A and 12B are turned off. Is supposed to do.

  According to the rice cooker of the said embodiment, since the inner side opening 22a by the side of the inner side of a steam channel | path is arrange | positioned at the upper part of the rotation locus area | region of the stirring unit 50, the stirring unit 50 at the time of boiling of rice cooking etc. Can be cut by the stirring unit 50 in which the reversely rotating stirring arms 12A and 12B are lying down, and can be blown in the radial direction. Intrusion into the opening 22a can be suppressed. Therefore, it is possible to prevent the rice balls from being blown out through the outer opening of the steam passage.

  Moreover, according to the rice cooker of the said embodiment, since it can leave more rice balls in the inner pot 7 compared with the past by the rice cake turning in the reverse rotation stirring unit 50, With rice balls that have been discharged in the conventional configuration, it is possible to polish the cooked rice and the like, and to cook delicious rice and the like.

  Moreover, according to the rice cooker of the said embodiment, since rice balls can be prevented from being spilled, delicious rice and the like can be cooked by cooking with high heating power without reducing the output of the heating means.

  Moreover, according to the rice cooker of the said embodiment, when the rotary body 11 is reversely rotating, the inner opening 22a is the rotary body 11 or the stirring arm 12A in the state of lying down in the thickness direction of the lid body 2. , 12B can be effectively suppressed from entering the inner opening 22a in the first state overlapping with 12B. Therefore, it is possible to suppress spillage of the rice balls to the outside.

  Moreover, according to the rice cooker of the said embodiment, when the rotary body 11 is reversely rotating, the inner opening 22a is the rotary body 11 and the stirring arm 12A in the state of lying down in the thickness direction of the lid body 2, In the second state that does not overlap with 12B, the steam can smoothly enter the inner opening 22a. Therefore, the steam can be discharged properly and delicious rice can be cooked.

  In the above-described embodiment, while the rotating body 11 is rotating once, the inner opening 22a is lying down with respect to the rotating body 11 or the rotating body 11 in the thickness direction of the lid body 2A. , 12B and a second state where the inner opening 22a does not overlap both the rotating body 11 and the stirring arms 12A, 12B lying on the rotating body 11 in the thickness direction of the lid 2. I was supposed to take it. However, in the rice cooker according to the present invention, the inner opening overlaps with the rotating body or the stirring arm lying down with respect to the rotating body in the thickness direction of the lid body at all times while the rotating body makes one rotation. Only the first state may be taken.

  Moreover, in the said embodiment, although the induction heating coil 10 was used as an example of a heating part, you may use a heater as an example of a heating part.

  Moreover, in the said embodiment, although two 1st, 2nd stirring arms 12A and 12B were used as a stirring body, you may use one stirring arm.

  Moreover, in the said embodiment, although the rice cooker of 5.5 go (one go of rice is 150 grams) explained the case where 3 rice white rice was accommodated in the inner pot 7 and cooked, It goes without saying that the amount of rice that can be cooked is not limited to the amount described above.

  Moreover, although the example of rice cooking of rice was demonstrated in the said embodiment, the heating cooker of this invention can be used conveniently also for cooking of jam, a sauce, etc. And, when the cooking device of the present invention is used for cooking jam or the like, bubbles generated by heating can be suppressed from being blown out, and the jam or the like can be cleaned and sanitized without reducing the output of the heating means. I can cook.

  Moreover, in the said embodiment, although the heating cooker was a rice cooker, ovens, such as a range and a steam cooker, may be sufficient as the heating cooker of this invention. The cooking device according to the present invention may be any cooking device as long as the cooking device has a container capable of accommodating the contents and can heat the ingredients.

  Needless to say, the present invention is not limited to that described in the embodiment and the modification. For example, it goes without saying that the present invention can be configured by combining two or more configurations among all the configurations described in the embodiment and the modification.

DESCRIPTION OF SYMBOLS 1 Rice cooker main body 2 Cover body 7 Inner pan 11 Rotating body 21 Outer cover 22 Inner cover 50 Stirring unit 12A, 12B Stirring arm 22a Inner opening

Claims (2)

The body,
A storage unit that is stored in the main body and stores contents,
A heating unit attached to the main body and for heating the contents in the housing unit;
A lid that is attached to the upper part of the main body and opens and closes the housing, and has a steam passage for discharging the steam in the housing to the outside;
A stirring unit that is rotatably attached to the lid and rotates and stirs the contents in the housing portion;
A motor for driving the stirring unit,
The rice cooker characterized in that an inner opening of the steam passage on the container side is disposed at an upper portion of a rotation locus region of the stirring unit. In the rice cooker according to claim 1,
The stirring unit includes a rotating body rotatably attached to the lid body,
When the stirring unit is attached to the rotating body and the stirring unit rotates in one direction, the stirring unit rotates upright from the rotating body, while the stirring unit rotates in a direction opposite to the one direction. A stirring arm lying on the rotating body,
While the rotating body rotates once in the reverse direction, the inner opening overlaps the rotating body or the stirring arm in the thickness direction of the lid, and the inner opening is the lid of the lid. The rice cooker characterized by taking the 2nd state which does not overlap with both the said rotary body and the said stirring arm in thickness direction.

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