JP5089526B2 - rice cooker - Google Patents

Description

  The present invention is a rice cooker that performs cooking by heating an inner pot that contains an object to be heated (such as rice or water), and particularly has a function of cooling and condensing steam generated from the object to be heated during cooking. It relates to rice cookers.

  Conventionally, a rice cooker designed to condense steam generated during cooking from an object to be heated contained in an inner pot by introducing it into a container (tank) containing cooling water and dissipating it in the cooling water. It is known (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 10-192134 (FIG. 1)

  In such a thing, the heavy tank which accommodated the cooling water for condensing a vapor | steam was attached to the main body side wall. For this reason, the stability is poor, the main body may be tilted, and it is unstable. Moreover, when the main body tilted, the amount of water stored in the tank could not be measured accurately.

  The technical problem of the present invention is to make it possible to set the tank stably and accurately measure the amount of water in the tank support portion of the main body that supports the tank containing the cooling water without deformation or bending.

A rice cooker according to the present invention includes a main body having an induction heating coil in which an inner pot is detachably accommodated, a lid body that is hinged to the main body to close an upper opening of the inner pot so as to be openable and closable, and cooling water. A tank that is stored and detachably mounted on the bottom plate of the main body, and a steam generated from an object to be heated in the inner pot during cooking, interposed between the inner pot and the tank, is introduced into the cooling water. A steam conduit for dissipating and condensing water, and a metal reinforcing plate made of a non-magnetic material is provided on the bottom plate of the main body.

According to the rice cooker of this invention, since a tank is mounted on a main body bottom plate, stability is good and a tank can be set easily. In addition, an induction heating coil is used as a heating means, and a metal reinforcement plate made of a non-magnetic material is provided on the bottom plate of the main body that serves as a tank support, so there is no deformation or deflection in the tank support and the amount of water can be accurately measured. In addition to being able to measure, the magnetic force generated from the induction heating coil can be efficiently heated without escaping to the bottom.

Embodiment 1. FIG.
The present invention will be described below with reference to illustrated embodiments.
1 is a longitudinal sectional view showing the overall configuration of a rice cooker according to Embodiment 1 of the present invention, FIG. 2 is a perspective view showing a state in which the rice cooker lid is opened, and FIG. FIG. 4 is an exploded perspective view of the tank, FIG. 5 is a perspective view of the tank assembly, FIG. 6 is a longitudinal sectional view of the tank, and FIG. FIG. 8 is a perspective view showing another example of the tank, and FIG. 9 is a perspective view showing the water amount adjustment of the tank shown in FIG. It is a front view shown in the state which inclined the said tank in order to demonstrate a scale.

  The rice cooker 1 of this embodiment cooks a to-be-heated material by heating the inner pot 2 containing the to-be-heated material (rice, water, etc.) with heating means 3 such as an induction heating coil, and steam generated at this time. Is cooled in the tank 4 storing the cooling water and condensed (recovered).

  More specifically, the rice cooker 1 is connected to the main body 5 having the heating means 3 as shown in FIG. 1 to FIG. A lid 7 for closing the upper opening of the inner hook 2 so as to be openable and closable, a tank 4 for storing cooling water and disposed at the front of the main body 5 and detachably mounted on the bottom plate 8; A steam conduit 9 is provided between the tank 4 and the steam conduit 9 that guides the steam generated from the object to be heated in the inner pot 2 during cooking into the tank 4 to dissipate it into the cooling water and condense it. The bottom plate 8 of the main body 5 is reinforced by a reinforcing plate 11 made of a nonmagnetic metal. In general, water level scales (not shown) are provided at two opposing locations on the inner peripheral surface of the inner hook 2.

  Legs 12 are provided at the four corners of the lower surface of the main body 5, and a pair of legs 12A and 12B located on the front side of the body 5 are arranged directly below the tank 4 and are configured to be height-adjustable. That is, each of the legs 12A and 12B is fixed to the reinforcing plate 11 and has a screw member 12a whose tip hangs downward from the hole 8a of the bottom plate 8, and a cap nut-like height adjusting member screwed into the screw member 12a. 12b. In addition, it is preferable that the rear side leg 12 is also configured to be height adjustable.

  As shown in FIGS. 1 and 4 to 6, the tank 4 includes a tank body 4 a, a tank body cover 4 b that surrounds the tank body 4 a, a packing 4 c that seals the upper opening of the tank body 4 a, and a connection hole for the steam conduit 9. 4d and a steam guide cylinder 4e hanging downward from the connection hole 4d, a tank lid 4f for closing the upper opening of the tank body 4a through a packing 4c, and a lower end of the steam guide cylinder 4e. Attached to a portion located in the upper space of the upper surface of the tank in the steam guide tube 4e, that is, the upper end of the steam guide tube 4e, that is, the reverse funnel-shaped discharge pressure relaxation member 4g that expands in diameter toward the bottom, after cooking, From the flap that prevents the cooling water in the tank from flowing back to the inner pot 2 by letting the air in the upper surface of the water surface into the steam guide cylinder when the inside of the steam guide cylinder becomes negative pressure And a check valve 20 that, at least the tank body 4a and the tank body cover 4b is a translucent material, with is constituted by, for example, a transparent resin (TPX), each member is assembled detachably. In addition, the tank 4 is inclined obliquely with the specified amount of cooling water as shown in FIG. 7, and the water surface is at the drainage portion (here, one side edge of the upper opening edge of the tank body 4a). A scale 10 for adjusting the amount of water is provided at a position that becomes the water level when it is applied, and the tank 4 is adjusted by aligning the water level with the line that is obliquely attached while discarding a large amount of water in advance, that is, the scale 10. The amount of water can be adjusted at a time without leveling.

  In addition, when the drainage port 4h is provided in the tank 4 as shown in FIG. 8 and FIG. 9, when the water surface hits the drainage port 4h by tilting obliquely in a state where the specified amount of cooling water is contained. It goes without saying that a scale 10 for adjusting the amount of water is provided at a position that becomes the water level.

  The lid body 7 is composed of an outer lid 7a and an inner lid 7b, and a steam conduit 9 is sandwiched between them. Among them, the inner lid 7b is formed with a small hole 7c for discharging steam generated during cooking as shown in FIGS. 2 and 3, and on the back side thereof, that is, on the inner pot side end of the steam conduit 9, as shown in FIG. Thus, a pressure valve 21 that opens the passage according to the vapor pressure in the inner pot 2 is provided. The inner lid 7b is also provided with a lid sensor 22 for detecting the initial water temperature and boiling of the article to be heated.

  A seal member 23 is attached to the vapor conduit 9 at the tank side end to contact the edge of the connection hole 4d of the tank cover 4f when the cover 7 is closed and seal the connection portion. Further, as shown in FIG. 1, the steam conduit 9 is formed in inclined surfaces 9a and 9b having a bottom surface of the steam passage having a high middle portion of the passage and inclined downward toward both ends, that is, the inner hook side end and the tank side end. The middle part is designed to function as a weir against the bed.

  Further, in the main body 5, as shown in FIGS. 1 and 3, a water level sensor 24 including a light emitting unit 24 a configured by arranging a plurality of LEDs in the vertical direction and a light receiving unit 24 b corresponding thereto is directed toward the tank 4. Installed.

  Thus, in the rice cooker of this embodiment, since the tank 4 is mounted on the bottom plate 8 of the main body 5, stability is good and the tank 4 can be set easily. Furthermore, since the metal reinforcing plate 11 is provided on the bottom plate 8 serving as the tank support portion, the tank support portion is not deformed or bent, and the amount of water can be measured accurately.

  Further, since the metal reinforcing plate 11 is made of a non-magnetic material, the magnetic force generated from the heating means 3 (induction heating coil) can be efficiently heated without escaping to the bottom.

  In addition, since the pair of legs 12A and 12B located on the front side among the plurality of legs 12 provided on the main body 5 are arranged directly below the tank 4 and are configured to be height-adjustable, In addition to preventing bending, the height of the main body 5 can be adjusted by adjusting the height (main body inclination) by the legs 12A and 12B with reference to the water level scales generally provided at two opposing locations on the inner peripheral surface of the inner pot 2. Can be made to function as a level, and the horizontal plane of the main body 5 can be easily determined. And the measurement precision of the water quantity of the tank 4 installed in the main body 5 can be raised.

  Further, the tank 4 is made of a translucent material, for example, a transparent resin (TPX), and is inclined at an angle with the specified amount of cooling water, and becomes a water level when the water surface is applied to the drainage part. In addition, since the scale 10 for adjusting the amount of water is provided, the amount of water is adjusted at a time without leveling the tank one by one by adjusting the water level to the slanted line (scale 10) while discarding a large amount of water in advance. Can be adjusted.

Embodiment 2. FIG.
FIG. 10 is a perspective view showing an assembly of a rice cooker tank according to Embodiment 2 of the present invention. In the figure, parts corresponding to those of Embodiment 1 are given the same reference numerals. In addition, since the structure of a rice cooker main body, a cover body, a steam conduit | pipe, a tank cover, etc. is the same structure as the thing of above-mentioned Embodiment 1, description is abbreviate | omitted.

  In the rice cooker of the present embodiment, the specified capacity of the cooling water stored in the tank 30 is set to an integral multiple of the measuring cup 31 of rice.

  In the rice cooker of this embodiment, when putting cooling water into the tank 30, the measuring cup 31 of rice is used. The amount of cooling water required is set to be an integral multiple of the rice measuring cup 31. For example, if there are five measuring cups (180 ml), the amount of cooling water is 900 ml. This eliminates the need for preparing new parts for weighing, and makes weighing simple and easy.

Embodiment 3. FIG.
FIG. 11 is an exploded perspective view showing a tank of a rice cooker according to Embodiment 3 of the present invention. In addition, since the structure of a rice cooker main body, a cover body, a steam conduit | pipe, a tank cover, etc. is the same structure as the thing of above-mentioned Embodiment 1, description is abbreviate | omitted.

  In the rice cooker of the present embodiment, the tank 40 is constituted by a first tank having a specified capacity, that is, an inner tank 40a, and a second tank, that is, an outer tank 40b that can completely store the inner tank 40a. .

  In the rice cooker of the present embodiment, in order to put cooling water into the tank 40, first, a full amount of water is put into the inner tank 40a. Next, the inner tank 40a filled with water is set in the outer tank 40b as it is.

  In the rice cooker according to the present embodiment, a predetermined amount of cooling water is obtained if a full amount of water is put into the inner tank 40a. Therefore, a specified amount of cooling water can be put into the tank without worrying about the scale. Thereby, the troublesomeness at the time of measuring cooling water is eliminated, and cooling water can be set easily.

Embodiment 4 FIG.
FIG. 12 is a longitudinal sectional view showing a tank of a rice cooker according to Embodiment 4 of the present invention, and FIG. 13 is a front view for explaining a scale display unit for adjusting the amount of water in the tank. The same parts as those in the first embodiment are denoted by the same reference numerals. In addition, the structure of the rice cooker main body, a cover body, a steam conduit | pipe, etc. is the same structure as the thing of above-mentioned Embodiment 1, and shall refer FIG. 1 thru | or FIG. 4 in description.

  In the rice cooker of this embodiment, a cooling water pouring hole 4 i is formed in the tank lid 4 f covering the upper opening of the tank 4, and the pouring hole 4 i can be closed by the pouring hole lid 50 so as to be freely opened and closed. The tank body 4a is provided with a scale 10a for detecting the water level in a horizontal state where the tank body 4a is placed on the bottom plate 8 of the body 5, that is, the reinforcing plate 11 made of a non-magnetic metal. In addition, a window 4j is formed at a position corresponding to the scale 10a of the tank body cover 4b so that the scale 10a can be viewed from the front. For this reason, the tank main body cover 4b can also be comprised with a translucent material, and the breadth of material selection spreads.

  In the rice cooker of this embodiment, by removing the pour hole lid 50, water can be poured into the tank 4 from the pour hole 4i using a kettle or the like. Moreover, the scale 10a can be visually recognized from the front through the window 4j. For this reason, the specified water amount can be adjusted while the tank 4 is still set in the main body 5.

It is a longitudinal section showing the whole rice cooker composition concerning Embodiment 1 of the present invention. It is a perspective view which shows the state which opened the cover body of the rice cooker which concerns on Embodiment 1 of this invention. It is a disassembled perspective view which shows the state which opened the cover body of the rice cooker which concerns on Embodiment 1 of this invention, and also removed the tank. It is a disassembled perspective view of the tank of the rice cooker which concerns on Embodiment 1 of this invention. It is a perspective view which shows the assembly of the tank of the rice cooker which concerns on Embodiment 1 of this invention. It is a longitudinal cross-sectional view of the tank of the rice cooker which concerns on Embodiment 1 of this invention. It is a front view shown in the state which inclined the said tank in order to demonstrate the scale for the water quantity adjustment provided in the tank of the rice cooker which concerns on Embodiment 1 of this invention. It is a perspective view which shows the other example of the tank of the rice cooker which concerns on Embodiment 1 of this invention. It is a front view shown in the state which inclined the said tank in order to demonstrate the scale for the water quantity adjustment of the tank of FIG. It is a perspective view which shows the assembly of the tank of the rice cooker which concerns on Embodiment 2 of this invention. It is a disassembled perspective view which shows the tank of the rice cooker which concerns on Embodiment 3 of this invention. It is a longitudinal cross-sectional view which shows the tank of the rice cooker which concerns on Embodiment 4 of this invention. It is a front view for demonstrating the scale display part for the water quantity adjustment of the tank of the rice cooker which concerns on Embodiment 4 of this invention.

Explanation of symbols

  1 Rice cooker, 2 Inner pot, 3 Heating means, 4, 30, 40 Tank, 4f Tank lid, 4i Cooling water pouring hole, 5 Body, 6 Hinge, 7 Lid, 8 Bottom plate, 9 Steam conduit, 10 Water volume adjustment Scale for measuring, 10a Scale for detecting water level, 11 Reinforcing plate made of non-magnetic metal, 12, 12A, 12B legs, 12a Screw member (height adjusting means), 12b Height adjusting member (height adjusting means) ), 31 Rice measuring cup, 40a inner tank (first tank), 40b outer tank (second tank).

Claims (7)

A main body having an induction heating coil in which the inner pot is detachably accommodated;
A lid which is hinged to the main body and closes the upper opening of the inner hook so as to be freely opened and closed;
A tank for storing cooling water and detachably mounted on the bottom plate of the main body;
A steam conduit that is interposed between the inner pot and the tank and that causes steam generated from an object to be heated in the inner pot during cooking to be dissipated into the cooling water and condensed in the cooling water, and
A rice cooker comprising a metal reinforcing plate made of a non-magnetic material on the bottom plate of the main body. The body has a plurality of legs, cooker of claim 1 Symbol mounting at least one leg of which is characterized by comprising disposed below the tank. The rice cooker according to claim 1 or 2, wherein the leg is configured to be adjustable in height. The tank is composed of a light-transmitting member, and a scale for adjusting the water amount is provided at a position where the water level is inclined when the water surface is applied to the drainage part by tilting the tank in a state where the specified amount of cooling water is contained. The rice cooker according to any one of claims 1 to 3 , wherein the rice cooker is provided. The rice cooker according to any one of claims 1 to 3 , wherein a capacity of the tank is set to an integral multiple of a measuring cup of rice. The tank, the first tank having a capacity defined, according to any of claims 1 to 3, characterized in that is constituted by a second tank capable of accommodating the first tank rice cooker. The tank is provided with a tank lid covering its upper opening, the tank lid is provided with a cooling water pouring hole, and the tank is provided with a scale for detecting the water level that is visible from the front in a horizontal state. The rice cooker according to any one of claims 1 to 3 .

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