JP6045135B2 - rice cooker - Google Patents

Description

  The present invention relates to a rice cooker.

  Generally, a rice cooker has a main body, a metal inner pot that has a flange at the opening edge and is detachably accommodated in the main body, and a heating means that heats the inner pot, for example, induction heating that heats the inner pot. It has a coil and a lid that covers the top opening of the main body so that it can be opened and closed. An inner lid and an annular packing are provided at the lower part of the lid, and the gap between the inner hook flange and the inner lid is sealed with the packing. It has become so. In such a thing, a metal flange ring is arranged on the flange of the inner hook so that the inner hook can be easily held to improve usability (for example, see Patent Document 1).

Japanese Patent No. 3617332 (FIGS. 1, 2, and 3)

  However, in the case where a metal flange ring is arranged on the flange of the metal inner hook, heat is easily transmitted to the flange ring. Therefore, the flange ring immediately after cooking became hot, and the inner pot just after cooking could not be taken out from the main body with bare hands.

  Also, the metal inner pot is easy to slide after being washed and sometimes dropped.

  The present invention has been made to solve the above-described problems, and provides a rice cooker having an inner pot that can be taken out of the main body with bare hands even after cooking, and that is difficult to slide. Objective.

A rice cooker according to the present invention includes a main body, an inner pot having a flange at an opening edge, and detachably housed in the main body, a heating means for heating the inner pot, and an upper surface opening of the main body. In the rice cooker having a freely covering lid, the lid has an annular lid packing made of silicon rubber pressed against the flange side of the inner hook when the lid is closed, Is provided with a ring made of silicon rubber having holes at a plurality of locations in the circumferential direction, the ring including an upper surface covering the flange from above, a lower surface covering the flange from below, the upper surface and the lower surface And a seal portion set to extend to a position where the lid packing can be contacted to the inner peripheral edge portion of the upper surface, and the thickness is reduced toward the end. Yes, and the seal portion, the lid on the lid closed In contact with Kkin is also sealed to the between the flange of the inner pot and the lid with the lid gasket.

In the rice cooker of the present invention, the lid has an annular lid packing made of silicon rubber pressed against the flange side of the inner hook when the lid is closed, and the flange of the inner hook is made of silicon rubber . A ring is provided , and the ring has a seal portion that is set on the inner peripheral edge of the upper surface thereof so as to extend to a position where the ring can come into contact with the lid packing, and becomes thinner toward the end. However, when the lid is closed, it is configured as a seal part that contacts the lid packing and seals between the lid and the flange of the inner pot together with the lid packing. The inner hook can be removed from the main body with bare hands using the handle as a handle. Furthermore, since the ring made of silicon rubber is harder to slide than metal, an easy-to-use inner pot can be obtained and never dropped. Further, since the gap between the lid and the flange of the inner hook is sealed by contact between the lid packing made of silicon rubber and the ring made of silicon rubber, the adhesion is good and the sealing performance is improved.

It is a top view of the rice cooker to which this invention is applied. It is sectional drawing which looked at the rice cooker to which this invention is applied from the side. It is sectional drawing and the principal part enlarged view which looked at the rice cooker to which this invention is applied from the front. It is sectional drawing which expands and shows partially the flange part of the inner pot of the rice cooker which concerns on Embodiment 1 of this invention. It is sectional drawing which expands and shows partially the flange part of the inner pot of the rice cooker which concerns on Embodiment 2 of this invention. It is sectional drawing which expands and shows partially the flange part of the inner pot of the rice cooker which concerns on Embodiment 3 of this invention. It is sectional drawing which expands and shows partially the flange part of the inner pot of the rice cooker which concerns on Embodiment 4 of this invention. It is sectional drawing which expands and shows partially the relationship between the flange part of the inner pot of the rice cooker which concerns on Embodiment 5 of this invention, and cover packing. It is sectional drawing which expands and shows partially the relationship between the flange part and inner cover of the inner pot of the rice cooker which concerns on Embodiment 6 of this invention.

Embodiment 1. FIG.
First, a rice cooker to which the present invention is applied will be described. FIG. 1 is a plan view of a rice cooker to which the present invention is applied, FIG. 2 is a sectional view of the rice cooker to which the present invention is applied as viewed from the side, and FIG. 3 is a front view of the rice cooker to which the present invention is applied. FIG.
As shown in FIGS. 1 to 3, a rice cooker to which the present invention is applied includes a main body 1 in which an inner pot 2 having a flange 2a at an opening edge is detachably accommodated, and steam generated during cooking as a main body. A cover 4 that has an exhaust port 3 for dissipating outside and is hinged to the rear part of the main body 1 so as to close the upper opening of the inner hook 2 so as to be openable and closable, and interposed between the inner pot 2 and the exhaust port 3 In addition, there is a separation case 10 that forms a steam passage 6 that introduces the steam generated from the heated object in the inner pot 2 during cooking through the steam inlet 5 and leads it to the outlet 3. In addition, the towel separating case 10 has a reservoir recess 7 for storing steam separated from the steam, and a towel return hole 8 for returning the towel stored in the reservoir recess 7 into the inner pot 2. An on-off valve 9 for opening and closing the return hole 8 is provided.

  The inner pot 2 is made of a laminated plate composed of aluminum material on the inside and stainless steel on the outside, and the inner surface is coated with fluorine, and the stainless steel material generates heat by a magnetic field of a coil, which will be described later, and is conducted to the aluminum material. Is. The flange 2 a of the inner hook 2 serves as a locking portion supported by the main body 1 when the inner hook is stored in the main body 1. That is, the inner hook 2 is supported in a suspended manner in the main body 1 by supporting the flange 2 a when stored in the main body 1. The flange 2a of the inner hook 2 serves as a holding portion when the inner hook 2 is taken out from the main body 1.

  An engagement release button 11 for the lid 4 is provided on the front surface of the main body 1. A coil base 20 facing the outer surface of the bottom of the inner hook is provided below the inner hook 2 in the main body 1, and an induction heating coil 12, which is a heating means for induction heating the inner hook 2, is provided on the outer surface of the coil base 20. It is wound in contact. A temperature sensor 13 is attached to the center of the bottom of the main body 1 to detect the heat generation temperature near the center by being urged upward and coming into contact with the bottom surface of the inner hook 2. Further, on the side of the inner pot 2 in the main body 1, a stainless steel cylindrical heat shield plate 22 having a body heater 21 attached to the outer peripheral side surface is provided.

  The lid 4 has an inner lid 14 detachably provided at the bottom. The inner lid 14 includes a heat radiating plate 16 heated by the lid heater 15, an annular lid packing 17 made of, for example, silicon rubber and having flexibility to seal between the inner lid 14 and the flange 2 a of the inner hook 2. have. The heating of the heat radiating plate 16 by the lid heater 15 is performed in order to avoid dew condensation on the inner lid 14 at the time of cooking rice or keeping warm.

FIG. 4: is sectional drawing which expands and shows partially the flange part of the inner pot of the rice cooker which concerns on Embodiment 1 of this invention.
The rice cooker according to the first embodiment of the present invention is a portion to be touched when the hand of the flange 2a of the inner pot 2 is held as shown in FIG. 4, here, the flange tip is folded back from the outer peripheral side of the upper surface of the flange, and the entire area of the lower surface of the flange is covered. The area to be covered is covered with an elastic body that is less likely to transmit heat than the metal (stainless steel or aluminum) constituting the flange 2a, for example, a ring 30A having a J-shaped cross section made of silicon rubber. Note that the ring 30A made of silicon rubber is attached to the flange 2a by being fitted into the flange 2a using its stretchability, but may be adhered to the flange 2a. .

  In the rice cooker according to the first embodiment of the present invention, the range that may be touched when the flange 2a of the inner pot 2 is held by hand is less likely to transmit heat than the metal constituting the flange 2a, and has heat resistance. Since it was covered with the ring 30A made of silicon rubber, the portion touched by the hand of the flange 2a of the inner pot 2 does not become hot immediately after cooking. For this reason, the inner pot 2 can be taken out from the main body 1 with bare hands even immediately after cooking.

  Further, since the ring 30A made of an elastic body (silicon rubber) is harder to slide than a metal (stainless steel or aluminum), an easy-to-use inner pot 2 is obtained and is not dropped.

Embodiment 2. FIG.
FIG. 5 is an enlarged sectional view partially showing the flange portion of the inner pot of the rice cooker according to the second embodiment of the present invention. In the figure, parts corresponding to those of the first embodiment are denoted by the same reference numerals. The description is omitted.
In the rice cooker according to Embodiment 2 of the present invention, as shown in FIG. 5, holes 2b are formed in a plurality of locations in the circumferential direction of the flange 2a of the inner pot 2, and silicon rubber is flown into the holes 2b. The ring 30B is formed so as to be integrated with the flange 2a of the inner hook 2 by pouring, so that a connecting portion 33 between the upper surface 31 and the lower surface 32 of the ring 30B is formed. The other configuration is the same as that of the first embodiment described above, and has all the functions of the first embodiment.

  In the rice cooker according to the second embodiment of the present invention, the ring 30B made of silicon rubber is formed integrally with the flange 2a of the inner pot 2, so in addition to the functions of the first embodiment, the ring 30B The effect of preventing the dropout can be obtained.

Embodiment 3. FIG.
FIG. 6 is an enlarged cross-sectional view partially showing the flange portion of the inner pot of the rice cooker according to Embodiment 3 of the present invention. In the drawing, parts corresponding to those of Embodiment 1 are denoted by the same reference numerals. The description is omitted.
The rice cooker according to Embodiment 3 of the present invention is provided with a downward annular step 2c on the outer peripheral edge of the flange 2a of the inner hook 2 as shown in FIG. 6, and on the inner peripheral side of the lower surface of the flange 2a. An annular recess 2d is formed. On the other hand, the ring 30C made of an elastic body (silicone rubber) has an upper surface 34 set to a thickness equal to the height of the stepped portion 2c and is formed so as to be fitted into the stepped portion 2c. It is comprised so that it may become flush with the upper surface of 2 flange 2a. The ring 30C is formed with an annular flange-shaped bulging portion 36 that can be fitted into the recess 2d of the flange 2a at the inner peripheral edge of the lower surface 35. The other configuration is the same as that of the first embodiment described above, and has all the functions of the first embodiment.

  In the rice cooker according to Embodiment 3 of the present invention, the ring 30C made of silicon rubber is provided so as to be flush with the upper surface of the flange 2a of the inner pot 2, so that the function of Embodiment 1 described above is provided. In addition, when spilling water from the inner pot 2, the drainage is good and the usability is improved.

Embodiment 4 FIG.
FIG. 7 is an enlarged cross-sectional view partially showing the flange portion of the inner pot of the rice cooker according to the fourth embodiment of the present invention. The description is omitted.
The rice cooker according to Embodiment 4 of the present invention is provided with an extension portion 37 extending from the base attached to the flange 2a to the lower side of the flange 2a on the ring 30D made of silicon rubber as shown in FIG. The portion 37 covers the corner portion 2e from the flange 2a of the inner hook 2 toward the outer periphery of the trunk portion of the inner hook 2. The other configuration is the same as that of the first embodiment described above, and has all the functions of the first embodiment.

  In the rice cooker according to Embodiment 4 of the present invention, a ring that is made of silicon rubber by expanding the range that can be touched when holding the flange 2a of the inner pot 2 by hand to the trunk of the inner pot 2. Since it covers with the extension part 37 of 30D, the safety | security at the time of taking out the inner pot 2 from the main body 1 with a bare hand immediately after cooking can be improved further.

Embodiment 5. FIG.
FIG. 8 is an enlarged cross-sectional view partially showing the flange portion of the inner pot of the rice cooker according to Embodiment 5 of the present invention. In FIG. The description is omitted.
The rice cooker according to Embodiment 5 of the present invention extends to the inner peripheral edge of the upper surface of the ring 30E made of silicon rubber as shown in FIG. The seal part 38 set so as to be thinned is provided, and when the lid is closed, the lid packing 17 made of silicon rubber and the ring 30E made of silicon rubber come into contact with each other, so that the lid body 4 and the inner pot The gap between the two flanges 2a is sealed. The other configuration is the same as that of the first embodiment described above, and has all the functions of the first embodiment.

  In the rice cooker according to Embodiment 5 of the present invention, the gap between the lid 4 and the flange 2a of the inner pot 2 is sealed by contact between the lid packing 17 made of silicon rubber and the ring 30E made of silicon rubber. Since it did in this way, in addition to the function which Embodiment 1 mentioned above has, the effect that adhesiveness improves and a sealing performance improves is acquired.

Embodiment 6. FIG.
FIG. 9 is an enlarged cross-sectional view partially showing the flange portion of the inner pot of the rice cooker according to Embodiment 6 of the present invention. In the drawing, parts corresponding to those of Embodiment 1 described above are denoted by the same reference numerals. The description is omitted.
The rice cooker according to Embodiment 6 of the present invention extends from the base attached to the flange 2a toward the inner peripheral side of the upper surface of the ring 30F made of silicon rubber as shown in FIG. A lip portion 39 is provided in contact with the inner lid 14 of the lid body 4 to seal between the lid body 4 and the flange 2a of the inner hook 2. The other configuration is the same as that of the first embodiment described above, and has all the functions of the first embodiment.

  In the rice cooker according to Embodiment 6 of the present invention, a ring 30F made of silicon rubber is provided with a lip portion 39 that seals between the lid 4 and the flange 2a of the inner pot 2, and also has a sealing function. Therefore, in addition to the functions of the first embodiment, the lid packing 17 of the lid body 4 can be made unnecessary, and the cost can be reduced correspondingly.

  1 Main body, 2 inner hook, 2a flange, 2b hole, 2c annular step, 2d annular recess, 3 exhaust port, 4 lid, 5 steam inlet, 6 steam path, 7 pool recess, 8 return hole, 9 Open / close valve, 10 case separation case, 11 disengagement button, 12 heating coil (heating means), 13 temperature sensor, 14 inner lid, 15 lid heater, 16 heat sink, 17 lid packing, 22 heat shield plate, 30A, 30B, 30C, 30D, 30E, 30F Ring, 31, 34 upper surface, 32, 35 lower surface, 33 connecting portion, 36 bowl-shaped bulging portion, 37 extension portion, 38 sealing portion, 39 lip portion.

Claims (1)

A main body, an inner hook that has a flange at an opening edge, and is detachably accommodated in the main body, a heating means that heats the inner hook, and a lid that covers the upper surface opening of the main body in an openable and closable manner In rice cooker,
The lid body has an annular lid packing made of silicon rubber pressed against the flange side of the inner hook when the lid is closed,
The flange of the inner hook has holes at a plurality of locations in the circumferential direction and is provided with a ring made of silicon rubber.
The ring is
An upper surface covering the flange from above;
A lower surface covering the flange from below;
A connecting portion for connecting the upper surface and the lower surface through the hole;
The inner peripheral edge portion of the top surface, extending to the lid gasket and capable of abutting position, have a set seal portion as the thickness increases toward the ends is reduced,
The seal portion is in contact with the lid gasket in the lid closed, to seal between the flange of the inner pot and the lid with the lid gasket, cooker.

Images