JP6556321B2 - rice cooker - Google Patents

Description

  The present invention relates to a rice cooker that suppresses spillage of rice balls.

  Conventionally, rice cookers are provided with a separation case that discharges steam in the rice cooker to the outside during rice cooking (see, for example, Patent Document 1). The separation case is composed of a steam port case having an open top surface and a valve mechanism, and a steam port cover provided at the top surface opening of the steam port case. A steam discharge hole is formed at a portion displaced from the position directly above to the side.

  In general, several barriers are provided inside the separation case. This barrier reduces the momentum of the steam or beef that flows into the separation case, prevents the beef from being ejected from the steam discharge hole, and only steam is discharged out of the rice cooker. .

Japanese Patent No. 3549457

However, in the case of the technique disclosed in Patent Document 1, it is necessary to ensure a long flow path from the steam inlet to the steam discharge hole. And when input electric power was enlarged in order to cook delicious rice, it was necessary to ensure a flow path longer.
For this reason, the ratio of the volume occupied by the separation case relative to the product main body is increased, and design restrictions are large. On the other hand, when the separation case is configured to be small, control that is contrary to the deliciousness such as intermittent output of power must be performed.

  This invention is for solving the said subject, and it aims at obtaining the rice cooker by which the blow-off of a rice ball is suppressed.

A rice cooker according to the present invention includes a main body having an inner pot accommodating portion for accommodating an inner pot and a heating means for heating the inner pot, and a hinge connection to the main body to cover an upper portion of the inner pot accommodating portion of the main body. A rice cooker including a lid, and in a state where the inner pot is accommodated in the main body, a seal member having a lip portion that contacts the outer surface of the side wall of the inner hook from the main body, and holds the seal member A retaining ring and an inner case forming a part of the main body, and the lid body is closed and a gap is formed between the main body and the inner case. An opening of the housing portion is formed, the holding ring is located at a lower portion of the inner case, and a vertical position is held inside the inner hook housing portion, and the seal member is disposed outward from the lip portion. Overhang and tension fitted into the retaining ring A projecting portion; and a supported portion that connects between the lip portion and the projecting portion, and the retaining ring includes a recess that accommodates the projecting portion on the upper surface side of the entire circumference of the retaining ring, An inner rib that forms an inner wall of the recess, and the inner rib and the inner case are arranged with a distance in the vertical direction of the main body, and the distance is a dimension in the vertical direction of the overhanging portion. Smaller than the vertical dimension of the supported portion .

  According to the rice cooker according to the present invention, in a state where the inner pot is accommodated in the main body, the sealer is brought into contact with the outer surface of the side wall of the inner pot from the main body, and the lid is closed between the main body and the main body. A gap is formed in With this configuration, the outer surface of the side wall of the upper inner hook comes into contact with the outside air from a location that is accommodated in the main body and contacts the seal member in a state where the lid is closed. Further, the heat generated by the seal member below the inner hook is prevented from escaping upward. For this reason, it is possible to cool the side wall of the upper inner hook from the place where it comes into contact with the seal member by the outside air, and when the bubble of the toy that springs up during heating contacts the inner side of the upper side of the inner pot, Since the foam is cooled and returned to the lower part of the inner pot, it is possible to suppress the spilling of the stick. Furthermore, a holding ring for holding the sealing member is provided, and the sealing member is disposed between the holding ring and the inner case, so that the sealing member can be deformed or detached from the detachable inner hook provided. There is nothing to do. In addition, even when the rice cooker is assembled, the seal member is not deformed, the assembly is easy, the time required for the work is reduced, and the quality of the product can be ensured.

It is a perspective view which shows the rice cooker which concerns on Embodiment 1 of this invention. It is explanatory drawing of the AA cross section of FIG. 1 which shows the rice cooker which concerns on Embodiment 1 of this invention. It is explanatory drawing of the BB cross section of FIG. 1 which shows the rice cooker which concerns on Embodiment 1 of this invention. It is an enlarged view which shows the E section of FIG. 2 of the rice cooker which concerns on Embodiment 1 of this invention. It is an enlarged view which shows the F section of FIG. 3 of the rice cooker which concerns on Embodiment 1 of this invention. It is a perspective view of the state which combined the seal member and holding ring which concern on Embodiment 1 of this invention. It is an enlarged view which shows CC cross section of FIG. It is a perspective view of the seal member concerning Embodiment 1 of the present invention. It is an enlarged view which shows the DD cross section of FIG. It is a perspective view which shows the sealing member which concerns on Embodiment 2 of this invention. It is a perspective view which shows the sealing member which concerns on Embodiment 3 of this invention.

  Below, embodiment of the rice cooker which concerns on this invention is described. In addition, the form of drawing is an example and does not limit this invention. Moreover, what attached | subjected the same code | symbol in each figure is the same, or is equivalent to this, and this is common in the whole text of a specification. Furthermore, in the following drawings, the relationship between the sizes of the constituent members may be different from the actual one.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing a rice cooker 100 according to Embodiment 1 of the present invention. FIG. 2 is an explanatory diagram of the AA cross section of FIG. 1 showing the rice cooker 100 according to Embodiment 1 of the present invention. FIG. 3 is an explanatory diagram of a BB cross section of FIG. 1 showing the rice cooker 100 according to Embodiment 1 of the present invention.

<Overall structure of rice cooker 100>
As shown in FIGS. 1 to 3, the rice cooker 100 according to the first embodiment of the present invention includes a main body 1. In the upper part of the main body 1, an upper opening part of the inner hook accommodating part 15 is formed. The upper opening is opened and closed by a lid 3 that covers the upper portion of the inner hook housing 15 of the main body 1 that is axially connected to the main body 1 by a hinge 2.

<Structure of lid 3>
The lid 3 is always urged in an opening direction by which a top opening is opened by a hinge spring (not shown). The lid 3 is opened and closed by a latch (not shown) and a latch release button 4.

  An inner lid 5 is detachably provided on the lower surface of the lid 3. The inner lid 5 is fixed to a fixed frame 8 to which an annular packing 7 that seals the opening of the inner hook 6 is fixed.

  A heater 9 is provided between the lid 3 and the inner lid 5, and the surface on the inner lid 5 side is covered with a metal plate (not shown). The heater 9 generates heat by resistance heating when supplied with power. The heater 9 is a linear heater placed over the lid 3.

On the upper side of the lid 3 above the inner lid 5, a tooth separation case 10 for separating a tooth mixed in the steam is attached. The separation case 10 is provided with a guide cylinder 11 and an on-off valve 12. The steam that has flowed in from a steam hole (not shown) at the lower end of the guide cylinder 11 is discharged to the outside through the steam separation hole 10 at the top of the lid 3 through the roughly separating case 10. When the heating stops and the internal pressure of the inner pot 6 decreases and the on-off valve 12 opens, the rice bowl is returned to the inner pot 6.
The rice bowl separating case 10 has a function of separating steam and rice bowl generated during rice cooking, guiding the steam to the steam discharge hole 13, and returning the rice bowl to the inner pot 6.

  The lid 3 is provided with a temperature sensor 14. The temperature sensor 14 is disposed between the heater 9 and the separation case 10.

<Inner pot 6 and inner pot accommodating part 15>
The rice cooker 100 includes an inner pot accommodating portion 15 serving as a coil base in the main body 1, and a bottomed cylindrical inner pot 6 into which water, rice and the like are placed is detachably accommodated in the inner pot accommodating portion 15. The The inner pot 6 is made of SUS. The inner pot 6 is cooked by being heated by an electromagnetic induction coil 16 as a heating means disposed around the center portion of the lower surface of the inner pot accommodating portion 15 and at the corners on the outer periphery thereof.

  The outer surface of the inner hook 6 is formed with irregularities by, for example, a process such as blasting or the like that provides irregularities on the surface, or painting.

  When the lid 3 is closed, the inner hook 6 is sealed by pressing the packing 7 provided on the inner lid 5 side against the upper surface of the flange 6a.

  In addition, the inner hook accommodating portion 15 is formed with a through hole 17 at the center of the bottom portion. An inner pot temperature sensor 18 is installed in the through hole 17 so as to be able to appear and retract.

  The inner hook accommodating portion 15 includes an inner case 33 that forms an opening. The inner case 33 constitutes the upper surface of the main body 1 of the rice cooker 100, and the upper surface is provided with a support 19 that supports the inner pot 6 protruding upward.

<Support structure of inner pot 6>
Next, the support structure of the inner hook 6 will be described.
The inner hook 6 is formed with a flange 6a extending radially outward at the top. As shown in FIG. 5, the flange 6 a is placed on a plurality of supports 19 projecting upward at the edge of the upper opening of the inner hook accommodating portion 15 of the main body 1 when accommodated in the inner hook accommodating portion 15. Supported. The plurality of supports 19 are installed in the circumferential direction on the edge of the upper opening. For this reason, the upper part of the inner hook 6 protrudes from the inner hook accommodating part 15 in a state where it is accommodated in the inner hook accommodating part 15 by being supported by the plurality of supports 19. For this reason, an internal space 30 surrounded by the main body 1, the lid 3, and the inner pot 6 is formed in the rice cooker 100.

  A gap 31 is formed between the main body 1 and the lid 3, and the internal space 30 communicates with the external space 32 that spreads outside the rice cooker 100 via the gap 31. For this reason, the upper part of the inner hook 6 protruding from the inner hook accommodating portion 15 of the main body 1 is a gap between the main body 1 and the lid 3 when the outer side of the side wall upper part 6 b of the inner hook 6 is closed. Touch the outside air flowing in from 31. In particular, as shown in FIG. 5, in the inner hook 6, the upper portion of the inner hook 6 is exposed from the inner hook accommodating portion 15 of the main body 1 in a portion not supported by the plurality of supports 19, and the side wall upper portion 6 b of the inner hook 6 is exposed. Of the outside directly touches the outside air flowing from the gap 31 between the main body 1 and the lid 3.

<Seal member 20 and retaining ring 40>
Next, the seal member 20 will be described.
The inner hook accommodating portion 15 includes a seal member 20 that contacts the outer surface of the side wall of the inner hook 6 from the main body 1 in a state where the inner hook 6 is accommodated in the inner hook accommodating portion 15. The seal member 20 is formed of an elastic body made of a soft material having heat resistance such as silicon rubber.

FIG. 4 is an enlarged view showing part E of FIG. 2 of rice cooker 100 according to Embodiment 1 of the present invention. FIG. 5 is an enlarged view showing part F of FIG. 3 of rice cooker 100 according to Embodiment 1 of the present invention. FIG. 6 is a perspective view of a state in which the seal member 20 and the retaining ring 40 according to Embodiment 1 of the present invention are combined. FIG. 7 is an enlarged view showing a CC cross section of FIG. 6.
As shown in FIG. 6, the seal member 20 and the holding ring 40 are ring-shaped, and the seal member 20 and the holding ring 40 are arranged over the entire circumference along the side wall of the inner pot accommodating portion 15.

  As shown in FIGS. 2 and 3, the combination of the seal member 20 and the retaining ring 40 is disposed below the inner case 33 that forms the opening of the inlet of the inner hook accommodating portion 15. In addition, the inner case 33 includes a cylindrical portion 33 a that surrounds a part in which the seal member 20 and the holding ring 40 are combined from the outer peripheral portion. A component in which the seal member 20 and the retaining ring 40 are combined is disposed along the inside of the cylindrical portion 33a. The lip portion 20 a of the seal member 20 protrudes inward from the inner peripheral surface of the holding ring 40, and is arranged so as to protrude into the inner pot accommodating portion 15 in a state where it is incorporated in the rice cooker 100. ing. Moreover, the sealing member 20 is arrange | positioned above the maximum water level line 21 at the time of the maximum rice cooking amount of the inner pot 6. That is, the maximum water level line 21 at the time of maximum cooking rice amount of the inner pot 6 is positioned below the seal member 20 that contacts the outer surface of the side wall of the inner pot 6.

  A heat radiating plate 34 is disposed at the lower part of the component in which the seal member 20 and the retaining ring 40 are combined. The heat radiating plate 34 constitutes an inner side wall portion of the inner pot accommodating portion 15, diffuses heat generated by the heating device, and heats the inner pot accommodating portion 15. In the first embodiment, the heat radiating plate 34 is formed by making a sheet metal into a cylindrical shape. The cylindrical heat radiating plate 34 is formed so that the upper end and the lower end are rounded sheet metal, and the upper end and the lower end are thick in the radial direction of the cylindrical shape. Is given. The upper end portion of the heat radiating plate 34 is disposed directly below the holding ring 40. When assembling the rice cooker 100, components combining the sealing member 20 and the retaining ring 40 are inserted from the lower side of the inner case 33 in FIGS. 2 and 3, and then the sealing member 20 and the retaining ring 40 in FIGS. 2 and 3. The heat radiating plate 34 is inserted from the lower side of the component. With this structure, the heat sink 34 can support the holding ring 40 from below.

  A plurality of locking projections 40 a are provided on the outer peripheral surface of the holding ring 40. In the first embodiment, the two locking protrusions 40a are arranged on the outer peripheral surface of the holding ring 40 as a set, and the distance between the sets of the two locking protrusions 40a is equal to each other. It is arranged at the place. The locking projection 40 a is inserted inside the cylindrical portion 33 a of the inner case 33. The locking protrusion 40 a on the outer peripheral surface of the holding ring 40 is caught in a not-shown recess provided on the inner peripheral surface of the cylindrical portion 33 a of the inner case 33. Thereby, the vertical position of the holding ring 40 with respect to the inner case 33 is determined. It should be noted that the number of the locking projections 40a provided per set and how many sets of the locking projections 40a are provided on the holding ring 40 are not limited to the above-described form.

  As shown in FIG. 7, the seal member 20 is fitted in a recess 40 b provided on the upper surface of the holding ring 40. The retaining ring 40 includes an inner rib 40c and an outer rib 40e. The inner rib 40 c constitutes a wall on the inner peripheral side of the retaining ring 40 of the recess 40 b and constitutes an inner peripheral surface of the retaining ring 40. The outer rib 40e constitutes an outer peripheral wall of the recess 40b and constitutes an outer peripheral surface of the holding ring 40. That is, the recess 40b is formed between the inner rib 40c and the outer rib 40e. The recess 40b includes a protrusion 40d that extends upward from the bottom surface of the recess 40b.

FIG. 8 is a perspective view of the seal member 20 according to Embodiment 1 of the present invention. FIG. 9 is an enlarged view showing a DD cross section of FIG. 8.
As shown in FIG. 9, the seal member 20 has a lip portion 20a in which the inner peripheral end portion hangs downward. The lip portion 20 a has a thin plate shape and extends toward the inner side of the inner hook accommodating portion 15. The thin plate-like lip portion 20 a is inclined from the opening of the inner hook accommodating portion 15 toward the insertion direction of the inner hook 6. In this way, the lip portion 20a hangs downward from the inner peripheral portion of the upper end of the seal member 20 inward in the radial direction. For this reason, when the inner hook 6 is accommodated in the inner hook accommodating portion 15, the upper surface 20aa of the lip portion 20 a comes into contact with the outer surface of the inner hook 6.

  Further, a protruding portion 20b is formed on the outer peripheral side of the seal member 20 with respect to the lip portion 20a. The lip portion 20a and the overhang portion 20b are connected by a supported portion 20c. The supported portion 20c is a portion having substantially the same thickness as the lip portion 20a, and is formed such that the vertical dimension of the rice cooker 100 is smaller than the overhanging portion 20b. A groove 20d is formed on the lower surface of the overhang 20b from the lower surface upward.

  As shown in FIG. 7, the overhanging portion 20 b is fitted in the concave portion 40 b of the holding ring 40. In the first embodiment, the vertical dimension H2 of the projecting portion 20b is the same as the height from the bottom surface of the recess 40b of the outer rib 40e of the retaining ring 40. Further, the height of the inner rib 40c of the holding ring 40 from the bottom surface of the recess 40b is lower than the height of the outer rib 40e by the thickness of the supported portion 20c of the seal member 20. The protrusion 40d of the retaining ring 40 is inserted into the groove 20d provided on the lower surface of the protruding portion 20b of the seal member 20. The depth of the groove 20d is equal to or greater than the height of the protrusion 40d. That is, the shape of the retaining ring 40 is formed so as to follow the shape of the protruding portion 20 b of the seal member 20. By being configured in this way, the seal member 20 does not easily fall off from the state of being fitted in the recess 40b of the holding ring 40. Since the seal member 20 is unlikely to fall off the holding ring 40 during assembly, there is an advantage that work is facilitated.

  As shown in FIG. 5, the supported portion 20 c is located between the lower surface of the inner case 33 and the inner rib 40 c of the holding ring 40. In the first embodiment, the distance between the lower surface of the inner case 33 and the inner rib 40c of the holding ring 40 is a distance L, and the relationship between the distance L and the thickness dimension H1 of the supported portion 20c is L = H1. Moreover, the dimension H2 of the up-down direction in the rice cooker 100 of the overhang | projection part 20b is L <H2. With this configuration, the overhanging portion 20 b is not pulled out from the space formed by the inner case 33 and the concave portion 40 b of the holding ring 40 toward the inner side of the inner hook accommodating portion 15. When the inner hook 6 is inserted into the inner hook housing portion 15 or when the inner hook 6 is pulled out from the inner hook housing portion 15, the lip portion 20a of the seal member 20 is moved upward or downward by sliding with the outer surface of the side wall of the inner hook 6. Pulled downward. Thus, even when a force for pulling the lip portion 20 a is applied, the seal member 20 is difficult to come off between the inner case 33 and the holding ring 40.

  In addition, the thickness dimension H1 of the to-be-supported part 20c may be L <H1 in the state before incorporating in the rice cooker 100. If the seal member 20 is made of an elastic material, even if the seal member 20 is sandwiched between the inner rib 40c of the holding ring 40 and the inner case 33, the seal member 20 is deformed by the elasticity of the material, and L = H1 can do. Since L <H1 in the state before the thickness dimension H1 is incorporated into the rice cooker 100, the supported portion 20c is subjected to a predetermined force between the inner case 33 and the inner rib 40c of the holding ring 40. Can be pinched. With this configuration, the seal member 20 is firmly fixed to the inner side wall portion of the inner hook accommodating portion 15, and can be prevented from dropping and deforming when the inner hook 6 is inserted and removed.

  As shown in FIG. 5, the upper surface 20aa of the lip portion 20a comes into surface contact with the inner hook 6 and is sealed when the inner hook 6 is accommodated in the inner hook accommodating portion 15 of the main body 1. Thereby, the heat which heated the lower part of the inner hook 6 in the inner hook accommodating part 15 is suppressed from escaping above the seal member 20. On the other hand, the side wall upper portion 6 b including the flange 6 a of the inner hook 6 in the inner hook accommodating portion 15 is easily cooled by touching outside air above the seal member 20.

  The sealing member 20 having the lip portion 20a is molded with a molding die subjected to blasting. The upper surface 20aa of the lip portion 20a has a fine uneven shape on the surface. The concavo-convex shape of the upper surface 20aa of the lip portion 20a is matched with the concavo-convex shape formed on the outer surface of the inner hook 6, and the lip portion 20a and the inner hook 6 when the inner hook 6 is accommodated in the inner hook accommodating portion 15 are combined. Reduce sliding resistance. In addition, the uneven | corrugated shape given to upper surface 20aa of the lip | rip part 20a may be given to the sealing member 20 whole.

  As shown in FIG. 9, a plurality of protrusions 20e are formed on the lower surface of the seal member 20 near the tip of the lip portion 20a. The plurality of protrusions 20e are arranged on the ring-shaped lip portion 20a with a uniform interval. When the inner hook 6 accommodated in the inner hook accommodating portion 15 is lifted, the lip portion 20 a is turned over and the lower surface comes into contact with the inner hook 6. At this time, the plurality of protrusions 20e on the lower surface of the lip portion 20a are in point contact with the inner hook 6, the sliding resistance is reduced, and the inner hook 6 can be easily removed from the inner hook accommodating portion 15. .

<Operation of Seal Member 20>
Next, an effect | action at the time of cooking with the rice cooker 100 of the above structures is demonstrated.
When the inner pot 6 containing water and rice is accommodated in the main body 1 of the rice cooker 100, the lid 3 is closed, and the rice cooking switch provided in the operation unit 22 is turned on, the action of the electromagnetic induction coil 16 causes the inner pot 6. Is heated. When the water in the inner pot 6 boils, steam containing a beanbag is generated. At this time, since the internal pressure of the inner hook 6 is increasing, the on-off valve 12 of the separation case 10 is pushed up and closed. For this reason, the steam including the rice bowl is guided into the separation case 10 through the guide tube 11 from the steam hole. The rice separation case 10 separates the steam and rice balls generated during rice cooking and guides the steam to the steam discharge hole 13. When the heating is stopped and the internal pressure of the inner hook 6 is lowered, the on-off valve 12 is lowered and opened by its own weight and the weight of the stomach, and the rice bowl is returned to the inner hook 6.

  On the other hand, the lip portion 20a of the seal member 20 is in contact with the outside of the side wall of the inner hook 6 and protrudes from the inner pot accommodating portion 15 of the main body 1 while being accommodated in the inner hook accommodating portion 15. The outside of the upper part 6 b touches the outside air flowing from the gap 31 between the main body 1 and the lid 3. Further, the heat generated by the seal member 20 below the inner hook 6 is prevented from escaping upward. For this reason, the side wall of the inner hook 6 above the position where it abuts on the seal member 20 can be cooled by the outside air, and the tob bubbles that swelled radially outside the inner pot 6 during the heating are heated in the inner pot 6. When it comes into contact with the inside of the upper side wall, the bubble is cooled and returned to the lower part of the inner hook 6, so that it is possible to suppress spillage of the bed. Therefore, even if the input power or the duration of the input power is long, the spilling of rice balls is suppressed, and delicious rice can be cooked.

  In Embodiment 1, since the seal member 20 can be held in a ring shape by being assembled to the holding ring 40, the seal member 20 is placed at a predetermined position when the rice cooker 100 is assembled. Easy to incorporate into. Further, the seal member 20 is sandwiched between the holding ring 40 and the inner case 33, and the protruding portion 20b having a large vertical dimension is provided on the seal member 20, so that the inner pot 6 is inserted and removed when the rice cooker 100 is used. Even so, it is difficult for the seal member 20 to fall off. With the above structure, since the seal member 20 can use a material that is more easily elastically deformed, the contact between the seal member 20 and the side wall of the inner hook 6 can be improved, and the sealing performance can be further improved. It can also be raised.

Embodiment 2. FIG.
In the second embodiment, the shape of the lip portion 20a of the seal member 20A is different from the above embodiment. Since the other configuration is the same as that of the first embodiment, only the characteristic part will be described.

FIG. 10 is a perspective view showing a seal member 20A according to Embodiment 2 of the present invention.
In the sealing member 20A according to the second embodiment, a plurality of slits 20f are formed in the lip portion 20a. The plurality of slits 20f are equally arranged in the ring-shaped lip portion 20a with a uniform interval.

  As a result, the sliding resistance between the inner hook 6 and the lip portion 20a is reduced, and the inner hook 6 accommodated in the inner hook accommodating portion 15 can be easily taken out.

Embodiment 3 FIG.
In the third embodiment, the shapes of the lip portions 20a1 and 20a2 of the seal member 20B are different from those of the above embodiment. Since the other configuration is the same as that of the first embodiment, only the characteristic part will be described.

FIG. 11 is a perspective view showing a seal member 20B according to Embodiment 3 of the present invention.
In the sealing member 20B according to the third embodiment, a lip portion 20a1 that is divided by forming a slit 20f is disposed so as to be shifted in the vertical direction from an adjacent divided lip portion 20a2. That is, the divided lip portions 20a1 and 20a2 are composed of an upper lip portion 20a1 and a lower lip portion 20a2.

  Thereby, the inner hook 6 is supported by the lip portions 20a1 and 20a2 which are displaced in the vertical direction and are separated when the inner hook 6 is taken in and out, and the inner hook 6 is prevented from being inclined. For this reason, the user can easily take in and out the inner hook 6. Further, sliding resistance between the inner hook 6 and the lip portions 20a1 and 20a2 is reduced, and the inner hook 6 accommodated in the inner hook accommodating portion 15 can be easily taken out.

<Effect>
(1) According to the first to third embodiments described above, the rice cooker 100 includes the main body 1 having the inner pot accommodating portion 15 for accommodating the inner pot 6 and the heating means for heating the inner pot, and the main body 1. And a lid 3 that is coupled by the hinge 2 and covers the upper part of the inner hook accommodating portion 15 of the main body 1. In a state where the inner hook 6 is accommodated in the main body 1, a seal member 20 having a lip portion 20 a that contacts the outer surface of the side wall of the inner hook 6 from the main body 1, a holding ring 40 that holds the seal member 20, and one of the main bodies 1 And an inner case 33 constituting the part. A gap 31 is formed between the lid 3 and the main body 1 in a closed state. The inner case 33 constitutes an opening of the inner hook accommodating portion 15. The holding ring 40 is located at the lower part of the inner case 33, and the vertical position is held inside the inner hook accommodating portion 15. The seal member 20 is held between the holding ring 40 and the inner case 33.
By being comprised in this way, the outer side of the side wall upper part 6b of the inner hook 6 touches outside air in the state accommodated in the main body 1. Further, the heat generated by the seal member 20 below the inner hook 6 is prevented from escaping upward. For this reason, it is possible to cool the side wall of the inner hook 6 above the portion in contact with the seal member 20 with the outside air, and when the bubble of the tobacco that has risen during heating comes into contact with the inside of the upper side wall of the inner pot 6, Since the bubble is cooled and returned to the lower part of the inner pot 6, it is possible to suppress the spill of the bed. Therefore, even if the input power is large or the duration of the input power is long, the spilling of the rice cake is suppressed, and delicious rice can be cooked.

  Even if the input power is increased to cook delicious rice, it is not necessary to secure a long flow path in the separation case 10. For this reason, the ratio of the volume occupied by the separation case 10 with respect to the product main body is small, and design constraints are reduced.

  Further, since the seal member 20 can be held in a ring shape by being assembled to the holding ring 40, it is easy to incorporate the seal member 20 into a predetermined position when the rice cooker 100 is assembled. become. Further, the seal member 20 is sandwiched between the holding ring 40 and the inner case 33, and the overhang portion 20b having a large vertical dimension is provided on the seal member 20, so that the inner pot 6 is inserted and removed when the rice cooker 100 is used. Even so, it is difficult for the seal member 20 to fall off from a predetermined position. Thereby, since the seal member 20 can use a material that is more easily elastically deformed, the seal member 20 can be more easily brought into contact with the side wall of the inner hook 6, and the inner hook 6 below the seal member 20. It is also possible to further improve the sealing performance of the space formed by the side wall and the inner side wall portion of the inner pot accommodating portion 15.

(2) According to the first to third embodiments, the seal member 20 projects outward from the lip portion 20a and connects between the projecting portion 20b fitted into the holding ring 40 and the lip portion 20a and the projecting portion 20b. And a supported portion 20c. The retaining ring 40 includes a recess 40b in which the protruding portion 20b is accommodated on the upper surface side of the entire circumference of the retaining ring 40, and an inner rib 40c that constitutes an inner wall of the recess 40b. The inner rib 40 c and the inner case 33 are arranged with a distance L in the vertical direction of the main body 1. The distance L is smaller than the vertical dimension H2 of the overhanging portion 20b, and is formed in the vertical dimension H1 of the supported portion 20c.
By comprising in this way, in addition to the effect described in said (1), the following effects can be acquired. The supported portion 20 c located between the lip portion 20 a and the overhang portion 20 b is sandwiched between the inner case 33 and the inner rib 40 c of the holding ring 40. Since the distance L between the inner case 33 and the inner rib 40c of the holding ring 40 is smaller than the vertical dimension H2 of the overhanging portion 20b, a load drawn in the inner direction of the inner hook housing portion 15 with respect to the overhanging portion 20b. Even if it is applied, the overhanging portion 20b cannot pass the distance L. For this reason, the sealing member 20 does not fall off from the assembled predetermined position. Therefore, even if the insertion and removal of the inner hook 6 is repeated, the sealing member 20 has a sealing property of the space formed by the side wall of the inner hook 6 and the inner side wall part of the inner hook accommodating portion 15 below the sealing member 20. Can be maintained.

(3) According to the first to third embodiments, the lip portion 20a has a plate shape thinner than the overhang portion 20b, extends toward the inner side of the inner hook accommodating portion 15, and is an opening portion of the inner hook accommodating portion 15. And the inner diameter is smaller than the outer diameter of the outer surface of the side wall of the inner hook 6.
By comprising in this way, in addition to the effect described in said (1) and (2), the following effects can be acquired. The sealing member 20 has an effect that the upper surfaces of the lip portions 20a, 20a1, and 20a2 are in contact with the inner hook 6 accommodated in the inner hook accommodating portion 15 of the main body 1, and the heat generated below the inner hook 6 does not escape upward. Improve. Further, the lip portions 20a, 20a1, and 20a2 hang downward, and the lip portions 20a, 20a1, and 20a2 do not get in the way when the inner hook 6 is accommodated in the inner hook accommodating portion 15 of the main body 1.

(4) According to the first to third embodiments, the concave portion 40b of the retaining ring 40 includes the protruding portion 40d extending upward in the interior. The projecting portion 20b of the seal member 20 includes a groove portion 20d that opens on the lower surface. The protrusion 40d is inserted into the groove 20d.
By comprising in this way, in addition to the effect described in said (1)-(3), the following effects can be acquired. The seal member 20 is fitted into the recess 40b of the holding ring 40. The protrusion 40d is provided on the bottom surface of the recess 40b, and the contact area between the seal member 20 and the holding ring 40 is inserted into the groove 20d of the seal member 20. Will increase. Therefore, the seal member 20 is less likely to come off from the state where it is fitted in the holding ring 40, so that it is difficult to come off easily when the rice cooker 100 is assembled, and the assembly work is facilitated. In addition, when the rice cooker 100 is used, the overhanging portion 20b is detached from the concave portion of the holding ring 40 even if a load is applied to the overhanging portion 20b due to the insertion / extraction of the inner hook 6 to the inside of the inner hook accommodating portion 15. It is difficult, and the sealing member 20 can maintain the assembled state.

(5) According to the first to third embodiments, the inner pot accommodating portion 15 includes the heat radiating plate 34 that radiates heat generated by the heating device toward the inner side of the inner pot accommodating portion 15. The heat radiating plate 34 constitutes an inner side wall portion of the inner hook accommodating portion 15 and is provided at a lower portion of the holding ring 40.
By comprising in this way, in addition to the effect described in said (1)-(4), the following effects can be acquired. Since the holding ring 40 is supported from the lower side by the upper end portion of the heat radiating plate 34, the holding ring 40 and the seal member 20 can hold the vertical position.

(6) According to the first to third embodiments, the outer surface of the side wall of the inner hook 6 protrudes upward from the inner hook accommodating portion 15.
(7) Moreover, the inner hook 6 has the flange 6a extended in radial direction outward at the uppermost part. The main body has a plurality of supports 19 that protrude upward at the edge of the inner hook accommodating portion 15 and support the flange 6a.
By being comprised like these, in addition to the effect described in said (1)-(5), the following effects can be acquired. When the inner hook 6 is housed in the main body 1, the upper side wall 6 b can protrude from the inner hook housing portion 15 of the main body 1. For this reason, the side wall upper part 6b of the inner hook 6 protrudes from the inner hook accommodating part 15 of the main body 1 at a portion not supported by the plurality of supports 19, and the outside of the side wall upper part 6b is exposed. When closed, the outside of the side wall upper portion 6 b of the inner hook 6 comes into contact with the outside air flowing from the gap 31 between the main body 1 and the lid body 3.

(8) According to the first to third embodiments, the maximum water level line 21 at the time of the maximum amount of rice cooking of the inner pot 6 is positioned below the seal member 20 that abuts against the outer surface of the side wall of the inner pot 6.
By comprising in this way, in addition to the effect described in said (1)-(7), the following effects can be acquired. The maximum water level line 21 at the time of maximum cooking rice amount of the inner pot 6 is located below the seal member 20 that contacts the outer surface of the inner pot 6. According to this configuration, water and rice can be heated in a state where heat generated below the inner hook 6 by the seal member 20 does not escape upward.

(9) According to the first to third embodiments, the plurality of protrusions 20e are formed on the lower surface near the tip of the lip portion.
By comprising in this way, in addition to the effect described in said (1)-(8), the following effects can be acquired. A plurality of protrusions 20e were formed on the lower surface near the tips of the lip portions 20a, 20a1, and 20a2. According to this configuration, when the inner hook 6 is taken out, the lip portions 20 a, 20 a 1, 20 a 2 are turned over, and the plurality of protrusions 20 e are in contact with the inner hook 6. For this reason, the lip portions 20a, 20a1, 20a2 and the inner hook 6 are in a point contact state, and the sliding resistance is reduced so that the lip portions 20a1, 20a1, 20a2 are easily taken out. Further, since there is no protrusion 20e on the upper surface 20aa of the lip portions 20a, 20a1, 20a2, when the inner hook 6 is accommodated in the inner hook accommodating portion 15 of the main body 1, the sealing is surely performed and the heat escapes upward. hard.

(10) According to the first to third embodiments, the lip portion 20a has irregularities on the surface.
By being configured in this way, in addition to the effects described in the above (1) to (9), the sliding resistance between the inner hook 6 and the lip portions 20a, 20a1, 20a2 is reduced, and the inner hook The effect that accommodation of 6 becomes easy is acquired.

(11) According to the first to third embodiments, the outer surface of the inner hook 6 has irregularities on the surface.
By being configured in this way, in addition to the effects described in (1) to (10) above, the sliding resistance between the inner hook 6 and the lip portions 20a, 20a1, 20a2 is reduced, and the inner hook 6 can be accommodated easily.

(12) According to the second embodiment, the lip portion 20a is formed with a plurality of slits 20f.
By being configured in this manner, in addition to the effects described in the above (1) to (11), the lip portions 20a1 and 20a2 are easily deformed, and the operation of taking in and out the inner hook 6 is facilitated.

(13) According to the third embodiment, the lip portions 20a1 and 20a2 divided by the slit 20f are formed so as to be shifted in the vertical direction from the adjacent divided lip portions.
By being configured in this way, in addition to the effects described in the above (1) to (12), the lip portions 20a1 and 20a2 divided by the slit 20f are separated into the adjacent divided lip portions 20a1. , 20a2 and shifted in the vertical direction. According to this configuration, the inner hook 6 is supported by the separated lip portions 20a1 and 20a2 and is prevented from tilting while being displaced in the vertical direction when the inner hook 6 is taken in and out. For this reason, the user can easily take in and out the inner hook 6.

  It is also planned from the beginning to combine the configurations of the above embodiments as appropriate. Each embodiment disclosed this time must be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Main body, 2 Hinge, 3 Cover body, 4 Latch release button, 5 Inner lid, 6 Inner hook, 6a Flange, 6b Upper part of side wall, 7 Packing, 8 Fixing frame, 9 Heater, 10 Case separation case, 11 Guide tube, 12 Opening / closing valve, 13 Steam exhaust hole, 14 Temperature sensor, 15 Inner hook housing part, 16 Electromagnetic induction coil, 17 Through hole, 18 Inner hook temperature sensor, 19 Support, 20 Seal member, 20A Seal member, 20B Seal member, 20a Lip part, 20a1 Upper lip part, 20a2 Lower lip part, 20aa Upper surface, 20b Overhang part, 20c Supported part, 20d Groove part, 20e Protrusion, 20f Slit, 21 Maximum water level line, 22 Operation part, 30 Internal space, 31 Gap 32 External space 33 Inner case 33a Cylindrical portion 34 Heat sink 40 Holding ring 40a Retaining projection, 40b recess, 40c inner ribs 40d protruding portion, 40e outer ribs, 100 cookers, H1 dimensions, H2 dimension, L distances.

Claims (14)

A rice cooker comprising: a main body having an inner pot accommodating portion for accommodating an inner pot and a heating means for heating the inner pot; and a lid body that is hinged to the main body and covers the upper portion of the inner pot accommodating portion of the main body. Because
A seal member having a lip portion that comes into contact with an outer surface of a side wall of the inner hook from the main body in a state where the inner hook is accommodated in the main body;
A retaining ring for retaining the seal member;
An inner case constituting a part of the main body,
The lid is
In a closed state, a gap is formed between the main body and
The inner case is
Constituting the opening of the inner hook accommodating portion,
The retaining ring is
Located below the inner case, the vertical position is maintained inside the inner hook accommodating portion,
The sealing member is
Projecting outward from the lip, and projecting into the retaining ring;
A supported portion connecting between the lip portion and the overhang portion,
The retaining ring is
A recess in which the protruding portion is accommodated on the upper surface side of the entire circumference of the retaining ring;
An inner rib constituting an inner wall of the recess,
The inner rib and the inner case are
Arranged with a distance in the vertical direction in the main body,
The distance is
The rice cooker which is smaller than the vertical dimension of the overhanging part and is equal to or larger than the vertical dimension of the supported part . The rice cooker according to claim 1, wherein a plurality of slits are formed in the lip portion. The rice cooker according to claim 2, wherein the lip portion divided by forming the slit is arranged to be shifted in the vertical direction from the adjacent divided lip portion. A rice cooker comprising: a main body having an inner pot accommodating portion for accommodating an inner pot and a heating means for heating the inner pot; and a lid body that is hinged to the main body and covers the upper portion of the inner pot accommodating portion of the main body. Because
A seal member having a lip portion that comes into contact with an outer surface of a side wall of the inner hook from the main body in a state where the inner hook is accommodated in the main body;
A retaining ring for retaining the seal member;
An inner case constituting a part of the main body,
The lid is
In a closed state, a gap is formed between the main body and
The inner case is
Constituting the opening of the inner hook accommodating portion,
The retaining ring is
Located in the lower part of the inner case, the position in the vertical direction is maintained inside the inner hook accommodating portion,
The sealing member is
Held between the retaining ring and the inner case ;
A plurality of slits are formed in the lip portion,
The said lip | rip part by which the said slit was formed and divided | segmented is a rice cooker arrange | positioned and shifted | deviated to the adjacent said lip | rip part and the up-down direction. The sealing member is
Projecting outward from the lip, and projecting into the retaining ring;
A supported portion connecting between the lip portion and the overhang portion,
The retaining ring is
A recess in which the protruding portion is accommodated on the upper surface side of the entire circumference of the retaining ring;
An inner rib constituting an inner wall of the recess,
The inner rib and the inner case are
Arranged with a distance in the vertical direction in the main body,
The distance is
The rice cooker of Claim 4 which is smaller than the dimension of the up-down direction of the said overhang | projection part, and is more than the dimension of the up-down direction of the said supported part. The lip portion is
It is a thin plate and extends toward the inside of the inner pot accommodating part,
The rice cooker according to any one of claims 1 to 3, and 5, wherein the rice cooker is inclined from the opening of the inner pot accommodating portion in the insertion direction of the inner pot. The recess of the retaining ring is
Providing a protrusion that extends upward in the interior,
The protruding portion of the seal member is
Provided with a groove opening on the lower surface,
The protrusion is
The rice cooker of Claim 6 inserted in the said groove part. The inner pot accommodating portion is
A heat radiating plate for radiating the heat generated by the heating device toward the inside of the inner pot housing portion is provided,
The heat sink is
Constituting the inner side wall portion of the inner pot accommodating portion,
It is provided under the retaining ring, cooker according to any one of claims 1-7. The rice cooker according to any one of claims 1 to 8 , wherein the outer surface of the side wall of the inner pot protrudes upward from the inner pot accommodating portion. The inner hook has a flange extending radially outward at the top,
The rice cooker according to any one of claims 1 to 9 , wherein the main body has a plurality of supports that protrude upward at an edge of the inner pot accommodating portion and support the flange. The rice cooker according to any one of claims 1 to 10 , wherein a maximum water level line when the maximum amount of rice cooked by the inner pot is located below the seal member that contacts the outer surface of the side wall of the inner pot. The rice cooker according to any one of claims 1 to 11 , wherein a plurality of protrusions are formed on a lower surface near a tip of the lip portion. The rice cooker according to any one of claims 1 to 12 , wherein the lip portion has irregularities on a surface thereof. The rice cooker according to any one of claims 1 to 13 , wherein an outer surface of the inner pot has irregularities on a surface thereof.

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