JP2006136396A - Rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice cooker permitting firm attachment of a seal-packing material for sealing the gap between a steam aperture cap and a lid without using a separate member. <P>SOLUTION: The rice cooker comprises the lid 3 for closing an inner pot 2 inside a rice cooker body 1, a steam chamber 4 opened on the outer surface of the lid 3 and communicating with the inside of the inner pot 2, the steam aperture cap 5 which detachably cover the steam chamber 4, and the seal-packing material 6 for sealing the gap between the steam aperture cap 5 and the lid 3. The steam aperture cap 5 has a peripheral wall part 23 facing the inner peripheral surface of the steam chamber 4. The seal-packing material 6 is ring-shaped to be fitted and attached to the end of the peripheral wall part 23. The outer peripheral part 25 of the seal-packing material 6 to closely adhere to the outer surface of the peripheral wall part 23 seals the gap to the inner peripheral surface of the steam chamber 4, and an engagement part 27 engaged with the peripheral wall part 23 is disposed along the whole circumference of the seal-packing material 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a rice cooker including a steam chamber that is open to the outer surface of a lid, and more particularly, to a seal packing mounting structure that seals between a steam hole cap that covers the steam chamber and a lid.

  Conventionally, as this type of rice cooker, for example, as shown in FIG. 9, there is a rice cooker provided with a steam chamber 82 formed of a cylindrical space in an outer lid 81 constituting a lid outer shell (see Patent Document 1). .

  The steam chamber 82 has an open portion 83 on the upper surface, and a valve set 85 including a valve case 84 with an open top is detachably attached to the open portion 83. A steam hole cap 86 is detachably attached to the upper end open portion of the valve case 84. The steam hole cap 86 has a cover part 87 that covers the steam chamber 82 and a peripheral wall part 88 formed on the lower surface of the cover part 87. The peripheral wall portion 88 faces the open edge of the valve case 84 and positions the steam hole cap 86.

  The space between the outer lid 81 and the steam hole cap 86 is sealed by a ring-shaped seal packing 89 press-fitted to the outer peripheral surface of the valve case 84. A lip 90 is formed on the periphery of the upper end of the seal packing 89 so as to be in close contact with the lower surface of the cover portion 87 and the upper surface of the outer lid 81. On the inner peripheral surface of the seal packing 89, protruding portions 91 are arranged at equal intervals in the circumferential direction. Is formed. The seal packing 89 is attached by fitting each protrusion 91 into each receiving port 92 formed in the valve case 84 while being press-fitted into the outer peripheral surface of the valve case 84.

JP 2000-116507 A

  However, in the rice cooker as described in Patent Document 1, since the seal packing 89 is attached to the valve case 84, there is a problem that the cost cannot be reduced by omitting the valve set 85. For this reason, there has been a demand for a new seal packing mounting structure that does not require a separate member such as a valve case.

  Then, the subject of this invention is providing the rice cooker which can attach firmly the seal packing which seals between a steam hole cap and a lid | cover, without using another member.

  In order to solve the above problems, the present invention provides a lid that closes the inner pot in the rice cooker body, a steam chamber that opens to the outer surface of the lid and leads to the inner pot, and steam that is detachably covered in the steam chamber. In the rice cooker comprising a hole cap and a seal packing that seals between the vapor hole cap and the lid, the vapor hole cap has a peripheral wall portion facing the inner peripheral surface of the steam chamber, A seal packing is provided in a ring shape that fits and attaches to the tip of the peripheral wall portion, and the outer peripheral portion of the seal packing that is in close contact with the outer peripheral surface of the peripheral wall portion is between the inner peripheral surface of the steam chamber. The structure characterized by having an engaging part that engages with the peripheral wall part over the entire circumference.

  According to the configuration of the present invention, the steam hole cap has a peripheral wall portion facing the inner peripheral surface of the steam chamber, and the outer peripheral portion that seals the seal packing with the inner peripheral surface of the steam chamber. In addition, the seal packing is directly attached to the peripheral wall portion.

  In this configuration, an outer peripheral portion of the seal packing that is in close contact with the outer peripheral surface of the peripheral wall portion seals between the inner peripheral surface of the steam chamber. Rub around the surface. At this time, if the outer peripheral portion moves, it causes the seal packing to fall off or twist.

  However, in this configuration, since the outer peripheral portion has an engaging portion that engages with the peripheral wall portion over the entire circumference, even if the outer peripheral portion tries to shift, the engaging portion is caused by the adhesion of the outer peripheral portion. Is firmly hooked on the peripheral wall portion, and displacement of the outer peripheral portion is prevented.

  It is sufficient that the engaging portion engages with the peripheral wall portion in a well-balanced manner so as to prevent the outer peripheral portion from being displaced, and does not need to be engaged continuously over the entire periphery. Moreover, what is necessary is just to determine the engagement direction of the said engaging part and the said surrounding wall part so that it may become resistance with respect to the shift | offset | difference movement of the said outer peripheral part.

  Specifically, a concavo-convex portion that is continuous in the circumferential direction is formed on the outer peripheral surface of the peripheral wall portion, and the engaging portion is aligned with the concavo-convex portion on the inner peripheral surface of the outer peripheral portion. The structure formed in can be adopted. Of course, as in the prior art, a plurality of receiving openings that open to the outer peripheral surface are disposed in the peripheral wall portion over the entire periphery, and the engaging portions protrude from the inner peripheral surface of the outer peripheral portion corresponding to the receiving openings. The structure formed in this way can also be adopted.

  As the seal packing, one having an outer peripheral surface of the outer peripheral portion as a seal surface can be used. However, the use of the seal packing having a lip on the outer peripheral portion can reduce a resistance feeling when the vapor hole cap is attached or detached. However, in this case, since the lip is strongly dragged by the inner peripheral surface of the steam chamber, the vicinity of the base of the lip is greatly deformed in the outer peripheral portion, and the outer peripheral portion is likely to be twisted. When the outer peripheral portion is twisted, the engagement portion and the peripheral wall portion are disengaged from each other.

  Therefore, as a preferable configuration of the present invention, a configuration is adopted in which the outer peripheral portion has a lip that seals between the inner peripheral surface of the steam chamber and the lip faces the engagement portion in the inner and outer directions. be able to. According to this configuration, even if the lip is dragged strongly, the vicinity of the base of the lip is firmly supported by the engaging portion, so that twisting of the outer peripheral portion is effectively prevented.

  Here, when the lip is disposed between both ends of the outer peripheral portion in the width direction, a moment load applied to the outer peripheral portion from the lip is reduced. Thereby, twisting of the seal packing can be prevented more reliably. In particular, when the lip is arranged in the middle or near the middle between both ends in the width direction of the outer peripheral portion, in any case when the steam hole cap is attached or detached, the outer peripheral portion is similarly prevented from being twisted, The moment load is most reduced.

  Moreover, what was provided in the cross-sectional groove shape can be used for the said seal packing. Such a seal packing can be attached to the peripheral wall simply by being pressed into the tip of the peripheral wall. Here, the cross-sectional shape of the seal packing may be either a symmetric cross section or an asymmetric cross section.

  Among these, as a preferable configuration of the present invention, a configuration is adopted in which the seal packing is provided in the shape of a concave groove, the outer peripheral portion is formed by the outer groove wall, and the inner groove wall faces the engaging portion in the inner and outer directions. can do. According to this configuration, the outer groove wall and the inner groove wall fasten the peripheral wall portion inward and outward directions, so that the degree of contact between the engagement portion and the peripheral wall portion is increased, and the engagement between the two portions is further released. It becomes difficult.

  As described above, according to the present invention, a rice cooker can be obtained in which the seal packing for sealing between the steam hole cap and the lid can be firmly attached without using another member.

A first embodiment of the present invention will be described below with reference to FIGS.
As shown in FIG. 1 and FIG. 2, the rice cooker according to the first embodiment has a lid 3 that closes the inner pot 2 in the rice cooker body 1, and opens to the outer surface of the lid 3. A steam chamber 4 that communicates with the steam chamber 4, a steam hole cap 5 that detachably covers the steam chamber 4, and a seal packing 6 that seals between the steam hole cap 5 and the lid 3 are provided.

  As shown in FIGS. 1 and 3, the lid 3 includes an outer lid 7 that constitutes an outer shell thereof, and a heat radiating plate 8 that is fixed to the lower surface of the outer lid 7. On the lower surface of the outer lid 7, a mounting portion 9 including an annular wall surrounding the outer periphery of the heat radiating plate 8 is erected. The heat radiating plate 8 has a flat disk portion that covers the inner pot 2. On the outer periphery of the flat disk portion, a lid packing 10 that is in close contact with the flange 2 a of the inner pot 2 and a claw portion of the mounting portion 9. 11 and a screw hole 13 are disposed. Further, an electric heater 14 for keeping the inside of the inner pot 2 is mounted on the upper surface of the heat radiating plate 8. The heat radiating plate 8 is fixed by screwing a screw fastening portion 15 and a screw hole portion 13 formed on the lower surface of the outer lid 7 after the insertion opening 12 is inserted into the claw portion 11.

  When using a lid in which a heat radiating plate is fixed to the lower surface of the outer lid and a conventionally known lid ring member is omitted, like the lid 3, it is necessary to increase the rigidity of the outer lid. Therefore, in the lid 3, the steam chamber 4 is provided by forming a bottomed cylindrical recessed portion on the upper surface of the outer lid 7. The vapor chamber 4 may be provided so as to open to the outer surface of the lid 3 and have an inner peripheral surface, and is not limited to a bottomed cylindrical shape. This steam chamber 4 (recessed portion) improves the bending rigidity of the outer lid 7. In addition, it is preferable to provide the steam chamber 4 with as large a capacity as possible in order to enhance its blow-off prevention performance.

  As shown in FIG. 4, a steam hole 16 communicating with the inner pot 2 is opened on the bottom surface of the steam chamber 4, and a downward annular rib portion 17 surrounding the steam hole 16 is formed on the outer bottom surface of the steam chamber 4. Has been. A steam hole packing 18 is fitted to the annular rib portion 17. Via this steam hole packing 18, a steam outlet 19 and a steam hole 16 that open to the heat radiating plate 8 communicate with each other. For this reason, the steam generated in the inner pot 2 flows into the steam chamber 4 from the steam discharge port 19 through the steam hole 16, and flows out from the steam port 20 opened on the upper surface of the steam hole cap 5.

  As described above, when the steam chamber 4 is composed of a recessed portion formed on the upper surface of the outer lid 7 and the heat radiating plate 8 is fixed to the lower surface of the outer lid 7, the bottom surface of the steam chamber 4 and the heat radiating plate 8 The distance becomes closer. For this reason, when the steam hole 16 is provided with a large diameter, when the user removes the steam hole cap 5 and cleans the steam chamber 4, there is a fear that the finger is put into the steam hole 16 and the heat radiating plate 8 is strongly pressed to be deformed.

  In addition, when the steam holes 16 are provided with a large diameter, excellent exhaustability can be obtained at the time of rice cooking, but at the time of heat retention, the heat radiating plate 8 is easily deprived of heat by the atmosphere, and condensation on the lower surface thereof increases. In particular, when the capacity of the steam chamber 4 is increased, the amount of air in the room increases, so that condensation is more likely to occur. When this condensation falls into the inner pot 2, the rice becomes hot and tasteless.

  Considering these circumstances, the maximum diameter of the vapor hole 16 is preferably 8 mm to 10 mm. As a result, almost no fingers enter the vapor hole 16 and the cooling of the heat radiating plate 8 is reduced, and the necessary exhaustability is ensured.

  In the case where the steam chamber 4 is composed of a recessed portion formed on the upper surface of the outer lid 7 and the heat radiating plate 8 is fixed to the lower surface of the outer lid 7, the heat of the steam in the steam chamber 4 is generated inside the lid 3. Since it is easy to be transmitted to the space, it is desirable to take measures against thermal destruction of electrical components installed in the internal space. However, if a heat insulating material or the like is wound around the steam chamber 4, the cost increases.

  Therefore, in order to insulate between the internal space of the lid 3 and the vapor chamber 4, an air layer surrounding the vapor chamber 4 is provided in the internal space of the lid 3. Specifically, a blocking wall 21 surrounding the steam chamber 4 is formed on the lower surface of the outer lid 7 so as to contact the upper surface of the heat radiating plate 8. Thereby, an air layer closed by the outer lid 7, the blocking wall 21, and the heat radiating plate 8 is provided around the steam chamber 4.

  The steam chamber 4 is detachably covered with a steam hole cap 5. As shown in FIGS. 4 and 5, the steam hole cap 5 includes a cover portion 22 that covers the steam chamber 4 and a peripheral wall portion 23 that faces the inner peripheral surface of the steam chamber 4.

  The cover portion 22 is provided in a disk shape whose upper surface is substantially flush with the outer surface of the outer lid 7, and a steam port 20 is opened near the center thereof. On the lower surface of the cover portion 22, a peripheral wall portion 23 is provided so as to be located inward of the outer periphery of the cover portion 22 and surround the steam port 20. The tip of the peripheral wall portion 23 is provided horizontally or substantially horizontally. In addition, the circumferential rib 24 surrounding the steam port 20 inward of the peripheral wall portion 23 is provided in order to prevent the steam from being rapidly ejected from the steam port 20.

  As shown in FIG. 6, a seal packing 6 provided in a ring shape in a cross-sectional groove shape is fitted to the tip of the peripheral wall portion 23. The outer groove wall portion of the seal packing 6 is an outer peripheral portion 25 that is in close contact with the outer peripheral surface of the peripheral wall portion 23.

  The inner diameter of the seal packing 6 is smaller than the outer diameter of the peripheral wall portion 23, and when the seal packing 6 is fitted to the tip of the peripheral wall portion 23, the seal packing 6 is brought into close contact with the outer peripheral surface of the peripheral wall portion 23 by an elastic tightening force. It is supposed to be.

  The outer peripheral portion 25 has an engaging portion 27 that coincides with the concavo-convex portion 26 formed so as to be continuous in the circumferential direction over the entire outer peripheral surface of the peripheral wall portion 23 over the entire inner peripheral surface. The concavo-convex portion 26 is provided so that the wall surfaces 26a and 26b parallel to the inner and outer directions face each other with the reduced diameter surface 26c interposed therebetween. The outer peripheral portion 25 is in a state of being engaged with each other over the outer peripheral surface of the peripheral wall portion 23 and the entire periphery due to the coincidence of the uneven portion 26 and the engaging portion 27.

  Further, the outer peripheral portion 25 has a lip 28 that seals between the outer peripheral portion 25 and the inner peripheral surface of the steam chamber 4. The lip 28 is provided so as to be continuous in the circumferential direction over the entire outer peripheral surface of the outer peripheral portion 25 in the middle or near the middle between both ends in the width direction of the outer peripheral portion 25 and to face the engaging portion 27 in the inner and outer directions. ing.

  The outer peripheral portion 25 and the lip 28 are provided so that the lip 28 is in close contact with the inner peripheral surface of the steam chamber 4 in a state where the steam hole cap 5 is attached to the steam chamber 4. Thereby, the outer peripheral part 25 seals between the inner peripheral surfaces of the steam chamber 4 by the lip 28. In FIG. 1, the portion of the lip 28 is schematically shown.

  On the other hand, in the seal packing 6, an inner groove wall 29 that is continuous with the outer peripheral portion 25 via the groove bottom is provided to face the engaging portion 27 in the inner and outer directions.

  In the above configuration, when the seal packing 6 is press-fitted until the groove bottom hits the tip of the peripheral wall portion 23 while slightly expanding the diameter of the outer peripheral portion 25, the uneven portion 26 and the engaging portion 27 are connected to each other. Due to the elastic tightening force, it fits naturally and the installation is completed.

  The uneven portion 26 of the peripheral wall portion 23 is provided horizontally or substantially horizontally. As a result, the tip of the peripheral wall portion 23 is provided horizontally or substantially horizontally, and the seal packing 6 is provided so as to be fitted to the tip of the peripheral wall portion 23, so that the seal packing 6 is not attached. Due to the directivity, the mounting work of the seal packing 6 is simplified.

  Moreover, the continuous part of the outer peripheral part 25 and the inner side groove wall 29 is formed in R shape. Thereby, even if the peripheral wall portion 23 is rubbed against the inner peripheral surface of the steam chamber 4 with an inclination, the force easily escapes, so that the outer peripheral portion 25 is more difficult to move.

  Of course, in the present invention, the lid structure is not limited to the lid 3, and the form of the engaging portion 27 can be variously modified. As an example, a second embodiment of the present invention will be described with reference to FIGS. 7 to 8A and 8B. Hereinafter, only differences from the first embodiment will be described, and the same components will be denoted by the same reference numerals.

  As shown in FIG. 7, the outer lid 31 constituting the outer shell of the lid 30 has the steam chamber 4 formed on the outer surface thereof, omitting the blocking wall 21, and a boss at the center or substantially the center of the lower surface of the outer lid 31. The part 32 is formed.

  In the peripheral wall portion 41 of the steam hole cap 40, rectangular receiving ports 42 that are opened in the outer peripheral surface thereof in a side view are disposed over the entire periphery so as to be even in four circumferential directions. On the other hand, on the inner peripheral surface of the outer peripheral portion 51 of the seal packing 50, an engaging portion 52 that matches the receiving port 42 is formed so as to protrude corresponding to each of the receiving ports 42 described above. The engaging portion 52 is press-fitted inward from the inner peripheral surface of the peripheral wall portion 41 in a state where the seal packing 50 is fitted to the tip of the peripheral wall portion 41, and seals the receiving port 42.

  In the second embodiment, when the seal packing 50 is attached, it is necessary to align the engaging portion 52 and the receiving port 42, so that the installation work is troublesome. However, when the lip 28 is provided on the outer peripheral portion 51 so as to face the engaging portion 52 in the inner and outer directions, the outer peripheral portion 51 and the peripheral wall portion 41 are deeply engaged with each other, so that the outer peripheral portion 51 is effectively prevented from being twisted. be able to.

  By the way, the lid 30 has a vapor chamber 4 formed of a recessed portion of the outer lid 31, and a vapor hole cap 40 is detachably covered on the vapor chamber 4, and a seal packing 50 is provided between the vapor hole cap 40 and the outer lid 31. If the cover structure is changed to such an extent that the heat radiating plate 8 is detachable, the outer cover 31 can be used.

  Specifically, the lid 30 can be changed like a lid 60 shown in FIG. That is, the lid packing 10 is mounted on the outer periphery of the heater mounting plate 61 having the electric heater 14 disposed on the upper surface. The heat radiating plate 62 faces the heater mounting plate 61 and is provided so as to contact the upper end of the inner peripheral surface of the inner pot 2. The heater mounting plate 61 and the heat radiating plate 62 are respectively provided with through holes 63 and 64 facing the boss portion 32 and steam discharge ports 65 and 66 facing the steam hole 16.

  The heat mounting plate 61 is caulked to the through hole 63 of the heater mounting plate 61 through the heat sink fixing tool 67. A screwed member with a head is used for the heat sink fixing member 67. A screw hole 68 of the heat sink fixing tool 67 is formed in the boss portion 32, and the heater mounting plate 61 is screwed by the heat sink fixing tool 67.

  A through-hole bushing 71 having an insertion portion 69 that is pushed into the head of the heat-radiating plate fixture 67 and a double collar portion 70 that sandwiches the heat-radiating plate 62 is detachably press-fitted into the through-hole 64 of the heat-radiating plate 62. The through-hole bushing 71 is provided so that it can be pulled out from the head of the heat sink fixing tool 67 together with the heat sink 62.

  As described above, since the boss portion 32 is provided in the outer lid 31 in advance, the heater mounting plate 61 can be firmly fixed to the boss portion 32 with the heat radiating plate fixture 67. Further, since the through-hole bushing 71 that can be pushed into and withdrawn from the heat sink fixing tool 67 is provided in the heat sink 62, the heat sink 62 is detachably attached to the outer lid 31 via the heat sink fixing tool 67. Can do. In this mounted state, the through holes 63 and 64 are sealed against the internal space of the lid 60 by the through hole bushing 71.

  Further, a steam hole bushing 74 having a double collar part 72 that sandwiches the heat radiating plate 62 and a pipe line part 73 that passes through the steam hole packing 33 and the steam discharge ports 65 and 66 is detachable from the steam discharge port 65. Press fit. The steam hole bushing 74 allows the steam discharge ports 65 and 66 to communicate with the internal space of the lid 60 in a sealed state. 8B, instead of the steam hole bushing 74, a flanged pipe member 75 is passed through the steam hole 16 and the steam discharge ports 65 and 66, and fixed to the heat radiating plate 62 with a rivet 76. You can also

  As described above, the lid 30 can be changed to the lid 60 additionally provided with the heat radiating plate 62 so as to be detachable without requiring a major modification of the mold of the outer lid 31 or a new mold.

  In the lid 60, the hole diameter of the steam hole 16 may be slightly increased depending on the outer diameter of the steam hole bushing 74 or the like. In such a case, the sealing surface between the steam hole packing 33 and the heater mounting plate 61 is reduced, and the sealing performance is deteriorated. Therefore, a steam hole packing 33 having an outer diameter lip portion 34 in close contact with the upper surface of the heat radiating plate 8 is employed in advance (see FIG. 7). Thereby, even when the sealing surface with the heater mounting plate 61 is reduced, the outer diameter lip portion 34 has redundancy in the radially outward direction, so that the sealing between the steam hole packing 33 and the heater mounting plate 61 is ensured. Is done.

  In the lid 60, since the steam hole bushing 74 and the like are inserted into the steam hole packing 33, it is necessary to achieve a seal between the steam hole packing 33 and the steam hole bushing 74 and the like. Therefore, in addition to the outer diameter lip part 34, the steam hole packing 33 is previously provided with an inner diameter lip part 35 projecting inwardly on the inner periphery thereof. Thereby, even when the steam hole bushing 74 or the like is inserted into the steam hole packing 33, the inner diameter lip portion 35 has redundancy inward in the radial direction, so that the sealing between the steam hole packing 33 and the steam hole bushing 74 or the like is performed. Is obtained. For this reason, the vapor hole 16 and the heat radiating plate 62 communicate with each other in a sufficiently sealed state with respect to the internal space of the lid 60 (see FIG. 8B).

The vertical side view of the rice cooker which concerns on 1st Embodiment. The whole perspective view which shows the diagonal back view same as the above. The enlarged bottom view which made the left side from the lid center the bottom view of an outer lid in the lid bottom view same as the above. FIG. 2 is an enlarged vertical side view of the steam chamber portion of FIG. 1. The perspective view of the lower surface side of the steam hole cap of the state which attached the seal packing same as the above. The expanded vertical side view of the seal packing part of FIG. The expansion vertical side view of the steam chamber part of the rice cooker which concerns on 2nd Embodiment. (A) The vertical side view of the cover part which changed the heat sink into the attachment or detachment type in the same as the above. (B) An enlarged vertical sectional view of a steam hole portion of an example in which a pipe member is used instead of the steam hole bushing of FIG. The expanded longitudinal cross-sectional view of the steam chamber part of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rice cooker main body 2 Inner pan 2a Eaves part 3 Cover 4 Steam chamber 5 Steam hole cap 6 Seal packing 7 Outer cover 8 Heat sink 9 Placement part 10 Cover packing 11 Claw part 12 Insertion opening 13 Screw hole part 14 Electric heater 15 Screw Stopping portion 16 Steam hole 17 Annular rib portion 18 Steam hole packing 19 Steam discharge port 20 Steam port 21 Blocking wall 22 Cover portion 23 Peripheral wall portion 24 Peripheral rib 25 Outer peripheral portion 26 Concavity and convexity portions 26a, 26b Wall surface 26c Reduced diameter surface 27 Engagement portion 28 Lip 29 Inner groove wall 30 Lid 31 Outer lid 32 Boss part 40 Steam hole cap 41 Peripheral wall part 42 Receiving port 50 Seal packing 51 Outer part 52 Engaging part 60 Lid 61 Heater mounting plate 62 Radiation plate 63, 64 Through holes 65, 66 Steam outlet 67 Heat sink fixing tool 68 Screw hole 69 Insertion part 70 Double collar part 71 Through hole bushing 72 Double collar part 73 Pipe line part 74 Steam hole bushing 75 pipe member 76 rivet 81 outer lid 82 vapor chamber 83 opening 84 valve casing 85 valve set 86 steam holes cap 87 cover portion 88 peripheral wall 89 a ring packing 90 Lip

Claims (3)

  A lid that closes the inner pot in the rice cooker body, a steam chamber that opens to the outer surface of the lid and communicates with the inner pot, a steam hole cap that covers the steam chamber in a detachable manner, the steam hole cap and the lid In the rice cooker provided with a seal packing for sealing between the steam hole cap, the steam hole cap has a peripheral wall portion facing the inner peripheral surface of the steam chamber, and the seal packing is fitted to the tip of the peripheral wall portion The outer peripheral portion of the seal packing that is in close contact with the outer peripheral surface of the peripheral wall seals between the inner peripheral surface of the steam chamber and engages with the peripheral wall. A rice cooker characterized by having an engaging portion over the entire circumference.   The rice cooker according to claim 1, wherein the outer peripheral portion has a lip that seals between the inner peripheral surface of the steam chamber, and the lip faces the engaging portion in the inner and outer directions.   The said seal packing is provided in cross-sectional groove shape, the said outer peripheral part consists of the outer side groove wall, and the inner side groove wall faces the said engaging part in the inner and outer direction. rice cooker.

Images