JP2013192661A - Steamer and electric rice cooker including the steamer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve engagement force of a steamer that is used with an inner pot, etc., of an electric rice cooker as a water container and is made of an elastic material with high heat resistance, with respect to the water container, and also to allow the steamer to be easily taken out of the container.SOLUTION: A steamer corresponds to a container to be heated by a heating means after pouring water therein and is supported by engagement with an opening in the upper part of the container. The steamer is made of an elastic material with heat resistance. Knobs are formed in an engagement part to be engaged with the opening in the upper part of the container. The knobs facilitate taking-out of the container and also increase engagement force with respect to the opening in the upper part of the container.

Description

  The invention of this application relates to a steamer and an electric rice cooker equipped with a steamer.

  Conventionally, a steamer is generally formed of a rigid material such as a synthetic resin or metal, and is supported in a state where water is introduced and engaged with an upper part of a predetermined container heated by a predetermined heating means. It is designed to be used with the lid on the side.

  And as said predetermined container, the inner pot etc. which are set to the electric rice cooker main body other than the steaming container used on a gas stove, an IH type cooking table, etc. are used as a similar container (for example, (See Patent Document 1).

  By the way, the steamer is considerably hot at the time of use, so it is necessary to be a material having high heat resistance, and the above-mentioned metal one has sufficiently high heat resistance and meets the requirement for the time being.

  However, in the case of a metal, since the heat conductivity is good and the temperature of the metal itself becomes too high, there is a drawback that it is difficult to remove the steamer from the container at the stage of steaming.

  On the other hand, in the case of a steamer made of synthetic resin (for example, made of PP), the temperature does not become as high as that of metal, but because of its low heat resistance, for example, the inner pot of an electric rice cooker that becomes hot in a sealed state, for example When using as a container, there is a risk that the engaging part with the inner pot and other parts will melt.

  Under such circumstances, recently, such steamers and the like have been formed of elastic high heat resistant materials such as elastomer resin and silicon rubber (see, for example, Patent Document 2).

  The structure of the electric rice cooker provided with the steamer and steamer comprised from such a viewpoint is shown, for example in FIGS. 24-26. As shown in FIG. 24, the electric rice cooker includes an inner pot 3, a metal bottomed cylindrical inner case 4 formed so that the inner pot 3 can be arbitrarily set, and the inner case 4. A bottomed cylindrical outer case 1 that is an outer casing that holds the lid, and a lid unit 2 that can be opened and closed at the top of a rice cooker body formed by integrating the outer case 1 and the inner case 4; It is composed of

  In the case of this embodiment, as the inner pot (water storage and heating container) 3, for example, one made of a metal plate having high thermal conductivity is adopted, while cooking the inner pot 3. As the heating means, a heater having a main heater H1 inside is provided above the bottom wall portion 4a of the inner case 4 made of metal and in such a manner as to be in wide contact with the substantially entire surface of the bottom portion 3a of the inner pot 3. A plate HP is provided.

  Further, as a heating means for keeping the inner pot 3 warm, a heat retaining heater H <b> 2 corresponding to the entire circumference of the side portion 3 b of the inner pot 3 is provided on the side wall portion 4 b of the inner case 4. Then, by appropriately driving and controlling the heaters H1 and H2 by the microcomputer control unit, an appropriate rice cooking function and a heat retaining function can be realized.

  The outer case 1 includes, for example, a vertical cover member 1a formed of a synthetic resin material, a synthetic resin shoulder member 11 coupled to an upper end portion of the cover member 1a, and the cover member 1a. And a bottom member 1b made of a synthetic resin integrated with the lower end portion of the inner casing 4 and having a heat insulation and ventilation space portion with a predetermined width between the bottom wall portion 4a of the inner case 4 as a whole. It is comprised by the cylindrical body. A cylindrical heat insulating material 6 is installed on the outer periphery of the inner case 4 in the outer case 1.

  On the other hand, the timer settings for the above rice cooking and warming functions, the selection of rice cooking and warming menus, and the operation settings such as the heating amount, heating pattern, warming temperature, warming time, etc. corresponding to each menu are on the front side of the outer case 1 This is performed by the user via various input switch groups provided on the operation panel unit 20, and the main heater H1 (or) and the heat retaining heater H2 are finally controlled according to the set contents.

  Further, in the central portion of the operation panel unit 20, a liquid crystal display unit 21 for displaying each menu of rice cooking and heat retention, a set heat retention temperature, a set heat retention time, a current time, a remaining time until completion of rice cooking, and other necessary items. Is provided.

  Further, a center sensor storage space portion 5 that is concentrically penetrated in the vertical direction is formed in the bottom wall portion 4a of the inner case 4 and the central portion of the heater plate HP, and the center sensor storage space portion 5 is formed in the center sensor storage space portion 5. A center sensor CS having an inner pot temperature detection sensor (and an inner pot detection switch as necessary) is provided in a state that it can be moved up and down in a vertical direction and is always upwardly biased by a coil spring. .

  On the other hand, reference numeral 2 denotes a lid unit. The lid unit 2 is made of a synthetic resin cover member 2a constituting the container, and a metal provided below the cover member 2a via a steam pipe unit 2b. The heat radiating plate 2d and an inner frame member 2c that supports the heat radiating plate 2d are provided. Further, on the inner side of the outer peripheral edge portion of the heat sink 2d, a packing 2f corresponding to the opening edge portion (flange portion extending in an arc shape in the horizontal direction) 3c of the inner pot 3 is provided. The outer end of the outer peripheral edge of 2d is brought into contact with the upper surface of the inner frame member 2c.

  The lid unit 2 is rotatably attached to the rear end portion of the shoulder member 11 at the upper part of the outer case 1 via a hinge mechanism 8, and a predetermined position of the lid unit 2 is disposed on the open end side thereof. A lock mechanism 9 is provided that engages with and opens and closes the lid unit 2 in the vertical direction.

  On the other hand, reference numeral 10 denotes a steamer. The steamer 10 is formed by molding into a cylindrical body with a bottom as shown in the figure using a material having high heat resistance such as silicon rubber and having elasticity. .

  The basic shape is a cylindrical body shape having a predetermined depth up to the bottom portion 10a and a large opening diameter, and a plurality of holes 12, 12 penetrating vertically in the bottom portion 10a portion. Are open, and the steam in the inner pot 3 can freely enter through the plurality of holes 12, 12.

  On the other hand, the upper end opening edge 10c of the cylindrical side wall 10b has a predetermined width extending in a funnel shape outward in the radial direction so as to overlap with an inner portion of the opening edge 3c extending in the funnel shape of the inner pot 3. The engaging piece.

Japanese Patent Laid-Open No. 2002-125849 Special table 2010-537757

  However, as described above, when the steamer 10 is formed of an elastic high heat resistant material such as silicon rubber, the material is not rigid and has high adhesiveness. There are difficult points.

  In general, the opening edge 10c on the upper end side of the steamer 10 is provided with a flange-like engagement edge, and is engaged with the opening of the container via the engagement edge. Since it becomes soft, the said engaging force falls and the possibility of falling in a container arises.

  In particular, when the inner pot 3 of the electric rice cooker as shown in FIG. 24 is used as a container for water storage and heating, a packing 2 f is generally provided on the lid unit 2 side, and this packing 2 f is an opening edge of the inner pot 3. Since it is necessary to correspond to the part 3c in an airtight manner, in order to avoid interference with the packing 2f at the same part, as is apparent from FIGS. It was small.

  Therefore, the engagement force was lower.

  The present invention has been made in order to solve the above-described problems. A handle portion is formed in an engaging portion that engages with an opening in the upper portion of the container, and the handle portion is used to remove the container from the container. It is an object of the present invention to provide an electric rice cooker equipped with a steamer and a steamer that does not have the same problem by making the engagement force with respect to the opening of the upper part of the container easier.

  In order to achieve the above object, the present invention is configured with the following problem solving means.

(1) Invention of Claim 1 The steamer of this invention is a steamer which corresponds to the container which puts water and is heated by a heating means, and is engaged and supported by the opening part of the said container, Comprising: A handle portion is formed in the engaging portion that engages with the opening at the upper portion of the container, and the handle portion facilitates removal from the container, and the upper portion of the container. It is characterized in that the engagement force with respect to the opening is increased.

  According to such a configuration, since the handle can be taken out from the container, it can be taken out from the container even when the steamer is formed of a sticky high heat resistant elastic material such as silicon rubber. Becomes easier.

  In addition, since the handle portion increases the engagement force with the container opening, the engagement state with the container is ensured, and the steamer does not fall into the container even when the food is heavy. .

  Furthermore, since it is an elastic material, as long as its thickness is reduced, interference with the packing on the lid side does not have to be a problem.

(2) Invention of Claim 2 The problem-solving means of the present invention is a steamer that contains water, corresponds to a container heated by the heating means, and is supported by being engaged with an opening in the upper part of the container, It is made of a heat-resistant elastic material, and a ring member that can be contracted and expanded is attached to the elastic material, and the engagement force with respect to the container is increased by the ring member.

  According to such a configuration, since the steamer is made of a heat-resistant heat insulating material such as silicon rubber, it can be used sufficiently even when an inner pot of an electric rice cooker that becomes high temperature is used as a container, for example. Will be able to.

  Further, even when used in such a high temperature state, the ring member can be used to exert an expanding force on the container, so that a stable and reliable engagement force can be realized, and the engagement with the container can be realized. The combined state is also ensured, and the steamer does not fall into the container even when the food is heavy.

  As a result, since the width of polymerization at the opening of the container can be reduced, it is easy to avoid interference with the lid side packing.

(3) Invention of Claim 3 The problem-solving means of the present invention is a steamer that is filled with water, corresponds to a container heated by the heating means, and is supported by being engaged with an opening in the upper part of the container, A seal in the opening at the upper part of the container is made by an outer peripheral part of the lid that covers the opening at the upper part of the container coming into contact with the engaging part that is made of an elastic material having heat resistance and engages with the opening at the upper part of the container. It is characterized by improving the performance.

  According to such a structure, since the steamer is made of a heat-resistant elastic material such as silicon rubber, it can be sufficiently used even when, for example, an inner pot of an electric rice cooker is used as a container. .

  In addition, when the container has a lid, the sealing property between the lid and the container becomes a problem, but when the engaging portion on the upper end side of the steamer is formed of an elastic heat-resistant material as described above, The adhesion between the container and the container is improved, and the sealing performance is also improved.

(4) Invention of Claim 4 In the case of this invention, the structure of the steamer of the said Claim 1, 2 or 3 is employ | adopted in the electric rice cooker.

  In the case of an electric rice cooker, the temperature of the inner pot portion which is a container is considerably high, and a high sealing property between the lid and the inner pot is required.

  For this reason, the steamer of the structure of the said 1st, 2nd, or 3rd invention becomes especially effective.

  As a result, according to the present invention, it is possible to provide a steamer that has high heat resistance and high engagement force with respect to the container, and can be easily applied to an electric rice cooker.

It is sectional drawing which shows the structure of the electric rice cooker main body comprised using the steamer which concerns on Embodiment 1 of this invention, and the same steamer. It is a top view which shows the structure of the principal part in the same steamer. It is an expanded sectional view which shows the structure of the principal part in the same steamer. It is an expanded sectional view which shows the structure of the other principal part in the same steamer. It is sectional drawing which shows the structure of the electric rice cooker main body comprised using the steamer which concerns on Embodiment 2 of this invention, and the same steamer. It is an expanded sectional view which shows the structure of the principal part which removed the ring member in the same steamer. It is an expanded sectional view which shows the structure of the principal part which fitted the ring member in the same steamer. It is a top view in the 1st state (engagement force action state) which shows the structure of the principal part in the same steamer. It is a top view in the 2nd state (engagement force cancellation | release state) which shows the structure of the principal part in the same steamer. It is sectional drawing which shows the structure of the electric rice cooker main body comprised using the steamer which concerns on Embodiment 3 of this invention, and the same steamer. It is an expanded sectional view which shows the structure of the principal part in the same steamer. It is sectional drawing which shows the structure of the pot part in an electric rice cooker comprised using the steamer which concerns on Embodiment 4 of this invention, and the same steamer. It is sectional drawing which shows the structure of the pot part in an electric rice cooker comprised using the steamer which concerns on Embodiment 5 of this invention, and the same steamer. It is sectional drawing which shows the structure of the pot part in an electric rice cooker comprised using the steamer which concerns on Embodiment 6 of this invention, and the same steamer. It is sectional drawing which shows the structure at the time of the engagement with respect to the inner pot of the steamer for electric rice cookers which concerns on Embodiment 7 of this invention. It is sectional drawing which shows the structure in the state taken out from the inner pot of the same steamer. It is sectional drawing which shows the structure at the time of the engagement with respect to the inner pot of the steamer for electric rice cookers which concerns on Embodiment 8 of this invention. It is sectional drawing which shows the structure in the state taken out from the inner pot of the same steamer. It is sectional drawing which shows the structure at the time of the engagement with respect to the inner pot of the steamer for electric rice cookers which concerns on Embodiment 9 of this invention. It is sectional drawing which shows the structure in the state taken out from the inner pot of the same steamer. It is sectional drawing which shows the structure at the time of the engagement with respect to the inner pot of the steamer for electric rice cookers which concerns on Embodiment 10 of this invention. It is sectional drawing which shows the structure at the time of the engagement with the inner pot using the engagement container of the steamer for electric rice cookers which concerns on Embodiment 11 of this invention. It is a perspective view which shows the structure in the state removed from the inner pot and engagement container of the steaming plate part of the same steamer. It is sectional drawing which shows the structure of the electric rice cooker main body comprised using the steamer which concerns on a prior art example, and the same steamer. It is sectional drawing which shows the structure of the inner pot part of the electric rice cooker comprised using the steamer which concerns on a prior art example, and the same steamer. It is sectional drawing which shows the structure in the state taken out from the inner pot of the same steamer.

<Embodiment 1>
1-4 has each shown the structure of the electric rice cooker comprised by applying the steamer which concerns on Embodiment 1 of this invention, and the same steamer.

(Configuration of electric rice cooker)
First, the electric rice cooker to which the steamer according to Embodiment 1 of the present invention is applied is an inner pot 3 and a metal bottomed cylindrical inner case 4 formed so that the inner pot 3 can be arbitrarily set. And a bottomed cylindrical outer case 1 that is an outer casing for holding the inner case 4 and an upper portion of the rice cooker body formed by integrating the outer case 1 and the inner case 4 so as to be openable and closable. The lid unit 2 is formed.

  In the case of this embodiment, the inner pot (water storage and heating container) 3 is made of, for example, a metal plate having high thermal conductivity, while the inner pot 3 is cooked with rice. As a heating means, there is provided a heater plate HP having a main heater H1 inside provided on the bottom part 4a of the inner case 4 made of metal and in contact with the substantially entire surface of the bottom part 3a of the inner pot 3. Is provided.

  In addition, as a heating means for keeping the inner pot 3 warm, a heat-retaining heater H <b> 2 corresponding to the entire circumference of the side part 3 b of the inner pot 3 is provided at the side wall 4 b portion of the inner case 4. Then, by appropriately driving and controlling the heaters H1 and H2 by the microcomputer control unit, an appropriate rice cooking function and a heat retaining function can be realized.

  The outer case 1 includes, for example, a vertical cover member 1a formed of a synthetic resin material, a synthetic resin shoulder member 11 coupled to an upper end portion of the cover member 1a, and the cover member 1a. And a bottom member 1b made of a synthetic resin integrated with the lower end portion of the inner casing 4 and having a heat insulation and ventilation space portion with a predetermined width between the bottom wall portion 4a of the inner case 4 as a whole. It is comprised by the cylindrical body. A cylindrical heat insulating material 6 is installed on the outer periphery of the inner case 4 in the outer case 1.

  On the other hand, the timer settings for the above rice cooking and warming functions, the selection of rice cooking and warming menus, and the operation settings such as the heating amount, heating pattern, warming temperature, warming time, etc. corresponding to each menu are on the front side of the outer case 1 This is performed by the user via various input switch groups provided on the operation panel unit 20, and the main heater H1 (or) and the heat retaining heater H2 are finally controlled according to the set contents.

  Further, in the central portion of the operation panel unit 20, a liquid crystal display unit 21 for displaying each menu of rice cooking and heat retention, a set heat retention temperature, a set heat retention time, a current time, a remaining time until completion of rice cooking, and other necessary items. Is provided.

  Further, a center sensor storage space portion 5 that is concentrically penetrated in the vertical direction is formed in the bottom wall portion 4a of the inner case 4 and the central portion of the heater plate HP, and the center sensor storage space portion 5 is formed in the center sensor storage space portion 5. A center sensor CS having an inner pot temperature detection sensor (and an inner pot detection switch as necessary) is provided in a state that it can be moved up and down in a vertical direction and is always upwardly biased by a coil spring. .

  On the other hand, reference numeral 2 denotes a lid unit. The lid unit 2 includes a synthetic resin cover member 2a constituting the container body, and a steam pipe unit 2b and an inner frame member 2c below the cover member 2a. It is provided with a metal heat dissipating plate 2d provided. Further, on the inner side of the inner frame member 2c at the outer peripheral edge of the heat sink 2d, a packing 2f corresponding to the upper surface of the opening edge portion (flange portion extending in the horizontal direction) 3c of the inner pot 3 is provided. The outer end of the outer peripheral edge of the heat radiating plate 2d is brought into contact with the upper surface of the inner frame member 2c.

  The lid unit 2 is rotatably attached to the rear end portion of the shoulder member 11 at the upper part of the outer case 1 via a hinge mechanism 8, and a predetermined position of the lid unit 2 is disposed on the open end side thereof. A lock mechanism 9 is provided that engages with and opens and closes the lid unit 2 in the vertical direction.

(Structure of steamer)
On the other hand, what is indicated by reference numeral 10 in FIGS. 1 to 4 is a steamer. This steamer 10 is made of a material having high heat resistance such as silicon rubber and having elasticity as shown in the figure. It is formed by molding into a bottom cylindrical body.

  The basic shape is a cylindrical body shape having a predetermined depth up to the bottom portion 10a similar to the conventional one (FIGS. 24 to 26) already described and having a large diameter at the upper end side opening. There are a plurality of holes 12, 12,... Penetrating up and down in the bottom 10a portion, and the steam in the inner pot 3 freely enters through the holes 12, 12,. It is like that.

  On the other hand, as shown in FIG. 3, for example, the upper end opening edge 10c of the cylindrical side wall 10b has an opening that opens straight upward, while the outer pot has the inner pot on the outer peripheral side. The engagement pieces 10e having a predetermined width extending in a funnel shape outward in the radial direction so as to overlap with the upper surface of the opening edge 3c extending in the shape of three funnels are separately provided at a predetermined interval 13.

  Further, as shown in FIGS. 2 and 4, for example, as shown in FIGS. 2 and 4, the engagement piece 10e for the inner pot 3 is provided with handle portions 10f, 10f,. .

  In the case of this embodiment, the handle portions 10f, 10f,... Cover the outer end of the opening edge 3c of the inner pot 3, for example, as shown in FIG. Engaged and engaged with the outer edge of the edge portion 3c below a predetermined dimension, thereby maintaining a much more reliable engagement force than the conventional one shown in FIGS. It can be done.

  In the case of this embodiment, the engagement piece 10e with respect to the inner pot 3 has a reverse U-shaped cross section through a connecting portion 10d extending horizontally from the side wall of the steamer 10 with a predetermined width radially outward. Since it is provided in the shape of a letter, the elastic thrust rigidity outward in the radial direction by the connecting portion 10d acts on the inner peripheral wall surface of the inner pot 3, and a more stable engagement force can be realized. Compared to the conventional structure (FIGS. 24 and 25) in which the entire 10b may come into contact with the inner peripheral wall surface of the inner pot 3 (FIGS. 24 and 25), the friction force at the time of taking out is small and smoother taking out In addition to being).

  According to such a configuration, since the steamer 10 is made of a heat-resistant elastic material such as silicone rubber, for example, even when the inner pot 3 of the electric rice cooker that becomes high temperature as a container is used. It becomes possible to use it sufficiently.

  Moreover, according to such a structure, since it can take out from the inner pot 3 which is a container with the handle parts 10f, 10f .. which are wider than the engaging piece 10e, for example, an adhesive such as silicon rubber Even when the steamer 10 is formed of an elastic material having high heat resistance, it can be easily taken out from the inner pot 3 as a container.

  Further, since the handle portions 10f, 10f,... Greatly increase the engaging force with respect to the opening edge 3c of the inner pot 3, which is a container, the engaged state with respect to the inner pot 3 is also ensured, for example, FIG. As shown in FIG. 26, the steamer 10 does not fall into the inner pot 3 even when the dish A or the like is provided and the food A is heavy.

  Furthermore, since the entire steamer 10 is made of an elastic material such as silicon rubber, the interference with the packing 2f on the lid unit 2 side does not have to be a problem as long as the thickness of the engagement piece 10e is reduced. Become.

  Therefore, the sealing performance is improved and the steaming efficiency is improved.

  Moreover, when it does in that way, it is not necessary to enlarge the clearance gap between the cover unit 2 and the rice cooker main body side.

<Embodiment 2>
Next, FIGS. 5-9 has shown the structure of the electric rice cooker comprised by applying the steamer which concerns on Embodiment 2 of this invention, and the same steamer.

  In this embodiment, instead of the structure for increasing the engaging force by the handle portions 10f, 10f,... Of the above-described first embodiment, the opening edge portion 10c portion of the steamer 10 is pressed against the inner peripheral wall surface of the inner pot 3. A metal ring member 15 for applying a force is provided to increase the engaging force with respect to the inner pot 3.

  Also in this embodiment, the configuration of the electric rice cooker main body is exactly the same as the configuration of the electric rice cooker main body of the first embodiment described above, and only the configuration around the opening edge 10c of the steamer 10 is different. .

  That is, in the steamer 10 of this embodiment, the engagement piece 10h that engages with the opening edge 3c of the inner pot 3 is provided at a predetermined interval on the outer peripheral side of the opening edge 10c. The engagement width to the outside is small, and a width is left on the upper surface of the opening edge 3c of the inner pot 3 so that the seal packing 2f on the lid unit 2 side directly contacts.

  Thereby, even when the lid unit 2 is closed, the gap between the lid unit 2 and the inner case 4 and the outer case 1 of the electric rice cooker body is not enlarged at all.

  However, the connecting portion 10g portion between the engaging piece 10h and the side wall portion 10b has a width of a predetermined dimension or more in the vertical direction and is formed with a thick portion, and inside the thick connecting portion 10g. Is provided with a ring member fitting groove 14 having a predetermined depth over the entire circumferential direction.

  In the ring member fitting groove 14, for example, a ring having a high spring coefficient in which U-shaped handle portions (knob portions) 15b, 15b are formed at both ends in the radial direction as shown in FIGS. The ring portion 15a portion of the member 15 is fitted as shown in FIGS. 5 and 7 with an expanding biasing force in the direction of increasing the diameter.

  The urging force in the direction of expanding the diameter of the ring portion 15a is deformed (curved) so that the U-shaped handle portions 15b and 15b expand in both the left and right directions as indicated by arrows in FIG. Caused by

  Therefore, in the state of FIGS. 7 and 8 in which the energizing force in the expanding direction is generated, the connecting portion 10g (and the engaging piece 10h portion) that is wide in the up-down direction is moved into the inner pot 3 by the ring member 15. It is strongly pressed against the peripheral wall surface and is firmly engaged with the inner pot 3.

  As a result, even when a heavy object to be cooked is stored in the steamer 10, it does not slip down downward.

  On the other hand, when the steamer 10 is taken out after cooking is finished, for example, as shown by arrows in FIG. 9, the ring portions 15a are formed by shrinking both side portions of the U-shaped handle portions 15b, 15b inward. Reduce the diameter. Then, since the pressure contact force of the ring member 15 with respect to the inner peripheral wall surface of the inner pot 3 described above decreases, it can be smoothly taken out by lifting it upward using the left and right handle portions 15b and 15b.

  Even with such a configuration, it is possible to obtain substantially the same operational effects as those of the first embodiment.

<Embodiment 3>
Next, FIG.10 and FIG.11 has shown the structure of the electric rice cooker comprised by applying the steamer which concerns on Embodiment 3 of this invention, and the same steamer.

  In this embodiment, for example, the inner pot 30 is a clay pot, while an electromagnetic induction heating means is employed as a heating means for the inner pot 30, and a radius is formed on the outer peripheral side of the opening edge 10 c of the steamer 10 described above. A ring-shaped thick portion 10k that is thicker toward the outside in the direction is formed, and the first sealing annular rib 10j having a small projecting dimension that presses against the inner peripheral wall surface of the inner pot 30 at the lower portion on the outer peripheral surface side. Also, a wide engagement piece 10m that is superposed over the entire width direction on the opening edge 30c of the inner pot 30 is integrally provided at the upper end.

  When the inner pot 30 is a clay pot as in this embodiment, since the clay pot is a pottery, mass production of products with the same accuracy is difficult, and variations in dimensional tolerances inevitably occur.

  Therefore, when the thick engagement piece 10m is stacked on the opening edge 30c having a relatively flat and radially wide width of the inner pot 30 as described above, when the lid unit 2 is closed, the lid and It is also assumed that a large gap is generated between the main body and that the gap is fluctuated due to the tolerance variation.

  For this reason, the engaging piece 10m is formed as thin as possible within a range that absorbs such tolerance variation and does not cause variation in the gap when the lid is closed. Further, in the case of this embodiment, the outer peripheral side predetermined width portion 10n of the engaging piece 10m extends slightly above the inner annular pan 30 and higher than the high annular portion, and this 10n portion is held when the steamer is taken out. It can be used as a handpiece.

  Then, the engagement piece 10m portion has a cross-sectional shape that is attached to the packing attachment member 23 portion inside the lid unit inner frame member 2c when the lid unit 2 is closed, for example, as shown in FIG. A cylindrical packing 2f is superposed and pressure-bonded so that a high sealing performance when the lid unit 2 is closed is maintained.

  In this case, the packing 2f is composed of a fitting portion 22a having a U-shaped cross section that is fitted and fixed around the packing mounting member 23 on the lid unit 2 side, and the above-described sealing portion 22b having a U-shaped cross section. ing.

  On the other hand, for the bottom 10a side outer peripheral surface of the steamer 10, a flange-like second seal extending radially outward via reinforcing ribs 10r, 10r,... Having a vertical wall structure connected to the upper thick portion 10k. An annular rib 10i (having an outer diameter larger than the inner diameter of the inner pot 3) is provided, and is pressed against the inner peripheral wall surface of the side wall 3b of the inner pot 3 with a predetermined pressing force. As a result, the engagement force is increased, and the first rib 10j and the steam from the lower side of the bottom 10a are securely sealed so as not to leak upward from the periphery of the steamer 10. Thereby, the sealing performance of the steam is improved and the steaming efficiency is also improved.

  Reinforcing ribs 10r, 10r,... Of a plurality of vertical wall structures provided on the outer peripheral surface of the side wall 10b of the steamer 10 at a predetermined interval increase the rigidity of the steamer 10 main body, a stable shape, the inner pot 3 This contributes to maintaining the engaging force with respect to.

  In this embodiment, the electromagnetic induction heating method is adopted as the heating means for the inner pot 30 as described above, and the outer peripheral surface of the bottom wall portion 30a of the inner pot 30 that is the earthen pot and the bottom First and second induction heating elements (not shown) made of metal, such as silver paste, which are capable of self-heating by an eddy current induced therein, are individually attached to the wall 30a.

  That is, the electric rice cooker includes an inner pot 30 having the same configuration, a dish-shaped bottom wall portion 40a made of a lower-side synthetic resin, and an outer peripheral side of the bottom wall portion formed so that the inner pot 30 can be arbitrarily set. An inner case (protective frame) 40 including a side portion 40b and an upper side cylindrical side wall portion 40c, a bottomed cylindrical outer case 1 that is an outer casing for holding the inner case 40, the outer case 1 and the above It is comprised from the cover unit 2 provided in the upper part of the rice cooker main body formed integrally with the inner case 40 so that opening and closing is possible.

  A coil cover is provided on the lower side of the bottom wall portion 40a of the inner case 40, a ferrite core is disposed on the lower portion thereof, and the lower surface side and side of the bottom wall portion 30a of the inner pan 30 are disposed on the upper portion thereof. Corresponding to each induction heating element position on the curved surface side, first and second sets of work coils C1 and C2 in which litz wires are concentrically wound are provided, so An eddy current is induced in the first and second induction heating elements of the pot 30 to heat the inner pot 30.

  The dish-shaped bottom wall portion 40a of the inner case 40 is formed with a sensor portion fitting port of the center sensor CS at the center portion, and a donut-shaped heat shield 50 is provided on the outer peripheral side upper surface of the sensor portion fitting port. It has been. Further, a flange-shaped stepped portion projecting outward in the predetermined width radial direction is provided on the upper end side of the outer peripheral side portion 40b, and the lower end side of the upper cylindrical side wall portion 40c is engaged and mounted on this stepped portion. Is placed.

  On the other hand, the upper end of the upper side cylindrical side wall 40c is connected and fixed to the shoulder member 11 at the upper end of the rice cooker main body via an inner frame member.

  According to such a configuration, since the steamer 10 is made of a heat-resistant elastic material such as silicon rubber, for example, it is sufficient even when an inner pot 30 made of a clay pot that is particularly hot as a container is used. Will be able to be used.

  Moreover, according to such a structure, since it can take out from the inner pot 30 which is a container with the handle part 10n part outside the said engagement piece 10m, for example, it has high adhesiveness, such as a silicone rubber. Even when the steamer 10 is formed of a heat-resistant elastic material, it can be easily taken out from the inner pot 30 as a container.

  Further, since the engagement piece 10m and the handle portion 10n greatly increase the engagement force with respect to the opening edge 30c of the inner pot 30 which is a container, the engagement state with respect to the inner pot 30 is also ensured, for example, FIG. As shown in FIG. 26, the steamer 10 does not fall into the inner pot 30 even when the dish A or the like is provided and the cooking object A is heavy.

  Furthermore, since the entire steamer 10 is made of an elastic material such as silicon rubber, there is a problem of interference with the packing 2f on the lid unit 2 side as long as the thickness of the engaging piece 10m and the handle portion 10n is reduced. You do n’t have to.

  Therefore, the sealing performance is improved and the steaming efficiency is improved. As a result, the gap between the lid unit 2 and the rice cooker body can be small.

  Furthermore, since the first and second annular annular ribs 10j and 10i are provided on the upper and lower ends of the side wall 10b of the steamer 10, the sealing performance with the inner peripheral wall surface of the inner pot 30 is high, and the steaming efficiency is high. Will also improve.

<Embodiment 4>
Next, FIG. 12 has shown the structure of the inner pot part of the electric rice cooker comprised by applying the steamer which concerns on Embodiment 4 of this invention, and the same steamer.

  In this embodiment, the basic configuration is substantially the same as the steamer 10 of the third embodiment, but the outer peripheral portion of the opening edge portion 10c of the steamer 10 is not the thick portion 10k but the step portion 10s. By doing so, the outer peripheral surface side is brought into pressure contact with the inner peripheral surface of the opening edge portion 3c of the metal inner pot 3, and the rib 10i for increasing the sealing and engaging force is provided on the lower side of the side wall portion 10b. .

  Also in this case, similarly to the case of the third embodiment, the engagement piece 10m (and the wide portion 10n serving as the handle portion) is pressed and securely engaged by the packing 2f on the lid unit 2 side, and It is designed to be sealed.

  In this case, in the drawing, the thickness of the entire inner pot 3 is expressed as thin as a metal pot, but the inner pot 3 may be either an earthen pot or a metal pot.

<Embodiment 5>
Next, FIG. 13 has shown the structure of the inner pot part of the electric rice cooker comprised by applying the steamer which concerns on Embodiment 5 of this invention, and the same steamer.

  In this embodiment, the handle portion 10n of the above-described fourth embodiment is fitted so as to cover the lower side of the opening edge 3c of the inner pot 3 in the same manner as in the above-described first embodiment. The engagement force is increased.

  Other configurations are the same as those of the fourth embodiment.

<Embodiment 6>
Next, FIG. 14 has shown the structure of the inner pot part of the electric rice cooker comprised by applying the steamer which concerns on Embodiment 6 of this invention, and the same steamer.

  In this embodiment, for example, the entire steamer 10 having the handle 10n having the same structure as that of the fourth embodiment is formed of an inelastic material (for example, PP), thereby improving the engagement force. In this case, only the sealing rib 10i that is in contact with the high temperature portion on the lower side of the inner pot 3 is constituted by an elastic member such as silicon rubber having high heat resistance and high sealing performance and is separately fixed. It is what.

  According to such a configuration, all of rigidity, engagement force, heat resistance, and sealability can be achieved.

<Embodiment 7>
Next, FIG.15 and FIG.16 has shown the structure of the steamer (steamer part of the electric rice cooker provided with the steamer) which concerns on Embodiment 7 of this invention.

  In the case of the steamer 10 as in the present case, for example, as shown in FIG. 25, the steamer 10 is hung in the inner pot 3 of the electric rice cooker containing the water W as described above, and heated and boiled. When the cooking is completed, the steamer 10 is taken out and placed on the table or the cooking table T as shown in FIG.

  However, in this case, for example, as shown in the example of FIG. 26, the cooking object A is a fish and steamed and cooked in a state of being placed on the plate B to obtain the broth C. Thus, even when placed on a table or the like, the depth of the steamer 10 is considerably deep, and it is hot in the removed state, so that it cannot be easily removed by hand while it is placed on the plate B. At that time, there was a problem of spilling the broth.

  This embodiment is configured to solve such a problem, and the engagement container 10A portion that engages the steamer 10 with the opening edge 3c portion of the inner pot 3 of the electric rice cooker, and the engagement When the steamer 10 is suspended from the inner pot 3 by being engaged with the opening 10y of the bottom 10a of the combined container 10A and placed on the table or the cooking table T, the portion A to be cooked is the engaging container. It consists of two types of component parts, the dish-shaped steaming stand 10B part which comes to be located in the upper end opening edge part 10c part of 10A.

  A cylindrical leg portion 10x is extended downward by a predetermined length on the lower surface side of the dish-shaped steaming table 10B, and the steamer 10 is taken out and placed on the table or the cooking table T as described above. Sometimes, it is separated upward from the opening 10y of the engaging container 10A bottom 10a and is positioned at the opening edge 10c portion of the engaging container 10A.

  As a result, the dish B containing the broth C can be taken out very easily.

  Reference numeral 10c 'denotes an opening edge on the side of the steaming base 10B engaged with the opening 10y of the bottom 10a of the engaging container 10A, 10b' denotes a side wall of the steaming base 10B, and 10a 'denotes a steaming base 10B. The bottom portion 10a 'is provided with holes 12, 12 ... for introducing steam.

<Eighth embodiment>
Next, FIG.17 and FIG.18 has shown the structure of the steamer (steamer part of the electric rice cooker provided with the steamer) which concerns on Embodiment 8 of this invention.

  In this embodiment, the steaming stand 18 that performs the same function as in the seventh embodiment is not a dish-like structure as described above, but a flat circular plate 18a as shown in FIGS. The circular plate 18a is supported by shaft-like leg members 18b and 18b so as to be movable up and down.

  In this case, the structure of the steamer 10 itself is hardly changed from the original one, and it is only necessary to form the insertion holes 13, 13,... Of the leg members 18b, 18b of the circular plate 18a in the bottom 10a portion. Therefore, the configuration is simple.

<Embodiment 9>
Next, FIG.19 and FIG.20 has shown the structure of the steamer (steamer part of the electric rice cooker provided with the steamer) which concerns on Embodiment 9 of this invention.

  In this embodiment, when realizing the same object as in the seventh and eighth embodiments, the side wall portion 10b of the steamer 10 as shown in FIG. 19 is folded into a horizontal bellows structure as shown in FIG. 20, for example. When the food is taken out from the inner pot 3, the object A to be cooked is kept open as it is the dish B.

  In addition, 19a, 19b has shown the ring-shaped bone member part of the upper and lower sides of the side wall part 10b of the steamer 10. FIG.

  The necessary engaging force with respect to the inner pot 3 can be sufficiently realized by the upper bone member 19a.

<Embodiment 10>
Next, FIG. 21 has shown the structure of the inner pot part of the electric rice cooker provided with the steamer and steamer based on Embodiment 10 of this invention.

  In this embodiment, assuming various modifications, for example, the engaging container 10A portion engaged with the opening edge 3c of the inner pot 3 is formed of a highly rigid non-elastic member (for example, PP), and the inner pot 3, while the bottom-side steaming base 10B portion, which requires high heat resistance, is formed of an elastic material such as silicon rubber, it is related to the opening formed in the bottom portion 10a on the engagement container 10A side. It is characterized by being supported together.

  Reference numeral 10c ′ denotes an engaging edge of the steaming base 10B, 10b ′ denotes the side wall, 10a ′ denotes the bottom, and the bottom 10a ′ is provided with holes 12, 12,. Yes.

<Embodiment 11>
Next, FIG.22 and FIG.23 has shown the structure of the inner pot part of the electric rice cooker provided with the steamer which concerns on Embodiment 11 of this invention, and the same steamer.

  In this embodiment, when the steaming dish 10B side is engaged with the opening of the bottom 10a of the engaging container 10A engaged with the inner pot 3 as in the tenth embodiment, the steaming dish 10B The side wall 10b 'of the outer peripheral surface is provided with two height adjustment portions 60 made of engaging pieces 60a, 60b, 60c, 60a, 60b, 60c having different heights to rotate as desired. By doing so, the height of the steaming dish 10B can be adjusted in three stages.

  For those that take time to cook, the amount of water to be put in the inner pot 3 increases, so the height of the steaming dish 10B must be high, while the one that only takes a short time or the bulk of the food to be cooked is high Needs to reduce the amount of water and lower the height of the steaming dish 10B.

  With the above configuration, it is possible to easily meet such a request.

  In this case, if the leg members 62, 62,... Are provided at the lower part of the steaming pan 10B as shown in FIG. 22, the same effects as those of the seventh and eighth embodiments described above can be obtained after cooking. .

  1 is an outer case, 2 is a lid unit, 3 is an inner pot, 3c is an opening edge, 4 is an inner case, 10 is a steamer, 10a is a bottom portion, 10b is a side wall portion, 10c is an opening edge portion, 10e and 10m are engaged The mating pieces, 10f and 10n are handle portions, 14 is a ring member fitting groove, 15 is a ring member, and 10i and 10j are ribs.

Claims (4)

  A steamer that is filled with water and corresponds to the container heated by the heating means and is supported by being engaged with the opening at the top of the container, and is made of a heat-resistant elastic material. A handle portion is formed on the engaging portion to be engaged, and the handle portion facilitates the removal from the container and increases the engaging force with respect to the opening at the upper portion of the container. A steamer characterized by.   A steamer that is filled with water and corresponds to a container heated by heating means and is supported by being engaged with an opening at the top of the container, and is made of a heat-resistant elastic material. An expandable ring member is attached, and the engagement force with respect to the container is increased by the ring member.   A steamer that is filled with water and corresponds to the container heated by the heating means and is supported by being engaged with the opening at the top of the container, and is made of a heat-resistant elastic material. A steamer characterized in that the sealing portion in the opening in the upper part of the container is improved by bringing the outer peripheral part of the lid covering the opening in the upper part of the container into contact with the engaging part to be engaged .   An electric rice cooker comprising the steamer according to claim 1, 2 or 3.

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