JP3589209B2 - Electric rice cooker - Google Patents

Description

[0002]
TECHNICAL FIELD OF THE INVENTION
[0003]
The present invention relates to an electric rice cooker, and more particularly, to a structure of a shoulder portion of a rice cooker main body in the electric rice cooker.
[Prior art]
[0004]
Generally, in an electric rice cooker, the shoulder of the rice cooker main body is made of synthetic resin, and is integrated with the rice cooker main body.
[0005]
At the shoulder of the electric rice cooker having the above-described structure, there is a problem that the rice is easily put on during the rice cooking and the rice grains are easily put on after the rice is cooked, and cleaning for removing these is troublesome. Further, in an electric rice cooker, heat dissipation through the shoulder of the rice cooker main body during heat retention is most remarkable, and a countermeasure is awaited from the viewpoint of energy saving.
[0006]
In recent years, as one of the countermeasures, there has been proposed a device in which a cover member made of stainless steel or the like is attached to a shoulder of a rice cooker main body.
[Problems to be solved by the invention]
[0007]
In the case of the above-described configuration, the cover member is fixed to the rice cooker main body shoulder portion, and thus cannot be removed. Therefore, there is a problem that the rice and rice grains adhering to the cover member must be wiped off, which is troublesome to clean, and that it is difficult to maintain cleanliness in long-term use.
[0008]
The present invention has been made in view of the above points, and an object of the present invention is to make it possible to wash a shoulder cover in a round manner by making a shoulder cover for covering a shoulder portion of a rice cooker main body detachable.
[Means for Solving the Problems]
[0009]
In the invention of claim 1, as means for solving the above-mentioned problems, a rice cooker main body configured to be able to house a rice cooker therein, and a lid body that covers an opening of the rice cooker main body so as to be openable and closable. in electric cooker equipped with, the shoulder portion of the rice cooker main body, removably attached Rutotomoni the shoulder cover which covers the shoulder portion, the shoulder cover, locking the lid relative to the cooker body An upright wall portion integrally covering the lever portion constituting the lock mechanism in the mounted state is formed .
[0010]
With the above configuration, the shoulder cover can be removed from the shoulder of the rice cooker body, and even if rice or rice grains adhere to the shoulder cover during cooking or warming, remove the shoulder cover and wash the whole. By doing so, it is possible to easily remove rice and rice grains. In addition, since the rice cooker body shoulder is configured to be covered with the shoulder cover, heat dissipation through the rice cooker body shoulder during heat retention is suppressed, and an energy saving effect can be expected. In addition, the lever portion that constitutes the lock mechanism is covered by the shoulder cover, and it is possible to prevent rice grains and dust from entering the lever portion.
[0011]
In the invention of claim 2 , as means for solving the above problems, a rice cooker main body configured to be able to house a rice cooker therein, and a lid body that covers an opening of the rice cooker main body so as to be openable and closable. in electric cooker equipped with, the shoulder portion of the rice cooker main body, is attached detachably shoulder cover for covering the shoulder portion, the said shoulder cover, a hinge portion for pivotally supporting the cover on the rice cooker body Positioning means is provided for positioning the shoulder cover by covering .
[0012]
With the above configuration, the shoulder cover can be removed from the shoulder of the rice cooker body, and even if rice or rice grains adhere to the shoulder cover during cooking or warming, remove the shoulder cover and wash the whole. By doing so, it is possible to easily remove rice and rice grains. In addition, since the rice cooker body shoulder is configured to be covered with the shoulder cover, heat dissipation through the rice cooker body shoulder during heat retention is suppressed, and an energy saving effect can be expected. In addition , the positioning of the shoulder cover can be performed by a simple operation of covering the hinge portion with the shoulder cover, and the mounting work of the shoulder cover becomes easy.
[0013]
In the invention according to claim 3 , as means for solving the above-mentioned problems, a rice cooker main body configured to be able to house a rice cooker therein, and a lid body that opens and closes the opening of the rice cooker main body so as to be freely opened and closed. in electric cooker equipped with, the shoulder portion of the rice cooker main body, with freely attached removably a shoulder cover for covering the shoulder portion, the said shoulder cover, placing handle the handle of the rice device is mounted portion Positioning means for positioning the shoulder cover by covering the shoulder cover is provided .
[0014]
With the above configuration, the shoulder cover can be removed from the shoulder of the rice cooker body, and even if rice or rice grains adhere to the shoulder cover during cooking or warming, remove the shoulder cover and wash the whole. By doing so, it is possible to easily remove rice and rice grains. In addition, since the rice cooker body shoulder is configured to be covered with the shoulder cover, heat dissipation through the rice cooker body shoulder during heat retention is suppressed, and an energy saving effect can be expected. Moreover , the positioning of the shoulder cover can be performed by a simple operation of covering the handle placing portion with the shoulder cover, and the operation of mounting the shoulder cover becomes easy.
[0015]
In the invention of claim 4 , as means for solving the above problems, a rice cooker main body configured to be able to house a rice cooker therein, and a lid body that opens and closes an opening of the rice cooker main body freely. in electric cooker equipped with, the shoulder portion of the rice cooker main body, is attached detachably shoulder cover for covering the shoulder portion, the inner peripheral edge of the shoulder cover, constituting the inner circumferential surface of the rice cooker main body The protection frame is formed integrally .
[0016]
With the above configuration, the shoulder cover can be removed from the shoulder of the rice cooker body, and even if rice or rice grains adhere to the shoulder cover during cooking or warming, remove the shoulder cover and wash the whole. By doing so, it is possible to easily remove rice and rice grains. In addition, since the rice cooker body shoulder is configured to be covered with the shoulder cover, heat dissipation through the rice cooker body shoulder during heat retention is suppressed, and an energy saving effect can be expected. In addition , the shoulder cover and the protective frame to which the rice grains easily adhere can be removed as a single unit and can be washed as a whole, which facilitates maintenance of the electric rice cooker.
BEST MODE FOR CARRYING OUT THE INVENTION
[0017]
Hereinafter, some preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0018]
First Embodiment FIGS. 1 to 6 show an electric rice cooker according to a first embodiment of the present invention.
[0019]
As shown in FIGS. 1 and 2, the electric rice cooker has a double structure rice cooker body 1 having a space 4 and configured to accommodate a rice cooker 3 therein, and the rice cooker. A cover 2 for opening and closing and detachably covering an upper opening of the main body 1;
[0020]
The rice cooker main body 1 includes an outer case 5 made of an integrally molded synthetic resin having a body portion 5a serving as an outer wall, a synthetic resin bottomed cylindrical protection frame 6 serving as an inner peripheral wall, and the protection frame. The outer case 5 includes a shoulder 5b integrally formed with the outer case 5 to join the upper end of the outer case 5 to the upper end of the body 5a, and a bottom member 7 made of a synthetic resin serving as a bottom wall. The space 4 is formed by being surrounded by the protective frame 6 and the bottom member 7. Note that the rice cooker 3 is housed in the protective frame 6 so as to be removable.
[0021]
At the center of the bottom of the protection frame 6, a sensor hole 9 for receiving a center sensor 8 serving as a temperature detecting means for detecting the temperature of the rice cooker is formed.
[0022]
An annular electromagnetic induction coil (hereinafter, referred to as a work coil) 10 acting as a heating means during rice cooking so as to surround the sensor hole 9 is a bottom surface of the protection frame 6 and a curved portion between the bottom surface and a side peripheral surface. It is arranged corresponding to. The work coil 10 generates an alternating magnetic field, generates an induced eddy current in the rice cooker 3 by electromagnetic induction of the alternating magnetic field, and heats the electric device using the resistance heat of the induced eddy current. ing. The rice cooker 3 is made of a material (for example, a magnetic material) capable of generating an induced eddy current by the work coil 10.
[0023]
The work coil 10 is sandwiched between a coil die 11 fixed to the bottom surface of the protection frame 6 and the bottom surface of the protection frame 6.
[0024]
A center sensor 8 is provided in the sensor hole 9 so as to contact the bottom of the rice cooker 3.
[0025]
Cooling air is pressure-fed to the bottom of the rice cooker main body 1 (that is, the lower part of the space 4) to electronic components such as a power transistor and a rectifying diode bridge (not shown) for controlling the energization of the work coil 10. An electronic component cooling fan 12 is provided. An air inlet 13 is formed on the bottom wall (specifically, the bottom member 7) of the rice cooker main body 1 so as to face the electronic component cooling fan 12.
[0026]
On the other hand, the lid 2 is composed of a synthetic resin upper plate 14 constituting the outer surface and a synthetic resin lower plate 15 constituting the inner surface, and a space surrounded by the upper and lower plates 14, 15. The part 16 is provided with a heat insulating material 17.
[0027]
The lid 2 can be freely opened and closed and attached to and detached from the rice cooker main body 1 via a hinge unit 19 pivotally supported on a hinge 18 formed on one side of the outer case shoulder 5b. Mounted freely.
[0028]
At the center of the lid 2, there is formed a cylindrical portion 20 vertically provided from the upper plate 14, and inside the cylindrical portion 20 is used for discharging steam generated during rice cooking to the outside. A pressure regulating cylinder 22 having a steam discharge passage 21 is detachably attached. A ball valve 23 acting as a pressure regulating valve is provided in the pressure regulating cylinder 22. At the lower end of the pressure regulating cylinder 22, a heat radiating plate 24 made of a good heat conductor (for example, aluminum alloy) for sealing the opening 3a of the rice cooker 3 when the lid 2 is closed is attached. Reference numeral 26 denotes a steam inlet to the pressure control cylinder 22, 27 denotes a steam outlet from the pressure control cylinder 22, 28 denotes a steam cap detachably attached to the cylindrical portion 20, 29 denotes a peripheral edge of the heat sink 24 and a rice cooker Reference numeral 30 denotes a seal packing for sealing between the opening 3a and the sealing plate 30 for sealing between the heat radiating plate 24 and the lid lower plate 15.
[0029]
The outer case shoulder 5b is provided with a shoulder heater 31. The outer peripheral edge of the heat radiating plate 24 is pressed against the shoulder heater 31 when the lid 2 is closed. It is to be heated by heat conduction from 31. The shoulder heater 31 has a pair of substantially semicircular heater rings 32, 32 (see FIG. 3) having an inverted U-shaped cross section and formed with gaps S, S interposed therebetween, and the respective heater rings. And a heating element 33 disposed inside the heating element 32. Handles 35, 35 on which handles 34, 34 provided opposite to each other at the edge of the rice cooker 3 are formed in the gaps S, S (see FIG. 2).
[0030]
The lid 2 is located inside the heat radiating plate 24 and faces inward from the opening 3a of the rice cooker 3 in a state where a space is interposed between the lid 2 and the heat radiating plate 24. In addition, an inner lid 36 made of a good heat conductor is provided, the outer periphery of which is close to the inner peripheral surface of the rice cooker 3. The inner lid 36 is attached to a seal packing 25 which is detachably fitted to a support shaft 37 projecting downward from the center of the pressure regulating cylinder 22.
[0031]
The lid 2 is held in a closed state via a lock mechanism 38 on the side opposite to the hinge of the rice cooker main body 1. The lock mechanism 38 includes a locking portion 39 formed on the side opposite to the hinge of the lid 2, and a lock lever 40 locked to the locking portion 39. The movably supported portion constitutes the lever portion A in the open state.
[0032]
A shoulder cover 41 for covering the shoulder 5b is detachably attached to the shoulder 5b of the rice cooker main body 1. As shown in FIG. 3, the shoulder cover 41 covers the outer portion of the heater ring 32 in the shoulder 5b, and covers the hinge portion 18 to position the shoulder cover 41. The locking mechanism 38 includes a positioning portion 41b serving as positioning means, positioning portions 41c serving as second positioning means for positioning the shoulder cover 41 by covering the handle mounting portions 35, 35, and a lock mechanism 38. And a standing wall portion 41d that covers the lever portion A to be mounted in an attached state. In the present embodiment, the shoulder cover 41 is made of stainless steel. However, there is no particular limitation on the material, and any suitable material can be used as long as it has good appearance and can easily clean dirt and the like. Can be selected.
[0033]
The cover main body 41a is provided with a concave-shaped dew receiving means 42. In this way, the shoulder cover 41 can receive the dew and the dew water attached to the lid 2 generated at the time of cooking rice. It is desirable to form corrugations (not shown) on the dew receiving means 42 in order to prevent dew dropping during detachment or movement. Further, the handle 34 of the rice cooker 3 is configured to be placed in a state where the positioning portions 41c, 41c cover the handle placement portions 35, 35. That is, unless the shoulder cover 41 is attached, the rice cooker 3 cannot be stored in the predetermined position. In this way, forgetting to attach the shoulder cover 41 can be reliably prevented.
[0034]
In the electric rice cooker configured as described above, the following operational effects can be obtained.
[0035]
Since the shoulder cover 41 can be detached from the shoulder 5b of the rice cooker main body 1, even if rice or rice grains adhere to the shoulder cover 41 during rice cooking or warming, the shoulder cover 41 is removed and washed round. By doing so, it is possible to easily remove rice and rice grains. In addition, since the shoulder 5b of the rice cooker main body 1 is configured to be covered with the shoulder cover 41, heat dissipation through the shoulder 5b of the rice cooker main body 1 during heat insulation is suppressed, and an energy saving effect is expected. You can also. As shown in FIG. 7, a convex wall 43 is integrally formed on the outer peripheral portion of the shoulder cover 41, and when the lid 2 is closed, the convex wall 43 is brought into contact with the rice cooker main body 1 on the lid 2. If it is inserted into the concave groove 44 formed in the portion, the heat radiation through the shoulder portion 5b of the rice cooker main body 1 during the heat retention is further suppressed, and a further energy saving effect can be expected.
[0036]
Since the shoulder cover 41 can be positioned at the time of mounting by the first positioning portion 41b covering the hinge portion 18 and the second positioning portions 41c, 41c covering the handle placing portions 35, 35, the shoulder cover 41 can be mounted. Work becomes extremely easy.
[0037]
Moreover, the shoulder cover 41 has an upright wall portion 41d which covers a lever portion A pivotally supporting a lock lever 40 constituting a lock mechanism 38 for locking the lid 2 to the rice cooker main body 1 in an attached state. Are integrally formed, the lever portion A is covered by the shoulder cover 41, and it is possible to prevent rice grains and dust from entering the lever portion A.
[0038]
In the present embodiment, the outer peripheral edge of the shoulder cover 41 is made to coincide with the outer peripheral edge of the shoulder 5b. However, a hanging wall is formed integrally with the outer peripheral edge of the shoulder cover 41, and this hanging wall is formed. Needless to say, the outer peripheral edge of the shoulder portion 5b may be covered.
[0039]
Second Embodiment FIG. 8 is an exploded perspective view of an electric rice cooker according to a second embodiment of the present invention.
[0040]
In this case, the shoulder heater 5 is not provided on the shoulder 5 b of the rice cooker main body 1, but a lid heater (not shown) is provided on the bottom surface of the lid 2. Therefore, the shoulder cover 41 is detachably attached so as to cover the entire surface of the shoulder portion 5b. The shoulder cover 41 is made of a synthetic resin, and the protection frame 6 is integrally provided on the inner peripheral edge thereof. In other words, the shoulder cover 41 and the protection frame 6 are configured by an integrally molded product of a synthetic resin. On the shoulder 5b, three projections 45, 45, 45 for positioning the flange of the rice cooker 3 are formed, while on the shoulder cover 41, the projections 45, 45, 45 are fitted. Holes 46, 46, 46 are formed. By doing so, the shoulder cover 41, which is easily soiled, and the protective frame 6, to which the rice grains easily adhere, can be integrally removed and washed in a round, and the electric rice cooker can be easily cleaned. In addition, since the shoulder cover 41 and the protection frame 6 are formed of an integrally molded product of synthetic resin, the number of parts can be reduced and the number of assembling steps can be reduced. The other configuration and operation and effect are the same as those in the first embodiment, and thus the description is omitted.
[0041]
In each of the above embodiments, the work coil is used as the heating means for cooking rice. However, the present invention can of course be applied to an apparatus using an electric heater as the heating means for cooking rice.
【The invention's effect】
[0042]
According to the invention of claim 1, an electric rice cooker including a rice cooker main body configured to be capable of storing a rice cooker therein, and a lid body that covers an opening of the rice cooker main body so as to be freely opened and closed, A shoulder cover for covering the shoulder is detachably attached to the shoulder of the rice cooker main body so that the shoulder cover can be removed from the shoulder of the rice cooker main body and washed in a round manner, so that rice can be cooked or kept warm. Even if the rice and rice grains sometimes adhere to the shoulder cover, there is an effect that the rice and rice grains can be easily removed. In addition, since the shoulder of the rice cooker main body is covered with the shoulder cover, the heat radiation through the shoulder of the rice cooker main body during heat insulation is suppressed, and the effect of being able to expect an energy saving effect can be expected. is there. Moreover, since the shoulder cover is integrally formed with an upright wall portion which covers a lever portion constituting a lock mechanism for locking the lid to the rice cooker main body in an attached state, the lever portion constituting the lock mechanism is formed. Is covered by the shoulder cover, and there is also an effect that rice grains and dust can be prevented from entering the lever portion.
[0043]
According to the invention of claim 2 , an electric rice cooker including a rice cooker main body configured to accommodate a rice cooker therein, and a lid body that covers an opening of the rice cooker main body so as to be openable and closable, A shoulder cover for covering the shoulder is detachably attached to the shoulder of the rice cooker main body so that the shoulder cover can be removed from the shoulder of the rice cooker main body and washed in a round manner, so that rice can be cooked or kept warm. Even if the rice and rice grains sometimes adhere to the shoulder cover, there is an effect that the rice and rice grains can be easily removed. In addition, since the shoulder of the rice cooker main body is covered with the shoulder cover, the heat radiation through the shoulder of the rice cooker main body during heat insulation is suppressed, and the effect of being able to expect an energy saving effect can be expected. is there. In addition, since the shoulder cover is provided with positioning means for positioning the shoulder cover by covering the hinge for pivotally supporting the lid on the rice cooker body, a simple operation of covering the hinge with the shoulder cover is provided. Thus, the positioning of the shoulder cover can be performed, and there is also an effect that the mounting work of the shoulder cover becomes easy.
[0044]
According to the invention of claim 3 , an electric rice cooker comprising: a rice cooker main body configured to be able to house a rice cooker therein; and a lid body that covers an opening of the rice cooker main body so as to be openable and closable. A shoulder cover for covering the shoulder is detachably attached to the shoulder of the rice cooker main body so that the shoulder cover can be removed from the shoulder of the rice cooker main body and washed in a round manner, so that rice can be cooked or kept warm. Even if rice and rice grains sometimes adhere to the shoulder cover, there is an effect that the rice and rice grains can be easily removed. In addition, since the shoulder of the rice cooker main body is covered with the shoulder cover, the heat radiation through the shoulder of the rice cooker main body during heat insulation is suppressed, and the effect of being able to expect an energy saving effect can be expected. is there. In addition, since the shoulder cover is provided with positioning means for positioning the shoulder cover by covering the handle mounting portion on which the handle of the rice cooker is mounted, the shoulder cover covers the handle mounting portion. Since the positioning of the shoulder cover can be performed by a simple operation, there is an effect that the mounting operation of the shoulder cover becomes easy.
[0045]
According to the invention of claim 4 , an electric rice cooker including a rice cooker main body configured to be able to store a rice cooker therein, and a lid body that opens and closes an opening of the rice cooker main body, A shoulder cover for covering the shoulder is detachably attached to the shoulder of the rice cooker main body so that the shoulder cover can be removed from the shoulder of the rice cooker main body and washed in a round manner, so that rice can be cooked or kept warm. Even if the rice and rice grains sometimes adhere to the shoulder cover, there is an effect that the rice and rice grains can be easily removed . In addition, since the shoulder of the rice cooker main body is covered with the shoulder cover, the heat radiation through the shoulder of the rice cooker main body during heat insulation is suppressed, and the effect of being able to expect an energy saving effect can be expected. is there. Moreover, since the protective frame constituting the inner peripheral surface of the rice cooker body is integrally formed on the inner peripheral edge of the shoulder cover , the shoulder cover that is easily soiled and the protective frame to which rice grains are easily attached are removed as a unit. It is possible to wash the whole rice cooker, which also has the effect of facilitating maintenance of the electric rice cooker.
[Brief description of the drawings]
[0046]
FIG. 1 is a longitudinal sectional view of an electric rice cooker according to a first embodiment of the present invention.
FIG. 2 is a sectional view taken along line II-II of FIG.
FIG. 3 is an exploded perspective view of a main part of the electric rice cooker according to the first embodiment of the present invention.
FIG. 4 is an enlarged sectional view of a hinge portion of the electric rice cooker according to the first embodiment of the present invention.
FIG. 5 is an enlarged sectional view of a lever portion of the electric rice cooker according to the first embodiment of the present invention.
FIG. 6 is an enlarged cross-sectional view of the handle placing portion of the electric rice cooker according to the first embodiment of the present invention.
FIG. 7 is an enlarged sectional view of a main part of a modification of the electric rice cooker according to the first embodiment of the present invention.
FIG. 8 is an exploded perspective view of the electric rice cooker according to the second embodiment of the present invention.
[Explanation of symbols]
[0047]
1 is a rice cooker main body, 2 is a lid, 3 is a rice cooker, 5 is an outer case, 5a is a trunk, 5b is a shoulder, 6 is a protective frame, 10 is a heating means (work coil), 18 is a hinge, 31 is a shoulder heater, 32 is a heater ring, 34 is a handle, 35 is a handle mounting portion, 38 is a lock mechanism, 39 is a locking portion, 40 is a lock lever, 41 is a shoulder cover, 41a is a cover body, and 41b is a positioning member. Means (first positioning part), 41c is positioning means (second positioning part), 41d is a standing wall part, 42 is a dew receiving means, A is a lever part, and S is a gap.

Claims (4)

An electric rice cooker comprising: a rice cooker main body configured to accommodate a rice cooker therein; and a lid body for opening and closing the opening of the rice cooker main body, wherein a shoulder of the rice cooker main body is provided. the detachably mounted Rutotomoni the shoulder cover which covers the shoulder portion, the shoulder cover, vertical wall covering a lever portion which constitutes a lock mechanism for locking the lid relative to the cooker body in the mounted state An electric rice cooker characterized in that a part is integrally formed . An electric rice cooker comprising: a rice cooker main body configured to accommodate a rice cooker therein; and a lid body for opening and closing the opening of the rice cooker main body, wherein a shoulder of the rice cooker main body is provided. the, is attached detachably shoulder cover for covering the shoulder portion, the said shoulder cover, a positioning means for positioning the shoulder cover by covering a hinge portion for pivotally supporting the cover on the rice cooker body it characterized by providing electric rice cooker. An electric rice cooker comprising: a rice cooker main body configured to accommodate a rice cooker therein; and a lid body for opening and closing the opening of the rice cooker main body, wherein a shoulder of the rice cooker main body is provided. the, is attached detachably shoulder cover for covering the shoulder section, said the shoulder cover, positioning means for positioning the shoulder cover by covering the handle mounting part handle of the rice instrument is placed the electric rice cooker you, characterized in that it is provided. An electric rice cooker comprising: a rice cooker main body configured to accommodate a rice cooker therein; and a lid body for opening and closing the opening of the rice cooker main body, wherein a shoulder of the rice cooker main body is provided. the, is attached detachably shoulder cover for covering the shoulder portion, the inner peripheral edge of the shoulder cover, characterized in that it is formed integrally with the protective frame that constitutes the inner circumferential surface of the rice cooker main body electric rice cooker.

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