JP2002300961A - Rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice cooker from which a pot is easily taken out when opening a lid and workability is improved when serving rice as well. SOLUTION: A lid 23 covers the upper surface opening part of a main body 17 and the lid 23 is supported freely turnably via a pin 26 by a hinge part 25 integrally formed at the upper part of an upper frame 24 constituting the upper part of the main body 17. For the lid 23, when it is closed, the lower surface on a front side is made lower than the lower surface of the lid 23 on the side of the hinge part 25. Accordingly, the outer peripheral height of the upper frame 24 also becomes lower on the front side than on the side of the hinge part 25. When the lid 23 is opened, since the upper frame 24 is inclined so as to lower the front side, a part projected above the outer peripheral surface of the upper frame 24 of a pot 18 becomes larger on the front side and the pot 18 is easily taken out. Also, when the rice is served, since the front side of the upper frame 24 is lowered, it hardly becomes an obstacle and the workability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker used for general household or business use.

[0002]

2. Description of the Related Art In recent years, rice cookers have been made compact, for example, as shown in FIG. In FIG.
Reference numeral 1 denotes a main body, an upper surface of which is open, a protective frame 3 serving as a storage portion for the pan 2 disposed inside the main body 1, a heating coil 4 for induction heating the pan 2 outside the protective frame 3, and Since the control circuit 5 is provided, the distance between the main body 1 and the heating coil 4 and the control circuit 5 is minimized to achieve compactness. A temperature detection sensor 6 for detecting the temperature of the pan 2 is provided at the bottom of the protection frame 3, and the temperature detection of the temperature detection sensor 6 controls the energization of the heating coil 4 to cook rice and keep the temperature.

[0003] Reference numeral 7 denotes a lid for covering the upper opening of the main body 1. The lid 7 is rotatably supported via pins 10 on an upper frame 8 constituting the upper part of the main body 1. The operation unit 9 is provided on the lid 7 in order to reduce the installation area of the main body 1, and is provided to be inclined forward to improve operability and visibility. Reference numeral 11 denotes an outer lid cover, and the outer lid cover 11 is fixed inside the lid 7. A radiator plate unit 12 is detachably attached to the lower surface of the outer cover 11. A lid heating coil 13 serving as a lid heating means supported by the outer lid cover 11 is located above the radiator plate unit 12. By heating the radiator plate unit 12 by the electromagnetic action of the lid heating coil 13, the radiator plate unit 12 is heated from the upper surface at the time of cooking rice and lifted up so as to wrap the whole rice.
During the heat retention, the temperature of the rice can be maintained uniformly by heating from above and heating the induction coil 4 which is a heating means for the pan 2.

A cover sensor 14 for detecting the temperature of the heat radiating plate unit 12 is provided so as to be in pressure contact with the heat radiating plate unit 12 side. Reference numeral 15 denotes a steam cylinder which is detachably provided in the steam passage 16 of the lid 7.

[0005]

However, in the above-mentioned rice cooker, when the upper frame 8 is lowered so that the pan 2 can be easily taken out, so that the pan 2 protrudes greatly from the upper frame.
It is necessary to lower the pin 10 that supports the lid 7, but this causes a problem that the internal volume of the main body 1 decreases and the control circuit 5 cannot enter. In addition, since the operation unit 9 is inclined forward, there is a problem that the thickness of the lid 7 is thinner in the front than in the rear of the lid 7 and the rigidity on the front side of the lid 7 is reduced.

The present invention solves the above-mentioned problems, and provides a rice cooker in which when the lid is opened, the pot is easily taken out, the workability is improved even when rice is removed, and the rigidity of the lid is improved. Is what you do.

[0007]

In order to solve the above-mentioned problems, the present invention provides a main body, a pot removably stored in the main body, and a heating means provided in the main body for heating the pan. A lid having a hinge portion that covers the upper surface opening of the main body and is pivotally supported so as to be openable and closable, wherein the hinge portion is disposed behind the main body, and the lower surface on the front side of the lid is on the hinge portion side of the lid. Are formed lower than the lower surface of the first.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 comprises a main body,
A pan removably housed in the main body, a heating means provided in the main body for heating the pan, and a lid having a hinge part which covers an upper surface opening of the main body and pivotally supports the main body. By disposing the hinge portion behind the main body and making the lower surface on the front side of the lid lower than the lower surface on the hinge side of the lid, the allowance from the upper frame of the pan when the lid is opened is the front side. As a result, it becomes easier to take out the pot, and the height of the obstructing upper frame in front of when eating rice is reduced, so that workability can be improved. Further, the front side of the lid can be made thicker, the rigidity of the lid can be improved with a compact shape, and a reinforcing member for reinforcing the lid becomes unnecessary.

According to a second aspect of the present invention, the center of rotation of the hinge portion that pivotally supports the lid so that it can be opened and closed is disposed below the upper surface of the pan, so that when the lid is opened, the pan projects out of the main body. The cost is larger even on the back side, making it easier to take out the pot.

According to the third aspect of the present invention, since the upper outer periphery of the pan is not exposed by providing a projection from the upper frame constituting the upper opening of the main body so as to cover the outer periphery of the upper surface of the pan, rice is collected. At that time, the shape of the obstructing upper frame at the front is low, so that the heat insulating property can be improved.

According to a fourth aspect of the present invention, a flange is provided on the upper surface of the pot, and a part or the entire outer periphery of the convex portion which covers the outer periphery of the upper surface of the pot formed on the upper frame constituting the upper opening of the main body is provided. By arranging inside the flange of the pot, since the flange of the pot is outside the convex portion of the upper frame, it is easy to put a hand on the flange portion when attaching and detaching the pan, so that the detachability of the pan is not degraded In addition, the heat insulation can be improved.

According to a fifth aspect of the present invention, the convexity for covering the outer periphery of the upper surface of the pot formed on the upper frame constituting the upper opening of the main body is hollow, thereby further improving the heat insulation of the convexity for covering the pot. Can be done.

According to a sixth aspect of the present invention, a groove is provided on an outer peripheral portion of a pot of an upper frame constituting an upper opening of the main body, and a groove at the rear of the main body is provided on a bottom surface of the groove from the rear to the front of the main body. By providing a part higher than the bottom, when the lid is opened, the dew hanging from the lid does not flow to the front of the upper frame, and dew can be stored only in the rear part of the main body where dew drops most easily, The area to be stained can be reduced. Also,
By aligning the side of the groove with the structural rib on the lower surface of the upper frame, sink of the rib on the upper frame surface can be prevented.

According to a seventh aspect of the present invention, a groove is provided on the outer periphery of the pot of the upper frame constituting the upper opening of the main body, and the inclination direction of the groove is made to coincide with the inclination direction of the lower surface of the lid. The top surface of the upper frame and the bottom of the groove are in the same direction, making the upper frame upper surface clear when the lid is opened, and the dripping dew on the upper frame is easy to wipe off due to the inclination of the groove on the front side Because it flows, there is no dew on the back side where it is difficult to wipe off the accumulated dew, which makes cleaning easier.

[0015]

1 and 2 show a first embodiment of the present invention.
This will be described with reference to FIG.

1 and 2, the main body 17 has an opening at an upper surface, a protection frame 19 serving as a storage portion for a pot 18 is disposed inside the main body 17, and a heating means is provided outside the protection frame 19. ing. In this embodiment, the pot 18 is used as a heating means.
Coil 20 for inductively heating the fuel cell and control circuit 2
1 is provided. A temperature detection sensor 22 for detecting the temperature of the pot 18 is provided at the bottom of the protection frame 19, and the control circuit 21 controls the energization of the heating coil 20 by the temperature detection of the temperature detection sensor 22 to cook and heat rice. Perform

Reference numeral 23 denotes a lid for covering the upper opening of the main body 17.
The lid 23 is rotatably supported via a pin 26 on a hinge part 25 integrally formed on an upper part of an upper frame 24 constituting an upper part of the main body 17. When the lid 23 is closed, the front lower surface is lower than the lower surface of the lid 23 on the hinge portion 25 side. Accordingly, the outer peripheral height of the upper frame 24 is lower on the front side than on the hinge portion 25 side. Therefore, when the lid 23 is opened, since the upper frame 24 is inclined so that the front side is lower, the portion protruding above the outer peripheral surface of the upper frame 24 of the pan 18 becomes larger toward the front side, and the pan 18 It is easier to remove when you try to remove it. In addition, even when rice is to be eaten, the front side of the upper frame 24 is lowered, so that it is hard to get in the way and workability is improved. The center of the pin 26, which is the center of rotation of the hinge, is provided below the upper surface of the pot 18. For this reason, the allowance of the pot 18 from the upper frame 24 is further increased, and the ease of taking out the pot 18 is further improved.

Reference numeral 27 denotes an outer lid cover.
Is fixed inside the lid 23. This outer cover 27
A radiator plate unit 28 is detachably attached to the lower surface of. A lid heating coil 2 serving as a lid heating means supported by the outer lid cover 27 is provided above the heat sink unit 28.
9 are located. By heating the radiator plate unit 28 by the electromagnetic action of the lid heating coil 29, the radiator plate unit 28 is heated from the upper surface at the time of cooking rice so as to wrap up the whole rice, and is a means of heating from the upper surface and heating the pan 18 at the time of heat retention. By heating the induction coil 20, the temperature of the rice can be kept uniform.

Reference numeral 30 denotes a lid sensor for detecting the temperature of the radiator plate unit 28, which is provided so as to be in pressure contact with the radiator plate unit 28, and controls the energization of the lid heating coil 29 by the detection of the lid sensor 30. Reference numeral 31 denotes a steam cylinder which is detachably provided in the steam passage 32 of the lid 23.

The heat sink unit 28 is provided with a pot packing 33. The pot packing 33 is pressed against a flange 34 of the pot 18 when the lid 23 is closed to hermetically close the pot 18. .

The upper frame 24 is provided with a convex portion 35 so as to cover the upper outer periphery of the pot 18. Therefore, the upper portion of the pot 18 is prevented from being exposed from the upper frame 24, the outer periphery of the pot 18 is hardly cooled by the outside air, and heat insulation can be secured. Further, in the present embodiment, the convex portion 35 has the hollow portion 36 inside.
And a side coil 37 for heating the side portion of the pot 18 is provided inside the hollow portion 36. The hollow portion 36 in the convex portion 35 of the upper frame 24 not only improves the heat insulation property but also allows the side coil 37 to be provided at a position where the upper portion of the pot 18 is heated. It is possible to prevent the upper portion of the pot 18 from being cooled by the invasion of outside air from the gap 23. In this embodiment,
Although the side coil 37 is provided in the hollow portion 36 to prevent the upper portion of the pot 18 from being cooled, a member having a heat insulating effect such as glass wool may be put in the hollow portion 36.

Further, since the lower surface on the front side is made lower than the lower surface on the hinge portion 25 side of the lid 23, the top surface of the lid 23 is inclined forward so that the height of the whole rice cooker does not change in the vertical direction. Since the rigidity of the lid 23 can be improved by increasing the thickness of the front side of the lid 23, there is no need to add a reinforcing member for reinforcing the front side of the lid 23, and the rigidity of the front side of the lid 23 is improved in a compact shape. it can.

Next, as shown in FIG. 3 showing a cross section of the main body 17, a part or the entire circumference of the convex portion 35 of the upper frame 24 is
Is provided inside the outer periphery of the flange 34. Accordingly, when the pan 18 has the flange 34 of the pan 18 when the pan 18 is attached or detached, the convex portion 35 of the upper frame 24 is unlikely to be in the way.

A groove 38 is provided on the outer periphery of the pot 18 of the upper frame 24. The groove 38 is, as shown in FIG.
A groove bottom 39-c higher than the groove bottom 39-b on the hinge part 25 side is provided on a groove bottom 39-a on the front side of the groove 38 on the side.
With this configuration, the dew attached to the heat sink unit 28 when the lid 23 is opened falls along the heat sink unit 28 to the hinge 25 side of the upper frame 24 and accumulates in the groove 38. At this time, the groove bottom surface 39-c, which is higher than the groove bottom surface 39-b on the hinge portion 25 side, prevents dew from flowing forward.
Since the front groove bottom surface 39-a is hardly contaminated, the number of places to be cleaned at the time of maintenance is reduced, and the careability is improved. In addition, by taking the volume of dew that accumulates due to the difference in height between the groove bottom surface 39-c and the groove bottom surface 39-b larger than the amount of dew dropping into the upper frame 24 during normal rice cooking and heat retention, the dew falls on the front side of the groove 38. It does not flow out, and the frequency of contamination of the front side of the groove 38 is further reduced.

Next, another embodiment will be described with reference to FIG. In FIG. 5, a groove 41 is provided on the outer periphery of the pot 18 of the upper frame 40 so as to be inclined in the same direction as the lower surface of the lid 23. Therefore, the bottom surface of the groove 41 is inclined in the forward direction of the main body 17, and the dew hanging on the upper frame 40 flows along the groove 41 and accumulates on the front side where it is easy to wipe off. Easy wiping only on the front side improves the careability. Also, upper frame 4
Since 0 and the direction of the inclination of the groove 41 match, the appearance of the top surface of the upper frame 40 when the lid is opened can be made clear.
The configuration of the other parts is the same as that of the first embodiment.

[0026]

As described above, according to the first aspect of the present invention, the lower surface on the front side of the lid is made lower than the lower surface on the hinge side of the lid, so that when the lid is opened, Since the allowance from the frame increases on the front side, it is easy to take out the pan, and the height of the obstructive upper frame in front of the rice is reduced, so that workability can be improved. Further, the front side of the lid can be made thicker, the rigidity of the lid can be improved with a compact shape, and a reinforcing member for reinforcing the lid becomes unnecessary.

According to the second aspect of the present invention, the center of rotation of the hinge portion that pivotally supports the lid so that it can be opened and closed is disposed below the upper surface of the pan, so that when the lid is opened, the pan is opened. The allowance from the main body is increased, and the pan can be more easily taken out.

According to the third aspect of the present invention, the upper outer periphery of the pot is not exposed by providing the projection from the upper frame constituting the upper opening of the main body so as to cover the outer periphery of the upper surface of the pan. In addition, the height of the obstructing upper frame in front of when eating rice is low, so that heat insulation can be improved.

According to the fourth aspect of the present invention, a flange is provided on the upper surface of the pot, and a part of the outer periphery of the convex portion which covers the outer periphery of the upper surface of the pot formed on the upper frame constituting the upper opening of the main body. Or by arranging the entire circumference inside the flange of the pot, because it is easier to put a hand on the flange when attaching and detaching the pan because there is a flange of the pot outside the convex portion of the upper frame,
The heat insulation can be improved without reducing the detachability of the pot.

According to the fifth aspect of the present invention, the heat insulating property is further improved by making the convex portion covering the outer periphery of the upper surface of the pot formed on the upper frame constituting the upper opening of the main body particularly hollow. be able to.

According to the invention of claim 6, a groove is provided on the outer peripheral portion of the pot of the upper frame constituting the upper opening of the main body, and the main body is provided on the bottom surface of the groove from the rear to the front of the main body. By providing a part higher than the groove bottom behind
When the lid is opened, the dew that drips from the lid does not flow to the front of the upper frame, and the dew can be stored only in the rear part of the main body where the dew drops most easily, and the range of contamination can be reduced. Also, by aligning the structural ribs on the lower surface of the upper frame with the side surfaces of the grooves, it is possible to prevent sinks of the ribs on the upper frame surface.

Further, according to the present invention, a groove is provided on the outer periphery of the pot of the upper frame constituting the upper opening of the main body, and the inclination direction of the groove coincides with the inclination direction of the lower surface of the lid. This allows the top surface of the upper frame and the bottom of the groove to change in the same direction, making the appearance of the upper frame upper surface clear when the lid is opened, and the dripping dew on the upper frame due to the inclination of the groove Since it flows to the front side where it is easy to wipe off, there is no dew on the rear side where it is difficult to wipe off accumulated dew, which improves the maintainability.

[Brief description of the drawings]

FIG. 1 is a sectional view in the front-rear direction of a rice cooker according to a first embodiment of the present invention.

FIG. 2 is a side view of the rice cooker.

FIG. 3 is a partial cross-sectional view of the rice cooker in a lateral direction.

FIG. 4 is a partial sectional view of the same.

FIG. 5 is a partial sectional view of a rice cooker according to a second embodiment of the present invention.

FIG. 6 is a partial sectional view showing a conventional rice cooker.

[Explanation of symbols]

 17 Body 18 Pot 20 Heating coil 23 Lid 24, 40 Upper frame 25 Hinge part 34 Flange 35 Convex part 36 Hollow part 38, 41 Groove

 ──────────────────────────────────────────────────の Continuing on the front page (72) Atsushi Korai, 1006 Kadoma Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Inventor Toshihiro Fujita 1006 Kadoma, Kazuma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. F term (reference) 4B055 AA03 BA15 BA36 BA37 CA06 CA25 CB03 CB11 CC23

Claims (7)

[Claims] 1. A main body, a pan removably stored in the main body, a heating means provided in the main body for heating the pan, and a pivotally openable and closable cover covering an upper opening of the main body. A rice cooker comprising: a lid having a hinge portion, wherein the hinge portion is arranged behind the main body, and a lower surface on a front side of the lid is lower than a lower surface on a hinge portion side of the lid. 2. The rice cooker according to claim 1, wherein the center of rotation of the hinge part for pivotally supporting the lid is disposed below the upper surface of the pan. 3. An upper frame constituting an upper opening of the main body,
3. The rice cooker according to claim 1, wherein a convex portion is provided so as to cover an outer periphery of an upper surface of the pot. 4. A pan is provided with a flange on the upper surface thereof, and a part or the entire periphery of a cover for covering an outer periphery of an upper surface of the pan formed on an upper frame constituting an upper opening of the main body is provided inside the flange of the pan. The rice cooker according to claim 3, which is disposed. 5. The rice cooker according to claim 3, wherein a convex portion covering the outer periphery of the upper surface of the pot formed in the upper frame constituting the upper opening of the main body is hollow. 6. A groove is provided on an outer peripheral portion of a pan of an upper frame constituting an upper opening of the main body, and a portion higher than a groove bottom on a rear side of the main body is provided on a bottom surface of the groove from a rear side to a front side of the main body. The rice cooker according to any one of claims 1 to 5. 7. The container according to claim 1, wherein a groove is provided in an outer peripheral portion of the pan of the upper frame constituting the upper opening of the main body, and the inclination direction of the groove coincides with the inclination direction of the lower surface of the lid. The rice cooker according to the above.