JP2013111334A - Rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice cooker for improving maintainability by reducing sticky juice accumulated in a space of a steam passage, and to prevent water drops from falling on cooked rice from the steam passage when a lid is opened and an outer lid is closed during cooking and heat retaining.SOLUTION: A steam vent 6 is formed in the outer lid 5 forming an upper face of a lid body 3. A cylindrical wall B7 is formed on a lower face of the outer lid so as to surround the steam vent 6. A valve holder 12 is arranged so as to be separated from a packing 8 on an end face of a cylindrical wall B7 of the steam passage 11. The valve holder 12 is formed of a hollow body of the cylindrical wall B7 and a valve 13 is arranged so as to close a lower face. At least a packing projection 8a on the hinge side, which is part of the packing 8 in the end face of the cylindrical wall B7, is arranged so as to be closer to an outer face of the valve holder 12 than the other parts.

Description

  The present invention relates to a spillage prevention valve for a rice cooker and a steam passage used in a general household.

  Conventionally, in this type of rice cooker, the lid has a lid that covers the upper surface opening of the rice cooker body that houses the pan, and a heating plate provided below the lid, and the steam that is provided with a steam cylinder in the lid It is known that the path is provided with steam holes in the heating plate and provided with a squeeze-out prevention valve so as to cope with steam and rice balls generated during cooking rice (see, for example, Patent Document 1). .

  FIG. 6 shows a spill prevention valve for a rice cooker described in Patent Document 1. As shown in FIG. As shown in FIG. 6, the cooker body 21, the pot 22 detachably accommodated in the cooker body 21, a lid 23 that covers the upper surface opening of the cooker body 21 so as to be openable and closable, and the lid 23 A cylindrical wall 213 provided between the periphery of the steam hole 210 of the outer lid 25 constituting the upper surface of the outer cover 25 and the periphery of the steam hole 211 of the lid cover 26 constituting the inner surface of the lid 23, and the inside of the cylindrical 213 wall And a steam cylinder 212 provided in the steam hole 211 portion of the lid cover 26. The steam cylinder 212 has an exhaust port 214 in the upper part of the side wall, a vent hole 215 opening inwardly on the lower surface, and an upper side of the exhaust port 214. It is composed of the provided eaves part 216.

JP-A-8-154819

  However, in the conventional configuration of FIG. 6, the bubble-like rice cake generated from the inside of the pot 22 during rice cooking passes through the vent 215 on the lower surface of the steam tube 212 together with the flow of steam, and the exhaust port at the upper part of the side wall. 214 is exhausted, but the eaves 215, the upper wall portion 216 of the exhaust port 214, the cylindrical wall 213, and the lower surface of the outer lid 25 are lower in temperature than the inside of the pan 22. Or the upper eaves 216 of the exhaust port 214, the cylindrical wall 213, or the lower surface of the outer lid 25, and defoamed to become a liquid rice cake. From the inside of the pot 22 or accumulated in the space formed by the packing 29, the lid cover 26, and the steam cylinder 212, the rice cake is difficult to dry and stick and difficult to care for. Had.

  The present invention solves the above-described conventional problems, and reduces the amount of liquid waste that accumulates in the space portion of the steam passage and improves the care of the space portion of the steam passage, while at the time of cooking and keeping warm. It is an object of the present invention to provide a rice cooker in which water drops from the steam passage portion are reduced when the lid is opened and closed.

  In order to solve the above-described conventional problems, the rice cooker of the present invention is provided on the lower surface side of the outer lid so as to surround the steam hole and the steam hole provided in the outer lid constituting the upper surface portion of the lid body. A cylindrical wall, a ring-shaped packing disposed on an end surface of the cylindrical wall, a heating plate provided below the lid and covering the upper surface opening of the pan and having a steam hole, and the cylindrical wall A cylindrical hollow body valve holder provided on the inner side and having a valve for closing the lower surface thereof, and at least a part of the hinge side of the ring packing is configured to be closer to the outer surface of the valve holder than the other part. It is a thing.

  As a result, a space between the steam passage formed by pressing the ring-shaped packing at the outer periphery of the steam hole provided in the heating plate and the valve holder that is mounted apart from the ring-shaped packing on the end surface of the cylindrical wall is provided. The collected liquid rice cake flows back into the pan through the gap between the ring-shaped packing and the valve holder, so that the rice cake is less likely to dry out and become difficult to fix, and the careability can be improved.

  The rice cooker of the present invention can improve the care of the steam passage and can reduce dew dripping when the lid is opened and closed.

Sectional drawing which shows the rice cooker in Embodiment 1 of this invention. Sectional drawing of the steam passage part of the rice cooker in Embodiment 1 of this invention. Sectional drawing which shows the principal part which shows the rice cooker in Embodiment 1 of this invention. Sectional drawing which shows the rice cooker in Embodiment 2 of this invention. Sectional drawing of the steam passage part of the rice cooker in Embodiment 2 of this invention. Main part sectional drawing of the rice cooker in a prior art example

  1st invention is the rice cooker main body of the upper surface opening which accommodates a pan, the cover body which covers the upper surface opening part of the said rice cooker body so that opening and closing is possible, and the said cover body is pivotally supported so that opening and closing is possible with respect to the said rice cooker body. A hinge portion, a locking means for the lid, a vapor hole provided in the outer lid constituting the upper surface portion of the lid, and a cylindrical shape provided on the lower surface side of the outer lid so as to surround the vapor hole A wall, a ring-shaped packing disposed on an end surface of the cylindrical wall, a heating plate provided below the lid and covering a top opening of the pan and having a steam hole, and an inner side of the cylindrical wall A cylindrical hollow body valve holder having a valve for closing the lower surface of the ring-shaped packing, and at least a part on the hinge side of the ring packing is closer to the outer surface of the valve holder than the other part. The steam generated from the pan during cooking will surround the steam hole in the outer lid. Flows upward from below along the outer surface of the valve holder through a gap with the ring-shaped packing on the end surface of the cylindrical wall on the lower surface of the lid, and then reaches the lower surface of the outer lid. It is discharged out of the rice cooker body through the hole.

  In addition, the bubble-like rice bowl generated from the inside of the pan during cooking flows along with the flow of the steam from the bottom to the top along the outer surface of the valve holder. It flows down to the inside of the pan, or accumulates in the valve holder and disappears to become a liquid rice bowl, and the valve is lowered by the weight of the rice bowl and returned to the inside of the pan to prevent spilling out of the rice cooker body. In addition, it is less likely that the nap is dried and hard to be fixed in the steam passage portion, and the careability can be improved.

  In addition, in the ring-shaped packing on the end surface of the cylindrical wall on the lower surface side of the outer lid, a space is formed so that at least a part on the hinge side is closer to the other part of the outer surface of the valve holder. Even if dew adheres to the cylindrical wall provided on the outer lid, dew can be accumulated in the space, so that dew dripping when the lid is opened and closed can be reduced.

  When keeping warm, the lower surface of the valve holder is closed with a valve, and at least a part on the hinge side is provided closer to the other part of the outer surface of the valve holder in the ring packing on the end face of the cylindrical wall. The heat of rice is not easily transmitted outside the rice cooker body using air as a medium. Therefore, the temperature of the rice in the pan is hardly affected by the outside air, and the temperature is maintained. The humidity in the pan is also difficult to come out of the main body of the rice cooker, so that the drying of the rice can be prevented.

  In the second invention, in particular, in the first invention, a rib is provided from the upper part to the lower part of the inner surface on the hinge part side of the cylindrical wall, and the tip of the rib is disposed close to the outer surface of the valve holder. By forming a space that is surrounded by four directions in the passage portion, even if dew adheres to the steam passage portion of the cylindrical wall during heat insulation, dew can be accumulated in the space surrounded by the four directions, so the lid can be opened and closed. Time dew dripping can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1, 2 and 3 show a rice cooker according to Embodiment 1 of the present invention. In the figure, 1 is a pan for adding rice and water, 2 is a rice cooker main body with the pan 1 being detachably opened on the top surface, 3 is a lid that covers the top opening of the rice cooker body 2 so as to be openable and closable, and this lid 3 Has a hinge portion 4 that is pivotally supported behind the rice cooker body 2 so as to be openable and closable with respect to the rice cooker body 2, and a means for locking the lid 3 is provided in front of the rice cooker body 2. A steam hole 6 is provided in an outer lid 5 made of synthetic resin that constitutes the upper surface of the lid 3. A cylindrical wall A7a is provided on the lower surface side of the outer lid 5 so as to surround the vapor hole 6, and a cylindrical wall B7 is provided outside the cylindrical wall A7a, and a synthetic rubber packing is provided on the end surface of the cylindrical wall B7. 8 is fitted in the recess. An aluminum heating plate 9 provided to cover the upper surface opening of the pan 1 is provided below the lid 3, and the heating plate 9 has the same position as the heating lid heater 15 and the steam hole 6 of the outer lid. A steam hole 10 for guiding the steam in the pan 1 to the outside is provided. The packing 8 is pressed against the plane of the outer peripheral portion of the steam hole 10 provided in the heating plate 9 and hermetically seals the steam so that it does not leak into the lid 3, and steam generated from the pot 1 during rice cooking. A steam passage portion 11 is configured to discharge from the steam hole 6 of the outer lid 5 to the outside of the rice cooker body 2. Inside the lid body 3, a heat insulating material 16 is disposed so as to surround the steam passage portion 11. A valve holder 12 is a hollow body of a cylindrical wall C12a made of synthetic resin, and is configured by a valve 13 that is provided with an opening on the lower surface and is locked at the center of the cross-shaped rib to close the lower surface.

  The rib a14a is provided between the cylindrical wall A7a and the cylindrical wall B7 on the lower surface side of the outer lid 5, and the tip of the valve holder 12 provided in the steam passage portion 11 from the steam hole 10 of the heating plate By contacting the rib 8 a on the lower surface side of the lid 5, convex portions are provided at four equal positions on the outer periphery of the cylindrical wall C 12 a of the valve holder 12 at the same position as the packing 8, and engaged with the packing 8. A gap is provided between the valve holder 12 and the packing 8. Further, a packing convex portion 8 a is provided at least at a part of the packing 8 on the hinge side so as to be close to the cylindrical wall C 12 a of the valve holder 12.

  About the rice cooker comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. First, when rice is cooked in the above configuration, steam generated from the inside of the pan 1 during cooking is separated from the packing 8 on the end surface of the cylindrical wall B7 on the lower surface side of the outer lid surrounding the steam hole 6 of the outer lid 5, and is equipped. Flow from the lower side of the steam passage portion 11 along the outer surface of the valve holder 12 through the gap between the valve holder 12 and the lower surface of the outer lid 5, and then flow downward along the cylindrical wall A7a. 5 is discharged to the outside of the rice cooker body 2 through the steam hole 6. Moreover, after the foamy rice bowl which generate | occur | produced from the inside of the pan 1 during rice cooking flows upward from the downward direction of the steam channel | path part 11 along the outer surface of the valve holder 12 with the flow of steam, and reaches the lower surface of the outer lid 5, Since it flows downward along the cylindrical wall A7a and has viscosity, it accumulates in the valve holder 12 and disappears to form a liquid rice cake. The valve 13 on the lower surface of the valve holder 12 is lowered by the dead weight of the collected liquid rice cake and is refluxed into the pan 1, whereby the amount of spilling out of the rice cooker body 2 can be reduced. In addition, the rice cake flows upward from below the steam passage portion 11 along the outer surface of the valve holder 12, but flows from top to bottom contrary to the flow of steam due to its own weight, and the packing 8 and the valve holder 12. Since it returns directly into the pot 1 through the gap, it is less likely that the steam passage 11 will dry out and become difficult to stick, and the valve holder 12 can be removed and wiped off with a cloth, etc. Can be improved. This can obtain the same effect even when more water than the designed water amount is hydrated.

  Moreover, even when dew adheres to the cylindrical wall B7 provided on the lower surface side of the outer lid surrounding the steam hole 6 of the outer lid 5 when cooking or keeping warm, when the outer lid 5 is opened, most dew Although it can be dropped into the pan 1 through a gap with the valve holder 12 that is mounted on the packing 8 on the end surface of the cylindrical wall B7 on the lower surface side, it can be dropped into the pan 1 even when the outer lid 5 is fully opened. The dew that has not been dripped is accumulated in the space because the packing protrusion 8a is close to the cylindrical wall C12a of the valve holder 12 at least at a part of the hinge-side packing 8 and close to the cylindrical wall C12a. , Dew dripping at the time of opening and closing the lid can be reduced.

  Further, at the time of heat insulation, the lower surface of the valve holder 12 is closed with the valve 13, and at least a part on the hinge side is provided closer to the other part of the outer surface of the valve holder 12 in the packing convex portion 8a on the end surface of the cylindrical wall B7. Therefore, the heat of the rice in the pan 1 is hardly transmitted to the outside of the rice cooker body 2 using air as a medium. Therefore, the temperature of the rice in the pan 1 is not easily affected by the outside air, and the temperature is maintained. The humidity in the pan 1 is also difficult to go out of the rice cooker body 2, thereby preventing the rice from drying.

(Embodiment 2)
4 and 5 show a rice cooker according to Embodiment 2 of the present invention. Since the structure of the rice cooker is the same as that of Embodiment 1, the description thereof will be omitted, and the description will focus on the differences.

  Two ribs a14a are provided between the cylindrical wall A7a and the cylindrical wall B7 on the lower surface side of the outer lid 5 so as to be in the same position as both ends of the packing convex portion 8a provided on at least a part on the hinge side of the packing 8. The rib 14 is provided from the tip of the rib a14a to the end of the packing convex portion 8a along the cylindrical wall B7 of the steam passage portion 11, and the packing convex portion 8a is close to the cylindrical wall C12a of the valve holder 12. The rib a14a is provided to have the same height as the packing convex portion 8a so that a space surrounded by four directions is formed on the hinge side of the steam passage portion 11.

  About the rice cooker comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. First, when rice is cooked in the above configuration, the outer lid 5 is opened even when dew adheres to the cylindrical wall B7 provided on the lower side of the outer lid surrounding the vapor hole 6 of the outer lid 5 during rice cooking or heat insulation. Most of the dew is dropped into the pan 1 from the gap between the rib a14a and the rib 14 along the rib 14 with the valve holder 12 mounted on the packing 8 on the end surface of the cylindrical wall B7 on the lower surface of the outer lid. However, even if the outer lid 5 is fully opened, the dew that has not dropped into the pan 1 can be reliably accumulated in the space surrounded by the four directions on the hinge side of the steam passage 11. , Dew dripping at the time of opening and closing the lid can be reduced.

  As described above, the rice cooker according to the present invention can improve the care of the steam passage and reduce the amount of dew dripping when the lid is opened and closed. It can also be used for applications.

DESCRIPTION OF SYMBOLS 1 Pan 2 Rice cooker main body 3 Cover body 4 Hinge part 5 Outer cover 6 Steam hole 7 Cylindrical wall B
7a Cylindrical wall A
8 Packing 8a Packing convex part 9 Heating plate 10 Steam hole 11 Steam passage part 12 Valve holder 12a Cylindrical wall C
13 Valve 14 Rib 14a Rib a
15 Lid heater 16 Heat insulation

Claims (2)

A rice cooker body with a top opening for storing the pan;
A lid that freely opens and closes the upper surface opening of the rice cooker body;
A hinge part that pivotally supports the lid so as to be freely opened and closed with respect to the rice cooker body;
Locking means for the lid,
Steam holes provided in the outer lid constituting the upper surface of the lid,
A cylindrical wall provided on the lower side of the outer lid so as to surround the vapor hole;
A ring-shaped packing disposed on an end face of the cylindrical wall;
A heating plate provided below the lid body and covering the top opening of the pan and having a steam hole;
A cylindrical hollow body valve holder having a valve provided inside the cylindrical wall and closing the lower surface thereof,
In the ring-shaped packing, at least a part on the hinge side is configured to be closer to the outer surface of the valve holder than the other part. The rice cooker according to claim 1, wherein ribs are provided from an upper part to a lower part of an inner surface on the hinge portion side of the cylindrical wall, and a tip of the rib is configured to be close to an outer surface of the valve holder.

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