JP2006087790A - Pressure rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressure rice cooker excellent in cleaning a radiator plate. <P>SOLUTION: The pressure rice cooker is constituted in such a way that a lid 2 attached to a rice cooker body 1 has the radiator plate 4 to be removably mounted on the lower surface of a lid body 3; the lid body 3 includes a steam inlet 35 facing the steam hole 43 of the radiator plate 4; a steam passage is formed from the steam inlet 35 to an outer part in the lid 2; the steam inlet 35 is allowed to communicate with the steam hole 43 via a pressure regulating valve 60 which is inserted to the steam inlet 35; and the pressure regulating valve 60 is attached to the lid body 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  This invention relates to the pressure type rice cooker which makes the inside of an inner pot the atmospheric pressure or more at the time of rice cooking.

  Conventionally, as this type of pressure rice cooker, as shown in FIG. 8, a heater mounting plate 82 is provided on the lower surface of a lid ring member 81 constituting the lid main body 80, and a heat radiating plate facing the heater mounting plate 82. There is one in which 83 is detachably attached to the lower surface of the lid ring member 81 and the inner pan 84 is closed by the heat radiating plate 83 (Patent Document 1).

  A steam hole 85 with a burring portion is formed in the heat radiating plate 83. The lid main body 80 is provided with a steam inlet 86 facing the steam hole 85. The steam inlet 86 is formed in the lid ring member 81, and a pressure regulating valve 87 for adjusting the pressure in the inner pot 84 is inserted. The pressure regulating valve 87 includes a valve seat member 89 provided with a valve hole 88, a valve body 90 that closes the valve hole 88 with its own weight, and a valve cover member 91 that covers the valve body 90. The valve seat member 89 is detachably fitted to the inner peripheral surface of the steam hole 85, and the valve cover member 91 is detachably fitted to the outer peripheral surface of the steam hole 85.

Japanese Patent Laying-Open No. 2004-33427 (see FIG. 1)

  However, in the structure as described in Patent Document 1, when the heat radiating plate 83 is cleaned, the valve seat member 89 and the valve cover member 91 are fitted in the steam holes 85 of the heat radiating plate 83. I can't wash every corner. For this reason, in order to clean the heat sink 83 to every corner, the valve seat member 89 and the valve cover member 91 must be removed from the steam hole 85. Further, even if the valve seat member 89 and the valve cover member 91 are removed from the steam hole 85, the burring portion of the steam hole 85 protrudes from the upper surface of the heat radiating plate 83. It is difficult to wipe. Thus, the pressure-type rice cooker as described in Patent Document 1 has a problem that the heat-cleaning plate is poorly cleaned.

  Then, the subject of this invention is providing the pressure type rice cooker excellent in the cleanability of a heat sink.

  As a means for solving the above-mentioned problems, the present invention provides a lid attached to a rice cooker body having a heat radiating plate detachably attached to the lower surface of the lid main body, and a steam inlet facing the steam hole of the heat radiating plate. In the pressure rice cooker provided in the main body, provided with a steam passage extending from the steam inlet to the outside in the lid, and communicating the steam inlet and the steam hole through a pressure regulating valve inserted into the steam inlet. A configuration is adopted in which a pressure valve is attached to the lid body, and a heat radiating portion facing the inner pot is formed in a flat plate shape among the heat radiating plates.

  According to this configuration, since the pressure regulating valve is attached to the lid main body, it is not necessary to provide an attachment portion (burring portion or the like) for the constituent member of the pressure regulating valve on the heat radiating plate. Then, since the heat radiating part facing the inner pot is formed in a flat plate shape among the heat radiating plates, the heat radiating part can be easily cleaned with a sponge or the like, and the cloth width is not caught when wiping the cloth of the heat radiating part.

  In the above configuration, the pressure regulating valve is configured by a valve body and a cylindrical valve seat member provided with a valve hole portion on which the valve body is mounted, and the valve seat member is attached to the lid body, and the valve seat member By adopting a configuration in which the steam inlet and the steam hole communicate with each other, even if the heat radiating plate is removed from the lid body, the pressure regulating valve remains on the lid body side. The heat sink can be cleaned without requiring assembly.

  As mentioned above, according to this invention, since the washing | cleaning and cloth wiping of the said heat sink become easy, the pressure type rice cooker excellent in the cleanability of a heat sink can be provided.

  Hereinafter, the pressure type rice cooker which concerns on 1st Embodiment of this invention is demonstrated based on FIGS. 1-4. As shown in FIGS. 1 and 2, the pressure rice cooker includes a rice cooker body 1 and a lid 2 attached to the rice cooker body 1. The lid 2 includes a heat radiating plate 4 that is detachably attached to the lower surface of the lid body 3.

  The lid body 3 is of a known configuration in which an upper lid member 31 and a lid ring member 32 are coupled and a heater mounting plate 33 is attached to the lower surface of the lid ring member 32.

  The heat radiating plate 4 has a flat disc-shaped heat radiating portion 41 facing the inner pot 5 of the rice cooker body 1 and a packing mounting portion 42 provided continuously to the outer peripheral edge. The heat radiation part 41 is provided with a steam hole 43 facing the inner pot 5. The packing mounting portion 42 includes a rising portion 44, an outward projecting portion 45 formed at the upper end thereof, and a bent edge 46 formed downward at the outer end of the projecting portion 45. A lid packing 47 that keeps the lid 2 and the inner pot 5 airtight in a state where the lid 2 is closed is integrally combined with the packing mounting portion 42 by a heat radiating plate ring 48.

  In a state where the lid packing 47 and the heat sink ring 48 are assembled, the packing mounting portion 42 is fitted into the annular mounting portion 32 a provided on the lower surface of the lid ring member 32, and the claw portion 48 a of the heat sink plate 48 is attached to the lid ring member 32. The heat radiating plate 4 is detachably attached to the lid body 3 by being pressed by the movable hook portion 34 provided. In this mounted state, the heat radiating portion 41 faces the heater mounting plate 33, and the steam hole 43 faces the opening 33 a of the heater mounting plate 33 and the steam inlet 35 formed in the lid ring member 32.

  The steam inlet 35 is connected to the lower surface of the flange edge portion 35a, the lower surface of the heater mounting plate 33, the opening portion 33a of the heater mounting plate 33, and the flange edge portion 35a through the hole 35b (see FIG. 4) of the flange edge portion 35a. And a facing gap 38 surrounded by an annular packing portion 37 interposed between the outer periphery of the heater mounting plate 33 and the vicinity of the outer periphery of the heat radiating portion 41. .

  The facing gap 38 communicates with a pocket 50 formed in the lid ring member 32 through a communication port 33 b provided in the heater mounting plate 33 and a rubber port member 39. A steam port cover 51 is detachably attached to the pocket 50. As described above, the lid 2 is provided with a steam passage that extends from the steam inlet 35 to the outside through the facing gap 38, the reservoir 50, and the steam port cover 51. Of course, the steam passage is not limited to such a configuration.

  Moreover, as shown in FIG. 3, FIG. 4, the steam inlet 35 is provided so that the pressure regulation valve 60 for adjusting the pressure in the inner pot 5 can be inserted. The pressure regulating valve 60 includes a ball valve body 61 and a valve seat member 62.

  The valve seat member 62 includes a cylindrical valve seat portion 65 provided on the upper surface with a valve hole portion 63 that opens in the vertical direction and a ball receiving portion 64 that holds the ball valve body 61 on the valve hole portion 63, and this And a flange portion 66 provided on the outer periphery of the lower end of the valve seat portion 65. On the outer peripheral upper end of the flange portion 66, outwardly engaging claws 66a, 66a, 66a are formed at three positions of the front portion and the left and right side portions, and between the engaging claws, the standing wall portions 66b, 66b, 66b are formed. It is erected. In addition, a protruding piece 66c that protrudes outward is formed at the upper end of the standing wall 66b located at the rear outer periphery of the flange 66. The engaging claws 66a, 66a, 66a are respectively engaged with the claw receiving portions 35c, 35c, 35c formed on the upper surface of the flange edge portion 35a in the steam inlet 35. The projecting piece 66c is fitted into a positioning notch 35d formed in the flange 35a.

  In the pressure regulating valve 60, with the ball valve body 61 placed on the ball receiving portion 64, the protruding piece portion 66c is fitted into the notch 35d, and the engaging claws 66a, 66a, 66a are engaged with the claw receiving portions 35c, 35c, 35c. By being stopped, the lid body 3 is attached. When the heat radiating plate 4 is attached to the lid body 3 in this attached state, the valve seat seal 66 d detachably attached to the lower end surface of the flange portion 66 is brought into close contact with the upper surface of the heat radiating plate 4 so as to surround the steam hole 43. The steam hole 43 and the steam inlet 35 are communicated in an airtight manner via the valve seat member 62 of the pressure valve 60. Thereby, the pressure sensor (illustration omitted) with which the lid body 3 was equipped detects abnormal pressure in the inner pot 5 at the time of rice cooking. When the pressure sensor detects abnormal pressure and activates the solenoid 52, the ball valve body 61 is pushed away from the valve hole 63 by the plunger 54 via the plunger packing 53 that closes the plunger insertion port of the steam inlet 35. It is done.

  According to the above configuration, even if the heat radiating plate 4 is removed, the pressure regulating valve 60 remains on the lid body 3 side as it is, so that the heat radiating plate 4 can be cleaned without requiring the pressure regulating valve 60 to be disassembled and assembled. . Moreover, since the heat radiating part 41 is formed in a flat plate shape, cleaning of the heat radiating plate 4 and subsequent wiping can be easily performed.

  In the present invention, the heat radiating portion can be provided with a bent portion having no edge. For example, in the first embodiment, in order to obtain the strength of the heat radiating plate 4, the heat radiating portion 41 is provided with an annular reinforcing portion 49 bent into a smooth mountain-shaped cross section (see FIGS. 2 and 4). . Further, as means for attaching the constituent members of the pressure regulating valve, other means such as screws and rivets for the lid main body (for example, the lid ring member 32) can be used.

  Further, the pressure regulating valve inserted into the steam inlet is not limited to the pressure regulating valve 60. For example, the second embodiment shown in FIGS. 5 to 7 can be used. Hereinafter, only differences between the second embodiment and the first embodiment will be described, and common components will be denoted by the same reference numerals.

  The pressure regulating valve 70 inserted into the steam inlet 35 is a well-known one that includes a valve body 71, a valve seat member 72, and a coil spring 73. The valve hole portion 74 of the valve seat member 72 is provided with a length in the vertical direction. The valve body 71 has a valve leg portion 75 that is gently inserted into the valve hole portion 74 and a valve head portion 77 on which a rubber seal 76 for closing the steam hole 43 is detachably mounted.

  With the valve seat member 72 attached to the steam inlet 35, the upper end of the coil spring 73 is fitted into the lower edge concave portion 74a of the valve hole portion 74, and the valve leg portion 75 of the valve body 71 is passed through the coil spring 73 to the valve hole portion. 74, the lower end of the coil spring 73 is fitted into the upper surface recess 77 a of the valve head 77, and the heat sink 4 is attached to the lid body 3 while compressing the coil spring 73, the pressure regulating valve 70 is attached to the lid body 3. In the case of the pressure regulating valve 70, the valve body 71 is not operated by a solenoid, and the configuration related to this is omitted.

The whole perspective view showing the state where the lid of the pressure type rice cooker concerning a 1st embodiment was opened. The expanded vertical side view of the cover part of 1st Embodiment. FIG. 3 is an enlarged longitudinal side view of a pressure regulating valve portion in a valve open state of FIG. 2. The schematic exploded perspective view which showed the state which the valve-seat seal | sticker of the pressure regulation valve part of 1st Embodiment removed. The expansion longitudinal section side view of the lid part concerning a 2nd embodiment. FIG. 6 is an enlarged vertical side view of a pressure regulating valve portion in a valve-closed state in FIG. 5. The schematic exploded perspective view which showed the state from which the valve seat seal and rubber seal of the pressure regulation valve part of 2nd Embodiment removed. The partial vertical side view of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rice cooker main body 2 Lid 3 Lid main body 4 Heat sink 5 Inner pan 31 Upper lid member 32 Lid ring member 32a Annular mounting part 33 Heater mounting plate 33a Opening part 33b Communication port 34 Hook part 35 Steam inlet 35a Edge 35b Opening hole 35c Claw receiving portion 35d Notch 36 Heater packing 37 Annular packing portion 38 Face-to-face clearance 39 Rubber port member 41 Heat radiating portion 42 Packing mounting portion 43 Steam hole 44 Rising portion 45 Overhang portion 46 Bending edge 47 Lid packing 48 Heat sink plate ring 48a Claw portion 49 Reinforcing part 50 Snake pool 51 Steam port cover 52 Solenoid 53 Plunger packing 54 Plunger 60 Pressure regulating valve 61 Ball valve body 62 Valve seat member 63 Valve hole part 64 Ball receiving part 65 Valve seat part 66 Flange part 66a Engaging claw 66b Standing wall part 66c Projection piece 66d Valve seat seal 70 Pressure regulating valve 71 Valve body 72 Valve seat member 3 coil spring 74 valve hole 74a lower edge recess 75 valve leg 76 rubber seal 77 valve head 77a upper surface recess 80 lid body 81 lid ring member 82 heater mounting plate 83 heat sink 84 inner pan 85 steam hole 86 steam inlet 87 pressure regulating valve 88 Valve hole portion 89 Valve seat member 90 Valve body 91 Valve cover member

Claims (2)

  The lid attached to the rice cooker body includes a heat radiating plate that is detachably attached to the lower surface of the lid main body, and a steam inlet facing the steam hole of the heat radiating plate is provided in the lid main body, and the steam that continues from the steam inlet to the outside In the pressure rice cooker in which a passage is provided in the lid and the steam inlet and the steam hole communicate with each other via a pressure regulating valve inserted into the steam inlet, the pressure regulating valve is attached to the lid body, and the heat radiating plate Among these, the pressure type rice cooker characterized by forming the heat-radiating part which faces an inner pot in flat form.   The pressure regulating valve is constituted by a valve body and a cylindrical valve seat member provided with a valve hole portion on which the valve body is mounted, and the valve seat member is attached to the lid body, and the steam inlet is formed by the valve seat member. The pressure-type rice cooker according to claim 1, wherein the steam hole communicates with the steam hole.

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