JP5587243B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device that heats and cooks a predetermined food.

  In this type of cooking device, a pot for storing the food is detachably accommodated in the cooking device body. Then, by controlling the heating means arranged in the cooker body according to a preset program, the cooked food is heated through the pan to perform predetermined cooking. The steam generated in the pan during cooking is exhausted to the outside through an exhaust passage formed in a lid that seals the upper end opening of the pan.

  During cooking by the heating cooker, there is a possibility that the cooked product floats on the foam generated in the pan and clogs the vent hole that is the entrance of the exhaust passage. When clogging occurs, the steam cannot be exhausted, which increases the pressure in the pan.

  In order to prevent this problem, in Patent Literature 1 and Patent Literature 2, a filter member that covers the vent hole is disposed on the inner lid, which is a section screen facing the inside of the lid of the lid. This filter member has a plurality of filter holes at positions that coincide with the vent holes in the axial direction, and is detachably attached to the inner lid. This filter member can prevent a ventilation hole from being clogged with the cereal which floats in water, even when a user cooks the cereal rice which mixed the cereal with white rice.

  In recent years, pack cooking that uses a rice cooker, which is one of the cookers, to cook rice while cooking rice has become popular. In this pack cooking, food is put into a bag, and the bag is set in a pot together with rice and water, whereby the food is cooked using the heat of rice cooking.

  However, in the rice cooker, the cooked rice expands and the volume increases as the cooking progresses. The air inside the pack cooking bag expands due to heat during cooking. In addition, the bag may be in close contact with the filter member and block the filter hole due to these actions. In this case, since the steam in the pan cannot be exhausted, there is a problem that the inside of the pan becomes high pressure. In addition, although the manufacturer of this kind of cooker has urged the user to prohibit pack cooking according to an instruction manual or the like, it cannot reliably prevent misuse by the user.

JP 2007-29403 A JP 2009-291262 A

  This invention makes it a subject to provide the heating cooker which can prevent reliably that it becomes impossible to exhaust the vapor | steam in a pan by misuse of a user.

In order to solve the above-mentioned problems, a cooking device according to the present invention comprises a bottomed cylindrical pan having an open upper end, a main body that detachably accommodates the pan, and a pan that is disposed in the main body and heats the pan. Heating means, a lid that is disposed on the main body and seals the upper end opening of the pan so as to be openable, and an exhaust passage that is provided on the lid and communicates with the outside and a vent hole facing the inside of the pan. In the heating cooker, a filter member that covers the ventilation hole and has a plurality of filter holes is disposed on the section screen of the lid that faces the inside of the pan, and the filter member is separated from the bottom of the pan. A raised portion is formed on the raised portion, and the raised portion is not provided with the filter hole at a position that coincides with the vent hole of the lid body in the axial direction. configure gap, which is smaller than the diameter of the filter holes It is.

  In this heating cooker, since the filter member is disposed so as to cover the vent hole that is the inlet of the exhaust passage, it is possible to prevent the food from being clogged in the vent hole. Moreover, since the filter member is provided with a raised portion that protrudes away from the bottom of the pan, the filter hole can be separated from the food. Therefore, it can suppress that the bag for pack cooking by misuse blocks a filter hole. In addition, the step formed by the raised portions can prevent the bag from being in close contact with the filter member and closing all the filter holes. As a result, it is possible to secure an exhaust path for steam in the pan. Moreover, since the strength of the filter member can be increased by the shape provided with the raised portions, damage during cleaning can be prevented.

In this heating cooker, the filter hole is not provided in the raised portion of the filter member at a position that coincides with the vent hole of the lid in the axial direction . Here, when the filter hole is provided at a position coinciding with the vent hole in the axial direction, the exhaust amount at that portion becomes the largest. In this case, the cereals in the cereal rice are concentrated and clogging is likely to occur. Therefore, as a configuration in which no filter hole is provided in that portion, the exhaust path is complicated, so that concentrated grains are prevented from being concentrated and the occurrence of clogging can be suppressed. Moreover, since the distance from the filter hole to the vent hole can be increased, the occurrence of spillage through the exhaust passage can be suppressed.

Then, the gap between the upper end and the facing surface of the raised portion of the filter member is made smaller than the diameter of the filter holes. Here, if the filter hole of the filter member is a small-diameter hole through which millet cannot pass, in addition to clogging the grain and the like in the filter hole, it becomes difficult to clean the inner periphery of the filter hole. For this reason, it is preferable that the filter hole has such a size that small grains (for example, beans) having a size that easily blocks the exhaust path cannot pass. On the other hand, since such a filter hole can pass small cereals, the vent hole may be clogged. Therefore, the clogging of the cereal into the ventilation hole can be reduced by making the clearance between the raised portion and the opposing surface small so that the cereals smaller than the filter hole do not pass through.

Moreover, in order to solve the said subject, the cooking-by-heating machine of this invention is the bottomed cylindrical pan which opened the upper end, the main body which accommodates this pan so that attachment or detachment is possible, It arrange | positions in this main body, and the said pan is arrange | positioned. A heating means for heating; a lid disposed on the main body for sealing the upper end opening of the pan so as to be openable; and an exhaust passage provided on the lid for communicating the outside with the vent hole facing the inside of the pan. In the heating cooker provided, on the section screen facing the inside of the pan of the lid, a filter member that covers the vent hole and has a plurality of filter holes is disposed, and the filter member is provided from the bottom of the pan. Protruding portions that protrude upward so as to be separated from each other are provided, and the filter member includes a bottom surface portion having the protruding portions and a side surface portion erected on an outer peripheral edge of the bottom surface portion. Side filter holes, and the side surface holes are formed on the bottom surface. It has a configuration which projects a projection covering the filter holes outwardly.
In this heating cooker, since the filter member is disposed so as to cover the vent hole that is the inlet of the exhaust passage, it is possible to prevent the food from being clogged in the vent hole. Moreover, since the filter member is provided with a raised portion that protrudes away from the bottom of the pan, the filter hole can be separated from the food. Therefore, it can suppress that the bag for pack cooking by misuse blocks a filter hole. In addition, the step formed by the raised portions can prevent the bag from being in close contact with the filter member and closing all the filter holes. As a result, it is possible to secure an exhaust path for steam in the pan. Moreover, since the strength of the filter member can be increased by the shape provided with the raised portions, damage during cleaning can be prevented.
And since the filter member has a bottom surface portion having the raised portion and a side surface portion standing on the outer peripheral edge of the bottom surface portion, and further provided with a plurality of side surface filter holes in the side surface portion, The side filter hole formed in this way is hardly blocked by a bag. Therefore, the exhaust path of the steam in the pan can be secured.
Furthermore, since the protrusion which covers the said side surface filter hole is protruded outwardly in the said bottom face part, it can prevent reliably that a bag wraps around the side surface part of a filter member and block | closes a side surface filter hole.

Moreover, in order to solve the said subject, the cooking-by-heating machine of this invention is the bottomed cylindrical pan which opened the upper end, the main body which accommodates this pan so that attachment or detachment is possible, It arrange | positions in this main body, and the said pan is arrange | positioned. A heating means for heating; a lid disposed on the main body for sealing the upper end opening of the pan so as to be openable; and an exhaust passage provided on the lid for communicating the outside with the vent hole facing the inside of the pan. In the heating cooker provided, on the section screen facing the inside of the pan of the lid, a filter member that covers the vent hole and has a plurality of filter holes is disposed, and the filter member is provided from the bottom of the pan. The filter member is provided with a raised portion that protrudes upward so as to be separated from the filter base member mounted on the section screen of the lid, and the filtration position that covers the vent hole and the non-filter that opens the vent hole It can be moved to the position In contact with an upper surface on the lid of the filter base member has a configuration in which a through groove ends opening recessed downward.
In this heating cooker, since the filter member is disposed so as to cover the vent hole that is the inlet of the exhaust passage, it is possible to prevent the food from being clogged in the vent hole. Moreover, since the filter member is provided with a raised portion that protrudes away from the bottom of the pan, the filter hole can be separated from the food. Therefore, it can suppress that the bag for pack cooking by misuse blocks a filter hole. In addition, the step formed by the raised portions can prevent the bag from being in close contact with the filter member and closing all the filter holes. As a result, it is possible to secure an exhaust path for steam in the pan. Moreover, since the strength of the filter member can be increased by the shape provided with the raised portions, damage during cleaning can be prevented.
And the said filter member is arrange | positioned with respect to the filter base member with which the partition screen of the said cover body was mounted | worn so that a movement to the non-filtration position which opened the said ventilation hole and the filtration position which covered the said ventilation hole was open | released. Therefore, since the cleaning operation of the filter member becomes easy, the convenience in use can be improved.
Furthermore, since the through-grooves of both end openings that are recessed downward are provided on the upper surface of the filter base member that is in contact with the lid body, water can be passed through the through-grooves during cleaning. This can be further improved.

Moreover, in order to solve the said subject, the cooking-by-heating machine of this invention is the bottomed cylindrical pan which opened the upper end, the main body which accommodates this pan so that attachment or detachment is possible, It arrange | positions in this main body, and the said pan is arranged. A heating means for heating; a lid disposed on the main body for sealing the upper end opening of the pan so as to be openable; and an exhaust passage provided on the lid for communicating the outside with the vent hole facing the inside of the pan. In the heating cooker provided, on the section screen facing the inside of the pan of the lid, a filter member that covers the vent hole and has a plurality of filter holes is disposed, and the filter member is provided from the bottom of the pan. The filter member is provided with a raised portion that protrudes upward so as to be separated from the filter base member mounted on the section screen of the lid, and the filtration position that covers the vent hole and the non-filter that opens the vent hole It can be moved to the position The filter member is slidably attached to the plate-like filter base member by sliding, and the filter member is attached to an edge of the filter base member that is located on the front side in the removal operation direction of the filter member. It is the structure which provided the recessed part recessed in an outer operation direction.
In this heating cooker, since the filter member is disposed so as to cover the vent hole that is the inlet of the exhaust passage, it is possible to prevent the food from being clogged in the vent hole. Moreover, since the filter member is provided with a raised portion that protrudes away from the bottom of the pan, the filter hole can be separated from the food. Therefore, it can suppress that the bag for pack cooking by misuse blocks a filter hole. In addition, the step formed by the raised portions can prevent the bag from being in close contact with the filter member and closing all the filter holes. As a result, it is possible to secure an exhaust path for steam in the pan. Moreover, since the strength of the filter member can be increased by the shape provided with the raised portions, damage during cleaning can be prevented.
And the said filter member is arrange | positioned with respect to the filter base member with which the partition screen of the said cover body was mounted | worn so that a movement to the non-filtration position which opened the said ventilation hole and the filtration position which covered the said ventilation hole was open | released . Therefore, since the cleaning operation of the filter member becomes easy, the convenience in use can be improved.
Further, the filter member is slidably attached to the plate-like filter base member by sliding, and the filter base member has an edge positioned on the front side of the filter member in the removing operation direction. Since the concave portion that is recessed in the member removing operation direction is provided , when removing the filter member from the filter base member, even if the user's finger collides with the filter base member, no pain is felt.

  In the heating cooker according to the present invention, since the filter member is disposed so as to cover the vent hole, it is possible to prevent the food from being clogged in the vent hole. In addition, since the filter member is provided with a raised portion, the pack cooking bag due to misuse can be prevented from blocking all the filter holes, and an exhaust path for steam in the pan can be secured. Moreover, since the strength of the filter member can be increased by the shape provided with the raised portions, damage during cleaning can be prevented.

It is sectional drawing which shows the rice cooker which is a heating cooker of embodiment which concerns on this invention. It is a perspective view which shows the structure of a cover body. It is sectional drawing which shows the structure of an inner cover. It is a perspective view which shows the structure of an inner cover. It is a disassembled perspective view which shows the structure of a filter set and a pressure regulation valve.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1: shows the pressure type rice cooker which is the heating cooker of embodiment which concerns on this invention. This rice cooker includes a rice cooker body 11 that detachably accommodates a bottomed cylindrical inner pot 10 that is electromagnetically heated, and a lid 21 that is rotatably attached to the rice cooker body 11. In the present invention, the vent holes 56 and 64 that are the inlets of the exhaust passage formed in the lid 21 are covered with the filter member 77 to prevent the vent holes 56 and 64 from being clogged and misused. Even if this is done, the filter hole 82 of the filter member 77 can be prevented from being blocked.

  The rice cooker body 11 includes an exterior body including a cylindrical body 12, a bottom body 13 that closes a lower end opening of the body 12, and a shoulder body 14 that is attached so as to cover the upper end opening of the body 12. . The shoulder body 14 includes an opening 15 for detachably arranging the inner pot 10 at a substantially central position, and an engagement receiving portion for maintaining the lid 21 in a closed state on the front side of the opening 15. (Not shown) is provided. In addition, a cylindrical inner cylinder 16 and a saucer-shaped protective frame 17 made of a non-conductive material are disposed in the opening 15 of the shoulder body 14. An induction heating coil 18 as a first heating means is disposed on the outer peripheral surface of the lower part of the protective frame 17 via a ferrite core 19. A cylinder heater (not shown) as second heating means is disposed on the outer periphery of the inner cylinder 16. Furthermore, the protective frame 17 is provided with an inner pot temperature sensor 20 which is a temperature detecting means for detecting the temperature of the inner pot 10 through the protective frame 17.

  The lid body 21 is rotatably attached to a hinge receiving portion formed on the back portion of the shoulder body 14, and closes the upper end opening of the rice cooker body 11 so as to be openable. The lid 21 includes an upper plate 22 that constitutes an outer surface material together with the exterior body of the rice cooker body 11, and a lower plate 26 that closes the bottom of the upper plate 22. A heat radiating plate 40 is disposed below the lower plate 26 located on the inner pot 10 side in the closed state, and an inner lid 47 is detachably disposed below the heat radiating plate 40. The lid body 21 includes a gap between the inside of the first pressure regulating valve 53 and the second pressure regulating valve 61 attached to the inner lid 47, the accommodation portions 31 and 36 of the lower plate 26 that accommodates these, An exhaust passage that communicates the inside of the inner pot 10 and the outside of the vessel is constituted by the gap with the heat radiating plate 40 and the path through the steam port unit 24.

  The upper plate 22 is provided with an operation member 23 for opening the lid 21 at the front. Further, a steam port unit 24 constituting an outlet of the exhaust passage is detachably disposed on the back portion of the upper plate 22. The steam port unit 24 is connected to a connected portion 28 of the lower plate 26 through a through hole formed in the upper plate 22 by a connecting portion 25 protruding downward.

  As shown in FIGS. 1 and 2, the lower plate 26 has a shape corresponding to the concave depression shape on the upper side of the shoulder body 14. On the back of the lower plate 26, there is provided a hinge connection portion 27 that is pivotally attached to a hinge receiving portion of the shoulder body 14. Further, on the back portion of the lower plate 26, a connected portion 28 that removably connects the connecting portion 25 of the steam port unit 24 is provided so as to be positioned below the steam port unit 24. A seal member 29 that seals between the heat sink 40 and the lower end opening of the connected portion 28 is disposed. Further, a lid lock member 30 that maintains the lid 21 in a closed state with respect to the rice cooker body 11 is rotatably attached to the front portion of the lower plate 26. The lid lock member 30 is biased to the engagement position by a kick spring, and the engagement with the engagement receiving portion is released when the operation member 23 is pushed.

  Further, the lower plate 26 is provided with a first pressure regulating valve accommodating portion 31 that accommodates the first pressure regulating valve 53 disposed in the inner lid 47. The first pressure regulating valve accommodating portion 31 has a cylindrical shape with upper and lower ends opened, a packing 32 is disposed at the upper end opening, and a seal member 33 that seals between the heat radiating plate 40 at the lower end opening. It is arranged. A stepping motor 34 that is a driving unit for the first pressure regulating valve 53 is disposed on the back side of the first pressure regulating valve housing 31. The stepping motor 34 is provided with a pressing member 35 that transmits the driving force to the first pressure regulating valve 53.

  Next to the first pressure regulating valve accommodating portion 31, a second pressure regulating valve accommodating portion 36 that accommodates the second pressure regulating valve 61 is provided. The second pressure regulating valve accommodating portion 36 has a dome shape with a lower end opening. A driving opening is provided in the front portion of the side wall, and the driving opening is closed by a packing 37. Note that the lower end opening of the second pressure regulating valve accommodating portion 36 is sealed between the heat radiating plate 40 and a sealing member (not shown), similarly to the first pressure regulating valve accommodating portion 31. On the front side of the second pressure regulating valve housing portion 36, a solenoid 38 that is a driving means for the second pressure regulating valve 61 is disposed. The solenoid 38 includes a rod that retracts when energized and advances when the energization is interrupted. The rod is provided with a pressing member 39 that presses the spherical member 67 of the second pressure regulating valve 61 located in the second pressure regulating valve accommodating portion 36 via the packing 37.

  The heat radiating plate 40 is made of metal, and a lid heater 41 as a third heating means is disposed on the upper surface thereof. The heat radiating plate 40 is provided with an opening 42 so as to be positioned below the connected portion 28, and the upper edge of the opening 42 is sealed by the seal member 29. Similarly, openings are provided below the accommodating portions 31 and 36, and these openings are sealed by the seal member 33. In addition, a seal member 43 that seals between the outer peripheral portion of the inner lid 47 is disposed on the outer peripheral portion of the heat radiating plate 40.

  As shown in FIG. 1, the lid 21 of the present embodiment is activated when the inner pot 10 has an abnormal pressure (for example, 1.50 atm) higher than the set pressure (1.30 atm). A safety valve 44 for exhausting air to the outside is provided. The safety valve 44 communicates between the pressure sensor 45 of the differential pressure type disposed on the lower plate 26 and the inside of the inner pot 10, and is sealed so that the exhaust space 52 between the heat radiating plate 40 and the inner lid 47 is partitioned. It is comprised by the sealing member to do. In addition, sound is generated around the safety valve 44 when the safety valve 44 is actuated and elastically deformed when an exhaust flow is generated and air passes between the lower edge and the inner lid 47 to generate wind noise. A body 46 is disposed.

  As shown in FIGS. 3 and 4, the inner lid 47 includes a metal inner lid main body 48 and a lid packing 49 which are section screens facing the inside of the inner pot 10. The lid packing 49 is tightly sealed to the inner peripheral wall of the upper end opening of the inner pot 10, and is disposed on the inner lid body 48 so as not to be detached by disposing a resin frame 50 on the outer peripheral portion. Yes. The inner lid body 48 is provided with a communication hole 51 at a position corresponding to the safety valve 44, and the upper surface of the outer peripheral portion of the communication hole 51 is sealed by the safety valve 44. Further, the inner lid 47 is provided with a first pressure regulating valve 53 and a second pressure regulating valve 61 on the upper surface side, thereby enabling the pressure inside the inner pot 10 to be increased to a set pressure higher than the atmospheric pressure. Further, a filter set 68 for preventing clogging of the vent holes 56 and 64 of the pressure regulating valves 53 and 61 that are the inlets of the exhaust passages is disposed on the lower surface side facing the inner pot 10. Further, in the lid body 21 to which the inner lid 47 is attached, the space between the heat radiating plate 40 and the inner lid 47 is an exhaust space 52 that constitutes a part of the exhaust passage.

  The first pressure regulating valve 53 is a first valve mechanism provided in the exhaust passage. The first pressure regulating valve 53 is provided with a first insertion hole 54 so as to be positioned at the center of the first pressure regulating valve accommodating portion 31 of the inner lid main body 48, and is disposed at an upper portion thereof. The first pressure regulating valve 53 includes a first valve seat 55 disposed in the first insertion hole 54 from the inner pot 10 side. The first valve seat 55 is provided with a first vent hole 56 serving as a first inlet of the exhaust passage. The first valve seat 55 is provided with a first flange portion 57 projecting radially outward so as to form an annular shape at the lower end of the first valve seat 55.

  A cylindrical first cover 58 having upper and lower ends opened to the first valve seat 55 is fixed from the upper surface side of the inner lid main body 48. The first cover 58 includes a hole 58 a communicating with the first pressure regulating valve housing 31 at the lower part. Inside the first cover 58, a valve body 59 that closes the first vent hole 56 so as to be openable, an operation receiving member 60 that moves the valve body 59 to a closed position (downward), and a position between them. And a spring (not shown). The first pressure regulating valve 53 closes the first vent hole 56 with the valve body 59 via a spring when the operation receiving member 60 is moved downward via the pressing member 35 by driving the stepping motor 34. . Moreover, the inside of the inner pot 10 can be boosted in the range of 1.00 to 1.30 atm by adjusting the movement amount (biasing force) of the operation receiving member 60. Further, when the movement of the operation receiving member 63 is released by driving the stepping motor 34, the operation receiving member 63 is moved to the open position, and the first vent hole 56 is opened to open the inside of the inner pot 10 to the atmosphere.

  The second pressure regulating valve 61 is a second valve mechanism provided in the exhaust passage. The second pressure regulating valve 61 is provided with a second insertion hole 62 so as to be positioned at the center of the second pressure regulating valve accommodating portion 36 of the inner lid main body 48, and is disposed on the upper portion thereof. The second pressure regulating valve 61 includes a second valve seat 63 disposed in the second insertion hole 62 from the inner pot 10 side. The second valve seat 63 is provided with a second vent hole 64 serving as a second inlet of the exhaust passage. The second vent hole 64 is formed with an open area that can be exhausted so that the inner pressure of the inner pot 10 is equal to the atmospheric pressure in a state where the inner pot 10 is boiled. A second flange portion 65 is provided at the lower end of the second valve seat 63 so as to project radially outward so as to form an annular shape.

  A second cover 66 having a dome shape with an open lower end is fixed to the second valve seat 63 from the upper surface side of the inner lid body 48. The second cover 66 is provided with a hole 66 a communicating with the second pressure regulating valve accommodating portion 36, while allowing the pressing member 39 of the solenoid 38 to be inserted into and retracted from the packing 37 side of the second pressure regulating valve accommodating portion 36. Yes. A spherical member 67 that closes the second vent hole 64 so as to be openable is disposed inside the second cover 66. The spherical member 67 rolls when the rod is retracted by driving the solenoid 38 to close the second vent hole 64, and is separated from the second vent hole 64 when the rod is advanced by shutting off the energization to the solenoid 38. The When the pressure in the inner pot 10 is increased to 1.30 atm with the second vent hole 64 closed, the spherical member 67 of the present embodiment rolls from the second vent hole 64 with the pressure of the steam. The thing of the weight which separates is used.

  The filter set 68 is disposed so as to cover the first and second vent holes 56 and 64 that are the inlets of the exhaust passage. The filter set 68 of this embodiment is detachably attached to the filter base member 69 disposed so as to be sandwiched between the inner lid body 48 by attaching the first and second valve seats 55 and 63. And a filter member 77 to be mounted on.

  As shown in FIGS. 4 and 5, the filter base member 69 is attached to the lower surface of the inner lid main body 48 that is a section screen of the lid body 21, and covers the first and second insertion holes 54 and 62. It consists of a rectangular resin plate. The filter base member 69 is inserted through a first valve seat insertion portion 70 through which the first valve seat 55 of the first pressure regulating valve 53 is inserted, and a second valve seat insertion through which the second valve seat 63 of the second pressure regulating valve 61 is inserted. A portion 71 is formed. In these insertion portions 70 and 71, fitting concave portions 70 a and 71 a for fitting the flange portions 57 and 65 of the valve seats 55 and 63 are formed on the lower surface side. Further, the filter base member 69 is provided with a through-groove 72 having both end openings that extend downward across the first and second insertion portions 70 and 71 on the upper surface in contact with the inner lid body 48 and are recessed downward. It has been. The openings at both ends of the through groove 72 are widened so as to increase the opening area. Further, on both side portions of the filter base member 69, engagement grooves 73 for mounting the filter member 77 by sliding are provided. Further, a chamfered portion 74 for improving the mounting workability is provided at the corner of the left end in FIG. The filter base member 69 is provided with a recess 75 that is recessed in the removal operation direction at the right end located on the front side in the removal operation direction. Further, on the lower surface side of the filter base member 69, a pressure contact portion 76 that maintains the mounted state of the filter member 77 by pressure contact is projected downward.

  The filter member 77 has a substantially rectangular shape having a bottom surface portion 78 positioned in parallel with the filter base member 69 and a side surface portion 79 erected on the outer peripheral edge of the bottom surface portion 78. On both sides of the filter member 77, there are provided substantially inverted L-shaped engaging portions 80 that fit into the engaging grooves 73. By engaging the engagement portion 80 with the engagement groove 73 and attaching it to the filter base member 69, the engagement portion 80 can be moved to the filtration position covering the vent holes 56 and 64. Moreover, by removing, it can be made to move to the non-filtration position which opened the vent holes 56 and 64. FIG. In addition, the bottom surface portion 78 is provided with a raised portion 81 that protrudes upward so as to be separated from the bottom of the inner pot 10. The raised portion 81 has an oval shape covering the first and second valve seat insertion portions 70 and 71, and the upper end thereof is a flat surface extending in parallel to the filter base member 69. In the raised portion 81, a plurality of filter holes 82 are provided in a region located between the stepped portion 81 a rising from the bottom surface portion 78 and the insertion portions 70 and 71. That is, the filter member 77 of this embodiment is not provided with the filter hole 82 at a position that coincides with the vent holes 56 and 64 in the axial direction. Further, the side surface 79 is further provided with a side surface filter hole 83 having a diameter larger than that of the filter hole 82. The bottom surface portion 78 is further provided with a protruding portion 84 that protrudes outward so as to cover the side filter hole 83.

  If the diameter D1 of the filter hole 82 is, for example, a small-diameter hole through which minor grains cannot pass, in addition to clogging of the minor grains and the like into the filter hole 82, it is difficult to clean the inner periphery of the filter hole 82. Become. For this reason, the diameter D1 of the filter hole 82 is set to a size (for example, 3 mm) in which a small grain (for example, beans) having a size that easily blocks the exhaust path cannot pass. Further, the diameter D2 of the side filter hole 83 is formed larger than the diameter D1 of the filter hole 82. On the other hand, in the filter member 77 in which such filter holes 82 and 83 are formed, a small miscellaneous grain can pass through, and therefore the vent hole may be clogged. Therefore, the clearance S between the upper end of the raised portion 81 of the filter member 77 and the filter base member 69 that is the opposite surface is smaller than the diameter D1 of the filter hole 82 and is set to a small size (for example, 2 mm) through which minor grains cannot pass. Thus, filtering can be performed in two stages by the diameter D1 of the filter hole 82 and the gap S between the raised portion 81 of the filter member 77 and the filter base member 69. Therefore, the efficient separation of the cereals and steam and the risk of clogging the exhaust path and the filter hole 82 can be largely avoided. Further, if the overall height of the raised portion 81 is too high, the thickness of the filter member 77 becomes thick, and if it is too low, a high strength cannot be obtained and the pack cooking bag is easily adhered. Therefore, the total height of the raised portion 81 is set higher than 2 mm and lower than 10 mm.

  In this rice cooker, an operation panel 85 having a switch for a user to input rice cooking conditions and a liquid crystal display panel for displaying a selection state and an operation state is disposed on the front upper portion of the shoulder body 14. . A control board on which a microcomputer is mounted is disposed between the body 12 and the protective frame 17. And if a microcomputer detects execution of the rice cooking control by a user operating the operation panel 85, according to the rice cooking program memorize | stored previously, the rice cooking process which consists of each process of preheating, temperature rising, boiling maintenance, and unevenness Then, a heat retaining process is performed to keep the cooked cooked rice at a predetermined temperature.

  During the rice cooking process, steam generated by heating the inner pot 10 flows into the filter set 68 from the filter holes 82 and 83. Here, in the case where the filter hole 82 is provided at a position that coincides with the vent holes 56 and 64 in the axial direction, the exhaust amount at that portion becomes the largest. In this case, when the cooked rice is the cereal rice, the cereals in the cereal rice concentrate and pass through, so that the air holes 56 and 64 are easily clogged. However, the filter member 77 of the present embodiment does not have the filter hole 82 at a position that coincides with the vent holes 56 and 64 in the axial direction, and the exhaust path is complicated. Therefore, it is possible to prevent concentrated cereals from being discharged and to prevent clogging. In addition, since the distance from the filter hole 82 to the vent hole can be increased, the occurrence of spillage through the exhaust passage can be suppressed.

  On the other hand, since the filter holes 82 and 83 of the present embodiment have a diameter through which the minor grains can pass, the minor grains also flow into the filter set 68 together with the steam. However, the cereals that have flowed into the filter set 68 cannot pass through the gap between the filter base member 69 and the raised portion 81 of the filter member 77, and therefore adhere to the filter base member 69 or the filter member 77. As a result, it is possible to flow only the steam excluding the minor cereals to the vent holes 56 and 64 on the downstream side. Therefore, clogging of the air holes 56 and 64 due to minor grains can be reduced.

  The steam passing through the vent holes 56 and 64 through the filter set 68 in this way passes through the covers 58 and 66 of the first and second pressure regulating valves 53 and 61, and then the covers 58 and 66 and the housing portion. The exhaust space 52 between the heat radiating plate 40 and the inner lid 47 passes through between 31 and 36. The air flowing into the exhaust space 52 is exhausted from the connected portion 28 through the steam port unit 24 to the outside.

  At this time, when the user has set the bag containing the cooked food in the inner pot 10, the bag acts in close contact with the filter member 77 as in the conventional case. However, in this embodiment, since the raised part 81 which protrudes away from the bottom of the inner pot 10 is provided, the filter hole 82 can be separated from the rice. Moreover, since the filter hole 82 is provided in the step part 81a formed by the raised part 81, the bag does not block all the filter holes 82. In addition, since the side surface filter hole 83 is also provided in the side surface portion 79 of the filter member 77 and this side surface filter hole 83 is covered with the protrusion 84, the bag goes around the side surface portion 79 and the side surface filter hole 83 is blocked. It will never be. Therefore, even if a user performs pack cooking by misuse, the exhaust route of the steam in the inner pot 10 can be secured.

  In addition, if it transfers to a temperature rising process by rice cooking process, the 2nd vent hole 64 will be obstruct | occluded by turning on the solenoid 38, the stepping motor 34 will be driven based on the detected value of the pressure sensor 45, Adjust pressure in multiple stages. When the pressure in the inner pot 10 exceeds the set pressure during the pressure adjustment, the valve body 59 of the first pressure regulating valve 53 moves upward against the urging force of the spring to reduce the pressure in the inner pot 10. To do. When the inner pressure of the inner pot 10 exceeds the set maximum pressure, the spherical member 67 of the second pressure regulating valve 61 rolls away from the second vent hole 64 with the exhaust pressure, and the pressure in the inner pot 10 is reduced. Step down. Furthermore, if the steam cannot be exhausted from the first and second vent holes 56 and 64 due to the malfunction of the pressure regulating valves 53 and 61 and the pressure in the inner pot 10 is increased to an abnormal pressure, the safety valve 44 is activated to communicate. The steam is exhausted through the hole 51 and the exhaust space 52, and the pressure in the inner pot 10 is reduced.

  On the other hand, in the filter set 68 after cooking rice, cereals and dried rice balls are attached. Therefore, the user removes the inner lid 47 from the lid body 21 and removes the filter member 77 from the inner lid 47 for cleaning. When removing the filter member 77 from the inner lid 47, the user puts his / her finger on the edge of the filter member 77 on the front side in the removal operation direction, and slides the filter member 77 in the removal operation direction. At this time, since the filter base member 69 is provided with a recess 75 that is recessed in the removal operation direction, even if the user's finger collides with the filter base member 69, no pain is felt.

  Since the filter member 77 has a high strength due to the shape provided with the raised portions 81, the filter member 77 can be prevented from being damaged during cleaning or when the filter member is attached or removed. Further, since the filter base member 69 is provided with a through groove 72 having both end openings that are recessed downward on the upper surface in contact with the inner lid main body 48, the through groove 72 can be washed with water. Therefore, the convenience in use can be improved.

  In addition, the cooking-by-heating machine of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, in the embodiment, the inner lid 47 is configured to be detachable from the lid body 21, but the inner lid 47 may be configured to be non-separable. Moreover, in the said embodiment, although a pair of pressure regulation valves 53 and 61 were mounted, it is good also as a structure which provided only one pressure regulation valve. Of course, the structure which provides the filter member 77 of this invention is effective also as a non-pressure type rice cooker which does not mount a pressure regulation valve.

  In the above embodiment, the filter member 77 is configured to be detachable from the filter base member 69, so that the filter member 77 moves to the filtration position covering the vent holes 56 and 64 and the non-filtration position opening the vent holes 56 and 64. The filter member 77 and the filter base member 69 are provided with a well-known hinge connection structure so that the filter member 77 can be opened and closed with respect to the filter base member 69, thereby moving from the filtration position to the non-filtration position. It may be possible.

  Furthermore, in the said embodiment, although the rice cooker was mentioned as an example and demonstrated, if it is a heating cooker which heats and cooks a predetermined cooking thing, it can apply similarly and can acquire the same effect | action and effect. it can.

10 ... inner pot 11 ... rice cooker body 18 ... induction heating coil (heating means)
21 ... Lid 24 ... Steam port unit (exhaust passage)
31 ... 1st pressure regulation valve accommodating part (exhaust passage)
36 ... Second pressure regulating valve housing (exhaust passage)
47 ... Inner lid (ward screen)
52. Exhaust space (exhaust passage)
56 ... first vent 58 ... first cover (exhaust passage)
64 ... second vent 66 ... second cover (exhaust passage)
68 ... Filter set 69 ... Filter base member 72 ... Through groove 75 ... Recessed portion 77 ... Filter member 78 ... Bottom surface portion 79 ... Side surface portion 81 ... Raised portion 81a ... Step portion 82 ... Filter hole 83 ... Side filter hole 84 ... Projection

Claims (4)

A bottomed cylindrical pan having an open upper end, a main body that detachably accommodates the pan, heating means that is disposed in the main body and heats the pan, and an upper end opening of the pan that is disposed in the main body In a cooking device provided with a lid body that can be opened in a releasable manner, and an exhaust passage that is provided in the lid body and that communicates with the outside through a vent hole facing the inside of the pan,
On the section screen facing the inside of the pan of the lid, a filter member that covers the vent hole and has a plurality of filter holes is disposed,
The filter member is provided with a raised portion that rises upward to leave the bottom of the pan ,
The raised portion is not provided with the filter hole at a position that coincides with the vent hole of the lid in the axial direction,
The cooking device according to claim 1, wherein a gap between the upper end of the raised portion of the filter member and the opposing surface is smaller than a diameter of the filter hole . A bottomed cylindrical pan having an open upper end, a main body that detachably accommodates the pan, heating means that is disposed in the main body and heats the pan, and an upper end opening of the pan that is disposed in the main body In a cooking device provided with a lid body that can be opened in a releasable manner, and an exhaust passage that is provided in the lid body and that communicates with the outside through a vent hole facing the inside of the pan,
On the section screen facing the inside of the pan of the lid, a filter member that covers the vent hole and has a plurality of filter holes is disposed,
The filter member is provided with a raised portion that rises upward to leave the bottom of the pan,
The filter member has a bottom surface portion having the raised portion and a side surface portion erected on an outer peripheral edge of the bottom surface portion, and further provided with a plurality of side surface filter holes in the side surface portion,
A heating cooker characterized in that a protruding portion that covers the side filter hole is provided outwardly on the bottom surface portion. A bottomed cylindrical pan having an open upper end, a main body that detachably accommodates the pan, heating means that is disposed in the main body and heats the pan, and an upper end opening of the pan that is disposed in the main body In a cooking device provided with a lid body that can be opened in a releasable manner, and an exhaust passage that is provided in the lid body and that communicates with the outside through a vent hole facing the inside of the pan,
On the section screen facing the inside of the pan of the lid, a filter member that covers the vent hole and has a plurality of filter holes is disposed,
The filter member is provided with a raised portion that rises upward to leave the bottom of the pan,
The filter member is arranged to be movable between a filtering position covering the vent hole and a non-filtering position opening the vent hole with respect to the filter base member mounted on the section screen of the lid,
A cooking device according to claim 1, wherein a through groove having both end openings recessed downward is provided on an upper surface of the filter base member that contacts the lid. A bottomed cylindrical pan having an open upper end, a main body that detachably accommodates the pan, heating means that is disposed in the main body and heats the pan, and an upper end opening of the pan that is disposed in the main body In a cooking device provided with a lid body that can be opened in a releasable manner, and an exhaust passage that is provided in the lid body and that communicates with the outside through a vent hole facing the inside of the pan,
On the section screen facing the inside of the pan of the lid, a filter member that covers the vent hole and has a plurality of filter holes is disposed,
The filter member is provided with a raised portion that rises upward to leave the bottom of the pan,
The filter member is arranged to be movable between a filtering position covering the vent hole and a non-filtering position opening the vent hole with respect to the filter base member mounted on the section screen of the lid,
The filter member is slidably attached to the plate-like filter base member by sliding, and the filter member has an edge positioned on the front side of the filter member in the removing operation direction of the filter member. A heating cooker characterized in that a recess recessed in the removal operation direction is provided.

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