JP2019042429A - Pressure type rice cooker - Google Patents

Abstract

To provide a pressure type rice cooker whose steam cap, inner lid, and the like are easy to wash.SOLUTION: A pressure type rice cooker 20 has: a valve unit 92 having a vent hole 97 and a spherical valve body 99 fitted to the inner lid 91; and valve body driving means opening/closing the vent hole 97 pressurizing the spherical valve body 99 in a horizontal direction. The steam cap 93 has a steam outlet 93g that covers the valve unit 92 and discharges steam leaked through the vent hole 97 outside a lid body 40. The steam cap 93 is arranged in the way that it can be fitted to and removed from the inner lid 91. The valve body driving means has a valve operation projection 73c extending to a side surface of the spherical valve body 99 through an opening for valve drive of the steam cap 93 from above the steam cap 93 and pressurizes the spherical valve body 99 by rotary motion of the valve operation projection 73c in a horizontal direction.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a pressure rice cooker in which a steam cap, an inner lid and the like are easy to clean.

  Generally, a rice cooker has a plurality of heating means such as a work coil, a heat retaining heater, and a lid heater, and automatically cooks and heats using these heating means to provide the user with optimal rice and the like. Widely known. By the way, if you cook rice with the inner pot in a pressurized state during each rice cooking process, heat conduction and water absorption speed into the rice will be accelerated, resulting in sufficient water absorption and shortening more delicious rice without uneven cooking. You can cook it in time. Such rice cookers are already known as pressure rice cookers.

  In a pressure rice cooker, a steam cap is usually provided, and this steam cap collects steam that is generated in the inner pot and discharged from the valve body to the outside through a steam passage, and is generated during rice cooking. The steam is prevented from being discharged to the outside. However, in a conventional pressure rice cooker, when cleaning a member that comes into contact with steam or condensation, a steam recovery unit including a steam cap provided outside the outer lid, and an inner lid provided inside the outer lid, It is necessary to remove the dew receiving tray provided on the lower side of the inner lid from the outer lid for cleaning. Therefore, when washing the pressure rice cooker after cooking rice, remove the inner lid attached to the inner side of the outer lid, the dew receiving tray, and the steam recovery unit attached to the outer side of the outer lid separately, Had to carry and wash to.

  The pressure type rice cooker which solved the subject at the time of such washing | cleaning is disclosed by the following patent document 1. FIG. As shown in FIGS. 16 and 17, this pressure rice cooker has an outer lid 201 and an inner lid 202 as a lid body 200, and is provided in the inner lid 202 and steam in an inner pot (not shown). A steam cap 207 is formed by a lower case 204 having a valve body 203 into which water enters and an upper case 206 detachably connected to the lower case 204 and having a discharge port 205 for discharging steam to the outside. A partition 208 that restricts the flow of steam that flows from the valve body 203 toward the discharge port 205 is formed on the ceiling surface. In this pressure-type rice cooker, the valve body 203 is operated through the opening 206a of the upper case 206 by a reciprocating pressure adjusting unit 209, and the inside of the inner pot is controlled to a predetermined pressure.

  According to the pressure-type rice cooker having such a configuration, steam can be temporarily stored in the steam cap 207, so that the steam in the pressure-type rice cooker can be prevented from being discharged to the outside. In addition, since the lower case 204 including the valve body 203 is provided on the inner lid 202, when the inner lid 202 is removed from the outer lid 201, the inner lid 202, the steam cap 207, and the like are integrated from the outer lid 201 at a time. Therefore, it is easy to remove each member to be removed at the time of cleaning, and it takes less time to remove each member to be cleaned, so that the cleaning efficiency can be improved.

Japanese Patent No. 5401173 Japanese Patent No. 5752491

However, in the pressure rice cooker disclosed in Patent Document 1, since the pressure adjustment unit 209 is driven back and forth, in order to allow the steam cap 207 to be removed downward, the inner surface member 210 of the outer lid and the upper case 206 are provided. Must be combined at a predetermined angle (about 45 °). Therefore, the compression allowance of the sealing material 211 for sealing between the pressure adjusting unit 209 and the outer lid inner surface member 210 is ½ ^½ compared to the case where the outer lid inner surface member 210 and the upper case 206 face each other. Since it becomes small and it becomes inferior to sealing performance, there exists a possibility that the malfunction which vapor | steam leaks may generate | occur | produce.

In addition, a lid heater 212 is disposed in the lid body 200. The front and rear dimensions of the lid heater 212 are the same as above (height dimension for housing the upper case 206) × 2 ^1/2. Since the length is reduced by that amount, many portions of the condensate pan 213 cannot be heated sufficiently, and during the cooking and heat retention, condensation occurs in the unheated portion of the condensate pan 213, which is If you drop it on top of the rice, it may cause the rice to swell and spoil the taste of the rice.

  Moreover, in the pressure rice cooker disclosed in Patent Document 1, when the inner lid 202 is removed from the outer lid 201, the inner lid 202 and the steam cap 207 are removed at the same time, so that only the inner lid 202 is to be cleaned. In addition, the steam cap 207 is also removed, and there is a problem that it takes time to clean.

  In addition, in order to make it the structure which can remove the steam cap 207 below, making the outer cover inner surface member 210 and the upper case 206 face each other, a magnet is used for the pressure adjustment unit 209 and the magnet is reciprocated. Thus, a method of operating the valve body 203 is also conceivable. However, although water vapor is originally a corrosive gas, the water vapor coming out of the valve body of the pressure rice cooker is at a high temperature exceeding 100 ° C. and is more corrosive than normal water vapor. Therefore, the ball used as the valve body 203 is required to have strong corrosion resistance. However, rust is generated in the ferritic stainless steel attracted by the magnet, and the austenitic stainless steel has good corrosion resistance. Although it is not attracted to the magnet, it cannot be adopted immediately.

  The present invention has been made to solve the above-described problems of the prior art. That is, an object of the present invention is to configure a part of the pressure regulating device that drives the valve body of the pressure adjusting unit by a rotating member, and to be able to individually remove the inner lid and the steam cap downward, An object of the present invention is to provide a pressure rice cooker in which a steam cap, an inner lid, etc. are easy to clean.

The pressure rice cooker of the first aspect of the present invention is
A pressure rice cooker having a rice cooker body and a lid located above the rice cooker body,
The rice cooker body has an inner pot and heating means for heating the inner pot,
The lid has an inner lid that covers the opening of the inner pot and covers the opening of the lid, a pressure adjusting device, and a steam cap.
The pressure adjusting device includes a vent unit attached to the inner lid and a valve unit having a spherical valve body for opening and closing the vent hole, and opening and closing the vent hole by pressing the spherical valve body in a horizontal direction. Valve body driving means for
The steam cap covers the valve unit and discharges steam leaked from the vent hole to the outside of the lid, and a valve driving opening formed at a position facing the spherical valve body Have
The inner lid is provided so as to be attachable to and detachable from the lid body,
The steam cap is arranged to be attachable to and detachable from the lid,
The valve body drive means has a valve operation protrusion that extends from above the steam cap to the side surface of the spherical valve body through the valve drive opening,
The spherical valve element is pressed in the horizontal direction by the rotation of the valve operating projection.

  According to the pressure type rice cooker of the 1st mode, since steam can be temporarily stored in a steam cap, it can control that steam in a pressure type rice cooker is discharged outside. Become. Further, the valve operating projection extends from the upper side of the steam cap to the side surface of the spherical valve body located inside the steam cap through the valve driving opening, but also from the inner side of the lid body to the inner lid. Since the steam cap can also be removed downward, the cleaning efficiency can be improved.

  Moreover, the pressure type rice cooker of the 2nd aspect of this invention is a pressure type rice cooker of a 1st aspect, The magnet is provided in the inner surface side of the said cover body, and the outer surface side of the said steam cap is provided. A steel plate is provided.

  According to the pressure rice cooker of the second aspect, the inner surface side of the lid and the steam cap are not directly fixed, but are provided on the outer surface side of the magnet and the steam cap provided on the inner surface side of the lid. Since the inner surface side of the lid and the outer surface side of the steam cap are attracted to each other by the steel plate, the steam cap is substantially fixed to the inner surface side of the lid so that it can be attached and removed. Arrangement is stabilized.

Moreover, the pressure type rice cooker of the 3rd aspect of this invention is a pressure type rice cooker of the 1st or 2nd aspect, The said pressure regulation apparatus is further equipped with the 2nd ventilation hole attached to the said inner lid, A second valve unit having a second spherical valve body for opening and closing the second vent hole, and the second spherical valve body by pressing the second spherical valve body in a vertical direction. A second valve driving means for closing the second vent hole;
The second valve driving means has a pressing member extending from above the steam cap into the steam cap through the second valve driving opening,
The pressing member presses the second spherical valve body in the vertical direction.

  According to the pressure type rice cooker of the 3rd mode, since movement of two spherical valve bodies can be controlled independently, respectively, non-pressure rice cooking, low pressure rice cooking, and high pressure rice cooking multi-stage pressure rice cooking And the second spherical valve element can be made to function as a safety valve.

  As described above, according to the pressure rice cooker of the present invention, since the inner lid and the steam cap can be individually removed from the inside of the lid body, the cleaning efficiency can be improved. become.

It is an external appearance perspective view of the pressure type rice cooker of embodiment. It is a longitudinal cross-sectional view along the II-II line of FIG. It is the perspective view which looked at the cover body of the state which removed the cover upper member from diagonally upward. It is a longitudinal cross-sectional view of the inner lid and the steam cap part along the IV-IV line of FIG. It is a disassembled perspective view of each components, such as a 1st pressure regulator. It is a disassembled perspective view of each components, such as a 2nd pressure regulator. It is an assembly perspective view of each component, such as the 1st and 2nd pressure regulation device of the state where the valve cover was removed. 8A is a perspective view showing a state in which the first pressure adjusting device is not operating (when the solenoid is off), FIG. 8B is a longitudinal sectional view taken along line VIIIB-VIIIB in FIG. 8A, and FIG. 8C is FIG. It is a longitudinal cross-sectional view along line VIIIC-VIIIC. 9A is a perspective view showing a state when the first pressure adjusting device is in operation (when the solenoid is on), FIG. 9B is a longitudinal sectional view taken along line IXB-IXB in FIG. 9A, and FIG. 9C is a view in FIG. It is a longitudinal cross-sectional view along the IXC-IXC line. It is a longitudinal cross-sectional view which shows the state at the time of the non-operation (at the time of solenoid OFF) of a 2nd pressure regulator. It is a longitudinal cross-sectional view which shows the state at the time of operation | movement (at the time of solenoid ON) of a 2nd pressure regulator. It is an assembly perspective view of components, such as a steam cap on the inner lid in the state where the lower lid member is removed. FIG. 13 is an assembled perspective view with the upper case removed from FIG. 12. FIG. 14 is an assembled perspective view with the lower case removed from FIG. 13. 15A is a perspective view of the steam cap viewed from above, FIG. 15B is a perspective view of the steam cap viewed from below, and FIG. 15 is a longitudinal sectional view taken along the line XVC-XVC in FIG. 15A. It is a longitudinal cross-sectional view of the cover member of a prior art example. It is an assembly perspective view of each component on the inner lid in a state where the lid lower member of the conventional example is removed.

  Hereinafter, a pressure rice cooker according to an embodiment of the present invention will be described with reference to the drawings. However, the embodiment shown below exemplifies a pressure-type rice cooker that can be adjusted in multiple stages, which includes a first spherical valve and a second spherical valve, as an example for embodying the technical idea of the present invention. Therefore, it is not intended to specify the present invention. The present invention can be equally applied to other embodiments included in the scope of claims, such as a pressure rice cooker including only the first spherical valve. As for the direction in each drawing, the left direction in FIG. 2 is “front”, the right direction is “rear”, the upper direction is “up”, the lower direction is “lower”, the front direction is “right”, and the rear direction is It will be described as “left”.

  Initially, the substantially whole structure of the pressure type rice cooker 20 is demonstrated using FIGS. 1 is an external perspective view of the pressure rice cooker of the embodiment, FIG. 2 is a longitudinal sectional view taken along line II-II in FIG. 1, and FIG. 3 is a lid with the lid upper member removed. FIG. 4 is a perspective view of the body as viewed obliquely from above, FIG. 4 is a longitudinal sectional view of an inner lid and a steam cap portion taken along line IV-IV in FIG. 3, and FIG. 5 is each component such as a first pressure adjusting device. FIG. 6 is an exploded perspective view of components such as a second pressure regulator, and FIG. 7 is an assembly of components such as the first and second pressure regulators with the valve cover removed. It is a perspective view.

  The pressure rice cooker 20 includes a rice cooker body 21 and a lid 40. The rice cooker main body 21 has an outer case 22 made of a steel plate case or a synthetic resin, and an inner pan 23 such as a metal pan or an earthen pan is detachably set in the outer case 22. On the outside, an inner case 24 that is a protective frame along the shape of the inner pot 23 is provided. The inner case 24 is made of a heat-resistant synthetic resin such as polyethylene terephthalate, and a temperature sensor 25 made of a thermistor is provided at the center of the bottom.

  The upper end of the inner case 24 is integrally coupled to the upper end of the outer case 22 via a shoulder member 26. A bottom work coil 27 and a side work coil 28, which are heating means for induction heating the inner pot 23, are provided on the bottom outer surface of the inner case 24 and the curved outer surface from the bottom to the side. The bottom work coil 27 and the side work coil 28 are provided concentrically around the center of the bottom portion of the inner case 24 at each position of the bottom portion and the curved portion of the inner case 24.

  A coil support base 29 made of synthetic resin is provided outside the bottom work coil 27 and the side work coil 28. By attaching the coil support base 29 to the inner case 24 with screws or the like, the bottom work coil 27 is provided. The side work coil 28 is positioned and fixed at a predetermined position shown in the figure.

  A bottom member 31 is attached to the lower end portion of the outer case 22 with a screw or the like, and the outer case 22 and the bottom member 31 form a container having an opening upward. A control board 32 is provided inside the rear of the outer case 22 so as to hang from the shoulder member 26.

  On the control board 32, electric parts such as a microcomputer and a power supply circuit for controlling heating means such as the bottom work coil 27 and the side work coil 28 are mounted. Since some of these electrical components generate heat, a cooling fin 33 for cooling the heating elements and the like and a cooling fan 34 for radiating the heat of the cooling fin 33 are provided in the vicinity of the control board 32. . A cord winder 35 is provided on the rear side of the control board 32.

  The lid body 40 includes a resin surface cover 40a, a lid top member 41, and a lid bottom member 42 that also serves as a valve cover. The lid lower member 42 is a resin member similar to the lid upper member 41, and a U-shaped notch 43 in plan view in which the hinge shaft 58 and the hinge spring 59 are disposed is provided in the rear part thereof. . Further, a steam discharge port 44 is provided at the center and rear of the front cover 40a and the lid upper member 41, and the steam in the inner pot 23 is discharged to the outside through the steam cap 93. It has become so. A magnet 41a is provided on the lower surface of the lid upper member 41 so as to attract each other with a steel plate 93a provided on the surface of the steam cap 93, and the lid upper member 41 and the steam cap 93 are stably fixed. It is like that.

  On the lower lid member 42, a metal reinforcing member 46 for increasing the strength of the lid body 40 is provided as shown in FIG. A bearing hole 47 for supporting the lever shaft 57 of the lock lever 50a is provided at the front end of the reinforcing member 46, and a screw hole for fixing the hinge unit is provided at the rear end of the reinforcing member 46. In addition, a metal lock lever 50a, which is a lid opening / closing member, is provided on the front side of the lid lower member 42. As shown in FIG. 3, the lock lever 50 a is a metal member having an L-shaped cross section including a horizontal portion 51 and a vertical portion 52.

  The horizontal part 51 includes a first horizontal part 51a, a second horizontal part 51b, and a third horizontal part 51c. The first horizontal part 51a extends from the horizontal part 51 via a bent part 51a1, and behind it cooperates with a semicircular arc-shaped recess 71c (see FIG. 5) of the first sliding member 70 described later. A hanging portion (not shown) is formed. A pressing button 50 (see FIGS. 1 and 2) is brought into contact with the second horizontal portion 51b. The third horizontal portion 51c is formed with a locking port 56 that locks one end of a lever spring (not shown) for rotating the lock lever 50a.

  The center of the vertical portion 52 is cut out in a substantially tunnel shape from below, and the remaining left and right vertical portions respectively form a pair of lock portions 52a. The pair of lock portions 52a are inserted through a pair of openings 42a formed in the lid lower member 42, respectively, and the lower end thereof has a substantially rectangular locking portion (not shown) that is bent at a right angle to the rear side. Is formed. The locking portion is locked by a locking piece (not shown) formed on the shoulder member 26, so that the lid 40 is closed.

  A rod-shaped lever shaft 57 into which a coiled lever spring (not shown) is inserted is fitted to the lock lever 50 a, and both ends of the lever shaft 57 are in the left and right bearing holes 47 of the reinforcing member 46. Inserted and pivotally supported. After the lever shaft 57 is inserted into the left and right bearing holes 47, one end of the lever spring is locked to the locking port 56 of the third horizontal portion 51c, and the other end is locked to the lid lower member 42 side, the lock lever 50a is It is attached in the state of FIG. 3 with a counterclockwise spring force applied. When the pressing button 50 provided on the upper surface of the lid upper member 41 is pushed from above or is pushed by a slide lever or the like, the lock lever 50a is rotated clockwise, and as a result, the lid 40 is hinged spring 59. The lid is opened by the spring force.

  A hinge unit is provided in a notch 43 on the rear side of the lid lower member 42. Female screws are provided at both ends of the hinge unit, and are fixed to the screw holes provided behind the reinforcing member by screws. The other end of the hinge unit is locked to the shoulder member, and a spring force is always applied to the lid 40 in the opening direction.

  A first valve storage chamber 94 and a second valve storage chamber 95 are provided at the center of the lid lower member 42. A first solenoid 68, which is a component of the first pressure adjustment device, is disposed horizontally and in the front-rear direction on the front side of the first valve storage chamber 94, and the second pressure adjustment device is provided on the front side of the second valve storage chamber 95. The second solenoid 75, which is a single component, is disposed horizontally and in the front-rear direction. As a result, the first solenoid 68 and the second solenoid 75 are in close proximity and in parallel. The first solenoid 68 and the second solenoid 75 are two-position ones, but other ones may be used.

  As shown in FIGS. 3 and 5, a resin-made support member 63 having a substantially rectangular shape in plan view is disposed on the upper surface of the lid lower member 42 in front of the steam cap 93. The support member 63 is a shallow dish-shaped member on which the pressure adjusting device or the like is placed, and a flange 63a that protrudes in the left-right direction and has one screw hole 63a1 is provided on the upper end of the side wall. At the front end thereof, a shaft through-hole 63b (see FIG. 5) through which the lever shaft 57 of the lock lever 50a is inserted is provided. The support member 63 is attached to the upper surface of the reinforcing member 46 by inserting the lever shaft 57 into the shaft through-hole 63b and screwing the screw into the lower lid member 42 from the screw hole 63a1.

  A first solenoid housing chamber 64 having a rectangular shape in plan view for housing the first solenoid 68 and a first sliding member housing portion for housing a part of the first sliding member 70 are disposed on the upper surface of the support member 63. 65, a second solenoid housing chamber 66 having a rectangular shape in plan view for housing the second solenoid 75, and a second sliding member housing portion 67 for housing the second sliding member 77 are provided. A first solenoid 68 is housed horizontally and in the front-rear direction in the first solenoid housing chamber 64 on the support member 63.

  At the upper end and the lower end of the side wall surface of the first solenoid 68, there is provided a mounting flange 68a having a rectangular shape in plan view extending in the left-right direction and having a screw hole 68b at the center thereof. The first solenoid 68 is fixed to the lid lower member 42 by screwing together. The first solenoid 68 is provided with a first plunger 69 that advances and retreats when the first solenoid 68 is turned on and off. A spring support 69a having a C-shape in front view is attached to the distal end side of the first plunger 69, and is inserted between the first plunger 69 and the outer periphery of the first plunger 69 between the first solenoid 68 and the spring support 69a. A coil spring 69b is inserted. The first plunger 69 is drawn backward from the first solenoid 68 when the first solenoid 68 is off, and is drawn into the first solenoid 68 when the first solenoid 68 is on.

  As shown in FIG. 5, the first sliding member 70, which is a sliding portion, includes a front / rear direction elongated portion 71, a front / rear direction elongated portion 71 a and a left / right direction shorter stretch portion on the rear side of the front / rear direction long stretch portion 71. 71b and is integrally formed of a resin member. The first sliding member 70 is disposed so as to be movable in the front-rear direction on the support member 63 along the first solenoid housing chamber 64 having a rectangular shape in plan view. It is regulated by a plurality of ribs 63 c formed on 63.

  The front / rear direction elongated portion 71 is an elongated rectangular portion in plan view that extends long in the front / rear direction, and a semicircular arc-shaped recess 71c for cooperating with the lock lever 50a is formed at the front end thereof. The semicircular arc-shaped recess 71c is disposed so as to be positioned in the first sliding portion lock chamber 63d, and is formed on the rear side of the first horizontal portion 51a of the lock lever 50a in the first sliding portion lock chamber 63d. It arrange | positions so that it may cooperate with the hanging part 51a2 (refer FIG. 3) made.

  The front / rear direction elongated portion 71a is a portion that bends to the left from the rear side of the front / rear direction elongated portion 71 and further extends shorter in the front / rear direction, and a concave-shaped first valve drive shaft support portion 74 is formed at the tip side. The first valve drive shaft support portion 74 is formed behind the rear end portion of the support member 63.

  The left-right direction short extension part 71b is a part extended rightward from the part which connects the front-rear direction long extension part 71 and the front-rear direction short extension part 71a, and a semicircular arc shape whose front and upper sides are open on the right end side. A semicircular arc space 71e is formed. And the coil spring 72 is arrange | positioned between the back wall surface of the left-right direction short extension part 71b, and the inner wall end surface 63e of the lid lower member 42, and, thereby, always urges | biases the 1st sliding member 70 to the front side. .

  A spring support 69a of the first plunger 69 is accommodated in the semicircular arc space 71e. When the first solenoid 68 is turned off, the spring support 69a moves the entire first sliding member 70 backward by the spring force of the coil spring 69b. Pushing to the side. When the first solenoid 68 is on, the first plunger 69 is pulled forward together with the spring support 69a. However, since the spring support 69a and the semicircular space 71e are not connected, the first sliding member 70 does not move forward. However, in this case, since the coil spring 72 is interposed between the first sliding member 70 and the support member 63, the first sliding member 70 is moved forward of the first plunger 69 by the spring force of the coil spring 72. Move to the front side simultaneously with the movement to the side.

  In addition, a first valve drive member 73 is provided on the rear side of the short side extending portion 71b in the left-right direction, and the first valve drive member 73 is supported by the first valve drive shaft support portion 74. The first valve drive shaft support portion 74 of the first sliding member 70 is disposed such that the rotation shaft drive protrusion 73b formed on the left end side of the rotation shaft 73a is positioned in the recess, and the first The reciprocating motion of the sliding member 70 is converted into the reciprocating rotational motion of the rotational shaft 73a, and the reciprocating rotational motion of the rotational shaft 73a is formed on the right end side of the rotational shaft 73a. Thus, the first spherical valve 99 is driven.

  The first valve drive shaft support portion 74 is formed with an opening 74a through which the rotation shaft drive projection 73b is inserted on the left end side, and a packing storage portion 74b on the right end side. The first valve drive shaft support portion 74 is formed at the center of the packing storage portion 74b. An opening 74c through which the one-valve operating projection 73c is inserted is formed. A packing 62 having a fitting groove 62a and a seal film 62b is provided on the lower surface side of the packing storage portion 74b. The sealing film 62b is formed of a downward-cone-shaped flexible plastic member, and the upper end portion of the packing 62 serves as a fitting portion 62b and is fitted and fixed to the lower surface side of the packing storage portion 74b.

  The leading edge of the first valve actuation projection 73c of the first valve drive member 73 reaches the seal tip 62c at the lowermost end of the seal film 62b from the opening 74c of the first valve drive shaft support 74 to the inside of the seal film 62b. Is inserted. And this seal | sticker front-end | tip part 62c is arrange | positioned so that the 1st spherical valve 99 may be opposed.

  Although the detailed driving state of the first spherical valve 99 at the seal tip 62c will be described later, when the first solenoid 68 is turned off, the first spherical valve 99 is pushed to open the first vent hole 97, and the first solenoid 68 Since the first spherical valve 99 is separated from the first spherical valve 99 when it is turned on, the first spherical valve 99 moves directly above the first vent hole 97 by its own weight and closes the first vent hole 97.

  A second solenoid 75 is housed horizontally and in the front-rear direction in the second solenoid housing chamber 66 on the support member 63. At the upper and lower ends of the side wall surface of the second solenoid 75, there are provided mounting flanges 75a having a rectangular shape in plan view and extending in the left-right direction in the same manner as the first solenoid 68, and having a screw hole 75b at the center. 6 (shown from the right rear side in FIG. 3), and the second solenoid 75 is fixed to the lid lower member 42 by screwing a screw through the screw hole 75b. The second solenoid 75 is provided with a second plunger 76 that is a horizontal moving member that moves forward and backward when the second solenoid 75 is turned on and off.

  The second plunger 76 is provided in the front-rear direction, and a C-shaped spring support 76a is attached to the tip of the second plunger 76, and the second solenoid 75 and spring support are inserted into the outer periphery of the second plunger 76. A coil spring 76b is inserted between the tool 76a. The second plunger 76 is drawn backward from the second solenoid 75 when the second solenoid 75 is off.

  As shown in FIGS. 3 and 6, the second sliding member 77 that is a sliding portion is a resin member that is integrally formed in an L-shape in a plan view having a left-right direction extending portion 78 and a front-rear direction extending portion 79. And is disposed on the support member 63 so as to be movable in the front-rear direction. The front-rear direction extending portion 79 is a rectangular portion in plan view that extends in the front-rear direction, and movement in the up-down direction and the lateral direction is restricted by ribs 63 f formed on the support member 63.

  The left-right direction extending portion 78 is a portion that is orthogonally connected to the front-rear direction extending portion 79, and has a semicircular arc groove space 78a (FIG. 6) having a front portion and an upper opening at a substantially central portion. Reference) is integrally formed, and two cylindrical protrusions 80 projecting rearward are formed at the lower end of the rear wall 78b so as to be separated in the left-right direction. A spring support 76a for the second plunger 76 is housed in the semicircular groove space 78a. When the second solenoid 75 is turned off, the spring support 76a is slid by the spring force of the coil spring 76b. The entire member 77 is pushed backward.

  When the second solenoid 75 is on, the second plunger 76 is pulled forward together with the spring support 76a. However, since the spring support 76a and the semicircular groove space 78a are engaged, the second sliding member 77 is engaged. Are also moved forward at the same time. A spring groove 80 a is provided at the inner upper end of each of the two cylindrical protrusions 80, and a stainless steel rod-shaped spring bar 81 engaged with the rotating member 87 is fitted into the spring groove 80 a. Yes.

  A rotating member unit 85 is provided on the rear side of the second sliding member 77 so as to face the rear wall surface 78b. The structure of the rotating member 85 is a known one as shown in Patent Document 2 above.

  The rotating member unit 85 includes a storage casing 86, a rotating member 87, an interlocking member 88 and a spring 89. The storage casing 86 is a front rear circular resin member in plan view, and the front side of the rectangular portion is open at the top and faces both side walls. A bearing groove 86a for supporting the shaft 87c is formed.

  Further, the circular portion on the rear side is open in the vertical direction, and a roof portion 86b having a cross-sectional gate shape that is pointed in the left-right direction is formed above the circular portion, and the opposite side surfaces thereof are formed. Thus, a sliding groove 86c for sliding the interlocking member 88 in the vertical direction is formed. Further, two mounting flanges 86d having screw holes 86d1 are provided on the side wall surface of the storage casing 86 so as to face each other. By screwing screws through the screw holes 86d1, the storage casing 86 is attached to the lid lower member 42. Fixed to.

  The rotating member 87 is a rectangular resin member that is elongated in the front-rear direction in plan view and includes the front flat plate portion 87a and the rear flat plate portion 87b. The rear flat plate portion 87b is slightly longer than the front flat plate portion 87a. The flat plate portion is bent at a substantially right angle with the two flat plate portions as a boundary, and the front flat plate portion 87a is attached substantially downward and the rear flat plate portion 87b is attached substantially horizontally. The rotating member 87 has a seesaw structure and has a function of converting a horizontal force into a vertical direction.

  The tip end portion 87b1 of the rear side flat plate portion 87b is formed in a form that is lowered by one step, and the interlocking member 88 is inserted therein. In addition, a rotating shaft 87c is integrally provided in the vicinity of the base of the rear flat plate portion 87b so as to project in the left-right direction. And the front-end | tip part 87b1 of the back side flat plate part 87b is inserted in the interlocking member 88 inserted below the roof part 86b of the storage casing 86, and the rotating shaft 87c is fitted in the bearing groove 86a of the storage casing 86. It is pivotally supported.

  The interlocking member 88 is a resin member having a frame body 88a and a valve pressing projection 88b. The frame body 88a is a B-shaped portion having a B-shaped through-hole 88a1 in the center, and the inside of the through-hole 88A1. The tip end portion 87b1 of the rotating member 87 is inserted. The width of the frame 88a is slightly shorter than the sliding groove 86c of the storage casing 86, and the whole is inserted into the sliding groove 86c.

  Further, the valve pressing projection 88b is integrally provided so as to hang from the lower end portion of the frame body 88a, and protrudes downward from the storage casing 86 when the frame body 88a is inserted into the sliding groove 86c of the storage casing 86. Become a form.

  The spring 89 is a coil spring having a circular portion 89a at the center, a U-shaped portion 89b at one end, and an L-shaped portion 89c at the other end, and the circular portion 89a is inserted into the rotating shaft 87c of the rotating member 87, The portion 89 b is locked to the upper surface of the rear flat plate portion 87 b of the rotating member 87, and the L-shaped portion 89 c is locked to the front wall 85 a of the storage casing 86. As a result, the spring 89 is mounted with a displacement in the rewinding direction, and the rotating member 87 is imparted with a clockwise rotation with respect to the storage casing 86. That is, the valve pressing protrusion 88b is always pressed to the lowest position. In this case, the downward movement of the rotation member 87 is restricted by the upper circular end on the rear side of the storage casing 86, and the upward movement of the rotation member 87 is restricted by the lower end of the roof portion 86 b of the storage casing 86.

  Here, attachment of the rotating member unit 85 will be described. First, the storage casing 86 is placed in the reverse direction, and the interlocking member 88 is inserted into the sliding groove 86c of the storage casing 86 so that the valve pressing projection 88b faces upward.

  Next, the rotating member unit 85 is erected, and the distal end portion 87b1 of the rotating member 87 is pushed below the roof portion 86b while moving the interlocking member 88 with a finger, and the distal end portion 87b1 is inserted into the through-hole 88a1 of the interlocking member 88. Insert inside. In that case, the circular portion 89a of the spring 89 is inserted into the rotating shaft 87c of the rotating member 87, and the U-shaped portion 89b is locked to the upper surface of the rear side flat plate portion 87b.

  Next, the rotation shaft 87 c of the rotation member 87 is fitted into the bearing groove 86 a of the storage casing 86. Thereby, the rotation member unit 85 is completed. The assembled rotating member unit 85 is fixed on the valve cover 60 as shown in FIG. 2 by screwing screws through screw holes 86d1 of two mounting flanges 86d formed on the side wall surface of the storage casing 86. Is done.

  When the rotating member unit 85 is fixed on the valve cover 60, the front flat plate portion 87a of the rotating member 87 is inserted between the rear wall surface 78b of the second sliding member 77 and the spring bar 81, and As shown in FIG. 10, when the second solenoid 75 is turned off, the second plunger 76 protrudes rearward, and the front flat plate portion 87 a of the rotating member 87 is moved rearward via the rear wall surface 78 b of the second sliding member 77. To turn the turning member 87 counterclockwise. As a result, the valve pressing projection 88b is pulled upward from the second spherical valve 102. The spring bar 81 is a kind of elastic member, and when a sudden force is applied to the rotating member 87 from the second solenoid 75 side or the valve pressing projection 88b side, the force can be absorbed and relieved. The spring 89 is set weaker than the coil spring 76b.

  Then, as shown in FIG. 11, when the second solenoid 75 is turned on, the second plunger 76 is pulled forward to move the second sliding member 77 forward. Then, the front flat plate portion 87a of the rotating member 87 is pushed forward by the spring bar 81, and the entire rotating member 87 is given a clockwise spring force by the spring 89. It rotates, and the valve pressing protrusion 88b presses the second spherical valve 102 from above, and further increases the force with which the second spherical valve 102 opens.

  A part of the lower lid member 42 is a valve cover 60. Although not shown in the top surface of the valve cover 60, at least a first valve driving opening 93 d formed in the steam cap 93 and Circular openings are respectively provided at positions corresponding to the second valve driving openings 93e (see FIG. 12). An opening formed at a position corresponding to the first valve driving opening 93d of the valve cover 60 has a fitting groove 62a around it, a seal film 62b inside, and a seal tip 63c. A generally circular cone-shaped packing 62 (see FIG. 5) extending to a position facing the side surface of the spherical valve 99 is fitted, thereby sealing the inside and outside of the opening. The first valve actuation protrusion 73c of the first valve drive member 73 is inserted into the center of the seal film 62b of the packing 62 up to the seal tip 63c, and the seal film 62b reciprocates together with the first valve actuation protrusion 73c. It is made to do.

  Moreover, the opening formed in the position corresponding to the 2nd valve drive opening 93e of the valve cover 60 has a fitting groove 90a in the circumference | surroundings, and the circular shape as a whole which has the circular shaped sealing film 90b in the inside. The packing 90 (see FIG. 6) is fitted, thereby sealing the inside and outside of the opening. A valve pressing protrusion 88b provided at the lower end of the frame body 88a is fitted in the center of the circular sealing film 90b of the packing 90, and the circular sealing film 90b is vertically moved together with the valve pressing protrusion 88b. Moving.

  An inner lid 91 is detachably attached to the lower side of the lid 40 so as to face the inner pot 23. A valve unit 92 is attached to the upper surface of the inner lid 91 by a base covering member 103 in a form located below the valve cover 60. An inner lid 91 is attached to the lid lower member 42, and a steam cap 93 (see FIGS. 2 and 4) is disposed between the lower surface of the valve cover 60 and the upper surface of the valve unit 92.

  The valve unit 92 is provided with a first valve storage chamber 94, a second valve storage chamber 95, and a safety valve 96 (see FIG. 13) as necessary. The first valve storage chamber 94 is an inverted U-shaped section having an opening 94a in the front-rear direction, and a mortar-shaped first valve mounting portion 98 having a first vent hole 97 in the center therein (FIG. 1 and 3), and a first spherical valve 99, which is a valve body, is disposed above the first spherical valve 99.

  The first vent hole 97 communicates with the inner pot 23. When the first spherical valve 99 opens the first vent hole 97, the steam in the inner pot 23 flows into the steam cap 93, and then in the steam cap 93. The ribs 93h of the steam cap 93 are discharged to the outside through a steam outlet 93g of the steam cap 93 and a steam outlet 44 provided on the upper surface of the lid upper member 41. When the inner lid 91 is inserted into the lower surface of the lid lower member 42, the first valve storage chamber 94 enters the valve cover 60 formed in a form protruding upward from the lower surface of the lid lower member 42, and A side surface of the first spherical valve 99 is positioned to face the first valve operation protrusion 73c.

  The second valve storage chamber 95 is an inverted U-shaped section having an opening 95a in the upward direction, and a mortar-shaped second valve mounting portion 101 having a second vent hole 100 in the center thereof. (Refer to FIG. 10 and FIG. 11) is provided, and a second spherical valve 102 which is a valve body is disposed above it. The second valve storage chamber 95, the second valve mounting portion 101, and the second spherical valve 102 are smaller and lighter than the first valve storage chamber 94, the first valve mounting portion 98, and the first spherical valve 99. It has been.

  The second vent hole 100 is also communicated with the inner pot 23. When the second spherical valve 102 opens the second vent hole 100, the steam in the inner pot 23 similarly flows into the steam cap 93, and then steam. Guided by a rib 93 h in the cap 93, the steam is discharged to the outside through a steam outlet 93 g of the steam cap 93 and a steam outlet 44 provided on the upper surface of the lid upper member 41. Then, when the inner lid 91 is inserted into the lower surface of the lid lower member 42, the second valve storage chamber 95 enters the valve cover 60 formed in a form protruding upward from the lower surface of the lid lower member 42, and The second spherical valve 102 is positioned to face the valve pressing protrusion 88b.

  The first solenoid 68, the first plunger 69, the first sliding member 70, the first valve driving member 73, and the first spherical valve 99 constitute a first pressure adjusting device. The first pressure adjusting device is configured such that when the first solenoid 68 in which pressurized rice cooking is not selected is not activated (off), the first plunger 69 is pushed outward and the first sliding member is slid rearward. The first valve operating projection 73c is rotated to push the first spherical valve 99 and the first vent hole 97 is opened (non-pressurized rice cooking).

  When the first solenoid 68 is activated (turned on) when pressurized rice cooking is selected, the first plunger 69 is retracted, and the first valve actuation protrusion 73c is separated from the first spherical valve 99, so the first spherical valve 99 is It moves directly above the first vent hole 97 by its own weight and closes the first vent hole 97.

  As a result, rice cooking is performed at a pressure corresponding to the weight of the first spherical valve 99, and when the pressure in the inner pot 23 is higher than that, excess steam pushes up the first spherical valve 99 and from the first vent hole 97. It is discharged (high pressure cooking rice). The opening pressure of the heavy first bulb valve 99 is set to, for example, 1.25 atm. When the vapor pressure reaches that pressure, the opening pressure is raised to open the first vent hole 97.

  The second solenoid 75, the second plunger 76, the second sliding member 77, the rotating member 87, and the second spherical valve 102 constitute a second pressure adjusting device. In the second pressure adjusting device, when the second solenoid 75 is not activated (OFF) when pressure rice cooking is not selected, the second plunger 76 is pushed outward, the rotating member 87 is rotated counterclockwise, and the valve The pressing protrusion 88 b is located above the second spherical valve 102.

  As a result, the second vent hole 100 is closed by the weight of the second spherical valve 102 (non-pressurized rice cooking or low-pressure rice cooking). Note that the opening pressure of the second spherical valve 102 having a light weight is set to, for example, 1.05 atm. When the vapor pressure reaches that pressure, the opening pressure is raised to open the second vent hole 100.

  When pressurized rice cooking is selected, the second solenoid 75 is activated (turned on), the second plunger 76 is retracted, the rotating member 87 is rotated clockwise, and the valve pressing protrusion 88b is the second spherical valve. 102 is pressed from above.

  As a result, the second vent hole 100 is closed by the weight of the second spherical valve 102 and the pressing force from above. The opening pressure of the second spherical valve 102 to be pressed is set to be greater than, for example, 1.25 atm. When the vapor pressure reaches that pressure, the opening pressure is raised to open the first vent hole 97. In this case, when the pressed second spherical valve 102 is opened, for example, the first spherical valve 99 is abnormally closed and is set to function as a safety valve.

  The safety valve 96 (see FIG. 13) is opened at a pressure higher than the pressure of the pressed second spherical valve 102, for example, a pressure of 1.30 atm or more. The two-bulb valve 102 is opened at the time of further abnormality such as not opening.

  A liquid crystal panel and various switch buttons (not shown) are provided on the front side of the lid 40. In addition, in this invention, a 2nd pressure regulator is a structure required when performing multi-stage pressure rice cooking which performs not only normal rice cooking (non-pressure rice cooking) and high pressure rice cooking but also low pressure rice cooking. In the case of a pressure-type rice cooker that performs only two-stage pressure rice cooking, that is, normal rice cooking (non-pressure rice cooking) and high pressure rice cooking, this is not necessarily a necessary configuration. However, below, it demonstrates concretely about the case where it applies to the pressure type rice cooker which performs multi-stage pressure rice cooking of normal rice cooking (non-pressure rice cooking), low pressure rice cooking, and high pressure rice cooking.

  In the menu displayed on the liquid crystal panel of the lid 40, normal rice cooking (non-pressurized rice cooking), low-pressure rice cooking, and high-pressure rice cooking are set. Is turned off (the first vent hole 97 is open) and the second solenoid 75 is turned off (the second vent hole 100 is closed by the weight of the second spherical valve 102), and when low pressure rice cooking is selected, Rice cooking is performed when the first solenoid 68 is on (the first vent hole 97 is closed) and the second solenoid 75 is off (the second vent hole 100 is closed by the weight of the second spherical valve 102). Is selected, the first solenoid 68 is on (the first vent hole 97 is closed) and the second solenoid 75 is on (the second vent hole 100 is closed by the weight of the second spherical valve 102 and the pressing force from above). Cooking rice is performed.

  At the time of high pressure rice cooking, when the pressure in the inner pot 23 becomes 1.25 atm, the first spherical valve 99 opens the first vent hole 97 so that the pressure in the inner pot 23 does not exceed 1.25 atm. . If the pressure does not cause the first spherical valve 99 to open the first vent hole 97 (that is, when there is an abnormality) and the pressure in the inner pot 23 becomes 1.30 atm or higher, the second spherical valve is in a pressed state. 102 is pushed up, and the second vent hole 100 is opened. These rice cooking is performed by controlling the energization amount to the bottom part work coil 27, the side part work coil 28, etc. with the control circuit provided in the control board 32 grade | etc.,.

  First, the non-pressurized rice cooking time will be described. When non-pressurized rice cooking is selected, the first solenoid 68 and the second solenoid 75 are turned off. When the first solenoid 68 is turned off, the first plunger 69 is pushed rearward together with the first sliding member 70, and the forward force to the first valve driving member 73 by the first sliding member 70 disappears. The rotating shaft 73a is rotated by the force of the rotating shaft coil spring 73d. The rotation of the rotation shaft drive protrusion 73b rotates the first valve operating protrusion 73c and pushes it in the horizontal direction of the first spherical valve 99, thereby opening the first vent hole 97.

  When the second solenoid 75 is turned off, the second plunger 76 pushes the turning member 87 and turns counterclockwise, pulling the valve pressing projection 88b of the interlocking member 88 upward from the second spherical valve 102, The force for closing the second vent hole 100 is set to the weight of the second spherical valve 102 only. As a result, the inside of the inner pot 23 is always communicated with the atmosphere via the first vent hole 97.

  Next, the low pressure rice cooking time is demonstrated. When low pressure rice cooking is selected, the first solenoid 68 is turned on and the second solenoid 75 is turned off. When the first solenoid 68 is turned on, the first plunger 69 is pulled forward together with the first sliding member 70 and is transmitted to the rotating shaft driving protrusion 73b of the first valve driving member 73 to move the rotating shaft 73a. Since it is rotated in the direction opposite to that during non-heated rice cooking, the first valve operating projection 73 c is separated from the first spherical valve 99, and the first vent hole 97 is closed by the first spherical valve 99.

  When the second solenoid 75 is turned off, the second plunger 76 pushes the turning member 87 and turns counterclockwise, pulling the valve pressing projection 88b of the interlocking member 88 upward from the second spherical valve 102, The force for closing the second vent hole 100 is set to the weight of the second spherical valve 102 only.

  As a result, when the pressure in the inner pot 23 becomes 1.05 atm or more, the second spherical valve 102 is lifted, the second vent hole 100 is opened and excess steam is discharged, and the inside of the inner pot 23 is near 1.05 atm. Adjust the pressure to.

  Next, the high pressure rice cooking time is demonstrated. When high pressure rice is selected, the first solenoid 68 and the second solenoid 75 are turned on. When the first solenoid 68 is turned on, the first plunger 69 is pulled forward together with the first sliding member 70 and is transmitted to the rotating shaft driving protrusion 73b of the first valve driving member 73 to move the rotating shaft 73a. Since it is rotated in the direction opposite to that during non-heated rice cooking, the first valve operating projection 73 c is separated from the first spherical valve 99, and the first vent hole 97 is closed by the first spherical valve 99.

  When the second solenoid 75 is turned on, the second plunger 76 is pulled forward together with the second sliding member 77, and the rotating member 87 is rotated clockwise by the action of the spring bar 81 and the spring 89. Then, the valve pressing projection 88b presses the second spherical valve 102 from above.

  As a result, when the pressure in the inner pot 23 becomes 1.25 atm or more, the first spherical valve 99 is lifted, the first vent hole 97 is opened and excess steam is discharged, and the inside of the inner pot 23 is near 1.25 atm. Adjust the pressure to. In this way, the first pressure adjusting device and the second pressure adjusting device are separately made to operate differently to perform multi-stage pressure adjustment.

  Note that when the first spherical valve 99 does not open the first vent hole 97 and the pressure in the inner pot 23 becomes 1.30 atm or higher, the second spherical valve 102 in the pressed state is pushed up and the second The vent hole 100 is opened. In this case, the second solenoid 75 is in the on state, and both the second plunger 76 and the second sliding member 77 are pulled forward, but the rotating member 87 is engaged via the spring bar 81. When a pressure of 1.30 atm or more is applied to the lower part of the second spherical valve 102, the rotating member 87 can be rotated counterclockwise by pushing and extending the spring bar 81 rearward. The two-spherical valve 102 is pushed upward together with the valve pressing projection 88b to open the second vent hole 100.

  Further, when a further abnormal state occurs in which the first spherical valve 99 does not open the first vent hole 97 and the second spherical valve 102 does not open the second vent hole 100, the safety valve 96 is provided. Abnormalities can be avoided. In any case, by ensuring that the second spherical valve 102 in the pressed state functions as a safety valve, and further by allowing the safety valve 96 to function as a second safety valve, the safety of the pressure rice cooker can be ensured more reliably. Will be able to.

  8 and 9, the relationship between the first spherical valve 99 and the first vent hole 97 when the first solenoid 68 as the first pressure adjusting device is turned on and off, and other actions of the first sliding member 70, that is, A description will be given of an action in which steam is discharged before the lid 40 is opened when the lid 40 is opened during the pressure rice cooking. 8A is a perspective view showing a state in which the first pressure adjusting device is not operating (when the solenoid is off), FIG. 8B is a longitudinal sectional view taken along line VIIIB-VIIIB in FIG. 8A, and FIG. It is a longitudinal cross-sectional view along the VIIIC-VIIIC line | wire of FIG. 8A. 9A is a perspective view showing a state in which the first pressure regulator is not operating (when the solenoid is off), FIG. 9B is a longitudinal sectional view taken along line IXB-IXB in FIG. 9A, and FIG. It is a longitudinal cross-sectional view along the IXC-IXC line of FIG. 9A.

  FIG. 8A shows a locked state in which pressurized rice cooking is not performed. In this state, the semicircular arc-shaped recess 71c formed on the front side of the first sliding member 70 and the hanging portion 51a2 (see FIG. 3) of the lock lever 50a are separated from each other. The first solenoid 68 is in an off state, the first plunger 69 and the first sliding member 70 are pushed out rearward, and as shown in FIGS. 8B and 8C, the first valve operating protrusion 73c is The first air vent 97 is opened by pushing the first spherical valve 99. The coil spring 72 is set to be weaker than the coil spring 69b.

  FIG. 9A shows a locked state during pressurized rice cooking. In this state, the semicircular arc-shaped recess 71c formed on the near side of the first sliding member 70 and the hanging portion 51a2 (see FIG. 3) of the lock lever 50a are separated from each other. The first solenoid 68 is in the on state, the first plunger 69 and the first sliding member 70 are pulled forward, and as shown in FIGS. 9B and 9C, the first valve operating projection 73c is Apart from the first spherical valve 99, the first vent 97 is closed as a result.

  When the pressing button 50 is pressed during the pressure cooking and the lid opening operation is performed, the lock lever 50a is rotated in the clockwise direction that is the opening direction, and the hanging portion 51a2 of the lock lever 50a is moved to the first sliding member 70. It abuts on a semicircular arc-shaped recess 71c formed on the front side. When the hanging portion 51a abuts on the semicircular arc-shaped recess 71c, the hanging portion 51a cannot move downward, so that the lock lever cannot be opened even if the pressing button 50 is further pressed.

  Next, the attachment state of the steam cap 93 is demonstrated using FIGS. 12-145. 12 is an assembly perspective view of components such as a steam cap on the inner lid with the lower cover member removed, and FIG. 13 is an assembly perspective view with the upper case removed from FIG. 14 is an assembled perspective view with the lower case removed from FIG. 13, and FIG. 15A is a perspective view of the steam cap viewed from above, and FIG. 15B is a perspective view of the steam cap viewed from below. FIG. 15 is a longitudinal sectional view taken along line XVC-XVC in FIG. 15A.

  As shown in FIGS. 15A to 15C, the steam cap 93 has an upper case 93b and a lower case 93c, and the upper case 93b and the lower case 93c are fitted to each other so as to be attached and detached. On the outer surface of the upper case 93b, steel plates 93a are provided in at least one place, here three places. The steel plate 93a is opposed to the magnet 41a provided on the lower surface of the upper lid member 41 when the inner lid 91 with the steam cap 93 is assembled together with the lower lid member 42 and the upper lid member 41 to form the lid body 40. The lid upper member 41 and the steam cap 93 are stably fixed to each other.

  As shown in FIG. 12, a steam exhaust port 93g is formed on the surface of the upper case 93b, and is fitted to the inner surface side of the steam exhaust port 44 formed in the lower lid member 42 and protruding from the surface cover 40a. A steam discharge port 93g is formed (see FIG. 2). Further, a rib 93h that guides the steam to the steam outlet is formed on the inner surface side of the upper case 93b (see FIG. 15C). Further, on the front side of the upper case 93 b, a first valve driving opening 93 d into which the first valve operation protrusion 73 c is inserted via the seal tip 62 c of the packing 62 and a valve pressing member via the seal film 90 b of the packing 90. A second valve driving opening 93e into which 88b is inserted is formed.

  Around a pair of openings (not shown) formed in the valve cover 60, a first valve drive shaft support portion 74 (see FIG. 5) and a storage casing 86 (see FIG. 6) are provided through packings 62 to 90, respectively. The first valve drive shaft support 74 and the valve cover 60 and the storage casing 86 and the valve cover are hermetically sealed by the packing 62 and the seal film 62b or the packing 90 and the seal film 90b, respectively. In this case, since the first valve drive shaft support portion 74 and the valve cover 60 and the storage casing 86 and the valve cover 60 are arranged in a mutually opposed state, the compression allowance of the packings 62 and 90 increases, and this portion This reduces the risk of steam leakage.

  Further, a valve unit insertion opening 93f (see FIGS. 15B and 15C) is formed in the lower surface of the front side of the lower case 93c. The steam cap 93 is formed with a valve unit 92 provided with a first valve storage chamber 94, a second valve storage chamber 95, and a safety valve 96 attached to the upper surface of the inner lid 91 on the front side of the lower case 93c. It is attached to the inner lid 91 so as to cover the valve unit insertion opening 93f (see FIGS. 12 to 14). Thereby, the steam that has passed through the first valve storage chamber 94 or the second valve storage chamber 95 from the inner pot 23 passes through the inside of the steam cap 93, and the steam discharge port 93 g of the steam cap 93 and the lid lower member 42. The steam is discharged to the outside through the steam outlet 44.

  When the inner lid 91 attached to the lid 40 is removed downward, the inner lid 91 is detached from the lid 40 alone. Thereafter, when the steam cap 93 is removed downward, the first valve operating projection 73c and the valve pressing member 88b can be easily pulled upward from the first valve driving opening 93d or the second valve driving opening 93e. The steam cap 93 can be detached from the lid body 40 alone. And since the upper case 93b and lower case 93c of the steam cap 93 can be isolate | separated as shown in FIG. 13, the inside of the steam cap 93 becomes easy. In addition, when it is necessary to clean only the inner lid 91, the inner lid 91 can be detached from the lid body 40 alone, and the inner lid and the steam cap are simultaneously removed downward as in the conventional example. Therefore, the inner lid 91 can be easily cleaned.

  As mentioned above, as an embodiment of the present invention, a pressure rice cooker having a first spherical valve and a second spherical valve and capable of adjusting pressure in multiple stages has been described as an example. If a pressure adjusting device that can be pressed in the horizontal direction by the rotation of the valve operating projection is provided, a predetermined effect can be obtained. Further, the present invention is not limited to the configuration of the above-described embodiment, and the design can be appropriately changed without departing from the gist of the invention. For example, the heating means may be a heater, the inner pot is made of metal, ceramic Any material may be used such as manufactured.

DESCRIPTION OF SYMBOLS 20 ... Pressure type rice cooker 21 ... Rice cooker main body 40 ... Cover body 40a ... Surface cover 41 ... Cover upper member 41a ... Magnet 42 ... Cover lower member 44 ... Steam discharge port 46 ... Reinforcement member 50 ... Push button 50a ... Lock lever 60 ... Valve cover 62 ... Packing 62c ... Seal tip 63 ... Support member 68 ... First solenoid 69 ... First plunger 70 ... First sliding member 73 ... First valve drive member 73a ... Rotating shaft 73b ... Rotating shaft drive Projection 73c ... First valve actuation projection 74 ... First valve drive shaft support 75 ... Second solenoid 76 ... Second plunger 77 ... Second sliding member 87 ... Rotating member 87c ... Rotating shaft 88b ... Valve pressing member 90 ... Packing 90b ... Seal film 91 ... Inner lid 92 ... Valve unit 93 ... Steam cap 93a ... Steel plate 93b ... Upper case 93c ... Lower case 93d ... For driving the first valve Opening 93e ... 2nd valve drive opening 93f ... Valve unit insertion opening 93g ... Steam discharge port 94 ... 1st valve storage chamber 95 ... 2nd valve storage chamber 98 ... 1st valve mounting part 99 ... 1st spherical valve 101 ... 2nd valve mounting part 102 ... 2nd spherical valve

Claims (3)

A pressure rice cooker having a rice cooker body and a lid located above the rice cooker body,
The rice cooker body has an inner pot and heating means for heating the inner pot,
The lid has an inner lid that covers the opening of the inner pot and covers the opening of the lid, a pressure adjusting device, and a steam cap.
The pressure adjusting device includes a vent unit attached to the inner lid and a valve unit having a spherical valve body for opening and closing the vent hole, and opening and closing the vent hole by pressing the spherical valve body in a horizontal direction. Valve body driving means for
The steam cap covers the valve unit and discharges steam leaked from the vent hole to the outside of the lid, and a valve driving opening formed at a position facing the spherical valve body Have
The inner lid is provided so as to be attachable to and detachable from the lid body,
The steam cap is arranged to be attachable to and detachable from the lid,
The valve body drive means has a valve operation protrusion that extends from above the steam cap to the side surface of the spherical valve body through the valve drive opening,
A pressure rice cooker configured to press the spherical valve body in a horizontal direction by rotating the valve operating projection.   The pressure rice cooker according to claim 1, wherein a magnet is provided on the inner surface side of the lid, and a steel plate is provided on the outer surface side of the steam cap. The pressure adjusting device further includes a second valve unit having a second vent hole attached to the inner lid and a second spherical valve body for opening and closing the second vent hole, and the second spherical unit. A second valve driving means for closing the second vent hole on the second spherical valve body by pressing the valve body in a vertical direction;
The second valve driving means has a pressing member extending from above the steam cap into the steam cap through the second valve driving opening,
The pressure rice cooker according to claim 1 or 2, wherein the second spherical valve element is pressed in the vertical direction by the pressing member.

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