JP6136512B2 - rice cooker - Google Patents

Description

  The present invention relates to a rice cooker.

  In the past, “a main body for storing the pan, a lid that covers the top opening of the pan, a heating plate that is detachably disposed on the inner surface of the lid, a heating plate support that holds the outer periphery of the heating plate, and a lid Provided on the body and a hook part disposed on the main body for engaging with a hook lever that is rotated, a contact piece provided at the rear part of the hook part, and a shaft provided at the approximate center of the hook part And a biasing spring that biases the tip of the hook portion upward, and when the heating plate is not mounted, the hook portion pivots the tip upward by the biasing spring to prevent the hook lever from being locked. In addition, there has been proposed a rice cooker in which a heating plate support presses a contact piece and locks a hook portion to a hook lever when the heating plate is mounted (see, for example, JP-A-2004-202270).

JP 2004-202270 A

  By the way, the user of the rice cooker usually tries to close the lid with the same force as when the heating plate is mounted even when the user forgets to mount the heating plate. If the operation of closing the lid with a normal force is repeated many times in a state where the user has forgotten to attach the heating plate, the hook portion itself may be damaged and the hook portion mounting structure may be distorted. . If it becomes so, not only it will become difficult to close a cover body but the possibility that the external appearance of a rice cooker may be spoiled arises. And when the distortion becomes large, the adhesiveness between the inner pot and the lid may be lowered, and there is a possibility that water vapor may leak out during cooking.

  The present invention makes it easy to forget to attach the inner lid even if the operation for closing the lid with normal force is repeated many times in the state where the inner lid is forgotten to be worn, and the risk of causing distortion in the locking structure is extremely low. It is to provide a rice cooker with a prevention function.

The rice cooker according to the present invention includes a main body, a lid, an inner lid, a locked portion, a locking mechanism, and a locking control mechanism. The lid is attached to the main body so as to be opened and closed. The lid may be installed or detachable. The inner lid is detachably attached to the lower surface of the lid. The locked portion is fixedly provided on the lid. The locking mechanism is provided on the main body. And this latching mechanism latches a to-be-latched part. The locking control mechanism has a protrusion. The locking control mechanism is configured such that when the inner lid is not attached to the lid body , the protruding portion protrudes in at least one of the front side and the upper side of the locked portion in a side view. When the inner lid is attached to the lid , the locking mechanism is configured to retract the protruding portion to a position that does not overlap the front and top surfaces of the locked portion when the inner lid is attached to the lid. It becomes the 2nd state which accept | permits the latching of the to-be-latched part by.

In this rice cooker, the locked portion corresponding to the hook portion is fixed to the lid, and a locking control mechanism is provided separately from the locked portion. For this reason, in this rice cooker, even if the operation of closing the lid with normal force is repeated many times in the state where the inner lid is forgotten to be mounted, the locking structure is not directly affected, The risk of causing distortion in the locking structure is extremely low. Further, in this rice cooker, not only can the locking control be realized with a relatively simple structure, but also a double locking state formed by the locked portion and the protruding portion can be prevented.

Moreover, in this rice cooker, it is preferable that the protrusion part is integrally formed with the contact part. In such a case, when the inner lid is attached to the lid body, the locking control mechanism is in the second state in which the protruding portion retracts to the retracted position as a result of a part of the inner lid contacting the contact portion.

  In this rice cooker, it is preferable that the locked portion is prevented from being locked by the locking mechanism even when the locking mechanism is operated when the locking control mechanism is in the first state. By doing in this way, it is because the inconvenience of rice cooking without an inner cover can be excluded reliably.

It is a disassembled perspective view of the rice cooker which concerns on embodiment of this invention. It is a longitudinal cross-sectional view of the rice cooker which concerns on embodiment of this invention. It is an expansion perspective view of the lid heater unit of the rice cooker which concerns on embodiment of this invention. It is a longitudinal cross-sectional view of the state which pulled out the cover unit completely from the 1st movable part of the rice cooker which concerns on embodiment of this invention (however, the latching control mechanism is abbreviate | omitted). In the rice cooker which concerns on embodiment of this invention, it is a longitudinal cross-sectional view of the state which the cover unit is going to be made into a closed state without attaching an inner cover. It is a longitudinal cross-sectional view of a state when the lid unit is further closed in FIG. It is a perspective view of a cover unit when the inner cover is mounted | worn in the rice cooker which concerns on embodiment of this invention. It is a perspective view of a cover unit when the inner cover is not mounted | worn in the rice cooker which concerns on embodiment of this invention. It is a perspective view of a main unit when a lock lever is in a locked state in a rice cooker concerning an embodiment of the invention. It is a perspective view of a main unit when a lock lever is in an unlocking state in a rice cooker concerning an embodiment of the invention. It is a longitudinal cross-sectional view of the rice cooker which concerns on a modification (B). It is a longitudinal cross-sectional view of the state which is not in the rice cooker which concerns on a modification (B), and the cover unit is going to be made into a closed state without mounting | wearing. It is a longitudinal cross-sectional view of a state when the lid unit is further closed in FIG. It is a longitudinal cross-sectional view of the rice cooker which concerns on a modification (C). It is a longitudinal cross-sectional view of the state which the cover unit is going to be made into a closed state, without attaching an inner cover in the rice cooker which concerns on a modified example (C). It is a longitudinal cross-sectional view of a state when the lid unit is further closed in FIG.

  As shown in FIGS. 1 and 2, the rice cooker 100 according to the embodiment of the present invention mainly includes a main unit 200, a lid unit 300, a first hinge mechanism 350, a lid heater unit 400, and a second hinge mechanism. 450, an inner lid 500 and an inner pot 600. Hereinafter, the components of the rice cooker 100 will be described in detail.

<Components of rice cooker>
1. Main unit The main unit 200 is basically the same as the main unit of the conventional rice cooker. As shown in FIGS. 1 and 2, the main unit case 201, the lock lever mechanism 207, the heater 202, the temperature sensor 204, It includes a room temperature sensor, an operation panel 203, a control circuit board 205, a power supply circuit board 206, and the like. The heater 202, the temperature sensor 204, the room temperature sensor, the control circuit board 205, the power supply circuit board 206, and the like are built in the main body case 201, and the operation panel 203 is disposed on the front upper surface of the main body case 201.

  As shown in FIGS. 1, 9 and 10, the lock lever mechanism 207 is mainly composed of a lever member 207a, a first lever rotating shaft 207b and a coil spring 207c. Has been placed. In the lock lever mechanism 207, the lever member 207a is pivotally supported by a first lever rotating shaft 207b extending along the width direction and is urged rearward by a coil spring 207c. For this reason, the lever member 207a normally stands up obliquely upward (see FIG. 9). However, when the user presses the lever member 207a downward, the lever member 207a is biased by the coil spring 207c. Rotates against and becomes horizontal. The former state is a lock state of the lock lever mechanism 207 (limited to a state where a hook portion 305 described later is locked), and the latter state is a lock release state of the lock lever mechanism 207.

  In addition, although mentioned later, the 1st support part 351 is being fixed to the back upper surface of this main body unit 200 (refer FIG. 1 and FIG. 3).

2. Lid Unit The lid unit 300 is mainly composed of a lid main body 301, a hook portion 305, a locking control mechanism 320, a mounting portion 302, and a steam unit 310, as shown in FIGS. Hereinafter, these components will be described in detail.

(1) Lid body As shown in FIG. 4, the lid body 301 is mainly composed of an outer lid body 301a and an inner lid body 301b. A through hole for detachably storing the steam unit 310 is formed in the approximate center of the lid body 301. The outer lid body 301a and the inner lid body 301b are integrally fixed by screws (not shown) or the like, and a heat insulating space IS is formed therebetween to suppress heat radiation to the outside. Further, as shown in FIGS. 1 and 4, a dew receptacle 306 is formed on the inner lid body 301 b. The dew receptacle 306 plays a role of preventing the dew condensation water that may be generated on the back surface of the steam port 502 of the inner lid 500 from dropping or falling when the lid unit 300 is opened.

(2) Hook Part The hook part 305 is a portion having a pair of inverted triangular sections as shown in FIGS. 7 and 8 and is fixedly disposed on the front surface of the lid body 301. As described above, the hook portion 305 can be locked to the lever member 207a of the lock lever mechanism 207.

(3) Locking control mechanism Locking control mechanism 320 implements a function that prevents rice cooking without wearing inner lid 500 (hereinafter referred to as “an inner lid wearing forgetting prevention function”). As shown in FIGS. 2, 7, and 8, the locking control piece 321, the second lever rotating shaft 322, and a “torsion spring” (not shown) are mainly configured. Here, only a structural description of the locking control mechanism 320 will be given, and the details of the inner lid forgetting prevention function will be described later.

  The locking control piece 321 is an integrally molded product of resin, and as shown in FIG. 2, is mainly composed of a protruding portion 321a and a contact lever portion 321b. The locking control piece 321 is formed such that the contact lever portion 321b forms an angle of about 120 ° with respect to the protruding portion 321a. That is, the locking control piece 321 has a cross-sectional shape of a “he”. The protruding portion 321a is a substantially trapezoidal columnar portion, and is disposed so as to be able to appear and disappear through an opening provided between the pair of hook portions 305. The contact lever portion 321b is disposed on the hook portion side of the mounting position of the inner lid 500.

  The second lever rotating shaft 322 is inserted through a through hole formed in a base portion between the protruding piece 321a of the locking control piece 321 and the contact lever 321b. In addition, a “torsion spring” is disposed on the outer periphery of the second lever rotating shaft 322.

  A second lever rotating shaft 322 is inserted into the “torsion spring”. As shown in FIG. 8, the “torsion spring” biases the locking control piece 321 so that the protruding portion 321 a of the locking control piece 321 is positioned obliquely above the hook portion 305 in a side view. ing. At this time, the contact lever portion 321b of the locking control piece 321 faces obliquely downward and rearward as shown in FIG. 5 and FIG.

(4) Mounting part The mounting part 302 is a pair of parallel plate parts. When the lid unit 300 is attached to the first hinge mechanism 350, a lid unit attaching / detaching portion 352b (described later) of the first hinge mechanism 350 is inserted into the attachment portion 302.

  The lid unit 300 is attached to the main unit 200 via the first hinge mechanism 350 so as to be freely opened and closed. Further, the lid unit 300 can be detached from the main unit 200 (more specifically, the first movable portion 352 (see FIG. 3) of the first hinge mechanism 350) by being pulled upward in the fully opened state. It is like that. For this reason, this lid unit 300 can be washed and the like.

(5) Steam unit The steam unit 310 plays a role of releasing water vapor generated during rice cooking to the atmosphere, and is detachably accommodated in the through hole of the lid body 301 (see FIGS. 2 and 4). .

3. First Hinge Mechanism As shown in FIGS. 3 and 4, the first hinge mechanism 350 mainly includes a first support portion 351, a first movable portion 352, a first rotating shaft 353, and a “torsion spring” (see FIG. (Not shown). As described above, the first support portion 351 is fixed to the rear upper surface of the main unit 200. The first support portion 351 is provided with an eleventh bearing portion 351a. As shown in FIG. 4, the first movable portion 352 is a member having a substantially L-shaped cross section, and is mainly formed of a twelfth bearing portion 352a and a lid unit attaching / detaching portion 352b. The first rotating shaft 353 is inserted through the twelfth bearing portion 352a and the eleventh bearing portion 351a of the first support portion 351. That is, the first movable portion 352 is attached to the first support portion 351 so as to be rotatable by the first rotation shaft 353. The lid unit 300 is detachably attached to the lid unit attaching / detaching portion 352b. In addition, a “torsion spring” is disposed on the outer periphery of the first rotation shaft 353. The “torsion spring” urges the first movable portion 352 backward. That is, when the lock lever mechanism 207 changes from the locked state to the unlocked state in the normal use state, the lid unit 300 is automatically lifted rearward.

4). Lid Heater Unit Lid heater unit 400 is a substantially annular member as shown in FIGS. 3 and 4, and is mainly composed of a heater 401, a heat radiating plate 403, a heat insulating material 402, and a back plate 404. . The heater 401 is a spiral heating wire and generates heat when energized. The heat radiating plate 403 is a substantially annular metal plate, and plays a role of supplying the heat generated from the heater 401 to the inner pot 600 after making it uniform. The heat insulating material 402 is a substantially annular foam or the like, and is attached to the lid unit side of the heater 401, and plays a role of preventing heat generated from the heater 401 from being transmitted to the lid unit 300. The back plate 404 seals the heater 401 and the heat insulating material 402 in cooperation with the heat radiating plate 403. Note that, as shown in FIG. 1, a steam port portion 502 of the inner lid 500 described later is inserted into the inner hole of the lid heater unit 400.

5. Second Hinge Mechanism As shown in FIG. 3, the second hinge mechanism 450 mainly includes a second support part 451, a second movable part 452, and a second rotation shaft 453. The width dimension of the second hinge mechanism 450 is smaller than the width dimension of the first hinge mechanism 350 as shown in FIG. As shown in FIG. 3, the second support portion 451 is fixed to the first movable portion 352 of the first hinge mechanism 350. The second support portion 451 is provided with a 21st bearing portion 451a. Further, as shown in FIGS. 3 and 4, the second movable portion 452 is a substantially plate-like member, and mainly includes a twenty-second bearing portion 452a, a lid heater unit fixing portion 452b, and a rising rib 452c. Is formed. A second rotating shaft 453 is inserted through the twenty-second bearing portion 452a and the twenty-first bearing portion 451a of the second support portion 451. That is, the second movable portion 452 is attached to the second support portion 451 so as to be rotatable by the second rotation shaft 453. As shown in FIG. 3, the lid heater unit 400 is fixed to the lid heater unit fixing portion 452b. As shown in FIG. 4, the rising rib 452 c is formed on the back side of the 22nd bearing portion 452 a and is pressed by the rear end of the lid unit 300 when the lid unit 300 is mounted. When 300 is detached, it is released from the pressing. That is, when the rising rib 452c is pressed by the rear end of the lid unit 300, the lid heater unit fixing portion 452b rises to the back side. That is, when the lid unit 300 is attached to the lid unit attaching / detaching portion 352b of the first movable portion 352, the lid heater unit 400 rises to the back side. On the other hand, when the lid unit 300 is removed from the lid unit attaching / detaching portion 352b of the first movable portion 352, the lid heater unit 400 falls down naturally to the front side (see FIG. 3). This is because the center of gravity of the lid heater unit 400 is set in front of the second rotation shaft 453 in a side view.

  As shown in FIG. 2, the second hinge mechanism 450 is designed so that the heater 401 and the heat radiating plate 403 are positioned below the second rotating shaft 453 when the lid unit 300 is in the fully closed state. Has been.

  In addition, the second rotation shaft 453 of the second hinge mechanism 450 is positioned obliquely above and forward of the first rotation shaft 353 of the first hinge mechanism 350 in the fully closed state of the lid unit 300 (see FIG. 2). When the unit 300 is in a fully opened state, the unit 300 is located obliquely above and behind the first rotation shaft 353 of the first hinge mechanism 350. That is, when viewed with reference to the first rotation shaft 353 of the first hinge mechanism 350, “when the lid unit 300 is changed from the fully closed state to the fully opened state” or “the lid unit 300 is changed from the fully opened state to the fully closed state. When, ”the second rotation shaft 453 of the second hinge mechanism 450 moves along an arcuate trajectory centered on the first rotation shaft 353.

6). Inner lid As shown in FIG. 1, the inner lid 500 is a substantially annular member, and includes an inner lid body 501 and a steam port portion 502. The inner lid body 501 is a substantially annular metal member. The steam port 502 is a substantially cylindrical elastic member, and is disposed in the inner hole of the inner lid body 501 as shown in FIG. Further, the upper end portion of the steam port portion 502 functions as a packing.

7). Inner Pot The inner pot 600 is made of a material having good thermal conductivity such as aluminum, and is detachably accommodated in an inner pot accommodating chamber (not shown) of the main unit 200.

<Prevents forgetting to wear inner lid>
When the inner lid 500 is not attached to the lid unit 300, the protruding portion 321 a of the locking control piece 321 is positioned obliquely above the hook portion 305 by the “torsion spring” (the upper space of the hook portion 305 in the side view). The locking control piece 321 is biased (see FIGS. 5, 6 and 8). Even if the user attempts to close the lid unit 300 in this state, as shown in FIGS. 5 and 6, the protrusion 321a abuts against the lever member 207a of the lock lever mechanism 207, and the hook portion by the lever member 207a. Locking of 305 is completely prevented. Even if the user presses the lever member 207a downward to close the lid unit 300, the positional relationship between the hook portion 305 and the protruding portion 321a, the protruding length of the protruding portion 321a, and the rotation of the lever member 207a. The hook portion 305 is never locked to the lever member 207a due to factors such as movement angle restriction.

  On the other hand, when the inner lid 500 is attached to the lid unit 300, a part of the inner lid 500 abuts against the abutting lever portion 321b of the locking control piece 321 and abuts against the urging force of the “torsion spring”. The lever part 321b is pushed into the back side. If it does so, the protrusion part 321a of the latching control piece 321 will necessarily be rotated back. As a result, as shown in FIG. 7, the protruding portion 321 a is retracted to a position that does not overlap the front surface and the upper surface of the hook portion 305 in a side view. When the user attempts to close the lid unit 300 in this state, the lever 207a is pressed downward after the hook portion 305 contacts the lever member 207a, and the lever member 207a is rotated by a certain angle. Then, when the upper surface of the hook portion 305 moves below the lever member 207a, the hook portion 305 is locked by the lock lever mechanism 207, and the state shown in FIGS.

  That is, in this rice cooker 100, if the user forgets to attach the inner lid 500, the lid unit 300 is not closed, and the user can be prompted to attach the inner lid 500.

<Characteristics of rice cooker according to the embodiment of the present invention>
(1)
In the rice cooker 100 according to the embodiment of the present invention, if the user forgets to wear the inner lid 500 by the locking control mechanism 320, the lid unit 300 is not closed, and the user is prompted to wear the inner lid 500. it can.

(2)
In the rice cooker 100 according to the embodiment of the present invention, the hook portion 305 is fixedly disposed on the lid unit 300, and a locking control mechanism 320 is provided separately from the hook portion 305. For this reason, in this rice cooker 100, even if the operation of closing the lid unit 300 with normal force is repeated many times in a state where the inner lid 500 is forgotten to be mounted, there is a direct influence on the locking structure. Therefore, there is a very low possibility that the locking structure will be distorted.

(3)
In rice cooker 100 according to the embodiment of the present invention, when inner lid 500 is attached to lid unit 300, protruding portion 321a is retracted to a position that does not overlap the front surface and the upper surface of hook portion 305 in a side view. For this reason, in this rice cooker 100, formation of the double latching state by the hook part 305 and the protrusion part 321a of the latching control piece 321 can be prevented.

(4)
In the rice cooker 100 according to the embodiment of the present invention, even if the user presses the lever member 207a downward and tries to close the lid unit 300, the positional relationship between the hook portion 305 and the protruding portion 321a, the protruding portion The hook portion 305 is never locked to the lever member 207a due to factors such as the protruding length of 321a and the rotation angle restriction of the lever member 207a. For this reason, in this rice cooker 100, the inconvenience of rice cooking without an inner lid can be reliably eliminated.

<Modification>
(A)
In the rice cooker 100 according to the previous embodiment, the rotation type lock lever mechanism 207 is adopted, but a slide type lock lever mechanism may be adopted.

(B)
In the rice cooker 100 according to the previous embodiment, the rotation type locking control mechanism 320 is adopted, but a sliding type locking control mechanism 330 as shown in FIGS. 11 to 13 may be adopted. In addition, in the rice cooker 100A shown in FIGS. 11 to 13, the configuration other than the locking control mechanism 330 is the same as that of the rice cooker 100 according to the previous embodiment. The same reference numerals as those used in the embodiment are attached to the above drawings, and the description thereof is omitted.

  As described above, the locking control mechanism 330 according to the present modification is a sliding locking control mechanism, and mainly includes a locking control piece 331 and a coil spring 333 as shown in FIGS. Has been.

  The locking control piece 331 is an integrally molded product of resin, and mainly includes a protruding portion 331a, a slide lever portion 331b, and an opening portion 331c as shown in FIGS. The protruding portion 331a and the slide lever portion 331b are joined via the opening 331c, as shown in FIGS. The protruding portion 331a is a substantially quadrangular prism-shaped portion, and is disposed so as to be able to appear and disappear through an opening provided between the pair of hook portions 305. The slide lever portion 331b is a portion having an inclined surface S, and is disposed on the hook portion side of the mounting position of the inner lid 500. The inclined surface S is inclined downward from the opening side toward the rear end. The opening 331c is a frame-shaped part and has an opening OP.

  The coil spring 333 is provided with a locking control piece 331 so that the protruding portion 331a of the locking control piece 331 is positioned in front of the hook portion 305 in the side view (so as to close the upper space of the hook portion 305 in the side view). It is fast.

  In this rice cooker 100A, when the inner lid 500 is not attached to the lid unit 300, the locking control piece 331 is positioned so that the protruding portion 331a of the locking control piece 331 is positioned in front of the hook portion 305 by the coil spring 333. Is energized (see FIGS. 12 and 13). Then, even if the user attempts to close the lid unit 300 in this state, as shown in FIGS. 12 and 13, the protrusion 331a abuts on the lever member 207a of the lock lever mechanism 207, and the hook portion by the lever member 207a. Locking of 305 is completely prevented. Even if the user presses the lever member 207a downward and tries to close the lid unit 300, the positional relationship between the hook portion 305 and the protruding portion 331a, the protruding length of the protruding portion 331a, and the rotation of the lever member 207a. The hook portion 305 is never locked to the lever member 207a due to factors such as movement angle restriction.

  On the other hand, when the inner lid 500 is attached to the lid unit 300, the protrusion 505 of the inner lid 500 comes into contact with the inclined surface S of the slide lever portion 331 b of the locking control piece 331, and the locking control piece 331 becomes the coil spring 333. The projection 505 of the inner lid 500 is accommodated in the opening OP of the opening 331c. As a result, as shown in FIG. 11, the protruding portion 331a is retracted to a position that does not overlap the front surface and the upper surface of the hook portion 305 in a side view. When the user attempts to close the lid unit 300 in this state, the lever 207a is pressed downward after the hook portion 305 contacts the lever member 207a, and the lever member 207a is rotated by a certain angle. Then, when the upper surface of the hook portion 305 moves below the lever member 207a, the hook portion 305 is engaged with the lock lever mechanism 207, and the state shown in FIG.

(C)
In the rice cooker 100 according to the previous embodiment, the rotation type locking control mechanism 320 is adopted, but a shutter type locking control mechanism 340 as shown in FIGS. 14 to 16 may be adopted. In addition, since configurations other than the locking control mechanism 340 in the rice cooker 100B illustrated in FIGS. 14 to 16 are all the same as the rice cooker 100 according to the previous embodiment, the configuration other than the locking control mechanism 340 is first described. The same reference numerals as those used in the embodiment are attached to the above drawings, and the description thereof is omitted.

  As described above, the locking control mechanism 340 according to the present modification is a shutter-type locking control mechanism, and mainly includes a locking control piece 341, a shutter 342, and a coil spring as shown in FIGS. 343.

  The locking control piece 341 is an integrally molded product of resin, and mainly includes a protruding portion 341a and a guided portion 341b as shown in FIGS. As shown in FIGS. 14 to 16, the guided portion 341 b is joined to the rear of the protruding portion 341 a. The protruding portion 341a is a substantially quadrangular prism-shaped portion, and is disposed so as to be able to appear and disappear through an opening provided between the pair of hook portions 305. The guided portion 341b is fitted to a guide portion (not shown) provided in the lid unit 300 so as to be able to slide in the front-rear direction.

  The coil spring 343 urges the shutter 342 downward so that the shutter 342 exists behind the locking control piece 341.

  In the rice cooker 100B, when the inner lid 500 is not attached to the lid unit 300, the shutter 342 is disposed behind the locking control piece 341 by the coil spring 343 (see FIGS. 15 and 16). Even if the user attempts to close the lid unit 300 in this state, the rearward movement of the locking control piece 341 is restricted by the shutter 342 as shown in FIGS. 15 and 16, and the protruding portion 341a is hooked. The state of protruding to the front of 305 is maintained, and the locking of the hook portion 305 by the lever member 207a is completely prevented. Even if the user presses the lever member 207a downward and tries to close the lid unit 300, the positional relationship between the hook portion 305 and the protruding portion 341a, the protruding length of the protruding portion 341a, and the rotation of the lever member 207a. The hook portion 305 is never locked to the lever member 207a due to factors such as movement angle restriction.

  On the other hand, when the inner lid 500 is attached to the lid unit 300, the protrusion 505a of the inner lid 500 abuts on the lower surface of the shutter 342, and the shutter 342 is pushed upward against the urging force of the coil spring 343. An opening is formed behind the locking control piece 341. Then, when the user attempts to close the lid unit 300 in this state, the hook control unit 341 contacts the lever member 207a and retracts into the lid unit, and then the hook portion 305 contacts the lever member 207a. Thereafter, the hook portion 305 presses the lever member 207a downward to rotate the lever member 207a by a certain angle. Then, when the upper surface of the hook portion 305 moves below the lever member 207a, the hook portion 305 is locked by the lock lever mechanism 207, and the state shown in FIG.

(D)
In the previous embodiment, the present invention was applied to the rice cooker 100 with a lid heater, but the present invention can be applied to any type of rice cooker as long as the gist of the present invention is not impaired.

100 Rice cooker 200 Main unit (main unit)
207 Lock lever mechanism (locking mechanism)
300 Lid unit (lid)
305 Hook part (locked part)
320, 330, 340 Locking control mechanism 321a, 331a, 341a Protruding portion 500 Inner lid

Claims (3)

The body,
A lid attached to the main body so as to be openable and closable;
An inner lid detachably attached to the lower surface of the lid,
A locked portion fixedly provided on the lid,
A locking mechanism provided on the main body and locking the locked portion;
Has a protrusion, by the front and upper at least one projecting in the direction the locking mechanism of the engaged portion of the projecting portion in a side view when the inner cover is not mounted on the lid The first state in which the locked portion is prevented from being locked, and when the inner lid is attached to the lid , the protruding portion does not overlap the front surface and the upper surface of the locked portion in a side view. A rice cooker comprising a locking control mechanism that is retracted to a second state that allows the locking mechanism to be locked by the locking mechanism. The protruding portion is formed integrally with the contact portion,
The locking control mechanism is configured such that when the inner lid is attached to the lid body, the protruding portion retracts to the position as a result of a part of the inner lid coming into contact with the contact portion, and the second state. Become
The rice cooker according to claim 1. The rice cooker according to claim 1 or 2, wherein when the locking control mechanism is in the first state, the locking of the locked portion by the locking mechanism is prevented even if the locking mechanism is operated. vessel.

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