JP6112994B2 - rice cooker - Google Patents

Description

  The present invention relates to a rice cooker including a steam port unit that takes in steam in an inner pot generated during rice cooking, separates steam and rice cake, and discharges steam to the outside.

  Some conventional rice cookers have a steam port unit that is detachably attached to a lid. The steam port unit includes a case, a cover that fits into the case, a hinge portion that pivotally supports the cover and the case so as to be opened and closed, a lock mechanism that faces the hinge portion and locks the case and the cover, And a protrusion that is inserted into the communication hole of the lid in the vicinity of the lock mechanism (see, for example, Patent Document 1).

Japanese Patent No. 3363372 (Claims)

  In the rice cooker where the steam outlet unit as described above is attached to the inner lid, and the inner lid is detachably attached to the outer lid, when the rice is cooked without forgetting to lock the cover to the case. However, there is a problem that steam is blown out from the gap between the case and the cover, and the steam flows into the rice cooker to cause a failure or the user may touch the leaked steam.

  The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide a rice cooker in which an inner lid cannot be attached to an outer lid when the cover is forgotten to be fixed. To do.

In the rice cooker according to the present invention, the inner pot is detachably accommodated, a main body having a heating means for heating an object to be heated in the inner pot, an outer lid provided on the main body via the first hinge part, A rice cooker that is detachably attached to the outer lid and has an inner lid that closes the upper opening of the inner pot when the upper part of the main body is opened and closed with the outer lid. A case having an opening on the surface facing the lid, a recess having a steam port for discharging steam to the outside, a case attached to the inner lid and having an opening on the upper surface, and a case provided with a second hinge portion A steam opening unit that closes the opening of the case so as to be freely opened and closed, is accommodated in the recess when the inner lid is attached to the outer lid, and communicates the inside of the inner hook and the steam port; Protruding forward from the front facing the back on the hinge side, A hooked portion having a groove in the part, a shaft provided on the front surface facing the back surface on the second hinge portion side of the case, and a shaft, hooked on the groove portion of the hooked portion to fix the cover to the case, And a cover fixing means housed in the recess together with the steam port unit. When the cover is not fixed to the case, the cover fixing means is inclined forward with respect to the case about the axis, and contacts the edge of the recess to make steam The cover fixing means regulates the housing of the mouth unit in the recess, and the cover fixing means includes a bearing portion that receives the shaft, a finger hook portion that extends upward from the bearing portion, a stopper portion that extends obliquely downward from the bearing portion to the case side, and a finger hook portion. It is composed of a hook that extends to the front side of the case, and when the finger hook is pushed to the case, the hook hooks into the groove of the hooked part and the cover is fixed to the case. When pulling and removing the hook part from the groove part of the hooked part, the bearing is tilted around the shaft so that the finger hook part contacts the edge of the recess and the stopper part contacts the front surface of the case. As for the part, the part on the opposite side of the surface which opposes a case is notched.

  According to the present invention, when the cover is not fixed to the case, the cover fixing means is inclined forward with respect to the case about the shaft and contacts the edge of the recess to restrict the accommodation of the steam port unit in the recess. I am doing so. As a result, rice is not cooked in a state where the cover is forgotten to be fixed to the case. This prevents the main body from being damaged by the inflow of steam into the main body, so that the user can touch the steam. There is nothing wrong and safety is improved.

The perspective view which opens and shows a lid | cover in the rice cooker which concerns on Embodiment 1. FIG. The longitudinal cross-sectional view of the rice cooker shown in FIG. The longitudinal cross-sectional view which expands and shows a part of outer cover of FIG. 2, and an inner cover. The longitudinal cross-sectional view which expands and shows the state before attaching an inner cover to the outer cover of the rice cooker which concerns on Embodiment 1. FIG. The longitudinal cross-sectional view which shows the state which controlled attachment to the outer cover of the inner cover of FIG. The longitudinal cross-sectional view which shows a part of outer cover and inner cover of the rice cooker which concerns on Embodiment 2. FIG. The longitudinal cross-sectional view which expands and shows a part of recessed part and steam port unit of FIG. Sectional drawing which shows the state which the cover fixing means of FIG. 7 fixed the cover of the steam port unit.

Embodiment 1 FIG.
1 is a perspective view showing the rice cooker according to Embodiment 1 with the lid open, FIG. 2 is a longitudinal sectional view of the rice cooker shown in FIG. 1, and FIG. 3 is an enlarged view of a part of the outer lid and the inner lid of FIG. It is a longitudinal cross-sectional view shown.

  1 to 3, the rice cooker 100 according to the first embodiment includes an inner pot 2 that holds an object to be heated, such as rice, so that the inner pot 2 can be taken out and heated to induction heat the inner pot 2. A box-shaped main body 1 having a coil 6 (heating means), an outer lid 3 provided on the main body 1 via a first hinge portion 5, and a removably attached to the outer lid 3. An inner lid 4 that closes the upper opening of the inner hook 2 when the upper part of 1 is closed in an openable / closable manner is provided. The aforementioned heating coils 6 are each formed in an annular shape, and are arranged at the bottom where the inner hook 2 is accommodated. A temperature sensor 7 for detecting the temperature of the inner pot 2 heated by induction by the heating coil 6 is installed at the center of the bottom.

  A recess 3 a having an opening on the surface facing the inner lid 4 is provided inside the outer lid 3. The recess 3 a has a space for accommodating a steam port unit 11 described later and a cover fixing means 31 attached to the steam port unit 11. A steam port 19 for discharging steam to the outside is provided at the top of the recess 3a. A steam port unit 11 is installed on the back surface of the inner lid 4. The steam port unit 11 is attached to the back surface of the inner lid 4, and includes a case 12 having an opening in the upper portion and a cover 13 that is provided in the case 12 via a second hinge portion 21 and closes the opening of the case 12 so as to be opened and closed. It consists of and. The steam port unit 11 mounted on the back surface of the inner lid 4 is accommodated in the recess 3 a when the inner lid 4 is attached to the outer lid 3, and communicates the inner hook 2 and the steam port 19.

  The cover 13 is provided with a hooked portion 13a having a groove portion 13b with an upper opening on the front surface facing the back surface on the second hinge portion 21 side. The hooked portion 13 a extends in the lateral direction (lateral width) of the cover 13 and is formed integrally with the cover 13. Further, a barrier 18 is provided on the inner surface of the cover 13 so as to hang downward substantially at a right angle to the direction of steam flow. Further, a connecting portion 23 connected to the steam port 19 is detachably attached to an upper portion between the barrier 18 and the back surface of the cover 13. The connecting portion 23 is made of, for example, silicon rubber having heat resistance.

  At the bottom of the case 12, for example, a cylindrical steam introducing cylinder 15 and an on-off valve 16 adjacent to the steam introducing cylinder 15 are provided. A lower end portion of the steam introducing cylinder 15 is connected to a hole provided in the inner lid 4 as a steam inlet 14. The on-off valve 16 is made of, for example, heat-resistant silicone rubber, and moves up and down according to the steam pressure in the inner pot 2 generated during rice cooking. When the on-off valve 16 is lowered by its own weight, a communication port (not shown) provided around the on-off valve 16 is opened.

  The bottom of the case 12 is inclined downward toward the on-off valve 16. Due to the inclination of the bottom portion, a reservoir portion 20 is formed in which a rice ball separated from the steam flows around the on-off valve 16 and accumulates. Two barriers 17 extending upward are provided at the bottom of the case 12. The two barriers 17 are disposed so as to sandwich the above-described barrier 18, and the barrier 17 on the on-off valve 16 side of the two barriers 17 is provided with a hole 17 a for letting the rice cake flow into the reservoir 20. When the opening of the case 12 is closed by the cover 13 and the cover 13 is fixed by a cover fixing means 31 described later, the inside of the case 12 is hermetically sealed by the annular packing 22 provided on the cover 13.

  The inner pot 2 containing the cooked rice (object to be heated) is accommodated in the main body 1, the outer lid 3 is brought down together with the inner lid 4 to which the steam port unit 11 is attached, the upper portion of the main body 1 is closed, and rice cooking is started. Then, the inner hook 2 is induction-heated by the heating coil 6. When steam is generated from the cooked rice in the inner pot 2 by this induction heating, the steam flows in from the steam inlet 14, enters the steam inlet unit 11 through the steam inlet cylinder 15, and goes to the connecting portion 23 side. It flows. At this time, the steam hits the barriers 17 and 18, and the rice contained in the steam is separated, and the steam having a low content of the rice is discharged from the steam port 19 through the connecting portion 23. On the other hand, the on-off valve 16 is pushed upward by the vapor pressure in the inner pot 2 to close the communication port around the on-off valve 16. When the induction heating is stopped and the pressure in the inner pot 2 is reduced, the on-off valve 16 is lowered by its own weight and the weight of the tongue, and the communication port is opened and the pocket accumulated in the reservoir portion 20 returns to the inner pot 2.

  The above-described cover fixing means 31 is attached to a shaft 32 disposed on the front side of the front surface 12a of the case 12. The shaft 32 is supported by two support plates 33 provided to project forward from both ends of the front surface 12 a of the case 12. The cover fixing means 31 has a lateral width substantially the same as the length of the groove portion 13b of the hooked portion 13a, a bearing portion 31a fitted to the shaft 32, a plate-shaped finger hooking portion 31b extending upward from the bearing portion 31a, The plate-shaped stopper portion 31c extends obliquely downward from the bearing portion 31a to the case 12 side, and the plate-shaped hook portion 31d extends from the finger-hanging portion 31b to the front surface 12a side of the case 12. The bearing 31a has a notch 31e on the opposite side of the surface facing the case 12. Due to the notch 31e, a part of the outer peripheral surface of the shaft 32 appears to be exposed.

  When the hook 31d is at a position completely detached from the hooked portion 13a, the finger hook 31b contacts the edge 3b of the recess 3a. Further, the cover fixing means 31 operates in the opening direction, and the operation in the opening direction stops when the stopper portion 31c of the cover fixing means 31 contacts the front surface 12a of the case 12.

  After the opening of the case 12 is closed by the cover 13, when the finger hooking portion 31 b of the cover fixing means 31 is pushed to the case 12 side with a finger, the tip of the hooking portion 31 d enters the groove 13 b of the hooked portion 13 a of the cover 13. The cover 13 is fixed so that the cover 13 is pressed into the case 12.

FIG. 4 is an enlarged vertical sectional view showing a state before the inner lid is attached to the outer lid of the rice cooker according to the first embodiment, and FIG. 5 shows a state where the attachment of the inner lid of FIG. 4 to the outer lid is restricted. It is a longitudinal cross-sectional view shown.
As described above, when the cover 13 is fixed to the case 12 by the cover fixing means 31, when the inner lid 4 is attached to the outer lid 3, as shown in FIG. Together with the means 31, it is accommodated in the recess 3a of the outer lid 3.

  On the other hand, when the cover 13 is not fixed by the cover fixing means 31, that is, when the cover 13 is forgotten to be fixed and the inner lid 4 is to be attached to the outer lid 3, as shown in FIG. Therefore, the end portion of the finger hook portion 31b contacts the edge portion 3b of the recess 3a, and the stopper portion 31c contacts the front surface 12a of the case 12 accordingly. At this time, the rotation of the cover fixing means 31 is prevented and the attachment of the inner lid 4 to the outer lid 3 is restricted.

  As described above, when the cover 13 is forgotten to be fixed and the inner lid 4 is to be attached to the outer lid 3, the end portion of the finger hook portion 31 b comes into contact with the edge portion 3 b of the concave portion 3 a, and the stopper portion 31 c serves as the case 12. The cover fixing means 31 is prevented from rotating and the attachment of the inner lid 4 to the outer lid 3 is restricted. As a result, rice cooking is not performed in a state where the fixing of the cover 13 to the case 12 is forgotten, so that the malfunction of the main body 1 due to the inflow of steam into the main body 1 can be prevented. There will be no contact with steam, improving safety.

  Further, since the bearing 31a of the cover fixing means 31 has a notch 31e on the opposite side of the surface facing the case 12, when the cover fixing means 31 is assembled to the shaft 32, the notch 31e of the bearing 31a. This part can be fitted into the shaft 32, and the assembling work becomes easy. In addition, the end of the finger hook portion 31b is in contact with the edge portion 3b of the recess 3a, the stopper portion 31c is in contact with the front surface 12a of the case 12, and the attachment of the inner lid 4 to the outer lid 3 is restricted. Even if it becomes, the cover fixing means 31 does not come off from the shaft 32.

Embodiment 2. FIG.
6 is a longitudinal sectional view showing a part of the outer lid and the inner lid of the rice cooker according to the second embodiment, and FIG. 7 is a longitudinal sectional view showing a part of the recess and the steam port unit in FIG. 8 is a cross-sectional view showing a state where the cover fixing means of FIG. 7 fixes the cover of the steam port unit. In addition, the same code | symbol is attached | subjected to the part similar to Embodiment 1 demonstrated in FIGS.

  In the rice cooker 100 according to the second embodiment, among the side surfaces of the recess 3a provided in the outer lid 3, the inclined portion 13c is inclined obliquely toward the lower end portion on the inner surface of the side surface facing the cover fixing means 31. Is provided. The inclined portion 13c is configured so that the finger hook portion 31b of the cover fixing means 31 faces the cover 13 when the tip end portion of the hook portion 31d of the cover fixing means 31 is halfway before being hooked on the groove portion 13b of the hooked portion 13a. It is provided for guidance.

  For example, as shown in FIG. 7, the inner lid 4 is inclined with respect to the outer lid 3 when the tip of the hooking portion 31 d of the cover fixing means 31 is halfway before being hooked on the groove 13 b of the hooked portion 13 a. Then, when the steam port unit 11 is put into the recess 3a, the finger hook portion 31b of the cover fixing means 31 is guided to the cover 13 side by the inclined portion 13c. With the guidance of the finger hook portion 31b, the hook portion 31d moves to the hooked portion 13a side, and as shown in FIG. 8, the tip portion of the hook portion 31d enters the groove portion 13b of the hooked portion 13a and is hooked. 13 is fixed to the case 12.

  In this way, even when the tip of the hook portion 31d of the cover fixing means 31 is halfway before being hooked on the groove portion 13b of the hooked portion 13a, the finger hook portion 31b of the cover fixing means 31 is moved by the inclined portion 13c. Guided to the cover 13 side, the tip of the hook portion 31d enters the groove 13b of the hooked portion 13a and is hooked. For this reason, the leak of the vapor | steam in the halfway closed state of the cover 13 can be prevented, and safety improves.

  DESCRIPTION OF SYMBOLS 1 Main body, 2 Inner hook, 3 Outer lid, 3a Recessed part, 3b Edge part, 4 Inner lid, 5 1st hinge part, 6 Heating coil, 7 Temperature sensor, 11 Steam port unit, 12 Case, 12a Front of case, 13 Cover, 13a Hook part, 13b Groove part, 13c Inclined part, 14 Steam inlet, 15 Steam inlet cylinder, 16 On-off valve, 17, 18 Barrier, 17a Hole, 19 Steam port, 20 Reservoir part, 21 Second hinge part, 22 packing, 23 connecting part, 31 cover fixing means, 31a bearing part, 31b finger hook part, 31c stopper part, 31d hook part, 31e notch, 32 axis | shaft, 33 support plate, 100 rice cooker.

Claims (2)

A main body having a heating means for heating an object to be heated in the inner hook, a outer lid provided on the main body via a first hinge portion, and a removable to the outer lid In the rice cooker having an inner lid that closes the upper opening of the inner pot when the upper portion of the main body is opened and closed freely with the outer lid.
A recess provided on the inner side of the outer lid, having an opening on a surface facing the inner lid, and further having a steam port for discharging steam to the outside;
A case attached to the inner lid and having an opening on the upper surface, and a cover provided on the case via a second hinge portion, which closes the opening of the case so as to be freely opened and closed, and the inner lid is attached to the outer lid A steam port unit that is accommodated in the recess when attached, and that communicates the inside of the inner pot and the steam port;
A hooked portion provided to protrude forward from the front surface facing the back surface of the cover on the second hinge portion side, and having a groove on the top;
A shaft provided on the front surface of the case facing the back surface on the second hinge portion side;
A cover fixing means provided on the shaft, hooked on a groove of the hooked portion to fix the cover to the case, and housed in the recess together with the steam port unit;
When the cover is not fixed to the case, the cover fixing means is inclined forward with respect to the case with the shaft as a center, and contacts the edge of the recess to accommodate the steam port unit in the recess. Regulate ,
The cover fixing means includes a bearing portion that receives the shaft, a finger hook portion that extends upward from the bearing portion, a stopper portion that extends obliquely downward from the bearing portion to the case side, and from the finger hook portion to the front side of the case. When the finger hook is pushed toward the case, the hook hooks into the groove of the hooked portion to fix the cover to the case, and pulls the finger hook toward the front. When the hook portion is removed from the groove portion of the hooked portion, the finger hook portion comes into contact with the edge portion of the concave portion with the shaft as a center, and the stopper portion comes into contact with the front surface of the case. Tilted like
In the rice cooker, a portion of the bearing portion opposite to a surface facing the case is cut out . On the side surface of the recess facing the cover fixing means, when the cover fixing means is housed in the recess together with the steam port unit, the finger hook portion is guided to the cover side so that the hook portion is covered with the cover portion. cooker according to claim 1, wherein the inclined portion that makes hooking into the groove of the hook portion is characterized by being provided.

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