JP6807786B2 - rice cooker - Google Patents

Description

The present invention relates to a rice cooker that cooks an object to be heated such as rice.

The rice cooker includes a main body having an inner pot storage portion with an open upper surface, an inner pot detachably attached to the inner pot storage portion, and a lid that covers the upper surface opening of the main body so as to be openable and closable. There is. The lid has a steam port formed on the upper surface for discharging steam generated in the inner pot to the outside, and a steam discharge portion for communicating the steam port and the inside of the inner pot is provided.

For example, Patent Document 1 discloses a rice cooker provided with a steam hole set as a steam discharge unit. The steam hole set is housed inside the bowl-shaped Neba supplement case, the valve chamber member provided on the inner circumference of the boss portion provided on the upper surface of the Neba supplement case, and the evaporation port. It is composed of a spherical moisturizing valve body located directly below.

Japanese Patent No. 3617822

In the rice cooker disclosed in Patent Document 1, a sufficient space is not provided between the moisturizing valve body and the steam port. Therefore, in this rice cooker, when the steam generated in the inner pot during rice cooking passes through the rice cooker supplementary case, if the internal pressure increases inside the rice cooker supplementary case, water droplets accumulated inside the rice cooker supplementary case. May spurt out toward the upper surface of the lid vigorously, and the upper surface of the lid may become dirty.

The present invention has been made to solve the above-mentioned problems, and when the steam generated in the inner pot during rice cooking passes through the steam discharge part, water droplets in the steam discharge part are applied to the upper surface of the lid. The purpose is to provide a rice cooker that can prevent the situation of splattering toward the rice cooker.

The rice cooker according to the present invention has a main body having an inner pot storage portion with an open upper surface, an inner pot detachably attached to the inner pot storage portion, and a lid that covers the upper surface opening of the main body so as to be openable and closable. The lid body is provided with a body, and a steam port for discharging steam in the inner pot to the outside is formed on the outer surface, and a steam discharge portion having a hollow structure communicating the steam port and the inside of the inner pot. Is provided, and the steam discharge unit is provided with a moisturizing valve body that opens and closes in response to an increase in steam pressure, and water droplets accumulated inside are discharged to the outside between the moisturizing valve body and the steam port. A tubular first steam discharge member that forms a first space portion that suppresses this, and a tubular second steam discharge member that forms a second space portion between the moisturizing valve body and the inner pot. The moisturizing valve body is rotatably supported by a support portion sandwiched between the first steam discharge member and the second steam discharge member and the support portion to increase the steam pressure. It has a valve body portion that opens and closes accordingly, and the opening surface of the second steam discharge member is closed by the valve body portion .

According to the rice cooker according to the present invention, a moisturizing valve body that opens and closes in response to an increase in steam pressure is provided in the steam discharge portion, and a first space portion is formed between the moisturizing valve body and the steam port. When the steam generated in the inner pot during rice cooking passes through the steam discharge portion and is discharged from the steam port, the momentum of the steam can be weakened in the first space portion. Therefore, the rice cooker according to the present invention can prevent a situation in which water droplets in the steam discharge portion are vigorously scattered toward the upper surface of the lid.

It is a perspective view which looked at the rice cooker which concerns on Embodiment 1 of this invention from the front side. FIG. 5 is a vertical cross-sectional view showing an internal structure of a rice cooker according to a first embodiment of the present invention in a state where the lid is closed. FIG. 5 is a vertical cross-sectional view showing an internal structure of a rice cooker according to a first embodiment of the present invention in a state where the lid is open. It is a perspective view which showed by disassembling the lid body of the rice cooker which concerns on Embodiment 1 of this invention. It is an enlarged view of part A shown in FIG. It is a perspective view which showed the steam discharge part of the rice cooker which concerns on Embodiment 1 of this invention by disassembling. It is an enlarged view of part B shown in FIG. It is a perspective view which showed the 2nd steam discharge member of the rice cooker which concerns on Embodiment 1 of this invention. It is a top view which showed the moisturizing valve body of the rice cooker which concerns on Embodiment 1 of this invention. FIG. 9 is a cross-sectional view taken along the line CC shown in FIG. FIG. 5 is an enlarged cross-sectional view of a main part of the rice cooker according to the first embodiment of the present invention, showing a state in which water droplets escape and flow from a groove portion to a second space portion. FIG. 5 is an enlarged cross-sectional view of a main part of the rice cooker according to the first embodiment of the present invention, showing a state in which the valve body portion is rolled up toward the second space portion. FIG. 5 is an enlarged cross-sectional view of a main part of the rice cooker according to the first embodiment of the present invention, showing different forms of the valve body. FIG. 5 is an enlarged cross-sectional view of a main part of the rice cooker according to the first embodiment of the present invention, showing a state in which the valve body portion is turned toward the first space portion. It is a top view which showed the 1st inner lid of the rice cooker which concerns on Embodiment 1 of this invention. It is a perspective view which looked at the inner lid of the rice cooker which concerns on Embodiment 1 of this invention from the 2nd inner lid side. It is an enlarged sectional view of the main part of the rice cooker which concerns on Embodiment 2 of this invention. It is a perspective view which showed the moisturizing valve body of the rice cooker which concerns on Embodiment 2 of this invention.

Hereinafter, the rice cooker according to the embodiment of the present invention will be described with reference to the drawings. The present invention is not limited to the form of this drawing. Further, in the drawings below, the relationship between the sizes of the constituent members may differ from the actual one.

Embodiment 1.
FIG. 1 is a perspective view of the rice cooker according to the first embodiment of the present invention as viewed from the front side. FIG. 2 is a vertical cross-sectional view showing the internal structure of the rice cooker according to the first embodiment of the present invention in a state where the lid is closed. FIG. 3 is a vertical cross-sectional view showing the internal structure of the rice cooker according to the first embodiment of the present invention in a state where the lid is open. FIG. 4 is a perspective view showing the lid of the rice cooker according to the first embodiment of the present invention in an exploded manner. The rice cooker 100 according to the first embodiment shown in FIGS. 1 to 4 is a household rice cooker that heats and cooks an object to be heated (for example, rice and water). As shown in FIGS. 1 to 3, the rice cooker 100 includes a main body portion 1 having an inner pot storage portion 10 having an open upper surface inside, an inner pot 5 detachably attached to the inner pot storage portion 10, and an inner pot 5. It is provided with a lid 2 which is rotatably connected to the main body 1 by a hinge mechanism 11 and covers the upper surface opening of the main body 1 so as to be openable and closable.

As shown in FIGS. 2 and 3, the main body 1 has a bottomed tubular shape, and has an inner pot storage portion 10 for detachably mounting the inner pot 5 inside and heating for inducing heating the inner pot 5. It has a coil 13, a pot bottom temperature sensor 14 for detecting the temperature of the inner pot 5, and a body heater 15 for heating the body of the inner pot 5. The main body 1 executes a rice cooking process by driving and controlling each unit and each device by a built-in control unit (not shown).

A lid opening / closing button 12 for opening / closing the lid 2 is provided on the front surface side of the main body 1. By pressing the lid open / close button 12, the user can release the closed state of the lid 2 and open the main body 1.

As shown in FIGS. 2 and 3, the inner pot 5 has a bottomed cylindrical shape and is composed of a carbon material that generates heat by induction heating. The inner pot 5 may be, for example, a container made of a non-metal material such as ceramic (so-called clay pot) or a metal casting container such as aluminum. Rice and water, which are objects to be heated, are stored inside the inner pot 5. The inner pot 5 is provided with a flange portion 5a that projects outward along the opening edge over the entire circumference.

An operation display unit 16 is arranged on the upper surface portion of the lid body 2. The operation display unit 16 receives the operation input from the user and displays the information on the operation input and the operating state of the rice cooker 100. The specific configuration and arrangement of the operation display unit 16 shown in FIG. 1 is an example, and does not limit the present invention. For example, the operation display unit 16 may be provided on the front surface of the main body unit 1.

The control unit controls the overall operation of the rice cooker 100, such as controlling the high-frequency current that energizes the heating unit, based on the outputs from the pot bottom temperature sensor 14 and the operation display unit 16. The control unit can be configured by hardware such as a circuit device that realizes the function, or can be configured by an arithmetic unit such as a microcomputer or a CPU and software executed on the arithmetic unit. The control unit is mounted on the control board and fixed to the inner pot storage unit 10.

The lid 2 covers the upper surface opening of the main body 1 so as to be openable and closable. As shown in FIGS. 2 and 3, the lid 2 is detachably attached to the outer lid 3 constituting the upper portion of the lid 2 and the outer lid 3, and the lid 2 closes the upper surface opening of the main body 1. At that time, it has an inner lid 4 that closes the upper opening of the inner pot 5. The inner lid 4 is attached to the lower part of the outer lid 3, which is a portion facing the inner pot 5, via the inner lid locking portion 31b.

In the lid body 2, one end of the outer lid 3 is connected to the upper part of the main body 1 by a hinge mechanism 11. The hinge mechanism portion 11 has a hinge shaft 11a and a hinge spring 11b. The lid 2 is urged by a hinge spring 11b in a direction away from the main body 1 to open the opening of the main body 1. Then, when the lid open / close button 12 is pressed in the closed state, the lid 2 rotates about the hinge shaft 11a due to the urging force of the hinge spring 11b and separates from the main body 1. As a result, the opening of the main body 1 is opened.

As shown in FIGS. 2 and 3, a lid heater plate 17 and a lid heater 18 attached to the upper surface of the lid heater plate 17 are provided between the outer lid 3 and the inner lid 4 as heating means. Has been done. The lid heater 18 is energized and controlled by a control unit, and particularly heats an object to be heated stored inside the inner pot 5 from above when keeping warm. The lid heater plate 17 comes into contact with the inner lid 4 when the lid 2 is closed, and the contact with the inner lid 4 is released when the lid 2 is opened.

The outer lid 3 is composed of an upper lid 30 that forms the outer surface of the lid body 2 and a lower lid 31 that is arranged on the upper surface opening side of the main body 1 with respect to the upper lid 30. The operation display unit 16 provided on the upper surface of the lid 2 is provided on the upper lid 30.

The upper lid 30 has a concave shape in which the upper surface opening side of the main body 1 is recessed, and the lower lid 31 is arranged inside the recess. The upper lid 30 is formed with a steam port 20 on the back side of the main body 1 for discharging steam generated in the inner pot 5 to the outside during rice cooking.

As shown in FIG. 4, the lower lid 31 is formed with an opening 31a at the same position as the steam port 20 formed in the upper lid 30 so as to communicate the steam port 20 with the inside of the inner pot 5. A hollow steam discharge portion 6 that communicates the steam port 20 with the inside of the inner pot 5 is fitted in the opening portion 31a. The steam discharge portion 6 is provided with a protrusion 6a having a screw hole on the outer surface, and a screw member 6b screwed into the screw hole of the protrusion 6a is inserted into a screw hole 6c formed on the upper surface of the lower lid 31. It is screwed in and fixed to the lower lid 31. Further, as shown in FIGS. 2 and 3, the lower lid 31 is provided with an inner lid locking portion 31b for detachably attaching the inner lid 4. Further, the lower lid 31 is connected to the main body 1 by the hinge mechanism 11.

Next, the configuration of the steam discharge portion of the rice cooker according to the first embodiment of the present invention will be described in detail with reference to FIGS. 5 to 14. FIG. 5 is an enlarged view of part A shown in FIG. FIG. 6 is a perspective view showing the steam discharge portion of the rice cooker according to the first embodiment of the present invention in an exploded manner. FIG. 7 is an enlarged view of part B shown in FIG. FIG. 8 is a perspective view showing a second steam discharge member of the rice cooker according to the first embodiment of the present invention. FIG. 9 is a plan view showing a moisturizing valve body of the rice cooker according to the first embodiment of the present invention. FIG. 10 is a cross-sectional view taken along the line BB shown in FIG. FIG. 11 is an enlarged cross-sectional view of a main part of the rice cooker according to the first embodiment of the present invention, showing how water droplets escape and flow from the groove portion to the second space portion. FIG. 12 is an enlarged cross-sectional view of a main part of the rice cooker according to the first embodiment of the present invention, showing a state in which the valve body portion is turned toward the second space portion.

As shown in FIGS. 5 and 6, the steam discharge unit 6 includes a tubular first steam discharge member 7 and a tubular second steam discharge member 8. The steam discharge unit 6 is provided with a moisturizing valve body 9 which is arranged between the first steam discharge member 7 and the second steam discharge member 8 and opens and closes the hollow inside in response to an increase in vapor pressure.

As shown in FIGS. 5 and 6, the first steam discharge member 7 forms a first space portion 60 between the moisturizing valve body 9 and the steam port 20. The first steam discharge member 7 is configured to be narrowed in the radial direction toward the steam port 20. The first steam discharge member 7 is provided with a top surface portion 7a having an opening surface facing the steam port 20 smaller than the inner diameter of the first space portion 60, and is hollow so as to protrude from the top surface portion 7a toward the steam port 20. An insertion portion 7b of the structure is provided. The insertion portion 7b has an outer diameter substantially the same as the diameter of the steam port 20, and is inserted into the steam port 20. That is, by providing the top surface portion 7a on the first steam discharge member 7, the steam generated in the inner pot 5 during rice cooking passes through the steam discharge portion 6 and is discharged from the steam port 20. The water droplets in the steam discharge portion 6 scattered in the above can collide with the top surface portion 7a, and the situation in which the water droplets are vigorously scattered toward the upper surface of the lid 2 can be prevented.

As shown in FIG. 5, a protrusion 7e surrounding the insertion portion 7b is provided on the upper surface of the top surface portion 7a. The protrusion 7e is fitted with a packing 30a and is in contact with the outer lid 3 and the like in order to prevent steam from entering the inside of the lid 2 from the steam port 20.

As shown in FIG. 5, ribs 7c protruding toward the first space portion 60 are formed on the lower surface of the top surface portion 7a. As shown in FIGS. 3 and 7, the rib 7c blocks water droplets accumulated inside the hollow of the steam discharge portion 6 in front of the steam port 20 when the lid 2 is opened. The rib 7c is not limited to the configuration provided on the lower surface of the top surface portion 7a. Although not shown in detail, the configuration may be provided on the inner surface of the first steam discharge member 7. In short, the rib 7c may have another configuration as long as it can block the water droplets accumulated in the hollow inside of the steam discharge portion 6 in front of the steam port 20 when the lid 2 is opened.

Further, as shown in FIGS. 5 and 6, the first steam discharge member 7 is sandwiched by the end face on the side facing the second steam discharge member 8 so as to spread outward and sandwich the moisturizing valve body 9. Part 7d is provided.

The second steam discharge member 8 forms a second space portion 61 between the moisturizing valve body 9 and the inner lid 4. As shown in FIGS. 6 and 8, the second steam discharge member 8 has a diameter of the opening surface 80 smaller than the inner diameter of the second space 61 along the opening edge of the opening surface 80 facing the moisturizing valve body 9. A top surface portion 8a is provided.

As shown in FIG. 5, in the second steam discharge member 8, the top surface portion 8a, which is the end surface of the moisturizing valve body 9 side, is inclined toward the inner side of the main body portion 1 from the back surface side to the front surface side of the main body portion 1. doing. Further, a positioning projection 8b protruding toward the moisturizing valve body 9 is provided on the upper surface of the top surface portion 8a of the second steam discharge member 8.

Further, as shown in FIGS. 6 and 8, the top surface portion 8a of the second steam discharge member 8 is formed with a relief groove portion 8c that forms a gap between the second steam discharge member 8 and the moisturizing valve body 9. When the moisturizing valve body 9 is strongly adhered to the upper surface of the second steam discharge member 8 and the inside of the main body 1 is sealed, the lid 2 may not be opened. Therefore, a relief groove portion 8c is formed on the top surface portion 8a of the second steam discharge member 8 to guide air from the outside to the inside of the main body portion 1 to prevent a situation in which the lid 2 cannot be opened. .. In the illustrated embodiment 1, the relief groove portion 8c is formed at a position adjacent to the support portion 91 of the moisturizing valve body 9 described later, but may be provided at another position.

As shown in FIGS. 9 and 10, the moisturizing valve body 9 includes an annular seal portion 92, a support portion 91 formed on the inner surface of the seal portion 92, and a valve body rotatably supported by the support portion 91. It has a part 90 and. The moisturizing valve body 9 is formed of an elastic body such as a silicone resin. The moisturizing valve body 9 prevents steam generated in the inner pot 5 during heat retention from being discharged to the outside of the main body 1 more than necessary through the steam discharge unit 6, and moisturizes rice or the like to be heated. It is provided to keep it.

As shown in FIG. 5, the seal portion 92 seals one end surface of the first steam discharge member 7 and one end surface of the second steam discharge member 8 facing the one end surface. As shown in FIGS. 5 and 10, a protrusion 92a protruding toward the first steam discharge member 7 is provided on the upper surface of the seal portion 92 along the circumferential direction. The upper surface of the seal portion 92 has a protrusion 92a fitted into a groove formed in the first steam discharge member 7 and is in close contact with the sandwiching portion 7d of the first steam discharge member 7. Further, on the lower surface of the seal portion 92, a protrusion 92b protruding toward the second steam discharge member 8 is provided along the circumferential direction. The lower surface of the seal portion 92 has a protrusion 92b fitted into a groove formed in the top surface portion 8a of the second steam discharge member 8 and is in close contact with the top surface portion 8a of the second steam discharge member 8.

As shown in FIG. 5, the support portion 91 is sandwiched between the sandwiching portion 7d of the first steam discharge member 7 and the top surface portion 8a of the second steam discharge member 8 so as to be located on the front surface side of the main body portion 1. There is. When the moisturizing valve body 9 is arranged so that the support portion 91 is located on the back surface side of the main body portion 1, when the lid body 2 is opened, the valve body portion 90 tilts to the left and right due to the action of gravity, and after long-term use. This is because there is a risk that the valve body portion 90 will be twisted and will not function. However, the moisturizing valve body 9 may have a configuration in which the support portion 91 is arranged other than the front side of the main body portion 1 as long as the material or shape of the valve body portion 90 does not twist even after long-term use.

As shown in FIG. 10, the support portion 91 is formed with a positioning groove portion 91a having an opening downward. As shown in FIG. 5, the support portion 91 fits the positioning groove portion 91a into the positioning protrusion 8b provided on the end surface of the second steam discharge member 8, and in a positioned state, the first steam discharge member 7 and the second steam discharge member 7 and the second steam discharge. It is sandwiched between the member 8 and the member 8.

In the normal state, the valve body portion 90 closes the opening surface 80 of the second steam discharge member 8 to close the steam discharge portion 6, and as shown in FIG. 5, the support portion increases when the vapor pressure in the inner pot 5 increases. With 91 as a fulcrum, it floats toward the first space portion 60, and the steam discharge portion 6 is opened. Therefore, the valve body portion 90 is formed to be thin enough to allow smooth operation.

As shown in FIGS. 5 and 11, the valve body portion 90 is inclined toward the inner side of the main body portion 1 from the back surface side to the front surface side of the main body portion 1. Specifically, the valve body portion 90 is supported by the top surface portion 8a of the second steam discharge member 8 and is inclined toward the inside of the main body portion 1. This is because, as shown in FIG. 11, the water droplets generated in the first space portion 60 are guided to the support portion 91 side, and the water droplets are released and flowed to the second space portion 61 through the groove portion 8c. When the lid 2 is closed from the open state, the air inside the main body 1 escapes to the outside through the steam discharge unit 6. In particular, when the lid 2 is closed strongly, water droplets in the first space 60 may be vigorously scattered from the steam port 20. Therefore, by preliminarily flowing the water droplets in the first space portion 60 to the second space portion 61, the situation where the water droplets are vigorously scattered from the steam port 20 is prevented. However, the valve body 90 may have a substantially horizontal shape without being tilted.

Further, as shown in FIG. 9, the valve body portion 90 has a shape similar to the opening surface 80 of the second steam discharge member 8. The steam discharge portion 6 is assembled to the opening 31a of the lower lid 31 and cannot normally be removed. The only way to clean the inside of the steam discharge unit 6 is to open the lid 2 and remove the inner lid 4. Since the rice cooker 100 has a configuration in which the valve body 90 has a shape similar to the opening surface 80 of the second steam discharge member 8, as shown in FIG. 12, the work of winding the valve body 90 toward the second space 61 side. Becomes easier. Therefore, the rice cooker 100 can easily clean the inside of the first space portion 60 and the surface of the valve body portion 90. It is preferable that the valve body portion 90 has a size slightly larger than the opening surface 80 of the second steam discharge member 8 so that it can be easily rolled toward the second space portion 61 side. However, the shape and size of the valve body portion 90 are not limited to this.

Note that FIG. 13 is an enlarged cross-sectional view of a main part of the rice cooker according to the first embodiment of the present invention, showing different forms of the valve body. As shown in FIG. 13, the valve body portion 90 may be provided with a protrusion 90a protruding toward the second space portion 61. When the user pulls the protrusion 90a toward the second space 61, the valve body 90 can be easily turned toward the second space 61.

Further, FIG. 14 is an enlarged cross-sectional view of a main part of the rice cooker according to the first embodiment of the present invention, showing a state in which the valve body portion is turned toward the first space portion. As shown in FIG. 14, the inside of the first space portion 60 can be cleaned while the valve body portion 90 is pushed toward the first space portion 60. In this case, the other surface of the valve body 90 can also be cleaned.

Although the moisturizing valve body 9 has a structure in which the seal portion 92, the support portion 91, and the valve body portion 90 are integrated, the seal portion 92 may be a separate body. That is, the moisturizing valve body 9 is composed of a support portion 91 and a valve body portion 90.

Next, the configuration of the inner lid of the rice cooker according to the first embodiment of the present invention will be described in detail with reference to FIGS. 15 and 16. FIG. 15 is a plan view showing the first inner lid of the rice cooker according to the first embodiment of the present invention. FIG. 16 is a perspective view of the inner lid of the rice cooker according to the first embodiment of the present invention as viewed from the second inner lid side. The inner lid 4 is made of, for example, a metal such as stainless steel, and as shown in FIGS. It is detachably attached to the lid 31.

The inner lid 4 includes a first inner lid 40 that is detachably attached to the lower surface of the lower lid 31, and a second inner lid 41 that is detachably attached to the first inner lid 40 on the upper surface opening side of the main body 1. Have. A space is formed between the lower surface of the first inner lid 40 and the upper surface of the second inner lid 41. The second inner lid 41 functions to receive water droplets generated by cooking rice.

The lower surface of the first inner lid 40 is substantially flat. As shown in FIG. 15, the first inner lid 40 is formed with a steam discharge hole 40a for discharging the steam separated from the mustard in the space portion to the steam discharge portion 6. Two steam discharge holes 40a are formed in parallel at positions facing the support portion 91 of the moisturizing valve body 9. By forming the steam discharge hole 40a at a position facing the support portion 91 of the moisturizing valve body 9, the steam that has entered the second space portion 61 is diverted so as to collide with the support portion 91, and then the second steam is discharged. It flows to the opening surface 80 of the member 8. As a result, the momentum of the steam can be weakened by the support portion 91, and the spillage of water droplets can be suppressed.

As shown in FIG. 16, the second inner lid 41 is formed with a recessed portion 41a whose central portion protrudes toward the upper surface opening side of the main body portion 1. In the second inner lid 41, the volume of the space portion is increased by the recessed portion 41a, and the tongue introduced into the space portion can be sufficiently stored. At the center of the recessed portion 41a, there is provided a shaving return hole 41b for returning the shavings separated from steam in the space to the inner pot 5. The return hole 41b is provided with an on-off valve 41c that moves up and down depending on the pressure inside the inner hook 5.

Further, in the second inner lid 41, a plurality of steam introduction holes 41d for introducing the steam in the inner pot 5 into the space portion are formed in the recess portion 41a. The steam introduction hole 41d introduces the steam including the steam generated in the inner pot 5 by the heating means into the space. The steam introduction hole 41d is formed so as to surround the return hole 41b. The steam introduction hole 41d of the second inner lid 41 is formed at a position where the region where the steam introduction hole 41d is projected upward and the steam discharge hole 40a formed in the first inner lid 40 do not overlap. As a result, the steam and bubbles including the steam introduced from the steam introduction hole 41d of the second inner lid 41 are discharged to the outside of the space portion directly through the steam discharge hole 40a of the first inner lid 40. Can be suppressed.

According to the rice cooker 100 according to the first embodiment, the steam port 20 for discharging the steam in the inner pot 5 to the outside is formed on the outer surface, and the steam having a hollow structure communicating the steam port 20 and the inside of the inner pot 5 is formed. A discharge unit 6 is provided on the lid body 2, and a moisturizing valve body 9 that opens and closes in response to an increase in vapor pressure is provided on the steam discharge unit 6 and accumulates inside between the moisturizing valve body 9 and the steam port 20. A first space portion 60 is formed to prevent the discharged water droplets from being discharged to the outside. Therefore, in the rice cooker 100, when the steam generated in the inner pot 5 during rice cooking passes through the steam discharge section 6 and is discharged from the steam port 20, the momentum of the steam can be weakened in the first space section 60. There is no possibility that water droplets in the steam discharge unit 6 will vigorously scatter toward the upper surface of the lid 2, and the situation where the upper surface of the lid 2 becomes dirty can be prevented.

Further, the lid 2 is detachably attached to the outer lid 3 to which the steam discharge portion 6 is attached and the outer lid 3, and when the upper surface opening of the main body 1 is closed by the lid 2, the upper portion of the inner pot 5 is attached. It includes an inner lid 4 that closes the opening. The inner lid 4 is attached to the first inner lid 40 so as to face the upper surface opening of the main body 1 and the first inner lid 40 attached to the outer lid 3, and forms a space portion between the first inner lid 40. It has a second inner lid 41 and a second inner lid 41. Then, the second inner lid 41 is formed with a steam introduction hole 41d for introducing the steam in the inner pot 5 into the space portion, and the first inner lid 40 is formed with the steam introduced into the space portion into the steam discharge portion 6. A steam discharge hole 40a for discharging is formed. Therefore, the rice cooker 100 can separate the steam containing the rice cake generated in the inner pot 5 during rice cooking in the space where the first inner lid 40 and the second inner lid 41 are formed, and only the steam can be separated. Since the steam can be discharged to the steam discharge unit 6 through the steam discharge hole 40a formed in the first inner lid 40, the necessary steam can be retained inside and the rice is kept moist mainly when it is kept warm. be able to.

Further, the steam discharge portion 6 is provided with a top surface portion 7a having an opening surface facing the steam port 20 having a diameter smaller than the inner diameter of the first space portion 60. Therefore, in the rice cooker 100 of the first embodiment, when the steam generated in the inner pot 5 during rice cooking passes through the steam discharge unit 6 and is discharged from the steam port 20, the steam discharge unit 6 scatters with the force of the steam. Since the water droplets inside can collide with the top surface portion 7a, it is possible to prevent the water droplets from being vigorously scattered toward the upper surface of the lid 2.

Further, since the second space portion 61 is formed between the moisturizing valve body 9 and the inner pot 5 in the steam discharge part 6, the steam generated in the inner pot 5 during rice cooking is efficiently discharged from the steam discharge part 6. Can be guided to.

Further, the steam discharge unit 6 is located between the tubular first steam discharge member 7 forming the first space 60 between the moisturizing valve body 9 and the steam port 20, and between the moisturizing valve body 9 and the inner pot 5. It has a tubular second steam discharge member 8 that forms a second space portion 61. The moisturizing valve body 9 is arranged between the first steam discharge member 7 and the second steam discharge member 8. Therefore, in this rice cooker 100, since the steam discharge unit 6 has a simple and simple structure, the manufacturing cost can be reduced.

Further, the moisturizing valve body 9 is rotatably supported by a support portion 91 sandwiched between the first steam discharge member 7 and the second steam discharge member 8 and the support portion 91, and opens and closes in response to an increase in vapor pressure. It has a valve body portion 90 and a valve body portion 90. Therefore, in the rice cooker 100, even when the steam discharge unit 6 is assembled to the lid body 2, the user can rotate the valve body portion 90 with a finger to clean the inside of the steam discharge unit 6. Can be easily performed.

Further, the moisturizing valve body 9 is an annular seal portion 92 that seals one end surface of the first steam discharge member 7 and one end surface of the second steam discharge member 8 facing the one end surface of the first steam discharge member 7. Further has. Therefore, the rice cooker 100 does not need to separately provide a sealing material for closing the gap between the first steam discharge member 7 and the second steam discharge member 8, so that the number of members can be reduced and the manufacturing cost can be reduced. ..

Further, the moisturizing valve body 9 is arranged between the first steam discharge member 7 and the second steam discharge member 8 so that the support portion 91 is located on the front surface side of the main body portion 1. Therefore, the rice cooker 100 can suppress the twisting of the valve body portion 90 due to the repeated opening and closing of the lid body 2, and can maintain the function of the moisturizing valve body 9 for a long period of time.

The valve body 90 has a shape similar to the opening surface of the second steam discharge member 8. Therefore, in the rice cooker 100, the work of winding the valve body portion 90 toward the second space portion 61 side becomes easy, and the inside of the first space portion 60 can be cleaned while the valve body portion 90 is wound.

Further, the second steam discharge member 8 is formed with a relief groove portion 8c that forms a gap between the second steam discharge member 8 and the moisturizing valve body 9. Therefore, since the rice cooker 100 can guide air from the outside to the inside of the main body 1 through the relief groove 8c, the moisturizing valve body 9 strongly adheres to the second steam discharge member 8 and the inside of the main body 1 is sealed. It is possible to avoid the situation where the lid 2 cannot be opened.

Further, the second steam discharge member 8 is formed with a relief groove portion 8c that forms a gap between the second steam discharge member 8 and the moisturizing valve body 9 adjacent to the support portion 91. The valve body 90 is inclined toward the inside of the main body 1 from the back side to the front side of the main body 1. Therefore, the rice cooker 100 can guide the water droplets accumulated in the first space portion 60 to the support portion 91 side, and allow the water droplets to escape and flow to the second space portion 61 through the groove portion 8c, so that the water droplets can flow from the steam port 20. It is possible to prevent a situation in which the rice is scattered vigorously.

Further, in the second steam discharge member 8, the end surface on the moisturizing valve body 9 side is inclined toward the inner side of the main body 1 from the back side to the front side of the main body 1. The valve body 90 is supported by the inclined end face of the second steam discharge member 8 and is inclined. Therefore, the rice cooker 100 can efficiently guide the water droplets accumulated in the first space portion 60 toward the support portion 91 side, and can prevent the water droplets from being vigorously scattered from the steam port 20.

Further, the valve body portion 90 is provided with a protruding portion 90a protruding toward the second space portion 61. Therefore, in the rice cooker 100, the valve body portion 90 can be easily turned toward the second space portion 61 by pulling the protrusion 90a toward the second space portion 61, and the inside of the first space portion 60 can be easily turned. The efficiency of cleaning work can be improved.

Further, the steam discharge hole 40a of the first inner lid 40 is formed at a position facing the support portion 91. Therefore, the rice cooker 100 bypasses the steam that has entered the second space 61 so as to collide with the support 91, and then flows to the opening surface 80 of the second steam discharge member 8, so that the steam momentum is transferred to the support. It can be weakened at 91, and the situation where water droplets are vigorously scattered from the steam port 20 can be prevented.

The steam discharge portion 6 forming the first space portion 60 is formed with ribs 7c for blocking water droplets accumulated inside the steam discharge portion 6 in front of the steam port 20 when the lid 2 is opened. .. Therefore, in the rice cooker 100, when the lid 2 is opened, water droplets do not inadvertently leak from the steam port 20, so that the upper surface of the lid 2 does not get dirty and the surroundings do not get wet with water. , Safe and secure to use.

Embodiment 2.
Next, the rice cooker according to the second embodiment of the present invention will be described with reference to FIGS. 17 and 18. FIG. 17 is an enlarged cross-sectional view of a main part of the rice cooker according to the second embodiment of the present invention. FIG. 18 is a perspective view showing a moisturizing valve body of the rice cooker according to the second embodiment of the present invention. The same configuration as the rice cooker described in the first embodiment is designated by the same reference numerals, and the description thereof will be omitted as appropriate.

In the rice cooker of the second embodiment, as shown in FIGS. 17 and 18, the moisturizing valve body 9A is formed in a substantially rectangular parallelepiped shape that closes the opening surface 80 of the second steam discharge member 8. The moisturizing valve body 9A is formed of an elastic body such as a silicone resin, and a groove portion 9a into which the opening edge of the opening surface 80 of the second steam discharge member 8 is detachably fitted is formed on the outer peripheral surface. The opening edge formed by the top surface portion 8a of the second steam discharge member 8 functions as a holding portion of the moisturizing valve body 9. That is, the moisturizing valve body 9 is provided in the steam discharge portion 6 by fitting and holding the opening edge in the groove portion 9a.

As shown in FIG. 17, the groove width of the groove portion 9a of the moisturizing valve body 9A is formed to be larger than the plate thickness of the top surface portion 8a of the second steam discharge member 8. Further, a gap for passing steam is provided between the bottom surface of the groove portion 9a and the opening edge. That is, the moisturizing valve body 9 is held in a state where the upper portion is placed on the upper surface of the top surface portion 8a, and is lifted toward the first space portion 60 in response to an increase in vapor pressure, and the gap between the groove portion 9a and the opening edge. Steam can be discharged from.

Further, as shown in FIG. 18, a handle portion 9b protruding toward the second space portion 61 is provided on the end surface of the moisturizing valve body 9A on the second space portion 61 side. The moisturizing valve body 9 can be easily removed from the opening edge (holding portion) by the user pulling the handle portion 9b. Further, the moisturizing valve body 9 can be easily attached by the user pushing the handle portion 9b toward the opening edge (holding portion).

According to the rice cooker of the second embodiment, a holding portion (opening edge formed by the top surface portion 8a) is provided on the inner wall surface of the steam discharging portion 6, and the holding portion is detachably fitted into the moisturizing valve body 9A. 9a is formed on the outer surface. The moisturizing valve body 9A is held by a holding portion fitted in the groove portion 9A and is provided in the steam discharge portion 6. That is, since the moisturizing valve body 9 has a configuration in which the holding portion is fitted into the groove portion 9a and is detachably attached to the hollow inside of the steam discharge portion 6, the moisturizing valve body 9 is used when cleaning the inside of the steam discharge portion 6. 9 can be easily removed, and every corner can be cleaned and kept clean.

In the illustrated second embodiment, the configuration in which the opening edge of the second steam discharge member 8 is used as the holding portion is shown, but the present invention is not limited to this. The holding portion may be, for example, provided with a protrusion protruding toward the second space portion 61 on the inner wall surface of the second steam discharge member 8, or to the first space portion 60 on the inner wall surface of the first steam discharge member 7. A configuration may be provided in which protrusions are provided so as to project toward the steam discharge section 6, and the structure of the steam discharge section 6 may be combined with the structure.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the configuration of the above-described embodiments. For example, in the present embodiment, the configuration in which the first space portion 60 and the second space portion 61 are provided in the steam discharge portion 6 is shown, but a configuration in which only the first space portion 60 is provided may be used. In short, it should be added that the gist (technical scope) of the present invention also includes various modifications, applications, and uses made by those skilled in the art as necessary.

1 Main body, 2 lid, 3 outer lid, 4 inner lid, 5 inner pot, 5a flange, 6 steam discharge part, 6a protrusion, 6b screw member, 6c screw hole, 7 first steam discharge member, 7a top Face part, 7b insertion part, 7c rib, 7d holding part, 7e protrusion part, 8th second steam discharge member, 8a top surface part, 8b positioning protrusion, 8c relief groove part, 9, 9A moisturizing valve body, 9a groove part, 9b handle part, 10 Inner pot storage, 11 Hing mechanism, 11a Hing shaft, 11b Hing spring, 12 Lid open / close button, 13 Heating coil, 14 Pot bottom temperature sensor, 15 Body heater, 16 Operation display, 17 Lid heater plate, 18 Lid heater, 20 Steam port, 30 Upper lid, 30a packing, 31 Lower lid, 31a opening, 31b Inner lid locking part, 40 1st inner lid, 40a Steam discharge hole, 41 2nd inner lid, 41a recess, 41b Hole, 41c on-off valve, 41d steam introduction hole, 60 1st space, 61 2nd space, 80 opening surface, 90 valve body, 90a protrusion, 91 support, 91a positioning groove, 92 seal, 92a, 92b protrusion, 100 rice cooker.

Claims (19)

A main body having an inner pot storage part with an open top surface,
An inner pot that is detachably attached to the inner pot storage unit and
A lid body that can open and close the upper surface opening of the main body portion is provided.
The lid body is provided with a steam outlet having a hollow structure in which a steam port for discharging steam in the inner pot to the outside is formed on the outer surface and the steam port and the inside of the inner pot are communicated with each other.
The steam discharge unit is provided with a moisturizing valve body that opens and closes in response to an increase in vapor pressure, and suppresses the discharge of water droplets accumulated inside between the moisturizing valve body and the steam port to the outside. It has a tubular first steam discharge member forming a first space portion and a tubular second steam discharge member forming a second space portion between the moisturizing valve body and the inner pot.
The moisturizing valve body is
A support portion sandwiched between the first steam discharge member and the second steam discharge member,
It has a valve body portion that is rotatably supported by the support portion and opens and closes in response to an increase in vapor pressure.
A rice cooker in which the opening surface of the second steam discharge member is closed by the valve body portion . A main body having an inner pot storage part with an open top surface,
An inner pot that is detachably attached to the inner pot storage unit and
A lid body that can open and close the upper surface opening of the main body portion is provided.
The lid body is provided with a steam outlet having a hollow structure in which a steam port for discharging steam in the inner pot to the outside is formed on the outer surface and the steam port and the inside of the inner pot are communicated with each other.
The steam discharge unit is provided with a moisturizing valve body that opens and closes in response to an increase in vapor pressure, and suppresses the discharge of water droplets accumulated inside between the moisturizing valve body and the steam port to the outside. It has a tubular first steam discharge member forming a first space portion and a tubular second steam discharge member forming a second space portion between the moisturizing valve body and the inner pot.
The moisturizing valve body is arranged between the first steam discharge member and the second steam discharge member.
A rice cooker in which a relief groove portion forming a gap between the second steam discharge member and the moisturizing valve body is formed . The rice cooker according to claim 1 , wherein the second steam discharge member is formed with a relief groove portion forming a gap between the second steam discharge member and the moisturizing valve body. The lid body includes an outer lid to which the steam discharge portion is attached.
It is provided with an inner lid that is detachably attached to the outer lid and closes the upper opening of the inner pot when the upper surface opening of the main body is closed by the lid body.
The inner lid is attached to the first inner lid so as to face the upper surface opening of the main body portion and the first inner lid attached to the outer lid, and forms a space portion between the first inner lid. Has a second inner lid,
The second inner lid is formed with a steam introduction hole for introducing the steam in the inner pot into the space.
The rice cooker according to any one of claims 1 to 3, wherein the first inner lid is formed with a steam discharge hole for discharging the steam introduced into the space portion to the steam discharge portion. The invention according to any one of claims 1 to 4, wherein the steam discharge portion is provided with a top surface portion having an opening surface facing the steam port having a diameter smaller than the inner diameter of the first space portion. rice cooker. The moisturizing valve body is
A support portion sandwiched between the first steam discharge member and the second steam discharge member,
It has a valve body portion that is rotatably supported by the support portion and opens and closes in response to an increase in vapor pressure.
The rice cooker according to any one of claims 1 to 5 , wherein the opening surface of the second steam discharge member is closed by the valve body portion. The moisturizing valve body further has an annular sealing portion that seals one end surface of the first steam discharge member and one end surface of the second steam discharge member facing the one end surface of the first steam discharge member. And
The rice cooker according to claim 6, wherein the support portion is formed on the inner surface of the seal portion. According to claim 6 or 7, the moisturizing valve body is arranged between the first steam discharge member and the second steam discharge member so that the support portion is located on the front surface side of the main body portion. The listed rice cooker. The rice cooker according to any one of claims 6 to 8, wherein the valve body portion has a shape similar to the opening surface of the second steam discharge member. The second steam discharge member is formed with a relief groove portion that forms a gap between the second steam discharge member and the moisturizing valve body adjacent to the support portion.
The rice cooker according to any one of claims 6 to 9, wherein the valve body portion is inclined toward the inner side of the main body portion from the back surface side to the front surface side of the main body portion. In the second steam discharge member, the end surface of the moisturizing valve body side is inclined toward the inner side of the main body portion from the back surface side to the front surface side of the main body portion.
The rice cooker according to claim 10 , wherein the valve body portion is supported by an inclined end face of the second steam discharge member and is inclined. The rice cooker according to any one of claims 6 to 11 , wherein the valve body portion is provided with a protrusion protruding toward the second space portion. A main body having an inner pot storage part with an open top surface,
An inner pot that is detachably attached to the inner pot storage unit and
A lid body that can open and close the upper surface opening of the main body portion is provided.
The lid body is provided with a steam outlet having a hollow structure in which a steam port for discharging steam in the inner pot to the outside is formed on the outer surface and the steam port and the inside of the inner pot are communicated with each other.
The steam discharge unit is provided with a moisturizing valve body that opens and closes in response to an increase in vapor pressure, and suppresses the discharge of water droplets accumulated inside between the moisturizing valve body and the steam port to the outside. The first space part is formed,
A holding portion is provided on the inner wall surface of the steam discharge portion.
The moisturizing valve body is formed with a groove portion on the outer surface into which the holding portion is detachably fitted.
The coercive Shimeben body, the held in the holding portion is fitted into the groove provided on the steam discharging part,炊rice device. The lid body includes an outer lid to which the steam discharge portion is attached.
It is provided with an inner lid that is detachably attached to the outer lid and closes the upper opening of the inner pot when the upper surface opening of the main body is closed by the lid body.
The inner lid is attached to the first inner lid so as to face the upper surface opening of the main body portion and the first inner lid attached to the outer lid, and forms a space portion between the first inner lid. Has a second inner lid,
The second inner lid is formed with a steam introduction hole for introducing the steam in the inner pot into the space.
The rice cooker according to claim 13, wherein the first inner lid is formed with a steam discharge hole for discharging the steam introduced into the space portion to the steam discharge portion. The rice cooker according to claim 13 or 14, wherein the steam discharge portion is provided with a top surface portion having an opening surface facing the steam port having a diameter smaller than the inner diameter of the first space portion. The rice cooker according to any one of claims 13 to 15, wherein a second space portion is formed between the moisturizing valve body and the inner pot in the steam discharge portion. The steam discharge part is
A tubular first steam discharge member forming the first space between the moisturizing valve body and the steam port, and
It has a tubular second steam discharge member that forms the second space between the moisturizing valve body and the inner pot.
The rice cooker according to claim 16, wherein the moisturizing valve body is arranged between the first steam discharge member and the second steam discharge member. In the steam discharge portion, a second space portion is formed between the moisturizing valve body and the inner pot.
The steam discharge portion includes a tubular first steam discharge member that forms the first space portion between the moisturizing valve body and the steam port, and the first steam discharge portion between the moisturizing valve body and the inner pot. It has a tubular second steam discharge member that forms two spaces, and
The moisturizing valve body is
A support portion sandwiched between the first steam discharge member and the second steam discharge member,
It has a valve body portion that is rotatably supported by the support portion and opens and closes in response to an increase in vapor pressure, and the opening surface of the second steam discharge member is closed by the valve body portion.
The rice cooker according to claim 4 or 14 , wherein the steam discharge hole of the first inner lid is formed at a position facing the support portion. The steam discharge portion forming the first space portion is formed with ribs that block water droplets accumulated inside the steam discharge portion in front of the steam port when the lid is opened. The rice cooker according to any one of claims 1 to 18 .

Images