JP3617822B2 - Steamer set of rice cooker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a steam hole set in a rice cooker such as a rice cooker.
[0002]
[Prior art]
Conventionally, a steam hole set including a trapping case is provided on the lid of the rice cooker in order to prevent the rice cooker from blowing out together with the steam during cooking by the rice cooker (Japanese Patent Laid-Open No. 10-2010). No. 201620, Japanese Patent Laid-Open No. 2000-300427, etc.). These vapor hole sets can be removed on the lid surface side from the necessity of internal maintenance.
[0003]
In addition, when a steam hole set is provided on the lid of the rice cooker, the steam hole set can be removed on the lower surface side of the lid in order to avoid exposing the steam hole set to the surface of the lid. It has also been practiced to make this appear. In this case, since the tow trapping case that constitutes the steam hole set is fixed to the heat radiating plate, a case cover for detachment is attached to the upper surface of the case so that the steam passes through the case cover. A steam outlet is provided.
[0004]
[Problems to be solved by the invention]
On the other hand, during the heat insulation after cooking, the moisture of the cooked rice is released from the steam hole of the lid through the steam outlet of the above case lid, so the moisture of the cooked rice is lost over time and the taste deteriorates. There are concerns. For this reason, it is conceivable to provide a valve device on the case lid of the trapping case. In that case, the components of the steam hole set are the four components of the trapping case, the case lid, the valve chamber member, and the moisturizing valve body. As a result, the number of parts increases.
[0005]
Therefore, an object of the present invention is to realize a structure having a moisturizing function for cooked rice with a simple structure in a steam hole set that can be removed on the lower surface side of the lid.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a steam hole set for a rice cooker interposed between an upper surface of a heat sink and a lower surface of the lid detachably attached to the lower surface of the lid of the rice cooker. If the set is made up of a trapping case, a valve chamber member and a moisture retaining valve body, the lower surface of the trapping case is opened, and the open portion of the lower surface is a part including the steam inlet provided in the heat radiating plate. An attachment portion that penetrates the inside and outside of the trap case is provided on the upper surface of the catch case, and the valve chamber member is attached to the attachment portion, and the valve is provided by the moisturizing valve body housed in the valve chamber member. The valve hole on the lower surface of the chamber member is partially blocked, the outlet side of the valve chamber member faces the lower side of the vapor hole of the lid, and an engagement portion provided on the upper surface of the trapping case is provided on the lower surface of the lid Removably engaged with the moisture retaining valve body weight Employing the configuration chosen so as to float from the valve hole by the steam pressure during cooking.
[0007]
According to said structure, the vapor pressure which generate | occur | produces by rice cooking is exhausted through the valve hole opened partially, and when a pressure rises more than fixed, a moisture retention valve body will surface. For this reason, normal rice cooking is performed without applying pressure to the rice cooking action. The rice balls generated by cooking rice are caught in the rice case catching case and will not spill out. When rice cooking is finished and the vapor pressure is lost, the moisture retaining valve body returns to the valve hole to prevent the moisture of the cooked rice from being released as much as possible. When cleaning, the heat radiating plate is separated from the lid, and if necessary, the catching case is removed from the lid. Since the open surface of the trapping case is blocked by the above-mentioned heat sink, no case lid is required to block this, and therefore the steam hole set includes the trapping case, the valve chamber member and the moisture retaining valve body. Consists of three parts.
[0008]
As a more specific configuration of the above steam hole set, the valve chamber member is formed by a plurality of elastic claw pieces provided at the lower end of the annular part, and a deviation preventing convex part provided at the upper end of the annular part, The upper end of the valve chamber is formed by the deviation preventing convex portion, and the lower end of the valve chamber is formed by the elastic protrusion for receiving the valve provided on the inner surface of the elastic claw piece and the valve chamber member supporting protrusion provided on the inner surface of the mounting portion. The structure which formed the valve hole can be taken. According to this configuration, by combining one valve chamber member with the rice catching case, the rice catching case can be provided with a moisturizing function for cooked rice. Further, by fitting the valve chamber member to the attachment portion of the capture case, it is possible to restrict elastic deformation of the elastic claw piece and reliably prevent the moisture retaining valve body from deviating.
[0009]
In addition, as a structure of the engaging portion with respect to the lower surface of the lid of the above-described catching case, the engagement portion is provided on the outer surface of the annular wall provided on the upper surface of the catching case, so that elasticity in the radial direction is provided. Can be configured. According to this configuration, when the catch case is attached, a click feeling is obtained by the elasticity of the engaging portion, and it can be confirmed sensuously that the catch case is attached securely.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, the rice cooker of the embodiment has a lid 3 attached to a jar main body 1 by a hinge 2 so as to be freely opened and closed. A lid heater 4 is built in the lid 3, and a radiator plate set 6 including a radiator plate 5 is detachably attached below the lid heater 4.
[0011]
The heat radiating plate 5 is provided with a steam port 7 (see FIG. 2B), and a steam passage extending from the steam port 7 to the steam hole 8 on the top surface of the lid 3 is provided inside the lid 3. A steam hole set 9 is provided in the middle of the steam passage 3.
[0012]
As shown in FIGS. 2 and 3, the steam hole set 9 includes a trapping case 11, a valve chamber member 12, and a moisturizing valve body 13. The trapping case 11 has a bowl shape with an open bottom surface, and a partition wall 14 is provided inside (see FIGS. 2B and 4). The partition wall 14 is provided so as to be offset toward one side inside the trapping case 11, and by the partition wall 14, the interior of the trapping case 11 is connected to the narrower steam introducing portion 15 and the wider trapping separation portion 16. Divided. One end portion of the partition wall 14 is integrated with the inner surface of the trapping case 11, but the other end portion has a gap, and serves as an introduction port 17 for introducing steam from the steam introducing portion 15 to the roughly separating portion 16. ing.
[0013]
Further, a mounting portion 19 for the valve chamber member 12 is provided on the inner peripheral portion of the boss portion 18 provided on the upper surface of the trapping case 11. The valve chamber member support protrusions 21 are provided at three locations on the inner peripheral surface of the mounting portion 19 at a constant interval in the circumferential direction (see FIGS. 2A and 3). When the valve chamber member 12 is fitted to the mounting portion 19, a part thereof is engaged and supported by the valve chamber member support protrusion 21.
[0014]
As shown in FIGS. 2 and 3, the valve chamber member 12 includes three elastic claw pieces 23 extending downward at the lower end of the annular portion 22, and three protruding toward the center on the inner surface of the upper end of the annular portion 22. It consists of the deviation prevention convex part 24 of this. The three elastic claw pieces 23 are provided with a valve receiving projection 25 on the inner surface at the lower end thereof, and the valve chamber 26 is formed by fitting each elastic claw piece 23 between the valve chamber member support projections 21. Is done. That is, the valve chamber 26 is configured by fitting the valve chamber member 12 to the mounting portion 19, and the lower end of the valve chamber 26 is formed by the valve receiving projection 25 and the valve chamber member support projection 21, and the deviation prevention convex portion 24. Thus, the upper end is formed.
[0015]
The small protrusion 23 ′ provided on the outer surface of the elastic claw piece 23 engages with the lower end of the attachment portion 19, thereby preventing the valve chamber member 12 from coming out. In addition, since the elastic claw piece 23 is fitted into the attachment portion 19 to be deformed outwardly, there is no possibility that the internal moisture retaining valve body 13 deviates from the valve chamber 26.
[0016]
The moisturizing valve body 13 is a solid or hollow ball made of lightweight plastic, rubber, metal or the like, and before the valve chamber member 12 is fitted to the mounting portion 19, its elastic claw piece 23 is It is housed inside by being elastically deformed outward and pushed.
[0017]
At the lower end of the valve chamber 26, a gap formed between the valve chamber member supporting projection 21 and the valve receiving projection 25 is a valve hole 28 (see FIG. 5). Even in the closed state in which the moisture retaining valve body 13 is placed on the valve hole 28, the range indicated by hatching in FIG. 5A is opened and is not completely closed. Moreover, the open range of the state which open | released the valve hole 28 by the moisturizing valve body 13 rising is shown by the hatching of FIG.5 (b). The open area in the case of FIG. 5A is a size corresponding to the area of a hole of Φ5 mm to 3 mm. In addition, the open area in the case of FIG. 5B is a size corresponding to the area of a hole having a diameter of 9 mm or more.
[0018]
An annular wall 31 is provided around the aforementioned boss portion 18 on the upper surface of the above-described snatching case 11. Engaging portions 32 projecting outward are provided at three locations on the outer peripheral surface of the annular wall 31, and the engaging portions 32 are detachably engaged with ribs 33 (see FIG. 1) provided on the inner surface of the lid 3. I'm trying to let you. The annular wall 31 is integrated on the upper surface of the case 11 between the engaging protrusions 32 by a connecting portion 34 (see FIGS. 2A and 3), but the other portions are free. As a result, elasticity in the radial direction is imparted, and when the steam hole set 9 is attached to the lid 3, the steam hole set 9 of the embodiment shown in FIGS. Next, the operation will be described. The steam hole set 9 is attached to the lid 3 by engaging the engaging portion 32 on the upper surface thereof with the rib 33 of the lid 3, and further, the radiator plate 5 is attached to the lid 3 by attaching the radiator plate 6 to the lid 3. If it touches, it will contact | abut to the open surface of the acquisition case 11. FIG. At the contact portion, the steam passage packing 36 on the lid 3 side is pressed against the outer periphery of the flange portion 35 of the capturing case 11 and sealed (see FIG. 1). The upper end of the valve chamber 26 faces the vapor hole 8 of the lid 3.
[0019]
During cooking, when the vapor pressure generated inside the jar body 1 is small, it passes through the partially opened valve hole 28 around the moisturizing valve body 13, and the moisturizing valve body 13 does not move. However, when the vapor pressure increases somewhat, the moisturizing valve body 13 rises and opens the valve hole 28 greatly. Therefore, even if the moisture retention valve body 13 is present, it is possible to avoid an increase in internal pressure.
[0020]
When the steam is mixed with the steam, the steam is introduced into the separation chamber 14 from the steam inlet 15 of the trapping case 9 through the inlet 17 as shown by the arrow A in FIG. While moving along, gas-liquid separation, that is, separation of steam and rice cake, is performed by the action of centrifugal force. The separated steam is discharged to the outside from the steam hole 8 through the valve chamber 26.
[0021]
When rice cooking is completed and the state is shifted to the heat retaining state, the moisturizing valve body 13 is placed on the valve hole 28 by its own weight, and a part of the valve hole 28 is excluded to close it. The blockage restricts the entry and exit of air, so that the heat of the cooked rice is not easily taken away during heat insulation, and the dissipation of the moisture is also prevented.
[0022]
When performing maintenance, the heat sink set 6 is removed from the lid 3 and the vapor hole set 9 is removed from the lid 3. Installation after maintenance is performed in the reverse order of removal.
[0023]
FIG. 6 shows a modified example of the tow catching case 11 in which a plurality of tow discharge holes 37 are provided at predetermined intervals in the circumferential direction at the boundary between the peripheral wall of the separating portion 16 and the flange portion 35. is there. FIGS. 6A and 6B show the case where the discharge hole 37 is provided in the flange portion 35, and FIGS. 5C and 5D show the flange portion 35 and the peripheral wall rising from the flange portion 35. FIG. In any case, since the large weight of the tongue is partially discharged from the discharge hole 37 due to the centrifugal force when moving along the inner peripheral surface, the amount of the tongue staying in the trapping case 11 is reduced, Reduces spillage.
[0024]
FIG. 7 shows a split as shown in FIG. 7A instead of the engaging means by the annular wall 31 and the engaging portion 32 provided thereon as means for engaging the catch case 11 with the lid 3. What uses the ring 38 is shown. The split ring 38 is generally fitted into a groove 39 provided around the boss portion 18 of the capture case 11, and at the same time, an engagement rib 41 provided on the outer peripheral portion of the split ring 38 is connected to the rib 33 on the lid 3 side. It is made to engage with.
[0025]
The other disclosed matter shown in FIG. 8 is that a power adjustment volume 42 in an IH rice cooker is provided on a display substrate 43, and a guide boss 45 is provided on the inner surface of a driver insertion hole of a body member 44 opposite to the volume 42. It is a thing. At the time of manufacture, a screwdriver is inserted into the guide boss 45 from the outer surface of the body member 44 and the volume 42 is operated. After completion of the adjustment work, a seal 46 is put on the driver insertion hole to hide the hole.
[0026]
【The invention's effect】
As described above, according to the present invention, during rice cooking, the rice balls are captured to prevent spilling, and during the heat insulation after the completion of rice cooking, the moisture is prevented from being diffused and the cooked rice is moisturized. To prevent. In addition, if the trapping case open surface is closed with a heat sink, no case lid parts are required, and the number of parts can be reduced. In addition, the elasticity of the elastic claw pieces necessary for housing the moisture retaining valve body in the valve chamber member is restricted by fitting the valve chamber member into the mounting portion of the capture case, so that deformation is impossible. Prevents the moisture retention valve from deviating.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional view of a lid portion of the embodiment. FIG. 2 (a) is an enlarged plan view of the above-described tow catching case. FIG. 1 (b) is a cross-sectional view taken along line bb in FIG. Fig. 4 is an enlarged exploded perspective view of the same type of catch case. Fig. 5 is an enlarged bottom view of the same type of catch case. Fig. 5 is a partial bottom view of the same type of catch case. (A) Bottom view of a modified example of the tow trapping case (b) Cross-sectional view taken along line bb in FIG. (A) (c) Bottom view of another modified example of the tow trapping case (d) (c) [Fig. 7] (a) A cross-sectional view of a modified example of the engagement structure of the tow catching case. (B) A plan view of the split ring of (a). [Fig. 8] Rice cooking of the embodiment Partial cross-sectional view of the jar [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Jar body 2 Hinge 3 Cover 4 Cover heater 5 Heat sink 6 Heat sink set 7 Steam port 8 Steam hole 9 Steam hole set 11 Part 17 Inlet 18 Boss part 19 Attachment part 21 Valve chamber member support protrusion 22 Annular part 23 Elastic claw piece 23 'Small protrusion 24 Deviation prevention convex part 25 Valve receiving protrusion 26 Valve chamber 28 Valve hole 31 Annular wall 32 Engaging part 33 Rib 34 Connection portion 35 Brim portion 36 Packing 37 Screw discharge hole 38 Split ring 39 Groove 41 Engaging rib 42 Volume 43 Display substrate 44 Body member 45 Guide boss 46 Seal

Claims (3)

In the steam hole set of the rice cooker interposed between the upper surface of the heat sink and the lower surface of the lid detachably attached to the lower surface of the lid of the rice cooker. And the lower surface of the trap case is opened, and the open surface is brought into contact with the portion including the steam port provided in the heat radiating plate. The valve chamber member is attached to the attachment portion, and the valve hole on the lower surface of the valve chamber member is partially blocked by the moisturizing valve body housed in the valve chamber member. The exit side of the chamber member faces below the vapor hole of the lid, and the engagement portion provided on the upper surface of the trapping case is detachably engaged with the lower surface of the lid, thereby reducing the weight of the moisture retaining valve body. So that it rises from the valve hole by the steam pressure during cooking Steam hole set cooker, characterized in that selection was. The valve chamber member is formed by a plurality of elastic claw pieces provided at the lower end of the annular portion, and a departure prevention convex portion provided at the upper end of the annular portion, and the valve chamber upper end is formed by the departure prevention convex portion, 2. The lower end of the valve chamber and the valve hole are formed by an elastic protrusion for receiving a valve provided on the inner surface of the elastic claw piece and a valve chamber member supporting protrusion provided on the inner surface of the mounting portion. Steam cooker set of rice cooker as described in 2. The engaging portion with respect to the lower surface of the lid provided on the above-mentioned catching case is provided on the outer surface of the annular wall provided on the upper surface of the above-mentioned catching case, and the annular wall has radial elasticity. The steam hole set of the rice cooker according to claim 1 or 2.

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