JPS6029924Y2 - Rice cooker heat retention lid support device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a support device for a heat-insulating lid that is detachably held within the outer lid of a rice cooker.

One of the main purposes is to support two lids, an inner lid and a heat-insulating lid, at an appropriate distance from each other on the outer periphery of a press packing that is flexible and has a cylindrical part and a cushion part integrally formed. By making it possible to removably support the two lids within the outer lid, the support mechanism for the two lids, the inner lid and the insulation lid, can be significantly simplified and the handling operations thereof can be extremely facilitated. It is something that should be kept in mind.

An embodiment of the present invention will be described as follows based on the attached drawings: 1 is a main body formed by bending and winding a metal plate into a cylindrical shape; 2 is a main body formed by pressing a metal plate and having a dish-shaped cross section; Bottom plate,
3 is a protective frame made of synthetic resin fitted to the upper end of the wood end, 4 is an outer lid that is hinged to the protective frame 3 so that it can be opened and closed, 5 is a handle formed integrally with the outer lid 4, and 6 is an outer cover. A hook provided on the outer lid for locking the lid 4 to the main body 1; 7 a hook receptacle installed on the outside of the upper end of the main body 1 for locking the hook 6; and 8 a hook 6 secured to the hook receptacle. 9 is a cord reel attached to the bottom plate 2 attached to the lower part of the main body 1; 10 is an outer pot installed inside the main body; Sheath heater 11
A thermally responsive element 13 made of ferrite resin is installed in the center of the hot plate 12, and a lever that operates in conjunction with the thermally responsive element 13 is attached to the thermally responsive element 13. 14, the extended end of the lever 14 is extended to the position of a switch panel 15 attached to the outside of the main body 1, and a microswitch type changeover switch 6, which opens and closes in conjunction with the operation of the lever 14, is connected to the outside. It is attached to the switch holder provided at the bottom of the pot.

The above-mentioned thermal element 13 is of a mechanism conventionally employed in this type of rice cooker called a center touch thermo, and the inner pot 17 is placed inside the outer pot 10.
When the rice is stored, the heat receiving body of the thermally responsive element 13 comes into elastic contact with the bottom surface of the inner pot 17, and the heat is conducted to the heat receiving body in accordance with the temperature when the rice in the inner pot 17 is cooked. Due to the magnetic saturation of the ferrite resin, the lever 14
When the switch is released and the heater 11 circuit is closed, the changeover switch is opened to prevent the heater 11 from being energized.

At the same time as the changeover switch 16 is opened, a heat-insulating space heater, which is electrically insulated and attached to a heat sink 18 that has been attached to the inner surface of the outer lid 4, is energized, and the heat generated by this heater cools the cooked rice. This is to maintain the temperature at about 70°C so that the temperature does not drop.

Rice is cooked and kept warm as described above, but as time passes during rice cooking, the temperature of the inner pot 17 rises and the pressure of the inner pot 17 also increases, which causes the outer lid 4 to close due to steam pressure. As the rice is pushed up, steam gushes out from the gap between the main body and the lid, and this turns into water droplets. In order to prevent this from happening, a steam lobe 19 is provided on the heat sink 18 provided inside the outer lid to prevent the steam from gathering in the space between the heat retaining lid 20 and the inner lid 21. This allows the steam to escape from the steam lobe 19 into the atmosphere, thereby making it possible to prevent the above-mentioned problems from occurring.

The heat-retaining lid 20 and the inner lid 21 are constructed by inserting and removably inserting a pressing gasket 23 into a head shaft rod 22 that is pre-erected at the center of a heat dissipation plate 18 attached to the inner surface of the outer lid 4. 23, the heat insulating lid 20 and the inner lid 21 are elastically engaged, and the pressing gasket 23 has a cushion portion 24 and a cylindrical portion 25, as shown in FIG. 2 of the accompanying drawings. It is a flexible nylon resin molded product with a protrusion 26 and a flange 27 formed at the lower end and middle part of the outer periphery of the cylindrical part 25, respectively. The insertion hole 28 opened in the center of the lid 21 is inserted, and then the insertion hole 29 opened in the center of the heat insulation lid 20 is inserted.
is inserted into the projecting edge 26 portion, and then the center hole 30 of the pressing gasket 23 is inserted into the headed shaft rod 22, which is formed into a headed shape by bulging the shaft end. When inserting the press nylon 23 from above, the flexible nylon press gasket 23 can not only be easily inserted, but also elastically adhere to the shaft rod 22 once it is inserted, so that it can be removed. The inner lid and the heat-insulating lid can be held together without any problems.

Therefore, if you need to wash the inner lid and heat-insulating lid frequently to remove sticky rice grains, etc. that have stuck to them after rice cooking is completed, hold the inner lid and heat-insulating lid at the same time and press the pressure gasket 23 onto the shaft 22.
When pulled out, the elastic pressure packing 23 becomes compressed and can be easily removed from the shaft rod, making it possible to wash the inner cover and heat-insulating cover with water extremely easily.

In addition, 31 in the figure is a heat retention heater wrapped around the upper outer circumference of the outer lid 10, and when the rice cooking heater circuit is cut off after rice cooking is completed, electricity is turned on in conjunction with the heat retention heater inside the outer lid, and the cooked rice is heated. It will keep you warm.

The heat-retaining heater is configured to connect an automatic temperature controller to an electric circuit to control the temperature of the heat-retaining heater to maintain the heat-retaining temperature at a substantially constant temperature.

As described above, the present invention has a cylindrical part integrally formed with a flexible pressure packing, and has a projecting edge and a flange at the lower end and middle part of the outer periphery. and the inner cover are fitted, and then a pressure gasket holding the two at a constant distance is elastically engaged with a headed shaft provided upright on the inner surface of the outer cover so as to be freely insertable and removable. Therefore, the inner cover and the heat-insulating cover can be held in one press packing, which has the advantage of simplifying the structure and simplifying handling.

[Brief explanation of drawings]

The attached drawings show one embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view, Fig. 2 is an enlarged sectional view of the pressure packing, and Fig. 3 is an enlarged sectional view of the pressure packing.
The figure shows a longitudinal side view, and FIG. 4 shows a plan view of the legs. Explanation of main part codes, 20...Heat insulation lid, 26...
...Protrusion, 21...Inner lid, 27...
・Cylindrical part, 23...Press gasket, 28...
...Insertion hole, 24...Cushion part, 29.
...Insertion hole, 25...Cylindrical part, 30...
...Center insertion hole.

Claims (1)

[Scope of utility model registration request] A flexible pressure packing 23 in which the cylindrical part 25 and the cushion part 24 are integrally formed has a flange 26 and a flange 27 formed at the lower end and middle part of the outer periphery of the cylindrical part 25. 26 and the flange 27 are elastically engaged with insertion holes 28 and 29 formed at the center of the inner cover 21 and the heat-insulating cover 20, respectively, and the inner cover 21 and the heat-insulating cover 20 are spaced apart from each other by a certain distance. The center insertion hole 30 of the pressure gasket 23 is held facing each other.
This rice cooker heat insulating lid support device is constructed by removably engaging with a headed shaft 22 erected at the center of the inner side of an outer lid 4 which is hinged to the upper part of a main body 1 so as to be openable and closable.