JPS59186525A - Rice cooker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rice cooker that employs pressure cooking.

Conventional structure and its problems Conventionally, in rice cookers that pressure cook rice using a pot attached to the main body and an inner lid covering the opening of the pot, an annular backing is attached to the periphery of the inner lid. There are many. Furthermore, in order to prevent the inflow of outside air from the gap formed between the outer cover and the main body, an annular tongue piece is provided outside the annular backing that is completely attached to the inner cover, and is engaged with the heat dissipation plate. There was also a structure in which another backing having a section was brought into contact with the upper frame to block the space between the outer cover 9 bodies and prevent outside air from flowing in through the gap between the outer cover 1 bodies. However, this has a space between the inner lid and the heat dissipation plate, and as shown in Figure 3, heat is dissipated from the steam cylinder to the outside during cooking or keeping warm, so power saving is not sufficient. I can't say that. Still, it is easy for rice grains, etc. to remain on the flange of the pot when eating while keeping warm, and in this case, since the contact part of the inner lid backing is the pot flange, as shown in Figure 4,
Moisture and heat from the cooked rice were released from the steam cylinder to the outside, which affected the drying of the cooked rice. If the backing was still attached backwards, there were cases where the product could not function to its full potential.

OBJECTS OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a rice cooker 29 with improved rice cooking and heat retention performance.

Structure of the Invention In order to achieve all of the above objects, the present invention provides a pot attached to the main body, an inner lid that covers the tin filling opening and a backing attached to the peripheral edge, and a backing attached to the inner lid that is vertically symmetrical. Another backing which has an extending annular tongue part and is in contact with the heat sink on the side of the pot and the outer lid and is engaged with the heat sink is located at the upper edge of the main body to create a space between the outer cover and the main body. It closes slowly by coming into contact with the upper frame, which effectively brings out the synergistic effect of the two gaskets.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

Reference numeral 1 denotes a main body of the instrument, including a cylindrical outer shell 2, an upper frame 3 that engages with the upper curling part of the outer shell 2, a retaining frame 4 that engages with the upper frame 3, and a heat insulating paulownia wood interposed between the two. Consists of 5 etc. Reference numeral 6 denotes a pot serving as a rice cooking capacity Z3, which has an arbitrary gap from the opening of the cooking frame 4 and is detachably provided. on the other hand,
The outer lid Y and the handle 8 are integrally molded, and a heat sink 11 with a heat insulating heater 10 is attached to the bottom surface through a lid insulating material 9, and a steam cylinder is attached to the heat sink 11. It penetrates the through hole of the outer lid γ. Reference numeral 13 designates an upper frame backing made of silicone rubber, which engages with the burring part of the heat dissipation plate 71, and an annular tongue piece 14 on the periphery of the upper frame backing contacts the upper end flat part of the upper frame 3, and connects the main body 1 and the outer cover 7. The structure is such that the entire space created during the process can be closed late. Reference numeral 15 denotes an inner lid made of an aluminum plate, and an inner lid backing 16 made of silicone rubber is fitted to the nongrum of the peripheral car 1 in order to seal the pot 6. The inner lid backing 16 has annular tongue portions 17 and 18 that are vertically symmetrical, and each abuts against the heat sink 11 and the seven rung portions of the pot 6 with a certain amount of deflection, so that when the internal pressure increases during rice cooking, The upward pressing of the inner cover 15 in is configured so that the sealing performance is not impaired even if the inner cover 15 is displaced by force. In addition, the earth part annular tongue part 17 of the inner lid backing 16 and the upper frame backing 1 shown in @
3, the hot air in the space between the pot 6 and the protective frame 4 is blocked from flowing out to the outside.

Further, the inner lid 15 is provided with a valve seat 19 made of silicone rubber for cooking rice at a constant pressure, and a rice valve 2o which is detachable from the valve seat 19. Furthermore, a bush 21 made of silicone rubber is provided in the center, and a bottle 22 is screwed onto the heat sink 11.
It has a removable structure.

The above configuration (at 7τ, the hole A of the steam cylinder 1γ and the main body 1
The inflow of outside air from B between the outer cover 7 and the outer cover 7 is delayed as shown by the arrow in FIG.
In addition, the hot air supplied between the storage frame 5 and the pot 6 is also delayed from flowing out to the outside. It can also produce a reduction in the amount of heating energy used. In addition, the presence of foreign matter in the flange of the pot 6, which was considered a drawback of the conventional method, can be covered by the annular tongue portion 17 of the inner lid backing 16, thereby maintaining the above-mentioned performance and making the cooked rice moist without drying. Good heat retention is possible. Since the sweet inner lid backing 16 is vertically symmetrical, there is no danger of misuse.

Effects of the Invention As described above, according to the present invention, the synergistic functions of the two functions enable energy-saving and good rice cooking and heat retention, which is extremely valuable.

[Brief explanation of drawings]

@ Figure 1 is a sectional view of the top of a jar rice cooker showing one embodiment of the present invention, Figure 2 is a sectional view of the same essential part, and Figure 3. FIG. 4 is a partial sectional view of a conventional example. 1°°゛°body, 6... pot, 7... outer lid, 11... heat sink, 13... upper frame backing, 14- °'EfJ tongue piece part, 16...inner lid, 16...inner lid) Z kink°, 17', 18
...Annular tongue segment. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 3
Figure 4

Claims (1)

[Claims] A pot that can be attached to the main body, an inner lid that covers the opening of the pot and has a backing attached to the periphery, and an annular tongue that extends symmetrically to the backing attached to the inner lid, which dissipates heat from the pot and outer lid side. A rice cooker in which the space formed between the main body and another backing that is in contact with the plate and engaged with the heat sink is closed by contacting the upper frame located at the upper edge of the main body. .