JPS6326100Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rice cooker in which an outer lid that closes the mouth of a protective container and an inner lid that closes the mouth of a pot housed in the protective container are attached to the handle.

Conventionally, in a rice cooker that cooks rice by storing a pot in a protective container, an outer lid that closes the mouth of the protective container and an inner lid that closes the mouth of the pot are attached to a handle. However, although some inner lids are removably installed inside the outer lid, some outer lids are integrally formed with a handle that is rotatably attached to a hinge at one end, or are fixed to the handle. Because of this, there was a drawback that the outer lid could not be easily cleaned.

In order to eliminate the drawbacks of the conventional example, the present invention has a hole in the center through which the presser bar for pressing the inner lid against the mouth of the pot passes through, and a groove into which the handle is inserted is formed on the outer wall surface. To provide a rice cooker in which a recessed outer lid can be detachably attached to a handle. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 to 4 show the structure of an embodiment of the present invention, in which 1 is a cylindrical side plate 1 that covers the peripheral wall.
a, an annular lower frame 1b that covers the lower corner, and a disc-shaped back plate 1c that covers the bottom. Lower frame 1b wrapped around the lower end of 1a
It is screwed together with the legs 3 to the lower surface of the . 4 is a protective container installed inside outer case 1, 5 is outer case 1
and an upper frame for heat insulation attached to the upper end of the protective container 4; 6 is a rice cooking heater provided on the bottom inner wall surface of the protective container 4; 7 is a heat-retaining heater wrapped around the upper outer circumferential wall surface of the protective container 4; 8 is a Thermostat 9 is a micro switch 10 installed at the center of the inner wall of the bottom of the protective container 4.
One end of the switch lever 11 of the switch plate 9 attached to the lower part of the outer case 1 is connected to the thermostat 8, and the other end protruding outward from the outer case 1 is a switch mounting plate to which a switch lever 11 and a switch lever 11 are attached. A switch button 12 is attached. 13 is a rice cooking lamp 14, a warming lamp 1
5, etc., and a display board that covers the switch mounting plate 9 with the switch button 12 protruding;
16 is a decorative plate that covers the mounting portions of the rice cooking lamp 14, warming lamp 15, etc. on the display board 13; 17 is an outer case 1;
18 is a press ring (see Fig. 2) which is integrally formed with a hinge 19 and a hook receiver 20, and this press ring 18 is further attached to the upper end surface of the upper frame 5. The press ring 18 and the upper frame 5 may be an integral part. 2
Reference numeral 1 designates a pot having an outwardly expanding step 21a on its upper edge, and the pot 21 is housed in the protective container 4 with the step 21a mounted on the press ring 18. 22
23 is an inner lid, and 23 is a gasket made of an elastic material attached to the peripheral edge of the inner lid 22 that presses toward the step 21a of the pot 21. A notch 23a is provided in the circumferential direction for better adhesion. 2
4 is a pressure regulating valve with a weight 24b attached to a nozzle 24a inserted through the inner lid 22; 25 is an annular coupling rubber attached to the center of the inner lid 22; 26
is an outer lid that closes the mouth of the protective container 4, and this outer lid 26
A hole 27 for steam release is bored in the center of the
Further, a mounting shaft 29 is provided in a protruding manner in a groove 28 recessed on the outer wall surface of the outer cover 26 (see FIG. 3). 3
0 is a heat insulating material filled in the outer cover 26, and 31 is a handle rotatably attached to the hinge 19 by a pin 32 fitted into a pin insertion hole provided at one end and a pin insertion hole provided in the hinge 19. A presser bar 33 for attaching the inner lid 22 to the tip is protruded from the center of the lower end surface of the handle 31, and annular attachment rubbers 34 are attached to both sides of the presser bar 33. 35
is a lid heater installed inside the cavity at the tip of the presser rod 33;
36 is a hook rotatably attached to the other end of the handle 31 by a pin 37; 38 is a spring that biases the hook 36 in the direction in which the hook 36 engages with the hook receiver 20 (counterclockwise in the figure); 39 is a hook button provided at one end of the hook 36.

In this embodiment configured as described above, first, the presser bar 33 is passed through the hole 27, the handle 31 is inserted into the groove 28, and the mounting shaft 29 is fitted into the mounting rubber 34, so that the outer cover 26 is attached to the handle 31. When the presser rod 33 is attached and the tip of the presser bar 33 is fitted into the coupling cushion rubber 25, the inner cover 22 is attached to the inside of the outer cover 26. Normally, the outer cover 26 and the inner cover 22 are attached to the handle 31. Use when installed. Next, the pot 21 containing an appropriate amount of rice and water is placed in the protective container 4, and the handle 3
When the hook 36 is hooked to the hook receiver 20 by pressing 1, the opening of the protective container 4 is closed by the outer lid 26 whose lower edge abuts against the upper frame 5, and the press ring 18
The mouth of the pot 21 on which the stepped portion 21a is mounted is sandwiched and crimped between the inner lid 22 that presses toward the stepped portion 21a, and the stepped portion 21a of the pot 21 and the peripheral edge of the inner lid 22. It is sealed by a gasket 23. When the switch button 12 is pressed, the magnet (not shown) inside the thermostat 8 pushed up by the switch lever 11 is attracted to the ferrite (not shown), and the micro switch 10 is held in the closed state. , a rice cooking heater 6, a heat retention heater 7, and a lid heater 3 connected in series.
5 and their heaters 6, 7 and 35
generates heat and starts cooking rice. When the temperature of the rice and water heated by the rice cooking heater 6 rises and steam is generated, the air pressure inside the pot 21 increases, and the steam flows between the pot 21 and the inner lid 22 and from the pressure regulating valve 24. The pot 21 tries to escape, but the gasket 23 seals the space between the pot 21 and the inner lid 22, and the pressure regulating valve 24 is closed by the weight 24b.
The pressure inside the pot 21 increases further, and the boiling point of the water in the pot 21 also increases. However, if the atmospheric pressure inside the pot 21 exceeds the set value, for example 0.3Kg/cm ² , the weight 24b
is pushed up and steam is discharged from the pressure regulating valve 24, and when it exceeds the set value, the weight 24b is lowered and steam is no longer discharged from the pressure regulating valve 24, so the pressure inside the pot 21 is maintained constant. , cooking continues. When the water is absorbed by the rice and the temperature at the bottom of the pot 21 exceeds the set value, the magnet in the thermostat 8 separates from the ferrite.
When the switch lever 11 is pushed down and the micro switch 10 is turned off, electricity is applied to the heat-retaining heater 7 and the lid heater 35 which are connected in parallel, and these heaters 7 and 35 generate heat to prevent the cooked rice from cooling down. Keep warm.

As explained above, according to the present invention, since the outer cover is detachably attached to the handle,
This has the advantage that the outer cover can be easily cleaned. In addition, rice cookers with a handle recessed into the groove and a flat top surface of the outer lid have a smaller outer box than rice cookers with a handle that protrudes from the top surface of the outer lid, which reduces manufacturing costs and shipping costs for the box. The price can be lowered, and a rice cooker with a flat top has the advantage of being shaped like a rice bowl.

[Brief explanation of drawings]

Figure 1 is a central sectional view of one embodiment of the present invention;
The figure is a plan view of an embodiment of the present invention with the handle removed, Figure 3 is a perspective view of the outer cover of the present invention, and Figure 4 is a state of an embodiment of the present invention with the handle removed from the outer cover. FIG. 1... Outer case, 4... Protective container, 5... Upper frame, 6... Rice cooking heater, 7... Heat retention heater, 21
...Pot, 21a...Step part, 22...Inner lid, 23...
... Gasket, 25 ... Combined cushion rubber, 2
6... Outer lid, 27... Hole, 28... Groove, 29...
Mounting shaft, 30... Insulation material, 31... Handle, 3
3... Presser bar, 34... Mounting rubber, 35... Lid heater.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a rice cooker in which an outer lid that closes the mouth of a protective container and an inner lid that closes the mouth of a pot housed in the protective container are attached to the handle, the inner lid is attached to the tip. the handle having a presser bar protruding from the center thereof; and the outer cover having a hole in the center for passing the presser bar through, and a groove recessed in the outer wall surface for the handle to be inserted into. A rice cooker comprising: the outer lid being detachably attached to the handle. (2) The rice cooker according to claim (1), wherein the presser bar has a lid heater built into its tip.