JPS6316123B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooking machine that uses the principle of a pressure cooker to quickly steam sticky rice to make sticky rice, a so-called mochi making machine.

Conventionally, in this type of cooking machine, as shown in FIG. 2, the boiler 3A was made of aluminum die-casting, and the heater 7A was a sheathed heater. Since this boiler gets hot and boils water, if the aluminum base is left exposed, it will rust, which is not good from a sanitary or aesthetic point of view, so generally the inner surface is made of aluminum. Previously, resin coatings were applied, but this was a cause of high costs. In addition, conventionally, a sheathed heater was used for heater 7A, so the method of installing the heater was difficult, and methods such as casting or caulking were used, but this resulted in poor thermal efficiency and the heater was difficult to install. There were many problems such as hot water only boiling in the surrounding area. Furthermore, in conventional cooking machines, as shown in Figure 2, in addition to the boiler 3A, the pressure vessel 8A and the pressure lid 12A are also made of aluminum die-casting, aluminum casting, etc., and generally the boiler 3A and the pressure vessel It was made in one piece with 8A. However, such an integrated structure has the disadvantage that the use of the cooking machine is restricted and it is difficult to share the cooking machine with a general mochi making machine.

It is an object of the present invention to provide a cooking machine that eliminates the drawbacks of the prior art described above, is inexpensive and easy to manufacture, has a good boiler thermal efficiency, and can share parts with a general mochi making machine. In order to achieve this object, the present invention makes a boiler by pressing aluminum, press-fits and fixes a separate metal housing made of aluminum die-casting into the cylindrical part, and connects the heater between the flange part and the bottom of the boiler. The inner surface of the boiler is anodized. In addition, the pressure vessel can be made by pressing the same way as the boiler, and it can be formed integrally with the boiler via a gasket, and can be used as a pressure cooker by covering it with a pressure lid. It can also be used as a rice cake making machine.

An embodiment of the present invention will be described below with reference to FIG. In the figure, a panel 2 is provided above the main case 1 made of iron plate, and the opening of this panel 2 has a pressure vessel 8 formed by pressing an aluminum plate with a press.
is listed. The bottom of the pressure vessel 8 is open, and the opening has approximately the same size as the opening at the top of the boiler 3, which is formed by pressing an aluminum plate. At the upper step 28 of the boiler 3, the pressure vessel 8 and the boiler 3 are integrally fixed with a rivet 11 via a packing 10 to maintain airtightness. On the other hand, a metal housing 5 made of aluminum die-casting is press-fitted into a cylindrical part 4 in the center of the boiler 3, and a rotating shaft 22 passes through it with a seal 26 and a bearing (not shown). There is. This rotating shaft portion is kept airtight by a seal 26. Further, a flange portion 6 is provided at the lower part of the metal housing 5, and a ring-shaped planar heater 7 is sandwiched between the flange portion 6 and the bottom of the boiler 3. In addition, at the bottom of this flange portion 6,
A fixed object and a thermostat (not shown) are fixed to the chassis 20. Further, a box 17 is placed inside the pressure vessel 8, and is detachably attached to a box 17 fixed to the bottom of the box 17 via a gasket 18. Reference numeral 9 denotes a flange provided at the upper opening of the pressure vessel 8, 12 a pressure lid placed over the upper part of the pressure vessel 8, 13 a pressure regulating port provided in the center of the pressure lid 12, and 14 a pressure regulating valve. Reference numeral 15 denotes a pressure gasket having a substantially U-shaped cross section and fixed to a U-shaped portion 29 provided at the lower outer periphery of the pressure lid 12 and having a substantially U-shaped cross section. The upper part of the cross-shaped part of the pressure packing 15 is in contact with the inner wall of the pressure lid 12, and the lower part is in contact with the flange 9 of the pressure vessel 8. They are in contact with each other with a gap of . 16 is the handle,
Reference numeral 19 denotes a blade detachably attached to the rotating shaft 22 protruding into the house 17. 21 is the motor, 2
3 is a large pulley, 24 is a small pulley, and 25 is a belt, and the motor 21 is powered by the small pulley 2.
4. It is transmitted to the rotating shaft 22 via the belt 25 and the large pulley 23 to rotate the blade 19. 27
is a hook part of the pressure lid 12.

The function of the cooking machine configured as described above will be explained below. In Figure 1, first,
A specified amount of steaming water is put into the boiler 3, then the gasket 18 is attached to the stepped part 28, and the tank 17 is put into the pressure vessel 8 and fixed. Next, the blade 19 was fitted to the rotating shaft 22 protruding from the bottom of the chamber 17, and the glutinous rice, which had been soaked in water for about 30 minutes after washing, was drained and put into the chamber 17, and the pressure packing 15 was attached. The pressure lid 12 is put on, and the collar part 9 and the hook part 27 are aligned and fixed. Next, by setting a switch (not shown) to "steam", the heater 7 is energized to boil the water put in the boiler 3 and generate steam. This steam is introduced into the pan 17 through a small gap between the blade 19 and the pan 17, and increases the internal pressure in the pressure vessel 8 while steaming the glutinous rice. Then, when the pressure gradually increases and reaches a certain pressure, the pressure inside the pressure cooker is kept constant by the pressure regulating valve 14, and the temperature is also kept at a high temperature of around 120°C, so the sticky rice is steamed at high temperature and pressure. , steamed to a softness suitable for making sticky rice. In this case, with a general mochi making machine, after washing the rice,
It is necessary to soak it in water for more than an hour, but if you use a pressure cooker like in the present invention, it has the advantage that you only need to soak it in water for about 30 minutes.

Next, when the steaming is done, switch (not shown)
, lift the pressure regulating valve 14 and tilt it down to release the steam and lower the pressure in the pressure cooker. When the pressure in the pressure cooker becomes equal to the outside pressure, remove the pressure cover 12, turn the switch to "ON", and energize the motor 21. When the motor 21 is driven, the blades 19 rotate, and the glutinous rice is gradually kneaded from the periphery of the blades 19 to form sticky rice.

As explained above, according to the present invention, in the mochi making machine, (a) the boiler, pressure vessel, pressure lid, etc., which were conventionally made of aluminum die-casting or aluminum casting, are all made of aluminum plates except for a few parts. Since it is manufactured from a drawn product that has been drawn using a press, the manufacturing cost is low and the number of man-hours can be reduced.

(b) The boiler 3 and the pressure vessel 8 are integrally formed by crimping with the rivets 11 through the packing 10, making it possible to press them, reducing the number of man-hours, and eliminating the need for the general conventional type. When using a mochi making machine, a pressure lid 12 is placed on the pressure vessel 8.
It can be easily repurposed by stopping the .

(c) The boiler 3 is made into a press, the metal housing 5 is press-fitted into it, and the heater 7 is sandwiched between the flange part 6 of the metal housing 5 and the boiler 3, so that the heater installation method is changed. By simplifying the heater and making it planar, the entire bottom of the boiler can be heated, making it possible to increase thermal efficiency compared to conventional sheathed heaters.

(iv) If the inner surface of the boiler was conventionally made of aluminum die-casting, it would be necessary to coat it with a material such as fluorine resin, which would increase the cost. In this case, it is sufficient to perform alumite processing, and it is possible to provide an inexpensive product.

Effects such as this can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of an embodiment of a cooking machine according to the present invention, and FIG. 2 is a longitudinal sectional view of a conventional cooking machine. 1...Main case, 2...Panel, 3...Boiler,
4... Cylinder part, 5... Metal housing, 6... Flange part, 7... Heater, 8... Pressure vessel, 9... Flange part, 1
0...Puttlekin, 11...Rivet, 12...Pressure cover, 13...Pressure regulating port, 14...Pressure regulating valve, 15...Pressure seal, 17...Thin, 18...Puttlekin, 19...Blade, 20...Sheath, 21...Motor, 22 …Axis of rotation.

Claims (1)

[Claims] 1. A pressure vessel integrally formed with a boiler provided within the main body case, and a pressure vessel housed within the pressure vessel,
A pan that is removably attached to the upper step of the boiler, a rotating shaft that penetrates the inside of the boiler and protrudes into the pan, and a shaft that is detachably attached to the rotary shaft and placed inside the pan. A boiler having a cylindrical body with a bottom and a cylindrical part protruding inward from the bottom concentrically with the cylindrical surface of the main body in a cooking machine equipped with a pressure lid having a pressure regulating device on the top of the pressure vessel. is formed by press working, and includes a cylindrical portion with an outer diameter slightly larger than the inner diameter of the cylindrical portion, a flange portion perpendicular to the axis of the cylindrical portion, and an axial direction of the cylindrical portion through which the rotating shaft passes. A metal housing having a through hole extending to the bottom of the boiler is provided, and the metal housing having a seal and a bearing at its tip is press-fitted into the inside of the cylindrical portion, and the bottom of the boiler and the flange of the metal housing are connected to each other. A cooking machine characterized by having a planar heater sandwiched between them. 2. In the cooking machine according to claim 1, a pressure vessel having an opening at the bottom is attached to the top opening of the boiler via packing, so that the boiler and the pressure vessel are integrated. A cooking machine characterized by: