JP-2026075016-A - Alcohol rice cooker
Abstract
[Problem] To provide an alcohol stove specifically designed for cooking rice, using fuel alcohol. [Solution] An alcohol rice cooker characterized by having five grooves on the outer circumference of the bottom of a cylindrical A-cup section to form the deepest part, multiple four simmering nozzles in the central part of the bottom of the A-cup section, a C-cap section for holding fuel for simmering located below the A-cup section, the C-cap section being sized to fit within the five grooves on the outer circumference of the A-cup section, a bowl-shaped B-lid attached to the top of the A-cup section, and multiple three high-power nozzles on the circumference of the side of the A-cup section. [Selection Diagram] Figure 1
Inventors
- 西村 浩利
Assignees
- 西村 浩利
Dates
- Publication Date
- 20260507
- Application Date
- 20241021
Claims (2)
- This alcohol rice cooker features a cylindrical A-cup section with five grooves on the outer circumference of the bottom, forming the deepest part; multiple four simmering nozzles in the center of the bottom of the A-cup section; a C-cap section for holding fuel for simmering located below the A-cup section, with the C-cap section being sized to fit within the five grooves on the outer circumference of the A-cup section; a bowl-shaped B-lid attached to the top of the A-cup section; and multiple three high-power nozzles on the circumference of the side of the A-cup section.
- The alcohol rice cooker according to claim 1, characterized in that the A cup portion is covered with the D protective cup.
Description
This invention relates to an alcohol stove specifically designed for cooking rice, utilizing fuel alcohol. There have been many conventional heating and cooking appliances that utilize fuel alcohol. These include those designed to maintain a stable and strong flame as much as possible from ignition until it goes out, as described in Patent Document 1, and those that manually restrict the supply of oxygen by blocking the opening of the fuel during combustion, as described in Patent Document 2. Utility Model Registration No. 3152559Utility Model Registration No. 3083207 Cross-sectional view of the present inventionPlan view of the present inventionCross-sectional view showing the state of combustion at high heat according to the present invention.Cross-sectional view showing the state of combustion at medium heat according to the present invention.A cross-sectional view showing the preheating process for transitioning to the low-heat state of this invention.A cross-sectional view showing the shape of the bottom of cup A necessary for achieving preheating to transition to simmering in the present invention.Cross-sectional view showing the state of combustion at low heat according to the present invention. Embodiments of the present invention will be described below. The thickness of the cylindrical A-cup section is uniform throughout, with five grooves on the outer circumference of the bottom forming the deepest part, and the central part is flat or curves upwards and rises. Multiple nozzles for simmering are provided in the central part of the bottom of the A-cup section. Preferably, three nozzles are provided in a straight line: one in the center with a diameter of 1.5 mm, and two on either side with diameters of 1.0 mm and 0.5 mm, respectively. Below the A-cup section, there is a C-cap section for holding fuel for simmering. The C-cap section is cylindrical in shape, sized to fit within the five grooves on the outer circumference of the A-cup section. A bowl-shaped lid B is attached to the top of the cup section A. The opening of this bowl-shaped lid corresponds to the first opening 1. The bottom of this lid B has holes all over it, and these holes correspond to the second opening of the cup section A. Multiple high-power nozzles are provided on the circumference of the side surface approximately midway between the first and second openings of the cup section. Since the area of the C cap is slightly smaller compared to the overall area, for safety reasons, a D protective cup, which is the same size as the A cup, is placed underneath the A cup. The present invention has the configuration described above. When using this invention, place the rinsed rice and an appropriate amount of water in a pot, close the lid, and let it soak for at least 30 minutes. During this time, the tank is filled with alcohol for fuel. When filling with alcohol, first pour it in through the simmer nozzle (number 4) at the top of the C-cap until the C-cap is full, then continue filling with fuel up to about halfway between the second opening (number 2) and the high-power nozzle (number 3). The present invention is installed in the center of the trivet. Light the fuel alcohol and place the pot containing the rice on the trivet. The following describes the changes in the combustion state specifically for rice cooking, which are a key feature of this invention. Assuming that commercially available fuel alcohols have slight differences in their composition, such as the ratio of methanol and ethanol, their approximate boiling point is around 70 degrees Celsius, and their volume increases by approximately 400 times when vaporized. Alcohol used as fuel burns as a vaporized gas. The state immediately after ignition is explained below, referring to Figure 3. The fuel level is located approximately midway between the second opening (2) and the high-power injection port (3) in the A-cup section. If you ignite it in this state, the flame will initially rise inside lid B. The state in which flames rise from inside lid B immediately after ignition is called preheating, which is necessary to transition to a high flame. Eventually, the temperature of the fuel itself rises and exceeds its boiling point of 70 degrees Celsius, causing it to vaporize and expand 400 times in volume. This gas is then forcefully ejected from the three high-power nozzles around the A-cup section, where it ignites and a powerful flame erupts. Under high heat conditions, fuel consumption is rapid, so the fuel level reaches the height of the second opening in a relatively short time. The high heat setting lasts for approximately one minute, including the preheating time. Refer to Figure 4 and explain as follows. When the fuel level falls below the second opening, flames will begin to erupt from the large second opening in the center, rather than from the small third high-power nozzle at the top. This is done over medium heat for about 7 or 8 minutes from the moment the heat is