JPS6312822Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is driven by a motor, and stirs the roasted material by rotating connected rotary blades, and heats the roasting space with radiant heat from a heater and far-infrared heat rays. This invention relates to a roasting machine configured to roast grains such as coffee beans.

<Background and conventional technology> Traditionally, soybeans, sesame seeds, coffee beans, etc. have been roasted using a ceramic roaster for the former soybeans, and a wire roaster for sesame seeds. Currently, they are unable to roast coffee beans by hand, so they only offer roasted coffee beans. Soybeans must be mixed without interruption, and sesame seeds must be roasted by shaking the roaster constantly to avoid crackling. Especially when it came to coffee beans, it was said that only an expert could roast them. This is due to the fact that evenly roasted beans can only be roasted if heat can be applied evenly to the entire roasted object, such as beans. However, this method is extremely difficult and
This is proven by the fact that until now there has not been a small roasting machine that can roast perfectly.

In general, this kind of rotary blade roaster has a heater placed below the roasting plate to directly heat the roasting plate, a motor under the heater, and a motor shaft that heats the roasting plate directly. The heater penetrated through the center of the roasting plate, and rotary blades were fitted over the roasting plate to rotate and stir. The coffee beans, etc., were placed on the heated roasting plate and roasted directly at the temperature of the roasting plate.

<Problem that the invention aims to solve> Therefore, with this structure, heat does not spread evenly throughout the entire roasted object such as coffee beans, and only the parts that come into contact with the roasting plate are burnt, resulting in a problem with roasting. Unevenness appears in a very short time, and if the motor rotation speed is increased to prevent this from happening, it is necessary to speed up the stirring, and the roasted material accumulates on the outer periphery, which further worsens the stirring and increases the number of irregularities in roasting. Furthermore, since the roasting space is not heated, uniform roasting is impossible, and since the motor is located close to the heater, the motor overheats, burns out, and stops rotating.

This invention was developed in view of the above circumstances, including roasting plates, heaters,
The purpose is to facilitate uniform heating of the roasting space and stabilize roasting performance by optimizing the arrangement of the motor.

<Means for Solving the Problems> The present invention was developed by focusing on the above-mentioned problems, and its structure is such that a plurality of rotary blades are rotated on a roasting plate by a low-speed motor, This system is characterized by a structure in which coffee beans or the like are placed on a roasting plate and stirred evenly, and a heat source such as a heater is provided around the space above the roasting plate to uniformly heat the roasting space.

<Operation> According to the roasting machine according to the present invention having the configuration with the above-mentioned characteristics, when the upper case 3 is removed, the roasted beans are put between the rotary blades 5, and the low-speed motor 6 is rotated, The roasted product is rolled on 4 roasting plates and stirred evenly. Next, if you turn on the timer for heater 13, the radiant heat from heater 9 will irradiate the roasted product on the roasting plate, and it will roast evenly with stirring and the reflected heat from the 4 roasting plates. At the same time, the 9th heater also generates far-infrared hot air which has a synergistic effect with the 8th heater hot plate, and together with the radiant heat, the temperature inside the 2nd transparent outer shell becomes the optimum temperature for the roasting space. By maintaining heat and permeating the entire roasted product,
Furthermore, it can be roasted evenly. Further, the roasting time can be freely adjusted using a timer for the heater 13. Further, as shown in FIG. 2, a structure in which the heater is attached to the inner periphery of the outer shell to heat the roasting space to an appropriate temperature can also be applied.

<Effects of the invention> Therefore, according to the invention, (1) At the same time as even stirring by the rotary blade, radiant heat including far infrared rays from the heater and reflected heat from the roasting plate work synergistically to achieve even efficiency. It provides a quick temperature rise to the roasting space, making it easy to roast evenly.

(2) Also, the internal roasting status can be confirmed through the transparent outer shell.
(3) Furthermore, since the nine heaters heat the roasted material from the outside, unlike conventional roasters, the skin of the roasted material comes into direct contact with the heater and smoke is not produced. The flavor is not affected by smoke odor.

(4) In addition, it is fully applicable to roasting not only large grains such as coffee beans and soybeans, but also various small grains.

<Example> Next, an example of the present invention that can achieve the above objects will be described in detail based on the drawings (FIGS. 1 to 3).

In Figure 1, 1 is the main body case with 6 low-speed motors built inside, 4 roasting plates are placed on the top surface, and 5 rotary blades are inserted into the 11 shaft of the low-speed motor so that they rotate along the roasting plate. and stir the roasted material such as coffee beans on the roasting plate. 2 has a transparent outer body made of heat-resistant glass. 3 is an upper case with an 8-heater heating plate and 9 built-in heaters, and constitutes a structure in which roasted products are heated from the outside upper part. 13 is a heater timer, 14
is a switch for low speed motor. 2 Transparent outer body, 9
The roasting space is a space surrounded by heaters and containing five rotary blades.

Figure 2 shows an example in which a heater is attached to the inner periphery of the outer shell. 2 is a transparent outer shell with 8 heater hot plates attached to the inner periphery, and 9 heaters are built in to form a structure that heats roasted products from the periphery. ing.

Therefore, the third upper case is not equipped with a heater.

[Brief explanation of the drawing]

1 and 2 are longitudinal sectional views of the roasting machine according to the present invention, and FIG. 3 is a plan view of the rotor blade. 1... Main body case, 2... Transparent outer shell, 4... Roasting plate, 5... Rotating blade, 6... Low speed motor, 8...
Heater hot plate, 9... Heater.

Claims (1)

[Scope of utility model registration request] A roasting plate is placed on the upper surface of the main body case, a rotary blade that rotates to stir the roasted material is mounted on the roasting plate, and an outer shell and an upper case are placed on the main body case. A roasting space is formed inside the outer shell and the upper case above the attachment of the rotor blade, and the atmosphere in the roasting space is heated by a heater provided in the roasting space. roasting machine.