JPS63102725A - Electric coffee brewer - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electric coffee brewer for automatically and continuously grinding coffee beans and extracting coffee liquid.

BACKGROUND OF THE INVENTION In general, this type of electric coffee boiler is disclosed in Japanese Utility Model Application No.
The configuration was as shown in the figure.

That is, a motor 2 is disposed on the top of a main body 1 with a rotating shaft 3 facing vertically downward, a blade-like crushing body 4 is attached to an end of the rotating shaft 3, and the rotating shaft 3 is located below the motor 2. It penetrated from the upper part into the hopper 6 provided adjacent to the hopper 6 and extended to the vicinity of the bottom surface. Further, a basket 6 for storing coffee powder produced in the hopper 6 was provided below the hopper 6, and a container 7 for storing coffee liquid was provided below the basket 6. 8 is Mizuyu/
A heating pipe 1o is connected to the bottom of the water tank 8 via a reversal valve 9, and a heater (not shown) is attached to the heating pipe 1o. It made up body 11. Further, the heating pipe 10 was connected to a hot water supply vibrator 12, and a discharge port 13 at the tip of the hot water supply pipe 12 opened at the upper part of the hopper 4. These water tank 8, check valve 9, and heating vibrator 10. A hot water supply device 14 was composed of a heating element 11, a hot water supply pipe 12, and the like.

In the above configuration, the motor 2 is driven to rotate when grinding coffee beans and while hot water is being supplied from the hot water supply device 14 to the hopper 6 via the hot water supply pipe 12.

Problems to be Solved by the Invention However, in the conventional configuration described above, when coffee beans are ground in the hopper 6, the coffee powder or coffee beans stirred by the grinding body 4 is transferred to the hot water pipe located above the hopper 6. The discharge ports 13 of 12 are clogged, which causes problems such as a decrease in the amount of hot water supplied from the hot water supply device 14, or a problem in that the supply of hot water is blocked near the discharge ports 13. Further, while hot water is being supplied to the hopper 5, the crushing body 4 is driven to rotate, but most of the supplied hot water is sprinkled in the rotational circumferential direction of the crushing body 4, and as a result, the hopper 5 Some wholesalers left coffee powder attached to the top surface of the hopper, and the inside of the hopper 5 was not sufficiently cleaned.

The present invention solves the above-mentioned conventional problems, and aims to provide an electric coffee boiler that is highly reliable and easy to use.

Means for Solving the Problems In order to achieve the above object, the electric coffee boiler of the present invention includes a motor having a rotating shaft arranged in a substantially horizontal direction, and a machine that is rotationally driven by this motor and that grinds coffee beans. A grinding chamber surrounding a grinding body, a hopper for storing coffee beans, a basket for storing coffee powder made in the grinding chamber, a container for storing coffee liquid extracted in the basket, and a water heater. and opening the tip of the hot water pipe in the water heater at the top of the hopper,
A coffee bean grinding port communicating with the grinding chamber is provided at the bottom of the hopper, and an outlet having a plurality of small holes is further provided at the bottom of the grinding chamber.

According to the above structure, the coffee beans are ground in the grinding chamber, and the coffee powder or coffee bean grains produced here are agitated by the grinding body, but the hot water pipe of the water heater is opened at the top of the hopper. Therefore, the coffee powder etc. will not scatter from the coffee bean grinding inlet at the bottom of the hopper and will not clog the hot water pipe. In addition, when hot water is supplied, most of the hot water is sprayed in the circumferential direction of the grinding body, making it possible to remove coffee powder adhering to the top surface of the grinding chamber.
The hot water dripping from the top along the sides also makes it possible to remove coffee powder adhering to the sides.

, Example Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3.

In the figure, 15 is a main body, and on the upper part of this main body 16,
A motor 16 is provided with a rotating shaft 17 disposed in the horizontal direction, and a blade-like crushing body 18 is attached to the rotating shaft 1 of the parenthesis. This crushing body 18 is surrounded by a crushing chamber 19. Further, above the grinding chamber 19, a popper 20 for storing coffee beans is provided. A hopper lid 21 is provided at the upper opening of this hopper 20, and a steam hole 22 is formed in the hopper lid 21 of the parenthesis. A bean grinding inlet 23 that opens in the axial direction of the rotating shaft 17 is formed at the bottom of the hopper 20.
and the crushing room 19.

Further, at the bottom of the crushing chamber 19, there is an air outlet 2 having a plurality of small holes.
4 is disposed, and a basket 25 for storing coffee powder produced in the grinding chamber 19 is attached below the outlet 24.

A basket lid 26 is attached to the upper opening of the basket 26, and an extension body 27 and a lip body 28 are made of synthetic resin to prevent coffee powder from scattering outside the basket 25. It is integrally formed. Further, an extraction port 29 is formed at the bottom of the basket 25, and a filter 30 is installed inside the basket 26. Furthermore, a container 31 for storing coffee liquid extracted in the basket 26 is arranged below the basket 25. 32 is a water tank, and a water supply port 33 is formed at the bottom of the water tank 32, and a heating pipe 34 is connected to the water supply port 33 via a reverse valve (not shown). This heating pipe 34 is a heater (not shown)
The heating body 35 is integrally made of die-cast aluminum. Further, the heating pipe 34 is connected to a heating circulation pipe 37 via a waterway switching valve 36, and the selling end of the heating circulation pipe 37 opens into the water tank 32. A hot water supply pipe 38 is connected to the waterway switching valve 36, and the tip of the hot water supply pipe 38 is connected to a discharge port 39 on the upper side of the hopper 20.
is open. Further, the waterway switching valve 36 is connected to a timer 40.
The water tank 32 is connected to the heating pipe 34.
．． A water channel that supplies water to the water tank 32 again via the heating circulation pipe 37, and a heating pipe 34 from the water tank 32. This is for switching the waterway through which hot water is supplied to the hopper 20 via the hot water supply pipe 38. and the water tank 32. Heating pipe 34. Heating body 35. Waterway switching valve 36. A hot water supply device 41 is composed of a heating circulation pipe 37, a hot water supply pipe 38, and the like. Note that the motor 16 is also linked to the timer 40.

The operation of the above configuration will now be described.

First, the hopper lid 21 is removed, and a required amount of coffee beans is stored in the hopper 20 through the upper opening of the hopper 2o. Some of the coffee beans stored in the hopper 20 are stored in the grinding chamber 19 through the coffee bean grinding inlet 23. On the other hand, the required amount of water is supplied to the water tank 32. Next, the power is turned on, the timer 40 is operated, and the motor 16 is driven. The drive of the motor 1e rotates the grinding body 18, so that the coffee beans are ground by the grinding body 18 to produce coffee powder. The coffee powder is blown away by the grinder 18 in the rotational circumferential direction of the grinder 18 and is stored in the basket 26 through the outlet 24. As the grinding of coffee beans progresses in the grinding chamber 19, coffee beans are removed from the grinding chamber 19 from the hopper 20.
Coffee beans are supplied inside. When all the coffee beans have been ground, the timer 40 is activated to stop the motor 16, and then the heating element 36 of the water heater 41 is energized. When the water in the water tank 32 heated by the heating element 36 reaches a predetermined temperature or higher, the water channel switching valve 36 is activated and the heating pipe 34 is connected to the heating circulation pipe 3.
The waterway leading to A is switched to the waterway leading from the heating pipe 34 to the hot water supply pipe 38.

At the same time as this waterway switching valve 36 operates, the motor 1
6 is re-driven. Then, from the hot water pipe 38 to the discharge port 3
The hot water supplied into the hopper 20 via the coffee bean grinding port 23 is supplied to the grinding chamber 19 through the coffee bean grinding port 23, and most of the hot water is sprayed by the grinding body 18 in the rotational circumferential direction of the grinding body 18. This sprinkling water is applied to the air outlet 24 while removing the coffee powder adhering to the top or side surface of the inside of the grinding chamber 19.
Hot water is supplied into the basket 26, and coffee liquid is extracted in this basket 25, and this coffee liquid drips from the extraction port 29 and is stored in the container 31.

Therefore, according to this embodiment, the coffee beans are stored in the grinding chamber 19.
is crushed by the crushing body 18 in the crushing chamber 19.
The hopper 20, which has the outlet 39 of the hot water pipe 38 at the top, is connected to the coffee beans by the grinding inlet 23 opened horizontally at the bottom of the hopper 20. The coffee powder blown in the circumferential direction of the rotation of the hot water supply pipe 38
Never get stuck. In addition, the hot water supplied into the crushing chamber 19 by the crushing body 18 that is rotationally driven during hot water supply is most effectively sprayed in the rotational circumferential direction of the crushing body 18, so that it adheres to the inner wall surface of the crushing chamber 19. Hot water sprinkled on the top surface of the grinding chamber 19 drips along the sides, thereby effectively removing the coffee powder over the entire inner wall surface.

In this embodiment, the hot water supply pipe 38 is opened at the upper side surface of the hopper 20, but the hot water supply pipe 38 may be configured to face above the hopper 20.

Effects of the Invention As is clear from the description of the above embodiments, according to the present invention,
Coffee beans are crushed by a crushing body in a crushing chamber,
In addition, the coffee powder produced in this grinding chamber is mainly blown away in the circumferential direction of the rotation of the grinder, so it enters the hopper through the coffee bean grinding inlet that opens in the axial direction of the rotating shaft to which the grinder is attached, and then passes through the hopper. There is no chance that coffee powder will clog the outlet provided at the top of the machine.

This solves the problems of conventional methods, such as coffee powder etc. clogging the hot water supply pipe and preventing hot water from being supplied, or the connection part of the water heater due to the pressure inside the pipe such as the heating pipe during hot water supply. It is also possible to prevent defects from occurring in the product, and as a result, the reliability of the product can be improved.

In addition, the hot water supplied to the grinding chamber is sprayed by the grinding body in the rotational circumferential direction of the grinding body, so water can be sprinkled on the upper surface of the grinding chamber located in the rotational circumferential direction. By dripping hot water along the sides from the top surface, it becomes possible to remove the remaining coffee powder that has adhered to the inner wall surface of the grinding chamber. This prevents the equipment from becoming unsanitary and also makes it easier to clean the equipment.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a partially cutaway vertical sectional view of an electric coffee maker showing an embodiment of the present invention, Fig. 2 is a perspective view of the electric coffee maker, and Fig. The figure is a cross-sectional view of the electric coffee boiler, and FIG. 4 is a longitudinal cross-sectional view of the conventional electric coffee boiler. 18... Motor, 1 completed... Rotating shaft, 1
8...Crushing body, 19...Crushing chamber, 20
... Hopper, 23 ... Coffee bean grinding inlet, 24 ... Air outlet, 25 ... Basket, 31 ... Container, 38. ...Hot water pipe, 40...Hot water supply device. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
figure

Claims (1)

[Claims] a motor having a rotating shaft arranged in a substantially horizontal direction; a grinding chamber that is rotationally driven by the motor and surrounds a grinding body that grinds coffee beans; and a hopper that stores the coffee beans.
A basket for storing coffee powder produced in the grinding chamber, a container for storing coffee liquid extracted by the basket, and a hot water supply device, and the tip of a hot water pipe in the hot water supply device is opened in the upper part of the hopper. . An electric coffee boiler, wherein a coffee bean grinding inlet communicating with the grinding chamber is provided at the bottom of the hopper, and an outlet having a plurality of small holes is provided at the bottom of the grinding chamber.