JPS6329464Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a coffee brewer that performs the entire process from grinding coffee beans to dispensing coffee liquid by supplying hot water.

(b) Prior art This type of coffee boiler in the past has a case 1, as seen in Japanese Patent Application Laid-Open No. 54-70170.
Since the lower surface of the lid 28 of 9 is flat, the coffee beans that have been lifted up by the cutter 25 do not come down easily, and the coffee beans that have been thrown up have less opportunity to be crushed by the cutter 25, and on the contrary, the cutter 25 has less opportunity to crush the coffee beans. Coffee beans around 25 are crushed many times by cutter 25 and become finer than necessary.
Overall, the crushed particles of the coffee powder were non-uniform, resulting in the extraction of a coffee liquid with a poor flavor.

In addition, since the supplied hot water is dripped from above the cutter 25, the shaft cylinder portion 21 and the bearing metal 25 are
There were drawbacks such as hot water entering the coffee powder and having an adverse effect on electrical components such as the motor 13, and the cutter 25 getting in the way and preventing hot water from being uniformly supplied over the coffee powder.

(c) Purpose of the invention The purpose of the invention is to forcibly push down the coffee beans that fly up while the coffee beans are being ground, so that all the coffee beans are evenly ground by the cutter.

(d) Structure of the invention The structure of the invention includes an upper case having a cutter for grinding coffee beans and a sieve plate for sieving the ground powder downward, and a case that is engaged with the lower part of the upper case and has an open top surface. a lower case in which a filter is disposed, a diffusion gutter disposed on the lower surface of the sieve plate, a lid body that closes the upper opening of the upper case and has a collision wall protruding from its lower surface, and the cutter. It is composed of a motor that rotates and drives the water, a tank that stores water, and a heating device that heats the water from the tank and supplies hot water to the diffusion gutter.

(E) Embodiment 1 is a coffee boiler main body, which includes a base 3 in which a heater 2 is installed, a tank 4 provided on the top surface of the base 3 for storing water, and a tank 4 installed in parallel with the tank 4. It consists of a mounting table 6, etc., which is equipped with a motor 5 inside. An opening 7 is formed on the surface of the base 3 located above the heater 2, so that a decanter 8 for receiving coffee liquid is directly placed on the upper surface of the heater 2. The upper opening of the decanter 8 is opened and closed by a lid 9, and a cutout 10 is formed in a portion of the lid 9 so that a portion of the decanter 8 is always open. The upper opening of the tank 4 is opened and closed by a water lid 11. A hot water supply pipe 13 is connected to the lower part of the tank 4 via a check valve 12. The hot water supply pipe 13 is wound around the heater 2 in the middle, stands upright along the tank 4, and is bent downward with an end opening 14 facing the outside. The drive shaft 15 of the motor 5 is exposed to the outside from the top surface of the mounting table 6, and has a first shaft at its tip.
A joint 16 is provided. A lower case 17 is detachably provided on the upper surface of the mounting table 6. The lower case 17 has a substantially cylindrical shape, and has an open top surface and a cylindrical insertion tube 1 with a small diameter in the center of the bottom surface.
8 has been launched and formed. A knob 19 is integrally formed on the outer side of the lower case 17, and a supply port 20 facing the notch 10 is formed in the knob 19. Said lower case 1
Inside the filter 7, a cylindrical filter 21 with an open top is removably disposed. A through-tube 22 is integrally formed in the center of the filter 21 so as to cover the through-tube 18, and a lever 23 is provided at a suitable location.
is formed. A cylindrical upper case 24 with an open upper surface is tightly disposed on the upper surface of the lower case 17 so as to be removable. Said upper case 2
A sieve plate 2 with a plurality of through holes 25 bored in the bottom of the plate 4.
6 is installed. The sieve plate 26 has a rotating shaft 2.
7 is rotatably attached, and a second joint 2 that engages with the first joint 16 is attached to the lower end of the rotating shaft 27.
8, and a cutter 29 is provided at the upper end. The cutter 29 has a blade 30 bent slightly downward.
is formed. A radial-shaped diffusion gutter 33 is engaged with the lower surface of the sieve plate 26. The diffusion gutter 33
An engaging claw 34 that engages with the sieve plate 26 is formed in the sieve plate 26, and a water sprinkling hole 35 is formed at a suitable location, and an inflow opening 36 is arranged to face the end opening 14 of the hot water supply pipe 13. The through hole 25 formed in the sieve plate 26 is connected to the insertion tube 18 of the lower case 17.
It is positioned outward from the opening. 3
Reference numeral 8 denotes a lid body that closes the upper opening of the upper case 24, and has a locking edge 40 that locks on the upper opening edge and suction holes 41 that are bored in the radial direction.
Between the rows of the suction holes 41, three rows of collision walls 42 having a V-shaped cross section and bulging downward are formed to protrude in the radial direction.

To explain the operation of this configuration, a desired amount of coffee beans is stored in the upper case 24 and a desired amount of water is stored in the tank 4, respectively, and then a power switch (not shown) is closed. Then, first, the motor 5 is energized and the cutter 29 is rotated to crush the coffee beans. When the time for completing this grinding has elapsed, the power to the motor 5 is automatically stopped, and the power to the heater 2 is turned on. By energizing the heater 2, hot water is supplied in a normal drip manner.
When the cutter 29 is driven, the coffee powder falls and accumulates in the filter 21 through the through holes 25 of the sieve plate 26. Hot water is supplied dropwise to the coffee powder from the hot water supply pipe 13 via the diffusion gutter 33. When the hot water is dripped onto the coffee powder, it is filtered and becomes coffee liquid, which is stored in the decanter 8 through the supply port 20.

When grinding the coffee beans mentioned above, cutter 2
The coffee beans thrown up by 9 hit the collision wall 4
2, 42, 42 and is forcibly dropped downward, turning into coffee powder and passing through the holes 2 of the sieve plate 26.
5 and is integrated into the filter 21. That is, due to the presence of the collision walls 42, 42, 42, the coffee beans that have flown up are caused to fall downward, and new coffee beans are then flown up, and the upper case 24 is constantly
Inside the filter 21, the coffee powder rotates smoothly and is evenly ground with a cutter to form coffee powder with uniform particles, which falls and accumulates inside the filter 21.

At this time, since the blades 30 are formed on the cutter 29, air is forcibly sucked in from the outside through the suction port 41, and the coffee powder after being ground by the cutter 29 is forcibly sucked in by this suction air. The coffee powder is then sent into the filter 21 through the through hole 25 and ground by the cutter 29 many times to become uniform particles of coffee powder, and since it is forced into the filter 21, the grinding time is shortened.

Furthermore, since the hot water is not supplied from above the cutter 29 but directly into the filter 21, it is possible to prevent uneven supply of hot water by the cutter 29, deterioration of taste, or hot water intrusion into electrical parts as in the conventional case. I can do it.

(f) Effects of the invention Since the invention is constructed as described above,
The coffee beans stored in the upper case are uniformly ground by the cutter, and coffee powder with uniform particles can be obtained on the filter.

Furthermore, since hot water is supplied directly to the coffee powder on the filter, rather than being supplied from above the cutter, deterioration of the taste and intrusion of hot water into electrical components can be prevented.

[Brief explanation of the drawing]

Figure 1 is a schematic cross-sectional view of the coffee brewer of the present invention;
FIG. 2 is an enlarged sectional view of the main part of FIG. 1, and FIG. 3 is a perspective view of the lid. 17...Lower case, 21...Filter, 24
... Upper case, 26 ... Sieve plate, 29 ... Cutter, 38 ... Lid body, 42 ... Collision wall.

Claims (1)

[Scope of utility model registration request] an upper case having a cutter for crushing coffee beans and a sieve plate for sieving the crushed powder downward;
a lower case that is engaged with the lower part of the upper case and has an open upper surface and a filter disposed therein; a diffusion gutter that is disposed on the lower surface of the sieve plate; and a lower case that closes the upper opening of the upper case and has a lower surface. The lid body has a protruding collision wall formed thereon, a motor for rotationally driving the cutter, a tank for storing water, and a heating device for heating water from the tank and supplying hot water to the diffusion gutter. A distinctive coffee brewer.