JPH041859Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electric coffee brewer having a coffee bean grinding function.

PRIOR ART Among conventional electric coffee boilers, there is a fully automatic coffee boiler that combines the coffee bean grinding function and the dripping function, and which automatically switches to the dripping function after grinding the coffee beans.
A configuration as shown in the figure is known. That is, it has a resin container 1 that is integrated with a coffee bean grinding chamber and a filtration chamber that extracts the coffee liquid and separates the extract and the residue. The extractor is equipped with a cutter 3 for separating the extract from the residue, and a filter 4 for separating the extract and the residue at the bottom. The upper opening of the container 1 is closed with a container lid 5 made of resin, and the container lid 5 is placed in the container 1 in a depressed state. Furthermore, after the coffee beans are ground by the cutter 3 in the container 1, the coffee beans are ground in the tank 6.
The water inside was heated by a hot plate 7, led to a discharge pipe 8, dispersed by the container lid 5, and poured into coffee powder to obtain coffee liquid.

Problems to be Solved by the Invention However, in this configuration, the container lid 5 is simply placed in the upper opening of the container 1, and there is no pressure from the upper part. Since the container 1 and the container lid 5 are made of resin, a gap is created between the container 1 and the container lid 5 due to deformation during resin molding, and when the coffee beans are ground, coffee powder can escape from this gap. container 1
It leaked outside and contaminated the vessel, floor, etc. Note that some improvement can be made by reducing the gap between the container 1 and the container lid 5, but in this case,
It becomes extremely difficult to attach and detach the container 1 and the container lid 5.
It was difficult to operate.

The present invention was developed to solve these conventional problems, and the purpose is to provide an electric coffee boiler that is easy to operate and does not stain the body or floor surface. It is something.

Means for Solving the Problems In order to solve the above problems, the present invention incorporates a cutter that is rotationally driven by a drive motor installed in the main body, and has a porous part in a part of the cylindrical peripheral wall. a raw material crushing chamber, a filtration chamber arranged in parallel so as to communicate with the raw material crushing chamber through a porous portion, a convex lid that closes an upper opening of the raw material crushing chamber, and a convex lid that closes an upper opening of the raw material crushing chamber, and a convex lid for supplying hot water to the filtration chamber. It has a heating element for pouring and a hot water supply device, a large diameter part is provided at the upper opening of the cylindrical raw material crushing chamber, and the lid is removably fitted and placed on this large diameter part. , The inner diameter of the lid is made larger than the inner diameter of the raw material crushing chamber at the portion where the raw material crushing chamber and the lid come into contact.

Effect According to the above configuration, the coffee beans ground in the raw material grinding chamber are blown toward the outer periphery and upward at the same time by the rotation of the cutter. For this reason, the coffee powder flows upward along the inner wall of the raw material grinding chamber, but since the inner diameter of the lid is larger than the inner diameter of the raw material grinding chamber, this flow of coffee powder causes the material grinding chamber to come into contact with the lid. There is no direct intrusion into the contact surface, and therefore there is no leakage from the gap between the raw material crushing chamber and the lid. Furthermore, once the coffee powder is crushed to an appropriate particle size, it is sequentially discharged from the porous part to the filtration chamber, so the crushed coffee powder is no longer stirred in the raw material grinding chamber for a long time, and as a result, the raw material Since there is no leakage from the contact surfaces and gaps between the grinding chamber and the lid, the fitting dimensions between the raw material grinding chamber and the lid no longer require precision, and therefore there is no problem in terms of operability. It is.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings. In FIGS. 1 and 2, reference numeral 11 denotes a main body. The upper part of this main body 11 houses a grinding filter container 12 which can be taken out and is used to grind coffee beans and extract coffee liquid, and the lower part contains coffee beans. It has a built-in drive motor 13 for crushing. The grinding and filtering container 12 contains a substantially cylindrical raw material grinding chamber 15 that has a built-in cutter 14 near the bottom, which is rotationally driven by a drive motor 13, and the coffee powder ground in the raw material grinding chamber 15, and extracts the coffee powder. The filtration chambers 16 are assembled in parallel, and the raw material crushing chamber 15 and the filtration chamber 16 communicate with each other via a porous portion 17 provided in a part of the peripheral wall of the raw material crushing chamber 15. Further, the bottom of the raw material crushing chamber 15 is formed into a mortar shape, and the porous portion 1
By arranging 7 so as to cut the circle drawn by the peripheral wall of the raw material grinding chamber 15, when grinding coffee beans,
When the coffee beans are appropriately stirred and have a suitable particle size, they are sequentially discharged from the porous portion 17 to the filtration chamber 16.

Reference numeral 18 denotes a lid of the crushing and filtering container 12, and this lid 18 has a substantially convex shape protruding upward on the side of the raw material crushing chamber 15, and is detachable from a large diameter portion 19 provided at the upper opening of the raw material crushing chamber 15. Fit and place freely.
Furthermore, at least the raw material crushing chamber 1 of this lid 18
5, the inner diameter of this lid 18 is made larger than the inner diameter of the raw material crushing chamber 15, and the raw material crushing chamber 15 has a lid 18 located inside the inner diameter of the lid 18 and protruding upward from the contact surface. A convex portion 27 is provided. Numeral 20 is a protrusion for speeding up the discharge of coffee powder, and a hot water receiver 21 is formed on the filtration chamber 16 side of the lid 18 for uniformly dispersing hot water into the coffee powder.

Reference numeral 22 denotes a main body lid for covering the upper surfaces of the raw material crushing chamber 15 and the filtration chamber 16. When the main body lid 22 is set on the main body 11, the protrusions 23 and 24 provided on the main body lid 22 cover the above-mentioned crushing and filtering container. 12
The cover 18 is in contact with the cover 18 of the cover 18.

After the coffee powder ground in the raw material grinding chamber 15 is discharged into the filtration chamber 16, the water in the heating pipe 25 introduced from the tank (not shown) is heated by the heating element 26 and boils. The hot water is discharged and supplied to the hot water receiver 21 by the steam pressure caused by the hot water, and the hot water is uniformly dispersed in the coffee powder from the hot water receiver 21 to extract coffee.

In this way, according to this embodiment, the raw material crushing chamber 15
When the coffee is ground inside the chamber, the coffee powder is blown to the outer periphery by the cutter 14 and at the same time is thrown upward. The inner diameter of the lid 18 is larger than the inner diameter of the raw material crushing chamber 15, and the raw material crushing chamber 15 is provided with a convex portion 27 that projects upward from the contact surface, so that the raw material crushing chamber 15 and the lid 18 are not in contact with each other. Coffee powder does not directly enter the contact area, but instead moves upward as shown by arrow A in FIG. Also, the lid 18
Since it is pressed down from above by the main body lid 22, no gap will be formed on the contact surface of the raw material grinding chamber 15, and therefore, there will be no intrusion of coffee powder. Furthermore, the coffee powder ground in the raw material grinding chamber 15 is sequentially discharged from the porous portion 17 to the filtration chamber 16 when it reaches an appropriate particle size, so that the coffee powder does not continue to be stirred in the raw material grinding chamber 15 for a long time. As a result, leakage from the contact surface between the raw material crushing chamber 15 and the lid 18 is also eliminated. In this way, there is no need for accuracy in the fitting dimensions between the raw material grinding chamber 15 and the lid 18, and therefore there is no problem in terms of operability, and there is no need to stain the vessel body or floor surface with coffee powder, etc. It will also disappear.

Effects of the invention As described above, according to the invention, the raw material crushing chamber has a built-in cutter and has a porous portion in a part of the cylindrical peripheral wall, and the raw material crushing chamber is communicated with the raw material crushing chamber through the porous portion. , a convex lid that closes the upper opening of the raw material crushing chamber, a heating element and a hot water supply device for pouring hot water into the filtration chamber, and the cylindrical raw material crushing A large-diameter portion is provided at the upper opening of the chamber, and a lid is removably fitted and placed on this large-diameter portion, and at the portion where the lid comes into contact with the raw material crushing chamber, the lid is inserted from the inner diameter of the raw material crushing chamber. Due to the large inner diameter of the coffee grinder, there is no possibility of coffee powder leaking from the raw material grinding chamber when coffee beans are ground, and as a result, the container body and floor surface are not contaminated with coffee powder, and the Since precision in fitting dimensions between the crushing chamber and the lid is not required, it is possible to obtain a lid with excellent operability.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an electric coffee maker according to an embodiment of the present invention, FIG. 2 is a sectional view of the same essential parts, and FIG. 3 is a sectional view of a conventional electric coffee maker. 11... Main body, 13... Drive motor, 14...
... cutter, 15 ... raw material crushing chamber, 16 ... filtration chamber, 17 ... porous section, 18 ... lid, 19 ... large diameter section, 26 ... heating element.

Claims (1)

[Scope of utility model registration request] A raw material crushing chamber has a built-in cutter that is rotationally driven by a drive motor installed in the main body, and has a porous part in a part of the cylindrical peripheral wall, and communicates with this raw material crushing chamber through the porous part. The cylindrical raw material crushing chamber has parallel filtration chambers, a convex lid that closes the upper opening of the raw material crushing chamber, a heating element and a hot water supply device for pouring hot water into the filtration chamber, and A large diameter portion is provided in the upper opening, and the lid is removably fitted and placed on the large diameter portion, and at least in a portion where the raw material crushing chamber and the lid contact,
An electric coffee boiler in which the inner diameter of the lid is larger than the inner diameter of the raw material grinding chamber.