JPS5849718Y2 - coffee boiler with coffee bean grinder - Google Patents

Description

[Detailed description of the invention] This invention is a coffee boiler with a coffee grinder that can be used both as a coffee grinder for grinding coffee beans and a coffee boiler for brewing coffee by pouring hot water into the ground coffee powder. It is related to vessels.

Generally, coffee is made by grinding coffee beans, placing the ground coffee powder on a recyclable filter such as cloth paper, pouring boiling water over it, brewing it, and filtering it through a filter to extract the coffee liquid. However, in the past, the coffee grinder for grinding coffee beans and the coffee brewer for making coffee by pouring boiling water over the ground coffee grounds were manufactured and sold separately, so these devices When making coffee using a coffee grinder, the ground coffee had to be transferred to a coffee brewing container.

A variety of conventional coffee grinders are manufactured and sold, but all of them have a grinding time that allows all types of coffee filtration (siphon type, percolator, manual cloth drip, paper hole drip, etc.) to be carried out. Since most types have methods of adjusting the length and roughness of the powder, it is generally difficult to grind in a way that is compatible with the filtration method, and it is difficult to provide delicious coffee.

Furthermore, when purchasing coffee powder to make coffee, the freshness of the coffee powder is said to be about one week, whereas that of coffee beans is about - months, which is a big difference in the shelf life.

For this reason, recently there has been a strong tendency to grind coffee beans at home in order to easily obtain delicious coffee at home.

Despite this current state of affairs, no consideration is given to the relationship between current coffee boilers and coffee grinders.

Furthermore, even after use, each instrument had to be stored individually, making handling extremely complicated.

The present invention eliminates the above-mentioned drawbacks of the conventional coffee grinder and coffee brewer, and is very easy to handle.
This coffee grinder is attached to a part of the upside-down upper body, with the aim of providing delicious coffee using coffee powder that matches the filtration method, and at a lower price than if purchased separately. The ground coffee powder is directly received by the coffee powder storage container and paper filter installed on the bottom, and the hot water produced in the heating section is sprinkled onto the coffee powder from the drip opening on the outer periphery of the coffee powder falling body. Coffee liquid is obtained by filtration using the paper filter or the like.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a water tank having a substantially inverted shape, and is connected to a heating pipe 3 via a check valve 2 .

Reference numeral 4 denotes a heating element, which is integrally molded with the heating pipe 3 by aluminum die-casting to constitute a heating section 6, and a thermostat 5 for controlling the supply of electricity to the heating heater 4 is attached to this heating section 6.

Reference numeral 7 denotes a base in which the heating section 6 is built-in. Reference numeral 9 denotes a coffee powder storage container to which a paper filter 8 is attached, and the coffee powder pulverized in the paper filter 8 is stored.

Reference numeral 11 denotes a bottle on which the coffee powder storage container 9 is placed, and a coffee liquid 12 is stored therein.

Reference numeral 13 denotes a coffee bean storage chamber disposed above the coffee powder storage container 9, in which coffee beans are stored.

15 is a lid of the coffee bean storage chamber 13.

A crushing section constituted by a rotary wheel 16 and external wheel teeth 17 is provided at the lower end opening of the coffee bean storage chamber 13.

19 is a case of a crushing section.

20 is a movable piece that opens and closes the lower end opening of the case 19; 21 is a sliding piece that guides this movable piece 20; 22 is a transmission piece; 23
is a time switch, 25 is a rotating cam, and 24 is an electric motor.

26 is a knob for the time switch 25, 27 is a grinding unit cover, 28 is a bearing for the electric motor, 29 is a spring that pulls the movable piece in a certain direction, 30 is a coffee powder drop barrel, 31 is a dripping port, and 32 is a movable piece stopper. 33 is a worm gear, 3
4 is the worm, and 35 is the upper body.

Next, the process of making coffee in the above configuration will be explained.

The amount of water corresponding to the amount of coffee to be obtained is put into a water tank 1 in advance, and more beans 14 than the required amount of coffee beans are put into the coffee bean storage chamber 13.

First, when the time switch knob 26 is set to the cup scale corresponding to the amount of water, the rotary cam 33 mounted coaxially with the shaft of the time switch 25 moves the movable piece 20 on the sliding piece 21 via the transmission piece 22. After that, the electric motor 24 is started.

The coffee beans 14 placed in the coffee bean storage chamber 13 are guided downward and guided between the rotary whisk 16 in the grinding section and the external molar teeth, where the coffee beans are ground into coffee powder 10 and sent to the coffee powder drop barrel. The coffee powder passes through the coffee powder container 30 and is deposited on an air-permeable filter such as a paper filter that has been set in advance in a coffee powder storage container.

Eventually, the time switch knob 26 reverses and reaches the position of the scale O, and the movable piece 20 of the opening/closing section is forcibly returned to its original position instantaneously by the movable piece tension spring 29.

At this time, the movable piece 20 applies an impact to the protrusion 32 for stopping the movable piece formed on the upper surface of the horizontal part of the upside-down upper body 35, causing the coffee powder falling body and its surrounding area to be affected when the coffee beans are crushed. The coffee powder that adheres to the machine falls due to the generation of static electricity.

It is desirable that this device operate at least before hot water starts dripping from the dripping port 31.

Almost at the same time as this operation, electricity is started to be applied to the heating heater 4, and in about 30 seconds to 1 minute, the water in the heating pipe is heated through the heating section 6 and becomes hot water, which is activated by the check valve 2 provided at the bottom of the water tank 1. Since the water cannot return to the water tank 1, it is poured from the dripping port 31 onto the coffee grounds.

At the same time, a pressure drop occurs in the heating pipe, so that the water stored in the water tank 1 flows into the heating pipe 3 through the check valve 2.

By repeating this process, the water becomes hot water one after another and falls from the drip opening 31.

Then, the coffee powder extract is filtered through a paper filter 8 or the like having air permeability, and becomes a coffee liquid 12, which is stored in the bottle 11.

In this case, let's talk about the case where hot water is allowed to fall from the drip opening with the coffee powder still attached.

In this case, a large amount of coffee powder is attached to the coffee powder drop body and its surroundings, so the attached coffee powder absorbs enough steam generated from the hot water, increasing the degree of adhesion and boiling the next coffee as it is. At that time, the layer of adhesion increases until it becomes impossible to fall, or it may fall due to the slightest impact due to its weight, contaminating the surrounding area and becoming unpleasant. Defects such as odor generation, contamination due to adhesion of coffee powder, and damage occur.

As described above, according to the present invention, by providing a convex portion on the upper surface of the horizontal portion of the upside-down upper body, the movable piece of the opening/closing portion collides with the movable piece of the opening/closing portion, thereby making it possible to inexpensively and reliably prevent the adhesion of coffee powder. It is possible to prevent defects such as the following, and is of great practical value.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of a coffee boiler showing an embodiment of the present invention, Fig. 2 is a top view of the same coffee boiler with the grinding part cover removed, and Fig. 3 is a top view of the same coffee boiler with the grinding section cover removed. It is a top view of a container. 3... Heating pipe, 6... Heating section, 9
...Coffee powder storage container, 11...Bottle, 15...Coffee bean storage chamber, 16...
...Rotary tooth, 17...External tooth, 20...
...Movable piece, 25...Time switch, 3
2... Convex part for movable single stop, 35...
upper body

Claims (1)

[Scope of utility model registration request] An upper body formed in an inverted shape with a tank section for storing water, a heating section that is equipped with an electric heater to guide and heat the water in the tank section, and a horizontal lower surface of the upper body that supplies the heated hot water. A coffee boiler comprising a water guide pipe and a spout, a coffee powder storage container on the lower surface of the spout, and a bottle placed on the heating section to receive coffee liquid filtered in the storage container. The upper body has a coffee bean storage chamber and a supply chamber on the horizontal upper surface thereof, and includes a crushing member for crushing coffee beans, an electric motor for driving the crushing member, and a time switch for crushing the required amount of coffee beans. The opening between the coffee bean grinding section and the coffee powder storage container is opened when the time switch drives the electric motor in conjunction with the rotation or sliding operation of the time switch, and is closed when the water is heated. A convex part is provided from the horizontal upper surface of the upside-down upper body to be used as a contact point for the movable piece, and the impact of the contact causes coffee powder adhering to the coffee beans to fall and be removed due to static electricity when the coffee beans are ground. Coffee boiler with coffee bean grinder.