JPS6017526B2 - coffee boiler - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a drip-type coffee boiler that greatly shortens the extraction time to quickly extract coffee and extracts only the effective ingredients from the coffee in a sufficiently swollen state. The aim is to obtain aromatic and delicious coffee.

In general, a drip coffee brewer heats water supplied from a water tank in a heating pipe, and uses the force of air bubbles and steam to raise the water in the pipe, and then pours water from above the basket into the coffee receiver. Coffee was obtained by discharging and dripping, and it had a structure with a single water pipe route.

The above-mentioned coffee boiler has a versatile 4- to 6-cup capacity (approximately 900 cc), but has been made compact for ease of use and economy, and has a heating capacity of approximately 10 cups. The volume and wattage were up to 600W.

Also, the discharge state was intermittent discharge in response to the repeated generation of steam pressure in the heating pipe, and the coffee extraction time required 10 minutes for the above-mentioned 4 to 6 cups.

When the hot water is discharged in an intermittent manner in this way, the temperature of the hot water poured into the coffee grounds drops during the pause in the intermittent discharge, and the coffee ingredients are extracted while the coffee grounds are not sufficiently swollen. As a result, the active ingredients in coffee could not be efficiently extracted.

Another disadvantage is that the extraction time is long, as the time required for the coffee grounds to soak in the hot water is long, so in addition to the active ingredients of the coffee, the flavors of the coffee particles are also extracted, making it impossible to obtain delicious coffee. Ta. Furthermore, the temperature of the hot water poured over the coffee grounds falls and the coffee particles do not swell sufficiently, resulting in insufficient air bubbles containing gases coming out of the coffee grounds, causing unnecessary components in the coffee to float outside of the air bubbles. Not only is it not possible to extract only the active ingredients, but also unnecessary ingredients are introduced into the coffee liquid, making it impossible to obtain delicious coffee. Here, as a solution to the above conventional problems,
Under the current configuration, it may be possible to try to increase the discharge speed by increasing the wattage of the heater, but simply increasing the wattage will cause the heater temperature to rise too much, so the heater will not work for a short period of time. It was broken due to use. Moreover, simply increasing the wattage value causes the heating element to overheat, and the discharge from the discharge section turns into steam, resulting in insufficient dripping of hot water onto the coffee grounds. Therefore, it has not been possible to increase the discharge speed within the conventional compact body shape. The present invention addresses the above-mentioned conventional drawbacks within the current vessel structure and improves the discharge condition to a continuous discharge condition to achieve the intended purpose.Examples of the present invention are attached below. This will be explained with reference to the drawings. In the figure, 1 is an upper container consisting of a water tank 2 and a canopy 3, 4 is a base on which the upper container 1 is fixed, and between the base 4 and the upper container canopy 3 is a coffee holder. Basket 5 for filtering powder
and a coffee liquid receiver 7 with a basket lid 6 placed thereon.

Reference numeral 8 is an aluminum die-cast heating element which is housed in the base 4 and is in contact with the coffee liquid receiver 7 with one side pressed against the heat insulating plate 9, and is equipped with a sheathed heater 10 and a heating pipe 11.

A heating element 12 is provided separately from the heating element 8, and similarly includes a sheathed heater 13 and a heating pipe 14.

One end of the heating pipes 1 1 and 14 provided on the two heating bodies 8 and 12 is connected to the water tank 2 with check valves 15 and 1.
6, and the ends of the ponds each pass through the inside of the upper container canopy 3 and are led to a discharge port 17 above the basket lid 6. In the above configuration, since the heating pipes 11 and 14 are heated by the respective heating bodies 8 and 12, the discharge operation is repeated separately without affecting the movements of the check valves 15 and 16.

Therefore, the discharge time is about twice the discharge speed of the conventional example in which one heating element is provided.

In addition, since the discharge channels are separate, the pouring of hot water from the discharge part to the coffee grounds cancels out the pause time of the discharge, resulting in a state closer to continuous discharge.

This can also be seen from the fact that the discharge speed is twice that of the subordinate. Furthermore, since the heating elements 8 and 12 are arranged separately, the temperature of the heaters 10 and 13 will not rise too much and the heaters will not break after being used for a short period of time.

Therefore, the wattage value can be increased compared to the secondary boiler, and the heating element will not be overheated by the heater, resulting in an increase in steam and insufficient dripping of hot water. In addition, the hot water dripping time is reduced to about 1/2 of the conventional one, and the discharge condition is more continuous than the conventional one, so the temperature of the hot water poured into the ground coffee decreases in less time. , the amount of discharge per hour increases, and the coffee powder becomes sufficiently fluffy. Therefore, the effective ingredients can be sufficiently extracted from the coffee particles. Furthermore, because the coffee particles are soaked in hot water for a short period of time, the taste and taste of the unpleasant substances inside the coffee particles are not extracted. Furthermore, since the coffee powder is sufficiently swollen, a sufficient amount of air bubbles containing gas from the coffee particles are generated, and these air bubbles are maintained uninterrupted by Renzatsu discharge, allowing unnecessary components to float outside of the air bubbles. No unnecessary ingredients will be mixed into the coffee liquid.

In addition, since the extraction time is reduced to the conventional 1'2 steepness, the temperature of the finished coffee decreases over time. Therefore, the heat retaining structure can be simplified from the conventional structure in which the heat retaining structure is provided from the heating body through the heat retaining plate.

As is clear from the above description, the coffee brewer of the present invention has the following effects.

1. Only the active ingredients can be quickly extracted from coffee particles using a compact conventional device configuration, allowing sufficient coffee to swell and quickly extracting in a short time.

Therefore, since bubbles containing gas are sufficiently generated, unnecessary components are not mixed into the coffee liquid, and delicious coffee with rich flavor can be obtained. 2. Easy to use for users as the extraction time is short.

3. The heat insulation structure is simplified.

[Brief explanation of the drawing]

The figure is a sectional view of a coffee sickle device showing one embodiment of the present invention. 2... Water tank, 5... Basket, 10, 13... Sheathed heater, 11, 14... Heating pipe, 15, 16
...Check valve, 17...Discharge port.

Claims (1)

[Claims] 1. In a coffee boiler equipped with a heating pipe connected at one end to a water tank and at the other end connected to a discharge pipe located above a coffee basket, and a heater for heating this heating pipe, a plurality of the heating pipes are connected. Coffee boiler provided.