JPS6213006B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for extracting coffee, etc., which allows the concentration of the extract to be easily set according to preference, and also allows the concentration to be easily adjusted during the extraction process. It is an object of the present invention to provide an extraction device that prevents leakage of residual extract from.

BACKGROUND ART In recent years, coffee extraction devices are required not only to have the extraction performance of the device itself, but also to have a function that allows the user to easily set the desired extraction concentration.

Conventionally, as an extraction device that can adjust the concentration, a lid is placed on the basket, and by changing the position of the dripping hole in the lid, the concentration can be adjusted by changing the sprinkling position of the hot water dripping into the basket. something is known. However, it has not always been possible to achieve a satisfactory concentration adjustment due to the supply speed of hot water, the amount of hot water supplied, uneven distribution of coffee powder, etc. Another method was to provide a water stop valve below the basket and adjust the concentration by changing the opening area of this water stop valve. However, in this case, it was impossible to change the concentration adjustment during extraction, which sometimes resulted in failure. The present invention eliminates the drawbacks of the conventional extraction devices described above, and embodiments of the present invention will be described below with reference to the accompanying drawings.

In the figure, 1 is a water tank provided at the rear of the vessel and opened at the top, and a removable lid 2 is provided at the top opening. This water tank 1 is supported at the bottom by a base 3, and has a heat generating part 4 and a heating pipe 5.
A pipe joint 7 connecting one end 5 of the heating pipe of the heating base 6 integrated with the water conduit 7 is connected to the water tank 1.
is connected to the bottom of the. A check valve 8 is provided at the connection between the water tank 1 and the pipe joint 7 to allow the water flow from the water tank 1 to pass therethrough and to block the water flow from the heating pipe 5. Connected to the other end of the heating pipe 5 is a water raising pipe 10 that extends above the vessel body and has a discharge port 9 that opens downward at its tip.
A basket 14 is provided below the discharge port 9. This basket 14 has a flange 13,
The basket 14 is fitted into inner rails 12 on both sides of the upper body 11 and is detachable. At the bottom of the basket 14, there is an outlet 15. Above the outlet 15, an O-ring-shaped waterproof packing 16 having a larger diameter than the outlet 15 is provided. An I-shaped water stop valve 18 with a coil-shaped water stop spring 17 having a larger diameter and a central shaft portion having a smaller diameter than the outlet 15.
is fitted into the outlet 15. Reference numeral 19 denotes a cylindrical cover portion provided to cover the side portion of the water stop valve 18. Two large and small holes 20 and 21 are formed oppositely on the side surface of the cover part 19,
A sliding lever 22 engaged with the holes 20 and 21 is attached to support the water stop valve 18.
The engagement of the sliding lever 22 with the cover portion 19 is as follows:
This is done by inserting the partially protruding part of the sliding lever 22 into the holes 20 and 21 made in the cover part 19.
0, and loosely fits into the large hole 21, allowing the sliding lever 22 to move up and down. Therefore, the sliding lever 22 moves by the length of the large hole 21 using the small hole 20 of the cover part 19 as a fulcrum. A part of the movable side of the sliding lever 22 is provided with an operating rod 23 that protrudes downward from the lower end of the cover portion 19, and the sliding lever 22 is configured such that another component presses the tip of the operating rod 23. This allows it to move up and down. 24 is a container placed below the basket 14, and a heat insulating plate 25 located on the upper surface of the heating base 6 of the base 3 part.
It is placed on. 26 is a spout of the container 24. A cup lid 29 is removably placed on the container 24 by partially engaging a locking portion 28 with a handle 27 attached to the side surface of the container 24. Cup lid 29
A freely rotatable rotating sliding plate 32 with a claw 31 engaged with an opening hole 30 of the cup lid 29 is attached to the center of the cup lid 29 . The rotary sliding plate 32 has a disc-shaped one end with an operating knob 33.
It has a protrusion 34 that protrudes from a step and has an inclined surface on a diagonal of the , and has a drip hole 35 that is lowered with a drop in the center. The protruding height of the protruding portion 34 is such that the protruding height of the protruding portion 34 is such that the basket 14 and the container 24 are
When the slide lever 22 is set in the main body,
The operating rod 23 is pressed at a height that does not touch the operating rod 23 as the slope is followed.
Therefore, the portion projecting obliquely from the lowest height projects above the lower end of the operating rod 23 when the basket 14 is not present. Note that 36 is a thermostat that senses the temperature rise of the heating base 6 and turns the power on and off by bimetal action.

In the above configuration, coffee powder or the like is put into the basket 14 through a filter paper such as a paper filter, and the flange 1 of the basket 14 is placed in the upper body 11.
3 and set the basket 14. Next, the cup lid 29 with the rotating sliding plate 32 attached,
The container 24 is engaged with the handle 27, and the container 24 is set on the heat insulating plate 25 as a unit. When basket 14 and container 24 are set, basket 1
The sliding lever 22 provided below the rotating sliding plate 32 moves up and down depending on the position of the protrusion 34 provided on the rotating sliding plate 32. As a result, the water stop valve 18 that has come into contact with the sliding lever 22 also moves, changing the opening area of the outflow port 15. At this time, the protrusion 34 of the rotating sliding plate 32
Since it has a step and protrudes, various opening areas of the outlet can be obtained by combining the step position and the operating rod 23, and the amount of dripping of the extract in the basket can be changed. Therefore, the brewing time of coffee powder or other to-be-extracted material with hot water can be set to the optimum conditions, and a delicious extract can be obtained. Further, the concentration can be easily corrected from the outside by simply rotating the rotary sliding plate 32 during extraction, and dissatisfaction with taste due to user's erroneous operation can be eliminated. Therefore, after setting the desired extraction conditions using the rotating sliding plate 32, a desired amount of water is poured into the water tank 1. Water heating pipe 5
The water passes through the water tank 1 and accumulates up to the water rising pipe 10 at the same water level as the water in the water tank 1. Next, when electricity is applied, the heat generating portion 4 generates heat, and the heating base 6 is heated. When the heating base 6 is heated, the temperature of the heating pipe 5 increases due to conduction heat, and the water in the heating pipe 5 is heated. When water is heated, it expands and tries to escape from the pipe. At this time, a check valve 8 is attached to the pipe joint 7 on the water tank 1 side, and the heated water rises through the rising pipe 10 and is discharged into the basket 14 from the discharge port 9. When the water in the heating pipe 5 runs out,
The check valve 8 opens again and the water in the water tank 1 flows through the check valve 8.
is sent into the heating pipe 5, and the above cycle is repeated again. Thereafter, the above cycle is repeated until the water tank 1 runs out of water, and hot water fills the basket 14. The hot water in the basket 14 drips into the container 24 from the outlet 15 and collects therein while changing the extraction speed according to the set extraction conditions. Since the container 24 is placed on a heat insulating plate 25 that is in close contact with the heating base 6, the extract accumulated in the container 24 absorbs the heat of the heating base 6 through the heat insulating plate 25 and is kept warm. Ru. After extraction, the container 24 is removed from the base 3 and the extract is taken out.
By removing the container 24, the sliding lever 22 moves downward, the water stop valve 18 moves downward due to the repulsion of the water stop spring 17, and the outlet 15 is closed.
This has the advantage that even if there is residual extract in the basket 14, water will not leak from the basket 14 even if the container 24 is removed, and instruments can be kept clean at all times.

Also, while the container 24 is placed, the basket 1
Even when you want to stop the extraction from 4, you can easily do so by sliding the rotary sliding plate 32, and even if you accidentally put in too much water, you can stop the water quickly and keep warm. The extract in the container 24 can be obtained with a strong taste while maintaining the taste.

As is clear from the above explanation, according to the present invention, since the opening area of the outlet of the basket can be changed, the brewing time of the material to be extracted and hot water can be changed, and the concentration of the extract can be changed. Moreover, since the concentration is changed by changing the brewing time in the basket, there is little variation in concentration, and it is also possible to use extraction methods that require long brewing times, such as the extraction of black tea. In addition, the concentration can be easily changed from the outside even during the extraction process, which eliminates taste dissatisfaction caused by user errors.
Moreover, even if you want to stop extraction from the basket while the container is still in place, you can easily do so by sliding the sliding plate.This allows the water to stop quickly even if you accidentally put in too much water. This has great practical value, as it allows the extract inside the container to have a strong flavor while maintaining heat retention.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a coffee boiler showing an embodiment of the present invention, and FIG. 2 is a perspective view of a rotary sliding plate of the coffee boiler. 18...Water stop valve, 15...Outlet, 14...Basket, 22...Sliding lever, 29...Cup lid, 24...Container, 34...Protrusion part.

Claims (1)

[Claims] 1. A water tank, a heating base forming a conduit with the water tank, a water rising pipe extending from the heating base and having a discharge port opened at its tip, and a water riser pipe disposed below the discharge port. consisting of a raised basket and a container placed below the basket,
A cup lid having a protrusion having an inclined surface and a sliding plate that is slidably movable from the outside is placed on the upper surface of the container, and
A water stop valve for opening and closing the water outlet is disposed at the outlet at the lower end of the basket, and an operating rod associated with the water stop valve is capable of abutting and engaging with the inclined surface of the sliding plate. An apparatus for brewing coffee, etc., in which the opening area of the outlet of the basket can be varied during dripping of the extract by the sliding action of the basket.