JPH0325164B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a coffee maker, and particularly to a coffee maker in which the structure of a water tank and hot water supply means has been improved.

[Prior Art] As a conventional coffee maker, there is one shown in FIG. 5, for example.

In this figure, the outer shell of the coffee maker 1 is composed of a main body case 2 and a bottom lid 3. A heating plate 4 is provided at the bottom of the main body case 2, and a sheathed heater 5 for heating is installed on the heating plate 4.
and a water pipe 6 through which water to be heated is passed.

A heat insulating plate 7 is in close contact with the upper surface of the heat plate 4, and the heat insulating plate 7 is fixed to the main body case 2 together with the heat plate 4 via a packing 8 and a holder 9 by screw means (not shown). There is. A container 10 made of, for example, glass is placed on the heat retaining plate 7, and a lid 11 is attached to the upper opening of the container 10. A band 12 is attached to the lower side of the glass container 10.
(indicated by a broken line in the figure) is fitted,
It is fixed by screw means 14 to the lower side of a handle 13 which is also provided on the side.

A bucket 15 is arranged above the glass container 10.

This bucket 15 is formed in the shape of an inverted conical funnel, and a paper filter 15a for filtering the coffee maker is loaded inside, and coffee beans ground into appropriate granules are placed inside the paper filter 15a. 15b is thrown in. A drip hole 19 is provided at the bottom of the bucket 15, and a valve 18 is provided outside the bottom so as to close the drip hole 19. The valve 18 is formed at one end of an arm 16 attached to the bottom of the bucket, and a spring 17 is provided between the other end of the arm 16 and the side of the bucket 15. Arm 1
6 is rotatable near the center,
The valve 18 connects the bucket 15 to the lid 1 of the glass container 10.
1, the upper end of the lid 11 pushes up the proximal end of the arm 16 against the spring 17, thereby retreating downward and opening the drip hole 19. There is.

A part of the main body case 2 mentioned above rises upward to constitute a vertical portion 2A, and an upper cover 22 and a lower cover 23 are provided extending from this vertical portion 2A toward the upper side of the bucket bag 15.

A bucket 15 is attached to the lower cover 23.

One of the water pipes 6 in the hot plate 4 described above is extended as a hot water pipe 21 and connected to a substantially central portion of the lower cover 23 through the vertical portion 2A and the space between the upper cover 22 and the lower cover 23. A hot water outlet 20 is formed toward the bucket 15.

On the back side of the above-mentioned vertical part 2A, there is a water tank 2.
4 is provided, and the upper part of this water tank 24 is closed with a lid 25.

A valve 26 is provided at the bottom of this water tank 24. This valve 26 is configured to close when the water tank 24 is removed from the main body case 2 of the coffee maker 1 and open when it is attached to the main body case 2, so that water does not leak when the water tank 24 is removed. There is.

The lower body case side of the valve 26 is connected to the other end of the water pipe 6 inside the hot plate 4, and the check valve 27
is provided. This check valve 27 allows water in the water pipe 6 heated by the hot plate 4 to flow into the water tank 2.
This is to prevent the flow from flowing backwards.

To explain the operation of the above conventional example, water in the water tank 24 is introduced into the water pipe 6 in the hot plate 4 via the valve 26.

On the other hand, power is supplied to the heater 5 from an AC power source (not shown), and the heater 5 generates heat.

Due to this heat generation, the water in the water pipe 6 boils in one pipe, and the water is transferred to the heat insulating plate 7 via the hot plate 4.
is heated, and the glass container 10 is kept warm.

The hot water in the water pipe 6 falls into the bucket 15 from the outlet 20, penetrates into the coffee beans 15b, and extracts coffee liquid.

The coffee liquid is filtered by the paper filter 15a and falls into the glass container 10 through the drip hole 19.

[Problems to be Solved by the Invention] In the conventional coffee maker, the area near the outer periphery of the small diameter portion of the funnel-shaped bucket 15 becomes a useless space. Also, Bucket 15
If the water tank 24 is installed separately from the coffee maker, it will be difficult to downsize the entire coffee maker.

Furthermore, there was a problem in that it took time and effort to install and remove the bucket and water tank when using the coffee maker.

This invention was made to solve the above-mentioned problems, and aims to provide an easy-to-use coffee maker in which the coffee maker itself can be downsized and the bucket and water tank can be easily attached and detached. .

[Means for Solving the Problems] In order to achieve the above object, the coffee maker according to the present invention has the following steps:
The tip of the bucket protrudes from the opening provided at the bottom of the water tank.

The water tank is characterized in that a fitting is fitted from outside the water tank to the tip of the bucket protruding from the opening.

[Function] According to the above structure, the space near the outer periphery of the small diameter part of the funnel-shaped bucket can be effectively used as a water storage part, and since the bucket and the water tank are formed so that they can be fitted, the coffee maker When in use, the bucket and water tank can be installed and removed simultaneously in one operation.

Furthermore, the bucket and water tank are constructed separately, and both are fitted and fixed using a fitting.
It becomes possible to easily disassemble and assemble, and cleaning etc. can be performed easily.

[Embodiment] An embodiment of the coffee maker according to the present invention will be described based on FIG. 1.

This figure shows a schematic cross-sectional view of the embodiment, and elements having the same functions and configurations as those of the conventional device are designated by the same reference numerals, and the explanation thereof will be omitted.

In this embodiment, the water storage portion of the water tank 30 is formed in the outer peripheral space of the funnel-shaped bucket 15. That is, the water tank 30 has a structure in which a water storage tank is formed around the bucket 15 by using the outer peripheral surface of the bucket 15 as a wall for storing water, and water is stored in a ring shape around the bucket 15. It is becoming.

The water tank 30 is connected to the bucket 1 via the bucket fitting 31 and the gasket 32 at the bottom of the water tank 30.
5 (details will be described later).

In order to be able to inject water into the water tank 30 with the bucket 15 installed inside the water tank 30, the upper overhang of the bucket 15 is provided with a
Water inlet 33 is open.

Further, in this embodiment, a nozzle 34 is provided at the end of the hot water supply pipe 21 on the hot water blowing side.

This nozzle 34 has a hot water outlet 20 at its tip.
is formed, and its base end is rotatably attached to a rotation shaft 35.

A claw portion 36 that rotates as the nozzle 34 rotates is provided at the end of the nozzle 34 on the pivoting side. The upward rotation of the nozzle 34 is stopped at a predetermined angle by a pawl protrusion 36a provided at the base end of the nozzle 34.

FIG. 2 shows a perspective view of the main body 1 of the coffee maker according to the present invention and the nozzle portion provided with the claw portion 36, and in this example, the nozzle 34 is housed in a nozzle case 37.

The nozzle case 37 rotates in the direction of arrow 100 about a rotation shaft 35 housed in a shaft cover 38 as a fulcrum. The claw portion 36 is adapted to engage with a collar portion on the upper outer periphery of the water tank 30.

FIG. 3 is an explanatory diagram of a method of fitting the bucket 15 and the water tank 30 used in the present invention, and shows an example of the bucket 15, the water tank 30, the bucket fitting 31, and the gasket 32.

First, the seal 32 for preventing water leakage is passed through the annular projection 39 provided at the bottom end of the bucket 15.

Then, it is inserted into an opening provided at the bottom of the water tank 30. A gasket 32 completely seals the space between the water tank 30 and the annular projection 39.

The annular protrusion 39 protruding outward from the bottom opening of the water tank is further passed through the bucket fitting 31, and the engaging protrusion 40 provided on the outer periphery of the tip of the annular protrusion 39 engages with the bucket fitting 31. As a result, the bucket 15, gasket 32, bucket attachment 31, and water tank 30 are fitted and fixed.

FIG. 4 shows the detailed structure of the bucket mount 31 that is characteristic of the present invention, in which A is a top view, E is a side view, and C is an arm 16 formed by the bucket mount 31. FIG.

In the illustrated example, the bucket attachment 31 is attached to the base 4.
2 and the arm 16.

One wing of the base 42 has a circular upper surface, and a substantially rectangular opening 43 in the center thereof.
is provided.

The arm 16 is rotatably supported approximately at the center by a bearing portion 44 that projects from the back side of the base portion 42 .

One end 16a of the arm 16 is bent diagonally downward, and a spring 17 is interposed between the base and the bent portion 16a.

On the other hand, a portion of the arm 16 facing the opening 43 constitutes a valve 18.

A hemispherically protruding closing portion 45 is formed at the top of the valve 18, and the closing portion 45 is formed to be able to fit into the drip hole 19 provided at the tip of the bottom of the bucket.

As shown in FIG. 4C, a recess 46 is formed on the upper surface of the valve 18, and the tip 4 of the valve 18
A notch is formed in 7.

Next, the usage conditions of the above embodiment will be explained below.

First, remove the tank lid 25 on the top of the main body, rotate the nozzle 34, and connect the water inlet 33 to the water tank 3.
Inject water into 0.

On the other hand, a paper filter 15a is set in the bucket 15, and ground coffee powder 15b is put therein. Then, close the tank lid 25 and turn on the power.

Water in the water tank 30 flows from the bottom valve 26 to the check valve 27
The heated water is supplied to the water pipe 6 in the hot plate 4 through the water guide pipe, and the heated water is poured into the coffee grounds from the hot water outlet 20 at the tip of the nozzle 34 through the hot water pipe 21 to which the water pipe 6 is extended. It will be done.

As a result, coffee extraction and filtration is performed in the same manner as before.

When removing the water tank 30 after coffee extraction is finished, first rotate the nozzle 34 upwards, and the claw part 36 provided at the end of the nozzle on the shaft side engages with the collar part on the upper outer periphery of the water tank 30. Then, the water tank 30 is lifted upward. As a result, the joint between the water tank 30 and the main body 1 for supplying water from the water tank 30 to the water pipe 6 is removed.
The water tank 30 is released from the predetermined set state and can be easily removed.

Therefore, according to the above embodiment, by forming the water storage part in the water tank 30 in the space around the small diameter part of the funnel-shaped bucket 15, the coffee maker can be used more easily than when the water tank is separately provided on the side of the coffee maker main body. The overall size can be reduced and the structure can be simplified.

Moreover, by fitting and fixing the bucket 15 and the water tank 30, they can be easily installed and removed with one touch. That is, the annular protrusion 39 of the bucket 15 protruding from the opening at the bottom of the water tank is inserted by aligning its engagement projection 40 with the longitudinal direction of the rectangular opening 43 of the bucket attachment part 31, and then the bucket attachment 31 is rotated. By doing so, the bucket 15 and the water tank 30 can be easily fitted and fixed.

Also, from the fitted and fixed state of the bucket 15 and the water tank 30, rotate the fixture 31, align the engagement protrusion 40 provided on the annular projection 39 at the tip of the bucket 15 in the longitudinal direction of the opening 43, and then
It can be easily removed by pulling it out.

Therefore, maintenance such as cleaning of the bucket 15 and water tank 30 can be easily performed.

Furthermore, in this embodiment, the arm 16 is provided on the fixture 31, and the valve 18 is formed in one wing of the arm 16, so that the drip hole 19 of the bucket 15 normally meets the closing part 45 of the valve 18. to prevent water leakage.

On the other hand, as shown in FIG. 1, the case 2 of the coffee maker 1 includes a bucket 15 and a water tank
0 and container 10 are installed, the container 10
The lid 11 disposed on the upper part presses the lower part of the bent part 16a of the arm 16 and rises against the pressing force of the spring 17, and the valve 1 is opened around the bearing part 44.
8 descends.

As a result, the closing part 45 separates from the drip hole 19 of the annular projection 39, and the extracted and filtered coffee flows out through the drip hole 19, the recess 46 of the fixture 16, and the tip 47, and drips into the container 10. .

Therefore, according to the coffee maker according to this embodiment, even when the water tank 30 is removed from the coffee maker main body, residual coffee liquid and the like will not drip.

Further, a claw portion 36 provided at the end of the nozzle 34
Therefore, when removing the water tank 30, the water tank 30 can be lifted from the set state to a position where it can be easily removed, thereby achieving further improvement in operability.

Further, since the bucket 15 and the water tank 30 can be easily removed from the fitted and fixed state, each container can be easily cleaned by removing both when cleaning the containers.

[Effects of the Invention] As explained above, according to the present invention, the space near the outer periphery of the small diameter portion of the bucket can be used without waste as a water reservoir, and the entire coffee maker can be easily miniaturized. .

Furthermore, since the bucket bag and water tank can be easily removed and fitted and fixed using fittings, maintenance operations such as cleaning can be easily performed.

[Brief explanation of the drawing]

Fig. 1 is a schematic sectional view showing an embodiment of the present invention, Fig. 2 is a perspective view of an embodiment of the coffee maker main body of the invention, and Fig. 3 is a bucket and a water tank of the coffee maker of the invention. FIG. 4 is an explanatory diagram of the fixture of the present invention, and FIG. 5 is a schematic sectional view of a conventional coffee maker. In the figure, 1... main body, 2... main body case,
3...Bottom cover, 4...Heating plate, 6...Water pipe, 10
...Glass container, 15...Bucket, 24 and 3
0...Water tank, 31...Bucket fitting.

Claims (1)

[Scope of Claims] 1. A funnel-shaped bucket that holds a paper filter for coffee filtration, a water tank that stores water for coffee extraction, and a hot water supply that heats water from the water tank and blows it out from the top of the bucket. and a heat retaining means in which a container for receiving coffee extract dripping from a drip hole provided at the bottom of the bucket is placed;
In the coffee maker, the bucket is removably arranged in the water tank, and the drip hole of the bucket is formed in an annular protrusion protruding from an opening provided at the bottom of the water tank. A coffee maker characterized in that the coffee maker is equipped with a fitting that engages with the annular protrusion projecting from the holder to fit and fix the bucket to the water tank. 2. The coffee maker according to claim 1, wherein the fixture includes an arm having a valve that can close and open a drip hole in the bottom of the bucket.