JPH0448771Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention allows coffee liquid to be collected directly into a container such as a coffee cup by dripping hot water stored in a container into coffee powder sealed in a filter. Regarding the coffee filter.

[Prior Art] Several methods are known for extracting coffee liquid from coffee powder. The most widely used method is the drip extraction method, which involves pouring hot water into coffee powder and filtering it through a filter.

When using this drip extraction method, the troublesome things are adjusting the amount of coffee powder and disposing of the filter after use.

For this reason, disposable type filters have been proposed and have recently become increasingly popular.

As conventionally proposed filters of this type, the devices described in Japanese Utility Model Publication No. 52-46630 and Japanese Utility Model Publication No. 59-40911 are known.

The former idea is to have a coffee powder enclosure part integrated into the bottom of the container body that can store hot water, and the hot water poured into the container body is passed through this container part to extract the coffee liquid. The idea was to attach a removable filter coffee bag to the bottom of the container body, and pour the hot water through the coffee bag to extract the coffee liquid.

Both of these different types differ in whether they are disposable or reusable, but they have in common that coffee powder wrapped in a filter is provided at the bottom of the container body, and coffee powder They also have a common feature in that the hot water comes into direct contact with the hot water stored in the container body through a filter.

This filter allows coffee powder to come into direct contact with the hot water stored in the container body through a filter, either from the coffee powder storage section or from a place other than the filter section when the coffee bag is integral with the container body. There is a restriction that the structure must be such that hot water does not leak out, and related to this, it is assumed that the coffee powder storage section itself has a sealed structure. For this reason, even if it is a disposable type, the structure must be strict to ensure watertightness, and at the same time, the airtight structure requires a space to allow for expansion of the coffee powder due to penetration of hot water. There was a problem that required preparations within the detention center. In addition, the above-mentioned conventional filter has a structure in which hot water permeates through the entire surface of the stretched filter, supplies the hot water to the coffee powder stored in the filter, and at the same time extracts coffee liquid through the filter stretched on the lower surface. The problem is that it is difficult to control the permeation of the hot water and the concentration of the extracted coffee liquid varies, and that there is a runner through which the hot water passes through the filter into the coffee powder. There was a problem that the coffee liquid with the desired concentration could not be recovered because the passage was induced and the filtration was completed without permeating the entire body.

[Problems to be solved by the invention] The present invention solves the problems of the coffee filters related to the conventional proposals, especially the structural rigidity, non-uniformity of permeation of hot water, variation in permeation rate, etc. In view of this, it was researched and developed to improve this, and its purpose is to allow hot water to penetrate evenly and quickly into the coffee powder, enabling efficient extraction of coffee liquid, as well as pre-preparation. It is an object of the present invention to provide a drip-type coffee filter that enables uniform extraction of coffee liquid at a set concentration.

[Means for Solving the Problems] The present invention has been made based on the above-mentioned objectives, and includes a receiving frame body for placing and accommodating a coffee bag containing coffee powder in a filter, and a hot water reservoir stacked on top of the receiving frame body. A first small hole for dripping hot water is provided at the bottom of the hot water storage container, and a second small hole for dripping hot water is provided at a required height inside the container above the small hole. The purpose of the present invention is to provide a coffee filter having the following characteristics.

That is, the present invention has a height of the water reservoir container,
It is equipped with a first small hole for hot water dripping and a second small hole for hot water dripping with a difference in height, and the hot water poured into this container is initially dripped from both small holes and stored in the receiving frame. At the same time, the hot water is poured over the entire surface to wet the entire coffee powder, thereby improving the permeability of the dripping hot water throughout and enhancing the extraction effect. will automatically stop dripping from the second small hole above as the liquid level in the hot water container falls, and from then on, dripping a small amount only from the small hole below will make enough coffee. The purpose is to extract the coffee components by retaining them in the powder to obtain a coffee liquid with the desired concentration.

In other words, the filter of the present invention initially pours hot water from the water reservoir over the entire surface of the coffee bag in the receiving frame to wet the entire coffee powder, and after this entire wetness is achieved, The idea is to effectively extract the ingredients by dripping a small amount over the required amount of time to obtain contact time between hot water and coffee powder.In particular, this invention wets the entire coffee powder at an early stage. It is unique in that it can be used as a priming water to avoid partial penetration of the hot water and efficiently extract components from the whole body.

Examples illustrating the present invention will be described in detail below.
I will explain its characteristics.

[Example] The drawing shows an example of the present invention.
The figure is a front view of the disassembled state with a cross section taken at the center, Figure 2 is a front view of the main parts shown in use with a cross section taken at the center, Figure 3 is a plan view of the hot water reservoir, and Figure 4 is the receiving frame. 5 is a sectional view taken along the line of FIG. 3, and FIG. 6 is a sectional view taken along the line of FIG. 3.

As shown in the figure, the receiving frame 1 has a shallow funnel-shaped bottom 2, and a drip opening 3 is provided in the center of the bottom, while a plurality of protrusions 5 for receiving coffee bags 4 are provided on the upper surface of the bottom. It is ridged radially around the mouth 3. A circular wall 6 is raised around the bottom portion 2 to form a receiving portion for the hot water reservoir 7.

The hot water reservoir 7 is formed into a circular cup shape that matches the outer shape of the receiving frame 1, and a cylindrical cup that fits inside the wall 6 of the receiving frame is provided on the lower surface along the periphery of the horizontal bottom plate 8. A fitting portion 9 is provided.

A first small hole 10 for dripping hot water is provided in the center of the bottom 8, and approximately half planar holes are formed on the upper surface of the bottom plate 8, facing each other with this small hole 10 in between. A hollow frame 11 having an arc shape is raised.

The hollow frame 11 has a first small hole 10 for dripping hot water into the container 7.
This is for forming second small holes 12 for dripping hot water at different heights, and two small holes 12 are opened in each upper surface part 13 of the two hollow frames.

The second hot water dripping holes 12 shown here are opened in close proximity to the opposing vertical surfaces 14 of the hollow frame 11 so that the left and right ones face each other, and four holes are formed as shown in FIG. A small hole 12 is provided to surround a small hole 10 provided in the bottom plate 8. Further, here, the diameter of each small hole 12 and the diameter of the small hole 10 are made to be the same.

In the figure, reference numeral 15 denotes a pressing plate for pressing the coffee bag 4 which is vertically disposed from the lower surface of the bottom plate 8 along the vertical plane 14. In addition to pressing, this pressing plate also functions as a guiding plate for guiding the hot water falling from the small holes 12 quickly and to the end, as will be described later.

By the way, the coffee bag 4 housed in the receiving frame 1 is made by putting the required amount of coffee powder 16 between the overlapping filters 4a and 4b, and closing and enclosing the filter. Contains approximately 15g of coffee powder.

The filter of the present invention is constructed as described above.
To use it, first prepare a coffee cup 17, which is a container for receiving coffee liquid, and place the receiving frame 1 on top of this cup. Next, the coffee bag 4 is placed in this receiving frame, the hot water container 7 is stacked on top of the coffee bag 4, and the fitting part 9 is fitted inside the wall 6 to complete the set-up. At this time, a pressing plate 15 hanging down from the bottom plate of the container 7 is pressed against the top surface of the coffee bag 4 so that the top surface of the bag is depressed into a dish shape.

FIG. 2 shows a state in which this setting is completed, and after the setting is completed, hot water is poured into the hot water reservoir to extract coffee liquid.

The capacity of the hot water reservoir 7 is determined according to the coffee bag 4 used, and when pouring hot water, the required amount is poured at once to bury the hollow frame 11.

When the required amount of hot water is poured at once in this way, the hot water starts dripping from the small holes 10 in the bottom plate, and as the hollow frame is buried, the four small holes 12 on the top surface of the hollow frame begin to drip.
The hot water will start dripping from there and will be poured onto the coffee bag 4.

Dripping of hot water from all of these hot water dripping holes 10 and 12 is carried out only for a short period of time at the beginning of pouring until the upper surface 13 of the hollow frame 11 appears above the liquid surface.
This temporary dripping of hot water over the entire surface of the coffee bag 4 causes the coffee powder 1 in the bag to drop.
6 becomes wet, and thereafter, as the liquid level falls, the entire amount of hot water is supplied to the coffee bag only from the first hot water dripping hole 10 of the bottom plate 8 over time.

At the initial stage of pouring hot water into the hot water reservoir 7 in this way, hot water drips from all the small holes 10 and 12 and is poured over the entire surface of the coffee bag 4.
The hot water dripped during this time wets the surface of the bag and wets the coffee powder through the entire surface of the filter 4a on the top surface, and the hot water dripping from the first hot water dripping hole 10 as the liquid level falls. This pre-poured hot water is used as priming water to permeate the entire coffee powder and to extract the coffee components in the powder while staying there. The coffee liquid from which these components have been extracted is dripped onto the bottom 2 of the receiving frame and collected into the cup 17 through the drip opening 3.

In addition, in the above embodiment, the second hot water dripping hole 1
2, a hollow frame 11 is provided inside the container 7, but instead of this, a tube is made to stand up from the bottom plate 8 and its upper end is set at a constant height, while the lower end of the tube is placed on the bottom surface of the bottom plate. A small hole 12 may be provided by opening, and its shape is not limited to the illustrated embodiment.

In the case of this embodiment, the small hole 12 is provided close to the vertical surface 14 to allow the dripping hot water to flow down along this vertical surface, and further to quickly flow onto the coffee bag 4 along the pressing plate 15. , and to efficiently guide the user to the end, and shows a preferable example.

[Effects of the invention] As described above in detail in the embodiments, the filter of the invention automatically brews coffee by placing the coffee bag 4 on the receiving frame 1, stacking the hot water container on top of it, and pouring hot water into it. It has the advantage of being easy and convenient to use as it can extract the liquid and dispose of it by simply removing the coffee bag after extraction, and the coffee bag has a simple structure of simply enclosing coffee powder in a filter. Therefore, it has the advantage that it can be provided at a low price.

Another advantage is that by pouring a predetermined amount of hot water into the hot water reservoir of the present invention, coffee liquid of a constant concentration can be recovered. In other words, the filter of the present invention rains hot water over the entire surface of the coffee bag through the first and second small holes when hot water is first poured into the coffee bag, moistens it, and improves the permeability of the hot water. The structure is such that the components are extracted from the entire coffee powder by dropping a small amount into the coffee bag over a predetermined period of time through only the first small hole, making it extremely efficient and achieving a preset concentration. It is designed to be able to extract ivy coffee liquid.
Therefore, it is possible to effectively avoid the problem of conventional filters where hot water penetrates into some coffee powder parts due to the formation of runners, resulting in uneven filtration and uneven concentration. It has become a thing.

[Brief explanation of the drawing]

The drawing shows one embodiment of the present invention.
The figure is a front view of the disassembled state with a cross section taken at the center, Figure 2 is a front view of the main parts shown in use with a cross section taken at the center, Figure 3 is a plan view of the hot water reservoir, and Figure 4 is the receiving frame. 5 is a sectional view taken along the line of FIG. 3, and FIG. 6 is a sectional view taken along the line of FIG. 3. 1... Receiving frame body, 2... Bottom, 3... Dripping port, 4
...Coffee bag, 7...Hot water container, 8...
Bottom plate, 10...first small hole for hot water dripping, 12...second small hole for hot water dripping, 16...coffee powder.

Claims (1)

[Scope of utility model registration request] It consists of a receiving frame 1 for placing and accommodating a coffee bag 4 containing coffee powder in a filter, and a hot water reservoir 7 placed on top of the receiving frame. Small hole for dripping hot water 1
0, while a hollow frame 11 is erected on the top surface of the bottom plate avoiding the small hole 10, and the vertical surface 14 of this hollow frame is
A second small hole 12 for dripping hot water is provided on the upper surface 13 adjacent to the
A coffee filter characterized in that a pressing plate 15 is provided vertically along the vertical surface 14 to press the coffee bag 4 from the lower surface of the bottom plate 8.