JP2584663Y2 - Coffee extractor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coffee extractor for extracting a coffee extract from a coffee powder cartridge obtained by grinding coffee beans.

[0002]

2. Description of the Related Art Conventionally, as a device relating to a coffee extractor, a "simple drip coffee maker" disclosed in Japanese Utility Model Laid-Open No. 19034/1984 is disclosed.

[0003] The "simple drip coffee brewer" of Japanese Utility Model Application Laid-Open No. 59-19034 has a projection formed on the bottom side of a container body and a window for coffee extraction formed on the bottom of the projection. When a coffee pack containing coffee powder is fitted to the protruding portion with filter paper and hot water is poured into the coffee pack from above, a coffee extract is extracted from the window of the protruding portion.

[0004]

[Problem to be solved by the invention] However, the "simple drip coffee brewer" of Japanese Utility Model Application Laid-open No. 59-19034.
Since the container body and the coffee pack are separate bodies, the container body is not wasted, but since the coffee pack is fitted inside the protrusion to prevent the coffee pack from floating when pouring hot water, Removal of the coffee pack after extraction is troublesome. Also, when a large amount of hot water is poured at once, the top surface of the coffee pack is covered with hot water and there is no escape route for air, making it difficult for coffee to be extracted, or from the gap between the fitting part between the coffee pack and the container body. There is a problem that the extraction concentration of the coffee extract extracted from the unextracted hot water flows out.

SUMMARY OF THE INVENTION An object of the present invention is to provide a low-cost coffee extractor having a high extraction concentration of a coffee extract, easy attachment and detachment of a coffee pack, and no waste of the container body.

[0006]

In order to solve the above-mentioned problems, a coffee extractor according to the present invention stores a cartridge in which coffee powder obtained by grinding coffee beans is enclosed, and the cartridge is filled with hot water. A coffee extractor for pouring coffee liquid, comprising: a cylindrical container body having a coffee extraction port opened at a bottom portion; and a lid attached to an upper opening of the container body. A cylindrical rib is formed on the surface of the lid body facing the inside of the container body to hold the filter paper on the upper part of the cartridge so as to be positioned lower than the height of its peripheral edge. An inlet for hot water is opened at a portion of the lid surrounded by the cylindrical rib.

[0007]

According to the coffee extractor of the present invention, when the lid is attached to the upper opening of the container main body, the cylindrical rib presses the filter paper of the cartridge against the bottom side of the container main body and is surrounded by the cylindrical rib. The filter paper portion is located at a position lower than the peripheral edge of the cartridge, and a portion surrounded by the cylindrical rib is partitioned from the peripheral edge of the cartridge.

Therefore, when hot water is poured into the cylindrical rib from the inlet of the lid, the hot water enters a portion located inside the cylindrical rib, and the air in the coffee powder flows into the air from the peripheral portion of the cartridge. Because it can come out, hot water can penetrate into the inside of the coffee powder, making it easier to extract the coffee extract. In addition, since the portion surrounded by the cylindrical rib is located at a position lower than the filter paper at the peripheral edge of the cartridge, the water droplets adhering to the inside of the upper surface of the cartridge are prevented from spreading to the peripheral edge of the cartridge. Therefore, the hot water sufficiently penetrates into the ground coffee beans in the cartridge to extract a coffee extract having a high extraction concentration.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A coffee brewer according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a sectional structure of a coffee extractor according to a first embodiment. The coffee extractor 1 is composed of a container body 2 and a lid 3.

The container body 2 has a bottomed cylindrical shape having an opening 4 at the top and a coffee extraction opening 6 for extracting coffee extract at the bottom 5. The periphery of the coffee outlet 6 at the bottom 5 is tapered. Container body 2
Is composed of an upper tubular portion 2a and a lower tubular portion 2b. The upper tubular portion 2a has a larger diameter than the lower tubular portion 2b, and the upper tubular portion 2a and the lower tubular portion 2a. Shaped part 2b
A step portion 7 as a support portion is formed at a boundary portion between. The upper flange 9a of the cartridge 8 is mounted on the step portion 7.

The cartridge 8 contains coffee powder 8a obtained by grinding coffee beans into powder.
As shown in FIG. 5, a cylindrical frame 9 having an upper diameter larger than a lower diameter is provided. Filters 10 and 11 made of, for example, filter paper are provided in upper and lower openings of the frame body 9.
A plurality of elongated support ribs 12 for supporting the filter 11 are formed in an opening at a lower portion of the frame 9. As the support ribs, a half-moon-shaped projection 12a is actually provided as shown in the drawing and brought into contact with the bottom surface of the lower cylindrical portion. The road is not blocked. The lower part of the support rib 12 protrudes toward the bottom part 5, and the support rib 12 guides the extract extracted by the filter 11 to promote the drop of the liquid. At the upper end of the frame 9, a flange 9 a projecting to the side of the frame 9 is formed.
The upper filter 10 is attached to a. Flange 9
a is locked to the step 7, the upper part of the frame 9 is
b, with a slight gap therebetween.

A handle 13 protrudes from the outer peripheral surface of the upper cylindrical portion 2a. The lid 3 is fitted into the opening of the upper cylindrical portion 2a. A concave portion 14 is formed in the central portion of the lid 3, and the central portion of the concave portion 14 slightly swells upward so as to disperse the poured hot water in all directions. Openings 16 are formed on four sides of the support wall 15 of the concave portion 14 so as to make the hot water pour evenly into the cartridge 8. A cylindrical tubular rib 17 protrudes around the recess 14. The cylindrical rib 17 is provided with the cartridge 8 on the step 7.
Has a height such that the upper filter 10 of the cartridge 8 can slightly bend toward the lower filter 11 when projecting from the step 7 to the bottom 5 side.

Next, a state in which hot water is poured into the coffee extractor 1 according to the first embodiment to extract a coffee extract will be described.

When the flange 9a of the cartridge 8 is mounted on the step 7 and the lid 3 is fitted on the upper end of the upper cylindrical part 2a, the lower end of the cylindrical rib 17 is positioned below the step 7. As a result, the upper filter 10 of the cartridge 8 bends slightly below the height of the flange 9a, and an inclined surface inclined toward the cylindrical rib 17 is formed on the peripheral edge of the upper filter 10.

When hot water is poured into the concave portion 14 with the coffee extractor 1 on a coffee cup (not shown),
The hot water temporarily accumulates in the space partitioned by the cylindrical rib 17 and the upper filter 10 from the opening 16 of the support wall 15. The hot water that has passed through the upper filter 10 enters the cartridge 8 and enters the coffee powder 8a. The air contained in the coffee powder 8a and the air contained in the cartridge 8 and the carbon dioxide gas generated from the coffee powder 8a are:
The light passes through the upper filter 10 and moves to the space between the cylindrical rib 17 and the upper cylindrical portion 2a. Thereby, hot water easily enters between the particles of the coffee powder 8a, and the extraction of the coffee extract is promoted. When hot water enters the cartridge 8, water droplets 18 are formed on the inner wall surface of the cartridge of the upper filter 10. However, since the inclined surface is formed on the periphery of the upper filter 10, the water droplets 18 are removed from the step 7. Leakage is prevented. Therefore, a coffee extract having a high extraction concentration can be extracted. The hot water permeated between the particles of the coffee powder 8a extracts the coffee component from the coffee powder particles and falls from the lower filter 11. The coffee extract dropped from the lower filter 11 is received by the tapered surface of the bottom 5 and falls from the coffee outlet 6 into the coffee cup. The support rib 12
The coffee extract adhering to the support rib 12 is guided and collected at the lower end of the support rib 12 and falls to the bottom 5.

Next, the coffee extractor 20 of the second embodiment will be described.

FIG. 4 shows a cross section of a coffee brewer 20 according to the second embodiment. The coffee brewer 20 accommodates a large-sized cartridge 8 and has a stepped portion at the top of a container body 21. 22 are formed. Container body 2
A recess 24 is formed in the lid 23 fitted into the upper end opening of the first embodiment, similarly to the lid 3 of the first embodiment, and an opening 26 through which hot water flows through the support wall 25 of the recess 24 is formed. I have. Recess 2
A cylindrical rib 27 protrudes around the periphery of 4. Cylindrical rib 2
The tip of the cartridge 7 protrudes slightly below the step 22, and when the lid 23 is fitted on the upper part of the container body 21, the upper filter 10 of the cartridge 8 bends downward and the peripheral edge of the upper filter 10 has an inclined surface. Is formed. Other configurations are the same as those of the first embodiment, and thus the description of the first embodiment is cited. Reference numeral 28 denotes a handle protruding from the upper end of the container body 21.

According to the coffee extractor 20 of the second embodiment, when hot water is poured into the concave portion 24, the hot water enters the space defined by the cylindrical rib 27 and the upper filter 10 through the opening 26. The hot water in the cylindrical rib 27 enters the cartridge 8 without accumulating above the upper filter 10 because the cylindrical rib 27 has a large diameter and the upper filter 10 is also large. The hot water that has entered the cartridge 8 penetrates between the particles of the coffee powder 8a to extract the coffee component, drops from the lower filter 11 through the coffee extraction port 29 of the bottom 28 of the container body 21, and places the coffee extractor 20 thereon. Collect on the coffee server.

[0020]

According to the present invention, it is possible to provide a low-cost coffee extractor which has a high extraction concentration of an extracted coffee extract, can easily attach and detach a coffee pack, and does not waste the container body.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a coffee extractor according to a first embodiment.

FIG. 2 is a sectional view of a cartridge for extracting coffee by the coffee extractor of FIG. 1;

FIG. 3 is a plan view of the cartridge of FIG. 2;

FIG. 4 is a sectional view of a coffee extractor according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coffee extractor 2 Container main body 3 Lid 4 Top opening 5 Bottom 6 Coffee extraction opening 7 Step 8 Cartridge 8a Coffee powder 9 Frame 9a Flange 10 Upper filter 11 Lower filter 12 Support rib 14 Depression 15 Support wall 16 Opening 17 Cylindrical rib 18 Hot water drop

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yasuhiro Sugimura 5-52-2 Jingumae, Shibuya-ku, Tokyo UCC Ueshima Coffee Co., Ltd. (56) References JP-A-63-92317 (JP, A) 1984-19034 (JP, U) JP 1-59532 (JP, U) JP 3-928 (JP, U) (58) Fields studied (Int. Cl. ⁶ , DB name) A47J 31 / 00-31/60

Claims (1)

(57) [Scope of request for utility model registration] 1. A coffee extractor which contains a cartridge in which coffee powder obtained by grinding coffee beans is enclosed, and in which hot water is poured into the cartridge to extract a coffee liquid, wherein a coffee extraction opening is opened at the bottom. A cylindrical container body,
A lid attached to the upper opening of the container body, forming a support portion for stably supporting the cartridge in the container body, and a filter paper on the upper portion of the cartridge on a surface of the lid facing the inside of the container body. Coffee extraction characterized by projecting a cylindrical rib that presses the lower part of the lid to a position lower than the height of the peripheral edge thereof, and opening a hot water inlet at a portion of the lid surrounded by the cylindrical rib. vessel.