Coffee dripper

Abstract

To provide a coffee dripper to which various types of paper filters can be applied.SOLUTION: A coffee dripper 1 includes: a paper filter housing part 2 which accepts a paper filter; a pedestal part 4 which is installed in the lower part of the paper filter housing part and which is placed on a cup; an outflow part 8 which is installed on the pedestal part and in which an outflow hole 9 is formed for making a coffee liquid that passed the paper filter flow out downward; and an extension part 6 which connects the paper filter housing part and the pedestal part and which forms a space that communicates the outflow hole by vertically extending between these parts. The paper filter housing part, when a trapezoidal paper filter F1 is applied, accepts the entire lower part of the paper filter, and when a conical paper filter F2 is applied, the tip in the lower part of the paper filter is designed to protrude. The extension part accepts the tip of the lower part of the conical paper filter that protrudes from the paper filter housing part.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a coffee dripper for extracting coffee liquid from coffee powder obtained by grinding coffee beans. [Background technology]

[0002] Conventionally, there has been known a coffee dripper that pours hot water into a filter containing ground coffee, filters the ground coffee, and pours the extracted coffee liquid into a cup. Generally, disposable paper filters are widely used as such filters. For example, technologies related to a coffee dripper that uses a paper filter are disclosed in Patent Documents 1 and 2. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-83445 [Patent Document 2] JP 2020-31829 A Summary of the Invention [Problem to be solved by the invention]

[0004] Typically, trapezoidal paper filters and conical paper filters are used as paper filters applied to coffee drippers. The above-mentioned Patent Document 1 describes a coffee dripper to which a trapezoidal paper filter is applied, and the above-mentioned Patent Document 2 describes a coffee dripper to which a conical paper filter is applied. Note that the term "trapezoidal" is used for trapezoidal paper filters because the shape of the filter when attached to the coffee dripper and viewed from the horizontal direction is trapezoidal.

[0005] However, in the conventional coffee dripper, when a trapezoidal paper filter is applied, it is necessary to use a coffee dripper dedicated to the paper filter, and when a conical paper filter is applied, it is necessary to use a coffee dripper dedicated to the paper filter. Specifically, when a trapezoidal paper filter is applied to a coffee dripper dedicated to a conical paper filter, the paper filter does not fit into the coffee dripper. Also, when a conical paper filter is applied to a coffee dripper dedicated to a trapezoidal paper filter, the paper filter fits into the coffee dripper, but a large gap is created between them, and the paper filter is not stably held. For this reason, it was basically impossible to apply both a trapezoidal paper filter and a conical paper filter to the same coffee dripper.

[0006] Here, there are paper filters in shapes other than the trapezoidal and conical shapes, such as basket-shaped (flat-bottomed) filters with a wavy outer periphery, but these paper filters also require the use of a dedicated coffee dripper, and have the same problems. There is also a method of folding the paper filter as needed so that it can be used with a non-dedicated coffee dripper, but this method has problems such as the time required to fold the paper filter.

[0007] Therefore, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a coffee dripper that can be used with paper filters of various shapes. [Means for solving the problem]

[0008] In order to achieve the above object, the present invention provides a coffee dripper for extracting coffee liquid by pouring hot water into a paper filter containing coffee powder, the coffee dripper having an internal space for receiving a paper filter and a cross-sectional area of ​​the internal space which is formed so as to decrease in a downward direction; a base portion provided below the paper filter receiving portion and placed on a cup; an outflow portion provided on the base portion and having an outflow hole for allowing coffee liquid that has passed through the paper filter to flow downward; and an extension portion connecting the paper filter receiving portion and the base portion and extending vertically between them to form an internal space communicating with the outflow hole; wherein the paper filter receiving portion receives the entire lower part of the paper filter when a trapezoidal paper filter is applied, and receives all of the paper filter except for the lower tip when a conical paper filter is applied, with the lower tip of the paper filter protruding, and the extension portion is formed to receive the lower tip of the conical paper filter protruding from the paper filter receiving portion.

[0009] According to the present invention configured in this way, an extension portion is provided between the paper filter housing portion and the base portion to form an internal space extending in the vertical direction, and this extension portion can receive the lower tip of the conical paper filter protruding from the paper filter housing portion. Therefore, according to the present invention, a trapezoidal paper filter can be received in the paper filter housing portion, and a conical paper filter can be received in the paper filter housing portion and the extension portion, making it possible to accurately apply both a trapezoidal paper filter and a conical paper filter. Therefore, according to the present invention, paper filters of various shapes can be applied to the coffee dripper.

[0010] In the present invention, a protruding step is preferably provided on a portion of the inner wall surface from the paper filter accommodating section to the extension section, and the step is formed so as to support the lower end of the trapezoidal paper filter. According to the present invention configured in this manner, the trapezoidal paper filter can be supported by the step portion, thereby preventing the paper filter from falling below the paper filter housing portion.

[0011] In the present invention, preferably, a cylindrical portion is provided on the bottom surface of the base portion, protruding downward and formed to surround the outflow portion, the cylindrical portion including a pair of notches formed by cutting out two opposing locations, and the base portion is positioned on the two cups so that the upper edges of each of the two cups cross between the pair of notches in the cylindrical portion, making it possible to place the coffee dripper across the two cups. Conventionally, a cylindrical portion is used to position a coffee dripper when it is placed on one cup, but in the present invention, a part of such a cylindrical portion is cut out so that the coffee dripper can be placed across two cups. This allows the coffee dripper to be placed across two cups with a simple structure.

[0012] In the present invention, the outflow portion preferably includes a pair of one or more outflow holes formed at positions symmetrical with respect to a center line passing through the respective central positions of the pair of cutout portions. According to the present invention configured in this manner, when the coffee dripper is placed across two cups, each of the pair of outlet holes can be positioned above each cup, making it possible to pour coffee liquid evenly into each cup.

[0013] In the present invention, preferably, an inclined surface sloping downward from the end of the outflow portion toward the outflow hole, and an inclined surface sloping downward from the center of the outflow portion toward the outflow hole are formed on the upper surface of the outflow portion. According to the present invention configured in this manner, the coffee liquid can be collected toward the outlet hole while preventing the coffee liquid from accumulating in the center of the outlet part (the part where no outlet hole is formed). This allows the coffee liquid to efficiently flow from the outlet hole into each cup.

[0014] In the present invention, the outflow portion preferably includes a pair of two or more outflow holes, and the outflow hole among the two or more outflow holes that is closest to the center line is formed so as to protrude downward further than the other outflow holes. According to the present invention configured in this manner, the outlet hole closest to the center line protrudes downward significantly, making the location of the outlet hole easy to find. This makes it possible to easily position the coffee dripper relative to the two cups so that the upper edges of each of the two cups are positioned between the pair of outlet holes.

[0015] From another perspective, in order to achieve the above-mentioned object, the present invention is a coffee dripper for extracting coffee liquid by pouring hot water into a paper filter containing coffee powder, the dripper having an internal space to receive the paper filter and a cross-sectional area of ​​the internal space which becomes smaller in a downward direction, a paper filter accommodating section which is provided below the paper filter accommodating section and is placed on a cup, an outflow section which is provided in the base section and has an outflow hole through which coffee liquid which has passed through the paper filter flows downward, and an extension section which connects the paper filter accommodating section and the base section, extends vertically between them to form an internal space which communicates with the outflow hole, the cross-sectional area of ​​the internal space being formed to be approximately constant. The present invention thus configured also makes it possible to apply paper filters of various shapes to coffee drippers. Effect of the Invention

[0016] The coffee dripper according to the present invention can be used with paper filters of various shapes. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view of a coffee dripper according to an embodiment of the present invention, seen obliquely from above. [Diagram 2] FIG. 2 is a perspective view of the coffee dripper according to the embodiment, seen obliquely from below. [Diagram 3]FIG. 2 is a front view of the coffee dripper according to the present embodiment as viewed from the arrow A1 in FIG. [Figure 4] FIG. 2 is a side view of the coffee dripper according to the present embodiment as viewed from the arrow A2 in FIG. [Diagram 5] FIG. 2 is a top view of the coffee dripper according to the embodiment. [Figure 6] FIG. 2 is a bottom view of the coffee dripper according to the embodiment. [Figure 7] 7 is a cross-sectional view of the coffee dripper according to the embodiment of the present invention taken along line VII-VII in FIG. 3. [Figure 8] FIG. 2 is a cross-sectional view showing a state in which a trapezoidal paper filter is applied to the coffee dripper according to the embodiment. [Figure 9] FIG. 2 is a cross-sectional view showing a state in which a cone-shaped paper filter is applied to the coffee dripper according to the embodiment. [Figure 10] FIG. 1 is a perspective view showing a state in which the coffee dripper according to the present embodiment is placed on two cups. [Figure 11] FIG. 2 is a perspective cross-sectional view showing a state in which the coffee dripper according to the embodiment is placed on two cups. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, a coffee dripper according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0019] [Coffee dripper configuration] The configuration of a coffee dripper according to an embodiment of the present invention will be described with reference to Figs. 1 to 7. Fig. 1 is a perspective view of the coffee dripper according to the embodiment as viewed obliquely from above. Fig. 2 is a perspective view of the coffee dripper according to the embodiment as viewed obliquely from below. Fig. 3 is a front view of the coffee dripper according to the embodiment as viewed from the direction of arrow A1 in Fig. 1. Fig. 4 is a side view of the coffee dripper according to the embodiment as viewed from the direction of arrow A2 in Fig. 1. Fig. 5 is a top view of the coffee dripper according to the embodiment. Fig. 6 is a bottom view of the coffee dripper according to the embodiment. Fig. 7 is a cross-sectional view of the coffee dripper according to the embodiment as viewed along line VII-VII in Fig. 3.

[0020] As shown in Figs. 1 to 7, the coffee dripper 1 has an internal space for receiving a paper filter (not shown) at its upper part, and a paper filter accommodating section 2 formed in a funnel shape so that the cross-sectional area of ​​the internal space decreases toward the bottom. Specifically, the paper filter accommodating section 2 is formed in a generally approximately truncated cone shape with an approximately circular upper cross section and an approximately elliptical lower cross section so that a typical trapezoidal paper filter can be attached without any gaps. The inner wall surface of the paper filter accommodating section 2 has undulations extending along the circumferential direction (horizontal direction) that are formed continuously over the entire surface in the vertical direction (Figs. 1, 5, and 7). The coffee dripper 1 also has a base section 4 provided below the paper filter accommodating section 2 and formed in a flange shape so as to protrude in the horizontal direction. The coffee dripper 1 is designed to be placed on a cup (not shown) on the base section 4. In addition, in the center of the base 4 of the coffee dripper 1, an outlet part 8 having a generally elliptical shape in a plan view is provided so as to protrude downward, and this outlet part 8 is formed with a plurality of outlet holes 9 for allowing the coffee liquid that has passed through the paper filter to flow downward (FIGS. 2, 5, 6, and 7). In particular, the outlet part 8 is formed with four outlet holes 9.

[0021] The coffee dripper 1 further has a cylindrical extension 6 connecting the paper filter accommodating section 2 and the base section 4, and the extension 6 forms an internal space extending in the vertical direction between the paper filter accommodating section 2 and the base section 4 and communicating with the outflow hole 9 (Figs. 1, 3, 4, and 7). The internal space of the extension 6 has a substantially constant cross-sectional area, unlike the internal space of the paper filter accommodating section 2. The cross-sectional area of ​​the internal space of the extension 6 corresponds to the minimum cross-sectional area of ​​the internal space of the paper filter accommodating section 2. The outflow section 8 is provided so as to close the opening at the lower end of the extension 6. In addition, a substantially elliptical annular step 13 is formed to protrude on the inner wall surface between the extension 6 and the paper filter accommodating section 2 (more specifically, the boundary between them) (Figs. 5 and 7).

[0022] The base 4 has a cylindrical portion 10 on its bottom surface, which protrudes downward and surrounds the outflow portion 8. The cylindrical portion 10 includes a pair of cutouts 11 formed by cutting out two opposing portions (FIGS. 2 and 6). The cylindrical portion 10 is taller than the outflow portion 8 (FIG. 7). The outflow hole 9 of the outflow portion 8 is made up of a pair of two outflow holes 9a, 9b formed at symmetrical positions across a center line C that passes through the center positions of the pair of cutouts 11 in the cylindrical portion 10 (FIG. 6). The outflow hole 9a is located closer to the center line C than the outflow hole 9b.

[0023] Further, on the upper surface of the outflow portion 8, there are formed an inclined surface 8a that slopes downward from the end of the outflow portion 8 toward the outflow hole 9a, and an inclined surface 8b that slopes downward from the center of the outflow portion 8 toward the outflow hole 9a (FIG. 7). In addition, the outflow hole 9a is formed so as to protrude downward beyond the outflow hole 9b.

[0024] More specifically, the base 4 further includes an edge 4a formed along its edge and protruding downward, a pair of notches 4a1 formed by cutting out two opposing portions of the edge 4a (particularly, portions corresponding to the pair of notches 11 in the cylindrical portion 10), four connection portions 4b connecting both ends of the pair of portions of the edge 4a excluding the notches 4a1 to both ends of the pair of portions of the cylindrical portion 10 excluding the notches 11, and two connection portions 4c connecting two adjacent connection portions 4b in the four connection portions 4b (FIGS. 2 and 6). The edge 4a and the connection portions 4b, 4c are each at the same height, but are lower than the cylindrical portion 10. In particular, the edge 4a and the connection portions 4b, 4c are located at approximately the same vertical position as the center of the outflow portion 8 (FIG. 7).

[0025] [Coffee dripper usage status] Next, a state in which a paper filter is applied to the coffee dripper 1 will be described with reference to Fig. 8 and Fig. 9. Fig. 8 is a cross-sectional view showing a state in which a trapezoidal paper filter is applied to the coffee dripper 1 according to this embodiment. Fig. 9 is a cross-sectional view showing a state in which a cone-shaped paper filter is applied to the coffee dripper 1 according to this embodiment. Figs. 8 and 9 correspond to cross-sectional views taken along line VII-VII in Fig. 3.

[0026] 8, when the trapezoidal paper filter F1 is applied to the coffee dripper 1, the entire lower part of the paper filter F1 is received without any gaps in the paper filter accommodating section 2. In this case, the lower end of the trapezoidal paper filter F1 is supported by a step portion 13 formed on the inner wall surface at the boundary between the paper filter accommodating section 2 and the extension portion 6. This prevents the trapezoidal paper filter F1 from falling downward in the paper filter accommodating section 2.

[0027] 9, when a conical paper filter F2 is applied to the coffee dripper 1, the entire portion of the paper filter F2 except for its lower tip is received in the paper filter accommodating section 2, but the lower tip of the paper filter F2 protrudes from the paper filter accommodating section 2. The lower tip of the conical paper filter F2 protruding from the paper filter accommodating section 2 is adapted to be received in the extension section 6. In this case, the lower tip of the conical paper filter F2 abuts against the upper surface of the outflow section 8. In addition, in order to prevent the lower end of the paper filter F2 from being crushed when hot water is poured into the cone-shaped paper filter F2, it is preferable to set the vertical length of the extension part 6 from the viewpoint of holding the paper filter F2 firmly in the coffee dripper 1 (it is preferable to form this length relatively long). In addition, from this viewpoint, it is preferable to set the vertical and / or horizontal length of the paper filter storage part 2 and the inclination angle of the internal space of the paper filter storage part 2. In addition, in FIG. 9, the lower end of the paper filter F2 abuts on the upper surface of the outflow part 8, but the coffee dripper 1 may be configured so that the lower end of the paper filter F2 does not abut on the upper surface of the outflow part 8. For example, the vertical length of the extension part 6 may be formed relatively long so that the lower end of the paper filter F2 does not abut on the upper surface of the outflow part 8.

[0028] With this type of coffee dripper 1, a trapezoidal paper filter F1 is received in the paper filter accommodating section 2, and a conical paper filter F2 is received in the paper filter accommodating section 2 and the extension section 6, so that both the trapezoidal paper filter F1 and the conical paper filter F2 can be appropriately used.

[0029] Next, a state where the coffee dripper 1 is placed on two cups will be described with reference to Figs. 10 and 11. Fig. 10 is a perspective view showing the state where the coffee dripper 1 according to this embodiment is placed on two cups. Fig. 11 is a perspective cross-sectional view showing the state where the coffee dripper 1 according to this embodiment is placed on two cups. The cups C1 and C2 shown here have approximately the same height. Typically, the cups C1 and C2 have the same shape, but the present invention is not limited to applying cups C1 and C2 having the same shape.

[0030] As shown in Fig. 10 and Fig. 11, the base part 4 is arranged on the two cups C1 and C2 so that the upper edge parts of the two cups C1 and C2 are located in the center part of the base part 4 (the part along the center line C in Fig. 6), in other words, between the pair of outlet holes 9a, so that the coffee dripper 1 can be placed across the two cups C1 and C2. More specifically, when the coffee dripper 1 is placed in this manner, the upper edge parts of the two cups C1 and C2 cross between the pair of cutout parts 11 of the cylindrical part 10 and between the pair of cutout parts 4a1 of the base part 4, and come into contact with the center part of the outlet part 8 (more specifically, the back side of the part where the inclined surface 8b is formed) and the two connecting parts 4c of the base part 4. In other words, the coffee dripper 1 is supported by the upper edge parts of the two cups C1 and C2 at the center part of the outlet part 8 and the connecting parts 4c of the base part 4.

[0031] [Action and Effects] Next, the operation and effects of the coffee dripper 1 according to the present embodiment will be described.

[0032] The coffee dripper 1 of this embodiment has an internal space to receive a paper filter, and a paper filter accommodating section 2 which is formed so that the cross-sectional area of ​​the internal space decreases in the downward direction; a base section 4 which is provided below the paper filter accommodating section 2 and which is placed on a cup; an outlet section 8 which is provided on the base section 4 and which is formed with an outlet hole 9 through which coffee liquid that has passed through the paper filter flows downward; and an extension section 6 which connects the paper filter accommodating section 2 and the base section 4 and which extends vertically between them to form an internal space which communicates with the outlet hole 9. When a trapezoidal paper filter F1 is used, the paper filter accommodating section 2 receives the entire lower part of the paper filter F1, whereas when a conical paper filter F2 is used, the paper filter accommodating section 2 receives all of the paper filter F1 except for its lower tip, but when a conical paper filter F2 is used, the lower tip of the paper filter F2 protrudes, and the extension section 6 is formed so as to receive the lower tip of the conical paper filter F2 protruding from the paper filter accommodating section 2.

[0033] The coffee dripper 1 according to this embodiment has an extension 6 that forms an internal space extending vertically between the paper filter accommodating section 2 and the base section 4, and this extension 6 can receive the lower tip of the conical paper filter F2 protruding from the paper filter accommodating section 2. Thus, according to this embodiment, the trapezoidal paper filter F1 can be received in the paper filter accommodating section 2, and the conical paper filter F2 can be received in the paper filter accommodating section 2 and the extension 6, making it possible to appropriately use both the trapezoidal paper filter F1 and the conical paper filter F2.

[0034] In addition to the trapezoidal and conical shapes, there are also basket-shaped (flat-bottomed) paper filters with a wavy outer periphery, and the coffee dripper 1 according to this embodiment can also be applied to basket-shaped paper filters. This basket-shaped paper filter also appears to be approximately trapezoidal as a whole when viewed horizontally while attached to the coffee dripper 1, and is therefore included in the trapezoidal paper filter F1.

[0035] Furthermore, according to this embodiment, a protruding step 13 is provided on the inner wall surface at the boundary between the paper filter accommodating section 2 and the extension section 6, and the step 13 is formed so as to support the lower end of the trapezoidal paper filter F1. This allows the trapezoidal paper filter F1 to be supported by the step 13, preventing the paper filter F1 from falling below the paper filter accommodating section 2.

[0036] According to this embodiment, the bottom surface of the base 4 is provided with a cylindrical portion 10 that protrudes downward and is formed to surround the outflow portion 8, and the cylindrical portion 10 includes a pair of notches 11 formed by cutting out two opposing portions. The base 4 is placed on the two cups C1 and C2 so that the upper edge portions of the two cups C1 and C2 cross between the pair of notches 11 of the cylindrical portion 10, and the coffee dripper 1 can be placed across the two cups C1 and C2. Conventionally, the cylindrical portion 10 is used to position the coffee dripper 1 when placing it on one cup, but in this embodiment, a part of the cylindrical portion 10 is cut out so that the coffee dripper 1 can be placed across the two cups C1 and C2. This allows the coffee dripper 1 to be placed across the two cups C1 and C2 with a simple configuration.

[0037] Furthermore, according to this embodiment, the outflow portion 8 includes a pair of outflow holes 9 (9a, 9b) formed at positions symmetrical with respect to a center line C passing through the respective centers of the pair of cutout portions 11. As a result, when the coffee dripper 1 is placed across two cups C1, C2, each of the pair of outflow holes 9 (9a, 9b) can be positioned above each of the cups C1, C2, making it possible to pour coffee liquid evenly into each of the cups C1, C2.

[0038] Furthermore, according to this embodiment, an inclined surface 8a that slopes downward from the end of the outflow portion 8 toward the outflow hole 9 and an inclined surface 8b that slopes downward from the center of the outflow portion 8 toward the outflow hole 9 are formed on the upper surface of the outflow portion 8. This makes it possible to prevent the coffee liquid from accumulating in the center of the outflow portion 8 (the portion where the outflow hole 9 is not formed) while collecting the coffee liquid toward the outflow hole 9. This allows the coffee liquid to efficiently flow out of the outflow hole 9 into each of the cups C1 and C2.

[0039] Moreover, according to this embodiment, the outflow hole 9a located near the center line C among the outflow holes 9a, 9b is formed to protrude downward more than the outflow hole 9b. As described above, when the coffee dripper 1 is placed across two cups C1, C2, it is necessary to place the base part 4 on the two cups C1, C2 so that the upper edge parts of the two cups C1, C2 are located between the pair of outflow holes 9a. In this case, in this embodiment, the outflow hole 9a protrudes downward more than the other outflow holes 9b, and the position of the outflow hole 9a is easy to find. Therefore, it is possible to easily position the coffee dripper 1 with respect to the two cups C1, C2 so that the upper edge parts of the two cups C1, C2 are located between the pair of outflow holes 9a.

[0040] [Variations] Next, a modified example of the coffee dripper 1 according to the above-described embodiment will be described.

[0041] In the above embodiment, a step portion 13 was formed on the inner wall surface at the boundary between the paper filter accommodating section 2 and the extension section 6, but in a modified example, the step portion 13 may be formed on the inner wall surface of the lower part of the paper filter accommodating section 2 or the inner wall surface of the upper part of the extension section 6.

[0042] In the above embodiment, four outlet holes 9 are formed in the outlet portion 8, but the number of outlet holes 9 is not limited to four. When the coffee dripper 1 is configured to be placed across two cups C1 and C2, an even number of outlet holes 9 may be used. In this case, two outlet holes 9, six, eight, etc. may be used. On the other hand, when the coffee dripper 1 is not configured to be placed across two cups C1 and C2, only one outlet hole 9 may be used.

[0043] In addition, in the above embodiment, the coffee dripper 1 is not provided with a handle, but the coffee dripper 1 may be provided with a handle.

[0044] In the above embodiment, the coffee dripper 1 is placed across two cups C1 and C2, but it goes without saying that the coffee dripper 1 can also be placed on a single cup.

[0045] As described above, the above-described embodiment is an example for explaining the present invention, and the present invention is not limited to this embodiment. The present invention can be embodied in various forms without departing from the gist of the present invention. [Explanation of symbols]

[0046] 1 Coffee dripper 2 Paper filter storage section 4 Pedestal 6 Extension 8 Outlet 8a, 8b sloped surface 9, 9a, 9b Outflow hole 10 Cylindrical part 11 Notch 13 Step C1, C2 Cup F1, F2 paper filters

Claims

1. A coffee dripper for extracting coffee liquid by pouring hot water into a paper filter containing coffee powder, A paper filter storage section having an internal space for receiving a paper filter, the internal space having a cross-sectional area that decreases in a downward direction; A base portion provided below the paper filter storage portion and placed on a cup; an outlet portion provided on the base portion and having an outlet hole through which the coffee liquid that has passed through the paper filter flows downward; an extension portion that connects the paper filter housing portion and the base portion and extends vertically therebetween to form an internal space that communicates with the outlet hole; having said paper filter accommodating portion receives the entire lower part of the paper filter when a trapezoidal paper filter is applied, and receives all of the lower part of the paper filter except for the tip when a conical paper filter is applied, so that the tip of the lower part of the paper filter protrudes, and said extension portion is formed to receive the tip of the lower part of the conical paper filter protruding from said paper filter accommodating portion.

2. 2. The coffee dripper according to claim 1, wherein a protruding step is provided on a portion of an inner wall surface from the paper filter housing portion to the extension portion, and the step is formed so as to support a lower end of the trapezoidal paper filter.

3. A cylindrical portion is provided on a bottom surface of the base portion so as to protrude downward and surround the outflow portion, and the cylindrical portion includes a pair of notches formed by cutting out two opposing portions, The base portion is disposed on the two cups so that the upper edge portions of the two cups cross between the pair of notches of the cylindrical portion, thereby making it possible to place the coffee dripper across the two cups.

2. The coffee dripper according to claim 1.

4. 4. The coffee dripper according to claim 3, wherein the outlet portion includes a pair of one or more outlet holes formed at symmetrical positions with respect to a center line passing through central positions of the pair of cutout portions.

5. 5. The coffee dripper according to claim 4, wherein an upper surface of the outflow portion is formed with an inclined surface that slopes downward from an end portion of the outflow portion toward the outflow hole, and an inclined surface that slopes downward from a central portion of the outflow portion toward the outflow hole.

6. 5. The coffee dripper according to claim 4, wherein the outlet portion includes a pair of two or more outlet holes, and one of the two or more outlet holes closest to the center line is formed to protrude downward further than the other outlet holes.

7. A coffee dripper for extracting coffee liquid by pouring hot water into a paper filter containing coffee powder, A paper filter storage section having an internal space for receiving a paper filter, the internal space having a cross-sectional area that decreases in a downward direction; A base portion provided below the paper filter storage portion and placed on a cup; an outlet portion provided on the base portion and having an outlet hole through which the coffee liquid that has passed through the paper filter flows downward; an extension portion that connects the paper filter storage portion and the base portion, extends vertically therebetween, and forms an internal space that communicates with the outlet hole, and has a substantially constant cross-sectional area; A coffee dripper comprising:

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