JP2017113615A - Drip filter storage body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drip filter storage body enabling utilization of a packaging bag after opening.SOLUTION: A drip filter storage body 1 includes a filter 10 and a packaging bag 20. The filter 10 prevents an extraction material to extract beverage from passing through but allows beverage extracted from the extraction material to pass through. The packaging bag 20 stores the filter 10 in a sealed state. The packaging bag 20 becomes cylindrical by opening an upper part 20a and a lower part 20b when opening. The filter 10 is fixed to the packaging bag 20 in a state in which a marginal part 10a is annularly expanded in an internal space of the packaging bag 20 after opening.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a drip filter container in which a drip filter for beverages is accommodated.

  Patent Document 1 describes a bag-shaped drip filter (drip bag). This drip bag includes a bag body having an opening at an upper end portion, and a latch member provided on two outer surfaces of the bag body facing each other. The bag body is filled with coffee powder. A drip bag is fixed to the said container by latching a latching member on the edge of containers, such as a coffee cup. In this state, coffee can be extracted from the coffee powder by pouring hot water from the opening of the bag body.

JP 2005-95319 A

  The aforementioned drip bag is accommodated in a sealed packaging bag before use. Therefore, the user purchases the drip filter container in which the drip bag is accommodated in the packaging bag. When using the drip bag, the packaging bag is opened and the drip bag is taken out from the package bag. Subsequent packaging bags are no longer needed and are treated as waste. As described above, the conventional drip filter container has a problem that the package bag after opening is not utilized.

  This invention is made | formed in view of the said subject, and it aims at providing the drip filter container which can utilize the packaging bag after opening.

  The drip filter container according to the present invention has a filter that allows the beverage to pass without passing through an extraction material from which the beverage is extracted, and the filter is sealed in a sealed state, and is opened and opened at the top and bottom when opened. And the filter is fixed to the packaging bag in a state in which the edge of the filter is annularly expanded in the internal space of the packaging bag after opening.

  In this drip filter container, the filter is fixed to a packaging bag that is opened so as to have a cylindrical shape. The filter is fixed in a state in which the edge is annularly expanded in the internal space of the packaging bag. For this reason, a drink can be extracted from the extraction material on a filter by setting a cylindrical packaging bag in containers, such as a cup, and pouring hot water from the opening of the upper part of a packaging bag. Thus, in this invention, the packaging bag after opening is used for extraction of a drink.

  ADVANTAGE OF THE INVENTION According to this invention, the drip filter container which can utilize the packaging bag after opening is implement | achieved.

It is a front view which shows one Embodiment of the drip filter container by this invention. It is a perspective view which shows the packaging bag 20 after opening. 3 is a front view showing the filter 10 taken out from the packaging bag 20. FIG. It is a perspective view which shows a mode that the filter 10 was fixed to the packaging bag 20 after opening. It is the top view which looked at the filter 10 and the packaging bag 20 of FIG. 4 from the top. FIG. 5 is a perspective view showing a state where the packaging bag 20 of FIG. 4 is set in a container 90. It is a front view which shows the packaging bag 20 which concerns on one modification. It is a perspective view which shows the state which the packaging bag 20 of FIG. 7 was opened and expanded in the cylinder shape. It is a front view which shows the packaging bag 20 which concerns on another modification. It is a front view which shows the packaging bag 20 which concerns on another modification. It is a front view which shows the packaging bag 20 which concerns on another modification. It is a front view which shows the packaging bag 20 which concerns on another modification. It is a front view which shows the packaging bag 20 which concerns on another modification. It is a front view which shows the state by which the lower part 20b was folded in the packaging bag 20 of FIG. FIG. 15 is a side view showing a state in which the packaging bag 20 of FIG. 14 is fixed to the container 90. It is a front view which shows the packaging bag 20 which concerns on another modification. It is a front view which shows the state by which the lower part 20b was folded in the packaging bag 20 of FIG. FIG. 18 is a side view showing a state in which the packaging bag 20 of FIG. 17 is fixed to the container 90. It is a front view which shows the packaging bag 20 which concerns on another modification.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same reference numerals are assigned to the same elements, and duplicate descriptions are omitted.

  FIG. 1 is a front view showing an embodiment of a drip filter housing according to the present invention. The drip filter housing 1 is a drip filter housing in which a beverage drip filter is housed, and includes a filter 10 (drip filter) and a packaging bag 20.

  The filter 10 allows the beverage extracted from the extraction material to pass without passing the extraction material from which the beverage is extracted. In this embodiment, the extraction material is coffee powder. The filter 10 has a bag shape whose entire periphery is closed. The diameter of the filter 10 monotonously decreases from the top of the filter 10 toward the bottom (bottom). Coffee powder (not shown) is confined in the filter 10. The filter 10 is configured such that an upper portion (edge portion 10a) is opened. Specifically, the opposing surfaces of the edge 10a of the filter 10 are bonded to each other so as to be peeled off. By applying an external force so that these surfaces are separated from each other, the edge portion 10a of the filter 10 can be opened. As a material of the filter 10, for example, a nonwoven fabric can be used.

  The filter 10 is accommodated in the packaging bag 20. The packaging bag 20 is sealed. That is, the packaging bag 20 accommodates the filter 10 in a sealed state. The packaging bag 20 is provided with opening openings (not shown) at two locations on the top and bottom.

  FIG. 2 is a perspective view showing the packaging bag 20 after opening. As shown in the figure, the upper part 20a and the lower part 20b of the packaging bag 20 can be opened by opening from the aforementioned opening. Thus, the packaging bag 20 becomes cylindrical by opening the upper part 20a and the lower part 20b at the time of opening. As a material of the packaging bag 20, for example, plastic and / or aluminum can be used. The packaging bag 20 may consist of an aluminum vapor deposition film in which an aluminum layer is provided inside the plastic layer.

  FIG. 3 is a front view showing the filter 10 taken out from the packaging bag 20. The filter 10 is provided with an adhesive material 12. The adhesive material 12 is preferably provided over the entire edge portion 10 a of the filter 10. The adhesive material 12 is for attaching the filter 10 to the inner surface of the packaging bag 20. The adhesive material 12 is covered with release paper (not shown). By removing the release paper after removing the filter 10 from the packaging bag 20, the filter 10 can be attached to the inner surface of the packaging bag 20 via the adhesive material 12. As the adhesive material 12, for example, an adhesive tape can be used. 1 and the like, the illustration of the adhesive material 12 is omitted.

  FIG. 4 is a perspective view showing a state in which the filter 10 is fixed to the packaging bag 20 after opening. As shown in the figure, the filter 10 is fixed to the packaging bag 20 in a state in which the edge portion 10a is annularly expanded in the internal space of the packaging bag 20 after opening. At this time, the extending direction of the edge 10 a of the filter 10 coincides with the circumferential direction of the packaging bag 20. The filter 10 is fixed to the packaging bag 20 by being affixed to the inner surface of the packaging bag 20 via the adhesive material 12 described above. Specifically, the filter 10 is attached to the inner surface of the packaging bag 20 at the edge 10a. It is preferable that the entire edge portion 10 a of the filter 10 is attached to the inner surface of the packaging bag 20. The filter 10 is not fixed to the packaging bag 20 before opening.

  FIG. 5 is a plan view of the filter 10 and the packaging bag 20 of FIG. 4 as viewed from above. As can be seen from the figure, the length of the edge 10 a is equal to the length of the inner surface of the packaging bag 20 in the plane including the entire edge 10 a of the filter 10.

  Returning to FIG. 1, a viewing window 22 is provided in a part of the packaging bag 20 so that the inside of the packaging bag 20 can be visually recognized from the outside. The viewing window 22 is located in a region between the lower portion 20b of the packaging bag 20 and the filter 10 in a state where the filter 10 is fixed to the packaging bag 20 (see FIG. 4). The viewing window 22 is formed by making the part of the packaging bag 20 transparent. For example, when the packaging bag 20 is made of an aluminum vapor deposition film, the aluminum bag is not provided on the part of the packaging bag 20 and the portion may be made of only a transparent plastic layer. An opaque seal may be detachably attached to the outer surface of the packaging bag 20 so as to cover the viewing window 22. In that case, the viewing window 22 can be exposed by peeling off the seal.

  A plastic member 32 (first plastic member) and a plastic member 34 (second plastic member) are attached to the packaging bag 20. The plastic member 32 and the plastic member 34 are attached to the inner surface of the packaging bag 20. The plastic member 32 and the plastic member 34 are disposed at different positions. The plastic member 32 is located in a region between the upper portion 20 a of the packaging bag 20 and the filter 10 in a state where the filter 10 is fixed to the packaging bag 20. On the other hand, the plastic member 34 is located in a region between the lower portion 20 b of the packaging bag 20 and the filter 10 in a state where the filter 10 is fixed to the packaging bag 20.

  The plastic member 32 has a linear shape or a belt shape, and extends along the circumferential direction of the packaging bag 20. The plastic member 32 extends over the entire circumferential direction of the packaging bag 20. The plastic member 32 plastically deforms following the deformation of the packaging bag 20. Similarly, the plastic member 34 has a linear shape or a band shape, and extends along the circumferential direction of the packaging bag 20. The plastic member 34 extends in the entire circumferential direction of the packaging bag 20. The plastic member 34 plastically deforms following the deformation of the packaging bag 20. As a material of each plastic member 32, 34, for example, metal or plastic can be used. In FIGS. 2, 4 and 5, the plastic members 32 and 34 are not shown.

  Then, an example of the usage method of the drip filter container 1 is demonstrated. First, the packaging bag 20 is opened, the filter 10 is taken out, and the upper part 20a and the lower part 20b of the packaging bag 20 are opened. Next, after opening the edge 10 a of the filter 10, the filter 10 is attached to the inner surface of the packaging bag 20 via the adhesive material 12. Thereafter, as shown in FIG. 6, the packaging bag 20 to which the filter 10 is fixed is set so as to cover the container 90. The container 90 is a container that receives the extracted beverage (coffee). The container 90 is, for example, a coffee cup. At this time, the height of the packaging bag 20 can be adjusted as necessary by folding back the lower portion 20b of the packaging bag 20. Thereafter, hot water is poured from the opening of the upper portion 20 a of the packaging bag 20 to extract coffee from the coffee powder on the filter 10. The extracted coffee passes through the filter 10 and falls into the container 90.

  The effect of the drip filter container 1 will be described. In the drip filter container 1, the filter 10 is fixed to the packaging bag 20 that has been opened so as to have a cylindrical shape. The filter 10 is fixed in a state where the edge portion 10a is annularly expanded in the internal space of the packaging bag 20. For this reason, coffee can be extracted from the coffee powder on the filter 10 by setting the cylindrical packaging bag 20 in the container 90 and pouring hot water from the opening of the upper part 20a of the packaging bag 20. Thus, in this embodiment, the packaging bag 20 after opening is used for extraction of coffee. Therefore, the drip filter container 1 that can utilize the packaging bag 20 after opening is realized.

  Moreover, since extraction of coffee is performed in a state where the filter 10 is covered with the packaging bag 20, there is an advantage that hot water and coffee are difficult to cool during extraction. Thereby, coffee powder becomes easy to be steamed and more delicious coffee can be extracted.

  The filter 10 is fixed to the packaging bag 20 by being attached to the inner surface of the packaging bag 20. For this reason, the filter 10 can be easily and stably fixed to the packaging bag 20.

  The filter 10 is adhered to the inner surface of the packaging bag 20 at the edge 10a. Thereby, it becomes difficult to produce a clearance gap between the edge part 10a of the filter 10, and the inner surface of the packaging bag 20. FIG. In particular, when the entire edge portion 10a of the filter 10 is attached to the inner surface of the packaging bag 20, it is possible to reliably prevent a gap from being generated between the edge portion 10a of the filter 10 and the inner surface of the packaging bag 20. If such a gap is generated, hot water poured from the opening of the upper portion 20 a of the packaging bag 20 may spill out of the filter 10.

  The filter 10 is provided with an adhesive material 12. For this reason, the filter 10 can be adhered to the inner surface of the packaging bag 20 without separately preparing means for adhering the filter 10 to the inner surface of the packaging bag 20.

  The filter 10 is not fixed to the packaging bag 20 before opening. In this case, the filter 10 can be easily taken out from the packaging bag 20. By once taking out the filter 10 from the packaging bag 20, it becomes easy to open the edge 10 a of the filter 10 or remove the release paper on the adhesive material 12.

  The filter 10 has a bag shape. Thereby, coffee powder can be put in the filter 10 before the packaging bag 20 is opened. In particular, the filter 10 has a bag shape whose entire periphery is closed. Thereby, coffee powder can be confined in the filter 10. Thus, the coffee powder is confined in the filter 10, so that the coffee powder can be prevented from scattering in the packaging bag 20.

  The diameter of the filter 10 monotonously decreases from the upper part of the filter 10 toward the lower part. Increasing the diameter of the upper portion (edge portion 10 a) of the filter 10 in this way is advantageous for reliably leading hot water into the filter 10. On the other hand, reducing the diameter of the lower portion of the filter 10 is advantageous for reliably guiding the extracted coffee into the container 90.

  A viewing window 22 is provided in the packaging bag 20. Thereby, even from the outside of the packaging bag 20, the coffee extraction status (for example, the amount of coffee accumulated in the container 90) can be confirmed. However, providing the viewing window 22 is not essential.

  The viewing window 22 is formed by making a part of the packaging bag 20 transparent. Thereby, the structure which can visually recognize the inside from the exterior of the packaging bag 20 is easily realizable, maintaining the airtightness of the packaging bag 20 before opening.

  When an opaque seal is attached to the outer surface of the packaging bag 20 so as to cover the viewing window 22, it is possible to prevent light from entering the packaging bag 20 before opening through the viewing window 22. If the light enters the inside of the packaging bag 20, the coffee powder tends to deteriorate.

  Plastic members 32 and 34 that are plastically deformed following the deformation of the packaging bag 20 are attached to the packaging bag 20. Thereby, it becomes easy to maintain the state which the packaging bag 20 expanded in the cylinder shape. In particular, since the plastic member 32 is located in a region between the upper portion 20a of the packaging bag 20 and the filter 10, it is useful for maintaining the state in which the upper portion 20a of the packaging bag 20 is opened. On the other hand, since the plastic member 34 is located in a region between the lower portion 20b of the packaging bag 20 and the filter 10, it helps to maintain the state in which the lower portion 20b of the packaging bag 20 is opened. However, providing the plastic members 32 and 34 is not essential.

  The plastic members 32 and 34 extend along the circumferential direction of the packaging bag 20. Thereby, even if it reduces the area of each plastic member 32 and 34, it can prevent efficiently that the packaging bag 20 is crushed. In particular, the plastic members 32 and 34 extend in the entire circumferential direction of the packaging bag 20. Thereby, the state which the packaging bag 20 expanded to the cylinder shape can be maintained more stably.

  The present invention is not limited to the above embodiment, and various modifications can be made. In the said embodiment, as shown in FIG. 7, the inner diameter of the packaging bag 20 may differ in the upper area | region 24a and the lower area | region 24b. Here, the inner diameter of the packaging bag 20 is defined as the diameter (inner dimension) when the packaging bag 20 is expanded into a cylindrical shape. The upper region 24a is a region from the upper portion 20a to the intermediate portion 20c in the packaging bag 20. The lower region 24b is a region from the lower portion 20b to the intermediate portion 20c in the packaging bag 20. The intermediate part 20c only needs to exist between the upper part 20a and the lower part 20b of the packaging bag 20, and does not need to exist in the position which divides the packaging bag 20 into two equal parts.

  In this example, a gusset 26 a (first gusset) and a gusset 26 b (second gusset) are formed on the side surface of the packaging bag 20. The gusset 26a is formed on the side surface of the packaging bag 20 in the upper region 24a. On the other hand, the gusset 26b is formed on the side surface of the packaging bag 20 in the lower region 24b. The width w1 of the gusset 26a is smaller than the width w2 of the gusset 26b. Thereby, as shown in FIG. 8, when the packaging bag 20 is expanded in a cylindrical shape, the inner diameter of the packaging bag 20 in the upper region 24a is smaller than the inner diameter of the packaging bag 20 in the lower region 24b.

  Thus, by making the inner diameter of the packaging bag 20 in the upper region 24a smaller than the inner diameter of the packaging bag 20 in the lower region 24b, the intermediate portion 20c can be placed on the edge of the container. Thereby, the packaging bag 20 can be easily fixed to the container. Further, by forming the plurality of gussets 26a and 26b having different widths as described above, the width of the packaging bag 20 is made uniform before the packaging bag 20 is opened (when the gussets 26a and 26b are folded). can do.

  Note that the configuration in which the inner diameter of the packaging bag 20 in the upper region 24a is smaller than the inner diameter of the packaging bag 20 in the lower region 24b is shown in FIG. 9, only in the lower region 24b of the upper region 24a and the lower region 24b. It can also be realized by forming a gusset 26 c on the side surface of the bag 20. Moreover, the said structure is realizable also by crimping | bonding a part of side surface of the packaging bag 20, as shown in FIG.10 and FIG.11. In these drawings, the portion where the side surface of the packaging bag 20 is crimped is hatched.

  In FIG. 10, the side surface of the packaging bag 20 is crimped in both the upper region 24a and the lower region 24b. However, the width w3 of the portion where the side surface of the packaging bag 20 in the upper region 24a is crimped is larger than the width w4 of the portion where the side surface of the packaging bag 20 in the lower region 24b is crimped. In FIG. 11, the side surface of the packaging bag 20 is crimped only in the upper region 24a of the upper region 24a and the lower region 24b.

  In the said embodiment, as shown in FIG. 12, the internal diameter of the packaging bag 20 may become monotonously small as it goes to the intermediate part 20c from the upper part 20a of the packaging bag 20. As shown in FIG. Also in this figure, a part of the side surface of the packaging bag 20 (the hatched portion) is crimped. Specifically, the side surface of the packaging bag 20 is crimped in the upper region 24a. The width of the portion where the side surface of the packaging bag 20 is crimped increases monotonously from the upper portion 20a toward the intermediate portion 20c. The inner diameter of the packaging bag 20 at the lower end of the upper region 24a is set to such a size that the filter 10 does not fall into the lower region 24b. When the inner diameter of the packaging bag 20 in the upper region 24a is not constant as in this example, the magnitude relationship between the inner diameter of the packaging bag 20 in the upper region 24a and the inner diameter of the packaging bag 20 in the lower region 24b is the same as in the upper region 24a. The determination is made based on the magnitude relationship between the average value of the inner diameter of the packaging bag 20 and the inner diameter of the packaging bag 20 in the lower region 24b. The same applies when the inner diameter of the packaging bag 20 in the lower region 24b is not constant.

  In this way, when the inner diameter of the packaging bag 20 is monotonically smaller as it goes from the upper portion 20a to the intermediate portion 20c, the filter 10 can be fixed to the packaging bag 20 only by placing the filter 10 on the upper region 24a. That is, the filter 10 can be fixed to the packaging bag 20 without attaching the filter 10 to the packaging bag 20.

  In the above embodiment, the packaging bag 20 may be provided with a fixing member for fixing the packaging bag 20 to the container. As the fixing member, for example, a latching member 42 shown in FIG. 13 can be used. The latch member 42 is attached to the inner surface of the packaging bag 20. Specifically, two hooking members 42 are attached to the inner surface of the packaging bag 20 so as to face each other. As shown in FIG. 14, the hooking member 42 can be exposed to the outside of the packaging bag 20 by folding the lower portion 20 b of the packaging bag 20 outward. As shown in FIG. 15, the packaging bag 20 is fixed to the container 90 by the hooking member 42 being hooked on the edge of the container 90. As a material of the latch member 42, for example, paper can be used.

  By providing the fixing member in this way, the packaging bag 20 can be more stably fixed to the container 90. Moreover, since the fixing member is attached to the inner surface of the packaging bag 20, the fixing member is not exposed to the outside of the packaging bag 20 before opening, which is hygienic. However, the fixing member may be attached to the outer surface of the packaging bag 20. In that case, there is no need to fold back the lower portion 20b of the packaging bag 20.

  In addition, as a fixing member, as shown in FIG. 16, you may use the cyclic | annular member 44 which has a stretching property. As the annular member 44, for example, a rubber band can be used. The annular member 44 is attached to the inner surface of the packaging bag 20. Specifically, two annular members 44 are attached to the inner surface of the packaging bag 20 so as to face each other. As shown in FIG. 17, the annular member 44 can be exposed to the outside of the packaging bag 20 by folding the lower portion 20 b of the packaging bag 20 outward. As shown in FIG. 18, the packaging bag 20 is fixed to the container 90 by being hooked to the bottom of the container 90 in a state where the annular member 44 is extended.

  Further, as shown in FIG. 19, a planned cut line 28 may be formed on the side surface of the packaging bag 20. The cut line 28 is a perforation, for example. In the figure, two cut lines 28 are formed. Each cut line 28 extends in the width direction of the packaging bag 20 (left-right direction in the figure). The two scheduled cutting lines 28 exist on the same straight line. One planned cut line 28 extends from the left end of the packaging bag 20 to the middle of the packaging bag 20. The other scheduled cutting line 28 extends from the right end of the packaging bag 20 to the middle of the packaging bag 20. However, the two scheduled cutting lines 28 are not continuous. After opening the packaging bag 20, the portion can be hooked on the edge of the container by making a cut in the packaging bag 20 along the planned cutting line 28.

  In the said embodiment, the case where the filter 10 was affixed on the inner surface of the packaging bag 20 in the edge part 10a was illustrated. However, the filter 10 may be attached to the inner surface of the packaging bag 20 at a portion other than the edge portion 10a.

  In the said embodiment, the case where the adhesive material 12 was provided in the filter 10 was illustrated. However, the adhesive material 12 may be provided in the packaging bag 20. However, it is not essential to provide the adhesive material 12. The filter 10 may be attached to the inner surface of the packaging bag 20 via a separately prepared adhesive material.

  In the said embodiment, the case where the coffee powder was previously contained in the packaging bag 20 was illustrated. However, coffee powder may not be contained in the packaging bag 20. In that case, after fixing the filter 10 to the packaging bag 20, coffee powder may be supplied into the packaging bag 20 (on the filter 10).

  In the said embodiment, the case where the filter 10 was carrying out the bag shape was illustrated. However, it is not essential that the filter 10 has a bag shape. For example, the filter 10 may have a flat sheet shape.

  In the said embodiment, the case where extraction material was coffee powder was illustrated. However, the extraction material may be a material other than coffee powder as long as the beverage can be extracted on the filter 10. Examples of the extraction material other than the coffee powder include green tea leaves, black tea leaves, and herbal medicines.

DESCRIPTION OF SYMBOLS 1 Drip filter container 10 Filter 10a Edge part 12 Adhesive material 20 Packaging bag 20a Upper part 20b Lower part 20c Middle part 22 Viewing window 24a Upper area | region 24b Lower area | region 26a Gazette (1st gusset)
26b Gazette (second gusset)
26c gusset 28 cutting line 32 plastic member (first plastic member)
34 Plastic member (second plastic member)
42 Hanging member (fixing member)
44 Ring member (fixing member)
90 containers

Claims (29)

A filter that passes the beverage without passing through the extraction material from which the beverage is extracted;
The filter is housed in a sealed state, and includes a packaging bag that has a cylindrical shape by opening the upper part and the lower part when opened,
The drip filter container, wherein the filter is fixed to the packaging bag in a state in which an edge of the filter is annularly expanded in the internal space of the packaging bag after opening. In the drip filter container according to claim 1,
The filter is a drip filter container fixed to the packaging bag by being attached to the inner surface of the packaging bag. In the drip filter container according to claim 2,
The filter is a drip filter container that is adhered to the inner surface of the packaging bag at the edge of the filter. In the drip filter container according to claim 3,
A drip filter container in which the entire edge of the filter is adhered to the inner surface of the packaging bag. The drip filter container according to any one of claims 2 to 4,
The drip filter container in which the adhesive material for sticking the said filter on the said inner surface of the said packaging bag is provided in the said filter. In the drip filter container according to any one of claims 1 to 5,
The filter is a drip filter container that is not fixed to the packaging bag before opening. The drip filter container according to any one of claims 1 to 6,
The filter is a drip filter container having a bag shape. The drip filter container according to claim 7,
The filter is a drip filter container having a bag shape with the entire periphery closed. The drip filter container according to claim 8,
A drip filter container in which the extraction material is confined in the filter. In the drip filter container according to any one of claims 7 to 9,
The diameter of the filter is a drip filter housing that monotonously decreases as it goes from the upper part to the lower part of the filter. In the drip filter container according to any one of claims 1 to 10,
A drip filter container in which the inner diameter of the packaging bag monotonously decreases as it goes from the upper part to the middle part of the packaging bag. The drip filter container according to any one of claims 1 to 11,
A drip filter container in which a first plastic member that plastically deforms following the deformation of the packaging bag is attached to the packaging bag. The drip filter container according to claim 12,
The first plastic member is a drip filter container that extends along a circumferential direction of the packaging bag. The drip filter container according to claim 13,
The first plastic member is a drip filter container that extends in the entire circumferential direction of the packaging bag. The drip filter container according to any one of claims 12 to 14,
The first plastic member is a drip filter container positioned in a region between the upper portion of the packaging bag and the filter in a state where the filter is fixed to the packaging bag. In the drip filter container according to any one of claims 12 to 15,
A drip filter container, wherein a second plastic member that is plastically deformed following the deformation of the packaging bag is attached to the packaging bag at a position different from the first plastic member. The drip filter container according to claim 16,
The second plastic member is a drip filter container extending along the circumferential direction of the packaging bag. The drip filter container according to claim 17,
The second plastic member is a drip filter container that extends in the entire circumferential direction of the packaging bag. The drip filter container according to any one of claims 16 to 18,
The second plastic member is a drip filter container that is located in a region between the lower portion of the packaging bag and the filter in a state where the filter is fixed to the packaging bag. The drip filter container according to any one of claims 1 to 19,
A drip filter container in which a viewing window is provided in a part of the packaging bag so that the inside of the packaging bag can be visually recognized from the outside. The drip filter container according to claim 20,
The viewing window is a drip filter container formed by making the part of the packaging bag transparent. The drip filter container according to claim 20 or 21,
A drip filter container in which an opaque seal is detachably attached to an outer surface of the packaging bag so as to cover the viewing window. The drip filter container according to any one of claims 1 to 22,
The drip filter container in which the fixing member for fixing the said packaging bag to the container which receives the said drink extracted from the said extraction material is provided in the said packaging bag. The drip filter container according to claim 23,
The fixing member is a drip filter container attached to the inner surface of the packaging bag. The drip filter container according to claim 23 or 24,
The drip filter container in which the said packaging bag is provided with the latching member latched by the edge of the said container as the said fixing member. In the drip filter container according to any one of claims 23 to 25,
The packaging bag is provided with a stretchable annular member as the fixing member,
The annular member is a drip filter container that is hooked to the bottom of the container in an extended state. In the drip filter container according to any one of claims 1 to 26,
When the region from the upper portion to the middle portion of the packaging bag is the upper region, and the region from the middle portion to the lower portion of the packaging bag is the lower region,
A drip filter container in which the inner diameter of the packaging bag in the upper region is smaller than the inner diameter of the packaging bag in the lower region. The drip filter container according to claim 27,
A drip filter container in which a gusset is formed on a side surface of the packaging bag only in the lower region of the upper region and the lower region. The drip filter container according to claim 27,
A first gusset is formed on the side surface of the packaging bag in the upper region, and a second gusset is formed on the side surface of the packaging bag in the lower region,
A drip filter housing in which the width of the first gusset is smaller than the width of the second gusset.

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