Beverage extraction bag, beverage extraction bag manufacturing sheet and coffee bag

Abstract

To provide a beverage extraction bag making it possible to select and use either a permeation type or an immersion type, and beverage extraction bag manufacturing sheet and coffee bag used therefor.SOLUTION: A beverage extraction bag comprises a bag-shaped filter, and a plate-shaped holder attached to a surface of the filter so as to sandwich the filter. In the filter, formed are a first opening that is openably closed, and a second opening in which a bag is closed so as to be openable with a space formed between itself and the first opening. The holder includes a first hook that when the filter is opened at a first opening part, allows the filter to be installed in the container with the first opening part facing upward, and a second hook that when the filter is opened at a second opening part, allows the filter to be installed in the container with the second opening part facing upward.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a beverage extraction bag, a beverage extraction bag manufacturing sheet, and a coffee bag. [Background technology]

[0002] Beverage extraction bags, so-called drip bags, that can be set in a container to extract a single cup of beverage such as coffee have been widely developed (for example, see Patent Document 1 below). Conventionally, beverage extraction bags include a permeable type that prevents the filter from being immersed in the extracted beverage when the bag is set in a container to extract the beverage, and an immersion type that extracts the beverage while immersing part of the filter in the extracted beverage. Since the permeable beverage extraction bag is not immersed in the extracted liquid, it may not be suitable when you want to pass the extraction material through hot water or water slowly or for a long time. On the other hand, the immersion drip bag may not be suitable when you do not want to immerse the raw material in hot water or water for a long time. Summary of the Invention [Problem to be solved by the invention]

[0003] However, conventional beverage extraction bags are only preset to be used in either a permeable or submerged manner, which can make it difficult to meet the user's preferences. Therefore, the present invention provides a beverage extraction bag that can be selectively used for either the permeable type or the immersion type, and a beverage extraction bag manufacturing sheet and a coffee bag used therein. [Means for solving the problem]

[0004] The filter includes a bag-shaped filter and a holder attached to a surface of the filter so as to sandwich the filter. The filter is formed with a first opening part that is closed so as to be openable, and a second opening part that is closed so as to be openable with a gap between the first opening part and the bag. The holder includes a horizontal attachment part that is attached to the filter along the first opening part, and an outer attachment part having a pair of side attachment parts that are bent and extend from both ends of the horizontal attachment part toward the bottom of the filter when the first opening part is an upper opening part, and a pair of side attachment parts that are bent from each tip of the pair of side attachment parts inside the pair of side attachment parts to form the side attachment parts. the filter holder has an inner adhesive portion extending horizontally toward the first opening portion with a gap therebetween, an arm portion disposed between the inner adhesive portions so as to be movable away from the filter, and a hook portion extending from the tip of the arm portion toward the pair of side adhesive portions and further along the side adhesive portions, and the arm portion has a first fold line which is a valley fold when viewed from the outer surface opposite the surface of the holder facing the filter when opening at the first or second opening portion, and a second fold line which is a mountain fold when viewed from the outer surface when opening at the first opening portion and is a valley fold when viewed from the outer surface when opening at the second opening portion. According to the present invention, a plurality of different hooking patterns for the arm portions and the hooking portions can be provided by changing the direction in which the arm portions are bent at the second folding lines.

[0005] The beverage extraction bag of the present invention comprises a bag-shaped filter and a holder attached to the surface of the filter so as to sandwich the filter, the filter being formed with a first opening portion that is closed so as to be openable and a second opening portion that is closed with a gap from the first opening portion so as to be able to open the bag, the holder having a first hanging portion that places the filter in a container with the first opening portion facing upward when the filter is opened at the first opening portion, and a second hanging portion that places the filter in a container with the second opening portion facing upward when the filter is opened at the second opening portion. According to the present invention, the extraction method or mode can be changed by changing the configuration of the holder in accordance with the opening.

[0006] The holder of the beverage extraction bag of the present invention has a central adhesive portion formed approximately in the center of the holder, an arm portion that is continuous with the central adhesive portion at the tip of the central adhesive portion, extends vertically along both side edges of the central adhesive portion and is formed so as to be able to be separated from the filter, and a first hanging portion that extends on both sides from the tip of the arm portion and is formed to surround the arm portion and the central adhesive portion, and the second hanging portion may be provided on the first hanging portion by cutting out the first hanging portion. According to this configuration, the second hook portion provided on the first hook portion makes it possible to provide a plurality of hook patterns for the holder.

[0007] The holder of the present invention has a central adhesive part formed in the approximate center of the holder, arm parts that are continuous with the central adhesive part at the tip part of the central adhesive part, extend vertically along both side edges of the central adhesive part, and are formed so as to be able to be separated from the filter, and the first hook parts that extend to both sides from the tip parts of the arm parts and are formed so as to surround the arm parts and the central adhesive part, The second hook portion may be provided by cutting out the arm portion so as to protrude from the first hook portion. According to this configuration, the second hook portion provided by cutting out the arm portion can provide a plurality of hooking patterns for the holder.

[0008] The holder of the present invention has a central adhesive portion formed approximately in the center of the holder, an arm portion that is continuous with the central adhesive portion at the tip of the central adhesive portion and extends vertically along both side edges of the central adhesive portion so as to be able to be separated from the filter, and a first hanging portion that extends to both sides from an upper end of the arm portion and is formed so as to surround the arm portion and the central adhesive portion, and the second hanging portion may be arranged to protrude from the first hanging portion by cutting out the central adhesive portion. According to this configuration, the second hook portion provided by cutting out the central adhesive portion can provide a plurality of hooking patterns for the holder.

[0009] The first opening portion and the second opening portion of the present invention are provided at positions opposite to each other, The filter may be configured so that an extraction structure is different between the first opening portion side and the second opening portion side. According to this configuration, the flavor and taste of the beverage can be changed depending on whether the first hooking part is used or the second opening part is used.

[0010] The coffee bag of the present invention may be any of the beverage extraction bags described above. The beverage extraction bag of the present invention can also be used as a coffee bag by leaving neither the first nor the second opening portion open.

[0011] The beverage extraction bag manufacturing sheet of the present invention has first and second opening portions formed at regular intervals in the longitudinal direction of a band-shaped filter, and a holder having a hanging portion as described in claim 1 or a holder having a first and second hanging portion as described in any one of claims 2 to 5 is attached between the first and second opening portions. According to this configuration, it is possible to easily manufacture the beverage extraction bag or coffee bag described above. Effect of the Invention

[0012] The beverage extraction bag and the beverage extraction bag manufacturing sheet of the present invention have the effect that they can be used selectively as either a permeable type or an immersion type. The beverage extraction bag of the present invention can also be applied to a so-called coffee bag in which coffee is poured without opening the filter. [Brief description of the drawings]

[0013] [Figure 1] 1 is a plan view showing a beverage extraction bag according to a first embodiment of the present invention in a state before use. FIG. [Diagram 2]1A is a perspective view showing a method of using the beverage extraction bag according to the first embodiment of the present invention, and FIG. 1B is a perspective view showing a method of using the beverage extraction bag according to the first embodiment of the present invention. [Diagram 3] FIG. 6 is a plan view showing a beverage extraction bag according to a second embodiment of the present invention in a state before use. [Figure 4] 1A is a perspective view showing a method of using a beverage extraction bag according to a second embodiment of the present invention, and FIG. 1B is a perspective view showing a method of using a beverage extraction bag according to a second embodiment of the present invention. [Diagram 5] FIG. 10 is a plan view showing a beverage extraction bag according to a third embodiment of the present invention in a state before use. [Figure 6] 1A is a perspective view showing a method of using a beverage extraction bag according to a third embodiment of the present invention, and FIG. 1B is a perspective view showing a method of using a beverage extraction bag according to the third embodiment of the present invention. [Figure 7] FIG. 10 is a plan view showing a beverage extraction bag according to a fourth embodiment of the present invention in a state before use. [Figure 8] 1A is a perspective view showing a method of using a beverage extraction bag according to a fourth embodiment of the present invention, and FIG. 1B is a perspective view showing a method of using a beverage extraction bag according to the fourth embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, a beverage extraction bag according to an embodiment of the present invention will be described with reference to the drawings, taking a coffee drip bag as an example. Note that the dimensions of each part in the drawings used in the following description are not necessarily the same as the actual ones, and can be changed as appropriate.

[0015] As shown in FIG. 1, a drip bag 1A of the first embodiment includes a bag-shaped filter 2 whose periphery is entirely closed, and a holder 3A fixed to an outer surface 2f of the filter 2. The filter 2 is formed by doubling up a base material such as a nonwoven fabric or a mesh sheet, with the outer periphery closed.

[0016] In this embodiment, the two overlapping substrates are formed in a rectangular bag shape, with the four sides forming the periphery of the substrate being completely closed. In this embodiment, one base material is folded and the three sides other than the folded side are sealed by heat sealing. Inside the bag-shaped filter 2, an extraction material such as coffee beans is enclosed.

[0017] The bag-like filter 2 formed in a rectangular shape has a first tearable portion 4 and a second tearable portion 5 formed along a pair of opposing sides 2a, 2b. The first opening portion 4 is formed linearly along one of the pair of sides, in the vicinity of the side 2a. The second opening portion 5 is formed linearly along the side 2b in the vicinity of the other side 2b of the pair of sides.

[0018] Both the first opening portion 4 and the second opening portion 5 are marked by printing or the like to make the opening portion easy to see, and the opening portion is configured to be easily torn by perforations or the like.

[0019] The material of the substrate is a nonwoven fabric or the like that contains at least a part of a thermoplastic resin or efficiently incorporates a thermoplastic resin and allows substrates to be easily bonded together. The substrate is preferably one that is highly smooth, for example, mirror-calendared or embossed on the entire surface, so that the fine powder of the ground coffee beans does not become entangled or become a cause of biting during the coffee bean filling process. In addition, it is even better if the substrate is water-repellent and oil-repellent. Specific materials for the substrate include, for example, a thermal bond nonwoven fabric, a spunbond nonwoven fabric, and a resin film.

[0020] Alternatively, the substrate may be a substrate obtained by bonding the above-mentioned nonwoven fabric, such as a thermally bonded nonwoven fabric, to a material, such as a melt-blown nonwoven fabric or heat-sealed paper, which has excellent filtering performance for filtering coffee powder and is characterized by not discharging fine powder, unnecessary oils and fats into the extracted liquid. Any substrate may be employed that is suitable for filtering the coffee extraction at the desired rate.

[0021] The holder 3A is formed in a substantially rectangular shape that generally matches the shape of the filter 2. The holder 3A has an attachment portion 6A formed roughly along the outer shape of the filter 2, an arm portion 7A extending roughly vertically at the left-right central portion of the holder 3A, and a hook portion 8A extending left-right at a tip 7t of the arm portion 7A and forming roughly an inverted U-shape.

[0022] The adhesive part 6A is formed by an outer adhesive part 11 formed in a substantially inverted U-shape, and an inner adhesive part 12 bent inward from the outer adhesive part 11 and extending substantially vertically. The outer attachment portion 11 has a horizontal attachment portion 10 extending along the horizontal side 2a of the filter 2 and side attachment portions 22 extending vertically from both ends of the horizontal attachment portion 10 along the left and right side edges 2c, 2d. The inner adhesive portion 12 extends horizontally from the outer adhesive portion 11 with a gap therebetween.

[0023] A fold line L1 is formed in the center of the width of the horizontal attachment portion 10, extending in the vertical direction so as to facilitate folding of the horizontal attachment portion 10. The arm portion 7A is adjacent to and between the left and right inner adhesive portions 12, 12 and extends vertically in the widthwise center of the holder 3A.

[0024] The width of the arm portion 7A is approximately half the width of the holder 3A on the side 3b opposite to the side 3a forming the horizontal attachment portion 10 (hereinafter referred to as the "base end 7s side of the arm portion 7A"). The width of the arm portion 7A then gradually decreases toward the horizontal attachment portion 10 (i.e., the "tip 7t side of the arm portion 7A"), and the tip 7t slightly protrudes on both sides and then tapers, resulting in the tip 7t of the arm portion 7A having a narrowed shape. The width of the tip 7t of the arm portion 7A is approximately one-third the width of the holder 3A.

[0025] The arm portion 7A is formed with a first folding line L2 and a second folding line L3 extending horizontally and spaced apart in the vertical direction. The first folding line L2 is provided on the base end portion 7s side of the arm portion 7A. The second folding line L3 is formed on the base end portion 7s side immediately of the protrusion that slightly protrudes from the tip portion 7t. Both the first and second bending lines L2, L3 are bent at their centers so as to slightly protrude toward the tip portion 7t, thereby allowing the arm portion 7 to have tension even when bent.

[0026] The hanging portion 8A has a shoulder portion 15 that is connected to the tip portion 7t of the arm portion 7A and extends in a band-like manner in the left-right direction, and a locking portion 16 that extends vertically from both left and right ends of the shoulder portion 15 along the outer adhesive portion 11. Shoulder 15 has a vertical length that allows it to exert an appropriate tension or elastic return force against bending (deformation) in the horizontal direction, which is the longitudinal direction. The vertical length of shoulder 15 depends on the thickness and layer configuration of holder 3A, but for holders 3A that are generally widely used, it is preferable that the vertical length be at least two-fifths of the overall vertical dimension of holder 3A.

[0027] In this embodiment, the locking portion 16 is bent and extends vertically from the shoulder portion 15. In this embodiment, the locking portion 16 extends substantially perpendicular to the shoulder portion 15. The angle of the locking portion 16 with respect to the shoulder portion 15 is not particularly limited. The holder 3A having the above configuration is fixed between the first tearing portion 4 and the second tearing portion 5 formed on the filter 2 to form the drip bag 1A.

[0028] The present invention is preferably applicable to a drip bag 1A having a bag-shaped filter 2 containing beverage extraction ingredients such as coffee beans, but can also be applied to a beverage extraction filter 2 that does not contain any beverage extraction ingredients.

[0029] Next, a method of using the drip bag 1A of this embodiment will be described. When extracting coffee or the like using the so-called permeation method in which the filter 2 is hardly immersed in the liquid poured into the container 100, the drip bag 1A is set upside down so that the base end 7s of the arm 7A is downward, as shown in Figure 2(a). The extraction ingredients such as coffee beans that have entered the filter 2 are collected at the bottom of the filter 2, and the bag of the filter 2 is opened by breaking the perforation of the first opening part 4.

[0030] When the hook portion 8A is pulled out with its outer surface 8f facing outward, the arm portion 7A is folded at the first folding line L2 as viewed from the outer surface 8f, and at the second folding line L3 as viewed from the outer surface 8f, so that the hook portion 8A extends toward the opening of the container 100. When the locking portion 16 of the hook portion 8A is disposed outside the container 100, the locking portion 16 stops the hook portion 8A from returning toward the filter 2 with the shoulder portion 15 of the hook portion 8A hanging on the opening of the container 100, and the drip bag 1A is stably installed in the container 100.

[0031] On the other hand, when you want to extract coffee by the so-called immersion method, in which the lower part of the filter 2 is immersed in the liquid poured into the container 100, set the top and bottom of the drip bag 1A so that the base end 7s of the arm part 7A is on the upper side, as shown in Fig. 2(b). After the extraction ingredients such as coffee beans contained in the filter 2 are gathered at the bottom, break the perforation of the first opening part 4 to open the filter 2.

[0032] Then, the first folding line L2 is folded in a valley as viewed from the outer surface 8f, and the second folding line L3 is folded in a mountain as viewed from the outer surface 8f so that the inner surface 8d of the hanging portion 8A (i.e., the surface facing the filter 2) faces outward, thereby turning it inside out, and the hanging portion 8A is drawn out toward the mouth side of the container 100. Then, the arm portion 7A is folded at the first folding line L1 and the second folding line L2, while the hanging portion 8A extends toward the container 100.

[0033] Therefore, when the locking portions 16, 16 of the hanging portion 8A are disposed outside the container 100, with the shoulder portion 15 of the hanging portion 8A resting on the opening of the container 100, the two locking portions 16, 16 stop the hanging portion 8A from returning toward the filter 2 side, and the drip bag 1A is stably installed in the container 100. After the drip bag 1A is set up as described above, hot water is poured from the opening of the first openable portion 4 or the second openable portion 5 to brew coffee.

[0034] As described above, the drip bag 1A of the present embodiment is provided with the first opening portion 4 and the second opening portion 5, and the usage pattern of the holder 3A can be selected according to the user's preference. Therefore, the present invention has an effect that a single drip bag 1A can provide a way of making a beverage according to the user's preference.

[0035] Next, a second embodiment of the present invention will be described with reference to FIG. As shown in Fig. 3, the drip bag 1B of the second embodiment is different from the drip bag 1A of the first embodiment mainly in the configuration of the holder 3B, so the description will be centered on the configuration of the holder 3B. Note that the same components as those of the drip bag 1A of the first embodiment are denoted by the same reference numerals and will not be described.

[0036] The holder 3B of the second embodiment mainly has an outer adhesive portion 11, a central adhesive portion 17B, arm portions 7B, 7B, a first hook portion 8B, and a second hook portion 9B. The outer adhesive portion 11 is provided along the four sides 2a to 2d that form the outer edge of the entire holder 3 B. The width dimension of the outer adhesive portion 11 is set to be approximately constant overall.

[0037] The horizontal attachment portion 18 provided along the first opening portion 4 of the outer attachment portion 11 has folding lines L4, L5 extending vertically at positions dividing the width of the horizontal attachment portion 18 into three equal parts. The folding lines L4, L5 facilitate a large opening of the filter 2. A central attachment portion 17B is provided adjacent to the central portion in the longitudinal direction of the horizontal attachment portion 18.

[0038] The central adhesive portion 17B is formed such that the left and right outer edges at the base end portion 17s connected to the horizontal adhesive portion 18 narrow in an arc shape, and then the width dimension increases vertically and slightly toward the second opening portion 5. The base end 17s and the tip end 17t of the central adhesive part 17B are fixed to the outer surface 2f of the filter 2. A part or the whole of the space between the base end 17s and the tip end 17t may be fixed to the filter 2, but in this embodiment, they are provided so as to be spaced apart from the filter 2 to a degree that they float slightly.

[0039] Arm portions 7B, 7B extending adjacent to both sides of the central adhesive portion 17B are connected to a tip portion 17t in the extending direction of the central adhesive portion 17B. The arm portion 7B extends along the central adhesive portion 17B toward the horizontal adhesive portion 18 with a substantially constant width dimension, is slightly cut out in the shape of the locking piece 20 described later, and then protrudes slightly outward, extending to a position where it reaches the horizontal adhesive portion 18, sandwiching the base end portion 17s of the central adhesive portion 17B.

[0040] An inner edge 7y of a tip 7t of the arm 7B in the extending direction has an arc shape that matches the shape of the base end 17s of the central adhesive part 17, and an outer edge 7p in the vicinity of the tip 7t extends vertically at a position that gives the arm 7B a certain width. A perforation L6 is provided on the outer edge 7p of the tip 7t to facilitate folding.

[0041] The inner edge 11y of the outer adhesive portion 11, and the outer edge 7p and inner edge 7y of the arm portion 7B excluding the folding line L6 are provided with slits so that they can be separated from each other. The first hook portion 8B is formed by being surrounded by the inner edge 11y of the outer adhesive portion 11, the outer edge 7p of the arm portion 7B, and the folding line L6.

[0042] Near either end of the horizontal attachment portion 18, there are formed notches 21 which form projections extending from the horizontal attachment portion 18. The notch 21 gradually widens toward the second opening portion 5 side, and the tip thereof has an arc shape. The notches 21 provide second hooking portions 9B that extend substantially vertically toward the first opening portion 4 in the holder 3 at both ends of the first hooking portion 8B along the horizontal adhesive portion 18. In order to achieve this configuration, the first hooking portion 8B has a width large enough to form the notches 21 between the arm portion 7B and the side adhesive portions 22, 22 (i.e., at least twice as large as the second hooking portion 9B).

[0043] The first hook portion 8B has a locking piece 20 formed by cutting out the arm portion 7B on the base end portion 7s side of the tip end portion 7t of the arm portion 7B. The locking piece 20 is cut out so as to be movable like a flap about a bending line formed in a substantially vertical direction at a position on the first hooking portion 8B side beyond the extension of the outer edge 7p of the arm portion 7B.

[0044] The first hook portion 8B is not fixed to the filter 2 and is separable from the outer surface 2f of the filter 2. The first hook portion 8B configured as above is formed roughly in a U-shape with a narrowed opening.

[0045] The second hook portion 9B extends to a position that is approximately the same as the vertical position of the locking piece 20. The width dimension of the second hook portion 9B is approximately the same as the width dimension of the outer adhesive portion 11, except for the base end portion. The holder 3B of the second embodiment has the above-mentioned configuration.

[0046] Next, a method of using the drip bag 1B of the second embodiment will be described. When you want to extract coffee by the permeation method, set the drip bag 1B so that the second opening part 5 opens at the top, i.e., the base end 7s of the arm part 7B is at the top, as shown in Figure 4(a). The coffee beans inside the filter 2 are collected at the bottom, and the second opening part 5 is broken to open the bag.

[0047] Then, the first hook portion 8B and the second hook portion 9B are pulled toward the opening of the container 100 with their outer surfaces facing outward, and the second hook portion 9B is hooked onto the outside of the container 100. This allows the notch 21 formed in the first hook portion 8B to fit into the opening, and the outside of the container 100 to be held down by the second hook portion 9B.

[0048] By installing the drip bag 1B in this manner, the notch 21 formed in the first hook portion 8B fits firmly into the opening of the container 100, and the second hook portion 9B presses the outer surface of the container 100, so that the drip bag 1B is stably installed in the container 100.

[0049] When you want to extract coffee by the immersion method, set the drip bag 1B so that the first opening part 4 opens upward, i.e., the base end 7s of the arm part 7B faces downward, as shown in Fig. 4(b). The coffee beans inside the filter 2 are collected at the bottom, and the second opening part 5 is broken to open the bag.

[0050] Then, the first hook portion 8B and the second hook portion 9B are pulled toward the opening of the container 100 with their outer surfaces facing outward, and the entire first hook portion 8B is hooked onto the outside of the container 100. This allows the outer edge 7p that protrudes slightly outward on the tip portion 7t side of the arm portion 7B to fit and hook onto the opening, and the first hook portion 8B can press the outer surface of the container 100.

[0051] When the drip bag 1B is installed in this manner, the entire first hook portion 8B is disposed on the outer surface of the opening of the container 100, and the drip bag 1B is stably installed. After the drip bag 1B is set in the manner described above, hot water is poured from the opening formed to brew coffee.

[0052] The drip bag 1B of this embodiment also has the first and second opening parts 4, 5 and the corresponding first and second hooking parts 8B, 9B, so that the usage pattern of the holder 3B can be selected according to the user's preference. Therefore, according to the present invention, the effect is that the single drip bag 1B can provide a way of pouring a beverage according to the user's preference.

[0053] Next, a drip bag 1C according to a third embodiment will be described with reference to FIG. The drip bag 1C of the third embodiment is different from the drip bag 1B of the second embodiment in that the second hook portion 9C of the holder 3C is formed by cutting out the arm portion 7C instead of the first hook portion 8C. In this embodiment, the configuration, actions, and effects that differ from the second embodiment will be mainly described, and the points that are common to the configuration, etc. of the second embodiment will be denoted by the same reference characters as in the first to fourth embodiments, but with different capital letters, AD, and the description thereof will be omitted.

[0054] The holder 3C of this embodiment, like the holder 3B of the second embodiment, comprises an outer adhesive portion 11, a central adhesive portion 17C, arm portions 7C, 7C, and first and second hook portions 8C, 9C, which are arranged in this order. The central adhesive portion 17C differs from the holder 3B of the second embodiment in that it extends in the vertical direction with approximately the same width.

[0055] The arm portion 7C has a width dimension in the lateral direction sufficient for cutting out the base end portion 7s side of the arm portion 7C to form the second hook portion 9C. The outer edge of the arm portion 7C outside the second hook portion 9C extends in a substantially straight line. The second hook portion 9C is formed with a width dimension slightly larger than the width dimension of the outer adhesive portion 11 or the first hook portion 8C. Therefore, the width dimension of the arm portion 7C is more than twice the width dimension of the second hook portion 9C.

[0056] The second hook portion 9C has a vertical dimension that is approximately half the vertical dimension of the arm portion 7C. Except for the above configuration, the drip bag 1C has almost the same configuration as the drip bag 1B of the second embodiment.

[0057] Next, a method of using the drip bag 1C of the third embodiment will be described. When extracting coffee by the permeation method, the drip bag 1C is set so that the second opening part 5 opens upward, i.e., the base end 7s of the arm part 7C faces upward, as shown in Fig. 6(a). Then, the second opening part 5 is opened, and the second hook part 9C is placed on the outside of the container 100 and hooked to fix the drip bag 1C. The procedure for use thereafter is the same as that of the drip bag 1B of the second embodiment. When the drip bag 1C is set in this manner, the second hook portion 9C presses the outer surface of the container 100, so that the drip bag 1C is stably set in the container.

[0058] When brewing by the immersion method, the drip bag 1C is set so that the first opening part 4 opens upward, i.e., the base end 7s of the arm part 7C is downward, as shown in Fig. 6(b). Then, the first opening part 4 is opened, and the entire first hooking part 8C is placed outside the container 100 and hooked to fix the drip bag 1C. The procedure for use thereafter is the same as that of the drip bag 1B of the second embodiment. When the drip bag 1C is installed in this manner, the entire first hook portion 8C is disposed on the outer surface of the opening of the container 100, and the drip bag 1C is stably installed.

[0059] The drip bag 1C of this embodiment also has two openings, and the usage pattern of the holder 3C can be selected according to the opening part to be opened. Therefore, according to the present invention, it is possible to provide a way of making a beverage according to the user's preference with one drip bag 1C.

[0060] Next, a drip bag 1D of a fourth embodiment will be described with reference to FIG. The drip bag 1D of the fourth embodiment is different from the drip bag 1C of the third embodiment in that the second hook portion 9D is formed by cutting out the central attachment portion 17D instead of the arm portion 7D. In this embodiment, the configuration, actions, and effects that differ from those of the third embodiment will mainly be described, and the points that are common to the configuration, etc. of the third embodiment will be denoted by the same reference characters as in the first to fourth embodiments, but with different capital letters, AD, and the description thereof will be omitted.

[0061] The holder 3D of this embodiment, like the holder 3C of the third embodiment, comprises an outer adhesive portion 11, a central adhesive portion 17D, arm portions 7D, 7D, and first and second hook portions 8D, 9D, which are arranged in this order. The central adhesive portion 17D has a region on the tip end 17t side that is sufficient for forming the second hook portion 9D by a notch.

[0062] The arm portion 7D and the outer adhesive portion 11 are formed to have substantially the same width dimension. The width of the first hook portion 8D is formed to be slightly larger than the arm portion 7D and the outer adhesive portion 11. The second hook portion 9D is formed in a substantially rectangular shape with a width dimension that is two to three times the width dimension of the arm portion 7D. The second hooking portion 9D has an opening 25 formed along its outer shape. As a result, the second hooking portion 9D can flexibly deform to fit the shape of the container 100 when hooked to the container 100.

[0063] Next, a method of using the drip bag 1D of the fourth embodiment will be described. When extracting coffee by the permeation method, the drip bag 1D is set so that the second opening part 5 opens upward, i.e., the base end 7s of the arm part 7D faces upward, as shown in Fig. 8(a). Then, the second opening part 5 is opened, and the second hook part 9D and the first hook part 8D are pulled out while the outer surface of the second hook part 9D faces outward, and the second hook part 9D is hung on the outside of the container 100. The procedure for use thereafter is the same as that of the drip bag 1C of the third embodiment. When the drip bag 1D is set in this manner, the entire first hook portion 8D presses the outer surface of the opening of the container 100, so that the drip bag 1D is stably set.

[0064] When brewing by the immersion method, the drip bag 1D is set upside down so that the first opening part 4 opens upward, i.e., the base end 7s of the arm part 7D faces downward, as shown in Fig. 8(b). Then, the first opening part 4 is opened, and the first hooking part 8D is pulled out while the outer surface of the first hooking part 8D faces outward, and the first hooking part 8D is hung on the outside of the container 100. The procedure for use thereafter is the same as that of the drip bag 1C of the third embodiment.

[0065] The drip bag 1D of the present embodiment also has two openings, so that the usage pattern of the holder 3D can be selected according to the user's preference. Therefore, the present invention has an effect that a single drip bag 1D can be used to provide a way of making a beverage according to the user's preference.

[0066] The beverage extraction bags 1A to 1D of each embodiment can be manufactured using a filter sheet in which a first opening portion 4 and a second opening portion 5 are formed at regular intervals along the longitudinal direction of a band-shaped filter 2, and any one of the holders 3A to 3D is attached between the first and second opening portions 4, 5. In this case, the first and second opening portions 4, 5 are provided in a direction perpendicular to the longitudinal direction.

[0067] In addition, the sheet of filter 2 may be made slightly more than twice the width of the beverage extraction bag 1A, etc., and any of the holders 3A-3D may be provided in two rows of the same type, folded in the center in the width direction, and welded at regular intervals in the longitudinal direction to form a bag. The first and second opening portions 4, 5 can also be provided after the holder 3A and the like are attached.

[0068] The present invention is not limited to the beverage extraction bags of the first to fourth embodiments described above, but can be applied by appropriately combining each embodiment. Moreover, the beverage extraction bag 1A of the present invention etc. can also be used as a coffee bag without opening the first or second opening portion 4, 5. Furthermore, the filter 2 of the beverage extraction bag 1A-1D of the present invention may be configured so that the extraction structure on the first tearable portion 4 side is different from that on the second tearable portion 5 side. [Explanation of symbols]

[0069] 1 Drip bag (beverage extraction bag) 2. Filters 3 Holder 4 First Opening 5 Second opening 6 Adhesive part 7A-7D Arm section 8A Latch part 8B-8D First retaining part 9B-9D Second retaining part 11 Outer adhesive part 17A-17D Center adhesive part

Claims

1. A bag-shaped filter and a holder attached to a surface of the filter so as to sandwich the filter, The filter is formed with a first opening portion that is closed so as to be openable, and a second opening portion that is closed so as to be spaced apart from the first opening portion so as to be openable; The holder has a horizontal attachment part attached to the filter along the first opening part, and an outer attachment part having a pair of side attachment parts bent and extending from both ends of the horizontal attachment part toward the bottom of the filter when the first opening part is an upper opening part; an inner adhesive portion bent from each tip of the pair of side adhesive portions on the inner side of the pair of side adhesive portions and extending toward the first opening portion while being spaced apart from the side adhesive portions in the horizontal direction; an arm portion provided between the inner attachment portions so as to be separable from the filter; a hook portion extending from a tip of the arm portion toward the pair of side attachment portions and further extending along the side attachment portions, The arm portion has a first folding line along which the holder is folded in a valley when viewed from an outer surface opposite to a surface facing the filter when the holder is opened at the first or second opening portion; The beverage extraction bag has a second fold line which is a mountain fold when viewed from the outer surface when opened at the first opening portion, and a valley fold when viewed from the outer surface when opened at the second opening portion.

2. A bag-shaped filter and a holder attached to a surface of the filter so as to sandwich the filter, The filter is formed with a first opening portion that is closed so as to be openable, and a second opening portion that is closed so as to be spaced apart from the first opening portion so as to be openable; The holder is a beverage extraction bag having a first hanging portion that, when the filter is opened at the first opening portion, causes the filter to be installed in a container with the first opening portion facing upward, and a second hanging portion that, when the filter is opened at the second opening portion, causes the filter to be installed in a container with the second opening portion facing upward.

3. the holder has a central adhesive part formed in the approximate center of the holder, arm parts that are continuous with the central adhesive part at the tip part of the central adhesive part, extend vertically along both side edges of the central adhesive part and are formed so as to be separable from the filter, and the first hook parts that extend to both sides from the tip parts of the arm parts and are formed so as to surround the arm parts and the central adhesive part, The beverage extraction bag according to claim 2 , wherein the second hanging portion is provided on the first hanging portion by cutting out the first hanging portion.

4. the holder has a central adhesive part formed in the approximate center of the holder, arm parts that are continuous with the central adhesive part at the tip part of the central adhesive part, extend vertically along both side edges of the central adhesive part and are formed so as to be separable from the filter, and the first hook parts that extend to both sides from the tip parts of the arm parts and are formed so as to surround the arm parts and the central adhesive part, The beverage extraction bag according to claim 2 , wherein the second hook portion is provided by cutting out the arm portion so as to protrude from the first hook portion.

5. the holder has a central adhesive part formed in the approximate center of the holder, arm parts that are continuous with the central adhesive part at the tip part of the central adhesive part, extend vertically along both side edges of the central adhesive part and are formed so as to be separable from the filter, and the first hook parts that extend to both sides from the upper end part of the arm parts and are formed so as to surround the arm parts and the central adhesive part, The beverage extraction bag according to claim 2 , wherein the second hook portion is provided by cutting out the central adhesive portion so as to protrude from a lower portion of the first hook portion.

6. The first opening portion and the second opening portion are provided at positions opposite to each other, The beverage extraction bag according to claim 1 , wherein the filter is configured so that an extraction structure is different between the first opening portion side and the second opening portion side.

7. A coffee bag using the beverage extraction bag according to any one of claims 1 to 5.

8. A first opening portion and a second opening portion are formed at regular intervals in the longitudinal direction of the band-shaped filter, A beverage extraction bag manufacturing sheet for producing the beverage extraction bag described in any one of claims 1 to 5, in which a holder having the hanging portion described in claim 1 or a holder having the first hanging portion and the second hanging portion described in any one of claims 2 to 5 is attached between the first opening portion and the second opening portion.

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