Drip bags

Abstract

We provide drip bags that allow you to avoid touching the filter as much as possible and that are easy to open. [Solution] The drip bag 1A of the present invention comprises a filter 2 formed by overlapping filter materials for beverage extraction to form a front portion 2a and a rear portion 2b, with the upper edge, lower edge and left and right edges of the overlapping front portion 2a and rear portion 2b closed, and a holder 3A fixed to the front portion 2a and rear portion 2b. The holder 3A has an upper attachment portion which is fused to the front portion 2a and rear portion 2b along the upper edge, and a tab 4 which protrudes above the upper attachment portion to open the filter 2, and the inner surface of the tab 4 has a tab fusion portion 4L which is fused to the front portion 2a and rear portion 2b.

Description

Technical Field

[0004] ,

[0001] The present invention relates to a drip bag.

Background Art

[0002] Drip bags have been widely developed in which ground coffee beans or the like are enclosed in a filter, the upper part of the filter is opened when making coffee, a holder (also called "clip paper") fixed to the filter is hung on a cup, and hot water is poured to easily brew extracted coffee. As a method of opening the bag-shaped filter, there are a method of breaking and separating the upper end portion of the filter along a perforation, a method of horizontally stretching the upper end portion of the filter in which the surfaces of the upper end portion of the filter are overlapped and heat-sealed so as to be easily unsealed to form a seam of the filter, and a method of opening the seam by pressing the upper end portion of the filter with a finger.

Summary of the Invention

Problems to be Solved by the Invention

[0003] However, according to the method of breaking and removing the upper end portion of the filter along the perforation, the cut ends become garbage, so the processing is troublesome. Further, according to the method of opening the seam of the heat-sealed filter by pressing the upper end portion of the filter with a finger, it is necessary to press the portion filled with hot water with a finger, so there is a problem that it may be disliked by users from the hygienic point of view. Therefore, the present invention provides a drip bag that can avoid touching the filter as much as possible and can be easily opened.

Means for Solving the Problems

[0004] The drip bag of the present invention comprises a filter formed by overlapping filter materials for beverage extraction to form a front portion and a rear portion, with the top edge, bottom edge and left and right edges of the overlapping front portion and rear portion closed, and a holder fixed to the front portion and rear portion, wherein the holder has an upper attachment portion fused to the front portion and rear portion along the upper edge, and a tab protruding above the upper attachment portion to open the filter, and the inner surface of the tab has a tab fusion portion fused to the front portion and rear portion, respectively. With this configuration, the filter can be easily and stably opened from the fused portion of the tab by placing a finger on it.

[0005] A V-shaped notch may be formed at the leading edge of the tab of the drip bag of the present invention, and a slit or semi-slit may be formed below the notch, extending downward at a distance from the bottom of the notch. This configuration makes it easier to see the bending position of the holder due to the V-shaped notch, and also makes bending the holder easier.

[0006] The tab fixed to the front portion of the drip bag of the present invention and the tab fixed to the rear portion may have overlapping portions when viewed in the direction of overlap between the front portion and the rear portion. This configuration makes it easy to open the filters starting from near the center of the width direction where the tabs overlap.

[0007] The holder of the drip bag of the present invention has a front portion and a filter holding portion having side portions adjacent to both sides of the front portion via slits that extend vertically and facilitate bending of the holder, and a leg portion extending from below the side portion toward the center in the width direction of the front portion, wherein the leg portion may be formed to rise from the filter in conjunction with bending between the side portion and the front portion. This configuration makes it easier to create a three-dimensional drip bag.

[0008] In the drip bag of the present invention, one of the legs extends from below one side surface toward the other side surface, beyond the center line in the width direction of the front surface, to below the front surface, and the other leg extends from below the other side surface toward the one side surface, beyond the center in the width direction of the front surface, to below the front surface, and the one leg and the other leg may be adjacent to each other in a vertical positional relationship. With this configuration, the legs are positioned so that they are one above the other, making it easier to make the width of the holder compact, while still ensuring sufficient leg length.

[0009] The holders fixed to the front and rear portions of the drip bag of the present invention are formed by folding one of their sides together to form a fold line, and are fixed to the front and rear portions while sandwiching the bag from either the left or right side of the bag, and the lower edge of the leg formed on the side portion having the fold line may be positioned on the upper edge side of the lower edge of the adjacent leg. This configuration allows for correction of the tilt of the drip bag when it is placed in a container or other object in a three-dimensional shape.

[0010] The holder of the drip bag of the present invention may have a front portion in the width direction and side portions adjacent to the front portion on both sides via folding slits, and the front portion and the side portions fixed to the filter, and may have an opening leg portion extending from below one of the left or right side portions adjacent to the front portion toward the center in the width direction of the front portion, and rising from the filter in conjunction with the folding between the one side portion and the front portion, and a leg portion extending from below the front portion along the surface of the front portion in the same direction as the opening leg portion. This configuration makes it easier to create a three-dimensional drip bag.

[0011] The holders fixed to the front and rear portions of the drip bag of the present invention are formed by folding one of their sides together to form a fold line, and are fixed to the front and rear portions while sandwiching the bag from either the left or right side of the bag, and the lower edge of the leg formed on the side portion having the fold line may be positioned on the upper edge side of the lower edge of the adjacent leg. This configuration allows for correction of the tilt of the drip bag when it is placed in a container or other object in a three-dimensional shape. [Effects of the Invention]

[0012] This invention offers the advantage of minimizing contact with the filter while allowing for easy opening. [Brief explanation of the drawing]

[0013] [Figure 1] This is a front view showing a drip bag according to the first embodiment of the present invention. [Figure 2] This is a front view showing the manufacturing process of a drip bag according to the first embodiment of the present invention. [Figure 3] This is a plan view showing a method for opening a drip bag according to the first embodiment of the present invention. [Figure 4] This is a perspective view showing a drip bag according to the first embodiment of the present invention in a three-dimensional form and placed in a cup. [Figure 5] This is a plan view showing a drip bag according to the first embodiment of the present invention in a three-dimensional form and placed in a cup. [Figure 6] This is a front view showing a drip bag according to a second embodiment of the present invention. [Figure 7] This is a plan view showing a drip bag according to the second embodiment of the present invention in a three-dimensional form and placed in a cup. [Figure 8] This is a front view showing a modified example of a drip bag according to the first embodiment of the present invention. [Figure 9]It is a front view showing a drip bag according to a third embodiment of the present invention. [Figure 10] It is a perspective view (photo) showing a drip bag according to a third embodiment of the present invention.

Mode for Carrying Out the Invention

[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the dimensions of each part of 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 according to a first embodiment of the present invention has a filter 2 formed in a rectangular bag shape and a holder 3A fixed to the filter 2.

[0016] The filter 2 is a bag-shaped member in which the upper side 2t, the lower side 2e, and the left and right sides 2c and 2d of two filter materials formed in the same size of rectangle are aligned and the four sides are closed. Inside the closed bag-shaped filter 2, an extraction raw material of a beverage such as ground coffee beans (not shown in the whole figure) is enclosed. Note that FIGS. 1, 6, 8, and 9 show flat-folded drip bags 3A - 3C without the extraction raw material for the purpose of explanation. The two filter materials have the same shape and there is no distinction between the front and the back, but in the present application, for convenience, one of them is referred to as the front surface part 2a and the other is referred to as the back surface part 2b.

[0017] As long as the rectangular filter material is double-layered and the four sides are closed, the filter 2 may be formed by overlapping two non-woven fabrics and closing the four sides, or by folding one non-woven fabric and using the folded side as one of the left and right sides and closing the other three sides by heat-sealing or the like.

[0018] For the filter 2, a fabric capable of filtering a liquid capable of extracting a beverage such as coffee can be used, such as a non-woven fabric, paper, a composite fabric of paper and a non-woven fabric, a composite fabric of a non-woven fabric and a mesh, etc. In particular, in the present invention, it can be preferably used as a material containing at least a non-woven fabric formed of a thermoplastic resin.

[0019] The holder 3A is fixed to the outer surface of the front portion 2a and the outer surface of the rear portion 2b of the filter 2, respectively. The holder 3A, fixed to the front portion 2a, has a tab 4 protruding from the upper edge of the roughly rectangular base material and notches 5 and 6 at the lower end, but is formed in a roughly rectangular shape overall. The holder 3A has a filter holding portion 7 that maintains the rectangular shape of the filter 2, and legs 8 and 9 formed below the filter holding portion 7 for hanging over an opening such as a cup.

[0020] The filter holding portion 7 is formed in a rectangle with a length of approximately three-quarters or more of the vertical dimension from the upper edge 7a of the holder, and the length between the left and right sides is not limited to this. The filter holding portion 7 has bent slits 11 and 12 that extend roughly vertically at predetermined intervals between the left and right sides, dividing the filter holding portion 7 into a rectangular side portion 15, a front portion 16, and a curved side portion 17.

[0021] The straight slit 11 closest to one side of the filter holder 7 (the left side in the figure) is formed vertically in a single line with a gap between it and the upper edge 7a of the filter holder 7 (two in this embodiment). The lowest slit 11 extends above the lateral mountain-shaped slits 31 (described later) that form the legs 8 and 9, so as not to connect with them. The straight slit 11 makes the filter holding portion 7 bendable and forms a roughly rectangular side portion 15 that is connected to one side of the front portion 16.

[0022] A curved slit 12 is formed on the other side of the filter holding portion 7, near the right side in the figure. The curved slit 12 is formed in an arc shape that bulges outwards towards the left-right center of the holder 3A from near the upper edge 7a of the filter holding portion 7, and is divided into multiple (two in this embodiment) sections vertically. The gap between the curved slits 12, 12 is set to be very small. The curved slit 12 allows the filter holding portion 7 to be bent and forms a curved side portion 17 that is connected to the other side of the front portion 16.

[0023] The curved side surface 17 has an upper slit 21, a central slit 22, and a lower slit 23 formed therein, which divide the curved side surface 17 into multiple sections vertically. The upper slit 21 extends downward from the upper end of the curved slit 12 towards the side 3d of the filter holding portion 7, curving gently.

[0024] The central slit 22 extends almost horizontally from the center where the curved slit 12 protrudes the most. The lower slit 23 extends upward from the lower end of the curved slit 12 towards the side edge 3d, curving gently. The upper slit 21, the central slit 22, and the lower slit 23 all have multiple joints at locations that are approximately aligned in the vertical direction.

[0025] A vertical auxiliary slit 25 is formed at the center of the upper edge 7a of the front portion 16 in the width direction, which facilitates the curvature of the front portion 16. Multiple auxiliary slits 25 are formed at intervals in the vertical direction.

[0026] The upper edge 7a of the filter holder 7 extends generally horizontally, except for the portion where the tab 4 protrudes. A small V-shaped notch v, approximately 1 mm in width, is formed on the upper edge 7a directly above the straight slit 11, the auxiliary slit 25, and the curved slit 12. A tab 4 that protrudes in a roughly trapezoidal shape is formed on the upper edge 7a of the front surface 16 of the filter holder 7.

[0027] Tab 4 is formed to protrude from the rectangular side portion 15 of the front portion 16, with the auxiliary slit 25 as the boundary, which is part of the upper edge 7a of the front portion 16 in this embodiment. Tab 4 has a fused portion 4L that extends horizontally and is fused to the filter 2. The fused portion 4L is formed at a vertical position from the extension line of the upper edge 7a of the front portion 16 to below the tip edge of tab 4. The fused portion 4L may also reach both side edges of tab 4. In addition, one or more fused portions 4L may be formed parallel to each other.

[0028] Near the lower ends of the straight slit 11 and the curved slit 12, mountain-shaped slits 31, 31 are formed that extend slightly upward toward the center of the front portion 16, then curve downward near the center and connect to each other, and a vertical slit 32 is formed that extends downward from the point where the mountain-shaped slits 31 connect. The vertical slit 32 is an extension of the auxiliary slit 25 and passes approximately through the center of the holder 3A in the left-right direction.

[0029] The lower edge of the holder 3A has two shallow, elongated notches 5 and 6 that extend in the left-right direction, on either side of the vertical slit 32, forming downward-extending latching projections 35 and 36 on the inside of both sides of the vertical slit 32.

[0030] The notch 5 formed on the rectangular side portion 15 extends upward from the lower edge that extends inward from the side edge 3c of the filter holding portion 7, curves upward, extends slightly downward towards the center, bends downward, then extends horizontally again and connects to the vertical slit 32. This notch 5 is provided below half of the rectangular side portion 15 and the front portion 16.

[0031] The notch 6 is formed from a position inward from the side edge 3d of the filter holding portion 7 toward the center in the width direction, and is approximately the same width as the notch 5 formed on the rectangular side portion 15, but is slightly deeper (i.e., larger in the vertical direction) than notch 5. Also, the sides extending in the left-right direction are formed not inclined toward the center but are approximately horizontal (i.e., approximately parallel to the upper and lower edges of the filter 2).

[0032] The corners forming the latching projections 35 on the left and right sides of the notches 5 and 6, and the latching projection 36 in the center, are smoothly curved. Furthermore, the central latching projections 36, 36 are slightly wider towards the bottom, and the sides 33 facing the vertical slit 32 are inclined downwards, moving away from the center.

[0033] The lower edge, which forms the mountain-shaped slit 31, the vertical slit 32, and the notches 5 and 6, forms the legs 8 and 9.

[0034] The holder 3A attached to the rear portion 2b is formed symmetrically to the holder 3A attached to the front portion 2a, except for the tab 4, as shown in Figure 2. Furthermore, the holder 3A attached to the front portion 2a and the holder 3A attached to the rear portion 2b are connected to each other on the side edge 3d on the curved side portion 17 side.

[0035] The holders 3A, which are arranged symmetrically and have the above configuration, are bent at their side edges 3d and fixed to the outer surfaces of the front portion 2a and rear portion 2b such that the side edges 2d of the filter 2 overlap the side edges 3d. As a result, with the filter 2 formed in a bag shape, the front portion holder 3A and the rear portion holder 3A are superimposed with the shapes of each part except for the tabs 4, 4 matching. The tabs 4, 4 are positioned alternately when viewed in the thickness direction.

[0036] The holder 3A is positioned on the filter 2 such that the curved side 3d of the front portion 17 and the side 2d of the filter 2 are aligned approximately in the upper and lower center of the front portion 2a and the rear portion 2b, respectively, and the rectangular side 3c of the filter 2 is positioned inward from the side 2c of the filter 2. Furthermore, as shown in Figure 1, the holder 3A is welded to the filter 2 by applying heat using ultrasonic waves or the like along the upper edge 7a and the straight lines 3L, 11L, 12L, and 30L near the straight slit 11 and curved slit 12, as well as the upper attachment portion 7L provided directly below the notch v along the upper edge 7a, and the straight lines 3L, 11L, 12L, and 30L near both sides 3c and 3d, and the straight slit 11 and curved slit 12. The upper attachment portion 7L may be formed as one or more parallel lines. The upper attachment portion 7L may also be formed intermittently in the horizontal direction.

[0037] In creating the drip bag 1A, as shown in Figure 2, the holders 3A, 3A are fixed to the strip-shaped filter 2, and the filter 2 is folded along the center line L, which is the side edge 2d, with the holders 3A facing outwards. Then, the drip bag 1A is formed by welding and cutting between the side edge 2c and the holders 3A, 3A, which are fixed at a distance in the longitudinal direction of the filter 2.

[0038] Next, the method of use and operation of the drip bag 1A of the present invention will be described. The drip bag 1A of the present invention has its upper opening sealed with pre-ground coffee beans contained in the filter 2. Therefore, as shown in Figure 3, fingers (not shown) are placed on the tabs 4 of the holders 3A fixed to the front portion 2a and the rear portion 2b, respectively, and pulled in opposite directions.

[0039] Since the front portion 2a and the rear portion 2b and the holders 3A, 3A are firmly fused together at the fused portion 4L and the upper adhesive portion 7L of the tab 4, the upper edge 2t, which forms the sealing line of the upper end opening of the filter 2, is pulled in the direction of the arrow between the fused portion 4L, 4L and the upper adhesive portion 7L, 7L. As the sealing line 2t is welded less strongly than the fused portion, it gradually opens from the tab 4 and its vicinity where the force is greatest, and eventually opens completely.

[0040] Then, in accordance with the rise of the rectangular side portion 15 and the curved side portion 17 relative to the front portion 16, the legs 8 and 9, which are integrally provided on the rectangular side portion 15 and the curved side portion 17 respectively without fold lines, spread apart. As a result, as shown in Figures 4 and 5, the legs 8 and 9 open in a total of four directions: two directions along the surface direction of the curved side portion 17 and two directions along the surface of the rectangular side portion 15.

[0041] Furthermore, the area near the center of the curved side portion 17 is pushed inward towards the inside of the bag, causing the curved side portion 17 to bend slightly at the upper slit 21, the central slit 22, and the lower slit 23. Furthermore, the central part of the holder 3A is more easily bent or curved outward by its auxiliary slit 25, making it easier to maintain the shape of a wide-open opening.

[0042] In this way, the holder 3A becomes three-dimensional, its shape is stably maintained, and the upper opening of the filter 2 becomes an open bag shape, so the splayed parts 8 and 9 are placed over the opening of the cup C and hot water is poured in.

[0043] In this case, the rectangular side portions 15, 15 of the front portion 2a and the rear portion 2b are separated between the side edges 2c, and the straight slit 11 is folded, making it difficult to maintain tension. The weight of the beverage extraction ingredients such as coffee beans can cause the rectangular side portion 15 to sink and tilt. However, the drip bag 1A has a notch 5 below the leg portion 8 on the rectangular side portion 15 that is slightly shallower than the notch 6 formed below the leg portion 9 on the curved side portion 17, and the notch 5 is slightly lowered towards the latching projection 36. Therefore, the tilt of the drip bag 1A is corrected, and it is easier to maintain a nearly straight standing position.

[0044] Thus, the drip bag 1A of the present invention has the effect of allowing the sealing line 2t of the filter 2 to be easily torn by pulling the tabs 4, 4 formed on the holder 3A. Furthermore, because the drip bag 1A of the present invention has a fusion portion 4L on the tab 4, it has the effect of being able to open smoothly by applying force more efficiently at a position closer to the sealing line 2t of the filter 2. In other words, if it is difficult to apply tensile force to the sealing line 2t, the bag may suddenly open when a certain amount of force is applied, causing the beverage extraction material contained in the filter 2 of the bag to spill out. However, with the drip bag 1A, it is possible to avoid such opening.

[0045] Furthermore, the drip bag 1A of the present invention has the effect of allowing the filter 2 to be opened by grasping and pulling the tabs 4, 4, thereby minimizing the need to directly touch parts that may come into contact with hot water or liquid with one's fingers, and thus enabling hygienic opening.

[0046] Furthermore, the drip bag 1A of the present invention has a curved side portion 17 formed by a curved slit 12, and also has an upper slit 21, a central slit 22, and a lower slit 23, making it easy to bend the curved side portion 17 to create tension. Therefore, the drip bag 1A of the present invention has the effect of easily maintaining the three-dimensional shape with the filter 2 open.

[0047] Furthermore, the drip bag 1A of the present invention has the advantage that it is easy to create a three-dimensional shape for the drip bag 1A because the legs 8 and 9 automatically spread out when the rectangular side portion 15 and the curved side portion 17 are made three-dimensional.

[0048] Furthermore, because the drip bag 1A of the present invention has different depths for the notches 5 and 6 below the legs 8 and 9, it has the effect of suppressing the sinking of the rectangular side portion 15 when the drip bag 1A is placed in a cup or the like and a beverage is extracted.

[0049] As a preferred example, in the above embodiment, the notches forming the legs 8 and 9 are shown to have different notch depths on the rectangular side portion 15 side and the curved side portion 17 side. However, both notches 5 and 6 may be formed to extend horizontally to the same depth.

[0050] Next, a second embodiment of the present invention will be described. In this embodiment, components identical to those in the first embodiment are denoted by the same reference numerals and their descriptions are omitted, while mainly different components will be described.

[0051] As shown in Figure 6, in the second embodiment of the drip bag 1B, of the two legs 38 and 39 of the holder 3B, leg (opening leg) 38 is formed to extend from the rectangular side portion 15 beyond the auxiliary slit 25 of the front portion 16 without passing through a fold line. The other leg 39 is formed integrally with leg 38 from the lower part of the curved side portion 17 side half of the front portion 16 without passing through a fold line, and extends to the side edge 3d on the curved side portion 17 side.

[0052] Drip bag 1B can be opened and formed into a three-dimensional shape in the same way as drip bag 1A in the first embodiment, and it produces the same effects as drip bag 1A.

[0053] As shown in Figure 7, the holder 3B, as the filter holding portion 7 is formed in three dimensions, opens the legs 38 extending from the rectangular side portion 15 at the same angle as the angle of the surface of the rectangular side portion 15, and opens the legs 39 extending from the front portion 16 in approximately the same direction as the surface of the front portion 16. That is, the legs 38, 38 spread out at a large angle, and the legs 39, 39 spread out roughly parallel to the width of the two curved side portions 17, so that they can be stably hung on the upper edge 7a of the container.

[0054] As shown in Figure 6, the notches 40, 40 forming the legs 38, 39 are formed to approximately the same depth in this embodiment. Hooking projections 35, 41 are formed below the side edge 2c and at the tips of the legs 38, 39, extending downwards to securely hang on a container C such as a cup.

[0055] In the embodiments 1 and 2 described above, the tab 4 was shown to be formed on the upper half of the front portion 16 with the auxiliary slit 25 as the boundary. However, as shown in Figure 8, it may also be formed spanning both sides of the auxiliary slit 25. In that case, it is preferable that a V-shaped notch or slit be formed above the auxiliary slit 25 so that the tab 4 does not interfere with the bending or curvature of the front portion 16 by the auxiliary slit 25.

[0056] The fused portion 4L and the upper adhesive portion 7L are formed at the tip edge or upper edge 7a of the tab 4. In addition, a fused portion 16L is formed at the lower center immediately adjacent to the perforation 4s. Although the fused portions 3L, 11L, etc. are not shown in Figure 8, they are provided in the same manner as in the first or second embodiment.

[0057] In this case, small V-shaped notches are formed at both ends of the upper edge 7a of the tab 4, and it is preferable that a V-shape is also formed at the tip edge of the tab 4 so that the V-shape faces the auxiliary slit 25 and its sharpest point is located above the center line 25. By forming V-shaped notches in this way, the areas where the holder is easily bent become easier to see, making it easier to guide the holder into the appropriate shape.

[0058] Furthermore, the tab 4 may have the above-mentioned notch v or slit (not shown) formed on substantially the entire surface of the front portion 16, while the upper edge 7a of the filter holding portion 7 is provided. In this case as well, a fusion portion 4L is formed on each tab 4. By forming tab 4 in this way, even if there is some variation in the fusion of the sealing line 2t of filter 2, it is possible to make it easier to open the tab 4 near areas where the fusion is strong and difficult to open.

[0059] Furthermore, a perforation 4s may be formed below the tab 4, curving downward to connect the V-shaped notches on the upper edge 7a that indicate both ends of the tab 4. The presence of this perforation 4s makes it easier to open the tab 4, 4 when attempting to open the filter 2 by holding the tabs 4, 4 of the holders 3A, 3A attached to the front portion 2a and rear portion 2b of the filter material.

[0060] In the first and second embodiments, the legs 8 and 38 of the drip bags 1A and 1B are shown to be integrally formed with the rectangular side portion 15 without forming a fold line between them. However, a fold line may be appropriately provided between the legs 8 and 38 and the rectangular side portion 15 to facilitate the spreading of the legs.

[0061] Next, a third embodiment of the present invention will be described. In this embodiment, components identical to those in the first and second embodiments are denoted by the same reference numerals and their descriptions are omitted, while mainly different components will be described.

[0062] As shown in Figure 9, the leg portion 49 of the drip bag 1C in the third embodiment of the present invention extends from below the curved side portion 17 toward the rectangular side portion 15 to below the front portion 16 beyond the auxiliary slit 25, and a locking projection 36 is formed at its tip. The leg portion 48 extends from below the rectangular side portion 15 toward the curved side portion 17 to below the front portion 16 beyond the auxiliary slit 25, and a locking projection 36 is formed at its tip.

[0063] The leg portion 49 is provided adjacent to and above the leg portion 48. The leg portion 48 is formed to form an inverted U shape where it passes the latching projection 36 of the leg portion 49 towards the center. The fused portion 4L and the upper adhesive portion 7L are formed at the tip edge or upper edge 7a of the tab 4. In addition, a fused portion 16L is formed at the lower center immediately adjacent to the perforation 4s. Although the fused portions 3L, 11L, etc. are not shown in Figure 9, they are provided in the same manner as in the first or second embodiment.

[0064] The configuration of the legs 48 and 49 of the drip bag 1C makes it easier to make the width dimensions of the holders 3A and 3B compact, while still ensuring the horizontal dimensions of the legs 48 and 49. Furthermore, as shown in Figure 10, the drip bag 1C can be made three-dimensional and can be stably hung on a cup or the like, almost the same as the drip bag 1A. [Explanation of Symbols]

[0065] 1A, 1B, 1C Drip Bags 2 filters 2a Front part 2b Rear part 3A, 3B, 3C holder 4 tabs 4L fusion part 5,6 Notches 7 Filter holding section 7a Upper edge 8,9,38,39,48,49 Legs v notch

Claims

1. The device comprises a filter formed by stacking filter materials for beverage extraction to create a front and rear section, with the top, bottom, and left and right sides of the overlapping front and rear sections closed, and a holder fixed to the front and rear sections. The holder has an upper attachment portion fused to the front portion and the rear portion along the upper edge, and a tab that protrudes above the upper attachment portion to open the filter. A drip bag having tab fusion portions on the inner surface of the tab that are fused to the front portion and the rear portion, respectively.

2. A V-shaped notch is formed at the tip edge of the aforementioned tab. The drip bag according to claim 1, wherein a slit or semi-slit is formed below the notch, extending downward at a distance from the bottom of the notch.

3. The drip bag according to claim 1, wherein the tab fixed to the front portion and the tab fixed to the rear portion have overlapping portions when viewed in the overlapping direction of the front portion and the rear portion.

4. The holder has a front portion and a filter holding portion having side portions adjacent to both sides of the front portion via slits that extend vertically and facilitate bending of the holder, It has legs that extend from below the side portion toward the center in the width direction of the front portion, The drip bag according to claim 1 or 2, wherein the legs are formed to be able to rise from the filter in conjunction with the bending between the side portion and the front portion.

5. One of the legs extends from below one side surface toward the other side surface, beyond the center line in the width direction of the front surface, to below the front surface. The other leg extends from below the side of the other leg toward the side of the one side, beyond the center in the width direction of the front, to below the front. The drip bag according to claim 4, wherein one leg and the other leg are adjacent to each other in an upper-lower positional relationship.

6. The holders fixed to the front and rear portions are formed by folding them with one side connected as a fold line, and are fixed to the front and rear portions while sandwiching the bag from either the left or right side of the bag. The drip bag according to claim 4, wherein the lower end edge of the leg formed on the side portion having the fold line is located on the upper end edge side than the lower end edge of the leg formed adjacent to it.

7. The holder has a front portion in the width direction and adjacent side portions on both sides of the front portion via bent slits, and the front portion and the side portions are a filter holding portion fixed to the filter, An opening portion extends from below one of the side portions adjacent to the front portion toward the center in the width direction of the front portion, and rises from the filter in conjunction with the bending between the one side portion and the front portion, The drip bag according to claim 1 or 2, having legs extending from below the front portion along the surface of the front portion in the same direction as the splayed leg portion.

8. The holders fixed to the front and rear portions are formed by folding them with one side connected as a fold line, and are fixed to the front and rear portions while sandwiching the bag from either the left or right side of the bag. The drip bag according to claim 7, wherein the lower end edge of a leg formed on the side portion having the fold line is located on the upper end edge side than the lower end edge of a leg formed adjacent to it.

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