JP5389588B2 - Support tool and filter tool - Google Patents

Description

  The present invention relates to a support tool and a filter tool. More specifically, the present invention relates to a disposable support tool and a filter tool for taste drinks such as coffee, black tea, Japanese tea, and Chinese tea.

In recent years, it has become common practice for consumers to drink and drink coffee using disposable filters.
For example, as a prior art described in a gazette relating to a filter, a paper support is attached to a disposable drip coffee or tea extraction bag, and the end of the support when pouring hot water into the bag There is a technique of a palatable beverage bag with a support device that can reliably open the bag mouth to a large and constant size by folding the bag into two stages (see Patent Document 1).

Disposable, drip coffee, tea, etc., with a paper support attached to the extraction bag, which enhances the extraction effect, overflows hot water during pouring, and burns due to falls when the cup is moved There is a technique of a palatable beverage bag with a support that can improve safety to prevent such injuries (Patent Document 2).
Furthermore, a filter bag is attached to the main body, a cup is sandwiched between the main body holding portions, and a pick portion formed on the strip is used to expand the main body. There is a technique in which a placement portion is formed by internal folding via a scissors (Patent Document 3).

JP-A-9-131263 Japanese Patent Laid-Open No. 10-80362 JP 2003-52545 A

By the way, for example, when a filtering tool of a type sandwiching a cup is placed on a cup having a large diameter, the lower part of the filtering tool opens widely and the upper filter paper opening becomes narrow. As a result, it becomes difficult to supply hot water.
In addition, a filter of a type that is not held in a state where the entire circumference of the opening is opened when placed on the cup is difficult to supply hot water during hot water supply.
On the other hand, when placing the filtering tool on the cup, if the preparation work from the housed state to the opening is complicated, the consumer feels bothersome and unpreferable.

  An object of this invention is to provide the filter etc. which can expand the opening part of a filter with simple operation, and can be stably mounted on a cup.

  Hereinafter, means for solving the above-mentioned problems will be described. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are added in parentheses, but the present invention is not limited to the illustrated embodiment.

  In order to solve the above-mentioned problem, a support tool (50) according to the present invention is an expansion in which thin plates having a substantially rectangular shape are stacked and joined on the short side (21) side of the thin plate to form a ring shape. A first support (50) of the beverage filtration bag (10), which has a predetermined length starting from the short side (21), and a first fold (31) The second fold (52) formed from the end (31a) of the thin plate to the first long side (22) of the thin plate, and the second length of the thin plate from the end (31a) of the first fold (31) In the support tool (50) formed with the third fold line (53) formed up to the side (23), a valley fold is formed at the position of the first fold line (31), and the second and third fold lines (52) are formed. , 53) is folded in a mountain and widened.

Here, if the expansion surface (34) formed by being expanded is characterized in that the position of the first fold line (31) is configured to be the widest, the expanded shape can be stably maintained. .
Further, if the first fold line (31) is formed in a direction perpendicular to the short side (21), the shape can be easily manufactured.

Further, the second and third folds (52, 53) are constituted by straight lines, and the second fold (52) is in relation to the first fold at the end (31a) of the first fold (31). The third fold line (53) forms an acute angle with respect to the first fold line at the end (31a) of the first fold line (31). And the shape can be maintained stably.
Furthermore, the second and third folds (52, 53) are constituted by straight lines, and the second fold (52) is formed in the first fold at the end (31a) of the first fold (31). The third fold line (53) forms a right angle or an acute angle with respect to the first fold line at the end (31a) of the first fold line (31). Manufacture is easy and the shape can be maintained stably.
Furthermore, if at least one of the first to third folds is formed by a perforation having alternating penetrating portions and non-penetrating portions, the load of the expansion work is reduced. it can.

  In order to solve the above-mentioned problem, a filter tool (1, 2, 3) according to the present invention is formed by stacking a filter bag (10) containing a material to be extracted (101) and a thin plate having a substantially rectangular shape. An opening-side upper edge of the container (100), including a support (20, 40, 50) having a ring shape joined on the short side (11) side and supporting the filter bag (10) The extraction liquid, which is placed in the filter bag (10) and is extracted by pouring the extraction medium into the extraction material (101) housed in the filter bag (10), is filtered by the filter bag (10) and placed in the container (100). In the filtering tool (1, 2, 3) flowing down, the support tool (20, 40, 50) is formed in advance with a fold line (32) connecting two opposing long sides (22, 23) of the thin plate. (20, 40, 50) is configured to be foldable at the position of the fold (32) of the support tool so as to be expanded, and the support tool (2 , 40, 50) deployment plane which is formed by expanding (34), characterized by a concave curvature towards the inside.

Here, the support tool (20, 40) includes a first fold (31) having a predetermined length starting from the short side (21) of the thin plate constituting the support tool (20, 40), and a first From the second fold (32) formed from the end (31a) of the fold (31) toward the first long side (22) of the thin plate, and from the end (31a) of the first fold (31) And a cut portion (33, 43) formed toward the second long side (23) of the thin plate, and the support tool (20, 40) is located at the position of the first fold (31) of the support tool. If it becomes a valley fold and it becomes a mountain fold at the position of the 2nd crease | fold (32) and it is characterized by expanding to a substantially square shape, a bending part will decrease and the load of expansion work can be reduced.
Further, if the support tool (20, 40) is formed by joining two thin plates of the same shape at the adhesive margin (28) on the short side of the thin plate, the balance of the filter tool Can be achieved.
Further, the support (20, 40) is composed of a single thin plate, and the support (20, 40) is bent near the center in the longitudinal direction of the thin plate, and the adhesive margin ( The manufacturing cost can be reduced if it is characterized by being joined at 28).
Further, the adhesive margin portion (28) of the support (20, 40) is characterized in that a gap (29) is formed at a position corresponding to the first fold (31). The bending load at the crease position can be reduced.

Furthermore, a part of the opening (13) of the filter bag (10) is joined to the second long sides (23) of the two opposing surfaces of the support (20, 40, 50). If so, the filter bag can be expanded with the expansion of the filter.
Furthermore, the length of the opening (13) of the filter bag (10) that is not joined to the support (20, 40, 50) is substantially the same as the width of the expansion surface (34). Then, the filter bag can be opened widely.
Furthermore, if the cut portion (43) is formed from the end (31a) of the first fold (31) to the middle of the second long side (23) of the thin plate, it is filtered. It is possible to prevent the spread surface formed by the spread of the tool from falling down.
Furthermore, if it further has the to-be-extracted material (101), a user can enjoy a palatability drink, without being troubled.

  In order to solve the above-mentioned problem, the support tool (60) according to the present invention is an expansion in which substantially rectangular thin plates are stacked and joined on the short side (61) side of the thin plate to form a ring shape. A possible support tool (60) for a beverage filtration bag (10), the first fold (71) starting from the short side (61), and the end (71a) of the first fold (71) ) To the first long side (62) of the thin plate and the second fold line (72) formed along the second long side (63) of the thin plate (75). ) And a second cut portion (76) formed from the end portion (71a) of the first fold line (71) to the first cut portion (75), A valley fold is formed at the position of the first fold (71), and a mountain fold is expanded at the position of the second fold (72). 5) and the first long side (62), an expanded surface (64) curved concavely toward the inside is formed, and the first cut portion (75) and the second long side (63) ), An upper edge portion (65) curved in a convex shape toward the outside is formed.

  Here, the thin plate has a glue margin portion (68) formed on one short side (61) of the thin plate, and a joined portion (77) to be joined to the glue margin portion on the other short side. The marginal part (68) is formed by extending the first fold line (71) so as to be symmetric with respect to the short side (61), and the joined part (77) has the support tool (60) formed in an annular shape. If it is formed to have a relief area (78) that avoids a position corresponding to the first fold (71) of the margin part (68), the short side (61) is sandwiched between However, the flexibility (rigidity) is almost the same on both sides, and the two sides are almost evenly spread to form a balanced shape.

  ADVANTAGE OF THE INVENTION According to this invention, the opening part of a filter tool can be expanded by simple operation, and the filter tool etc. which can be stably mounted on a cup can be provided.

It is a perspective view which shows the use condition of the filter concerning 1st Embodiment. It is a front view of the state before use of the filter shown in FIG. It is an expanded view of the support tool of the filter tool shown in FIG. It is a figure for demonstrating the state in the middle of expanding the filter shown in FIG. It is a perspective view of the filter concerning 2nd Embodiment. It is a perspective view of the filter concerning 3rd Embodiment. It is a perspective view which shows the use condition of the filter tool concerning 4th Embodiment. It is an expanded view of the support tool of the filter tool shown in FIG. It is the elements on larger scale near the joining area | region of the support tool shown in FIG.

(First embodiment)
Hereinafter, a first embodiment for carrying out the present invention will be described in detail.
FIG. 1 is a perspective view showing a use state of the filter 1 according to the first embodiment, and FIG. 2 is a front view of the filter 1 before use.
As shown in FIG. 1, the filter 1 includes a filter bag 10 that contains a material to be extracted 101 of a coffee or tea-preferred beverage, and a support 20 that holds the filter bag 10 inside. The And the filter 1 is mounted in the opening side upper edge of containers 100, such as a cup.

Here, the filter bag 10 is made of, for example, a filter paper, a non-woven fabric, or a material obtained by making paper by mixing at least one of polypropylene and polyethylene fibers with pulp. The filter bag 10 has a bag shape in which one material is folded at the bottom 11 and thermally bonded at the side surface 12. The filter bag 10 has a trapezoidal shape in which the opening 13 side is slightly expanded with respect to the base 11 side. The filter bag 10 contains therein an extraction material 101 such as tea leaves such as black tea, oolong tea, green tea, and barley tea, and roasted and ground coffee beans.
The support 20 is made of, for example, a flexible material such as cardboard or plastic sheet that has been waterproofed with polyethylene or the like. The support 20 is configured such that a horizontally long belt-like mount (substantially rectangular thin plate) is folded and overlapped at the center (described later) and joined on the short side 21 side so as to expand into a ring shape. The developed shape of the support 20 will be described later with reference to FIG.

As shown in FIG. 2, the opening 13 side of the filter bag 10 is bonded to the upper long side 23 side of the support tool 20. In addition, the attachment method to the support tool 20 of the filter bag 10 is not limited to adhesion | attachment. For example, fusion may be used. When the support 20 is made of paper laminated with a polymer resin and the filter bag 10 is made of a material having heat melting property, it is preferably attached by heat fusion.
A part of the opening 13 of the filter bag 10 is bonded to two opposing long sides 23 on the upper side of the support 20. More specifically, the width of the expanded surface of the support 20 when expanded (the length of the first perforation 31 as an example of a first fold of the mount to be described later) is the adhesion of the filter bag 10. The length of the bonded portion of the opening 13 of the filter bag 10 (the length of the unbonded portion) is determined so as to be approximately the same as the length of the unbonded portion. Thereby, when the filter 1 is expanded, the opening part 13 of the filtration bag 10 can be stably opened widely.

On the long side 22 on the lower side of the support 20 (filter 1), two concave portions 24 and 25 having the same depth are formed from the center to the left and right. When the filter 1 is expanded and placed on the container 100, the upper edge of the container 100 enters the recesses 24 and 25, and the filter 1 is stably placed on the container 100 (FIG. 1). reference).
A hole 26 is formed in the center of the support tool 20, and the support tool 20 and the filter bag 10 are bonded to each other by a tongue portion 27 formed in a lower portion of the hole 26. Thereby, when the filter 1 (support tool 20) is expanded, not only the opening part 13 but the lower part of the filter bag 10 is expanded, and the internal space of the filter bag 10 is expanded. When an extraction medium such as hot water is injected from the opening of the filtration bag 10, the internal space of the filtration bag 10 is not narrowed by the weight of the extraction medium. Since the extraction medium convects in the filter bag 10 and contacts the material 101 to be extracted evenly, the extraction effect can be enhanced. The extracted extract of the palatable beverage flows down into the container 100 (see FIG. 1).

A developed view of the support 20 for realizing the filter 1 having the above configuration will be described with reference to FIG.
FIG. 3 is a development view of the support tool 20.
As shown in FIG. 3, the support 20 has a predetermined height from the long side 23 on the upper side of the substantially rectangular mount (thin plate) about one third to the center starting from the short side 21. A first perforation 31 is formed as an example of a first fold having a length of. In the first embodiment, the first perforation 31 is formed perpendicular to the short side 21 in order to facilitate the production of the shape.

A second perforation 32 as an example of the second fold line is formed from the end 31a of the first perforation 31 to the lower long side 22 as an example of the first long side of the mount, A cut portion 33 is formed from the end portion 31a of the perforation 31 to the upper long side 23 as an example of the second long side of the mount. By using the cut portion 33 instead of the fold line from the end portion 31a to the upper long side 23, the bent portion can be reduced and the load of the expansion work can be reduced.
Further, since the support 20 is joined in an annular shape, a margin part 28 is formed on the short side 21 on the right side of FIG. Here, a gap 29 is formed in the glue margin 28 at a position corresponding to the first perforation 31 in order to realize a concave shape (described later) of the spread surface. In order to make the support tool 20 into a ring shape, it is folded back by a folding line and joined at one glue margin 28, so that the manufacturing cost of the support tool 20 can be reduced. Further, the clearance 29 can reduce the bending load (expansion work load) at the position of the first perforation 31 at the time of expansion.

The length of the 1st perforation 31 determines the width | variety of the expansion surface 34 (refer FIG. 1) formed when the filter 1 is expanded. The length of the first perforation 31 is determined from the relationship between the length of the portion of the filtration bag 10 that is not bonded and the size of the container 100 (see FIG. 1) on which the filter 1 is placed.
In the first embodiment, the second perforation 32 and the notch 33 are determined so as to draw a continuous arc at the end 31 a of the first perforation 31, and the end of the first perforation 31 is determined. A tangent line of the arc in the portion 31 a is formed at a right angle to the first perforation 31. Thereby, the expansion surface 34 formed by being expanded becomes the widest at the position of the first perforation 31, and the shape in which the filter 1 is expanded is stably maintained.
In addition, although the example which joins one board | substrate in the ring shape in the glue margin part 28, and comprised the support tool 20 was demonstrated here, it is not limited to this. For example, two ring-shaped mounts having the same shape may be joined at the margin portion to form the ring-shaped support 20 (not shown). When spread, the adhesive margin can be arranged in a well-balanced manner.

(How to use the filter)
The usage method of the filter 1 demonstrated above is demonstrated below.
FIG. 4 is a view for explaining a state in the middle of expanding the filter 1.
As shown in FIG. 4, when pressing with a finger (not shown) in the direction (in the direction of the arrow) sandwiching the filter 1 from the direction of the expansion surface of the filter 1, the support 20 is the first and second sewing machines. The filter 1 is expanded by deforming with reference to the positions of the eyes 31 and 32 and the notch 33. Specifically, the first perforation 31 is a valley fold, the second perforation 32 is a mountain fold, and the filter 1 is expanded.

As described above, since the lower portion of the filter bag 10 is bonded to the tongue portion 27 of the support tool 20, the filter bag 10 is opened in accordance with the expansion of the filter tool 1 (support tool 20).
An expanded surface and a back side (back side in FIG. 4) formed by the front side (front side in FIG. 4) being folded in the position of the second perforation 32 while being pushed from the direction of the expanded surface. When the expansion surface of the mount forms the same plane (expansion surface 34), the upper expansion surface 35 falls to the outside with respect to the first perforation 31. At this time, the position of the 1st perforation 31 functions as a rib, and the filter 1 maintains a shape stably (it will be in the state shown in FIG. 1).

Thus, by pushing so that the short side of the filter 1 may be pinched | interposed from both sides, the filter 1 can be expanded and it can maintain a shape stably. Further, by making the folds into perforations, it is possible to determine the folding position, and the load of the bending work (expansion work) can be reduced.
Thus, the user places the filter 1 on the container 100 and puts an extraction medium such as hot water on the material to be extracted 101 that is stored in the filter bag 10 in advance or after being opened. It becomes possible to pour. The user can enjoy a palatability drink without bothering.

(Second Embodiment)
FIG. 5 is a perspective view of the filter 2 according to the second embodiment. The same components as those of the filter 1 shown in FIG.
As shown in FIG. 5, the support tool 40 of the filter tool 2 is cut in that the cut portion 43 is formed halfway from the end portion 31 a of the first perforation 31 toward the upper long side 23 of the mount. The part 33 is different from the support tool 20 of the filter tool 1 according to the first embodiment in which the portion 33 is formed from the end 31a of the first perforation 31 to the long side 23 on the upper side of the mount (see FIG. 2). Since the upper long side 23 is connected, the upper expanded surface 35 is not greatly opened outward and falls down. Therefore, when an extraction medium such as hot water is poured, there is less possibility that the spout (not shown) will be caught by the upper expansion surface 35, and usability is improved.

(Third embodiment)
FIG. 6 is a perspective view of the filter 3 according to the third embodiment.
As shown in FIG. 6, the support tool 50 of the filter 3 includes a second perforation as an example of a second fold formed from the end 31 a of the first perforation 31 to the lower long side 22. First and second embodiments in that 52 and a third perforation 53 as an example of a third fold formed from the end 31a to the upper long side 23 are formed in a straight line. It differs from the support tools 20 and 40 of the filter tools 1 and 2 concerning. At this time, the second perforation 52 and the third perforation 53 are preferably formed at a right angle or an acute angle with respect to the first perforation 31 at the end 31 a. By making the second and third perforations 52 and 53 straight, the support 50 can be easily manufactured, and the second or third perforations 52 and 53 are perpendicular or acute to the first perforation 31. In this way, the expanded surface 34 formed by the expansion becomes a concave shape toward the inside of the filter 3, and the square shape is stably maintained.

(Fourth embodiment)
FIG. 7 is a perspective view showing a use state of the filter 4 according to the fourth embodiment, FIG. 8 is a development view of the support 60 of the filter 4 (FIG. 7), and FIG. 8) is a partially enlarged view of the vicinity of a joining region 79 when joining in a ring shape.
As shown in FIG. 7, the filtering tool 4 includes a filtering bag 10 and a support tool 60 that holds the filtering bag 10. The filter 4 is expanded and placed on the container 100. In the support tool 60 of the filter 4, the first perforation 71 is valley-folded, and the second perforation 72 is mountain-folded to maintain the support tool 60 in an expanded shape. At this time, the expanded surface 64 formed by expanding is curved concavely toward the inside of the support tool 60. On the other hand, the upper edge portion 65 from the first cut portion 75 (FIG. 8) to the upper long side 63 (FIG. 8) is curved convexly toward the outside of the support tool 60.

A developed view of the support 60 for realizing the shape of the filter 4 described above will be described with reference to FIG.
As shown in FIG. 8, the support 60 is a first perforation starting from the short side 61 (or the folding line 70) at a position slightly above the center in the vertical direction of the substantially rectangular mount (thin plate). 71 is formed. In the fourth embodiment, the first perforation 71 in the center of FIG. 8 is symmetrical to the fold line 70 that forms the short side 61 before spreading, and is convex toward the long side 62 on the lower side. ing. Further, a second perforation 72 is formed between the end 71 a of the first perforation 71 and the lower long side 62. The second perforation 72 is formed so as to protrude toward the lower long side 62 (substantially in an arc shape).

A first cut portion 75 is formed between the upper long side 63 and the first perforation 71. In the fourth embodiment, the first cut portion 75 is formed in parallel to the upper long side 63 (perpendicular to the folding line 70). In addition, a second cut portion 76 is formed between the end portion 71 a and the first cut portion 75. In the fourth embodiment, the second cut portion 76 in the vicinity of the end portion 71a is formed by extending the first perforation 71, and disperses the stress in the vicinity of the end portion 71a during expansion. This facilitates the user's expansion work, prevents the mount from being torn after the expansion, and stabilizes the shape. The first cut portion 75 may not be parallel to the upper long side 63. For example, the upper edge portion 65 (FIG. 7) curved in a convex shape and the widened surface 64 (FIG. 7) curved in a concave shape are formed, for example, along the upper long side 63 instead of in parallel. Also good.
As for the support tool 60, the margin part 68 is formed in the short side 61 of the right side of FIG. The margin portion 68 has an outer shape that is convex (substantially arc-shaped) toward the lower long side 62, and avoids the second perforation 72 when joined to the joined portion 77 (described later). . Thereby, the margin part 68 does not prevent the second perforation 72 from being folded in a mountain at the time of expansion. The margin portion 68 is formed to have a width that is smaller than the half width of the spread surface 64 (FIG. 7).

A first perforation 71 is formed in the glue margin 68 so as to be symmetric with respect to the folding line 70. In addition, a gap 69 is formed in the glue margin 68 at a position corresponding to the first notch 75 at the time of joining. The gap 69 is formed to have a sufficient width with respect to the first cut 75 corresponding to the expansion.
The support 60 is formed with a joined portion 77 to which the adhesive margin portion 68 is joined on the left side of FIG. Similar to the right side portion of the fold line 70 of the expanded surface 64 (FIG. 7) shown in the center of FIG. 8, the joined portion 77 has a second perforation 72, a first cut portion 75, and a second cut. Part 76. The joined portion 77 has a substantially arcuate outline having a predetermined width D ₁ from the second perforation 72 and an outline having a predetermined width D ₂ (see FIG. 9) with respect to the gap 69 of the glue margin 68. A relief area 78 composed of a line (shown virtually as a dashed hatched area in FIG. 8) is provided near the center. The relief area 78 is a position corresponding to the first perforation 71 formed in the glue margin 68 when the support tool 60 is ring-shaped (described later).

The vicinity of the joining region 79 when the support 60 described above is joined in a ring shape will be described with reference to FIG.
As shown in FIG. 9, in the fourth embodiment, the support 60 is formed into an annular shape and hot-pressed by a predetermined width D ₃ parallel to the short side 61, Are heat-sealed. In other words, the entire surface of the margin portion 68 and the joined portion 77 are not joined. The width D ₃ to be joined is determined so as to obtain a joining force sufficient to withstand use as the filter 4 (FIG. 7).
Since the margin portion 68 is divided into upper and lower portions with a gap 69 therebetween, and the bonded portion 77 is divided into upper and lower portions with the first cut portion 75 interposed therebetween, the bonding region 79 is divided into upper and lower portions corresponding thereto. Further, as described above, the escape region 78 is formed in the joined portion 77, and the region to be joined is narrower than the escape region 78, so the junction region 79 below the first cut portion 75 is the relief region 78. Divided into two parts. When the support tool 60 is ring-shaped, the first perforation 71 formed in the glue margin portion 68 corresponds to the relief region 78, and is therefore affected by the joining of the glue margin portion 68 and the joined portion 77. The first perforation 71 of the margin allowance 68 can be valley-folded. Therefore, since the valley folds and expands at the position of the first perforation 71, the user can easily perform the expansion work.

A first cut portion 75 is formed between the first perforation 71 and the upper long side 63. At the time of expansion, an expanded surface 64 (FIG. 7) curved concavely toward the inside of the support tool 60 is formed below the first cut portion 75, and the shape of the support tool 60 is maintained. An upper edge portion 65 (FIG. 7) that is curved in a convex shape toward the outside of the support tool 60 is formed on the upper side of the first cut portion 75. When viewed from above, the upper edge 65 of the support 60 forms an oval shape, providing a good aesthetic to the user.
The gap 29 shown in FIG. 3 is narrowly formed at a position corresponding to the first perforation 31 (FIG. 3), whereas in the fourth embodiment, the gap 69 corresponds to the time of expansion. The first notch 75 is formed with a sufficient width. Thereby, when the support tool 60 is made into a ring shape, strict alignment with the first notch 75 is not required.
Since the gap 69 has a sufficient width, the margin portion 68 of the upper edge portion 65 (FIG. 7) becomes narrow. As a result, in the upper edge portion 65 (FIG. 7), the flexibility (rigidity) is almost the same on both sides of the folded line 70 after joining. Further, the escape region 78 is formed in the joined portion 77, and the side where the adhesive margin portion 68 and the joined portion 77 are joined (the right side of the short side 61) is the opposite side (the left side) across the short side 61. The flexibility (rigidity) is almost the same. Therefore, when expanded, the curved state is substantially the same on both sides of the fold line 70. The escape area 78 does not hinder the valley folding of the first perforation 71. Thereby, the support tool 60 can be spread substantially evenly across the short side 61, and the support tool 60 which has a balanced shape can be provided. The shape is stable, and the state when the user places the container 100 (FIG. 7) is stable.

1, 2, 3, 4 ... filtering tool, 10 ... filter bag, 11 ... bottom, 12 ... side, 13 ... opening, 20,40,50,60 ... support, 21,61 ... short side, 22,62 ... lower long side (first long side), 23, 63 ... upper long side (second long side), 24, 25 ... concave, 26 ... hole, 27 ... tongue, 28, 68 ... glue Substrate, 29, 69 ... gap, 31, 71 ... first perforation (first fold), 31a, 71a ... end, 32, 52, 72 ... second perforation (second crease), 33, 43 ... notches, 34, 64 ... expanded surface, 35 ... upper expanded surface, 53 ... third perforation (third fold), 65 ... upper edge, 70 ... folding line, 75 ... 1st cut part, 76 ... 2nd cut part, 77 ... Joined part, 78 ... Escape area, 79 ... Joined area, 100 ... Container, 101 ... Extracted material

Claims (9)

A filtration bag (10) containing the material to be extracted (101);
Substantially rectangular thin plate are overlapped, have short sides (2 1) is constructed are joined at side ring shape of the thin plate comprises a support and (40) for supporting the filtration bag (10) ,
An extraction liquid, which is placed on the upper edge of the opening of the container (100) and is extracted by pouring the extraction medium into the material to be extracted (101) stored in the filtration bag (10), is extracted from the filtration bag (10). ) and filtered through a filtration device to flow down to the vessel (100) in (2),
The support (40) is formed in advance with a fold line (32) connecting two opposing long sides (22, 23) of the thin plate,
The support (40) includes a first fold (31) having a predetermined length starting from the short side (21) of the thin plate constituting the support (40), and the first fold ( 31) a second fold (32) formed from the end (31a) toward the first long side (22) of the thin plate, and the end (31a) of the first fold (31). To the second long side (23) of the thin plate, and a valley fold is formed at the position of the first fold (31) of the support. Is configured to be foldable at the position of the fold line (32) and can be expanded,
The cut portion (43) is formed from the end (31a) of the first fold (31) to the middle of the thin plate toward the second long side (23),
It said support (40) deployment plane which is formed by expanding (34), a filtration device, characterized in that the concavely curved toward the inside (2). The filtering tool (2) according to claim 1 ,
The said support tool (40) is a filter tool characterized by joining two said thin plates of the same shape in the paste margin part (28) of the said short side of the said thin plate. The filtering tool (2) according to claim 1 ,
The support (40) is composed of one thin plate,
The said filter (40) is bend | folded near the center of the longitudinal direction of the said thin plate, and is comprised by joining by the paste margin part (28) by the side of the said short side (21), It is comprised, In the filter (2) according to claim 2 or 3 ,
The filter tool characterized in that a gap (29) is formed at a position corresponding to the first fold (31) in the adhesive margin (28) of the support tool (40) . The filtering tool (2) according to claim 1 ,
Part of the opening (13) of the filter bag (10) is joined to the second long side (23) of the two opposing surfaces of the support (40). . The filtering tool (2) according to claim 5 ,
The length of the portion of the filter bag (10) not joined to the support (40) in the opening (13) is substantially the same as the width of the spread surface (34). Ingredients. The filtering tool (2) according to claim 1 ,
The filtering tool further comprising the material to be extracted (101). A support (60) for an expandable beverage filter bag (10), which is formed by laminating a substantially rectangular thin plate and joined on the short side (61) side of the thin plate to form a ring shape. And
A first fold line (71) starting from the short side (61);
A second fold (72) formed from an end (71a) of the first fold (71) toward the first long side (62) of the thin plate;
A first cut portion (75) formed along the second long side (63) of the thin plate;
In the support (60) in which the second cut portion (76) formed from the end portion (71a) of the first fold line (71) to the first cut portion (75) is formed.
A valley fold at the position of the first fold (71), a mountain fold at the position of the second fold (72),
Between the first cut portion (75) and the first long side (62), an expanded surface (64) curved concavely toward the inside is formed,
An upper edge portion (65) that is curved outwardly is formed between the first cut portion (75) and the second long side (63). (60). The support (60) according to claim 8 ,
In the thin plate, a margin part (68) is formed on one short side (61) of the thin plate, and a joined part (77) to be joined to the glue margin part is formed on the other short side,
The margin portion (68) is formed by extending the first fold line (71) so as to be symmetrical with the short side (61),
The joined portion (77) is a relief region (78) that avoids a position corresponding to the first fold (71) of the glue margin (68) when the support (60) is ring-shaped. A support device characterized by being formed.

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