JP5019034B2 - Drip bag - Google Patents

Description

  The present invention relates to a drip bag that can be easily drip-type to obtain an extract such as coffee by being hooked on an upper part of a container such as a cup.

  As a drip bag that makes it easy to put a cup of coffee in a full-fledged paper drip method, the bag body made of a water-permeable filterable sheet is filled with coffee powder, and a holder is attached to the side of the bag body. There is something. There are various types of drip bags. However, as suitable for industrial production, recesses for locking the cups are formed at the left and right ends of the paperboard-like member, and these are folded into left and right at the center folding line. There is a holder in which the bag body and the holder are attached so that the central folding line and the side of the bag body overlap, and the holder opens in a V shape when used. In addition, in order to ensure the opening of the holder that opens in a V shape in this way and to prevent the V shape from closing when the drip is poured, a fold portion is provided near the fold line of the holder on the opening side of the bag body. It has been proposed (Patent Document 1).

JP 2004-242847 A

  FIG. 6 is a top view of a state in which the conventional drip bag 1x that opens the holder 20 in a V shape is locked to the cup 100. As described above, in the conventional drip bag 1x, the locking to the cup 100 is performed by the locking recesses 21a and 21b formed at the left and right ends of the holder 20 and the locking recess 21c formed below the central folding line 22. Therefore, the bag body 10 is biased toward the center folding line 22 side of the holder 20. Therefore, even if the folding part 27 is provided in the vicinity of the central folding line 22 of the holder 20 as described in Patent Document 1, the bag body 10 contacts the inner wall of the cup 100 with a considerable width. Therefore, when the hot water is poured into the bag body 10, the coffee extract quickly flows out from the contact portion A between the bag body 10 and the inner wall of the cup 100 through the inner wall of the cup 100, and the coffee extract having the original strength. There was a problem that could not be obtained.

  Further, compared to the locking recesses 21a and 21b formed at the left and right ends of the holder 20, the consumer is less likely to see the locking recess 21c formed below the central folding line 22, and during drip, The drip bag 1x is locked to the cup 100 only by the locking recesses 21a and 21b formed at the left and right end portions of the holder 20, and the drip bag 1x is tilted so that the coffee powder in the bag body 10 enters the cup 100. There was also a problem of spilling.

  On the other hand, the present invention reduces or eliminates contact between the bag body and the inner wall of the cup when the drip bag is locked to the cup in a drip bag whose holder opens in a V shape, and maintains an appropriate extraction speed. And enabling the consumer to recognize not only the locking recesses formed at the left and right ends of the holder but also the locking recesses formed below the central folding line. For the purpose.

  In the drip bag in which the holder opens in a V shape, when the folding part is formed at the upper part and the lower part of the central folding line of the holder, the bag main body is separated from the inner wall of the cup by the two upper and lower folding parts. It was found that the problem of the extraction speed due to the contact between the cup and the inner wall of the cup can be solved, and the consumer can surely recognize the locking recess by folding the lower part of the central folding line.

That is, the present invention is a bag body formed from a water-permeable filterable sheet and filled with an extraction material inside;
A drip bag made of a thin plate-like material and comprising a holder attached to the side of the bag body,
The holder is folded in left and right at the center fold line, and the center fold line overlaps the side of the bag body,
A first cutting line, a second cutting line, and a pair of folding lines for upper folding extending from both ends of the first cutting line toward the upper edge of the holder, respectively, at the upper and lower parts of the central folding line; A pair of lower folding lines extending from both ends of the cutting line toward the lower edge of the holder, and a pair of locking recesses formed at both right and left ends of the holder so as to be raised. Provides a drip bag projecting downward along a central fold line.

  According to the drip bag of the present invention, since the folding part is formed above and below the central folding line of the holder, the bag body is pressed against the center part side of the cup by the two folding parts above and below, and the bag body and the inner wall of the cup Can be reduced or eliminated. Therefore, it is possible to prevent the extraction liquid from flowing out excessively from the contact portion between the bag body and the inner wall of the cup and maintain an appropriate extraction speed.

  In addition, the consumer can easily recognize the locking recesses formed on the left and right ends of the holder and the locking recesses formed below the center folding line, ensuring that the drip bag is It becomes possible to lock the cup.

  Hereinafter, the present invention will be described in detail with reference to the drawings. In addition, in each figure, the same code | symbol represents the same or equivalent component.

  FIG. 1 is a plan view of a coffee drip bag 1 according to an embodiment of the present invention, and FIG. 2 is a perspective view of the coffee drip bag 1 locked to a cup. FIG. 3 is a plan view of an original sheet with a holder used for manufacturing the drip bag 1, and FIG. 4 is an explanatory view of a method for manufacturing the drip bag using the original sheet.

  The drip bag 1 includes a rectangular bag body 10 formed of a water-permeable filterable sheet and filled with an extraction material therein, and a holder 20 attached to a side surface of the bag body 10.

  As the water-permeable filterable sheet forming the bag body 10, various materials can be used that are capable of brewing coffee when filled with a predetermined amount of coffee powder and poured. In general, as the sheet for leaching, for example, synthetic fibers such as polyester, nylon, polyethylene, polypropylene, vinylon, semi-synthetic fibers such as rayon, woven fabrics or nonwoven fabrics composed of natural fibers such as mulberry, Mitsumata alone or in combination, Papers such as tea bags base paper, such as mixed paper made of Manila hemp, wood pulp, polypropylene fiber, etc. are known, and these can also be used in the present invention, but the point of disposal after use of the drip bag Therefore, the water-permeable filterable sheet material preferably contains biodegradable fibers. Examples of the biodegradable fiber include polylactic acid, polybutylene succinate, and polyethylene succinate. In addition, in order to be able to impart an appropriate steaming effect to the coffee powder at the time of drip, when manufacturing a water-permeable filterable sheet from these fiber materials, it is in direct contact with the coffee powder by adjusting the porosity of the fiber layer. The layer that is in direct contact with the coffee powder is increased in the density of the multi-layered structure in which the layer to be in contact is “sparse” and the layer that is not in direct contact is “dense”. In the layer not in direct contact with the powder, it is preferable to reduce the content of hydrophobic fibers (Japanese Patent No. 3694486).

  The bag body 10 is sealed with an upper side 11a, a lower side 11b, and a side 11c, and the remaining side 11d is a ring. The upper end of the bag body 10 is cut off when the drip bag 1 is used by an opening perforation 23 formed along the upper side of the holder 20. The net planar dimensions of the bag body 10 excluding the seal part and the part cut off by the perforation 23 are 60 to 90 mm in width W1 and H1 in height with respect to a normal cup having an opening diameter of about 70 to 105 mm. It is preferable to set it as 60-90 mm.

  On the other hand, the holder 20 is formed by punching a thin plate material such as a paperboard or a plastic sheet. This thin plate-like material is also preferably formed from a biodegradable material such as polylactic acid, polybutylene succinate, polyethylene succinate and the like from the viewpoint of disposal after use of the drip bag 1.

  The holder 20 is folded in the left and right directions at the center fold line 22, and is attached to the bag body 10 so that the center fold line 22 overlaps the side 11 d on the side of the bag body 10.

  The holder 20 is formed with a first cutting line 24 and a second cutting line 25 that intersect the central folding line 22 at the upper and lower portions of the central folding line 22, respectively. A pair of upper folding lines 26 extend from both ends of the first cutting line 24 in the direction of the upper edge 20a of the holder 20, and are surrounded by the first cutting line 24 and the pair of upper folding lines 26. The part is an upper folding part 27.

  On the other hand, a pair of lower folding lines 28 extend from both ends of the second cutting line 25 in the direction of the lower edge 20b of the holder 20, and are surrounded by the second cutting lines 25 and the pair of lower folding lines 28. This part is a lower folding part 29. The second cutting line 25 has a shape protruding downward along the central folding line 22. Therefore, when the lower folding part 29 is pushed in as shown by the arrow in FIG. 2, a locking recess 21 c is formed below the second cutting line 25.

  In the illustrated embodiment, the first cutting line 24 obliquely intersects the central folding line 22 and has a symmetrical “<” shape around the central folding line 22. The shape is not limited to this and may be in a substantially horizontal direction.

  In addition, a pair of latches formed at the left and right ends of the holder 20 away from the central folding line 22 are formed so as to be able to be raised below the band-shaped portion 30 extending from the side edge 20c of the holder along the holder upper edge 20a. A recessed piece 31 is formed. The locking recess piece 31 has locking recesses 21a and 21b, and the recesses 21a and 21b and the side of the locking recess 21c below the second cutting line 25 on the side of the holder upper edge 20a. The distance H2 with the lower side 11b of the bag body 10 is 15 to 35 mm. This distance is shorter than the distance between the upper edge side of the holder of the locking recess in the conventional drip bag and the lower side of the bag body, so that in the drip bag 1 of this embodiment, the bag body 10 is extracted during drip. To prevent soaking.

  In addition, as for the sticking part which sticks the holder 20 to the bag main body 10, from the point which improves the water permeability as the whole drip bag 1, it is preferable to stick partially as long as the bag main body 10 can be supported stably. . Therefore, for example, as shown in FIG. 1, the sticking part is the periphery of the opening of the bag body 10 and the vicinity of the base part of the locking concave part 31, and the others are non-sticking areas. Is preferred.

  As a method of using the drip bag 1, first, the upper edge side of the drip bag 1 is cut out from the opening perforation 23 of the holder 20, and the bag body 10 is opened.

  Next, the upper folding part 27 surrounded by the first cutting line 24 and the upper folding line 26 is pushed in as indicated by the arrow in FIG. 2, and the second cutting line 25 and the lower folding line 28 are The enclosed lower folding part 29 is also pushed in as shown by the arrow in the figure. Accordingly, the V-shaped opening of the holder 20 folded in half at the central folding line 22 is maintained, and the bag body 10 in the vicinity of the central folding line 22 is prevented from being closed during drip. Push to the side.

  Next, the three locking recesses 21 a, 21 b, and 21 c are locked to the upper edge of the cup 100, and hot water is poured from the opening of the bag body 10 to obtain a coffee extract in the cup 100. FIG. 5 is a top view at this time. As shown in the figure, according to this drip bag 1, the bag body 10 is pushed into the central portion of the bag body at two locations of the upper folding portion 27 and the lower folding portion 29 of the holder 20. And the contact area between the cup 100 and the inner wall of the cup 100 can be reduced or eliminated, and the coffee extract can be prevented from flowing into the cup too quickly through the inner wall of the cup 100.

  Moreover, the bag main body 10 is not immersed in the coffee extract in a state where the drip bag 1 is locked to the cup 100 in this way. For this reason, it becomes possible to add delicious coffee.

  As shown in FIG. 3, the drip bag 1 is produced by preparing a sheet fabric 40 in which holders 20 are arranged and adhered to a sheet 41 of a long water-permeable filterable sheet at predetermined intervals, and this is packaged. As shown in FIG. 4, it is folded into two at the center folding line 22 of the holder as shown in FIG. 4, and the side 11c, the upper side and the lower side of the bag body 10 are integrated so that 11a and 11b cannot be separated by heat or ultrasonic waves. While sealing, the drip bag 1 is continuously formed up and down by sequentially filling coffee powder as indicated by the arrows, and individual drip bags are obtained by cutting them one by one.

  As described above, the coffee drip bag filled with coffee powder in the bag body has been described, but the extraction material filled in the drip bag of the present invention is not limited to coffee powder, even if tea leaves such as tea and green tea, Chinese herbal medicine etc. are filled. Good.

  The drip bag of the present invention is useful as an extraction tool that drips various extraction materials including coffee powder and easily obtains the extract.

It is a top view of a drip bag. It is a perspective view of the drip bag of the state latched in the cup. It is a top view of the sheet original fabric with a holder used for manufacture of a drip bag. It is explanatory drawing of the manufacturing method of the drip bag which uses the sheet | seat original fabric with a holder. It is a top view of the state which made the drip bag of the Example latched to the cup. It is a top view of the state which locked the conventional drip bag which a holder opens in V shape to a cup.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drip bag of this invention 1x Conventional drip bag 10 Bag main body 11a Upper side 11b Lower side 11c Side side 11d Side side 12 Perforation 20 Holder 20a Holder upper edge 20b Holder lower edge 20c Holder side edges 21a, 21b, 21c Stop recess 22 Central folding line 23 Perforation 24 First cutting line 25 Second cutting line 26 Upper folding line 27 Upper folding part 28 Lower folding line 29 Lower folding part 30 Band-shaped part 31 Locking concave part 40 Sheet Original fabric 41 Original fabric of water-permeable filterable sheet 100 Cup A Contact portion between bag main body and inner wall of cup H1 Height of bag main body W1 Width of bag main body

Claims (3)

A bag body formed from a water-permeable filterable sheet and filled with an extraction material inside;
A drip bag made of a thin plate-like material and comprising a holder attached to the side of the bag body,
The holder is folded in left and right at the center fold line, and the center fold line overlaps the side of the bag body,
A pair of upper folding lines extending from the both ends of the first cutting line to the upper edge when using the holder at the upper and lower portions of the central folding line, respectively. A pair of lower folding lines extending from both ends of the second cutting line to the lower edge of the holder, and a pair of locking recesses formed so as to be raised at both right and left ends of the holder,
The lower folding line extends diagonally so as to gradually move away from the central folding line from both ends of the second cutting line toward the lower edge of the holder,
A drip bag in which the second cutting line protrudes downward along the central folding line.   The drip bag according to claim 1, wherein the adhering portion between the bag main body and the holder is formed only around the opening of the bag main body and in the vicinity of the base of the locking concave piece.   The drip bag according to claim 1 or 2, wherein the extraction material is coffee powder or tea leaves.

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