JP3719291B2 - Coffee drip bag - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coffee drip bag in which a drip coffee can be easily poured by being locked to a container such as a cup and pouring hot water.
[0002]
[Prior art]
One of the typical ways of coffee is the drip method. The drip method is a method in which a dose of coffee powder is put into a cloth strainer such as cotton flannel, hot water is gently poured, and the leachate is scraped off in about 4 to 5 minutes. In order to make coffee delicious, it is important to sufficiently extract water-soluble aromatic substances that are generally generated by caffeine and roasting contained in beans, and to prevent the dissolution of undesirable components. First, it is important to steam the whole coffee powder with hot water, swell evenly and sufficiently, and then pour the whole slowly or in several portions, and it is prohibited to boil the coffee. Yes.
[0003]
The drip method is popular as a relatively simple method for obtaining delicious coffee, but the cloth strainer used there must always be immersed in water even when not in use, and handling is complicated. . Therefore, in recent years, disposable filters such as filter papers and nonwoven fabrics are often used instead of cloth strainers.
[0004]
Also, in order to make coffee more easily, as shown in FIG. 6 ((a) plan view, (b) perspective view in a state of being locked to a coffee cup), filters such as filter paper and non-woven fabric A coffee extraction bag 1 in which a bag body 2 made of material is filled with coffee powder for a cup of coffee is also used. In the coffee extraction bag 1, a locking piece 3 having a locking recess 3 a is attached to the bag body 2 so that the bag body 2 filled with coffee powder can be locked to the coffee cup C. The locking piece 3 is formed so as to be caused by a locking member 4 made of rectangular cardboard or the like attached to the upper half side of the bag body 2.
[0005]
[Problems to be solved by the invention]
However, according to the coffee extraction bag 1 as shown in FIG. 6, the locking member 4 is stuck to the upper half side of the bag body 2, and thus the coffee extraction bag 1 is locked to the coffee cup C. In this state, the coffee powder will be located near the bottom of the coffee cup. For this reason, when pouring water into this, the whole coffee powder will be immersed in hot water from the beginning of pouring. Therefore, when pouring into the coffee powder, the coffee powder is first steamed, swelled evenly and sufficiently, and then the whole drip type coffee is poured gradually or in several batches. As a result, the aroma and taste of the resulting coffee is not as good as the original drip coffee.
[0006]
The present invention is intended to solve such a problem of the prior art, and in order to simply put coffee using a bag filled with a predetermined amount of coffee powder in a bag made of filter material such as filter paper or nonwoven fabric, The purpose is to perform a pouring process in accordance with how to drip coffee in order to make coffee with a good aroma and taste.
[0007]
[Means for Solving the Problems]
The inventor of the present invention relates to a coffee extraction bag in which a predetermined amount of coffee powder is filled in a bag body made of a filter material such as filter paper or non-woven fabric, and is used by causing the bag body to lock from a coffee cup. When the upper end of the locking recess is located on the lower half side of the bag body with respect to the stop piece, the position of the coffee powder when the coffee extraction bag is locked to the coffee cup is set to the bottom of the coffee cup. The present invention is completed by finding that a coffee drip bag that can be placed in the upper part of the coffee cup instead of the near bunch and can be poured through a pouring process according to the original drip method is obtained. It came to.
[0008]
That is, the present invention is made of a water-filterable sheet material, and includes a bag body having an opening at the upper end, and a pair of locking members provided on both the front and back surfaces of the bag body. The locking piece is formed so as to be able to be raised according to the broken line, and a support that is fixed to the surface of the bag body and supports the locking piece. The locking piece is engaged with the upper edge of the cup in the raised state. A locking recess for stopping, and an upper end of the locking recess is positioned on the lower half side of the bag body, and an angle θ from the side edge of the bag body near the fold line to the fold line is 3 to 20 providing bag-like filter which is a °.
[0009]
Further, the present invention provides a coffee drip bag in which a predetermined amount of coffee powder is filled in the bag body of the bag-shaped filter, and the upper end of the bag body is easily closed.
[0010]
According to the coffee drip bag-like filter of the present invention, the upper end of the locking recess is located on the lower half side of the bag body. Therefore, according to the coffee drip bag of the present invention using this bag-shaped filter, the bag When the main body is locked to the coffee cup, the coffee powder filled in the bag main body is held in the upper part of the cup. Therefore, when pouring into coffee powder and obtaining its leachate, the original drip coffee pouring process of steaming coffee powder at the beginning of pouring, swelling it evenly and sufficiently, and then gradually pouring the whole It is possible to obtain a coffee leachate that is excellent in fragrance and taste.
[0011]
In addition, in the original drip coffee pouring process, the pouring is usually performed in 3 to 4 times. Among these, after the coffee powder is steamed by the first pouring, the second pouring is performed. Since the flavor component of coffee is extracted most intensely, the second pouring is important for improving the flavor of the coffee, but according to the present invention, at least the second pouring is the original drip. It can be performed in the same state. Therefore, it becomes possible to obtain a coffee leachate having excellent aroma and taste.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be specifically described below with reference to the drawings. In each figure, the same numerals indicate the same or equivalent components.
[0013]
FIG. 1 is a coffee drip bag 10 according to an embodiment of the present invention (FIG. 1 (a) is a plan view, and FIG. 1 (b) is a perspective view in a state where it is locked to a coffee cup). This coffee drip bag 10 has a bag-shaped filter comprising a bag body 2 and locking members 4a and 4b, and a predetermined amount of coffee powder (usually a cup of coffee coffee) in the bag body 2 of the bag-shaped filter. After the filling), the opening at the upper end of the bag body 2 is adhered and closed. The upper end of the bag body 2 has a perforation (not shown) so that it can be easily opened.
[0014]
The bag body 2 of the coffee drip bag 10 is composed of two opposing rectangular surfaces 5a and 5b. The rectangular surfaces 5a and 5b are formed by folding one rectangular sheet in half, and the fold mountain is the lower end side 6a of the rectangular surfaces 5a and 5b. Further, both side edges 6 b and 6 c of the rectangular surfaces 5 a and 5 b are bonded to each other, and the upper end side 6 d forms an opening of the bag body 2.
[0015]
As the water-permeable filter sheet material forming the bag body 2, various materials can be used that are capable of leaching coffee when filled with a predetermined amount of coffee powder and poured. Synthetic fibers such as nylon, polyethylene, polypropylene, vinylon, semi-synthetic fibers such as rayon, woven or non-woven fabrics made of natural fibers such as mulberry, mitsumata alone or composite fibers, mixed paper made of manila hemp, wood pulp, polypropylene fibers, etc. Papers such as tea bag base paper can be used. Moreover, you may use the laminated material which consists of a several different layer as water-permeable filter sheet material. Among them, the first layer is polyester, the second layer is a mixed paper of regular polyester and low-melting polyester, the third layer is a three-layered sheet material made of melt blown nonwoven fabric made of polypropylene fine fibers, taste, fragrance, flavor This is preferable in terms of extraction time.
[0016]
The rectangular surfaces 5a and 5b on the front and back sides of the bag body 2 are provided with locking members 4 (4a and 4b) made of a thin plate material such as paper or plastic sheet, symmetrically with respect to the surfaces passing through the side edges 6b and 6c. ing. The locking member 4 includes a locking piece 3 surrounded by a cutting line La indicated by a solid line and a broken line Lb indicated by a broken line and a support 7 around the locking piece 3, and the locking piece 3 includes the cutting line La and the bending line. The locking recess 3a is locked to the upper edge of the coffee cup C as shown in FIG.
[0017]
On the other hand, the support body 7 is adhered and fixed to the rectangular surfaces 5 a and 5 b of the bag body 2, and supports the locking piece 3 to the bag body 2.
[0018]
The present invention is characterized in that the upper end 3x of the locking recess 3a of the locking piece 3 is located on the lower half side of the bag body 2. That is, when the coffee drip bag 10 is locked to the upper edge of the coffee cup C by raising the locking piece 3, the vertical position of the bag body 2 in the coffee cup C is the upper end of the locking recess 3a. It is determined according to the position in the 3 × bag body 2. And the bottom part of the bag main body 2 when the coffee drip bag 10 is locked to the coffee cup C is made the coffee cup C by setting the position of the upper end 3x of the recess 3a for locking to the lower half side of the bag main body 2. It can be located at the top inside.
[0019]
Therefore, with respect to the coffee drip bag 10 of the present invention in which the bag main body 2 is filled with a predetermined amount of coffee powder and the upper end of the bag main body 2 is closed, the upper end of the bag main body 2 is opened to open the opening. When the locking piece 3 is locked to the coffee cup C as shown in FIG. 1 (b) and the hot water is poured into the bag body 2, the initial steaming and swelling of the hot water into the coffee powder in the bag main body 2 is achieved. It is possible to dripping the leachate into the bottom of the cup by pouring the process and pouring it gradually or several times. In addition, according to the present invention, the coffee powder in the bag body 2 is not immediately soaked with the leachate from the beginning of pouring, unlike the conventional coffee extraction bag located near the bottom of the coffee cup C. . Therefore, it is possible to obtain a coffee brewing liquid having a good aroma and taste as in the case of the original drip coffee.
[0020]
In the present invention, as described above, the upper end 3x of the locking recess 3a is required to be positioned on the lower half side of the bag body 2, but the entire locking member 4 is not necessarily the bag 2. It does not have to be located in the lower half side. The installation position of the entire locking member 4 in the bag body 2 can be appropriately determined according to the material of the locking member 4, the rigidity, the formation position of the locking recess 3 a in the bag body 2, and the like. Therefore, for example, as shown in FIG. 1A, the locking member 4 extends from the lower end side 6 a of the bag body 2 upward to the center of the bag body 2 and slightly extends toward the upper end side 6 d. Alternatively, the locking member 4 may be formed on the lower half side of the bag body 2 as in the coffee drip bag of FIG.
[0021]
In the present invention, the angle θ from the side edge 6c of the bag body 2 near the broken line Lb of the locking piece 3 to the broken line Lb is appropriately adjusted to improve the stability when the coffee drip bag is locked to the coffee cup. Can be made. Although this angle (theta) is based also on the rigidity etc. of the water-permeable filterable sheet material which forms the bag main body 2, it is usually preferable to set it as 3-20 degrees, and it is preferable to set it as 5-10 degrees. If the angle θ is excessively increased as shown in FIG. 3A, when the coffee drip bag is locked to the coffee cup, the bag body 2 is inclined toward the fold line Lb as shown in FIG. Hot water leaks easily. On the other hand, if the angle θ is too small as shown in FIG. 4A, when the coffee drip bag is locked to the coffee cup, the bag body 2 is placed on the side opposite to the fold line Lb as shown in FIG. It will not be possible to pour hot water.
[0022]
The other shape of the locking piece 3 is not particularly limited. For example, the edge of the locking piece 3 on the opening side of the bag body 2 may be linear as shown in FIG. 1, or as shown in FIG. It may be Yamagata. By making it chevron, the support 7 is easily bent at the apex of the chevron, so that a wide opening can be easily obtained when the coffee drip bag is locked to the cup.
[0023]
Also, the shape of the locking recess 3a is not particularly limited. For example, the locking recess 3a may have a straight belt shape as shown in FIG. 1, or may be bent as shown in FIG.
[0024]
In the present invention, the shape of the locking member 4 is not particularly limited, but the outer edge of the locking member 4 in the vicinity of the broken line Lb of the locking piece 3 is the angle of the broken line Lb of the locking piece 3 described above. It is preferable to be parallel to the side edge 6c without tilting depending on θ.
[0025]
If the distance d between the side edge of the locking member 4 and the bag body 2 is too small (that is, if the width of the locking member 4 is wide), the opening at the upper end of the bag body 2 is narrowed. The above is preferable.
[0026]
The height z of the locking member 4 depends on the rigidity of the water-permeable filterable sheet material forming the bag body 2, but generally, when the height z is too low, the drip bag is locked to the coffee cup. Since stability is inferior, it is usually preferable to be about 35 mm or more.
[0027]
As mentioned above, although the Example of this invention was described based on drawing, this invention can take a various aspect further.
[0028]
For example, in the coffee drip bag described above, one locking member 4 is provided on each of the two front and back rectangular surfaces 5a and 5b, and one locking piece 3 is formed on each locking member 4. However, the number of the locking members 4 or the locking pieces 3 may be further increased as necessary.
[0029]
In addition, the coffee drip bag of the present invention is sealed by adhesive or heat bonding after filling a predetermined amount of coffee powder in the bag body 2, but the opening is perforated so that it can be easily opened when the bag is used. The adhesive strength of thermal bonding may be adjusted so that the rectangular surfaces of the front and back sides of the bag body can be easily peeled off.
[0030]
【Example】
Hereinafter, the present invention will be specifically described based on examples.
[0031]
Reference example 1
When the coffee is poured by the original drip, when the pouring of the coffee powder is divided into several times, the meaning of the pouring of each time is different, that is, the first pouring steams the coffee powder and the second time In order to confirm that the pouring water has the highest concentration in the pouring hot water, the third and subsequent pouring has the effect of washing away the remaining components extracted in the coffee powder by the second pouring. When the Brix-sugar content of the coffee leachate for each of the pouring was measured, the Brix was 1.7% in the leachate from the second pouring, whereas the third was 1.0%. The fourth time was 0.8%. Therefore, it turns out that the second brewing liquid is important in order to obtain the coffee brewing liquid excellent in fragrance and taste.
[0032]
Example 1
Put coffee powder in a commercially available bag-like filter, pour a small amount of hot water and steam for 30 seconds, then (1) the bag is attached to the bottom of the cup, or (2) lift the bag from the cup and place the bag on the top The hot water was poured while being held, and the Brix-sugar content of the obtained leachate was measured (45 g for the entire leachate, temperature 85 ° C.). In this case, the measurement was performed 5 times for each of method 1 and method 2, and the average was obtained. As a result, it was 1.6% for Method 1 and 1.8% for Method 2, and Method 2 was 12.5% higher than Method 1.
[0033]
The exudates obtained in the above-described manners 1 and 2 were each subjected to the original drip-type pouring operation up to the second time using a conventional coffee extraction bag (method 1) and the present invention. This corresponds to the case of using a coffee drip bag (Method 2). Therefore, it can be seen from this result that the method 2 corresponding to the leaching state by the coffee drip bag of the present invention can obtain a thicker leaching solution than the method 1 corresponding to the leaching state by the conventional coffee bag.
[0034]
【The invention's effect】
According to the present invention, a bag made of a filter material such as filter paper or non-woven fabric is filled with a predetermined amount of coffee powder, and coffee can be easily added to the original drip coffee. Therefore, it is possible to obtain a coffee leaching solution having a good aroma and taste.
[Brief description of the drawings]
FIG. 1 is a plan view of the coffee drip bag of the present invention (a in FIG. 1), and a perspective view (b in FIG. 1) in a state of being locked to a coffee cup.
FIG. 2 is a plan view of another embodiment of the coffee drip bag of the present invention.
FIG. 3 is an explanatory view of the action of the angle of the broken line of the locking piece.
FIG. 4 is an explanatory view of the action of the angle of the broken line of the locking piece.
FIG. 5 is an explanatory diagram of a deformation mode of a locking piece.
FIG. 6 is a plan view (a) of a conventional coffee drip bag and a perspective view (b) of a state of being locked to a coffee cup.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Coffee extraction bag 2 Bag main body 3 Locking piece 3a Locking recess 3x Locking recess upper end 4 Locking member 7 Support 10 Coffee drip bag

Claims (4)

It consists of a water-permeable filter sheet material, and has a bag body having an opening at the upper end, and a pair of locking members provided on both the front and back surfaces of the bag body, and the locking members can be caused according to a broken line. The formed locking piece and a support that is fixed to the surface of the bag body and supports the locking piece, the locking piece being locked to the upper edge of the cup in the raised state. And the upper end of the locking recess is located on the lower half side of the bag body, and the angle θ from the side edge of the bag body near the fold line to the fold line is 3 to 20 °. A bag-shaped filter. The polygonal line toward the bag-like filter of claim 1, wherein the side edge of the bag body angle θ to said fold line is 5 to 10 ° of. A coffee drip bag, wherein a bag body of the bag-shaped filter according to claim 1 or 2 is filled with a predetermined amount of coffee powder and the upper end of the bag body is closed. The coffee drip bag according to claim 3 , wherein the upper end of the bag body is perforated to facilitate opening.

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