JPH07250762A - Coffee bag - Google Patents

Abstract

PURPOSE:To quickly extract regular coffee, and prevent milled coffee beans from being leaked at storage by sealing the upper part of the inner cylindrical part of a pipe consisting of an outer cylinder part and the inner cylinder part, blocking a through-hole provided on the circumferential wall of the inner cylinder part within a bag body at bag storage, and pulling out the pipe inner cylinder part at use. CONSTITUTION:A slender pipe 4 is an insert type double pipe consisting of an outer cylinder part 6 and an inner cylinder part 7, the upper part 8 of the inner cylinder part 7 is blocked, and a through-hole 9 is provided on the outer circumferential wall of the inner cylinder part 7. The through-hole 9 is set in a position such that it is situated and blocked within a bag body 3 at bag storage, and opened when the inner cylinder part 7 is pulled upward at use. The gas generated from milled coffee beans is passed into the inner cylinder part 7 from the outer cylinder part 6 and released to the outer part, whereby the bag body internal pressure is never increased, and hot water can be quickly penetrated into the bag. At storage, the pipe inner cylinder part 7 is pushed in and downsized, and the through-hole 9 is blocked, whereby the leak of the milled coffee beans is prevented.

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention can quickly and easily extract an appropriate concentration of coffee from packed ground coffee beans.
Moreover, the present invention relates to a coffee bag in which ground coffee beans do not leak during storage.

[0002]

2. Description of the Related Art In recent years, many kinds of instant foods have been developed and sold in association with westernized and simplified eating habits. In black tea and green tea, the proportion of tea bag products in the total production is rapidly increasing, but each person has a strong preference for coffee, and instant coffee is clearly inferior to regular coffee in terms of the unique aroma of coffee. Therefore, the consumption of regular coffee remains high.

In regular coffee, roasted coffee beans are usually ground just before drinking, so that the flavor generated during roasting is less diffused. To drink regular coffee, it is necessary to grind roasted coffee beans and then brew them with boiling water using a coffee siphon or dripper.

For this reason, at present, a coffee bag in which ground coffee beans are packed in a paper bag one cup at a time and even regular coffee can be easily drunk like instant coffee has been commercialized. However, in the existing coffee bag, the gas generated from ground coffee beans when the hot water is poured fills the bag, so that the coffee bag floats above the hot water, so that the hot water easily penetrates into the coffee bag. No, it takes a very long time to extract the coffee liquid.

[0005]

With respect to the problem that the coffee bag floats up, it has been proposed to use filter paper with coarser pores in the coffee bag than before. In this case, the problem that the coffee bag floats on the hot water is alleviated to some extent, but the ground coffee fine powder leaks out of the bag, and the ground coffee fine powder is deposited on the bottom of the coffee cup. There is also a product in which a plastic rod is attached to the upper end of the coffee bag to forcibly sink the floating coffee bag. It is surprisingly difficult to forcibly sank a coffee bag with a plastic stick, and it is easy for awkward people to get hot water in their hands or to flip a coffee cup.

In order to solve the problem that the coffee bag floats on the hot water, the present inventor has already proposed to use a telescopic double pipe in the bag. In this method, when hot water is poured into a coffee bag, the gas generated from ground coffee beans escapes through a thin pipe to the outside, so that the hot water quickly permeates into the bag without increasing the pressure inside the bag. . In this bag, a small amount of ground coffee beans in the bag body sometimes leaked out from the thin pipe during storage and sale.

The present invention has been proposed to further improve the above-mentioned problems associated with coffee bags,
It is an object of the present invention to provide a coffee bag in which regular coffee can be quickly extracted and ground coffee beans do not leak during storage.

[0008]

In order to achieve the above object, a coffee bag 1 according to the present invention is a filter for filling and enclosing an appropriate amount of ground coffee beans 2 (Fig. 2) as shown in Fig. 1. A bag body 3 made of material, a thin pipe 4 that penetrates from the upper edge of the bag body 3 to the inside of the bag body and adheres a peripheral wall, and a storage bag body 5 in which the bag body 3 is put and sealed at the time of storage and sale. With.

The bag body 3 used in the present invention is a closed bag in which a suitable amount of ground coffee beans 2 is filled and then the periphery of a filter material such as a filter paper, a filter cloth or a filter felt is adhered. The peripheral adhesion of the filter material is generally performed by heat sealing, and may be performed by sewing with a sewing machine or application of an adhesive as desired.

As shown in FIG. 3, the thin pipe 4 is a nested double pipe composed of an outer tubular portion 6 and an inner tubular portion 7 which are closely fitted to each other. The outer tube portion 6 of the thin pipe 4 has an upper peripheral wall that extends over a considerable width D (FIG. 3).
The thin pipe 4 is stably held by the bag body 3 by being adhered between the upper peripheral portions 14 of the bag body 3. Lower end portion 1 of outer cylinder portion 6
5 is usually about 1/100 of the total height from the inner bottom end of the bag body 3.
It is preferable to arrange it up to the height position of 3.

It is preferable that the thin pipe 4 is provided with a recess 17 in the upper peripheral wall of the outer tubular portion 6 and the lower end portion 18 thereof is locked by the recess 17 when the inner tubular portion 7 is pulled out upward. The thin pipe 4 used in the present invention is generally a plastic extruded product, but it is also possible to use a natural straw, a pipe made of rubber or a metal.

As is apparent from FIG. 3, in the thin pipe 4, the upper portion 8 of the pipe inner tubular portion 7 is closed, and the through hole 9 is provided at an appropriate position on the peripheral wall of the inner tubular portion. The through hole 9 is located inside the bag body 3 and substantially closed when the bag is stored as shown in FIG. 3 (1).
As described above, it is set at a position where it is opened when the inner cylinder portion 7 is pulled out at the time of use.

In the modified example of FIG. 4, the upper portion 8 of the pipe inner tubular portion 7 and the lower end portion 15 of the outer tubular portion 6 of the thin pipe 4 are closed, and the through holes 10 and
11 is provided. At least one of the through holes 10 and 11 is
As shown in FIG. 4 (1), when the bag is set at a position where it is substantially closed during storage, and when the pipe inner tubular portion 7 is pulled out upward during use as shown in FIG. 4 (2), both through holes 10 are formed. , 1
The inside of the bag main body 3 is communicated with the outside via 1.

In another modification of FIG. 5, in the thin pipe 4, the lower end portion 15 of the outer tubular portion 6 is closed, and through holes 16 are provided at appropriate positions on the peripheral wall of the outer tubular portion. The through hole 16 is closed by the peripheral wall of the inner tubular portion 7 during bag storage as shown in FIG. 5 (1), and is opened when the inner tubular portion 7 is pulled out upward during use as shown in FIG. 5 (2). Set to the position.

[0015]

In the coffee bag 1 according to the present invention, the pipe inner tubular portion 7 is pulled out upward from the outer tubular portion 6, placed in a coffee cup 12 as illustrated in FIG. 6, and hot water is poured from above the bag. The gas generated from the ground coffee beans 2 in the bag body 3 passes upward from the outer cylinder portion 6 of the thin pipe 4 through the inner cylinder portion 7 and escapes to the outside, whereby the bag body 3
Since the inside of the bag is not pressurized, hot water quickly penetrates into the bag.

The coffee bag 1 is miniaturized by pushing the pipe inner tube portion 7 into the outer tube portion 6 at the time of storage and sale.
Put it in the storage bag 5 and seal it. At this time, the inner cylindrical portion 7
Alternatively, by substantially closing the through holes 9, 10, 11 or 16 in the peripheral wall of the outer tubular portion 6, the bag 1 is made compact and the ground coffee beans are prevented from leaking from the thin pipe 4.

[0017]

EXAMPLES Next, the present invention will be described based on examples. FIG. 1 shows a coffee bag 1 of the present invention. The coffee bag 1 has a bag body 3 which is filled and sealed with an appropriate amount of ground coffee beans 2 (FIG. 2), and a thin pipe 4 which vertically penetrates from the center of the upper edge of the bag body 3 into the bag body. The filter material of the bag body 3 is, for example, a well-known filter paper 13 which is made by mixing nylon resin into chemical pulp and straining it thinly. When this filter paper is cut into a rectangular shape, folded in two, and the peripheral portion 14 is heat-sealed after storing the ground beans, for example, it becomes a rectangular flat bag shape of 65 × 85 mm.

The bag body 3 is filled with about 5 to 6 g of ground coffee beans 2, which is slightly smaller than the conventional one. The bag body 3 is placed in a moisture-proof storage bag body 5 (see the alternate long and short dash line in FIG. 1) and hermetically sealed so that even coffee ground beans 2 obtained by grinding roasted coffee beans can have a long aroma specific to coffee. Can be held for a period.

The thin pipe 4, which is a plastic extrusion-molded product, is a nested double pipe composed of an outer tubular portion 6 and an inner tubular portion 7 which are fitted in close contact with each other. In the thin pipe 4,
The inner cylinder portion 7 has, for example, an inner diameter of about 3 mm and a length of about 70 mm, and the inner cylinder portion is replaced by the outer cylinder portion 6 (inner diameter of about 4.5 mm, length of about 7 mm).
(0 mm) is slidably fitted. As shown in FIG. 2, the filter papers 13 on the front and back of the bag body 3 are brought into close contact with the upper peripheral wall of the outer cylinder portion 6 so that the upper peripheral wall of the outer cylinder portion 6 extends over a considerable width D (FIG. 3). The thin pipe 4 is stably held by the bag body 3 by being adhered between the upper peripheral portions 14 of the bag body 3. Generally, most of the outer cylinder portion 6 is the bag body 3.
And the lower end 15 of the outer cylinder reaches a position lower than about 1/2 of the total height of the bag body 3.

As is apparent from the thin pipe 4 shown in FIG. 3, the upper tubular portion 6 of the outer tubular portion 6 is constricted, and the outer tubular portion 7 is formed with the collar portion 21 at the outer periphery of the lower end thereof. It is configured so as not to be detached from the outer cylinder portion 6. In the thin pipe 4, a pair of recesses 17 in the upper peripheral wall of the outer tubular portion 6,
17 is provided. Due to the recesses 17, 17, the lower end portion 18 is locked when the inner cylinder portion 7 is pulled out upward, and the thin pipe 4 does not contract when the bag body 3 is shaken by pouring hot water, which is safe.

As is apparent from FIG. 3, in the thin pipe 4, the upper portion 8 of the pipe inner tubular portion 7 is closed. Even if the pipe 4 is heat-pressed in the lateral direction, the upper part 8 is blocked.
The pipe tip may be melt-closed or a suitable plug may be fused. The through hole 9 provided at an appropriate position on the peripheral wall of the inner cylindrical portion 7 is closed by the peripheral wall of the outer cylindrical portion 6 during bag storage as shown in FIG. 3 (1), and as shown in FIG. 3 (2). It is set to a position where it can be opened by pulling it up. The through hole 9 is
If it is located inside the bag body 3 when the bag is stored, it does not need to be closed by the peripheral wall of the outer cylinder portion 6, and a through hole is often drilled in the peripheral wall of the outer cylinder portion 6 at the time of punching.

In the modified example of FIG. 4, the upper portion 8 of the pipe inner tubular portion 7 and the lower end portion 15 of the outer tubular portion 6 in the thin pipe 4 are closed, and the through holes 10 are formed in both peripheral walls, respectively.
11 is provided. At least one of the through holes 10 and 11 is
As shown in FIG. 4 (1), the through hole 11 is generally closed by the peripheral wall of the inner tubular portion 7 at a position where it is substantially closed when the bag is stored. In this embodiment, ground coffee does not enter the thin pipe 4 when the bag 1 is stored and sold.

In another modification of FIG. 5, in the thin pipe 4, the lower end portion 15 of the outer tubular portion 6 is closed, and the through hole 16 is provided at an appropriate position on the peripheral wall of the outer tubular portion. The through hole 16 is closed by the peripheral wall of the inner tubular portion 7 during bag storage as shown in FIG. 5 (1). In this embodiment, there is a problem that the user may misunderstand the normal straw and inhale the thin pipe 4 by mistake.

When storing and selling the coffee bag 1, the inner tubular portion 7 of the thin pipe 4 is pushed into the outer tubular portion 6 as shown in FIG. 1, and the inner tubular portion 7 is removed from the outside when used as shown in FIG. The thin pipe 4 is pulled out from the tubular portion 6 and extended to a length of about 110 mm. After the thin pipe 4 is extended, the coffee bag 1 is put in the coffee cup 12 (FIG. 6), and the hot water is poured from above the bag while holding the upper end of the thin pipe 4.

When the ground coffee beans 2 inside the bag are heated with hot water, a gas such as carbon dioxide originally held by the ground coffee beans is released, and the gas is directed upward from the outer cylinder part 6 to the inner cylinder part 7. To escape to the outside. As a result, the inside of the bag body 3 is not pressurized by the released gas, the hot water quickly permeates into the inside of the bag body 3, and the coffee bag 1 does not float on the hot water when the hot water is poured.

Having the thin pipe 4 allows the bag body 3 to be easily and safely shaken back and forth while pouring hot water. The thin pipe 4 is much stiffer than the thread of a conventional tea bag, and since the lower end of the pipe contacts the filter paper 13 on the front and back of the bag body 3, the bag body 3 can be reliably shaken and the coffee liquid Extraction can be facilitated.

A test example in which a coffee liquid is extracted from the coffee bag 1 with hot water for 2 minutes is shown in the table below together with a conventional commercially available coffee bag.

[0028]

[Table 1]

From the above table, when the coffee bag 1 is used, the coffee liquid can be extracted more quickly than before by hot water. As a result, when the coffee bag 1 is used, even if the amount of ground coffee beans 2 used to fill the bag body 3 is reduced by about 10 to 15% as compared with the conventional case, the same coffee extract as in the conventional case can be obtained.

[0030]

As in the conventional case, the coffee bag according to the present invention is simply put in the coffee cup and poured with hot water from above. At this time, the gas generated from the ground coffee beans inside the bag passes upward from the outer cylinder to the inner cylinder and escapes to the outside. Permeate into At the same time, shaking the bag body while holding the thin pipe allows the coffee liquid to be quickly extracted, and the extraction time is about 1/3 of the conventional time.
In the thin pipe, when the upper part of the pipe inner cylinder is closed, it is also possible to eliminate the problem that the user misunderstands a normal straw and inhales the thin pipe.

In the coffee bag of the present invention, when the pipe inner tubular portion is pushed into the outer tubular portion at the time of storage and sale, the bag is formed by closing the through hole of the inner tubular portion peripheral wall or the outer tubular portion peripheral wall. It also prevents the ground coffee beans from leaking to the outside through the thin pipe. A recess is provided on the upper peripheral wall of the outer tubular part, and the lower end is locked when the inner tubular part is pulled out upward by the recess, so that the thin pipe does not shrink when pouring hot water and shaking the bag body. So it's safe.

In the coffee bag of the present invention, when pouring hot water, it does not float up on the hot water, so there is no need to use a filter material having coarser pores than before, as a result, ground coffee grounds powder leaks out of the bag. And no ground ground fine powder settles on the bottom of the coffee cup. Further, since the hot water quickly permeates into the bag, the amount of ground coffee beans used to fill the bag body can be reduced by about 10 to 15% as compared with the conventional case.

With the coffee bag of the present invention, it suffices to simply pour hot water, and there is no need to forcibly sink the coffee bag above the hot water with a mounting rod or the like. For this reason, regular coffee can be easily drunk without the time and effort required for instant coffee, without the need for hot water to come into contact with the coffee or to flip the coffee cup over.

[Brief description of drawings]

FIG. 1 is a schematic side view showing a coffee bag according to the present invention.

FIG. 2 is a horizontal sectional view showing a thin pipe cut along a line AA of FIG. 1 and a bag body partially cut away.

FIG. 3 shows a state in which the inner tubular portion of the thin pipe is pushed into the outer tubular portion (1) and the inner tubular portion is pulled out upward (2).
It is an expanded sectional view showing.

FIG. 4 is an enlarged sectional view similar to FIG. 3 showing a modified example of the present invention.

FIG. 5 is an enlarged sectional view similar to FIG. 3, showing another modification of the present invention.

FIG. 6 is a side view illustrating a usage state of the coffee bag of FIG. 1.

[Explanation of symbols]

 1 Coffee Bag 4 Thin Pipe 6 Pipe Outer Cylinder 7 Pipe Inner Cylinder 8 Upper Block of Inner Pipe Cylinder 9 Through Hole in Pipe Inner Cylinder 17 Upper Depth of Pipe Outer Cylinder

Claims (4)

[Claims] 1. A bag main body made of a filter material for filling and enclosing an appropriate amount of ground coffee beans, and a thin pipe penetrating from the upper edge of the bag main body into the bag to adhere and adhere the peripheral wall, The pipe is a nested double pipe consisting of an outer cylinder part and an inner cylinder part, and seals the upper part of the pipe inner cylinder part, and provides through holes at appropriate positions in the peripheral wall of the inner cylinder part. The coffee bag is set in such a position that when the bag is stored, the hole is located inside the bag body and is substantially closed, and when the bag is used, it is opened when the pipe inner tube is pulled out upward. 2. A bag main body made of a filter material for filling and enclosing an appropriate amount of ground coffee beans, and a thin pipe penetrating from the upper edge portion of the bag main body into the bag to adhere and adhere the peripheral wall, The pipe is a nested double pipe composed of an outer cylinder part and an inner cylinder part, and the upper part of the pipe inner cylinder part and the lower part of the pipe outer cylinder part are closed to form through holes in both peripheral walls, A coffee bag in which at least one of the through holes is set to a position that is substantially closed during storage of the bag, and when the pipe inner tubular portion is pulled out upward during use, the inside of the bag body communicates with the outside through both through holes. 3. A bag main body made of a filter material for filling and enclosing an appropriate amount of ground coffee beans, and a thin pipe penetrating from the upper edge of the bag main body into the bag to adhere and adhere the peripheral wall, The pipe is a nested double pipe consisting of an outer cylinder part and an inner cylinder part, and seals the lower part of the pipe outer cylinder part, and provides through holes at appropriate positions in the peripheral wall of the outer cylinder part. The coffee bag is located at a position where it is closed by the peripheral wall of the pipe inner tube when the bag is stored and is opened when the pipe inner tube is pulled out upward during use. 4. A recess is provided in the upper peripheral wall of the pipe outer cylinder portion,
The pipe inner tubular portion is prevented from spontaneously dropping into the pipe outer tubular portion again by locking the lower end portion of the pipe inner tubular portion by a recess when the pipe inner tubular portion is pulled out upward. The stated coffee bag.