JPS5922049Y2 - coffee bug - Google Patents

Description

[Detailed description of the invention] This invention is similar to a tea bag in which black tea leaves for a cup are sealed in a filter paper bag, which allows you to easily brew regular coffee without using any equipment.・About bags.

Even in today's world where instant coffee has become widespread, there are still regular coffee enthusiasts, some using saifons, others using strainers using flannel cloth or filter paper. I love drinking it.

This phenomenon is due to the fact that even though instant coffee manufacturing technology has developed, it is still not possible to sufficiently reproduce the aroma and body of coffee.

Among these regular coffee drinkers, there are some who are reluctant to go through the various procedures for brewing coffee, but many of them will be able to easily brew regular coffee. I hope that.

Already, filter paper packets containing one cup's worth of coffee powder are already on sale in aluminum foil bags vacuumed or filled with nitrogen so that you can easily brew a cup of regular coffee.

However, this product only uses a filter paper packet containing coffee powder instead of the filter paper placed on the strainer and the coffee powder placed on the filter paper, and it does not require the use of a strainer. After use, the strainer must be washed for next use.

Therefore, the object of the present invention is to provide a coffee bag that can hold regular coffee without the need for any auxiliary equipment, similar to the tea bag used for black tea.

Another object of the present invention is to provide a coffee bag that allows hot water to pass through the coffee powder layer as uniformly as possible, and into which delicious regular coffee can be poured casually.

This will be explained below according to the illustrated embodiment.

To make the bag used here, first, as shown in Fig. 1a, a rolled filter paper strip 1 is folded in half, and both sides of the doubled filter paper strip 2 are sealed with a heat sealer. Sections 3 and 3' are formed.

Thereafter, this is continuously cut into a home base shape to obtain each member 4, 4' on both sides of the bag.

Then, the bag members 4 and 4' are overlapped as shown in Fig. 1b, and the filter paper pieces 42 and 42 on the inside of the stack are
The inner bag 5 is made by joining the both side edges and/or the lower edge of the inner bag 5 to each other using a heat sealer to form a wide seal part 43.

Thereafter, as shown in FIG. 1d, the outer filter paper pieces 41 and 41' of the bag members 4 and 4' are stacked on top and bottom of the already formed inner bag 5, excluding the sealing parts 3 and 3'. Heat seal with a gold edge to make outer bag 6.

In addition, when sealing the edge seal portion 44, the string 7 is attached and the coffee powder 8 (see FIG. 2) is sealed between the inner bag 5 and the outer bag 6.

As shown in the cross section of the coffee bag made in this way, the bottom of the bag has a V-shape, and the coffee powder 8 is present on the entire bottom of the V-shape. do.

Now, if this bag is hung by the string 7 over the cup and hot water is poured from the mouth 9 of the bag into the inner bag 5, the pressure from inside the inner bag 5 and the weight added to the bag will cause the bag to 's mouth opens wide.

Then, when the hot water oozes from the inner bag 5 to the coffee powder 8 and begins to wet the coffee powder, the coffee powder expands and the slippage between the powder particles is lost and hardens.

Since this phenomenon occurs when the hot water is filled, the shape of the mouth part 9 is fixed in the expanded state.

The fixed shape of the bag 4 will not collapse even if hot water is poured one after another until the coffee is placed in the cup.

Conventionally, forming regular coffee powder into a tea bag type, and pouring boiling water into the bag made from the coffee powder packet instead of just soaking the coffee powder packet in hot water in a cup, It was thought that this bag would not be able to maintain its shape, so it was never attempted.

However, the fact is that when the coffee powder inside the bag gets wet by pouring hot water, the coffee powder solidifies into the shape of the bag and has a property that it does not lose its shape after that. Make ideas workable.

In addition, in the bag according to the present invention, the second b
As shown in the figure, when forming the bag, a layer of coffee powder 8 is basically present in all the areas where the hot water in the inner bag 5 seeps out. Because the dimensions of the sealing part are staggered, unlike a square or inverted trapezoidal bag, which is simply a bag containing coffee powder folded in half and sealed on both sides, as shown in Fig. 2C, both sides of the bag and Hot water does not directly pass from the inner bag 5' to the outer bag 6' at the lower edge, and the hot water uniformly passes through the layer of coffee powder 8, allowing good coffee to ooze out.

However, if we adhere to this basic idea and form an inverted triangular bag, the holding force at the string attachment part will be weakened and the opening of the bag will tend to become smaller, so we heat-seal the filter paper at the opening. It is preferable to reinforce the material by reinforcing it or to provide a folded portion.

It is also preferable to eliminate this drawback by forming a home base shape as in the illustrated embodiment and heat-sealing the portion where the coffee powder 8 is not present to prevent hot water from seeping out.

Various types of filter paper 1 can be used for the bag of the present invention, but it is preferable to use paper mixed with thermoplastic resin powder or fibers so that the bag can be shaped by heat sealing. preferable.

In addition, as a bag for daily use, the one shown in Figure 1d has a length of about 9 cm at the opening seal parts 3, 3', a height of about 8 cm from the tip of the V-shaped bottom of the outer bag, and an inner bag. internal depth of approximately 6
cm, the left and right sides are approximately 3.5 cm in height, and weighs 9 to 10 g.
It is appropriate to encapsulate coffee powder.

FIG. 3 shows the bag member obtained in FIG. 1a, namely the first
Using the bag members 4 and 4' shown in Fig. b, the state in the process of forming a coffee bag different from that shown in Fig. 1d is cut along the axis of symmetry of the pentagonal shape of the home base. FIG.

The remaining half is partially indicated by a dash-dotted line.

In this embodiment, the bag members 4, 4 shown in FIG.
The outer filter paper strips 41, 41' are used as filter paper strips for the inner bag, and the inner filter paper strips 42, 42', which were used for the inner bag in Figures 1b to 1d, are used as filter paper strips for the outer bag. Used as a piece.

For this purpose, the bag members 4, 4 arranged as shown in FIG.
The outer filter paper pieces 41 and 41' of the mouth seal portions 3, 3
’, and then fold the mouth seal parts 3, 3'
The folded filter paper pieces 41 and 41' are sandwiched between the filter paper pieces 42 and 42'.

Therefore, the V-shaped edge of the filter paper strip 41.41' extends approximately twice the width of the mouth seal portion 3, 3' to the filter paper strip 42.42'.
It is shorter than the V-shaped edge of the
Only one side of the edge of the filter paper strip 42, 42' is offset towards the mouth seal 3.3' from the V-shaped edge of the filter paper strip 42, 42' and is shown in dotted lines.

The filter paper strips 41.41', which are now located on the inside, and the filter paper strips 42.42', which are now located on the outside, are
Inner bag 5 and outer bag 6 are sealed in a manner generally similar to that described with respect to Figures 1C and 1d.

However, in this embodiment, since the filter paper pieces 41, 41' for the inner bag are shorter in the vertical dimension than the filter paper pieces 42, 42' for the outer bag, at least the lower edge of the V-shape It is not necessary to make the seals wide, and only the left and right side edges need to be made wide seals.

Also, since the V-shaped edge of the inner bag 5 is not integrally connected to the V-shaped edge of the outer bag 6 in this embodiment, they are connected to each other near their V-shaped tips. Connecting paper strips 45 are provided and interconnected, for example by heat sealing.

The coffee bag thus obtained consists of filter paper pieces 41 and 42.
, and a space for enclosing coffee powder formed between the filter paper pieces 41' and 42'.

This improves the coffee leaching efficiency since the bottom of the coffee bag is formed as an almost complete layer of coffee powder during pouring.

In order to obtain a similar effect, in the embodiment shown in FIGS. 1a to 1d, a communication hole (not shown) is provided in the wide seal portion 43.
can be formed.

The connection of the inner and outer bags 5 and 6 in the embodiment described above prevents the generation of a cavity due to the instantaneous expansion of air in the coffee powder layer when hot water is poured into the inner bag 5, and the inner bag 5 This will help prevent it from building up.

As can be seen from the above description, according to the present invention, the inner dimensions of the inner bag are made smaller than the inner dimensions of the outer bag, and by holding them apart from each other, hot water flows into the coffee powder when pouring hot water. It is possible to reliably form a thick coffee powder layer between the inner and outer double bags so that the coffee powder passes through the thick layer and does not leak through.

Therefore, the first important feature of the present invention is to make the inner dimension of the inner bag smaller than the inner dimension of the outer bag, and the second point is to:
The other side edges of the inner bag and the outer bag other than the upper edge are at least partially connected to hold the inner and outer bags apart during pouring, thereby creating a thick layer of coffee powder between them. The goal is to ensure the formation of

The second feature described above also has the effect of preventing the inner bag from swelling inward due to expansion of the air between the inner and outer bags during pouring depending on the connection position.

As described above, according to the present invention, it is possible to easily obtain a coffee bag in which regular coffee can be poured without requiring any auxiliary equipment, and it also does not require any technique for pouring hot water. The hot water evenly permeates and exudes into the coffee powder in the bag, making it possible to obtain good coffee.

[Brief explanation of the drawing]

Figures 1a to 1d are schematic diagrams showing the manufacturing process and structure of a coffee bag according to an embodiment of the present invention, Figure 2a is a diagram showing a cross section of this coffee bag when in use, and Figure 2
Figure b is a diagram showing the horizontal end face in a similar state, Figure 2C is a diagram similar to Figure 2b of the coffee bag according to the invention of the earlier application, and Figure 3 is a diagram showing the structure of another embodiment according to the present invention. be. Explanation of symbols 1: Filter paper, 3.3': Watertight seal part, 5
: Inner bag, 6: Outer bag, 7: Hanging string, 8: Coffee powder,
9: Bag opening, 42.42': Inner bag forming filter paper piece, 44:
Bottom seal part, 45: connecting piece.

Claims (3)

[Scope of utility model registration request] (1) An outer bag that opens upward by integrally joining the side edges of a pair of outer filter paper pieces except for the upper edges, and an outer bag that opens upwards by integrally joining the side edges of a pair of inner filter paper pieces except for the upper edges. and an inner bag that is joined together and opened upward, and the inner bag is placed inside the outer bag and their upper edges are integrally joined to form a double filter paper bag. , a transparent coffee bag in which coffee powder is sealed between the inner and outer bags, and loop-shaped hanging strings are attached to the upper ends of both side edges of the double bag, an improved coffee bag characterized by the following structure, as described above. The inner dimensions of the other side edges excluding the upper edge of the inner bag are shorter than the corresponding inner dimensions of the other side edges excluding the upper edge of the inner bag. Other side edges excluding the upper edge,
The corresponding side edges of the outer bag other than the upper edge are at least partially connected, and the inner bag and the outer bag are held apart from each other. (2) The double filter paper bag is formed from four superimposed filter paper pieces having substantially congruent shapes, and the other side edges except the upper edge of the inner bag are connected to the outer bag. The upper edge of the outer bag is integrally joined over a wider width than the other side edges excluding the upper edge, so that the inner dimensions of the other side edges excluding the upper edge of the inner bag correspond to the upper edge of the outer bag. The coffee bag according to claim 1, wherein the coffee bag is shorter than the inner dimensions of the other side edges. (3) A practical use characterized in that the inner bag and the outer bag have a V-shaped lower edge, vertical side edges, and a horizontal upper edge, and are generally shaped like a baseball home base. A coffee bag according to claim 1 or 2 of the patent registration claim.