JP2024095301A - Drip Bag - Google Patents

Abstract

To provide a drip bag forming sheet and a drip bag that can easily seal in beverage extraction ingredients and maintain a beautiful conical shape when the filter is opened.
[Solution] A pair of holders 3, each forming an overall arc shape, are attached to a band-shaped filter material 2 extending in the flow direction in line symmetry about the center line of the filter material 2 in the width direction, and are provided at regular intervals in the flow direction. Each of the pair of holders 3, 3 extends in an arc shape between a pair of diagonal corners of an imaginary rectangle S with the center line L1 as one side, and has an upper attachment part 4 fixed to the filter material 2, and on the side surrounded by the arc shape of the upper attachment part 4, there is formed a hanging part 5 for hooking onto the opening of a container, and a lower attachment part formed inside the hanging part 5 and fixed to the filter material 2, and the upper attachment part 4 extends and protrudes on both sides of the hanging part 5.
[Selected Figure] Figure 1

Description

The present invention relates to a drip bag.

Conical drip bags are widely known, and can be set in a container to easily extract one cup of coffee or other beverage. Conventional conical drip bags have a holder made of paper or the like attached to each of the double filters, covering almost the entire outer surface of each filter. In addition, the portion of the holder that is attached to the filter is as large as possible in the width direction and vertical direction of the filter to match the shape of the holder that covers the entire filter.

JP 2016-105822 A

Conventional cone-shaped drip bags have a holder that covers the bottom of the cone where the extraction ingredients such as coffee beans are stored, pressing down on the filter, which makes it difficult to close the filter and makes the drip bag bulge, making it inconvenient to store. In addition, the part of the filter that the holder is attached to is set as large as possible, so when the filter is opened, the cone shape becomes distorted, which is not good for dripping beverages.
Therefore, the present invention provides a drip bag forming sheet and a drip bag that can easily seal in beverage extraction ingredients and maintain a beautiful conical shape when the filter is opened.

The sheet for forming drip bags of the present invention includes a pair of holders attached to a band-shaped filter material extending in the flow direction, the pair of holders being symmetrically attached to the center line of the filter material in the width direction and forming an overall arc shape, the pair of holders being provided at regular intervals in the flow direction, the pair of holders extending in an arc shape between a pair of diagonal corners of an imaginary rectangle having the center line as one side, and an upper attachment part fixed to the filter material, and a hanging part for hanging on an opening of a container and a lower attachment part formed inside the hanging part and at least a portion of which is fixed to the filter material, on the side surrounded by the arc shape of the upper attachment part, the upper attachment part protruding and extending on both sides of the hanging part.
This configuration makes it easy to seal in the beverage extraction ingredients while securely holding the opening of the filter, and also allows the drip bag to form a beautiful three-dimensional cone shape when in use.
(2) A conical support part may be formed extending from at least one end of the upper adhesive part of the sheet for forming a drip bag of the present invention toward a corner of the imaginary rectangle and fixed to the filter.
With this configuration, it is easier to hold the cone shape in the vertical direction when using the drip bag.
(3) The sheet for forming drip bags of the present invention includes a pair of holders attached to a band-shaped filter material extending in the flow direction, the pair of holders being symmetrically attached to the center line of the filter material in the width direction and forming an overall arc shape, the pair of holders being provided at regular intervals in the flow direction, the pair of holders extending in an arc shape between a pair of diagonal corners of a virtual rectangle having the center line as one side, the pair of holders each having an upper attachment part fixed to the filter material, and a hook part for hooking onto an opening of a container and a lower attachment part formed inside the hook part and at least a part of which is fixed to the filter material on the side surrounded by the arc shape of the upper attachment part, the lower attachment part being formed within a central two-quarter region obtained by dividing the upper attachment part into four equal parts in the direction of extension of the arc shape, and being formed outside a virtual arc having a radius of half of one side forming the corner as a center at a corner on the side surrounded by the upper attachment part.
This configuration makes it easy to seal in the beverage extraction ingredients while securely holding the opening of the filter, and also allows the drip bag to form a beautiful three-dimensional cone shape when in use.
(4) A conical support part may be formed extending from at least one end of the upper adhesive part of the sheet for forming a drip bag of the present invention toward a corner of the imaginary rectangle and fixed to the filter.
With this configuration, it is easier to hold the cone shape in the vertical direction when using the drip bag.
(5) The hanging portion of the sheet for forming a drip bag of the present invention has a shoulder portion to be hung on an opening of the container in use and a locking portion disposed on a peripheral surface of the container, and the shoulder portion may be formed by cutting out a part of the arc shape so as to constitute a part of the arc shape of the upper attachment portion.
With this configuration, the height of the upper adhesive portion and the shoulder portion can be adjusted relative to the container.
(6) The filter material of the drip bag forming sheet of the present invention may have a tear perforation formed along an outer edge of the upper adhesive part, or the upper adhesive part may have a tear perforation formed along the inner edge or the outer edge between an inner edge and an outer edge of the upper adhesive part, so that the filter material can be torn together with the upper adhesive part.
According to this configuration, after the drip bag is made from the drip bag-forming sheet, the filter can be easily broken along the upper attachment portion.
(7) In the filter material of the sheet for forming a drip bag of the present invention, a break line may be formed between a pair of holders provided at regular intervals in the flow direction.
According to this configuration, it is easy to create a drip bag using the drip bag forming sheet.
(8) The drip bag of the present invention is formed by folding the drip bag-forming sheet described in the above (6) along the center line between a pair of holders, cutting the filter material between the pair of holders formed in the flow direction, and sealing the other three sides of an imaginary rectangle surrounding the pair of holders with the center line as one side, in a state in which beverage extraction ingredients are contained between the folded filter material.
With this configuration, the conical drip bag can contain a larger amount of beverage extraction ingredients.
(9) In the drip bag of the present invention, a part of the filter material may be cut off by a tearing perforation formed along an outer edge of the upper adhesive part, or by a tearing perforation formed along the inner edge or the outer edge between the inner edge and the outer edge of the upper adhesive part, and capable of tearing off the filter material together with the upper adhesive part.
According to this configuration, after the drip bag is made from the drip bag-forming sheet, the filter can be easily broken along the upper attachment portion.
(10) The drip bag according to the above (8) may be configured so that a sealing portion is formed in a part of the bag-shaped filter material that is folded and has four sides closed, and that contains and closes the beverage extraction ingredients.

The drip bag forming sheet and drip bag of the present invention have the effect of making it easy to seal in the beverage extraction ingredients and maintaining a beautiful conical shape when the filter is opened.

FIG. 1 is a plan view showing a portion of a drip bag forming sheet according to an embodiment of the present invention. FIG. 2 is an enlarged plan view of one imaginary rectangle of the drip bag forming sheet according to the embodiment of the present invention. FIG. 11 is a plan view of a drip bag according to another embodiment of the present invention, showing the state before use. 1A is a front perspective view of a drip bag according to another embodiment of the present invention, showing a state of use; FIG. 11 is a plan view showing a portion of a drip bag forming sheet according to another embodiment of the present invention.

Below, an embodiment of the drip bag of the present invention will be described with reference to the drawings. Note that the dimensions of each part of the drawings used in the following description are not necessarily the same as the actual ones, and can be changed as appropriate. In addition, in this specification, "upper" and "lower" refer to the positional relationship or orientation when the drip bag is placed in a container such as a cup, and "left" and "right" refer to the positional relationship or orientation when the drip bag is placed in a container such as a cup and viewed from one side of the filter.

As shown in FIG. 1, the drip bag forming sheet 1 of this embodiment is a long strip-shaped filter material 2 in the flow direction (left-right direction on the paper), and a pair of holders 3, 3 are attached to the filter material 2 in line symmetry with a center line L1 in the width direction (up-down direction on the paper) at regular intervals in the flow direction. The pair of holders 3, 3 are generally arc-shaped (approximately semicircular in this embodiment), and are provided on the filter material 2 so that the arc shapes face the same direction in the flow direction.

The filter material 2 is made of a fabric capable of filtering liquids that can be used to extract beverages such as coffee. Specifically, the filter material 2 is made of nonwoven fabric, paper, mesh fabric, composite fabric of paper and nonwoven fabric, composite fabric of nonwoven fabric and mesh, etc.

The width of the filter material 2 is not particularly limited, but it is generally rectangular in size so that it can be used to extract one cup of beverage in a mug or other container, and generally has dimensions that allow two pieces of 40 mm x 40 mm to 100 mm x 100 mm (typically 60 mm x 60 mm to 80 mm x 80 mm) to be taken in the width direction.

Each of the pair of holders 3, 3 extends in an arc shape between a pair of diagonals K1, K3 or K2, K3 of an imaginary rectangle S with the center line L1 as one side, and has an upper attachment part 4 fixed to the filter material 2, and a hook part 5 provided on the side surrounded by the arc shape of the upper attachment part 4.

The upper adhesive portion 4 is formed in a band shape that describes a circular arc. More specifically, in this embodiment, the upper adhesive portion 4 has an arc shape with the radius of almost the entire side of the imaginary rectangle S. The width of the upper adhesive portion 4 is not particularly limited, but can be formed to be approximately 15 mm.

As shown in FIG. 2, a perforation P1 is formed on the filter 2 along the outer edge of the upper adhesive portion 4, which allows the filter 2 to be cut away above the upper adhesive portion 4 (i.e., the side not surrounded by the upper adhesive portion 4).
At one end of the upper attachment portion 4, a conical support portion 6 is formed which extends parallel to a side L2 (one side of an imaginary rectangle S) formed between a pair of holders 3, 3 which are formed at a constant interval in the flow direction.

The hook portion 5 is a portion that is hooked onto the opening of a container 50 as shown in FIG.
2, the hook portion 5 is formed in a generally V- or U-shape. Specifically, the hook portion 5 has shoulder portions 5a, 5a extending generally horizontally to form an arc shape together with the upper adhesive portion 4 at the center of the upper adhesive portion 4, side portions 5b, 5b extending downward from the shoulder portions 5a, 5a, and a bottom portion 5c connecting the side portions 5b, 5b.

In detail, the shoulders 5a, 5a are formed so as to cut into the upper attachment part 4 within the inner two-quarters of the longitudinal direction of the upper attachment part 4. With this configuration, the inner edge 4b of the upper attachment part 4 and the lower edge 5y of the shoulder 5a are formed on approximately the same arc.

A lower attachment portion 7 is formed on the inner side of the hook portion 5 in a generally W-shape and attached to the filter 2 .
A pair of left and right arms 8, 8 are formed on the inside of the lower attachment portion 7 and are continuous with the shoulder portion 5a at their upper portions.

The arm portion 8 extends upward from near the bottom of the lower attachment portion 7 so as to widen slightly, then extends outward to the left and right and connects to the shoulder portion 5a of the hook portion 5. The arm portion 8 is formed with a predetermined width. A portion of the inner edge of the arm portion 8 is attached to the filter 2, and the remaining portion is not attached to the filter 2. As a result, the arm portion 8 can rise up around the inner edge as an axis.

A part of the lower attachment part 7 also extends inside the arm part 8 and is connected to the upper attachment part 4 near the center on the left and right. The central part 9 of the lower attachment part 7, which extends downward from the center of the upper attachment part 4, is attached and fixed to the filter 2 at least near the upper attachment part 4 and near the lower attachment part 7.

The above-mentioned hook portion 5 and the lower adhesive portion 7 formed therein, the arm portion 8 and the central portion 9 of the lower adhesive portion 7 are within the range of the inner two-quarters of the upper adhesive portion 4 divided into four equal parts in the longitudinal direction, and are formed outside the arc having a radius of half the side L2 centered on the corner K3 of the imaginary rectangle S. As a result, the lower adhesive portion 7 and the central portion 9 are smaller than the hook portion 5 and are compactly formed at the center of the imaginary rectangle S.
As a result of the above, at least one-fourth of both ends of the upper adhesive portion 4 extend and protrude from both sides of the hook portion 5 .

The holder 3 is formed by punching a flexible material, such as paper or synthetic resin, that has a certain degree of rigidity, and forming cuts between the upper adhesive part 4, the hook part 5, the lower adhesive part 7, and the arm part 8. The holder 3 is also fixed to the filter material 2 by heat fusion or the like.

The drip bag forming sheet 1 is formed as described above and can be stored, for example, rolled up.

To make the drip bag 10 shown in Figure 3, the end of the drip bag forming sheet 1 shown in Figure 1 or Figure 2 is pulled out little by little, the sheet 1 is folded at the center line L1 with the holders 3, 3 facing outwards, and the filter material 2 is made into a bag body while sealing the sides L2 to L4 by heat sealing or the like. The holders 3, 3 are arranged symmetrically with respect to the center line L1, so they overlap in the same direction as the stacking of the filter material 2.

At this time, at least the center line L1 and side L2 are closed, and a beverage extraction raw material filling machine seals the filter material 2 except for a portion of sides L3 and L4. When the filter material 2 is formed into a bag shape, beverage extraction raw materials such as coffee beans are placed inside the filter material 2, and the open side L3 or side L4 is sealed.
After that, or at approximately the same time as sides 2, 3, and 4 are heat-sealed, the filter material 2 is cut to obtain the drip bag 10 shown in FIG.

The drip bag 10 has a rectangular filter 2, and the beverage extraction ingredients such as coffee beans can be spread evenly above the upper attachment part 4, so the bag containing the beverage extraction ingredients can be kept flat as a whole.

The drip bag 10 is therefore easy to store beverage extraction ingredients inside, and is also easy to store in a flat shape in an outer bag (not shown) that stores the drip bag 10. This has the effect of making it easy to store the drip bag 10 or the outer bag that stores the drip bag 10 by stacking them flat. It also has the effect of making it easy to store a large amount of coffee beans inside the bag body of the filter 2, and after opening the perforation P1, the unnecessary part above the upper adhesive part 4 can be removed for easy use.

When extracting a beverage using the drip bag 10, the ingredients for extracting the beverage are gathered below the upper adhesive part 4, and the excess part X of the filter 2 above the upper adhesive part 4 is cut off at the perforation P1. Then, the hook parts 5 of the holders 3, 3 are raised away from the filter 2, gripped, and pulled in the direction away from each other.

By pulling the hook portion 5, the arm portion 8 is also pulled and inclined away from the filter 2, and the hook portion 5 is further separated from the filter 2. At this time, since the upper attachment portion 4 and the central portion 9 are attached and fixed to the filter 2, the filter 2 as a whole becomes conical in shape.
Furthermore, since the adhesion of the lower adhesive portion 7 to the filter 2 is kept to a minimum, the conical shape of the filter 2 is not pulled too tightly and forms a beautiful conical shape.

After the hooking portion 5 is opened widely to the left and right, it is placed over an upper opening 51 of a container 50 such as a cup, as shown in Fig. 4, and hooked onto the upper opening 51 of the container 50 so that the hooking portion 5 is disposed on the outside of the container 50 (the beverage extraction ingredients such as coffee beans are omitted in Fig. 4). When the hooking portion 5 is hooked onto the container 50, the arm portion 8 is suspended between the filter 2 and the container 50.
Once the drip bag 10 has been placed in the container as described above, coffee beans are added and hot water is poured to extract the beverage.

In this way, the drip bag 10 of the present invention has the effect of forming a drip bag 10 containing an extraction ingredient that can be neatly formed into a cone shape while firmly holding the opening of the filter 2.

In addition, a cone support portion 6 is formed at the end of the upper attachment portion 4, extending downward along the side L2, which supports the cone shape in the vertical direction when the filter 2 is open, and prevents the filter from tipping inward when hot water is poured.

In the above embodiment, the perforation P1 is formed only in the filter 2 along the outer edge of the upper adhesive part 4, but the perforation may be formed on the imaginary line P2 on the upper adhesive part 4 as shown in FIG. 2 so that it can be torn together with the filter 2. Specifically, when the perforation is formed on the imaginary line P2, it may be formed between the outer edge 4a and the inner edge 4b of the arc shape of the upper adhesive part 4, and parallel to the outer edge 4a or the inner edge 4b.

When the perforations are formed on the upper adhesive part 4, which has a certain degree of rigidity, they can be cut off together with a part of the upper adhesive part 4, which also has rigidity, so that the filter 2 can be cut neatly along the desired line, and it is possible to prevent the filter 2 from being accidentally broken by deviating from the perforations.

Furthermore, as shown in FIG. 5, a pair of holders 3, 3 may be arranged on the filter material 2 so that the two circular arc shapes face each other in the flow direction to form a pair.
2, the conical support portion 6 may be formed on both ends of the upper attachment portion 4 along sides L1 and L2. The conical support portion 6 is preferable but not essential.

Reference Signs List 1: Sheet for forming drip bag 2: Filter material 3: Holder 4: Upper attachment part 5: Hanging part 6: Cone support part 7: Lower attachment part 10: Drip bag 50: Container L1: Center lines L2, L3, L4: Sides S of imaginary rectangle: Imaginary rectangle

Claims (10)

A pair of holders are attached to a band-shaped filter material extending in a flow direction, and are attached to the band-shaped filter material in line symmetry with respect to a center line of the filter material in a width direction, and are generally arc-shaped. A plurality of pairs of holders are provided at regular intervals in the flow direction,
Each of the pair of holders extends in an arc shape between a pair of diagonal corners of an imaginary rectangle having the center line as one side, and includes an upper attachment part fixed to the filter material, and a hook part for hooking onto an opening of a container and a lower attachment part formed inside the hook part and at least a portion of which is fixed to the filter material, on the side surrounded by the arc shape of the upper attachment part.
The upper attachment portion protrudes and extends on both sides of the hanging portion. The sheet for forming a lip bag according to claim 1, wherein a conical support part is formed extending from at least one end of the upper adhesive part toward a corner of the virtual rectangle and fixed to the filter. A pair of holders are attached to a band-shaped filter material extending in a flow direction, and are attached to the band-shaped filter material in line symmetry with respect to a center line of the filter material in a width direction, and are generally arc-shaped. A plurality of pairs of holders are provided at regular intervals in the flow direction,
Each of the pair of holders extends in an arc shape between a pair of diagonal corners of an imaginary rectangle having the center line as one side, and includes an upper attachment part fixed to the filter material, and a hook part for hooking onto an opening of a container and a lower attachment part formed inside the hook part and at least a portion of which is fixed to the filter material, on the side surrounded by the arc shape of the upper attachment part.
The lower adhesive portion is formed within a central two-quarter region obtained by dividing the upper adhesive portion into four equal parts in the direction extending in an arc shape, and is formed outside a virtual arc having a center at a corner on the side surrounded by the upper adhesive portion and a radius of half of one side of the corner. The sheet for forming a lip bag according to claim 3, wherein a conical support part is formed extending from at least one end of the upper adhesive part toward a corner of the virtual rectangle and fixed to the filter. The hook portion has a shoulder portion that is hooked onto an opening of the container during use, and a locking portion that is disposed on a peripheral surface of the container,
5. The sheet for forming a drip bag according to claim 1, wherein the shoulder portion is formed by cutting out a part of the arc shape of the upper adhesive portion so as to constitute a part of the arc shape of the upper adhesive portion. The sheet for forming drip bags according to any one of claims 1 to 4, wherein the filter material has a tear perforation formed along the outer edge of the upper adhesive part, or the upper adhesive part has a tear perforation formed between the inner edge and the outer edge of the upper adhesive part along the inner edge or the outer edge, which allows the upper adhesive part to be torn together with the filter material. The sheet for forming a drip bag according to any one of claims 1 to 4, wherein the filter material has a break line formed between a pair of holders arranged at regular intervals in the flow direction. The drip bag forming sheet according to claim 6 is folded at the center line between a pair of holders, the filter material is cut between the pair of holders formed in the flow direction, and the beverage extraction ingredients are contained between the folded filter material, and the drip bag is sealed at the other three sides of an imaginary rectangle that surrounds each of the pair of holders, with the center line as one side. The drip bag according to claim 8, in which a portion of the filter material is cut off by a tear perforation formed along the outer edge of the upper adhesive part or by a tear perforation formed along the inner edge or the outer edge between the inner edge and the outer edge of the upper adhesive part and capable of tearing off together with the filter material. 9. The drip bag according to claim 8, wherein a sealing portion is formed in a part of the bag-shaped filter material that is folded and has four sides closed, and that contains and closes the beverage extraction ingredient.