JP2006101992A - Coffee filter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a throwaway drip coffee filter, the width of which is converted from the condition that it is folded and stored to the condition that it is mounted on a cup and used and the mounting on a cup during use is stable. <P>SOLUTION: Right and left legs 1 and 2 having leg piece portions 5 and 6 which are folded in two around a vertical folding line 4 so that the back sides are brought into contact with each other, are vertically aligned with each other face to face, a filter to store coffee powder therein is put between the legs, and the opening portion 14 is integrally fastened to the upper back sides of the legs. When the filter is not in use, the filter is pinched by the leg pieces portion 5 and 6 of the legs for protection. To use the filter, the ends of the legs are spread rightward and leftward and fit to the opening of a cup, and engaged and mounted onto the edge of the cup by inside and outside pinching pieces 10 and 11 formed at the leg ends. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a disposable drip coffee coffee filter.

There have already been many proposals for disposable drip coffee filters, and they have been put into practical use and are commercially available.
As a basic form, this disposable coffee filter is placed on the opening of a suitable container (hereinafter referred to as a cup) such as a coffee cup, or hung on the edge of the opening to store coffee powder. The filter is supported, and the coffee extract is directly received in the cup by pouring hot water into the coffee powder inside from the opening of the filter.

  This coffee filter has a simple structure that is easy to handle in combination with making the unit price cheaper because it is disposable. However, since the coffee powder is stored in the filter in advance and handled integrally, the coffee powder is oxidized. There is a need to prevent. For this reason, a coffee filter in which coffee powder is enclosed in a filter is usually stored and handled by being enclosed in a highly airtight laminate bag made of, for example, an aluminum foil laminated or vapor deposited film.

In addition to the above-mentioned storage reasons, the coffee filter in which the coffee powder is preliminarily stored in the filter is individually enclosed in a packaging bag from the standpoint of preparing the product form for sale. In order to reduce the manufacturing unit price, downsizing has been attempted, and many of them are downsized by folding and stored in a packaging bag.
However, in the case of a drip-type filter, the support that supports the filter can be downsized from the standpoint of maintaining strength, such as supporting the filter at a height that does not contact the coffee surface and allowing it to withstand the pouring of hot water. However, there is a limit, and it is difficult to make the packaging form smaller and to select the shape.

The present applicant has made a number of proposals for disposable drip-type coffee filters, which have been continuously implemented to date after the proposal, and have been highly evaluated in the market. It is well known among consumers as a disposable coffee filter and has come to be established. Examples of the filter include a coffee filter enclosed in a package described in Patent Document 1 and Patent Document 2.
Japanese Patent Publication No. 61-3693. The claim section of the first page of the gazette, the embodiment section from the right column of the second page to the right column of the third page, and FIGS. 1, 2, 3, 7, and 8. Japanese Patent Publication No.59-30411. Claims section of the first page of the gazette, page 1 right column 23rd line to page 2 right column 38th line, page 3 left column 32nd line to page 4 left column 3rd line.

According to Patent Document 1, the coffee filter described in both of the above documents is formed by integrally extending support leg pieces 6 and 6 that are paired at both ends of a substrate 4 made of flat cardboard. Inner and outer holding pieces 21 and 22 are formed at the leg ends of the leg pieces, respectively, and on the other hand, the filter paper bag 2 is fastened around the pouring port 10 opened in the board 4 on the back side of the board 4 and suspended. In the case of storing in the packaging body 1, that is, the packaging bag, it is folded in two along the center line 18 passing through the center of the support leg pieces 6, 6 from the substrate 4. The filter paper bag 2 containing the coffee powder 3 is sandwiched between them to form an elongated flat plate so as to be accommodated in the package 1.
And when using, after opening the folded squeezed state and developing it into a flat plate shape, both support leg pieces 6 and 6 are bent into a gate shape in the same direction around the substrate 4, The coffee cup 19 can be extracted into the cup by sandwiching the edge of the coffee cup 19 between the inner and outer clamping pieces 21 and 22 provided at the leg end, placing the cup on the cup, and then pouring hot water through the pouring port 10.

  Although the coffee filter described in this document has a simple structure, it uses a drip-type extraction method that drops and extracts coffee liquid by pouring hot water into coffee powder regardless of the structure. Regular coffee can be obtained, and there is a feature that coffee that is not inferior to coffee by a normal drip filter can be obtained.

However, the problem with the above coffee filter is that when a further downsizing is sought, the folded filter is folded into an elongated shape when stored in a packaging bag. Therefore, this length cannot be reduced because it is necessary to secure a certain height in the leg, and the length of the package must be elongated.
In use, the substrate 4 and the support leg pieces 6 and 6 bent in two are once opened flatly and developed into a plate shape, and then the left and right support leg pieces 6 and 6 are centered on the board 4. It is troublesome to lock the gripping pieces 21 and 22 inside and outside the ends of both legs in the state of being sandwiched between the edges of the cup 19 in the state of being bent in the same direction and in the inverted U shape (gate shape).

The former problem is one obstacle to downsizing, but if anything, it is due to the peculiarity of the form, and this is impossible when you want to make a square form with the top and bottom and left and right aligned. By doing so, it becomes one restriction in commercialization.
However, the latter problem is a problem based on unfamiliarity when it is used for the first time, but it is a problem that prevents simple use and requires improvement.
In particular, the work of attaching the holding pieces 21 and 22 to the cup in a state in which the left and right support leg pieces 6 and 6 that are flattened are folded into an inverted U-shape, and the cups are attached to the cup in this state is somewhat complicated. Is a problem that requires dexterity.

The present invention has been researched and developed to improve the disadvantages of the above-mentioned disposable drip coffee filter, and can be folded without reducing the capacity of the filter for storing coffee powder. The object is to further reduce the shape of the vessel.
In addition, it can be stored in a square packaging bag with the most convenient vertical and horizontal lengths for handling, and further, the usage procedure can be reduced by reducing the change in form from the folded state to the used state. It is an object of the present invention to provide a drip-type coffee filter which is simplified, facilitates handling, improves the attachment to the cup, and provides a stable attachment.

In particular, the type of filter that supports the filter that holds the coffee powder high, that is, the drip type filter that hangs the length of the support leg piece, is placed on the cup in a standing position. In order to reduce the size of the filter, it is impossible to set the capacity of the filter to be supported in a shape, that is, the size of the bag required to contain an appropriate amount of coffee powder to be enclosed (smaller than the limit). One of the obstacles.
The present invention is to improve the leg that supports the filter, to make it compact in a folded state, to facilitate assembly and mounting work in use, and to handle it easily.

In order to achieve the above-mentioned object, the present invention has a pair of legs facing from the left and right with respect to a bag-shaped filter that encloses coffee powder inside, and the filter is housed between the legs in a state where the legs are opposed to each other. The two legs are folded in two along the vertical fold line, and the entire filter is folded flat so that the left and right halves of the filter are sandwiched, and this can be sealed in a flat packaging bag. It was.
In use, both legs folded in two along the vertical fold line are expanded, and the leg ends of the legs are opened to the left and right to match the caliber of the cup. It is attached to the edge of the opening of the cup through a locking means provided at the end, and is placed and fixed in a standing state on the cup, thereby passing through the inlet of hot water that opens between the upper ends of both legs. The coffee liquid can be extracted by pouring hot water into the opening of the filter facing the section.

  The coffee filter of the present invention will be described in more detail. The coffee filter according to the present invention has two leg pieces that are folded back along the vertical fold line so that the back surface of the coffee filter is folded. Coffee filtration comprising a pair of left and right legs provided with locking means for locking to the edge of the opening, and a bag-like filter supported by the left and right legs containing an appropriate amount of coffee powder inside. The left and right legs are opposed to each other so that the side edges of the two leg pieces are opposed to each other, while the filter has the opening facing upward. Placed between the left and right legs, the peripheral edge of the opening is attached to the upper back part of the leg piece part of both legs, and is fixed integrally, and is supported in a suspended form, and the left and right half parts of the filter Each of which can be encased by the two leg pieces of each leg, The opening of the filter openable closed to lies in the characterized by being obtained by encapsulating the coffee powder.

  The left and right legs are formed of a sheet-like material such as cardboard or plastic sheet having a required rigidity. Then, each of the two leg pieces is formed by dividing a rectangular flat plate having a length corresponding to the size of the filter to be supported into one side and providing a vertical fold line at the center thereof. Is formed.

  When the two leg pieces are not in use, the two leg pieces are folded so that the backs of the two sides are in contact with each other along the vertical fold line, and a filter that encloses the coffee powder is sandwiched between the two leg pieces. It can be inserted into and stored in the packaging bag formed in a state, and the pinching can protect against an external impact on the filter.

  Since each of the left and right legs is sandwiched facing the filter from the left and right, each leg piece may be sandwiched so long as it covers one half of the filter. In other words, it is sufficient that each leg piece has a width that is approximately one half of the width in the horizontal direction of the filter when the width of the leg piece is folded, and the entire filter is covered by both legs. Will be able to. Of course, the width of the leg piece portion may be slightly wider or narrower. If it is wide, the side edges of the left and right legs overlap with each other. Yes, it is not affected in terms of protection.

On the other hand, the filter has a volume of coffee powder that can obtain a coffee liquid with a predetermined concentration after one use (usually about 8 g for one person) and a volume for storing hot water poured into the coffee powder. It is required to have a bag shape.
This filter is placed between the left and right legs by attaching the upper part of the filter to the upper rear part of the leg facing the left and right with the opening facing upward, It will be supported in the state hung from both legs with the fastening part.

As described above, a predetermined amount of coffee powder is stored in the filter, but the opening is closed so as to be opened until it is used, and the stored coffee powder is prevented from spilling out. .
Heat sealing is appropriate for closing the opening. The opening is closed in a line and closed by heat sealing. When opening, the sealing part is pushed in with a fingertip, and it is easily opened by breaking the adhesive state. Will be able to open.

On the other hand, the locking means formed on the leg body is formed by projecting a tongue-shaped piece to be hooked on the edge of the opening of the cup at the leg end portion. The locking means can also be formed by providing inner and outer clamping pieces that sandwich the opening edge of the cup from the inside and outside at the leg end portion.
Any of these locking means can be provided by cutting out as a part of the leg when forming the leg, and is integrally formed as part of the leg end portion of the leg. Become.

By the way, the two legs are basically independent, and support the bag-like filter by jointing both as described above. , The upper end portions are connected to each other so as to be integrated and support the filter.
This connection between the legs is effective in manufacturing and obtaining stability during use, and is the best mode for carrying out the present invention.

The left and right legs can be easily connected to each other by forming connection pieces between the legs when the legs are cut out from a sheet-like material such as cardboard.
In this case, the connecting piece can be formed by passing two connecting pieces so as to be parallel to each other at the upper ends of the legs cut out in a rectangular plate shape. Further, by passing these two connection pieces, a space surrounded by the upper ends of both legs can be provided, and an inlet for pouring hot water into the filter can be provided here. .

Needless to say, the connecting piece is not required to be integrally formed at the time of forming the leg, but by passing a band-like piece formed separately, or a connecting piece made of a material different from that of the leg is passed. In this way, the legs are connected to each other, and the present invention can be implemented without any problem by these methods.
In addition to connecting the connecting pieces to each other, the connecting piece is connected to a part of the opening of the filter that fits between the two legs, that is, the opening that extends between the upper ends of the left and right legs. When fastened to the piece, the coupling between the leg and the filter is strengthened, and a stable filter can be obtained.

  And, with the connection piece and the opening of the filter being fixed, the formed inlet and the opening of the filter are integrated, so that the hot water poured into the inlet is the one. It will be poured into the coffee powder sealed in the inside through the opening of the bean filter, and it will be possible to effectively prevent hot water from spilling out.

The filter of the present invention constructed in this way has two leg pieces that are folded by folding the left and right legs, which are opposed to each other with a bag-shaped filter, along the vertical folding line. The filter is folded flat by being overlapped with each other, and the entire half of the filter is folded flat by sandwiching each half of the filter between the leg pieces.
As a result, the filter of the present invention can be inserted and packaged in a flatly formed packaging body, and the folded left and right legs are rubbed with their side edges joined together. As a result, the overall shape becomes a square shape or a shape close to this, and it is possible to store the same shape in the most common and easy-to-handle packaging form.

In particular, in the present invention, it is possible to align the length of the left and right legs enclosing the filter from the upper end to the leg end, that is, the height of the entire leg is equal to the height of the filter. Since there is no need to do this, it can be made the smallest size when folded.
In other words, when using the filter, when the leg is placed upright on the cup, the position of the bottom of the filter supported in a suspended manner on this leg is the same as the position of the leg end of the leg. If so, the filter does not come into contact with the liquid level of the coffee liquid accumulated in the cup. Therefore, the height of the leg can be made equal to the height of the filter, so that the entire filter can be reduced in size.

The above relationship is clear when compared with the coffee filter described in Patent Documents 1 and 2 described above.
That is, in the filter in the patent document, when the substrate 4 and the supporting leg pieces 6 and 6 are folded in the center, and the filter is sandwiched between them, the substrate and the supporting leg pieces are folded in two. The length of the filter wraps around the filter. At this time, the leg ends of both supporting leg pieces project beyond the size and range of the sandwiched filter. This hinders downsizing of the vessel.
On the other hand, even if the filter of the present invention has the same size as the support leg piece of the filter shown in the above-mentioned patent document with respect to the leg, the filter to be sandwiched is sandwiched in the form of being divided separately from the left and right. Since the size of the filter coincides with the size of the filter, both leg ends do not protrude beyond the size of the filter in the folded state. For this reason, the portion corresponding to the protruding portion can be substantially reduced in size, and the package can be reduced in size.

In addition, when the filter of the present invention is changed from the folded state to the use state because it is placed on the cup, the leg piece part sandwiching the filter is opened, and the leg ends of the left and right leg bodies are opened as it is. If it is opened in accordance with the caliber, it is converted into a use state, and the assembly can be completed by an extremely simple operation.
In particular, in the transformation of this form, the legs do not change greatly during the transition from the folded state to the used state, and the left and right legs in the folded state are in a state of facing each other and are supported. Because it is close to the posture, anyone can easily change the shape to use.

  In addition, when the filter of the present invention is placed on the cup and attached, the left and right legs stand up in a state where the two leg pieces are bent slightly along the central vertical folding line. Therefore, rigidity is maintained and a stable mounting state can be maintained. In addition, if the inner holding piece of the locking means is provided on the folding line, the holding piece also bends in a cross-sectional shape with a vertical line, so that the rigidity is increased and the edge of the cup is increased. The locking force is strengthened, and stable mounting can be obtained.

Furthermore, the bent state of the leg piece portion with respect to the vertical fold line of both legs at the time of the above attachment extends to the opening portion of the upper end portion, and since the hot water inlet portion is opened to the outside at this upper end portion, it is wide. It will open and facilitate the pouring of hot water.
Furthermore, when the upper ends of both legs are connected by a strip-shaped connecting piece, the connecting piece is inclined inward with the opening (open leg) of both legs, and the edge protrudes upward accordingly. Since it opens so as to protrude outward, the inlet portion is substantially widened, and as a result, pouring of hot water is further facilitated.

As described above, according to the filter of the present invention, there is a large change in shape between the figure that is folded and stored in the packaging bag and the figure that is placed on the cup and used for extracting the coffee liquid. Since they have almost the same form, there is an advantage that anyone can easily handle them without mistakes in operation.
In addition, the left and right legs can be reduced in size according to the size of the filter that encloses an appropriate amount of coffee powder in advance, in particular the width and length, and the shape is close to a square shape. Since it can be made into a shape, it can be a general form that is most easily handled as a packaging form for storing a large number of pieces, and is also advantageous as a form for displaying products.

In addition, the filter according to the present invention is such that the leg in use stands up independently on the left and right sides, and stabilizes in a posture facing each other with the filter in between. It is difficult to come off, and there is an advantage that it is possible to effectively avoid the danger of falling down from the cup due to hot water pressure when pouring hot water.
Next, the present invention will be described in detail based on the embodiments shown in the drawings, and other features will be described together.

  FIG. 1 of the accompanying drawings is a front view of the drip coffee filter according to the present invention in a folded state, FIG. 2 is also a right side view, FIG. 3 is also a plan view, and FIG. FIG. 5 to 7 show a use state in which the coffee filter of the present invention is placed and fixed on a coffee cup. FIG. 5 is a front view, FIG. 6 is a side view, and FIG. 7 is a plan view. Is shown.

In the drawings, reference numerals 1 and 2 denote left and right legs, and 3 denotes a filter formed in a bag shape supported by the legs.
The left and right legs 1 and 2 are formed in the same shape here, and each is cut and formed into a rectangle close to a square using a thick paper piece.
The legs 1, 2 are each provided with a vertical fold line 4 at the center, and the fold line 4 is divided into two leg pieces 5, 5, 6 and 6 with the fold line 4 as a boundary. The leg piece portion is folded in half so that the back surfaces are in contact with each other, and the lower end portions, that is, the leg end portions 7, 7 are engaged with the opening edge 8 a of the cup 8. Locking means 9, 9 are provided.

The locking means 9 shown here is composed of two inner and outer clamping pieces 10 and 11 for stably locking the edge 8a of the cup 8 from inside and outside. It is formed by making horizontally long cuts 12, 12.
The notch 12 is formed in a U-shape that is widened as shown in the figure, and a tongue-shaped inner sandwiching piece 10 is provided at the center of the notch 12, and the outer sandwiching piece 11 is surrounded by the sandwiching piece 10. As will be described later, the inner holding piece 10 is inserted into the inside of the cup edge 8a, and the outer holding piece 11 is attached to the outside of the edge 8a so that the edge 8a is inserted from the inside to the outside. I can do it.

The inner clamping piece 10 provided at the center of the leg end 7 passes through the vertical fold line 4 in the center, and is bent so that the cross-sectional shape is a dogleg shape around the line 4 when mounted, Rigidity is imparted.
The notch 12 that cuts and raises the inner sandwiching piece 10 aligns the upper edge portions 12a and 12a sandwiching the sandwiching piece 10 on a horizontal line, and is formed in a slightly laterally long shape when mounted on the cup 8, The edge 8a is brought into contact with the upper edge portions 12a and 12a so as to be locked in a stable state.
The outer sandwiching piece 11 surrounds the inner sandwiching piece 10 and is formed over the entire width of the leg end, thereby increasing the locking force for the cup 8. In addition, about this outer side clamping piece 11, it separates a center part into two right and left clamping pieces, and, thereby, it may form in three pieces together with the center inner side clamping piece 10, These are arbitrarily selected in implementation. Can do.

On the other hand, the filter 3 is made of a paper filter that stores powdered coffee and can be filtered by pouring hot water to extract the coffee liquid.
As will be described later, the filter 3 is formed in a bag shape in which one filter paper is folded into two front and rear parts so that the filter 3 can be folded flatly, its both edge portions 13 and 13 are joined, and the upper part is opened. Formed, the peripheral edge 15 of the opening 14 is fastened to the back of each upper end of the left and right legs 1, 2 and assembled so as to fit between the left and right legs 1, 2; It is designed to be balanced and supported by both legs.

8 to 12 show the legs 1, 2 and the filter 3 in order to clarify the relationship between the legs 1, 2 and the filter 3, and show the structure of the legs, the structure of the filter, and the positional relationship between them. is there. The pair of left and right legs 1 and 2 shown here are cut out from one horizontally long cardboard and are integrally connected.
As shown in FIGS. 10 to 12, the left and right legs 1, 2 have connection pieces 16, 16 arranged so as to connect the upper ends 17, 17 of both bodies, and are connected so that the upper ends face each other. is there. A rectangular hollow portion is provided between the left and right legs 1 and 2 by the two connecting pieces 16 and 16 extending in parallel on the front and rear sides and the upper ends 17 and 17 of the legs. Is formed.

  The front and rear connecting pieces 16 and 16 connect the left and right legs 1 and 2 together. However, as shown here, when the cut pieces are formed from a single cardboard, as described above, When the left and right legs 1 and 2 are folded around the fold lines 4 and 4 so that the fold lines protrude outward, and the legs 1 and 2 are faced to face each other, That is, when the legs are folded as shown in FIGS. 1 to 3 or when the legs are facing each other in use as shown in FIGS. 5 to 7, the leg pieces 5, 5, 6 and 6 are respectively Since the side edges are aligned with each other and the surfaces are aligned with each other, the connection pieces 16 and 16 are also connected to the surfaces of the leg piece portions 5, 5, 6 and 6 accordingly. It is required to align them so that they have the same orientation.

  That is, when cutting out from a piece of cardboard, the leg pieces 5, 5, 6 and 6 and the connecting pieces 16, 16 are aligned on the same surface. When the leg piece portions 5, 5 and 6, 6 are folded in half, the folding direction of the connecting pieces 16, 16 changes by approximately 90 degrees, so that it cannot be folded in two.

Therefore, in the present invention, when the connecting pieces 16 and 16 are cut out from one cardboard together with the left and right legs 1 and 2, or a strip-like connecting piece formed separately is provided between the upper ends 17 and 17 of the legs. In order to smoothly switch the surface when connecting and connecting together, the folding lines 19 and 19 having an angle of 45 degrees with respect to the length direction on the left and right are formed in a V shape on the connection pieces 16 and 16. We are going to distribute.
These two fold lines 19, 19 are arranged so as to narrow toward the outside as shown in the figure, and conversely toward the inside, that is, narrow toward the inlet 18 that opens. You may arrange.

If the two fold lines 19, 19 are arranged so as to be narrowed inward, the inner edges 16a, 16a of the connection pieces 16, 16 are pushed upward and the injection port portion 18 is moved. Since it is narrowed, it is desirable to arrange it so that the outside is narrow and the inside is wide, that is, with the angle of the example shown in the figure.
In this way, when the left and right legs 1, 2 are aligned to face each other, the inner edges 16a, 16a are at the bottom. , 16 has a downward slope toward the inside, which substantially expands the opening width of the injection port 18 (see FIGS. 6 and 7).

  The two folding lines 19, 19 may be formed in a V shape by matching the end portions on the approaching side, but the end portions on the approaching side are separated as shown in the figure. When the connection pieces 16 and 16 are bent in a trapezoidal shape by the two fold lines 19 and 19 when viewed from the inlet 18 side, the surface inclined inward becomes wider. It will be advantageous in widening. At the same time, since the outer edge does not protrude sharply when the connecting piece stands up, it is safe in handling and it is advantageous to downsize the packaging bag.

In the figure, reference numeral 20 denotes a notch provided to reduce the protruding height when bent along the edge fold lines 19, 19 on the outside of the connection piece 16.
The connecting piece 16 can be easily bent by narrowing and narrowing the width as a whole, or by forming it long. The width and length should be selected according to the above.

On the other hand, as described above, the filter 3 is formed by folding a sheet of filter paper in half and bonding the edges 13 and 13 to form a flat bag, and two fastening pieces 21 and 21 extending upward are formed. They are assembled by being opened to the outside and pasted on the back of the legs 1 and 2.
FIG. 12 shows a state before the filter 3 is attached. An appropriate amount (about 8 g) of coffee powder is sealed inside the bag, and the mouth portion 22 of the bag is heat-sealed so that it can be opened. It is closed in a line.

  The filter 3 will be described in more detail. A filter which is folded in two and bonded to the edges 13 and 13 into a flat bag will enclose an appropriate amount of coffee powder in the bag portion. Two fastening pieces 21, 21 extending from the upper end of the alignment are opened to the outside, and this is used as an attachment piece, and an adhesive portion 15 a is provided on the peripheral portion 15 of the two pieces, and this adhesive portion 15 a Is attached in contact with the back of the legs 1 and 2.

The adhesive portion 15a is narrowed at a portion corresponding to the connecting pieces 16, 16 in accordance with the width of the piece, and is fixed in a triangular shape at portions corresponding to the leg piece portions 5, 5, 6, 6 of the leg. The entire surface of the pieces 21 and 21 is not attached to the back surfaces of the legs 1 and 2 so that the inner boundary of the adhesive portion 15 a becomes the substantial opening 14 of the filter 3.
10 and 11 show the assembled state in which the fastening pieces 21 and 21 of the filter 3 are attached to the rear surfaces of the developed left and right legs 1 and 2 and the adhesive portion 15a is joined. The opening 14 of the filter 3 has its edge close to the edge of the inlet 18 at the connection pieces 16 and 16, and is separated from the edge of the inlet 18 at the back of the legs 1 and 2. The aperture is larger than the aperture 18.

  The coffee filter according to the present invention is configured as described above. When the left and right legs 1 and 2 are integrally cut out from a single cardboard via the connecting pieces 16 and 16, the legs are used. The filter body 3 is attached to the back surface of the body 1 and 2 in an expanded state, joined together through an adhesive portion 15a, and then assembled together. Will be filled with coffee powder.

Next, after doing so, the filter 3 is flattened from the front and back, and the front and back surfaces facing each other at the bases of the fastening pieces 21 and 21 are heat-sealed so that the mouth portion 22 of the bag portion can be opened in a single line. Close together.
Next, the fold lines 19 and 19 formed on the connection pieces 16 and 16 are bent in two, with the left and right legs 1 and 2 facing each other in a rising state, and each leg 1 2 is bent around the folding line 4 and the leg pieces 5, 5 and 6, 6 are each folded in two, the bag part of the flattened filter 3 is sandwiched by the left and right halves, and this is covered and folded. To complete.

FIGS. 1 to 4 show the folded state, and the filter is then stored in a flat packaging bag that can be stored in the folded state, sealed and stored, or Will be transported and displayed as merchandise.
Although not shown in the drawings, the packaging bag is formed as a rectangular flat bag close to a substantially square according to the size of the folded filter as described above.

  In use, the folded filter is first removed from the packaging bag to be airtightly packed, and then the left and right legs 1 and 2 aligned to face each other around the connecting pieces 16 and 16. The leg end is opened in accordance with the diameter of the cup 8, and then the mouth 22 of the filter 3 is pushed open to be opened. After that, the inner holding pieces 10 at the lower ends of both legs are pushed into the back surface side, the holding pieces are inserted into the inside of the edge of the cup 8, and the outer holding pieces 11 are attached to the outside of the edge to be held from inside and outside. Will be attached to the cup 8.

  5 to 7 show the attached state of the filter. The left and right legs 1 and 2 are attached to the cup 8 in a stable state because the inner and outer sandwiching pieces 10 and 11 are engaged with the edge 8a and locked firmly. In particular, this filter exhibits rigidity because the legs 1 and 2 are bent at the fold line 4 and the two leg pieces 5, 5 and 6, 6 are bent into a U-shaped cross-section. It will give a strong support. Then, as shown in FIG. 7, since the injection port portion 18 is opened to the left and right as it is bent into this square shape, the opening width is widened, and hot water injection is facilitated.

  In addition, the connection pieces 16, 16 that connect the legs together with the attachment are inclined from the standing state to the horizontal state with the opening of the leg pieces 5, 5, 6, 6 of the leg, Since it is inclined inward toward the portion 18, the inlet portion 18 is further widened, making it easier to pour hot water and effectively avoiding the danger of spilling out of hot water.

After the filter 8 is stably mounted and fixed on the cup 8 as described above, hot water may be poured into the opening 18 that opens, and the hot water that is in contact with the coffee powder in the filter 3 is coffee. The components are extracted and passed through the filter as coffee liquid and stored in the cup.
Then, after extracting a predetermined amount of coffee liquid, the filter is removed from the cup, discarded as it is, and used.

Of course, the above explanation is based on the assumption that the coffee liquid for one person is extracted. However, if the capacity of the filter is made large and the amount of coffee powder filled is appropriate for the number of people, it is for two persons. It can be for human use. These are appropriately selected by the designer.
Moreover, although it is set as the coffee filter here, it cannot be overemphasized that this invention can be utilized also as a filter which extracts a component by pouring hot water out of a coffee liquid, for example, for example.

The front view in the state where the coffee filter concerning the present invention folded up. The right view in the state which folded the coffee filter. The top view in the folded state of the filter of coffee. The bottom view in the folded state of the filter of coffee. The front view explaining a use condition. The right view explaining a use condition. The top view explaining a use condition. The front view of the state which expand | deployed the filter. The right view of the state which expand | deployed the filter. The top view of the state which expand | deployed the filter. The bottom view of the state which developed the filter. It is a disassembled perspective view of the state which developed the filter.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Leg body 3 Filter 4 Bending line arrange | positioned vertically at the center of a leg body 5,6 Leg piece part which comprises a leg body 7 Lower end part of leg body which is leg end part 8 Cup 9 Locking means 10 Inner side Clamping piece 11 Outer clamping piece 14 Filter opening 15a Adhesive part of filter 16 Connection piece connecting left and right legs 17 Upper end part 18 Leg inlet part 19 Folding line for folding connection piece 21 Fastening piece 22 Filter Mouth blocked

Claims (8)

Left and right pair having two leg pieces that are folded back along the vertical fold line in a tangential manner and having locking means for locking to the opening edge of the cup at the lower end. And a filter in the form of a bag that contains an appropriate amount of coffee powder and is supported on the cup by the left and right legs,
The left and right legs are opposed to face each other so that the side edges of the two leg pieces are in contact with each other, while the filter is open between the left and right legs. And the peripheral edge of the opening is attached to the upper back surface of the leg piece portion of both legs so as to be integrally attached and supported in a suspended manner, whereby the left and right half halves of the filter are respectively attached to each leg. A coffee filter characterized by being able to be sandwiched and wrapped by the two leg pieces of the body, the opening of the filter being closed openably, and the coffee powder being enclosed. 2. The pair of left and right legs according to claim 1, wherein a pair of parallel connecting pieces are passed between the opposing upper ends of the two leg pieces constituting each leg, and the legs are connected to each other. A coffee filter, wherein the parallel connection pieces and the upper ends of both legs form a hot water inlet port communicating with the filter opening. 3. The connection piece passed between the upper ends of the two leg pieces of the left and right legs according to claim 2 is attached to the peripheral edge of the opening of the filter accommodated between the left and right legs. A coffee filter characterized by being attached to the coffee. 4. The coffee filter according to claim 2, wherein the connecting piece between the left and right legs is integrally formed of the same material as both legs. 5. The connection piece according to claim 2, 3 or 4, wherein the connecting piece for connecting the left and right legs is a belt-like piece having a required width, and is passed in a state where the width direction of the connecting piece stands up and down. Coffee filter characterized by. 6. The coffee filter according to claim 5, wherein a peripheral portion of the opening of the filter housed between the left and right legs is attached to the back surface portion facing outwardly of the connection piece, and the connection piece is integrally attached. 2. The filter according to claim 1, wherein the filter is formed by folding the sheet-like filter material in two to form front and rear pieces, and joining the left and right edges of the front and rear pieces along the edges to form a flat bag. In addition, the fastening pieces extending from the upper edge portions of the front and rear pieces are attached to the rear surfaces of the upper ends of the leg pieces of the left and right legs, and the peripheral portions of the fastening pieces are joined to the left and right sides. A coffee filter characterized by being attached to the legs. 2. The coffee filter according to claim 1, wherein the engaging means formed at the lower ends of the left and right legs are formed of inner and outer holding pieces that sandwich the opening edge of the cup from inside and outside. .

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