JP6528230B2 - Filter body for filtration and method of manufacturing the same - Google Patents

Description

  The present invention relates to a filter body for filtration used for extracting a liquid by pouring a liquid such as hot water into a solid such as coffee powder and a method for producing the same.

  There are two major types of coffee. Coffee obtained by roasting coffee beans and grinding it into a predetermined powder is dripped and extracted by various methods, and so-called instant coffee in which a coffee extract is artificially powdered. Instant coffee, although it is being improved, gives priority to its ease and simplicity, so it can not be overstated as a taste.

  For this reason, it is often performed by dripping the coffee grounds ground after roasting by various means to put coffee. Such so-called regular coffee is often more delicious than instant coffee, as it generally enjoys the original taste of coffee, except that it depends on factors such as beans, roasting, grinding, and pouring. . Examples of dripping methods include siphon, paper filter, and nel drip.

  Extraction by methods such as siphon type, paper filter type, neld lip type, after setting the container and equipment, it is necessary to grind the coffee beans or put the ground coffee beans powder into these containers . On top of that, it is necessary to pour hot water so as to hit the powder of coffee beans. These procedures are very time-consuming, and are time-consuming to prepare and move or transport paper filters, containers, and equipment that are disposable.

  Coffee is often used as a gift. However, if the recipient does not have coffee beans or containers or devices for extracting coffee (siphons, filters, flannels, etc.), it may be a nuisance gift. In order to reliably prevent this inconvenience, when coffee is selected as a gift, only the above-mentioned instant coffee can be selected.

  As described above, there are various situations in which coffee is enjoyed, including gifts, and regular coffee which is sufficiently delicious and easy to transport and store is required without requiring a special container or device for extraction. In such a demand, a coffee extraction bag is proposed which has a mechanism in which coffee beans previously ground in a filter paper are sealed and attached to a drinking container such as a coffee cup.

  In many of these coffee extraction bags, the upper part of the filter enclosing the coffee powder is opened to expose the coffee powder, and the hot water is poured into the coffee powder for extraction. is there. At this time, members such as blades and claws are provided in the filter, and these are often hooked on the edge of the drinking container to fix the filter.

Patent No. 4105185 JP 2004-24763 A

  When the hot water is poured to extract the coffee liquid while hooking the feathers or claws of the coffee extraction bag on the edge of the drinking container, the coffee extraction bag may be deformed by the amount of movement and weight of the hot water. It can tilt or fall to the bottom of the drinking container. If the shape of the filter body for filtration used when extracting liquid by pouring liquid such as boiling water into solids such as coffee powder is unstable, coffee powder etc. may be scattered or enter the inside of the extract. there is a possibility.

  Then, this invention aims at improving shape stability in the filter body for filtration used when extracting liquid by pouring liquids, such as a boiling water, on solid substances, such as coffee powder.

In order to achieve the above-mentioned object, the present invention comprises, in a filter body for filtration, a membrane-like first filter material and a membrane-like second filter material at least a part of which overlaps the first filter material. A filter portion in which the first filter material and the second filter material are sealed along a closed sealing line, and the first filter material in a sealing region surrounded by the sealing line; The respective outer surfaces of the second filter material are joined at the injection side joint portion and the discharge side joint portion on the opposite side of the injection side joint portion with respect to the reference line segment passing through two points on the sealing line, the filter unit from the injection side joining portion extending toward the reference line segment and the separation can grip portion, said from the Note entry side joint on both sides of the gripping portion extending toward the reference line segment filter a post possible pairs apart from the parts, the from the strut pairs A delivery side main columns possible separation from said filter portion extends to the junction, and a pair of shoulders possible separation from said filter section respectively extending from opposite sides of the main post, the criteria from each of said shoulders A pair of arm portions that extend toward the line segment and can be separated from the filter portion, and a pair of support portions formed of flexible plate-like members.

Further, according to the present invention, in the method for producing a filter body for filtration, a folding step of folding a band-like filter material with a folding line substantially parallel to the extending direction, and the folding line after the folding step. Sealing the filter material with a first sealing line substantially parallel to the first sealing line, and after the folding step, sealing along the first cutting line across the folding line and the sealing line. And a second cutting line which is separated from the first cutting line in the direction of extension of the filter material after the first cutting step of cutting and cutting and the folding step and which intersects the folding line and the sealing line. A second cutting process for sealing and cutting, and the filter in a sealing area surrounded by a sealing line formed of the folding line, the sealing line, the first cutting line, and the second cutting line Reference point passing through the injection joint and two points on the seal line on each outer surface of the material The bonding between the discharge side joint portion on the side opposite the injection side joining portion with respect to the minute, and the filter unit can separated from the grip portion extends toward the reference line from the injection side joint portion, wherein a post possible pairs spaced apart from said filter portion from the Note entry side joint on both sides of the grip portion extends toward the reference line, and the extending from strut pair to said discharge side joint portion and the filter portion and main columns possible separation, wherein a pair of shoulders that can be spaced apart from said filter unit extending at both sides from the main strut, and the filter portion from each extend toward the reference line of the shoulder portion And a supporting portion forming step of forming a pair of separable arm portions with a flexible plate-like member.

  ADVANTAGE OF THE INVENTION According to this invention, the shape stability of the filter body for filtration used when extracting a liquid by pouring liquids, such as a boiling water, on solid substances, such as coffee powder, improves.

It is a top view of one embodiment of a filter body for filtration concerning the present invention. It is a perspective view in the use condition of one embodiment of the filter body for filtration concerning the present invention. It is a perspective view which shows the use condition of one Embodiment of the filter body for filtration which concerns on this invention with a cup and a coffee bean. It is a top view in one modification of one embodiment of the filter body for filtration concerning the present invention. It is a perspective view which shows typically the manufacturing method of one Embodiment of the filter body for filtration which concerns on this invention.

One embodiment of a filter body for filtration according to the present invention will be described with reference to the drawings. Note that this embodiment is merely an example, and the present invention is not limited to this. The same or similar configurations will be denoted by the same reference symbols, and overlapping descriptions will be omitted.

FIG. 1 is a plan view of the filter body for filtration of the present embodiment. FIG. 2 is a perspective view of the filtration filter body of the present embodiment in use. FIG. 3 is a perspective view showing the usage state of the filter body for filtration of the present embodiment together with a cup and coffee beans.

  The filter body 10 for filtration of the present embodiment is used, for example, when extracting a liquid by pouring a liquid such as hot water into a solid such as coffee powder. The filter body for filtration 10 has a filter portion 20 and a support portion 50.

  The filter unit 20 has, for example, a shape in which one rectangular film non-woven fabric is folded at a folding line 21 passing through the middle point of the long side. The sides 22, 23, 24 overlapping when folded at the folding line 21 of the filter portion 20 are joined. That is, the filter unit 20 is sealed by a closed sealing line formed of the folding line 21, the side 23, the side 22, and the side 24 to form a closed bag. One side of the filter unit 20 is referred to as a first filter material, and the other side is referred to as a second filter material, with the folding line 21 as a boundary. Here, the filter unit 20 is made of non-woven fabric, but may be selected appropriately according to the type of liquid to be extracted.

  The support portions 50 are respectively joined to both surfaces of the planar filter portion 20. In FIG. 1, the joint between the support 50 and the filter 20 is indicated by hatching for the sake of explanation. Further, for the sake of explanation, a line segment connecting one end point 56 of the folding line 21 and a point 55 located diagonally to the end point 56 will be referred to as a reference line segment 57. A point 55 located diagonally to the end point 56 is an intersection point of the opposite side 22 of the folding line 21 and the side 23 contacting the end point of the folding line 21 different from the point 56.

  The joint portion between the support portion 50 and the filter portion 20 includes the injection side joint portion 52 and the discharge side joint portion 54. The discharge side joint portion 54 is located on the opposite side of the reference line segment 57 with respect to the injection side joint portion 52. The discharge side joint portion 54 is located, for example, in the vicinity of the intersection of the side 22 and the side 24. The discharge side joint portion 54 and the injection side joint portion 52 are located, for example, at the central portion in the direction in which the reference line segment 57 of the filter unit 20 extends.

  The support portion 50 includes a grip portion 60, a pair of columns 70, a main column 80, a shoulder 72, and an arm 73. The grip portion 60 extends from the injection side joint portion 52 toward the reference line segment 57. The pair of columns 70 extends from the injection-side joint 52 toward the reference line segment 57 on both sides in the direction in which the reference line segment 57 of the grip 60 extends. The respective ends of the pair of struts 70 opposite to the injection joint 52 are connected to each other. The main column 80 extends from the end of the pair of columns 70 opposite to the inlet joint 52 to the outlet joint 54.

  The shoulders 72 respectively extend from the joint of the pair of columns 70 and the main column 80 on both sides in the direction in which the reference line segment 57 extends. Arms 73 respectively extend from the opposite end of the joint between the shoulder 72 and the support 70 and the main support 80. The end of the arm 73 opposite to the shoulder 72 is connected by a connecting arm 74.

  The support portion 50 is formed of a flexible plate-like member. The support portion 50 is formed of, for example, a square cardboard, and the portions such as the injection side joint portion 52, the discharge side joint portion 53, the grip portion 60, the column pair 70, the main column 80, the shoulder portion 72, and the arm portion 73 are , It is formed by the slit (slit) formed in this thick paper. In the region outside the shoulder portion 72 and the arm portion 73, a sticking portion 53 connected from the injection side joint portion 52 is formed.

  The filter body 10 for filtration is used by being placed on the edge 92 of the cup 90 in which, for example, a circular opening is formed. Each of the grips 60 of the support 50 joined to both sides of the filter 20 is gripped with, for example, a thumb and a forefinger and is spread in the normal direction of the filter 20 to form the grip 60 of the sealing lines. At the near sides 22, 24, the first filter material and the second filter material on both sides are torn apart to form an opening. Also, at this time, a little finger or the like is hooked on the end of the coupling arm 74 and the coupling arm 74 is pulled away from the filter portion 20 so as to be separated. The filter body 10 for filtration is inserted in the opening of the cup 90 as it is. Thereby, the filter body 10 for filtration is placed on the edge 92 of the cup 90 on the lower side (the reference line segment 57 side) of the shoulder portion 72.

  In the state where the filter body 10 for filtration is mounted on the cup 90 in this manner, the lower portion of the filter portion 20 has a substantially conical shape. In this state, powdered coffee beans 94 are dropped on the upper surface of the filter unit 20. Furthermore, for example, by pouring hot water, the coffee liquid passes through the filter portion 20 and is extracted into the cup 90.

  FIG. 4 is a plan view of a modification of the filtration filter body of the present embodiment.

  In this modification, the shapes of the sides of the shoulder 72 and the arm 73 on the main support 80 side are different. In this modification, the side of the shoulder 72 and the arm 73 on the main support 80 side is a combination of three arcs.

  FIG. 5 is a perspective view schematically showing a method of manufacturing the filter body for filtration of the present embodiment.

  First, a metal mold, for example, is pressed against a thick paper larger than the support portion 50 to form a plurality of support portions 50. At this time, if the structure of the support portion 50 and the mold are formed so that a portion to be removed does not occur inside the support portion 50 or between the adjacent support portions 50, waste of the thick paper is eliminated. Also, by doing this, the possibility of the cardboard to be removed being mixed in with the product as foreign matter can be eliminated. Here, the support portion 50 is formed of thick paper, but another material may be used as long as it is a flexible plate-like member. For example, it may be made of resin.

  Next, for example, the support portion 50 is attached to, for example, a band-shaped non-woven fabric 32 with an adhesive (support portion forming step). At this time, the support portions 50 are attached symmetrically with the line 34 substantially parallel to the direction in which the non-woven fabric 32 extends. A line 34 substantially parallel to the direction in which the non-woven fabric 32 extends is the fold line 21. The band-shaped non-woven fabric 32 is, for example, in the form of a roll.

  Thereafter, the band-shaped non-woven fabric 32 is folded at the center in the width direction (folding step), and is joined while being ultrasonically cut along a line 34 parallel to the folded line across the support 50 ( Sealing process). Furthermore, the non-woven fabric 32 is ultrasonically cut along the line 35 in the direction crossing the line 34 parallel to the folded line across the support portion 50 on both sides of the support portion 50 in the extending direction of the non-woven fabric 32. While bonding (first and second cutting steps). The methods of cutting and sealing are not limited to the methods described herein. For example, after pressure bonding, cutting may be performed with a blade or the like. The order of the sealing step, the first cutting step and the second cutting step may not be in this order. Moreover, you may perform a support part formation process after a sealing process, a 1st cutting process, and a 2nd cutting process.

  When coffee beans and the like are previously enclosed in the filter unit 20, for example, after performing the folding step, the sealing step, and the first cutting step, the coffee beans are formed of the non-woven fabric 32 and an opening is formed in one side. After being introduced into the formed bag, the filter body 20 is sealed by the second cutting process.

  Since the coffee liquid is mainly discharged from the vicinity of the apex of the substantially conical filter portion 20, the time for which the liquid is in contact with the coffee beans 94 is prolonged by using such a filter body 10 for filtration. The taste of the solution is improved. In the latter half of the extraction, the vicinity of the top of the filter unit 20 may be immersed in an extract such as coffee liquid.

  Since the inlet side joint portion 52 and the outlet side joint portion 54 are connected by the pair of columns 70 and the main column 80, the upper side of the filter portion 20 is outside when the filter body 10 for filtration is mounted on the cup 90 or the like. By pulling on, an opening that is sufficient to pour the liquid is formed naturally. For this reason, even when coffee beans are enclosed in the filter body 10 for filtration, there is little possibility that the coffee beans will be scattered due to excessive tension.

  In addition, the shoulder portion 72 hooking on the cup 90 is excessively separated from the filter portion 20 because it is connected to the injection side joint portion 52 and the discharge side joint portion 54 located above by the pair of columns 70 and the main column 80. There is no risk of unintended deformation, and it is stable even when the liquid is poured. That is, shape stability is improved.

  The filter body 10 for filtration can be placed on the cup 90 such that the hand of the user does not touch other than the grip portion 72 and the coupling arm 74. Therefore, it is hygienic because it can be used without touching the hand of the person with the coffee beans 94 or the portion touched by the coffee liquid.

  Powdered coffee beans or the like may be sealed in advance inside the bag-like filter unit 20 sealed by the sealing wire of the filter body 10 for filtration. In this case, after the filter body 10 for filtration is placed on the cup 90 or the like, hot water or the like can be injected without the coffee beans passing through the filter unit 20.

  Further, the side on the main support 80 side of the arm 73 may be formed so as to once extend toward the main support 80 from the shoulder 72 toward the coupling arm 74. By forming in this manner, the side on the main support 80 side of the connecting portion between the shoulder 72 and the arm 73 that is hooked to the edge 92 of the cup 90 is pinched without being separated too much from the edge 92 of the cup 90 Stability is improved.

  The side on the main support 80 side of the connecting portion between the shoulder 72 and the arm 73 draws an arc that approaches the main support 80 as it goes from the shoulder 72 to the reference line segment 57. By forming in this manner, the width of the connecting portion between the shoulder 72 and the arm 73 can be made wider, and the connecting portion between the shoulder 72 and the arm 73 hooked on the edge 92 of the cup 90 Can improve the strength of the

DESCRIPTION OF SYMBOLS 10 ... Filter body for filtration, 20 ... Filter part, 21 ... Folded line, 22 ... Side, 23 ... Side, 24 ... Side, 32 ... Non-woven fabric, 34 ... Line, 35 ... Line, 50 ... Support part, 52 ... Injection | pouring Side joint part 53: Sticking part 54: Discharge side joint part 55: Point 56: Point 57: Reference segment 60: Gripping part 70: Strut pair 72: Shoulder part 73: Arm part 74 ... bonding arm, 80 ... main strut, 90 ... cup, 92 ... rim, 94 ... coffee beans

Claims (6)

A membrane-like first filter material and a membrane-like second filter material at least a part of which overlaps the first filter material, the first filter material and the first filter material along a closed sealing line A filter section in which the second filter material is sealed,
With respect to the reference line segment passing through two points on the injection side joint and the sealing line on the outer surface of each of the first filter material and the second filter material in the sealing region surrounded by the sealing line A gripping part is joined at the discharge side joining part opposite to the injection side joining part, extends from the injection side joining part toward the reference line segment, and can be separated from the filter part, and both sides of the gripping part in a post possible pairs spaced apart from said filter portion from the Note entry side bonding portion extending toward the reference line segment, the main possible separation from said filter unit extending from said strut pair to said discharge side joint portion A column, a pair of shoulders each extending on both sides from the main column and being separable from the filter, and a pair extending from each of the shoulders toward the reference segment and being separable from the filter An arm portion of a flexible plate-like member; And of the support portion,
A filter body for filtration characterized in that   The main support side of the connection portion between the arm portion and the shoulder portion draws an arc which approaches the main support side as it goes from the shoulder portion to the reference line segment. The filter body for filtration as described. The sealing line is a quadrilateral having an end point of the reference segment as a vertex, and the support portion is a diamond having one of diagonals substantially parallel to the reference segment. The filter body for filtration of Claim 1 or Claim 2.   The filter body for filtration according to claim 3, wherein the first filter material and the second filter material are folded at one side close to the discharge side joint portion of the sealing wire.   The said 1st filter material and the said 2nd filter material are formed with the nonwoven fabric, The said support part is formed with paper, The said support part is formed in any one of the Claims 1 thru | or 4 characterized by the above-mentioned. Filter body for filtration. Folding a strip of filter material at a fold line substantially parallel to its direction of extension;
Sealing the filter material with a first sealing line substantially parallel to the folding line after the folding process;
A first cutting step of sealing and cutting along the first cutting line crossing the folding line and the sealing line after the folding step;
A second cutting step of sealing and cutting along the second cutting line which is separated from the first cutting line in the extending direction of the filter material and which intersects the folding line and the sealing line after the folding process. When,
In the sealing area surrounded by the sealing line formed by the folding line, the sealing line, the first cutting line, and the second cutting line, the injection side joint portion and the sealing are formed on the outer surfaces of the filter material. The filter section is joined with a reference line segment passing through two points on the stop line at the discharge side joint section opposite to the injection side joint section, and extends from the injection side joint section toward the reference line segment and and is a spaced capable gripper, the grip portion of the separation can strut pairs on both sides at the extend toward the reference line segment from the Note entry side bonding portion the filter unit, the discharge-side joint from the strut pairs Extending from the main support column to a portion that can be separated from the filter portion, a pair of shoulders extending from the main support pole to each of the sides from the main support member that can be separated from the filter portion; a pair of arms capable of separation from the headed extends the filter unit, the A supporting portion forming step of forming wrinkles plate member,
A method of manufacturing a filter body for filtration characterized in that

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