JP2003070650A - Dripper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a disposable dripper storing the contents with extracted ingredients such as regular coffee powders, red tea leaves or green tea leaves. SOLUTION: The dripper consists of a nearly rectangular cylindrical paper body having folded side edges with infolded parts on both sides, bonded to each other in overlapping margins and a bag body with the filtering function. The bag body is inserted into the cylindrical paper body and bonded on the edge side of the opening of the bag body to one opening edge of the cylindrical paper body. The opening part of the bag body is closed by the ultrasonic welding via the cylindrical paper body in such a way that it can be peeled off after the contents are stored in the bag body.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a dripper used when straining a content having a component to be extracted such as regular coffee powder, black tea or green tea leaves, and more specifically,
The present invention relates to a dripper that integrally stores contents having components to be extracted.

[0002]

2. Description of the Related Art Conventionally, a foldable paper plate,
A disposable dripper consisting of a structure in which a bag containing contents containing extracted components such as regular coffee powder, tea and green tea leaves is attached to the inside of this paper board is commercially available and is easy to use. For this reason, it is often used by single persons and single employees. This type of dripper puts a paper plate on the opening edge of the cup, extracts the components to be extracted from the contents by pouring an appropriate amount of hot water into the bag, and the extracted liquid flows down into the cup. The extract is then drunk.

As this type of dripper, for example,
JP-B-60-7615 or Patent No. 290
Japanese Patent No. 1053 is disclosed. These are all
Stand up the folded dripper and place the dripper on the opening edge of the cup using the protrusions or notches or notches provided on the dripper, and pour hot water into the dripper to put it in the cup. Regular coffee and tea,
Although it is an extremely useful substitute for obtaining green tea, the former is the regular coffee powder, tea or green tea contained inside that is opened by pushing the opening edge of the filter paper bag open with your finger when using it. It is configured to expose the contents containing extracted components such as leaves, and it is a specification that has some problems in hygiene because the pouring part is touched with fingers, and regular coffee powder, black tea on the fingers It has a specification that contents such as green tea leaves and green tea leaves may be attached and stain the fingers.

In the latter case, when the opening for pouring is provided in the filter paper bag containing the contents having the components to be extracted such as regular coffee powder, black tea and green tea leaves, the latter is provided along the upper edge of the filter paper bag. It is configured to open at the perforations provided and to provide an opening for pouring, and when the filter paper bag is opened at the perforation surface, regular coffee powder, tea, green tea leaves, etc. present at the perforations of the filter paper bag, etc. The specification has the possibility that the contents containing the components to be extracted may scatter at the same time as opening and stain the surrounding area.

[0005]

SUMMARY OF THE INVENTION Therefore, the present invention has been made in view of the above problems, and its object is to extract regular coffee powder, black tea, green tea leaves, etc. While storing the contents with ingredients,
A disposable dripper that is hygienic during use and can be opened by a simple operation without soiling your fingers, etc., and can be easily erected and placed on a cup in a stable state, fixed and filtered. Is to provide.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the inventors of the present invention according to claim 1 of the present invention have folding side edges provided with folding portions on both sides, and an overlap margin portion. Consisting of a substantially rectangular tubular paper body adhered with, and a bag body having a filtering function,
In the dripper, which is obtained by inserting the bag body into the tubular paper body and adhering it to one opening edge of the tubular paper body at the opening edge side of the bag body, the opening portion of the bag body is contained in the bag body. It is characterized in that it is releasably closed by ultrasonic welding through the tubular paper body after accommodating an object. With this configuration, the opening of the bag can be easily closed from the outer surface of the tubular paper body. In addition, the contents can be securely held in the bag until the time of use, and at the time of use, it can be peeled off by pinching the opposing opening edges of one opening edge of the tubular paper body with fingers and pulling in the directions that separate from each other. The opening of the closed bag can be opened smoothly to expose the contents, which is hygienic and does not stain the fingers or the surroundings. Further, after opening the opening of the bag body, the folding portions provided on the folding side edges on both sides of the tubular paper body can be folded inward to easily stand up in a tubular shape and the standing state. Therefore, the pouring port can be surely secured in the open state.

The present invention according to claim 2 provides the invention according to claim 1.
In the dripper described above, the inner surface of the tubular paper body and the outer surface of the bag body are releasably adhered to each other. With this configuration, the bag body is fixed to the tubular paper body, the bag body does not move in the tubular paper body during transportation, and the peelable opening of the bag body is reliably protected. In addition, since it is possible to prevent the tubular paper body and the bag body from being separated from each other at the attaching portion, the contents can be securely held in the bag body until the time of use.

Further, the present invention according to claim 3 is the dripper according to any one of claims 1 and 2, wherein the ultrasonic welding has an ultrasonic horn or a micro projection having a tip in which micro projections are formed in a staggered pattern. The ultrasonic welding device is provided with any one of the ultrasonic welding receiving jigs having a zigzag-shaped surface. With this configuration, the opening of the bag corresponding to the overlapping portion of the tubular paper body can be surely and beautifully formed like the other openings of the bag (the surface of the overlapping portion of the tubular paper body is The bag body corresponding to the back surface or the overlapping portion of the tubular paper body can be closed without causing charring or the like.

Further, the present invention according to claim 4 is based on claim 1.
The dripper described in any one of 1 to 3 above is characterized in that projecting flaps are formed facing each other at a substantially central portion of the one opening edge of the tubular paper body. With this configuration, it is easy to pick it with fingers, and the opening of the peelably closed bag can be opened more smoothly to expose the contents.

The present invention according to claim 5 provides the invention according to claim 1.
The dripper according to any one of claims 1 to 4, wherein an engaging protrusion is formed on the other opening edge of the tubular paper body. With such a configuration, it is possible to stably mount and fix it on the cup opening edge.

The present invention according to claim 6 is the same as claim 1.
The dripper described in any one of 1 to 5 above is characterized in that a window portion is formed at a position facing a substantially central portion of the tubular paper body. With such a configuration, regular coffee powder, the contents having the components to be extracted such as tea and green tea leaves can be compactly housed in the bag body and the dripper is placed on the cup opening edge, By pouring hot water or the like into the bag body, it is possible to appropriately confirm the amount of the extract liquid that has flowed down inside the cup.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention described above will be described in detail below with reference to the drawings. 1 is a plan view showing an embodiment of the dripper according to the present invention, FIG. 2 is a development view of a cylindrical paper body used in the dripper shown in FIG. 1, and FIG. 3 is an implementation of a bag body used in the dripper according to the present invention. FIG. 4 shows an example, FIG. 4 is a perspective view showing an embodiment of the surface shape of the ultrasonic welding receiving jig, FIG. 5 is a view explaining how to use the dripper shown in FIG. 1, and FIG. 6 is related to the present invention. FIG. 7 is a plan view showing another embodiment of the dripper, FIG. 7 is a development view of a tubular paper body used in the dripper shown in FIG. 6, and 1 and 1 ′ in the drawing are drippers and 2,202.
Is a cylindrical paper body, 2 ', 202' is a blank plate of the cylindrical paper body,
3 is a bag body, 20 and 20 'are window portions, 21 and 21' are folding portions, 22 is engaging protrusions, 23, 242, 252, 244 and
254 is a notch, 24, 25, 212, 222, 24
3, 253 are creases, 26, 26 are protruding flaps, 30 is a facing attachment part of the bag body, 31 is a peelable adhesive part, 32 is a strong adhesive part, 33 is a folded part, 210 is a front plate, 220 is 220 A back main plate, 220 'is a back auxiliary plate, α is an overlap margin of a tubular paper body, β is a bent side edge, A is a surface of an ultrasonic welding receiving jig, and B is
Indicates the micro-projections, respectively.

FIG. 1 is a plan view showing an embodiment of a dripper according to the present invention. The dripper 1 has bent side edges β on both sides, and an overlap margin portion α (shown by halftone dots in FIG. 1). Point)
The opposite sticking portion in which the substantially inverted trapezoidal bag body 3 having a filtering function is inserted into the substantially rectangular tubular paper body 2 adhered by the above, and the bag body 3 is partially extended at substantially the center of the opening edge thereof. 30 is folded back and attached to the outer surface of the central portion of the one opening edge (upper edge in FIG. 1) of the tubular paper body 2 and the opening portion of the bag body 3 is placed inside the bag body 3. A content (not shown) having a component to be extracted such as regular coffee powder, black tea or green tea leaves is accommodated and then closed by a peelable adhesive portion 31 formed by ultrasonic welding from the outer surface of the tubular paper body 2. It is a thing. In addition, in FIG.
Both side edges of the bag body 3 are formed of strong adhesive portions 32 that are not easily peeled off, and a lower end portion (lower side portion in FIG. 1) of the bag body 3 opposite to the opening portion is a folded portion 33. Has become.

Then, window portions 20 (not shown) and 20 'are formed at substantially opposite positions in the substantially central portion of the tubular paper body 2 and the both side edges of the tubular paper body 2 are bent. Folding portions 21 and 21 'are provided at substantially the central portion of β, and the both folding side edges β of the other opening edge (lower edge in FIG. 1) of the tubular paper body 2 are further provided.
And four engaging protrusions 22 on the central part (three in FIG. 1)
The engaging projection 22 inevitably forms a notch 23 at the other opening edge (lower edge in FIG. 1) of the tubular paper body 2 by the engagement projection 22.
The locations (two locations in FIG. 1) are formed. The window 20
(Not shown), 20 'compactly accommodates contents (not shown) having components to be extracted such as regular coffee powder, tea and green tea leaves in the bag body 3 and the dripper 1 at the opening edge of the cup. It is placed on the top of the bag, and is provided for appropriately checking the amount of the extract that has flowed down into the cup by pouring hot water or the like into the bag. It is provided in order to securely hold the tubular paper body 2 upright and in a tubular shape, and the engaging projection 22 and the notch 23 cooperate with each other to open the dripper 1 in the cup opening. The window portions 20 (not shown) and 20 'are not indispensable, but the engaging protrusions 22 are provided so that they can be stably placed and fixed on the edge. The number and shape of the cups are not limited to this, and the cup opening In which only needs to be mounted fixably configured on edges.

Next, the cylindrical paper body 2 and the bag body 3 having a filtering function which constitute the dripper of the present invention will be described. First, the tubular paper body 2 will be described. FIG. 2 is a development view of the tubular paper body used in the dripper shown in FIG. 1. In the tubular paper body 2, the back auxiliary plate 220 ′, the front plate 210, and the back main plate 220 have folding lines 24, 25. The bottom edge (in FIG. 2) that is sequentially connected and is orthogonal to the creases 24 and 25.
In addition, the engaging projections 22 and 22 projecting line-symmetrically with respect to the creases 24 and the creases 25, respectively, and the protrusions protruding to the central portion of the front plate 210 and the substantially central portion of the rear main plate 220. The mating protrusions 22, 22 are formed (this engaging protrusion 22
Therefore, the notch 23 is necessarily formed, and the cutting edge 241 having a substantially U-shape is provided at the substantially central portion of each of the creases 24 and 25 so as to be line-symmetric with respect to the creases 24 and 25. , 251, and said cutting edges 241, 2
The semi-circular cutout portion 24 is connected to the upper end 51 and is line-symmetrical with respect to the folding lines 24 and 25 on the upper edge (upper side in FIG. 2).
2, 252 are provided and the cutting edges 241 and 251 are provided.
Fold lines 243, 243 and 253 which are line-symmetric with respect to the fold lines 24 and 25 extending from the respective both ends to the lower edge (upper side in FIG. 2) and intersecting the fold lines 24 and 25,
253 is provided, and the folding lines 24 and the folding lines 2 are provided.
43 and 243 are provided, and circular notches 244 and 254 are provided around the intersection (not shown) of the crease 25 and the intersection (not shown) of the crease 25 and the creases 253 and 253, respectively. A blank plate 2'provided with substantially inverted trapezoidal window portions 20 and 20 'at the central portion of 210 and the substantially central portion of the back main plate 220, and the blank plate 2'is
First, the back main plate 220 is mountain-folded and folded on the front plate 210 by the creases 25, and then the back auxiliary plate 220 ′ is folded on the back main plate 220.
The cylindrical paper body 2 can be obtained by mountain-folding and folding and stacking and folding the back main plate 220 and the back auxiliary plate 220 ′ with the overlapping margin α (see FIG. 1) with an adhesive or the like. . The blank plate 2'can be easily manufactured by a known punching machine (die cutting machine).

The folding part 21 shown in FIG. 1 includes the cutting edge 241, the substantially semicircular notch 242, the folding lines 243 and 243, the circular notch 244 and the cutting edge 241. It is configured to be formed by the folding line 24 between the circular cutout 244 and the folding portion 21 ′ has the cutting edge 251 and the substantially semicircular cutout 25.
2, the folding lines 253, 253, and the circular cutout 25
4 and the crease 25 between the cutting edge 251 and the circular notch 254. still,
As a material for forming the tubular paper body, for example, 200 to
Thick paper such as 340 g / m ² water resistant card paper and ivory paper is suitable.

Next, the bag body 3 will be described. The bag body 3 used in the present invention is not particularly limited as long as it is a material having a filtering function, but in consideration of workability when forming a bag body, the material itself has thermal adhesiveness, or It is preferable that the innermost layer has thermal adhesiveness. For example, a non-woven fabric having water permeability such as polyolefin or polyester such as polyethylene or polypropylene, or a layer containing a thermoplastic resin such as olefin or polyester such as polyethylene or polypropylene in the innermost layer 2 Or a filter paper having a three-layer structure can be exemplified.

The bag body 3 is formed by folding a long sheet made of a roll having a heat adhesive property, for example, a filter paper having a three-layer structure containing modified polypropylene in the innermost layer into two in parallel with the longitudinal direction. The portion 33 is not formed, or the folded portion 33 is W-folded (gusset-folded) and superposed, and heat-bonded to a predetermined shape (bonding portion indicated by reference numeral 32 in FIG. 1), and then cutting and / Or die-cutting (in FIG. 1, die-cutting into a substantially trapezoidal shape in which the folded portion 33 has a narrow width). FIG. 3 is a view showing an embodiment of a bag body used in the dripper according to the present invention,
3A is a plan view and FIG. 3B is XX of FIG. 3A.
It is a line sectional view. This bag body 3 has a folded portion 33 formed in a W fold (gusset fold), and compared with a case in which the folded portion 33 is formed in two folds, regular coffee powder, tea, green tea leaves, etc. The bag can be made more compact if the contents containing the components to be extracted are the same, and the bottom of the bag can be completely opened by pouring hot water into the bag to efficiently extract the extract. Obtainable.

As for the assembly of the tubular paper body 2 and the bag body 3, as described above, the bag body 3 is inserted into the tubular paper body 2 and the substantially center of the opening edge of the bag body 3 is set. Completion is made by folding back the partially attached opposing sticking portion 30 to the outside and sticking it to the outer surface of the central portion of one opening edge (upper edge in FIG. 1) of the tubular paper body 2. In FIG. 1, the facing attachment portion 30 of the bag body 3 is shown attached to the outer surface of the tubular paper body 2, but it may be attached to the inner surface of the tubular paper body 2. Good. In any case, the sticking point of the tubular paper body 2 is shown in FIG.
It is desirable to make the upper edge substantially at the center, and this is because the bag body 3 is attached to the upper edge of the tubular paper body 2 when the tubular paper body 2 is erected in a tubular shape during use. By
Both sides of the bag body 3 (upper in FIG. 1) are lifted, and the bag body 3
This is because it guarantees a large and reliable opening and is suitable for pouring and extracting. Further, the sticking of the tubular paper body 2 and the bag body 3 can be appropriately selected and used from hot-melt type, solvent type, water-based type, reaction type, pressure-sensitive type and the like.
Further, the adhesive for adhering the overlap margin α (see FIG. 1) between the back main plate 220 and the back auxiliary plate 221 of the blank 2 ′ can also be appropriately selected and used from the above adhesives. Is natural.

The semi-finished dripper 1 in which the bag body 3 is assembled to the tubular paper body 2 in this way is then filled with the regular coffee powder, tea and green tea leaves, and other components to be extracted. The contents having the above are filled from the opening portion of the bag body 3 and then heat-bonded so that the opening portion of the bag body 3 becomes the peelable adhesive portion 31, and the dripper 1 of the present invention.
Becomes

Next, a method of forming the peelable adhesive portion 31 of the opening of the bag body 3 will be described. The peelable adhesive portion 31 has, for example, an ultrasonic horn (not shown) having a flat tip, and an ultrasonic wave having a surface A in which minute protrusions B are formed in a zigzag pattern by knurling as shown in FIG. Using an ultrasonic welding device (not shown) equipped with a welding receiving jig (the minute protrusions B exemplify a quadrangular pyramid-shaped protrusion in FIG. 4), ultrasonic vibration is applied to cause welding. It was formed. As described above, the dripper 1 shown in the present embodiment assembles the bag body 3 on the tubular paper body 2, and then the regular coffee powder, black tea, green tea leaves, and other components to be extracted into the bag body 3. Is filled through the opening of the bag body 3, and finally the opening of the bag body 3 is ultrasonically welded to form the peelable adhesive portion 31, and the peelable adhesive portion 31. Is formed by ultrasonic welding from the outer surface of the tubular paper body 2 through the tubular paper body 2.

However, in the usual hot plate sealing method, impulse sealing method, etc., it is extremely difficult to peelably adhere the inner surfaces of the opening of the bag body 3 through the thick paper forming the tubular paper body 2. However, it takes time to try to bond them, the production efficiency decreases, and the inner and outer surfaces of the tubular paper body 2 and the surface of the bag body 3 are easily burnt and brown. In addition, the pressing is uneven near both ends (the left and right ends of the overlap margin portion α in FIG. 1) of the overlapping portion of the three thick sheets in the overlap margin portion α (see FIG. 1) to which the tubular paper body 2 is adhered. Therefore, the overlap margin portion α of the opening portion of the bag body 3 that is adhered (see FIG.
It is difficult to use these methods, because a sealing defect such as a missing seal occurs at both ends (the left and right ends of the overlap margin portion α in FIG. 1) of the three-sheet overlapping portion of the thick paper (see FIG. 1).

As a sealing method for solving the above problem, an ultrasonic welding method capable of selectively adhering a desired portion is considered, and an ultrasonic horn (not shown) having a flat tip and a flat surface are used. When ultrasonic welding is performed by applying ultrasonic vibration using an ultrasonic welding device (not shown) equipped with an ultrasonic welding receiving jig (not shown) having the above, the opening of the bag 3 is It was possible to adhere the tubular paper body 2 in a peelable manner and no scorching was observed on the inner and outer surfaces of the tubular paper body 2 or the surface of the bag body 3, and the good results were obtained. Since the ultrasonic vibration energy is concentrated on the overlap margin α (see FIG. 1), the pressure adjustment and the output adjustment for obtaining good results are quite complicated, and although not shown, the overlap margin α ( Ultrasonic wave relief processing for one sheet of paper in Fig. 1) When applied to a horn or a jig for ultrasonic welding, the relief processed part and the overlap margin α
(Refer to FIG. 1) There was a problem that it was difficult to align with. Then, as a result of diligent research, an ultrasonic horn (not shown) having a flat tip, and an ultrasonic welding receiver having a surface A in which minute protrusions B are formed in a zigzag pattern by knurling as shown in FIG. Ultrasonic vibration is applied using an ultrasonic welding device (not shown) equipped with a jig (in FIG. 4, the minute protrusions B are quadrangular pyramidal protrusions), and thus the tubular paper body is obtained. The ultrasonic vibration energy can be applied to the portion corresponding to the overlapping margin part α (see FIG. 1) of 2 without being excessively concentrated, and the surface of the bag body 3 is not charred, It was found that the opening can be peeled off by ultrasonic welding. By the way, in the examples, the micro-projections B formed in a staggered pattern were formed on the surface of the ultrasonic welding receiving jig (in FIG. 4, the micro-projections B are quadrangular pyramidal projections). Jig for ultrasonic welding (Fig. 4
In the above, the minute protrusions B are exemplified as quadrangular pyramidal protrusions), and the surface of the minute protrusions B may be flattened, and the minute protrusions B formed in a zigzag pattern may be formed at the tip of the ultrasonic horn. In addition, although the minute protrusions B are quadrangular pyramidal protrusions and are arranged in a so-called cross pattern, the present invention is not limited to this.
It may have a pyramid shape such as a pentagonal pyramid shape or a conical shape.

Next, a method of using the dripper 1 of the present invention constructed as described above will be described.
First, the dripper 1 shown in FIG. 1 in which the contents having the components to be extracted such as regular coffee powder, black tea or green tea is filled in the state that the bag body 3 is set on the tubular paper body 2 is the tubular shape Peeling the peelable adhesive portion 31 of the bag body 3 that is peelably closed by grasping one of the opposite opening edges (upper edge in FIG. 1) of the paper body 2 with fingers and pulling the paper body 2 in the directions in which they separate from each other. And the opening is provided, and the folding portions 21 and 21 'provided on the tubular paper body 2 are folded with fingers or the like to keep the tubular paper body 2 in a cylindrically opened state, and thereafter, Engaging protrusion 22 and notch 23 provided on the lower end edge of the tubular paper body 2.
Then, the dripper 1 is placed and fixed on the opening edge of the cup as shown in FIG. 5, and an appropriate amount of hot water or the like is poured from the opening of the bag body 3 to allow the desired extract to flow down into the cup, and this extraction Drink the liquid.

FIG. 6 is a plan view showing another embodiment of the dripper according to the present invention, in which the dripper 1'is
The tubular paper body 2 of the dripper 1 shown in FIG. 1 is composed of a tubular paper body 202 in which projecting flaps 26 (not shown) and 26 'are formed so as to face each other substantially at the center of one opening edge. Except for this, it is the same as the dripper 1 shown in FIG.

FIG. 7 is a development view of the tubular paper body used in the dripper shown in FIG. 6, and the tubular paper body 202 is an upper end edge of the blank plate 2'of the tubular paper body shown in FIG. 2), a substantially rectangular projecting flap 2 projecting from the upper edge (above FIG. 2) at the center of the front plate 210 and the substantially center of the back main plate 220.
It is the same as the blank plate 2'of the tubular paper body shown in FIG. 2 except that it is composed of a blank plate 202 'provided with 6, 26', and this blank plate 202 'has been described as the blank plate 2'. By adopting the same method, the tubular paper body 202 can be obtained. The blank plate 202 'can be easily manufactured by a well-known punching machine (die cutting machine) like the blank plate 2'.

In the above description, the protruding flaps 26,
26 'is formed so as to face a substantially central portion of one opening edge of the tubular paper body 202, but is parallel to the one opening edge of the tubular paper body 202 so that it can be easily picked by a finger or the like. The protrusions may be formed so as to be partially staggered in the direction, or the protrusion length and the protrusion width may be different.

Further, regarding the method of assembling the tubular paper body 202 and the bag body 3 into a semi-finished dripper 1 ', the tubular paper body 2 and the bag body 3 described above are combined. The semi-finished dripper 1 can be assembled easily by using the method. In addition, the bag body 3 stores the contents having the components to be extracted such as regular coffee powder, black tea and green tea leaves, and the dripper 1'of the present invention as a finished product.
The method is also the same, and description thereof will be omitted.

The dripper 1'shown in FIG. 6 manufactured in this way has a direction in which the protruding flaps 26, 26 '(not shown) provided on the tubular paper body 202 are separated from each other by pinching them with fingers or the like. Peelable adhesive part 3 of bag 3
1 is peeled off to provide an opening portion, and the folding portions 21, 21 'provided on the tubular paper body 202 are folded with fingers or the like to maintain the tubular paper body 202 in a tubularly opened state, After that, although not shown, the dripper 1 ′ is placed and fixed on the edge of the cup opening by the engaging projection 22 and the notch 23 provided on the lower end edge of the tubular paper body 202 as in FIG. A suitable amount of hot water is poured from the opening of the body 3 to allow the desired extract to flow down into the cup, and the extract is drunk.

[0030]

As described above, the dripper of the present invention is a dripper containing a content having an extractable component such as regular coffee powder, black tea or green tea leaf, which is hygienic when used. In addition, it can be opened and can be erected with a simple operation without soiling fingers and the like, and it can be placed on the cup opening edge by using the engaging protrusion or notch provided on the tubular paper body. It has an excellent effect that it can be fixed and then the desired extract can be obtained in the cup simply by pouring hot water into the opening of the bag. In addition, the dripper used has an excellent effect that it is disposable and does not require washing and the like.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a dripper according to the present invention.

FIG. 2 is a development view of a tubular paper body used in the dripper shown in FIG.

FIG. 3 is a diagram showing an example of a bag body used in the dripper of the present invention.

FIG. 4 is a perspective view showing an example of the surface shape of the ultrasonic welding receiving jig.

5 is a diagram illustrating a method of using the dripper shown in FIG. 1. FIG.

FIG. 6 is a plan view showing another embodiment of the dripper according to the present invention.

7 is a development view of a cylindrical paper body used in the dripper shown in FIG.

[Explanation of symbols]

1, 1'Dripper 2,202 Cylindrical paper body 2 ', 202' Blank board 3 of tubular paper body Bag body 20,20 'Window part 21,21' Folding part 22 Engagement projection 23,242,252 244, 254 Cutouts 24, 25, 212 Folds 222, 243, 253 Folds 26, 26 'Protruding flap 30 Facing attachment part 31 of bag body Peelable adhesive part 32 Strong adhesive part 33 Folding part 210 Front plate 220 Rear main plate 220 'Rear auxiliary plate α Overlap portion β of tubular paper body B Bent side edge A Surface B of ultrasonic welding receiving jig B Small protrusion

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hitoshi Kyotani             1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo             Dai Nippon Printing Co., Ltd. F-term (reference) 3E067 AA05 AB23 BA13A BB01A                       BC03A CA08 EA07 EC26                       FA01 FC01                 4B004 AA02 AA03 BA22 BA48 CA12

Claims (6)

[Claims] 1. A folding side edge having a folding portion is provided on both sides,
It is composed of a substantially rectangular tubular paper body adhered at the overlap margin and a bag body having a filtering function. The bag body is inserted into the tubular paper body, and the tubular body is formed on the opening edge side of the bag body. In the dripper attached to one opening edge of the paper body, the opening portion of the bag body is removably closed by ultrasonic welding through the tubular paper body after accommodating the contents in the bag body. Dripper characterized by being 2. The inner surface of the tubular paper body and the outer surface of the bag body are releasably adhered to each other.
Dripper described. 3. An ultrasonic welding apparatus comprising: an ultrasonic horn having a tip in which staggered fine protrusions are formed or an ultrasonic welding jig having a surface in which fine protrusions are staggered. The dripper according to claim 1, wherein the dripper is formed by a sonic welding device. 4. The dripper according to any one of claims 1 to 3, wherein projecting flaps are formed opposite to each other at a substantially central portion of the one opening edge of the tubular paper body. 5. The dripper according to claim 1, wherein an engaging protrusion is formed on the other opening edge of the tubular paper body. 6. A window portion is formed at a position facing a substantially central portion of the tubular paper body.
Dripper according to any one of.