JP3841159B2 - Simple drip filter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disposable simple filter convenient for extracting coffee liquid or the like.
[0002]
[Prior art]
There are many proposals for a simple type of filter that is used to pour hot water directly into coffee powder and extract regular coffee, and is disposable after a single use.
The present invention is a disposable filter of this type typified by a coffee filter, in which a thick sheet material is formed in a horizontally long rectangular shape, and left and right portions sandwiching a pouring spout established at a substantially central portion are supported by legs. The present invention relates to an improvement of a filter in which a bag-like filter is integrally attached to a lower surface of a filter body as a piece.
[0003]
More specifically, in the present invention, a filter bag is fastened to the lower surface of a filter main body integrally provided with left and right support leg pieces, and the left and right support leg pieces of the filter main body are bent downward during use. After forming the portal shape, the inner and outer holding pieces provided at the ends of the leg pieces are engaged with the edges of a container such as a coffee cup, and in this state, hot water is poured into the pouring spout of the filter body. The present invention relates to an improvement of a so-called drip-type simple filter that extracts coffee liquid from the coffee powder contained in the bag-shaped filter.
[0004]
Examples of the filter include a coffee filter described in Japanese Utility Model Publication No. 52-2703, or a coffee filter described in Japanese Patent Publication Nos. 59-30411 and 61-3693 proposed by the present applicant. Is known.
In these filters, a filter bag is fastened to the back surface of a substrate (support plate) provided with support leg pieces, and when used, the support leg pieces are bent into a portal shape and projecting pieces (holding) between the leg ends. The piece is fixed on the edge of the cup and placed on the cup. At this time, hot water is poured into the bag supported in a suspended manner to extract the coffee liquid and directly collect it in the cup. Yes.
[0005]
Since the filter is placed on the cup as described above and used, the size is formed based on the cup, and the extracted coffee liquid is dropped from the bottom of the filter bag and collected in the cup. Since it is a drip-type filter, there is a restriction that the filter bag cannot be formed vertically long, and there is inevitably a situation in which the overall shape has to be small.
For this reason, when extracting a coffee liquid with the conventional filter, in order to fill a cup with a coffee liquid, it was not possible to pour a cup of hot water at a time, and it was necessary to pour it in several times.
[0006]
[Problems to be solved by the invention]
The present invention was developed for the purpose of improving this in view of such circumstances, and in the size that can be placed on the cup, the capacity of the filter formed in a bag shape is increased, Provides a drip-type disposable simple filter that facilitates the pouring of hot water and at the same time effectively prevents the coffee liquid extracted from around the filter from leaking out of the cup with this increase in size. There is to do.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention forms a bag-like filter fixed to the lower surface of a filter body having a substrate and a pair of left and right support legs in the shape of a horizontally long ship-shaped bag, and its length direction is The left and right ends are aligned with the lower surface of the inner holding piece provided at the center of the leg end of the support leg piece so as to be aligned with the length direction of the filter body, and the opening edge of the both ends is the lower surface of the support leg piece. In addition, the front and rear opening edges are fixed to the lower surfaces of the front and rear edges of the filter body substrate so as to be integrally assembled. There is.
[0008]
Further, the present invention will be described in detail. In the present invention, the supporting leg pieces are formed in a substantially rectangular shape by extending the supporting leg pieces from the left and right side edges of the substrate having a pouring opening in the center. A filter body that forms an inner holding piece at the center and an outer holding piece on both sides thereof, and is fixed to the lower surface of the filter body so as to surround and close the pouring port from below. In the drip-type simple filter consisting of a bag-like filter containing the extract,
The filter is formed in the shape of a horizontally long boat-shaped bag, and is aligned with the filter body in the length direction, with the opening edges of the left and right ends facing the lower surface of the inner holding piece, and the front and rear opening edges are Attached to the lower surfaces of the front and rear edges of the substrate and integrally fixed, and the fixing boundary lines with the filter body at the opening edges of the left and right ends are substantially V-shaped on the lower surfaces of the supporting leg pieces, respectively. An object of the present invention is to provide a drip-type simple filter characterized by the above.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The accompanying drawings show an embodiment of the present invention, and will be described in detail with reference to the drawings to clarify the features of the present invention.
FIG. 1 is a plan view of a filter according to the present invention, and FIG. 2 is a cross-sectional view taken along line AA of FIG. In the drawings, reference numeral 1 denotes a filter body, and 2 denotes a bag-like filter.
[0010]
The filter body 1 is composed of a central substrate 3 and left and right support leg pieces 4 and 4 extending on both sides of the substrate. The overall shape of the filter body 1 is a substantially horizontally long rectangle as shown in the figure. It has been.
The filter body 1 is formed of a cardboard having a required rigidity or a plastic sheet or the like in order to maintain a shape in use, which will be described later. Here, the filter body 1 is molded with cardboard.
[0011]
FIG. 3 is a plan view showing the filter main body 1, and a pouring hole 5 for pouring hot water is formed in a rectangular shape in the central substrate 3, and the leg ends 6 of the supporting leg pieces 4, 4 on both sides are formed. 6, an inner holding piece 7 is formed at the center in the width direction, and outer holding pieces 8, 8 are formed on both sides thereof.
[0012]
The inner and outer holding pieces 7 and 8 are used for holding and stably fixing the opening edge of the cup when the filter of the present invention is placed on the cup as described later. The inner holding piece 7 is inserted inside the edge of the cup, and the outer holding pieces 8 and 8 protrude outside the edge so as to sandwich the opening edge from inside and outside. For this reason, the above-mentioned inner and outer pieces are formed to have a sufficient protruding length so that they do not come off when sandwiched, and are deep enough to allow the edge of the opening of the cup to enter between the pieces.
[0013]
4 to 6 show the bag-like filter 2 before being assembled to the filter body 1. 4 is a plan view of the filter immediately before being assembled to the filter body 1, FIG. 5 is a cross-sectional view taken along the line BB of FIG. 4, and FIG. 6 is a plan view of a state in which the bag-shaped filter is developed.
[0014]
The formation of the bag-like filter 2 is not limited to the one shown in the figure, but here, an example of forming it into a bag shape by cutting out from a flat filter sheet such as viscose paper and folding it is shown because of manufacturing advantages. ing.
FIG. 6 is a development view of the bag-like filter 2. The bag-like filter is cut out from the filter material, that is, as a substantially square sheet piece, and is folded and folded.
[0015]
The cut out sheet piece is provided with a horizontal folding reference line 9 at the center, and second folding lines 10 and 10 are provided at equal intervals vertically from the reference line to provide two bag pieces 11a, 11b and two bag pieces 12a and 12b are formed in a vertically symmetrical shape. Then, the two bag pieces 11a and 11b are bent with the reference line 9 as a base line so that the two bag pieces 11a and 11b are in contact with each other. , 11b form the main body of the bag.
[0016]
Thereafter, the bag pieces 12a and 12b following the edges of the second folding lines 10 and 10 are opened at a right angle by folding the bag pieces 12a and 12b at a right angle with respect to the lines 10 and 10, and along the edges of the two bag pieces 12a and 12b. The paste margin portions 14a and 14b formed in this manner are attached to and adhered to the lower surface (back surface) of the filter body 1 to complete the filter of the present invention.
[0017]
The bag-shaped filter will be described in more detail. The sheet pieces cut into a square shape are approximately equal to the horizontal length so that they match when overlapped, and the vertical length is the vertical width of the filter body. When the bag pieces 11a and 11b are bonded to each other by the paste margin portions 13a and 13b so that the bag pieces 11a and 11b are bonded to each other in the contact surface shape, the width of the two bag pieces 12a and 12b spreading outward from these pieces is the filter body. It is made to coincide with the upper and lower widths of 1.
[0018]
The paste margins 14a and 14b respectively formed along the edges of the bag pieces 12a and 12b are narrowed at the respective central portions so as to match the widths of the upper and lower edges of the base 3, and the paste margins. The left and right end portions of each are provided in a right triangle shape so as to fit on the lower surfaces of the support leg pieces 4 and 4.
[0019]
Further, the left and right ends of the bag pieces 12a and 12b are provided with cutout portions 15 so that the right marginal triangular portions 14a and 14b are cut.
[0020]
As described above, the bag-like filter 2 is bonded to the paste margins 13a and 13b to form two bag pieces 11a and 11b into a bag shape, and the two outer bag pieces 12a and 12b are horizontally arranged as described above. When opened, the two unfolded bag pieces 12a and 12b are substantially the same as the shape of the filter body 1 as shown in FIG. 4, and the margins 14a and 14b shown by hatching in this drawing are provided. When bonded to the lower surface of the main body 1, it is bonded to substantially the entire lower surface.
[0021]
FIG. 1 is a plan view showing a completed state of the filter of the present invention by bonding a bag-like filter 2 to the lower surface of the filter body 1. In this figure, a broken line indicated by a reference numeral 16 is an adhesion boundary line that indicates a boundary between the lower surfaces of the left and right support leg pieces 4 and 4 and a portion that is exposed without adhering to the bag pieces 12a and 12b.
This adhesive boundary line 16 appears as a diagonal line from the edge of the substrate 3 to the center of the inner holding piece 7 at both ends of each bag piece 12a, 12b. A boundary line is formed, and triangular non-adhesive regions 17 and 17 are formed on the lower surfaces of the left and right support leg pieces 4 and 4.
[0022]
The adhesive boundary line 16 functions to prevent the extracted liquid such as coffee liquid that has passed through the filter 2 from leaking out of the cup during use, and this relationship will be described through the actual use. I will decide.
[0023]
The filter of the present invention is in a flat state as shown in FIG. 1 in a completed state. The bag-like filter 2 fixed to the lower surface of the filter main body 1 is bonded to the lower margins 14a and 14b of the bag pieces 12a and 12b as described above, thereby attaching the bag pieces 12a and 12b to the lower surface of the main body 1. The bag pieces 11a and 11b, which are placed in close contact with each other and bonded to each other at the end margin portions 13a and 13b to form a bag shape, are in contact with each other and vertically along the horizontal center line of the filter body. It will be in the state which hung down (refer FIG. 2).
[0024]
When the filter is stored or packaged together, the hanging bag pieces 11a and 11b are folded along the two-dot chain line in FIG. It will be.
[0025]
The use of this filter begins with the filter body 1 in a flat state being bent into a gate shape at the boundary position between the substrate 3 and the support leg piece 4. Even if there is a slight deviation in the folding position at this time, there is no problem. However, if the folding line 18 is formed by pressing the folding position into a line in advance as shown in FIG. Can be assembled into a portal shape.
[0026]
When the left and right support leg pieces 4 and 4 are bent, the left and right ends of the bag-like filter 2 secured to the lower surfaces of the support leg pieces 4 and 4 are close to each other. Will open in a bag shape and open.
[0027]
As shown in the figure, the attachment to the cup 19 is performed by inserting the inner holding pieces 7 of the support leg pieces 4 and 4 into the inside of the opening edge and pressing them as they are.
As the inner holding piece 7 is inserted, the outer holding pieces 8 and 8 protrude out of the opening edge and are sandwiched from inside and outside, so that the filter is placed and fixed in a stable state.
[0028]
The filter placed on the cup 19 holds the filter 2 between the supporting leg pieces 4 and 4 standing up and down, opens in a bag shape, and keeps its bottom portion suspended above the cup. Will do.
[0029]
Extraction of coffee or the like by the filter of the present invention is placed on the cup 19 as described above, and then a required amount of coffee powder (about 7 to 10 g for extraction of one cup of coffee cup) from the pouring spout 5. Of coffee powder), and hot water is poured into this.
The amount of hot water is limited to the range in which the cup 19 is filled with the coffee liquid, and an appropriate concentration of the coffee liquid is obtained in this amount.
[0030]
The filter of the present invention is constructed and used as described based on the embodiment shown in the drawings. This filter has a structure including a filter 2 having a size over the entire lower surface of the filter body 1 which is folded and assembled into a gate shape. Therefore, even if the entire size including the filter main body 1 is reduced in size, a necessary and sufficient volume of the filter 2 can be secured.
[0031]
The size of the filter is determined based on the size of the cup 19 that receives the extract, but the filter 2 is formed according to the size of the filter body 1 to increase the volume. Therefore, the amount of hot water poured can be increased, and therefore the hot water pouring work can be reduced.
[0032]
Further, when hot water is filled in the filter 2 by pouring this hot water, the filtered coffee liquid permeates from the entire surface of the filter and flows along the outer surface of the filter. The adhesive boundary line 16 is formed from the edge of the pouring port 5 toward the inner holding piece 7 at the leg end in the filter portion in contact with the lower surface of the pouring hole, and contact with the filter is released outside the boundary line 16. The filtered coffee liquid flows through the boundary line 16 and flows down toward the inner holding piece 7 inserted into the cup 19. For this reason, leaking out of the cup through the supporting leg piece 4 is avoided.
[0033]
By the way, in the above description, the filter has been described as a single unit. However, coffee powder or the like may be stored in the filter 2 in advance, and this may be stored in an airtight packaging bag and handled as a filter containing coffee powder. Needless to say, the content to be filtered is not limited to coffee powder, but can also be used as a filter for green tea, tea, etc., and the use can be freely selected by the user. It is.
[0034]
【The invention's effect】
As described above, since the filter of the present invention can form a bag-shaped filter that matches the size of the filter body, the volume can be increased, and the number of times of hot water pouring can be reduced. There is an advantage that the work becomes easier.
In addition, although the filter of the present invention has a large swing, the boundary between the filter and the support leg is formed toward the center of the leg end, and the extract that flows along the outer surface of the filter flows. There is an advantage that the liquid can be used in a sanitary and safe manner because it does not leak out because it flows into the inner holding piece that is pushed into the cup along the adhesive boundary line.
[Brief description of the drawings]
FIG. 1 is a plan view of a developed state of a filter of the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a plan view of a filter body.
FIG. 4 is a plan view of the bag-like filter before being attached to the filter body.
5 is a cross-sectional view taken along line BB in FIG.
FIG. 6 is a development view of a bag-like filter.
FIG. 7 is a perspective view illustrating a use state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Filter body 2 Bag-like filter 3 Filter body substrate 4 Support leg piece 5 Pouring port 7 Inner holding piece 8 Outer holding piece 9 Bending reference line 10 Bending line 11a, 11b Bag piece 12a, 12b Bag piece 13a , 13b Paste part 14a, 14b Paste part 16 Adhesive boundary line 17 Non-adhesive region

Claims (1)

A pair of supporting leg pieces (4, 4) that are bent from the left and right side edges of the substrate (3) that opens the pouring gate (5) in the center and that are opposed to each other are extended from the sides. A filter main body which is formed in a long rectangular shape and has an inner holding piece (7) at the center portion and an outer holding piece (8) on both sides at the leg ends of the supporting leg pieces (4, 4). A drip type comprising: (1) and a bag-like filter (2) which is attached to the lower surface of the filter main body (1) and accommodates an extractable substance inside the pouring port (5) from below. In a simple filter,
The bag-like filter (2) has two bag pieces (11a, 11b) facing each other by bending the folding reference line (9) to the base line, and extends from the bag pieces, and each has a horizontal right-angle shape. folding is two bags pieces (12a, 12b) constructed from the said two bags pieces (11a, 11b) are adhered to right and left ends facing contact to form a body portion of the bag, also the 2 The two bag pieces (12a, 12b) extending from the two bag pieces (11a, 11b) are aligned with the size of the filter body (1) in the butted state , and the entire surface of the back surface of the filter body is provided. The contact margins are formed on the back surfaces of the support leg pieces (4, 4) and the inner clamping piece (7) by bonding the margin allowances (14a, 14b) formed along the respective edges. (14a, 14b) between the bonded portion and the non-bonded region (17) Chakukyokai line (16) to said substrate (3) of the edge the inner holding piece (7) to the over and formed obliquely the fastening border (16, 16) is to form a generally V-shaped A drip-type simple filter characterized in that the bag-like filter (2) is fixedly bonded to the lower surface of the filter body (1) .

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