JP3047217U - Coffee filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drip type filter formed by folding and joining filter papers so as to form a funnel having a circular upper end opening and a straight bottom side by expanding opposite curved end sides. The coffee filter of the ware can be easily spread apart by separating the overlapping curved edges. A small tongue piece (3) protruding from one of curved curved sides (1a, 1b) from the other curved side.
The small tongue piece 3 is pinched with a fingertip, so that even if both curved end sides 1a and 1b are in close contact, they can be easily separated and greatly expanded.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a coffee filter to be loaded into a drip filter.

[0002]

[Prior art]

 As shown in FIGS. 10 and 11, the coffee filter loaded in the drip filter is formed by folding the filter paper along one inclined side 1c and superimposing it in a substantially fan shape, and then overlapping the other inclined side. 1d and the lower side 1e are joined by embossing, and only the curved end sides 1a and 1b facing each other are formed so as to be expandable, and are supplied to the user in a state of being folded flat.

[0003] In use, the two curved end sides 1a and 1b are greatly expanded back and forth to form a funnel having a circular opening at the upper end and a linearly narrowed base, which is then drip-filtered. It will be loaded along the inner surface of the vessel.

[0004]

[Problems to be solved by the invention]

 Opposite curved edges 1a and 1b of a coffee filter formed by flattening and joining filter paper are thin and have the same shape over the entire length, so that both curved edges are separated with a fingertip. It was difficult to do so, and it often took time to open the coffee filter.

The present invention has been made in view of such circumstances, and a coffee filter capable of easily and easily separating and expanding both curved edges that are folded and closely attached to each other. The purpose is to provide.

[0006]

[Means for Solving the Problems]

 This invention has the following configuration to achieve the above object.

In the invention according to the first aspect, a small tongue piece projecting from the other curved end is protruded from one of the overlapped curved ends.

In the invention according to claim 2, one of the overlapping curved edges is formed with a cutout recessed from the other curved edge.

According to the third aspect of the present invention, the curved edges overlapped with each other are set to have slightly different curved shapes so that they do not coincide with each other at least in a certain range in the longitudinal direction.

[0010]

[Action]

 According to the configuration of the invention according to claim 1, the small tongue piece protruding from one of the curved ends is pinched with a fingertip and pulled outward, so that both curved ends can be easily separated. Each curved edge slightly widened by the separation can be pinched with both hands and further expanded.

Further, according to the configuration of the invention according to claim 2, it is possible to pinch the other curved end with a fingertip of a thumb and a forefinger located in a notch formed in one curved end. The two curved edges can be easily separated by pulling the other curved edge outward.

[0012] According to the configuration of the invention according to claim 3, the curved end side slightly protruding due to the difference in the curved shape can be hooked with the belly of the thumb, and the hooked curved end side is turned over. Thereby, both curved end sides can be easily separated.

[0013]

[Embodiment of the invention]

 Hereinafter, some embodiments of the present invention will be described with reference to the drawings.

First Embodiment FIGS. 1 and 2 show a front view and a perspective view of a coffee filter 1 according to a first embodiment of the present invention. This coffee filter 1 is formed by folding and joining filter papers together to form a substantially fan-shaped flat bag as a whole, and two opposing upper end sides 1a and 1b are opened and closed when they are opened and closed. Each of the inclined sides 1c is formed as a bent side, and the other inclined side 1d and the lower side 1e are overlapped with each other so as to form a circular opening with a curved shape protruding upward. The cut ends thus formed are joined together via the embossed joints 2a and 2b. The embossed joints 2a and 2b are formed by embossing a small pitch concavo-convex pattern, thereby joining the superposed filter papers without using a medium such as an adhesive.

A small tongue piece 3 protruding from the other (front side in the figure) curved end side 1a is protrudingly provided at a central portion in the longitudinal direction of one (the back side in the figure) curved end side 1b. By pinching the small tongue piece 3 with a fingertip, even if both curved ends 1a and 1b are in close contact with each other, they can be easily separated and greatly expanded.

When the coffee filter 1 is used, as shown in FIG. 3, first, the embossed joints 2a and 2b are folded back along the outer surface of the filter, and then the upper end is opened circularly and the bottom is straight. The two curved end sides 1a and 1b are greatly widened back and forth so as to form a funnel shape, and are loaded along the inner surface of the drip filter 4. The drip-type filter 4 loaded with the coffee filter 1 is placed on a container 5 such as a pot or a cup, and an appropriate amount of finely ground coffee beans is poured into the coffee filter 1, and hot water is poured into the coffee filter 1. After the liquid is filtered by the coffee filter 1, the liquid is allowed to flow down into the container 5 from the small holes 6 formed at the bottom of the drip filter 4.

The shape of the small tongue piece 3 may be set to any shape such as a semicircle, a triangular chevron, a trapezoid, etc., in addition to the rectangular shape as shown. The small tongue piece 3 does not necessarily have to be integral with the filter paper, and a small tongue piece 3 separately formed of a colored paper material or a resin sheet may be provided by being attached to the outer surface of one curved end 1b. Conceivable.

Second Embodiment FIGS. 4 and 5 show a front view and a perspective view of a coffee filter 1 according to a second embodiment of the present invention. Since the basic configuration of the coffee filter 1 is the same as that of the first embodiment, a detailed description thereof will be omitted. A semicircular notch 7 that is recessed from the other (rear side in the figure) curved end side 1b is formed. Through this notch 7, the central portion in the longitudinal direction of the other curved end side 1b is moved to the thumb. Thus, even if both curved ends 1a and 1b are in close contact with each other, they can be easily separated and greatly expanded.

FIGS. 6 and 7 show a modification of the second embodiment, in which the notch 7 is provided at two different positions in the longitudinal direction of both curved ends 1a and 1b. By forming it in such a manner, one or both of the curved end sides 1a and 1b can be pinched with a fingertip, which makes it easier to handle. The shape of the notch 7 is not limited to a semicircle, but may be set arbitrarily.

Third Embodiment FIGS. 8 and 9 show a front view and a perspective view of a coffee filter 1 according to a third embodiment of the present invention. The basic configuration is the same as in each of the above embodiments, and a detailed description thereof will be omitted. In this example, the curved shapes of the curved end sides 1a and 1b are set so as to be slightly different from each other so that they do not coincide even if they are overlapped. In the illustrated example, at the location A on one end side in the longitudinal direction of each curved edge 1a, 1b, one curved edge 1a is slightly projected from the other curved edge 1b, and At the other end B in the direction, the other curved end 1b is slightly protruded from the one curved end 1a. Even if the ends 1a and 1b are in close contact, they can be easily separated and greatly expanded.

[0021]

[Effect of the invention]

 As is clear from the above description, according to the present invention, the two curved edges that are overlapped can be easily and easily separated, so that it is possible to easily move to a large spreading operation using both fingers. Thus, the filter set can be performed quickly and quickly.

[Brief description of the drawings]

FIG. 1 is a front view of a coffee filter according to a first embodiment.

FIG. 2 is a perspective view of the first embodiment.

FIG. 3 is an exploded perspective view showing a use mode of the first embodiment.

FIG. 4 is a front view of a coffee filter according to a second embodiment.

FIG. 5 is a perspective view of a second embodiment.

FIG. 6 is a front view showing a modification of the coffee filter of the second embodiment.

FIG. 7 is a perspective view of a second embodiment.

FIG. 8 is a front view of a coffee filter according to a third embodiment.

FIG. 9 is a perspective view of a third embodiment.

FIG. 10 is a front view of a conventional coffee filter.

FIG. 11 is a perspective view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Coffee filter 1a ... Curved edge 1b ... Curved edge 3 ... Small tongue piece 7 ... Notch

Claims (3)

[Utility model registration claims] 1. The method according to claim 1, further comprising:
A coffee filter of a drip filter formed by folding and joining filter paper so that an opening at the top is circular and the bottom is a straight funnel, one of the curved ends overlapped, and the other Characterized in that a small tongue piece protruding from the curved end side of the filter is protruded. 2. By expanding the opposite curved edges,
A coffee filter of a drip filter formed by folding and joining filter paper so that an opening at the top is circular and the bottom is a straight funnel, one of the curved ends overlapped, and the other A coffee filter characterized by forming a notch recessed from a curved end side of the filter. 3. By expanding the opposite curved edges,
A coffee filter of a drip-type filter formed by folding and joining filter papers so that a top end is circular and a bottom has a straight funnel shape, wherein the overlapped curved end has at least a longitudinal direction. A coffee filter characterized by having slightly different curved shapes so as not to coincide with each other in a certain range.