JPS607615Y2 - filter - Google Patents

Description

[Detailed description of the invention] This invention has a pouring hole in the center of the board, and a pair of supporting leg pieces extending symmetrically from both edges of the board through the bending line so as to sandwich the pouring hole. The invention also relates to an improved idea for a filter that is integrally formed by pasting the opening edge of a filter paper bag on the back side of a substrate. An object of the present invention is to provide a filter in which a substance is contained and the opening thereof is removably adhesively sealed.

The filter according to this invention relates to a filter that extracts coffee liquid, that is, filtrate, in a drip method by pouring hot water onto a material to be extracted, such as coffee powder, and is particularly suitable for coffee filtration. The present invention relates to an improvement in a filter that can be used once and then discarded, which is convenient for obtaining a small amount of coffee for two people.

Attach a filter paper bag to the back of the board that has already opened a spout in the center, bend the supporting leg pieces extending on both sides of the board to stand up, and pour coffee powder or other material to be extracted into the opened filter paper bag. For example, the idea of pouring coffee into the pouring hole and extracting the filtrate (coffee liquid) was made in 1986-27.
This is known from the No. 03 invention.

This known device can be used only once, and consists of a substrate, supporting leg pieces that support the substrate on the rim of a cup, etc., and a filter paper bag. The liquid is extracted by pouring the appropriate amount into the filter paper bag and pouring hot water. Therefore, in this known device, the material to be extracted is not specified, but even if it is a filter for one person. It is a time-consuming process that requires measuring and inputting the amount for each year.

The present invention focuses on the characteristics of this disposable filter, and uses it by sealing a predetermined amount of coffee powder or other material to be extracted that matches the capacity of the filter in a filter paper bag. In this case, it is an object of the present invention to provide a filter that can always extract a filtrate such as coffee liquid at an ideal concentration by simply pouring hot water after opening a filter paper bag.

Hereinafter, the features of this invention will be explained with reference to the illustrated embodiments. 1 is a substrate made of a sheet-like material having the required rigidity, such as cardboard or plastic sheet; 2 is a substrate of this substrate; Support leg pieces extend symmetrically and integrally on both edges via bending lines 3, 3, respectively, 4 is a spout formed in the center of the board, and 5 is a spout surrounding the spout on the back side of the board. This is a filter paper bag with the opening edges glued together.

In this embodiment, the substrate 1 and the supporting leg pieces 2 provided on both sides of the substrate 1 are integrally formed by cutting out a rectangular sheet material, and are further bent at the boundary between the substrate and the supporting leg pieces 2. By arranging line 3, it is possible to separate both.

The pouring hole 4 opened in the center of the substrate is formed by making a notch to match the shape of the pouring hole when cutting out the substrate and the supporting leg pieces.

On the other hand, the filter paper bag 5 is made of filter paper such as viscose paper, and has two adhesive pieces 7, 7 extending from the opening edge 6 of the case body, and these adhesive pieces are brought into contact with the back surface of the substrate. It can be attached by bonding the peripheral edge 8 with adhesive or the like.

Then, the opening edges 6 are brought into contact with each other on their inner peripheral surfaces, and are releasably joined by adhesive or pressure bonding between filter papers to close the opening, and a predetermined amount of coffee powder or other to-be-extracted material 9 is placed inside the bag. It is designed to enclose the following.

In the figure, 10.10 is each end edge 11.1 of both supporting leg pieces 2, 2.
A notch formed in a U-shape near 1, 12.
Reference numeral 12 designates a tongue-shaped engagement piece cut and raised from the support leg piece by forming this notch.

The filter of the present invention is constructed as described above, and in use, first, the opening edge 6 of the filter paper bag 5 facing the pouring port 4 of the substrate 1 is opened by pushing open with a finger, and the filter is housed inside. After exposing the material to be extracted 9, the support leg pieces 2.2 extending from both edges of the substrate 1 are bent downward about the bending lines 3, 3, respectively, to stand up in a concave shape.

After that, as shown in FIG. 4, each end edge 11, 11 of both support leg pieces 2, 2 is brought into contact with the edge of a container such as a cup 13 from the outside, and the tongue-shaped engaging pieces 12, 12 are pushed inward. In this state, insert the engagement piece 12.12 into the inside of the cup,
Upper end 14.1 of U-shaped cutout 10.10
4 is brought into contact with the edge of the cup to place and fix the support leg piece 2.2 on the cup.

After setting it on the cup in this manner, hot water is poured through the spout 4 onto the material to be extracted such as coffee powder stored in the filter paper bag 5, and the extracted liquid is directly received in the cup.

The filter of the present invention is used as described above, and the filter paper bag 5
Since a fixed amount of coffee powder, etc. is sealed in advance, if you select the cup, etc. to be used, you can always obtain an extract of a constant concentration by pouring the appropriate amount of hot water into the cup. It is convenient to use because it eliminates the need to transfer coffee powder, etc. to a filter paper bag and weigh it as in the past.

In addition, since the filter of the present invention seals the material to be extracted in a filter paper bag in advance, there is a risk of deterioration due to exposure to the outside air, but when handling it as a product, the filter of the present invention must be airtight. It can be handled by enclosing it in a suitable packaging bag.

At this time, for example, when vacuum packaging the inside of the packaging bag, the opening of the filter paper bag is closed, so the contents are not vacuum-sucked, and only the air inside the bag is drawn out through the filter paper. When a packaging method is used, the filter of the present invention is further advantageous.

It is desired that the adhesive at the opening of the filter paper bag be so weak that it can be easily peeled off with a fingertip and that the filter paper will not be damaged when peeled off.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; Fig. 1 is a perspective view, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is an exploded perspective view, and Fig. 4 shows the state of use. FIG. 1 is a substrate, 2 is a support leg piece, 3 is a bending line, 4 is a spout,
5 is a filter paper bag, 6 is the opening edge of the filter paper bag, and 9 is a material to be extracted such as coffee powder.

Claims (1)

[Scope of utility model registration request] A pouring spout is opened in the center of a board made of a sheet-like material with the required rigidity such as cardboard or plastic sheet, and a pair of supporting leg pieces are inserted from both edges of the board via a bend line so as to sandwich the spout. In the filter, which is integrally formed by extending symmetrically and attaching the opening edge of a filter paper bag to the back of the substrate, the filter paper bag is filled with a substance to be extracted such as coffee powder in advance,
A filter characterized in that the inner circumferential surface of the opening of the filter paper bag is brought into contact with the inner peripheral surface of the filter paper bag and is releasably adhered to enclose the substance to be extracted.