JPS607617Y2 - filter - Google Patents

Description

[Detailed description of the invention] This invention allows coffee, tea, etc. to be poured directly onto the coffee powder, which is placed on a container such as a coffee cup and poured into a filter paper bag, so that the coffee liquid is directly received in the cup. This relates to a filter that can be easily used for filtering.

Conventionally, as a filter that is placed on a container of this kind to receive the extract directly into the container, for example, there is a filter called Utility Model Publication No. 52-2703.
The number idea is known.

This known filter is equipped with a protrusion as a means for placing and fixing it on the container, and the stability is achieved by engaging the protrusion with the edge of the container, but the protrusion is simply attached to the container. Since the filter was only inserted into the rim, there was a risk that if coffee powder was added or hot water was poured into it, the impact would cause the filter to dislodge or cause the filter body to fall over.

In particular, since the shape of the protruding piece is specified, if the diameter of the container differs, the state of engagement will vary, and stable engagement cannot always be obtained.

Especially when the diameter of the container is large compared to the shape of the protruding piece, even if it gets into the rim of the container, it is merely inserted and no adhesion can be achieved with the rim of the container. It will be placed in an extremely unstable condition.

The present invention was devised in view of these deficiencies, and its purpose is to ensure engagement with containers such as cups, and in particular to prevent changes in the diameter of the container and changes in shape. It also maintains a constant engagement force when adding coffee powder, etc.
It is an object of the present invention to provide a filter that can be placed and fixed in a stable state and prevented from falling during pouring.

Hereinafter, the embodiments illustrating the present invention will be described in detail.
The figure is a plan view of the filter according to the present invention, in which 1 is a substrate made of a sheet-like material having the required rigidity, such as a sheet of cardboard or synthetic resin, and 2 is a folded curve 3 on each side of the substrate. , 3, and 4 are filter paper bags integrally attached to the back surface of the substrate.

In this embodiment, the substrate 1 and the supporting leg pieces 2, 2 are integrally formed by cutting out a rectangular sheet from a single sheet.
The substrate and supporting leg pieces are separated by forming folding lines 3, 3, and during the above-mentioned cutting, an opening 5 is formed by making a cut in the center of the substrate.

The filter paper bag 4 is a bag made of filter paper, and is attached to the back surface of the substrate so that the opening edge of the bag surrounds the opening 5.

In the figure, 6 is a notch formed in the end edges 7, 7 of the left and right supporting leg pieces 2, 2, 8 is an engagement piece formed in the center of the end edge by this notch, 9.9 is a locking piece that is symmetrically provided with an engaging piece between them.

In this embodiment, the notches 6 are provided symmetrically with L-shaped notches back to back in the center of the support leg piece, and the locking pieces 9, 9 formed by this have an L-shaped cut in the center part of the supporting leg piece. A small protruding piece 10.10 is provided which projects towards the main body.

The filter of the present invention is constructed as described above, and in use, the support leg piece 2.2, which is in a flat state, is
3 is made to stand approximately perpendicularly to the back side of the substrate 1 with reference to the base line, and while the substrate can be supported horizontally by both support leg pieces, the filter paper bag 4 attached to the back side of the substrate is hung down and opened. Allows coffee powder, etc. to be thrown in from part 5.

After assembling in this way, as shown in FIGS. 2 and 3, place the container 11 such as a cup facing from above, insert the edge of the container into the notch 6 provided in each support leg piece, and insert the engaging piece 8. is placed on the edge of the container so as to sandwich the edge of the container from the inside and outside, with the locking pieces 9 on both sides protruding outside the edge,
Pour hot water into the coffee powder placed in the filter paper bag through the opening.
Make sure the container receives the coffee liquid directly.

As described above, in the filter of the present invention, the notches 6 of both supporting leg pieces 2, 2 are fitted to the edge of the container, and the engaging pieces 8 and 9 engage the container from the inside and outside. Since they are engaged in this manner, they can be placed in an extremely stable state.

Therefore, even if a shock is received when putting coffee powder or the like into the filter paper bag or pouring hot water into it, the bag will not wobble or fall over and can be used with peace of mind.

In particular, in the conventional filter, the protruding pieces simply engage the container, so if it moves sideways on the rim and falls over, or if the diameter of the container changes, the bending support piece may However, in the filter of the present invention, the edge of the container is secured by the engaging piece 8, the locking piece 9, and the locking piece 9.
9 clamps from the inside and outside, preventing lateral movement, effectively avoiding the danger of falling, and even if the diameter of the container changes, the relationship of clamping from the inside and outside is always achieved, so engagement is prevented. It never comes off.

In addition, as in the case of the above embodiment, a small protrusion 1 is provided on the locking pieces 9, 9.
0.10, the container 11 is press-contacted so as to surround the outside edge of the container 11, and is held so as to be substantially opposed to the engaging piece 8, so that a more firm engagement is obtained and stable. We can expect it to be placed.

In carrying out the present invention, a notch 12 is provided near the edge 7 of the support leg piece 2 as shown in FIG. It may also be formed.

In addition, a plurality of folding lines 3 are formed to correspond to changes in the diameter of the container, and support leg pieces 2 and 2 are formed in accordance with the diameter of the container.
It is effective to select the bending position of the support leg piece because the rising angle of the support leg piece is reasonable and stable placement is always obtained.

In addition, if the folding line is made into an arc-shaped line as shown in the figure, the bent portion becomes stiffer and can firmly support the substrate 1 and, in turn, the filter paper bag 4.

In particular, it is effective to form the folding lines in an arc shape in order to strengthen the stiffness of the board and the supporting leg pieces when they are made of cardboard.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view, Fig. 2 is a perspective view illustrating the state of use, Fig. 3 is a partial longitudinal cross-sectional view of the state in which it is placed on a container, and Fig. 4 is a partial longitudinal sectional view of the present invention. The figure is a partial plan view of another embodiment. Symbols: 1 is the substrate, 2 is the support leg piece, 3 is the folding line, 4 is the filter paper bag, 5 is the opening, 6 is the notch, 7 is the edge, 8 is the engagement piece,
9 is a locking piece, and 10 is a small protruding piece.

Claims (2)

[Scope of utility model registration request] (1) The opening edge of a filter paper bag is attached to the back side of a substrate with an opening in the center so as to surround the opening, while the substrate is supported through folded lines on both sides. The leg pieces are extended, and a pair of symmetrical notches are provided on each end edge of both supporting leg pieces to form an engaging piece in the center of the edge and locking pieces on the left and right sides thereof. A filter characterized by: (2) The notch provided on the end edge of the support leg piece is an L-shaped notch, and small protrusions are provided on the left and right locking pieces, as set forth in claim 1 of the utility model registration claim. filter.