DE202014103459U1 - Folded paper filter for infusion drinks - Google Patents

Abstract

Folded paper filter for infusion beverages with a folded edge as the bottom area and each with at least one embossed side area, characterized in that the conical paper filter (1) has at least two embossed lines (4) running towards one another in the direction of the folded edge (2), so spaced apart from the side areas that in the case of folded embossed lines (4), the folded edge (2) as the base area is smaller than that of the unfolded lines (4).

Description

The invention relates to folded paper filters for infusion drinks with a folding edge as a bottom region and in each case at least one embossing seam having side regions.

Known paper filters for infusion drinks, in particular for coffee, are known through a number of publications, at least one side region and the bottom region being connected to one another.

Through the publication DE 680 796 A is a filter bag in cup form similar to known paper cups or paper bags known. In one embodiment, the edges of the blank to be joined, ie the bottom and side wall edges, are covered with a U-shaped paper strip, which is fastened by edge-banding and thus watertightly connects the edges of the blank of the filter bag.

A paper filter with a Bodenfalzlinie is inter alia by the document DE 29 29 251 A1 known as glued two-seam filter bag. One of the trapezoids forming the filter bag has two lateral glue flaps so that components of the glue can enter the brewed coffee.

Through the publication DE 197 17 372 A1 a method for producing a filter, in particular coffee filters, as well as filters is known which have a folding edge in the bottom region and are everted so that the interconnected edge regions are located inside the coffee filter. Such a procedure substantially increases the expense of producing these coffee filters.

The publication EP 1 588 653 B1 includes a paper filter for infusion drinks. This is separated from a folded paper web, wherein the folding edge of the bottom portion of the paper filter is, the side regions each have at least one embossing seam and the embossing teeth of the embossing seam parallel to the fold edge.

The paper filters are limited to use in brewing systems with conical filters.

The specified in the protection claim 1 invention has for its object to simply create a universally applicable folded paper filter for infusion drinks.

This object is achieved with the features listed in the protection claim 1.

The folded paper filters for infusion drinks with a folding edge as the bottom region and each having at least one embossing seam side regions are characterized in particular by their universal use.

For this purpose, the conical paper filter spaced apart from the side areas on at least two in the direction of folding edge mutually running embossed lines, so that when folded embossed lines, the folding edge is smaller than the bottom area than in the unfolded lines.

Paper filters are known to have pores, so that solid particles, for example, remain as coffee grounds in the paper filter and liquids as water penetrate the paper filter, so that the infusion beverage is formed. The folding edge of the paper web is at the same time the bottom area of the paper filter on which the main load of the paper filter lies during its use. Thus, the risk of tearing in the placement and use is largely prevented.

Advantageously, the paper filter has the two mutually extending embossed lines, which can be used as folding edges. Thus, the paper filter is a conical paper filter for unfolded edges and for folded edges can be used as a pointed cone filter. This makes the paper filter universally applicable. For different filter systems so that only one paper filter can be used.

The side areas each have at least one embossing seam, so that the attachment of the superimposed and the paper filter forming partial webs of the paper web is given.

These embossed seams or the folded edges from the embossed lines are applied to the respective filter holder, for example, the coffee machine, so that a risk of tearing of the paper filter at these locations is hardly possible.

Another advantage is that the paper filter is symmetrical, so that an optimal placement of the paper filter in the respective filter holder is possible.

Advantageous embodiments of the invention are specified in the claims 2 to 9.

The embossed lines are according to the embodiment of the protection claim 2 to a point tapered embossed lines, so that when folded embossed lines, the folding edge is a tip as the bottom area.

The embossing teeth of the embossing seam run according to the embodiment of the protection claim 3 parallel to the folding edge as the bottom region and thus obliquely to the side edge. This has the advantage that the Length of the embossing teeth while improving the visual impression of embossing seam is increased, so that a further increase in the strength of the embossing seam is accompanied.

Advantageously, the embossing teeth according to the embodiment of the protection claim 4 have the same length. This gives consistent strength properties over the entire length of the embossing seam.

According to the embodiment of the protection claim 5, the embossing teeth have the same length and the distance of the respective second embossing tooth of the embossing seam from the side edge of the paper filter is smaller or larger than the distance of the respective first embossing tooth of the embossing seam. This achieves the visual impression of a zipper. In conjunction with the parallel progression of the embossing teeth to the bottom area, the possible tear-in edge is increased, so that a further increase in strength is present.

The folding edge and each both the side edge and the embossed line of the paper filter include according to the embodiment of the protection claim 6 an angle equal to / greater than 90 ° and less than 180 °. Furthermore, the folding edge of the opposite edge of the paper filter is rectilinear or arcuate. With these embodiments, the user paper filter for known devices for pouring drinks are provided. The angle between the folded edge and in each case both the side edge and the embossed lines of the paper filter advantageously correspond to those of the filter holders, so that a firm hold in the filter holder is given.

By rounded or bevelled corner regions between the side edge and the folding edge opposite edge of the paper filter according to the embodiment of the protection claim 7, the distance of the paper filter against non-rounded or bevelled corner areas can be reduced, so that the waste is reduced when separating the paper filter from the paper web.

In the open state of the paper filter according to the embodiment of the protection claim 8 is funnel-shaped, so that a bag is present. Thus, the paper filter can be easily used in known filter receptacles, for example, the coffee machines.

Conveniently, the paper filter according to the embodiment of the protection claim 9, both a conical and a pointed paper filter.

An embodiment of the invention is illustrated in principle in the drawing and will be described in more detail below.

It shows the

1 a folded paper filter for infusion drinks.

A folded paper filter 1 for infusion drinks essentially has a folding edge 2 as floor area, embossed seams 3 on the side panels and two embossed lines 4 ,

The 1 shows a folded paper filter for infusion drinks in a schematic representation.

The paper filter 1 for infused drinks is isolated from a folded paper web. The paper filter 1 as for example coffee filter for coffee machines has known pores, so that solid particles as a coffee grounds in the paper filter 1 remain and the liquid as water the paper filter 1 permeates, so that the coffee is produced as an infusion beverage.

The folding edge 2 the folded paper web 5 is at the same time the bottom area of the paper filter 1 , The side areas of the paper filter 1 each have an embossing seam 3 with embossing teeth on. The embossing teeth of the embossing seam 3 run parallel to the fold edge 2 , The embossing teeth have the same length. The distance between the second embossing tooth of the embossing seam 3 from the side edge of the paper filter 1 is smaller than the distance of the respective first embossing tooth of the embossing seam 3 ,

The folding edge 2 and each side edge of the paper filter 1 include an angle of, for example, 130 ° and the folding edge 2 opposite edge of the paper filter 1 runs arcuately, leaving a known shape of the paper filter 1 is available. The paper filter 1 is funnel-shaped in the open state. The corner of the side edge and the folding edge 2 opposite edge of the paper filter 1 is rounded.

The conical paper filter 1 further comprises spaced apart from the side areas at least two in the direction of folding edge 2 mutually running embossed lines 4 on, so with folded embossed lines 4 the fold edge 2 as floor area smaller than with the unfolded lines 4 is. The embossed lines 4 to a tip 5 converge, so when folded embossed lines 4 a pointed cone filter is present.

This fits the paper filter 1 in the filter holders of known coffee machines.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 680796 A [0003]
• DE 2929251 A1 [0004]
• DE 19717372 A1 [0005]
• EP 1588653 B1 [0006]

Claims (9)

Folded paper filter for infusion drinks with a folding edge as a bottom region and in each case at least one embossing seam having side regions, characterized in that the conical paper filter ( 1 ) spaced from the side regions at least two in the direction of folding edge ( 2 ) embossed lines ( 4 ), so that when folded embossed lines ( 4 ) the folding edge ( 2 ) as the bottom area smaller than in the unfolded lines ( 4 ). Paper filter according to protection claim 1, characterized in that the embossed lines ( 4 ) to a peaked embossed lines ( 4 ), so that when folded embossed lines ( 4 ) the folding edge ( 2 ) as a ground area a tip ( 5 ). Paper filter for protection claim 1, characterized in that the embossing teeth of the embossing seam ( 3 ) parallel to the fold edge ( 2 ). Paper filter for protection claim 3, characterized in that the embossing teeth have the same length. Paper filter for protection claim 3, characterized in that the embossing teeth have the same length and that the distance of the respective second embossing tooth of the embossing seam ( 3 ) from the side edge of the paper filter ( 1 ) smaller or larger than the distance of the respective first embossing tooth of the embossing seam ( 1 ). Paper filter according to protection claim 1, characterized in that the folding edge ( 2 ) and both the side edge and the embossed line ( 4 ) of the paper filter ( 1 ) include an angle equal to / greater than 90 ° and less than 180 ° and that the folding edge ( 2 ) opposite edge of the paper filter ( 1 ) is rectilinear or arcuate. Paper filter for protection claim 6, characterized in that in each case the corner region of the side edge and the folding edge ( 2 ) as the bottom area opposite edge of the paper filter ( 1 ) is rounded or bevelled. Paper filter for protection claim 1, characterized in that in the open state of the paper filter ( 1 ) is funnel-shaped. Paper filter for protection claim 1, characterized in that the paper filter ( 1 ) is both a conical and a pointed paper filter.

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