Filter
A dual-purpose filter with locking members adapts to both small and large diameter cups, ensuring optimal coffee extraction quality by minimizing contact with the cup's inner surface.
Patent Information
- Application Number
- JP2023126603
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-07-14
- Publication Date
- 2025-01-24
AI Technical Summary
Existing coffee filters are limited in their adaptability to different cup sizes, failing to provide a seamless fit and optimal extraction quality across both small and large diameter cups.
A dual-purpose filter design featuring a pair of locking members that allow secure attachment to both small and large diameter cups, ensuring minimal contact with the cup's inner surface for improved extraction quality.
Enables the use of a single filter for both small and large diameter cups, maintaining high extraction quality without a savory taste, even when the filter is tapered.
Smart Images
Figure 2025013076000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a filter for extracting coffee or the like.
[0002] When drinking coffee, mugs with small openings and teacups with large openings are used, and filters of different sizes are attached and used accordingly. Summary of the Invention [Problem to be solved by the invention]
[0003] An object of the present invention is to provide a filter for extracting coffee or the like that can be used with both a small-diameter cup and a large-diameter cup.
[0004] This invention provides a filter comprising an extraction material storage body made of a water-permeable filter sheet and filled with extraction material, and a pair of mounting members for a cup attached to the outer surfaces of both sides of the extraction material storage body, each of the mounting members having a pair of locking portions, one of the locking portions protruding outward from the other of the locking portions, and the other of the locking portions of each of the mounting members being opened in the horizontal direction, allowing the filter to be mounted on not only small diameter cups but also large diameter cups.
[0005] The filter having the above-mentioned configuration can be attached to a small diameter cup when the other locking portion of each of the mounting members is in a closed state, and can be attached to a large diameter cup when the other locking portion is in an open state. Effect of the Invention
[0006] According to the present invention, a filter for extracting coffee or the like can be obtained which can be used for both a small-diameter cup and a large-diameter cup. [Brief description of the drawings]
[0007] [Figure 1] Front view of the filter of this invention [Diagram 2] Illustrative diagram of how the filter of this invention is attached [Diagram 3] Illustrative diagram of how the filter of this invention is attached [Figure 4] Schematic diagram of the filter of this invention when extracted DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0008] FIG. 1 is a front view of the filter of the present invention, and FIGS. 2 and 3 are explanatory diagrams for installing the same. The filter 1 is made of a water-permeable filter sheet and is composed of an extraction material container 2 which is open at the top and tapered at the bottom and is filled with extraction material, and an attachment member 3 made of cardboard for a pair of cups of the same shape attached to both sides of the extraction material container 2.
[0009] Each of the mounting members 3 has a fixing portion 5, the upper inner surface of which is fixed to the upper central outer surface of the brewing material container 2, an extension portion 7 extending downward from the fixing portion 5, and a pair of locking portions 8, 9 protruding outward from both sides of the extension portion 7, and the lower edge of each of the locking portions 8, 9 is provided with locking recesses 11, 12 for locking the upper edge of the cup at the same position as the outer end positions of the locking portions 8, 9. The locking portion 9 extends farther from the extension portion 7 than the locking portion 8, and accordingly the locking recess 12 is provided at a position farther from the extension portion 7 than the locking recess 11.
[0010] The filter 1 is attached to the cup by engaging the engagement recesses 11, 12 with the upper edge of the cup. Figure 2 shows the filter attached to a mug 10 with a small opening diameter, and Figure 3 shows the filter attached to a teacup 20 with a large opening diameter.
[0011] In the case of the mug 10, the fastening parts 9 are attached to the mounting members 3 on both sides with almost no opening, whereas in the case of the teacup 20, one fastening part 9 is provided on the mounting members 3 on both sides so as to protrude outward from one fastening part 8 of the other, and the other fastening part 9 is opened at the folding line position 12 when attached. In this way, the filter 1 can be used for both the mug 10 with a small opening diameter and the teacup 20 with a large opening diameter. Also, the fastening parts 9 can be opened at an appropriate angle depending on the opening diameter of the teacup 20.
[0012] As shown in Figure 4, the locking portions 8, 9 of each mounting member 3 are attached horizontally to the lower portion of the extraction material storage body 2, and locking recesses 11, 12 are provided on their lower edges, so that the locking recesses 11, 12 are located below the filter 1.
[0013] As a result, the filter 1 is attached at a high position in the cup 30, and the lower part of the brewing material container 2 is positioned high inside the cup 30, and when coffee is extracted, the lower end 15 of the brewing material container 2 does not come into contact with the extracted coffee, or the contact area is small, making it possible to extract delicious coffee without unpleasant flavors. Also, because the brewing material container 2 is tapered, the coffee extraction area is small, which also makes it possible to extract delicious coffee without unpleasant flavors. [Explanation of symbols]
[0014] 1 Filter 2 Extraction material storage body 3 Mounting material 8 One of the locking parts 9 The other locking part 11 Locking recess 12 Locking recess
Claims
[Claim 1] The filter is composed of a water-permeable filter sheet, a brewing material container filled with brewing material, and a pair of attachment members for a cup attached to both outer surfaces of the brewing material container. The filter is characterized in that each of the mounting members has a pair of locking portions, one of which protrudes outward from the other of the locking portions, and the other of the locking portions of each of the mounting members can be opened horizontally, allowing the filter to be mounted on both small diameter cups and large diameter cups.