JP7417318B1 - Filters and beverage extractors - Google Patents

Abstract

An object of the present invention is to provide a filter and a beverage extractor that can more easily extract and pour a beverage. A filter 1 is removably attached to an opening 30 of a container 3 containing a substance to be extracted and a liquid, and includes a substantially cylindrical frame 10 formed of an elastic member and a frame 10. It is arranged in the enclosed area R, and is made of porous ceramic that allows the beverage extracted from the material to be extracted in the container 3 to flow out to the outside, and prevents the material to be extracted from flowing out, and is removable from the frame part 10. A filter section 20 is provided. [Selection diagram] Figure 1

Description

FIELD OF THE INVENTION The present invention relates to filters and beverage brewers.

2. Description of the Related Art Conventionally, devices for brewing beverages such as coffee and tea have been known. For example, Patent Document 1 describes a container that receives tea leaves or liquid, a concave filter that is secured to the edge of the container, and has a plurality of openings that prevent tea leaves from flowing out and allow tea extract to flow. A device equipped with this is known.

Japanese Patent Application Publication No. 2008-246187

In the device of Cited Document 1, a beverage extracted from tea leaves can be provided by placing tea leaves and hot water in a container and attaching a concave filter to the edge of the container. The size and shape of the filter must be accurately matched to the size and shape of the container to prevent the filter from falling off.

An object of the present invention is to provide a filter and a beverage extractor that can more easily extract and pour beverages.

The present invention includes a frame portion that is removably attached to an opening of a container that accommodates a substance to be extracted and a liquid, and is formed of an elastic member, and a frame portion that is disposed in a region surrounded by the frame portion and that is disposed within the container. The present invention relates to a filter including a porous filter portion that allows a beverage extracted from the extracted material to flow out to the outside and prevents the extracted material from flowing out.

The frame portion has a substantially cylindrical shape and has a flange-shaped mounting portion extending radially outward.

The filter section is made of porous ceramic.

The filter section is removably attachable to the frame section.

The filter part has a substantially circular shape in plan view when the frame part is attached to the container, and has a pouring part tapering outward in the radial direction, and is formed on the opposite side of the pouring part. It has an opening.

The present invention also relates to a beverage extractor comprising the filter, and a container that accommodates a substance to be extracted and a liquid and has an opening to which the filter can be attached.

According to the present invention, it is possible to more easily extract and pour a beverage.

FIG. 1 is a perspective view showing a beverage extractor according to an embodiment of the present invention. It is a side view showing a filter concerning one embodiment of the present invention. FIG. 1 is a plan view showing a filter according to an embodiment of the present invention. It is a bottom view showing a filter concerning one embodiment of the present invention. FIG. 4 is a cross-sectional view of the beverage container shown in FIG. 3 taken along line VV. FIG. 1 is an exploded perspective view showing a filter according to an embodiment of the present invention. It is a top view showing the filter part of the filter concerning one embodiment of the present invention. It is a bottom view showing a filter part of a filter concerning one embodiment of the present invention. It is a top view showing the frame of the filter concerning one embodiment of the present invention. FIG. 2 is a cross-sectional view showing a beverage brewer with a container containing a substance to be extracted and a liquid. FIG. 2 is a schematic diagram showing a state in which a beverage extracted from a material to be extracted is poured into a beverage container using a beverage extractor.

Embodiments of the present invention will be described below. However, the present invention is not limited to the following embodiments.

A filter 1 according to this embodiment will be explained with reference to FIG. 1. FIG. 1 is a perspective view of a beverage brewer 100. In addition, in FIG. 1, the container 3 is shown by a two-dot chain line.

The filter 1 of this embodiment is a device that is attached to a container 3 that contains a substance to be extracted and a liquid, and is used to pour the beverage extracted in the container 3 into a beverage container or the like. Examples of the material to be extracted include coffee beans and tea leaves. Beverages include coffee extracted from coffee beans, tea extracted from tea leaves, and the like.

The container 3 has, for example, a cylindrical shape with a bottom, and accommodates the material to be extracted and the liquid. Examples of the liquid include hot water, which is an extraction solvent for coffee beans and tea leaves. The filter 1 is attached to the opening 30 of the container 3. The filter 1 and the container 3 to which the filter 1 is attached constitute a beverage extractor 100 that extracts a beverage from a substance to be extracted and pours the extracted beverage into a beverage container or the like.

The configuration of the filter 1 will be explained with reference to FIGS. 1 to 9. FIG. 2 is a side view of the filter 1. FIG. 3 is a plan view of the filter 1. FIG. 4 is a bottom view of the filter 1. FIG. 5 is a sectional view of the filter 1 shown in FIG. 3 taken along line VV. FIG. 6 is an exploded perspective view of the filter 1. FIG. 7 is a plan view of the filter section 20. FIG. 8 is a bottom view of the filter section 20. FIG. 9 is a plan view of the frame portion 10.

As shown in FIG. 1, the filter 1 includes a frame portion 10 that is attached to the container 3, and a filter portion 20 that filters the beverage. In the following description, the vertical direction of the filter 1 is defined as the vertical direction when the filter 1 is attached to the container 3.

The frame portion 10 is removably attached to the opening 30 of the container 3, and is a portion where the filter portion 20 is arranged. The frame portion 10 is formed of an elastic member and is elastically deformable as a whole. Examples of the elastic member forming the frame portion 10 include natural rubber, synthetic rubber, and the like. The elastic member forming the frame portion 10 of this embodiment is silicone rubber.

The frame portion 10 is cylindrical as shown in FIGS. 5 and 6, and connects a large diameter portion 11, a small diameter portion 12 having a smaller diameter than the large diameter portion 11, and connects the large diameter portion 11 and the small diameter portion 12. A connecting portion 13 is provided. The large diameter portion 11 is located above the small diameter portion 12 when the frame portion 10 is attached to the container 3. The connecting portion 13 is located between the large diameter portion 11 and the small diameter portion 12.

The large diameter portion 11 will be explained. The large diameter portion 11 has an annular shape as a whole, as shown in FIGS. 5, 6, and 9, and its outer peripheral surface 111 is formed in a tapered shape that increases in diameter as it moves away from the connecting portion 13. As shown in FIG. 9, the opening 110 of the large diameter portion 11 has a shape in which a portion of the edge protrudes radially outward in plan view. A fitting groove portion 113 into which the filter portion 20 is fitted, and a tapered surface 114 are formed on the inner circumferential surface 112 of the large diameter portion 11 .

The fitting groove portion 113 is an annular groove formed all around the inner peripheral surface 112 of the large diameter portion 11, as shown in FIGS. 5, 6, and 9. The fitting groove portion 113 fits into a fitting protrusion 24 of the filter portion 20, which will be described later. That is, the filter section 20 is arranged in a region R surrounded by the inner peripheral surface 112 where the fitting groove section 113 is formed.

The tapered surface 114 is a surface formed on the upper end side of the inner circumferential surface 112 of the large diameter portion 11 (the side opposite to the connecting portion 13 in the axial direction of the frame portion 10). The tapered surface 114 forms the upper surface of the filter 1 with the frame 10 attached to the container 3. The tapered surface 114 has a tapered shape that increases in diameter as it moves away from the small diameter portion 12.

Further, the tapered surface 114 is formed with a pouring portion 115 whose width decreases toward the outside in the radial direction in a plan view. That is, the pouring portion 115 has a shape that tapers outward in the radial direction of the large diameter portion 11 . The outer circumferential surface 111 of the portion where the pouring portion 115 is formed is formed to protrude radially outward when viewed from below. With this configuration, the beverage flowing out from inside the container 3 through the filter section 20 can be smoothly guided to the outside.

The small diameter portion 12 will be explained. The small diameter portion 12 is a portion that is inserted into the opening 30 of the container 3 when the frame portion 10 is attached to the container 3. The small diameter portion 12 is formed in an annular shape with a smaller diameter than the large diameter portion 11 .

The small diameter portion 12 is formed so that its inner diameter and outer diameter are substantially constant in the axial direction of the frame portion 10 . That is, the outer circumferential surface 121 and the inner circumferential surface 122 of the small diameter portion 12 are surfaces substantially parallel to the axial direction of the frame portion 10. The dimensions of the opening 120 of the small diameter section 12 are smaller than the opening 110 of the large diameter section 11 and the filter section 20.

The small diameter portion 12 has a flange-shaped mounting portion 123 extending radially outward of the frame portion 10 from the outer peripheral surface 121 thereof. The mounting portion 123 elastically contacts the inner circumferential surface 32 of the container 3 in a state in which the frame portion 10 is mounted on the container 3.

The length L1 of the mounting portion 123 in the radial direction of the frame portion 10 is equal to or less than the distance L2 from the surface of the mounting portion 123 on the connecting portion 13 side to the surface of the connecting portion 13 on the small diameter portion 12 side in the axial direction of the frame portion 10. It is preferable that there be. In this embodiment, the length L1 of the mounting portion 123 and the interval L2 are formed to be approximately equal. Further, the length L1 of the mounting portion 123 and the thickness T1 of the mounting portion 123 (width of the mounting portion 123 in the axial direction of the frame portion 10) are adjusted within a range in which the mounting portion 123 can be bent. With this configuration, when the filter 1 is inserted into the container 3 having the opening 30 larger than the diameter up to the outer circumferential surface 121 of the small diameter portion 12, the insertion of the frame 10 into the opening 30 causes the The mounting portion 123 is bent toward the large diameter portion 11 by the upper end portion 31 . In this state, the mounting portion 123 is pressed against the inner circumferential surface 32 of the container 3 by its own restoring force directed outward in the radial direction, and comes into close contact with the inner circumferential surface 32 of the container 3.

The connecting portion 13 is formed in an annular shape in a plan view at the inner lower portion of the large diameter portion 11 . The connecting portion 13 connects the lower end of the large diameter portion 11 and the upper end of the small diameter portion 12, and is a portion on which the filter portion 20 is placed. The connecting portion 13 has a substantially circular shape in which a portion of the circumference protrudes outward in the radial direction when viewed from above.

The filter section 20 has a disk shape as a whole as shown in FIG. 6, and has a substantially circular shape in plan view as shown in FIG. Note that in this specification, a substantially circular shape refers to a circle and a shape close to a circle, and includes, for example, an ellipse, an ellipse, a circular shape in which a part of the circumference protrudes outward in the radial direction, and the like. The filter section 20 of this embodiment has a shape corresponding to the opening 110 in the large diameter section 11 of the frame section 10. That is, the filter portion 20 has a substantially circular shape in which a part of the circumference protrudes outward in the radial direction when viewed from above.

The filter section 20 has an outline having a size and shape corresponding to the region R of the large diameter section 11 , and is arranged in a region R surrounded by the inner peripheral surface 112 of the frame section 10 . Note that the dimensions of the filter section 20 are larger than the opening 120 of the small diameter section 12.

The filter section 20 according to this embodiment can be attached to and detached from the frame section 10. Specifically, the filter section 20 is not fixed to the frame section 10, and can be placed in the region R within the large diameter section 11 by elastically deforming the frame section 10, and can be arranged in the region R within the large diameter section 11. It is possible to take it out to the outside of 11.

The filter section 20 is made of a porous ceramic filter. It is preferable that the median pore diameter of the micropores of the filter section 20 is 300 μm to 430 μm. The size, porosity, etc. of the micropores of the filter section 20 are appropriately set depending on the substance to be extracted and the type of beverage. With the frame 10 attached to the container 3, the filter section 20 allows the beverage extracted from the extracted material in the container 3 to flow out to the outside, and prevents the extracted material from flowing out.

The thickness of the filter section 20 is preferably 3 mm to 4 mm from the viewpoint of maintaining the strength of the filter section 20 and smoothing the flow of the beverage from the inside of the container 3 to the outside.

The filter section 20 includes a curved upper surface 21 slightly curved inward, a bottom surface 22 having an arcuate shape slightly bulging downward, a pouring section 23, a fitting protrusion 24, and an opening 25. It has a rib part 26.

The pouring portion 23 has a shape that tapers outward in the radial direction of the filter portion 20 . That is, the pouring part 23 is a part where a part of the circumference of the filter part 20 in a plan view projects outward in the radial direction. The pouring portion 23 serves as a flow path through which the beverage flowing from the inside of the container 3 to the outside passes when the filter 1 is attached to the container 3.

The fitting protrusion 24 is an annular portion that protrudes radially outward from the periphery of the filter portion 20 . The fitting protrusion 24 fits into a fitting groove 113 formed on the inner circumferential surface 112 of the frame 10. The pouring part 23 of the filter part 20 is arranged at a position corresponding to the pouring part 115 of the frame part 10, with the fitting protrusion 24 fitted into the fitting groove 113.

The opening 25 is formed on the side opposite to the pouring part 23. Specifically, as shown in FIG. 7, the opening 25 is a portion that is formed on the opposite side of the pouring portion 23 across the center of the top surface 21 in plan view, and penetrates from the top surface 21 to the bottom surface 22. Further, as shown in FIGS. 3 and 5, the opening 25 connects the center of the upper surface 21 and the opposite side of the pouring part 115 in a plan view when the filter part 20 is arranged in the region R of the frame part 10. 13. Since the opening 25 is formed in the filter section 20, the space inside the container 3 communicates with the outside via the opening 120 of the small diameter section 12 and the opening 25. Thereby, the substance to be extracted and the liquid can be added into the container 3 from the opening 25 while the filter 1 is attached to the container 3. Note that, as shown in FIG. 3, the opening 120 of the small diameter portion 12 is blocked by the filter portion 20 in a portion other than the portion where the opening 25 is located in a plan view.

The rib portion 26 is formed to protrude downward from the bottom surface 22. The rib portion 26 is formed around the opening 25 on the bottom surface 22 or near the peripheral edge of the filter portion 20 . With the filter section 20 disposed in the region R of the large diameter section 11 , the rib section 26 formed near the peripheral edge of the filter section 20 comes into contact with the connecting section 13 .

Next, an example of how the filter 1 is used will be described with reference to FIGS. 10 and 11. FIG. 10 is a cross-sectional view showing a beverage extractor 100 in which tea leaves 4 and a liquid to be extracted are housed in a container 3. FIG. 11 is a schematic diagram showing how tea, which is a beverage extracted from tea leaves 4 using the beverage extractor 100, is poured into the beverage container 6. In FIGS. 10 and 11, an example in which the extracted material is tea leaves will be described.

First, tea leaves 4 and hot water are poured from the opening 30 into a bottomed cylindrical container 3 without the filter 1 attached thereto. Next, the filter 1 in which the filter part 20 is arranged in the region R of the frame part 10 is attached to the container 3 containing the tea leaves 4 and hot water. Specifically, the small diameter portion 12 of the filter 1 is inserted into the opening 30 of the container 3. At this time, as the small diameter part 12 is inserted into the opening 30, the collar-shaped attachment part 123 of the small diameter part 12 is bent upward (towards the large diameter part 11) by the upper end 31 and inner peripheral surface 32 of the container 3. . In this state, the mounting portion 123 is pressed against the inner circumferential surface 32 of the container 3 by its own restoring force directed outward in the radial direction, and comes into close contact with the inner circumferential surface 32 of the container 3. Note that the tea leaves 4 and hot water may be poured into the container 3 through the opening 25 of the filter section 20 after the filter 1 is attached to the container 3 as shown in FIG.

After a predetermined period of time for extracting the beverage from the tea leaves 4, the beverage extractor 100, which includes the filter 1 and the container 3 to which the filter 1 is attached, is tilted, and the beverage in the container 3 is poured into the beverage container 6. . Specifically, as shown in FIG. 11, the beverage extractor 100 is tilted so that the pouring parts 115 and 23 of the filter 1 are located on the lower side, and the beverage is poured into the beverage container 6. At this time, as shown in FIG. 11, the beverage passes from inside the container 3 through the micropores of the filter section 20 and is poured into the beverage container 6 via the pouring section 23. On the other hand, the tea leaves 4 cannot pass through the micropores, are blocked by the bottom surface 22 of the filter section 20, and remain within the container 3. Thereby, only the beverage can be poured from the container 3 into the beverage container 6. Furthermore, even when the beverage extractor 100 is tilted, the mounting portion 123 is elastically in close contact with the inner circumferential surface 32 of the container 3 due to its own radially outward restoring force. The filter 1 can be prevented from falling off. Furthermore, when the amount of beverage in the container 3 becomes low, since the outside and the inside of the container 3 are communicated through the opening 25 of the filter section 20, hot water or tea leaves can be easily added through the opening 25.

According to the filter 1 and the beverage extractor 100 according to this embodiment, the following effects are achieved.

(1) The filter 1 is removably attached to the opening 30 of the container 3 containing the substance to be extracted and the liquid, and the frame 10 is formed of an elastic member and the area R surrounded by the frame 10 A porous filter section 20 is arranged in the container 3 to allow the beverage extracted from the material to be extracted in the container 3 to flow out, and to prevent the material to be extracted from flowing out. As a result, the frame portion 10 existing around the filter portion 20 having a filtration function is formed of an elastic member that can follow the shape. Beverage can be poured without the filter part 20 falling off from the container 3 even if they are not aligned. Moreover, it is possible to extract and pour beverages by attaching the container 3 to more containers 3 having different sizes and shapes. Therefore, the beverage can be extracted and poured more easily.

(2) The filter 1 has a substantially cylindrical frame portion 10, and a collar-shaped mounting portion 123 that extends outward in the radial direction and elastically contacts the inner circumferential surface 32 on the opening 30 side of the container 3. The configuration has the following. Thereby, when the container 3 is tilted and the beverage in the container 3 is poured into the beverage container 6 etc., it is possible to more reliably prevent the filter 1 from falling off from the container 3.

(3) The filter section 20 of the filter 1 is made of porous ceramic. As a result, the liquid drips through the fine pores of the ceramic, making the taste of the liquid milder. For example, by using it to extract tea or coffee, it is possible to easily provide tea or coffee with better taste and flavor.

(4) The filter section 20 of the filter 1 is configured to be detachable from the frame section 10. As a result, the filter section 20 can be removed from the frame section 10 after being used for extracting beverages, making it easier to remove substances to be extracted that have adhered to the filter section 20 when cleaning the filter 1, making cleaning work easier. become.

(5) When the filter part 20 of the filter 1 is placed in the region R of the frame part 10 attached to the container 3, the pouring part has a substantially circular shape in plan view and tapers outward in the radial direction. 23, and an opening 25 formed on the opposite side to the pouring portion 23. Thereby, the liquid to be extracted or the extraction solvent can be added from the opening 25 while the filter 1 is attached to the container 3, improving convenience.

(6) The beverage extractor 100 is configured to include a filter 1 and a container 3 that accommodates a substance to be extracted and a liquid and to which the filter 1 can be attached to the opening 30 of the container 3. As a result, the frame portion 10 existing around the filter portion 20 having a filtration function is formed of an elastic member that can follow the shape. Beverage can be poured without the filter part 20 falling off from the container 3 even if they are not aligned. Therefore, the beverage can be extracted and poured more easily.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be modified as appropriate.

In the above embodiment, the filter section 20 is removably attached to the frame section 10, but the filter section 20 may be fixed to the frame section 10.

In the embodiment described above, the filter section 20 has a substantially circular shape in plan view, but the shape is not particularly limited. For example, the filter section 20 may have a polygonal shape in plan view.

1 Filter 3 Container 10 Frame 20 Filter 30 Opening 100 Beverage extractor R region

Claims (5)

a substantially cylindrical frame formed of an elastic member and removably attached to the opening of a container containing the substance to be extracted and the liquid;
a porous filter part that is arranged in a region surrounded by the frame part, allows the beverage extracted from the to-be-extracted substance in the container to flow out to the outside, and prevents the outflow of the to-be-extracted substance; Prepare ,
The frame portion is
an annular large diameter part in which the filter part is arranged;
a small diameter part having a diameter smaller than the large diameter part and which is a part to be inserted into the opening of the container when the frame part is attached to the container;
The small diameter portion extends outward in the radial direction of the filter, and has a bendable flange-like mounting portion toward the large diameter portion . The filter according to claim 1, wherein the filter section is made of porous ceramic. The filter according to claim 1, wherein the filter section is removably attached to the frame section. The filter part is approximately circular in plan view when the frame part is attached to the container,
a pouring portion tapering outward in the radial direction;
The filter according to claim 1, further comprising an opening formed on a side opposite to the pouring part. The filter according to any one of claims 1 to 4 ,
A beverage extractor comprising: a container that accommodates a substance to be extracted and a liquid, and the opening of which can be fitted with the filter.

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