JP3174808U - Tea strainer filter - Google Patents

Abstract

Disclosed is a tea strainer filter that can wash off fine tea leaves adhering to the peripheries of the front and back surfaces of a minute hole by simple washing to prevent sticking.
A plurality of micro holes 5 are formed on a side peripheral surface 3 and a bottom surface 4 of a stainless steel container whose upper surface side is open, and the peripheries of the front and back surfaces of each micro hole 5 and the periphery thereof are non-concave and flat. It was formed into a planar shape.
[Selection] Figure 1

Description

  The present invention relates to a tea strainer filter used for drinking, for example, green tea, black tea, and other various types of tea, and in particular, the peripheral edges of the front and back surfaces of the micropores corresponding to each mesh of the filter and the periphery thereof. The present invention relates to a tea strainer filter that eliminates fine irregularities and rinses away with a simple water wash so that fine debris of tea leaves do not adhere to the periphery of the micropores.

  For example, a metal filter 11 is known as a tea strainer filter used when drinking green tea or black tea. The metal filter 11 is formed, for example, by forming a sheet-like net by knitting a wire 12 made of stainless steel (see FIG. 6A). In order to knit the mesh, the wires 12 are knitted so as to cross each other vertically and horizontally, and unevenness corresponding to the diameter of the wire 12 is formed on the front and back surfaces of the intersecting portion around the mesh (FIG. 6 ( B)).

JP2002-17575

However, the conventional metal filter has the above-described irregularities formed on the front and back surfaces around the mesh, so that even after washing after use, some fine debris of leaves such as green tea and black tea are uneven on the front and back surfaces. There are inconveniences that it is caught by a part and attached, and it does not easily fall and flow when washed with water, and it does not easily fall even when kitchen detergent is used.
Furthermore, while debris adheres to and adheres to the front and back surfaces of a conventional metal filter, it does not fall off even when washed with kitchen detergent, etc., and the debris that gradually adheres gradually closes the filter mesh. Therefore, there is a disadvantage that the function of tea straining of the filter is lowered. In addition to this, the inconvenience that the taste of green tea or black tea that is newly added due to the sticky leaf leaves slightly changes.

  In view of the above-described problems, the present invention was created to solve the problems. The object of the present invention is to form a large number of micropores corresponding to the mesh of the filter and to form each micropore. The periphery of the hole on the front and back surfaces and the periphery around it are formed into a flat surface that is not uneven, so that the fine leaves of tea leaves adhering to the periphery of the hole on the front and back surfaces of the minute hole are washed away with a simple water wash to prevent sticking. It is to provide a tea strainer filter that can be made.

  In order to achieve the above-mentioned problems, the invention of claim 1 is characterized in that a large number of micro holes are formed on the side peripheral surface and the bottom surface of a stainless steel container whose upper surface is opened, and the peripheral edges of the front and back surfaces of each micro hole and the same. It is made up of means in which the periphery connected to is formed into a non-recessed flat surface.

  In order to achieve the above-mentioned problems, the invention of claim 2 is to form a large number of micro holes on the side peripheral surface and the bottom surface of a stainless steel container whose upper surface side is opened by laser processing and to display the surface of each micro hole. It consists of a means in which the peripheral edge of the hole on the back surface and the periphery connected thereto are formed into a non-concave flat surface.

According to the tea strainer filter according to the present invention comprising means for solving the problems, each micropore formed on the side peripheral surface and the bottom surface of the tea strainer filter has a hole periphery on the front and back surfaces and a periphery connected to the periphery. Is formed on a non-concave flat surface, so when washing the tea strainer filter with water, fine leaves such as green tea and black tea are drunk around the mesh like conventional filters. It flows smoothly along the perimeter of the hole on the front and back surfaces corresponding to the concave and convex portions and the peripheral edge of the hole on the front and back surfaces and the non-convex flat surface of the periphery connected to the front and back surfaces. It is possible to prevent the residue from being washed and stuck to a part of the front and back surfaces. Thereby, the trouble of washing the tea strainer filter with water can be simplified easily.
In addition, according to the tea strainer filter according to the present invention, the leaf residue does not stick to the periphery of the front and back surfaces of each minute hole and the surrounding area. Sticky leaf scum clogs part of the mesh, so that the filter's tea straining function does not deteriorate, and the flavor of tea such as green tea and black tea that is newly added is slightly changed by the sticky leaf scum. There is a very practical and beneficial effect, such as not doing anything.

It is a side view of the tea strainer filter which shows the form for implementing this device. It is a top view of the tea strainer filter which shows the form for implementing this device. It is AA arrow sectional drawing of FIG. (A) is an enlarged view of a microhole showing a form for carrying out the invention, (B) is an enlarged cross-sectional view of a microhole formed on a side peripheral surface showing a form for carrying out the invention, (B ) Is an enlarged cross-sectional view of a minute hole formed in the bottom surface showing a mode for carrying out the invention. It is sectional drawing when the tea strainer filter which shows the form for implementing this device is put in a teapot. (A) is the partial expanded front view of the conventional metal filter, (B) is the partial expanded sectional view of the conventional metal filter.

  Hereinafter, based on the form for implementing the device described in the drawings, the device will be described in more detail.

  In the figure, the tea strainer filter 1 is used inside teapots or teapots when drinking various teas such as green tea and black tea. It is mixed with tea liquids such as green tea and black tea that are poured in part to prevent them from flowing into tea cups and cups.

  The tea strainer filter 1 is formed of a cylindrical stainless steel container, the upper surface side of the container is opened, and a cocoon 2 made of a thin stainless steel plate is formed on the opened periphery, and the side peripheral surface 3 and the bottom surface 4 are made of stainless steel. It consists of a thin plate. A large number of minute holes are formed in the side peripheral surface 3 and the bottom surface 4 made of this stainless steel thin plate. The thickness of the stainless steel thin plate is, for example, around 0.15 mm.

  The trough 2 formed on the opened peripheral edge on the upper surface side of the cylindrical stainless steel container is bent toward the outside of the peripheral edge to form a flat ring. When the tea strainer filter 1 is placed inside a teapot or teapot, it is locked to the inner periphery of the top opening of the teapot or teapot, and its bottom surface 4 is slightly lifted from the inner bottom surface of the teapot. Play the role of being supported. Since the bottom surface 4 of the tea strainer filter 1 is slightly lifted away from the inner bottom surface of the teapot or the like, the liquid from which the tea extract is dissolved is also extracted from the bottom surface 4.

  The tea strainer filter 1 made up of a cylindrical stainless steel container has several cylindrical diameters and heights depending on the size of the teapot or teapot used. Yes. The user can select a tea strainer filter 1 suitable for the size of the teapot or teapot.

  Each of the micro holes 5 formed on the side peripheral surface 3 and the bottom surface 4 of the stainless steel container corresponds to a mesh formed by knitting a conventional thin metal wire vertically and horizontally. Each of these micro holes 5 functions as a filter, and even the fine leaves of tea are crushed and mixed with tea liquids such as green tea and black tea that are poured to prevent them from flowing into tea cups and cups. .

  Each microhole 5 in this embodiment is formed from a circular hole. The diameter of the circle is, for example, around 0.2 mm, but the diameter may be further smaller or larger as necessary. Further, in this embodiment, each microhole 5 having a diameter of about 0.2 mm is formed at a uniform interval at a ratio of about a few hundred in a plane having a size of 1 cm × 1 cm.

  In this embodiment, the minute holes 5 formed in the side peripheral surface 3 are arranged so as to be equidistant in the vertical direction and the horizontal direction perpendicular thereto, for example. Further, each microhole 5 is arranged such that each hole is arranged at four corners of the square, and one of the four other corners of the same size square is located at the intersection of the squares. In the state, each minute hole 5 is formed in the side peripheral surface 3. That is, when the liquid from which the tea extract is dissolved is extracted from the side peripheral surface 3 side, the micropores in the entire side peripheral surface 3 are extracted from the entire side peripheral surface 3 to the outside of the container as uniformly as possible. The arrangement of 5 is made uniform.

  The hole peripheral edge 5a of the front and back surfaces 3a, 3b of the micro holes 5 formed in large numbers on the side peripheral surface 3 and the periphery 5b connected thereto are formed in a non-recessed flat surface. The periphery 5b refers to a region of the entire peripheral portion on the outer peripheral side of the hole peripheral edge 5a (portions indicated by a large number of oblique lines in FIG. 4A). Moreover, the surface 3a of the side peripheral surface 3 shall point out the surface used as the inner side of a stainless steel container, and the back surface 3b of the side peripheral surface 3 shall refer to the surface used as the outer side of a stainless steel container. Further, the hole peripheral edge 5a and the peripheral periphery 5b connected to the flat surface having a non-recessed surface may have irregularities such as minute warpage and whiskers formed in the periphery and periphery of the hole when a hole or the like is formed by pressing. This means that there are no irregularities such as minute warping or whiskers.

  The flat surface shape means that the side peripheral surface 3 is formed in a circular shape when viewed from the plane. Strictly speaking, the surface 3a side of each microhole 5 has a concave arc shape toward the inside, This expression is used because it is bent toward the surface and is not a completely flat surface, but it is the same as above, and there is no unevenness such as minute warp or stab in the peripheral edge 5a and the periphery 5b connected thereto. Meaning.

  In this embodiment, the micro holes 5 formed in the bottom surface 4 are arranged concentrically from the center of the bottom surface 4, for example, and are arranged at equal intervals in the circumferential direction in each concentric circle. Since the diameter increases from the center toward the outside and the circumference thereof becomes longer, the number of micropores 5 formed in the circumferential direction increases as the distance from the center increases. That is, when the liquid from which the tea extract is dissolved is extracted from the bottom surface 4 side, the arrangement of the micropores 5 in the entire bottom surface 4 is made uniform so that it is extracted from the entire bottom surface 4 to the outside of the container as uniformly as possible. Is measured.

  The peripheral edge 5a of the front and back surfaces 4a and 4b of the micro holes 5 formed in large numbers on the bottom surface 4 and the periphery 5b connected thereto are formed in a non-protruded flat surface. The periphery 5b refers to a region of the entire peripheral portion on the outer peripheral side of the hole peripheral edge 5a (portions indicated by a large number of oblique lines in FIG. 4A). Further, the surface 4a of the bottom surface 4 indicates the surface that becomes the inside of the stainless steel container, and the back surface 4b of the bottom surface 4 indicates the surface that becomes the outside of the stainless steel container. Further, the hole peripheral edge 5a and the peripheral periphery 5b connected to the flat surface having a non-recessed surface may have irregularities such as minute warpage and whiskers formed in the periphery and periphery of the hole when a hole or the like is formed by pressing. This means that there are no irregularities such as minute warping or whiskers.

  In this embodiment, since the bottom surface 4 is formed on a horizontal flat surface, unlike the side peripheral surface 3, the peripheral edge 5a of the front and back surfaces 4a and 4b of each microhole 5 formed on the bottom surface 4 and The meaning of the non-convex flat surface formed on the continuous periphery 5b includes a complete flat surface. However, unlike this embodiment, the bottom surface 4 may be formed in a mortar shape. At this time, as in the case of the side peripheral surface 3 described above, strictly speaking, the surface 4a side of each microhole 5 has a concave arc shape toward the inside and is bent toward the inside, Such an expression is used because it may not be a flat surface. When the bottom surface 4 is formed in the shape of a mortar, it is the same as the side peripheral surface 3, which means that there is no unevenness such as minute warpage or whiskers in the peripheral edge 5 a and the periphery 5 b connected thereto.

  The micro holes 5 formed in the side peripheral surface 3 and the bottom surface 4 are formed by laser processing. When a hole is made by press working or the like, convex minute warpage or whisker is formed on one side of the front and back surfaces at the periphery of the hole. The hole periphery 5a and the periphery 5b connected to the hole periphery can be formed on a flat surface. Moreover, formation of the microhole 5 becomes easy by laser processing.

The tea strainer filter 1 is produced by, for example, joining three parts, a basket 2, a side peripheral surface 3, and a bottom surface 4. The side peripheral surface 3 is formed by forming micro holes 5 by laser processing in the state of a flat plate surface, bending this into a cylindrical shape, and joining the side ends bent into the cylindrical shape.

Next, the use based on the structure of the form for implementing the said device is demonstrated below.
A lid 6a such as a teapot or a teapot 6 is opened, and a tea strainer filter 1 made of a cylindrical stainless steel container of a size suitable for the teapot 6 or the like is placed therein. The tea cup 2 formed on the periphery of the top opening of the tea strainer filter 1 is locked to the inner opening periphery of the top surface of the teapot or teapot 6, so that the tea strainer filter 1 has its bottom surface 4 from the inner bottom surface of the teapot 6. Supported in a slightly floating state.

  Inside the cylindrical stainless steel container of tea strainer filter 1, an appropriate amount of leaves of favorite teas such as green tea and black tea are put. For example, pour hot water into it. When hot water is poured, tea leaves placed inside the cylindrical stainless steel container of the tea strainer filter 1 diffuse inside the tea strainer filter 1 while dancing.

  In this case, the tea leaves in the bag are narrow inside the bag, so even if hot water is poured, it cannot diffuse while dancing so-called inside the bag, so the extract contained in the leaf cannot be extracted evenly. However, the leaves of the tea that diffuse while dancing inside the tea strainer filter 1 sufficiently intersect with the hot water, so the extract contained in the leaves melts into the hot water evenly.

  The dissolved extract is diffused by hot water, passes through a large number of micropores 5 formed on the side peripheral surface 3 and the bottom surface 4 of the tea strainer filter 1, and is extracted outside the tea strainer filter 1. At this time, some fine leaves smaller than the pore diameter of the micropores 5 pass through the micropores 5 and flow out of the filter 1, but leaves larger than the pore diameter of the micropores 5 are blocked by the micropores 5. As a result, it does not leak out of the tea strainer filter 1. For this reason, leaves of a size that is of concern when drinking teas such as green tea and black tea are not consumed at the same time, and no discomfort is produced.

  By the way, in the case of washing the filter after use, a conventional thin wire knitted mesh has irregularities around the mesh, and fine leaf residue is caught on the irregularities and cannot be easily washed away. Sometimes. In addition, the fine leaf residue that could not be washed out will stick to the surface and it will be difficult to wash it off even if kitchen detergent is used. Then, new leaf debris adheres to the stick and sticks, and this process is repeated, gradually closing the filter mesh and reducing the function of the filter. In addition, the sticks that are stuck may have disadvantages such as subtly affecting the seasoning when they are used to drink new teas.

  However, in the case of the tea strainer 1 of the present plan, even if fine leaves are caught on and attached to the peripheral edge 5a of each microhole 5 formed on the side peripheral surface 3 and the bottom surface 4, the front and back surfaces 3a , 3b, 4a, 4b, and the peripheral edge 5b connected to the hole periphery 5b are formed in a non-protruded flat surface. After the tea strainer filter 1 is used, it can be easily washed without being caught. It can be washed away.

  Since it can be washed out easily in this way, there is no sticking of leaves, and the sticking sticks do not grow with new sticking sticks. Therefore, the function as a filter does not deteriorate. In addition, when the tea is next drunk using this filter due to sticky residue, there is no subtle effect on the taste.

  It should be noted that the present invention is not limited to the mode for carrying out the above-described invention, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Tea strainer filter 2 ３ 3 Side peripheral surface 3a Surface 3b Back surface 4 Bottom surface 4a Surface 4b Back surface 5 Micro hole 5a Periphery 5b Periphery 6 Teapot 6a Lid 11 Metal filter 12 Wire

Claims (2)

A large number of micro holes are formed on the side peripheral surface and bottom surface of the stainless steel container whose upper surface side is opened, and the peripheral edge of the front and back surfaces of each micro hole and the periphery thereof are formed in a non-protruding flat surface. A tea strainer filter. A large number of micro holes are formed by laser processing on the side peripheral surface and bottom surface of a stainless steel container opened on the upper surface side, and the peripheries of the front and back surfaces of each micro hole and the peripheral area thereof are formed into a non-protruded flat surface. A tea strainer filter characterized by

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