JP2003000437A - Drink filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drink filter which is easy to handle and does not cause leakage of coffee while transported after coffee is poured into an individual cup. SOLUTION: On the drink filer 10 furnishing a flow hole 12 dripping liquid to the bottom of a filtering paper storage part 11, a foot part 13 located around the bottom of the filtering paper storage part 11 and a grip part 14 on the side of the filtering paper storage part 11 respectively, a valve body part 34 hanged on the flow hole 12 with an elastic member 31 and blocking the flow hole 12 with adhered to the elastic member 31 while the free state, a valve member 32 having an axis part 33 with a lateral hole 35 on the bottom, a slant part 39 going through an interlocking part 38 of the grip part 14, the filtering paper storage part 11 and the foot part 13 by sliding and a horizontal part 40 going through the lateral hole 35 interlocked to the lower end of the slant part 39 with sliding are equipped. On the upper end of the slant part 39, an operation member 37 with an operation button 41 is set, and the flow hole 12 is opened with the valve member 32 descending with a pressing movement of the operation button 41.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drink filter used when, for example, coffee is added from ground coffee beans, tea or tea is added to tea leaves or tea ingredients through hot water.

[0002]

2. Description of the Related Art In a conventional drink filter, for example, a coffee dripper, the whole is made of pottery, porcelain or heat-resistant plastic, and a water passage hole is provided at the bottom of an inverted truncated cone-shaped filter paper storage unit. It is known that a handle portion is provided on the side of the filter paper storage portion, and a circular mounting portion is provided on the bottom portion of the filter paper storage portion. In using such a coffee dripper, after placing the coffee dripper on a predetermined container such as a cup through the placing part, spread the funnel-shaped filter paper in the filter paper storage part and put it in the filter paper. After putting a predetermined amount of ground coffee beans (ground), hot water was poured from the top to allow the extracted coffee liquid to flow down into the container to make coffee. However, since there is a water passage hole in the bottom of the filter paper storage part, when you try to transfer the drink filter that extracts coffee liquid in one cup to another container, it is necessary to use coffee beans or filter paper as a raw material. There was a problem that the contained coffee liquid leaked out as a drop from the water passage hole.
Then, the coffee dripper described in Japanese Patent Application No. 2000-90262 is proposed. This coffee dripper is provided with a water passage hole for dropping the filtered coffee liquid in the bottom part of the inverted truncated cone-shaped filter paper storage portion, and a plate-shaped mounting portion at the bottom. Is equipped with a stopper that is always elastically urged to prevent the coffee liquid from flowing down, an operating member for opening the stopper is provided, and the operating portion of the operating member is arranged near the handle provided on one side of the filter paper storage portion. is doing. The operating member is supported movably in the vertical direction by penetrating a guide portion and a handle provided on a side portion of the filter paper storage portion, and a stopper is provided at a lower end of the operating member and an operating portion is provided at an upper end thereof. ,
Further, an elastic member for urging the stopper upward is provided between the handle and the operation portion. With this configuration,
When coffee is individually made in a container such as a cup, there is no coffee leakage during transfer, and it is possible to make tea or green tea in some cases.

[0003]

However, the above-mentioned coffee dripper has the following problems. When the operation member is moved in the up-down direction by the operation unit to flow the coffee liquid, the operation member moves diagonally along the wall surface of the filter paper storage unit. As a result, the plug closing the lower end of the water passage also moves diagonally, so that the water passage is closed after a part of the plug rubs against the inner periphery of the water passage. Therefore, by repeatedly using the coffee dripper, the plug may be unevenly worn, the water passage hole may not be sufficiently blocked by the plug, and coffee liquid may leak. Also,
This coffee dripper is provided with a hook portion that can be maintained in a state where the operating portion is lowered and that is composed of a Z-shaped lower member and a U-shaped upper member, and the lower member is fitted into the upper member. The coffee liquid is continuously flowed down. Therefore, since fitting or removal of the lower member to the upper member cannot be performed with one hand, both hands must be used each time, and operability and workability are not good. The present invention has been made in view of such circumstances, and when, for example, coffee is individually put into a container such as a cup, there is no coffee leakage during transfer, and black tea or green tea can be put in some cases, and operability is further improved. ,
An object is to provide a drink filter having good workability.

[0004]

The drink filter according to the present invention, which has the above-mentioned object, is provided with a water passage hole through which the filtered extract is dropped at the bottom of an inverted truncated cone-shaped filter paper storage unit. In the drink filter with a leg part that lifts the water passage hole from the mounting surface around the bottom part of the part, and a handle part is provided on the side of the filter paper storage part, suspend it with an elastic member in the water passage hole. In the free state, the valve body is urged by the elastic member to close the water passage hole from below, and the lateral hole has the shaft portion formed at the lower position. When the hole is free, the valve member protruding from the bottom of the filter paper storage portion, the handle portion,
In addition, an inclined portion slidably penetrating the connecting portion of the bottom portion of the filter paper storage portion and the leg portion, and a horizontal portion integrally connected to the lower end of the inclined portion and slidably penetrating the lateral hole are provided. An operation member provided with an operation button is provided at the upper end, and the valve member is lowered and the water passage hole is opened by the pressing operation of the operation button. In this way, by pressing the operation button to open the water passage hole, the inclined portion descends in the axial direction of the inclined portion, that is, in the oblique direction. As a result, the horizontal portion, which is integrally connected to the lower end of the inclined portion, descends while maintaining the angle with the inclined portion. Therefore, the horizontal portion descends and slides horizontally in the lateral hole formed in the shaft portion. It also moves in the direction. Therefore, the shaft is
It is possible to descend only in the axial direction without moving laterally with the horizontal part.

Here, in the drink filter according to the present invention, it is preferable that a lock mechanism for holding the operation button in the lowered state is provided, and the state in which the water passage hole is opened is continued by operating the lock mechanism. As a result, the lowered state of the operation button is maintained without using a hand, and the extraction liquid can be continuously flowed down from the drink filter. Further, in the drink filter according to the present invention, the lock mechanism is provided on the latch member rotatably mounted in the pin holes on both sides of the operation button and the upper position of the handle portion, and when the operation button is pushed down, It may have a stopper member to be locked. As a result, it is possible to maintain the pressed down state of the operation button with a simple configuration.

Further, in the drink filter according to the present invention, the pin holes on both sides of the operation button are provided at positions having different axial centers, the hooking member is made of a bent elastic metal wire, and in a free state, it is made of the stopper member. The hooking member may be urged in a direction to come off. As described above, since the pin holes have different axial centers, the locking members mounted in the pin holes are supported at two points, and the rotation of the locking members with respect to the pin holes is hindered. As a result, the latching member made of the elastic metal wire can be urged in the free state in the direction away from the stopper member, so that, for example, when temporarily opening the water passage hole, the latching member is pushed after pressing the operation button. On the other hand, when the operation button is locked by the stopper member and the lowered state of the operation button is released, the force of the latch member to return to the original position is used to further press the operation button maintained in the lowered state. Only then, the latching member is disengaged from the stopper member, and the lowered state of the operation button is released.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, referring to the attached drawings, an embodiment in which the present invention is embodied will be described to provide an understanding of the present invention. 1 is an explanatory view of a drink filter according to an embodiment of the present invention, FIG. 2 is a perspective view of the drink filter, and FIGS. 3 (A) to 3 (C) are guides of the drink filter. 4A and 4B are a plan view, a side view, and FIG. 5 of the operation button portion used in the drink filter, respectively, showing a member, a valve member, and an operation member. FIG.

As shown in FIGS. 1 to 5, a drink filter 10 according to an embodiment of the present invention is a coffee that is an example of an extract liquid filtered at the bottom of an inverted truncated cone-shaped filter paper storage unit 11. A water passage hole 12 for dropping the liquid is provided, a leg portion 13 for raising the water passage hole 12 from the mounting surface is provided around the bottom of the filter paper storage unit 11, and a handle portion is provided on the side of the filter paper storage unit 11. 14 is provided. These will be described in detail below.

The filter paper storage unit 11 is made of ceramics such as pottery and porcelain. The filter paper storage unit 11 is made of the same material as that of the filter paper storage unit 11 on the side of the filter paper storage unit 11, that is, on the outer side. A U-shaped handle portion 14 is integrally formed. Around the bottom portion of the filter paper storage portion 11, a cylindrical leg portion 13 made of the same material as the filter paper storage portion 11 and having an outer diameter substantially equal to the outer diameter of the bottom portion is integrally formed. Has been done. It should be noted that a mounting table D for mounting the drink filter 10 on a container C such as a cup is preferably provided integrally or independently on the lower outside of the leg portion 13. It suffices if the diameter of the mounting table D is larger than the diameter of the container C such as a cup, and the mounting table D is appropriately provided with a notch or the like.
It is also possible to make the amount of coffee poured into the container C visible. A lid may be provided on the filter paper storage unit 11. Furthermore, the bottom of the filter paper storage unit 11,
That is, an inner flange 16 having an opening 15 formed in the center is integrally provided at the upper position of the leg portion 13. Figure 1,
As shown in FIGS. 2 and 3 (A), the guide member 17 mounted in the opening 15 of the inner flange 16 includes a male screw member 18 provided with a water passage hole 12 on the lower side, a rubber plate, and the like. After having the packing 19 and the internal thread 20, the packing 19 is attached to the external thread part 21 of the external thread member 18, the external thread part 21 is inserted through the opening 15, and the internal thread 2 is inserted into the external thread part 21.
By screwing 0, the guide member 17 can be attached to the bottom of the filter paper storage unit 11 in a sealed state.

The male screw member 18 has a substantially cylindrical shape, and the shape of the water passage hole 12 at the inner lower portion of the male screw member 18 is such that a part thereof has a hook-like protrusion whose diameter is reduced downward. Has become. A flange 22 is provided on the outer periphery of the center of the male screw member 18 in the height direction, and an upper portion of the flange 22 penetrates the side wall portion of the male screw member 18 with an inverted U-shaped contour. Two holes 23 are formed, and at the upper end of the male screw member 18, a disc-shaped mounting member 27 having a plurality of through holes 25, 26 for mounting the bottom portion of the filter paper 24 is arranged, and a fixing member 28 is used. Male screw member 1
It is fixed at 8. Further, inside the upper end portion of the male screw member 18, two grooves 29 located at a portion corresponding to the diameter of the male screw member 18 are formed. The male screw member 1
8, the female screw 20, and the mounting member 27 are made of heat-resistant plastic or stainless steel.

As shown in FIGS. 3 (A) and 3 (B), a rod 30 is bridged in the groove 29, and one end of a spring 31, which is an example of an elastic member, is attached to the center of the rod 30. The valve member 32 is arranged on the other end of the spring 31. The spring 31 is in a compressed state in a free state and can be extended by applying a force. Here, the rod 30 and the spring 31 are made of stainless steel having corrosion resistance. The valve member 32 is
A valve body portion 34 suspended from the water passage hole 12 by a spring 31 and urged by the spring 31 in a free state to come into contact with the lower end of the hook-shaped protrusion of the water passage hole 12 to close the water passage hole 12 from below.
And a lateral hole 35 has a shaft portion 33 formed at a lower position. In addition, the spring 31 is attached to the upper end of the shaft 33.
Has a hole 36 for easily attaching the shaft portion 33 to
The shaft portion 33 can be hung on the other end of the spring 31, but the other end of the spring 31 and the upper end of the shaft portion 33 can be integrally manufactured by welding or the like. And
Since the central portion of the shaft portion 33 has a constricted shape, the valve body portion 34 can be securely fixed to a predetermined position of the shaft portion 33. The valve body portion 34 has a shape in which a hemisphere and an inverted truncated cone are integrated and is made of rubber or plastic having elasticity, but if the water passage hole 12 can be closed, for example, It is also possible that the hemispherical portion has a conical shape or a truncated cone shape. The shaft 33 is
The horizontal hole 35 formed in the shaft portion 33 is arranged so as to project from the bottom portion of the filter paper storage portion 11 in the free state (FIG. 1).
reference). With this configuration, the valve body portion 34 is always provided.
Is reliably contacted with the inner lower end of the water passage hole 12, so that the coffee liquid can be prevented from flowing down from the water passage hole 12. In order to suppress wear of the upper portion of the valve body portion 34, an inclined surface is formed at the lower end portion of the hook-shaped protrusion of the water passage hole 12, and the upper portion of the valve body portion 34 abuts on the inclined surface, thereby It is also possible to close the water hole 12.

As shown in FIGS. 1 and 3C, the drink filter 10 is provided with an operating member 37. The operating member 37 is provided in the handle portion 14 and the filter paper storage portion 11. An inclined portion 39 slidably passing through the connecting portion 38 of the bottom portion and the leg portion 13 and a horizontal portion 40 integrally connected to the lower end of the inclined portion 39 and slidably passing through the lateral hole 35 are provided. It has an operation button 41 provided at the upper end of 39. The slanted portion 39 that rises obliquely along the side surface of the filter paper storage portion 11 and the horizontal portion 40 that slides in the lateral hole 35 in the lateral direction are configured by bending a single stainless steel bar. ing. The inclined portion 39 and the horizontal portion 40
The angle formed by and is slightly larger than the angle formed by the side surface of the filter paper storage unit 11 and the horizontal portion 40, and is preferably in the range of, for example, about 110 to 130 degrees.

The operation button 41 provided on the upper end of the inclined portion 39 is made of wood, and has a shape in which an inverted circular truncated cone is attached to the lower end of a cylinder, and the upper end surface is a curved surface bulging outward, and the inverted circular truncated cone is formed. The side surface of is composed of a curved surface that is recessed inward. The operation button 41 may be made of plastic or metal. With this configuration, the valve member 32 descends due to the pressing operation of the operation button 41, so that the inclined portion 39 descends in the axial direction of the inclined portion 39, that is, in the oblique direction. As a result, the horizontal portion 40 becomes the inclined portion 39.
Since it descends while maintaining the angle with, it descends and moves in the lateral direction while sliding in the lateral hole 35 of the shaft portion 33. For this reason, the shaft portion 33 does not move laterally together with the horizontal portion 40 and descends only along the water passage hole 12 in the axial direction. Therefore, when the horizontal portion 40 moves up and down, the valve body 3
4 moves substantially in the vertical direction, and the water passage hole 12 can be opened and closed.

As shown in FIGS. 4A and 4B,
The drink filter 10 is provided with a lock mechanism 42 that holds the lowered state of the operation button 41, and by operating the lock mechanism 42, the state in which the water passage hole 12 is opened can be continued. The lock mechanism 42 is provided at a locking member 45 rotatably mounted in the pin holes 43 and 44 on both sides of the operation button 41 and an upper position of the handle portion 14, and is locked when the operation button 41 is pushed down. Stopper member 46
And have. The pin holes 43 and 44 provided on both sides of the operation button 41 are provided at the same distance D in the vertical direction with the diameter of the operation button 41 as the center line (the one-dot chain line in FIG. 4A), that is, at positions where the axes are different. Has been. In addition, it is also possible to shift the axis center equidistantly in the front-rear direction or equidistantly in the diagonal direction with the diameter of the operation button 41 as the center line.

Further, the hooking member 45 is made of an elastic metal wire (for example, a piano wire) which is bent in a V shape in a side view and is U-shaped in a plan view. Both ends of the member 45 are bent substantially at right angles and inserted into the pin holes 43 and 44. On the other hand, this hook member 45
The stopper member 46 which is locked by the upper part has a truncated cone shape and has a hook shape when viewed from the side.
It has a structure that can be hooked inside 5. In addition, from the central portion of the stopper member 46 to the lower portion, the male screw portion 47
Is formed, penetrates through the through-hole 48 formed in the handle portion 14, is screwed with a female screw 49, and is fixed to the handle portion 14. In addition, at the lower end of the stopper member 46, the hooking member 45
And a plurality of protrusions made of a rubber material or the like for increasing the frictional resistance of the latching member 45,
It is also possible to more securely hook the hooking member 45 on the lower end of the stopper member 46. By mounting the locking member 45 in the pin holes 43 and 44 having different axial centers, the locking member 45
Can be supported at two different points with respect to the operation button 41, so that the locking member 45 can be urged in the direction in which the locking member 45 is disengaged from the stopper member 46 in the free state.

In addition, as shown in FIG.
When the pressed down state (the state where the water passage hole 12 is open) is maintained, that is, when the hooking member 45 is hooked on the stopper member 46, the lower end of the operation button 41 and the stopper member 46 are It has a slight gap without completely contacting the upper end. Therefore, by further pressing the operation button 41 maintained in the lowered state to a position where the lower end of the operation button 41 and the upper end of the stopper member 46 are completely in contact with each other, the latch member 45 tries to return to the original position. By using force, the latch member 45 is released from the stopper member 46, and the pressed down state of the operation button 41 is released. In addition, when the pressed down state of the operation button 41 is maintained, the shaft portion 3
It is preferable that the lower end of 3 does not protrude from the lower end of the leg portion 13. With such a configuration, the shaft portion 33 and the horizontal portion 40 do not project below the drink filter 10, so that the appearance of the drink filter 10 in a used state is improved.

Next, regarding the method of using the drink filter according to the embodiment of the present invention, when coffee is added from ground coffee bean raw material, tea leaves (green tea powder) and tea leaves and black tea are obtained. Each case will be described. First, the opening 15 at the bottom of the filter paper storage unit 11
Then, the male screw portion 21 fitted with the packing 19 is inserted, and the female screw 20 is screwed onto the male screw portion 21 to fix the guide member 17 in the seal state to the filter paper storage portion 11. Next, the operating member 37 is inserted into the lateral hole 35 formed in the shaft portion 33 of the valve member 32.
The horizontal portion 40 is inserted, and one end of the spring 31 is hung on the bar member 30 arranged at the upper end portion of the male screw member 18.

Next, preparations for making coffee are made. With the above-described drink filter 10 placed on a predetermined container C or the like via the placing table D, the filter paper 24 is put into the filter paper storage portion 11 from the top, and the bottom of the filter paper 24 is the placing member 27. It is arranged so as to be placed on the upper surface (see FIG. 2). The operation button 41 is not pushed down, and the spring 31
Is in a state of being compressed (free state), the water passage hole 12 is maintained in the closed state by the valve body portion 34.
After that, the coffee raw material obtained by grinding the coffee beans is put into the filter paper 24, and hot water is poured from above to prepare a coffee liquid.
After a few seconds have passed (the coffee liquid is produced), the operation button 41 is pushed down in order to keep the water passage hole 12 of the drink filter 10 open temporarily (for example, for a long time). As a result, the shaft portion 33 descends substantially straight along the water passage hole 12, so that the valve body portion 34 formed in the central portion of the shaft portion 33 descends substantially straight along with the shaft portion 33, and the water passage is achieved. Open the hole 12. Then, the hooking member 45 attached to the operation button 41 is hooked on the stopper member 46 (see FIG. 5).

At this time, since the operation button 41 is pushed down, the spring 31 is in an expanded state, and the valve body portion 34 is arranged with a gap from the lower end of the hook-up protruding portion of the water passage hole 12. (See FIG. 5). As a result, the filtered coffee liquid flows down into the water passage hole 12 through the through hole 23 formed in the side wall of the male screw member 18 and the through holes 25 and 26 formed in the mounting member 27, and the container C Flows into. Therefore, it is possible to keep the water passage hole 12 open without continuously pressing the operation button 41 with a finger. Therefore, when making a large amount of coffee liquid, by continuing to pour hot water while watching the amount of hot water in the filter paper 24, the drink filter 10
Since the coffee liquid can be continuously flowed down from, the workability is good.

When the flow of the coffee liquid into the container C is completed, or when the flow of the coffee liquid into the container C is stopped, the operation button 41 is pushed down. At this time, by further pressing the operation button 41 to a position where the lower end of the operation button 41 and the upper end of the stopper member 46 are in contact with each other, the latch member 45 is disengaged from the stopper member 46 and the operation button 41 is pushed down. It will be canceled. This allows
The force applied to the spring 31 disappears and the spring 31 becomes free. Therefore, since the shaft portion 33 rises substantially straight along the water passage hole 12, the valve body portion 34 formed in the central portion of the shaft portion 33 rises substantially straight along with the shaft portion 33, and the water passage hole It contacts the lower end of the hook-shaped protrusion 12 and maintains the closed state of the water passage hole 12 (see FIG. 1). As a result, it is possible to easily prevent the coffee beans contained in the coffee raw material and the coffee liquid contained in the filter paper from leaking from the water passage hole 12 with one hand, and therefore the workability and operability are improved.

Next, the case of adding tea from tea leaves and tea from tea leaves will be described. First, as described above, the guide member 17 and the valve member 3 are provided in the filter paper storage unit 11.
2 、 Drink filter 1 equipped with operating member 37
The filter paper 24 is put in the filter paper storage unit 11 of No. 0, and the bottom of the filter paper 24 is placed on the upper surface of the placing member 27 (see FIG. 2). Since the operation button 41 is not pushed down and the spring 31 is in a compressed state (free state), the water passage hole 12 is kept closed by the valve body portion 34. After that, tea or black tea leaves are put in the filter paper 24, hot water is poured from above, and the filter paper storage unit 11 is covered.
Leave for a predetermined time (for example, about 10 seconds to 3 minutes) to extract tea or black tea. After the tea or black tea is prepared, the drink filter 10 is brought onto a container such as a cup, and the operation button 41 is pressed with a finger to cause the tea or black tea to flow down into the container. Since the amount of water flowing down into the cup is not large, after the predetermined amount of tea or black tea has flowed down into the cup, the finger pressing the operation button 41 is released, so that the water passage hole 12 is closed to the valve body portion 34. Blockage and stop the flow of tea or black tea. By repeating this operation, it becomes possible to cause tea or black tea to flow down into a plurality of containers without leaking the droplets from the water passage hole 12.

Although the present invention has been described above with reference to an embodiment, the present invention is not limited to the structure described in the above embodiment, but is described in the scope of claims. Other embodiments and modifications that are conceivable within the scope of the matters described above are also included. For example, in the above-described embodiment, the pin holes on both sides of the operation button are provided at positions with different axes, and in the free state, the pin members are urged in the direction in which the latch member is disengaged from the stopper member. However, in the free state, if it can be urged in the direction in which the locking member is disengaged from the stopper member, for example, the axial center positions of the pin holes are made the same,
It is also possible to fix the latching member to the pin hole with an adhesive or the like, or use a latching member that has a spring material arranged on one side and has a rectangular shape in plan view. It is also possible to fix it diametrically inside.

Further, the inner diameter of the water passage hole is preferably slightly larger than the diameter of the shaft portion in order to lower the shaft portion straightly, but this reduces the amount of coffee liquid flowing down per unit time. The part where the valve body abuts is an inclined surface,
Form a plurality of grooves that open to the water passage hole side, or form a plurality of through holes above the portion where the valve body abuts, that is, in the portion where the inner diameter of the water passage hole is the smallest and in the vicinity thereof. Is also possible. As a result, the shaft portion moves straight up and down along the water passage hole, so that the valve body portion formed in the central portion of the shaft portion also moves straight up and down together with the shaft portion to incline the lower side of the water passage hole. Since it abuts against the surface, it is possible to further prevent uneven wear that occurs in the valve body. The size of the drink filter varies depending on the application, and basically the size and shape of the drink filter may be changed without changing the gist of the present invention.

[0024]

In the drink filter according to the first to fourth aspects of the present invention, when the horizontal portion of the operating member moves up and down, the valve body portion moves substantially in the vertical direction and hits the inner lower end of the water passage hole. Since it is in contact with the inside of the water passage hole, uneven wear of the valve body portion caused by repeated contact of a part of the valve body portion can be suppressed. The parts are in firm contact. Therefore, it is possible to provide a drink filter which can prevent the extract from flowing down from the water passage hole.

In particular, in the drink filter according to the second aspect of the present invention, the lock mechanism keeps the lowered state of the operation button without using a hand, and the extraction liquid can be continuously flowed down from the drink filter. Therefore, it is possible to prevent leakage of the extract remaining after the extraction. Therefore, place this drink filter as it is on a table, etc., or use it with the water passage closed, for example, for drinks that have a long extraction time, such as tea or black tea. Is also possible. In the drink filter according to the third aspect of the present invention, since the operation button can be maintained in the depressed state with a simple structure using the latching member and the stopper member, the manufacturing cost can be reduced and it is economical.

In the drink filter according to the fourth aspect of the present invention, since the pin holes have different axial centers,
Since the latching member made of elastic metal wire can be urged in a direction away from the stopper member in the free state, when temporarily opening the water passage hole, for example, after pressing the operation button, the latching member is used as the stopper member. On the other hand, when releasing the lowered state of the operation button, on the other hand, by using the force to return to the original position in which the locking member is urged, simply press the operation button that maintains the lowered state, The latch member is disengaged from the stopper member, and the lowered state of the operation button is released. Therefore, the water passage hole can be easily closed with one hand to stop the flow of the extract, so that a drink filter having good operability and good workability can be provided.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a drink filter according to an embodiment of the present invention.

FIG. 2 is a perspective view of the drink filter.

3A to 3C are explanatory views of a guide member, a valve member, and an operating member of the drink filter, respectively.

4 (A) and 4 (B) are a plan view and a side view, respectively, of an operation button portion used in the drink filter.

FIG. 5 is an explanatory view of a usage state of the drink filter.

[Explanation of symbols]

10: Drink filter, 11: Filter paper storage part, 12: Water passage hole, 13: Leg part, 14: Handle part, 15: Opening, 16: Inner flange, 17: Guide member, 18: Male screw member, 1
9: packing, 20: female screw, 21: male screw part, 22:
Flange, 23: through hole, 24: filter paper, 25: through hole,
26: through hole, 27: mounting member, 28: fixing member, 2
9: groove, 30: bar, 31: spring (elastic member),
32: valve member, 33: shaft portion, 34: valve body portion, 35: lateral hole, 36: hole, 37: operating member, 38: connecting portion, 3
9: inclined part, 40: horizontal part, 41: operation button, 42:
Lock mechanism, 43: pin hole, 44: pin hole, 45: latch member, 46: stopper member, 47: male screw part, 48:
Through hole, 49: Female thread

Claims (4)

[Claims] 1. An inverted frustoconical filter paper storage part is provided with a water passage hole through which a filtered extract is dropped, and the water passage hole is raised around the bottom of the filter paper storage part from a mounting surface. In a drink filter in which a leg portion is provided and a handle portion is further provided on the side of the filter paper storage portion, the drink filter is suspended by an elastic member in the water passage hole, and is biased by the elastic member in a free state. A valve body portion for closing the water passage hole from below is provided, the lateral hole has a shaft portion formed at a lower position, and further, when the lateral hole formed in the shaft portion is in a free state, A valve member protruding from the bottom, the handle, and an inclined portion slidably penetrating the connecting portion between the bottom of the filter paper storage portion and the leg and the lower end of the inclined portion are integrally connected to the lateral portion. There is a horizontal part that slidably passes through the hole, and an operation button is provided at the upper end of the inclined part. The operation of the drink filter is characterized in that the valve member is lowered and the water passage hole is opened by the pressing operation of the operation button. 2. The drink filter according to claim 1, further comprising a lock mechanism that holds the lowered state of the operation button, and the state in which the water passage hole is opened is continued by operating the lock mechanism. Drink filter characterized by. 3. The drink filter according to claim 2, wherein the lock mechanism is provided at a locking member rotatably mounted in pin holes on both sides of the operation button and at an upper position of the grip portion. A drink filter comprising: a stopper member that locks when the operation button is pushed down. 4. The drink filter according to claim 3, wherein the pin holes on both sides of the operation button are provided at positions having different axes, and the hooking member is made of a bent elastic metal wire, and is in a free state. Then, the drink filter characterized in that the stopper member is urged in a direction in which the hook member is disengaged from the stopper member.