Drain filter device and washing machine or dryer

Abstract

The present invention provides a drainage filter device that excels in capturing and containing dust, while also requiring minimal installation space. [Solution] The drain filter device 10 has an operating handle section 1 provided at one end in the longitudinal direction and equipped with a handle 1a, and a dust capturing section 2 provided continuously with the operating handle section 1 and equipped with a dust collection case 2a. The dust capturing section 2 has an opening 3 through which drainage passes, and rotatable comb-shaped members 4a, 4b that substantially close the opening 3 in a grid-like manner while allowing drainage to pass through. The comb-shaped members 4a, 4b are also provided with a plurality of dust removal pieces 4c, 4c... continuously, and can be rotated to substantially open the opening 3 when disposing of the captured dust.

Description

Technical Field

[0001] The present invention relates to a drainage filter device installed in a drainage channel for capturing dust contained in drainage, and a washing machine or dryer equipped with this drainage filter device.

Background Art

[0002] Conventionally, a lint filter that is installed so as to be communicable with the drainage outlet of a washing machine and collects and removes dust is known (Patent Document 1).

[0003] The lint filter described in Patent Document 1 has a base, a plurality of rod-shaped protrusions formed on the base for collecting lint in a fluid, and a cover body having insertion holes into which the rod-shaped protrusions are inserted. The cover body is movable between the vicinity of the base and the vicinity of the tip of the rod-shaped protrusion in a state of being inserted into the rod-shaped protrusion. By moving the cover body from the base side to the tip side of the rod-shaped protrusion, the collected lint is removed to the tip side of the rod-shaped protrusion. The cover body is characterized in that in a state where the cover body is moved to the maximum extent near the tip of the rod-shaped protrusion, the insertion-side opening of the insertion hole is on the base side rather than the tip of the rod-shaped protrusion.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the lint filter described in Patent Document 1, since a plurality of rod-shaped protrusions protrude upward, the space of the base for accommodating lint becomes narrow and the installation space in a washing machine or dryer becomes large.

[0006] The present invention aims to solve the aforementioned conventional problems and to provide a drain filter device that has excellent dust capture and containment capabilities and can reduce installation space, as well as a washing machine or dryer equipped with this drain filter device. [Means for solving the problem]

[0007] To solve the aforementioned conventional problems, the invention of claim 1 is a drain filter device installed in a drain channel for draining wastewater to the outside and for capturing dust contained in the wastewater, wherein the drain filter device has an operating handle provided at one end in the longitudinal direction and a dust capturing section provided continuously with the operating handle, the dust capturing section has an opening through which the wastewater passes and a rotatable comb-shaped member that substantially closes the opening in a grid or striped pattern while allowing the wastewater to pass, the comb-shaped member is characterized in that a plurality of dust-removing pieces are continuously provided on it and that it can be rotated to substantially open the opening when the captured dust is to be disposed of.

[0008] In the invention of claim 1, by making the comb-shaped member partially closed in a grid or striped pattern while allowing drainage to pass through, the ability to capture and contain dust can be improved. Furthermore, by allowing the opening to be partially opened when the captured dust is to be disposed of, the installation space in washing machines and dryers can be reduced. In addition, by directing the tip of the dust removal piece toward the disposal direction, dust can be disposed of efficiently.

[0009] The invention of claim 2 is characterized in that, in the invention of claim 1, there are two comb-shaped members, each having a pivot axis arranged along both ends of the opening, and when the drain filter device is viewed from above with the opening closed by each comb-shaped member, the multiple dust-removing pieces are arranged substantially symmetrically with respect to the center line of the opening. As a result, the dust-capturing unit can effectively drain water with a simple configuration while capturing and evenly collecting dust contained in the drain water. Furthermore, if the two comb-shaped members are made of the same material, manufacturing costs can be reduced.

[0010] The invention of claim 3 is characterized in that, in the invention of claim 1, there are two comb-shaped members, each having a pivot shaft arranged along both ends of the opening, and when the drain filter device is viewed from above with the opening closed by each comb-shaped member, multiple dust-removing pieces overlap, and a drain hole is formed in the portion surrounded by each dust-removing piece. As a result, the dust-capturing unit can effectively drain water with a simple configuration while capturing and containing dust contained in the drain. In addition, since the drain hole is dismantled at the same time as the opening is opened, the disposal of dust can be made easy. Furthermore, when the opening is in a substantially closed state, one dust-removing piece supports the other dust-removing piece, which can prevent it from opening unintentionally.

[0011] The invention of claim 4 is characterized in that, in the invention of claim 1, there are two comb-shaped members, each having a pivot shaft arranged along both ends of the opening, and when the opening is closed by each comb-shaped member and the drain filter device is viewed from above, the multiple dust-removing pieces do not overlap, and a drain hole is formed in the portion surrounded by each other's dust-removing pieces. As a result, the dust-capturing unit can effectively drain water with a simple configuration while capturing and containing dust contained in the drain. In addition, since the drain hole is dismantled at the same time as the opening is opened, the disposal of dust can be made easy. Furthermore, when the opening is in a substantially closed state, the entanglement of dust across each other's dust-removing pieces can be reduced, making it easy to remove dust.

[0012] The invention of claim 5 is characterized in that, in the invention of claim 1, the plurality of dust-removing pieces are formed to be inclined toward the end of the comb-shaped member furthest from the operating handle. As a result, when disposing of captured dust, if the user holds the operating handle and orients the comb-shaped member furthest from the operating handle downwards, the dust will fall by its own weight, allowing the dust to be easily disposed of into a trash can or the like without soiling the user's hands.

[0013] The invention of claim 6 is characterized in that, in any of the inventions of claims 1 to 5, the plurality of dust-removing pieces are formed so as to gradually or stepwise narrow towards the tip when the drain filter device is viewed from above. As a result, when the captured dust is disposed of, the dust entangled in the dust-removing pieces can be easily transported toward the tip, thus enabling efficient disposal of the dust.

[0014] The invention of claim 7 is characterized in that, in any of the inventions of claims 1 to 5, the plurality of dust-removing pieces are formed such that the cross-sectional area of ​​the cross section perpendicular to the straight line toward the tip gradually or stepwise decreases toward the tip. As a result, when the captured dust is disposed of, the dust entangled in the dust-removing pieces can be easily transported toward the tip, so that the dust can be disposed of efficiently.

[0015] The invention of claim 8 is characterized in that, in the invention of claim 1, the comb-shaped member has a pivot shaft, the pivot shaft is inserted through a connecting hole provided near the opening, and is pivotally supported by the connecting hole so as to be rotatable while having sliding resistance. This prevents the comb-shaped member from rotating forcefully when the drain filter device is removed from the washing machine or dryer, and ensures that dust is reliably disposed of in a trash can or the like.

[0016] The invention of claim 9 is characterized in that, in the invention of claim 1, the comb-shaped member is supported such that, when the opening is closed, the tips of the multiple dust-removing pieces can contact a receiving portion provided on the edge of the opening. This prevents the comb-shaped member from rotating forcefully when the drain filter device is removed from the washing machine or dryer, and ensures that dust is reliably disposed of in a trash can or the like.

[0017] The invention of claim 10 is characterized in that, in the invention of claim 1, the comb-shaped member is rotatable to a state in which the surface containing the plurality of dust-removing pieces is perpendicular to the opening surface when the captured dust is being discarded. This allows for efficient disposal of the captured dust.

[0018] The invention of claim 11 is a washing machine or dryer characterized by comprising: a tank for storing washing water; a drain filter device according to any one of claims 1 to 10 through which the drain water from the tank flows via a drain channel; and a drain pipe communicating with the drain filter device for draining water to the outside. This improves the ability to capture and contain dust and reduces the installation space required for the drain filter device. [Effects of the Invention]

[0019] The invention of the filter device according to claim 1 and the invention of the washing machine or dryer according to claim 11 can improve the ability to capture and contain dust, and can reduce the installation space of the drainage filter device. The inventions according to claims 2 to 4 have a simple structure for the dust capturing part, can effectively drain water, and can capture and contain the dust contained in the drainage water.

[0020] The invention according to claim 5 can cause the captured dust to fall by its own weight when the dust is discarded, can easily discard the dust into a trash can or the like without soiling the user's hands. Further, the inventions according to claims 6 and 7 can efficiently discard the captured dust when the dust is discarded.

[0021] The inventions according to claims 8 and 9 can prevent the comb-shaped member from rotating vigorously when the drainage filter device is taken out from the washing machine or dryer, and can surely discard the dust into a trash can or the like. Further, the invention according to claim 10 can efficiently discard the captured dust when the dust is discarded.

Brief Description of the Drawings

[0022] [Figure 1] Perspective view showing a washing and drying machine in which the drainage filter device according to the present invention is installed [Figure 2] Cross-sectional view showing the internal structure of a washing and drying machine in which the drainage filter device according to the present invention is installed [Figure 3] Perspective view showing a first embodiment of the drainage filter device according to the present invention [Figure 4] Plan view showing a first embodiment of the drainage filter device according to the present invention [Figure 5] Bottom view showing a first embodiment of the drainage filter device according to the present invention [Figure 6] (a) Perspective view showing a first embodiment of the drainage filter device with the opening in a closed state (b) Perspective view showing a first embodiment of the drainage filter device with the opening in a state of being opened (c) Perspective view showing a first embodiment of the drainage filter device with the opening in an open state [Figure 7]A perspective view showing the first embodiment of a drain filter device in a state where dust and debris are being discarded. [Figure 8] (a) Plan view showing a second embodiment of the comb-shaped member (b) Plan view showing a third embodiment of the comb-shaped member (c) Plan view showing a fourth embodiment of the comb-shaped member (d) Plan view showing a fifth embodiment of the comb-shaped member [Figure 9] (a) Perspective view showing a second embodiment of the dust removal piece (b) Perspective view showing a third embodiment of the dust removal piece (c) Perspective view showing a fourth embodiment of the dust removal piece (d) Perspective view showing a fifth embodiment of the dust removal piece [Figure 10] (a) A perspective view showing a closed state of the opening in a second embodiment of the drain filter device according to the present invention. (b) A perspective view showing an open state of the opening in a second embodiment of the drain filter device according to the present invention. [Modes for carrying out the invention]

[0023] Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to these embodiments. Figure 1 is a perspective view showing a washing machine and dryer according to the present invention, and Figure 2 is a cross-sectional view showing the internal structure of the same washing machine and dryer. The dryer according to the present invention will be described below using these figures.

[0024] The washing and drying machine 20 according to the present invention has both drying and washing functions, and can be used as a dryer or a washing machine alone. It has a door 20a on the front, and a rotating drum 20b that is rotatably arranged inside a tub 20d capable of storing washing water and holds clothes, etc. Hot air generated by a blower (fan) 23 and a heating means 22 is circulated and supplied through air circulation passages 21a, 21b, and 21c to dry clothes, and a drying filter device 30 is installed on the exhaust side from the tub 20d of the air circulation passages 21a, 21b, and 21c. In addition, a cover 27 is provided on the lower right front of the dryer 20, from which a drain filter device 10 can be removed. The drain filter device 10 is in communication with the rotating drum 20b by an internal drain hose (drain passage) 25a. The drain filter device 10 is also in communication with a drain pipe 25b equipped with a drain valve 26. With this configuration, when draining water from the tank 20d, the wastewater flows through the internal drain hose (drainage channel) 25a into the drain filter device 10, where lint and other dust are removed from the wastewater. The wastewater is then discharged outside the dryer 20 through the drain pipe 25b.

[0025] Reference numeral 20c denotes a motor that rotates the rotating drum 20b, and this motor 20c rotates the rotating drum 20b during various processes such as drying, washing, rinsing, and dewatering. Furthermore, a heat exchanger can be used as the heating means 22, for example. Various types of heat exchangers can be adopted, such as heat pump type and heater type. Heating by gas combustion can also be used as the heating means 22. While the dryer 20 is described as a drum type, it is not limited to this, and various types, such as a vertical type, can be adopted.

[0026] Figure 3 is a perspective view showing a first embodiment of the drain filter device according to the present invention, Figure 4 is a plan view thereof, and Figure 5 is a bottom view thereof. The first embodiment of the drain filter device will be described below using these figures.

[0027] The drain filter device 10 is installed in a drainage channel that drains wastewater to the outside and captures dust contained in the wastewater. It has an operating handle section 1 with a handle 1a provided at one end in the longitudinal direction, and a dust capturing section 2 provided continuously with the operating handle section 1 and equipped with a dust containment case 2a.

[0028] The dust capturing unit 2 has an opening 3 through which drainage passes, and rotatable comb-shaped members 4a and 4b that substantially close the opening 3 in a grid-like manner while allowing drainage to pass through. The comb-shaped members 4a and 4b are provided with a plurality of dust-removing pieces 4c, 4c... in a continuous manner, and are configured to rotate to substantially open the opening 3 when the captured dust is to be disposed of.

[0029] As described above, the drain filter device 10 of the first embodiment can improve its ability to capture and contain dust by leaving the comb-shaped members 4a and 4b in a state that allows drainage to pass through, and by closing the opening 3 in a grid-like manner. Furthermore, when disposing of the captured dust, the device can be rotated to leave the opening 3 in a nearly open state, thereby reducing the installation space required in washing machines and dryers.

[0030] The comb-shaped members 4a and 4b consist of two parts, with pivot shafts 5a and 5b positioned along both ends of the opening 3, respectively. When the opening 3 is closed by the respective comb-shaped members 4a and 4b, and the drain filter device 10 is viewed from above, multiple dust-removing pieces 4c, 4c·· are arranged to be approximately symmetrical with respect to the center line X of the opening 3 (see Figure 5). As a result, the dust-capturing unit 2 can effectively drain water with a simple configuration while capturing and evenly collecting dust contained in the drain water. Furthermore, if the two comb-shaped members 4a and 4b are made of the same material, manufacturing costs can be reduced.

[0031] When the drain filter device 10 is viewed from above with the comb-shaped members 4a and 4b closing the opening 3, the multiple dust removal pieces 4c, 4c... overlap, and a drain hole 6 is formed in the area surrounded by the dust removal pieces 4c, 4c. This allows the dust capturing unit 2 to effectively drain water with a simple configuration while capturing and containing dust contained in the drain. Furthermore, since the drain hole 6 is dismantled simultaneously with opening the opening 3, dust disposal can be easily facilitated. In addition, when the opening 3 is almost closed, one dust removal piece 4c supports the other dust removal piece 4c, preventing it from unintentionally opening.

[0032] Multiple dust-removing pieces 4c, 4c... are formed at an angle toward the ends of the comb-shaped members 4a, 4b on the side furthest from the operating handle 1. As a result, when disposing of captured dust, if the user holds the handle 1a of the operating handle 1 and orients the comb-shaped members 4a, 4b on the side furthest from the operating handle 1 downwards, the dust will fall by its own weight, allowing for easy disposal into a trash can or the like without soiling the user's hands.

[0033] The rotating shafts 5a and 5b are inserted through connecting holes 7a and 7b provided near the opening 3, and are pivotally supported by the connecting holes 7a and 7b while maintaining sliding resistance. This prevents the comb-shaped members 4a and 4b from rotating forcefully when the drain filter device 10 is removed from the washing machine or dryer, ensuring that dust is reliably disposed of in a trash can or the like.

[0034] Furthermore, locking protrusions 8a, 8a are formed on the dust removal pieces 4c, 4c closest to the operating handle 1. These locking protrusions 8a, 8a engage with locking holes 8b formed in the dust collection case 2a, preventing the comb-shaped members 4a, 4b from rotating immediately after the drain filter device 10 is pulled out of the washing machine or dryer.

[0035] Figures 6(a) to 6(c) illustrate the rotation process of the comb-shaped members. Figure 6(a) is a perspective view of the drain filter device 10 with the opening 3 closed, viewed from the bottom. As shown in this figure, the locking protrusions 8a, 8a formed on the dust-removing pieces 4c, 4c of the comb-shaped members 4a, 4b are engaged with the locking holes 8b, and the multiple dust-removing pieces 4c, 4c... overlap, allowing drainage from the drain holes 6 formed in the area surrounded by the dust-removing pieces 4c, 4c.

[0036] Next, Figure 6(b) is a perspective view of the drain filter device 10 from the bottom side, with the opening 3 in an intermediate state of opening. As shown in this figure, when the engagement of the locking projections 8a, 8a with the locking holes 8b is released, the comb-shaped member 4a rotates clockwise and the comb-shaped member 4b rotates counterclockwise.

[0037] Next, Figure 6(c) is a perspective view of the drain filter device 10 with the opening 3 fully open, viewed from the bottom. As shown in this figure, the comb-shaped members 4a and 4b are rotatable until the surface containing the multiple dust removal pieces 4c, 4c is at least perpendicular to the surface of the opening 3 when the captured dust is being disposed of. This maximizes the area of ​​the opening 3, allowing for efficient disposal of the captured dust.

[0038] Figure 7 is a perspective view showing the drain filter device 10 in a state where dust Y is being disposed of. As shown in this figure, when the user shakes the drain filter device 10 in the direction of arrow Z, the locking projection 8a is released from engagement with the locking hole 8b, the comb-shaped members 4a and 4b rotate, and the dust Y that was placed on or attached to the multiple dust removal pieces 4c, 4c falls towards the trash can 9 and is collected. In addition, since the tips of the dust removal pieces 4c can be pointed towards the trash can 9, the dust Y that is entangled in the dust removal pieces 4c can be efficiently transferred to the trash can 9.

[0039] Figures 8(a) to 8(d) show the second to fifth embodiments of the comb-shaped member. Note that two opposing comb-shaped members are shown with different lines. In the second embodiment shown in Figure 8(a), the comb-shaped members 14a and 14b have striped discharge holes 6a formed by overlapping and staggering the arrangement of the multiple tapered dust removal pieces 54c formed on each of the comb-shaped members 14a and 14b.

[0040] In the third embodiment shown in Figure 8(b), the comb-shaped members 24a and 24b, when the opening is closed by each comb-shaped member and the drain filter device is viewed from above, do not overlap the multiple dust removal pieces 64c, and a roughly square-shaped drain hole 6b is formed in the area surrounded by each dust removal piece. This reduces the entanglement of dust across each other's dust removal pieces 64c, 64c, making it easy to remove dust.

[0041] In the fourth embodiment shown in Figure 8(c), the comb-shaped members 34a and 34b, when the opening is closed by each comb-shaped member and the drain filter device is viewed from above, do not overlap the multiple dust-removing pieces 74c, and a substantially rectangular drain hole 6c is formed in the area surrounded by the dust-removing pieces 74c. Furthermore, in the fourth embodiment, when the opening is closed, the tips of the multiple dust-removing pieces 74c are supported so that they can contact the receiving portion 5c provided on the edge of the opening. This prevents the comb-shaped members 34a and 34b from rotating forcefully when the drain filter device is removed from the washing machine or dryer, and ensures that dust is reliably disposed of in a trash can or the like.

[0042] In the fifth embodiment shown in Figure 8(d), the comb-shaped members 44a and 44b, when the opening is closed by each comb-shaped member and the drain filter device is viewed from above, do not overlap the multiple dust removal pieces 84c, and a substantially rectangular drain hole 6d is formed in the area surrounded by the dust removal pieces 84c, 84c. In the comb-shaped members 44a and 44b of the fifth embodiment, the tips of each dust removal piece are arranged to face each other.

[0043] Figures 9(a) to 9(d) show the second to fifth embodiments of the dust removal piece. The dust removal piece 14c of the second embodiment shown in Figure 9(a) is formed so that it gradually tapers towards the tip when the drain filter device is viewed from above. This makes it easier for dust to peel off the dust removal piece 14c, and allows for efficient disposal of the captured dust when it is discarded.

[0044] The dust removal piece 24c of the third embodiment shown in Figure 9(b) is formed to have a wave shape when the drain filter device is viewed from above. This prevents filamentous dust from becoming entangled in the dust removal piece 24c.

[0045] The dust removal piece 34c of the fourth embodiment shown in Figure 9(c) is formed so that it gradually narrows towards the tip when the drain filter device is viewed from above. This makes it easier for dust to detach from the dust removal piece 34c, and allows for efficient disposal of the captured dust when it is discarded.

[0046] The dust removal piece 44c of the fifth embodiment shown in Figure 9(d) is formed such that the cross-sectional area of ​​the section perpendicular to the line toward the tip gradually decreases toward the tip. This makes it easier for dust to peel off the dust removal piece 44c, and allows for efficient disposal of the captured dust when it is disposed of. It should also be noted that the cross-sectional area of ​​the section perpendicular to the line toward the tip may be formed to decrease in stages toward the tip, and this is also included in the present invention.

[0047] Figure 10(a) is a perspective view showing the closed state of the opening in a second embodiment of the drain filter device according to the present invention, and Figure 10(b) is a perspective view showing the open state of the opening in a second embodiment of the drain filter device. In the drain filter device 40 of the second embodiment, each comb-shaped member 54a, 54b is configured to rotate upward. This prevents the comb-shaped members 54a, 54b from rotating immediately after the drain filter device 40 is pulled out of the washing machine or dryer. The other configurations are the same as those of the drain filter device 10 of the first embodiment, so their explanation is omitted. [Industrial applicability]

[0048] The drain filter device according to the present invention is installed in a drain channel and used to capture dust contained in the drain. Furthermore, the washing machine or dryer according to the present invention is used as a washing machine or dryer equipped with the drain filter device. [Explanation of Symbols]

[0049] 1. Operating handle 1a Handle 2 Dust trap 2a Dust collection case 3 aperture 4a, 4b Comb-shaped members 4c Dust removal piece 5a, 5b Rotation axis 5c receiving part 6 Drain hole 7a, 7b connection hole 8a Locking protrusion 8b Locking hole 9 Trash cans 10, 40 Drainage filter device 20 Washer dryer 20a Door 20b Rotating Drum 20c motor 20d tank body 21a, 21b, 21c Air circulation path 22 Heating means 23. Air blowing means (fan) 25a Internal drain hose (drainage channel) 25b Drain pipe 26 Drain valve 27 Lid 30 Drying filter device X Chuo Line Y Dust Z arrow

Claims

1. A drain filter device installed in a drainage channel that discharges wastewater to the outside, which captures dust contained in the wastewater, The drain filter device An operating handle is provided at one end in the longitudinal direction, It has a dust-capturing section provided continuously with the aforementioned operating handle, The dust capturing unit is, An opening through which drainage passes, The opening is provided with a rotatable comb-shaped member that substantially closes the opening in a grid-like or striped pattern while allowing drainage to pass through, The comb-shaped member is Multiple dust-removing pieces are arranged in a continuous manner, A drain filter device that can rotate to partially open the opening when disposing of captured dust.

2. The comb-shaped member has two parts, with pivot axes positioned along both ends of the opening, one end and the other end. The drain filter device according to claim 1, wherein, with the opening closed by each comb-shaped member, when the drain filter device is viewed from above, the plurality of dust removal pieces are arranged to be substantially symmetrical with respect to the center line of the opening.

3. The comb-shaped member has two parts, with pivot axes positioned along both ends of the opening, one end and the other end. The drain filter device according to claim 1, wherein, when the drain filter device is viewed from above with the openings closed by each comb-shaped member, the multiple dust removal pieces overlap, and drain holes are formed in the portions surrounded by each other's dust removal pieces.

4. The comb-shaped member has two parts, with pivot axes positioned along both ends of the opening, one end and the other end. The drain filter device according to claim 1, wherein, when the drain filter device is viewed from above with the openings closed by each comb-shaped member, the multiple dust removal pieces do not overlap, and drain holes are formed in the portions surrounded by each other's dust removal pieces.

5. The drain filter device according to claim 1, wherein the multiple dust-removing pieces are formed at an angle toward the end of the comb-shaped member furthest from the operating handle.

6. A drainage filter device according to any one of claims 1 to 5, wherein the multiple dust-removing pieces are formed such that, when the drainage filter device is viewed from above, they gradually or stepwise become thinner towards the tip.

7. A drain filter device according to any one of claims 1 to 5, wherein the multiple dust-removing pieces are formed such that the cross-sectional area of ​​the cross section perpendicular to the straight line toward the tip gradually or stepwise decreases toward the tip.

8. The comb-shaped member has a pivot axis, The drain filter device according to claim 1, wherein the pivot shaft is inserted through a connecting hole provided near the opening and is pivotally supported by the connecting hole so as to be rotatable while having sliding resistance.

9. The drain filter device according to claim 1, wherein the comb-shaped member is supported such that, with the opening closed, the tips of the multiple dust-removing pieces can contact a receiving portion provided on the edge of the opening.

10. The drain filter device according to claim 1, wherein the comb-shaped member is rotatable until the surface containing the multiple dust-removing pieces is perpendicular to the opening surface when the captured dust is to be discarded.

11. A tank for storing washing water, A drain filter device according to any one of claims 1 to 10, wherein drainage from the tank body flows through a drainage channel, A washing machine or dryer having a drain pipe that communicates with the drain filter device and drains water to the outside.

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