JP6905708B2 - Filter device with cleaning mechanism and cloth drying device using it - Google Patents

Description

The present invention relates to a filter device used in a dryer, a washer / dryer, etc., which can easily clean a filter provided in a drying air duct, and a cloth drying device using the same.

As a method of cleaning the drying filter in the cloth drying device, many methods of automatically cleaning the inside of the device have been proposed. Patent Document 1 is a method of cleaning a filter by arranging a mechanical cleaning device in the vicinity of the filter. In addition to this, a cleaning method using water and a cleaning method using wind have also been proposed.

In addition to the automatic cleaning method, Patent Document 2 proposes a filter unit that is detachable from the air passage and is provided with a cleaning mechanism in the vicinity of the filter. By attaching and detaching the filter and cleaning the filter with a cleaning mechanism installed nearby, operability during cleaning is improved.

Japanese Unexamined Patent Publication No. 2011-130789 Jitsukaisho 60-179296

However, the method of automatically cleaning the drying filter drives the cleaning mechanism not only in the method of arranging the mechanical cleaning device disclosed in Patent Document 1 but also in the cleaning method using water and the cleaning method using wind. This is a method that requires a drive mechanism to operate, complicates the structure, and is costly. In addition, it is necessary to always secure and maintain sufficient cleaning performance for automatic filter cleaning, but in reality, the cleaning performance may deteriorate over time, or the cleaning performance may not be completely removed depending on the type of lint. In such a case, the filter portion is manually cleaned, but the fact is that the manual cleaning of the filter portion becomes complicated by arranging the automatic cleaning mechanism.

Further, for the purpose of improving the manual cleaning property, Patent Document 2 discloses a method provided with a manual cleaning mechanism. In this method, a cleaning mechanism that scrapes off the lint on the filter is integrally arranged in the removable filter portion. However, although the lint on the filter can be easily removed by moving the scraping member after attaching / detaching the filter, there is a problem that the lint on the filter is likely to fall off or scatter during attachment / detachment and cleaning.

An object of the present invention is to provide a filter device with a cleaning mechanism that suppresses the occurrence of lint scattering, and a cloth drying device using the same.

The present invention relates to a filter installed in an air passage for sending dry air, a cleaning means for cleaning the lint captured by the filter, and the air passage including a portion located on the upstream side of the filter. comprising a portion, wherein the filter, a portion of said cleaning means and said air flow passage is a removable unit capable of detachably attached to instrumentation Okimoto body integrally, the detachable unit, the air passage and the filter and a part wall surfaces of, Ri cup-shaped der having an opening, said cleaning means comprises a brush-like or blade-like cleaning unit is moved along the filter surface of the filter, one of the air passage The unit includes a retracting unit that retracts the cleaning unit to a position that does not overlap the filter surface of the filter when blowing air, and the cleaning unit retracts the cleaning unit when the attachment / detachment unit is installed on the apparatus main body. It is characterized in that it is retracted by a cleaning unit retracting mechanism that retracts and holds the unit.

According to the configuration of the present invention, it is possible to provide a filter device with a cleaning mechanism that suppresses the occurrence of lint scattering and a cloth drying device using the same.

It is a block diagram which shows the washing dryer equipped with the cloth drying apparatus using the filter apparatus with a cleaning mechanism of 1st Embodiment. The filter device with a cleaning mechanism of the first embodiment is shown, (a) is a state of being attached to a cloth drying device, (b) is a state at the time of transportation, and (c) is a state at the time of cleaning the filter. It is sectional drawing which shows the state which attached the filter device with a cleaning mechanism of 1st Embodiment to a cloth drying device. It is a figure explaining an example of the mounting arrangement of the filter device with a cleaning mechanism which concerns on 2nd Embodiment. The filter device with a cleaning mechanism of the second embodiment is shown, (a) is a state of being attached to a cloth drying device, (b) is a state at the time of transportation, and (c) is a state at the time of cleaning the filter. The cross-sectional view of the cleaning operation mechanism of the filter device with a cleaning mechanism which concerns on 2nd Embodiment is shown, (a) is before cleaning, (b) is after cleaning. A cross-sectional view of the filter device with a cleaning mechanism according to the third embodiment is shown, where (a) is before cleaning and (b) is after cleaning. The cross-sectional view of the filter device with a cleaning mechanism of 4th Embodiment is shown, (a) is before cleaning, (b) is after cleaning. The cross-sectional view of the filter device with a cleaning mechanism of 5th Embodiment is shown, (a) is before cleaning, (b) is after cleaning. The cross-sectional view of the filter device with a cleaning mechanism of the sixth embodiment is shown, (a) is before cleaning, and (b) is after cleaning. The cross-sectional view of the filter device with a cleaning mechanism of the 7th embodiment is shown, (a) is a state at the time of transportation, and (b) is a state attached to a cloth drying device. It is sectional drawing which shows the state which attached the filter device with the cleaning mechanism of 8th Embodiment to the cloth drying device.

Hereinafter, embodiments of a filter device with a cleaning mechanism (hereinafter, abbreviated as a filter device) using the present invention and a cloth drying device using the same will be described. Although the washing / drying machine provided with the cloth drying device will be described as an example in FIG. 1, it can also be applied to a drying device having only a drying function. Further, in each of the following embodiments, the same components are designated by the same reference numerals and duplicated description will be omitted.

(First Embodiment)
FIG. 1 is a configuration diagram showing a washer / dryer equipped with a cloth dryer using the filter device with a cleaning mechanism of the first embodiment. Note that FIG. 1 schematically illustrates a horizontal rotary drum type washer-dryer F1 equipped with a cloth drying device 100.

The washer / dryer F1 includes a cloth drying device 100 in the housing 1. The cloth drying device 100 includes an outer tank 2 that is vibration-proof supported in the housing 1, a rotating drum 3 that is rotatably supported in the outer tank 2, a drum motor 4 that rotationally drives the rotating drum 3, and a blower unit. 5. It is configured to include a ventilation duct 6 and the like.

The outer tank 2 has a substantially cylindrical shape, and the rotating drum 3 is coaxially included, and the front surface is open. Further, a rubber bellows (not shown) is provided in the opening of the outer tub 2, and the outer tub 2 is water-sealed by closing the door 16 attached to the housing 1 via a hinge. There is.

The rotary drum 3 is a cylindrical washing / dehydrating tub that is rotatably supported, and has a large number of through holes (not shown) for water passage and ventilation in its outer peripheral wall and bottom wall. Further, the rotary drum 3 is provided with a fluid balancer (not shown) that rotates integrally with the rotary drum 3, a lifter (not shown) that lifts the laundry when the rotary drum 3 rotates, and the like.

The blower unit 5 includes a blower 14 and a heater (not shown). The blower 14 is configured to include, for example, a drive motor and a fan (impeller) in a motor case. The heater (not shown) is provided in the motor case to heat the air sent from the fan and send it to the rotating drum 3.

The air duct 6 is a flow path connecting the bottom side of the outer tub 2 and the upper part of the outer tub 2, extends upward in the vertical direction on the back surface of the outer tub 2, and faces forward above the outer tub 2. It extends. Further, the air blowing duct 6 is provided with a dehumidifying mechanism 7, a filter device 8A, and a blowing unit 5 in this order from the upstream side with respect to the air flow. As the dehumidifying mechanism 7, various methods such as a water-cooled type, an air-cooled type, and a heat pump type can be applied.

Further, the washer / dryer F1 includes a water supply port 18 and a drain port 19. The water supply port 18 is configured to inject tap water supplied from a tap (not shown) into the outer tank 2. The drain port 19 is configured to drain the washing water in the outer tub 2 to the outside of the machine.

In the cloth drying device 100, cloth (clothes, etc.) is thrown into the rotary drum 3 through the door 16. The rotating drum 3 is rotated by a drum motor 4 directly connected to the rotating drum 3 to agitate the cloth, and the cloth is dried by the air (dry air) blown from the blower 14. As the air blown to the cloth, dry warm air is used by a heater (not shown). The dry air circulates through the air duct 6 (air passage) provided in the device by the route of the arrow shown in FIG.

The filter device 8A of the first embodiment is arranged on the upper part of the cloth drying device 100. Further, the filter device 8A is configured to be removable from the cloth drying device 100. For example, the filter device 8A can be removed by pulling it upward from the top surface 1a of the housing 1 (see the alternate long and short dash line in FIG. 1).

By the way, lint or the like called lint 9 (dust generated from the cloth collected in the air passage) flows into the air duct 6 of the cloth drying device 100. It is not preferable that the lint 9 generated from the cloth reattaches to the cloth being dried as lint. Further, if a large amount of the lint 9 flows into the blower 14, it may cause a failure of the blower 14. Therefore, a mesh-shaped filter 21A for removing the lint 9 is installed in the air duct 6.

In addition, the cloth drying device 100 dries the cloth in a short time by blowing a very strong air on the cloth. Therefore, the amount of air flowing through the air duct 6 is large, and although it depends on the state of the cloth to be dried, a large amount of lint 9 adheres to the filter 21A installed in the air duct 6 in a relatively short time. When the lint 9 adheres to the filter 21A, the ventilation efficiency is lowered, so that the drying efficiency is also lowered and the time required for drying is lengthened. In addition, the energy (electric power) required for drying also increases. In order to realize efficient drying of the cloth, it is necessary to constantly remove the lint 9 from the filter 21A installed in the air duct 6. Since it is necessary to clean the filter frequently in order to ensure the performance, the filter cleaning work is a heavy load on the maintenance of the cloth drying device.

Therefore, this embodiment is provided with a cleaning mechanism that does not cause scattering of lint 9 by a simple method for the purpose of suppressing a large load on maintenance and always operating the cloth drying device 100 efficiently. It provides a filter device 8A.

2A and 2B show a filter device with a cleaning mechanism according to the first embodiment, in which FIG. 2A shows a state of being attached to a cloth drying device, FIG. 2B shows a state during transportation, and FIG. 2C shows a state during filter cleaning.
As shown in FIG. 2A, the filter device 8A removes the lint 9 adhering to the filter 21A, and is provided in a linearly provided air duct 6. In FIG. 2A, only a part of the air duct 6 is shown on the paper, and the portion indicated by hatching is a part attached to and detached from the air duct 6. In addition, the wind at the time of blowing flows in the direction of the arrow (from right to left in the figure).

The filter device 8A includes a filter 21A that captures the lint 9, a pipe portion 22 (a part of the air passage) located on the upstream side of the filter 21A, and a cleaning portion 23 (cleaning) that cleans the lint 9 captured by the filter 21A. Means) and. Further, the filter 21A and the pipe portion 22 are integrally formed so as to be detachably attached to and detachable from the air duct 6 (the device main body and other parts of the air passage).

The filter 21A has a mesh shape (mesh shape) formed in a substantially rectangular shape, and the filter surface 21s of the filter 21A is arranged so as to be orthogonal to the axial direction g of the air duct 6. The planar shape of the filter 21A is not limited to a rectangular shape, and can be appropriately changed according to the shape of the air duct 6.

The pipe portion 22 includes a tubular body 22a forming the peripheral wall of the air duct 6, a flange portion 22b formed at the downstream end of the tubular body 22a, and a retracting portion 22c for retracting the cleaning portion 23 from the air passage. ,have. Further, when the pipe portion 22 is attached to the ventilation duct 6, airtightness is ensured through packing or the like so that air does not leak from the boundary portion between the pipe portion 22 and the ventilation duct 6. It is configured.

A filter 21A is attached to one end of the tubular body 22a in the axial direction g, and an opening 22d is formed at the other end of the axial direction g so as to face the filter 21A. Further, a covering portion 24 is integrally formed on the upper portion of the tubular body 22a.

The flange portion 22b is formed so as to bend inward with respect to the tubular body 22a, and the filter 21A is fixed to the edge of the flange portion 22b.

The retracting portion 22c is formed in a concave shape in a cross-sectional view, and has a volume capable of accommodating the cleaning portion 23. Further, on the upstream side of the retracting portion 22c, a protruding portion 22e protruding from the inner peripheral wall surface of the tubular body 22a is formed. The protrusion 22e has a substantially triangular shape in a cross-sectional view, and has a tapered surface 22f so that the amount of protrusion increases from the upstream side to the downstream side. By providing the tapered surface 22, it is possible to prevent excessive resistance from being generated against the air passing through the pipe portion 22. Further, the protrusion 22e is formed along the cleaning portion 23 (along the direction perpendicular to the paper surface). When the cleaning unit 23 is housed in the retracting unit 22c, the cleaning unit 23 and the filter 21A are arranged so as not to overlap each other in the axial direction g. As a result, it is possible to prevent the cleaning unit 23 from obstructing the flow of wind.

The cleaning unit 23 is configured by planting a brush member (brush) 23b on the entire outer peripheral surface of the rod-shaped core member 23a. Further, the cleaning unit 23 is configured to be movable along the filter surface 21s on the upstream side of the filter 21A. The operation mechanism of the cleaning unit 23 will be described later. As the cleaning unit 23 moves on the filter 21A (moves while rotating), the lint 9 on the filter 21A is scraped (captured) by the brush member 23b of the cleaning unit 23.

As shown by the hatched portion in FIG. 2A, the filter device 8A is configured to have a cup shape (cup type) having an opening 22d with the filter 21A and the pipe portion 22 as wall surfaces. Further, the filter 21A, the pipe portion 22, and the cleaning portion 23 are integrally configured as a detachable portion 12 that can be attached to and detached from the cloth drying device 100 (device main body, see FIG. 1).

The attachment / detachment portion 12 includes a pipe portion 22 (a part of the air passage) on the upstream side of the filter 21A, and is a portion indicated by hatching in the drawing. Although FIG. 2A shows a cross section of the pipe portion 22, it is not shown, but the air passage wall surfaces on the front side and the back side of the paper surface having the same length as the hatched part are also attached and detached integrally. Further, the detachable portion 12 is a cup type having an opening 22d on the windward side of the pipe portion 22 and having the filter surface 21s of the filter 21A as the bottom surface (the surface facing the opening). A cleaning unit 23 and a retracting unit 22c for storing the cleaning unit 23 are provided at one end (upper side in the drawing) of the filter 21A in a direction orthogonal to the axial direction g.

FIG. 2B schematically shows a situation when the detachable portion 12 is removed from the air duct 6 and the detachable portion 12 is carried. In addition, in FIG. 2B, the cover portion 24 is not shown (the same applies to FIG. 2C). As described above, the detachable portion 12 has a cup shape formed by a surface formed of the tube portion 22 and a surface formed of the filter 21A. Therefore, by carrying the opening 22d upward, the lint 9 on the filter 21A is less likely to peel off, and even if the lint 9 peels off from the filter 21A, it is held in the cup of the detachable portion 12. be able to.

FIG. 2C schematically shows a situation in which the lint 9 is discarded from the filter 21A into a dust box 10 or the like. Cleaning of the filter 21A is performed by moving the cleaning unit 23 parallel to the filter surface 21s of the filter 21A on the dust box 10 with the opening 22d facing downward. The thick solid arrow in FIG. 2C indicates the direction of movement of the pipe portion 22 (a part of the air passage) and the cleaning portion 23 during cleaning. In the case of cleaning, the pipe portion 22 may be fixed (held) and the cleaning portion 23 may be moved in the arrow direction, or the cleaning portion 23 may be fixed and the pipe portion 22 may be moved in the arrow direction. , The pipe portion 22 and the cleaning portion 23 may be moved respectively. Further, the cleaning unit 23 may move while rotating on the filter 21A.

As described above, since the attachment / detachment portion 12 has a cup shape so that the cleaning portion 23 surrounds the filter 21A and the pipe portion 22, the lint 9 scraped off from the filter 21A by the cleaning portion 23 scatters. There is no need to worry, and it is possible to dispose of the waste in the dust box 10 through the opening 22d. In the present embodiment, the filter 21A has been described as being cleaned by a manual lever (not shown) or the like, but of course, a method in which a motor and a switch are installed and the filter 21A is electrically cleaned is also possible.

As shown in FIG. 1, considering the maintainability of the filter 21A and the like, the upper part of the illustrated cloth drying device 100 is suitable for the installation position of the filter device 8A of the present embodiment. In particular, in a device such as a washer / dryer F1 that requires water to be stored in the rotary drum 3, it is desirable that the blower 14 (blower unit 5), the filter 21A, and the cleaning unit 23 be installed at a high position where the water does not affect them.

In the cloth drying device 100 of FIG. 1, another filter (fixed filter 13) is arranged between the filter device 8A and the blower unit 5. Actually, it is considered that the lint 9 flowing in the air duct 6 can be almost recovered by the filter 21A of the filter device 8A of the present embodiment, but in the mechanism for attaching and detaching and cleaning the filter 21A as in the present embodiment, by any chance. In this case, the filter 21A may be damaged. Further, in the structure in which the pipe portion 22 (a part of the air passage) is attached / detached as in the present embodiment, the air may be blown with the detachable portion 12 removed. Actually, it is desirable to provide attachment / detachment detection and control of the attachment / detachment portion 12 so that the ventilation operation is not performed when the attachment / detachment portion 12 is removed, but there is a risk of detection failure or malfunction in control. Therefore, the cloth drying device 100 of the present embodiment is based on a structure in which a fixed filter 13 is installed between the filter device 8A and the blower 14.

In reality, since the air blowing operation is performed by attaching the filter device 8A of the present embodiment, cleaning of the fixed filter 13 is almost unnecessary and does not impose a heavy burden on maintenance. However, if there is a fixed filter 13 in the air duct 6 (air passage), there is a possibility that lint 9 or the like leaking from the upstream filter 21A will eventually adhere and accumulate, and the air will be hindered. Therefore, in the cloth drying device 100 of the present embodiment, by arranging the fixed filter 13 in the immediate vicinity of the filter device 8A, it becomes easier to clean from the attachment / detachment portion 12 of the filter device 8A. When applying the filter device 8A of the present embodiment to an actual machine, it is important to take such consideration.

FIG. 3 is a cross-sectional view showing a state in which the filter device with a cleaning mechanism of the first embodiment is attached to the cloth drying device.
As shown in FIG. 3, the filter device 8A is provided with a covering portion 24 on the upper portion of the attachment / detachment portion 12. The covering portion 24 is configured so as not to protrude from the housing 1 when attached to the housing 1. Further, the covering portion 24 is made of a plate-shaped member, and a brim portion 24a protruding outward from the outer peripheral edge portion thereof is formed.

Further, the filter device 8A includes operation units 23c and 23c for operating the cleaning unit 23. The operation portion 23c has a substantially rod shape and is attached to both ends of the shaft portion 23a of the cleaning portion 23. Further, the shaft portion 23a penetrates the guide hole 22g formed in the pipe portion 22 so that the operation portion 23c is arranged outside the pipe portion 22. The guide hole 22g is formed in a long hole shape and has a length that allows the cleaning portion 23 to move the entire surface of the filter 21A. In the present embodiment, the case where the operation portions 23c are provided on both sides has been described as an example, but the guide hole 22g is provided only on one side of the pipe portion 22, and the operation portion 23c is provided only on one side. There may be. In that case, a groove on which the shaft portion 23a slides may be provided on the side that does not penetrate.

It is desirable that the operating portion 23c for moving the cleaning portion 23 is installed inside the covering portion 24 (lower side of the brim portion 24a in FIG. 3). In this way, when the operation unit 23c is arranged inside (lower side) of the cover portion 24 and the attachment / detachment portion 12 is installed in the cloth drying device 100 (washing / drying machine F1, see FIG. 1), the operation unit 23c becomes It is configured to be stored in the cloth drying device 100 (housing 1). As a result, the cleaning unit 23 cannot be operated with the attachment / detachment unit 12 attached to the cloth drying device 100, and erroneous operation can be prevented.

Further, when the detachable portion 12 is assembled to the cloth drying device 100, the cleaning portion 23 is configured to return to the retracted position (standby position). That is, in the cloth drying device 100, guide plates 25 and 25 (cleaning unit evacuation mechanism) are formed so that the lower surface of the operation unit 23c comes into contact with the positions corresponding to the operation units 23c and 23c and pushes up the operation unit 23c. There is. The upper end (height) of the guide plate 25 is located at a height at which the cleaning portion 23 can be pushed up to a position where it does not overlap with the filter 21A.

By the way, if the cleaning unit 23 is not located on the evacuation unit 22c and the cleaning unit 23 is located on the filter 21A, the ventilation will be adversely affected. Therefore, in the present embodiment, for example, even if the attachment / detachment portion 12 is attached to the cloth drying device 100 in a state where the cleaning portion 23 is located at the position indicated by the alternate long and short dash line, the operation portion 23c is provided by the guide plate 25. Since it is pushed up to a position where it does not overlap with the filter 21A, it is possible to surely prevent an adverse effect on the ventilation.

Further, instead of the configuration shown in FIG. 3, the attachment / detachment portion 12 may not be attached to the cloth drying device 100 when the cleaning portion 23 is not located at the evacuation portion 22c. Even in such a configuration, the cleaning unit 23 does not remain on the filter 21A (does not overlap), and it is possible to prevent the air from being adversely affected. As such a configuration, although not shown, for example, the cloth drying device 100 is provided with a fitting portion that can be fitted only at a position (upper end portion) where the operation portion 23c does not overlap with the filter 21A. Can be achieved by.

The filter device 8A of the first embodiment configured in this way includes a filter 21A, a cleaning unit 23 for cleaning the lint 9 captured by the filter 21A, and a pipe unit 22 located on the upstream side of the filter 21A. Be prepared. Further, the filter 21A, the cleaning portion 23, and the pipe portion 22 are detachable portions 12 that can be integrally attached to and detached from the cloth drying device 100. The detachable portion 12 has a cup shape having an opening 22d with the filter 21A and the pipe portion 22 as wall surfaces. According to this, the lint 9 scraped off from the filter 21A by the cleaning unit 23 does not have to be scattered, and can be disposed of in the dust box 10 from the opening 22d, which facilitates handling. Further, in the filter device 8A, since the cleaning portion 23 is only provided in the cup-shaped form of the filter 21A and the pipe portion 22, it can be realized with a simple configuration.

In addition, the first embodiment has a cleaning unit 23 (brush-shaped cleaning unit) provided with a brush member 23b that moves along the filter surface 21s of the filter 21A. According to this, the lint 9 adhering to the filter 21A can be removed with a simple configuration.

(Second Embodiment)
FIG. 4 is a diagram illustrating an example of mounting arrangement of the filter device with a cleaning mechanism according to the second embodiment. Note that FIG. 4 is a plan view of the inside of the washer / dryer F1 (cloth dryer 100) when viewed from above.
By the way, as described with reference to FIG. 1, when the filter device 8A with a cleaning mechanism of the present embodiment is mounted on the cloth drying device 100, the upper part of the device is appropriate. In the cloth drying device 100, it is necessary to be able to dry as many cloths as possible within a limited device size, so it is desirable to mount and arrange the rotating drum 3 as large as possible. The mounting space left when the large rotating drum 3 is arranged in the box-shaped device includes the space beside the drum motor 4 (see FIG. 1) on the back side of the device and the cylindrical rotating drum 3. It is a space on the side surface of the device that is diagonally above. Under these circumstances, it is effective for mounting that the arrangement shape of the air ducts 6 before and after the filter device 8B in the present embodiment is generally the arrangement shown in FIG. 4 in consideration of the miniaturization of the device.

First, the mounting location of the blower 14 that sends air to the rotary drum 3 is a space on the side surface of the device that is diagonally above the cylindrical rotary drum 3. The air duct 6 is arranged so as to extend vertically to the back surface of the device as a blow path for sending the air discharged from the rotary drum 3 to the blower 14 above the device. Under this mounting arrangement condition shown in FIG. 4, the filter device 8B of the present embodiment can be mounted at a position where the air duct 6 bends at a right angle (region R surrounded by a broken line). It is relatively easy to arrange the filter device 8B, which will be described later, at the bent portion of the air duct 6.

FIG. 5 shows a filter device with a cleaning mechanism of the second embodiment, (a) is a state attached to the cloth drying device, (b) is a state when the cloth drying device is transported, and (c) filter cleaning. The state of time. Note that, in FIG. 5A, as in the first embodiment, a part of the air duct 6 is shown, and the portion shown by the hatched portion is a portion to be attached / detached.

As shown in FIG. 5A, the filter device 8B of the second embodiment captures the lint 9, the pipe portion 32 (a part of the air passage), and the lint 9 captured by the filter 21B. It is provided with a cleaning unit 33 (cleaning means) for cleaning. The filter 21B is the same as the filter 21A of the first embodiment.

The pipe portion 32 has a tubular body 32a forming the peripheral wall of the air duct 6 and a retracting portion 32b formed on the downstream side of the tubular body 32a. Further, when the pipe portion 32 is attached to the ventilation duct 6, airtightness is ensured through packing or the like so that air does not leak from the boundary portion between the pipe portion 32 and the ventilation duct 6. It is configured.

The tubular body 32a has a flow path bent by about 90 degrees, a filter 21B is attached to one end, and an opening 32d is formed at the other end. The filter surface 21s of the filter 21B and the surface of the opening 32d are orthogonal to each other. Although not shown, a covering portion 24 (see FIG. 2) described in the first embodiment is integrally formed with the tubular body 32a on the upper portion of the tubular body 32a.

The cleaning portion 33 is configured such that a blade member 33b capable of scraping the lint 9 is fixed to the base portion 33a. Since the installation width can be reduced by using the blade member 33b, the installation area of the filter 21B can be increased as compared with the rotary type. Further, the cleaning unit 33 is provided with a cleaning operation mechanism so that the cleaning unit 33 can move along the filter surface 21s on the upstream side of the filter 21B. When the cleaning unit 33 moves on the filter 21B, the lint 9 on the filter 21B is scraped (captured) by the blade member 33b of the cleaning unit 33.

As shown by the hatched portion in FIG. 5A, the filter device 8B is configured to have a cup shape (cup type) having an opening 32d with the filter 21B and the pipe portion 32 as wall surfaces. Further, the filter 21B, the pipe portion 32, and the cleaning portion 33 are integrally configured, and are configured as a detachable portion 12 that can be attached to and detached from the cloth drying device 100 (device main body).

As shown in FIG. 5A, in the air blowing duct 6, the air at the time of blowing flows in the direction of the arrow (from the bottom to the left in the figure). The air duct 6 has a structure that bends in front of the filter 21B. The filter 21B and the pipe portion 32 (a part of the air passage) on the upstream side of the filter 21B are integrally attached to and detached from the air duct 6. The attachment / detachment portion 12 includes a pipe portion 32 on the upstream side of the filter 21B, and is a portion indicated by hatching in the drawing. Although FIG. 5A is not shown because it shows a cross section of the air duct 6, the wall surfaces on the front side and the back side of the paper surface having the same length as the hatched portion are also attached and detached integrally. The detachable portion 12 has an opening 32d on the windward side of the air duct 6, and has a cup type having the filter surface 21s of the filter 21B as a side surface (a surface orthogonal to the opening 32d). A cleaning unit 33 and a retracting unit 32b for storing the cleaning unit 33 are provided at one end of the filter 21B. The attachment / detachment portion 12 is attached to the air duct 6 of the cloth drying device 100, and the cleaning unit 33 is held at the position of the evacuation unit 32b in a state where the air is blown.

As shown in FIG. 5 (b), since the detachable portion 12 removed from the air duct 6 (see FIG. 5 (a)) has a cup shape, the detachable portion 12 is removed from the air duct 6 and transported. In this case, by carrying the lint 9 with the opening 32d facing upward, the lint 9 on the filter 21B is not easily peeled off, and even if the lint 9 is peeled off from the filter 21B, it can be held in the cup.

As shown in FIG. 5C, when cleaning the filter 21B, the opening 32d is directed downward on the dust box 10, and the blade member 33b of the cleaning unit 33 is vertically moved onto the filter surface 21s of the filter 21B. It is done by moving in parallel. The thick solid arrow shown in FIG. 5C indicates the direction in which the cleaning portion 33 (or the pipe portion 32) is moved during cleaning. Since the detachable portion 12 has a cup shape that surrounds the cleaning portion 33 by the filter 21B and the pipe portion 32, the lint 9 scraped off from the filter 21B by the cleaning portion 33 does not have to be scattered, and the opening is open. It is easy to dispose of from 32d into the dust box 10. In the case of this structure, since the filter surface 21s of the filter 21B is formed on the surface adjacent to the opening 32d and can be cleaned toward the opening 32d, the lint 9 recovered from the filter 21B can be smoothly processed as compared with the first embodiment. Easy to fall into the dust box 10. In the case of the first embodiment shown in FIG. 2, the lint 9 peeled off from the filter 21A may adhere to the wall surface, the cleaning portion 23, or the like. In the case of the method of scraping and cleaning the lint 9 on the filter 21B, the structure of FIG. 5 in which the opening 32d is arranged on the side surface of the filter 21B is effective, and a relatively simple cleaning portion 33 such as a blade member 33b is applied. It becomes easier to do. Further, the cleaning unit 33, which does not require a rotational operation as compared with the cleaning unit 23 of the first embodiment, is slightly inferior in cleanability as compared with the cleaning unit 23, but the operation of the cleaning mechanism is simple. It has the advantage of simplifying the structure of the operating mechanism.

In the second embodiment, as shown in FIG. 5A, the air duct 6 is provided at a bent position. In this way, the methods of FIGS. 2 (a) and 5 (a) can be selected according to the shape of the air duct 6 near the installation position of the filter 21B in the cloth drying device 100. Further, as for the cleaning means such as the brush member 23b of the cleaning unit 23 and the blade member 33b of the cleaning unit 33, an appropriate method can be selected in consideration of the complexity of the mechanism and the cleanability. Further, since various other filter cleaning methods can be applied to the present embodiment, it is desirable to select the lint 9 to be cleaned according to the type of lint 9 to be cleaned and the adhesion state.

As described above, in the filter device 8B with a cleaning mechanism of the second embodiment, since the attachment / detachment portion 12 has a cup shape, it is removed from the cloth drying device 100, transported, and further on the dust box 10. Even when the filter is cleaned by the cleaning means of the above, it is possible to prevent the lint 9 adhering to the filter 21B from scattering. In order to more reliably prevent the lint 9 from scattering from the filter 21B after being removed from the cloth drying device 100, it is effective to provide a lid that closes the cup-shaped opening.

For example, the lid provided in the opening 32d in the cup shape is configured to be opened in conjunction with the operation lever of the cleaning mechanism, so that the operability at the time of cleaning is improved. Further, by opening the lid even when the cloth drying device 100 is attached, it is possible to eliminate operation mistakes and improve operability.

6A and 6B show a cross-sectional view of a cleaning operation mechanism of the filter device with a cleaning mechanism according to the second embodiment, where FIG. 6A is before cleaning and FIG. 6B is after cleaning. As the mechanism of the portion for operating the cleaning portion, several configurations can be adopted according to the shape of the air duct 6 and the arrangement of the filter 21B. Since FIG. 6 is based on the second embodiment described with reference to FIG. 5, the detachable portion 12 is bent, and the cleaning portion 33 (blade member 33b) that moves on the filter 21B as a cleaning means. It has become.

As shown in FIG. 6A, the cleaning operation mechanism 61 (cleaning means) of the filter device 8B is a linear motion type. In this cleaning operation mechanism 61, a rod-shaped member 61a fixed to the cleaning portion 33, a handle portion 61b formed at the tip of the rod-shaped member 61a, and a rod-shaped member 61a formed in the pipe portion 32 are slidably inserted. It is composed of an insertion hole 32e and a seal member 61c provided in a gap between the rod-shaped member 61a and the insertion hole 32e.

The insertion hole 32e is formed on the wall surface on the side where the retracting portion 32b is formed, and penetrates in a direction parallel to the filter surface 21s. Further, by making the insertion hole 32e circular, the cross section of the insertion hole 32e can be made smaller than in the case of making it into a flat plate shape, and a mechanism for preventing air leakage at the time of blowing air can be easily configured.

As shown in FIG. 6B, the rod-shaped member 61a is configured to be able to advance and retreat with respect to the insertion hole 32e, and the cleaning portion 33 is moved from one end (upper end in the drawing) to the other end (lower end in the drawing) of the filter 21B. Has a length that can be used. The rod-shaped member 61a protrudes outward from the pipe portion 32 with the maximum length when the cleaning portion 33 is located at the retracting portion 32b.

The handle portion 61b is formed of a member having a diameter (cross section) larger than the diameter of the insertion hole 32e. As a result, it is possible to prevent the rod-shaped member 61a from coming out of the insertion hole 32e and prevent the cleaning portion 33 from falling out of the pipe portion 32.

As described above, the cleaning operation mechanism 61 is a mechanism for pushing out the blade member 33b by arranging the rod-shaped member 61a on the back surface of the blade member 33b and pushing the handle portion 61b provided behind the rod-shaped member 61a. This structure is the simplest and simplest structure for moving the blade member 33b.

(Third Embodiment)
7A and 7B show a cross-sectional view of the filter device with a cleaning mechanism according to the third embodiment, in which FIG. 7A is before cleaning and FIG. 7B is after cleaning. Note that FIG. 7 shows a state in which the filter 21B is viewed from the inside front.
As shown in FIG. 7A, the cleaning operation mechanism 62 (cleaning means) of the filter device 8C is another linear motion system. The cleaning operation mechanism 62 is formed on a rod-shaped member 62a protruding from both ends in the longitudinal direction of the cleaning portion 33 (translation operating body), handle portions 62b and 62b attached to both ends of the rod-shaped member 62a, and a pipe portion 32. It is composed of slide guides 32f and 32f through which the rod-shaped member 62a is slidably inserted, and a seal member 62c provided between the rod-shaped member 62a and the slide guide 32f. The handle portion 62b is configured to be located outside the pipe portion 32.

As shown in FIG. 7B, the slide guide 32f can slidably guide the rod-shaped member 62a and move the cleaning portion 33 from one end (upper end in the drawing) to the other end (lower end in the drawing) of the filter 21B. It has a length that can be used.

As described above, in the cleaning operation mechanism 62 (cleaning means), the rod-shaped members 62a and the handles 62b and 62b are attached to the sides of the blade member 33b, and the handles 62b and 62b are attached along the wall surface (side surface) of the air duct 6. The cleaning unit 33 is operated by sliding the cleaning unit 33. In this configuration, the cleaning portion 33 can be operated without the handle portion 62b protruding significantly from the pipe portion 32, and the lint 9 adhering to the filter 21B can be removed.

In the third embodiment, the handle portion 62b does not protrude outward for a long time in a state where the cleaning portion 33 is retracted to the retracting portion 32b. Therefore, it is not necessary to secure a space for storing the pushing rod-shaped member 61a as shown in FIG. 6 near the air duct 6 which is the mounting portion in the cloth drying device 100.

(Fourth Embodiment)
8A and 8B show a cross-sectional view of the filter device with a cleaning mechanism according to the fourth embodiment, in which FIG. 8A is before cleaning and FIG. 8B is after cleaning.
As shown in FIG. 8A, the cleaning operation mechanism 63 (cleaning means) of the filter device 8D is still another linear motion system. The cleaning operation mechanism 63 protrudes from both ends in the longitudinal direction of the cleaning portion 33 (translation operating body), extends along the side wall of the pipe portion 32, and further extends to the outside of the pipe portion 32 at the opening 32d with the arm portion 63a. , The handle portions 63b and 63b attached to both ends of the arm portion 63a. The handle portion 63b is configured to be located outside the pipe portion 32.

The arm portion 63a is formed at a position that does not overlap with the filter 21B in a state where the cleaning portion 33 is located at the retracting portion 32b. As a result, it is possible to prevent adverse effects on the ventilation.

As described above, the cleaning operation mechanism 63 (cleaning means) has a structure in which a substantially U-shaped nested structure is formed in the air duct 6 and a blade member 33b (cleaning portion 33) is attached to the nested structure. As shown in FIG. 8B, by extracting the U-shaped nested structure at the time of cleaning, the lint 9 on the filter 21B can be scraped off by the blade member 33b. Further, in the case of this structure, since the nested portion can be taken out from the air duct 6, the cleaning unit 33 alone can be cleaned, and even if the filter 21B forming the cup shape is clogged with the lint 9. The structure is easy to clean. Further, when the cleaning unit 33 is attached to the air duct 6 in the cloth drying device 100, the cleaning unit 33 has a nested structure in the air duct 6, so that the handle portion 63b to be operated hardly protrudes from the air duct 6. It is also possible to do. Thereby, the airtight structure between the air-tight duct 6 and the pipe portion 32 can be simplified.

In the fourth embodiment, it is not necessary to form the slide guide 32f as shown in FIG. 7, and it is not necessary to provide the slide guide 32f with a sealing member 62c to prevent the wind from leaking. It is possible to prevent leakage.

(Fifth Embodiment)
9A and 9B show a cross-sectional view of the filter device with a cleaning mechanism according to the fifth embodiment, in which FIG. 9A is before cleaning and FIG. 9B is after cleaning. In the fifth embodiment, the portion of the air duct 6 to be attached / detached is bent.
As shown in FIG. 9A, the filter device 8E has a filter 21C that captures the lint 9, a pipe portion 42 (a part of the air passage), and a cleaning unit 33 that cleans the lint 9 captured by the filter 21C. (Cleaning means) and.

The filter 21C has a shape bent in an arc shape in a side view. In this embodiment, the arc is configured to form about 90 degrees. Further, the filter 21C is formed on a surface adjacent to the opening 42d.

The pipe portion 42 has a tubular body 42a that constitutes the peripheral wall of the air duct 6, and a retracting portion 42b that is formed at the downstream end of the tubular body 42a and retracts the cleaning portion 33. Further, when the pipe portion 42 is attached to the ventilation duct 6, airtightness is ensured through packing or the like so that air does not leak from the boundary portion between the pipe portion 42 and the ventilation duct 6. It is configured.

A filter 21C is attached to one end of the tubular body 42a, and an opening 42d is formed at the other end. Although not shown, a covering portion 24 (see FIG. 2) is integrally formed on the upper portion (front side in the vertical direction of the paper surface) of the tubular body 42a.

The cleaning unit 33 is configured to be rotatable along the filter surface 21s of the filter 21C. As the cleaning unit 33 moves on the filter 21B, the lint 9 on the filter 21C is scraped (captured) by the blade member 33b of the cleaning unit 33.

In the fifth embodiment, the filter 21C is cleaned by rotating the blade member 33b. The portion of the air duct 6 to be attached / detached is bent, and the cleaning mechanism is a blade member 33b that moves on the filter 21C. The rotary structure is easier to form a seal member than the linear motion structure.

As shown in FIG. 9A, the cleaning operation mechanism 64 (cleaning means) of the filter device 8E is a rotary type. The cleaning operation mechanism 64 is composed of an arm member 64a fixed to the cleaning portion 33, a shaft portion 64b (rotation center) that pivotally supports the arm member 64a, and an operation lever 65a that rotates the cleaning portion 33. ing.

The base end of the operating lever 65a is fixed to the shaft portion 64b. By rotating the operating lever 65a, the cleaning unit 33 is also configured to rotate in the same direction.

As described above, the filter device 8E is a method in which the filter 21C has a curved surface shape, and a cleaning portion 33 (blade member 33b) is provided on the outermost side of the rotating arm member 64a for cleaning. The operating lever 65a to be operated is provided on the other side of the wall surface on the paper surface side in FIG. 9, and is described by a hidden line (broken line). By rotating the operation lever 65a in the direction of the arrow, the arm member 64a to which the cleaning portion 33 is attached is rotated to perform cleaning. Since the curved filter 21C is used in this method, it is important to configure the distance between the filter surface 21s and the blade member 33b, that is, the contact condition of the blade member 33b within an appropriate cleaning angle range. Is.

(Sixth Embodiment)
10A and 10B show a cross-sectional view of the filter device with a cleaning mechanism according to the sixth embodiment, in which FIG. 10A is before cleaning and FIG. 10B is after cleaning. In the sixth embodiment, the portion of the air duct 6 to be attached / detached is bent.
As shown in FIG. 10A, the filter device 8F has a filter 21D that captures the lint 9, a pipe portion 52 (a part of the air passage), and a cleaning unit 33 that cleans the lint 9 captured by the filter 21D. (Cleaning means) and.

The filter 21D has a substantially fan-planar shape when viewed from the front. In this embodiment, the fan shape is configured to form an angle of about 90 degrees.

The pipe portion 52 has a tubular body 52a that constitutes the peripheral wall of the air duct 6, and a retracting portion 52b that is formed at the downstream end of the tubular body 52a. The retracting portion 52b can retract the cleaning portion 33 to a position where it does not overlap with the filter 21D.

A filter 21D is attached to the side surface of the tubular body 52a, and an opening 52d is formed at the lower portion. Although not shown, a covering portion is integrally formed on the upper portion of the tubular body 52a.

The cleaning unit 33 is configured to be rotatable along the filter surface 21s of the filter 21D. As shown in FIG. 10B, as the cleaning unit 33 moves on the filter 21D, the lint 9 on the filter 21D is scraped (captured) by the blade member 33b of the cleaning unit 33.

As shown in FIG. 10A, the cleaning operation mechanism 66 (cleaning means) of the filter device 8F with a cleaning mechanism is another rotation method. The cleaning operation mechanism 66 includes an arm member 66a fixed to the cleaning portion 33, a hinge portion 66b (rotation center) that pivotally supports the arm member 66a, and an operation lever 66c that rotates the cleaning portion 33. ing.

The arm member 66a is located inside the pipe portion 52, and the operating lever 66c is configured to be located outside the pipe portion 52. The hinge portion 66b is supported by the pipe portion 52.

As described above, in the sixth embodiment, the filter 21D is cleaned by rotating the cleaning unit 33 (blade member 33b). The portion of the air duct 6 to be attached / detached is bent. The cleaning mechanism is a blade member 33b that moves on the filter 21D. The rotary structure makes it easier to form an airtight seal as compared with the linear motion structure.

Further, although the shape of the filter 21D is fan-shaped, it is relatively easy to form the filter 21D because it is flat. In the operation unit of the cleaning mechanism in this embodiment, the operation lever 66c is arranged on the outside of the pipe unit 52 by placing the rotating shaft on the wall surface.

(7th Embodiment)
11A and 11B show a cross-sectional view of the filter device with a cleaning mechanism according to the seventh embodiment, in which FIG. 11A shows a state during transportation and FIG. 11B shows a state attached to a cloth drying device. Although the description will be described below based on the configuration of the first embodiment, it can also be applied to other embodiments.

As shown in FIG. 11A, the filter device 8G of the seventh embodiment includes a lid portion 67a that opens and closes the opening 22d. The lid portion 67a is rotatably attached to the pipe portion 22 (cylindrical body 22a) via the hinge portion 67b. Further, at the tip of the lid portion 67a, a tapered surface 67c that faces diagonally downward when the lid portion 67a is closed with the opening 22d facing upward is formed. Further, although not shown, an elastic member for urging the lid portion 67a in the closing direction is provided. In this embodiment, the opening / closing operation mechanism is configured by the hinge portion 67b and the tapered surface 67c.

As shown in FIG. 11B, when the attachment / detachment portion 12 provided with the lid portion 67a is attached to the air duct 6 (cloth drying device 100), the attachment / detachment portion 12 is attached with the tip of the lid portion 67a facing downward. .. By lowering the detachable portion 12 toward the ventilation duct 6, the tapered surface 67c of the lid portion 67a comes into contact with the outer peripheral surface of the ventilation duct 6, so that the ventilation duct 6 repels the urging force of an elastic member (not shown). It slides on the outer peripheral surface of the. Then, when the detachable portion 12 is installed at a predetermined position, the lid portion 67a is fully opened, and the state shown in FIG. 11B is reached. On the contrary, when the detachable portion 12 is removed from the state shown in FIG. 11B, the lid portion 67a is gradually closed and pulled out from the air duct 6. Then, when the detachable portion 12 is completely pulled out, the opening 22d is closed by the lid portion 67a.

As described above, in the seventh embodiment, the opening / closing operation mechanism is configured to open / close the lid portion 67a in conjunction with the attachment / detachment operation to the cloth drying device 100. As a result, the scattering of Rin and 9 can be suppressed more reliably, and the lint 9 can be discarded as long as the lid portion 67a is opened on the dust box 10, so that the operability is further improved.

(FIG. 8 Embodiment)
FIG. 12 is a cross-sectional view showing a state in which the filter device with a cleaning mechanism of the eighth embodiment is attached to the cloth drying device.
As shown in FIG. 12, the filter device 8H of the eighth embodiment has a configuration in which a lid body 68a for covering the cleaning portion 33 located at the retracting portion 22c is added to the configuration of the first embodiment. The lid body 68a is rotatably supported by the pipe portion 22 via a hinge 68b. Further, the lid body 68a is urged in a direction of closing the lid body 68a by a spring member (not shown). Further, the lid body 68a is arranged at a position that does not overlap with the filter 21A in the axial direction g of the air duct 6.

When the detachable part 12 is removed from the air duct 6 and the cleaning part 23 cleans the filter 21A, the cleaning part 23 is operated toward the filter 21A, and the spring member is attached according to the operating force at that time. The lid body 68a opens while receiving force.

By providing the lid body 68a in this way, it is possible to prevent the lint 9 from adhering to the cleaning portion 23 at the time of blowing air. Further, since the wind flow can be rectified to the filter 21A side, the drying efficiency can be improved. The lid portion 68a may be closed by the pressure of the wind flow without providing the spring member that urges the lid portion 68a in the closing direction.

As described above, by using the filter devices 8A to 8H with a cleaning mechanism and the cloth drying device 100 using the filter devices 8A to 8H according to the above-described embodiments, the filter can be cleaned by a simple method without causing lint scattering or the like. Can be realized.

The present invention is not limited to the above-described embodiment, and each of the above-described embodiments may be combined as appropriate.

1 Housing 2 Outer tank 3 Rotating drum 4 Drum motor 6 Blower duct (blower path)
8A, 8B, 8C, 8D, 8E, 8F, 8G, 8H Filter device with cleaning mechanism 9 Lint 10 Dust box 12 Detachable part 13 Fixed filter 14 Blower 16 Door 21A, 21B. 21C, 21D filter 21s filter surface 22, 32, 42, 52 Pipe (part of the air passage)
22a, 32a, 42a, 52a Cylinder body 22c, 32b, 42b, 52b Evacuation part 22d, 32d, 42d, 52d Opening part 22e Projection part 22f Tapered surface 23, 33 Cleaning part (cleaning means)
23b Brush member 24 Covering part 25 Guide plate (cleaning part evacuation mechanism)
33b Blade member 61, 62, 63, 64, 66 Cleaning operation mechanism (cleaning means)
62b Operation part 63a Arm part 64b Shaft part (center of rotation)
66b Hinge (center of rotation)
100 Cloth drying device (device body)
F1 washer / dryer (device body)

Claims (9)

A filter that is installed in the air passage that sends dry air and captures lint,
A cleaning means for cleaning the lint captured by the filter and
A part of the air passage including a portion located on the upstream side of the filter.
The filter, the cleaning means, and a part of the air passage are detachable portions that can be integrally attached to and detached from the apparatus main body.
The detachable portion has a portion of said filter the airflow path to the wall, Ri cup-shaped der having an opening,
The cleaning means has a brush-like or blade-like cleaning portion that moves along the filter surface of the filter.
A part of the air passage is provided with a retracting unit that retracts the cleaning unit to a position that does not overlap the filter surface of the filter when the air is blown.
The cleaning unit is a filter device with a cleaning mechanism, characterized in that when the attachment / detachment unit is installed on the main body of the device, the cleaning unit is retracted by a cleaning unit evacuation mechanism that retracts and holds the cleaning unit in the evacuation unit. In the filter device with a cleaning mechanism according to claim 1,
The attachment / detachment portion is a filter device with a cleaning mechanism, characterized in that the filter surface of the filter is provided on at least one or more surfaces adjacent to the opening. In the filter device with a cleaning mechanism according to claim 1,
The cleaning means includes a cleaning operation mechanism that performs a cleaning operation.
The detachable portion includes a cover portion that covers the cleaning operation mechanism.
A filter device with a cleaning mechanism, characterized in that the cleaning operation mechanism is covered by the covering portion when the attachment / detachment portion is attached to the apparatus main body. In the filter device with a cleaning mechanism according to claim 1,
The filter is arranged so as to be curved in an arc shape, and the filter is arranged.
The cleaning unit is a filter device with a cleaning mechanism, which is configured to rotate around the rotation center of the arc of the filter as a fulcrum. In the filter device with a cleaning mechanism according to claim 1,
The filter is formed in a plane fan shape and has a flat fan shape.
The cleaning unit is a filter device with a cleaning mechanism, which is configured to rotate around the fan-shaped rotation center of the filter as a fulcrum. In the filter device with a cleaning mechanism according to claim 1,
The cleaning unit has a translational cleaning body that moves in parallel with the filter surface of the filter and toward the opening.
The parallel movement cleaning body is a filter device with a cleaning mechanism, characterized in that an operation unit for operating the parallel movement cleaning body is provided on the outside penetrating a part of the air passage. In the filter device with a cleaning mechanism according to claim 1,
The cleaning unit has a translational cleaning body that moves in parallel with the filter surface of the filter and toward the opening.
The translational cleaning body is a filter device with a cleaning mechanism, comprising an arm portion extending inside a part of the air passage toward the opening. In the filter device with a cleaning mechanism according to claim 1,
The detachable portion includes a lid portion that opens and closes the opening.
A filter device with a cleaning mechanism, wherein the lid portion is operated by an opening / closing operation mechanism that opens when the attachment / detachment portion is attached to the apparatus main body and closes when the attachment / detachment portion is removed. A cloth drying device according to any one of claims 1 to 8, wherein the filter device with a cleaning mechanism is used.

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