JP2008173616A - Cleaning tool and air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning tool of inexpensive structure effectively scraping dust attached to an air filter in one direction. <P>SOLUTION: The cleaning tool is provided with a brush body 16 slidingly contacting the air filter 21 built in the air conditioner 20 and removing dust of the air filter 21, and an electric motor (not shown) reciprocatingly moving the brush body 16 along the surface of the air filter 21, with an angle between the center line of the brush body16 and the surface of the air filter 21 in the moving direction of the brush body 16 set different in advancing and returning times in moving of the brush body 16. For example, in advancing, by setting the angle of roughly 90°, dust of the air filter 21 can be effectively scraped in the moving direction, and by setting the angle of less than 90° in returning, the brush body 16 only strokes the surface of the air filter 21 without scraping the dust remaining on the surface of the air filter 21 in the reverse direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cleaning tool for cleaning an air filter mounted on an air conditioner or the like and an air conditioner using the same.

  The air conditioner is provided with an air filter to prevent dust from entering the air conditioner during operation. However, if dust accumulates on the air filter, air pressure loss of the air is reduced. Since it increases and the heat exchange efficiency of air falls, it is necessary to clean an air filter regularly or as needed. However, most air conditioners are installed in high places such as the ceiling or on the ceiling of a wall, and it has been very troublesome to remove and clean the air filter mounted on the air conditioner. In order to solve this, there is a cleaning tool in which a brush is moved back and forth along the surface of the air filter while the air filter is mounted on the air conditioner (see, for example, Patent Document 1).

  10 is a perspective view of a conventional cleaning tool described in Patent Document 1, FIG. 11 is a schematic cross-sectional view of an air conditioner equipped with the cleaning tool, and FIG. 12 is another attachment example of the cleaning tool. It is a schematic sectional drawing of the air conditioner which shows.

  10 and 11, a conventional cleaning tool 1 includes a brush 4 that slides on the surface of an air filter 3 attached to an air conditioner 2 to remove dust, and a pair of rails 5 that support both ends of the brush 4. The drive motor 6 is configured to move the brush 4 up and down along the rail 5 while bringing the tip of the brush 4 into sliding contact with the surface of the air filter 3. Reference numeral 7 denotes a comb that is provided downward in the vicinity of the lower end of the air filter 3, that is, the vicinity where the brush 4 is folded back, and removes dust adhering to the brush 4.

  The brush 4 is brought into contact with the surface of the air filter 3 at a substantially right angle as shown in FIG. 11, or as shown in FIG.

  The operation and action of the conventional cleaning tool 1 configured as described above are as follows.

  In the initial state, the brush 4 is located at the upper end of the air filter 3 as shown in FIG. Here, when the drive motor 6 is energized, the brush 4 moves along the rail 5 and moves downward while scrubbing the dust accumulated on the air filter 3. When the lower end of the air filter 3 is reached, this time, , It moves upward and stops at the initial position, that is, at the upper end of the air filter 3.

Further, when the brush 4 reaches the lower end of the air filter 3 and is turned back, the dust attached to the brush 4 is removed by a comb provided downward.
JP 2001-170430 A

  However, according to the configuration of the conventional cleaning tool described in Patent Document 1, particularly when the brush 4 is in contact with the air filter 3 at a substantially right angle as shown in FIG. The dust accumulated on the air filter 3 is scraped off while moving to the point where the brush 4 reaches the lower end of the air filter 3 and then turns back and moves upward. Since it is almost constant regardless of the moving direction of the brush 4, if dust remains on the surface of the air filter 3, the dust is swept upward, and a sufficient cleaning effect cannot be obtained.

  On the other hand, as shown in FIG. 12, when the brush 4 is tilted forward and brought into contact with the air filter 3, the brush 4 is tilted when the brush 4 is moved upward. Since the urging force of the air filter 3 is weakened and the brush 4 strokes the air filter 3, even if dust remains on the surface of the air filter 3, it is not swept upward.

  However, since the brush 4 is inclined downwardly, when the brush 4 is moved downward, the tip of the brush 4 acts so as to bite into the eyes of the air filter 3, so that the resistance applied to the brush 4 is greatly increased. As a result, the drive motor 6 was forced to increase in size. There was also a problem that the brush 4 was worn quickly.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and provides a cleaning tool and an air conditioner excellent in cleaning performance that can effectively sweep dust adhering to an air filter in one direction with an inexpensive configuration. It is intended to provide.

  In order to solve the above-described conventional problems, the cleaning tool of the present invention includes a brush body that slides on an air filter built in an air conditioner to remove dust attached to the air filter, and the brush body. A moving means for reciprocating along the surface of the air filter, wherein the angle formed by the center line of the brush body and the surface of the air filter is different between the forward path and the return path when the brush body is moved For example, if the angle formed between the center line of the brush body and the surface of the air filter on the moving direction side of the brush body is approximately 90 degrees in the forward path and smaller than that angle in the return path, The air filter can effectively sweep the dust of the air filter in the moving direction, and when returning, only the surface of the air filter is stroked with a brush body. Be left dust on the surface of, without being sweep up it in the opposite direction, with an inexpensive configuration, it is possible to provide an excellent cleaning tool for cleaning performance.

  Further, the cleaning tool of the present invention comprises a brush body for removing dust adhering to an air filter built in an air conditioner, and a moving means for reciprocating the brush body along the surface of the air filter, When the brush body is moved in one direction, the brush body is slidably contacted with the air filter, and when the brush body is moved in the opposite direction, the brush body is separated from the air filter. The dust attached to the air filter can be effectively swept in the same direction by moving it in one direction while sliding on the air filter, and when moving the brush body in the opposite direction, Is away from the air filter, so even if dust remains on the surface of the air filter, it will sweep away in the opposite direction. Is it is not, it can provide excellent cleaning tool for cleaning performance.

  Moreover, the air conditioner of this invention is equipped with the cleaning tool as described in any one of Claims 1-5, and the air filter which captures the dust contained in the indoor air attracted | sucked, The said air The filter is cleaned with the cleaning tool, and an air conditioner capable of automatically and efficiently cleaning the air filter can be provided.

  The cleaning tool and the air conditioner of the present invention can effectively sweep the dust adhering to the air filter in one direction with an inexpensive configuration.

  In a first aspect of the invention, a brush body that slides on an air filter built in an air conditioner to remove dust attached to the air filter, and the brush body reciprocates along the surface of the air filter. An angle formed by the center line of the brush body and the surface of the air filter is different between the forward path and the return path when the brush body is moved. For example, the center line of the brush body and the brush If the angle formed by the air filter surface on the moving direction side of the body is approximately 90 degrees on the forward path and smaller than that angle on the return path, the dust on the air filter is effective for the forward path. In the return path, the surface of the air filter is simply boiled with a brush body, so even if dust remains on the surface of the air filter, remove it. It is possible to provide a cleaning tool which does not sweep in the opposite direction and has an excellent cleaning performance with an inexpensive configuration.

  In the second invention, in particular, the angle formed by the center line of the brush body in the forward path of the first invention and the surface of the air filter is set to approximately 90 degrees, and the brush body is moved to the moving direction side in the forward path. It is provided so as to be able to swing, and it has a simpler structure. In the forward pass, the air filter dust is effectively swept in the moving direction, and in the return pass, the brush body follows the surface of the air filter. Therefore, the surface of the air filter can be boiled and the remaining dust is not swept away in the opposite direction, and a cleaning tool having excellent cleaning performance can be provided.

  According to a third invention, in particular, the moving means of the first or second invention moves the brush body back and forth up and down along the surface of the air filter and moves the brush body downward. The angle formed by the center line of the body and the surface of the air filter on the moving direction side is approximately 90 degrees, and when the brush body moves upward, the center line of the brush body and the air filter on the moving direction side The angle formed by the surface is smaller than 90 degrees, and when the brush body moves downward, the dust of the air filter is effectively naturally dropped downward, and when returning, the brush body It is possible to provide a cleaning tool excellent in cleaning performance that is inclined with respect to the surface of the air filter and does not sweep up dust by simply boiling the surface of the air filter.

  The fourth invention is a special mechanism for collecting dust in the dust case, in particular, a dust case for receiving the dust removed by the brush body of the third invention and falling is provided below the lower end of the air filter. In addition, since no parts are required, it can be configured at low cost.

  5th invention is equipped with the brush body which removes the dust adhering to the air filter incorporated in the air conditioner, and the moving means which reciprocates the said brush body along the surface of the said air filter, The said brush body When the brush body is moved in one direction, the brush body is brought into sliding contact with the air filter, and when the brush body is moved in the opposite direction, the brush body is separated from the air filter. The dust attached to the air filter can be effectively swept away in the same direction by moving it in one direction while being in sliding contact with the brush. Because it is separated from the air filter, even if dust remains on the surface of the air filter, it can be swept away in the opposite direction. Without, it is possible to provide an excellent cleaning tool for cleaning performance.

6th invention is equipped with the cleaning tool as described in any one of Claims 1-5, and the air filter which captures the dust contained in the indoor air attracted | sucked, The said air filter is the said, An air conditioner that can be automatically and efficiently cleaned with a cleaning tool can be provided.
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.
(Example 1)

  1 is a cross-sectional view of an air conditioner equipped with a cleaning tool in a first embodiment of the present invention, FIG. 2 is a perspective view of the cleaning tool, and FIG. 3A is a perspective view of a brush body of the cleaning tool. , (B) is a side view of the brush body, FIG. 4 is a cross-sectional view of an essential part showing a fitting configuration of the rotating shaft of the brush body and a gear, and FIG. 5 is a fitting of the side frame and the intermediate member of the cleaning tool. The principal part side view which shows a combined structure, FIG. 6 (a)-(d) is a figure which shows operation | movement of the same brush body.

  1 to 6, inside the air conditioner 20, heat exchangers 22 arranged at the front and upper portions, and indoor air are sucked through the heat exchanger 22, and heat is exchanged by the heat exchanger 22. Dust contained in the air flowing into the air conditioner 20 is formed to be greatly curved so as to cover the fan 24 for blowing the air from the outlet 23 into the room and the front and upper heat exchangers 22. The air filter 21 to be captured and the cleaning tool 10 according to the present embodiment arranged along the upstream surface of the air filter 21 are provided.

  The front part and ceiling part of the air conditioner 20 are covered with a grill 25 having an air intake 25a. A dust case 30 receives dust from the air filter 21 that is removed by the cleaning tool 10 and is detachably provided below the air filter 21.

  A door 31 is provided at the lower portion of the grill 25 so as to be opened and closed. The door 31 opens and closes when the dust case 30 is taken in and out.

  The cleaning tool 10 is attached to a frame 14 composed of a pair of side frames 11, an upper frame 12 and a lower frame 13, a rack gear 15 provided on each side frame 11, and an air filter 21 built in the air conditioner 20. The brush body 16 that removes the dust, and the gear 18 that is rotationally driven by the electric motor 17 and has teeth 18a that mesh with the teeth 15a of the rack gear 15, and moves the brush body 16 along the surface of the air filter 21. It is composed of

  With the above configuration, the electric motor 17, the rack gear 15, and the gear 18 constitute moving means for moving the brush body 16.

  In FIG. 3, the brush body 16 includes a substantially strip-shaped base portion 16b having a rotation shaft 16a at both ends, and a brush member 16d press-fitted into a groove portion 16c provided in the longitudinal direction at the lower end of the base portion 16b. A rib 16e is provided in the longitudinal direction of a part of the outer periphery of the rotating shaft 16a.

  In FIG. 4, the rotation shaft 16 a of the brush body 16 and the gear 18 are fitted via an intermediate member 27, and the rotation shaft 16 a can rotate at a predetermined angle with respect to the intermediate member 27. Thus, a concave groove 27a that allows movement of the rib 16e of the rotating shaft 16a within a predetermined range is formed.

  Further, the intermediate member 27 is rotatably fitted to the gear 18 and, as shown in FIG. 5, a rectangular protrusion 27b is provided on the back surface to be fitted into the long hole 11a provided in the longitudinal direction of the side frame 11. Therefore, the rotation of the intermediate member 27 is restricted.

  In the present embodiment, the distance L2 (see FIG. 6) between the rotation center of the brush body 16 (center of the rotation shaft 16a) and the surface of the air filter 21 is set as the rotation center of the brush body 16 (of the rotation shaft 16a). The center is set smaller than the distance L1 between the brush member 16d and the tip of the brush member 16d (see FIG. 3), and when cleaning the air filter 21, the brush body 16 is bent and the dust is effectively swept away.

  The operation and action of the cleaning tool 10 of the present embodiment configured as described above and the air conditioner 20 on which the cleaning tool 10 is mounted are as follows.

  When the operation of the air conditioner 20, for example, the cooling operation is started, the fan 24 rotates, the indoor air flows from the air intake port 25 a provided in the grill 25, passes through the air filter 21, and reaches the heat exchanger 22. Then, it is cooled and cold air is blown out into the room from the outlet 23. Dust contained in the indoor air sucked from the air intake port 25a adheres to the surface of the air filter 21 and gradually accumulates.

  If dust accumulates on the surface of the air filter 21, the air ventilation pressure loss increases and the heat exchange efficiency in the heat exchanger 22 decreases. Therefore, the air filter is periodically or as needed. The operation of removing the dust accumulated on 21 is required.

  The cleaning operation of the air filter 21 by the cleaning tool 10 in the present embodiment will be described with reference to FIG. 6 shows the operation of the brush body 16 when the horizontal portion 21a and the vertical portion 21b (see FIG. 1) at the top of the air filter 21 are cleaned while the brush body 16 is moved up and down along the surface of the air filter 21. FIG.

  First, the brush body 16 of the cleaning tool 10 is positioned at the upper end of the air filter 21 as shown in FIG. In this embodiment, this position is the operation start position of the cleaning tool 10.

  When an operation switch (not shown) is operated, the motor 17 is energized, the gear 18 is rotationally driven, and the brush body 16 moves to the left, that is, downward as the gear 18 moves on the rack gear 15. As shown to (a), the dust adhering to the horizontal part 21a of the air filter 21 is swept away by the brush member 16d of the brush body 16 to the left. In this embodiment, the angle α1 formed between the stop line of the brush body 16 and the surface of the air filter 21 on the moving direction side of the brush body 16 is set to be approximately 90 degrees.

  When the brush body 16 passes through the curved portion 21 c of the air filter 21 and reaches the vertical portion 21 b of the air filter 21, the elongated hole 11 a provided in the side frame 11 is also curved along the shape of the air filter 21. Therefore, as shown in FIG. 6B, the protrusion 27b (see FIG. 5) of the intermediate member 27 guided by the long hole 11a rotates approximately 90 degrees in the counterclockwise direction. At this time, the brush member 16d of the brush body 16 is pressed against the surface of the air filter 21 and is subjected to friction. Similarly, the brush member 16d is rotated approximately 90 degrees counterclockwise, and is kept in sliding contact with the surface of the air filter 21. In this state, the dust on the air filter 21 is swept away while moving downward.

  In the present embodiment, since the movement range of the rib 16e provided on the rotation shaft 16a of the brush body 16 is restricted by the concave groove 27a of the intermediate member 27, the brush body 16 rotates counterclockwise to an angle larger than 90 degrees. In other words, the dust of the air filter 21 can be surely swept away.

  Then, the dust that is swept down by the brush member 16d of the brush body 16 falls into the dust case 30 provided below the air filter 21, and accumulates there.

  When the brush body 16 reaches the lower end of the air filter 21, the electric motor 17 is reversely rotated by a control means (not shown) to move the brush body 16 to the upper end of the air filter 21 in preparation for the next cleaning of the air filter 21. .

  When the brush body 16 is moved to the upper end of the air filter 21, that is, when the brush body 16 is moved upward, the brush member 16d of the brush body 16 is moved to the air filter 21 at the same angle as when the brush member 16 is moved downward. If dust is left on the surface of the air filter 21 when slidably contacted, it will be swept upward, but in this embodiment, the rib 16e provided on the rotating shaft 16a of the brush body 16 is an intermediate member. 27, the brush body 16 rotates clockwise by its own weight as shown in FIG. 6 (d) when passing through the vertical portion 21b of the air filter 21. The tip of the brush member 16d moves away from the surface of the air filter 21, so that dust remaining on the surface of the air filter 21 is not swept upward.

  Further, when the brush body 16 further rises and passes through the horizontal portion 21a of the air filter 21, the brush body 16 tries to return counterclockwise by its own weight, but the rib 16e provided on the rotating shaft 16a of the brush body 16 Can move freely within the concave groove 27a of the intermediate member 27, so that the surface of the air filter 21 is stroked by the brush member 16d of the brush body 16 as shown in FIG. Thereby, even if dust remains on the surface of the air filter 21, it is not swept rightward.

  Further, the dust accumulated in the dust case 30 can be easily discarded by opening the door 31 provided at the lower portion of the grill 25 so as to be freely opened and closed, and pulling out the dust case 30.

  As described above, in this embodiment, when the brush body 16 moves upward, the angle α2 formed by the stop line of the brush body 16 and the surface of the air filter 21 on the moving direction side of the brush body 16 is smaller than 90 degrees. It is set to be.

  As described above, according to the cleaning tool 10 in the present embodiment, the center line of the brush body 16 and the surface of the air filter 21 when the brush body 16 moves forward, that is, when the dust body is moved in a direction in which it is desired to sweep away, The angle formed by the center line of the brush body 16 and the surface of the air filter 21 when the brush body 16 is moved backward, that is, when the brush body 16 is moved back to the original position, is set to approximately 90 degrees. By making the angle smaller than 90 degrees, the dust adhering to the surface of the air filter 21 can be effectively swept in the moving direction during the forward pass, and the air filter 21 can be used with the brush body 16 during the return pass. The surface of the air filter 21 is only boiled, so even if dust remains on the surface of the air filter 21, it does not sweep away in the opposite direction, and it is an inexpensive structure with excellent cleaning performance. It is possible to provide the ingredients.

  Further, the rib 16e provided on the rotating shaft 16a of the brush body 16 can freely move in the concave groove 27a provided in the intermediate member 27, so that the brush body 16 can swing in the moving direction side in the forward path. Therefore, the angle formed by the center line of the brush body 16 and the surface of the air filter 21 can be made different between the forward path and the return path with a simple configuration.

  Further, in this embodiment, the brush body 16 is moved in the vertical direction, so that the dust on the air filter 21 is effectively dropped down naturally in the forward path in which the brush body 16 moves downward. When the brush body 16 passes through the vertical portion 21b of the air filter 21 during the return path, the brush member 16d of the brush body 16 does not contact the air filter 21 and the brush body 16 When passing through the horizontal 21a of the air filter 21, since it is inclined along the surface of the air filter 21 and only the surface of the air filter is boiled, the dust is not swept away in the opposite direction, and the cleaning tool 10 has excellent cleaning performance. Can be provided.

  In addition, since the dust case 30 that receives the dust that is removed by the brush body 16 and falls is provided below the lower end of the air filter 21, no special mechanism or parts for collecting the dust in the dust case 30 are required, so cleaning is performed. The tool 10 can be configured at low cost.

Further, when the brush body 16 is moved upward along the surface of the vertical portion 21 b of the air filter 21, the brush member 16 d of the brush body 16 is separated from the surface of the air filter 21. Even if dust remains, it is never swept up, and the cleaning tool 10 having excellent cleaning performance can be provided.
(Example 2)

  FIG. 7 is a perspective view of the cleaning tool in the second embodiment of the present invention, FIG. 8A is a perspective view of the brush body of the cleaning tool, and FIG. 7B is a side view of the brush body. (A) is a figure which shows operation | movement in the air filter upper part of the same brush body, (b) is a figure which shows operation | movement in the air filter lower part of the same brush body. In addition, the same code | symbol is attached | subjected about the same part as the cleaning tool in the said 1st Example, and the description is abbreviate | omitted.

  In the first embodiment, the brush member 16d of the brush body 16 is separated from the surface of the air filter 21 only when the brush body 18 passes through the vertical portion 21b of the air filter 21 during the return path. In the example, the brush member 16 d of the brush body 16 is separated from the surface of the air filter 21 during the return path of the brush body 18 from the lower end to the upper end of the air filter 21.

  7 to 9, a guide 36 that restricts the inclination of the brush body 16 is provided in the longitudinal direction of the side frame 11 of the cleaning tool 35 in the present embodiment, and a front-falling inclined surface 36 a is provided at the upper end of the guide 36. The lower end is provided with an upwardly inclined surface 36b.

  In addition, a regulation pin 37 is provided on the end surface of the base portion 16 b of the brush body 16 so as to be in sliding contact with the outer periphery of the guide 36. 38 is made of a spring material or the like, and one end is hooked on the side surface of the base portion 16b of the brush body 16 and the other end is hooked on the intermediate member 27, and the brush body 16 is viewed from the right end side of the brush body 16 in FIG. It is a biasing means for biasing clockwise.

  Further, the distance L3 between the center of the rotating shaft 16a of the brush body 16 and the regulation pin 37 is substantially the same as the distance L4 between the center of the rotating shaft 16a of the brush body 16 and the lower surface of the guide 36. Is set to

  The operation of the cleaning tool 10 in the present embodiment configured as described above will be described with reference to FIG.

  When the brush body 16 is on the right side of the upper end of the air filter 21 (position I), the brush body 16 is inclined by the biasing means 38, and the brush member 16d is separated from the surface of the air filter 21. . When the motor 18 is driven to rotate the gear 18 and the brush body 16 starts to move downward, that is, to the left, the regulation pin portion 37 of the brush body 16 contacts the inclined surface 36a of the guide 36. The brush body 16 gradually rises as it moves toward the lower surface of the guide 36 while being in contact with it and sliding along it (the position of A → U). An angle α3 formed by the surface of the air filter 21 is substantially a right angle. This state is maintained until the brush body 16 reaches the lower end of the air filter 21, during which dust is efficiently swept down and falls into the dust case 30.

  Then, as shown in FIG. 9B, when the brush body 16 reaches the lower end of the air filter 21 and the restriction pin 37 is removed from the end of the guide 36 (position D), the urging force of the urging means 38 is applied. Thus, the brush body 16 rotates in the clockwise direction, and the brush member 16 d is separated from the surface of the air filter 21.

  When the electric motor 17 is reversed and the brush body 16 is moved in the opposite direction, that is, upward, this time, the regulation pin 38 hits the inclined surface 36b of the guide 36 and is guided obliquely upward. It moves toward the upper end of the air filter 21 while sliding on the upper end surface of the guide 36 in an inclined state (position of (e)), that is, in a state away from the surface of the air filter 21.

  As described above, according to this embodiment, when the brush body 16 moves downward along the surface of the air filter 21, dust adhered to the surface of the air filter 21 by the brush member 16 of the brush body 16. When the brush body 16 is moved upward along the surface of the air filter 21, the brush member 16 d of the brush body 16 is separated from the surface of the air filter 21. Even if dust remains on the surface, it is not swept up, and the cleaning tool 35 having excellent cleaning performance can be provided.

  As described above, the cleaning tool and the air conditioner according to the present invention have an inexpensive configuration and can effectively sweep dust adhering to the air filter in one direction. It can be applied not only to air conditioners but also to various devices having air filters such as air purifiers and ventilators.

Sectional drawing of the air conditioner carrying the cleaning tool in 1st Example of this invention. Perspective view of the cleaning tool (A) Perspective view of brush body of the cleaning tool, (b) Side view of the brush body Cross-sectional view of the main part showing the fitting configuration of the rotating shaft of the brush body and the gear Side view of essential parts showing fitting configuration of side frame and intermediate member of same cleaning tool (A)-(d) The figure which shows operation | movement of the same brush body The perspective view of the cleaning tool in 2nd Example of this invention. (A) Perspective view of brush body of the cleaning tool, (b) Side view of the brush body (A) The figure which shows operation | movement in the air filter upper part of the same brush body, (b) The figure which shows operation | movement in the lower air filter of the same brush body, Perspective view of a conventional cleaning tool Schematic cross-sectional view of an air conditioner equipped with the cleaning tool Schematic sectional view of an air conditioner showing another example of attachment of the cleaning tool

Explanation of symbols

10, 35 Cleaning tool 15 Rack gear (moving means)
16 Brush body 17 Electric motor (moving means)
18 Gear (moving means)
20 Air conditioner 21 Air filter 30 Dust case

Claims (6)

A brush body that slides in contact with an air filter built in an air conditioner and removes dust adhering to the air filter, and a moving means for reciprocating the brush body along the surface of the air filter, A cleaning tool, wherein an angle formed by a center line of a brush body and a surface of the air filter is made different between an outward path and a return path when the brush body is moved. The cleaning according to claim 1, wherein an angle formed by a center line of the brush body in the forward path and a surface of the air filter is set to approximately 90 degrees, and the brush body is provided to be swingable in a moving direction side in the forward path. Ingredients. The moving means reciprocates the brush body up and down along the surface of the air filter, and the center line of the brush body and the surface of the air filter on the moving direction side when the brush body moves downward. The angle formed is approximately 90 degrees, and the angle formed by the center line of the brush body and the surface of the air filter on the moving direction side when the brush body moves upward is smaller than 90 degrees. The cleaning tool according to claim 1 or 2. The cleaning tool according to claim 3, wherein a dust case that receives dust that is removed by the brush body and falls is provided below the lower end of the air filter. A brush body for removing dust adhering to an air filter incorporated in an air conditioner, and a moving means for reciprocating the brush body along the surface of the air filter, the brush body is moved in one direction. Sometimes the brush body is brought into sliding contact with the air filter, and the brush body is separated from the air filter when the brush body is moved in the opposite direction. It is provided with the cleaning tool described in any one of Claims 1-5, and the air filter which capture | acquires the dust contained in the indoor air attracted | sucked, The said air filter is cleaned with the said cleaning tool. Air conditioner.

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