JP2017056440A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner which can clean a filter in a short time while suppressing scattering of dust.SOLUTION: An air cleaner includes: an air cleaner main body 100 which has a blower mechanism 10 and a prefilter 8a arranged on an upstream side of the blower mechanism 10; a rear panel 20 arranged on the air cleaner main body 100 so as to face to the prefilter 8a; a cleaning unit 30 which is arranged between the prefilter 8a and the rear panel 20 and cleans the prefilter 8a; a power transmission mechanism 40 which reciprocates the cleaning unit 30 along a cleaned surface of the prefilter 8a; a driving motor unit 9 which gives driving force to the power transmission mechanism 40. The cleaning unit 30 includes a brush rotor 32 which removes dust by contacting with the cleaned surface, and a collecting mechanism 70 which collects the dust removed by the brush rotor 32.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an air cleaner.

  In Patent Literature 1, a dust collection filter (pre-filter) that captures dust in the sucked air, an air purifier main body to which the dust collection filter is attached, and the upstream surface of the dust collection filter move. Thus, there is described a brush provided with a brush for removing dust attached to the dust collection filter and a dust collection case for storing the dust removed from the dust collection filter.

JP 2008-246463 A

  However, in the conventional technology, since the dust collecting brush and the dust collecting case for collecting the collected dust are separately provided, if the amount of dust adhering to the filter is too large, the dust adhering to the brush is temporarily removed. It is necessary to return to the dust collection case and collect. For this reason, it takes a long time to complete the cleaning of the filter. Further, when the brush is returned to the dust collection filter, dust attached to the brush may be attached to the cleaned filter, and dust is likely to be scattered because the brush and the dust collection case are separate.

  The present invention solves the above-described conventional problems, and an object thereof is to provide an air purifier capable of purifying a filter in a short time while suppressing dust scattering.

The present invention
An air cleaner body having a blower mechanism and a filter provided on the upstream side of the blower mechanism; a panel provided in the air cleaner body so as to face the filter; and provided between the filter and the panel. A cleaning unit that cleans the filter; a power transmission mechanism that reciprocates the cleaning unit along a surface to be cleaned of the filter; and a drive source that applies a driving force to the power transmission mechanism. Comprises a cleaning body that contacts the surface to be cleaned and removes dust, and a recovery mechanism that recovers the dust removed by the cleaning body.

  ADVANTAGE OF THE INVENTION According to this invention, the air cleaner which can clean a filter in a short time can be provided, suppressing scattering of dust.

It is an appearance perspective view of an air cleaner concerning an embodiment of the present invention. It is a disassembled perspective view of the air cleaner which concerns on embodiment of this invention. It is the sectional view on the AA line of FIG. It is a perspective view which shows the rear panel carrying the cleaning unit which concerns on embodiment of this invention. It is a perspective view which shows a power transmission mechanism. It is a perspective view which shows a pre filter. It is the back perspective view which removed the rear panel from the air cleaner concerning the embodiment of the present invention. It is an enlarged view of FIG. 5 which shows the joint of a power transmission mechanism. It is an enlarged view of FIG. 7 which shows the drive shaft coupling connected with a joint. It is a disassembled perspective view which shows the cleaning unit. It is a back perspective view showing a cleaning unit. It is a back perspective view which shows a cleaning body. It is a perspective view when the cleaning unit is seen from the front side. It is the BB sectional view taken on the line of FIG. It is sectional drawing which shows operation | movement of the cleaning unit at the time of filter cleaning. It is a side view which shows operation | movement of the turning brush at the time of filter cleaning.

  Next, an air cleaner according to an embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the following description, the front-rear, up-down, left-right directions are based on the front-rear, up-down, left-right directions shown in FIG.

FIG. 1 is an external perspective view of an air cleaner according to an embodiment of the present invention.
As shown in FIG. 1, the air purifier 1 includes an air purifier main body 100 and a rear panel (panel) 20 that is detachably provided at a rear portion of the air purifier main body 100.

  The air purifier main body 100 includes a substantially box-shaped housing 2 and a humidifying mechanism 3.

  The housing 2 includes a front panel 2a, a pair of side panels 2b and 2b (only the left side panel 2b is shown in FIG. 1), and an upper case 2c. The housing 2 is assembled via a tank base 4 in which a water tank 3c (see FIG. 2) is accommodated so that it can be pulled out, and a rear case 2d (see FIG. 2) attached to the tank base 4.

  Further, a flap 5 capable of adjusting the opening / closing angle is provided on the upper portion of the housing 2. The flap 5 is configured to rotate and open so that the front edge side is lifted about the rear edge side. FIG. 1 shows a state in which the flap 5 is closed.

  The humidifying mechanism 3 includes a humidifying filter 3a, a water supply mechanism 3b, and a water tank 3c in the housing 2. The left side panel 2b in FIG. 1 is provided with an opening / closing lid 2e for removing the humidifying filter 3a from the housing 2.

  In the present embodiment, the air cleaner 1 including the humidifying mechanism 3 has been described as an example. However, an air cleaner that does not include the humidifying mechanism 3 may be used.

FIG. 2 is an exploded perspective view of the air cleaner according to the embodiment of the present invention.
As shown in FIG. 2, the housing 2 of the air purifier 1 has a filter member 8, a humidifying filter 3 a, and a blower from the side (rear side) where the rear panel 20 is attached toward the front panel 2 a side (front side). The mechanism 10 is arranged in this order. The filter member 8 is detachable from the housing 2. Thus, the air cleaner 1 which concerns on this embodiment is a type which takes in air from a back surface.

  The filter member 8 is provided to purify the air sucked into the housing 2 by the blower mechanism 10, and is provided on the upstream side of the blower mechanism 10. The filter member 8 is mainly composed of a pre-filter 8a, a dust collection filter 8b, and a deodorizing filter 8c. In the filter member 8, a pre-filter 8a, a dust collection filter 8b, and a deodorizing filter 8c are arranged in this order from the rear panel 20 side toward the front panel 2a side. The pre-filter 8a corresponds to the “filter” described in the claims.

  The prefilter 8a collects relatively large dust (dust) such as cotton dust. In order to improve the cleanability described later, the pre-filter 8a is formed by, for example, vapor-depositing SUS (stainless steel) on the surface of a plain woven net made of polyester resin, and insert-molding this on a frame.

  Thus, the rigidity can be increased by depositing metal (SUS). Moreover, since the surface becomes slippery by vapor deposition, the attached dirt is easily removed. Moreover, generation | occurrence | production of microbe can be suppressed and the dust containing oily smoke becomes easy to fall.

  The dust collection filter 8b collects relatively small particles such as dust, dust and pollen.

  The deodorizing filter 8c adsorbs a chemical substance that causes odor.

  The humidifying mechanism 3 is a filter member 8 that flows through the air purifier main body 100 to increase the humidity of the air after cleaning.

  The blower mechanism 10 is mainly configured by a centrifugal fan 11 disposed in the scroll 12 and a motor 13 that rotates the centrifugal fan 11.

  The scroll 12 is attached to a main body portion 12a in which the centrifugal fan 11 is accommodated, a cover 12b that closes an opening on the back side (rear side) of the main body portion 12a, and a circular ventilation hole 12b1 formed in the cover 12b. A ventilation cover 12c. On the upper surface of the scroll 12, a discharge port 12a2 for discharging the sucked air is formed.

  The motor 13 is accommodated in the concave portion 12a1 of the main body portion 12a, and is fixed in the concave portion 12a1 via the fixing plate 13a. Moreover, the motor 13 is connected to the electric box 14 in which the control board (not shown) was accommodated via the electric wire 13b.

  The rear panel 20 is a substantially plate-shaped member and has a shape that covers the entire filter member 8. Further, the rear panel 20 has a vertically long slit-shaped air inlet 21a and a rear panel lock claw 21b.

  The rear panel 20 faces the filter member 8 in a state where the rear panel 20 is attached to the air cleaner main body 100 (see FIG. 1). Further, the rear panel 20 includes a cleaning unit 30 that cleans the prefilter 8a and a power transmission mechanism 40 that reciprocates the cleaning unit 30 in the vertical direction with respect to the prefilter 8a on a surface facing the filter member 8.

3 is a cross-sectional view taken along line AA in FIG.
As shown in FIG. 3, when the centrifugal fan 11 of the air blowing mechanism 10 rotates, external air flows into the housing 2 from a slit-like air inlet 21 a (see FIG. 2) formed in the rear panel 20. And the air which flowed in passes the filter member 8 and the humidification filter 3a in this order, and becomes humidification air. Thereafter, the humidified air is sucked into the scroll 12 in which the centrifugal fan 11 is accommodated, and is sent out of the air cleaner 1 from the discharge port 12a2 of the scroll 12 through the filter 15 and the flap 5.

FIG. 4 is a perspective view showing a rear panel on which a cleaning unit according to an embodiment of the present invention is mounted, and FIG. 5 is a perspective view showing a power transmission mechanism.
As shown in FIG. 4, the rear panel 20 has a shape in which a back surface (rear surface) 21c is curved in a convex shape toward the rear. The air inlets 21a have an elongated slit shape from the upper end to the lower end, and are arranged in a plurality of rows from the center in the left-right direction (width direction) to the outside. That is, when the rear panel 20 is viewed from the left side (right direction), the central air inlet 21a in the left-right direction is located at the rearmost position, and the position of the air inlet 21a gradually toward the front side toward the left and right sides. It is supposed to be located. Thereby, air can be taken in from the side (lateral direction) of the rear panel 20, and even when the air purifier 1 is installed near the wall, a large amount of air can be taken into the air purifier 1. become.

  The cleaning unit 30 is attached to the rear panel 20 and is configured to reciprocate in the vertical direction by the power transmission mechanism 40. The cleaning unit 30 has a substantially rectangular parallelepiped shape extending from the left end to the right end of the rear panel 20, and includes a collection brush 32d as a cleaning body (rotary cleaning body), and dust collected by the collection brush 32d ( And a collection mechanism 70 that collects dust and dirt). That is, when the cleaning unit 30 is positioned at the lowermost position (home position described later), the tooth portion 22a and the spur gear 35b are configured not to mesh with each other.

  A power transmission mechanism 40 is provided at the center of the rear surface of the rear panel 20. In addition, guide rails 22 (shown only on the right side) for guiding the cleaning unit 30 are provided on the left and right sides of the rear surface of the rear panel 20. The guide rail 22 is formed in parallel with the rack gear 41a, and a rack-shaped tooth portion 22a is formed. The height position of the lower end of the tooth portion 22a is set to a position higher than the height position of the lower end of the rack gear 41a.

  As shown in FIG. 5, the power transmission mechanism 40 includes a rack gear case 41 in which a rack gear 41 a is formed, a shaft 42, a worm gear 43, a shaft bearing 44, and a joint 45.

  The rack gear case 41 is formed along the vertical direction from the upper end to the lower end of the rear panel 20 (see FIG. 4). The rack gear 41a is formed on the surface of the rack gear case 41 facing the prefilter 8a (see FIG. 3). The upper end of the rack gear 41a is formed to a position where the cleaning unit 30 can be conveyed to the upper end of the prefilter 8a, and the lower end of the rack gear 41a is formed to a position where the cleaning unit 30 can be conveyed below the lower end of the prefilter 8a. (See FIG. 3).

  The shaft 42 has a square or hexagonal cross section, and is configured to extend in the vertical direction along the rack gear 41a in front of the rack gear 41a.

  The worm gear 43 is attached to the shaft 42 with the shaft 42 penetrating in the vertical direction and meshed with the rack gear 41a. FIG. 5 illustrates a state in which the holder 50 for detachably attaching the cleaning unit 30 (see FIG. 4) to the worm gear 43 is attached. When the shaft 42 rotates and the worm gear 43 rotates, the worm gear 43 moves up and down while meshing with the rack gear 41a.

  The shaft bearing 44 is provided in the upper part of the rack gear case 41, and supports the shaft 42 rotatably.

  The joint 45 has a drive unit that changes the rotation direction at a right angle by a bevel gear 45a (or a universal joint) provided at the lower end of the shaft 42 (the inside is not shown). Further, the joint 45 is coupled to the drive shaft coupling 9a (see FIG. 3) of the drive motor unit (drive motor) 9 (see FIG. 3) provided on the air purifier main body 100 (see FIG. 3) side by the coupling mechanism 45b. 3) and is detachably connected.

  The holder 50 that detachably holds the cleaning unit 30 (see FIG. 4) is attached to the worm gear 43, and the holder 50 moves up and down together with the worm gear 43 when the worm gear 43 rotates.

  The holder 50 also includes a lower holding portion 51 that holds the lower surface of the center of the cleaning unit 30 in the left-right direction, an upper holding portion 52 that holds the upper surface of the center of the cleaning unit 30 in the left-right direction, and positioning for positioning the cleaning unit 30. Holes 53, 53.

FIG. 6 is a perspective view showing the prefilter. FIG. 6 shows a state viewed from the side facing the outside (rear side). In FIG. 6, the mesh net is not shown (the same applies to FIG. 7).
As shown in FIG. 6, the pre-filter 8a includes a frame body 18a partitioned in a lattice shape, a pair of fixing portions 18b and 18b protruding laterally at both left and right ends of the frame body 18a, and a lower end of the frame body 18a. And a pair of protruding piece portions 18c, 18c protruding downward. The outer side of the frame 18a is formed with a wider width than the inner side. The fixed part 18b has a rectangular shape, and has a thin part 18b1 whose upper part is one step lower.

  Further, a plurality of protrusions 18d, 18d,... Are formed at intervals along the vertical direction (the moving direction of the cleaning unit 30) on the frame portions 18A, 18A extending in the vertical direction at both left and right ends. ing. The protrusion 18d is a linear one extending in the left-right direction (a direction orthogonal to the operation direction of the cleaning unit 30), and protrudes about 1 mm from the surface of the frame body 18a. The protrusions 18d are formed with a length L that is substantially the same as the width of the frame parts 18A, 18A, and the intervals S between adjacent protrusions 18d are all the same.

FIG. 7 is a rear perspective view in which the rear panel is removed from the air cleaner according to the embodiment of the present invention.
As shown in FIG. 7, in the rear case 2d of the air purifier main body 100, concave portions 2d1, 2d1 for accommodating the fixing portion 18 (see FIG. 6) of the pre-filter 8a and projecting pieces 18c, 18c are inserted. Insertion holes 2d2 and 2d2 are formed.

  A slide member 2f that is slidable in the vertical direction is attached above the recess 2d1. When the slide member 2f is located on the upper side and does not overlap with the thin portion 18b1, as shown in the left slide member 2f of FIG. 7, the lock member is released and the prefilter 8a can be attached and detached. Further, when the slide member 2f is positioned on the lower side and overlaps with the thin portion 18b1, it is in a locked state as shown in the slide member 2f on the right side of FIG. In the present embodiment, the configuration in which the prefilter 8a is locked by using the slide member 2f has been described as an example. However, a protrusion similar to the protrusion 18c is simply provided to bend the prefilter 8a. The structure which inserts and attaches a protrusion to a hole may be sufficient.

  The rear case 2d is provided with a drive motor unit 9. The drive motor unit 9 includes a stepping motor (not shown) as a drive source, a drive shaft coupling 9a that transmits the rotation of the stepping motor, and a position sensor 9b. Further, the rear case 2d is provided with engagement holes 2d3 and 2d3 with which the rear panel lock claws 21b and 21b (see FIG. 4) of the rear panel 20 are engaged.

FIG. 8 is an enlarged perspective view showing a joint of the power transmission mechanism, and FIG. 9 is an enlarged perspective view showing a drive shaft coupling connected to the joint.
As shown in FIG. 8, the coupling mechanism 45b of the joint 45 has a cylindrical portion 45b1 and a pair of engagement pieces 45b2 and 45b2. The engagement piece 45b2 is formed in a substantially plate shape, and the outer periphery of the engagement piece 45b2 is formed integrally with the inner wall of the cylindrical portion 45b1. Further, the tip 45b3 of each engagement piece 45b2 is formed to be tapered toward the outside (front).

  As shown in FIG. 9, the drive shaft coupling 9a includes a pair of engaging protrusions 9a1 and 9a1. The engagement protrusion 9a1 is formed in a substantially cylindrical shape, and the tip 9a2 of the engagement protrusion 9a1 is formed to be tapered toward the outside (rear).

  When the rear panel 20 is attached to the air cleaner main body 100, a projection (not shown) formed on the upper portion of the rear panel 20 is located above the recess 2d4 (see FIG. 7) formed in the rear case 2d of the air cleaner main body 100. Then, the rear panel lock claw 21b is inserted into the engagement hole 2d3 by rotating the rear panel 20 toward the air purifier main body 100. Accordingly, the rear panel lock claw 21b engages with the engagement hole 2d3, and the engagement protrusions 9a1 and 9a1 are inserted into the cylindrical portion 45b1, whereby the joint 45 is coupled to the drive shaft coupling 9a. In this case, since the tip 45b3 of the joint 45 and the tip 9a2 of the drive shaft coupling 9a are each tapered, even if the engagement piece 45b2 and the engagement projection 9a1 abut against each other, the tip 45b3 and the tip Either (or both) of 9a2 can escape in the circumferential direction (rotating direction), and the connection between the joint 45 and the drive shaft coupling 9a can be prevented from being hindered.

FIG. 10 is an exploded perspective view showing the cleaning unit.
As shown in FIG. 10, the cleaning unit 30 includes a unit case 31, a brush rotor 32 (cleaning body), a collection brush stay 33, a case lid 34, and a guide shaft 35. In the present embodiment, the recovery mechanism 70 is configured by the unit case 31, the recovery brush stay 33, and the case lid 34.

  The unit case 31 has an upper surface portion 31a, a lower surface portion 31b, a right side surface portion 31c, a left side surface portion 31d, and a rear surface portion 31e, and has a shape whose front surface is opened in a rectangular shape. The upper surface part 31a is formed so that the dimension in the front-rear direction is shorter than that of the lower surface part 31b.

  A detection protrusion 31b1 protruding downward is formed on the lower surface portion 31b. The detected protrusion 31b1 is formed at a position facing the position sensor 9b (see FIG. 7) in the vertical direction, the cleaning unit 30 is lowered, and the detected protrusion 31b1 is a sensor hole 9b1 (see FIG. 7) of the position sensor 9b. ), The switch (not shown) in the sensor hole 9b1 is turned ON, and it can be detected that the cleaning unit 30 is located at the home position.

  Moreover, the hollow part 31b2 in which the lower holding part 51 (refer FIG. 5) of the holder 50 (refer FIG. 5) fits is formed in the lower surface part 31b. On the ceiling surface of the recess 31b2, a lock protrusion 31b3 is formed which is inserted into a rectangular hole 51a (see FIG. 5) formed in the lower holding portion 51. Note that a slide-type lock member (not shown) is attached to the lower surface of the lower holding portion 51 so that the lock protrusion 31b3 protruding from the square hole 51a can be locked.

  A bearing portion 31c1 is formed on the right side surface portion 31c. The bearing portion 31c1 is a circular through hole in which the shaft portion 32a at the right end of the brush rotor 32 is rotatably supported. The right side surface 31c is formed with locking holes 31c2 and 31c2 into which locking claws 34a provided at the right end of the case lid 34 are inserted so as to be able to advance and retract.

  A bearing portion 31d1 is formed on the left side surface portion 31d. The shaft portion 32b at the left end of the brush rotor 32 is rotatably supported. The bearing 31d1 is formed with a notch 31d2 that is open on the front side. When attaching the brush rotor 32 to the unit case 31, the shaft rotor 32 is pushed into the bearing portion 31 d 1 through the notch portion 31 d 2 after the shaft portion 32 a is inserted into the bearing portion 31 c 1. Is supported rotatably. With such a configuration, the brush rotor 32 can be attached to and detached from the unit case 31, and the brush rotor 32 can be removed and cleaned. In addition, by changing the shapes of the left and right shaft portions 32a and 32b, it is possible to prevent an error in the orientation when being attached to the unit case 31.

  In addition, an engagement hole 31d3 into which an engagement protrusion 34b formed at the left end of the case lid 34 is inserted is formed below the left side surface portion 31d. In addition, a bearing portion 31d4 is formed on the left side surface portion 31d so that the shaft portion 33b formed at the left end portion of the collection brush stay 33 is pivotally supported.

  On the inner wall surface of the rear surface portion 31e, rotation restricting protrusions 31e1 and 31e1 are formed on both the left and right sides so as to protrude forward and restrict the rotation operation of the brush rotor 32 within a predetermined rotation range. The rotation restricting protrusion 31e1 has a quadrangular shape in a side view in the left-right direction, and has a front edge 31s and an upper edge 31t.

  The brush rotor 32 includes a substantially semi-cylindrical rotating body 32c extending in the left-right direction, and shaft portions 32a and 32b are formed at both left and right ends of the rotating body 32c. The brush rotor 32 has a collecting brush 32d formed along the axial direction (left-right direction).

  The collection brush 32d is attached to the outer surface of the substantially semi-cylindrical rotating body 32c. The collection brush 32d has inclined flocking 32d1 that is arranged to be inclined with respect to the rotation direction of the rotating body 32c. Thereby, dust can be collected by moving the brush rotor 32 in one direction (so that the tip of the brush faces in the moving direction). Further, the collection brush 32d is configured to have a length L1 (see FIG. 6) excluding the frame portions 18A (see FIG. 6) at both left and right ends of the prefilter 8a.

  Turning brushes 32e and 32e for turning the rotating body 32c are attached to the left and right ends of the rotating body 32c. The turning brush 32e is made of the same material as the collecting brush 32d, and is configured such that the flocking direction is opposite to the inclined flocking 32d1 of the collecting brush 32d.

  The collection brush stay 33 includes a collection brush 33c that transfers dust adhering to the collection brush 32d, and is formed along the axial direction (left-right direction) on the ceiling side of the collection brush 32d. Further, the lower surface of the collection brush stay 33 (the surface on the side of the collection brush 32d) is formed to have substantially the same curvature as that of the collection brush 32d, so that the collection brush 32d and the collection brush 33c are in surface contact. It is configured.

  The collection brush 33c is a brush having a configuration similar to that of the collection brush 32d and the turning brush 32e, and has an inclined flocking 33c1 (see FIG. 14) arranged to be inclined with respect to the rotation direction of the rotating body 32c. . The flocking direction of the inclined flocking 33c1 is set so that the tip of the brush faces the back side of the unit case 31.

  The collection brush 33c is formed to have a length substantially the same as the axial length of the rotating body 32c. The collection brush stay 33 is provided with an urging member (such as a torsion coil spring) 33d that urges the collection brush 33c toward the rotating body 32c.

  The case lid 34 closes the lower part of the front surface of the unit case 31 and is composed of a plate-like member having substantially the same length as the collection brush 32d. A locking claw 34 a is formed at the right end of the case lid 34, and an engaging protrusion 34 b is formed at the left end of the case lid 34. When attaching the case lid 34 to the unit case 31, the engaging claw 34a is pushed into the unit case 31 after the engaging protrusion 34b is first inserted into the engaging hole 31d3, so that the engaging claw 34a is engaged with the engaging hole 31c2. To fit. Further, the case lid 34 can be removed by retracting the engaging claw 34a so as to come out of the engaging hole 31c2. With this configuration, the case lid 34 can be easily attached to and detached from the unit case 31, and the dust collected in the unit case 31 can be easily discharged.

The guide shaft 35 is guided by the cleaning unit 30 and is attached to the rear side of the unit case 31. The guide shaft 35 has a shaft 35a extending in the left-right direction and spur gears 35b, 35b fixed to the left and right ends of the shaft 35a. The spur gear 35 b is configured to mesh with a tooth portion 22 a (see FIG. 4) of the guide rail 22 provided on the rear panel 20. Thereby, rattling around the axis of the cleaning unit 30 can be suppressed. Moreover, since the cleaning unit 30 moves in parallel by providing the guide shaft 35, the collection brush 32d can easily hit the prefilter 8a uniformly.
Further, in the home position that is the lowermost end of the cleaning unit 30, the spur gear 35b and the tooth portion 22a are configured not to mesh with each other. Therefore, when the user removes the cleaning unit 30 once and cleans it and then attaches it to the holder 50 again, spur gears 35b and 35b and tooth portions 22a provided at both ends of the guide shaft 35 even if the cleaning unit 30 is inclined. , 22a is not meshed with teeth shifted in position on the left and right. Therefore, since the cleaning unit 30 is securely attached horizontally, the attachment is stable.

FIG. 11 is a rear perspective view showing the cleaning unit.
As shown in FIG. 11, a recess 31 e 2 that fits with the holder 50 (see FIG. 5) is formed in the rear surface portion 31 e of the unit case 31 in the center in the left-right direction (width direction). Positioning projections 31e3 and 31e3 that fit into the positioning holes 53 (see FIG. 5) are formed in the recess 31e2.

  Further, a shaft housing recess 31e4 for housing the shaft 35a of the guide shaft 35 is formed on the rear surface of the unit case 31. The shaft housing recess 31e4 is formed so as to bulge inside the unit case 31 (see FIG. 10). Further, the shaft 35 a is held by a plurality of shaft holding portions 31 e 5 formed in the shaft housing recess 31 e 4, so that the shaft 35 a is not dropped from the unit case 31.

  Further, gear housing recesses 31e6 and 31e6 for housing spur gears 35b and 35b are formed on the rear surface of the unit case 31. The gear housing recess 31e6 is formed so as to bulge inside the unit case 31. Further, a part of the spur gear 35b protrudes from the gear housing recess 31e6 and is configured to mesh with the guide rail 22 (see FIG. 4).

FIG. 12 is a rear perspective view showing the collecting brush.
As shown in FIG. 12, substantially semicircular end plates 32f and 32f are integrally formed on the left and right ends of a substantially columnar (substantially cylindrical) rotating body 32c, and a shaft portion is formed on the end plates 32f and 32f. 32a and 32b are integrally formed. Further, the rotating body 32c has an edge portion 32c1 formed at one end in the circumferential direction (lower side in the figure), and an edge portion 32c2 formed at the other end (upper side in the figure) that is approximately 180 degrees opposite to the edge portion 32c1. .

  The turning brushes 32e and 32e provided at the left and right ends of the rotating body 32c are longer in the circumferential direction than the collecting brush 32d (see FIG. 10).

FIG. 13 is a perspective view when the cleaning unit is viewed from the front.
As shown in FIG. 13, the collection brush 32d and the turning brush 32e are provided on the rotating body 32c so that one end in the circumferential direction coincides. In addition, the collection brush 32d shown in FIG. 13 is a position when the collection of the dust adhering to the pre-filter 8a is started.

  A collection brush 32d is rotatably supported on the upper part of the unit case 31, and a collection brush stay 33 is attached to the upper part of the collection brush 32d so that the collection brush 32d can be pressed. A case lid 34 is detachably attached to the lower front surface of the unit case 31.

14 is a cross-sectional view taken along line BB in FIG.
As shown in FIG. 14, the collection brush 32 d has inclined flocking 32 d 1 whose inclination direction A 1 is inclined with respect to the rotation direction W of the brush rotor 32. In addition, in the state shown in FIG. 14, it is comprised so that the front-end | tip of the collection brush 32d may face the upper side.

  The turning brush 32 e has inclined flocks 32 e 1 that are inclined with respect to the rotation direction W of the brush rotor 32. The inclination direction A2 of the inclined flock 32e1 is configured to be opposite to the inclination direction A1 of the inclined flock 32d1 of the collection brush 32d.

  The collection brush 33 c has inclined flocks 33 c 1 that are inclined with respect to the rotation direction W of the brush rotor 32. The inclination direction A3 of the inclined flocking 33c1 is set to face the back side of the unit case 31.

  Next, the cleaning operation of the pre-filter 8a in the air cleaner 1 will be described with reference to FIGS. 15 and 16 (refer to other drawings as appropriate). FIG. 15 is a sectional view showing the operation of the cleaning unit during filter cleaning, and FIG. 16 is a side view showing the operation of the turning brush during filter cleaning. 15A shows a state before the cleaning of the prefilter 8a is started, FIG. 15B shows a state immediately after collecting dust adhering to the prefilter 8a, and FIG. 15C shows a brush rotor. FIG. 15D shows a state after the dust is transferred to the collection brush, and FIG. 15E shows a state where the dust is collected in the collection box. FIGS. 15A, 15B, and 15D correspond to the first position, and FIGS. 15C and 15E correspond to the second position. In FIG. 15, dust (dust, dust) DS is schematically illustrated.

  The air cleaner 1 takes in air from the intake port 21a of the rear panel 20 for a certain period of time, filters and cleans it, and exhausts it from the flap 5, so that there is an installation space on the net of the prefilter 8a arranged on the air intake surface. An amount of dust that is proportional to the operating time accumulates. Therefore, when the operation is stopped by the power switch after a predetermined time has elapsed after measuring the accumulated operation time, the LED indicating that the device body is “cleaning” on the front panel 2a after stopping The lamp is turned on, and it is determined whether or not the cleaning unit 30 is at the sensor detection position (home position) by the position sensor 9b installed in the air cleaner body 100.

  Since the detection position of the position sensor 9b is set at the bottom dead center at which the cleaning unit 30 moves up and down, if the position of the cleaning unit 30 cannot be detected, it is located somewhere on the surface of the prefilter 8a. Therefore, the drive motor unit 9 is driven in a direction to be lowered until it can be detected by the position sensor 9b (see FIG. 7). If the position of the cleaning unit 30 cannot be detected even if the number of steps for one way is driven, an error is displayed on the front panel 2a because the cleaning unit 30 has dropped due to some abnormality or the power transmission mechanism 40 has failed.

  When the position of the cleaning unit 30 is detected by the position sensor 9b, the motor in the drive motor unit 9 is activated immediately, and the drive shaft 42 is rotated in the direction in which the cleaning unit 30 is raised. In addition, the present position (height position) of the cleaning unit 30 can be detected by detecting the number of steps using a stepping motor as a motor.

  As shown in FIG. 15A, before cleaning the pre-filter 8a, the cleaning unit 30 rotates counterclockwise, and the collection brush 32d is exposed from the unit case 31 (first position). It is. At this time, the edge 32c1 of the rotating body 32c abuts on the front edge 31s of the rotation restricting protrusion 31e1, and the collection brush 32d of the cleaning unit 30 is in contact with the surface to be cleaned 8a1 of the prefilter 8a. . In the state (first position) shown in FIG. 15A, the driving force from the drive motor unit 9 (see FIG. 7) is transmitted from the drive shaft coupling 9a (see FIG. 9) to the joint 45, and the joint 45 to the shaft 42. As the shaft 42 rotates in the forward direction, the worm gear 43 rotates and the holder 50 rises. As the holder 50 rises, the cleaning unit 30 rises in the S1 direction.

  When the cleaning unit 30 rises in the S1 direction, the dust DS adhering to the surface to be cleaned 8a1 is collected by the collecting brush 32d while the position (angle) of the rotating body 32c remains unchanged, and the state shown in FIG. To. That is, since the collection brush 32d has the inclined flocking 32d1 (see FIG. 14) facing upward and is in a state opposite to the surface to be cleaned 8a1, dust on the surface to be cleaned 8a1 can be collected. Further, when the cleaning unit 30 is raised, a force that rotates the rotating body 32c in the counterclockwise direction acts, but the edge portion 32c1 of the rotating body 32c already comes into contact with the front edge 31s of the rotation restricting protrusion 31e1. Since the rotating body 32c does not rotate, the state where the collection brush 32d is exposed to the outside (first position) can be maintained. For this reason, the dust adhering to the to-be-cleaned surface 8a1 of the pre-filter 8a can be removed along the moving direction of the cleaning unit 30. In addition, it is preferable to make the moving amount which raises the cleaning unit 30 into the range of the allowance which can make dust DS adhere to the collection brush 32d.

  Further, in the cleaning unit 30, the worm gear 43 is rotated by the drive of the drive motor unit 9, so that the worm gear 43 and the rack gear 41 a installed at the center of the rear surface of the rear panel 20 mesh with each other and are parallel to the prefilter 8 a. Thus, it moves up and down along the guide rails 22 provided on the left and right sides of the rear panel 20.

  Then, in the state shown in FIG. 15B, the cleaning unit 30 is lowered in the S2 direction. Thereby, the rotating body 32c turns (turns in the clockwise direction W1), and the collection brush 32d is conveyed to the back side in the unit case 31 as shown in FIG. position). That is, when the cleaning unit 30 is lowered in the S2 direction, as shown in FIG. 16A, the turning brush 32e moves while being caught by the projection 18d formed on the frame 18A of the prefilter 8a, thereby turning the turning brush. 32e rotates in the clockwise direction W1.

  The collection brush 32d rotates in the clockwise direction W1 while being in contact with the collection brush 33c, but the collection brush 32d and the collection brush 33c are in order of the inclination directions A1 and A2 of the brush (see FIG. 14). Therefore, the dust DS is conveyed to the back side of the unit case 31 as shown in FIG. 15C without being captured by the collection brush 33c.

  Further, when the collecting brush 32d is rotated and conveyed in the clockwise direction W1 into the unit case 31, as shown in FIG. 15C, the edge portion 32c2 of the rotating body 32c becomes the rotation restricting protrusion. Abutting on the upper edge 31t of 31e1, the rotation operation of the collecting brush 32d is restricted. At this time, the outer end 32d2 in the circumferential direction of the collection brush 32d is located on the back side of the outer end 33c2 in the circumferential direction of the collection brush 33c. By setting such a positional relationship, all of the dust DS adhering to the collection brush 32d can be captured by the collection brush 33c. The outer end portion 32d2 is not limited to the configuration positioned on the back side of the outer end portion 33c2, and the outer end portion 32d2 may be configured to be at the same position as the outer end portion 33c2.

  Then, the cleaning unit 30 is raised in the S1 direction from the state shown in FIG. 15C (second position). As a result, as shown in FIG. 16B, the turning brush 32e comes into contact with the protrusion 18d of the frame 18A, whereby the rotating body 32c rotates in the counterclockwise direction W2, and FIG. To the state (first position) shown in FIG. At this time, the dust DS adhering to the collection brush 32d is captured (delivered) by the collection brush 33c. That is, since the collection brush 33c is in a reverse state with respect to the collection brush 32d, the dust DS attached to the collection brush 32d is captured by the collection brush 33c.

  Further, when the rotating body 32c rotates in the counterclockwise direction W2 from the state of FIG. 15C, the edge 32c1 of the rotating body 32c comes into contact with the front edge 31s of the rotation restricting protrusion 31e1, and the rotating body 32c The rotational movement is restricted. At this time, the edge portion 32c2 of the rotating body 32c is positioned so as to substantially overlap the outer end portion 33c2 of the recovery brush 33c (see FIG. 15D).

  Then, the cleaning unit 30 is lowered in the S2 direction from the state of FIG. Thus, as in the case described with reference to FIG. 16A, the turning brush 32e is hooked on the protrusion 18d of the pre-filter 8a, whereby the rotating body 32c rotates in the clockwise direction W1, and FIG. The state shown in (2nd position) is reached. At this time, the dust DS adhering to the collection brush 33c is scraped (separated) by the edge 32c2 of the rotating body 32c and pushed backward from the collection brush 33c. The dust DS separated from the collection brush 33c is collected in a collection box Q (see FIG. 14) provided at the bottom of the unit case 31. The operation from FIG. 15D to FIG. 15E is not limited to one time, and may be performed continuously a plurality of times.

  Thus, by performing the series of operations of FIGS. 15A to 15E, the cleaning can be continued while collecting the dust DS in the collection box Q of the cleaning unit 30. For example, the prefilter 8a is divided into areas E1, E2, E3, and E4 shown in FIG. 6, and the operations shown in FIGS. 15A to 15E are performed in the areas E1, E2, E3, and E4. By executing, the entire surface of the prefilter 8a can be cleaned.

  When the cleaning of all the surfaces to be cleaned 8a1 of the pre-filter 8a is completed, the motor in the drive motor unit 9 is driven in reverse and the cleaning unit 30 is lowered. Then, when the cleaning unit 30 has been detected at the detection position of the position sensor 9b, which is the lower limit position, the drive motor unit 9 is stopped, the [cleaning] indicator LED on the front panel 2a is turned off, and the automatic cleaning process ends. To do.

  In addition, there may be a user who operates and uses day and night continuously with almost no operation of the power switch. As an automatic cleaning sequence in this case, after the lapse of a time determined by measuring the continuous operation time, the apparatus is automatically stopped and the above-described automatic cleaning operation process is executed. After the completion of automatic cleaning, it automatically returns to the previous operating state.

  In addition to automatic execution, there is a case where the user wants to execute automatic cleaning or to stop an apparatus that has started automatic cleaning, so an “automatic cleaning” button installed on the operation panel of the front panel 2a. By pressing, "automatic cleaning" can be started or stopped.

  As described above, in the air cleaner 1 of the present embodiment, the air cleaner main body 100 including the air blowing mechanism 10 and the prefilter 8a provided on the upstream side of the air blowing mechanism 10 is opposed to the prefilter 8a. A cleaning unit 30 provided between the rear panel 20 provided in the air cleaner main body 100, the prefilter 8a and the rear panel 20 for cleaning the prefilter 8a, and a cleaning unit 30 along the surface 8a1 to be cleaned of the prefilter 8a. A collecting brush 32d that removes dust DS by contacting the surface to be cleaned 8a1, and a power transmission mechanism 40 that reciprocates the power transmission mechanism 40 and a driving motor unit 9 that applies a driving force to the power transmission mechanism 40. And a collection mechanism 70 that collects the dust DS removed by the collection brush 32d. According to this, by providing the cleaning unit 30 with the collection brush 32d and the collection mechanism 70, the dust attached to the collection brush 32d during the cleaning of the prefilter 8a can be collected immediately, and the prefilter 8a as in the conventional case. Since there is no need to return to the collection box that is removed from the storage box, the cleaning time of the prefilter 8a can be shortened. In addition, by providing the cleaning unit 30 with the collection brush 32d and the recovery mechanism 70, scattering of the dust DS during cleaning can be suppressed. Furthermore, since the brush with the dust DS does not move on the prefilter 8a after the cleaning, the dust DS can be prevented from adhering to the prefilter 8a after the cleaning.

  Further, in the present embodiment, the brush rotor 32 is a rotary type, and includes a collection brush 32d having inclined flocking 32d1 that is planted with an inclination with respect to the rotation direction of the brush rotor 32, and collects dust DS. A brush turning mechanism 60 for turning the collection brush 32d (a turning brush 32e and a protrusion 18d of the prefilter 8a, see FIG. 16A) is provided. According to this, it becomes unnecessary to provide a power mechanism such as a motor for turning the cleaning unit 30, and the configuration of the cleaning unit 30 can be simplified. Moreover, it becomes unnecessary to electrically connect the rear panel 20 provided with the cleaning unit 30 and the air purifier main body 100.

  In the present embodiment, the brush turning mechanism 60 has a plurality of protrusions 18d provided on the frame 18A of the pre-filter 8a along the moving direction (vertical direction) of the cleaning unit 30, and a position facing the protrusions 18d. And a turning brush 32e provided in the direction opposite to the flocking direction (inclination direction A1) of the collection brush 32d (inclined flocking 32d1). According to this, the collection brush 32d can be turned (reversed) with a simple configuration.

  Moreover, in this embodiment, when the collection | recovery mechanism 70 turns the collection brush 32d, the collection | recovery brush 33c which capture | acquires the dust DS adhering to the collection brush 32d, and the collection | recovery brush 33c are turned to the collection brush 32d. And an urging member 33d for urging, and the collection brush 33c has an inclined flocking 33c1 in which flocking is performed with an inclination with respect to the rotation direction W (see FIG. 14). According to this, dust DS adhering to the collection brush 32d can be captured by the collection brush 33c without using a complicated mechanism.

  In the present embodiment, the cleaning unit 30 includes a rotation restricting protrusion that restricts the collecting brush 32d to a first position facing the prefilter 8a and a second position facing the recovery brush 33c. According to this, the dust DS adhering to the pre-filter 8a can be reliably collected by restricting to the first position, and turned to the first position by restricting to the second position. The dust DS adhering to the collection brush 32d can be reliably captured by the collection brush 33c.

  In the present embodiment, the power transmission mechanism 40 is provided with a holder 50 that holds the cleaning unit 30 movably, and the cleaning unit 30 is detachably attached to the holder 50. Accordingly, the cleaning unit 30 can be easily attached and detached, and the cleaning unit 30 can be easily washed.

  In this embodiment, when the pre-filter 8a is not cleaned, the cleaning unit 30 is retracted to a position where it does not overlap the surface to be cleaned 8a1 (a position where it does not overlap in the front-rear direction) (see FIG. 3). According to this, since the air passing through the prefilter 8a is not obstructed by the cleaning unit 30 during the air cleaning operation, the entire surface of the prefilter 8a can be used effectively.

In addition, as another effect, by arranging the joining portion, which is a portion where the holder 50 (cleaning unit 30) is driven, at the approximate center of the holder 50 (cleaning unit 30), the movement resistance of the left and right is reduced during the vertical movement. It is easy to balance, and it is difficult for phenomena such as catching and twisting to occur.
Further, since the rear panel 20 is provided with the worm gear 43 and the cleaning unit 30, the reaction force of the drive gear does not directly act in the out-of-plane direction of the rear panel 20, so that the vibration applied to the rear panel 20 even when the shaft 42 rotates. Is light and can realize quiet driving.
Further, by providing the guide shaft 35 and meshing the spur gears 35b and 35b with the tooth portions 22a and 22a, the cleaning unit 30 moves in parallel, so that the collecting brush 32d can easily hit the prefilter 8a uniformly.
Further, since the spur gear 35b and the tooth portion 22a are configured not to mesh with each other in the home position which is the lowermost end of the cleaning unit 30, when the cleaning unit 30 is attached to the holder 50, the spur gears 35b and 35b Tooth portions 22a and 22a are not meshed with teeth that are displaced on the left and right. Therefore, since the cleaning unit 30 is securely attached horizontally, the attachment is stable.

  Moreover, since the drive motor unit 9 is fixed to the air cleaner body 100, external force is not repeatedly applied to the harness of the motor, and the reliability as a product can be ensured. Further, since the drive motor unit 9 is provided on the air cleaner main body 100 side, the rear panel 20 can be reduced in weight, and the rear panel 20 can be easily attached and detached.

  By the way, if the brush rotor 32 is rotated by disposing a gear or the like at the shaft end portion of the brush rotor 32, the force of the brush rotor 32 in a direction away from the net surface of the prefilter 8a due to the driving reaction force with the counterpart gear. Work. And the contact dimension with the pre-filter 8a is changed, so that the cleaning effect is lowered, or the phenomenon that the gear pitch is shifted to cause vibration and abnormal noise is likely to occur. In the present embodiment, since a gear or the like is not disposed on the shaft portions 32a and 32b of the brush rotor 32, a phenomenon in which abnormal noise is generated due to vibration hardly occurs.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention. For example, the brush rotor 32 including the collection brush 32d including the inclined flocking 32d1 has been described as an example, but a configuration in which the brush is provided on the entire surface of the cylindrical brush rotor may be used. In this case, by setting the brush rotor so as to bite into the prefilter 8a when moving upward with respect to the prefilter 8a, the brush roller hair is caught in the mesh of the prefilter 8a. Even if it is not forced to rotate, it can be moved while rotating on the pre-filter 8a by the vertical movement of the unit case 31. Therefore, a gear or the like for driving the brush rotor is unnecessary, and there is an effect that vibrations due to the gear or the like do not occur. Moreover, the hair of the brush rotor bites into the mesh of the prefilter 8a, so that an effect of firmly catching dust accumulated on the mesh of the prefilter 8a is also achieved.

  In the present embodiment, the cleaning unit 30 that collects dust attached to the pre-filter 8a has been described. However, the present invention is not limited to this, and in order to collect dust attached to the dust collection filter 8b and the deodorizing filter 8c, respectively. A cleaning unit 30 may be provided. In this case, for the drive system components such as the drive motor unit 9 (drive shaft coupling 9a), the joint 45, the shaft 42, the rack gear 41a, and the rack gear case 41, the configuration described in the previous embodiment is appropriately diverted. , Can be changed and combined.

  In the present embodiment, the case where the cleaning unit 30 is provided on the rear panel 20 has been described as an example. However, as another embodiment, the cleaning unit 30 is provided on the air purifier main body 100 side. Also good. In this case, the guide rail 22 provided on the rear panel 20 side in the previous embodiment may be provided on the rear case 2d side. When the guide rail 22 is provided on the rear case 2d side, the guide rail 22 is arranged in the vertical direction outside the prefilter 8a (and the frame portion 18A), so that the prefilter 8a is not hindered from being attached or detached.

  In addition to the drive motor unit 9 (drive shaft coupling 9a), a joint 45, a shaft 42, a rack gear 41a, a rack gear case 41, and the like may be provided on the rear case 2d side. When these drive system components are provided near the center in the left-right direction on the rear case 2d side, various filters such as the pre-filter 8a, the dust collection filter 8b, and the deodorizing filter 8c are divided on the left and right sides. It becomes easy to attach and detach, and handling is improved.

  In addition to this configuration, considering the attachment / detachment of various filters such as the prefilter 8a, the dust collection filter 8b, and the deodorizing filter 8c, at least one of the left and right sides on the rear case 2d side (at least one of the left side and the right side, or both sides) ) May be provided with each component of the drive system. With this configuration, when various filters such as the pre-filter 8a, the dust collection filter 8b, and the deodorizing filter 8c are attached / detached, the shaft 42 extending in the vertical direction is unlikely to hinder its operation, and thus handling is improved. .

  In the previous embodiment, the drive force of the drive motor unit 9 (drive shaft coupling 9a) is transmitted to the joint 45 to rotate the shaft 42. However, the present invention is not limited to this, and the drive motor unit 9 is not limited thereto. The shaft 42 may be directly connected to the shaft 42 so that the shaft 42 rotates.

  In addition, when providing the cleaning unit 30 in the air cleaner main body 100 side, various structures other than having demonstrated here can be combined appropriately by diverting and changing the structure of previous embodiment suitably.

  Further, a sensor for detecting the amount of dust may be provided in the cleaning unit 30 so that a notification means (such as a lamp) notifies when the dust DS has accumulated.

  Moreover, you may make it switch the frequency which operates the cleaning unit 30 according to use environments, such as smoking and not smoking.

  Further, the unit case 31 can be made transparent so that the internal dust DS can be confirmed without opening the case lid 34.

  Further, in the air cleaner 1, the way in which the dust DS is attached is not uniform, and the dust DS is likely to be attached to the position facing the suction port of the blower mechanism 10, and the lower end or the upper end of the prefilter 8a Since it is difficult to attach dust, the repetitive operation may be increased for a place where the dust DS is easily attached, and the repetitive operation may be reduced for a place where the dust DS is difficult to be attached. Cleaning time can be shortened by reducing repetition.

DESCRIPTION OF SYMBOLS 1 Air cleaner 2 Housing 2d Rear case 8 Filter member 8a Pre filter (filter)
8b Dust collection filter 8c Deodorizing filter 9 Drive motor unit 9a Drive shaft coupling 9b Position sensor 10 Blower mechanism 18A Frame (frame)
18d Protrusion 20 Rear panel (panel)
21a Intake port 21b Rear panel lock claw 22 Guide rail 22a Tooth part 30 Cleaning unit 31 Unit case 31b1 Detected protrusion 31e1 Rotation restricting protrusion 32 Brush rotor (cleaning body)
32a, 32b Shaft portion 32c Rotating body 32d Collection brush 32d1 Inclined flocking 32e Turning brush 32e1 Inclined flocking 33 Collection brush stay 33a, 33b Shaft portion 33c Collection brush 33c1 Inclined flocking 33d Energizing member 34 Case lid 35 Guide shaft 40 Power transmission mechanism 41 rack gear case 41a rack gear 42 shaft 43 worm gear 44 shaft bearing 45 joint 50 holder 60 brush turning mechanism 70 recovery mechanism 100 air purifier main body A1, A2, A3 tilt direction Q recovery box

The present invention relates to an air purifier body having a blower mechanism and a filter provided on the upstream side of the blower mechanism, a panel provided on the air cleaner body so as to face the filter, and the filter and the panel. A cleaning unit provided between the cleaning surface of the filter to remove dust in contact with the cleaning surface of the filter, a power transmission mechanism for reciprocating the cleaning unit along the cleaning surface of the filter, and the power A driving source that applies a driving force to the transmission mechanism, a plurality of protrusions provided on the filter frame along the moving direction of the cleaning unit, and a flocking direction of the collection brush at a position facing the protrusions. and a brush turning mechanism configured by turning brushes planted reversed, the cleaning unit, the rolling when the cleaning unit is moved Brush by rotating in contact with the protrusion, characterized in that it comprises a collection Organization for collecting the dust removed by the collecting brush.

The guide shaft 35 guides the cleaning unit 30 and is attached to the rear side of the unit case 31. The guide shaft 35 has a shaft 35a extending in the left-right direction and spur gears 35b, 35b fixed to the left and right ends of the shaft 35a. The spur gear 35 b is configured to mesh with a tooth portion 22 a (see FIG. 4) of the guide rail 22 provided on the rear panel 20. Thereby, rattling around the axis of the cleaning unit 30 can be suppressed. Moreover, since the cleaning unit 30 moves in parallel by providing the guide shaft 35, the collection brush 32d can easily hit the prefilter 8a uniformly.
Further, in the home position that is the lowermost end of the cleaning unit 30, the spur gear 35b and the tooth portion 22a are configured not to mesh with each other. Therefore, when the user removes the cleaning unit 30 once and cleans it and then attaches it to the holder 50 again, spur gears 35b and 35b and tooth portions 22a provided at both ends of the guide shaft 35 even if the cleaning unit 30 is inclined. , 22a is not meshed with teeth shifted in position on the left and right. Therefore, since the cleaning unit 30 is securely attached horizontally, the attachment is stable.

Claims (7)

An air cleaner body having a blower mechanism and a filter provided on the upstream side of the blower mechanism;
A panel provided in the air cleaner main body so as to face the filter;
A cleaning unit provided between the filter and the panel and cleaning the filter;
A power transmission mechanism for reciprocating the cleaning unit along the surface to be cleaned of the filter;
A driving source for applying a driving force to the power transmission mechanism,
The said cleaning unit is equipped with the cleaning body which contacts the said to-be-cleaned surface, and removes dust, and the collection | recovery mechanism which collect | recovers the dust removed by the said cleaning body, The air cleaner characterized by the above-mentioned. The cleaning body is a rotary type, and includes a collection brush formed with a flocking direction inclined with respect to the rotation direction of the cleaning body,
The air cleaner according to claim 1, further comprising a brush turning mechanism that turns the collecting brush that collects dust. The brush turning mechanism is
A plurality of protrusions provided along a moving direction of the cleaning unit on a frame of the filter;
The air cleaner according to claim 2, further comprising a turning brush planted in a direction opposite to a planting direction of the collection brush at a position facing the protrusion. The collection mechanism includes a collection brush that captures dust attached to the collection brush when the collection brush turns, and a biasing member that urges the collection brush toward the collection brush. Prepared,
The air cleaner according to claim 2 or 3, wherein the recovery brush has an inclined flocking planted with an inclination with respect to the rotation direction.   The said cleaning unit is equipped with the rotation control protrusion which controls the said collection brush to the 1st position facing the said filter, and the 2nd position facing the said collection brush, The Claim 4 characterized by the above-mentioned. The air cleaner described. The power transmission mechanism includes a holder that movably holds the cleaning unit,
The air cleaner according to any one of claims 1 to 5, wherein the cleaning unit is detachably attached to the holder.   The air cleaner according to any one of claims 1 to 6, wherein the cleaning unit is retracted to a position that does not overlap the surface to be cleaned when the filter is not cleaned. .

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