JP4118289B2 - Dust collector and vacuum cleaner - Google Patents

Description

  The present invention relates to a dust collecting container having a dust collecting part for collecting dust separated by dust separating means for separating sucked dust-containing air into air and dust, and a vacuum cleaner equipped with the dust collecting container. .

  Conventionally, a vacuum cleaner provided with a dust separation part that separates dust-containing air sucked by the negative pressure of an electric blower into air and dust, and a dust collection part that collects the dust separated by the dust separation part Is known (see, for example, Patent Document 1).

  In this vacuum cleaner, a dust collecting part for storing dust is formed in the lower part, a negative pressure chamber is formed in the upper part of the dust collecting part, a dust separating part is formed in the negative pressure chamber, and a guide tube extending vertically By this, the dust separation part and the dust collection part are communicated.

The dust-containing air sucked into the vacuum cleaner is separated into air and dust by the dust separator, and the air flows into the negative pressure chamber, while the dust is accumulated in the dust collector through the guide tube. It is like that.
JP2004-181210

  By the way, in the above-mentioned electric vacuum cleaner, if the speed of the air flowing into the negative pressure chamber increases as the dust accumulated in the dust collector increases, the air in the dust collector may be drawn into the dust separator. there were.

  Furthermore, the dust accumulated in the dust collecting part together with the air drawn into the dust separating part also flows back into the dust separating part, and the dust separating part may be clogged.

  Then, this invention makes it a subject to provide the dust collecting container which can prevent that the dust isolate | separated and accumulate | stored from the air flows backward, and a vacuum cleaner provided with the same.

In order to solve the above problems, the present invention is a dust-containing air sucked by the negative pressure of the electric blower are separated by the dust separation means for separating the air and dust, which is formed in an upper portion of the dust separation unit waste a dust collection container provided with a dust collection unit for dust collecting dust discharged from the outlet, the dust collection unit, the opening formed in the lower surface of one end portion connected to the outlet, or Tsuhobo horizontal a communication air passage extending in a direction, and a collecting chamber which extends substantially vertically downward from the other end of the communication air passage, the collection chamber extends vertically, and one facing the communication air passage An exhaust opening that is closed by a dust collecting filter is formed on a side surface, and the communication air passage communicates above the exhaust opening.

  According to the dust collecting container of the present invention, the dust discharged from the discharge port of the dust separating means is moved in a substantially horizontal direction along the communication air passage, and then dropped and accumulated substantially vertically downward. It has become.

  Therefore, even if air is drawn into the dust separation means due to an increase in the amount of dust accumulated in the collection chamber, the dust that falls and accumulates in the collection chamber does not flow back into the dust separation means. , Can reliably accumulate.

  As a result, it is possible to prevent the dust separated and accumulated from the air by the dust separating means from flowing backward.

Hereinafter, an example which is an embodiment of a vacuum cleaner concerning this invention is described based on a drawing.
[Constitution]
A vacuum cleaner 10 shown in FIG. 1 includes a vacuum cleaner main body 11 and a dust collecting hose 12 having one end detachably connected to a connection port 11A of the vacuum cleaner main body 11 and a hand operation tube 13 provided at the other end. And an extension pipe 14 that is detachably connected to the hand operation pipe 13 and a suction port body 15 that is detachably connected to the distal end portion of the extension pipe 14. The operation tube 13 is provided with an operation unit 13A, and the operation unit 13A is provided with a plurality of operation switches 13a.

  A suction chamber (not shown) in which a suction opening (dust suction port) (not shown) for sucking dust is formed on the bottom surface of the suction port body 15 is formed. The suction chamber includes an extension pipe 14 and a dust collecting hose. 12 communicates with a suction connection port 57a of a dust collection unit 50 (see FIG. 6) provided in the cleaner body 11.

  The vacuum cleaner main body 11 includes a main body case 20, a dust collection unit 50 (see FIG. 6) mounted in the main body case 20, and an electric blower 24 described later.

  As shown in FIGS. 2 to 5, a dust collection unit chamber (mounting portion) 22 is formed on the front side of the main body case 20, and in the dust collection unit chamber 22, the dust separation unit 50 described later is separated. A unit (dust separating means) 400 and a dust collecting unit (dust collecting container) 410 are detachably mounted.

  When the dust separation unit 400 and the dust collection unit 410 are mounted in the dust collection unit chamber 22, they are locked by locking means (not shown), and the dust separation unit 400, the dust collection unit 410, and the main body case 20 are connected. Fixed.

  A lever K (see FIG. 2) for releasing the engagement between the dust collecting unit 410 and the main body case 20 is provided at the front end of the main body case 20. A lever (not shown) for releasing the engagement between the dust separation unit 400 and the main body case 20 is provided.

  An opening 23 is formed in the upper part of the dust collection unit chamber 22 (see FIG. 3), and the opening 23 is closed by lid cases 21A and 21B as shown in FIG. Further, an electric blower 24 is provided on the rear side of the main body case 20, and a cylindrical connection air passage portion 25 having a front opening 25B is formed on the front side (right side in FIG. 2) of the electric blower 24. A lattice member 25K is disposed in the connection air passage portion 25, and a seal member 27 is attached to the front opening 25B. A connection opening 25b is formed in the rear wall 25A of the connection air passage 25, and the connection opening 25b communicates with the suction opening 24A of the electric blower 24.

  As shown in FIGS. 3 to 5, the dust collection unit chamber 22 is provided with a drive gear (first transmission means) Ga and a drive motor (drive means) M that rotates the drive gear Ga.

  As shown in FIGS. 6 to 8, the dust collection unit 50 includes a dust separation unit 400 that is dust separation means, and a dust collection unit 410 that is a dust collection container.

  The dust separation unit 400 includes a dust separation part 52, a filter part 80 integrated with the dust separation part 52, and a lid case 21 </ b> A provided on the filter part 80.

  The dust separator 52 includes a separation chamber 54 formed in a cylindrical shape by the outer peripheral wall 53, and a substantially conical dust separation means 55 provided in the separation chamber 54 along the axis of the separation chamber 54. A suction air passage portion 56 provided outside the right side wall 54A (see FIG. 9) of the separation chamber portion 54 and a guide air passage tube 57 for guiding air from the suction connection port 57a (see FIG. 6) to the separation chamber portion 54. And have. The suction connection port 57a communicates with the connection port 11A of the cleaner body 11 when the dust separation unit 400 is mounted in the dust collection unit chamber 22 of the cleaner body 11.

  As shown in FIG. 7, an introduction opening (discharge port) 53A for discharging dust separated from the air to the dust collection unit 70 and a discharge opening 84K (see FIG. 10) are provided at the upper portion of the outer peripheral wall 53 of the separation chamber portion 54. ) And an introduction hole 153 </ b> B for introducing the dust discharged from the separation chamber 54 into the separation chamber portion 54.

  Further, as shown in FIGS. 9 and 10, a circular opening 154A and a fan-shaped opening 154B are formed on the right side wall 54A of the separation chamber 54, and a dust separating means 55 is attached to the opening 154A. A net filter NF2 is attached to the opening 154B. Further, a connection opening 54Aa is formed in the right side wall 54A, and a guide air passage tube 57 is connected to the connection opening 54Aa, and the separation chamber portion 54 and the guide air passage tube 57 communicate with each other.

  The left side surface (in FIG. 7) of the separation chamber portion 54 is opened, and a lid 58 (see FIG. 8) is detachably attached to the opening 54Ba (see FIG. 9).

  As shown in FIG. 10, the dust separating means 55 is attached to the periphery of the connecting frame 55c, a circular plate 55a, a ring frame 55b, a plurality of connecting frames 55c connecting the circular plate 55a and the ring frame 55b. And a net filter NF1.

  The suction air passage portion 56 communicates with the separation chamber portion 54 via the opening 154A of the right side wall 54A and the net filter NF1, and in the separation chamber portion 54 via the net filter NF2 of the opening 154B of the right side wall 54A. (See FIG. 9).

  Further, the suction air passage section 56 communicates with a storage case 81 of the filter section 80 described later, and dust collection described later through a connection opening 56A formed in the right side wall section 156 (see FIG. 7). The case 74 communicates with the dust collection chamber 73.

  The guide air duct 57 is configured to rotate the air introduced into the separation chamber 54 from the connection opening 54Aa of the separation chamber 54 in the counterclockwise direction as shown by the arrows in FIGS.

  The dust collection unit 410 includes a dust collection unit 70 and a lid case 21 </ b> B provided on the dust collection unit 70.

  As shown in FIGS. 11 and 12, the dust collecting section 70 includes a communication case section (communication air passage) 72 that forms a communication path 71 (see FIG. 7) extending substantially horizontally along the left-right direction, and this communication. A dust collection case portion (collection chamber) 74 that communicates with the right end portion of the case portion 72 and extends substantially vertically downward and forms a dust collection chamber 73 (see FIG. 7) for accumulating dust.

  An opening 72A is formed in the lower surface near the left end of the communication case portion 72, and this opening 72A is connected to the introduction opening 53A of the dust separation portion 52 as shown in FIG. Thus, the communication case portion 72 is connected to the introduction opening 53A and extends substantially in the horizontal direction.

  Further, a connection opening 75 is formed in the left side wall 74A, which is one side surface extending in the vertical direction of the dust collection case 74, and a net filter NF3 is attached to the connection opening 75 and closed ( (See FIG. 13).

  As shown in FIG. 12, a cover plate 170 is attached outside the net filter NF3 and at a position separated from the net filter NF3 by a predetermined distance. The cover plate 170 is fixed to the outside of the left side wall 74A.

  An opening 170A is formed in the lower portion of the cover plate 170, and the upper portion of the net filter NF3 is covered with the cover plate 170 from a position separated by a predetermined distance (see FIG. 7).

  The opening 170A of the cover plate 170 is connected to the connection opening 56A of the suction air passage section 56 as shown in FIG.

  Here, the dust collecting case portion 74 includes a case portion 174 (see FIG. 13) whose right side surface is opened and a lid body 77 (see FIG. 14) which is attached to the right side surface opening 76 of the case portion 174 so as to be freely opened and closed. It is in a state of being divided into two vertically divided.

  As shown in FIG. 13, the case portion 174 has a left side wall portion 74A to which the net filter NF3 is attached, and a peripheral wall portion 74B that surrounds the left side wall portion 74A and is integrated with the communication case portion 72. is doing.

  Further, as shown in FIG. 14, the lid 77 includes a bottom wall portion 77A, side wall portions 77B and 77C extending upward from front and rear ends of the bottom wall portion 77A, and side wall portions 77B and 77C. An upper wall portion 77D spanned between the upper portions, a bottom wall portion 77A, side wall portions 77B and 77C, and a cover plate portion 77E surrounded by the upper wall portion 77D.

  Further, as shown in FIG. 14, an arm portion 77M extending toward the case portion 174 is formed on the bottom wall portion 77A of the lid 77, and a shaft portion 77J is provided on the arm portion 77M. 77J is rotatably held by a bearing portion 78 provided at the bottom of the case portion 174. That is, the lid 77 has a bottom wall portion 77 </ b> A that is a lower end portion hinged to the case portion 174.

  The lid 77 rotates about the shaft 77J, so that the opening 76 of the dust collecting case 74 is opened and closed.

  On the other hand, a hook (not shown) is formed on the upper surface of the upper wall portion 77D, and the lid body 77 is prevented from opening when the hook is locked to a locking portion (not shown) of the lid body 77. And if the release button 21Ba provided in the cover case 21B of the dust collection part 70 is operated as shown in FIG. 15, the latch of the hook will be cancelled | released. At this time, when the lid body 77 is placed on the lower side, the lid body 77 is rotated and opened around the shaft portion 77J by its own weight.

  Further, the lateral width of the side wall portions 77B and 77C of the lid 77 is larger than the lateral width of the case portion 174. The lateral width of the lid 77 is the left and right of the dust collecting case portion 74. It is set to 1/2 or more of the direction width.

  When the dust collection unit 410 is attached to the dust collection unit chamber 22 of the cleaner body 11 to which the dust separation unit 400 is attached, the dust separation unit 52 is introduced into the opening 72A of the dust collection unit unit 410 as shown in FIG. The opening 53A is connected, and the opening 170A of the cover plate 170 of the dust collection unit 410 is connected to the connection opening 56A of the suction air passage unit 56 of the dust separation unit 400.

  The filter unit 80 includes a cylindrical storage case 81 whose rear surface (left side in FIG. 8) is open, a pleated filter body (secondary filter) 100 that is rotatably mounted in the storage case 81, and It has a sweeping body 300 (see FIG. 16) that rotates integrally with the pleated filter body 100. Further, a dust separation part 52 is integrally formed on the front surface (right side in FIG. 6) of the front wall (partition wall) 84 of the storage case 81, and the inside of the storage case 81 is a filter chamber 181 (see FIG. 10). ).

  As shown in FIG. 16, the front wall portion 84 of the storage case 81 is formed with a connection opening 84A and a discharge opening 84K for discharging dust at the upper portion, and the connection opening 84A is a suction air passage portion 56 (see FIG. 7). It is connected to the. The inside of the storage case 81 and the suction air passage portion 56 communicate with each other through the connection opening 84A.

  As shown in FIG. 10, the discharge opening 84 </ b> K is closed by a closing lid 450, and the closing lid 450 is urged rearward (leftward in FIG. 10) by a spring 401. Further, the closing lid 450 can move forward (rightward) against the biasing force of the spring 401, and the discharge opening 84K is opened by moving forward. The closing lid 450 is provided with a protrusion 450A, and the protrusion 450A protrudes into the storage case 81 from the discharge opening 84K.

  The discharge opening 84 </ b> K communicates with the introduction hole 153 </ b> B of the dust separator 52 by the communication member 403.

  Further, as shown in FIG. 2, a pair of protrusions 88 are provided in the vicinity of the connection opening 84A of the front wall portion 84 so as to be spaced apart from each other by a predetermined distance, and a peak portion 104A (upstream side) of the pleated filter 104 described later is provided. The projections 104Ab of the ridges) are in contact with each other. A shaft 84J is formed at the center of the front wall 84 as shown in FIG.

  An inner peripheral wall surface of the storage case 81 serves as a dust receiving portion 86 that receives dust dropped from the pleated filter 104.

  As shown in FIG. 17, the pleated filter body 100 includes a cylindrical frame body 101, a shaft portion 101A provided at the center position of the frame body 101, and a plurality of pleats for forming pleats radially from the shaft portion 101A. Pleated bones 102 and 103, and a pleated filter 104 which is a filter formed by being attached to the pleated bones 102 and 103.

  As shown in FIG. 2, the shaft 84J of the front wall portion 84 is relatively rotatably inserted into the shaft hole 101Aa of the shaft portion 101A so that the pleat filter body 100 rotates about the shaft 84J. It has become.

  A cylindrical portion 110 having a short length as shown in FIG. 17 is formed at the rear end of the frame 101, and three small diameters having small diameters along the circumferential direction as shown in FIG. 18 are formed on the outer peripheral surface of the cylindrical portion 110. The portions 110A are formed at equal intervals. And between the small diameter part 110A and the small diameter part 110A is the large diameter part 110B.

  The small diameter portion 110 </ b> A and the large diameter portion 110 </ b> B are detected by the microswitch S <b> 1, and the microswitch S <b> 1 (not shown) is provided in the dust collection unit chamber 22 of the cleaner body 11. In this embodiment, for example, the micro switch S1 is turned on when the large diameter portion 110B is detected, and is turned off when the small diameter portion 110A is detected.

  A gear 107 is formed on the rear end surface of the cylindrical portion 110, and the gear 107 and the cylindrical portion 110 protrude outward from the storage case 81, and the gear 107 is a drive gear Ga for the dust collection unit chamber 22 of the cleaner body 11. The pleated filter body 100 is rotated in the storage case 81 by driving the motor M.

  When the dust separation unit 400 is attached to the dust collection unit chamber 22 of the cleaner body 11, the gear 107 is engaged with the drive gear Ga. When the dust separation unit 400 is lifted from the dust collection unit chamber 22, the gear 107 is driven. Detaching from the Ga allows the dust separation unit 400 to be easily removed from the dust collection unit chamber 22.

  As shown in FIGS. 19 and 20, the sweeping body 300 is fitted to the shaft portion 101A of the pleated filter body 100 and rotates integrally with the shaft portion 101A. It has three arms 302 extending in the radial direction, and a sweeping member 303 provided at the tip of this arm 302. In FIG. 20, the two sweep members 303 are omitted.

  The sweeping member 303 includes a first sliding contact portion 303 </ b> A that slidably contacts the inner wall surface of the dust receiving portion 86 of the storage case 81 and scrapes dust accumulated in the dust receiving portion 86, and a front wall of the storage case 81. A second slidable contact portion 303B that slidably contacts the portion 84 and an inclined surface (guide inclined surface) 303C that drops dust scraped up by the first slidable contact portion 303A to the discharge opening 84K are formed.

  The sweeping body 300 rotates as the pleated filter body 100 rotates, and this rotation causes the sweeping member 303 to move along the inner peripheral surface of the dust receiving portion 86 of the storage case 81 shown in FIG. The inner peripheral surface and the front wall portion 84 are slidably moved. By this sliding movement, the sweeping member 303 pushes up the dust accumulated in the dust receiving portion 86 to the discharge opening 84K.

  When the sweeping member 303 moves to the position of the discharge opening 84K, the sweeping member 303 presses the projection 450A of the closing lid 450 and moves the closing lid 450 forward against the biasing force of the spring 401. Then, the discharge opening 84K is opened.

  When the pleat filter body 100 is rotated and the sweep member 303 is in the position shown in FIG. 16, the microswitch S1 is switched from on to off, that is, the microswitch S1 is large in the cylindrical portion 110 of the pleat filter body 100. The attachment position of the microswitch S1 and the attachment position of the sweep body 300 with respect to the pleated filter body 100 are set so as to switch from the detection of the diameter portion 110B to the detection of the small diameter portion 110A.

  When the sweeping member 303 comes to the position shown in FIG. 16, the discharge opening 84 </ b> K is closed by the closing lid 450.

  Further, when the dust separation unit 400 is mounted in the dust collection unit chamber 22 of the cleaner body 11, the storage case 81 of the dust separation unit 400 is inserted into the front opening 25 </ b> B of the connection air passage portion 25 of the cleaner body 11 via the seal member 27. The rear end face is joined, and the inside of the storage case 81 and the suction opening 24 </ b> A of the electric blower 24 are communicated with each other through the connection air passage portion 25.

FIG. 21 is a block diagram showing the configuration of the control system of this vacuum cleaner. In FIG. 21, reference numeral 200 denotes a control device that controls the electric blower 24 and the motor M based on the operation of the operation switch 13a (see FIG. 1) of the operation unit 13A and the detection signal of the micro switch S1.
[Operation]
Next, operation | movement of the vacuum cleaner comprised as mentioned above is demonstrated.

  First, as shown in FIG. 2, the dust collection unit 50 is mounted in the dust collection unit chamber 22 of the cleaner body 11, and the dust collection hose 12 is connected to the connection port 11 </ b> A of the cleaner body 11 as shown in FIG. 1. At the same time, the suction port 15 is connected to the hand operation tube 13 via the extension tube 14.

  Then, a power plug (not shown) is connected to the outlet. With this connection, the control device 200 drives the motor M to rotate the pleated filter body 100 of the filter unit 80. As the pleated filter body 100 rotates, the sweep body 300 rotates, and the sweep member 303 of the sweep body 300 has its first sliding contact portion 303A slidingly moved on the peripheral surface of the dust receiving portion 86. The dust accumulated in the dust receiving portion 86 is pushed up along the peripheral surface.

  Thus, the sweeping member 303 pushes up the dust along the dust receiving portion 86 to the discharge opening 84K by the rotational movement, so that the push-up can be performed with a simple structure. Further, since the sweeping body 300 is rotated by the rotation of the pleated filter body 100, only one drive source is required, and a dedicated motor for the sweeping body 300 is not necessary.

  Then, when the sweeping member 303 comes to the position of the discharge opening 84K, the second sliding contact portion 303B of the sweeping member 303 presses the projection 450A of the closing lid 450 as shown in FIG. Establish.

  On the other hand, the dust scraped up by the first sliding contact portion 303A of the sweep member 303 is dropped onto the inclined surface 303C via the side surface 303D of the sweep member 303, and the dust is further discharged to the discharge opening 84K by the inclined surface 303C. Dropped and discharged. The dust dropped into the discharge opening 84K is returned into the separation chamber portion 54 from the introduction hole 153B of the dust separation portion 52 via the communication member 403.

  Then, when the sweep member 303 comes to the position shown in FIG. 16 by the rotation of the pleat filter body 100, the microswitch S1 shifts from detection of the large diameter portion 110B of the cylindrical portion 110 of the pleat filter body 100 to detection of the small diameter portion 110A. As a result, the driving of the motor M is stopped. When the sweep member 303 moves to the position shown in FIG. 16, the pressing of the projection 450 </ b> A of the closing lid 450 by the second sliding contact portion 303 </ b> B of the sweeping member 303 is released, and the closing lid 450 is moved by the biasing force of the spring 401. The discharge opening 84K is closed.

  While the motor M is being driven, that is, until the discharge opening 84K is closed by the closing lid 450, the electric blower 24 is not driven even if the switch 13a of the operation portion 13A of the hand operation tube 13 is operated. Thereby, the dust discharged into the separation chamber portion 54 of the dust separation portion 52 is prevented from being sucked from the discharge opening 84K and attached to the pleat filter 104 again.

  When the switch 13a of the operation unit 13A of the hand operation tube 13 is operated, the electric blower 24 is driven. By driving the electric blower 24, air is sucked from the suction opening 24 </ b> A of the electric blower 24, a negative pressure acts in the storage case 81 of the dust collection unit 50 through the connection air passage portion 25, and the suction air passage It acts on the inside of the dust collecting case part 74 and the separation chamber part 54 of the dust separation part 52 via the part 56. Then, the negative pressure acts on the dust collecting hose 12, the extension pipe 14 and the suction port body 15 via the guide air duct tube 57, and dust is sucked together with air from the suction port body 15.

  The sucked dust and air are sucked into the suction connection port 57a of the dust collecting unit 50 through the extension pipe 14 and the dust collecting hose 12. Dust and air sucked into the suction connection port 57a are introduced into the separation chamber portion 54 of the dust separation portion 52 through the guide air duct 57, and rotate counterclockwise in FIG. I will do it.

  Then, due to the rotation in the separation chamber 54, the air is separated from the air by the inertial force acting on the dust, and the air passes through the net filter NF1 (see FIG. 10) of the dust separation means 55 and the net filter NF2 of the opening 154B, Further, the air is sucked into the storage case 81 of the filter portion 80 through the suction air passage portion 56.

  On the other hand, the separated dust is introduced together with a part of air into the communication case portion 72 of the dust collecting portion 70 from the introduction opening 53A formed in the upper portion of the separation chamber portion 54 by inertial force.

  The introduced dust and air are connected to the introduction opening 53A and move in a substantially horizontal direction along the communication path 71 of the communication case portion 72 extending in the substantially horizontal direction. 73 is aspirated.

  The dust that has moved to the entrance of the dust collection chamber 73 falls almost vertically downward and is accumulated in the dust collection chamber 73.

  As a result, even if the amount of dust accumulated in the dust collection case 74 increases and the net filter NF3 is clogged and air is drawn into the dust separation unit 52 of the dust separation unit 400, the dust collection chamber The dust that has fallen into and accumulated in 73 does not flow back into the dust separator 52 and can be reliably accumulated.

  That is, once the dust has fallen into the dust collection chamber 73, it is difficult to move horizontally within the communication case portion 72 that extends in the horizontal direction even if it rises by the air drawn into the dust separation portion 52. Therefore, the dust stays in the dust collecting chamber 73 and does not flow back into the dust separation unit 52.

  Accordingly, it is possible to prevent the dust separated from the air by the dust separation unit 52 of the dust separation unit 400 and accumulated in the dust collection case 74 from flowing backward.

  The air sucked into the dust collection chamber 73 is sucked into the suction air passage portion 56 through the net filter NF3 and the opening 170A below the cover plate 170, and further sucked into the storage case 81 of the filter portion 80. Go.

  At this time, fine dust on the air passing through the net filter NF3 is collected by the net filter NF3 and adheres to the net filter NF3.

  Here, the net filter NF3 is covered with a cover plate 170 at a position separated by a predetermined distance, and an opening 170A is formed in the lower portion of the cover plate 170, so that a large amount of air is generated in the lower portion of the net filter NF3. Flowing. For this reason, dust adheres from the lower side of the net filter NF3, resulting in clogging. Thereby, more dust can be accumulated in order from the lower side of the dust collection chamber 73.

  The air sucked into the storage case 81 passes through the pleated filter 104 of the pleated filter body 100 and is sucked into the connection air passage portion 25 of the cleaner body 11 and further sucked into the suction opening 24A of the electric blower 24.

  Air sucked into the suction opening 24A of the electric blower 24 passes through the electric blower 24 and is exhausted from the exhaust port 20H of the cleaner body 11 shown in FIG.

  When the cleaning is completed, the operation of the electric blower 24 is stopped by operating the operation switch 13a of the operation unit 13A. When driving of the electric blower 24 is stopped, the control device 200 shown in FIG. The drive gear Ga is rotated by driving the motor M, and the pleated filter body 100 is rotated.

  Due to the rotation of the pleated filter body 100, the projection 88 of the front wall portion 84 of the storage case 81 hits the protruding portion 104Ab of the peak portion 104A of the pleated filter 104, and vibration is applied to the pleated filter 104 and adheres to the pleated filter 104. Dust is shaken off. This dust accumulates in the dust receiving part 86 of the storage case 81.

  Since the protrusion 88 is provided below the center of rotation of the pleated filter body 100, a large vibration is applied to the pleated filter 104 in the lower portion of the pleated filter body 100. For this reason, dust is shaken off from the lower pleat filter 104 and falls to the dust receiving portion 86 as it is, and it does not adhere to the pleat filter 104 again during the fall, and therefore it is efficient. Dust can be dropped.

  On the other hand, the sweeping body 300 rotates together with the pleated filter body 100, and the first sliding contact portion 303A of the sweeping member 303 of the sweeping body 300 slides on the inner peripheral surface of the dust receiving portion 86 of the storage case 81. I will do it. By this sliding movement, the dust accumulated in the dust receiving portion 86 is pushed up along the peripheral surface of the dust receiving portion 86 while being scraped up, and the sweep member 303 is moved to the position of the discharge opening 84K. Then, the discharge opening 84K is opened as described above (see FIG. 22), and the pushed up dust is discharged to the discharge opening 84K, and inside the separation chamber portion 54 of the dust separation portion 52 via the communication member 403. Returned to

  Then, for example, when the pleated filter body 100 rotates once and the sweeping member 303 comes to the position of FIG. 16, the microswitch S1 detects the large diameter portion 110B of the cylindrical portion 110 of the pleated filter body 100 from the detection of the small diameter portion 110A. The operation is switched to detection, whereby the driving of the motor M is stopped, and the rotation of the pleated filter body 100 is stopped. As described above, the discharge opening 84K is closed by the closing lid 450.

  Further, when the power plug is pulled out from the outlet when the sweep member 303 of the sweeper 300 opens the discharge opening 84K, the driving of the motor M is stopped and the discharge opening 84K remains opened.

  However, as described above, when the power supply plug is connected to the outlet, the electric vacuum cleaner 10 drives the motor M to rotate the pleated filter body 100, and the sweeping member 303 comes to the position shown in FIG. The drive of the motor M is stopped and the sweep member 303 is stopped at the position shown in FIG.

  Therefore, the discharge opening 84K is closed by the closing lid 450, and the electric blower 24 can be driven thereafter, so that the dust returned to the separation chamber part 54 of the dust separation part 52 is sucked from the discharge opening 84K. Is prevented.

  Further, since the dust accumulated in the dust receiving portion 86 is returned to the separation chamber portion 54 of the dust separation portion 52 from the discharge opening 84K through the communication member 403 by the rotational movement of the sweep member 303, the pleat filter The dust collecting unit 410 may not be provided with a dedicated dust collecting unit for 104.

  When clogging occurs in the pleat filter 104 due to long-term use, the dust separation unit 400 is removed from the cleaner body 11 and the pleat filter 104 is cleaned.

  The dust separation unit 400 is first removed after the dust collecting unit 410 is removed from the main body case 20, but the drive gear Ga is set to be lower than the rotation center position of the gear 107 of the pleated filter body 100. Thus, the gear 107 of the pleated filter body 100 is disengaged from the drive gear Ga simply by lifting the dust separation unit 400 upward without the drive gear Ga getting in the way. For this reason, the dust separation unit 400 can be easily removed from the dust collection unit chamber 22 of the cleaner body 11.

  Further, when the dust separation unit 400 is mounted, if the dust separation unit 400 is inserted from above the dust collection unit chamber 22, the drive gear Ga does not get in the way, and the gear 107 of the pleated filter body 100 is driven. The dust separation unit 400 can be easily mounted in the dust collection unit chamber 22 by meshing with the gear Ga.

  Although one embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to the above-described embodiment. Design changes and the like within the scope not departing from the gist of the present invention are included in the present invention.

  For example, in the above-described embodiment, the dust discharged from the discharge opening 84K is returned to the separation chamber portion 54 of the dust separation portion 52. However, the present invention is not limited to this, and for example, a guide air duct that is upstream of the dust separation portion 52 You may return to 57.

  In the above-described embodiment, the dust attached to the pleated filter 104 is dropped by rotating the pleated filter body 100. However, the present invention is not limited to this, and vibration is applied to the pleated filter 104 without rotating the pleated filter body 100. It is also possible to drop dust.

  In the above embodiment, the canister type vacuum cleaner has been described. However, the present invention can also be applied to an upright type vacuum cleaner or a vacuum cleaner in which a dust separation unit is attached to a hand control tube.

It is the perspective view which showed the external appearance of the electric vacuum cleaner which concerns on this invention. It is the longitudinal cross-sectional view which showed the structure of the cleaner body shown in FIG. It is the perspective view which showed the cleaner body which removed the dust collection unit. It is a longitudinal cross-sectional perspective view of the cleaner body shown in FIG. It is a longitudinal cross-sectional view of the cleaner body which removed the dust collection unit. It is the perspective view which showed the external appearance of the dust collection unit. It is a cross-sectional view of the dust collection unit shown in FIG. It is the perspective view seen from the other direction of the dust collection unit shown in FIG. It is the perspective view which showed the external appearance of the dust separation unit. It is the conceptual diagram which showed the front wall part of the storage case, the dust separation part, and the duct. It is the perspective view which showed the external appearance of the dust collection unit. It is the perspective view which looked at the dust collection unit of FIG. 11 from the other direction. It is the perspective view which showed the dust collection part unit which removed the cover body. It is the perspective view which showed the cover body. It is a top view of the dust collection unit of FIG. It is explanatory drawing which showed the storage case and the sweeping body. It is the side view which showed the pleated filter body. It is explanatory drawing which showed the shape of the cylindrical part of the pleat filter body shown in FIG. It is the front view which showed the sweeping body. It is a perspective view of the sweeping body shown in FIG. It is the block diagram which showed the structure of the control system of a vacuum cleaner. It is explanatory drawing which showed the state by which the discharge opening was opened by the sweep member. It is the perspective view which showed the dust separation part.

Explanation of symbols

410 Dust collection container (dust collection unit)
70 Dust collector 72 Communication air passage (Communication case)
74 Collection room (dust collection case)
400 Dust separation means (dust separation unit)
53A outlet (introduction opening)
24 Electric blower

Claims (2)

Dust collecting the dust-containing air sucked by the negative pressure of the electric blower are separated by the dust separation means for separating the air and dust to the dust collecting the discharged dust from top to form the outlet of the dust separation unit A dust collecting container having a section,
The dust collection unit includes a communication air passage opening formed in the lower surface of one end portion connected to the discharge port, extending or Tsuhobo horizontally,
A collection chamber extending substantially vertically downward from the other end of the communication air passage,
The collection chamber extends in the vertical direction and has an exhaust opening that is closed by a dust collecting filter on one side facing the communication air passage, and the communication air passage communicates above the exhaust air opening. A dust container characterized by that. A dust separation means for separating the air and dust sucked by the negative pressure of the electric blower and discharging the separated dust from a discharge port formed in the upper portion, and the dust collecting container according to claim 1. Characterized vacuum cleaner.

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