JP2011010742A - Dust collector and vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust collection cup which restrains the suction power from lowering while securing the suction durability and the dust collection amount.SOLUTION: A filter 82, which is arranged on a slope 86 with at a prescribed angle of 45° or lower with respect to the opening direction of an air inlet 71 forming a channel having a plane component, is arranged in a case body 51 so that at least a part thereof resides in the projection position A of the shape of the air inlet 71. The filter 82 hardly adsorbs dust and secures the suction durability. The filter 82 is not required to be arranged entirely close to the air inlet 71, so that the dust collection amount can be secured. Since the area of the filter can be increased, the suction power can be restrained from lowering.

Description

  The present invention relates to a dust collector in which a filter is disposed in a case body provided with an intake port and an exhaust port, and a vacuum cleaner including the dust collector.

  Conventionally, a dust collection cup as a dust collector used in a vacuum cleaner has an intake port and an exhaust port formed in a case body formed of a synthetic resin or the like, and an exhaust side filter is disposed to cover the exhaust port. In addition, a filter is disposed in the air passage partitioned inside the case body so as to communicate from the intake port to the exhaust port. In such a filter, dust adheres to the filter over time, resulting in clogging, and the suction force of the electric blower is reduced. Therefore, even in the case of such clogging, an air passage that bypasses a part of the intake air Is formed, and a filter is separately disposed in the air passage to suppress a reduction in suction force and maintain the suction force of the dust collection cup (see, for example, Patent Document 1). ).

  However, with such a configuration, there is a problem that the air passage configuration in the case body is complicated and the suction work rate may be reduced.

  Therefore, the position of the filter disposed between the intake port and the exhaust port is brought closer to the intake port, and a rectifier that rectifies the intake air to the filter is projected from the filter side toward the intake port, thereby There is known a configuration in which a common filter has both a dust collecting function and a sustaining power maintaining function by separating the collected dust from the filter at any time by air intake from an air inlet (for example, a patent See references 2-4.) In this configuration, since the air path can be simplified, a reduction in the suction power can be suppressed.

JP 2008-161471 A (page 3-7, FIG. 1-2) Japanese Patent Laying-Open No. 2007-313180 (page 4-5, FIG. 1) Japanese Patent Laying-Open No. 2008-22932 (page 4-6, FIG. 2) Japanese Patent Laying-Open No. 2008-23217 (page 5-6, FIG. 6)

  However, the dust collector described above has a problem that the amount of dust that can be accommodated in the case body is reduced because it is not easy to take a distance between the filter and the air inlet.

  This invention is made in view of such a point, and provides the dust collector which suppressed the fall of suction work rate, ensuring the sustainability of suction and the amount of dust collection, and a vacuum cleaner provided with the same With the goal.

  The present invention is located on the inner side of a case body provided with an air inlet that forms a flow path having a horizontal component and an air outlet that is formed at a position facing the air inlet, and is 45 with respect to the opening direction of the air inlet. The filter is disposed on an inclined surface inclined at a predetermined angle equal to or less than 0 °, and at least a part of the filter is located at the projection position of the shape of the intake port.

  According to the present invention, the filter is disposed on an inclined surface that is inclined at a predetermined angle of 45 ° or less with respect to the opening direction of the intake port forming the flow path having a horizontal component, and at least a part thereof is projected at the projection position of the shape of the intake port. By placing it in the case body so that it is located, it is difficult for dust to adhere to the filter and it is possible to ensure the sustainability of suction, and it is not necessary to place the entire filter close to the intake port, so it is possible to secure the amount of dust collection, and Since the filter area can be increased, the reduction in the suction power can be suppressed.

It is a longitudinal cross-sectional view which shows a part of vacuum cleaner main body of the vacuum cleaner provided with the dust collector of the 1st Embodiment of this invention. It is a longitudinal cross-sectional view which shows the time of disposal of the dust of a dust collector same as the above. It is a perspective view which shows a dust collector same as the above. It is a perspective view which shows a vacuum cleaner same as the above. It is a longitudinal cross-sectional view which shows the dust collector of the 2nd Embodiment of this invention. It is a top view which shows typically a part of dust collector same as the above. It is a longitudinal cross-sectional view which shows the time of disposal of the dust of the dust collector of the 3rd Embodiment of this invention.

  Hereinafter, the configuration of the first embodiment of the present invention will be described with reference to FIGS.

  In FIG. 4, reference numeral 11 denotes a so-called canister-type vacuum cleaner. The vacuum cleaner 11 includes a pipe part 12 and a vacuum cleaner body 13 to which the pipe part 12 is detachably connected.

  The pipe part 12 is provided on the distal end side of the hose body 16, the connecting pipe part 15 connected to the cleaner body 13, the flexible hose body 16 communicating with the distal end side of the connecting pipe part 15. The hand operating section 17, the extension pipe 18 detachably connected to the distal end side of the hand operating section 17, and the floor brush 19 as a suction port body detachably connected to the distal end side of the extension pipe 18. It has.

  On the hand operating portion 17, a gripping portion 21 protrudes toward the hose body 16, and the gripping portion 21 is provided with a plurality of setting buttons 22 for operation.

  Further, as shown in FIG. 1, the vacuum cleaner main body 13 includes a main body case 25, and an electric blower chamber 28 that houses an electric blower 27 on the rear side of the partition wall 26 formed inside the main body case 25, and A cord reel chamber (not shown) that houses a cord reel around which a power cord (not shown) is wound is partitioned, and the electric blower 27 is connected to the front side of the partition wall 26 through a communication port 31 provided in the partition wall 26. A main body dust collection chamber 35 communicating with the suction side is defined, and a dust collection cup 36 as a dust collector is detachably provided in the main body dust collection chamber 35.

  The main body case 25 is formed of, for example, a rigid synthetic resin, and the upper case 39 that covers the electric blower chamber 28 and the cord reel chamber, which are the upper rear portion of the lower case 38, and the lower case 38 that is open on the upper side. A main body cover 40 that is pivotally supported so as to be pivotable in the vertical direction with respect to the upper case 39 or the lower case 38 and that can open and close the main body dust collecting chamber 35, and a rear panel 41 that covers the rear portions of the electric blower chamber 28 and the cord reel chamber. And.

  On the front side of the lower case 38, a main body suction port 43 that communicates with the main body dust collecting chamber 35 and that can be connected to the connection pipe portion 15 is formed. Further, on both sides of the lower case 38, large-diameter traveling wheels 44 (FIG. 4) that allow the cleaner body 13 to travel on the floor surface to be cleaned are rotatably attached. A swivel wheel unit 45 is attached to the lower portion of the lower case 38 so as to turn freely.

  Further, a handle body 47 for carrying the cleaner body 13 is attached to the upper case 39. The handle body 47 is also configured to function as a button for winding the power cord around the cord reel.

  The rear panel 41 is formed with a plurality of main body exhaust holes 49 in the vertical direction and the left-right direction that communicate the electric blower chamber 28 and the cord reel chamber with the outside of the main body case 25 (the vacuum cleaner main body 13).

  As shown in FIGS. 1 to 3, the dust collecting cup 36 includes a case body 51 formed of, for example, a synthetic resin having rigidity, and an exhaust-side filter that is detachably disposed at the rear portion of the case body 51. A filter body 52, a lid body 53 pivotally supported at the lower part of the case body 51, and a handle 54 formed at the upper part of the case body 51.

  The case body 51 includes a dust body 56 that substantially stores most of the sucked dust (mainly coarse dust) and a case body 61 that defines an air passage 57 through which intake air passes, and the case body 61 A filter body attaching portion 62 for attaching and detaching the filter body 52 continuously to the rear portion which is the downstream side of the housing, and an expanding portion 63 continuing to the lower portion of the case main body portion 61 are integrally provided.

  The case main body 61 has a front surface portion 65 having a rectangular shape in front view, which is an upstream side surface portion, an upper surface portion 66 that continues from the upper part of the front surface portion 65 to the rear, and a front surface portion 65 and both sides of the upper surface portion 66. Side surface portions 67 and 67, and a closing portion 68 which is a lower portion of the upper surface portion 66 and is continuous between the side surface portions 67 and 67. In addition, a filter unit 69 is rotatably mounted inside the case main body 61.

  In the front surface portion 65, a circular intake port 71 having an opening direction (axial direction) along the front-rear direction is formed horizontally at a substantially central portion in the vertical direction. Therefore, the intake port 71 forms a flow path having a horizontal component. In the present embodiment, since the opening direction of the intake port 71 is substantially the same between the outer side and the inner side of the case body 51, the opening direction of the intake port 71 on the inner side of the case body 51 and the case body 51 will be described below. The opening direction of the intake port 71 on the outside is not distinguished, and both are referred to as the opening direction of the intake port 71.

  In addition, the front portion of the front surface portion 65 defines an accommodating portion that accommodates a locking body drive mechanism (not shown) for operating the locking bodies 72, 72 for locking the lid 53 to the case body 51. An accommodating section partition body 73 is attached. Further, the lower end portion of the front surface portion 65 is continuous with the upper portion of the expanding portion 63.

  The container section 73 is formed in an arch shape from the upper side of the intake port 71 to the lower parts on both sides, and is fixed to the front surface part 65 by a plurality of screws (not shown). In addition, a cylindrical air guide portion 76 having an axial direction along the opening direction of the air intake port 71 is formed in the central portion of the accommodating portion partitioning body 73, and the air guide portion 76 is upstream of the air intake port 71. Are arranged coaxially. The air guide portion 76 has a dust collecting portion at the front end with respect to the rear end portion of the cylindrical seal member 77 having flexibility (elasticity) attached to the rear portion on the downstream side of the main body suction port 43. By being in pressure contact with the cup 36 attached to the main body dust collection chamber 35, the intake port 71 and the main body suction port 43 are connected in an airtight manner.

  Each locking body 72 is pivotable in the front-rear direction with the upper end portion pivotally supported at the lower portions on both sides of the accommodating section partitioning body 73. Further, the lower end portion of each locking body 72 protrudes below the expanding portion 63, and a claw portion (not shown) for locking the lid 53 is formed at the rear portion of the lower end portion. . Further, each locking body 72 is biased so that the lower end side is rotated rearward by, for example, biasing means such as a spring forming a part of the locking body driving mechanism.

  Further, the upper surface portion 66 is formed to be curved in an arc shape upward, and is inclined upward from the front side (upstream side) to the rear side (downstream side).

  Each side surface portion 67 is formed so as to gradually expand from the upper side to the lower side with respect to the front surface portion 65. Further, the lower end portion of each side surface portion 67 is continuous with the upper portion of the expanding portion 63.

  Further, the closing part 68 is formed in a wall shape, and a dust container part 56 is defined between the closing part 68 and the filter part 69.

  The filter unit 69 is a filter frame portion 81 formed in a plate shape with a synthetic resin having rigidity and the like, and a filter as a mesh-like (one) primary filter attached to the filter frame portion 81. And a planar filter 82. The filter unit 69 is located on the lower side, which is the lid 53 side, with respect to the blocking unit 68.

  The filter frame portion 81 is integrally formed with a front (upstream side) filter frame portion 84 positioned on the front side and a rear (downstream side) filter frame portion 85 positioned on the rear side, and is formed in a bent shape. An inclined surface 86 to which is attached is formed. Further, the outer peripheral edge of the filter frame 81 is in close contact with the inner surface of the case main body 61 without a gap. The filter frame portion 81 is disposed in an inclined shape upward from the front side to the rear side.

  The front filter frame portion 84 is formed in a lattice shape having a plurality of front (upstream side) ventilation openings 84a as ventilation openings for configuring the air passage 57 that communicates the upstream side and the downstream side of the filter 82, and is a flat plate. It has become a shape. Further, the lower end portion, which is the front end portion of the front filter frame portion 84, is in contact with the inner surface of the expanding portion 63 located below the front surface portion 65 of the case main body portion 61 below the intake port 71. Further, the front filter frame portion 84 is inclined at a predetermined angle of 45 ° or less in a side view with respect to a horizontal direction that is an opening direction on the inner surface side of the case body portion 61 of the air inlet 71. The front filter frame portion 84 is located within the projection position A of the shape of the intake port 71 from the position above the front vent opening 84a to the upper end portion that is a continuous portion with the rear filter frame portion 85. Yes. The lower end portion of the front filter frame portion 84 abuts on the upper portion of the front end side of the lid 53 and is supported by the lid 53.

  The rear filter frame 85 is formed in a lattice shape having a plurality of rear (downstream) ventilation openings 85a as ventilation openings for configuring the air passage 57 that communicates the upstream side and the downstream side of the filter 82. It is flat. Further, the rear filter frame portion 85 is formed to be bent upward with respect to the front filter frame portion 84. Further, the upper end portion, which is the rear end portion of the rear filter frame portion 85, is extended to the upper side outside the projection position A of the shape of the intake port 71, and both end portions are provided on the side surface portions 67, 67 of the case body portion 61 Is a pivot shaft 85b that is pivotally supported. Therefore, the filter portion 69 can be rotated in the vertical direction with respect to the case main body portion 61. Further, the rear filter frame portion 85 has a predetermined angle of 45 ° or less in a side view with respect to the horizontal direction that is the opening direction on the inner surface side of the case main body 61 of the intake port 71, and the front filter frame portion 84. It is inclined at a larger angle than. Therefore, the inclined surface 86 as a whole intersects the horizontal direction that is the opening direction on the inner surface side of the case main body 61 of the air inlet 71 at a predetermined angle of 45 ° or less in a side view. The state where the inclined surface 86 intersects the opening direction of the air inlet 71 on the inner surface side of the case main body 61 at a predetermined angle of 45 ° or less in a side view is, for example, a filter frame constituting the inclined surface 86 When the portion 81 or the filter 82 is curved downward in an arc shape, the plane including the front end side and the rear end side of the filter frame portion 81 or the tangent line (tangent plane) of the curved portion is the case of the intake port 71 It also includes a state of crossing at a predetermined angle of 45 ° or less in a side view with respect to the opening direction on the inner surface side of the main body 61.

  The filter 82 is disposed with the front vent opening 84a and the rear vent opening 85a closed. In other words, at least a part of the filter 82 is disposed within the projection position A of the shape of the intake port 71, and the entire outer edge is positioned outside the projection position A of the intake port 71.

  The filter body attaching portion 62 is formed in a quadrangular frame shape, and is widened in a step shape at the rear surface of the upper surface portion 66, the side surface portions 67 and 67, and the expanded portion 63. That is, the filter body attaching portion 62 divides an exhaust port 93 communicating with the downstream side of the intake port 71 through the inside of the case main body 61 in a square shape at the rear portion of the case body 51. The exhaust port 93 is formed at a position facing the intake port 71.

  Further, the expanding portion 63 is formed in a frame shape and is expanded in a step shape below the front surface portion 65 and the side surface portions 67 and 67. That is, the expanding portion 63 partitions a dust discharge port 95 for dust disposal that communicates with the inside of the case body 61 at the lower portion of the case body 51. Further, a wall portion 63a along the left-right width direction is formed at a position facing the front side of the filter body mounting portion 62 at the rear portion of the expanded portion 63, and the filter body mounting portion is formed on the wall portion 63a. An opening 63b that connects the 62 side and the inside of the expanding portion 63 is formed. Further, in the expanding part 63, the rear side projects downward from the front side. Accordingly, the dust discharge port 95 has an opening direction in a direction inclined with respect to the vertical vertical direction orthogonal to the opening direction of the intake port 71, and opens toward the front lower side. Therefore, the dust discharge port 95 can have a larger opening area than the case where the dust discharge port 95 is opened in the vertical vertical direction.

  Further, the filter body 52 can be attached to the rear part of the filter body attaching portion 62 so as to block the entire exhaust port 93. That is, the filter body 52 is located on the downstream side of the filter 82 and communicates with the intake port 71 side via the air passage 57. The filter body 52 includes a rectangular frame-shaped filter frame 97, a pleated filter 98 that is a surface dust collecting filter as a main (secondary) filter held by the filter frame 97, and dust collected by the pleated filter 98. And a dust removing means (not shown) for removing.

  The filter frame 97 is configured to airtightly close a gap with the edge of the exhaust port 93 in a state where the filter body 52 is attached to the exhaust port 93.

  The pleated filter 98 has a pleated shape in which a front protruding portion protruding to the front side and a rear protruding portion protruding to the rear side are alternately continued in the left-right width direction.

  The dust removing means is located, for example, on the downstream side of the pleated filter 98, and is arranged so as to be movable in the left-right width direction with respect to the pleated filter 98. By this movement, the tip of the rear side protruding portion of the pleated filter 98 is sequentially The pleated filter 98 is repelled by getting over and vibration is applied to the pleated filter 98, and dust collected on the pleated filter 98 is removed. The dust removing means may be configured to be manually operated, or may be configured to be automatically operated at a predetermined timing such as when the electric blower 27 is stopped or immediately before the operation of the electric blower 27 is started.

  The lid 53 is formed in a flat dish shape with the upper side open, and a rotating shaft 53a projects from the rear part. The pivot shaft 53a is pivotally supported at the lower portion of the filter body mounting portion 62 so as to be pivotable. For this reason, the lid 53 can open and close the dust discharge port 95 by rotating. In addition, the upper peripheral portion of the lid 53 is in contact with the lower end of the expanding portion 63 in a state where the lid 53 is closed, and is flexible (elastic) for airtightly closing the dust discharge port 95. A dust collecting seal member 101 having the above is attached. Furthermore, engaged portions 102 and 102 to which the claw portions on the lower ends of the locking bodies 72 and 72 are engaged are formed at the front end portion of the lid 53, respectively.

  Further, the handle 54 is formed along the front-rear direction of the case body 51, and a part of the locking body drive mechanism for operating the locking bodies 72, 72 is disposed inside. An opening 105 for exposing the operation button 104 for operating the locking body drive mechanism to the outside is formed at a position closer to the rear side at the upper portion of the handle 54.

  The air passage 57 is an air passage that flows from the intake port 71 to the exhaust port 93 through the ventilation openings 84a and 85a (filter 82) and the filter body 52 (pleat filter 98).

  The electric blower 27 is disposed along the front-rear direction in the electric blower chamber 28 with at least a portion covered by a substantially cylindrical electric blower cover 107 formed of, for example, a synthetic resin. Furthermore, the electric blower 27 is driven in the operation mode set by the setting button 22 (FIG. 4) by a main body control unit (not shown) accommodated in the main body case 25 (the vacuum cleaner main body 13). Be controlled.

  In addition, the front part of the electric blower cover 107 has a substantially cylindrical shape gradually reduced in diameter from the front side on the upstream side to the rear side on the downstream side in the rear part on the downstream side of the communication port 31 of the partition wall 26. A cover suction port 109 into which the rear end of the inducer 108, which is a rectifier, is inserted is formed. The downstream end of the inducer 108 inserted into the cover suction port 109 is connected to the suction of the electric blower 27. Airtight connected to the side. A cover exhaust port 110 for discharging the exhaust from the electric blower 27 is formed in the lower part on the rear side of the electric blower cover 107.

  The electric blower cover 107 may be divided into a plurality of parts, for example, up and down, front and rear, or the electric blower 27 may be elastically suspended inside via a suspension means (not shown). Further, the electric blower cover 107 itself may be elastically supported by the lower case 38 of the main body case 25 or the like.

  Next, the operation of the first embodiment will be described.

  First, as shown in FIG. 1, a dust collection cup 36 is attached in the main body dust collection chamber 35 of the vacuum cleaner main body 13, and as shown in FIG. 4, the pipe portion 12 with respect to the main body suction port 43 of the vacuum cleaner main body 13. In the state where the connecting pipe part 15 is connected and the hose body 16, the extension pipe 18 and the floor brush 19 are sequentially connected to each other, the floor brush 19 is placed on the floor surface, the grip part 21 is gripped, By operating the setting button 22, the main body control unit operates the electric blower 27 in a desired operation mode. Then, the operator causes the floor brush 19 to travel back and forth on the floor surface via the extension pipe 18 by the grip portion 21.

  The negative pressure generated by driving the electric blower 27 acts on the floor brush 19 via the inducer 108, the communication port 31, the dust collection cup 36, the main body suction port 43, the hose body 16 and the extension pipe 18, and is on the floor surface. Inhale dust with air.

  The sucked air becomes intake air, and is collected together with dust from the floor brush 19 through the extension pipe 18, the hose body 16 and the main body suction port 43 through the suction port 71 of the dust collection cup 36 shown in FIG. It is sucked in.

  The intake air is blown horizontally to the filter unit 69 along the opening direction of the intake port 71 as indicated by an arrow W in FIG. At this time, since the filter frame portion 81 is inclined so as to intersect at a predetermined angle of 45 ° or less with respect to the opening direction of the intake port 71, the intake air flows along the filter portion 69 (filter 82). The component (vector) flowing on the surface of the filter unit 69 (filter 82) is larger than the component (vector) orthogonal to the filter 82, that is, the component passing through the filter 82. For this reason, the dust collected by the filter 82 when the intake air passes through the filter 82 is almost peeled off from the filter 82 by the force of the intake air and blown away in a direction away from the intake port 71. Along with the dust, the intake air is rectified along the filter portion 69 (inclined surface 86), flows in a swiveling direction toward the closing portion 68, and is stored in the dust storage portion 56. Therefore, most of the dust (coarse dust D such as cotton dust) sucked together with the intake air is accumulated from the rear end of the filter unit 69 to the closed portion 68 side, and the filter 82 of the filter unit 69 is dusted by the intake air. It is peeled off and blown away, and the clogging is kept in a suppressed state. That is, since the filter 82 is maintained in a state where clogging is suppressed, the suction force of the electric blower 27 is maintained.

  When the intake air that has passed through the filter 82 passes through the pleat filter 98, fine dust (fine dust) that cannot be collected by the filter 82 is collected on the surface by the pleat filter 98.

  Thereafter, the intake air is exhausted from the exhaust port 93 to the downstream side (outside) of the dust collecting cup 36, and is sucked into the suction side of the electric blower 27 through the communication port 31 and the inducer 108 shown in FIG. After passing through this electric blower 27 while cooling, it becomes exhaust air, exhausted from the cover exhaust port 110 of the electric blower cover 107, and then from the electric blower chamber 28 and the cord reel chamber through the main body exhaust hole 49 13 (external body case 25) is exhausted outside.

  When the cleaning is completed, the operator operates the setting button 22 shown in FIG. 4 to stop the electric blower 27.

  At this time, the coarse dust D in the dust collecting cup 36 falls to the filter unit 69 side by its own weight because the intake air does not act.

  When a certain amount of coarse dust accumulates in the dust collection cup 36, the operator opens the body cover 40 of the body case 25, removes the dust collection cup 36 from the body dust collection chamber 35, and holds the handle 54. Then carry the dust collection cup 36 onto a waste disposal such as a trash can. Then, when the operator operates the operation button 104, the locking bodies 72, 72 are disengaged from the engaged portions 102, 102, and the front end side of the lid body 53 is moved downward by its own weight around the rotation shaft 53a. Rotates and the dust outlet 95 opens.

  At this time, as shown in FIG. 2, the filter unit 69 supported from the lower side by the lid 53 loses support from the lower side when the lid 53 is opened downward, and the rotating shaft 85b is caused by its own weight. The front end side pivots downward about the center. For this reason, the coarse dust D stored in the dust container 56 on the upper side of the filter unit 69 is dropped and discharged from the dust discharge port 95 to the waste unit outside the dust collecting cup 36 by its own weight. At this time, it is preferable that the filter 82 and the pleated filter 98 of the filter body 52 also clean the collected dust.

  After the dust is discarded, when the operator rotates the lid 53 upward, the filter unit 69 contacts the lid 53 and pivots upward about the pivot shaft 85b. When the dust discharge port 95 is completely closed by 53, that is, when the locking bodies 72 and 72 are engaged with the engaged portions 102 and 102 of the lid 53, the front end of the filter frame 81 is the intake port. The lower part 71 is held in contact with the inner surface of the expanding part 63 located below the front surface part 65 of the case main body part 61. The dust collection cup 36 can be used repeatedly by discarding the dust in this way.

  As described above, in the first embodiment, the filter 82 is disposed on the inclined surface 86 inclined at a predetermined angle of 45 ° or less with respect to the opening direction of the intake port 71 forming the flow path having a horizontal component. By arranging in the case body 51 so that at least a part thereof is located at the projection position A of the shape of the mouth 71, the filter 82 of the intake air flowing into the case body 51 along the opening direction of the air inlet 71 is provided. The component flowing on the upstream surface is larger than the component orthogonal to the filter 82 (the component passing through the filter 82), and the intake air flows vigorously along the upstream surface of the filter 82, and dust adhering to the filter 82 is removed. Blow away. For this reason, it becomes difficult for dust to adhere to the filter 82, so that the sustainability of suction can be ensured.

  In addition, since it is not necessary to place the entire filter 82 close to the air inlet 71, the volume of the dust container 56 does not decrease, the dust collection amount can be secured, and the filter area can be increased. Can be suppressed.

  In particular, since the filter 82 is inclined at a predetermined angle of 45 ° or less with respect to the opening direction of the intake port 71, the projection surface of the intake air sucked into the case body 51 from the intake port 71 is the intake port. It becomes √2 times or more of the case of being arranged along the direction orthogonal to the opening direction of 71, the filter area can be increased efficiently, and the adhesion of dust to the filter 82 can be effectively suppressed.

  Further, by bringing the filter frame portion 81 constituting the inclined surface 86 into contact with the inner surface of the case body 51 on the intake port 71 side, all of the intake air flowing into the case body 51 from the intake port 71 can be removed without waste. Since the dust can be guided to the upstream surface and can be effectively blown off from the filter 82, the dust is less likely to adhere to the filter 82.

  Furthermore, by extending the downstream side of the filter 82 of the inclined surface 86 (filter frame portion 81) to the downstream side of the projection position A of the shape of the intake port 71, in the state where the electric blower 27 is driven, the intake air The dust blown off from the upstream surface of the filter 82 by the wind can be held at the position on the closed portion 68 side from the inclined surface 86 on the downstream side of the filter 82 where the filter 82 is not located. Blocking the filter 82 can be suppressed.

  The filter 82 is positioned on the lid 53 side and pivotally supported on the case body 51. With the dust discharge port 95 opened by the lid 53, the filter 82 moves the dust to the dust discharge port 95 side. By rotating so as to move, the filter 82 rotates only by opening the lid 53, and the coarse dust D in the dust container 56 is discharged from the dust outlet 95, and the coarse dust in the dust container 56 is discharged. D can be easily removed.

  Further, the entire outer edge portion of the filter 82 is located outside the projection position A of the intake port 71. In other words, the filter 82 is formed to have a size that covers the entire area of the projection position A of the intake port 71. Therefore, the inclined surface 86 does not block the downstream side of the intake port 71, and pressure loss in the air path 57 in the case body 51 can be suppressed.

  Next, a second embodiment will be described with reference to FIGS. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the second embodiment, partition ribs 113 are integrally formed on the filter frame portion 81 of the filter portion 69 in the first embodiment.

  That is, as shown in FIG. 6, these partition ribs 113, 113 are arranged on both sides of the projection position A of the intake port 71 at a position facing the intake port 71 of the filter 82, and in the air passage 57. A flow path 114 having a width dimension equal to or greater than the projection position A is defined. Further, the partition ribs 113 are formed in a substantially right triangle shape in a side view, and the upper side is substantially horizontal. For this reason, the partition ribs 113 and 113 are formed so that the protruding amount gradually decreases from the front side to the rear side with respect to the inclined surface 86. Further, the partition ribs 113 are arranged linearly in the front-rear direction from both sides of the front end of the filter 82 to both sides of the rear end.

  When the electric blower 27 is driven at the time of cleaning, the negative pressure generated by the driving causes air containing dust to flow from the intake port 71 into the case body 51 (dust dust) as shown in FIGS. Into the housing 56) (arrow W).

  This inflowing intake air is rectified to the filter 82 along the partition ribs 113, 113, and the dust adhering to the filter 82 is surely peeled off and blown away to keep the filter 82 in a state where clogging is suppressed.

  Thus, according to the second embodiment, the flow path having a width dimension equal to or larger than the projection position A of the shape of the intake port 71 on the inner surface side of the case body 51 at a position facing the intake port 71 of the filter 82. By forming the partition ribs 113 and 113 that partition 114, the intake air is reliably guided to the filter 82 through the flow path 114, and the dust adhering to the filter 82 is blown off more effectively by the intake air. Can do.

  Next, a third embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to said each embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the third embodiment, the filter unit 69 of the first embodiment is integrally disposed with the lid 53.

  That is, the filter unit 69 closes the upper part of the lid 53 and is fixed to the lid 53 so as to rotate integrally with the lid 53.

  Therefore, when the dust collected in the dust collection cup 36 is discarded after the cleaning is completed, the operator grasps the handle 54 and carries the dust collection cup 36 onto a waste bin or other disposal unit. By operating the button 104, the locking bodies 72, 72 are disengaged from the engaged parts 102, 102, and the front end side of the lid 53 and the filter part 69 is rotated downward by its own weight about the rotation shaft 53a. Then, the dust discharge port 95 is opened. As a result, the coarse dust D stored in the dust container 56 on the upper side of the filter unit 69 is dropped and discharged from the dust discharge port 95 to the waste unit outside the dust collection cup 36 by its own weight.

  In this way, by integrally attaching the filter unit 69 (filter 82) to the lid 53, the dust contained in the dust collection cup 36 can be easily removed simply by opening the lid 53.

  The third embodiment may be combined with the second embodiment.

  In each of the above embodiments, the front end (lower end) side of the filter 82 is not in contact with the front surface portion 65 as long as it is located outside (lower side) the lower end of the projection position A of the intake port 71. May be.

  Furthermore, the closing part 68 may be configured to include a dust collection filter that is a filtration filter that allows intake air to pass therethrough and collects dust. In this case, the filter area of the dust collection cup 36 can be further increased, and the role of the suction suction filter 82 can be shared, so that dust can be collected more efficiently.

  The filter unit 69 may be configured to discharge dust from the dust discharge port 95 by movement other than rotation. Similarly, the lid 53 may be configured to open and close the dust discharge port 95 by movement other than rotation. Further, the filter unit 69 and the lid 53 may be configured not to move (turn).

  Further, the cord reel chamber, the power cord, the cord reel, and the like are not essential components. That is, the electric vacuum cleaner 11 may be configured to supply power to the electric blower 27 or the like by a battery such as a secondary battery.

  And as the vacuum cleaner 11, for example, an upright type in which the floor brush 19 is connected to the lower part of the vacuum cleaner main body 13, or an arbitrary type such as a handy type can be used. The configuration is not limited.

11 Vacuum cleaner
13 Vacuum cleaner body
27 Electric blower
36 Dust collection cup as dust collector
51 Case body
53 lid
71 Air intake
82 Filter
86 Inclined surface
93 Exhaust port
95 Dust outlet
113 partition ribs

Claims (7)

A case body provided with an air inlet that forms a flow path having a horizontal component, and an air outlet that is formed at a position facing the air inlet;
A filter located inside the case body and disposed on an inclined surface that is inclined at a predetermined angle of 45 ° or less with respect to the opening direction of the intake port, and at least a part of which is located at a projection position of the shape of the intake port. A dust collector characterized by comprising. The dust collector according to claim 1, wherein the inclined surface is in contact with the inner surface of the case body on the air inlet side. The dust collector according to claim 1 or 2, wherein the inclined surface is extended downstream from the projection position of the shape of the intake port on the downstream side of the filter. The partition rib which divides the flow path which has the width dimension more than the projection position of the shape of the said inlet in the inner surface side of a case body in the position facing the inlet of a filter is provided. The dust collector as described in any one. The case body has a dust outlet at the bottom for discharging dust to the outside.
Comprising a lid for opening and closing the dust outlet;
The filter is pivotally supported on the case body and is pivotally supported by the case body. The filter is pivoted to move the dust to the dust discharge port side with the dust discharge port being opened by the cover body. The dust collector according to any one of claims 1 to 4, wherein: The dust collector according to claim 5, wherein the filter is integrally attached to the lid. A vacuum cleaner body containing an electric blower,
A vacuum cleaner comprising: the dust collecting device according to any one of claims 1 to 6 disposed in the vacuum cleaner main body so that an exhaust port communicates with a suction side of the electric blower.