JP2014171669A - Dust collector and vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust collector capable of simultaneously disposing of dust separated by a first separation part and dust separated by a second separation part by reliably mixing them while independently storing both kinds of dust, and also preventing the dust separated by the second separation part from flying and leaking outside when mixing the dust.SOLUTION: A dust collection body part 48 includes a blind and cylindrical cup part 81 for partitioning a first dust collection part 85 storing coarse dust D1. The dust collection body part 48 includes: an outer wall part 92 fixed to the side of a separation body part 47; and a partitioning part 82 having a deformable part 91a having flexibility and connecting the outer wall part 92 to the cup part 81. The partitioning part 82 is brought into contact with a wall part 55 by the deformation of the deformable part 91a due to a fact that the cup part 81 is supported by a body case 26 so as to partition a second dust collection part 97 for storing fine dust D2. The partitioning part 82 is separated from the wall part 55 by the deformation of the deformable part 91a in a state where the cup part 81 is detached from the body case 26 so as to allow dust inside the second dust collection part 97 to move into the first dust collection part 85.

Description

  FIELD Embodiments described herein relate generally to a dust collector that separates and collects dust from dust-containing air sucked by driving of an electric blower and a vacuum cleaner including the dust collector.

  Conventionally, this type of vacuum cleaner includes a main body case that houses an electric blower and a dust collector that is detachably attached to the main body case. This dust collecting device is a so-called dust collecting cup, and separates and collects dust from dust-containing air sucked by driving of an electric blower.

  As such a dust collector, a so-called cyclone separation type is known in recent years, in which dust is centrifuged (cyclone separation) by swirling dust-containing air inside. In such a cyclone separation type dust collector, the size and specific gravity of dust that can be separated are set according to the size (swivel diameter) of the centrifuge, so centrifuge units with different sizes are provided in multiple stages. Thus, dusts having different sizes and specific gravity in the dust-containing air can be separated.

JP 2012-40443 A

  It is preferable that dust having a small size and specific gravity, that is, fine dust, is collected in a place different from dust having a large size and specific gravity, that is, coarse dust so that the dust does not rise in the dust collector when the electric blower is driven again.

  Therefore, in the configuration described in Patent Document 1, a plurality of second centrifuge units that centrifuge fine dust are provided around the first centrifuge unit that centrifuges and collects coarse dust, and these second centrifuges are provided. The fine dust separated by the separation unit is configured to be dropped and stored in a dust storage unit partitioned in the center of the first centrifugal separation unit. The accumulated dust can be discarded at the same time by opening the lower part of the first centrifugal separator.

  However, in this configuration, since the coarse dust separated and collected by the first centrifugal separator is collected around the fine dust accumulated in the dust reservoir, these coarse dust and fine dust are mutually separated at the time of disposal. There will be a risk that fine dust will rise in the event of a fall.

  The problem to be solved by the present invention is that the dust separated in the first separation part and the dust separated in the second separation part are separately stored, and these dusts can be reliably mixed and discarded at the same time, and the dusts are mixed. It is an object of the present invention to provide a dust collecting device and a vacuum cleaner including the dust collecting device, which can prevent dust separated by a second separation part from rising and leaking to the outside.

  The dust collector of the embodiment is a dust collector that is detachably provided in a main body case that houses an electric blower, and separates and collects dust from the dust-containing air sucked by the operation of the electric blower. This dust collector has a separation body part and a dust collection body part attached to this separation body part. The separation main body includes a first separation unit that is located inside the dust collection main body and separates dust contained in the air sucked into the dust collection main body. The separation main body includes a second separation unit that centrifuges dust contained in the air that has passed through the first separation unit. Further, the separation main body portion includes a wall portion that can contact the inside of the dust collection main body portion. The dust collection main body portion includes a bottomed cylindrical cup portion that partitions the first dust collection portion that collects the dust separated by the first separation portion. The dust collection main body includes a partition section main body that is fixed to the separation main body section, and a partition section that has flexibility and a deformable section that connects the partition section main body to the cup section. This partition part partitions the 2nd dust collection part which contacts the wall part by the deformation | transformation of a deformable part by a cup part being supported by a main body case, and accumulates the dust isolate | separated by the 2nd separation part. Further, the partition portion is separated from the wall portion by the deformation of the deformable portion in a state where the cup portion is detached from the main body case, and the dust in the second dust collecting portion is moved into the first dust collecting portion. Move.

It is a longitudinal cross-sectional view which shows the state which mounted | wore the main body case with the dust collector of one Embodiment. It is a longitudinal cross-sectional view which shows the state which removed the dust collector same as the above with respect to the main body case. It is a perspective view which shows the state which discards the dust inside a dust collector same as the above. It is a side view which shows the state which mounted the isolation | separation main-body part of the dust collector same as the above on the plane. It is a perspective view which shows a main body case same as the above from the front. It is a perspective view which shows the vacuum cleaner provided with the dust collector same as the above.

  The configuration of one embodiment will be described below with reference to FIGS.

  In FIG. 6, reference numeral 11 denotes a so-called canister-type vacuum cleaner. The vacuum cleaner 11 includes a pipe portion 12 that is an air passage forming body, and a vacuum cleaner body 13 to which the pipe portion 12 is detachably connected. have.

  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 and the like And.

  For example, a loop-shaped gripping portion 21 protrudes toward the hose body 16 on the hand operating portion 17, and a plurality of operation setting buttons 22 are provided on the gripping portion 21.

  As shown in FIGS. 1 to 6, the cleaner body 13 includes a body case 26 having a large-diameter traveling wheel 23 on both sides and a swivel wheel (not shown) on the lower side. A dust collecting device 27 that is a dust collecting cup can be attached to and detached from the upper portion. The cleaner body 13 is configured to be able to travel (move) at least along the front-rear direction on the floor surface as a surface to be cleaned by the traveling wheels 23 and the turning wheels. Hereinafter, the front-rear direction and the left-right direction are based on the traveling (moving) direction of the cleaner body 13 (main body case 26).

  The main body case 26 is made of, for example, a synthetic resin, and supports a main body 31 located behind the dust collector 27 and a lower part of the front of the main body 31 to support the lower portion of the dust collector 27. And a protrusion receiving portion 32 as a dust collector supporting portion. Inside the main body case 26, a main body air passage portion (not shown) bent in an L shape in a side view is disposed across the main body portion 31 and the protruding receiving portion 32.

  The traveling wheels 23 are rotatably supported on both sides of the main body 31. Further, on the upper side of the front portion of the main body 31, for example, a loop-shaped handle 34 for gripping the cleaner main body 13 (main body case 26) protrudes in an inclined manner toward the rear. Further, in the main body 31, an electric blower chamber (not shown) is partitioned on one side of the lower portion, for example, the right side, and a power supply chamber (not shown) is partitioned on the other side, for example, the left side. The electric blower chamber accommodates an electric blower 39 and a control circuit unit (not shown) that controls the operation of the electric blower 39. The power supply chamber rotatably accommodates a cord reel device (not shown) as a power supply unit in which a power cord capable of supplying power from an external power source to the electric blower 39 and the like is wound.

  In addition, a communication opening 41 that is airtightly connected to the upstream side of the dust collector 27 is formed in the lower part of the front part of the main body part 31, and an electric blower is provided in the upper part of the front part of the main body part 31. An intake opening 42 is formed on the downstream side of the dust collector 27 attached to the main body case 26 so as to communicate with the suction side of 39 and to be airtightly connected. A plurality of exhaust holes (not shown) communicating the electric blower chamber and the outside of the main body case 26 are formed at the rear part of the main body portion 31, and the power supply chamber and the main body case are provided on the other side above the exhaust holes. A cord lead-out port (not shown) for communicating with the outside of 26 and taking in and out the power cord is formed.

  A main body suction port 45 to which the connection pipe portion 15 of the pipe portion 12 is connected is formed on the front surface of the protrusion receiving portion 32, and this main body suction port 45 is an opening at the upstream end of the main body air passage portion. . Therefore, the main body suction port 45 communicates with the communication opening 41 via the main body air passage, and can communicate with the upstream side of the dust collector 27 via the communication opening 41.

  The operation of the electric blower 39 is controlled by the control circuit unit according to the operation of the setting button 22. The electric blower 39 is disposed with the suction side as an upper side, for example.

  The control circuit unit is electrically connected to the setting button 22, and the electric blower is operated in an operation mode (for example, strong mode, medium mode, weak mode, automatic mode, stop mode, etc.) set by operating the setting button 22. It is configured to set 39 actions.

  On the other hand, the dust collector 27 includes a separation main body portion 47 as a first main body portion and a cylindrical dust collection main body portion 48 as a second main body portion in a detachable manner. The dust collector 27 is fixed by being fitted to the front portion of the main body 31 on the rear side in a state where the dust collector 27 is attached to the main body case 26. Hereinafter, in the dust collector 27, the vertical direction means one end side and the other end side in the axial direction of the dust collector 27 (an upper side that is one end side of the one-dot chain line L in FIG. Side). That is, the vertical direction in the dust collector 27 is based on the vertical direction in the state of the dust collector 27 alone, and the vertical direction of the dust collector 27 in the state of being attached to the main body case 26 is not necessarily the same. It may not match.

  The separation main body portion 47 includes a first separation portion (first centrifugal separation portion) 51 inserted into the dust collection main body portion 48, a ventilation air passage portion 52 communicating with the first separation portion 51, and the ventilation air flow. For example, a plurality of second separators (second centrifugal separators) 53 communicating with the downstream side of the first separator 51 via the passage 52 and an air passage part 54 communicating with the downstream side of the second separator 53. A wall portion 55 projecting downward, a seal member 56 attached to the outer periphery of the lower end portion, and a dust collector clamp as a locking device for locking the dust collector 27 to the main body case 26 57 and a cylindrical cover portion 58 that covers the outer side of each second separation portion 53 and forms the outer peripheral surface (outer surface) of the separation main body portion 47.

  The first separation unit 51 centrifuges relatively large dust in the dust-containing air, that is, the coarse dust D1, and includes an exhaust cylinder part 61 that is a substantially cylindrical structure body, The dust collecting body is provided with a shade portion 62 that is a compression portion provided coaxially on the lower end side, and a cylindrical guide portion 63 that guides the dust collecting body portion 48 side with respect to the separation body portion 47 side. The dust collection main body 48 is disposed coaxially with the central portion of the portion 48.

  The exhaust cylinder portion 61 includes a plurality of openings 64 communicating with the ventilation air passage portion 52 in the circumferential direction, and the entire openings 64 are covered with the separation filter 65. In addition, the lower end portion of the exhaust cylinder portion 61 is a bottom surface portion 66 that is an inclined surface that is inclined so as to gradually protrude upward from the peripheral side, that is, the outer edge side toward the center (center) side. It is blocked by.

  The shade portion 62 compresses dust by using negative pressure generated by driving the electric blower 39, and has a circular top plate protruding in a bowl shape from the periphery of the lower end portion of the exhaust tube portion 61 in the radial direction. Part 68 and a peripheral plate part 69 projecting downward from the outer peripheral edge of the top plate part 68 in the opposite direction to the exhaust tube part 61, and opening downward to form a first separation It is located at the lower end of the part 51. Therefore, the shade part 62 has a larger diameter than the exhaust cylinder part 61 and the guide part 63, protrudes in the radial direction with respect to the exhaust cylinder part 61 and the guide part 63, and is positioned outside the guide part 63. ing. Further, a plurality of compression openings 70 are opened at substantially equal intervals in the circumferential direction in the top plate portion 68, and these compression openings 70 are covered with a compression filter 71. The shade portion 62 is spaced upward from the bottom of the dust collection main body portion 48. Further, a lower end 62a that is a tip portion of the peripheral plate portion 69 of the shade portion 62 protrudes below a lower end portion that is a tip portion of the guide portion 63, and is orthogonal to the axial direction of the dust collector 27. Along the direction you want. Therefore, the separation main body portion 47 can be placed on the plane P by the lower end portion 62a of the shade portion 62.

  The guide part 63 protrudes coaxially with the shade part 62 from the bottom face part 66 of the exhaust cylinder part 61 inside the shade part 62.

  The ventilation air passage portion 52 is located above (on one end side) the first separation portion 51 and on the center side of each second separation portion 53. In other words, the ventilation air passage portion 52 is located at a substantially central portion of the separation main body portion 47. The ventilation air passage 52 is rectified while reducing the flow rate of the dust-containing air from the upstream side (downstream side of the first separation unit 51) to the downstream side (upstream side of the second separation unit 53). It is configured.

  Each second separation part 53 centrifuges relatively small dust in the dust-containing air that has passed through the first separation part 51, that is, fine dust D2, in other words, each second separation part 53 Dust that could not be separated by the first separation part 51 in the air is centrifuged, and is formed into a cylindrical shape (cone shape) that gradually decreases in diameter from the upper side that is one end side to the lower side that is the other end side. Has been. These second separation parts 53 are, for example, C-shaped virtual located on a plane that intersects (orthogonally) the central axis above the first separation part 51 with the central axis of the separation main body 47 as the center. Each of them is arranged on a circular arc with its central axis positioned. In other words, these second separation parts 53 are arranged in a circular arc shape (on the same circumference) spaced apart from each other at substantially equal intervals at positions excluding the rear part (air passage part 54) around the central axis of the dust collector 27. Has been. In addition, the second separation part 53 introduces and turns the dust-containing air that has passed through the ventilation air passage part 52 spirally along the tangential direction of the inner peripheral surface, and centrifuges the fine dust D2 at the lower end. In addition to being dropped from the section, air that is substantially free of dust and separated from the fine dust D2 is exhausted to the air passage section.

  The air passage portion 54 is located on the center side of the second separation portion 53 from the upper end on the downstream side of each second separation portion 53 and is partitioned inward of the ventilation air passage portion 52. This air passage portion 54 communicates with the downstream side of all the second separation portions 53, and from above each second separation portion 53, to the side of these second separation portions 53, in this embodiment, in an arc shape (substantially It is continuous so that the flow rate of air is gradually reduced toward the center of the second separation portions 53 arranged in a circular shape. Further, the downstream end of the air passage portion 54 is, for example, a rectangular exhaust opening 73 that communicates between the second separation portion 53 and the rear. The exhaust opening 73 is opened at the rear part of the cover part 58 and is positioned between the second separation parts 53 and 53 on the rear side. The exhaust opening 73 is airtight with the intake opening part 42 in a state in which the dust collector 27 is attached to the main body case 26. Configured to be connected. Therefore, the exhaust opening 73 is airtightly connected to the suction side of the electric blower 39 via the intake opening 42.

  The wall portion 55 is located on the outer periphery of the ventilation air passage portion 52 of the separation main body portion 47 and on the inner peripheral side of the lower end portion of each second separation portion 53, that is, from the position closer to the central axis than the outer periphery of the separation main body portion 47. It protrudes downward, inclines downward toward the outside, and the upper part faces the lower side of each second separation part 53.

  The dust collector clamp 57 is operated by operating the operation handle portion 77 located above the separation main body portion 47 (dust collection device 27) and the operation handle portion 77 located above the rear portion of the separation main body portion 47. A locking claw portion 78 as an operating locking portion is provided. Then, the dust collector 27 is fixed to the main body case 26 in a fixed position by the dust collector clamp 57 with the dust collector 27 attached to the main body case 26.

  The operation handle portion 77 is provided so as to be rotatable in the vertical direction, and can be operated to lift the front side upward.

  When the dust collecting device 27 is attached to the main body case 26, the locking claw portion 78 is an engagement receiving portion that is opened above the intake opening 42 at the front of the main body portion 31 of the main body case 26. The dust collecting device 27 is locked to the main body case 26 by being inserted into and engaged with the stop opening 79. The dust collecting device 27 is biased toward the advancing direction to the rear, and the operation handle portion 77 is lifted to operate. It is configured to retreat forward against the bias.

  On the other hand, the dust collecting main body portion 48 is integrally provided with a bottomed cylindrical cup portion 81 and a partition portion 82 that is continuous with the upper end portion that is one end portion of the cup portion 81.

  The cup portion 81 is formed of a member such as a transparent (transparent) synthetic resin, for example, and is disposed coaxially with the dust collector 27. Further, in the cup portion 81, the first separation portion 51 is disposed inside with the separation main body portion 47 attached to the dust collection main body portion 48, and between the inner peripheral surface and the outer periphery of the first separation portion 51, that is, Around the first separation portion 51, the swirling air passage 84 for turning the dust-containing air and the coarse dust D1 separated by the first separation portion 51 by the turning of the dust-containing air in the turning air passage 84 are mainly used. The first dust collecting part 85 to be stored is partitioned. Therefore, the first dust collecting portion 85 is visible from the outside through the cup portion 81. In addition, an inlet 87 for sucking dust-containing air is opened at the rear part of the cup portion 81. Further, a dust collector handle 88 for gripping the dust collector 27 (dust collector main body 48) is provided outside the cup portion 81. A cylindrical guided portion 89 projects upward along the central axis at the bottom of the cup portion 81.

  The introduction port 87 extends substantially horizontally rearward, and is airtightly connected to the communication opening 41 in a state where the dust collector 27 is attached to the main body case 26. Therefore, the introduction port 87 is airtightly connected to the main body suction port 45 via the communication opening 41 and the main body air passage portion.

  The guided portion 89 guides the movement of the cup portion 81 with respect to the separation main body portion 47. With the separation main body portion 47 attached to the dust collection main body portion 48, a lower portion of the separation main body portion 47 is provided. It is inserted and fitted in the guide portion 63 located so as to be slidable (slidable). Further, the guided portion 89 is formed in a convex shape that is cut out from the outline of the bottom portion of the cup portion 81. In this embodiment, the guided portion 89 is inserted into the guide portion 63, but the guide portion 63 may be inserted into the guided portion 89, for example.

  The partition portion 82 includes an inclined surface portion 91 as a dust guide portion continuous with the upper end portion of the cup portion 81, an outer wall portion 92 as a partition portion body continuous with the upper end portion of the inclined surface portion 91, and a rear portion of the outer wall portion 92. And a positioning convex portion (not shown) as a separation main body fixing portion that protrudes on both sides. The partition part 82 partitions a dust disposal port 94 for discarding the dust in the dust collection main body part 48 on the inner periphery on the upper end side of the outer wall part 92 opposite to the inclined surface part 91. The seal member 56 of the separation main body 47 is fitted into the dust disposal port 94.

  The inclined surface portion 91 is formed in an inclined surface shape having at least a part of the deformable portion 91a formed of a stretchable member having flexibility and elasticity, such as synthetic rubber. The outer wall portion 92 and the cup portion 81 are connected to each other so as to gradually expand upward. The deformable portion 91a is integrally formed with the cup portion 81 and the outer wall portion 92 together with the remaining other portions of the inclined surface portion 91 by, for example, two-color molding.

  The outer wall portion 92 is formed in a cylindrical shape having a diameter substantially equal to the maximum diameter of the separation main body portion 47 and the inclined surface portion 91, and is integrally fixed to the separation main body portion 47 side via a seal member 56. Yes.

  The positioning convex portion is used for positioning when the dust collector 27 is attached to the main body case 26. When the dust collector 27 is attached to the main body case 26, the positioning convex portion It is inserted into positioning receiving parts 96, 96 as fixed receiving parts opened at the front part. Therefore, the partitioning portion 82 is fixed to the main body case 26 at a fixed position by the positioning convex portion.

  The partition 82 is attached to the main body case 26 with the dust collecting device 27, so that the lower portion of the cup portion 81 is supported by the protruding receiving portion 32 with the dust collecting device 27 attached to the main body case 26. As a result, the deformable portion 91a of the inclined surface portion 91 is deformed in a direction (upward) toward the separation main body portion 47 fixed to the main body case 26, and is brought into pressure contact with the distal end portion of the wall portion 55. The second dust collecting part 97 that collects the dust separated by the second separating part 53, that is, the fine dust D2, can be partitioned, and by removing the dust collecting device 27 from the main body case 26, the dust is separated into the separating main body part 47 by its own weight. On the other hand, the deformable portion 91a of the inclined surface portion 91 is deformed in a direction (downward) away from the wall portion 55.

  That is, the second dust collecting portion 97 includes a partition portion 82 including a deformable portion 91a of the inclined surface portion 91 that is elastically deformed by pressure contact between the distal end portion (outer peripheral side) of the wall portion 55 and the distal end portion of the wall portion 55. The first separation portion is formed in a circumferential shape (arc shape) immediately below the central axis position of each second separation portion 53 and outside the lower end portion of each second separation portion 53. It is located around the upper side of 51 and outside the flow path of the air passing through the dust collector 27. In other words, the negative pressure generated by driving the electric blower 39 does not substantially act on the second dust collecting portion 97, and air does not flow.

  Next, the cleaning operation according to the embodiment will be described.

  When cleaning is started, first, the separation body 47 is attached to the dust collection body 48 and assembled integrally. At this time, the first separation part 51 and the wall part 55 of the separation body part 47 are inserted into the cup part 81 of the dust collection body part 48, and the seal member 56 is inserted into the outer wall of the partition part 82 of the dust collection body part 48. The portion 92 is fitted to the inner peripheral edge, that is, the dust disposal port 94.

  Next, the dust collector 27 is attached to the main body case 26. That is, the dust collecting device 27 is inserted while positioning the positioning convex portion or the like to the positioning receiving portions 96, 96 on the main body case 26 side, and is placed on and supported by the protruding receiving portion 32 of the main body case 26, and The dust collector 27 is locked to the main body case 26 by inserting and locking the locking claw portion 78 of the dust collector clamp 57 into the locking opening 79 of the main body case 26. As a result, in the dust collector 27, the separation main body portion 47 is fixed to the main body case 26 at a predetermined position by the positioning convex portion and the locking claw portion 78, and the cup portion 81 of the dust collection main body portion 48. The lower end portion (the other end portion) of the partition portion 82 is supported from below by the protruding receiving portion 32, so that the deformable portion 91a of the partition portion 82 is deformed with respect to the separation main body portion 47, and the cup portion 81 is connected to the guide portion 63 and the covered portion. While being guided by the guide portion 89, it moves relatively upward (one end side), and the lower end side, which is the front end side of the wall portion 55 protruding from the separation main body portion 47, comes into contact with the deformable portion 91a and this deformable portion 91a. Is elastically deformed, and the second dust collecting portion 97 is partitioned between the outer periphery of the wall portion 55 and the partitioning portion 82 (FIG. 1). Further, the inlet 87 and the exhaust opening 73 are hermetically connected to the communication opening 41 and the intake opening 42 of the main body case 26, respectively, and the dust collector 27 is disposed between the suction side of the electric blower 39 and the main body suction opening 45. The main body case 26 is mounted in an airtight connection. Note that when the dust collector 27 is already attached to the main body case 26, these operations are not necessary.

  In this state, the pipe portion 12 is connected to the main body suction port 45 of the cleaner main body 13 (main body case 26). Specifically, the pipe part 12 inserts and connects the connection pipe part 15 to the main body suction port 45, and sequentially connects the extension pipe 18 and the floor brush 19 to the distal end side of the hand operation part 17 as necessary. In this state, the setting button 22 of the hand operation unit 17 is electrically connected to a control circuit unit in the cleaner body 13 (main body case 26) and the like. In addition, when the pipe part 12 is already connected to the cleaner body 13, these operations are unnecessary.

  Then, after the user pulls out the power cord from the cord outlet and connects it to an outlet such as a wall surface, the user sets the operation mode of the electric blower 39 by gripping the grip portion 21 and operating the desired setting button 22. To do. The control circuit unit controls the input of the electric blower 39 corresponding to the set operation mode, and starts the electric blower 39 in the set operation mode.

  The negative pressure generated by the activation of the electric blower 39 includes the intake opening 42, the exhaust opening 73, the air passage 54, the second separation portion 53, the ventilation air passage 52, the first separation portion 51, and the first dust collection portion. 85, the inlet 87, the communication opening 41, the main body air passage portion, and the main body suction port 45 are acted on the pipe portion 12.

  The user sucks dust together with air from the front end side of the floor brush 19, the extension pipe 18, or the hand operation unit 17 by the action of the negative pressure.

  The dust-containing air, that is, the dust-containing air, is guided from the pipe portion 12 to the introduction port 87 through the main body suction port 45, the main body air passage portion, and the communication opening portion 41, and the dust collector is provided from the introduction port 87. It is sucked into the cup part 81 of the 27 dust collecting main body part 48.

  In this cup part 81, the dust-containing air swirls in the swirling air passage 84, whereby particularly coarse dust D1 in this dust-containing air is centrifuged and falls along the inner peripheral surface of the dust collecting main body part 48. Accumulated on the bottom. The coarse dust D1 is carried from the swirling air passage 84 to the shade portion 62 by a part of the flow of the dust-containing air, and the dust-containing air passes through the compression opening 70 of the shade portion 62, so that the compression filter 71 is compressed in the shade part 62 by 71.

  The dust-containing air from which the coarse dust D1 has been separated is filtered by the separation filter 65 when passing through the opening 64 of the exhaust cylinder portion 61. Further, the dust-containing air that has passed through the separation filter 65 is conveyed along the bottom surface portion 66 to the ventilating air passage portion 52 while being rectified upward on the downstream side. The dust-containing air is rectified by gradually reducing the flow rate in the ventilation air passage portion 52, and then flows into the second separation portions 53 by being branched.

  In these second separation portions 53, the dust-containing air is swirled along the inner peripheral surface, the fine dust D2 in the dust-containing air is centrifuged, falls along the second separation portion 53, and the wall portion 55 Due to the inclination of the second separation part 53, the second dust collection part 53 is escaped to a position shifted downward (directly below), in other words, to the side of the central axis of the second separation part 53. Guided to part 97 and stored.

  Then, the substantially dust-free air from which the fine dust D2 is centrifuged is exhausted from the central portion of each second separation portion 53 to the air passage portion 54 and merged, and the flow amount is reduced by the air passage portion 54. While being throttled, it is guided rearward and exhausted from the exhaust opening 73 to the outside of the dust collector 27.

  Thereafter, the air passes through the intake opening 42 and is then sucked into the electric blower 39, passes through the electric blower 39 while cooling, and becomes exhausted air, and is discharged from the electric blower 39 through the exhaust hole. The air is exhausted to the outside of the main body case 26.

  When the cleaning is completed, the user operates the predetermined setting button 22 so that the control circuit unit reduces the input of the electric blower 39 and stops the electric blower 39.

  When a certain amount of dust accumulates in the dust collector 27, the user lifts the operation handle 77 of the dust collector clamp 57 to retract the locking claw 78 from the locking opening 79, The dust collector 27 is removed from the main body case 26. At this time, in the dust collector 27, the cup part 81 loses support from the lower side by the protrusion receiving part 32, so that it moves downward by its own weight while being guided by the guide part 63 and the guided part 89. As a result, the downward inclination of the inclined surface portion 91 becomes relatively large, the close contact of the wall portion 55 with the inclined surface portion 91 is released, and the fine dust D2 stored in the second dust collecting portion 97 becomes the inclined surface portion 91. Along the slope of the cup portion 81, it drops and moves to the first dust collecting portion 85 inside the cup portion 81, falls on the upper side of the coarse dust D 1 stored in the first dust collecting portion 85, and mixes with the coarse dust D 1. (Figure 2).

  Thereafter, the user removes the separation main body 47 from the dust collection main body 48, holds the dust collector handle 88 and carries the dust collection main body 48 to a disposal position such as a trash can, and then moves the upper side downward. By turning it over so that it tilts (Fig. 3), the coarse dust D1 accumulated in the dust collection main body 48 in a compressed state and the fine dust D2 mixed with this coarse dust D1 are simultaneously discarded from the dust disposal port 94. Is done. Further, the separation main body 47 removed at this time is stably and independently held by placing the lower end 62a of the shade 62 on the plane P (FIG. 4).

  In the embodiment described above, the dust collecting main body portion 48 includes a bottomed cylindrical cup portion 81 that partitions the first dust collecting portion 85 that collects the dust (coarse dust D1) separated by the first separating portion 51. The outer wall portion 92 is fixed to the separation main body portion 47 side, and the partition portion 82 has a deformable portion 91a having flexibility and connecting the outer wall portion 92 to the cup portion 81. The partition part 82 is separated from the wall part 55 by the deformation of the deformable part 91a by the cup part 81 being supported by the main body case 26 and separated by the second separation part 53 (fine dust D2). The second dust collecting part 97 that collects water is partitioned, and the deformable part 91a is deformed (by the weight of the cup part 81) with the cup part 81 (dust collecting device 27) removed from the main body case 26. The dust (fine dust D2) in the second dust collector 97 is moved away from the wall 55 and moved into the first dust collector 85. As a result, the coarse dust D1 separated by the first separation part 51 and the fine dust D2 separated by the second separation part 53 can be separately stored in a state of being separated from each other. By removing the device 27 from the main body case 26, the deformable portion 91a is deformed and the cup portion 81 moves relatively downward, and the coarse dust D1 separated by the first separation portion 51 and the second separation portion 53 are separated. The fine dust D2 separated in step 1 can be mixed and the mixed dust can be discarded at the same time. When mixing the coarse dust D1 and the fine dust D2, the separation main body 47 may remain attached to the dust collection main body 48, so that even if the fine dust D2 soars, this soared. The fine dust D2 does not leak outside the dust collector main body 48 (dust collector 27). In addition, the deformable portion 91a is deformed so that the inclination angle becomes large, and the fine dust D2 adhering to the inclined surface portion 91 is more reliably dropped onto the first dust collecting portion 85 by vibration generated during the deformation. It becomes possible.

  In addition, since the fine dust D2 is located outside the air flow path passing through the dust collector 27, when the electric blower 39 is driven again, the fine dust D2 rises due to negative pressure, or the second separation. It does not circulate again to the part 53.

  Further, although dust-containing air swirling in the swirling air passage 84 in the first dust collecting portion 85 is likely to generate static electricity on the inner peripheral surface of the cup portion 81, fine dust D2 is contained in the first dust collecting portion 85. Therefore, the fine dust D2 does not stick to the inner peripheral surface of the cup part 81 due to static electricity, and the visibility in the first dust collecting part 85 is not lowered.

  Further, when the fine dust D2 is mixed with the coarse dust D1, the fine dust D2 falls on the upper part of the coarse dust D1 in the first dust collecting portion 85, so the upper side of the dust collecting main body 48 is inclined downward. Since the coarse dust D1 is positioned so as to cover the upper side of the fine dust D2 when the dust is disposed from the dust disposal port 94, the rising of the fine dust D2 at the time of disposal can be suppressed.

  Furthermore, by integrally forming the deformable portion 91a with the cup portion 81 and the outer wall portion 92, the dust collection main body portion 48 can be easily formed with a simple structure.

  Then, by deforming the deformable portion 91a of the inclined surface portion 91 by contact with the wall portion 55, the gap between the wall portion 55 and the inclined surface portion 91 can be closed, and the first dust collecting portion 85 and the second dust collecting portion 97 are closed. Therefore, the fine dust D2 collected in the second dust collecting part 97 falls to the first dust collecting part 85 side and circulates in the dust collecting device 27 by driving the electric blower 39. It can be prevented more reliably.

  The first separating portion 51 is provided with a cylindrical guide portion 63 projecting along the axial direction of the cup portion 81, and is guided at the bottom portion of the cup portion 81 along the guide portion 63. By projecting the portion 89, even when the deformable portion 91a is deformed by the guide portion 63 and the guided portion 89, the center position of the first separation portion 51 (separation main body portion 47) and the cup portion 81 is shifted. Can be prevented, and the cup portion 81 can be moved more smoothly.

  Furthermore, by forming the guided portion 89 in a convex shape that is thinned with respect to the bottom portion of the cup portion 81, dust does not accumulate inside the guided portion 89.

  The first separation portion 51 is located outside the guide portion 63, and the tip side protrudes from the tip end of the guide portion 63 and extends in a direction perpendicular to the axial direction of the cup portion 81 (dust collector 27). By providing the shaped shade portion 62, the separation main body portion 47 can be stably supported on the plane P by the lower end portion 62a of the shade portion 62 having a larger diameter than the guide portion 63.

  In the above-described embodiment, the vacuum cleaner 11 is not limited to one that is fed from an external power source by a cord reel device, and may be a so-called cordless type that incorporates a battery such as a secondary battery as a power source.

  Further, the vacuum cleaner 11 is not limited to the canister type, and for example, a so-called upright type in which a floor brush 19 is connected to the lower end of the main body case 26 that is long in the vertical direction can be used correspondingly. .

  Although one embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

11 Vacuum cleaner
26 Main unit case
27 Dust collector
39 Electric blower
47 Separation body
48 Dust collector body
51 First separation part
53 Second separation part
55 Wall
62 Shade section
63 Guide section
81 Cup
82 compartment
85 First dust collector
89 Guided part
91a Deformable part
92 Outer wall as the compartment body
97 Second dust collector

Claims (6)

A dust collector that is detachably provided in a body case that houses an electric blower and separates and collects dust from the dust-containing air sucked in by the operation of the electric blower,
A separation body,
The separation body part and the dust collection body part to be attached are provided,
The separation main body is
A first separation part that is located inside the dust collection body part and separates dust contained in the air sucked into the dust collection body part;
A second separator that centrifuges dust contained in the air that has passed through the first separator;
A wall that can contact the inside of the dust collection main body,
The dust collection main body is
A bottomed cylindrical cup portion defining a first dust collecting portion for storing dust separated by the first separation portion;
A partition body that is fixed to the separation body, and a deformable portion that has flexibility and connects the partition body to the cup, and the cup is supported by the body case Due to the deformation of the deformable portion, the second dust collecting portion that contacts the wall portion and accumulates the dust separated by the second separating portion is defined, and the cup portion is detached from the main body case. And a partition part that moves the dust in the second dust collecting part into the first dust collecting part while being separated from the wall part by deformation of the deformable part in a state where Dust collector. The dust collector according to claim 1, wherein the deforming portion is integrally formed with the cup portion and the partition portion main body. The first separation part has a cylindrical guide part protruding along the axial direction of the cup part,
The dust collector according to claim 1, wherein the cup portion includes a guided portion that protrudes from a bottom portion and is guided along the guide portion. The first separation part is located outside the guide part, and has a cylindrical shade part along the direction perpendicular to the axial direction of the cup part with the tip side protruding beyond the tip of the guide part. The dust collector according to claim 3. The dust collector according to claim 3 or 4, wherein the guided portion has a convex shape that is hollowed out from an outline of a bottom portion of the cup portion. A body case containing an electric blower;
A dust collecting device according to any one of claims 1 to 5, wherein the dust collecting device is detachably provided on the main body case and separates and collects dust from the dust-containing air sucked by the operation of the electric blower. Characterized vacuum cleaner.

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