JP2014171668A - 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 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 cup part 82 inserted to a cylindrical tubular member 81 where a separation body part 47 is attached to one end. The cup part 82 includes a partitioning part 92 continuously arranged from a cup part body 91 for partitioning a first dust collection part 95 storing coarse dust D1. The partitioning part 92 is brought into contact with a wall part 55 of the separation body part 47 in a state where the cup part 82 is moved toward the tubular member 81 so as to perform the partition of a second dust collection part 107 from the wall part 55. The partitioning part 92 is separated from the wall part 55 in a state where the cup part 82 is moved in the opposite direction of the tubular member 81 so as to allow fine dust D2 inside the second dust collection part 107 to move into the first dust collection part 95.

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 can be collected separately, and these dusts can be mixed and discarded at the same time. It is an object of the present invention to provide a dust collector capable of preventing dust separated by a second separation part from rising and leaking outside, and a vacuum cleaner equipped with the dust collector.

  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 includes a cylindrical tube member to which the separation main body is attached to one end side. Further, the dust collecting main body portion is inserted into the cylindrical member, moves relative to the cylindrical member side when attached to the main body case, and is relatively opposite to the cylindrical member side when detached from the main body case. The cup part which moves to is provided. This cup part has a cup part main body which divides the 1st dust collection part which collects the dust separated by the 1st separation part. Moreover, this cup part has the division part provided continuously with the cup part main body. This partition part partitions between the wall part the 2nd dust collection part which contacts the wall part in the state which the cup part moved to the cylinder member side, and accumulates the dust isolate | separated by the 2nd separation part. Moreover, this partition part is separated with respect to a wall part in the state which the cup part moved to the opposite direction with respect to the cylinder member side, and moves the dust in a 2nd dust collection part into a 1st dust collection part.

It is a longitudinal cross-sectional view which shows the state which mounted | wore the main body case with the dust collector of 1st 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 cross-sectional view which shows a part of dust collector same as the above. It is a perspective view which shows the state which discards the dust inside a dust collector same as the above. 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. It is a longitudinal cross-sectional view which shows the state which removed the dust collector of 2nd Embodiment with respect to the main body case.

  The configuration of the first 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 vacuum cleaner main body 13 includes a main body case 26 having large-diameter traveling wheels 23 on both sides and a swiveling wheel (not shown) at the lower portion, and is outside the main body case 26. A dust collecting device 27, which is a dust collecting cup, is detachable from the upper part. 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, A shade portion 62 which is a compression portion provided coaxially on the lower end side is provided, and is disposed coaxially with the dust collection main body portion 48 at the center of the dust collection main body 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. Accordingly, the shade portion 62 has a diameter larger than that of the exhaust tube portion 61 and protrudes in the radial direction with respect to the exhaust tube portion 61. 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.

  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. Further, the front end portion (lower end portion) of the wall portion 55 extends outward from the central axis of each second separation portion 53, and the front end portion has an elastomer or rubber having flexibility and elasticity. A packing 75 which is a closing member such as is attached.

  The seal member 56 closes the gap at the outer peripheral position between the separation main body portion 47 and the dust collection main body portion 48, and is formed in an annular shape by an elastomer having flexibility and elasticity, or rubber, The wall 55 and the second separation part 53 are continuous over the entire circumference of the separation main body 47 in the circumferential direction at a position outside the lower end part.

  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 includes a cylindrical tubular member 81 that is an upper cup having a diameter substantially equal to that of the separation main body portion 47, and a bottomed cylindrical cup that is a lower cup inserted through the tubular member 81. Part 82. In the dust collection main body 48, the cup portion 82 is movable in the axial direction, that is, in the vertical direction with respect to the cylindrical member 81.

  The cylindrical member 81 is formed of a member such as a synthetic resin, and integrally includes a cylindrical cylindrical member main body 84 and an inclined portion 85 that is continuous with the lower end portion of the cylindrical member main body 84. Further, on the inner periphery of the cylinder member 81, the movement of the cup part 82 is guided along the vertical direction as the movement direction of the cup part 82 with respect to the cylinder member 81, and the cup part 82 is prevented from rotating in the circumferential direction. The (first) guide ribs 87, 87 serving as the (first) guide portion are projecting toward the central axis. Further, on both sides of the rear portion of the cylindrical member 81, there are projecting positioning projections (not shown) as separation main body fixing portions for positioning when the dust collecting device 27 is attached to the main body case 26.

  The cylindrical member body 84 has a dust disposal port 88 for disposing the dust in the dust collection body 48 on the inner periphery of the upper end side opposite to the inclined portion 85, and is separated into the dust disposal port 88. The seal member 56 of the main body 47 is fitted.

  The inclined portion 85 is inclined downward from the cylindrical member main body 84 toward the central axis, and serves as a receiving portion when the cup portion 82 moves to the lowest end.

  The guide ribs 87 are spaced apart from each other in parallel, and are formed on the inner peripheral surface of the cylindrical member main body 84, for example. In addition, the guide ribs 87 and 87 are disposed, for example, at a plurality of locations in the circumferential direction of the cylindrical member 81.

  When the dust collector 27 is attached to the main body case 26, the positioning convex portion is inserted into the positioning receiving portions 89 and 89 serving as fixed receiving portions opened at the front portion of the main body portion 31 of the main body case 26. It has come to be. Therefore, the cylindrical projection 81 is fixed at a fixed position with respect to the main body case 26 by the positioning convex portion.

  The cup part 82 includes, for example, a bottomed cylindrical cup part main body 91 formed of a member such as a transparent (transparent) synthetic resin, and a partition part 92 continuous with the upper end of the cup part main body 91. Is integrated.

  In the cup body 91, the first separation part 51 is disposed inside with the separation body part 47 attached to the dust collection body part 48, and between the inner peripheral surface and the outer periphery of the first separation part 51, that is, the first A swirling air passage 94 that swirls dust-containing air around the separation portion 51 and a coarse dust D1 separated mainly by the first separation portion 51 by swirling the dust-containing air in the swirling air passage 94 is mainly accumulated. One dust collection part 95 is partitioned. Therefore, the first dust collecting portion 95 is visible from the outside through the cup portion main body 91. Further, a retaining projection 96 that prevents the cup portion 82 from slipping off from the cylindrical member 81 protrudes from the outer peripheral surface of the cup portion main body 91. Further, an inlet 97 for sucking dust-containing air is opened at the rear part of the cup body 91. A dust collector handle 98 for gripping the dust collector 27 (dust collector main body 48) is provided outside the cup main body 91. The lower part of the cup part main body 91 is supported by the protruding receiving part 32 in a state where the dust collecting device 27 is attached to the main body case 26, so that the cup part 82 is fixed to the main body case 26. The direction approaching the main body 47 (upward), that is, the direction moving toward the cylindrical member 81 side, and the direction away from the separation main body 47 by its own weight by removing the dust collector 27 from the main body case 26 (lower) That is, it moves in the opposite direction with respect to the cylindrical member 81 side.

  The retaining projection 96 protrudes outward (toward the radial direction) from the inner circumference (minimum diameter portion) of the cylindrical member 81 (inclined portion 85) .For example, when discarding dust or collecting dust The cup portion 82 is prevented from falling off the cylindrical member 81 by contacting the cylindrical member 81 (inclined portion 85) when the dust collecting main body portion 48 is turned upside down when cleaning the main body portion 48, etc. .

  The introduction port 97 extends substantially horizontally rearward, and is airtightly connected to the communication opening 41 in a state in which the dust collector 27 is attached to the main body case 26. Therefore, the introduction port 97 is airtightly connected to the main body suction port 45 via the communication opening 41 and the main body air passage portion.

  The partition portion 92 integrally includes an inclined surface portion 101 as a dust guide portion continuous with the upper end portion of the cup portion main body 91, and an outer wall portion 102 continuous with the upper end portion of the inclined surface portion 101. The partition 92 is located on the inner peripheral side of the cylindrical member 81.

  The inclined surface portion 101 is positioned above the inclined portion 85 of the cylindrical member 81 and is inclined so as to gradually expand upward with respect to the cup portion main body 91.

  The outer wall portion 102 is located inwardly of the cylindrical member main body 84 of the cylindrical member 81, and is formed in a cylindrical shape having a diameter substantially equal to the maximum diameter of the inclined surface portion 101. Further, on the outer periphery of the outer wall portion 102 opposite to the inner periphery of the cylindrical member main body 84, the guide ribs 87 can be slid along the vertical direction, which is the moving direction of the cup portion 82 with respect to the cylindrical member 81. A plurality of (second) guide ribs 105 serving as (second) guide portions are provided so as to be fitted to guide the movement of the cup portion 82 and prevent the cup portion 82 from rotating in the circumferential direction. In the present embodiment, the guide rib 105 on the cup portion 82 side is fitted between the guide ribs 87 on the cylindrical member 81 side, but the guide rib on the cylindrical member 81 side is fitted between the guide ribs on the cup portion 82 side. It is good also as composition to combine.

  The partition portion 92 is separated by the second separation portion 53 between the front end portion (packing 75) of the wall portion 55 and the front end portion (outer peripheral side) of the wall portion 55 by being pressed against the inclined surface portion 101. The second dust collecting portion 107 that collects the collected dust, that is, the fine dust D2, can be partitioned. That is, the second dust collecting portion 107 is divided into a circular shape (arc shape) immediately below the central axis position of each second separating portion 53 and outside the lower end portion of the second separating portion 53. , Located around the upper side of the first separation unit 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 107, and air does not flow.

  Next, the cleaning operation according to the first 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 portion 51 and the wall portion 55 of the separation main body portion 47 are inserted into the inside of the cup portion 82 of the dust collection main body portion 48, and the seal member 56 is inserted into the upper end portion of the tubular member main body 84 of the tubular member 81. Are fitted into the inner peripheral edge, that is, the dust disposal port 88.

  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 89, 89 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, etc. 47, the lower end portion (other end portion) of the cup portion main body 91 of the movable cup portion 82 with respect to the cylindrical member 81 fixed integrally with the tube member 81 is supported from below by the protruding receiving portion 32, so that the separation main body portion The cup portion 82 moves relatively upward (one end side) while being guided by the guide ribs 87 and 87 and the guide rib 105 with respect to the tube member 81 and the cylindrical member 81, and the partition portion 92 (outer wall portion 102) of the cup portion main body 91 is moved. The upper end is pressed against the lower part of the seal member 56, and the lower end side, which is the front end side of the wall portion 55 protruding from the separation main body portion 47, is in close contact with the inclined surface portion 101 of the dust collecting main body portion 48 via the packing 75. A second dust collecting portion 107 is partitioned between the outer periphery of the wall portion 55 and the partition portion 92 (FIG. 1). Further, the introduction port 97 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 port 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. 95, the inlet 97, the communication opening 41, the main body air passage section, and the main body suction port 45 to act on the pipe section 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 97 via 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 97. It is sucked into the cup part 82 of the 27 dust collecting main body part 48.

  In this cup portion 82, the dust-containing air swirls in the swirling air passage 94, so that particularly coarse dust D1 in the dust-containing air is centrifuged and falls along the inner peripheral surface of the dust collection main body portion 48. Accumulated on the bottom. The coarse dust D1 is carried from the swirling air passage 94 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. It is led to the part 107 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 portion 82 loses support from the lower side by the protrusion receiving portion 32, so that it moves downward by its own weight while being guided by the guide ribs 87, 87 and the guide rib 105. As a result, the adhesion of the wall portion 55 (packing 75) to the inclined surface portion 101 is released, and the fine dust D2 stored in the second dust collecting portion 107 moves along the inclination of the inclined surface portion 101 into the interior of the cup body 91. The first dust collecting unit 95 drops and moves to the upper side of the coarse dust D1 stored in the first dust collecting unit 95 and mixes with the coarse dust D1 (FIG. 2).

  Thereafter, the user removes the separation main body 47 from the dust collection main body 48, holds the dust collector handle 98 and carries the dust collection main body 48 to a disposal position such as a trash can, and then lowers the upper side downward. By turning it over so that it tilts to the right (Fig. 4), the dust D1 collected in the dust collection body 48 in a compressed state and the fine dust D2 mixed with this dust D1 are simultaneously discarded from the dust disposal port 88. Is done. At this time, the cup portion 82 does not fall off the cylindrical member 81 because the retaining projection 96 comes into contact with the cylindrical member 81 (inclined portion 85).

  As described above, according to the first embodiment, 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 95. When the upper side of the dust collection body 48 is tilted downward and turned over from the dust disposal port 88, the coarse dust D1 is positioned so as to cover the upper side of the fine dust D2. Suppression of fine dust D2 can be suppressed.

  In the first embodiment, as in the second embodiment shown in FIG. 7, the bottom portion of the cup portion main body 91 of the cup portion 82 may be configured by a bottom lid 109 that can be opened and closed.

  The bottom cover 109 has, for example, a rotating shaft 109a on the rear side which is the dust collector handle portion 98 side, and the front side which is the opposite side to the cup portion main body 91 by a locking means (clamp) (not shown). And is removably locked.

  Then, when the locking by the locking means of the bottom lid 109 is released in a state where the dust collector 27 is removed from the main body case 26, the bottom of the cup unit main body 91 is opened, and the rough mixed inside the cup unit main body 91 is opened. Dust D1 and fine dust D2 are simultaneously discarded.

  In this way, by allowing the bottom end (other end) of the cup portion main body 91 to be opened and closed by the bottom lid 109, dust can be discarded without removing the separation main body portion 47 from the dust collection main body portion 48. Therefore, dust (fine dust D2) attached to the separation main body 47 does not fall when the separation main body 47 is removed from the dust collection main body 48, and the dust can be disposed of more easily and reliably. Will be improved.

  Further, in each of the embodiments described above, instead of the configuration in which the cup portion 82 drops with respect to the cylindrical member 81 due to its own weight and moves downward, for example, the cup portion 82 is pulled down with respect to the cylindrical member 81. It is good also as a structure to move.

  Furthermore, the vacuum cleaner 11 is not limited to the 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. .

  In at least one embodiment described above, the dust collecting main body portion 48 is inserted into the cylindrical cylindrical member 81 to which the separation main body portion 47 is attached to one end side (upper end side), and is movable with respect to the cylindrical member 81. The cup portion 82 is configured to be moved relative to the cylindrical member 81 side by attaching the dust collecting device 27 to the main body case 26, and the dust collecting device 27 is moved from the main body case 26 to the dust collecting device 27. Is configured to move relative to the cylindrical member 81 side in the opposite direction. Further, the cup part 82 is constituted by a cup part main body 91 that partitions the first dust collecting part 95 that collects the dust separated by the first separation part 51, and a partition part 92 that is continuous with the cup part main body 91. In the state where the cup portion 82 is moved to the cylindrical member 81 side, the wall portion 55 and the inclined surface portion 101 of the partition portion 92 come into contact with each other to collect the dust (fine dust D2) separated by the second separation portion 53. 2 The dust collecting portion 107 is partitioned between the wall portion 55 and the partition portion 92, and the partition portion 92 with respect to the wall portion 55 in a state where the cup portion 82 is moved in the opposite direction with respect to the cylindrical member 81 side. The inclined surface portion 101 is separated and the dust in the second dust collecting portion 107 is moved into the first dust collecting portion 95. 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 cup portion 82 moves in the opposite direction with respect to the cylindrical member 81 side, and is separated by the coarse dust D1 separated by the first separation portion 51 and the second separation portion 53. Fine dust D2 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, 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.

  Furthermore, although the dust-containing air swirling in the swirling air passage 94 in the first dust collecting portion 95 is likely to generate static electricity on the inner peripheral surface of the cup body 91, fine dust D2 is contained in the first dust collecting portion 95. Therefore, the fine dust D2 does not stick to the inner peripheral surface of the cup body 91 due to static electricity, and the visibility in the first dust collecting section 95 does not deteriorate.

  The first dust collecting portion 95 and the second dust collecting portion 107 can be more reliably blocked by providing the packing 75 that closes the gap between the wall portion 55 and the inclined surface portion 101 in contact with the wall portion 55. Thus, it is possible to more reliably prevent the fine dust D2 accumulated in the second dust collecting unit 107 from falling to the first dust collecting unit 95 side and circulating in the dust collecting device 27 by driving the electric blower 39.

  Further, the guide ribs 87 and 87 are provided along the moving direction of the cup portion 82 on the cylindrical member 81, and the guide ribs 105 are provided on the cup portion 82 along the moving direction of the cup portion 82, and the guide ribs 87 and 87 are provided. By fitting the guide rib 105 between 87, the movement of the cup portion 82 can be guided to move the cup portion 82 more smoothly, and the cup portion 82 can be prevented from rotating with respect to the cylindrical member 81.

  Further, since the partition portion 92 of the cup portion 82 is pressed against the seal member 56 of the separation main body portion 47 in a state where the dust collecting device 27 is attached to the main body case 26, the thin portion accumulated in the second dust collection portion 107. It is possible to prevent the dust D2 from leaking to the cylindrical member 81 side.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof 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
81 Tube member
82 Cup
87,105 Guide rib as guide
91 Cup body
92 compartment
95 First dust collector
107 Second dust collection part

Claims (3)

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 cylindrical tube member to which the separation main body is attached to one end side;
A cup that is inserted through the cylindrical member, moves relative to the cylindrical member side when attached to the main body case, and moves relative to the cylindrical member side when removed from the main body case. With
The cup part is
A cup body defining a first dust collecting section for storing dust separated by the first separating section;
A second dust collecting portion that is provided continuously with the cup portion main body, and that collects the dust separated by the second separation portion in contact with the wall portion in a state where the cup portion has moved to the cylindrical member side; Partitioning with the wall portion, and separating the dust in the second dust collecting portion away from the wall portion with the cup portion moving in the opposite direction with respect to the cylindrical member side. 1 A dust collector characterized by having a partition part to be moved into the dust collection part. A guide portion that is provided on the cylindrical member and the cup portion along the moving direction of the cup portion, and guides the movement of the cup portion by being fitted to each other and prevents the cup portion from rotating relative to the cylindrical member. The dust collector according to claim 1, comprising: A body case containing an electric blower;
The dust collector according to claim 1, wherein the dust collector 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. Electric vacuum cleaner.

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