JP2013106880A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner which is excellent in maintainability and enables size reduction and cost reduction of a second dust collecting device.SOLUTION: The second dust collecting device 42 includes a second centrifugal separation section 51. The second centrifugal separation section 51 has a separation section body 54 centrifuging dust by whirling dust-containing air. The second centrifugal separation section 51 has a lid part 55 positioned on the upper side of the separation section body 54 detachably in relation to this body 54 and opening and closing the upper side of the body 54 by detachment and attachment. The second dust collecting device 42 is equipped with a dust collecting case 52 accommodating the dust separated by the second centrifugal separation section 51. The dust collecting case 52 separated from the second centrifugal separation section 51, is positioned on the lower side of the separation section body 54 and connected detachably to the lower side of the body 54. The second dust collecting device 42 has a clamp 53 provided in the separation section body 54. The clamp 53 engages the separation section body 54 and the lid part 55 with each other on the upper side, while engaging the body 54 and the dust collecting case 52 with each other on the lower side.

Description

  Embodiments described herein relate generally to a vacuum cleaner including a dust collector that is detachably provided on a main body case.

  2. Description of the Related Art Conventionally, there is known an electric vacuum cleaner that is detachably equipped with a so-called cyclonic dust collecting device that centrifuges dust (cyclonic separation) by swirling dust-containing air. Such a dust collector includes a centrifuge that rotates dust-containing air to centrifuge dust, and a dust reservoir that accommodates the dust centrifuged by the centrifuge. The centrifuge has a cylindrical swirl that forms a swirl flow in the dust collector and is locked to the dust reservoir.

  In the case of a cyclone type dust collector, the separation performance of dust is determined according to the diameter of the swirling flow. Specifically, the separation performance improves as the diameter decreases. Therefore, in order to secure the amount of collected dust while further improving the separation performance, it is preferable that the centrifugal separation unit is provided with a separation chamber in which the swivel unit is arranged separately from the dust collection unit.

  In such a case, since dust adheres to the swivel part and the separation chamber in the separation chamber, the inside of the separation chamber can be maintained by allowing the separation chamber of the centrifugal separation unit to be opened and closed by a lid or the like. Can be considered. However, in this configuration, a configuration in which the lid portion is locked to the separation chamber side is required, which may increase the size of the dust collector or increase the cost due to an increase in the number of parts.

JP 2003-219994 A JP 2006-31895 A

  The problem to be solved by the present invention is to provide a vacuum cleaner that has good maintainability and can reduce the size and cost of the dust collector.

  The vacuum cleaner of the embodiment has a main body case. Moreover, this vacuum cleaner has the electric blower accommodated in the main body case. Furthermore, this vacuum cleaner has a dust collector provided detachably on the main body case. This dust collector includes a centrifuge. The centrifugal separator has a separator main body that rotates dust-containing air sucked into the interior by driving an electric blower to centrifuge the dust. In addition, the centrifugal separation unit is provided on one side of the separation unit main body, and is detachable from the separation unit main body, and includes a lid that opens and closes the one direction side of the separation unit main body by being attached and detached. In addition, the dust collector includes a dust reservoir that stores the dust separated by the centrifugal separator. The dust reservoir is provided separately from the centrifugal separator and is located on the other direction side different from the one direction side of the separation unit main body, and is detachably connected to the other direction side of the separation unit main body. And a dust collector is provided with the latching means provided in the isolation | separation part main body. The locking means locks the separation portion main body and the lid portion on one side, and locks the separation portion main body and the dust reservoir on the other direction side.

It is sectional drawing which shows a part of dust collector of the vacuum cleaner of one Embodiment, (a) shows the state which latched the isolation | separation part main body and the cover part by the latching means, (b) is the isolation | separation part main body. The state which removes a dust storage part from (c) shows the state which removes a cover part from a isolation | separation part main body. It is a perspective view which shows a dust collector same as the above. It is a vertical side view of a dust collector same as the above. It is a vertical front view of a dust collector same as the above. It is a perspective view which shows the state which removes the dust storage part of a dust collector same as the above from the isolation | separation part main body. It is a perspective view which shows a part of said dust collector, (a) shows the state which removes a cover part from a separation part main body, (b) shows the state which opens the one direction side of a separation part main body. It is a perspective view which shows the state which removed a part of vacuum cleaner same as the above. It is a perspective view which shows the state which removes the dust collector of a vacuum cleaner same as the above. It is a perspective view which shows a vacuum cleaner same as the above.

  Hereinafter, the configuration of an embodiment will be described with reference to FIGS.

  In FIG. 9, reference numeral 11 denotes a so-called canister-type vacuum cleaner. The vacuum cleaner 11 has a pipe portion 12 that is a suction air passage body (air passage formation body) and a pipe portion 12 that is detachably connected. A vacuum cleaner main body 13.

  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 that is detachably connected to the distal end side of the hand operating section 17, and the detachable connection selectively connected to the distal end side of the extension pipe 18 or the distal end side of the hose body 16. And a floor brush 19 as a suction port body.

  In the hand operation unit 17, a loop-shaped gripping part 21 protrudes toward the hose body 16, and a plurality of operation setting buttons 22 are provided on the gripping part 21.

  The vacuum cleaner main body 13 includes a main body case 25 having a large-diameter running wheel 23 on both sides and a swivel wheel (not shown) at the lower portion, and a dust collecting portion 26 is detachably attached to the upper portion of the main body case 25. It has become. The cleaner body 13 is configured to be able to travel (move) at least along the front-rear direction on the floor surface, which is the surface to be cleaned, by the traveling wheels 23 and the turning wheels.

  As shown in FIGS. 7 to 9, the main body case 25 is formed of, for example, a synthetic resin, and includes a main body portion 32 that houses the electric blower 31 and a protruding portion that protrudes from the front portion of the main body portion 32. And 33.

  The electric blower 31 is disposed in the main body 32, and its operation is controlled by a control means (not shown) housed in the main body 32 in accordance with the operation of the setting button 22. Further, the electric blower 31 is elastically supported at both ends in the axial direction via an elastic member (not shown) such as rubber.

  The main body part 32 is a part that supports the lower part of the rear side of the dust collecting part 26. In addition to the electric blower 31 and the control means, a cord reel device for supplying power to the electric blower 31, a secondary battery, or the like A power supply unit (not shown) is accommodated. Further, a mounting recess 34 for attaching / detaching a part of the dust collecting portion 26 is provided in the front portion of the main body 32, and the upper portion of the mounting recess 34 is covered with a cover 35. . In addition, a communication port (not shown) is formed above the mounting recess 34 and below the cover 35. The communication port communicates with the suction side of the electric blower 31 via a communication air passage portion (not shown) formed in the main body portion 32 along the vertical direction. Further, an exhaust hole (not shown) for discharging the exhaust from the electric blower 31 to the outside of the main body case 25 is formed at the rear end portion of the main body 32. The traveling wheels 23 are located on both sides of the main body 32.

  The protruding portion 33 is a portion that supports the lower portion on the front side of the dust collecting portion 26, and is inclined upward toward the front. Further, a duct portion (not shown) that communicates with the dust collecting portion 26 extends from the inside of the projecting portion 33 to the inside of the main body portion 32. The downstream end of the duct portion is a communication opening 39 that opens to the front portion of the main body 32 at a position lateral to the mounting recess 34. Further, a main body suction port 40 to which the connection pipe portion 15 of the pipe portion 12 is connected is formed in the front portion of the projecting portion 33, and the main body suction port 40 becomes an opening at the upstream end of the duct portion. Yes. A swiveling wheel is located below the projecting portion 33.

  Further, as shown in FIGS. 1 to 9, the dust collector 26 includes a first dust collector 41 as a dust separator located on the front side and having an axial direction along the vertical direction, and the first dust collector. A second dust collecting device 42 is integrally provided as a dust collecting device that communicates with 41 and is located behind the first dust collecting device 41.

  If the first dust collecting device 41 shown in FIG. 9 can collect coarse dust, which is relatively large dust such as fiber dust, from dust-containing air that has passed through the duct portion, for example, a dust collecting bag such as a paper bag or a cloth bag, Alternatively, an arbitrary configuration such as using a filter such as a urethane filter can be used, but in this embodiment, coarse dust, which is relatively large dust such as fiber dust, is centrifuged (cyclonic separation) by swirling the dust-containing air. ) And the first centrifuge part to be collected, and has a unit shape including a case body 45 having a bottomed cylindrical shape and a cylindrical swivel part (not shown) arranged in the case body 45. Further, the first dust collecting device 41 is detachably fixed to the main body case 25 by an attaching / detaching means (not shown) such as a clamp. The first dust collecting device 41 is inclined so as to incline toward the rear upper side in a state where the dust collecting unit 26 is mounted on the main body case 25 and fixed to the main body case 25 by a first attaching / detaching means (not shown), for example. It is arranged and covers the front part of the mounting recess 34 (FIG. 8).

  The case body 45 includes, for example, a cylindrical case main body 47 formed of a member such as a synthetic resin, a lid (not shown) that can open and close a lower end that is one end of the case main body 47, and an upper portion of the case main body 47. And a connecting air passage 49 formed integrally with each other. A suction port (not shown) that is an inflow port that is airtightly connected to the communication opening 39 that is the downstream end of the duct portion is formed on one side of the rear portion of the case main body 47. Air is configured to flow in the tangential direction from the duct portion into the case body 45.

  Further, the swivel part is disposed inside the case body 45 (case body 47) concentrically with the case body 45 (case body 47). A plurality of peripheral openings are formed around the swivel portion so as to communicate with the connecting air passage 49 via the inside of the swivel portion. These peripheral openings are respectively covered by a mesh-shaped dust collecting filter. It has been broken.

  Furthermore, the connection air passage 49 is formed in a longitudinal shape along the front-rear direction which is a predetermined direction, and extends from the upper part of the first dust collector 41 to the front part of the second dust collector 42 (FIG. 8). positioned.

  On the other hand, the second dust collector 42 shown in FIGS. 1 to 8 has a relatively small dust (fine dust) such as dust that cannot be separated by the first dust collector 41 (FIG. 9), that is, the first dust collector. The dust finer than the coarse dust separated by the dust device 41 (FIG. 9) is centrifuged. The second dust collecting device 42 includes a second centrifuge 51 as a centrifuge, and dust positioned separately from the second centrifuge 51 and below the second centrifuge 51. The unit has a dust collection case 52 which is a fine dust reservoir as a reservoir, and clamps 53 and 53 as locking means for locking the dust collection case 52 to the second centrifuge 51. The mounting recess 34 (FIG. 7) of the main body case 25 can be attached / detached by a second attaching / detaching means (not shown).

  The second centrifugal separator 51 includes a separator main body 54 and a lid 55 that opens and closes the upper side of the separator main body 54 opposite to the dust collecting case 52.

  The separation unit main body 54 rotates the dust-containing air sucked into the interior through the first dust collector 41 (FIG. 9) by driving the electric blower 31 (FIG. 9), and centrifuges the dust. A plurality of separation chambers 57, an outer frame portion 58 projecting around an upper side that is one direction side of these separation chambers 57, and a connecting portion 59 that is located on the lower side that is the other direction side of the separation chamber 57 It has one.

  The separation chamber 57 is formed in a long cylindrical shape that is gradually reduced in diameter from the upper side to the lower side, that is, from the upstream side to the downstream side. In this embodiment, for example, four rows are arranged in the front-rear direction. 12 columns in total are arranged in three rows in the left-right width direction, and the columns of the four separation chambers 57 located on both sides are close to the rows of the separation chambers 57 located in the center. It is inclined to. A rectifying unit 61 is detachably attached to the upper part of each separation chamber 57. The separation chamber 57 is a part for turning the dust-containing air flowing in from the rectifying unit 61 along the inner peripheral surface, and at least the maximum diameter dimension of the inner peripheral surface is the case body 45 of the first dust collector 41 ( The diameter is smaller than the case main body 47), for example, about half or less of the inner peripheral surface of the case body 45 (case main body 47).

  In addition, each rectifying unit 61 is inserted into the separation chamber 57 from the upper end of each separation chamber 57 and arranged concentrically. Further, each rectification unit 61 includes a through-cylinder part 63 as a ventilation part formed in a cylindrical shape along the vertical direction, and a rectification passage part 64 formed in a spiral shape around the circumference of the through-cylinder part 63. Are integrated with each other.

  Each cylinder passing portion 63 protrudes with the lower end side inserted into each separation chamber 57.

  In addition, each rectification passage portion 64 is open on the upstream side, that is, toward the upstream side, and is gradually inclined downward toward the downstream side. For this reason, the air containing dust flows into each separation chamber 57 along the tangential direction by each rectifying passage 64.

  In the present embodiment, the rectifying unit 61 is integrally formed for each column of the separation chambers 57, for example. That is, the rectification | straightening part 61 is integrally formed along with 4 back and front in this embodiment.

  Further, the outer frame portion 58 is formed in a quadrangular shape in a plan view, and is formed in a box shape surrounding the outside of the entire separation chamber 57 in a frame shape. That is, the outer frame portion 58 includes a bottom surface 58a that is continuous with the outer peripheral surface of the separation chamber 57, a front surface 58b that is an upstream side surface raised from the bottom surface 58a, both side surfaces 58c as a locking means mounting portion, and a downstream side surface. The rear surface 58d is provided, and the upper side is opened. A communication opening 58e that communicates with the connection air passage 49 (FIG. 9) of the first dust collector 41 is formed in the front surface 58b. Further, clamps 53 are pivotally supported on both side surfaces 58c so as to be rotatable. Further, the outer frame portion 58 divides the distribution air passage 67 as an air passage portion inside by closing the upper opening by the lid portion 55. The distribution air passage 67 is formed in a longitudinal shape along the front-rear direction so as to surround the entire outer side of the position closer to the upper side of all the separation chambers 57, and the upstream connection air passage 49 (see FIG. 9) and in parallel with the rectifying passage portion 64 of each rectifying portion 61.

  The connecting portion 59 is a portion serving as a lid of the dust collecting case 52, and the lower end portions of all the separation chambers 57 communicate with each other and are formed in a longitudinal shape in the front-rear direction. Further, a plurality of plate-like connection protrusions 59a are provided in the lower part of the connection part 59 along the left-right width direction. These connecting protrusions 59a are airtightly connected to the dust collecting case 52 side and are separated from each other in the front-rear direction.

  The lid 55 opens and closes the upper side of the separation unit main body 54 by being attached to and detached from the separation unit main body 54.The lid main body 71 located on the upper side (outside) and the lower side of the lid main body 71 ( A cover portion 72 located on the inner side, and a communication air passage 73 is defined between the lid portion main body 71 and the cover portion 72, and the communication air passage 73 is formed between the cover portion main body 71 and the cover portion 72. In communication with the vent openings 74 defined between the rear portions of the two.

  The lid main body 71 has a partition part 76 that partitions the front part, rear part, both side parts, and the upper part of the communication air passage 73, and a flange part 77 that projects from the outer edge of the partition part 76 in a flange shape. ing.

  The flange portion 77 is positioned on the front side of the partition portion 76 and extends along the left-right width direction. The flange portion 77 is positioned on both sides of the partition portion 76 and is a side portion as a held portion along the front-rear direction. A flange 77b is integrally provided. That is, the flange portion 77 is formed in a U shape in plan view. Further, a seal member 79 for airtightly connecting the lid portion 55 to the front surface 58b of the outer frame portion 58 and the upper end portion of the side surface 58c of the separation portion main body 54 is attached to the lower portion of the flange portion 77. .

  The front flange 77a is positioned along the upper edge of the communication opening 58e of the front surface 58b of the outer frame portion 58 in a state where the lid portion 55 is attached to the separation portion main body 54.

  Further, the both side flanges 77b are located along the both side surfaces 58c of the outer frame portion 58 in a state where the lid portion 55 is attached to the separation portion main body 54. Furthermore, a locking claw portion 77c, which is a temporary fixing portion as a lid portion locked portion to which each clamp 53 is locked, is located at an approximately central portion in the front-rear direction of each outer edge portion of both side flanges 77b. A longitudinal relief recess 77d is provided in the longitudinal direction on the side opposite to the clamp 53 with respect to the locking claw 77c.

  The seal member 79 is attached along the entire flange portion 77. Therefore, the seal member 79 is formed in a U shape that is continuous from the front side to both sides. Further, the upper end side of the covering portion 72 is pressed against the seal member 79, and the front side and both sides of the lid portion main body 71 and the covering portion 72 are connected in an airtight manner.

  Further, the covering portion 72 is formed in, for example, a plate shape, and an edge portion extending from the front side to both sides is locked to a lower portion of the flange portion 77 to cover the entire lower side of the lid portion main body 71. Further, to the covering portion 72, a downstream side of the separation portion main body 54, that is, a downstream side of each separation chamber 57, an upper end side of the communication portion 61 of each rectification portion 61 and the communication air path 73 are connected in an airtight manner. A plurality of circular connection openings 72a are formed. These connection openings 72a are formed corresponding to the number of separation chambers 57, that is, in this embodiment, four in the front-rear direction and three in the left-right width direction, for a total of twelve. Further, a connection seal member 72b that is press-contacted to the upper end portion of the flow passage portion 63 of each rectifying portion 61 is attached to the edge portion of the connection opening 72a.

  Further, the communication air passage 73 is formed in a longitudinal shape in the front-rear direction along the upper side of the distribution air passage 67. Therefore, the communication air passage 73 is configured with a distribution air passage 67 and two upper and lower layers. Further, the downstream side of all the separation chambers 57 communicates in parallel with the communication air passage 73. Further, the communication air passage 73 communicates with the suction side of the electric blower 31 by being airtightly connected to the communication port with the second dust collecting device 42 attached to the main body case 25.

  On the other hand, the dust collecting case 52 accommodates the dust (fine dust) separated by the second centrifugal separator 51, and a dust collecting case main body 81 as a dust collecting main body elongated in the front-rear direction, The dust collecting case body 81 is integrally provided with a continuous fitting portion 82 on the upper side, and a receiving portion 83 protruding in a step shape is formed at a portion where the dust collection case main body 81 and the fitting portion 82 are continuous. Yes.

  The dust collection case main body 81 is formed with an opening on the upper side, and is covered with a connecting portion 59 of the second centrifugal separation portion 51 so as to be opened and closed. In addition, a plurality of plate-like partition portions 81a are formed in the front-rear direction along the left-right width direction inside the dust collection case body 81, and a plurality of partition portions 81a are formed inside the dust collection case body 81 by the partition portions 81a. The reservoir portion 81b is partitioned in the front-rear direction. These partition portions 81a are inserted into the lower ends of the connecting projections 59a of the connecting portion 59 and are airtightly connected. Each reservoir 81b is formed so that the separation chambers 57 adjacent to each other in the left-right width direction communicate with each other, in other words, the separation chambers 57 at substantially equal distances communicate with each other from the communication opening 58e.

  The fitting portion 82 is a portion that covers the entire outer side of the separation chamber 57, and is formed to expand in the left-right width direction from the lower side to the upper side. That is, both side surface portions 82a, 82a of the fitting portion 82 are inclined so as to be separated from each other toward the upper side. Further, the upper end portions of both side surface portions 82a and 82a are positioned below both side surfaces 58c of the outer frame portion 58 in a state where the dust collecting case 52 is attached to the separation portion main body 54 of the second centrifugal separation portion 51. Further, a case claw portion 82b, which is a supported portion as a dust collecting portion locked portion that is locked by the clamps 53, 53, is directed laterally (outward) to the upper end portions of the both side surface portions 82a, 82a. Projecting. The case claw portions 82b protrude, for example, in a longitudinal direction along the horizontal direction at a substantially central portion in the front-rear direction of the side surface portion 82a.

  The receiving portion 83 is a portion that supports the lower end portion of the connecting portion 59, and the lower end portion of the connecting portion 59 is airtightly connected.

  Each clamp 53 is formed in a plate shape, and is pivotally supported on each side surface 58c of the outer frame portion 58 of the separation portion main body 54 via a rotation shaft 86 in the front-rear direction and in the horizontal direction. With respect to the shaft 86, the upper side and the lower side are configured to rotate in the left-right width direction like a seesaw. Accordingly, the clamps 53 are arranged at positions facing each other of the separation part main body 54, so that the lower side is separated from the side parts 82a (separation part main body 54) of the dust collecting case 52 and the upper side approaches the lid 55 side. In the direction in which the lid 55 is locked to the separation body 54 and the dust collecting case 52 is unlocked (hereinafter referred to as arrow A direction), or the upper side is the lid 55 side. Rotate so that the lower side is separated from the separation unit main body 54 side (each side surface portion 82a of the dust collection case 52), that is, the lid 55 is unlocked from the separation unit main body 54 and the dust collection case 52 is released. Or the like (hereinafter referred to as arrow B direction). Although only one clamp 53 is shown in FIG. 1, it is assumed that the other clamp 53 operates in line symmetry with the one clamp 53 in the left-right width direction.

  Each clamp 53 includes a knob 53a that protrudes upward, and a locking protrusion 53b that protrudes horizontally toward the back surface (back surface) of the base end of the knob 53a, that is, toward the lid 55. The upper locking portion 53c as a lid locking portion protruding below the locking protruding portion 53b, and the lower back surface, that is, the dust collecting portion protruding toward the dust collecting case 52 (separating portion main body 54) And a lower locking portion 53d as a locking portion.

  The knob portion 53a is a portion that the user picks when the clamps 53 are rotated.

  The upper locking portion 53c is a portion that is engaged with the locking claw portion 77c of the lid portion 55 and is positioned in the escape recess 77d, thereby locking the lid portion 55 with respect to the separation portion main body 54. It is formed in a substantially semicircular shape that is continuous in the longitudinal direction along the direction and protrudes downward in a sectional view.

  The lower locking portion 53d is a portion for locking the dust collecting case 52 to the separation portion main body 54 of the second centrifugal separation portion 51 by supporting the case claw portion 82b of the dust collecting case 52 from the lower side. , Which is continuous in the longitudinal direction along the front-rear direction, and protrudes substantially horizontally.

  Therefore, each clamp 53 locks the lid portion 55 to the separation portion main body 54 on the upper side and locks the dust collecting case 52 to the separation portion main body 54 on the lower side. In addition, each clamp 53 is in a state where the dust collecting case 52 is locked to the separating portion main body 54 by the lower locking portion 53d, and this lower locking portion 53d is connected to the fitting portion 82 of the dust collecting case 52. By contacting the side surface portion 82a, the rotation in the direction of the arrow B is restricted, and the upper locking portion 53c is prevented from being detached from the locking claw portion 77c. In other words, each clamp 53 locks the lid portion 55 in a state where the lid portion 55 cannot be removed from the separation portion main body 54 when the dust collecting case 52 is attached to the separation portion main body 54.

  Each clamp 53 is urged in the direction of arrow B by a torsion spring 88 as urging means.

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

  At the time of cleaning, the first dust collector 41 and the second dust collector 42 are respectively attached to the main body case 25 of the cleaner body 13 in advance. That is, first, the second dust collecting device 42 is inserted into the mounting recess 34 from the front of the main body 32 and fixed by the second attaching / detaching means. In this state, the communication air passage 73 is airtightly connected to the communication port. Further, the first dust collecting device 41 is attached on the protruding portion 33 and fixed to the main body case 25 by the first attaching / detaching means. In this state, the suction port of the first dust collector 41 is airtightly connected to the communication opening 39 of the duct portion. Therefore, the pipe portion 12 and the suction side of the electric blower 31 are connected in an airtight manner via the first dust collector 41 and the second dust collector 42.

  Then, in a state in which power can be supplied by the power supply unit, the user operates the desired setting button 22 by gripping the grip unit 21, so that the control unit drives the electric blower 31 in the set operation mode. .

  The negative pressure generated by driving the electric blower 31 is transferred to the pipe portion 12 through the communication air passage portion, the second dust collector 42, the first dust collector 41, the communication opening 39, the duct portion, and the main body suction port 40. Works. In the pipe portion 12, negative pressure acts on the hose body 16, the extension pipe 18, and the floor brush 19, and dust is sucked together with air from the tip of the floor brush 19 placed on the surface to be cleaned.

  Dust-containing air is sucked into the case body 45 of the first dust collector 41 from the main body suction port 40 via the floor brush 19, the extension pipe 18 and the hose body 16 through the duct opening 39. Flows in through. The dust-containing air that has flowed in from the suction port swirls in the circumferential direction between the case body 45 (case body 47) and the swivel part, and the coarse dust is centrifuged and gravity falls downward, and the first dust collection Collected by the device 41.

  The dust-containing air swirling the first dust collecting device 41 flows into the swirling portion from the peripheral opening through the dust collecting filter. When passing through the dust collection filter, dust finer than coarse dust in the dust-containing air is collected by the dust collection filter.

  The dust-containing air (air containing fine dust) that has passed through the swirl passes through the connecting air passage 49 and then flows into the distribution air passage 67, where the rectifying passage of each rectifying portion 61 of the second dust collector 42 The flow branches into the respective sections 64 and flows into the separation chambers 57 while being rectified by the rectifying passage sections 64.

  The dust-containing air that has flowed into the separation chamber 57 swirls in the circumferential direction along the inner peripheral surface of the separation chamber 57 at a flow velocity greater than the swirl velocity in the case body 45 of the first dust collector 41. The fine dust is centrifuged and gravity falls from the lower end of each separation chamber 57 to the dust collecting case 52 via the connecting portion 59, and the dust collecting case main body 81 of each dust collecting case 52 is stored in each reservoir 81b. To be collected. The clear air from which the fine dust has been removed passes through the through-cylinder part 63 of the rectifying part 61 and is extracted to the communication air path 73 and merges with each other.

  Then, the air merged into the communication air passage 73 is sucked into the electric blower 31 through the communication opening and the communication air passage portion, passes through the electric blower 31 and cools the electric blower 31, and then the electric blower. The exhaust air is exhausted from the exhaust gas 31 and exhausted from the exhaust hole to the outside of the main body case 25 of the cleaner body 13.

  When the cleaning is completed, the user operates the setting button 22 so that the control unit stops the electric blower 31. When a predetermined amount or more of dust has accumulated in the first dust collecting device 41 and the dust collecting case 52, the user removes the first dust collecting device 41 and the second dust collecting device 42 from the cleaner body 13, respectively. Discard the dust.

  At this time, the user operates the first attaching / detaching means to remove the first dust collecting device 41 from the main body case 25 and opens the lid body on the trash can etc., thereby collecting dust (coarse dust) collected inside. Discard.

  Further, the user removes the second dust collecting device 42 from the mounting recess 34 by operating the second attaching / detaching means in a state where the first dust collecting device 41 is detached from the main body case 25. First, the knob 53a of each clamp 53 is picked from both sides so as to approach each other against the bias of each torsion spring 88, that is, the upper side of each clamp 53 is narrowed in the left-right width direction and the lower side is left-right width. By picking it so as to open in the direction, each clamp 53 rotates in the direction of arrow A, and the upper locking portion 53c retreats to each relief recess 77d of the lid portion 55, and the lower locking portion 53d The case 52 is retracted to the side with respect to the case claw portion 82b, and the locking of the dust collecting case 52 to the separation portion main body 54 by each clamp 53 is released. When the user opens the knob 53a of each clamp 53 with the dust collecting case 52 removed from the separating portion main body 54 in this way, each clamp 53 is moved to an arrow by the urging of each torsion spring 88. By returning and rotating in the B direction, each upper locking portion 53c is locked to the locking claw portion 77c of the lid portion 55, and each clamp 53 is temporarily locked to the lid portion 55.

  Then, the dust collection case 52 removed from the separation unit main body 54 discards the dust inside the dustbin or the like, or cleans the inside of the dust collection case 52 with water or the like. In addition, each clamp 53 has a space S at a position below the outer frame portion 58 of the separation portion main body 54 by removing the dust collecting case 52 from the separation portion main body 54. Is possible. Therefore, when cleaning each separation chamber 57, the user pushes the lower side of each clamp 53 from both sides, that is, turns the lower side of each clamp 53 in the left-right width direction and opens the upper side in the left-right width direction. By moving, each clamp 53 rotates in the direction of arrow B, and the upper locking portion 53c gets over the locking claw portion 77c outward, and the locking of the lid portion 55 with respect to the separating portion main body 54 is released. The

  Thereafter, the user removes the lid portion 55 from the separation portion main body 54 (FIG. 6A), further removes each rectification portion 61 from each separation chamber 57 (FIG. 6B), and each rectification portion 61. The dust adhered to each separation chamber 57 is removed and maintained. In addition, since the clear air always flows through the communication air passage 73, the lid 55 can be cleaned by washing with water or the like as needed, although dust hardly adheres to it.

  The second dust collector 42 that has been cleaned is reassembled. In this assembly, first, the lid portion 55 is attached to the separation portion main body 54 to form the second centrifugal separation portion 51, and the dust collection is performed on the separation portion main body 54 of the second centrifugal separation portion 51. A case 52 is attached.

  The user covers the upper part of the separation part main body 54 with the rectifying part 61 attached to the upper side of each separation chamber 57 and puts the lid part 55 on the grip part 53a of each clamp 53 against each other against the bias of the torsion spring 88. By picking the clamps 53 close to each other and rotating the clamps 53 in the direction of the arrow A, the upper locking portions 53c of the clamps 53 disengage the locking claws 77c on both sides of the lid portion 55 toward the escape recesses 77d and 77d. , The upper locking portions 53c are engaged with the respective locking claws 77c, and the lid portion 55 is locked and fixed to the separation portion main body 54, whereby the second centrifugal separation portion 51 is formed. At this time, the seal member 79 of the lid part 55 is pressed against the upper part of the outer frame part 58 of the separation part main body 54, and a distribution air passage 67 is defined between the separation part main body 54 and the lid part 55, and The communication cylinder portion 63 of the rectification portion 61 is pressed against the connection seal member 72b and is airtightly connected to the connection opening 72a, and communicates with the distribution air passage 67, respectively.

  In this state, the user rotates each clamp 53 in the direction of arrow A so that the upper locking portions 53c and 53c are moved to the escape recesses 77d and 77d by further picking the knobs 53a and 53a from both sides. While maintaining the state, the lower side of the second centrifuge part 51 is inserted from above into the dust collecting case 52, and the knobs 53a and 53a are opened at the position where the connecting part 59 is brought into contact with the receiving part 83. As a result, each clamp 53 is returned and rotated in the direction of arrow B by the urging of each torsion spring 88, and the lower locking portion 53d of each clamp 53 is inserted below the case claw portion 82b of the dust collecting case 52. The lever dust collecting case 52 is locked and fixed to the separation portion main body 54 of the second centrifugal separation portion 51. At this time, the peripheral portion of the connecting portion 59 and the receiving portion 83 are connected in an airtight manner, and the connecting protrusions 59a of the connecting portion 59 and the partition portions 81a of the dust collecting case 52 are connected in an airtight manner. Each separation chamber 57 is airtightly connected to the reservoir portion 81b of the dust collection case main body 81 of the dust collection case 52 via the connecting portion 59.

  The second dust collector 42 assembled in this way can be reused by being attached to the attachment recess 34.

  According to the embodiment described above, the separation part main body 54 and the lid part 55 of the second centrifugal separation part 51 are locked on the upper side of each clamp 53, and the second centrifugal separation part is provided on the lower side of these clamps 53. By locking a dust collecting case 52 separate from 51 to the separating portion main body 54, for example, a locking means for locking the separating portion main body and the lid portion, and the separating portion main body and the dust collecting case are locked. Compared to the case where the locking means is provided separately, the space for the locking means is not increased and the number of parts does not increase, and the second dust collector 42 can be reduced in size and cost. The dust collected in the dust collecting case 52 can be discarded by removing the dust collecting case 52 from the separating unit main body 54, or the lid 55 can be removed from the separating unit main body 54 and removed from the upper side of the separating unit main body 54. Can be opened and the inside of each separation chamber 57 can be cared for. It can be secured.

  In addition, each clamp 53 is locked in a state in which the lid 55 cannot be removed from the separation unit main body 54 when the dust collecting case 52 is attached to the separation unit main body 54, so that the user accidentally holds the clamp 53. It is possible to reliably prevent the lid portion 55 from being detached from the separation portion main body 54 by operating.

  Specifically, each clamp 53 is in contact with the side surface portion 82a of the dust collecting case 52 locked to the separation portion main body 54, thereby releasing the lock of the lid portion 55 with respect to the separation portion main body 54 (arrow B). By restricting rotation in the direction), the lid 55 can be removed from the separation unit main body 54 when the dust collection case 52 is attached to the separation unit main body 54 by effectively using the dust collection case 52. It is possible to easily form a configuration that locks in a non-existing state.

  Further, by disposing each clamp 53 at a position where the separating portion main body 54 faces each other, the operation in the direction in which one clamp 53 releases the locking of the lid portion 55 to the separating portion main body 54 and the other clamp 53 The operation in the direction of releasing the locking of the lid 55 to the separation unit main body 54 is the operation in the opposite direction in the left-right width direction. Therefore, when one clamp 53 tries to rotate in the direction in which the locking of the lid portion 55 to the separation portion main body 54 is released, the lower locking portion 53d of the one clamp 53 moves toward the other clamp 53 side. When the dust collecting case 52 is pushed, it comes into contact with the lower locking portion 53d of the other clamp 53, and the rotation of the other clamp 53 is more reliably restricted. That is, since the mutual clamps 53 regulate the rotation of the mutual clamps 53 in the direction of releasing the locking of the lid part 55 to the separation part main body 54 through the dust collecting case 52, the user mistakes. Thus, it is possible to more reliably prevent the lid 55 from being detached from the separating portion main body 54 by operating the clamp 53.

  Each clamp 53 is temporarily locked to the lid portion 55 in a state where the dust collection case 52 is removed from the separation portion main body 54, so that the lid portion 55 is removed after the dust collection case 52 is removed from the separation portion main body 54. Can be prevented from being easily released by mistake.

  In addition, in the said one Embodiment, although the vacuum cleaner 11 shall provide the 1st dust collector 41 in the upstream of the 2nd dust collector 42, if the 2nd dust collector 42 can fully remove dust, The first dust collector 41 is not an essential component.

  Moreover, although one Embodiment of this invention was described, this Embodiment is shown as an example and is not intending limiting the range of 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
25 Main unit case
31 Electric blower
42 Second dust collector as dust collector
51 Second centrifuge as centrifuge
52 Dust collection case as dust reservoir
53 Clamp as locking means
54 Separation body
55 Lid

Claims (5)

A body case,
An electric blower housed in the body case;
A dust collecting device detachably provided on the main body case;
The dust collector is
A separation unit main body that rotates dust-containing air sucked into the interior by driving the electric blower and centrifuges the dust, and is provided on one side of the separation unit main body, and is attached to and detached from the separation unit main body A centrifuge part having a lid part that opens and closes one direction side of the separation part body by attaching and detaching,
Separated from the centrifuge unit, provided on the other direction side different from the one direction side of the separation unit main body, detachably connected to the other direction side of the separation unit main body, and separated by the centrifuge unit A dust reservoir for storing the generated dust,
Locking means provided on the separating portion main body for locking the separating portion main body and the lid portion on the one direction side and for locking the separating portion main body and the dust reservoir portion on the other direction side. A vacuum cleaner characterized by comprising The electric vacuum cleaner according to claim 1, wherein the locking means locks the lid portion in a state in which the lid portion cannot be removed from the separation portion main body in a state where the dust storage portion is attached to the separation portion main body. The locking means is rotatably provided on the separation unit main body, and rotation in a direction in which the lid unit is unlocked with respect to the separation unit main body is restricted by a dust reservoir locked to the separation unit main body. The electric vacuum cleaner according to claim 2, wherein The electric vacuum cleaner according to claim 3, wherein the locking means are arranged at positions of the separating portion main body facing each other. The electric vacuum cleaner according to any one of claims 1 to 4, wherein the locking means is temporarily locked to the lid in a state where the dust reservoir is removed from the separation unit main body.

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