JP2011177295A - Dust separating/collecting container and vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust separating/collecting container for securely capturing once-collected dust while centrifuging the dust by a swirling flow within a cylindrical container body and collecting the centrifuged dust at the same time, and a vacuum cleaner. <P>SOLUTION: The dust separating/collecting container 7 includes: the bottomed cylindrical container body 33; a suction tube 34 connected to the container body 33 for generating the swirling flow F along the inner periphery of the container body 33; a discharge tube 35 displaced to a position closer to one end side of the container body 33 than the suction tube 34 and connected to the container body; a partition wall 37 disposed between the suction tube 34 and the discharge tube 35 and having an opening 37a disposed approximately at the center of the container body 33; and a separation wall 41 disposed closer to the other end 33b side of the container body 33 than a connection portion of the suction tube 34, having a gap 39 formed relative to the inner peripheral surface of the container body 33, and also having an opening 41a disposed outside the center line C of the container body 33. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a centrifugal separation type dust separation container and a vacuum cleaner provided with a cylindrical container body and a suction pipe that generates a swirling flow along the inner periphery of the container body.

  2. Description of the Related Art Conventionally, a centrifugal vacuum cleaner including a cylindrical container body and a suction pipe that generates a swirling flow along the inner periphery of the container body is known. A centrifugal vacuum cleaner sucks dust together with air, and centrifugally separates air and dust by a swirling flow generated in the container body to accumulate the dust in the container body (see, for example, Patent Document 1). ). The air from which the dust has been separated is exhausted from the central portion of the swirl vortex, that is, the portion where the flow velocity is relatively low.

Japanese Patent Laid-Open No. 9-155239

  Conventional vacuum cleaners, in particular vacuum cleaners equipped with a dust separating and collecting container that simultaneously performs centrifugal separation by swirl flow and accumulation of centrifuged dust in a cylindrical container main body, dust is centrifuged. There is no member that clearly separates the portion (space) and the portion (space) where dust is accumulated. For this reason, in the conventional vacuum cleaner, the accumulated dust may flow back to a portion (space) where the dust is centrifuged.

  In addition, the vacuum cleaner described in Patent Document 1 includes a container body having a step and a partition plate arranged with a gap in the step portion, and a separation part from which dust is separated and dust are accumulated. Separates the dust collection chamber. However, the vacuum cleaner described in Patent Document 1 has a vent hole that returns air from the dust collection chamber to the separation unit. The flow of air through the vent hole causes fine dust with a small mass to flow backward from the dust collection chamber to the separation section. In addition, this air flow linearly flows from the dust collection chamber to the separation portion through the central portion of the container body where the flow velocity decreases, and is exhausted from the container body.

  As described above, the conventional vacuum cleaner has a problem that the dust flows back into the separation chamber, and further, the dust is discharged from the dust separation container by exhaust.

  Therefore, the present invention provides a dust separation dust collecting container and an electric device that reliably collects dust once accumulated while simultaneously performing centrifugal separation by swirl flow and accumulation of the centrifugally separated dust in a cylindrical container body. Suggest a vacuum cleaner.

  In order to solve the above problems, a dust separating and collecting container according to the present invention includes a bottomed cylindrical container body, a suction pipe connected to the container body and generating a swirling flow along the inner periphery of the container body, A discharge pipe that is biased and connected to one end side of the container body with respect to the suction pipe, and a first opening that is provided between the suction pipe and the discharge pipe and is disposed at a substantially center of the container body. Between the partition wall and the connection portion of the suction pipe and the other end side of the container main body to form a gap between the inner peripheral surface of the container main body and outside the center of the container main body And a separation wall having a second opening arranged.

  The vacuum cleaner according to the present invention includes the dust separation and collection container, and a cleaner body on which the dust separation and collection container is attached in a detachable manner.

  The present invention relates to a dust separation dust collecting container and a vacuum cleaner that reliably collects dust once accumulated while simultaneously performing centrifugal separation by swirl flow and accumulation of the centrifugally separated dust in a cylindrical container body Can be proposed.

The perspective view which showed the external appearance of the vacuum cleaner which concerns on this invention. Sectional drawing which showed typically the dust separation dust collection container which concerns on embodiment of this invention. The perspective view which showed the other example of the dust separation dust collection container which concerns on embodiment of this invention. The perspective sectional view showing other examples of the dust separation dust collection container concerning the embodiment of the present invention. Sectional drawing which showed the other example of the dust separation dust collection container which concerns on embodiment of this invention. The perspective sectional view showing other examples of the dust separation dust collection container concerning the embodiment of the present invention.

  Embodiments of a dust separation dust collecting container and a vacuum cleaner according to the present invention will be described with reference to FIGS.

FIG. 1 is a perspective view showing an appearance of a vacuum cleaner according to the present invention.
As shown in FIG. 1, the vacuum cleaner 1 is a so-called canister-type vacuum cleaner. The vacuum cleaner 1 includes a cleaner body 2 disposed on a surface to be cleaned, and a pipe portion 3 detachably connected to the cleaner body 2.

  The vacuum cleaner main body 2 includes a main body case 5, a pair of wheels 6 pivotally supported on both sides of the main body case 5, and a dust separation and dust collection unit 7 (a dust separation and dust collection container) detachably attached to the main body case 5. ), An electric blower 8 communicated with the dust separation and dust collection unit 7, a main body control unit 9 that controls driving of the electric blower 8, and a power cord 11 that guides electric power to the electric blower 8.

The main body case 5 has a main body connection port 12 communicated with the dust separating and collecting part 7.
The dust separating and collecting unit 7 separates and collects dust from air (dust-containing air) containing dust sucked into the vacuum cleaner 1 by the negative pressure generated by the electric blower 8.
The wheel 6 is a large-diameter traveling wheel for traveling of the cleaner body 2.

  The main body control unit 9 has a plurality of preset operation modes. The main body control unit 9 drives the electric blower 8 by selectively selecting an arbitrary operation mode from a plurality of operation modes in response to an operation signal input from the pipe unit 3. Each operation mode is set by making the input value of the electric blower 8 different from each other while being associated with the operation signal input from the pipe section 3.

The power cord 11 includes a power plug 14 at the free end.
The pipe portion 3 sucks dust-containing air from the surface to be cleaned and guides it to the cleaner body 2 by the negative pressure acting from the cleaner body 2 as the electric blower 8 is operated. The pipe section 3 includes a connection pipe 19 that is detachably connected to the main body connection port 12 of the vacuum cleaner body 2, a dust collection hose 21 that communicates with the connection pipe 19, and a hand control pipe that communicates with the dust collection hose 21. 22, a gripping portion 23 provided protruding from the hand operation tube 22, an operation portion 24 provided on the gripping portion 23, an extension tube 25 detachably connected to the hand operation tube 22, and an extension A suction port body 26 that is detachably connected to and communicated with the pipe 25.

  The dust collecting hose 21 is formed in an elongated substantially cylindrical shape having flexibility. One end of the dust collection hose 21 is connected to the connection pipe 19. The dust collecting hose 21 communicates with the inside of the cleaner body 2 through the connection pipe 19.

  One end of the hand operation tube 22 is provided at the other end of the dust collecting hose 21. The hand operating tube 22 is communicated with the inside of the cleaner body 2 via the connecting tube 19 and the dust collecting hose 21.

  The grip part 23 is operated by the user of the vacuum cleaner 1 to operate the vacuum cleaner 1. The grip portion 23 is provided so as to protrude from the other end portion of the hand operation tube 22, and is bent toward the one end portion of the hand operation tube 22.

  The operation unit 24 includes a switch corresponding to each operation mode. Specifically, the operation unit 24 includes a stop switch 24 a that receives an operation stop operation of the electric blower 8 and an activation switch 24 b that receives an operation start operation of the electric blower 8. The start switch 24b may include a weak operation switch (not shown), a medium operation switch (not shown), and a strong operation switch (not shown). The user of the vacuum cleaner 1 can alternatively select the operation mode of the electric blower 8 by operating the operation unit 24.

  The extension tube 25 is formed in an elongated and substantially cylindrical shape that can be expanded and contracted. The extension tube 25 has a telescopic structure by overlapping a plurality of cylindrical bodies. One end of the extension tube 25 is detachably connected to the other end of the hand operation tube 22. The extension pipe 25 communicates with the inside of the cleaner body 2 through the connection pipe 19, the hand operation pipe 22 and the dust collection hose 21.

  The suction port body 26 is detachably connected to one end of the extension pipe 25. In addition, the suction port body 26 is configured to be able to travel on a surface to be cleaned such as a wooden floor or a carpet, and has a suction port 28 on the bottom surface facing the surface to be cleaned in the traveling state. Further, the suction port body 26 includes a rotary cleaning body 29 that is pivotally supported by the suction port body 26 and disposed at the suction port 28, and an electric motor 31 that drives the rotary cleaning body 29 to rotate. The suction port body 26 is communicated with the inside of the cleaner body 2 through the extension pipe 25, the hand operation pipe 22 and the dust collection hose 21.

  When the start switch 24 b is operated, the electric vacuum cleaner 1 drives the electric blower 8 to apply a negative pressure (suction negative pressure) to the inside of the cleaner main body 2. This negative pressure acts on the suction port 28 of the suction port body 26 from the main body connection port 12 through the dust collecting hose 21, the hand operating tube 22 and the extension tube 25. Due to the negative pressure acting on the suction port 28, the vacuum cleaner 1 sucks dust collected on the surface to be cleaned together with air from the suction port 28 to clean the surface to be cleaned. The dust-containing air sucked into the suction port 28 is separated into air and dust by the dust separating and collecting unit 7 accommodated in the cleaner body 2. The separated dust is collected by the dust separation and collection unit 7. On the other hand, the separated air passes through the dust separating and collecting part 7 and is sucked into the electric blower 8 and exhausted from the cleaner body 2.

  FIG. 2 is a cross-sectional view schematically showing a dust separation container according to an embodiment of the present invention.

  As shown in FIG. 2, the dust separating and collecting part 7 (dust separating and collecting container) of the vacuum cleaner 1 is connected to the bottomed cylindrical container main body 33 and the container main body 33 so as to be connected to the inner periphery of the container main body 33. A suction pipe 34 that generates a swirling flow F (solid arrow F in FIG. 2), a discharge pipe 35 that is biased and connected to the one end 33a side of the container body 33 with respect to the suction pipe 34, and a suction pipe 34. A partition wall 37 provided between the discharge pipe 35 and having an opening 37a (first opening) disposed substantially at the center of the container body 33, and a flow path between the opening 37a of the partition wall 37 and the discharge pipe 35 A gap 39 is formed between the pleated filter portion 38 disposed on the other end 33 b and the other end 33 b side of the container body 33 with respect to the connecting portion of the suction pipe 34, and the container body 33. The opening 41a (second opening) arranged outside the center of the ) A, a separation wall 41 having a.

  The dust separating and collecting part 7 may be arranged in the vertical direction or in the horizontal direction with respect to the center line C of the cylindrical container main body 33 in the state where it is mounted on the cleaner body 2. It may be arranged at any angle.

  The container main body 33 includes an exhaust air passage 42 partitioned between the partition wall 37 and the end surface on the one end 33a side, a separation portion 43 partitioned between the partition wall 37 and the separation wall 41, a separation wall 41, And a dust collection chamber 44 partitioned between the other end 33b side end surface. The other end 33 b of the container main body 33 includes a lid body 46 that can be freely opened and closed, and is configured so that dust accumulated in the dust collecting chamber 44 can be discarded outside the container main body 33.

  The suction pipe 34 communicates the main body connection port 12 of the cleaner main body 2 and the separation portion 43 of the container main body 33 and has a channel inclined with respect to the center line C (center of the container main body 33) of the container main body 33. Have. This flow path generates a flow directed along the inner peripheral surface of the container body 33. That is, when the electric blower 8 is driven and a negative pressure is applied to the container main body 33, the dust-containing air sucked into the pipe portion 3 flows into the container main body 33 from the suction pipe 34 and generates a swirling flow F.

  The discharge pipe 35 makes the separation part 43 of the container main body 33 communicate with the suction port (not shown) of the electric blower 8.

  Note that the suction pipe 34 and the discharge pipe 35 may be formed integrally with the container body 33.

  The partition wall 37 partitions both portions so that the dust-containing air flowing into the separation portion 43 does not flow directly into the exhaust air passage 42 and is held by the container body 33. The opening 37 a is disposed in the vicinity of the center of the container body 33.

  The partition wall 37 includes an inner cylinder 48 that extends in the direction of the center line C of the container body 33. The inner cylinder 48 extends from the partition wall 37 to the separation wall 41 and holds the separation wall 41 in the container body 33. Moreover, the inner cylinder 48 has the opening 48a (1st opening) connected to the opening 37a via the cylinder internal space. The opening 48a is closed by a mesh-like filtration member 51 (third filtration part). When the swirl | vortex flow F of the separation part 43 is not fully developed, such as the time immediately after the drive start of the electric blower 8 or a stop, the filtration member 51, dust flows into the exhaust air path 42 from the separation part 43. prevent.

  The pleated filter unit 38 is provided in the exhaust air passage 42, and when the swirling flow F of the separation unit 43 is not sufficiently developed, such as immediately after the start of driving of the electric blower 8 or just after stopping, the filter member 51 is Fine particulate fine dust that can be transmitted is captured, and the fine dust is prevented from being sucked into the electric blower 8.

The separation wall 41 allows the separation part 43 and the dust collection chamber 44 to communicate with each other through a gap 39 between the container body 33 and the separation wall 41.
The gap 39 is formed over the entire inner circumference of the container body 33.

  The opening 41 a is disposed closer to the center of the container body 33 than the gap 39, and the gap 39 between the container body 33 and the separation wall 41 and the dust collection chamber 44 (first space) on the other end 33 b side of the container body 33. To communicate. Further, the opening 41a is closed by the filtering member 53 (filtering unit). The filter member 53 may be coarse so that fibrous dust such as lint and cotton dust that has flowed into the dust collecting chamber 44 does not return to the separation portion 43. The filter member 53 is provided on the surface of the separation wall 41 that faces the dust collection chamber 44 on the other end 33 b side of the container body 33.

  The opening 41a may be an opening group including a plurality of openings arranged concentrically and at equal intervals with respect to the center of the container body 33. Further, the opening 41a has a suitably small diameter (for example, a diameter of 5 mm) so that fibrous dust such as lint and cotton that has flowed into the dust collecting chamber 44 without being blocked by the filtering member 53 does not return to the separation portion 43. An opening group (filtering portion) composed of a plurality of openings having the following) may be used.

  The gap 39 and the opening 41a are not limited to being formed or arranged in an annular shape around the entire center of the container body 33. Specifically, the gap 39 may be formed in an arc shape along the inner periphery of the container body 33. Further, the opening 41 a may be arranged such that a part of the circumference is opened in an arc shape while being arranged closer to the center of the container body 33 than the gap 39.

  The dust separating and collecting unit 7 configured as described above applies a negative pressure to the exhaust air passage 42 via the discharge pipe 35 when the electric blower 8 starts to be driven. The negative pressure of the exhaust air passage 42 acts on the separation portion 43 through the opening 37a. Furthermore, the negative pressure of the separation part 43 acts on the pipe part 3 via the suction pipe 34. Then, the dust-containing air sucked into the pipe part 3 traces the pipe part 3 in the reverse direction and is guided to the dust separation and dust collection part 7.

  The dust-containing air guided to the dust separating and collecting part 7 flows toward the inner peripheral surface of the container main body 33 in the separating part 43 by the suction pipe 34 and generates a swirling flow F. The swirl flow F causes the dust-containing air to be separated into air and dust. The separated dust has an extremely large specific gravity compared to air, and turns along the inner peripheral surface of the container body 33. On the other hand, a part of the separated air reaches the exhaust air passage 42 from the opening 48a located in the vicinity of the center of the vortex of the swirling flow F, through the internal space of the inner cylinder 48 and the opening 37a (in FIG. 2, a solid arrow Fe ). The remainder of the separated air and the separated dust pass through the gap 39 while swirling along the inner peripheral surface of the container body 33 and flow into the dust collecting chamber 44.

  In the dust collection chamber 44, the flow velocity decreases and the pressure recovers toward the center of the container body 33, so that the air in the dust collection chamber 44 is separated from the container body 33 from the opening 41 a provided on the side surface of the separation wall 41. Blow into the gap 39 with the wall 41. On the other hand, the fibrous dust contained in the dust collects while swirling in the separation portion 43 and the dust collecting chamber 44, and cannot pass through the opening 41a of the separation wall 41 or the filter member 53, and is trapped around it. Is done.

  Part of the air blown into the gap 39 from the opening 41a is entrained in the swirling flow F and generates a circulating flow Fc that flows into the dust collecting chamber 44 again. The circulating flow Fc gradually increases the density by gradually pressing and solidifying the fibrous dust trapped in the opening 41a of the separation wall 41 or the filtration member 53. The air blown into the gap 39 from the opening 41 a contains fine particulate fine dust that can pass through the opening 41 a and the filtering member 53. The circulating flow Fc collects the fine dust from the gap 39. Pour into the dust chamber 44 again. The fine dust that has flowed into the dust collecting chamber 44 again is captured by the fibrous dust solidified by the opening 41 a of the separation wall 41 or the filtering member 53.

Next, another example of the dust separating and collecting unit 7 of the vacuum cleaner 1 will be described.
FIG. 3 is a perspective view showing another example of the dust separating and collecting container according to the embodiment of the present invention.

FIG. 4 is a perspective cross-sectional view showing another example of the dust separating and collecting container according to the embodiment of the present invention.
FIG. 5 is a cross-sectional view showing another example of the dust separating and collecting container according to the embodiment of the present invention.

  In the dust separation / collection part 7A of the vacuum cleaner 1 shown in FIGS. 3 to 5, the same components as those in the dust separation / collection part 7 are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIGS. 3 to 5, the dust separating and collecting part 7A (dust separating and collecting container) of the vacuum cleaner 1 is inhaled with the dust collecting chamber 44 (first space) on the other end 33b side of the container body 33A. A separation wall 41A having a thickness separating the separation portion 43 (second space) where the pipe 34 is located is provided. Further, the dust separating and collecting part 7A includes a protruding portion 55 provided substantially at the center of the surface of the separating wall 41A that faces the other end 33b of the container body 33A.

  The separation wall 41 </ b> A is not a simple plate shape, but has a wall surface having a thickness in the direction of the center line C of the container body 33 </ b> A, and forms a gap 39 </ b> A that separates the separation portion 43 and the dust collection chamber 44. The opening 41a of the separation wall 41A communicates with the gap 39 from the opening 41b through a space formed in the separation wall 41A. The opening 41b is opened to the side surface 41c that constitutes the thickness of the separation wall 41A. The side surface 41c is a surface facing the inner peripheral surface of the container body 33A.

  The container body 33A includes a stepped portion 57 in which the other end 33b is discontinuously expanded in diameter from the vicinity of the separation wall 41A.

  The dust separating and collecting part 7A prevents the dust from reaching the separating part 43 even if the swirling flow F is blown back into the gap 39A by the thickness of the separating wall 41A separating the separating part 43 and the dust collecting chamber 44 and the step part 57. Can be.

  When the fibrous dust collected by the filtering member 53 of the separation wall 41A is compressed in an annular shape by the air flow passing through the opening 41a, the protruding portion 55 is positioned at the center portion of the protruding portion 55 and the dust stacking direction. Is a guide for guiding the container toward the other end 33b of the container body 33A. The protrusion 55 extends from the separation wall 41A so as to reach the lid 46 of the container body 33A.

  Further, the projecting portion 55 is formed in a hollow truncated cone shape that is reduced in diameter toward the lid body 46 side, and has an opening 55a that communicates with the gap 39 through the internal space of the separation wall 41A and the opening 41b. The internal space of the protrusion 55 and the internal space of the inner cylinder 48 are partitioned by the inner cylinder lid 58 and are not communicated with each other. Due to the air flowing from the opening 55a through the internal space of the protruding portion 55 and the internal space of the separation wall 41A into the gap 39, the dust around the protruding portion 55 is collected near the center of the dust collecting chamber 44. Due to the flow of air passing through the opening 55a and the flow of air passing through the opening 41a, the guide effect in the dust stacking direction by the protrusion 55 is more remarkably exhibited. The opening 55a may be blocked by the filtering member 61 (second filtering portion), or fibrous dust such as lint and cotton dust that has flowed into the dust collecting chamber 44 without being blocked by the filtering member 61 is separated. You may comprise by the opening group (2nd filtration part) which consists of several opening which has a suitably small diameter (for example, diameter 5mm or less) so that it may not return to 43.

FIG. 6 is a perspective sectional view showing another example of the dust separation and dust collection container according to the embodiment of the present invention.
In the dust separation / collection part 7B of the vacuum cleaner 1 shown in FIG. 6, the same components as those in the dust separation / collection part 7A are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIG. 6, the dust separating and collecting part 7B (dust separating and collecting container) of the vacuum cleaner 1 is provided around the protruding part 55B and extends in the radial direction of the container body 33A. Is provided. The dust trapping wall 62 is formed over the height of the frustoconical protrusion 55B. The dust trapping wall 62 forms a portion with a lower flow velocity around the protrusion 55 </ b> B inside the dust collection chamber 44. A plurality of dust trapping walls 62 may be provided radially around the protrusion 55B.

  With such a configuration, the dust separating and collecting parts 7, 7 </ b> A, and 7 </ b> B according to the present embodiment have the separation wall 41, between the separating part 43 where the dust is centrifuged and the dust collecting chamber 44 where the dust is accumulated. 41A is provided, and the air in the dust collection chamber 44 is discharged to the gap 39 between the container body 33 and the separation wall 41 via the opening 41a of the separation walls 41 and 41A or the filtering member 53, and thus accumulated in the dust collection chamber 44. The dust does not flow back to the separation part 43.

  In addition, the dust separating and collecting parts 7, 7 </ b> A, 7 </ b> B according to the present embodiment can return fine dust flowing into the gap 39 from the opening 41 a to the dust collecting chamber 44 again by the circulation flow Fc. Further, the fine dust returned to the dust collecting chamber 44 can be captured by the fibrous dust pressed and solidified on the separation walls 41 and 41A.

  Furthermore, since the dust separating and collecting parts 7, 7A and 7B according to the present embodiment flow the air flowing into the gap 39 from the opening 41a into the dust collecting chamber 44 again by the circulating flow Fc, this air is a container in which the flow velocity decreases. The central portions of the main bodies 33 and 33A do not flow linearly from the dust collection chamber 44 to the separation portion 43.

  Furthermore, the dust separating and collecting parts 7A and 7B according to the present embodiment can capture and compact a larger amount of fibrous dust by the space near the opening 41a and the opening 55a. The dust separating and collecting portions 7A and 7B can capture a larger amount of fine dust contained in the circulation flow Fc by increasing the amount of the pressed fibrous dust.

  Further, when the dust separating and collecting parts 7A and 7B discard the dust accumulated in the dust collecting chamber 44, when the lid 46 of the container main body 33A is opened, the dust solidified around the protruding part 55 is substantially reduced. Easy to dispose of in a lump.

  Furthermore, since the dust separation and collection unit 7B according to the present embodiment encourages the stay of fibrous dust in the portion where the flow velocity is reduced near the dust trapping wall 62, it captures and pushes a larger amount of fibrous dust. Can be hardened. Further, the dust separating and collecting part 7B can capture a very large amount of fine dust contained in the circulation flow Fc by increasing the amount of the pressed fibrous dust.

  Therefore, according to the vacuum cleaner 1 and the dust separating and collecting parts 7, 7 </ b> A, 7 </ b> B according to the present embodiment, centrifugal separation and centrifugal separation of the swirling flow F in the cylindrical container bodies 33, 33 </ b> A are performed. Dust once accumulated can be reliably collected while accumulating at the same time.

  The vacuum cleaner according to the present invention is not limited to the canister type vacuum cleaner 1, but may be an upright type, a stick type, or a handy type vacuum cleaner.

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner 2 Vacuum cleaner main body 3 Pipe part 5 Main body case 6 Wheel 7, 7A, 7B Dust separation dust collection part 8 Electric blower 9 Main body control part 11 Power cord 12 Main body connection port 14 Power plug 19 Connection pipe 21 Dust collection hose 22 operation tube 23 gripping portion 24 operation portion 24a stop switch 24b start switch 25 extension tube 26 suction port body 28 suction port 29 rotary cleaning body 31 motor 33, 33A container main body 33a one end 33b other end 34 suction tube 35 discharge tube 37 partition Wall 37a Opening 38 Pleated filter part 39, 39A Clearance 41, 41A Separation wall 41a, 41b Opening 41c Side face 42 Exhaust air passage 43 Separating part 44 Dust collection chamber 46 Lid 48 Inner cylinder 48a Opening 51 Filtration member 53 Filtration member 55, 55B Projection 55a Opening 56 Rib 57 Stepped portion 58 Inner cylinder lid 61 Filtration member 62 Dust trapping wall

Claims (14)

A bottomed cylindrical container body;
A suction pipe connected to the container body and generating a swirling flow along the inner periphery of the container body;
A discharge pipe connected biased to one end side of the container body rather than the suction pipe; and
A partition wall provided between the suction pipe and the discharge pipe and having a first opening disposed substantially at the center of the container body;
A second opening disposed on the other end side of the container body with respect to the connection portion of the suction pipe to form a gap with the inner peripheral surface of the container body and disposed outside the center of the container body. And a separating wall having a dust separating dust collecting container. 2. The dust separating and collecting container according to claim 1, wherein the second opening communicates a gap between the container main body and the separation wall and a first space on the other end side of the container main body. The dust separating and collecting container according to claim 1, further comprising a filtration unit that closes the second opening. The dust separating and collecting container according to claim 3, wherein the filtering part is provided on a surface of the separating wall that faces the first space on the other end side of the container main body. 5. The separation wall according to claim 1, wherein the separation wall has a thickness separating the first space on the other end side of the container body and the second space where the suction pipe is located. 6. Dust separation container. The dust separation and dust collection container according to any one of claims 1 to 5, wherein the gap is formed over the entire inner circumference of the container body. The dust separation dust collecting container according to any one of claims 1 to 6, wherein the second opening includes a plurality of openings arranged concentrically and equidistantly with respect to the center of the container main body. . 8. The dust separation and dust collection according to claim 1, further comprising a protrusion provided at a substantially center of a surface of the separation wall directed to the other end side of the container body. container. The dust separating dust collecting container according to any one of claims 1 to 8, wherein the protruding portion has a third opening communicated with a first space where the suction pipe is located. The dust separation dust collecting container according to claim 9, further comprising a second filtration part that closes the third opening. 11. The dust separating and collecting container according to claim 8, further comprising a dust capturing wall provided around the protruding portion and extending in a radial direction of the container main body. The dust container according to any one of claims 1 to 11, wherein the container body includes a stepped portion in which the other end side is discontinuously expanded from the vicinity of the separation wall. . The dust separating and collecting container according to any one of claims 1 to 12, further comprising a third filtration portion that closes the first opening. A dust separating and collecting container according to any one of claims 1 to 13,
A vacuum cleaner comprising: a vacuum cleaner main body on which the dust separation and dust collection container is mounted in a removable manner.

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