CN110236448B

CN110236448B - Dust collecting device and electric dust collector with same

Info

Publication number: CN110236448B
Application number: CN201910133681.1A
Authority: CN
Inventors: 太田博司
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2018-03-08
Filing date: 2019-02-22
Publication date: 2021-10-12
Anticipated expiration: 2039-02-22
Also published as: CN110236448A

Abstract

The invention provides a compact and easy-to-operate dust collecting device. The dust collecting device is provided with: a dirt cup having a bottom and a mounting opening, and a centrifugal separation unit mounted at the mounting opening of the dirt cup, the centrifugal separation unit comprising: a first centrifugal separation section of a cylindrical shape that separates first dust in air from the air; and a second centrifugal separation part disposed around the first centrifugal separation part and including a plurality of centrifugal separation cylinders for separating second dust smaller than the first dust from the air passing through the first centrifugal separation part, wherein the dust cup includes a first dust collecting chamber capable of collecting the first dust around the first centrifugal separation part, and the centrifugal separation unit includes a second dust collecting chamber capable of collecting the second dust sent from the plurality of centrifugal separation cylinders of the second centrifugal separation part.

Description

Dust collecting device and electric dust collector with same

Technical Field

The present invention relates to a dust collecting device and an electric vacuum cleaner equipped with the same.

Background

As a dust collecting device of a conventional electric vacuum cleaner, for example, patent document 1 proposes a cyclone type dust collecting device having the following configuration.

The cyclone dust collector comprises: a first cylindrical centrifugal separation section that separates first dust in air; a second cylindrical centrifugal separation section which communicates with the first cylindrical centrifugal separation section and separates second dust smaller than the first dust from the air having passed through the first cylindrical centrifugal separation section; and a dust collecting container for collecting the first and second dusts, wherein the first dust is collected at the center of the dust collecting container, and the second dust is separated and collected at the outer periphery of the dust collecting container.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2016-043141

Disclosure of Invention

Technical problem to be solved by the invention

The cyclone dust collector disclosed in patent document 1 is configured to collect the first dust on the center side of the dust collection container and separate and collect the second dust on the outer peripheral side of the dust collection container, and therefore the outer peripheral portion of the dust collection container is large and difficult to handle, and the dust collection container is made compact.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a compact and easy-to-handle dust collecting device and an electric vacuum cleaner including the dust collecting device.

Means for solving the problems

According to the present invention, there is provided a dust collecting device comprising: a dust cup having a bottom and a mounting opening, and a centrifugal separation unit mounted at the mounting opening of the dust cup,

the centrifugal separation unit includes: a first centrifugal separation section of a cylindrical shape that separates first dust in air from the air; and a second centrifugal separation section which is arranged around the first centrifugal separation section and includes a plurality of centrifugal separation cylinders for separating second dust smaller than the first dust in the air having passed through the first centrifugal separation section,

the dust cup includes a first dust collecting chamber capable of collecting the first dust around the first centrifugal separation part,

the centrifugal separation unit includes a second dust collecting chamber capable of collecting the second dust sent from the plurality of centrifugal separation cylinders of the second centrifugal separation portion.

Further, according to the present invention, there is provided an electric vacuum cleaner comprising a horizontal vacuum cleaner body including the dust collecting device and a driving device having a dust collecting device mounting portion to which the dust collecting device is detachably mounted, the horizontal vacuum cleaner body being movable in a traveling direction on a floor surface,

the driving device includes: a housing constituting the dust collecting device mounting part; an electric blower provided in the housing; a power supply line that supplies electric power from an external power supply to the electric blower; a cord reel for winding the power cord in the housing in a drawable manner; and a winding start button for winding the drawn power cord by the cord reel;

the winding start button is disposed in the housing near the dust collector mounting portion, and is disposed at a position where the winding start button does not come into contact with the external environment due to the tilting of the driving device or does not reach the push-in amount of the drawn power cord to start winding even if the winding start button comes into contact with the external environment.

Effects of the invention

According to the dust collecting device of the present invention, the first dust collecting chamber for catching the first dust is provided in the dust cup and the second dust collecting chamber for catching the second dust smaller than the first dust is provided in the centrifugal separation unit, so that the dust cup is compact and easy to handle.

Further, according to the electric vacuum cleaner including the dust collecting device of the present invention, it is possible to prevent a malfunction in which the vacuum cleaner body is tilted and the winding start button hits the floor surface to wind the power cord during cleaning by the electric vacuum cleaner.

Drawings

Fig. 1 is a perspective view showing a dust collecting device according to a first embodiment of the present invention attached to a cleaner body of a driving device.

Fig. 2 is a sectional view showing an internal structure of the cleaner body of fig. 1.

Fig. 3 is a perspective view showing a state where the dust collecting device is detached from the driving device of the cleaner body of fig. 1.

Fig. 4 is a perspective view of the driving device of fig. 3 as viewed from above.

Fig. 5 is a sectional view showing a state in which the electric vacuum cleaner shown in fig. 2 is tilted.

Fig. 6 is a perspective view showing a dust collecting device according to a first embodiment of the present invention.

Fig. 7 is a sectional view showing an internal structure of the dust collecting apparatus of fig. 6.

Fig. 8 is a sectional view showing an internal structure of the dust collecting apparatus of fig. 6 with the bottom opened.

Fig. 9 is an exploded view of the dust collection device of fig. 6.

Fig. 10 is an exploded view of the centrifugal separation unit in the disassembled dust collecting apparatus of fig. 9.

Fig. 11 is an exploded view of the inner barrel and cup portion of the exploded centrifugal separation unit of fig. 10.

Fig. 12 is a perspective view showing the second centrifugal separation section and the wiping section in the disassembled centrifugal separation unit of fig. 10.

Fig. 13 is an exploded view of the second centrifugal separation section of fig. 12.

Fig. 14 is a perspective view from below showing a state in which the wiper portion is assembled to the second centrifugal separation portion of fig. 10.

Fig. 15 is a sectional view showing the structure of the second dust collecting chamber in the dust collecting device of fig. 6.

Fig. 16 is a sectional view illustrating a state in which the cup portion, the inner cylinder portion, the support plate portion, and the wiping portion are assembled in the dust collecting device shown in fig. 2.

Fig. 17 is an exploded view of the rotating portion in the exploded centrifugal separation unit of fig. 10.

Fig. 18 is a perspective view of the first gear of the exploded rotating portion of fig. 17 as viewed from below.

Fig. 19 is an explanatory view showing a state in which the first gear and the second gear are engaged with each other and rotated in the forward direction in the dust collecting device shown in fig. 2 in fig. 19 (a), and a state in which the first gear is rotated in the reverse direction with respect to the second gear in fig. 19 (B).

Detailed Description

(first embodiment)

Fig. 1 is a perspective view showing a cleaner body in which a dust collecting apparatus according to a first embodiment of the present invention is mounted to a driving apparatus, and fig. 2 is a sectional view showing an internal structure of the cleaner body of fig. 1. Fig. 3 is a perspective view showing a state where the dust collecting device is removed from the driving device of the cleaner body of fig. 1, fig. 4 is a perspective view of the driving device of fig. 3 as viewed from above, and fig. 5 is a sectional view showing a state where the electric vacuum cleaner shown in fig. 2 is tilted. In fig. 1 and 3, the arrow X direction represents the front-rear direction, the arrow Y direction represents the left-right direction, and the arrow Z direction represents the up-down direction.

As shown in fig. 1 to 4, a dust collecting device 20 according to a first embodiment of the present invention is detachably attached to a horizontal drive device 10, thereby constituting a cleaner body 1 of an electric cleaner. A flexible hose having a handle and an operation portion, an extension pipe, and a suction port body, which are not shown, are connected to the driving device 10 of the cleaner body 1.

< construction of drive device >

In the cleaner body 1, the driving device 10 includes: a housing 11 having a dust collecting device mounting part 12 with a concave upper opening for attaching and detaching a dust collecting device 20 in a horizontal state in the vertical direction; an electric blower 30 provided inside the casing 11; and a pair of left and right wheels 13 and a front wheel 14 rotatably provided in the housing 11.

The housing 11 has an elliptical upper end edge in plan view, and a front portion of the upper end edge is a handle portion 11a having a U-shape in plan view. A cord reel 40 for winding a power cord (not shown) in the housing 11 to supply electric power from an external power source to the electric blower 30 is provided in the right rear portion of the housing 11, and a winding start button 15 for operating the cord reel 40 to wind the power cord drawn out from the cord reel 40 is provided in the rear portion of the dust collector mounting portion 12 of the housing 11.

The winding start button 15 is disposed in the housing 11 in the vicinity of the dust collector mounting portion 12 at a position where it does not come into contact with the external environment (for example, the floor surface F) due to the tilting of the driving device 10 (fig. 5) or where it does not start winding of the drawn power cord even if it comes into contact.

In the present embodiment, the dust collecting device mounting portion 12 is provided on the upper surface side of the housing 11 so that the dust collecting device 20 can be mounted in a horizontal state, and a holding plate 16 that holds a bottom portion 21b of a dust cup 21, which will be described later, of the dust collecting device 20 is provided to protrude upward from the upper surface of the housing 11.

The winding start button 15 is disposed at a position near the rear of the holding plate 16 and at an intermediate position in the left-right direction.

That is, by providing the holding plate 16 upright between the dust collector mounting part 12 and the winding start button 15 in the housing 11, as shown in fig. 5, when the drive device 10 is tilted backward, a gap S is formed between the rear end corner 11h of the housing 11 and the holding plate 16, and the winding start button 15 is not pushed in deeply even if it hits the floor surface F due to the gap S. In other words, the winding start button 15 is configured to have play so that the push-in amount to start winding of the drawn power cord does not reach even if it is touched. As a result, a malfunction of the start of winding of the power supply line due to the rollover of the drive device 10 is prevented. In addition, the winding start button 15 may be designed so as not to hit the floor surface F even if the drive device 10 is tilted rearward.

The housing 11 has a connection port 11b that is connectable to a base end of a flexible hose, not shown, below the handle portion 11a and in front of the dust collecting device mounting portion 12, and has an air inlet 21a, described later, that is connectable to the dust collecting device 20, in the left rear bottom portion and front bottom portion of the dust collecting device mounting portion 12₂And an air discharge port 22Da₁₂The air outlet 11c and the air inlet 11d are connected to each other, and the rear wall 11e has an air outlet 11e₁。

Gaskets are provided around the air outlet 11c and the air inlet 11d, and a filter 50 with a gasket, not shown, is attached to the air inlet 11 d.

Further, an exhaust port 11e in a rear wall portion 11e of the case 11₁Three projecting legs 11f are provided around the drive unit 10 to enable the drive unit to stand upright.

Inside the drive device 10, a first air flow path 17a is formed between the connection port 11b and the air outlet port 11c, a second air flow path 17b is formed between the air inlet port 11d and the electric blower 30, and the electric blower 30 and the air outlet port 11e of the rear wall portion 11e₁And becomes a third flow path 17 c. The electric blower 30 is disposed at a lower portion of the dust collector mounting portion 12 at an intermediate position in the front-rear direction(side of the air outlet 11 c), and the third flow path 17c is routed from the electric blower 30 to both the left and right sides of the reel 40 to the exhaust port 11e₁。

As shown in fig. 3 and 4, the dust collector mounting part 12 is provided with a pair of engaging recesses 11g on both left and right sides of the air inlet 11d, and the pair of engaging recesses 11g can receive a pair of locking claws 22Db of the dust collector 20, which will be described later₂The locking is realized in a locking/releasing way.

The connection port 11b is provided with a male terminal 11b₁The male terminal 11b₁Can be electrically connected with female terminal of electric wiring part arranged at base end part of flexible hose, not shown, and male terminal 11b₁And is electrically connected to a circuit board (not shown) via a wire. The circuit board is disposed in the housing 11 near the reel 40 and is electrically connected to the electric blower 30 and a power supply line (not shown) via a lead wire or the like.

< construction of dust collecting device >

Fig. 6 is a perspective view showing a dust collecting device according to a first embodiment of the present invention, and fig. 7 is a sectional view showing an internal structure of the dust collecting device of fig. 6. Fig. 8 is a sectional view showing an internal structure of the dust collecting device of fig. 6 with a bottom opened, and fig. 9 is an exploded view showing the dust collecting device of fig. 6.

As shown in fig. 6 to 9, the dust collecting device 20 includes: having a mounting opening 21a₁The dust cup 21; and an attachment opening 21a detachably attached to the dust cup 21₁The centrifugal separation unit 22 of (1).

[ dust cup ]

The dust cup 21 has: a cylindrical body portion 21 a; and a bottom part 21b which is separated from the hinge part 21b₁A lower end opening part openably and closably provided in the body part 21 a; and the upper end opening of the body portion 21a is an attachment opening 21a to which the centrifugal separation unit 22 is detachably attached₁。

In the dust cup 21, the air inlet 21a opening in the tangential direction to the outer peripheral surface is provided in the body portion 21a₂And is provided at the lower end opening of the body part 21a and the outer periphery of the bottom part 21bA locking portion 21c for releasably locking the closed state of the bottom portion 21 b.

The attachment opening 21a of the body portion 21a₁Has L-shaped locking grooves 21a at two opposite positions on the inner peripheral surface₃And in the locking groove 21a₃Is provided with an inner flange portion 21a₄。

In the interior of the dust cup 21 to which the centrifugal separation unit 22 is attached, a space around an inner cylindrical portion 22Aa of a first centrifugal separation portion 22A, which will be described later, of the centrifugal separation unit 22 becomes a first dust collecting chamber 21R, and relatively large first dust is captured in the first dust collecting chamber 21R.

[ centrifugal separation Unit ]

Fig. 10 is an exploded view of the centrifugal separation unit in the disassembled dust collecting apparatus of fig. 9. As shown in fig. 6 to 10, the centrifugal separation unit 22 includes: a cylindrical first centrifugal separation portion 22A that separates first dust in air; and a second centrifugal separation section 22B which is arranged around the first centrifugal separation section 22A and has a plurality of centrifugal separation cylinders 22Ba that separate second dust smaller than the first dust in the air that has passed through the first centrifugal separation section 22A.

In the case of the first embodiment, the centrifugal separation unit 22 further includes: a wiper portion 22C provided between the second centrifugal separation portion 22B and the cup 22Ab so as to be rotatable with respect to the later-described cup 22Ab of the first centrifugal separation portion 22A; and a rotating portion 22D that covers the second centrifugal separation portion 22B so as to rotate the wiping portion 22C.

First centrifugal separation section

The first centrifugal separation section 22A includes: an inner tube part 22Aa that communicates the first dust collecting chamber 21R of the dust cup 21 with the second centrifugal separation part; and the cup part 22Ab having an insertion hole through which the inner tube part 22Aa is inserted and a fitting opening 22Ab into which the second centrifugal separation part 22B is fitted₁₃。

As shown in fig. 7, 10, and 11, the inner tube portion 22Aa includes: intermediate tubular member 22Aa₁Assembled in the intermediate cylinderPart 22Aa₁Outer compression screw part 22Aa of₂And assembled to the intermediate cylindrical member 22Aa₁Inner side rotational force transmission frame body 22Aa₃And an intermediate cylindrical member 22Aa₁Connected shutter member 22Aa₄。

Intermediate tubular member 22Aa₁Comprising: cylindrical small-diameter cylinder frame part 22Aa₁₁A screen member 22Aa wound around an outer peripheral wall having a plurality of slits₁₁₁And then the product is obtained; middle diameter tube part 22Aa₁₂And a small-diameter cylinder frame part 22Aa₁₁The upper end parts of the two are connected; and a large-diameter tube part 22Aa₁₃And a middle diameter tube part 22Aa₁₂Are connected with each other at the upper end part.

Compression screw part 22Aa₂Comprising: cylindrical outer frame 22Aa₂₁Rotatably fitted into the intermediate cylindrical member 22Aa₁Screen member 22Aa of₁₁₁The outer side of (a); lower end cylinder part 22Aa₂₂And the outer frame portion 22Aa₂₁The lower end parts of the two are connected; large-diameter cylindrical part 22Aa₂₃And is continuously provided on the outer frame portion 22Aa via the outer flange portion₂₁And the lower end cylindrical part 22Aa₂₂To (c) to (d); and a helical blade 22Aa₂₄And is provided in the large-diameter tube part 22Aa₂₃The outer peripheral surface of (2). Further, a plurality of (four in this case) support claws 22Aa₂₅An outer frame portion 22Aa projecting upward₂₁Inner lower end tube part 22Aa of₂₂The upper end portion of (a).

Rotational force transmission frame body 22Aa₃Comprising: outer peripheral wall 22Aa₃₁A plurality of window portions; a plurality of (five in this case) supporting claws 22Aa₃₂And is provided in an upwardly projecting manner on the outer peripheral wall 22Aa₃₁The upper end portion of (1); and a plurality of (four in this case) turning force transmitting claws 22Aa₃₃And a peripheral wall 22Aa projecting downward₃₁A lower end portion of (a).

A plurality of turning force transmitting claws 22Aa₃₃A plurality of turning force transmission claws 22Bc capable of engaging with a second centrifugal separation part 22B described later are provided₂Inclined surface 22Aa in sliding contact₃₂₁(see fig. 8 and 11).

Shutter member 22Aa₄Comprising:cylindrical baffle body 22Aa₄₁(ii) a Outer flange 22Aa₄₂And is provided in the baffle plate body portion 22Aa₄₁The lower end portion side of the outer peripheral surface of (1); and a plurality of (three in this case) convex portions 22Aa₄₃And a plurality of (two in this case) boss portions 22Aa₄₄And is provided in an outer flange portion 22Aa projecting upward₄₂The upper surface of (1).

Further, at the outer flange portion 22Aa₄₂A hole 22Aa into which a plurality of (in this case, two) tapping screws 22x are inserted is provided₄₂₁At a plurality of convex portions 22Aa₄₃Compression springs 22y as urging members are attached to the respective members.

Further, the outer flange 22Aa is inserted₄₂Hole portion 22Aa₄₂₁ The tapping screw 22x is screwed to the intermediate cylindrical member 22Aa₁The middle diameter tube part 22Aa₁₂The baffle member 22Aa by the boss portion (not shown)₄Connected to the intermediate cylindrical member 22Aa₁。

The cup 22Ab includes: upper cup 22Ab₁And has a fitting port 22Ab into which the second centrifugal separation part 22B is fitted₁₃(ii) a Lower cup 22Ab₂Which receives the upper cup 22Ab₁And has an insertion hole through which the inner tube part 22Aa is inserted; and a small diameter pad 22Ab₃And a spacer 22Ab having a large diameter₄. Upper cup 22Ab₁Having a cylindrical portion 22Ab₁₁And a cylindrical part 22Ab₁A conical part 22Ab of a ring mortar shape connected to the lower end part of the lower part₁₂。

In the upper cup 22Ab₁Cylinder part 22Ab₁₁An upper outer flange portion 22Ab of a cover member 22Da, which will be described later, for supporting the rotating portion 22D is provided at an upper end portion of the outer peripheral surface of (1)₁₁₁And a positioning groove 22Ab₁₁₂The lower end side is provided with a lower cup 22Ab₂Lower outer flange portion 22Ab of the upper end edge of (1)₁₁₃。

In the upper cup 22Ab₁Tapered portion 22Ab₁₂A boss portion 22Ab for inserting the tapping screw 22z is provided at two opposite positions in a downward projecting manner₁₂₁。

In addition, the boss part 22Ab is inserted₁₂₁With the tapping screw 22z therebetweenMinor diameter pad 22Ab₃Assembly upper cup 22Ab₁With the lower cup 22Ab₂Then, it is screwed to the lower cup 22Ab₂Annular flat surface portion 22Ab described later₂₂₃The cup 22Ab is placed in a hole (not shown) formed therein₁With the lower cup 22Ab₂And (7) connecting.

Lower cup 22Ab₂Comprising: cylinder part 22Ab₂₁Diameter of the upper cup 22Ab₁Lower outer flange portion 22Ab₁₁₃Small; and an annular bottom portion 22Ab₂₂And is provided in the cylindrical portion 22Ab₂₁The lower end outer peripheral portion of (a).

Cylinder part 22Ab₂₁A positioning convex portion 22Ab is provided at the lower end side of the outer peripheral surface₂₁₁. The positioning convex portion 22Ab₂₁₁ An installation opening 21a for installing the centrifugal separation unit 22 in the dust cup 21₁Is engaged with the locking groove 21a of the dust cup 21₃。

Bottom 22Ab₂₂Comprising: pad mounting part 22Ab₂₂₁For large diameter pad 22Ab₄Mounting; annular recess 22Ab having an open lower part₂₂₂And is provided on the pad mounting part 22Ab₂₂₁And an intermediate cylindrical member 22Aa₁The large-diameter tubular part 22Aa₁₃Can be slidably inserted into the upper end portion of the housing; annular flat surface 22Ab₂₂₃And is provided in the annular recess 22Ab₂₂₂The inner side of (a); and a small diameter cylindrical part 22Ab₂₂₄And is provided on the annular flat surface part 22Ab₂₂₃Inner side (see fig. 7 and 8).

In addition, the spacer 22Ab having a large diameter₄When the cup 22Ab and the inner tube 22Aa are combined, the cup 22Ab is placed and closely contacted with the mounting opening 21a of the cup 22Ab₁ Inner flange portion 21a₄The above. And, the small diameter pad 22Ab₃Attached to the small-diameter cylindrical portion 22Ab₂₂₄The upper end of the upper cup 22Ab₁With the lower cup 22Ab₂Hour and upper cup 22Ab₁Tapered portion 22Ab₁₂The opening end portions of (2) are closely contacted.

Annular flat surface 22Ab₂₂₃In the connection with the shutter member 22Aa₄Two boss portions 22Aa₄₄Two holes are provided at corresponding positions to separate the tapping screws 22qThe washer is inserted into each hole and screwed to the boss part 22Aa₄₄Thereby being slidably coupled to the lower cup 22Ab₂So that the shutter member 22Aa₄Can not fall off.

Further, in the annular flat surface portion 22Ab₂₂₃Three downward-opening recesses 22Ab into which the upper ends of the three compression springs 22y are fitted are provided at positions other than the two holes₂₂₅(refer to fig. 8).

Second centrifugal separation section and wiping section

Fig. 12 is a perspective view showing the second centrifugal separation part and the wiping part in the disassembled centrifugal separation unit of fig. 10, and fig. 13 is an exploded view of the second centrifugal separation part of fig. 12. Fig. 14 is a perspective view seen from below showing a state in which the wiping portion is assembled in the second centrifugal separation portion of fig. 10, fig. 15 is a sectional view showing a structure in the second dust collection chamber in the dust collection device of fig. 6, and fig. 16 is a sectional view showing a state in which the cup portion, the inner cylinder portion, the support plate portion, and the wiping portion are assembled in the dust collection device shown in fig. 2. Fig. 16 shows a state in which the lower centrifugal separation tube portion 22Bb is not connected to the support plate portion 22 bc.

As shown in fig. 12 to 14, the second centrifugal separation section 22B is formed by integrally disposing a plurality of (ten in this case) centrifugal separation cartridges 22Ba on the same circle. For example, the integrated body can be integrated by ultrasonic welding.

Specifically, the second centrifugal separation part 22B is formed by joining and integrating an upper centrifugal separation cylinder 22Ba, a lower centrifugal separation cylinder 22Bb, and a rotational force transmission disk 22 Bc.

As shown in fig. 7, 8, and 12 to 14, the upper centrifugal separation cylinder 22Ba includes: multiple double-layer cylinders 22Ba₁Each having an inner tube part 22Ba₁₁And an outer tube 22Ba₁₂And are arranged on the same circle and integrated; disc part 22Ba₂And a plurality of double-layer tube portions 22Ba₁Outer tube part 22Ba₁₂The lower end parts of the two are integrated; upper wall 22Ba₃A plurality of inner tube parts 22Ba₁₁Upper end opening 22Ba₁₁₁In the opening modeArranged on a plurality of double-layer cylinders 22Ba₁The upper end portion of (1); and a second gear 22Ba as a constituent element of the turning mechanism portion 22Dc described later₄Which is provided on the upper wall portion 22Ba₃Of the center of (c).

At the disk part 22Ba₂Is provided with and each inner tube part 22Ba₁₁And each outer tube part 22Ba₁₂A communicating hole portion.

Further, each double-layer tube portion 22Ba₁Outer tube part 22Ba₁₂Upper wall portion 22Ba of₃Is provided with an air introduction hole 22Ba at a lower position₁₂₁。

The lower centrifugal separation cylinder 22Bb has a plurality of conical cylinder portions 22Bb₁A plurality of tapered cylindrical portions 22Bb₁And each inner tube part 22Ba₁₁And each outer tube part 22Ba₁₂Communicating with each other and having a diameter gradually increasing away from each double-layer cylinder portion 22Ba₁And is reduced, the plurality of tapered cylindrical portions 22Bb₁To form air flow through holes 22Bb at their centers₂The above-described embodiments are arranged on the same circle and integrated. In addition, the air flow hole 22Bb₂With each double-layer cylinder part 22Ba₁Each air introduction hole 22Ba₁₂₁And (4) communicating.

As shown in fig. 12 to 16, the rotational force transmission disk 22Bc includes: annular support plate portion 22Bc₁And each cone part 22Bb of the lower part centrifugal separation cylinder part 22Bb₁A plurality of insertion hole parts 22Bc inserted and engaged₁₁(ii) a And a plurality of (five in this case) rotational force transmitting claws 22Bc₂From the support plate portion 22Bc₁Of the central bore 22Bc₁₂Is vertically disposed.

Support plate section 22Bc₁Comprising: annular upper edge portion 22Bc₁₃From having a central bore 22Bc₁₂And a plurality of insertion holes 22Bc₁₁The outer peripheral portion of the flat portion(s) rises upward in the axial direction (toward the lower centrifugal separation cylinder portion 22 Bb); and a plurality of ribs 22Bc₁₄Which is toward the upper edge portion 22Bc₁₃Downward of the opposite side (rotational force transmitting claw 22 Bc)₂Side) and arranged at a predetermined interval in the circumferential direction; in two adjoining ribs 22Bc₁₄Form therebetweenWith a cut 22Bc₁₄₁。

Support plate section 22Bc₁At least each rib 22Bc₁₄Is formed of a material different from the material forming the cup 22Ab of the first centrifugal separation portion 22A. In the case of the first embodiment, the cup portion 22Ab is made of ABS (Acrylonitrile Butadiene Styrene) resin, and the support plate portion 22Bc₁The entirety is formed of a polypropylene resin (PP resin).

The wiping portion 22C includes: circular outer seal ring portion 22C₁And an inner bead portion 22C₂(ii) a And a plurality of (ten in this case) substantially right-angled triangular wiping sheets 22C₃To seal the outer sealing ring portion 22C₁And an inner sealing ring portion 22C₂The wiper portion 22C is formed of an elastic material such as rubber or soft resin.

As shown in fig. 14 to 16, of the wipe part 22C, the outer seal ring part 22C₁Has an outer peripheral surface portion 22C capable of sliding contact with the inner peripheral surface of the cup 22Ab of the first centrifugal separation portion 22A₁₁And has a concave peripheral groove 22C opened downward on the inner peripheral surface side₁₂。

Inner sealing ring part 22C₂Has an upper end portion (baffle main body 22A) capable of being brought into contact with the inner cylindrical portion 22Aa of the first centrifugal separation portion 22A₄₁Upper end portion of) of the upper surface 22C₂₁。

Wiping sheet 22C₃Comprising: proximal end portion 22C₃₁Which is connected to the outer sealing ring portion 22C₁And an inner sealing ring portion 22C₂(ii) a And a tip end portion 22C₃₂Which can be engaged with the bottom of the cup 22Ab (tapered portion 22 Ab)₁₂) Slidably contacting and having a base end portion 22C₃₁A thin thickness. In fig. 16, the wiping sheet 22C₃ Front end portion 22C of₃₂Tapered portion 22Ab to be engaged with cup 22Ab₁₂Partially in contact with and partially separated by a gap, but with a front end 22C₃₂And the tapered portion 22Ab₁₂Or may be integrally contacted with each other.

As shown in fig. 12 to 16, when the wiper portion 22C is assembled to the second centrifugal separation portion 22B, the wiper portion 22C is supportedPlate part 22Bc₁A plurality of rotational force transmitting claws 22Bc₂Is inserted through the inner seal ring portion 22C₂The wiping portion 22C is fitted into the support plate portion 22Bc₁. At this time, the wiping pieces 22C of the wiping portion 22C₃ Proximal end portion 22C of₃₁Embedded and positioned in the support plate portion 22Bc₁Of each incision 22Bc₁₄₁Thereby, the two adjacent wiping sheets 22C₃An insertion hole part 22Bc between which a rotating force transmission circular plate 22Bc is arranged₁₁. In addition, the wiping sheet 22C₃Not limited to ten, and may be five, for example, in which case, two adjacent wiping sheets 22C₃Between which two insertion holes 22Bc are arranged₁₁。

Further, the support plate sections 22Bc₁Upper edge portion 22Bc of₁₃Outer seal ring portion 22C fitted into wiping portion 22C₁Concave peripheral groove 22C₁₂And (4) the following steps. Thereby, the wiping portion 22C slides against the cup 22Ab, and the wiping portion 22C is prevented from rolling up from the cup 22Ab during rotation.

The rotating support plate part 22Bc₁Of the plurality of ribs 22Bc₁₄The bottom surface of the cup 22Ab (tapered portion 22 Ab)₁₂Inner surface of) but the ribs 22Bc₁₄And the cup 22Ab are formed of different materials such as PP resin and ABS resin, so that generation of abrasion powder due to friction of the same material can be suppressed.

Further, the support plate sections 22Bc₁Of the plurality of ribs 22Bc₁₄An outer sealing ring portion 22C which comes into contact with the bottom surface of the cup portion 22Ab to form a wiping portion 22C₁From the bottom surface of the cup 22Ab (tapered portion 22 Ab)₁₂) A floating state. Thereby, the outer seal ring portion 22C₁The support plate sections 22Bc can be pressed with a relatively light force without sliding any more while being pressed against the bottom surface of the cup section 22Ab, as a result of which₁And (4) rotating.

Section for rotation

Fig. 17 is an exploded view of a rotating part in the disassembled centrifugal separation unit of fig. 10, fig. 18 is a perspective view of a first gear of the disassembled rotating part of fig. 17 as viewed from below, fig. 19 is an explanatory view showing a state in which the first gear and a second gear are engaged with each other and rotated in a forward direction in the dust collection device shown in fig. 2 in fig. 19 (a), and fig. 19 (B) shows a state in which the first gear is rotated in a reverse direction with respect to the second gear.

As shown in fig. 6, 7, and 17, the rotating portion 22D is provided to the wiping portion 22C and a part of the first centrifugal separation portion 22A (the rotating force transmission housing 22 Aa) via the second centrifugal separation portion 22B₃And a compression screw part 22Aa₂) The rotary operation is performed, and the following structure is provided.

The rotating unit 22D includes: a cover member 22Da including a fitting opening 22Ab for covering the cup 22Ab of the first centrifugal separation part 22A₁₃The cover main body 22Da mounted in the manner of₁And a gland 22Da₂(ii) a A locking claw member 22Db swingably attached to the cover main body 22Da₁With gland 22Da₂To (c) to (d); and a rotation mechanism part 22Dc including a handle 22Dc₁First gear 22Dc in face gear shape₂And an upper wall 22Ba of the upper centrifugal separation cylinder 22Ba of the second centrifugal separation part 22B₃The second gear 22Ba of the face gear shape is provided₄. In addition, the gland 22Da₂By means of screws 22Da₃Is mounted on the cover main body 22Da₁。

Cover main body 22Da₁Having a cylindrical boss portion 22Da₁₁A cover main body 22Da is provided on a part of the outer peripheral portion₁The air discharge port 22Da communicating with the lower space of the air conditioner₁₂(see FIG. 6), in the lid main body 22Da₁Air discharge port 22Da on the upper surface side of₁₂Is provided with a mounting recess 22Da for mounting the locking pawl member 22Db in a swingable manner₁₃. In addition, the cover main body 22Da₁Cylindrical boss portion 22Da₁₁Around the storage handle 22Dc₁So that the handle 22Dc can be easily grasped with the fingers₁。

The pawl member 22Db has: plate-shaped portion 22Db₁(ii) a A pair of said locking claws 22Db of L shape₂Which is arranged on the plate-shaped part 22Db₁Both ends in the longitudinal direction of (1); a pair of shaft portions 22Db₃Which is arranged on the plate-shaped part 22Db₁And a pair of locksFixed jaw 22Db₂On the same axis parallel to the length direction; and a protruding piece 22Db₄Toward the plate-like portion 22Db₁And the locking claw 22Db of the longitudinal intermediate portion of₂The opposite side protrudes.

In the rotation mechanism part 22Dc, a handle 22Dc₁Comprising: cylindrical handle body 22Dc₁₁And has a circumferential concave peripheral groove 22Dc on the outer peripheral surface₁₁₁(ii) a And a lid 22Dc₁₂Which is mounted on the handle body 22Dc₁₁By means of screws 22Dc₂And then connected. In addition, the handle main body 22Dc₁₁Central hole 22Dc of₁₁₂Is provided with a small-diameter wall portion 22Dc₁₁₃(refer to FIG. 7), a handle body 22Dc₁₁To form a double-walled structure.

Further, the turning mechanism portion 22Dc includes: padded 22Dc₃₁First connecting shaft 22Dc₃And a second connecting shaft 22Dc₄Which is inserted into the cover main body 22Da from the upper and lower sides₁Cylindrical boss portion 22Da₁₁(ii) a Spring 22Dc₅From the handle body 22Dc₁₁Central hole 22Dc of₁₁₂Is inserted above and supplies the first connecting shaft 22Dc₃Inserting; screw 22Dc with washer₆Which is inserted through the handle body 22Dc from below₁₁Of the central hole 22DC₁₁₂First connecting shaft 22Dc₃Combining; and a cylindrical first gear 22Dc₂Which is separated by a spring 22Dc₇And by means of screws 22Dc with washers₈Is mounted on the second coupling shaft 22Dc from below₄。

As shown in fig. 17 to 19, the first gear 22Dc₂Has a plurality of teeth 22Dc₂₁Said plurality of teeth 22Dc₂₁Respectively provided with a handle 22Dc₁Vertical surface (vertical surface) 22Dc substantially parallel to the rotation axis P₂₁₁。

On the other hand, a second gear 22Ba provided in the upper centrifugal separation cylinder portion 22Ba of the second centrifugal separation portion 22B₄Has a plurality of teeth 22Ba₄₁Said plurality of teeth 22Ba₄₁Respectively has: to communicate with the first gear 22Dc₂Vertical plane 22Dc₂₁₁Surface contactA supporting surface 22Ba substantially parallel to the rotation axis P₄₁₁。

Also, the first gear 22Dc₂And the second gear 22Ba₄Are formed of different materials from each other. In the present embodiment, the first gear 22Dc₂Formed of PP resin, second gear 22Ba₄Is formed of an ABS resin.

As shown in fig. 19 (a), the first gear 22Dc₂And the second gear 22Ba₄In the engaged state, the first gear 22Dc₂Tooth 22Dc₂₁Vertical plane 22Dc₂₁₁And the second gear 22Ba₄Tooth 22Ba₄₁Supporting surface 22Ba₄₁₁Are in surface contact with each other, thus when the first gear 22Dc₂When the first gear 22Dc rotates in the forward direction indicated by the arrow Q1₂The turning force of (b) is efficiently transmitted to the second gear 22Ba₄And the second gear 22Ba₄And also rotates in the forward direction of arrow Q1.

Then, as shown in fig. 19 (B), the second gear 22Ba is engaged₄Meshed first gear 22Dc₂When the first gear 22Dc rotates in the reverse direction of the arrow Q2₂Tooth 22Dc₂₁Inclined surface 22Dc of₂₁₂In the second gear 22Ba₄Tooth 22Ba₄₁Inclined plane 22Ba₄₁₂Sliding over and over. Then, the first gear 22Dc₂Tooth 22Dc₂₁Falls into the second gear 22Ba₄Tooth 22Ba₄₁And tooth 22Ba₄₁The valley portion between the two members repeats sliding on the slope and dropping into the valley portion, thereby generating vibration. This vibration can be utilized when dust to be described later is discarded.

And, through the first gear 22Dc₂Rotates in the reverse direction and the first gear 22Dc₂And the second gear 22Ba₄Slide over each other, but due to the first gear 22Dc₂And the second gear 22Ba₄Since the materials are different from each other, the generation of abrasion powder due to friction of the same material can be suppressed.

First connecting shaft 22Dc₃A second connecting shaft 22Dc₄And a first gear 22Dc₂Using screws 22Dc with washers₈And are connected so as to be integrally rotatable (fig. 7).

Spring 22Dc in free state₅The handle main body 22Dc₁₁Downward cover main body 22Da₁Side pressure, but handle body 22Dc₁₁Capable of resisting spring 22Dc₅Moves upward by the urging force of the urging member.

In the free state, the spring 22Dc₇The first gear 22Dc₂Downward (handle 22 Dc)₁Opposite side of) but the first gear 22Dc is pressed₂Capable of resisting spring 22Dc₇Is pushed upward (handle 22 Dc)₁Side) movement.

When the locking claw member 22Db is assembled to the cover member 22Da, the cover member 22Da is assembled to the cover member 22Da₁Mounting recess 22Da of₁₃The locking pawl member 22Db is provided. At this time, the mounting recess 22Da is provided₁₃A pair of left and right ribs of (2) and semicircular cut-outs 22Da at upper ends of the pair of left and right ribs₁₄A pair of shaft portions 22Db on which the locking pawl members 22Db are mounted₃. Then, using screw 22Da₃Pressing the cover 22Da₂Mounted to the cover main body 22Da₁。

In the rotary portion 22D configured as described above, the protruding piece 22Db of the pawl member 22Db₄The front end of (2) is locked to the handle body 22Dc₁₁Concave peripheral groove 22Dc₁₁₁(FIG. 7). Thus, by pulling up the handle 22Dc₁And is locked in the concave peripheral groove 22Dc₁₁₁Tab 22Db₄By being pulled up, the locking pawl member 22Db can be pulled up by the shaft portion 22Db₃Swinging for the center. In the case of FIG. 6, when the handle 22Dc is pulled up₁While, the locking pawl 22Db₂Swinging downwards.

Furthermore, when the handle 22Dc is operated₁By the first connecting shaft 22Dc₃And a second connecting shaft 22Dc₄When rotated as a center, the protruding piece 22Db of the locking pawl member 22Db₄Concave peripheral groove 22Dc for relative rotation₁₁₁Relatively slide, so the protruding piece 22Db can not be used₄Obstructing the handle 22Dc₁The rotation of (2).

Furthermore, when the handle 22Dc is operated₁When rotating, the rotating force is transmitted to the first connecting shaft 22Dc₃FromAnd the second connecting shaft 22Dc₄And a first gear 22Dc₂To the first connecting shaft 22Dc₃Rotate integrally.

[ Assembly of dust collecting device ]

As shown in fig. 7 to 10, the dust collecting device 20 is configured such that the centrifugal separation unit 22 is detachably attached to the attachment opening 21a of the dust cup 21₁The centrifugal separation unit 22 is assembled by a first centrifugal separation part 22A, a second centrifugal separation part 22B, a wiping part 22C, and a rotating part 22D.

In the assembled state of the dust collection device 20, a space around the inner cylindrical portion 22Aa of the first centrifugal separation portion 22A in the dust cup 21 becomes a first dust collection chamber 21R in which relatively large first dust is accumulated.

The inner cylindrical portion 22Aa of the first centrifugal separation portion 22A is assembled by an intermediate cylindrical member 22Aa₁Small diameter cylinder frame part 22Aa₁₁Inserted into the compression screw part 22Aa₂Outer frame portion 22Aa of₂₁Inner and outer rotational force transmission frame portions 22Aa₃Inserted into the intermediate cylindrical member 22Aa₁Small diameter cylinder frame part 22Aa₁₁Inner baffle plate member 22Aa₄Fixed to the intermediate cylindrical member 22Aa with tapping screws 22x₁The middle diameter tube part 22Aa₁₂。

The cup 22Ab of the first centrifugal separation part 22A is assembled by fitting the upper cup 22Ab₁Overlap the lower cup 22Ab₂And is fixed by tapping screws 22 z.

The inner tube 22Aa of the first centrifugal separation part 22A is assembled by disposing the packing 22Ab between the inner tube 22Aa and the cup 22Ab₃、22Ab₄And a pair of boss portions 22Aa formed by overlapping the inner tube portion 22Aa and the cup portion 22Ab so as to compress the springs 22y and screwing a tapping screw 22q with a washer to the inner tube portion 22Aa₄₄。

The second centrifugal separation portion 22B is rotatably attached by being fitted into the wiper portion 22C on the lower surface of the rotational force transmission disk 22Bc, and then being housed in the cup portion 22Ab of the first centrifugal separation portion 22A.

The rotating part 22D is formed by fitting the cover member 22Da into the first centrifugal partFitting port 22Ab of cup 22Ab of separation part 22A₁₃And then installed. At this time, the first gear 22Dc on the rotating portion 22d side₂And a second gear 22Ba on the second centrifugal separation part 22B side₄And engaged, thereby assembling the centrifugal separation unit 22.

When the centrifugal separation unit 22 thus assembled is attached to the dust cup 21, the baffle member 22Aa, which is the upper end portion of the first centrifugal separation portion 22A, is resistant to an attempt to be depressed by the plurality of compression springs 22y₄The compression screw part 22Aa, which is the lower end part of the first centrifugal separation part 22A₂Lower end tubular part 22Aa of₂₂Is pushed up by the bottom 21b of the dust cup 21.

Thus, the shutter member 22Aa₄Cylindrical baffle body part 22Aa of₄₁Insert through the upper cup 22Ab₁Tapered portion 22Ab₁₂Is airtightly contacted with the inner sealing ring part 22C of the wiping part 22C₂A baffle main body part 22Aa₄₁Upper cup 22Ab₁And a second dust collecting chamber 22R surrounded by the second centrifugal separation part 22B. The second dust collecting chamber 22R is formed by a plurality of wiping pieces 22C of the wiping part 22C₃And is divided into a plurality of chambers (fig. 7, 15).

[ operation of vacuum cleaner main body and maintenance of dust collecting device ]

As shown in fig. 1, a flexible hose having a handle and an operation portion, an extension pipe, and a suction port body, which are not shown, are connected to a cleaner body 1 of an electric cleaner including a dust collecting device 20 of the present invention during cleaning.

When the power is turned ON by the operation unit, the electric blower 30 is driven to suck dust ON the surface to be cleaned together with air and clean the surface. The air containing dust sucked into the suction port body is sucked into the cleaner body 1 through the extension pipe and the flexible hose.

The flow of air in the cleaner body 1 will be described below with reference to fig. 1 to 16. In addition, the flow of air becomes arrow F in fig. 2₁～F₁₀The order of (a). The air containing dust first flows into the connection port 11b of the driving device 10 (arrow F)₁) Through the first flow between the connection port 11b and the air outlet port 11cThrough path 17a (arrow F)₂) And flows into the air inlet 21a of the dust cup 21 of the dust collecting device 20₂(arrow F)₃)。

The air containing dust flowing into the dust cup 21 rotates in the dust cup 21, while the first dust relatively large rotates on the inner peripheral surface side of the dust cup 21 by centrifugal force, and the air containing fine dust moves toward the screen member 22Aa₁₁₁(arrow F)₄). Thereby, relatively large first dust is accumulated in the first dust collecting chamber 21R in the dust cup 21.

Has passed through the screen part 22Aa₁₁₁The air containing the second dust finer than the first dust flows into the cylindrical portion 22Aa of the first centrifugal separation portion 22A (arrow F)₅) And toward the air flow hole 22Bb of the second centrifugal separation part 22B₂And flows into the inner part. Then, the air containing the second dust is introduced from the plurality of air introduction holes 22Ba₁₂₁Flows into the inside of the centrifugal separation cylinders 22Ba and is along the double-layer cylinder 22Ba₁Outer tube part 22Ba₁₂Inner peripheral surface and each tapered tubular portion 22Bb₁Rotates.

The air containing the second dust flows along the plurality of tapered cylinders 22Bb₁The second dust is centrifugally separated and accumulated in the plurality of divided second dust collecting chambers 22R in the centrifugal separation unit 22 by the rotation of the inner peripheral surface of the second dust collecting chamber. On the other hand, the air from which the second dust has been removed passes through the plurality of double-walled cylinders 22Ba₁Inner tube part 22Ba₁₁Inside (arrow F)₆) And from the upper end opening 22Ba₁₁₁Flows into the cover main body 22Da of the rotating part 22D₁Inside, from the air discharge port 22Da₁₂Flows into the air inlet 11d through the filter 50 of the drive device 10 (arrow F)₇)。

The purified air having flowed into the driving device 10 passes through the third flow path 17b between the air inlet 11d and the electric blower 30, passes through the electric blower 30, and passes through the exhaust port 11e and the electric blower 30₁Third flow-through path 17c (arrow F)₈、F₉) From the exhaust port 11e₁Is discharged to the outside (arrow F)₁₀)。

Next, maintenance of the dust collector 20 after cleaning will be described.

Screen member 22Aa of dust collecting device 20₁₁₁The first dust collected in the first dust collecting chamber 21R of the dust collecting and collecting cup 21 is compressed by the handle 22Dc of the rotating part 22D₁Rotating in a predetermined direction. In this case, dust removal and compression can be performed in a state where the dust collecting device 20 is attached to the driving device 10, but it is desirable that appropriate dust removal and compression be performed in a state where the dust collecting device 20 is detached from the driving device 10 and the dust collecting device 20 is erected.

The dust removal and compression performed after the dust collection device 20 is detached from the drive device 10 will be described below.

First, when the dust collection unit 20 mounted to the driving unit 10 is detached, the handle 22Dc of the dust collection unit 20 is grasped by hand₁A pair of locking claws 22Db of the dust collecting device 20 engaged with the pair of engaging recesses 11g of the driving device 10 by pulling₂Swing to disengage from each engaging recess 11g, so that the user can pull up the handle 22Dc₁The dust collecting device 20 is removed in one operation. Handle 22Dc₁Is reduced in diameter with the downward direction so as to grip the handle main body 22Dc thereof by hand₁₁。

The dust collecting device 20 detached from the driving device 10 is placed on a stable surface such as a floor surface in a standing state, and the handle 22Dc₁To the handle 22Dc₁Cover 22Dc of₁₂Is rotated in the direction of the arrow shown (clockwise). Thereby, the rotating force transmission frame body 22Aa of the inner tube part 22Aa₃And a compression screw part 22Aa₂And (4) rotating.

As explained in detail, via the handle 22Dc₁Rotated with the handle 22Dc₁Coupled first coupling shaft 22Dc₃A second connecting shaft 22Dc₄And a first gear 22Dc₂The first gear 22Dc rotates in the forward direction in the direction of arrow Q1 shown in FIG. 19A₂Second gear 22Ba in mesh₄The second centrifugal separation part 22B also rotates in the normal direction of the arrow Q1 shown in fig. 19 (a).

The rotation of the second centrifugal separation part 22B causes the plurality of rotational force transmission claws 22Bc of the second centrifugal separation part 22B₂The first centrifugal separation part 22A is rotated and has a plurality of rotating force transmission claws 22Bc₂A plurality of abutting supporting claws 22Aa₃₂The rotational force transmission frame body 22Aa₃A rotating, rotating force transmitting frame 22Aa₃A plurality of rotational force transmitting claws 22Aa₃₃A plurality of abutting supporting claws 22Aa₂₅Compression screw part 22Aa₂And (4) rotating.

At this time, the compression screw part 22Aa is passed₂Outer frame portion 22Aa of₂₁Rotates to wipe and adhere to the screen member 22Aa₁₁₁And dust removal is performed.

Then, the compression screw part 22Aa is passed₂The helical blade 22Aa₂₄The first dust accumulated at the bottom of the first dust collecting chamber 21R of the dust cup 21 is rotated by the spiral blade 22Aa₂₄And (4) compressing. At this time, the helical blade 22Aa can be used₂₄A plurality of small protrusions 22Aa of the lower surface of₂₄₁Forming dust lumps to effectively compress the dust.

When a large amount of the first dust is accumulated in the dust cup 21 and the accumulated first dust is compressed to the limit, the screw portion 22Aa is compressed by the first dust cake₂The rotation mechanism 22Dc and the second centrifugal separation part 22B are not easily rotated, and may be damaged by an excessive load. Therefore, when an overload is applied to the rotation mechanism portion 22Dc, the second centrifugal separation portion 22B, and the like, the plurality of rotational force transmission claws 22Bc of the second centrifugal separation portion 22B₂To pass over the rotational force transmission frame body 22Aa₃A plurality of supporting claws 22Aa₃₂The rotating mechanism 22Dc and the second centrifugal separation portion 22B are idle due to the sliding contact. Further, the first gear 22Dc₂May be arranged opposite to the second gear 22Ba₄And (4) idling.

Thereby, the turning force is not transferred to the turning force transmission housing 22Aa₃And a compression screw part 22Aa₂The transmission prevents the rotation mechanism 22Dc and the second centrifugal separation part 22B from being damaged.

Further, the idling of the rotating mechanism portion 22Dc and the second centrifugal separating portion 22B causes a sound such as "squeak" and vibration, thereby enabling the user to recognize that the first dirt in the dirt cup 21 is full and stop the compressing operation, and also enabling the user to recognize that it is time to discard the first dirt in the dirt cup 21.

When the first dust in the dust cup 21 is discarded, the lock release button 21c of the lock portion 21c is pressed₁And the bottom 21b is opened, the first dirt in the dirt cup 21 falls and is discarded (fig. 8, 9).

At this time, the first centrifugal separation portion 22A is pressed down by the plurality of compression springs 22y to be compressed by the screw portion 22Aa₂The dragging mode makes the first dust block fall down. Therefore, even if the first dust cake is accumulated in the dust cup 21 and the compression screw part 22Aa₂Can smoothly fall down in the narrow space therebetween.

At this time, the first centrifugal separation part 22A is lowered, and the baffle member 22Aa is moved downward₄Since the plurality of second dust collecting chambers 22R are lowered and communicate with the inside of the inner cylindrical portion 22Aa, the second dust accumulated in the respective second dust collecting chambers 22R falls through the inside of the inner cylindrical portion 22Aa and is discarded. At this time, since the second dust may remain in the plurality of second dust collecting chambers 22R, the handle 22Dc is rotated₁The wiping part 22C is rotated together with the second centrifugal separation part 22B, and the plurality of wiping pieces 22C₃The second dust can be scraped off toward the inner cylindrical portion 22Aa and cleanly removed.

At this time, the plurality of wiping sheets 22C₃Due to their front ends 22C₃₂Thickness ratio of (2) to the base end portion 22C₃₁Is thin, so the wiping sheet 22C₃ Front end portion 22C of₃₂Easily bent so as to be in contact with the tapered portion 22Ab as the bottom of the cup portion 22Ab₁₂Is tightly fitted (fig. 16). Also, a plurality of wiping sheets 22C₃Inclined at a predetermined angle with respect to the radial direction about the axial center to facilitate scraping of the second dust (fig. 15), and the second dust falling into the inner cylindrical portion 22Aa is discharged from the compression screw portion 22Aa₂Lower end tubular part 22Aa of₂₂Falls and is discarded.

And, by turning the handle 22Dc₁And a plurality of rotational forces of the second centrifugal separation part 22BDelivery claw 22BC₂Rotates to transmit the rotating force to the frame body 22Aa₃A plurality of supporting claws 22Aa₃₂Contact, each rotary force transmitting claw 22Bc₂With each supporting claw 22Aa₃₂Inclined surface 22Aa of₃₂₁In sliding contact. Thereby, for example, even if the second dust blocks the shutter member 22Aa₄With the upper cup 22Ab₁The gap between the inner peripheral surfaces of the insertion holes of (2) enables the shutter member 22Aa to be positioned at a predetermined distance from each other₄Is not easy to fall down and passes through each rotary force transmission claw 22Bc₂With each supporting claw 22Aa₃₂Inclined surface 22Aa of₃₂₁Sliding contact transmits the turning force to the frame body 22Aa₃Forcibly pressed down to push the shutter member 22Aa₄And a supporting turning force transmission frame body 22Aa₃Intermediate tubular member 22Aa of₁The second dust collecting chambers 22R are pressed together to communicate with the inside of the inner cylinder portion 22 Aa.

Thus, the handle 22Dc₁The shutter member 22Aa is rotated and interlocked₄And the cleaning in the second dust collecting chamber 22R by the rotation of the wiper portion 22C, and at the same time, the screw portion 22Aa is compressed₂Outer frame portion 22Aa of₂₁Rotated to perform the sieve member 22Aa again₁₁By compressing the screw part 22Aa₂The first dust cake is discharged by moving downward.

Further, as described with reference to fig. 19 (B), the handle 22Dc can be used₁Rotate in the reverse direction to rotate the first gear 22Dc₂Rotate in the reverse direction of the arrow Q2, thereby making the first gear rotate in the second gear 22Ba₄And slides to generate vibration to screen out dust remaining in the second dust collecting chamber 22R and the first dust collecting chamber 21R.

As shown in fig. 9 and 10, the dust collecting device 20 can be disassembled into the dust cup 21, the first centrifugal separation part 22A, the second centrifugal separation part 22b, and the rotation part 22d, and the first centrifugal separation part 22A can be disassembled into the intermediate cylindrical member 22Aa₁And a shutter member 22Aa₄Assembly of (2), and rotational force transmission frame body 22Aa₃And a compression screw part 22Aa₂So that they can be washed with water separately.

(second embodiment)

The first embodiment illustrates the case of the multi-cyclone type dust collecting apparatus 20 (fig. 7) including the first centrifugal separation section 22A and the second centrifugal separation section 22B, but the present invention can also be applied to a single-cyclone type dust collecting apparatus.

As will be described with reference to fig. 7, in the case of the single cyclone type dust collecting apparatus according to the second embodiment, a filter (for example, a pleated filter) is provided instead of the second centrifugal separation section 22B.

The filter is penetrated by a transmission handle 22Dc₁And a second gear is provided at a tip end portion of the shaft portion.

Further, a plurality of rotational force transmission claws are provided at the lower end portion of the shaft portion, the plurality of rotational force transmission claws being capable of engaging with the rotational force transmission frame 22Aa₃A plurality of supporting claws 22Aa₃₂And (4) contacting.

Further, a dust removing portion may be provided to rotate together with the shaft portion to vibrate the filter and remove dust.

That is, the dust collecting device of the second embodiment includes: a dust cup having a bottom and an opening which can be opened and closed, and a dust separating unit fitted into the opening of the dust cup,

the dust separating unit includes: an inner cylinder supported at the closed bottom of the dirt cup; a cup portion that communicates with the inner cylindrical portion; a filter disposed within the cup portion; and a rotor having a shaft portion penetrating the filter,

the inner cylinder is pressed down toward the bottom by rotating the rotating body in a state where the bottom of the dust cup is open.

Here, "inner tube portion" and "cup portion" correspond to the "inner tube portion 22 Aa" and the "cup portion 22 Ab" of the first embodiment, and "rotating body" corresponds to the "handle 22 Dc" of the first embodiment₁And the shaft portion connected to the shaft portion for rotation.

In the dust collecting device according to the second embodiment, the rotating body has a projecting rod portion projecting toward the inner cylindrical portion,

the inner cylinder portion has an abutting piece portion protruding toward the rotating body and having an inclined surface abutting against the protruding rod portion,

when the bottom of the dust cup is opened, the protruding rod of the rotating rotor slidably contacts the inclined surface of the contact piece of the inner cylinder, and the inner cylinder can be pressed downward toward the bottom.

Here, "protruding rod portion" corresponds to the "rotational force transmission claw", and "abutment piece portion" and "inclined surface" correspond to the "support claw 22 Aa" of the first embodiment₃₂"and" inclined surface 22Aa₃₂₁”。

Further, in the dust collecting device of the second embodiment, the inner cylinder portion may further include: a lower end supported by the bottom of the dirt cup; and a compression screw part which is arranged at the lower end part side and can compress the dust in the dust cup.

Here, the "compression screw portion" corresponds to the "compression screw portion 22 Aa" of the first embodiment₂"," lower end "corresponds to the" compression screw section 22Aa "of the first embodiment₂Lower end tubular part 22Aa of₂₂”。

(third embodiment)

The dust collecting device 20 of the first embodiment is configured such that the handle 22Dc is rotated₁And each rotary force transmission claw 22Bc₂Rotates, through the rotary force transmission claws 22Bc₂With each supporting claw 22Aa₃₂Inclined surface 22Aa of₃₂₁Sliding contact to forcibly press the rotary force transmission frame body 22Aa₃Baffle member 22Aa₄And a supporting turning force transmission frame body 22Aa₃Intermediate tubular member 22Aa of₁The second dust collecting chambers 22R are pressed together and communicate with the inside of the inner cylinder portion 22 Aa. Therefore, the pressing down of the shutter member 22Aa when the bottom 21b of the dust cup 21 is opened can be omitted₄A plurality of compression springs 22 y.

(fourth embodiment)

In the dust collecting device 20 of the first embodiment, the bottom 21b of the dust cup 21 may not be opened. In this case, when the first dust accumulated in the first dust collecting chamber 21R is to be discarded, the first dust may be discarded to the outside by detaching the centrifugal separation unit 22 from the dust cup 21.

Further, in the dust collecting device 20 of the first embodiment, the shutter member 22Aa₄May be fixed in a closed state without moving relative to the cup 22Ab, and the wiping portion 22C may be omitted. In this case, when the second dust accumulated in the second dust collecting chamber 22R is to be discarded, the second centrifugal separation portion 22B is detached from the cup portion 22Ab of the first centrifugal separation portion 22A, and the second dust is discarded to the outside.

(fifth embodiment)

In the dust collecting device 20 of the first embodiment, the handle 22Dc included in the rotating part 22D can be omitted₁The rotation mechanism portion 22 Dc.

In this case, the air discharge port 22Da of the lid member 22Da can be formed₁₂A finger is put in to rotate the second centrifugal separation part 22B.

Alternatively, a gear may be provided on the outer periphery of the second centrifugal separation portion 22B, a part of the gear may be exposed to the outside through a window formed in the cover member 22Da, the second centrifugal separation portion 22B may be rotated together with the gear by a finger, and a drive gear may be provided on the drive device 10 side, and the drive gear may be engaged with the gear of the second centrifugal separation portion 22B to be automatically rotated.

In this case, the lid member 22Da may be provided with: a biasing member for maintaining the locking state of the locking claw member 22Db when the dust collecting device 20 is attached to the driving device 10, and a push button for releasing the locking of the locking claw member 22Db when the dust collecting device 20 is detached from the driving device 10.

(embodiment mode 6)

In the first embodiment, the case where the cord reel for winding the power cord is provided at the rear portion of the drive device 10 is exemplified, and instead of the cord reel, a battery may be built in the rear portion of the drive device 10 or a battery mounting portion to which the battery is detachably mounted may be provided.

(conclusion)

The dust collecting device of the present invention comprises: a dust cup having a bottom and a mounting opening, and a centrifugal separation unit mounted at the mounting opening of the dust cup,

the centrifugal separation unit includes: a first centrifugal separation section of a cylindrical shape that separates first dust in air from the air; and a second centrifugal separation section which is arranged around the first centrifugal separation section and includes a plurality of centrifugal separation cylinders for separating second dust smaller than the first dust in the air having passed through the first centrifugal separation section;

the dust cup comprises a first dust collecting chamber which can collect the first dust around the first centrifugal separation part;

The dust collecting device of the present invention may be configured as follows, and they may be appropriately combined.

(1) The first centrifugal separation portion may further include: an inner cylinder part which makes the first dust collecting chamber of the dust cup and the second centrifugal separation part communicated; and a cup portion having an insertion hole through which the inner cylindrical portion is inserted and an engagement opening into which the second centrifugal separation portion is engaged; and a space surrounded by the cup portion, the inner cylindrical portion, and the second centrifugal separation portion is provided as the second dust collecting chamber.

According to this configuration, in the centrifugal separation unit, the second centrifugal separation portion can be detached from the cup portion, whereby the second dust in the second dust collection chamber can be discharged to the outside.

(2) The dust cup may be configured such that the bottom portion is openable and closable,

the inner cylinder portion includes: a lower end supported at the closed bottom of the dirt cup; and an upper end portion which is inserted into the insertion hole of the cup portion when the bottom portion of the dust cup is in a closed state, and which can shield the inside of the inner cylinder portion and the second dust collecting chamber;

the bottom of the dust cup is opened, and the upper end of the inner cylinder moves downward, so that the inner cylinder communicates with the second dust collecting chamber.

According to this configuration, the bottom of the dust cup is opened, and the first dust in the first dust collection chamber can be discharged to the outside by natural falling. Further, at this time, since the inner cylinder portion moves downward, the upper end portion of the inner cylinder portion functioning as the baffle descends and the inside of the inner cylinder portion communicates with the second dust collecting chamber, the second dust in the second dust collecting chamber can be discharged to the outside by naturally falling through the inside of the inner cylinder portion, and the trouble of discharging the second dust by decomposing the centrifugal separation unit can be eliminated.

(3) The first centrifugal separation part may further include a biasing member that biases the inner tube part toward the closed bottom part of the dust cup.

According to this configuration, even if the second dust enters the gap between the inner cylinder and the insertion hole of the cup portion and the upper end of the inner cylinder is not easily moved in the insertion hole when the bottom of the dust cup is opened to discharge the first and second dusts, the inner cylinder is forcibly pressed by the urging member and the inside of the inner cylinder communicates with the second dust collecting chamber, so that the second dust in the second dust collecting chamber can be surely discharged to the outside by naturally dropping the inside of the inner cylinder.

(4) The centrifugal separation unit may further include: a wiping portion provided between the second centrifugal separation portion and the cup portion so as to be rotatable with respect to the cup portion; and a rotating portion that rotates the wiping portion.

According to this configuration, when the bottom of the dust cup is opened and the first and second dusts are discharged, the rotation portion rotates the wiping portion, whereby the second dust in the second dust collection chamber can be dropped into the inner cylinder portion, and the discharge residue of the second dust can be reduced.

(5) The wiping portion may include a plurality of wiping blades that partition the plurality of centrifugal separation cartridges so as to be individually communicated into the second dust collection chamber.

According to this configuration, in the dust collecting device during operation of the electric vacuum cleaner, the second dust trapped in the second dust collecting chamber can be effectively prevented from flowing back to each of the centrifugal separation cylinders.

(6) The inner cylinder part may further include a compression screw part provided on the lower end side and capable of compressing the first dust in the first dust collection chamber,

the wiping portion and the inner tube portion are connected together so as to be rotatable and separable.

According to this configuration, the inner cylinder portion is rotated by the rotating portion via the wiping portion, whereby the first dust in the first dust collection chamber can be compressed by the compression screw portion. When the bottom of the dust cup is opened to discharge the first and second dusts, the wiping unit and the compression screw unit are interlocked (rotated) by the rotating unit, and the compressed first dusts and second dusts can be discharged while being suppressed from flying.

(7) The rotating portion and the second centrifugal separation portion are connected so as to be integrally rotatable and separable, and the second centrifugal separation portion and the wiping portion are connected so as to be integrally rotatable and separable.

According to this configuration, the second centrifugal separation section can be used as a mechanism for transmitting the rotational force of the rotating section to the wiping section, and therefore the number of parts can be reduced and the structure can be simplified.

(8) The wiping portion may include: an annular outer seal ring portion which is capable of sliding contact with an inner surface of the cup portion of the first centrifugal separation portion; an annular inner seal ring portion which is capable of sliding contact with an upper end portion of the inner cylindrical portion of the first centrifugal separation portion; and a plurality of wiper blades integrated with the cup portion so as to be capable of sliding in contact with a bottom portion of the cup portion and so as to connect the outer seal ring portion and the inner seal ring portion.

According to this configuration, the outer seal ring portion, the inner seal ring portion, and the plurality of wiping pieces can be integrally molded with rubber, for example, to reduce the number of parts and the number of assembly steps, and the wiping portion has a sealing function in addition to a wiping function.

(9) The wiping sheet may include: a base end portion connected to the outer seal ring portion and the inner seal ring portion; and a tip portion that is capable of sliding contact with a bottom portion of the cup portion and has a thickness thinner than the base end portion.

According to this configuration, since the waist portion is attached to the base end portion of the wiper blade and the tip portion can be easily bent, even if the wiper blade is rotated, the base end portion is not easily bent and the tip portion slides in contact with the bottom portion of the cup portion while being in close contact therewith, thereby effectively scraping off dust.

(10) The outer seal ring portion of the wiping portion may include a concave peripheral groove that opens downward on the inner peripheral surface side thereof,

the second centrifugal separation section includes an annular support plate portion that is in close contact with the inner peripheral surface of the outer seal ring portion,

the support plate portion includes an upper rim portion that is embedded in the concave peripheral groove of the outer seal ring portion.

According to this configuration, since the wiper portion can be attached to cover the support plate portion so that the upper edge portion of the support plate portion is fitted into the concave peripheral groove of the outer seal ring portion of the wiper portion, it is possible to prevent the wiper portion from rolling up from the support plate portion and falling off when the wiper portion rotates while sliding along the cup portion.

(11) The support plate portion may include a rib that protrudes further downward than the outer seal ring portion of the wiping portion so as to be capable of sliding contact with a bottom surface of the cup portion.

According to this configuration, the rib of the support plate portion abuts against the bottom portion of the cup portion, and thus the outer seal ring portion of the wiper portion is lifted from the bottom surface of the cup portion and does not come into close contact with the bottom portion. Therefore, the second centrifugal separation portion can be rotated with a light force with respect to the cup portion.

(12) The support plate portion may include a plurality of the ribs arranged at a prescribed interval in the circumferential direction.

According to this configuration, since the load applied to the support plate portion can be distributed to the plurality of ribs, offset wear can be prevented from occurring in one rib.

(13) The ribs of the cup portion and the support plate portion may be formed of different materials. According to this configuration, when the ribs of the cup portion and the support plate portion are formed of the same material, the occurrence of a problem of abrasion powder due to friction between the ribs can be suppressed.

(14) The rotating portion may include: a lid member provided so as to cover the fitting opening of the cup portion of the first centrifugal separation portion; and a rotation mechanism portion provided to be rotatable with respect to the cover member;

the rotating mechanism portion includes: a handle rotatably provided on the cover member; a first gear that is rotatable integrally with the handle; and a second gear provided on an upper wall portion of the second centrifugal separation portion and capable of meshing with the first gear;

the first gear includes a plurality of teeth each having a vertical surface substantially parallel to a rotation axis of the handle;

the second gear includes a plurality of teeth each having a support surface substantially parallel to the rotation axis so as to be in surface contact with the vertical surface of the first gear.

According to this configuration, when the lever of the turning mechanism section is rotated in the forward direction, the force in the forward rotation direction can be efficiently transmitted from the perpendicular surface of the teeth of the first gear to the bearing surface of the teeth of the second gear. Further, when the handle is rotated in the reverse direction, the inclined surface of the tooth of the first gear slides on the inclined surface of the tooth of the second gear, so that the first gear rotates in the reverse rotation direction while vibrating in the rotation axis direction, and the dust in the first and second centrifugal separation sections can be vibrated and dropped into the dust cup by the vibration.

(15) The first gear and the second gear may be formed of different materials from each other. According to this configuration, it is possible to suppress the occurrence of such a problem that abrasion powder is generated due to friction between the first gear and the second gear when the first gear and the second gear are formed of the same material.

Further, the dust collecting device of the present invention includes: a dust cup having a bottom and an opening which can be opened and closed, and a dust separating unit fitted into the opening of the dust cup,

the dust separating unit includes: an inner cylinder supported at the closed bottom of the dirt cup; a cup portion that communicates with the inner cylindrical portion; a filter disposed within the cup portion; and a rotor having a shaft portion penetrating the filter;

the inner cylinder portion is configured to be pressed down toward the bottom portion side by rotating the rotating body in a state where the bottom portion of the dust cup is opened.

(I) The rotating body may have a protruding rod portion protruding toward the inner cylinder portion side,

the inner cylinder portion has an abutment piece portion protruding toward the rotating body and having an inclined surface abutting against the protruding rod portion,

in a state where the bottom portion of the dust cup is opened, the protruding rod portion of the rotating body slidably contacts the inclined surface of the abutting piece portion of the inner cylinder portion, whereby the inner cylinder portion is pressed down toward the bottom portion side.

According to the structure, the structure of the inner cylinder body can be simplified when the dust in the dust cup is discharged to the outside by pressing.

(II) the inner tubular portion may further comprise: a lower end supported by the bottom of the dirt cup; and a compression screw part which is arranged on the lower end side and can compress the dust in the dust cup.

According to this configuration, since the compression screw of the inner cylindrical portion is rotated via the rotating body, the dust in the dust cup can be compressed by the compression screw, and therefore, the dust discharged to the outside by opening the bottom portion of the dust cup can be prevented from flying.

the driving device includes: a housing constituting the dust collecting device mounting part; an electric blower provided in the housing; a power supply line that supplies electric power from an external power supply to the electric blower; a cord reel for winding the power cord in the housing in a drawable manner; and a winding start button for operating the cord reel to wind the drawn-out power cord,

the winding start button is disposed in the housing near the dust collector mounting portion at a position where the winding of the drawn power cord is not started or is not started even if the winding start button is in contact with the external environment due to the rollover of the driving device.

In the electric vacuum cleaner, the dust collecting device mounting part of the driving device is arranged on the upper surface side of the housing in a mode that the dust collecting device can be mounted in a horizontal state, and a holding plate for holding the bottom part of the dust cup of the dust collecting device is arranged on the upper surface of the housing in a protruding mode,

the winding start button may be disposed at a position near the rear of the holding plate and at an intermediate position in the left-right direction.

According to the structure, in the horizontal type electric dust collector which is provided with the dust collecting device transversely arranged and installed on the driving device, the winding error action of the power line caused by the overturn of the driving device can be prevented.

In addition, it is to be understood that the disclosed embodiments are illustrative and not restrictive in all respects. The scope of the present invention is indicated not by the description but by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope.

Description of the reference numerals

1: vacuum cleaner main body

10: drive device

11: shell body

12: dust collecting device mounting part

15: winding start button

16: retaining plate

20: dust collecting device

21: dust cup

21a₁: mounting port

21 b: bottom part

21R: a first dust collecting chamber

22: centrifugal separation unit

22 Aa: inner tube part

22Aa₂: compression screw section

22Aa₂₂: lower end cylinder part (lower end of inner cylinder part)

22Aa₄₁: baffle main body part (Upper end of inner tube)

22 Ab: cup part

22Ab₁₃: embedded port

22B: second centrifugal separation part

22 Ba: centrifugal separation cylinder

22Ba₄: second gear

22Ba₄₁: tooth

22Ba₄₁₁: bearing surface

22Bc₁: support plate part

22Bc₁₃: upper edge part

22Bc₁₄: ribs

22C: wiping part

22C₁: outer sealing ring part

22C₁₂: concave peripheral groove

22C₂: inner sealing ring part

22C₃: wiping sheet

22C₃₁: basal end part

22C₃₂: front end part

22D: rotating part

22 Da: cover part

22 Dc: rotating mechanism part

22Dc₁: handle (CN)

22Dc₂: first gear

22Dc₂₁: tooth

22Dc₂₁₁: vertical plane

22R: a second dust collecting chamber

22 y: compression spring (force application component)

30: electric blower

40: wire winder

F: on the floor surface

P: rotating axle center

Claims

1. A dust collecting device is characterized by comprising: a dust cup having a bottom and a mounting opening, and a centrifugal separation unit mounted at the mounting opening of the dust cup,

the centrifugal separation unit includes a second dust collecting chamber capable of collecting the second dust sent from the plurality of centrifugal separation cylinders of the second centrifugal separation portion;

the first centrifugal separation section includes: an inner cylinder part which enables the first dust collecting chamber of the dust cup to be communicated with the second centrifugal separation part; a cup part having an insertion hole for inserting the inner tube part,

the dust cup is configured such that the bottom portion can be opened and closed,

the inner cylinder portion includes: a lower end supported at the closed bottom of the dirt cup; and an upper end portion which is inserted into the insertion hole of the cup portion when the bottom portion of the dust cup is in a closed state and which can shield the inside of the inner cylinder portion and the second dust collecting chamber,

2. The dust collecting device according to claim 1,

the cup part further has an engaging opening into which the second centrifugal separation part is fitted,

a space surrounded by the cup portion, the inner cylinder portion, and the second centrifugal separation portion is provided as the second dust collecting chamber.

3. The dust collecting device according to claim 2,

the first centrifugal separation part further includes a biasing member that biases the inner tube part toward the closed bottom part of the dust cup.

4. A dust collecting device according to claim 3,

the centrifugal separation unit further comprises: a wiping portion provided between the second centrifugal separation portion and the cup portion so as to be rotatable with respect to the cup portion; and a rotating portion that rotates the wiping portion.

5. The dust collecting device according to claim 4,

the wiping unit includes a plurality of wiping blades that partition the plurality of centrifugal separation cylinders so as to be individually communicated with the second dust collection chamber.

6. The dust collecting device according to claim 5,

the inner cylinder part further includes a compression screw part provided on the lower end side and capable of compressing the first dust in the first dust collection chamber,

7. The dust collecting device according to claim 5 or 6,

the rotating portion and the second centrifugal separation portion are connected so as to be integrally rotatable and separable, and the second centrifugal separation portion and the wiping portion are connected so as to be integrally rotatable and separable.

8. The dust collecting device according to claim 7,

the wiping portion includes: an annular outer seal ring portion which is capable of sliding contact with an inner surface of the cup portion of the first centrifugal separation portion; an annular inner seal ring portion which is capable of sliding contact with an upper end portion of the inner cylindrical portion of the first centrifugal separation portion; and a plurality of wiper blades integrated with the cup portion so as to be capable of sliding in contact with a bottom portion of the cup portion and so as to connect the outer seal ring portion and the inner seal ring portion.

9. The dust collecting device according to claim 8,

the wiping sheet includes: a base end portion connected to the outer seal ring portion and the inner seal ring portion; and a tip portion that is capable of sliding contact with a bottom portion of the cup portion and has a thickness thinner than the base end portion.

10. The dust collecting device according to claim 8 or 9,

the outer seal ring portion of the wiping portion includes a concave peripheral groove opening downward on an inner peripheral surface side thereof,

11. The dust collecting device according to claim 10,

the support plate portion includes a rib that protrudes further downward than the outer seal ring portion of the wiping portion so as to be capable of sliding contact with a bottom surface of the cup portion.

12. The dust collecting device according to claim 11,

the ribs of the cup portion and the support plate portion are formed of different materials.

13. The dust collecting device according to claim 4,

the rotating portion includes: a lid member provided so as to cover the fitting opening of the cup portion of the first centrifugal separation portion; and a rotation mechanism portion provided to be rotatable with respect to the cover member,

14. The dust collecting device according to claim 13,

the first gear and the second gear are formed of different materials from each other.

15. An electric vacuum cleaner comprising a canister type vacuum cleaner main body which includes the dust collecting device according to any one of claims 1 to 14 and a driving device having a dust collecting device mounting portion to which the dust collecting device is detachably mounted and which is movable in a traveling direction on a floor surface,

the driving device includes: a housing constituting the dust collecting device mounting part; an electric blower provided in the housing; a power supply line that supplies electric power from an external power supply to the electric blower; a cord reel that winds the power cord in the housing so as to be able to be drawn out; and a winding start button for operating the cord reel to wind the drawn out power cord;

16. The electric vacuum cleaner of claim 15,

the dust collecting device mounting part of the driving device is arranged on the upper surface side of the shell so as to enable the dust collecting device to be mounted in a horizontal state, and a holding plate for holding the bottom of the dust cup of the dust collecting device is arranged on the upper surface of the shell in a protruding manner,

the winding start button is disposed at a position near the rear of the holding plate and at an intermediate position in the left-right direction.