JP2014079461A - Cyclone-type dust collection unit and vacuum cleaner therewith - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cyclone-type dust collection unit capable of performing a stable dust removal operation and cleaning a filter unit even in a state where a cup cover unit is open.SOLUTION: A cyclone-type dust collection unit includes: a closed-bottom cylindrical dust cup for centrifugally separating dust and collecting it at the bottom by letting air containing dust flow into and revolving the air inside; a filter unit, disposed above the dust cup, for filtering the air that has passed the dust cup; and a cup cover unit covering the filter unit, having a hinge part supported on one side of the cyclone-type dust collection unit, and enabled to open upward. Further, the dust cup includes inclination means formed so that the dust cup is opened with a side where the hinge part exists being lifted when the cyclone-type dust collection unit is placed on a level surface, with the filter unit and the cup cover unit attached to the dust cup.

Description

  The present invention relates to a cyclone dust collecting unit and a vacuum cleaner including the same.

  An electric vacuum cleaner in which a cyclone type dust collecting unit is detachably provided in a main body portion that houses an electric blower, wherein the dust collecting unit is formed in a bottomed cylindrical shape having a circular cross section having an opening surface on an upper surface. And a dust cup having an airflow inlet on its peripheral surface is known (for example, see Patent Document 1).

FIG. 29 is a side sectional view showing a main body of a conventional vacuum cleaner shown in Patent Document 1, and FIG. 30 is a side sectional view showing a lower part of a cyclone dust collecting unit provided in the vacuum cleaner. As shown in FIG. 29, the cleaner main body 712 is provided with an electric blower 716 at the rear, and an exhaust port 717 is opened behind the electric blower 716. A dust collection chamber 719 is provided in front of the electric blower 716, and a detachable dust collection unit 700 is disposed in the dust collection chamber 719. The upper surface of the dust collection unit 700 is covered with a cap cover 740 and a cap handle 741. When the cap handle 741 is lifted, the dust collection unit 700 and the cleaner body 712 are disengaged, and the dust collection unit 700 comes out of the dust collection chamber 719.
An inflow port 701 a into which the airflow from the suction hose 713 flows is provided at the front of the dust collection unit 700. An outflow duct 706 through which the airflow from which the dust has been removed flows out is provided on the upper rear surface of the dust collection unit 700. The outflow duct 706 and the electric blower 716 are connected by a duct 715. Arrows indicate air flow.

  As shown in FIGS. 29 and 30, the dust collection unit 700 includes a dust cup 701 that is formed in a bottomed cylindrical shape with an open upper end and has an airflow inlet 701 a on the peripheral surface. The dust cup 701 is formed of a resin (for example, ABS resin). The upper end of the dust cup 701 is covered with a removable cup cover 704. A filter unit 705 having a pleated filter is disposed inside the cup cover 704. The filter unit 705 has a circular shape in a plan view, and a dust removal mechanism portion 705a for dropping dust attached to the filter by hitting a rib on the upper part of the filter is provided on the upper portion of the filter unit 705 so as to be rotatable with respect to the filter. A through hole is formed in the center of the bottom of the cup cover 704, the inner cylinder 703 extends downward surrounding the through hole, and a dust partition 702 is connected to the lower end of the inner cylinder 703. The lower end of the dust partition 702 is fitted with a portion protruding upward from the bottom of the dust cup 701. The dust partition 702 and the inner cylinder 703 are arranged coaxially with the dust cup 701. A slit-like outlet 703 a is formed around the inner cylinder 703. A mesh filter (not shown) (hereinafter, mesh filter) (not shown) is attached to the outlet 703a. An outflow duct 706 is formed above the filter unit 705.

During the dust collection operation, air containing dust flows from the inflow port 701a. The airflow that flows in swirls along the inner peripheral side wall portion of the dust cup 701. Large dust falls by mass and accumulates at the bottom while turning along the inner peripheral side wall portion by centrifugal force during turning. The dust partition 702 prevents dust accumulated at the bottom from rising and flowing out from the outlet 703a. The swirled air ascends the inner cylinder 703 through the outlet 703a and passes through the filter unit 705. Small dust is captured by the mesh filter and filter unit 705 at the outlet 703a. The airflow passing upward through the filter unit 705 changes the flow direction to the horizontal direction along the outflow duct 706 and is guided to a duct on the main body (not shown).
When discarding the dust accumulated in the dust cup 701, the cup cover 704 covering the upper end of the dust cup 701 is removed, and the dust cup 701 is turned upside down to drop the dust from the opening 505.
Further, if fine dust captured by the filter unit 705 accumulates to some extent, the filter unit 705 is clogged. In order to drop the accumulated dust, a dust removing mechanism is provided on the upper part of the filter unit.

JP 2012-120561 A

When performing a dust removal operation for removing dust adhering to the filter unit 705, the user first extracts the dust collection unit 700 from the dust collection chamber 719. Thereafter, the cap unit in which the cap cover 740, the cap handle 741 and the outflow duct 706 are integrated is opened upward to expose the dust removing mechanism 705a. The cap unit is pivotally supported on one side of the cup cover 704 and can be opened and closed at an angle exceeding 90 ° upward.
When the user manually rotates the dust removal mechanism portion 705a with the cap unit opened, the rib on the top of the filter is struck and the dust attached to the filter falls due to vibration. The filter can be purified by removing the filter unit 705 and washing it with water or sweeping it with a brush.

When performing dust removal operation or removing and purifying the filter unit 705, the dust collecting unit 700 is usually placed on a horizontal surface such as a floor surface or a desk, and the cap unit is opened. However, as can be seen from FIG. 30, only the dust cup 701, the dust partition 702, and the inner cylinder 703 are provided in the lower part of the dust collecting unit 700, and the mass is concentrated on the upper part. At the top is a cup unit, a filter unit 705 and a cup cover 704.
Further, the above-described operation is performed in a state where the cap unit is opened upward at an angle exceeding 90 °. In this state, the center of gravity of the dust collection unit 700 is biased upward and to the side where the cap unit is pivotally supported, compared to the state where the cap unit is closed.
Therefore, the dust collection unit 700 tends to be unstable.
The present invention has been made in consideration of the above circumstances, and provides a cyclone type dust collection unit that can stably perform dust removal operation and filter unit purification even when the cap unit is opened. To do.

The present invention includes a bottomed cylindrical dust cup that centrifuges and collects dust at a bottom by flowing air containing dust and swirling inside, and is disposed above the dust cup. A filter unit that filters the passed air, and a cup cover unit that covers the filter unit and has a hinge portion that is pivotally supported on one side of the cyclone dust collecting unit and can be opened and closed upward. A cyclone type comprising tilting means formed so as to tilt in a state in which a side with the hinge portion is lifted when the filter unit and the cup cover unit are mounted and placed on a horizontal plane. Provide a dust collection unit.
Furthermore, this invention provides the vacuum cleaner provided with the said cyclone type dust collection unit.

  In the cyclone type dust collecting unit of the present invention, the dust cup includes a cup cover unit having a hinge portion pivotally supported on one side of the cup cover and capable of opening and closing upward, and the dust cup includes the inner cylinder. Since the unit, the filter unit, and the cup cover unit are mounted and placed on a horizontal surface, the cup cover unit has legs formed at the bottom so that the side with the hinge portion is tilted in a lifted state. The dust removal operation can be performed stably even when the is opened.

1 is an external perspective view of a vacuum cleaner according to an embodiment of the present invention. It is a top view of the cleaner body concerning an embodiment of this invention. It is a side view of the cleaner body concerning an embodiment of this invention. It is a 1st disassembled perspective view of the cleaner body concerning an embodiment of this invention (the circumference of a bogie and a wheel). It is a 2nd disassembled perspective view of the vacuum cleaner main body which concerns on embodiment of this invention (electric blower periphery). It is a 3rd disassembled perspective view of the vacuum cleaner main body which concerns on embodiment of this invention (duct periphery). It is a 4th disassembled perspective view of the cleaner main body which concerns on embodiment of this invention (code reel periphery). It is AA arrow sectional drawing of FIG. It is AA arrow sectional drawing of the state in which the dust collection unit was removed. It is AA arrow sectional drawing of the state in which the dust collection unit was removed. 1 is an external perspective view of a dust collection unit according to an embodiment of the present invention. It is AA arrow sectional drawing shown in FIG. 2 of the dust collection unit which concerns on embodiment of this invention. It is explanatory drawing which shows the flow path of the airflow in the cleaner body shown in FIG. It is principal part sectional drawing which shows the detailed structure of the ring-shaped wheel which concerns on embodiment of this invention. It is principal part sectional drawing which shows the detailed structure of the wiring board case which concerns on embodiment of this invention. It is a disassembled perspective view of the dust collection unit which concerns on embodiment of this invention. It is the exploded view seen from the side of the dust collection unit concerning the embodiment of this invention. It is a side view in the state where the cup cover unit of the dust collection unit concerning this embodiment was opened. It is a BB arrow sectional view shown in Drawing 2 in the state where the cup cover unit of the dust collection unit concerning this embodiment was opened. 1 is an external perspective view of a filter unit according to an embodiment of the present invention. It is a figure with the external appearance perspective view of the side wall member which comprises the dust cup which concerns on embodiment of this invention. It is a vertical sectional view of the side wall member shown in FIG. It is an external appearance perspective view of the bottom member which comprises the dust cup which concerns on embodiment of this invention. FIG. 24 is a vertical sectional view of a state in which the side wall member shown in FIG. 21 and the bottom member shown in FIG. 23 are fitted together. FIG. 20 is a view corresponding to FIG. 19 with the cup cover unit closed. It is an external appearance perspective view when the dust collection unit which concerns on embodiment of this invention is seen from lower side. It is an external appearance perspective view which shows the example of the filter unit of a different aspect from FIG. It is the external appearance perspective view which looked at the filter unit of FIG. 27 from diagonally downward. It is side surface sectional drawing of the conventional vacuum cleaner. It is side surface sectional drawing which shows the lower part of the cyclone type dust collection unit with which the conventional vacuum cleaner is provided.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. In addition, the following description is an illustration in all the points, Comprising: It should not be interpreted as limiting this invention.

[Overall description of the vacuum cleaner]
FIG. 1 is an external perspective view of a vacuum cleaner according to an embodiment of the present invention, and FIGS. 2 and 3 are a plan view and a side view of a vacuum cleaner body of the vacuum cleaner shown in FIG.

  As shown in these drawings, the vacuum cleaner 1 includes a vacuum cleaner body 100 in which a cyclone type dust collection unit 500 is detachably incorporated, and a suction hose portion 300.

  The suction hose part 300 includes a suction hose 301, an extension pipe 302, a suction part 303 connected to the tip of the extension pipe 302, a hand handle 304, an operation part 305 attached to the hand handle 304, and a connection part 306. Is provided.

  The suction hose 301 is detachably connected to the front of the cleaner main body 100 via the connection portion 306, and the user holds the hand handle 304 by hand while bringing the suction portion 303 at the tip of the extension pipe 302 into contact with the floor surface. Can be moved.

  Since the vacuum cleaner main body 100 is provided with a pair of ring-shaped wheels 140 on both sides and a free wheel 117 at the lower front, when the user moves while holding the hand handle 304 by hand, The operation can be followed.

  The vacuum cleaner main body 100 sucks dust on the floor together with air from the suction portion 303 to the dust collecting unit 500 via the extension pipe 302 and the suction hose 301.

  The user visually checks the dust collection status of the dust collection unit 500 inside the vacuum cleaner main body 100 from the central opening 141 of the ring-shaped wheel main body 110, and pulls out the dust collection unit 500 from the upper part of the vacuum cleaner main body 100 as appropriate. Dust collected in the unit 500 can be discarded.

  As shown in FIG. 2, a power cord insertion plug 131 of a cord reel (described later) and a brake button 132 for adjusting the length of the power cord are provided on the upper rear portion of the vacuum cleaner main body 100. .

  Further, since the cleaner body 100 includes the hand handle 115, the user can hold the hand handle 115 and lift and transport the cleaner body 100.

  4 to 7 are exploded perspective views of the cleaner body 100, FIG. 8 is a cross-sectional view taken along arrow AA in FIG. 2, and FIG. 9 corresponds to FIG. 8 in a state where the dust collection unit 500 is removed from the cleaner body 100. 10 and 10 are cross-sectional views taken along line BB in FIG. The configuration of the cleaner body 100 will be described with reference to these drawings.

  The vacuum cleaner main body 100 has an elongated cart 101 (see FIG. 4) constituting a lower portion thereof, and a lower first casing 102 (see FIG. 5) that is installed in front of the cart 101 and accommodates the electric blower 106 (see FIG. 5). See). Further, a second housing 103 (see FIG. 4) installed in the center of the carriage 101 for accommodating the dust collection unit 500 and a third casing 107 (installed at the rear of the carriage for accommodating the cord reel 108 ( 7). An exhaust port 133 is formed in the third housing 107.

  The electric blower 106 (see FIG. 5 and FIG. 8) is installed in the lower first housing 102 via a pedestal 122 (see FIG. 5) so that the rotation axis direction, that is, the blowing direction is directed in the direction of gravity. . A lower first housing cover 104 and a duct 105 shown in FIG. 6 are mounted on the lower first housing 102.

  The lower first housing cover 104 (see FIG. 6) includes a horizontal relay duct 104a and a vertical relay duct 104b on the upper surface. The duct 105 is provided to connect the outflow duct 571 (see FIG. 11) of the dust collection unit 500 to the vertical relay duct 104b (see FIG. 6) via the packing 124.

  The vertical relay duct 104 b is provided to connect the duct 105 to the electric blower 106. Packings 125 and 126 are respectively attached to the entrances and exits of the lateral relay duct 104a (see FIG. 6).

  The horizontal relay duct 104a is used to connect the connecting portion 306 (see FIGS. 1, 3 and 10) of the suction hose portion 300 to the inlet 503 (see FIG. 11) of the dust collecting unit 500 via the packings 125 and 126. Is provided.

As a result, the flow path from the connection part 306 of the suction hose part 300 to the inlet 503 of the dust collection unit 500 through the horizontal relay duct 104a, the duct 105 and the vertical relay duct 104b from the outflow duct 571 of the dust collection unit 500 are connected. A flow path to the electric blower 106 is formed.
Further, the inlet of the duct 105 connected to the outlet from the outlet duct 571 of the dust collecting unit 500 and the inlet of the horizontal relay duct 104a from the connecting part 306 of the suction hose part 300 are formed on the same surface side. . This is because the dust collection unit 500 is likely to be stable because the inlet is pulled in the same direction by the suction force of the electric blower 106 when cleaning.
A terminal portion 104c (see FIG. 6) for connecting a terminal (not shown) of the connecting portion 306 to the cleaner body 100 is provided on a side surface of the horizontal relay duct 104a and is covered with a terminal cover 123 from the outside. The printed wiring board 120 of the vacuum cleaner main body 100 and the operation unit 305 of the suction hose unit 300 are connected by wiring via the terminal and the terminal unit 104c.

  The lower first housing 102 includes a wiring board case 102a (see FIGS. 5 and 8) extending rearward. A printed wiring board 120 is accommodated in the wiring board case 102a, and a case bottom plate 119 is mounted. As shown in FIG. 5, the lower first housing 102 includes a filter 121 inserted between the electric blower 106 and the printed wiring board 120. The filter 121 is a resin porous plate.

  The lower first housing 102 (see FIG. 5) configured as described above is fixed to the front of the carriage 101, and the upper first housing 114 (see FIG. 6) having a hand handle 115 is mounted thereon. .

  On the other hand, the second casing 103 (see FIG. 4) installed in the center of the carriage 101 includes an upper opening 103a at the top, windows 103b on both sides, and a ring-shaped window frame 103c around the window 103b. .

  In addition, a lower flow path 138 (see FIG. 8) is formed between the bottom of the second housing 103 and the carriage 101 for flowing the air flow discharged from the electric blower 106 toward the third housing 107. Is done.

  Behind the carriage 101 are provided a cord reel 108 (see FIG. 7) for winding a power cord (not shown) so that it can be pulled out, and cord reel support plates 127, 128 for rotatably supporting the cord reel 108. They are covered by the third casing 107 (see FIG. 7).

  The third housing 107 accommodates the cord reel 108 so that the reel axis is parallel to the longitudinal direction of the carriage 101. Further, the third housing 107 includes an exhaust port 133 for discharging an air flow generated by the electric blower 106 and flowing through the lower flow path 138 to the rear of the cleaner body 100 via the cord reel 108. As a result, the power cord wound around the cord reel 108 is cooled when energized.

  A pair of arc-shaped reinforcing beams 109 shown in FIG. 4 are fixed to the carriage 101 so as to be coupled to the upper half of the ring-shaped window frame 103a of the second housing 103, and as shown in FIG. The first housing 114 and the third housing 107 are connected. As a result, the longitudinal rigidity of the cleaner body 100 is reinforced.

  Then, as shown in FIG. 4, a ring-shaped wheel 140, that is, a ring-shaped wheel guide 111, a ring-shaped wheel body 110, a ring-shaped wheel cover 112, and a circle from both sides of the semicircular arc-shaped reinforcing beam 109 and the carriage 101. An arcuate decorative cover 113 is attached.

  As shown in FIGS. 8 to 10, the dust collecting unit 500 is disposed between the pair of reinforcing beams 109 from above the cleaner body 100 with respect to the cleaner body 100 configured in this manner. It is loaded into the second casing 103 through the upper opening 103a (see FIG. 4).

The free wheel 117 is provided at a position directly below the electric blower 106 so as to be rotatable and turnable on the outer bottom surface of the carriage 101 via a free frame 116 (see FIG. 4).
Thus, the electric blower 106 is in front, the center of gravity is forward, and the free wheel 117 is also provided on the lower side of the electric blower 106, so that the front of the cleaner main body 100 can be prevented from floating when cleaning. The movement of the vacuum cleaner main body 100 due to the pulling of the suction hose 301 can be easily followed.

  Thus, in the vacuum cleaner main body 100, the electric blower 106, the dust collection unit 500, and the cord reel 108 are arranged in a line in the longitudinal direction from the front of the carriage 101 (the connection side of the suction hose part 300), and the flow path is Since they are provided above and below them, the width of the vacuum cleaner main body 100 is minimized.

  FIG. 11 is an external perspective view of the dust collection unit 500. 12 is a cross-sectional view of the dust collection unit 500 taken along the line AA in FIG. The dust collection unit 500 includes a cup cover unit 570, a filter unit 550, an inner cylinder unit 530, and a bottomed cylindrical dust cup 501.

  The dust cup 501 is formed of a transparent or translucent resin so that the dust collection state can be visually observed from the outside. As shown in FIG. 11, an inflow port 503 into which an air flow from the suction hose unit 300 (see FIG. 1) flows is provided on the front peripheral surface of the dust cup 501.

Referring to FIG. 10, the connection portion 306 of the suction hose portion 300 is bent from the center of the cleaner body 100 so that air flows straight into the inner circumferential surface of the cylindrical dust cup 501 from its tangential direction. doing.
Referring to FIG. 12, the inner cylinder unit 530 includes an upper cup cover 537 that houses the filter unit 550, a lower dust partition 535, and an inner cylinder 533 that connects between them. An opening is formed at the bottom of the cup cover 537 to which the inner cylinder 533 is connected. A slit-like outlet 533b is formed around the inner cylinder 533, and a mesh-like filter (not shown) is disposed at the outlet 533b. The dust partition 535 includes a flange portion 535 a having an outer diameter larger than that of the inner tube 533, a large-diameter tube portion 535 b surrounding the outer periphery of the flange portion, and a small-diameter tube portion 535 c whose lower end is in contact with the bottom center portion of the dust cup 501.

  When the electric blower 106 is operated, the air flow flows straight into the dust cup 501 in the circumferential tangent direction via the connecting portion 306 and the lateral relay duct 104a, and forms a high-speed swirling air flow in the dust cup 501.

Thereby, the dust contained in the airflow is centrifuged. Since the dust collecting unit 500 is installed so that the central axis of the swirling airflow to be formed faces the direction of gravity, the heavy dust among the centrifugally separated dust is accumulated below the flange portion 535a by the action of gravity. .
Here, the center axis of the swirling airflow of the dust collection unit 500 being directed in the direction of gravity does not require the center axis of the swirling airflow to be directly below, and the dust collection unit 500 is directed to the cleaner body 100 in the vertical direction. It only has to be arranged.

  A light thing is filtered with the mesh-like filter arrange | positioned in the outflow port 533b with an air flow. In addition, minute dust rises in the inner cylinder 533 through the outlet 533b and is filtered by the filter unit 550. The filter unit 550 includes a pleated filter in which a peak portion and a valley portion are continuous. The filtered air flow is sucked into the electric blower 106 through the outflow duct 571.

FIG. 13 is an explanatory view showing airflow paths in the cleaner body 100 shown in FIG.
As shown in the figure, the air flow from the suction hose 301 flows into the dust collection unit 500 through the connection portion 306 and above the electric blower 106.

  The inflowing air flow becomes a swirl flow in the dust cup 501 of the dust collection unit 500. After the dust collection is centrifuged, the air flow rises in the inner cylinder 533, passes through the filter unit 550, passes through the electric blower 106, and is below the dust collection unit 500 in the vertical direction of the carriage 101. Enters the lower flow path 138 formed in

  The air flow passes through the wiring board case 102 a installed in the lower flow path 138 while cooling the printed wiring board 120, and then is distributed through the cord reel 108. The dispersed air flow is discharged to the outside from an exhaust port 133 provided on the back surface of the third housing 107.

  Therefore, the noise that tries to go out from the electric blower 106 in the air flow is attenuated by the long lower flow path 138 formed in the vertical direction of the carriage 101 below the dust collection unit 500, and the lower flow path. It is dispersed and absorbed by the wiring board case 102 a in 138 and the cord reel 108 in the third housing 107. Thereby, the noise of the electric blower 106 going out from the cleaner body 100 is effectively reduced.

  Further, as shown in FIG. 13, the flow path of the air flow is provided separately at the upper part and the lower part of the cleaner body 100 and is not provided at the side surface portion, so the lateral width of the cleaner body 100 is minimized. ing.

  FIG. 14 is a cross-sectional view of the main part showing the detailed configuration of the ring-shaped wheel 140. FIG. 14 shows a longitudinal section in a direction perpendicular to the rotation direction of the ring-shaped wheel 140, and the left side when viewed from the paper is the carriage 101 side. As shown in the figure, in the ring-shaped wheel 140, a ring-shaped wheel guide 111 having lubricity is attached over the upper reinforcing beam 109 and the lower cart 101.

  A ring-shaped wheel main body 110 is slidably fitted to the ring-shaped wheel guide 111 on the outer peripheral side of the ring-shaped wheel guide 111. Further, on the outside of the ring-shaped wheel guide 111 and the ring-shaped wheel main body 110, a ring-shaped wheel cover 112 is fixed to the window frame 103c of the second housing 103, and the ring-shaped wheel main body 110 is separated from the ring-shaped wheel guide 111. Prevent falling out.

Then, an arcuate decorative cover 113 is attached so as to cover the ring-shaped wheel 140 from above the reinforcing beam 109. In this way, the ring-shaped wheel 140 having the central opening 141 at the center is formed.
In this embodiment, although the case where the ring-shaped wheel 140 has the center opening 141 in the center part was demonstrated, this invention is not limited only to it. For example, instead of the ring-shaped wheel cover 112, a wheel cover configured not to have an opening at the center and to cover the central portion of the side surface of the cleaner body 100 may be used. In this case, at least a part of the wheel cover is formed of, for example, a resin having transparency, so that the dust collection state of the dust collection unit 500 can be visually observed as in the present embodiment. it can. Moreover, by comprising in this way, the rigidity of the longitudinal direction of the cleaner body 100 can be reinforced, keeping the horizontal width of the cleaner body 100 small.

  FIG. 15 is a cross-sectional view of a principal part showing a detailed configuration of the wiring board case 102a. As shown in the figure, a printed wiring board 120 on which a control component for controlling the electric blower 106 and a circuit are mounted is installed in a wiring board case 102a having a large number of ventilation holes.

  The printed wiring board 120 is suspended in the wiring board case 102a by a suspension member 143 so as to protect the printed wiring board 120 from mechanical shocks from the outside.

  The bottom of the wiring board case 102a is closed by a case bottom plate 119 having a large number of ventilation holes. The large number of ventilation holes in the wiring board case 102a and the case bottom plate 119 allow the air flow from the electric blower 106 to pass through the wiring board case 102a in the lower flow path 138 and cool the printed wiring board 120 efficiently. Is provided to do.

  As described above, the resin-made porous plate filter 121 is provided on the wall of the wiring board case 102a on the electric blower 106 side to prevent debris such as motor brushes from entering the wiring board case 102a from the electric blower 106. ing. Note that an elastic member is preferably used for the suspension member 143.

[Description of dust collection unit and dust removal mechanism]
FIG. 16 is an exploded perspective view of the dust collection unit 500. FIG. 17 is an exploded view seen from the side of the dust collection unit 500. 18 is a side view seen from the front side when the dust collection unit 500 is placed on the horizontal surface H with the cup cover unit 570 open, and FIG. 19 is a view of the dust collection unit 500 taken along the line BB shown in FIG. It is sectional drawing. FIG. 20 is an external perspective view of the filter unit 550. 27 and 28 are external perspective views of a filter unit 550 having a mode different from that in FIG.

  As shown in FIGS. 16 to 20, the cup cover unit 570 is disposed on the upper side of the cup cover main body 573 so that the cup cover handle 591 and the cup cover handle cover 597 that are curved in a substantially spherical shape cover the cup cover main body 573. Has been. A hinge portion 573 a is formed at the lower end of the side surface of the cup cover main body 573, and is supported by the shaft support portion 538 b of the cup cover 537. By releasing the lock by sliding the release lever 538c, the cup cover unit 570 can be opened upward and the filter unit 550 accommodated in the cup cover 537 can be exposed.

A dust removal handle 583 is provided between the rear end of the cup cover handle 591 and the cup cover handle cover 597 so as to be slidable in the left-right direction. When the user picks up the dust removal handle 583 and reciprocates left and right, the dust removal lever (not shown) pivotally supported with respect to the cup cover body 573 swings. A first interlocking gear 575 is attached to the lower end of the shaft of the dust removal lever. When the cup cover unit 570 is closed, the first interlocking gear 575 meshes with the second interlocking gear 554a above the dust removal frame 553.
Further, the cup cover main body 573 constitutes an outflow duct 571 that guides the airflow rising through the filter unit 550 to the duct 105 (see FIG. 8) on the front side of the cleaner main body 100. The downstream end of the outflow duct 571 opens at the front end of the cup cover body 573.

The dust cup 501 is formed with an inflow port 503 extending from the peripheral side surface along the normal direction of the peripheral side surface, and the tip of the dust cup 501 ensures connection with the horizontal relay duct 104a (see FIG. 10) on the main body side. A flange 503a is formed. The opening 505 at the upper end of the dust cup is airtightly fitted to a circular fitting portion 537c (see FIG. 19) formed below the inclined surface portion 537b of the cup cover 537, and is fixed to the cup cover 537 by a hook lever 507. The By releasing the hook lever 507, the dust cup 501 and the cup cover 537 are separated, and the dust accumulated in the dust cup 501 can be discarded.
At the center of the bottom surface of the dust cup, a protrusion 511a protrudes upward, and legs 511f1 and 511f2 protrude downward (see FIG. 19).

The funnel-shaped cup cover 537 has a bottom opening 537d at the center of the inclined surface portion 537b (see FIG. 16). An inner cylinder 533 is connected below the bottom opening 537d, and a dust partition 535 is connected to the lower end of the inner cylinder 533. The dust partition 535 includes a flange portion 535a, a large diameter cylindrical portion 535b, and a small diameter cylindrical portion 535c, and the lower end of the small diameter cylindrical portion 535c extends downward from the large diameter cylindrical portion 535b. When the inner cylinder unit 530 is attached to the dust cup 501, the lower end of the small diameter cylinder part 535 c is fitted with the protrusion part 511 a of the dust cup 501. At this time, the inner cylinder 533 and the dust partition 535 are arranged coaxially with the dust cup 501 (see FIG. 19).
A rectangular enlarged portion 537a is provided above the inclined surface portion 537b of the cup cover 537 and accommodates the filter unit 550.

The filter unit 550 includes a filter portion 551 and a dust removal mechanism portion 557 (see FIG. 20).
The filter unit 551 includes a filter body 551a using a HEPA filter (High Efficiency Particulate Air Filter) and a flexible filter frame 551b. The filter frame 551b has a substantially rectangular frame portion 551b3 that fits in the enlarged portion 537a of the cup cover 537, side end portions 551a2 arranged along a pair of opposite sides of the frame portion 551b3, and a central portion of the filter frame 551b. And a cylindrical portion 551b1 through which the dust removing shaft 554 is inserted (see FIGS. 19 and 20).

  A skeleton that supports the filter main body 551a is formed by the cylindrical portion 551b1, the side end portion 551a2, and the frame portion 551b3. The filter body 551a is formed in a pleat shape, and a plurality of upper ribs 551a1 extend in parallel at the upper end, and are supported by being joined to the side end portion 551a2 and the cylindrical portion 551b1.

A dust removal frame 553 that is rotatable about the filter portion 551 is provided as a dust removal mechanism portion 557 for removing dust adhering to the filter portion 551 at the upper portion of the filter portion 551. The dust removal frame 553 is rotatably supported with respect to the filter portion 551 by a dust removal shaft 554 (see FIG. 19) that penetrates the cylinder portion 551b1. A second interlocking gear 554 a is formed on the upper surface of the center portion of the dust removal frame 553. Further, the dust removal frame 553 has a plurality of arm portions 553b extending radially from the center portion and a circular ring portion 553c continuous to the tip of the arm portion 553b. In addition to the arm portion 553b, a plurality of sliding portions 553a are disposed between the center portion and the circular ring portion 553c (see FIGS. 20, 27, and 28).
Note that the filter unit shown in FIG. 20 includes three sliding portions 553a and three dust removal wipers 555. On the other hand, the filter unit 550 shown in FIGS. 27 and 28 includes six sliding portions 553a. Further, six dust removal wipers 555 are provided. This is an embodiment in which the moving range of the dust removal handle 583 is limited and the number of sliding portions 553a is six in order to efficiently remove dust within the moving range.

  In the sliding portion 553a, a sliding contact member 553a3 having a hemispherical shape at the lower end is accommodated in a state suspended from the coil spring 553a2. The sliding contact member 553a3 is a rod-like member, and the lower end portion of the coil spring 553a2 is wound around the upper end portion. The upper end portion of the coil spring 553a2 has a larger winding diameter than the lower end portion, and has a T-shape when the coil spring 553a2 is viewed from the side. A through hole 553e is formed in the sliding portion 553a that spans between the center portion of the dust removal frame 553 and the circular ring portion 553c. The sliding contact member 553a3 around which the coil spring 553a2 is wound is inserted into the through hole 553e from above. The winding diameter of the upper end portion of the coil spring 553a2 is larger than the diameter of the through hole 553e, and the sliding contact member 553a3 is suspended from the coil spring 553a2. The lower end of the sliding contact member 553a3 protrudes from the lower surface of the dust removal frame 553 by a predetermined length. The cap member 553a1 is fitted from above the through hole 553e, and the upper end portion of the coil spring 553a2 is sandwiched and fixed between the sliding portion 553a and the cap member 553a1.

  When the dust removal frame 553 rotates, the hemispherical portion at the lower end of the sliding contact member 553a3 contacts the upper rib 551a1 of the filter body 551a. When further rotating, the coil spring 553a2 passes through the upper rib 551a1 while being bent. At that time, the upper rib 551a1 contacting the sliding contact member 553a3 vibrates and the dust attached to the filter body 551a falls.

In a state where the cup cover unit 570 is closed, the second interlocking gear 554a meshes with the first interlocking gear 575. When the user reciprocates the dust removal handle 583 left and right, a dust removal lever (not shown) in the cup cover main body 573 and the first interlocking gear 575 fixed thereto are alternately rotated clockwise and counterclockwise. As the first interlocking gear 575 rotates, the dust removal frame 553 rotates integrally with the second interlocking gear 554a that meshes therewith. When the dust removing frame 553 rotates, the upper rib 551a1 of the filter main body 551a is hit by the dust removing member of the sliding portion 553a. Thereby, the dust collected by the filter part 551 falls off to the inclined surface part 537b of the cup cover 537.
The dust removal frame 553 is provided with a knob 553b2. The user can also open the cup cover unit 570 to expose the upper portion of the filter unit 550, and can grip the knob 553b2 to rotate the dust removal frame 553.

A dust removal wiper 555 that sweeps the inclined surface portion 537 b is attached below the dust removal shaft 554. The dust removal wiper 555 rotates in conjunction with the shaft rotation of the dust removal frame 553. Dust that has fallen to the inclined surface portion 537b is swept by the dust removing wiper 555, and falls from the bottom opening 537d to the inside of the small-diameter cylindrical portion 535c through the inner cylinder 533.
As described above, the dust removal of the filter unit 551 is performed. The lower end of the small diameter cylindrical portion 535c is fitted with the protruding portion 511a of the dust cup 501. An outer peripheral recess 511b is formed on the outer peripheral surface of the protrusion 511a. A ring-shaped packing 511e (see FIGS. 12 and 19) is fitted into the outer peripheral recess 511b.

[Dust cup configuration]
FIG. 21 is an external perspective view of the side wall member constituting the dust cup according to the embodiment of the present invention, and FIG. 22 is a vertical sectional view of the side wall member. FIG. 23 is an external perspective view of the bottom member constituting the dust cup. FIG. 24 is a vertical sectional view showing a state in which the side wall member and the bottom member are fitted together. FIG. 25 is a view corresponding to FIG. 19 with the cup cover unit 570 closed. FIG. 26 is an external perspective view of the dust collection unit 500 as viewed from below.
The configuration of the dust cup 501 will be described with reference to FIGS.
The dust cup 501 is fitted with a lower end fitting portion 502a of a cylindrical side wall member 502 having both ends 503 and an attachment portion 504 and an upper end fitting portion 511d of a bottom member 511, and is hermetically sealed by ultrasonic fusion. Joined and configured. Further, the hook lever 507 is attached to the attachment portion 504.

  The side wall member 502 has an inner diameter that is gradually increased from the upper opening 505 side toward the lower lower end fitting portion 502a. There is no step. The dust cup is made of resin, and the direction in which the mold that forms the inner peripheral wall surface of the side wall member 502 is pulled out is downward. When the central axis of the inner peripheral wall surface coincides with the vertical direction, the inner peripheral wall surface is inclined within a range of 0.1 to 1.2 degrees with respect to the vertical direction, and is further away from the central axis as it goes downward. A preferable tilt accuracy is 0.2 to 0.9 degrees, and a more preferable tilt accuracy is 0.5 degrees. Since the inner diameter is larger toward the bottom of the dust cup, the dust swirling along the swirling airflow is easily directed toward the bottom.

  However, if the tilt angle is too large, the dust cup 501 is turned upside down so that it is difficult for the dust to fall when attempting to drop the dust downward from the opening 505. Dust containing fibers, hair, and the like is compressed into a ring shape by the swirling airflow and collected at the bottom of the dust cup 501. In this state, when the dust cup 501 is turned upside down and the accumulated dust is to be dropped from the opening 505, if the inner diameter of the opening 505 is too small compared to the inner diameter of the bottom where dust accumulates, Can be used in the middle of Therefore, there is a suitable range for the tilt angle. Further, it is extremely preferable that the inner peripheral wall surface be smoothly inclined without forming a step that prevents the dust from falling.

The bottom member 511 is a dish-shaped member that has an inner diameter that gradually decreases from the upper end fitting portion 511d toward the bottom and leads to a flat bottom surface. A protrusion 511a is formed at the center of the bottom member 511 so as to face upward. An outer peripheral recess 511b is formed on the outer peripheral surface of the protrusion 511a. The protrusion 511a and the outer peripheral recess 511b are molded integrally with the bottom member 511. A ring-shaped packing 511e (see FIGS. 19 and 24) is fitted into the outer peripheral recess 511b.
The inner diameter of the upper end fitting portion 511d is equal to or less than the inner diameter of the lower end fitting portion 502a of the side wall member 502.

  The packing 511e is made of an elastic member such as rubber, and seals the inner wall of the lower end portion of the small diameter cylindrical portion 535c in a state where the inner cylindrical unit 530 is mounted. When the dust removing mechanism portion 557 is operated, fine dust dropped from the filter main body 551a falls and accumulates inside the small diameter cylindrical portion 535c (see FIG. 19). Since the packing 511e seals the inner wall of the lower end portion of the small-diameter cylindrical portion 535c and the protruding portion 511a, the accumulated fine dust does not leak to the bottom of the dust cup 501 and rise by the airflow. If there is no seal of the packing 511e, the leaked fine dust will rise in the air flow and clog the filter portion 551.

  A rib 511 c is formed integrally with the bottom member 511 on the flat bottom surface of the bottom member 511. The rib 511c protrudes upward from the bottom surface and prevents dust, particularly fibers and hair, accumulated on the bottom surface from moving on the bottom surface due to the swirling airflow. The dust whose rotation is prevented by the rib 511c is compressed by the airflow before the rib 511c. As the dust collection progresses, the dust gradually becomes a large lump and accumulates at the bottom of the dust cup 501 in a state where it can be easily discarded.

Furthermore, legs 511f1 and 511f2 projecting downward are formed integrally with the bottom member 511 on the flat bottom surface of the bottom member 511. The legs 511f1 and 511f2 are formed such that when the dust collection unit 500 is placed on a horizontal plane, the side where the shaft support portion 538b is located is lifted slightly upward and tilted (see FIGS. 18, 19 and 25). Due to this inclination, the center of gravity is stabilized even when the cup cover unit 570 is opened, and the dust collection unit 500 is not easily tilted.
The legs 511f1 and 511f2 correspond to the tilting means of the present invention. However, the legs 511f1 and 511f2 are examples of the tilting means, and the tilting means is not limited to the legs. For example, it is conceivable that the tilting means may be tilted by varying the thickness of the bottom of the dust cup, or by extending the side wall of the dust cup downward and varying the length extending from the bottom at each location.

  As can be seen from FIG. 19, the dust collection unit 500 has a relatively high center of gravity because the mass is concentrated in the upper half rather than the lower half. When the cup cover unit 570 is opened, the center of gravity tends to be biased to the side where the shaft support portion 538b is located and becomes unstable. However, since the legs 511f1 and 511f2 incline the dust collection unit 500, the stability is more easily maintained. Therefore, it is easy to operate the knob 553b2 with the cup cover unit 570 opened to remove dust from the filter unit 551, and to attach / detach the filter unit 550 and the inner cylinder unit 530.

  As shown in FIG. 26, the legs 511f1 and 511f2 are formed at three locations on the bottom surface of the dust cup 501. A central leg 511f1 is formed immediately below the shaft support 538b, and left and right legs 511f2 are formed at a distance from both sides thereof. The leg 511f1 is higher than the left and right legs 511f2. Due to the presence of the left and right legs 511f2, stability in the direction along the axis of the shaft support portion 538b is maintained.

  As described above, the cyclone type dust collecting unit of the present invention has a cylindrical dust cup with a bottom that collects the dust by centrifuging and collecting the dust by inflowing air containing dust and swirling the dust inside, A filter unit that is arranged above the dust cup and filters the air that has passed through the dust cup, and has a hinge part that covers the filter unit and is pivotally supported on one side of the cyclone dust collecting unit. And the dust cup is formed so that the side with the hinge portion is inclined when the filter unit and the cup cover unit are mounted and placed on a horizontal surface. It is characterized by having an inclined means.

Furthermore, the preferable aspect of this invention is demonstrated.
The tilting means may be a leg formed at the bottom of the dust cup.
In the dust cup, a first leg may be formed at a bottom portion on the side where the hinge portion is located, and a pair of legs may be formed with the first leg interposed therebetween. In this way, there is a pair of legs in the direction along the axis of the hinge, so that it is stable.

  The dust cup may have a leg formed integrally with the bottom. This is advantageous in terms of cost and strength as compared with the case where the bottom and legs of the dust cup are made of different members.

Furthermore, the filter unit comprises a filter part and a dust removal mechanism part provided above the filter part, and the cup cover unit has a dust removal handle for operating the dust removal mechanism part in a closed state, The dust removal mechanism may include a knob that operates the dust removal mechanism in a state where the cup cover unit is opened. If it does in this way, when the cup cover unit is opened and the knob is operated to operate the dust removal mechanism, a stable operation with the legs becomes possible.
Preferred embodiments of the present invention include combinations of any of the plurality of embodiments shown here.

This invention will be described more specifically.
In the present invention, the dust cup is preferably a transparent or translucent resin member. Specifically, an ABS resin can be applied, but is not limited thereto, and for example, a polycarbonate resin, a polypropylene resin, a polyvinyl chloride resin, and the like are also applicable. In the embodiment described above, ABS resin is applied. However, it is not limited to resin.
The inner cylinder unit is detachably attached to the upper end opening of the dust cup, and has an outlet that allows the air in the dust cup to flow out to the upper filter unit. The outlet is disposed near the central axis of the substantially cylindrical dust cup.
The filter unit includes a filter that filters fine dust contained in the air after centrifugation, and a dust removal mechanism that drops dust attached to the filter. Preferably, a HEPA filter (High Efficiency Particulate Air Filter) is applied to the filter, but the present invention is not limited to this.
The cup cover unit has a hinge portion pivotally supported on one side of the cup cover and can be opened and closed upward, and constitutes a part of a duct that guides air that has passed through the filter unit in a closed state. . Further, the dust removing mechanism portion of the filter unit is exposed in the open state, thereby enabling manual operation of the dust removing mechanism portion.
In addition to the embodiments described above, there can be various modifications of the present invention. These modifications should not be construed as not belonging to the scope of the present invention. The present invention should include the meaning equivalent to the scope of the claims and all modifications within the scope.

DESCRIPTION OF SYMBOLS 1: Electric vacuum cleaner, 100: Vacuum cleaner main body, 101: Carriage, 102: Lower 1st housing | casing, 102a: Wiring board case, 103: 2nd housing | casing, 103a: Upper opening, 103b: Window, 103c: Window frame 104: Lower first housing cover, 104a: Horizontal relay duct, 104b: Vertical relay duct, 104c: Terminal section, 105: Duct, 106: Electric blower, 107: Third housing, 108: Cord reel, 109: Reinforcement beam, 110: Ring-shaped wheel body, 111: Ring-shaped wheel guide, 112: Ring-shaped wheel cover, 113: Arc-shaped decorative cover, 114: Upper first casing, 115: Hand handle, 116: Swivel frame, 117 : Swivel wheel, 119: Case bottom plate, 120: Printed wiring board, 121: Filter, 122: Pedestal, 123: Terminal cover, 124, 125, 126: Packing, 127, 128: Cord reel support plate, 131: Insert plug, 132: Brake button, 133: Exhaust port, 138: Lower flow path, 140: Ring-shaped wheel, 141 : Central opening, 143: Suspension member, 300: Suction hose part, 301: Suction hose, 302: Extension pipe, 303: Suction part, 304: Hand handle, 305: Operation part, 306: Connection part, 500: Dust collection 501: Dust cup, 502: Side wall member, 502a: Lower end fitting portion, 503: Inlet, 503a: Flange, 504: Mounting portion, 505: Opening portion, 507: Hook lever, 511: Bottom member, 511a: Protruding part, 511b: outer peripheral concave part, 511c: rib, 511d: top fitting Part, 511e: packing, 511f1, 511f2: legs, 530: inner cylinder unit, 533: inner cylinder, 533b: outlet, 535: dust partition, 535a: flange part, 535b: large diameter cylinder part, 535c: small diameter cylinder part 537: Cup cover, 537a: Enlarged portion, 537b: Inclined surface portion, 537c: Circular fitting portion, 537d: Bottom opening, 538b: Shaft support portion, 538c: Release lever, 550: Filter unit, 551: Filter portion, 551a: Filter body, 551a1: upper rib, 551a2: side end, 551b: filter frame, 551b1: tube portion, 551b3: frame portion, 553: dust removal frame, 553a: sliding portion, 553a1: cap member, 553a2: coil spring, 553a3 : Sliding contact member, 553b : Arm part, 553b2: Knob, 553c: Circular ring part, 553e: Through hole, 554: Dust removal shaft, 554a: Second interlocking gear, 555: Dust removal wiper, 557: Dust removal mechanism part, 570: Cup cover unit, 571: Outflow duct, 573: Cup cover body, 573a: Hinge part, 575: First interlocking gear, 583: Dust removal handle, 591: Cup cover handle, 597: Cup cover handle cover, 700: Dust collecting unit, 701a: Inlet, 701: Dust cup, 702: Dust partition, 703: Inner cylinder, 703a: Outlet, 704: Cup cover, 705: Filter unit, 705a: Dust removal mechanism, 706: Outflow duct, 712: Vacuum cleaner body, 713: Suction Hose, 715: duct, 716 : Electric blower, 717: exhaust port, 719: dust collecting chamber, 740: cap cover, 741: cap handle

Claims (5)

A cylindrical dust cup with a bottom that accumulates dust at the bottom by centrifuging the dust-containing air and turning it inside, and a dust cup that is placed above the dust cup and filtered through the dust cup A filter unit to
A cup cover unit that covers the filter unit and has a hinge portion that is pivotally supported on one side of the cyclone dust collecting unit, and is openable and closable upward.
The dust cup has tilting means formed so as to tilt in a state where the side with the hinge portion is lifted when the filter unit and the cup cover unit are mounted and placed on a horizontal plane. Cyclone type dust collecting unit.   The cyclone type dust collecting unit according to claim 1, wherein the tilting means is a leg formed at the bottom of the dust cup.   The said dust cup has a 1st leg formed in the bottom part of the side with the said hinge part, and the leg which makes a pair on both sides of a 1st leg is formed, The Claim 1 or 2 characterized by the above-mentioned. Cyclone type dust collection unit.   The cyclone type dust collecting unit according to claim 1, wherein the dust cup has legs formed integrally with a bottom portion.   A vacuum cleaner provided with the cyclone type dust collection unit as described in any one of Claims 1-4.