JP6088784B2 - Dust collection unit and vacuum cleaner provided with the same - Google Patents

Description

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

  As a dust collecting unit (conventional technology 1) of a conventional cyclone type electric vacuum cleaner, a bottomed cylindrical dust collecting container having an airflow inlet on a peripheral surface and an upper opening of the dust collecting container are disposed. A filter having a cross-sectional waveform, a rotating body having a shaft portion that is rotatably supported with respect to the filter, a handle for rotating the rotating body, and a flexible body that rotates integrally with the rotating body and strikes the filter. There has been proposed a dust collection unit including a dust removing member, and an openable / closable cover that covers a rotating body, a handle, and a filter (see, for example, Patent Document 1).

  In the case of the prior art 1, when removing the dust from the filter, the cover is first opened to expose the handle to the outside. Then, by rotating the handle, the dust removing member is rotated together with the rotating body, and the filter is hit by the rotating dust removing member to remove dust.

  Further, as another dust collecting unit (conventional technology 2) of a cyclone type vacuum cleaner, it has the same configuration as the configuration of the dust collecting unit of conventional technology 1 (excluding the handle of the rotating body), Another shaft portion (upper shaft portion) provided through the cover on the same axis as the shaft portion (lower shaft portion) of the rotating body, an operation handle provided at the upper end of the upper shaft portion, There has been proposed a dust collection unit including a first gear provided at the lower end of the shaft portion and a second gear provided at the upper end of the lower shaft portion and meshing with the first gear (see, for example, Patent Document 2). ).

  In the case of Prior Art 2, when removing dust from the filter, the dust removal member can be rotated together with the rotating body by rotating the operation handle without opening the cover, and the filter can be removed by hitting the filter with the rotating dust removal member. .

JP 2012-50669 A JP 2011-78461 A

  In the case of the prior art 1, since the handle is covered with the cover, the user must open the cover each time the filter dust is removed, and it takes a long time to operate the handle (dust removal operation). It was. Further, since the handle covered with the cover cannot be seen from the outside, the filter dust removal is not naturally aroused by the user looking at the handle. Therefore, there is a tendency that the frequency of filter dust removal after cleaning by the user tends to decrease, so that the filter is likely to be clogged, and if the clogging occurs, there is a problem that the dust collecting performance of the cleaner is lowered. .

  In the case of the prior art 2, the dust removal operation of the filter can be performed by turning the operation handle without the trouble of opening the cover. However, since the operation handle is a dust collection unit that protrudes upward from the cover, the height of the dust collection unit becomes high. Then, the vacuum cleaner main body is designed to be in harmony with the overall height. . Therefore, the main body of the cleaner tends to increase in size and increases in weight, which is a disadvantageous structure for facilitating the handling and carrying of the cleaner main body during cleaning.

  The present invention has been made in view of such circumstances, and provides a dust collection unit that can easily perform a dust removal operation of a filter without increasing the size of the structure, and a vacuum cleaner including the dust collection unit. For the purpose.

Thus, according to the present invention, a dust cup having an opening for discharging the inlet and the airflow introducing the air flow containing dust to the dust collecting the separated dust by the whirling air current,
A filter portion covering the opening of the dust cup;
A dust removing mechanism attached to the filter part;
A cup cover unit that covers the dust removing mechanism part and the filter part and has an airflow outlet,
The dust removal mechanism has a sliding part that can slide relative to the filter part,
The cup cover unit has a portion exposed to the outside, and includes a dust removal operation unit configured to transmit a force in a reciprocating direction manually by the sliding unit,
The dust removal operation unit has a cup cover shaft that is rotatably provided on the cup cover unit.
The dust removing mechanism part further has a dust removing shaft that penetrates the filter part in a vertical direction,
The cup cover shaft has a first interlocking gear at an end facing the dust removal shaft;
Have a second interlocking gear the dust shaft is the first interlocking gear meshing on the end facing the cup cover shaft,
The cup cover unit further includes a cup cover body and a cup cover handle,
The dust removal operation section includes the cup cover shaft that is rotatably provided on the cup cover body, and a dust removal lever that is fixed to the cup cover shaft in a direction perpendicular to the axis of the cup cover shaft. And
The cup cover handle is provided on the cup cover main body so as to cover a base end side of the dust removing lever fixed to the cup cover shaft.
The tip of the dust removal lever is exposed to the outside,
A dust collection unit is provided in which the tip of the dust removal lever is disposed in the vicinity of the tip of the cup cover handle .

  Moreover, according to another viewpoint of this invention, the vacuum cleaner provided with the vacuum cleaner main body which incorporates the said dust collection unit and an electric blower, and the suction inlet connected with this vacuum cleaner main body is provided.

According to the dust collection unit of the present invention, since the dust removal operation portion has a portion exposed to the outside, the user can perform filter dust removal without having to open the cup cover unit. At this time, when the user moves the dust removal operation part in the reciprocating direction, the sliding part slides in the reciprocating direction with respect to the filter part. Shake off.
Further, when the user visually observes the portion exposed to the outside of the dust removal operation unit, filter dust removal is naturally alerted.
As a result, it is possible to suppress a decrease in the frequency of filter dust removal after cleaning by the user. Therefore, it becomes difficult to clog a filter part and it can prevent that the dust collection performance of a cleaner falls.

Further, according to the dust collection unit of the present invention, the dust removal operation portion can be configured not to protrude in the height direction from the cup cover unit, so the height of the dust collection unit does not increase, and the vacuum cleaner The height of the body will not increase. Thus, since the dust collection unit of the present invention has a structure advantageous for reducing the size of the cleaner body, it is possible to obtain a lightweight cleaner body that can be easily handled and transported during cleaning.
In addition, the force that rotates the tip of the dust removal lever in the reciprocating movement direction around the cup cover shaft while allowing the cup cover unit to be opened and closed is the force that rotates the dust removal frame and the sliding part via the dust removal shaft. Can be easily transmitted.
Further, it is possible to realize a dust removal operation in which the tip of the dust removal lever is rotated in the reciprocating direction around the cup cover shaft. In addition, since the base end of the dust removal lever is hidden and the tip of the dust removal operation is exposed to the outside, the appearance is good and it is easy to alert the user to the dust removal operation.
Also, since the tip of the cup cover handle is the part that the user grips with the hand when picking up the dust collection unit, the dust removal lever is located near the hand where the user grips the cup cover handle when throwing away the dust in the dust collection unit. The tip (dust removal operation part) of is located. Therefore, the user can be further alerted to the dust removal operation.

It is an appearance perspective view of a vacuum cleaner concerning one embodiment of the present invention. It is a top view of the vacuum cleaner main body of the electric vacuum cleaner shown in FIG. It is a side view of the vacuum cleaner main body of the vacuum cleaner shown in FIG. It is a principal part disassembled perspective view of the cleaner body shown in FIG. It is a principal part disassembled perspective view of the cleaner body shown in FIG. It is a principal part disassembled perspective view of the cleaner body shown in FIG. It is a principal part disassembled perspective view of the cleaner body shown in FIG. It is AA arrow sectional drawing of FIG. FIG. 9 is a view corresponding to FIG. 8 illustrating a state where the dust collection unit is removed from the cleaner body. It is a BB arrow sectional view of Drawing 3. It is the perspective view which looked at the dust collection unit in the cleaner body shown in FIG. FIG. 12 is a left sectional view of the dust collection unit shown in FIG. 11. It is explanatory drawing which shows the flow of the airflow in the cleaner body shown in FIG. It is the perspective view which looked at the dust collection unit shown in FIG. 11 from diagonally left rear. FIG. 12 is an exploded view of the dust collection unit shown in FIG. 11. It is the exploded view seen from the diagonally left front of the dust collection unit shown in FIG. It is a perspective view of the filter unit in the dust collection unit shown in FIG. It is CC sectional view taken on the line of FIG. It is a top view of the filter part in a filter unit. It is a front view of a filter part. It is a top view which shows the state which removed some components of the cup cover unit in the dust collection unit shown in FIG. It is an exploded view of the cup cover unit in the dust collection unit shown in FIG. It is explanatory drawing which shows the state which operated the dust removal handle of the cup cover unit in the dust collection unit shown in FIG. It is explanatory drawing which shows the dust removal state of the filter main body in the dust collection unit shown in FIG. It is explanatory drawing which shows another dust removal state of the filter main body in the dust collection unit shown in FIG. It is explanatory drawing which shows the state which the cup cover handle in the dust collection unit shown in FIG. 11 closed. It is explanatory drawing which shows the state which the cup cover handle opened. It is a cross-sectional perspective view explaining the state in which the cup cover handle in the dust collection unit shown in FIG. 11 was opened. It is a perspective view which shows other embodiment of a filter unit. It is the perspective view which looked at the filter unit of Drawing 26 from the lower part.

Dust collection unit of the present invention has an opening for discharging the inlet and the airflow introducing the air flow containing dust, and the dust cup dust collecting the separated dust by swirling airflow, the opening of the dust cup A filter part covering the part, a dust removing mechanism part attached to the filter part,
A cup cover unit that covers the dust removing mechanism part and the filter part and has an airflow outlet,
The dust removal mechanism has a sliding part that can slide relative to the filter part,
The cup cover unit has a portion exposed to the outside, and includes a dust removal operation unit configured to transmit a force in a reciprocating direction manually by the sliding unit,
The dust removal operation unit has a cup cover shaft that is rotatably provided on the cup cover unit.
The dust removing mechanism part further has a dust removing shaft that penetrates the filter part in a vertical direction,
The cup cover shaft has a first interlocking gear at an end facing the dust removal shaft;
Have a second interlocking gear the dust shaft is the first interlocking gear meshing on the end facing the cup cover shaft,
The cup cover unit further includes a cup cover body and a cup cover handle,
The dust removal operation section includes the cup cover shaft that is rotatably provided on the cup cover body, and a dust removal lever that is fixed to the cup cover shaft in a direction perpendicular to the axis of the cup cover shaft. And
The cup cover handle is provided on the cup cover main body so as to cover a base end side of the dust removing lever fixed to the cup cover shaft.
The tip of the dust removal lever is exposed to the outside,
The tip of the dust removing lever is disposed in the vicinity of the tip of the cup cover handle.

Before Kijochiri lever, the range of the central angle 80 ° to 100 ° may be rotatable relative to the cup cover shaft.
By restricting the rotation of the dust removal lever within this range, it is possible to realize a dust removal operation in which the movement of the user's hand is kept small. As a result, the troublesomeness for the user's dust removal operation can be reduced. In addition, it is advantageous that a space for mounting other parts such as a cup cover handle can be secured in the cup cover body.

  Hereinafter, embodiments of a dust collection unit and a vacuum cleaner including the dust collection unit of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited thereby.

[Description of 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 top view and a side view of a main 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 connected to the suction hose 301, a suction part 303 connected to the tip of the extension pipe 302, a hand handle 304, and an operation attached to the hand handle 304. Part 305 and hose connection part 306.

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

  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 surface together with air from the suction portion 303 to the dust collection 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 140 and appropriately pulls out the dust collection unit 500 from the upper part of the vacuum cleaner main body 100 and collects it. Dust collected in the dust 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. .

Moreover, since the cleaner main body 100 is provided with the hand handle 115, the operator can hold the hand handle 115 and lift the cleaner main body 100 as necessary.
Further, as shown in the side view of FIG. 3, the dust collection state of the dust collection unit 500 can be visually confirmed through the central opening of the ring-shaped wheel 140.

  4 to 7 are exploded perspective views of the cleaner body 100, FIG. 8 is a cross-sectional view taken along the line AA in FIG. 2, and FIG. 9 is a view corresponding to FIG. 8 with the dust collection unit 500 removed from the cleaner body 100. 10 is a cross-sectional view taken along the 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 housing 102 (see FIG. 5) for housing an electric blower 106 (see FIG. 5) installed in the front portion of the cart 101. 5), a second housing 103 (see FIG. 4) installed in the center of the carriage 101 for accommodating the dust collecting unit 500, and a cord reel 108 (see FIG. 7) installed in the rear of the carriage 101. A third housing 107 (see FIG. 7) is provided.

  The electric blower 106 (see FIGS. 5 and 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 faces the direction of gravity. . The first housing cover 104 and the duct 105 shown in FIG. 6 are mounted on the lower first housing 102 (see FIG. 5).

  The 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 for airtightly connecting 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 lateral relay duct 104a is provided to connect the connecting portion 306 (see FIGS. 3 and 8) 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. Yes.

  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.

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

  The lower first housing 102 configured as described above is fixed to the front portion of the carriage 101, and an 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 (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 a third housing 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, ring-shaped wheels 140 are attached from both sides of the semicircular arc-shaped reinforcing beam 109 and the carriage 101. The ring-shaped wheel 140 includes a ring-shaped wheel guide 111, a ring-shaped wheel main body 110, a ring-shaped wheel cover 112, and an arcuate decorative cover 113.

  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 electric vacuum cleaner body 100 is prevented from floating when cleaning. The movement of the electric vacuum cleaner main body 100 due to the pulling of the 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 a perspective view of the dust collection unit in the cleaner body shown in FIG. 2 as viewed from the diagonally left front, and FIG. 12 is a left sectional view of the dust collection unit shown in FIG. The dust collection unit 500 includes a cup cover unit 570, a cup cover handle 591, a filter unit 550, an inner cylinder unit 530, a dust partition 535, and a bottomed cylindrical dust cup 501.

  The dust cup 501 is formed of a transparent 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. The dust collection unit 500 will be described later in detail.

  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.

  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 dust partition 535 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 mesh filter (not shown) is provided on the surface of the inner cylinder unit, and a lighter one rises through the slit of the inner cylinder unit 530 together with the air flow, but large dust is filtered by this mesh filter. Fine dust that has passed through the mesh filter is filtered by the filter unit 550. The filter unit 550 includes a pleated filter in which a peak and a valley 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, passes through the filter unit 550, passes through the electric blower 106, and is formed in the lower flow formed in the vertical direction of the carriage 101 below the dust collection unit 500. Enter road 138.

  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 is then 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.

[Description of dust collection unit]
12 is a left side sectional view of the dust collection unit shown in FIG. 11, FIG. 13 is an explanatory view showing the flow of air flow in the cleaner body shown in FIG. 8, and FIG. 14 shows the dust collection unit shown in FIG. It is the perspective view seen from the left diagonal back. 15 is an exploded view of the dust collection unit shown in FIG. 11, and FIG. 16 is an exploded view of the dust collection unit shown in FIG.

As shown in FIGS. 12 to 16, the dust collection unit 500 is roughly divided into a cylindrical dust cup 501 in which a dust inflow port 503 is formed and an inner portion that closes an opening 505 above the dust cup 501. The cylinder unit 530 includes a filter unit 550 accommodated in an upper portion of the inner cylinder unit 530, and a cup cover unit 570 that closes the filter unit 550 so as to be openable and closable.
Hereinafter, the dust cup 501, the inner cylinder unit 530, the filter unit 550, and the cup cover unit 570 will be individually described.

<Dust cup>
As shown in FIGS. 12 to 16, the dust cup 501 is formed in a cylindrical shape having a bottom, and the upper opening 505 facing the bottom and the air flow containing dust on the cylindrical peripheral surface are formed. And an inflow port 503.
More specifically, the dust cup 501 includes a cylindrical member 502 and a bottom member 511 that closes the lower opening of the cylindrical member 502, and extends from the peripheral side surface of the cylindrical member 502 along the tangential direction of the peripheral side surface. An inflow port 503 is formed to extend.
In addition, a flange 503a is formed at the tip of the inlet 503 to ensure the connection with the duct 105 on the cleaner body side, and the hook lever 507 is attached to the outer peripheral surface of the cylindrical member 502 in the vicinity of the inlet 503. A portion 504 is provided.

<Inner cylinder unit>
As shown in FIGS. 12 to 16, the inner cylinder unit 530 includes an inner cylinder 533 in which an outlet 533 b composed of a plurality of vertically long slits is formed on a cylindrical wall, and a flange shape provided at the lower end of the inner cylinder 533. And a funnel-shaped cup cover 537 that is provided at the upper end 533a of the inner cylinder 533 and expands the upper opening of the inner cylinder 533.
The dust partition 535 includes a disk-shaped flange portion 535a having a center hole, a large-diameter cylindrical portion 535b protruding in the vertical direction from the outer peripheral end of the flange portion 535a, and a small-diameter cylinder hanging from the inner peripheral portion of the flange portion 535a. Part 535c.

  The cup cover 537 includes a frame-shaped enlarged portion 537a into which the filter unit 550 is fitted, an inclined surface portion 537b that connects the enlarged portion 537a and the upper end 533a of the inner cylinder 533, an inclined surface portion 537b, and an upper end 533a of the inner cylinder 533. And a circular fitting portion 537c that is provided in between and fitted into the opening edge of the dust cup 501 via a seal member. Note that the enlarged portion 537a is formed in a rectangular shape that is close to a square when seen in a plan view, with the short sides arranged on the front and rear sides and the long sides arranged on the left and right sides.

  Further, on the outer peripheral portion of the cup cover 537, an engagement portion 538a that is detachably engaged with the hook lever 507 of the dust cup 501 is provided on the front side, and a pair of hinge portions of a cup cover unit 570 described later is provided on the left side. A pair of shaft support portions 538b that support the shaft of 573a are provided, and a release lever 538c that is detachably engaged with an engagement portion 573r of the cup cover unit 570 is provided on the right side.

<Filter unit>
FIG. 17 is a perspective view of the filter unit in the dust collection unit shown in FIG. 18A is a cross-sectional view taken along the line CC of FIG. 18B, FIG. 18B is a plan view of the filter portion in the filter unit, and FIG. 18C is a view of the filter portion. It is a front view.
The filter unit 550 includes a filter unit 551 and a dust removal mechanism unit 557.
The filter part 551 has a filter main body 551a having a triangular waveform in cross section having peaks and valleys alternately repeated in the left-right direction, and a filter frame 551b integrated with the filter main body 551a.

The filter body 551a, used HEPA filter (High Efficiency Particulate Air Filter) is, together with its upper rib 551a ₁ by the resin in the top portions of the mountain-shaped portions are formed, the side end portion of a resin on both sides before and after each peak portion 551a ₂ is formed. Further, the left and right side surfaces of the crests at the left and right ends of the filter body 551a are coated with resin. Then, the side end portion 551a ₂ of the front and rear of each crest, left and right side surfaces of the crests of the left and right ends are integrated without a gap and the inner peripheral surface of the resin filter frame 551b below.

The filter frame 551b has a pair of front and rear short sides and a pair of left and right long sides, and is formed in a shape and size that can be fitted into the enlarged portion 537a of the cup cover 537 via a seal member. Further, the filter frame 551b includes a cylindrical portion 551b ₁ that penetrates the center of the filter main body 551a, and a connecting plate portion 551b ₂ that connects the middle portion of the pair of front and rear short sides and the cylindrical portion 551b ₁ . And filter body 551a is divided into two parts on the left and right by the connecting plate portion 551b _2.

The dust removal mechanism portion 557 is provided on the dust removal frame 553 so as to be slidable on the dust removal shaft 554 inserted into the tube portion 551b ₁ of the filter portion 551, the dust removal frame 553 connected to the dust removal shaft 554, and the filter body 551a. And a second interlocking gear 554a attached to the upper end of the dust removal shaft 554, and a dust removal wiper 555 provided at the lower end of the dust removal shaft 554.

  The dust removing shaft 554 is a cylindrical shaft body, and at least one flat surface portion is formed on the outer peripheral surface of the upper end thereof. In the case of this embodiment, a pair of plane parts parallel to the outer peripheral surface of the upper end of the dust removing shaft 554 are formed. Note that the shape of the dust removal shaft 554 viewed from the axial direction of the outer peripheral surface at the upper end may be, for example, a polygon such as a triangle, a quadrangle, or a pentagon.

  The dust removal wiper 555 includes a plurality of attachment blades 555a integrally formed with the dust removal shaft 554, and elastic blades 555b (for example, rubber blades) attached to the attachment blades 555a. The plurality of attachment blades 555a extend radially from the lower end of the dust removal shaft 554 at equal intervals in the circumferential direction, and attachment grooves are formed along the lower end edges of the attachment blades 555a. The upper end edge of the elastic blade 555b is fitted and fixed in the mounting groove. In the case of the present embodiment, three attachment blades 555a are provided at a central angle of 120 °.

The second interlocking gear 554a includes a gear portion 554a ₁ and a cylindrical portion 554a ₂ provided on the inner peripheral surface side of the gear portion 554a ₁ and integrated. The cylindrical portion 554a ₂ has an inner flange portion at the lower end, and the center hole of the inner flange portion is formed in a shape in which the upper end of the dust removing shaft 554 is fitted without a gap. Then, the second interlocking gear 554a and the dust removing shaft 554 are connected by screwing a self-tapping screw into the upper end of the dust removing shaft 554 fitted in the central hole of the inner flange portion via a washer.

Dust frame 553 includes a plurality of arm portions 553b extending radially at equal intervals from the lower end of the gear portion 554a ₁ in the circumferential direction, and a circular ring portion 553c connecting the distal end of each arm portion 553b. Further, the predetermined arm portion 553b together with the double ring-shaped mounting ring 553b ₁ for mounting a plurality of sliding portions 553a are provided, knob one arm portion 553b having no mounting ring 553b ₁ 553b ₂ is provided. The mounting ring portion 553b ₁ includes an outer large ring 553b ₁₁ and an inner small ring 553b ₁₂ connected to a part of the large ring 553b _11. The small ring 553b ₁₂ projects upward from the outer ring 553b _11. ing. An inner collar is provided at the lower end of the small ring 553b ₁₂ (not shown).

In the present embodiment, dividing the second interlocking gear 554a dust frame 553 (the arm portions 553b, each mounting ring 553b _1, knob 553b ₂ and the circular ring portion 553c) and a part which is integrally molded with resin, Six arm portions 553b are provided radially at a central angle of 60 ° from the lower end of the gear portion 554a ₁ , and the attachment ring portion is provided between the tips of the three arm portions 553b that are not adjacent to each other and the circular ring portion 553c. 553b ₁ is provided.

Sliding portion 553a includes a cap member 553a ₁ which is mounted so as to close the small ring 553b ₁₂ of mounting ring 553b _1, a compression spring 553a ₂ provided in the cap member 553a in _1, the compression spring 553a ₂ lower And a bullet-shaped slidable contact member 553a ₃ that is attached to and urged downward (see FIG. 22). The lower end of the compression spring 553a ₂ is inserted through the small ring 553b ₁₂ , and the upper end is caught by the inner flange of the small ring 553b ₁₂ and is prevented from coming off. Further, the sliding contact member 553a ₃ has a protruding portion that is press-fitted into the hole at the lower end of the small ring 553b _{12 at} the upper end.

According to the filter unit configured as described above, when the second interlocking gear 554a rotates in one direction or the reciprocating direction, the dust removal frame 553, the dust removal shaft 554, and the dust removal wiper 555 rotate integrally. As the dust removal frame 553 rotates, the sliding contact member 553a ₃ of each sliding portion 553a gets over while sliding on each upper rib 551a ₁ of the filter body 551a.

<Cup cover unit>
19 is a plan view showing a state in which a part of the cup cover unit in the dust collection unit shown in FIG. 11 is removed, and FIG. 20 is an exploded view of the cup cover unit in the dust collection unit shown in FIG. 21 is explanatory drawing which shows the state which operated the dust removal handle of the cup cover unit in the dust collection unit shown in FIG. 22 is an explanatory view showing the dust removal state of the filter body in the dust collection unit shown in FIG. 11, and FIG. 23 is an explanatory view showing another dust removal state of the filter body in the dust collection unit shown in FIG. FIG. 24A is an explanatory view showing a state where the cup cover handle in the dust collecting unit shown in FIG. 11 is closed, and FIG. 24B is an explanatory view showing a state where the cup cover handle is opened. 25 is a cross-sectional perspective view illustrating a state in which the cup cover handle in the dust collection unit shown in FIG. 11 is opened. 24A and 24B show a state where the cup cover unit 570 is viewed from the rear.

  12 to 25, the cup cover unit 570 includes a cup cover main body 573, a cup cover handle 591 that is curved in a substantially spherical shape (convex curved surface) on the upper side of the cup cover main body 573, and a U-shaped cup. A cover cover 597, a dust removal operation unit 585 for transmitting a manual reciprocating force to the sliding unit 553a, and a bullet mechanism unit 577 for bullet-biasing the cup cover handle 591 downward are provided. .

  The cup cover main body 573 includes an upper wall 574a and a peripheral wall 574b that cover the upper and surroundings of the filter unit 550 when the inner cylinder unit 530 is attached to the dust cup 501 and the filter unit 550 is attached to the inner cylinder unit 530. Have. In the peripheral wall 574b, the pair of hinge portions 573a are provided on the right side surface, the engaging portion 573r is provided on the left side surface, and a discharge duct 571 having a discharge port is provided on the front surface.

  The upper wall 574a of the cup cover body 573 is formed with a substantially fan-shaped upper surface recess 573x to which the dust removal lever 579 of the dust removal operation portion 585 is attached at the rear position, and for pivotally mounting the dust removal lever 579 so as to be swingable. A mounting hole 573b is formed at a substantially central position. The upper wall 574a is provided with a pair of pivot shafts 573c for pivotally mounting the cup cover handle 591 so as to be swingable in the vertical direction, and the second interlocking lever 577a of the impact mechanism 577a. A pair of front and rear support walls 573d are provided that are slidable in the left-right direction while restricting the upward movement of.

The dust removal operation unit 585 includes the dust removal lever 579, a knob-shaped dust removal handle 583, and a first interlocking gear 575.
In dust operation unit 585, the lower surface of the proximal end of the dust removing lever 579, together with the shaft portion 579a is provided to be fitted into the fitting hole 575a ₁ which will be described later, of the first interlocking gear 575, the tip of the dust removal lever 579 is elongated hole 579b is formed. A cylindrical portion 583a of a dust removal handle 583 is inserted into the elongated hole 579b via a cover member 581 described later, and a retaining member 584 is fitted into the cylindrical portion 583a.

The first interlocking gear 575 is integrated with a cylindrical cup cover shaft 575a having the fitting hole 575a ₁ on the upper surface thereof. Then, the cup cover shaft 575a is inserted into the mounting hole 573b of the cup cover body 573 via a seal ring 576, the shaft portion 579a of the dust removing lever 579 is fitted into the fitting hole 575a _1. Since the shaft portion 579a is a quadrangular shaft and the fitting hole 575a is a square hole, the first gear 575 is rotated by rotating the dust removal lever 579. Note that the shaft portion 579a and the fitting hole 575a ₁ may have a matching shape having at least one plane when viewed from the axial direction.

  In the present embodiment, the upper surface recess 573x of the cup cover main body 573 has a substantially fan shape that expands at an angle of about 90 ° in plan view, and the left and right side surfaces of the dust removal lever 579 are in contact with the left and right inner surfaces of the upper surface recess 573x. By contacting, the reciprocating movement (swing) of the dust removing lever 579 in the left-right direction is restricted. The cover member 581 fitted into the upper surface recess 573x is formed in a substantially fan shape that covers the tip end side of the dust removal lever 579, and has a gentle arc-shaped slit 581a through which the cylindrical portion 583a of the dust removal handle 583 is inserted. doing.

The cup cover handle 591 is substantially rectangular in a plan view, and a pair of shaft support portions 591a for supporting the pair of pivot shafts 573c is provided in front of the lower surface thereof, and the elastic mechanism is provided at the center of the lower surface. A first interlocking lever 593 of the part 577 is provided, and a collision part 595 is provided behind the lower surface.
The collision part 595 is made of a part different from the cup cover handle 591 and is formed to protrude downward from the lower surface of the cup cover handle 591 so that it can collide with the base end of the dust removal lever 579. In the case of this embodiment, the collision part 595 is formed in a duster shape, and the upper end thereof is fixed to the lower surface of the cup cover handle 591.

  The bullet mechanism 577 includes a first linkage lever 593 fixed to the lower surface of the cup cover handle 591, a second linkage lever 577 a slidably provided on the cup cover body 573, and a compression spring 577 b as a bullet member. And.

The second working lever 577a includes a wall portion 577a ₁ before and after a bottom wall portion 577a _2, left and right wall portions 577a _3, 577a _4, and a sliding rod portion 577a ₅ for connecting the right upper end of the front and rear wall portions 577a ₁ Have. Further, in the bottom wall portion 577a ₂ , a rectangular insertion hole 577a ₆ through which the stopper wall 573y protruding from the upper surface of the cup cover body 573 is inserted on the right wall portion 577a ₄ side between the left and right wall portions 577a ₃ and 577a _4. Is formed. Compression spring 577b is provided with a wall portion 577a ₁ before and after, a left wall 577a _3, is disposed in the accommodating space surrounded by the stopper wall 573Y, protrusion inserted protruding from the left wall 577a ₃ at its left end Has been.

First interlocking lever 593 has an inclined surface 593a that contacts the sliding Sebbo portion 577a ₅ of the second working lever 577a in a state fixed through a mounting member 594 on the lower surface of the cup cover handle 591. The inclined surface 593a is a surface inclined upward from right to left.

  In the cup cover unit 570 configured as described above, the upper surface of the cup cover unit 570 is a continuous convex curved surface including the upper surface of the cup cover handle 591. A concave portion is formed in the dust removal handle placement portion of the cup cover unit 570 so that the upper end of the knob-shaped dust removal handle 583 does not protrude upward from the continuous curved surface. A gap S into which the user's fingertip F can be inserted is formed between the tip 591a of the cup cover handle 591 and the cup cover cover 597. The user can remove dust adhering to the filter body 551a by operating the dust handle 583 disposed in the gap S and exposed to the outside as described below.

<Dust removal from the filter body>
As shown in FIGS. 14, 17, and 19 to 22, when dust is removed from the lower surface of the filter main body 551 a, the user holds the dust removal handle 583 of the dust removal operation unit 585 in the cup cover unit 570 with a finger. Pick it up and down and move it back and forth. At this time, since the tip of the dust removal lever 579 has a long hole 579b into which the cylinder portion 583a of the dust removal handle 583 is inserted, the cylinder portion 583a can move on the straight line Ls. Therefore, the user can linearly move the dust removal handle 583 left and right. Of course, the dust removal handle 583 can be reciprocated in a gentle arc along the slit 581a of the cover member 581.
By moving the dust removal handle 583 back and forth to the left and right, the dust removal lever 579 rotates (swings) in the left and right directions around the shaft portion 579a, whereby the first interlocking gear 575 connected to the dust removal lever 579 is moved to the cup cover shaft. It rotates about 575a.

As the dust removal operation unit 585 operates in this manner, the second interlocking gear 554a meshed with the first interlocking gear 575 of the dust removal mechanism 557 in the filter unit 550 interlocks (rotates) with the first interlocking gear 575, Accordingly, the dust removal shaft 554 connected to the second interlocking gear 554a and the dust removal frame 553 having the plurality of sliding portions 553a are interlocked (rotated).
When the dust removal frame 553 rotates, the sliding spring 553a ₂ contracts or bends so that the sliding contact member 553a ₃ rides on the upper rib 551a ₁ .

Then, when the sliding contact member 553a ₃ falls between the upper ribs 551a ₁ , the sliding contact member 553a ₃ collides with the upper rib 551a ₁ that is about to ride on. Since this collision occurs continuously, and the filter body 551a vibrates, the dust D (see FIG. 22) adhering to the surface of the filter body 551a on the cup cover 537 side shakes on the inclined surface portion 537b of the cup cover 537. Be dropped. Thereby, the filter main body 551a is dedusted.

  On the other hand, when the dust removing shaft 554 is rotated, the dust removing wiper 555 is interlocked (rotated). Accordingly, the elastic blade 555b slides on the inclined surface portion 537b and collects dust on the inclined surface portion 537b to the upper opening side of the inner cylinder 533. Then, the dust is dropped into the inner cylinder 533 and stored in a space formed by the small diameter cylinder portion 535c of the dust partition 535 and the bottom member 511 of the dust cup 501.

  The dust removal of the filter main body 551a can be performed by operating the dust removal operation unit 585 as described above, but can also be performed by operating the cup cover handle 591. In this case, as shown in FIGS. 23 to 25, the user's finger F is inserted into the gap S of the cup cover unit 570 to swing the tip 591 a of the cup cover handle 591 upward. As a result, the cup cover handle 591 is subjected to a resilient force drawn downward by the action of a resilient mechanism portion 577 described later.

  Therefore, when the finger F is released from the cup cover handle 591, the collision part 595 on the lower surface side of the cup cover handle 591 collides with the base end of the dust removal lever 579. At this time, the elastic force of the elastic mechanism portion 577 generated when the cup cover handle 591 is pulled up is transmitted as an impact force If to the filter portion 551 via the dust removing mechanism portion 557 by releasing the cup cover handle 591. The

In other words, the impact force If is transmitted to the dust removing frame 553 via the second interlocking gear 554a, whereby each sliding portion 553a contacting the upper rib 551a1 of the filter main body 551a vibrates, and thereby the filter main body 551a vibrates. To do. In addition, the impact force If is transmitted to the tube portion 551b ₁ of the filter portion 551 via the second interlocking gear 554a, and thereby the filter body 551a vibrates. As a result, the dust D (see FIG. 23) attached to the filter main body 551a is shaken off. Note that the filter main body 551a can be dusted more cleanly by repeating the operation of releasing the raised cup cover handle 591 a plurality of times.

The cup cover handle 591 swings around the pivot shaft 573c together with the first interlocking lever 593. When the cup cover handle 591 is closed to the state shown in FIG. 24B and FIG. 25 in which the tip 591a of the cup cover handle 591 is lifted upward, the second ascending direction of the arrow A is reached. The sliding contact bar portion 577a ₄ of the second interlocking lever 577a is in sliding contact with the inclined surface 593a of the first interlocking lever 593. As a result, the second interlocking lever 577a whose upward movement is restricted moves toward the first interlocking lever 593 (in the direction of arrow B).

At this time, since the left wall portion 557a ₃ of the second interlocking lever 577a approaches the stopper wall 573y of the cup cover body 573, the compression spring 577b is compressed, whereby the second interlocking lever 577a is moved in the direction of the arrow B. The resilience in the opposite direction is activated. This elastic force is converted into a force that urges the cup cover handle 591 downward (in the direction opposite to the direction of arrow A) via the sliding contact rod portion 577a ₄ and the first interlocking lever 593. By releasing the handle 591, the collision portion 595 vigorously collides with the base end of the dust removal lever 579 (see FIG. 23).

Although not shown, the filter main body 551a can be dust-removed as follows. In this case, first, the release lever 538c of the inner cylinder unit 530 is operated to open the cup cover unit 570 to expose the filter unit 550 to the outside. At this time, the first interlocking gear 575 is detached from the second interlocking gear 554a. Then, by rotating the knob 553b ₂ of the dust removing mechanism portion 557 in one direction or reciprocating with the cup cover unit 570 opened, the filter main body 551a can be vibrated to remove dust as described above. . In this case, since the dust removal wiper 555 also rotates, the dust in the cup cover 537 is dropped and collected in the dust cup 501.

When the dust in the dust cup 501 is thrown away, the hook lever 507 of the dust cup 501 is operated to remove the upper part from the inner cylinder unit 530 from the dust cup 501.
Although not disclosed, a dust cup is provided with a bottom lid, and an opening / closing mechanism for opening and closing the bottom lid is provided. When the dust in the dust cup is thrown away, the bottom lid is opened by the opening / closing mechanism and the dust is thrown away. May be.

(Other embodiments)
FIG. 26 is a perspective view showing another embodiment of the filter unit, and FIG. 27 is a perspective view of the filter unit of FIG. 26 viewed from below. 26 and 27, the same reference numerals are given to the same elements as those in FIG.
In the dust collecting unit of the present invention, the number of sliding portions and the number of dust removing wipers of the dust removing mechanism portion are not particularly limited. For example, as shown in FIGS. 26 and 27, the dust removing mechanism 1557 in the filter unit 1550 may include six sliding portions 553a and six dust removing wipers 555. Thereby, even if the movement range of the dust removal handle 583 (see FIG. 21) is limited, dust can be efficiently removed within the movement range.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

1: Electric vacuum cleaner 100: Vacuum cleaner main body 500: Dust collection unit 501: Dust cup 503: Inlet 503a: Flange 505: Opening 530: Inner cylinder unit 533: Inner cylinder 533a: Upper end 533b: Outlet 537: Cup cover 537a: Enlarged portion 537b: Inclined surface portion 537c: Circular fitting portion 550: Filter unit 551: Filter portion 551a: Filter body 551b: Filter frame 551a ₁ : Upper rib 553: Dust removal frame 553a: Slide portion 553b: Arm portion 554: Dust removal shaft 554a: second interlocking gear 555: dust removal wiper 570: cup cover unit 571: discharge duct 573: cup cover body 573a: hinge portion 575: first interlocking gear 579: dust removal lever 581: cover member 581a: slit 583: dust removal Han Dollar 591: Cup cover handle 597: Cover for cup cover

Claims (2)

Has an opening for discharging the inlet and the airflow introducing the air flow containing dust, and the dust cup dust collecting the separated dust by the whirling air current,
A filter portion covering the opening of the dust cup;
A dust removing mechanism attached to the filter part;
A cup cover unit that covers the dust removing mechanism part and the filter part and has an airflow outlet,
The dust removal mechanism has a sliding part that can slide relative to the filter part,
The cup cover unit has a portion exposed to the outside, and includes a dust removal operation unit configured to transmit a force in a reciprocating direction manually by the sliding unit,
The dust removal operation unit has a cup cover shaft that is rotatably provided on the cup cover unit.
The dust removing mechanism part further has a dust removing shaft that penetrates the filter part in a vertical direction,
The cup cover shaft has a first interlocking gear at an end facing the dust removal shaft;
Have a second interlocking gear the dust shaft is the first interlocking gear meshing on the end facing the cup cover shaft,
The cup cover unit further includes a cup cover body and a cup cover handle,
The dust removal operation section includes the cup cover shaft that is rotatably provided on the cup cover body, and a dust removal lever that is fixed to the cup cover shaft in a direction perpendicular to the axis of the cup cover shaft. And
The cup cover handle is provided on the cup cover main body so as to cover a base end side of the dust removing lever fixed to the cup cover shaft.
The tip of the dust removal lever is exposed to the outside,
The dust collecting unit , wherein a tip of the dust removing lever is disposed at a position near a tip of the cup cover handle . The vacuum cleaner provided with the vacuum cleaner main body which incorporates the dust collection unit and electric blower of Claim 1, and the suction inlet connected with this vacuum cleaner main body.