JP2003265377A - Dust collector and vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner equipped with a dust cup in which clogging can be more prevented. <P>SOLUTION: A net filter 42 is inserted through a communication opening 38 and protruded into a cup portion 33. Since the area of the net filter 42 is enlarged, suction air is passed while being dispersed over the entire portion of the net filter 42 protruded into the cup portion 33. Since the dust of the suction air is stuck while being dispersed over the entire net filter 42 protruded into the cup portion 33, clogging of the net filter 42 can be more prevented. Since a gap easy to stagnate dust is not formed near the net filter 42, clogging of the net filter 42 can be more prevented. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collector for separating dust from suction air and an electric vacuum cleaner equipped with the dust collector.

[0002]

2. Description of the Related Art Conventionally, as a dust collecting apparatus for this type of electric vacuum cleaner, for example, a structure shown in FIG. 4 has been known.

The dust collecting cup 1 as the dust collecting device shown in FIG. 4 is used for a so-called cyclone type electric vacuum cleaner in which the sucked air is swirled to collect the dust by centrifugal separation. A cup portion 3 having a substantially bottomed cylindrical shape is provided as a dust collecting portion having an opening 2 opened. This cup part 3
Separates dust from the suctioned air sucked into the inside of the cup portion 3 and collects the separated dust.

Further, a cyclone portion 4 as a dust separating portion is detachably attached to the opening portion 2 of the cup portion 3 to close the opening portion 2. The cyclone unit 4 is provided with an intake port 4a. The cyclone unit 4 swirls the intake air sucked from the intake port 4a into the inside of the cup unit 3 and is sucked together with the intake air. The dust is centrifuged in the cup portion 3.

Further, a swirling air outlet (not shown) for guiding the swirling wind swirled by the cyclone unit 4 into the inside of the cup unit 3 is opened in the cyclone unit 4, and below the cyclone unit 4. A communication port 5 for opening the suctioned air sucked into the cup portion 3 to the cyclone portion 4 is opened on the side. A dust collecting filter 6 as a capturing means is attached to the communication port 5, and the dust collected in the cup portion 3 can be discharged from the cup portion 3 by the dust collecting filter 6. To be prevented.

Above the dust collecting filter 6 in the cyclone unit 4, the suction air sucked into the dust collecting cup 1 is exhausted to the suction side of an electric blower (not shown) through the cup unit 3 and the cyclone unit 4. The exhaust port 7 for opening is opened. A cylindrical filter 8 having a substantially bottomed cylindrical shape is attached to the exhaust port 7 as a capturing means. The cylindrical filter 8 is located above the dust collecting filter 6 and is spaced apart from the dust collecting filter 6, and the cylindrical filter 8 is disposed in the cyclone unit 4.
A swirling wind is easily generated along the outer circumference of the. Also,
The cylindrical filter 8 is a fine filter which is not captured by the dust collecting filter 6 when the exhaust air exhausted from the cup portion 3 to the cyclone portion 4 through the dust collecting filter 6 passes through the exhaust port 7. Capture dust.

[0007]

However, in the above dust collecting cup 1, since the dust collecting filter 6 is attached to the communication port 5, the area of the dust collecting filter 6 becomes relatively small, and the dust collecting filter 6 becomes smaller. 6 is easily clogged.

On the other hand, the cylindrical filter 8 includes the cyclone unit 4
By becoming the center of the swirling wind generated at, the swirling wind becomes relatively weak between the lower end of the cylindrical filter 8 and the dust collecting filter 6. The distance between the lower end of the cylindrical filter 8 and the dust collecting filter 6 is relatively small. Therefore, dust easily collects between the dust collecting filter 6 and the cylindrical filter 8.

As a result, the dust collecting filter 6 and the cylindrical filter 8 are apt to be clogged.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a dust collector that can further prevent clogging and an electric vacuum cleaner equipped with the dust collector.

[0011]

SUMMARY OF THE INVENTION A dust collecting apparatus of the present invention is a dust separating section for centrifugally separating dust from an intake air sucked from an intake port, and a dust collecting section for collecting the dust separated by the dust separating section. Part, a communication port through which suction air exhausted from this dust collection part to the exhaust port of the dust separation part passes, and through this communication port it projects to the dust collection part, and from this dust collection part through the communication port. And a trapping unit for trapping dust from the suction wind passing through the suction wind. Then, the catching means can be made large by projecting the catching means to the dust collecting portion through the communication port, and since a gap or the like where dust is likely to collect is not formed in the vicinity of the catching means, the catching means is clogged. More prevented.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A first vacuum cleaner according to the present invention will be described below.
An embodiment will be described with reference to FIGS. 1 to 3.

In FIGS. 1 to 3, reference numeral 11 denotes a cleaner body, and this cleaner body 11 is a so-called cyclone system in which dust is separated by gravity and can run on the floor.
Further, the cleaner body 11 includes a hollow case body 12 and a lid body that rotatably connects a rear portion to an upper front side of the case body 12 and rotatably covers an upper front portion of the case body 12 by opening and closing.
It has a main body case 14 provided with 13. Further, inside the case body 12, as shown in FIG. 1, an electric blower 15 which is an electric section as a driving means is accommodated, that is, mounted. Further, a main body exhaust port 16 communicating with the exhaust side of the electric blower 15 is opened toward the front of the case body 12 in a substantially central region in the front-rear direction of the case body 12.

On the front side of the case body 12, there is provided a bottomed cylindrical cup holding portion 18 having a swivel wheel 17 rotatably and rotatably attached to the bottom thereof. The upper side of the cup holder 18 is covered with the lid 13. Further, a pair of traveling wheels 19 which are rotatable along the front side and the rear side of the main body case 14 in the traveling direction are attached to both sides of the case body 12, respectively.

Further, on the front side of the lid body 13, there is provided a main body suction port 21 which is open toward the front. A base end of a flexible hose body 22 is communicated with the main body suction port 21 and is detachably connected thereto. At the tip of this hose body 22, a hand-operated operating portion 23 as an operating means bent in a substantially V shape.
Is provided. The electric blower 15 is provided at a portion of the hand operation portion 23 facing the base end side of the bent portion.
A plurality of setting buttons 24 for setting the operation modes such as are separated from each other and arranged in a line. Further, a floor brush 26 as a suction port body, which is a nozzle body, is detachably connected to the distal end side of the hand operation part 23 of the hose body 22 via an extension pipe 25 as an expandable / contractible connection pipe. .

Further, a cord port (not shown) is opened in the rear of the case body 12, and a cord (not shown) for supplying the power source for driving the electric blower 15 from the outside can be pulled out to this cord port. Have been derived to. Further, a plug portion (not shown) that is detachably inserted into an outlet portion (not shown) provided on a wall surface or the like is provided at the tip of the cord.

On the other hand, on the suction side of the electric blower 15 which is between the cup holding portion 18 of the case body 12 of the main body case 14 and the lid body 13, the dust sucked together with the suction wind by the electric blower 15 is swirled inside. A dust cup 31 is detachably attached as a dust collecting device for dropping the dust by centrifugal separation due to its own weight to collect the dust.

As shown in FIGS. 1 and 3, the dust cup 31 takes in the suction air sucked by the electric blower 15, collects the dust sucked together with the suction air, and at one end thereof. A cup part 33 as a bottomed cylindrical dust collecting part having an opening 32 formed at a certain upper end is provided. In the opening 32 of the cup portion 33, when the dust cup 31 is attached between the case body 12 and the lid body 13, an intake air that communicates with the base end side of the main body suction port 21 of the lid body 13 in an airtight manner. A substantially cylindrical cyclone unit 35, which is a wind direction control unit as a dust separating unit having a port 34, is attached. The lower end of the cyclone portion 35 is located between the cup portion 33 and the cyclone portion 35, and a partition wall 36 for partitioning the cup portion 33 and the cyclone portion 35 is formed.

Further, on the outer peripheral portion of the cyclone portion 35, there is formed a cyclone constituent portion 37 as a swirling air constituent portion for swirling the intake air sucked from the intake port 34.
This cyclone component 37 has
An unillustrated swirling air outlet for opening the swirling air swirled at to the inside of the cup portion 33 is opened. This swirling air flow outlet is located in the outer region of the cyclone unit 35 and connects the inside of the cup unit 33 and the intake port 34.

Further, at the center of the separation wall 36, the cup portion 33
And the cyclone part 35 are communicated with each other, and the swirl air flowing out from the swirling air flow outlet and flowing into the cup part 33 passes through the communication port.
38 is opened. Further, a seal packing 39 as a sealing means is attached to the opening edge of the communication port 38 along the entire circumference of the opening edge of the communication port 38. The seal packing 39 is formed in an annular shape by a soft member such as rubber. Also, this seal packing
39 is formed so that the thickness dimension gradually decreases from the outer peripheral side toward the inner peripheral side, and projects from the opening peripheral edge of the communication port 38 toward the center of the communication port 38.

An exhaust port is provided above the communication port 38.
41 is opened. Intake air from the cup portion 33 that has passed through the communication port 38 is exhausted from the exhaust port 41. Further, a substantially bottomed cylindrical net filter 42 which is a dust collecting filter as a capturing means is attached to the exhaust port 41. This net filter 42 is provided with a flange portion 42a that projects in the radial direction of the net filter 42 along the entire outer circumference at the upper end of the outer peripheral surface.
By being engaged with the upper side of the exhaust port 41, it is detachably attached from the exhaust port 41.

The net filter 42 projects downward from the cyclone portion 35 to the cup portion 33 to a substantially central region in the height direction of the cup portion 33, and extends from the cup portion 33 through the communication port 38. Fine fine dust is captured from the suction air exhausted to the exhaust port 41. Also, this net filter 42
The diameter is reduced from the upper side to the lower side. Furthermore, the outer side of the lower side of the net filter 42 is formed larger than the inner side of the seal packing 39, and the inner side of the seal packing 39 is inserted from the upper side to the lower side. For this reason, the tip of the inner circumference of the seal packing 39 contacts the outer circumference of the net filter 42 and is pushed downward, and the outer circumference of the net filter 42 and the center of the separation wall 36 are sealed by the seal packing 39. Communication port provided in the section
The gap with 38 is airtightly closed.

Furthermore, at the upper end of the dust cup 31 above the exhaust port 41, the dust floating in the suction air passing through the exhaust port 41, that is, the finer dust that cannot be captured by the net filter 42, is captured. An auxiliary filter 43 as a fine dust capturing means is detachably attached.

The exhaust port 41 of the cyclone component 37
Is an elongated concave communication recess 44 provided on the lower end surface of the lid 13.
Through the vent hole 45 opened to the front side of the case body 12 to be airtightly connected to the suction side of the electric blower 15 in the case body 12. Further, on the outer surface of the cup portion 33 of the dust cup 31, a handle portion 46 as a handle portion having an upper end which is one end continuously provided to the outer peripheral surface of the upper end and a lower end which is the other end is a free end is integrally formed. It is provided.

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

First, as shown in FIG. 2, the lid 13 of the main body case 14 is rotated with respect to the case body 12 to
After opening the 12 cup holders 18,
The bottom portion of the dust cup 31 is fitted in 18.

In this state, as shown in FIG. 3, the lid 13 is rotated to move the communication recess 44 of the lid 13 into the dust cup 31.
Of the dust cup 31 is connected to the ventilation port 45 of the case body 12, and the suction port 34 of the dust cup 31 is communicated with the base end side of the main body suction port 21 of the lid body 13. .

Further, the base end of the hose body 22 is connected to the main body suction port 21 of the case body 12, and the floor brush is attached to the tip end.
The base end of the extension pipe 25, to which 26 is communicatively connected, is communicatively connected to the tip of the hose body 22.

Then, the cord is led out from the rear of the case body 12, and the plug portion of the cord is inserted into an outlet portion provided on a wall surface or the like.

Thereafter, while holding the hand operation part 23 of the hose body 22, a predetermined setting button 24 of the hand operation part 23 is turned on to drive the electric blower 15 in the main body case 14.

Then, air is sucked from the tip of the floor brush 26 together with dust. Then, the dust-containing air becomes suction air, sequentially passes through the inside of each of the extension pipe 25 and the hose body 22 and is sucked into the main body suction port 21 of the lid body 13, and then the suction port 34 of the dust cup 31. Is sucked in.

Further, the suction air sucked into the intake port 34 is sucked from the intake port 34 into the cyclone forming portion 37 of the cyclone unit 35, and rotates in a spiral shape inside the cyclone forming unit 37. After turning into a swirling wind, it passes through the swirling air flow outlet of this cyclone component part 37, and the cup part 33
Is sucked inside.

At this time, the net filter 42 is replaced by the cup portion 33.
By protruding to the substantially central portion of the, the air passage is formed between the outer peripheral surface of the net filter 42 and the inner peripheral surface of the cup portion 33, the suction wind sucked into the cup portion 33 The spiral swirling wind is generated more strongly in the cup portion 33.

Then, due to the swirling of the suction air in the cup portion 33, the dust sucked together with the suction air falls into the cup portion 33 by centrifugal separation due to its own weight, and the dust is collected in the cup portion 33. To be done.

Further, the sucked air swirling in the cup portion 33 passes from the central region of the bottom portion of the cup portion 33 to the net filter 42 inserted into the communication port 38 of the cyclone forming portion 37. At this time, fine dust that could not be separated by centrifugation in the cup portion 33 is captured by the net filter 42, and the dust collected in the cup portion 33 is passed through the communication port 38 to the cup portion 33. Prevents discharge to the outside of 33.

Here, since the net filter 42 is inserted into the communication port 38 and protrudes into the cup portion 33, the area of the net filter 42 is increased and the suction air exhausted from the cup portion 33 is changed to the net filter. Since the particles 42 are dispersed and passed through the entire portion protruding into the cup portion 33, clogging of the net filter 42 due to dust or the like captured by the net filter 42 is further prevented.

Further, the net filter 42 has a cyclone unit 35.
Since it is integrally formed from the to the cup portion 33, since the vicinity of the net filter 42, that is, the vicinity of the communication port 38, or the gap between the cup portion 33 and the cyclone portion 35, etc. where dust is likely to collect is not formed, This clogging of the net filter 42 is further prevented.

After that, the suctioned air passing through the net filter 42 passes through the exhaust port 41 and the auxiliary filter 43 attached to the upper end of the dust cup 31. At this time, finer fine dust that could not be captured by the net filter 42 is captured by the auxiliary filter 43.

The suction air that has passed through the auxiliary filter 43 is connected to the communication recess 44 of the lid 13 and the vent of the case 12.
It is sucked into the suction side of the electric blower 15 via 45, passes through this electric blower 15 and becomes exhaust air, and the main body exhaust port 16
Is exhausted from the outside.

Next, when removing the dust collected in the cup portion 33 of the dust cup 31, first, the case body 12
The lid 13 is rotated with respect to.

After this, the handle portion of the dust cup 31
Grasping and lifting 46, the lever 47 provided on the upper end of the handle 46 is moved. Then, the bottom surface portion 48 of the cup portion 33 of the dust cup 31 rotates and opens due to its own weight, and the dust collected in the cup portion 33 falls due to its own weight.

Further, when removing the net filter 42, after removing the auxiliary filter 43 and the like from the dust cup 31, the net filter 42 is pulled out to the upper side of the dust cup 31. At this time, the inner periphery of the seal packing 39 contacts the outer peripheral surface of the net filter 42 and moves the outer peripheral surface of the net filter 42 downward relative to the net filter 42. The seal packing 39 removes the fine dust that has been captured by the net filter 42 and adhered to the outer peripheral surface of the net filter 42. Then, the removed fine dust falls to the cup portion 33 due to its own weight and is collected in the cup portion 33.

As described above, according to the above-described embodiment, the net filter 42 is inserted into the communication port 38 and protrudes into the cup portion 33, so that the area of the net filter 42 at the cup portion 33 is increased. Therefore, the suction air exhausted from the cup portion 33 to the exhaust port 41 through the communication port 38 is dispersed and passes through the entire portion of the net filter 42 protruding into the cup portion 33. As a result, fine dust captured by the net filter 42 from the suction air exhausted from the cup portion 33 is dispersed and attached to the entire portion of the net filter 42 projecting into the cup portion 33. The clogging of 42 can be prevented more.

Further, the net filter 42 has a cyclone unit 35.
Since it is integrally formed from the cup portion 33 to the cup portion 33, there is no formation of a gap or the like where dust is likely to collect near the communication port 38 near the net filter 42 or between the cup portion 33 and the cyclone portion 35. The clogging of the net filter 42 can be further prevented.

Further, the seal packing 39 hermetically closes the gap between the outer peripheral surface of the net filter 42 and the communication port 38, so that the suction air exhausted from the cup portion 33 can reliably secure the net filter 42. Since it passes, the dust can be more reliably captured by the net filter 42. at the same time,
Since the suction air sucked into the cup portion 33 does not leak into the cyclone portion 35, the swirling wind generated in the cup portion 33 is not weakened by this suction wind, so the dust collection performance of the dust cup 31 is improved. Can be improved.

Since the tip of the inner circumference of the seal packing 39 abuts against the outer circumferential surface of the net filter 42 and is pushed downward, the upward suction air exhausted from the cup portion 33 is sealed. Even if it hits the gap between 39 and the outer peripheral surface of the net filter 42, dust does not collect in this gap, and this suction air does not create a gap between the seal packing 39 and the outer peripheral surface of the net filter 42.

Furthermore, when the net filter 42 is removed, at the same time, dust sticking to the outer peripheral surface of the net filter 42 can be removed by the seal packing 39, so that the net filter 42 can be prevented from being clogged.

Further, the suction air sucked into the cup portion 33 moves along the air passage formed between the outer peripheral surface of the net filter 42 and the inner peripheral surface of the cup portion 33, and the cup portion 33 moves.
Since the swirling swirling wind is generated more strongly in the 33, the centrifugal force that acts on the dust of this swirling wind can be increased, so even finer dust can be collected, and the dust can be more reliably collected in the cup 33. Can be centrifuged.

Further, only the net filter 42 is used for the cup portion.
It is possible to prevent the dust inside the 33 from being discharged from the cup portion 33, and it is possible to more strongly generate a swirling swirling wind in the cyclone component portion 37 and the cup portion 33, and thus the communication port is formed.
Since dust can be collected from the suction air exhausted from the 38, it is not necessary to separately provide a filter or the like at the communication port 38, and the manufacturability can be improved.

Since the net filter 42 can be removed, the dust attached to the net filter 42 can be cleaned by removing the net filter 42, so that the usability for the user can be further improved.

Although the cyclone type canister type vacuum cleaner has been described in the above-described embodiment, a pot type or upright type vacuum cleaner can also be used correspondingly.

Moreover, the gap between the outer peripheral surface of the net filter 42 and the communication port 38 is airtightly closed by the seal packing 39.
For example, even if the gap between the outer peripheral surface of the net filter 42 and the communication port 38 is closed with a brush or the like protruding toward the center of the communication port 38, the same operational effect as in the above-described one embodiment can be obtained.

Further, without attaching the seal packing 39, a rib protruding in the radial direction of the net filter 42 is provided at a position corresponding to the upper surface of the separation wall 36 on the outer peripheral surface of the net filter 42, and the rib communicates with this rib. A gap between the mouth 38 and the outer peripheral surface of the net filter 42 may be closed. In this case, make a gap between the communication port 38 and the outer peripheral surface of the net filter 42,
Can be blocked more reliably.

Then, the net filter 42 is used as an auxiliary filter.
It may be formed integrally with 43. In this case, simply by removing the auxiliary filter 43 from the dust cup 31, the net filter 42 is removed from the exhaust port 41 and at the same time the seal packing 39 is removed.
Thus, the dust attached to the outer peripheral surface of the net filter 42 can be removed. Therefore, the net filter 42 can be cleaned more easily.

[0055]

According to the present invention, the catching means can be made large by projecting the catching means to the dust collecting portion through the communication port, and a gap or the like where dust is likely to collect is not formed near the catching means. Therefore, it is possible to further prevent the clogging of the capturing means.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a dust collector for an electric vacuum cleaner according to the present invention.

FIG. 2 is a perspective view showing a part of the same electric vacuum cleaner.

FIG. 3 is a perspective view showing the same electric vacuum cleaner.

FIG. 4 is a side sectional view showing a dust collecting device of a conventional vacuum cleaner.

[Explanation of symbols]

11 Vacuum cleaner body 15 electric blower 31 Dust cup as a dust collector 33 Cup part as dust collecting part 34 Inlet 35 Cyclone as a dust separator 38 Communication port 39 Seal packing as a sealing means 41 Exhaust port 42 Net filter as a capturing means

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masatoshi Tanaka             Toshiba Tec, 43 Horiyamashita, Hadano City, Kanagawa Prefecture             Hadano Factory Co., Ltd. (72) Inventor Hiroshi Yokoyama             Toshiba Tec, 43 Horiyamashita, Hadano City, Kanagawa Prefecture             Hadano Factory Co., Ltd. (72) Inventor Kiyoshi Ebe             Toshiba Tec, 43 Horiyamashita, Hadano City, Kanagawa Prefecture             Hadano Factory Co., Ltd. (72) Inventor Yoshihiro Tsuchiya             Toshiba Tec, 43 Horiyamashita, Hadano City, Kanagawa Prefecture             Hadano Factory Co., Ltd. (72) Inventor Ai Tanaka             Toshiba Tec, 43 Horiyamashita, Hadano City, Kanagawa Prefecture             Hadano Factory Co., Ltd. (72) Inventor Hitoshi Takahata             Toshiba Tec, 43 Horiyamashita, Hadano City, Kanagawa Prefecture             Hadano Factory Co., Ltd. F-term (reference) 3B062 AH02 AH05                 4D053 AA03 AB01 BB07 BC01 BD04                       CC02 CC04 DA10

Claims (3)

[Claims] 1. A dust separating section having an intake port and an exhaust port for centrifugally separating the dust from an intake air sucked from the intake port, and a dust separating section provided below the dust separating section for separating the dust in the dust separating section. A dust collecting part for collecting dust; a communication port provided between the dust collecting part and the dust separating part, through which suction air exhausted from the dust collecting part to the exhaust port of the dust separating part passes; Attached to the exhaust port, projecting toward the dust collecting part through the communication port, the suction air exhausted from the dust collecting part to the exhaust port through the communication port passes, and dust from the suction air flows. A dust collecting device for an electric vacuum cleaner, comprising: a capturing means for capturing. 2. The dust collecting apparatus for an electric vacuum cleaner according to claim 1, further comprising a sealing means provided at the communication port and airtightly closing a gap between the communication port and the capturing means. 3. A vacuum cleaner main body accommodating an electric blower, and the dust collector according to claim 1 or 2, which is provided in the vacuum cleaner main body and separates dust from suction air from the electric blower. A characteristic vacuum cleaner.