JP2003339596A - Dust collecting apparatus and vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust collecting apparatus and a vacuum cleaner capable of easily removing dust sticking to a filter. <P>SOLUTION: A cleaning member 37 having a brush 41 brought into sliding contact with an outer filter 9 of an outer filter part 6 disposed inside a dust box body 5, is disposed at the outer peripheral part of the outer filter 9, and the cleaning member 37 is stuck to an opening part of the dust box body 5. When plugging occurs to the outer filter 9, the outer filter part 6 is lifted from the dust box body 5 together with an upper cover part 14 to remove dust on the outer peripheral surface of the outer filter 9 by the brush 41 of the cleaning member 37. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cyclone type dust collector and an electric vacuum cleaner equipped with the dust collector.

[0002]

2. Description of the Related Art As a conventional electric vacuum cleaner, a disposable dust-collecting paper pack is not used, and it is detachably attached to a suction path of a cleaner main body and has a spiral air flow (so-called cyclone) inside. It is known to use a cyclone type dust collecting device in which a cylindrical filter is provided in a dust box to be generated and dust filtered by this filter can be accumulated in the dust box. This dust collector is economical because it can be used semipermanently due to the maintenance of the filter, as compared with a disposable paper pack.

In the above structure, the dust collection force can be improved by reducing the size of the filter hole, and the dust passing through the filter can be significantly reduced, so that the load on the secondary filter disposed on the downstream side of the filter can be reduced. Although it is possible to reduce the number of motors and prevent the failure of the motor, etc., finer pores in the filter tend to cause clogging and reduce the dust collection efficiency.Therefore, it is necessary to frequently remove dust adhering to the filter. There was a problem with usability.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above drawbacks, and an object of the present invention is to provide an electric vacuum cleaner which can easily remove dust adhering to a filter.

[0005]

The present invention is provided with a dust box and a cylindrical filter which is disposed in the dust box and forms a cyclone space between the inner wall of the dust box and the filter. A dust removing member for removing dust adhering to the filter by abutting against the filter is disposed, and the dust removing member and the filter are disposed so as to be relatively slidable in the axial direction of the filter.

Further, the present invention comprises a dust box and a cylindrical filter which is detachably disposed in the dust box and forms a cyclone space between the dust box inner wall and the dust box. A dust removing member for removing dust adhering to the filter by abutting is disposed, and the dust removing member is removably positioned and attached to the dust box.

[0007] It is desirable that the dust removing member and the collar portion are integrally formed with a flange portion that partitions the cyclone space in the axial direction.

Further, the present invention comprises a cleaner body, a dust box mounted on the cleaner body, and a cylindrical filter which is disposed in the dust box and forms a cyclone space between the dust box inner wall. , A dust removing member for removing dust adhering to the filter by contacting the filter is provided on an outer peripheral portion of the filter, and the dust removing member and the filter are relatively slidable in an axial direction of the filter. It is characterized by having done.

Further, according to the present invention, a cylindrical filter for forming a cyclone space between a cleaner body, a dust box attached to the cleaner body, and a dust box inner wall detachably arranged in the dust box. And a dust removing member for removing dust adhering to the filter by contacting the filter is provided on the outer peripheral portion of the filter, and the dust removing member is removably positioned and attached to the dust box.

Further, it is preferable that the dust removing member and the collar portion are integrally formed with a collar portion for partitioning the cyclone space in the axial direction.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a cleaner body, which is detachably provided by inserting a cyclone type dust box 2 into the front portion of the cleaner body 1 from above, and an electric blower 3 at the rear portion of the cleaner body 1. It is built in. The vacuum cleaner body 1
Includes a front wheel 1a and a pair of rear wheels 1b and 1c so as to be movable on the floor surface.

A series of suction hoses, suction pipes and suction tools (not shown) are connected to the connection port 4 formed on the front end surface of the cleaner body 1.

The dust box 2 has a substantially cylindrical outer filter part 6 and a substantially cylindrical outer filter part 6 inside a transparent or semi-transparent dust box body 5 made of a transparent synthetic resin or the like. It is arranged concentrically with.

The outer filter portion 6 includes an outer cylindrical member 8
And an outer filter 9 that covers the periphery of a plurality of slits 8a formed in the upper side surface of the outer tubular member 8 along the vertical direction.

A cylindrical cleaning member 37 is arranged on the outer peripheral side surface of the outer cylindrical member 8. The cleaning member 37 is
A support plate 38 fixed to the upper opening of the dust box body 5 and located at the upper end of the outer filter 9, and a collar portion 10 integrally formed at the lower end of the outer filter 9 and extending toward the inner wall of the dust box body 5. And a connecting rib 39 that connects the support plate 37 and the collar portion 10 at a plurality of points, and a plurality of large openings 40 are formed at positions corresponding to the outer filter 9.

A gap 34 is formed between the collar portion 10 and the inner wall of the dust box body 5, and the space between the inner wall of the dust box body 5 and the outer filter portion 6 is substantially vertically divided by the collar portion 10. A first cyclone space 25 surrounded by the inner wall of the dust box body 5, the outer filter 9 and the collar portion 10, and a space portion 26 for collecting dust communicating with the first cyclone space 25 through the gap 34 are formed. Has been done.

The tip portion 10a of the collar portion 10 is bent downward so that when the dust moves from the first cyclone space 25 through the gap 34 to the space portion 26, the dust is less likely to be caught by the tip portion 10a. Therefore, dust can be efficiently accumulated in the space 26 of the dust box body 5.

A brush 41, which is in contact with the outer peripheral surface of the outer filter 9, is disposed on the inner peripheral portion of the support plate 38 of the cleaning member 37, and the brush 41 is fixed to the dust box body 5. With the relative sliding of the outer tubular member 8, the dust adhering to the outer filter 9 can be removed by the brush 41.

The inner filter portion 7 is composed of the inner cylindrical member 1
1, an inner filter 12 that covers the periphery of a plurality of slits 11a formed in the lower side surface of the inner tubular member 11 along the vertical direction, and a plurality of inner filters 12 that extend above the inner tubular member 11. It is composed of a cylindrical holder 11b having a slit.

A flange portion 13 extending toward the inner wall of the outer tubular member 8 is provided on the outer peripheral side surface of the inner tubular member 11 so as to project from the flange portion 13 and the inner wall of the outer tubular member 8. A gap 35 is formed between them.

Therefore, the inner wall of the outer tubular member 8 and the inner filter portion 7 are substantially vertically divided by the flange portion 13, and are surrounded by the inner wall of the outer tubular member 8, the inner filter 12 and the collar portion 13. A second cyclone space 27 and a space portion 28 that collects dust that communicates with the second cyclone space 27 via a gap 35 are formed.

The tip portion 13a of the collar portion 13 is bent downward so that when the dust moves from the second cyclone space 27 through the gap 35 to the space portion 28, the dust is less likely to be caught by the tip portion 10a. Therefore, dust can be efficiently accumulated in the space 26 of the dust box body 5.

As shown in FIG. 8, the outer filter portion 6 and the inner filter portion 7 are fixed in a suspended state on the lower surface of the upper lid portion 14 that closes the upper end opening of the dust box body 5.

Specifically, the inner lid portion 8b extending above the outer tubular member 8 is fitted to the inner wall of the upper lid portion 14 with the seal ring 8c interposed therebetween. The space between the inner lid portion 8b and the dust box body 5 is hermetically sealed by a seal ring 8d provided on a step formed on the outer peripheral portion of the inner lid portion 8b.

On the other hand, the cylindrical holder 11b extending above the inner cylindrical member 11 is housed inside the upper lid portion 14 while holding the cylindrical filter 29, and the cylindrical holder 11b and the outside thereof are accommodated. The space between the cylindrical member 8 and the inner lid portion 8b is hermetically sealed by a seal ring 11c provided at the lower end of the outer peripheral surface of the cylindrical holder 11b.

When the dust box 2 is attached to the cleaner body 1, the cleaner body 1 is attached to the side surface of the dust box 2.
An intake pipe 15 communicating with the connecting port 4 of the cleaner is projectingly provided. In addition, the dust box 2 is formed near the center in the width direction.

A guide rib 18 extends in the direction along the inner surface of the dust box 2 near the opening 17 on the base side (inner surface side of the dust box 2) of the intake pipe 15, and the guide rib 18 allows the guide rib 18 to pass through. The air flowing into the dust box 2 can be guided in the direction along the inner wall of the dust box 2 (clockwise direction in FIG. 7). Thereby, the dust-containing air sucked from the intake pipe 15 can be swirled along the inner surface of the dust box 2 to generate a cyclone airflow in the dust box 2, and high dust collection efficiency can be obtained.

A handle 19 is formed in the vertical direction on the rear surface side of the cleaner body 1 on the outer periphery of the dust box body 5, and a hinge 20 provided below the handle 19 is provided at the bottom of the dust box body 5. A bottom lid 21 configured to be openable and closable is attached.

The bottom lid 21 presses the upper portion of a lever 22 provided below the intake pipe 15 to thereby make the lever 2
The clamp 23 formed at the lower end of 2 is disengaged from the locking portion 24 on the bottom lid 21 side to open the lower end opening of the dust box body 5, and the space portion 26 and the space portion 28 inside the dust box body 5 are provided. The dust accumulated on the bottom cover 2
When 1 is opened, it falls and the inside of the dust box 2 can be easily cleaned.

The types and materials of the outer filter 9 and the inner filter 12 are not particularly limited in the present invention, but for example, a mesh filter is provided on the outer circumference of a tubular body that serves as a ventilation passage for filtered air. A filter or the like arranged in a shape is adopted. Further, other filters such as a filter in which a filter paper filter folded in a pleated shape (bellows shape) is arranged in a tubular shape can be adopted.

Next, the flow of dust and air in the vacuum cleaner of this embodiment will be described.

The dust-containing air sucked from the outside of the cleaner body 1 enters the dust box 2 through the connection port 4 and the intake pipe 15 and swirls along the inner wall of the dust box body 5.

Specifically, air swirls inside the first cyclone space 25 toward the outer filter 9, dust is drawn downward through the gap 34, and is accumulated in the space 26 at the bottom of the dust box body 5.

Similarly, the air flowing inside the outer filter 9 further swirls. Specifically, the second cyclone space 2
In the inside of the air 7, the air swirls into the inside filter 12, and the space 28 below the collar 13 becomes negative pressure as the swirling occurs. Therefore, dust of a size that cannot pass through the inside filter 12 passes through the gap 35. And is pulled downward and deposited in the space 28 at the bottom of the dust box body 5.

The bottom cover 21 has a packing 36 for closing a gap between the bottom end of the outer tubular member 8 and the bottom cover 21.
Is provided, the air does not leak from the space 26 to the space 28 along the bottom lid 21.

The air whose dust has been filtered by the dust box body 5 flows upward while swirling inside the inner tubular member 11, is further filtered by the cylindrical filter 29 inside the upper lid portion 14, and is then rear end of the upper lid portion 14. After being discharged from the exhaust port 30 to the outside of the dust box 2, it is taken into the electric blower 3 through the communication passage 31 shown in FIG. 6, filtered from the electric blower 3 through the exhaust filter 32, and formed on the side surface of the cleaner body 1. The air is exhausted to the outside through the mesh-shaped exhaust port 33 and the mesh of the rear wheel 1b or 1c.

When the outer filter 9 is clogged, the outer filter 6 is removed together with the upper lid 14 and lifted upward, and the outer filter 9 is removed from the cleaning member 37 fixed to the opening of the dust box body 5. Since 9 slides relatively, the dust attached to the outer filter 9 is scraped off by the brush 41 attached to the support plate 38 of the cleaning member 37, and the outer filter 9 can be easily removed to improve the dust collection efficiency. Can be maintained.

Since both the outer filter portion 6 and the cleaning member 37 are removably mounted on the dust box body 5, they can be easily disassembled and washed, hygiene can be maintained, and usability can be improved.

In the above embodiment, the dust box 2 is attached to the cleaner body 1, but the dust box may be arranged in the middle of the extension pipe connected to the cleaner body. Good.

[0041]

According to claim 1 or claim 4 of the present invention, when the filter is clogged, the filter is removed from the dust box so that the dust removing member and the filter slide relative to each other and the filter outer periphery is removed. The dust adhering to the surface can be easily removed and the suction force can be maintained.

Further, according to claim 2 or claim 5 of the present invention, when the filter is clogged, the filter is removed from the dust box so that the dust removing member and the filter slide relative to each other and the filter outer periphery is removed. Dust adhering to the surface can be easily removed, the suction force can be maintained, and
Since the dust removing member is detachably attached to the dust box, it can be easily disassembled and washed, and hygiene can be maintained and usability can be improved.

Further, claim 3 or claim 6 of the present invention.
According to the above, by integrally forming the dust removing member and the flange portion, the dust can be easily removed from the filter without increasing the number of parts, the suction force can be maintained, and the dust removing member and the flange portion can be integrally formed. Since it can be removed, it can be easily disassembled, and it becomes easier to wash, etc., and usability can be further improved.

[Brief description of drawings]

FIG. 1 is an external perspective view of an electric vacuum cleaner showing an embodiment of the present invention.

FIG. 2 is a top view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is an external perspective view of the dust box.

FIG. 5 is a front view of the same.

FIG. 6 is a sectional view of the electric vacuum cleaner.

7 is a cross-sectional view taken along the line AA of the dust box in FIG.

FIG. 8 is a cross-sectional view of the dust box.

FIG. 9 is a cross-sectional view showing a state in which the upper lid is removed.

[Explanation of symbols]

1 Vacuum cleaner body 5 Dust box body 6 Outside filter section (filter) 9 Outer filter 37 Cleaning member (dust removing member) 38 Support plate 41 Brush (dust removing member)

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3B062 AH02                 4D053 AA03 AB01 BA03 BB07 BC01                       CA01 CB11 CC05 CD13 CE02                       DA10                 4D058 JA02 JB22 KB11 MA31 QA01                       QA08 SA20

Claims (6)

[Claims] 1. A dust box, and a cylindrical filter which is disposed inside the dust box and forms a cyclone space between the dust box inner wall and the dust box. A dust collecting device, wherein a dust removing member for removing dust is provided, and the dust removing member and the filter are provided so as to be relatively slidable in an axial direction of the filter. 2. A dust box, and a cylindrical filter which is detachably disposed in the dust box and forms a cyclone space between the dust box inner wall and the dust box. A dust collecting device, wherein a dust removing member for removing dust attached to the dust collecting member is disposed, and the dust removing member is removably positioned and attached to a dust box. 3. The dust collecting apparatus according to claim 1 or 2, further comprising a collar portion that partitions the cyclone space in an axial direction, and the dust removing member and the collar portion are integrally formed. 4. A vacuum cleaner main body, a dust box mounted on the vacuum cleaner main body, and a cylindrical filter which is disposed in the dust box and forms a cyclone space between the dust box inner wall and the dust box. A dust removing member that is in contact with the filter and removes dust adhering to the filter is disposed on the outer peripheral portion, and the dust removing member and the filter are disposed so as to be relatively slidable in the axial direction of the filter. And vacuum cleaner. 5. A cleaner main body, a dust box attached to the cleaner main body, and a tubular filter that is detachably disposed in the dust box and forms a cyclone space between the dust box inner wall and the dust box. An electric vacuum cleaner, wherein a dust removing member for contacting the filter and removing dust adhering to the filter is disposed on an outer peripheral portion of the filter, and the dust removing member is removably positioned and attached to a dust box. 6. The electric vacuum cleaner according to claim 4, further comprising a flange portion that partitions the cyclone space in an axial direction, and the dust removing member and the flange portion are integrally formed.