JP2003339593A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of easily removing dust sticking to a filter. <P>SOLUTION: A cleaning plate 37 having a brush 38 brought into sliding contact with an outer filter 9 of an outer filter part 6 disposed in a dust box body 5 is mounted to the outer peripheral part of the outer filter 9, and the cleaning plate 37 is locked 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 to remove dust on the outer peripheral surface of the outer filter 9 by the brush 38 of the cleaning plate 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 vacuum cleaner provided with a cyclone type dust box.

[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]

DISCLOSURE OF THE INVENTION The present invention has a cylindrical body for forming a cyclone space between a cleaner body, a dust box attached to the cleaner body, and an inner wall of the dust box disposed in the dust box. A filter is provided, and a dust removing member that comes into contact with the filter and removes dust adhering to the filter is disposed on the outer peripheral portion of the filter so as to be slidable in the axial direction of the filter.

With the filter housed in the dust box, the dust removing member is locked to the opening of the dust box with a predetermined holding force, and when the filter is removed from the dust box, the dust removing member slides on the outer peripheral surface of the filter. It is desirable to let

Further, it is more preferable that the dust removing member is locked to the opening of the dust box with a predetermined holding force so as to restrict the movement in both the inside and outside directions of the dust box in a state where the filter is housed in the dust box.

[0008]

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 in the front end surface of the cleaner body 1.

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

The outer filter portion 6 includes an outer tubular 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 flange portion 10 extending toward the inner wall of the dust box main body 5 is provided on the outer peripheral side surface of the outer tubular member 8, and a gap 34 is formed between the flange portion 10 and the inner wall of the dust box main body 5. Has been formed.

Therefore, the space between the inner wall of the dust box body 5 and the outer filter portion 6 is almost vertically divided by the collar portion 10 and is surrounded by the inner wall of the dust box body 5, the outer filter 9 and the collar portion 10. The first cyclone space 25, and the first cyclone space 25 and the gap 3
A space 26 is formed to collect dust communicating with each other.

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.

On the outer peripheral portion of the outer filter 9 of the outer filter portion 6, a disc-shaped cleaning plate 37 having a hole through which the outer filter 9 penetrates is arranged.
7 slides between the inner lid portion 8b of the outer filter portion 6 and the upper surface of the collar portion 10, that is, between the upper end and the lower end of 9 of the outer filter.

A brush 38, which is in sliding contact with the outer filter 9, is disposed on the inner peripheral portion of the cleaning plate 37. As the cleaning plate 37 slides relative to the outer filter portion 6, the brush 38 slides. The dust that adheres to the outer filter 9 can be removed by the brush 38.

A locking claw 39 is provided on the outer peripheral portion of the cleaning plate 37.
When the outer filter portion 6 is housed in the dust box body 5, the cleaning plate 37 is locked to the opening edge of the upper surface of the dust box body 5, and the brush 38 of the cleaning plate 37 is the outermost filter of the outer filter 9. Since the cleaning plate 37 is positioned at the upper part and is locked by the locking claws 39 in the upper opening of the dust box body 5,
When the upper filter 14 is removed and lifted up when the outer filter 9 is clogged, the outer filter 6 moves upward together with the upper cover 14, so that the brush 38 slides on the outer peripheral surface of the outer filter 9. The dust adhering to the outer filter 9 can be scraped off.

Further, the cleaning plate 37 has an outer filter 9
By engaging the upper lid portion 14 with a predetermined force or more, the engaging claw 39 and the dust box body 5 are disengaged from each other, and the outer filter 9,
The dust box body 5, the inner filter 12 and the like can be easily washed with water to improve usability.

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 to the lower surface of the upper lid portion 14 which closes the upper end opening of the dust box body 5 in a suspended state.

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 portion 14, and the outer filter 9 is opposed to the cleaning plate 37 locked at the open end of the dust box body 5. The brush 38 disposed on the cleaning plate 37 scrapes off the dust adhering to the outer filter 9 because the sliding of the outer filter 9
Can be easily removed and the dust collection efficiency can be maintained.

When the outer filter 9 is lifted together with the upper lid portion 14 with a larger force, the engaging claw 39 of the cleaning plate 37 is disengaged from the dust box body 5, and the outer filter 9 is completely removed from the dust box body 5. Therefore, the outer filter 9 and the dust box body 5 can be
It becomes easier to wash with water and the usability can be improved.

In the above embodiment, the dust box body 5 of the cleaning plate 37 is retained by the locking claws 39 of the cleaning plate 37.
Although it is configured to regulate the upward movement, the cleaning plate 37 is attached to the upper surface opening of the dust box body 5 so as to regulate the vertical movement, and the upper lid portion 14 is removed with a predetermined force or more and lifted upward. The cleaning plate 37 may be disengaged when the cleaning plate 37 is released.

According to this structure, when the outer filter 9 is clogged, the outer filter 6 is lifted together with the upper lid portion 14, and the outer filter 9 with respect to the cleaning plate 37 locked at the opening end of the dust box body 5 is lifted. 9 slides relatively, dust on the outer filter 9 is scraped off by the brush 38 arranged on the cleaning plate 37, and the outer filter portion 6 is pushed downward as it is to move the cleaning plate 37 to the outer side. The filter 9 can be automatically returned to the upper end position, and the outer filter 9 can be dust-removed with one hand, so that usability can be further improved.

In the above-described embodiment, when the outer filter 9 is lifted together with the upper lid portion 14 with a force greater than a predetermined value, the cleaning plate 37 is disengaged from the dust box body 5, and each component is washed with water. Although the maintenance is facilitated, the cleaning plate 37 may be configured so as not to be disengaged.

[0043]

According to claim 1 of the present invention, when the filter is clogged, the dust removing member disposed on the outer peripheral portion of the filter is slid with respect to the filter to scrape the dust adhering to the filter. It can be dropped and the dust on the filter can be easily removed and usability can be improved.

According to the second aspect of the present invention, when the filter is clogged, when the filter is taken out from the dust box, the filter slides relative to the dust removing member locked in the opening of the dust box. Dust adhering to the filter can be scraped off by the dust removing member, and dust can be easily removed from the filter to improve usability.

Further, when the filter is taken out with a force larger than a predetermined value, the dust removing member comes off from the opening of the dust box.
Maintenance such as washing the filter and dust box with water can be facilitated and usability can be further improved.

According to claim 3 of the present invention, when the filter is clogged, when the filter is taken out from the dust box, the filter slides relative to the dust removing member locked in the opening of the dust box. The dust removing member can scrape off the dust adhering to the filter, and also when the filter is stored in the dust box, the filter slides relative to the dust removing member in the opposite direction to remove the dust adhering to the filter. Since it can be scraped off,
The filter dust can be removed more reliably and easily, and usability can be further improved.

When the filter is taken out with a force greater than a predetermined value, the dust removing member comes off from the opening of the dust box.
Maintenance such as washing the filter and dust box with water can be facilitated 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 of the dust box showing a state in which the filter is lifted to remove dust from the filter.

FIG. 10 is a cross-sectional view showing a state in which the filter and the dust removing member are removed.

FIG. 11 is a sectional view of the filter.

12 is a sectional view taken along the line BB in FIG.

[Explanation of symbols]

1 Vacuum cleaner body 5 Dust box body 6 Outside filter section (filter) 9 Outer filter 37 Cleaning plate (dust removing member) 38 Brush (dust removing member) 39 Locking claw

Continued front page    F-term (reference) 3B062 AH02 AH05                 4D053 AA03 AB01 BA01 BB07 BC01                       BD04 CA01 CC05 CE09 DA01

Claims (3)

[Claims] 1. A cleaner body, a dust box mounted on the cleaner body, and a cylindrical filter disposed in the dust box to form a cyclone space between the dust box inner wall and the dust box. A vacuum cleaner, characterized in that a dust removing member that comes into contact with the filter and removes dust adhering to the filter is disposed on the outer peripheral portion so as to be slidable in the axial direction of the filter. 2. The outer peripheral surface of the filter is removed by the dust removing member when the filter is housed in the dust box and the dust removing member is locked to the opening of the dust box with a predetermined holding force. The vacuum cleaner according to claim 1, wherein the vacuum cleaner is slid. 3. The dust removing member in an opening of the dust box in a state where the filter is housed in the dust box.
The dust box is locked with a predetermined holding force so as to restrict the movement of the dust box in both directions.
Alternatively, the electric vacuum cleaner according to claim 2.