JP2003339595A - Dust collecting device and 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 body 39 having a brush 38 brought into sliding contact with an outer filter 9 disposed inside a dust box body 5 is disposed at the outer peripheral part of the outer filter 9, and a sliding rod 40 is laid between the cleaning body 39 and a bottom cover 21 for closing the lower face opening of the dust box body 5 in an openable manner. When the bottom cover 21 is opened, the cleaning body 39 is slid following the downward rotation of the bottom cover to remove dust sticking to the outer peripheral surface of the outer filter 9. <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]

SUMMARY OF THE INVENTION The present invention comprises 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. It is characterized in that it is provided with a lid that is freely closed, a dust removing member that is slidably arranged on the outer peripheral surface of the filter, and an interlocking unit that slides the dust removing member when the lid is opened.

It is desirable that the filter be detachably housed in the dust box body, and the interlocking means be detachably mounted on the lid.

Further, it is preferable that the interlocking means has a positioning means for positioning the dust removing member at a predetermined position with respect to the filter when the lid is closed.

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 and the dust box. A lid for opening and closing the dust disposal port of the dust box so as to be openable and closable, a dust removing member slidably arranged on the outer peripheral surface of the filter, and an interlocking means for sliding the dust removing member when the lid is opened are provided. It is characterized by It is preferable that the filter is detachably housed in the dust box body, and the interlocking unit is detachably mounted on the lid.

Further, it is preferable that the interlocking means has a positioning means for positioning the dust removing member at a predetermined position with respect to the filter when the lid is closed.

[0010]

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 includes a substantially cylindrical outer filter portion 6 and a substantially cylindrical outer filter portion 5 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 has 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 provided 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 to the space portion 26 through the gap 34, the dust is less likely to be caught in the tip portion 10a. Therefore, dust can be efficiently accumulated in the space 26 of the dust box body 5.

The collar 10 has a bottom lid 2 whose lower end will be described later.
A pair of guide holes 37, through which the slide rod 40 swingably attached to 0 is inserted, are formed at 180 ° intervals.

On the outer peripheral portion of the outer filter 9 of the outer filter portion 6, an annular cleaning body 39 having a brush 38 which is in contact with the outer filter 9 over the entire circumference is disposed.
The cleaning body 39 is slidably supported on the outer filter 9 by a retractable slide rod 40.

The slide rod 40 is constructed as an inner slide type, and the lower end of the rod arranged on the innermost side of the slide rod 40 is swingably and detachably attached to a bottom lid 21 described later. When the bottom lid 21 is opened, the slide rod 40 extends due to the weight of the bottom lid 21, and the cleaning body 39 arranged on the upper end of the slide rod 40 moves downward while sliding on the outer periphery of the outer filter 9, The dust adhering to the outer filter 9 can be removed by 38.

Further, the outermost rod of the slide rod 40 has a step portion 41 formed substantially at the center thereof, and the step portion 41 is formed in a state where the bottom lid 21 of the dust box body 5 is closed.
Is brought into contact with the lower surface of the collar portion 10 so that the cleaning body 39 attached to the upper end of the slide rod 40 is positioned at the uppermost portion of the outer filter 9, and the cleaning body 39 is also positioned. The cleaning member 39 is prevented from sliding above the uppermost portion of the
It is possible to prevent inconveniences such as breakage.

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 protrude from the inner wall of the outer tubular member 8. A gap 35 is formed between them.

Accordingly, the space between the inner wall of the outer tubular member 8 and the inner filter portion 7 is substantially vertically divided by the collar portion 13, and is 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 hanging 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 outer side are provided. 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 intake tube 15. 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 under 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.

A support portion 42 is formed on the upper surface of the bottom lid 21 at a position corresponding to the guide hole 37 formed in the collar portion 10, and the lower end of the slide rod 40 is swung on the support portion 42. It is freely and detachably supported.

The bottom lid 21 pushes the upper portion of a lever 22 provided below the intake pipe 15 to thereby cause the lever 2 to move.
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. For example, a mesh filter is provided on the outer periphery 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 to the outer filter 9, dust is drawn downward through the gap 34, and accumulates 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. From the exhaust port 30 to the outside of the dust box 2 and then taken into the electric blower 3 through the communication passage 31 and then from the electric blower 3 to the exhaust filter 3
It is filtered through 2, and is exhausted to the outside through the mesh-shaped exhaust port 33 formed on the side surface of the cleaner body 1 and the mesh of the rear wheel 1b or 1c.

When the dust accumulated in the dust box body 5 is removed, the lever 22 is operated to operate the bottom cover 2
When 1 is opened, the dust accumulated in the space 26 and the space 28 drops and can be easily discarded, and the bottom lid 21
As the slide rod 40 pivotally supported by the bottom lid 21 slides downward with the opening of the
The cleaning body 39 attached to the upper end portion of the slide rod 41 slides downward, and the brush 38 of the cleaning body 39 can remove the dust adhering to the outer peripheral surface of the outer filter 9, so that the accumulated dust is discarded at the same time as the outer side. The filter 9 can be dust-removed, the outer filter 9 can always be kept in a non-clogging state, and a high suction force can be maintained.

Since the slide rod 40 is detachably attached to the support portion 42 of the bottom lid 21, the upper lid portion 14
Is removed together with the outer filter portion 6, and the bottom lid 2
By removing the slide rod 40 from 1, it is easy to disassemble and clean the inside of the dust box body 5, the outer filter portion 6 and the like, and it is possible to keep it clean and improve usability.

Further, the slide rod 40 is formed with a step portion 41 at substantially the center thereof, and the bottom lid 21 of the dust box body 5 is formed.
The cleaning body 3 attached to the upper end of the slide rod 40 with the step portion 41 in contact with the lower surface of the collar portion 10 in the closed state.
9 is positioned at the uppermost part of the outer filter 9, so that when the bottom lid 21 is closed, the cleaning body 39 slides above the uppermost part of the filter 9 and contacts the upper lid part 14. It is possible to prevent inconveniences such as damage to the cleaning body 39 such as contact with the cleaning body 39.

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

[0045]

According to claim 1 or claim 4 of the present invention, when the dust accumulated in the dust box is discarded, the lid is opened and at the same time, the dust removing member slides along the outer peripheral surface of the filter. Since the dust is removed by removing the dust easily, the filter can be easily removed and usability can be improved, and the filter can always be kept in a non-clogging state, so that a high suction force can be maintained.

Further, according to claim 2 or claim 5 of the present invention, in addition to the above effects, by removing the filter and the interlocking means, the inside of the dust box, the filter and the like can be easily disassembled and cleaned and can be kept clean. You can improve the property.

Further, claim 3 or claim 6 of the present invention.
According to the above, by forming the positioning means in the interlocking means, the dust removing member is positioned at the predetermined position with respect to the filter with the lid closed, so that the dust removing member slides over the predetermined range or more. Inconvenience such as breakage can be prevented.

[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 with the bottom lid open.

[Explanation of symbols]

1 Vacuum cleaner body 5 Dust box body 6 Outside filter section (filter) 9 Outer filter 21 Bottom lid 38 Brush (dust removing member) 39 Cleaning body (dust removing member) 40 slide rod (interlocking means) 41 step (positioning means)

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                       QA09 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, and a lid which openably and closably closes a dust disposal port of the dust box. A dust collecting apparatus comprising: a dust removing member slidably arranged on the outer peripheral surface of the filter; and interlocking means for sliding the dust removing member when the lid is opened. 2. The filter is detachably housed in a dust box body, and the interlocking device is detachably mounted on a lid.
The dust collector described. 3. The interlocking means has a positioning means for positioning the dust removing member at a predetermined position with respect to the filter when the lid is closed. The dust collector according to 1. 4. A vacuum cleaner main body, a dust box mounted on the vacuum cleaner main body, and a tubular filter that forms a cyclone space between the dust box and the inner wall of the dust box. A lid for opening and closing the dust disposal opening, a dust removing member slidably arranged on the outer peripheral surface of the filter; and an interlocking unit for sliding the dust removing member when the lid is opened. A characteristic vacuum cleaner. 5. The filter is detachably housed in a dust box main body, and the interlocking device is detachably attached to a lid.
Vacuum cleaner as described in. 6. The interlocking means has a positioning means for positioning the dust removing member at a predetermined position with respect to the filter when the lid is closed, according to any one of claims 4 and 5. Vacuum cleaner as described in.