JP2003325400A - Cyclone type dust collecting apparatus and vacuum cleaner using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cyclone type dust collecting device for storing a large quantity of dust in a dust storage space, and to provide a vacuum cleaner with the same. <P>SOLUTION: A nearly cylindrical filter holder is concentrically provided in a nearly cylindrical dust box main body to form a nearly cylindrical cyclone space between the inner surface of the peripheral wall of the dust box and the outer peripheral surface of the filter holder. A nearly cylindrical dust storage space is formed under the cyclone space, and furthermore, an interrupting means for interrupting turn of the dust in the dust storage space is provided. <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 using the dust collector.
More specifically, the present invention relates to a dust storage technique in a dust storage portion.

[0002]

2. Description of the Related Art Generally, a cyclone type dust collecting device is known as a dust collecting device used for an electric vacuum cleaner or the like which does not use a disposable paper pack. In the conventional cyclone type dust collector, a substantially cylindrical filter is provided in the substantially cylindrical dust box body (that is, the outer case of the dust box), and a swirling air flow is provided between the filter and the inner surface of the peripheral wall of the dust box body. A substantially cylindrical cyclone space for generating (cyclones) is formed. Then, the dust separated in the cyclone space is configured to be dropped and accumulated in a substantially cylindrical dust storage space formed below the cyclone space.

[0003]

However, in such a cyclone type dust collecting apparatus, since dust and the like separated from the air swirl with the swirling air flow in the dust storing space, almost all of them are swung. Not compressed. Therefore, there is a problem that a large amount of dust and the like cannot be stored in the dust storage space and the dust must be frequently discarded.

In order to achieve the above object, the present invention has been made in view of the above circumstances, and a cyclone type dust collecting apparatus capable of storing a large amount of dust in a dust storing space, and such a The purpose of the present invention is to provide an electric vacuum cleaner having a built-in dust collector.

[0005]

According to the present invention, a substantially cylindrical dust box main body, a substantially cylindrical filter holder concentrically arranged in the dust box main body, a peripheral wall inner surface of the dust box main body and a filter are provided. A substantially cylindrical cyclone space formed between the outer peripheral surface of the holding body, a substantially cylindrical dust storage space formed below the cyclone space, and a damming means for damming the swirling of dust in the dust storage space. There is provided a cyclone type dust collecting device having:

According to this dust collector, the dust contained in the air sucked by the dust collector is centrifugally separated from the air in the cyclone space, and is dropped and accumulated in the dust storage space below. The dust accumulated in the dust storage space is swirled by the swirling air flow, but the swirl is blocked by the damming means and accumulated in a compressed state. Therefore, a lot of dust can be accumulated unlike the conventional one that is accumulated while turning continuously.

It is preferable that the damming means is arranged so as to dam the swirling of dust at least on the outer peripheral side of the dust storage space. Dust that swirls in the dust storage space by the swirling air flow is pressed against the outer peripheral side of the dust storage space and swirls. The effect of compressing dust by the air flow can be maximized, and the dust can be efficiently accumulated in the dust storage space.

Further, it is preferable that the damming means has an air passage which allows a swirling air flow. According to this structure, a swirling air flow having a predetermined strength can be maintained by appropriately setting the size of the air passage, and dust is continuously compressed by the swirling air flow. Can be.

According to another aspect of the present invention, there is provided an electric vacuum cleaner incorporating the dust collecting device configured as described above. According to such an electric vacuum cleaner, since a large amount of dust can be accumulated in the dust box of the same size,
There is no need to throw away dust frequently.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments in which the dust collecting apparatus according to the present invention is embodied in an electric vacuum cleaner will be described below with reference to FIGS. 1 is a perspective view showing an electric vacuum cleaner according to an embodiment of the present invention, FIG. 2 is a plan view of the electric vacuum cleaner, FIG. 3 is a left side view of the electric vacuum cleaner, and FIG. 4 is the electric vacuum cleaner. FIG. 5 is a perspective view of a dust box of the electric vacuum cleaner, FIG. 6 is a front view of the dust box, and FIG.
Is a vertical cross-sectional view of the central portion of the dust box, FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7, and FIG. 9 is I in FIG.
It is an X-IX sectional view.

As shown in FIGS. 1 to 4, an electric vacuum cleaner according to an embodiment of the present invention is of a canister type and is provided as a dust collector in a suction path in the front part of the cleaner main body 1. The cyclone type dust box 2 is detachably inserted from above, and the electric blower 3 is built in the rear portion of the cleaner body 1.

Further, this electric vacuum cleaner has a connecting port 4 on the front end surface of the cleaner main body 1. Although not shown, a suction tool is connected to the connection port 4 via a suction hose and a suction pipe. The cleaner body 1 is provided with one front wheel 1a (see FIG. 3) and two rear wheels 1b and 1c (see FIGS. 1 and 2) so that it can move on the floor.

The dust box 2 comprises a dust box body 10 forming an outer case, a substantially cylindrical outer filter holder 20 concentrically arranged inside the dust box body 10, and an outer filter holder 20 inside the outer filter holder 20. A substantially cylindrical inner filter holder 30 arranged concentrically
And the like (see FIGS. 4 and 7). The dust box body 10, the outer filter holder 20, and the inner filter holder 30 are configured to be disassembled from each other. The dust box body 10 is made of transparent or translucent synthetic resin.

The outer filter holder 20 is shown in FIGS.
As shown in FIG. 2, the outer cylindrical body 21 having a substantially cylindrical shape, a plurality of slits 22 formed in the upper portion of the peripheral wall of the outer cylindrical body 21 and extending in the vertical direction, and the outer cylindrical body 21 covering the slits 22. And a substantially cylindrical outer filter 23 and the like mounted on the peripheral wall thereof.

An outer flange portion 24 is provided on the peripheral wall of the outer tubular body 21 so as to extend from the lower end of the outer filter 23 toward the inner surface of the peripheral wall of the dust box body 10. The outer gap 2 between
5 is formed. As a result, the dust box body 1
The outer cyclone space 50 surrounded by the inner wall surface of the dust box body 10, the outer filter 23, and the collar portion 24 is provided between the inner wall surface of the outer peripheral wall of the dust box body 20 and the outer filter holder 20.
, The gap 25, the inner surface of the peripheral wall of the dust box body 10,
An outer cylindrical body 21 and an outer dust storage space 51 surrounded by the collar 24 are formed below the collar 24. The outer dust storage space 51 communicates with the outer cyclone space 50 through the gap 25.

The gap 25 is a passage for dropping the dust separated in the outer cyclone space 50 into the outer dust storage space 51. At this time, the protruding tip portion 24a of the collar portion 24 is formed so as to be curved downward so that dust can be smoothly dropped.

The inner filter holder 30 has a substantially cylindrical inner cylindrical body 31, a plurality of longitudinally extending slits 32 formed in a lower portion of the peripheral wall of the inner cylindrical body 31, and the slits 3.
An inner filter 33 having a substantially cylindrical shape and attached to the peripheral wall of the inner cylindrical body 31 so as to cover the inner cylindrical body 31 is provided.

Further, as shown in FIGS. 7 and 9, plate-like damming means 26 extending in the radial direction are provided at two locations integrally with the outer filter holder 21 at the lower portion of the peripheral wall of the outer filter holder 21. Has been formed. The damming means 26 is for damming the swirling of dust in the outer dust storage space 51. The outer filter holder 21 is inserted into the dust box body 10 through the hole 10a on the upper surface of the dust box body 10 during assembly. Therefore, the radius up to the outer peripheral end of the damming means 26 is determined by the dust box body 10
Is formed so as to be smaller than the radius of the hole 10a provided on the upper surface. The height of the damming means 26 is
It is formed so as to reach the inner surface of the collar portion 24. However, an air passage 27 is provided in the damming means 26 so that the swirling air flow can be maintained in the outer dust storage space 51. The air passage 27 is formed at a height corresponding to the dust accumulation height from the lower end of the damming means 26 so that a swirling air flow having a predetermined strength can be maintained even when dust is accumulated. There is.

An inner flange 34 is provided on the peripheral wall of the inner tubular body 31 so as to project from the lower end of the inner filter 33 toward the inner surface of the outer tubular body 21. A gap 35 is formed between the portion 35 and the portion 34. As a result, a gap between the inner surface of the outer tubular body 21 and the inner filter holding body 30, the inner cyclone space 60 surrounded by the inner wall of the outer tubular body 21, the inner filter 33, and the collar portion 34, and the gap. 35 and an inner dust storage space 61 that is located below the collar portion 34 and communicates with the inner cyclone space 60 via the gap 35.

The gap 35 is a passage for dropping the dust separated in the inner cyclone space 60 into the inner dust storage space 61. At this time, the protruding tip portion 34a of the collar portion 34 is formed so as to be curved downward so that dust can be smoothly dropped.

As shown in FIG. 7, the outer filter holder 20 and the inner filter holder 30 are fixed to the lower surface of the upper lid 40 that closes the upper end opening of the dust box body 10 in a suspended state.

Specifically, an inner lid portion 28 extending substantially horizontally outwardly on the upper portion of the outer tubular body 21 is fitted to the inner wall of the upper lid portion 40 with the seal ring 45 sandwiched therebetween. Inner lid 2
The gap between the dust box body 8 and the dust box body 10 is hermetically sealed by a seal ring 46 attached to the step portion of the inner lid portion 28.

On the other hand, a cylindrical holder 36 extending substantially vertically upward is formed on the upper portion of the inner cylindrical body 31.
A plurality of slits (not shown) extending in the vertical direction are formed on the peripheral wall of the cylindrical holder 36, and a cylindrical filter 37 is held inside the slits. Then, the cylindrical holder 36 has a cylindrical filter 37.
It is housed inside the upper lid 40 in a state of holding.
The gap between the cylindrical holder 36 and the inner lid portion 28 is hermetically sealed by a seal ring 47 attached to the lower end of the peripheral wall of the cylindrical holder 36.

On the upper part of the peripheral wall of the dust box body 10,
The intake pipe 11 is provided so as to project outward. The intake pipe 11 is formed in a position, shape and size such that the front end side opening 11a is fitted into the connection port 4 (see FIGS. 1 and 7) on the front end surface of the cleaner body 1 from the inside.

Further, as shown in FIG. 8, the rear end side opening 1 of the intake pipe 11 in the peripheral wall of the dust box body 10 is opened.
A guide rib 12 is provided on 1b. The guide ribs 12 are formed to extend in the circumferential direction along the peripheral wall of the dust box body 10. This guide rib 12
Guides the air flowing into the inside of the dust box body 10 through the intake pipe 11 along the swirling direction of the swirling air flow generated inside the dust box body 10 (for example, the clockwise direction in FIG. 8). It is for.
Therefore, due to the guide action of this guide rib 12,
The external air containing dust sucked from the intake pipe 11 can smoothly swirl inside the dust box body 10 and the dust collection efficiency can be improved.

Further, as shown in FIGS. 5 to 7, a bottom lid 70, which can be opened and closed by a hinge 14 provided at the bottom of the handle 13, is attached to the opening at the bottom of the dust box body 10. ing. In this bottom lid 70, the clamp 16 formed at the lower end of the lever 15 is pushed from the locking claw 71 of the bottom lid 70 by pushing the upper portion of the lever 15 provided below the intake pipe 11 on the peripheral wall of the dust box body 10. It comes off to open the lower end opening of the dust box body 10.

Further, by opening the bottom lid 70 having such a structure, the dust accumulated in the outer dust storage space 51 and the inner dust storage space 61 inside the dust box body 10 can be dropped downward, and the dust box The inside of the main body 10 can be easily cleaned.

Outer filter 23 and inner filter 33
Is a polyethylene mesh filter arranged in a cylindrical shape on the peripheral walls inside the outer tubular body 21 and the inner tubular body 31 which serve as passages for filtered air. The outer filter 2
The types and materials of the inner filter 3 and the inner filter 33 are not particularly limited. For example, as the inner filter 33, a filter paper filter folded in a pleat shape (bellows shape) may be arranged in a tubular shape.

Next, the flow of air and dust in this electric vacuum cleaner will be described. The dust-containing air sucked from the outside of the cleaner main body 1 through the suction tool, the suction pipe, and the suction hose is inside the dust box main body 10 through the connection port 4 and the intake pipe 11, that is, the outer cyclone space 5
0, and it turns along the inner surface of the peripheral wall of the dust box body 10. And the coarse dust contained in this air
The dust box body 10 is separated by the centrifugal action.
Collected near the inner surface of the surrounding wall. As a result, the air from which the coarse dust has been removed flows into the outer filter 23 while swirling. Further, the coarse dust accumulated near the inner surface of the peripheral wall of the dust box body 10 falls downward through the outer gap 25 and accumulates in the outer dust storage space 51.

In the outer dust storage space 51, a swirling air flow is formed through the air passage 27 under the influence of the swirling air flow in the outer cyclone space 50. For this reason, the dust 53 (see FIG. 9) that has fallen and accumulated in the outer dust storage space 51 is the outer dust storage space 51.
It is pressed against the outer peripheral side of the block and swirled, blocked by the blocking means 26, and pressed against the side surface of the blocking means 26 to be compressed.

On the other hand, the air flowing into the outer filter 23, that is, the air flowing into the inner cyclone space 60 swirls as in the outer cyclone space 50. Then, relatively fine dust is centrifugally separated by the swirling air flow in the inner cyclone space 60, and the outer filter holder 20.
Are accumulated on the inner surface of the surrounding wall. The accumulated relatively fine dust is dropped into the inner dust storage space 61 below the inner collar portion 34 by the swirling air flow, and the inner dust storage space 61 is discharged.
Be deposited on.

Since the bottom lid 70 is provided with packing 72 for airtightly closing the gap between the bottom edge of the outer tubular body 21 and the bottom lid 70, the outer portion along the bottom lid 70 is provided. Air does not flow from the dust storage space 51 into the inner dust storage space 61.

The air from which most of the dust (that is, coarse dust and relatively fine dust) is filtered by the dust box body 10 as described above, the cylindrical filter 37 provided inside the upper filter 40 from the inner filter 33. Flows to.
Then, the cylindrical filter 37 removes finer dust. The air from which finer dust has been removed by the filter 37 is used as the exhaust port 41 at the rear end of the upper lid 40.
Is sent to the outside of the dust box 2 and is sucked into the electric blower 3 through the communication passage 6 shown in FIG. The air drawn into the electric blower 3 is filtered by the exhaust filter 7 from the electric blower 3, and then the mesh-shaped exhaust port 8 (see FIG. 4) formed on the side wall of the cleaner body 1 and the rear wheel 1b or 1c. It is discharged to the outside through the mesh 9 (see FIG. 1).

According to the present embodiment configured as described above, the following effects can be obtained. According to the embodiment with the above-described configuration, the damming means 26 that dams the swirling of dust in the outer dust storage space 51 is provided in the substantially cylindrical outer dust storage space 51 formed below the outer cyclone space 50. Therefore, the dust 53 accumulated in the outer dust storage space 51 is swirled by the swirling air flow,
The turning is blocked by the damming means 26 and accumulated in a compressed state. Therefore, a lot of dust can be accumulated unlike the conventional one that is accumulated while turning continuously.

Further, since the damming means 26 is provided so as to dam the swirling of the dust on the outer peripheral side of at least the outer dust storage space 51, the dust compressing effect by the swirling air flow is maximized. It can be exerted, and dust can be efficiently accumulated in the outer dust storage space 51. Further, since the damming means 26 is provided with the air passage 27 that allows the swirling air flow, dust can be continuously compressed by the swirling air flow.

In the above embodiment, the damming means 26 are arranged at two places at substantially equal angle intervals, but if the number is too large, the swirling force of the dust becomes weak, so the dust is removed. The effect of damming, compressing and depositing is reduced. Further, when the damming means 26 is provided only at one place, the function part for damming the dust is reduced, so that the effect of damming and compressing and depositing the dust is reduced. Therefore, the damming means 26 is preferably installed at two to three locations at equal angles. Further, the damming means 26 may be any means as long as it prevents dust from swirling, and its shape and material are not limited to those in the above embodiment. For example, a cloth-made material having the above-described shape and having air permeability may be provided below the peripheral wall of the outer filter holder 21.

[0037]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, dust can be pressed against the damming means and compressed by the swirling air flow, and a large amount of dust can be accumulated in the dust storage space. You can

[Brief description of drawings]

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

FIG. 2 is a plan view of the same electric vacuum cleaner.

FIG. 3 is a left side view of the electric vacuum cleaner.

FIG. 4 is a vertical cross-sectional view of the central portion of the electric vacuum cleaner.

FIG. 5 is a perspective view of a dust box of the electric vacuum cleaner.

FIG. 6 is a front view of the dust box.

FIG. 7 is a vertical cross-sectional view of the central portion of the dust box.

8 is a sectional view taken along line VIII-VIII in FIG.

9 is a sectional view taken along line IX-IX in FIG.

[Explanation of symbols]

2 dust box 10 Dust box body 20 Outer filter holder 26 Weir means 27 Air passage 50 Outer cyclone space 51 Outside dust storage space

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Toshiyuki Fujiyoshi             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Hiromichi Matsuhashi             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Takaya Azumi             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. F-term (reference) 3B062 AH03                 4D053 AA03 AB01 BA05 BB06 BC01                       BD04 CD23

Claims (4)

[Claims] 1. A dust box body having a substantially cylindrical shape, a filter holder having a substantially cylindrical shape concentrically arranged in the dust box body, and an inner surface of a peripheral wall of the dust box body and an outer peripheral surface of the filter holder. A cyclone-type dust collecting apparatus having a substantially cylindrical cyclone space, a substantially cylindrical dust storage space formed below the cyclone space, and a damming means for damming the swirling of dust in the dust storage space. 2. The cyclone type dust collecting apparatus according to claim 1, wherein the damming means is provided so as to dampen the swirling of dust at least on the outer peripheral side of the dust storage space. 3. The cyclone type dust collecting apparatus according to claim 1, wherein the damming means has an air passage which allows a swirling air flow. 4. An electric vacuum cleaner using the cyclone type dust collector according to claim 1. Description: