JP4187496B2 - Vacuum cleaner - Google Patents

Vacuum cleaner Download PDF

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Publication number
JP4187496B2
JP4187496B2 JP2002292457A JP2002292457A JP4187496B2 JP 4187496 B2 JP4187496 B2 JP 4187496B2 JP 2002292457 A JP2002292457 A JP 2002292457A JP 2002292457 A JP2002292457 A JP 2002292457A JP 4187496 B2 JP4187496 B2 JP 4187496B2
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JP
Japan
Prior art keywords
cyclone
filter
dust
electric blower
vacuum cleaner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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JP2002292457A
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Japanese (ja)
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JP2004121648A (en
Inventor
潤 吉田
喬哉 安積
定男 福島
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Priority to JP2002292457A priority Critical patent/JP4187496B2/en
Publication of JP2004121648A publication Critical patent/JP2004121648A/en
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  • Cyclones (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は電気掃除機に関する。さらに詳しくは、ごみがサイクロン部から集塵部へ円滑に流れることができるとともにフィルタ部の目詰まりを防止することができる電気掃除機に関する。
【0002】
【従来の技術】
従来より、サイクロン集塵器にフィルタ部を設け、サイクロン部で塵埃などを分離した空気をフィルタ部を介して電動送風機側へ流す電気掃除機が知られている。
【0003】
たとえば、従来の電気掃除機として、電動送風機および該電動送風機の吸気側に接続されたサイクロン集塵器を備え、サイクロン集塵器内部には、傘状の仕切板をもつ中筒が取り付けられ、仕切板によって、塵埃を空気と分離するサイクロン部と集塵部とが隔てられた電気掃除機が知られている(たとえば、特許文献1参照)。
【0004】
【特許文献1】
特開2002−143052号公報
【0005】
【発明が解決しようとする課題】
しかし、従来のサイクロン式の電気掃除機は、サイクロン部において旋回流を利用して塵埃と空気とを分離しており、砂などの比重の重いごみを分離する場合にはその分離特性を充分発揮することができるが、比重が軽いごみや髪の毛などの長いごみに対する分離効果がわるいという問題がある。たとえば、サイクロン部で分離されなかった軽いごみや長いごみは、中筒のフィルタ部に貼り付いてとどまりやすく、または中筒に巻きついたりする。そして、その影響で電動送風機の吸気側に設けられたフィルタも目詰まりしやすくなるなどの問題もある。
【0006】
本発明はかかる問題を解消するためになされたものであり、ごみがサイクロン部から集塵部へ円滑に流れることができるとともにフィルタ部の目詰まりを防止することができる電気掃除機を提供することを目的とする。
【0007】
【課題を解決するための手段】
本発明の電気掃除機は、電動送風機および該電動送風機の吸気側に接続されたサイクロン集塵器を備え、該サイクロン集塵器内部には、塵埃を空気と分離するサイクロン部と集塵部とが仕切板によって隔てられた電気掃除機であって、記サイクロン部には、略中心部にサイクロン部内部に延びるように導入口を形成し、該導入口には、略円錐状に傾斜した形状に形成されたフィルタ部が配設され、前記サイクロン部の旋回流により浄化された空気を、前記フィルタ部を通過して前記電動送風機に導き、前記集塵部に形成されたフィルタを有する開口を介して前記集塵部を前記電動送風機に連通させて、前記サイクロン部から前記集塵部への流れを発生させ、前記電動送風機の上流側に、前記サイクロン部のフィルタ部と前記集塵部のフィルタとを通過した空気を濾過する2次フィルタを設けたことを特徴とする。
【0012】
【発明の実施の形態】
つぎに図面を参照しながら本発明の電気掃除機をさらに詳細に説明する。図1は本発明の電気掃除機の一実施の形態を示す断面説明図、図2は図1のサイクロン集塵器の断面説明図、図3は図1のサイクロン集塵器のIII−III線断面図、図4は本発明の電気掃除機の他の実施の形態を示す丸孔タイプのフィルタ部を備えたサイクロン集塵器の断面説明図および図5は本発明の電気掃除機の比較例である円筒状のフィルタ部および平板状の仕切板を有するサイクロン集塵器の断面説明図である。
【0013】
図1〜3に示される電気掃除機は、上面に取っ手3が設けられた掃除機の上ケース1と下面に移動用前車輪4および後車輪5が設けられた掃除機の下ケース2とからなる筐体内部に、電池6、下ケース2より直立せしめた壁と緩衝体8を介在して設置されたファンとモータとからなる電動送風機7、およびパッキン14を介在して着脱自在に設けられたサイクロン集塵器9を収納したものである。なお、サイクロン集塵器9は、掃除機本体と一体形成してもよい。
【0014】
サイクロン集塵器9は、サイクロン部9a内部で発生する旋回流の回転軸がほぼ水平方向に延びるように横置きに配置されている。すなわち、サイクロン集塵器9内部には、傘状の仕切板11aをもつ中筒11が水平方向に取り付けられている。この仕切板11aによって、サイクロン集塵器9の内部空間は、塵埃を空気と分離するサイクロン部9aおよび集塵部9bの2つの空間に分けられる。
【0015】
サイクロン集塵器9には、本発明のフィルタ部に相当する1次メッシュフィルタ12、および追加の2次フィルタ13が配設されている。1次メッシュフィルタ12は、中筒11のサイクロン部9a内部に延びる部分に形成された導入口11bに配設され、サイクロン部9a内部で浄化された空気をろ過することができる。
【0016】
本実施の形態では、図2に示されるように、1次メッシュフィルタ12が、略円錐状に傾斜した形状を呈しているため、サイクロン部9a内部で空気と分離されなかった軽いごみや長いごみなども、1次メッシュフィルタ12の外周面でとどまりにくいため、円滑に集塵部9へ流れることができるとともにフィルタの目詰まりがなくなる。
【0017】
中筒11の軸方向に対する1次メッシュフィルタ12の傾斜角度θ1は、15〜60度程度、好ましくは20〜40度程度であれば、サイクロン部9aから集塵部9bへのごみの円滑な流入とともにフィルタの目詰まり防止という効果を発揮することができ、その一方で傾斜角度θ1が大きくなりすぎることによって吸込性能に影響を与えることもない。
【0018】
さらに、本実施の形態では、仕切板11aの少なくともサイクロン部9a側に向いている部分も略円錐状に傾斜した形状を呈しており、前述の1次メッシュフィルタ12の傾斜面と仕切板11aのサイクロン部9a側の傾斜面とがなめらかに連結されているため、本実施の形態の電気掃除機では、サイクロン部9a内部に吹き溜まりが生じることなく、さらにごみをサイクロン部9aから集塵部9bへ円滑に流入させることができる。
【0019】
とくに、仕切板11aのサイクロン部9a側に向いている部分の中筒11の軸方向に対する傾斜角度θ2が、1次メッシュフィルタ12の中筒11の軸方向に対する傾斜角度θ1とほぼ同じ(すなわち同一平面になる)かそれ以上の角度をなしている(すなわち仕切板11aの根元部分がサイクロン部9a内部に張り出す)ようにすれば、サイクロン部9a内部には吹き溜まりは全く発生しなくなるのでさらに好ましい。
【0020】
仕切板11aの傾斜角度θ2も、1次メッシュフィルタ12の傾斜角度θ1の範囲(15〜60度程度、好ましくは20〜40度程度)から適宜選定すればよい。
【0021】
ここで、本発明の比較例である図5に示される1次メッシュフィルタ12の円周面と平板状の仕切り板11aとが直交配置された場合においては、サイクロン部9a内部の仕切板11aの根元部分周辺において吹き溜まりAができるため、塵埃などの軽いごみや髪の毛などの長いごみは、吹き溜まりAで滞留して集塵部9bに円滑に流れなくなる。
【0022】
1次メッシュフィルタ12としては、本発明ではとくに限定されるものではないが、たとえば直径1mm程度の開口を多数有する合成樹脂シートを採用することができる。また、合成樹脂シートの代わりにパンチングメタルなどの複数の丸孔が形成されたフィルタを採用することができる。さらには、図4に示されるように、中筒11の上部を構成する部材そのものに直径1mm程度の開口22を多数形成し、この部分を1次メッシュフィルタとすることもできる。
【0023】
2次フィルタ13は、フィルタの機能を有するものであれば本発明においてとくに限定されるものではないが、たとえばウレタンフォーム製フィルタ、好ましくは密度70〜90kg/m3程度のイノアック・コーポレーション製の「モルトフィルタ(商品名)」などを採用することができる。
【0024】
さらに、サイクロン集塵器9の下流側端部には、2次フィルタ13の周辺部を押えるためにフィルタの蓋10が取り付けられている。蓋10の中央部には、排気口10aが開口されている。
【0025】
サイクロン集塵器9は、蓋9dが胴部9eが着脱自在に気密的に連結できればよく、本発明ではとくに限定されるものではないが、たとえば蓋および胴部にそれぞれ段差部9fを設けて嵌合できるもの、または蓋9dおよび胴部9eにそれぞれおねじまたはめねじを形成して螺合できる連結部を有するのが好ましい。また、中筒11を保持するために、円環状のリブ9gが蓋9dの内面に形成されている。したがって、蓋9dを胴部9eから取り外せば、中筒11も容易に胴部9e内部から取り外すことができ、その結果、集塵部9bに捕集されたごみを容易に外部へ捨てることができる。
【0026】
前記実施の形態において、電動送風機7が作動すると、吸込口15に接続したホース(図示せず)を経て床用吸込口(図示せず)から塵埃を含んだ空気がサイクロン集塵器9の吸込口16から図2〜3の蓋9dの半周分の流路9hを通るときに旋回流となって開口9iを介してサイクロン部9aに導入され、ついでサイクロン集塵器9の内周壁に沿って中筒11の傘状の仕切板11aにより塵埃は空気と分離され、前述のように、それぞれ傾斜した略円錐状の1次メッシュフィルタ12および仕切板11aの外周面に沿って円滑に滑りながら集塵部9bに集塵される。
【0027】
しかも、サイクロン集塵器9の底面に形成された、メッシュフィルタ(図示せず)を有する開口9cを介して、サイクロン集塵器9は電動送風機8に連通しているため、サイクロン部9aから集塵部9bへの空気の流れを発生させることができ、集塵部9b内部のごみを圧縮することができる。
【0028】
一方、前述の旋回流によって浄化された空気は、1次メッシュフィルタ12を通過してさらに浄化され、ついで中筒11内部を通過して2次フィルタ13へ至る。
【0029】
そののち、中筒11内を通過する空気は、2次フィルタ13でろ過されたのち、電動送風機7を通過して集中排気口(図示せず)から外部へ排気される。
【0030】
【発明の効果】
本発明によれば、サイクロン部で空気と分離されなかったごみがフィルタ部の外周面でとどまることがなく、比重が軽いごみや髪の毛などの長いごみに対しても高い分離効果を発揮することができ、ごみはサイクロン部から集塵部へ円滑に流れることができる。そのため、ごみが中筒のフィルタ部に貼り付いたり、中筒に巻きついたりすることがなくなる。しかも、電動送風機の吸気側に設けられたフィルタの目詰まりも大幅に減少させることができる。したがって、メンテナンスが容易になるとともに製品寿命も大幅に長くなる。
【図面の簡単な説明】
【図1】本発明の電気掃除機の一実施の形態を示す断面説明図である。
【図2】図1のサイクロン集塵器の断面説明図である。
【図3】図1のサイクロン集塵器のIII−III線断面図である。
【図4】本発明の電気掃除機の他の実施の形態を示す丸孔タイプのフィルタ部を備えたサイクロン集塵器の断面説明図である。
【図5】本発明の電気掃除機の比較例である円筒状のフィルタ部および平板状の仕切板を有するサイクロン集塵器の断面説明図である。
【符号の説明】
1 電気掃除機
7 電動送風機
9 サイクロン集塵器
9a サイクロン部
9b 集塵部
11 中筒
11a 仕切板
12 1次メッシュフィルタ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum cleaner. More specifically, the present invention relates to a vacuum cleaner that can smoothly flow dust from a cyclone part to a dust collecting part and prevent clogging of a filter part.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a vacuum cleaner is known in which a filter unit is provided in a cyclone dust collector, and air separated from dust and the like in the cyclone unit is supplied to the electric blower side through the filter unit.
[0003]
For example, as a conventional vacuum cleaner, an electric blower and a cyclone dust collector connected to the intake side of the electric blower are provided, and inside the cyclone dust collector, an inner cylinder having an umbrella-shaped partition plate is attached, There is known a vacuum cleaner in which a cyclone section that separates dust from air and a dust collection section are separated by a partition plate (see, for example, Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2002-143052
[Problems to be solved by the invention]
However, conventional cyclone vacuum cleaners use a swirl flow in the cyclone section to separate dust and air, and when separating heavy dust such as sand, the separation characteristics are fully demonstrated. However, there is a problem in that the separation effect on light waste and long waste such as hair is poor. For example, light and long garbage that has not been separated in the cyclone section is likely to stay on the filter section of the middle cylinder or wind around the middle cylinder. As a result, there is a problem that the filter provided on the intake side of the electric blower is easily clogged.
[0006]
The present invention has been made to solve such a problem, and provides a vacuum cleaner capable of smoothly flowing dust from a cyclone portion to a dust collecting portion and preventing clogging of a filter portion. With the goal.
[0007]
[Means for Solving the Problems]
The vacuum cleaner of the present invention includes an electric blower and a cyclone dust collector connected to an intake side of the electric blower, and inside the cyclone dust collector, a cyclone part and a dust collection part for separating dust from air, Is a vacuum cleaner separated by a partition plate, the cyclone portion is formed with an introduction port extending substantially into the center of the cyclone portion, and the introduction port has a shape that is inclined in a substantially conical shape. The filter part formed in the above is disposed, and the air purified by the swirling flow of the cyclone part is guided to the electric blower through the filter part and has an opening having a filter formed in the dust collecting part. The dust collecting unit is communicated with the electric blower via the cyclone unit to generate a flow from the cyclone unit to the dust collecting unit, and on the upstream side of the electric blower, the filter unit of the cyclone unit and the dust collecting unit filter Characterized in that a secondary filter for filtering air passing through the.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, the vacuum cleaner of the present invention will be described in more detail with reference to the drawings. 1 is a cross-sectional explanatory view showing an embodiment of the electric vacuum cleaner of the present invention, FIG. 2 is a cross-sectional explanatory view of the cyclone dust collector of FIG. 1, and FIG. 3 is a III-III line of the cyclone dust collector of FIG. Sectional drawing, FIG. 4 is sectional explanatory drawing of the cyclone dust collector provided with the filter part of the round hole type which shows other embodiment of the vacuum cleaner of this invention, and FIG. 5 is a comparative example of the vacuum cleaner of this invention It is sectional explanatory drawing of the cyclone dust collector which has a cylindrical filter part which is these, and a flat partition plate.
[0013]
The vacuum cleaner shown in FIGS. 1 to 3 includes an upper case 1 having a handle 3 on the upper surface and a lower case 2 having a front wheel 4 and a rear wheel 5 on the lower surface. The battery 6, the wall standing upright from the lower case 2, the electric fan 7 including the fan and the motor installed via the buffer 8, and the packing 14 are detachably provided. The cyclone dust collector 9 is housed. The cyclone dust collector 9 may be formed integrally with the cleaner body.
[0014]
The cyclone dust collector 9 is disposed horizontally so that the rotational axis of the swirling flow generated inside the cyclone portion 9a extends in a substantially horizontal direction. That is, inside the cyclone dust collector 9, the middle cylinder 11 having an umbrella-shaped partition plate 11a is attached in the horizontal direction. The partition plate 11a divides the internal space of the cyclone dust collector 9 into two spaces, a cyclone portion 9a and a dust collection portion 9b that separates dust from air.
[0015]
The cyclone dust collector 9 is provided with a primary mesh filter 12 corresponding to the filter section of the present invention and an additional secondary filter 13. The primary mesh filter 12 is disposed in an introduction port 11b formed in a portion extending inside the cyclone portion 9a of the middle cylinder 11, and can filter the air purified inside the cyclone portion 9a.
[0016]
In the present embodiment, as shown in FIG. 2, since the primary mesh filter 12 has a substantially conical inclined shape, light and long waste that is not separated from air inside the cyclone portion 9a. Since it is difficult to stay on the outer peripheral surface of the primary mesh filter 12, etc., it can flow smoothly to the dust collecting portion 9 and the filter is not clogged.
[0017]
If the inclination angle θ 1 of the primary mesh filter 12 with respect to the axial direction of the middle cylinder 11 is about 15 to 60 degrees, preferably about 20 to 40 degrees, the dust from the cyclone section 9a to the dust collection section 9b is smooth. The effect of preventing clogging of the filter can be exhibited together with the inflow, and on the other hand, the suction performance is not affected by the inclination angle θ 1 becoming too large.
[0018]
Further, in the present embodiment, at least a portion of the partition plate 11a facing the cyclone portion 9a also has a substantially conical shape, and the inclined surface of the primary mesh filter 12 and the partition plate 11a described above. Since the inclined surface on the cyclone portion 9a side is smoothly connected, in the vacuum cleaner of the present embodiment, dust is further collected from the cyclone portion 9a to the dust collecting portion 9b without causing accumulation in the cyclone portion 9a. It can flow smoothly.
[0019]
In particular, the inclination angle θ 2 with respect to the axial direction of the middle cylinder 11 of the part of the partition plate 11 a facing the cyclone part 9 a is substantially the same as the inclination angle θ 1 with respect to the axial direction of the middle cylinder 11 of the primary mesh filter 12 ( In other words, if the angle is equal to or larger than that (ie, the root portion of the partition plate 11a protrudes into the cyclone 9a), no puddle is generated in the cyclone 9a. Further preferred.
[0020]
The inclination angle θ 2 of the partition plate 11a may be appropriately selected from the range of the inclination angle θ 1 of the primary mesh filter 12 (about 15 to 60 degrees, preferably about 20 to 40 degrees).
[0021]
Here, in the case where the circumferential surface of the primary mesh filter 12 shown in FIG. 5 which is a comparative example of the present invention and the flat partition plate 11a are arranged orthogonally, the partition plate 11a inside the cyclone portion 9a Since the dust accumulation A is generated around the root portion, light dust such as dust and long dust such as hair stay in the dust accumulation A and do not flow smoothly to the dust collecting portion 9b.
[0022]
The primary mesh filter 12 is not particularly limited in the present invention. For example, a synthetic resin sheet having a large number of openings having a diameter of about 1 mm can be employed. Moreover, the filter in which several round holes, such as punching metal, were formed instead of a synthetic resin sheet | seat is employable. Furthermore, as shown in FIG. 4, a large number of openings 22 having a diameter of about 1 mm can be formed in the member constituting the upper portion of the middle cylinder 11, and this portion can be used as a primary mesh filter.
[0023]
The secondary filter 13 is not particularly limited in the present invention as long as it has a filter function. For example, a filter made of urethane foam, preferably “INOAC Corporation having a density of about 70 to 90 kg / m 3 ” is used. A “malt filter (trade name)” or the like can be employed.
[0024]
Further, a filter lid 10 is attached to the downstream end of the cyclone dust collector 9 in order to press the periphery of the secondary filter 13. An exhaust port 10 a is opened at the center of the lid 10.
[0025]
The cyclone dust collector 9 is not particularly limited in the present invention as long as the lid 9d can be detachably and airtightly connected to the body 9e. For example, the lid 9d is fitted with a step 9f on the lid and the body. It is preferable to have a connecting portion that can be screwed together by forming a male screw or a female screw on the lid 9d and the body portion 9e, respectively. Further, in order to hold the middle cylinder 11, an annular rib 9g is formed on the inner surface of the lid 9d. Therefore, if the lid 9d is removed from the body portion 9e, the middle cylinder 11 can also be easily removed from the inside of the body portion 9e, and as a result, the dust collected in the dust collection portion 9b can be easily discarded to the outside. .
[0026]
In the above embodiment, when the electric blower 7 is activated, air containing dust is sucked into the cyclone dust collector 9 from the floor suction port (not shown) through a hose (not shown) connected to the suction port 15. When passing through the flow path 9h corresponding to a half circumference of the lid 9d in FIGS. 2 to 3 from the mouth 16, it is introduced into the cyclone portion 9a through the opening 9i, and then along the inner peripheral wall of the cyclone dust collector 9. Dust is separated from the air by the umbrella-shaped partition plate 11a of the middle cylinder 11, and as described above, the dust is collected while smoothly sliding along the inclined outer surfaces of the substantially conical primary mesh filter 12 and the partition plate 11a. Dust is collected in the dust portion 9b.
[0027]
In addition, since the cyclone dust collector 9 communicates with the electric blower 8 through an opening 9c having a mesh filter (not shown) formed on the bottom surface of the cyclone dust collector 9, the cyclone dust collector 9 collects from the cyclone portion 9a. The air flow to the dust part 9b can be generated, and the dust inside the dust collection part 9b can be compressed.
[0028]
On the other hand, the air purified by the swirling flow passes through the primary mesh filter 12 and is further purified, and then passes through the inside of the middle cylinder 11 to reach the secondary filter 13.
[0029]
After that, the air passing through the inner cylinder 11 is filtered by the secondary filter 13, then passes through the electric blower 7, and is exhausted to the outside through a concentrated exhaust port (not shown).
[0030]
【The invention's effect】
According to the present invention, the dust that has not been separated from the air in the cyclone portion does not stay on the outer peripheral surface of the filter portion, and a high separation effect can be exhibited even with respect to long dust such as dust with light specific gravity or hair. The garbage can flow smoothly from the cyclone part to the dust collecting part. Therefore, dust does not stick to the filter part of the middle cylinder or wrap around the middle cylinder. Moreover, clogging of the filter provided on the intake side of the electric blower can be greatly reduced. Therefore, the maintenance becomes easy and the product life is significantly prolonged.
[Brief description of the drawings]
FIG. 1 is a cross-sectional explanatory view showing one embodiment of a vacuum cleaner of the present invention.
2 is a cross-sectional explanatory view of the cyclone dust collector of FIG. 1. FIG.
3 is a cross-sectional view of the cyclone dust collector of FIG. 1 taken along line III-III.
FIG. 4 is a cross-sectional explanatory view of a cyclone dust collector equipped with a round hole type filter portion showing another embodiment of the electric vacuum cleaner of the present invention.
FIG. 5 is a cross-sectional explanatory view of a cyclone dust collector having a cylindrical filter portion and a flat partition plate, which is a comparative example of the electric vacuum cleaner of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 7 Electric blower 9 Cyclone dust collector 9a Cyclone part 9b Dust collection part 11 Middle cylinder 11a Partition plate 12 Primary mesh filter

Claims (1)

電動送風機および該電動送風機の吸気側に接続されたサイクロン集塵器を備え、該サイクロン集塵器内部には、塵埃を空気と分離するサイクロン部と集塵部とが仕切板によって隔てられた電気掃除機であって、
前記サイクロン部には、略中心部にサイクロン部内部に延びるように導入口を形成し、該導入口には、略円錐状に傾斜した形状に形成されたフィルタ部が配設され、
前記サイクロン部の旋回流により浄化された空気を、前記フィルタ部を通過して前記電動送風機に導き、
前記集塵部に形成されたフィルタを有する開口を介して前記集塵部を前記電動送風機に連通させて、前記サイクロン部から前記集塵部への流れを発生させ、
前記電動送風機の上流側に、前記サイクロン部のフィルタ部と前記集塵部のフィルタとを通過した空気を濾過する2次フィルタを設けたことを特徴とする電気掃除機。
An electric blower and a cyclone dust collector connected to the intake side of the electric blower are provided. Inside the cyclone dust collector, a cyclone part that separates dust from air and a dust collection part are separated by a partition plate. A vacuum cleaner,
In the cyclone part, an introduction port is formed so as to extend inside the cyclone part in a substantially central part, and a filter part formed in a shape inclined in a substantially conical shape is disposed in the introduction port,
The air purified by the swirling flow of the cyclone unit is guided to the electric blower through the filter unit,
The dust collecting unit is communicated with the electric blower through an opening having a filter formed in the dust collecting unit, and a flow from the cyclone unit to the dust collecting unit is generated.
A vacuum cleaner, wherein a secondary filter that filters air that has passed through the filter unit of the cyclone unit and the filter of the dust collecting unit is provided on the upstream side of the electric blower.
JP2002292457A 2002-10-04 2002-10-04 Vacuum cleaner Expired - Fee Related JP4187496B2 (en)

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Publication number Priority date Publication date Assignee Title
JP4241493B2 (en) 2004-04-28 2009-03-18 三洋電機株式会社 Dust collector for vacuum cleaner
JP2006034537A (en) * 2004-07-26 2006-02-09 Sanyo Electric Co Ltd Electric vacuum cleaner and swirling type dust collecting device
US7588610B2 (en) 2004-11-25 2009-09-15 Sanyo Electric Co., Ltd. Dust collector and vacuum cleaner having the same
JP4771119B2 (en) * 2005-06-28 2011-09-14 日本精工株式会社 Toroidal continuously variable transmission
JP3999791B2 (en) * 2005-07-21 2007-10-31 株式会社東芝 Electric vacuum cleaner
CN102038464B (en) * 2009-10-09 2013-12-25 宝田国际有限公司 Improved cyclonic chamber for air filtration devices

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