JP5049602B2 - Electric vacuum cleaner - Google Patents

Electric vacuum cleaner Download PDF

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JP5049602B2
JP5049602B2 JP2007008666A JP2007008666A JP5049602B2 JP 5049602 B2 JP5049602 B2 JP 5049602B2 JP 2007008666 A JP2007008666 A JP 2007008666A JP 2007008666 A JP2007008666 A JP 2007008666A JP 5049602 B2 JP5049602 B2 JP 5049602B2
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air passage
dust
vacuum cleaner
filter
air
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JP2008173261A (en
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篤至 森下
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Toshiba Corp
Toshiba Lifestyle Products and Services Corp
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Toshiba Corp
Toshiba Consumer Electronics Holdings Corp
Toshiba Home Appliances Corp
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Description

本発明は、掃除機本体に設けられた集塵部を備えた電気掃除機に関する。   The present invention relates to a vacuum cleaner including a dust collecting portion provided in a vacuum cleaner body.

従来、この種の電気掃除機は、電動送風機を収容した掃除機本体を備えている。この掃除機本体には、電動送風機の吸込側に連通して集塵部が設けられている。また、掃除機本体の前部には、集塵部の上流側に連通する本体吸込口が開口形成され、この本体吸込口には、ホース体、延長管および床ブラシなどが順次連通接続される。   Conventionally, this type of vacuum cleaner includes a vacuum cleaner body that houses an electric blower. The vacuum cleaner main body is provided with a dust collecting portion in communication with the suction side of the electric blower. In addition, a main body suction port that communicates with the upstream side of the dust collecting portion is formed in the front portion of the cleaner body, and a hose body, an extension pipe, a floor brush, and the like are sequentially connected to the main body suction port. .

このような電気掃除機の集塵部としては、例えば遠心分離により塵埃を空気から分離する、サイクロン分離式のものが知られている。この集塵部は、吸い込んだ塵埃を空気から遠心分離する分離部を備え、この分離部で旋回された吸込風の一部が、分離された塵埃とともに第1風路中へと流入するとともに、吸込風の他部が分離部の中心部から第2風路へと流入する。そして、集塵室に流入した吸込風は、集塵室内に配設されたフィルタを通過して第2風路の吸込風と合流した後、この第2風路の下流側に設けられたフィルタを通過して電動送風機に吸い込まれる(例えば、特許文献1参照。)。
特開2004−135994号公報(第4頁、図7)
As a dust collection part of such a vacuum cleaner, for example, a cyclone separation type that separates dust from air by centrifugation is known. The dust collection unit includes a separation unit that centrifuges the sucked dust from the air, and a part of the suction air swirled by the separation unit flows into the first air passage together with the separated dust, The other part of the suction air flows from the central part of the separation part into the second air path. The suction air flowing into the dust collection chamber passes through the filter disposed in the dust collection chamber and merges with the suction air in the second air passage, and then the filter provided on the downstream side of the second air passage. And is sucked into the electric blower (see, for example, Patent Document 1).
JP 2004-135994 A (page 4, FIG. 7)

しかしながら、上述の電気掃除機では、電動送風機の駆動による吸込風が分離部で分岐されるものの、最終的に共通のフィルタを通過して電動送風機に吸い込まれるため、このフィルタが経時的に目詰まりすると、この目詰まりの度合いに対応して吸込力が順次低下するという問題点を有している。   However, in the above-described electric vacuum cleaner, although the suction air generated by the driving of the electric blower is branched by the separation unit, it finally passes through the common filter and is sucked into the electric blower, so this filter becomes clogged over time. As a result, there is a problem that the suction force sequentially decreases in accordance with the degree of clogging.

本発明は、このような点に鑑みなされたもので、吸込力の経時的な低下を抑制した電気掃除機を提供することを目的とする。   This invention is made | formed in view of such a point, and it aims at providing the vacuum cleaner which suppressed the time-dependent fall of suction power.

本発明は、掃除機本体に設けられた集塵部が、本体吸込口の開口方向に沿いこの本体吸込口の下流側と集塵部の上流側とを連通する直線状の連通管に沿って電動送風機の吸込側に連通する第1風路と、電動送風機の駆動により本体吸込口を介して吸い込んだ空気に含まれる塵埃を慣性分離するように連通管の側部にて第1風路から分岐され、第1風路と合流して電動送風機の吸込側に連通する第2風路と、第1風路の第2風路との合流位置よりも上流側に設けられ、塵埃を捕集する主フィルタと、第2風路の合流位置よりも上流側に設けられ、塵埃を捕集する補助フィルタとを備えているものである。 According to the present invention, the dust collecting portion provided in the vacuum cleaner main body is along a straight communication pipe that communicates the downstream side of the main body suction port and the upstream side of the dust collecting portion along the opening direction of the main body suction port. A first air passage communicating with the suction side of the electric blower and a first air passage at the side of the communication pipe so as to inertially separate dust contained in the air sucked through the main body suction port by driving the electric blower. Branched and provided at the upstream side of the merging position of the second air passage that merges with the first air passage and communicates with the suction side of the electric blower and the second air passage of the first air passage, and collects dust And an auxiliary filter that is provided on the upstream side of the merging position of the second air path and collects dust.

本発明によれば、第1風路の第2風路との合流位置よりも上流側に主フィルタを設け、第2風路の合流位置よりも上流側に補助フィルタを設けることで、第1風路にて捕集する塵埃量が増加して第1風路の風路抵抗が大きくなると、吸い込んだ空気とともに塵埃の一部が第2風路から補助フィルタへと分岐され、吸込力の経時的な低下を抑制できるとともに、第1風路に吸い込まれた塵埃は慣性により連通管を直進して捕集されるので、集塵効率の低下を防止できるAccording to the present invention, the first filter is provided on the upstream side of the merging position of the first air passage with the second air passage, and the auxiliary filter is provided on the upstream side of the merging position of the second air passage. When the amount of dust collected in the air passage increases and the air passage resistance of the first air passage increases, a part of the dust is diverted from the second air passage to the auxiliary filter together with the sucked air, and the time of the suction force is increased. In addition, the dust that has been sucked into the first air passage can be collected by traveling straight through the communication pipe due to inertia, so that the dust collection efficiency can be prevented from being lowered .

以下、本発明の一実施の形態の電気掃除機の構成を図1ないし図3を参照して説明する。   Hereinafter, the structure of the vacuum cleaner of one embodiment of the present invention will be described with reference to FIGS. 1 to 3.

図1ないし図3において、1は掃除機本体であり、この掃除機本体1は床面を走行可能な、いわゆるキャニスタ型の電気掃除機である。この掃除機本体1は、上側が後方から前方へと下側に傾斜して開放された下ケース2と、この下ケース2の上部を覆う蓋体3とを有する本体ケース4を備え、この本体ケース4内には、電動送風機5を収容する電動送風機室6が後側に、蓋体3により上部が開閉され集塵部としての集塵ユニット7が着脱可能に配設される集塵室8が前側に、それぞれ隔壁Pにより区画されている。また、電動送風機室6には、電動送風機5の動作などを制御する制御手段9が収容されている。   1 to 3, reference numeral 1 denotes a vacuum cleaner main body, and the vacuum cleaner main body 1 is a so-called canister-type electric vacuum cleaner that can run on a floor surface. The vacuum cleaner main body 1 includes a main body case 4 having a lower case 2 whose upper side is opened to be inclined downward from the rear to the front, and a lid 3 that covers an upper portion of the lower case 2. In the case 4, an electric blower chamber 6 that houses the electric blower 5 is located on the rear side, and a dust collection chamber 8 in which an upper part is opened and closed by the lid 3 and a dust collection unit 7 as a dust collection unit is detachably disposed. Are partitioned by a partition wall P on the front side. Further, the electric blower chamber 6 accommodates a control means 9 for controlling the operation of the electric blower 5 and the like.

そして、本体ケース4の前端部には、集塵ユニット7を介して電動送風機5の吸込側に連通可能な本体吸込口11が開口形成され、この本体吸込口11には、ホース体12が着脱可能に設けられ、このホース体12の先端部に、手元操作部13が設けられ、この手元操作部13には、作業者が把持する把持部14が突設され、この把持部14には、作業者により電動送風機5の動作モードなどを設定する設定ボタン15が複数設けられている。そして、手元操作部13の先端部には、延長管16と吸込口体としての床ブラシ17とが順次連通接続される。   A main body suction port 11 that can communicate with the suction side of the electric blower 5 through the dust collecting unit 7 is formed at the front end of the main body case 4. A hose body 12 is attached to and detached from the main body suction port 11. A hand operating part 13 is provided at the tip of the hose body 12, and a gripping part 14 is provided on the hand operating part 13 to be gripped by an operator. A plurality of setting buttons 15 for setting an operation mode and the like of the electric blower 5 are provided by an operator. The extension pipe 16 and a floor brush 17 as a suction port body are sequentially connected to the distal end portion of the hand operation unit 13 in communication.

さらに、本体ケース4内には、電動送風機5に給電するための図示しない電源コードを巻回したコードリールが配設され、電源コードを本体ケース4に対して出し入れ可能となっている。   Further, a cord reel around which a power cord (not shown) for supplying power to the electric blower 5 is wound is disposed in the main body case 4 so that the power cord can be taken in and out of the main body case 4.

電動送風機5は、吸込側を前側とし、排気側を後側として掃除機本体1の左右方向の略中心位置、すなわち本体吸込口11の中心軸に沿って配設されている。さらに、この電動送風機5は、設定ボタン15により制御手段9に設定された動作モードに応じて動作される。   The electric blower 5 is disposed along a substantially central position in the left-right direction of the cleaner body 1, that is, along the central axis of the main body suction port 11 with the suction side as the front side and the exhaust side as the rear side. Further, the electric blower 5 is operated according to the operation mode set in the control means 9 by the setting button 15.

そして、集塵ユニット7は、本体吸込口11の下流側に連通する円筒状の連通管21を備え、この連通管21の下流側である後端部に、第1集塵部としての主集塵室22が連通して設けられ、かつ、連通管21の側部に、分岐管23が分岐されている。また、集塵ユニット7の下流側は、吸込風路25を介して電動送風機5の吸込側に連通接続されている。   The dust collection unit 7 includes a cylindrical communication pipe 21 that communicates with the downstream side of the main body suction port 11, and a main collection as a first dust collection section is provided at the rear end portion on the downstream side of the communication pipe 21. A dust chamber 22 is provided in communication with each other, and a branch pipe 23 is branched at a side portion of the communication pipe 21. In addition, the downstream side of the dust collection unit 7 is connected to the suction side of the electric blower 5 through the suction air passage 25.

連通管21は、本体吸込口11の開口方向に沿って中心軸を有するパイプであり、分岐管23の分岐部である分岐開口27が主集塵室22の上流側の側部に開口形成され、この分岐開口27に、分岐フィルタとしてのメッシュフィルタ29が取り付けられている。   The communication pipe 21 is a pipe having a central axis along the opening direction of the main body suction port 11, and a branch opening 27, which is a branch portion of the branch pipe 23, is formed on the upstream side portion of the main dust collection chamber 22. A mesh filter 29 as a branch filter is attached to the branch opening 27.

主集塵室22は、電気掃除機の掃除の際にメインで用いるもので、連通管21と同軸上、すなわち本体吸込口11の中心軸上に沿って、連通管21に対して直線状に接続されている。また、この主集塵室22内には、主フィルタとしての集塵袋である紙パック31が着脱可能に設けられている。   The main dust collection chamber 22 is used mainly when cleaning the electric vacuum cleaner, and is coaxial with the communication pipe 21, that is, along the central axis of the main body suction port 11, and linear with respect to the communication pipe 21. It is connected. In the main dust collection chamber 22, a paper pack 31 as a dust collection bag as a main filter is detachably provided.

紙パック31は、吸込風に含まれる塵埃のうち比較的重量が大きい粗塵D1を収容するとともに、吸込風を通過させてこの吸込風に含まれる塵埃を捕集する濾過分離体であり、主集塵室22に固定される口枠33と、この口枠33に取り付けられた袋体34とを有している。   The paper pack 31 is a filter separator that contains coarse dust D1 that is relatively heavy among the dust contained in the suction air and that collects the dust contained in the suction air through the suction air. A mouth frame 33 fixed to the dust collection chamber 22 and a bag body 34 attached to the mouth frame 33 are provided.

口枠33は、厚紙などにより形成され、連通管21の下流端が挿入される開口36が略中央部に穿設されている。   The mouth frame 33 is formed of cardboard or the like, and an opening 36 into which the downstream end of the communication pipe 21 is inserted is formed at a substantially central portion.

袋体34は、図示しない複数層の通気性素材を積層して袋状に形成され、未使用状態で折り畳まれ、使用により主集塵室22内全体に膨らむように構成されている。また、この袋体34は、開口側が口枠33の開口36の周縁部に取り付けられることで口枠33と一体的となっている。さらに、この袋体34は、メッシュフィルタ29以上の目の細かさを有している。   The bag body 34 is formed in a bag shape by laminating a plurality of layers of air permeable materials (not shown), and is folded in an unused state and configured to swell throughout the main dust collecting chamber 22 when used. Further, the bag body 34 is integrated with the mouth frame 33 by attaching the opening side to the peripheral edge portion of the opening 36 of the mouth frame 33. Further, the bag 34 has a fineness of the mesh filter 29 or more.

そして、主集塵室22は、下流端に連通開口38が開口形成されて吸込風路25に連通しており、連通管21および吸込風路25とともに、本体吸込口11から電動送風機5の吸込側に連通する直線状の第1風路39を区画している。なお、連通開口38には、ウレタンフィルタ程度のフィルタを設けてもよい。   The main dust collection chamber 22 has a communication opening 38 formed at the downstream end thereof and communicates with the suction air passage 25, and the suction of the electric blower 5 from the main body suction port 11 together with the communication pipe 21 and the suction air passage 25. A straight first air passage 39 communicating with the side is defined. The communication opening 38 may be provided with a filter that is about the same as a urethane filter.

一方、分岐管23は、例えば主集塵室22の外壁部に沿って区画されており、上流端が連通管21の分岐開口27にメッシュフィルタ29を介して接続され、下流端の下流開口41が吸込風路25に連通している。このため、この分岐管23は、連通管21および吸込風路25とともに、紙パック31の上流側で第1風路39から側方に向けて分岐され吸込風路25で第1風路39に合流する第2風路42を区画している。したがって、この第2風路42は、連通管21と分岐管23とにより、本体吸込口11から吸い込まれた塵埃を連通管21の直進方向と径方向とに慣性分離する慣性分離部を構成している。そして、この分岐管23の下流開口41には、紙パック31以上の目の細かさを有する補助フィルタとしてのプリーツフィルタ43が設けられている。   On the other hand, the branch pipe 23 is partitioned along the outer wall portion of the main dust collecting chamber 22, for example, and has an upstream end connected to the branch opening 27 of the communication pipe 21 via the mesh filter 29, and a downstream opening 41 at the downstream end. Communicates with the suction air passage 25. For this reason, the branch pipe 23, together with the communication pipe 21 and the suction air passage 25, is branched from the first air passage 39 to the side on the upstream side of the paper pack 31, and is branched to the first air passage 39 by the suction air passage 25. A second air passage 42 that merges is defined. Accordingly, the second air passage 42 constitutes an inertia separation portion that separates the dust sucked from the main body suction port 11 into the straight direction and the radial direction of the communication pipe 21 by the communication pipe 21 and the branch pipe 23. ing. The downstream opening 41 of the branch pipe 23 is provided with a pleated filter 43 as an auxiliary filter having a finer mesh than the paper pack 31.

プリーツフィルタ43は、通過する吸込風に含まれる微細な塵埃である細塵D2を付着させて捕集するもので、上下方向に沿うプリーツ形状が掃除機本体1の左右方向全体に亘って形成されている。また、このプリーツフィルタ43の下流側には、このプリーツフィルタ43に付着した塵埃を除去する塵落とし体である除塵手段45が取り付けられている。   The pleated filter 43 collects fine dust D2, which is fine dust contained in the suction air passing therethrough, and is formed so that a pleated shape along the vertical direction extends over the entire horizontal direction of the cleaner body 1. ing. Further, on the downstream side of the pleated filter 43, dust removing means 45, which is a dust drop body for removing dust attached to the pleated filter 43, is attached.

この除塵手段45は、プリーツフィルタ43の下流側のプリーツ部に先端部が嵌合した状態で掃除機本体1の左右方向(図1の上下方向)に移動可能に設けられ、この移動により、先端部がプリーツ部の山部を繰り返し乗り越えることで、プリーツフィルタ43に振動を与えて、このプリーツフィルタ43に付着した塵埃を落とすものである。   The dust removing means 45 is provided so as to be movable in the left-right direction (vertical direction in FIG. 1) of the cleaner body 1 with the tip portion fitted to the pleat portion on the downstream side of the pleat filter 43. As the portion repeatedly climbs over the peak portion of the pleated portion, vibration is applied to the pleated filter 43 and dust attached to the pleated filter 43 is dropped.

なお、この除塵手段45は、例えば電動送風機5のオンオフ時などの任意のタイミングで、制御手段9などにより自動的に動作されるように構成したり、作業者が手動で動作させたりすることが可能である。   The dust removing means 45 may be configured to be automatically operated by the control means 9 or the like at an arbitrary timing such as when the electric blower 5 is turned on or off, or may be manually operated by an operator. Is possible.

また、吸込風路25は、主集塵室22(第1風路39)の下流側と分岐管23(第2風路42)の下流側とが合流する部分である。したがって、紙パック31およびプリーツフィルタ43は、第1風路39と第2風路42との合流位置よりも上流側に位置している。   The suction air passage 25 is a portion where the downstream side of the main dust collecting chamber 22 (first air passage 39) and the downstream side of the branch pipe 23 (second air passage 42) merge. Therefore, the paper pack 31 and the pleat filter 43 are located upstream from the joining position of the first air passage 39 and the second air passage 42.

次に、上記一実施の形態の動作を説明する。   Next, the operation of the above embodiment will be described.

まず、本体吸込口11にホース体12、延長管16および床ブラシ17を順次連通接続するとともに、本体ケース4の蓋体3を開けて集塵ユニット7を装着し、蓋体3を閉じる。   First, the hose body 12, the extension pipe 16 and the floor brush 17 are sequentially connected to the main body suction port 11, the lid body 3 of the main body case 4 is opened, the dust collecting unit 7 is attached, and the lid body 3 is closed.

そして、本体ケース4から電源コードを引き出して壁面などのコンセントに接続し、作業者が把持部14を把持して所定の設定ボタン15を操作すると、制御手段9が電動送風機5を駆動させる。   Then, the power cord is pulled out from the main body case 4 and connected to an outlet such as a wall surface. When the operator grips the grip portion 14 and operates a predetermined setting button 15, the control means 9 drives the electric blower 5.

この結果、電動送風機5の駆動により、負圧が床ブラシ17、延長管16、ホース体12、本体吸込口11および第1風路39と作用する主風路W1と、負圧が床ブラシ17、延長管16、ホース体12、本体吸込口11および第2風路42と作用する副風路W2とが形成され、吸込風となる空気とともに塵埃が吸い込まれる。   As a result, when the electric blower 5 is driven, the negative pressure is applied to the floor brush 17, the extension pipe 16, the hose body 12, the main body suction port 11 and the first air passage 39, and the negative pressure is applied to the floor brush 17. The extension pipe 16, the hose body 12, the main body suction port 11, and the second air passage 42 and the auxiliary air passage W2 are formed, and dust is sucked together with the air that serves as the suction air.

このとき、図1に示すように、紙パック31の袋体34内に粗塵D1があまり溜まっていない状態では、吸込風の大部分が第1風路39を介して主風路W1を通過し、吸込風の残りが第2風路42を介して副風路W2を通過する。   At this time, as shown in FIG. 1, in the state where the coarse dust D1 is not accumulated in the bag body 34 of the paper pack 31, most of the suction air passes through the main air passage W1 via the first air passage 39. Then, the remainder of the suction air passes through the secondary air passage W2 via the second air passage 42.

吸込風に含まれる塵埃のうち、比較的重量が大きい粗塵D1は、主風路W1を通過する吸込風に沿って連通管21を直進し、主集塵室22の紙パック31の袋体34内に収容される。なお、紙パック31の袋体34内に捕集された粗塵D1は、主風路W1を通過する吸込風により圧縮される。   Of the dust contained in the suction air, the relatively heavy coarse dust D1 travels straight through the communication pipe 21 along the suction air passing through the main air passage W1, and the bag of the paper pack 31 in the main dust collection chamber 22 Housed in 34. The coarse dust D1 collected in the bag body 34 of the paper pack 31 is compressed by the suction air passing through the main air passage W1.

また、吸込風に含まれる塵埃のうち、比較的重量が小さい細塵D2は、分岐開口27にて副風路W2へと分岐する吸込風に沿ってメッシュフィルタ29を通過し、さらに分岐管23内を進んでプリーツフィルタ43に捕集される。   Further, among the dust contained in the suction air, the fine dust D2 having a relatively small weight passes through the mesh filter 29 along the suction air that branches into the auxiliary air passage W2 at the branch opening 27, and further, the branch pipe 23 It goes inside and is collected by the pleat filter 43.

紙パック31を通過した主風路W1側の吸込風とプリーツフィルタ43を通過した副風路W2側の吸込風とは、それぞれ吸込風路25で合流し、電動送風機5へと吸い込まれ、この電動送風機5を通過して排気風となり、図示しない排気孔から掃除機本体1の外部へと排気される。   The suction air on the main air passage W1 side that has passed through the paper pack 31 and the suction air on the sub air passage W2 side that has passed through the pleat filter 43 are merged in the suction air passage 25 and sucked into the electric blower 5. It passes through the electric blower 5 to become exhaust air, and is exhausted from the exhaust hole (not shown) to the outside of the cleaner body 1.

さらに、紙パック31の袋体34内に粗塵D1が次第に溜まってくると、第1風路39の風路抵抗が次第に大きくなることで、図2に示すように、第1風路39を通過する吸込風の風量が相対的に低下する。   Furthermore, as the coarse dust D1 gradually accumulates in the bag 34 of the paper pack 31, the air path resistance of the first air path 39 gradually increases, and as shown in FIG. The air volume of the suction air passing through is relatively reduced.

このとき、第2風路42を通過する吸込風の風量が相対的に増加することで、両風路39,42を通過する吸込風の総量は、殆ど変化しない。   At this time, since the air volume of the suction air passing through the second air path 42 is relatively increased, the total amount of the suction air passing through both the air paths 39 and 42 hardly changes.

次いで、掃除を終了する際に、作業者が設定ボタン15を操作すると、制御手段9は、除塵手段45を例えば所定時間動作させてプリーツフィルタ43にて捕集した細塵D2を落とし、所定時間が経過すると、電動送風機5を停止させて、電気掃除機の運転を停止する。   Next, when the operator finishes cleaning, when the operator operates the setting button 15, the control means 9 operates the dust removing means 45 for a predetermined time, for example, to drop the fine dust D2 collected by the pleat filter 43, and for a predetermined time. When elapses, the electric blower 5 is stopped and the operation of the vacuum cleaner is stopped.

なお、電動送風機5は、除塵手段45による除塵の前に停止させてもよい。   The electric blower 5 may be stopped before dust removal by the dust removing means 45.

紙パック31に所定量以上の塵埃が溜まった場合には、蓋体3を開けて紙パック31を主集塵室22から取り外して塵埃とともに廃棄し、新たな紙パック31を主集塵室22に装着する。   When dust of a predetermined amount or more accumulates in the paper pack 31, the lid 3 is opened, the paper pack 31 is removed from the main dust collection chamber 22 and discarded together with the dust, and a new paper pack 31 is disposed in the main dust collection chamber 22. Attach to.

上述したように、上記一実施の形態では、第1風路39の第2風路42との合流位置である吸込風路25よりも上流側に紙パック31を設け、この吸込風路25よりも上流側の第2風路42に補助的なプリーツフィルタ43を設ける構成とした。   As described above, in the above-described embodiment, the paper pack 31 is provided on the upstream side of the suction air passage 25 that is the joining position of the first air passage 39 and the second air passage 42. Also, an auxiliary pleat filter 43 is provided in the second air passage 42 on the upstream side.

このため、第1風路39にて紙パック31に捕集する塵埃量が増加して第1風路39の風路抵抗が大きくなると、吸込風とともに塵埃が第2風路42からプリーツフィルタ43へと分岐されるので、紙パック31の目詰まりの度合いに対応する吸込力の経時的な低下を抑制できる。   For this reason, when the amount of dust collected in the paper pack 31 in the first air passage 39 is increased and the air passage resistance of the first air passage 39 is increased, the dust from the second air passage 42 and the pleat filter 43 is sucked together with the suction air. Therefore, it is possible to suppress a temporal decrease in the suction force corresponding to the degree of clogging of the paper pack 31.

すなわち、従来の場合には、風路を複数に分岐しても、電動送風機5へと吸い込まれる際に最終的に通過するフィルタが1つであるため、このフィルタが目詰まりすると、吸込力が低下してしまうのに対して、本実施の形態では、第1風路39と第2風路42とを分岐して区画して、これら風路39,42の合流位置よりも上流側に紙パック31およびプリーツフィルタ43を設けることで、メインで用いる第1風路39の紙パック31が次第に目詰まりしても、吸込風は第2風路42側へとバイパスされるので、吸込風の総量の低下が抑制され、吸込力の経時的な低下を抑制できる。   That is, in the conventional case, even if the air passage is divided into a plurality of air passages, there is only one filter that finally passes when sucked into the electric blower 5, so if this filter is clogged, the suction force is reduced. In contrast to this, in the present embodiment, the first air passage 39 and the second air passage 42 are divided and divided, and the paper is located upstream of the merging position of the air passages 39 and 42. By providing the pack 31 and the pleat filter 43, even if the paper pack 31 of the first air passage 39 used in the main is gradually clogged, the suction air is bypassed to the second air passage 42 side. A decrease in the total amount is suppressed, and a decrease in suction force over time can be suppressed.

また、第1風路39を本体吸込口11から直線状に設け、第2風路42を第1風路39から側方に向けて分岐することで、紙パック31に溜まった塵埃が多くなり第1風路39を通過する吸込風の風量が低下しても、粗塵D1は慣性により連通管21を直進して開口36から紙パック31内へと捕集されるので、集塵効率の低下を防止できる。   Further, the first air passage 39 is provided in a straight line from the main body suction port 11 and the second air passage 42 is branched from the first air passage 39 to the side, so that dust accumulated in the paper pack 31 increases. Even if the air volume of the suction air passing through the first air passage 39 is reduced, the coarse dust D1 travels straight through the communication pipe 21 due to inertia and is collected from the opening 36 into the paper pack 31. Decline can be prevented.

さらに、第1風路39と第2風路42との分岐部に、紙パック31の袋体34以上に目が粗いメッシュフィルタ29を設けることで、粗塵D1が第2風路42側に吸い込まれることをメッシュフィルタ29で防止し、塵埃を確実に慣性分離できる。   Further, by providing a mesh filter 29 having a coarser mesh than the bag body 34 of the paper pack 31 at the branch portion between the first air passage 39 and the second air passage 42, the coarse dust D1 is moved to the second air passage 42 side. Inhalation is prevented by the mesh filter 29, and dust can be reliably inertially separated.

そして、主フィルタとして、第1風路39を構成する主集塵室22に対して着脱自在の紙パック31を用いることで、粗塵D1がいっぱいに溜まった場合には紙パック31を廃棄して新たな紙パック31を主集塵室22に取り付けることにより、第1風路39を通過する吸込風の風量を維持できる。   Then, by using a paper pack 31 that is detachable with respect to the main dust collection chamber 22 constituting the first air passage 39 as the main filter, the paper pack 31 is discarded when the coarse dust D1 is fully accumulated. By attaching a new paper pack 31 to the main dust collection chamber 22, the air volume of the suction air passing through the first air passage 39 can be maintained.

また、プリーツフィルタ43で捕集した細塵D2は除塵手段45により除去されるので、プリーツフィルタ43の目詰まりを抑制できる。   Further, since the fine dust D2 collected by the pleated filter 43 is removed by the dust removing means 45, clogging of the pleated filter 43 can be suppressed.

さらに、主風路W1と副風路W2との風量は、紙パック31の目詰まりに対応して自動的に分配されるため、作業者が特に意識せずとも通常の掃除動作をするだけで容易に吸込力を維持でき、紙パック31の交換の頻度なども低下して、使い勝手が良好になる。   In addition, the air volume in the main air passage W1 and the sub air passage W2 is automatically distributed in response to the clogging of the paper pack 31, so that only the normal cleaning operation is performed without the operator being particularly conscious. The suction force can be easily maintained, and the frequency of replacement of the paper pack 31 is reduced, and the usability is improved.

なお、上記一実施の形態において、除塵手段45は、電気掃除機の構成を簡略化するために設けない構成とすることも可能である。   In the above embodiment, the dust removing means 45 may be configured not to be provided in order to simplify the configuration of the electric vacuum cleaner.

また、主フィルタとしては、紙パック31以外の任意の濾過分離体を用いることができる。   As the main filter, any filter separator other than the paper pack 31 can be used.

さらに、分岐フィルタは、メッシュフィルタ29以外でも、例えば連通管21の周面に複数の小孔を穿設するなど、任意の構成にできる。   Further, the branch filter can be of any configuration other than the mesh filter 29, for example, a plurality of small holes are formed in the peripheral surface of the communication pipe 21.

そして、第2風路42は、複数設けてもよい。   A plurality of second air passages 42 may be provided.

また、電気掃除機の細部は、上記構成に限定されるものではなく、電気掃除機としては、キャニスタ型に限らず、例えば自走式(走行補助式)や自律走行式(ロボット式)の電気掃除機などでもよく、また、例えば床ブラシ17が掃除機本体1の下面に直接形成されたアップライト型、あるいはハンディ型などであっても対応させて用いることができる。   The details of the vacuum cleaner are not limited to the above configuration, and the vacuum cleaner is not limited to the canister type, for example, self-propelled (running assist type) or autonomous running type (robot type) electric For example, a vacuum cleaner or the like may be used. For example, the floor brush 17 may be an upright type or a handy type directly formed on the lower surface of the vacuum cleaner body 1.

本発明の一実施の形態の電気掃除機を示す説明平面図である。It is an explanatory top view showing a vacuum cleaner of an embodiment of the present invention. 同上電気掃除機の集塵部の主フィルタに塵埃が捕集された状態を示す説明平面図である。It is an explanatory top view which shows the state by which dust was collected by the main filter of the dust collection part of a vacuum cleaner same as the above. 同上電気掃除機を示す斜視図である。It is a perspective view which shows a vacuum cleaner same as the above.

符号の説明Explanation of symbols

1 掃除機本体
5 電動送風機
7 集塵部としての集塵ユニット
11 本体吸込口
21 連通管
29 分岐フィルタとしてのメッシュフィルタ
31 主フィルタとしての集塵袋である紙パック
39 第1風路
42 第2風路
43 補助フィルタとしてのプリーツフィルタ
1 Vacuum Cleaner Body 5 Electric Blower 7 Dust Collection Unit as Dust Collection Unit
11 Main unit inlet
21 communication pipes
29 Mesh filter as branch filter
31 Paper pack as a dust bag as the main filter
39 First airway
42 Second wind path
43 Pleated filter as auxiliary filter

Claims (3)

電動送風機を収容した掃除機本体と、
この掃除機本体に設けられた集塵部と、
記掃除機本体に設けられた本体吸込口と
この本体吸込口の開口方向に沿ってこの本体吸込口の下流側と前記集塵部の上流側とを連通する直線状の連通管とを具備し、
前記集塵部は、
前記連通管に沿って前記電動送風機の吸込側に連通する第1風路と、
前記電動送風機の駆動により前記本体吸込口を介して吸い込んだ空気に含まれる塵埃を慣性分離するように前記連通管の側部にて前記第1風路から分岐され、前記第1風路と合流して前記電動送風機の吸込側に連通する第2風路と、
前記第1風路の前記第2風路との合流位置よりも上流側に設けられ、塵埃を捕集する主フィルタと、
前記第2風路の前記合流位置よりも上流側に設けられ、塵埃を捕集する補助フィルタとを備えている
ことを特徴とした電気掃除機
A vacuum cleaner body containing an electric blower,
A dust collector provided in the vacuum cleaner body;
And the main body suction port provided before Symbol cleaner body,
A linear communication pipe that communicates the downstream side of the main body suction port and the upstream side of the dust collecting portion along the opening direction of the main body suction port ,
The dust collecting part is
A first air passage communicating with the suction side of the electric blower along the communication pipe ;
Branching from the first air path at the side of the communication pipe so as to inertially separate dust contained in the air sucked through the main body suction port by driving the electric blower, and merges with the first air path And a second air passage communicating with the suction side of the electric blower,
A main filter provided on the upstream side of the merging position of the first air passage with the second air passage, and collecting dust;
An electric vacuum cleaner comprising: an auxiliary filter that is provided upstream of the merging position of the second air passage and collects dust .
連通管の側部の第1風路と第2風路との分岐部に設けられ、主フィルタ以上に目が粗い分岐フィルタを具備した
ことを特徴とした請求項記載の電気掃除機。
Provided in the branch portion between the first air passage and the second air passage side of the communication pipe, the vacuum cleaner according to claim 1 wherein characterized in that the eye than the main filter is provided with a coarse drop filter.
主フィルタは、第1風路内に着脱自在に設けられた集塵袋である
ことを特徴とした請求項1または2記載の電気掃除機。
The vacuum cleaner according to claim 1 or 2 , wherein the main filter is a dust collection bag detachably provided in the first air passage.
JP2007008666A 2007-01-18 2007-01-18 Electric vacuum cleaner Expired - Fee Related JP5049602B2 (en)

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