JP3674031B2 - Vacuum cleaner - Google Patents

Vacuum cleaner Download PDF

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Publication number
JP3674031B2
JP3674031B2 JP2001185125A JP2001185125A JP3674031B2 JP 3674031 B2 JP3674031 B2 JP 3674031B2 JP 2001185125 A JP2001185125 A JP 2001185125A JP 2001185125 A JP2001185125 A JP 2001185125A JP 3674031 B2 JP3674031 B2 JP 3674031B2
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Japan
Prior art keywords
dust
dust collecting
filter
vacuum cleaner
wall
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JP2001185125A
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Japanese (ja)
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JP2003000497A5 (en
JP2003000497A (en
Inventor
要 丸山
利明 小川
修一 谷口
峰幸 井上
岳 山田
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Twinbird Corp
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Twinbird Corp
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Priority to JP2001185125A priority Critical patent/JP3674031B2/en
Priority to US10/173,014 priority patent/US20020189048A1/en
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Publication of JP2003000497A5 publication Critical patent/JP2003000497A5/ja
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1658—Construction of outlets
    • A47L9/1666—Construction of outlets with filtering means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/24—Hand-supported suction cleaners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/165—Construction of inlets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Electric Suction Cleaners (AREA)

Description

【０００１】
【発明が属する技術分野】
本発明は電気掃除機に関するものであり、特に、着脱自在の容器内に収集した塵埃を溜めるようにする電気掃除機に関するものである。
【０００２】
【発明が解決しようとする課題】
従来この種の電気掃除機としては、例えば特開平５−２５３０９６号公報等に記載されているようなものが知られている。これは、手持ち式の電気掃除機であり、ファンモータ（ファン及び電動機）の前方に集塵ケース（集塵部）及びフィルタを設け、ファンモータによって吸引された空気に含まれる塵埃をフィルタによって濾過し、集塵ケースに溜めるものである。また、同様の原理で集塵する比較的大型の電気掃除機も特開平５−１５４０７５号公報等で知られている。
【０００３】
しかしながら、これらの電気掃除機においては、ファンモータと集塵ケースが前後、或いは上下に配列されているため、掃除機全体が大型化してしまうという問題があった。そして、この掃除機の大型化を避けようとした場合、集塵ケースを小型化すれば比較的掃除機を小型化できるが、塵埃の収容量が少なくなってしまうため、実用性が犠牲になってしまうという虞があった。また、前者の電気掃除機においては、フィルタが塵埃で目詰まりしてしまいやすいという問題があり、この目詰まりを防ぐために、後者の電気掃除機のように、フィルタに付着した塵埃を落とすための機構を設けることも考えられるが、このような機構を設けた場合、製品のコストアップを招くという問題があった。
【０００４】
本発明は以上の問題点を解決し、比較的小型に構成できると共に、目詰まりを起こしにくい電気掃除機を提供することを目的とする。
【０００５】
【課題を解決するための手段】
本発明の請求項１の電気掃除機は、掃除機本体と、この掃除機本体内のほぼ中央に形成され上面に通気口を形成する筒状のホルダに収容された電動機と、この電動機の回転軸に取り付けられて駆動されるファンと、このファンによって吸引された空気に含まれる塵埃を濾過し逆カップ状に形成されたフィルタケースの周壁部に取り付けられているフィルタと、このフィルタによって濾過された塵埃を溜める円筒状に形成された内側環状壁と外側環状壁及びこれら内・外側環状壁を一体化する底壁面とを有し、これら内・外側環状壁と底壁面で囲まれた環状の集塵部を形成する集塵容器と、前記掃除機本体に回動自在に取り付けられた蓋部とを有し、前記集塵部の内周側の全周に渡って前記フィルタを形成し、前記集塵部の周方向に気流が流れるようにするための渦流形成手段を設け、前記蓋部に前記フィルタケースの上面に設けられた位置決め部と嵌合する位置決め凹部が形成されているものである。
【０００６】
請求項１の構成とすることにより、電動機及びファンの外周を囲むように環状の集塵部が配置され、フィルタによって濾過された塵埃が集塵部に溜められると共に、塵埃が除かれた空気が集塵部で囲まれたファンによって吸引されて外部に放出される。また、ファンの回転によって形成された気流に含まれる塵埃が、集塵部内周の全周に広く形成されたフィルタの全域に渡って濾過されると共に、塵埃の除かれた空気が集塵部内周のフィルタを通過して短い経路でファンに至る。また、集塵部内に吸引された塵埃を含む空気が、渦流形成手段によって集塵部外周に沿って回転することで、遠心力によって大きな塵埃が集塵部の外周側内壁に押し付けられて塵埃の一部が気流から除かれ、更に集塵部内周に設けられたフィルタによって塵埃が除かれる。
【０００７】
また、本発明の請求項２の電気掃除機は、請求項１において、前記フィルタケースは、前記内側環状壁の下端周縁に形成された段部によって、前記内側環状壁と僅かな隙間を保って着脱自在に装着されているものである。
【０００８】
請求項２の構成により、フィルタケースは、内側環状壁と僅かな隙間を保って装着される。
【０００９】
【発明の実施形態】
以下、本発明の実施形態について、図１乃至図３に基づいて説明する。同図において、１は卓上型の掃除機本体である。この掃除機本体１の内部には、電動機２と、この電動機２の回転軸に取り付けられたファン３が設けられており、これら電動機２及びファン３とで送風機４が構成されている。また、掃除機本体１のほぼ中央には電動機２を収納する筒状のホルダ５が形成されている。このホルダ５の底壁部７にはホルダ５の内壁と間隔をおいて立設する左右一対の側壁部６が一体形成され、このホルダ５と左右の側壁部６及び底壁部７によって後述する集塵容器11の取付部８を構成している。前記電動機２は、前記ファン３がホルダ５の上面に形成する通気口５Ａに臨んで前記掃除機本体１の底面部１Ａに固定される。また、ホルダ５と前記側壁部６との間に形成する凹部10には、集塵容器11と、フィルタ12がそれぞれ組み付けられている。前記集塵容器11は前記凹部10と嵌合するように、それぞれが円筒状に形成された内側環状壁13と外側環状壁14及びこれら内・外側環状壁13，14を一体化する底壁面15とから成り、これら内・外側環状壁13，14と底壁面15で囲まれた環状の集塵部16を形成している。また、フィルタ12は、前記集塵容器11の内側環状壁13にほぼ沿うように、逆カップ状に形成されたフィルタケース17の周壁部に形成する開口部18に取り付けられている。なお、フィルタケース17は、内側環状壁13の下端周縁に形成する段部13Ａによって該内側環状壁13と僅かな隙間Ｓを保って着脱自在に装着されている。また、前記内側環状壁13の上面には前記ホルダ５の上面に形成する通気口５Ａを覆う有底筒状の径小段部20が形成され、この径小段部20の周面に連通孔21が開口している。また、前記フィルタケース17の上面には前記径小段部20の上面部に形成する環状リブ23と嵌合する位置決め部24が形成され、さらに、前記掃除機本体１にヒンジ25により回動自在に取り付けられた蓋部26には前記位置決め部24と嵌合する位置決め凹部27が形成されている。また、前記蓋部26には把持部26Ａが一体形成され、把持部26Ａを持って蓋部26を開いた状態ではフィルタケース17と集塵容器11が掃除機本体１から取り外し可能となり、蓋部26を閉じた状態では蓋部26に形成する位置決め凹部27と前記底壁部７とでフィルタケース17及び集塵容器11を挟み付けてこれらフィルタケース17及び集塵容器11が固定される。この時、フィルタケース17と集塵容器11は、フィルタケース17の位置決め部24が集塵容器11の環状リブ23と嵌合し、さらに、その位置決め部24が蓋部26の位置決め凹部27と嵌合して位置決め固定される。また、前記掃除機本体１内には、蓄電池30を収容する電池収納部31が区画形成されるとともに、前記掃除機本体１の先端側には、内部に吸引管32を設けた突出部33が一体的に設けられている。前記吸引管32の下端には、吸込口34ａを設けた吸込部34が着脱自在に取り付けられている。また、前記吸引管32の上端には横方向に屈曲した屈曲部35が形成され、この屈曲部35を前記集塵容器11の内・外側環状壁13，14の間、すなわち、集塵部16の内部で開口させている。この吸引管32の上端縁に形成する屈曲部35によって集塵部16の周方向に流れる気流Ｆを発生させる渦流形成手段を構成している。このように吸引管32を集塵部16の内部に開口させることにより、吸込口34ａから吸引管32を経て集塵容器11に至る通風路40が形成される。更に、この通風路40と連通するように、集塵容器11に装着するフィルタ12を経て集塵容器11の径小段部20の周面に形成する連通孔21とホルダ５の上面に形成する通気口５Ａを経てホルダ５の内面に吸気路41が形成され、これら通風路40と吸気路41を通って吸込口34ａから吸い込んだ空気を掃除機本体１に形成する図示しない排気口から外部に排出する。なお、図中45は把持部26Ａに形成するスイッチ、46は蓋部26のロック及びロック解除する操作釦、47は掃除機本体１と蓋部26の間に介在するパッキンである。更に、48は前記操作釦46と一体形成され、掃除機本体１に形成された係止爪48Ａと係合するフックである。
【００１０】
次に、本実施形態の作用について説明する。まず、操作釦46を操作して蓋部26を開き、掃除機本体１に形成する取付部８に集塵容器11をセットし、さらに、その集塵容器11の内側環状壁13に被せるようにしてフィルタケース17を装着する。この時、フィルタケース17の下端を内側環状壁13の下端周縁に形成する段部13Ａと嵌合させることによって、フィルタケース17に装着されたフィルタ12が内側環状壁13と僅かな隙間Ｓを保って集塵容器11に装着されている。こうして取付部８に集塵容器11とフィルタケース17をセットした後、蓋部26を閉じると、蓋部26は操作釦46と一体に形成されたフック48が掃除機本体１に形成された係止爪48Ａに係止してロックされる。これとともに、取付部８にセットした集塵容器11とフィルタケース17は、蓋部26と取付部８の間に挟着されるとともに、フィルタケース17の位置決め部24が集塵容器11の環状リブ23と嵌合し、さらに、その位置決め部24が蓋部26の位置決め凹部27と嵌合して集塵容器11とフィルタケース17が掃除機本体１にぐらつかずに保持される。そして、把持部26Ａを握ってスイッチ45を操作することによって送風機４が駆動する。
【００１１】
送風機４の駆動により、塵埃を含んだ空気が前記吸込口34ａから吸引され、通風路40から吸気路41に至り、掃除機本体１に形成する図示しない排気口から外部に排出される。この時、集塵容器11の集塵部16に臨む吸引管32の上端に屈曲部35が形成されているため、集塵部16内の空気は、屈曲部35に導かれて、集塵容器11の内・外側環状壁13，14に沿って渦流となる。この渦流により、渦流に含まれる塵埃は、遠心力によって集塵容器11の外側環状壁14の内壁に押し付けられるので、比較的重い塵埃はそのまま集塵容器11の外側環状壁14の内周面付近に留まることになり、渦流から分離される。一方、綿埃等の比較的軽い塵埃や細かい塵埃などは、渦流と共に吸気路41側に吸引され、フィルタ12によって捕集される。
【００１２】
清掃終了後、操作釦46を操作してフック48と係止爪48Ａとのロックを解除して蓋部26を開いた後、フィルタケース17と集塵容器11を取り外す。そして、集塵部16に溜まった塵埃をゴミ箱に捨て、また、フィルタ12に付着した塵埃を除去する。このように、フィルタケース17が集塵容器11に対して着脱自在であることによって、フィルタ12のメンテナンスを容易にできる。
【００１３】
以上のように本実施例においては、集塵部16を環状に形成すると共に、前記電動機２及びファン３の外周を囲むように環状の集塵部16を配したことによって、フィルタ12によって濾過された塵埃が集塵部16に溜められると共に、塵埃が除かれた空気が集塵部16で囲まれたファン３によって吸引されて外部に放出される。このように、集塵部16を環状に形成することで塵埃を効率的に収容することができ、塵埃の収容量も多い。また、集塵部16の内周側にフィルタ12を設けたことにより、ファン３の回転によって吸引される塵埃が集塵部16内周側に設けられたフィルタ12によって濾過されると共に、塵埃の除かれた空気が集塵部16内周のフィルタ12を通過して短い経路でファン３に至るから、電動機２及びファン３の周囲に集塵部16をコンパクトに配置することができ、掃除機１の小型化が可能となる。さらに、前記集塵部16の内周側の全周に渡ってフィルタ12を形成したものであるから、ファン３の回転によって形成された気流Ｆに含まれる塵埃が、集塵部16内周の全周に広く形成されたフィルタ３の全域に渡って濾過され、塵埃を確実に捕集することができる。また、集塵容器11の集塵部16に臨む吸引管32の上端に屈曲部35を形成することにより、前記集塵部16の周方向に流れる気流Ｆが発生する。これにより、集塵部16内に吸引された塵埃を含む空気が集塵部16外周に沿って回転し、遠心力によって大きな塵埃が集塵部16の外周側内壁に押し付けられて塵埃の一部が気流Ｆから除かれて分離するとともに、細かな塵埃は吸引され、細かな塵埃のみが集塵部16内周に設けられたフィルタ12によって濾過されるから、フィルタ12の目詰まりを防止することができる。このように、単に吸引管32の上端に屈曲部35を形成することにより、集塵部16の周方向に流れる気流Ｆを発生させ、目詰まりを防ぐことができるために、フィルタ12に付着した塵埃を落とすための複雑な機構も不要であり、製品のコストアップを招くという虞もない。
【００１４】
以上、本発明の実施例について詳述したが、本発明は、前記実施例に限定されるものではなく、本発明の要旨の範囲内で種々の変形実施が可能である。例えば、渦流形成手段としての屈曲部35の形状やフィルタ12の取付構造といった掃除機としての基本的構造は適宜選定すればよい。また、前記実施例では、いわゆる卓上型の掃除機を示したが、これ以外の構造でもよい。
【００１５】
【発明の効果】
本発明の請求項１の電気掃除機は、掃除機本体と、この掃除機本体内のほぼ中央に形成され上面に通気口を形成する筒状のホルダに収容された電動機と、この電動機の回転軸に取り付けられて駆動されるファンと、このファンによって吸引された空気に含まれる塵埃を濾過し逆カップ状に形成されたフィルタケースの周壁部に取り付けられているフィルタと、このフィルタによって濾過された塵埃を溜める円筒状に形成された内側環状壁と外側環状壁及びこれら内・外側環状壁を一体化する底壁面とを有し、これら内・外側環状壁と底壁面で囲まれた環状の集塵部を形成する集塵容器と、前記掃除機本体に回動自在に取り付けられた蓋部とを有し、前記集塵部の内周側の全周に渡って前記フィルタを形成し、前記集塵部の周方向に気流が流れるようにするための渦流形成手段を設け、前記蓋部に前記フィルタケースの上面に設けられた位置決め部と嵌合する位置決め凹部が形成されているものであるから、電動機及びファンの外周を囲むように環状の集塵部をコンパクトに配置することができ、電気掃除機の小型化が可能となる。また、フィルタが目詰まりを起こしにく、またファンの回転によって形成された気流に含まれる塵埃が、集塵部内周の全周に広く形成されたフィルタの全域に渡って濾過させることができる。
【００１６】
また、本発明の請求項２の電気掃除機によれば、請求項１記載の電気掃除機において、前記フィルタケースは、前記内側環状壁の下端周縁に形成された段部によって、前記内側環状壁と僅かな隙間を保って着脱自在に装着されているものであるから、フィルタケースは、内側環状壁と僅かな隙間を保って装着される。
【図面の簡単な説明】
【図１】本発明の一実施形態を示す掃除機を正面方向から見た断面図である。
【図２】同上、掃除機を側面方向から見た断面図である。
【図３】同上、図２のＡ−Ａ線断面図である。
【符号の説明】
１ 掃除機本体
２ 電動機
３ ファン
４ 送風機
５ ホルダ
５Ａ 通気口
11 集塵容器
12 フィルタ
13 内側環状壁
13 Ａ 段部
14 外側環状壁
15 底壁面
16 集塵部
17 フィルタケース
24 位置決め部
26 蓋部
27 位置決め凹部
35 屈曲部（渦流形成手段）
Ｓ 隙間 [0001]
[Technical field to which the invention belongs]
The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner that collects collected dust in a detachable container.
[0002]
[Problems to be solved by the invention]
Conventionally, as this type of vacuum cleaner, for example, the one described in JP-A-5-253096 is known. This is a hand-held vacuum cleaner, and a dust collection case (dust collection part) and filter are provided in front of the fan motor (fan and motor), and dust contained in the air sucked by the fan motor is filtered by the filter. And collected in a dust collection case. A relatively large vacuum cleaner that collects dust based on the same principle is also known from Japanese Patent Laid-Open No. 5-1554075.
[0003]
However, in these vacuum cleaners, the fan motor and the dust collecting case are arranged in the front-rear or top-bottom direction, so that there is a problem that the entire vacuum cleaner is increased in size. And when trying to avoid the size of the vacuum cleaner, if the dust collection case is downsized, the vacuum cleaner can be made relatively small. However, since the amount of dust is reduced, practicality is sacrificed. There was a risk that it would end up. In addition, the former vacuum cleaner has a problem that the filter is likely to be clogged with dust, and in order to prevent this clogging, in order to prevent this clogging, it is necessary to remove dust attached to the filter. It is conceivable to provide a mechanism. However, when such a mechanism is provided, there is a problem that the cost of the product is increased.
[0004]
An object of the present invention is to solve the above-described problems and to provide a vacuum cleaner that can be configured relatively small and is less likely to be clogged.
[0005]
[Means for Solving the Problems]
A vacuum cleaner according to a first aspect of the present invention includes a vacuum cleaner body, an electric motor housed in a cylindrical holder that is formed substantially at the center of the vacuum cleaner body and forms a vent on the upper surface, and the rotation of the electric motor . A fan attached to the shaft and driven, a filter attached to a peripheral wall portion of a filter case formed in a reverse cup shape by filtering dust contained in air sucked by the fan, and filtered by the filter A cylindrical inner wall and an outer annular wall, and a bottom wall surface that integrates these inner and outer annular walls, and an inner ring wall surrounded by the inner and outer annular walls and the bottom wall surface. A dust collecting container that forms a dust collecting portion, and a lid that is rotatably attached to the cleaner body, and forms the filter over the entire circumference of the inner peripheral side of the dust collecting portion, Airflow flows in the circumferential direction of the dust collector The swirl means for so provided, in which positioning recess to be fitted to the positioning portion provided on the upper surface of the filter case to the lid portion.
[0006]
With the configuration according to claim 1, is disposed an annular dust collecting portion so as to surround the outer periphery of the motor and the fan, together with dust is filtered by the filter is collected in the dust collection unit, the dust is removed air It is sucked and discharged to the outside by a fan surrounded by the dust collecting part. In addition, dust contained in the airflow formed by the rotation of the fan is filtered over the entire area of the filter widely formed on the entire inner circumference of the dust collecting section, and the air from which the dust has been removed is Pass through the filter and reach the fan in a short path. In addition, air containing dust sucked into the dust collecting portion rotates along the outer periphery of the dust collecting portion by the vortex forming means, so that a large amount of dust is pressed against the inner peripheral wall of the dust collecting portion by centrifugal force. Part of the dust is removed from the airflow, and dust is removed by a filter provided on the inner periphery of the dust collecting portion.
[0007]
The vacuum cleaner according to claim 2 of the present invention is the vacuum cleaner according to claim 1, wherein the filter case maintains a slight gap with the inner annular wall by a step portion formed at a lower end periphery of the inner annular wall. It is detachably mounted .
[0008]
With the configuration of the second aspect, the filter case is mounted with a slight gap from the inner annular wall.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3. In the figure, reference numeral 1 denotes a desktop vacuum cleaner body. Inside the vacuum cleaner main body 1, an electric motor 2 and a fan 3 attached to a rotating shaft of the electric motor 2 are provided, and the electric motor 2 and the fan 3 constitute a blower 4. In addition, a cylindrical holder 5 that houses the electric motor 2 is formed in the approximate center of the cleaner body 1. The bottom wall 7 of the holder 5 is integrally formed with a pair of left and right side walls 6 erected at an interval from the inner wall of the holder 5. The holder 5, the left and right side walls 6 and the bottom wall 7 will be described later. A mounting portion 8 of the dust collecting container 11 is configured. The electric motor 2 is fixed to the bottom surface portion 1 </ b> A of the cleaner main body 1 facing the vent hole 5 </ b> A formed by the fan 3 on the upper surface of the holder 5. Further, a dust collecting container 11 and a filter 12 are assembled in a recess 10 formed between the holder 5 and the side wall 6. The dust collection container 11 is fitted into the recess 10 so that each of the inner annular wall 13 and the outer annular wall 14 are formed in a cylindrical shape, and a bottom wall surface 15 that integrates the inner and outer annular walls 13 and 14. An annular dust collecting portion 16 surrounded by the inner and outer annular walls 13 and 14 and the bottom wall surface 15 is formed. The filter 12 is attached to an opening 18 formed in the peripheral wall portion of the filter case 17 formed in an inverted cup shape so as to substantially follow the inner annular wall 13 of the dust collecting container 11. The filter case 17 is detachably attached to the inner annular wall 13 while maintaining a slight gap S by a step portion 13A formed at the lower edge of the inner annular wall 13. Further, a bottomed cylindrical small diameter step portion 20 is formed on the upper surface of the inner annular wall 13 to cover the vent hole 5A formed on the upper surface of the holder 5, and a communication hole 21 is formed on the peripheral surface of the small diameter step portion 20. It is open. In addition, a positioning portion 24 is formed on the upper surface of the filter case 17 to be fitted with an annular rib 23 formed on the upper surface portion of the small diameter step portion 20, and is further rotatable by a hinge 25 on the cleaner body 1. The attached lid portion 26 is formed with a positioning recess 27 that fits with the positioning portion 24. In addition, a grip portion 26A is integrally formed on the lid portion 26. When the lid portion 26 is opened with the grip portion 26A, the filter case 17 and the dust collecting container 11 can be detached from the cleaner body 1, and the lid portion In the closed state 26, the filter case 17 and the dust collection container 11 are sandwiched between the positioning recess 27 formed in the lid part 26 and the bottom wall part 7, and the filter case 17 and the dust collection container 11 are fixed. At this time, in the filter case 17 and the dust collecting container 11, the positioning part 24 of the filter case 17 is fitted with the annular rib 23 of the dust collecting container 11, and the positioning part 24 is fitted with the positioning recess 27 of the lid part 26. The positioning is fixed. In addition, a battery storage portion 31 for storing the storage battery 30 is defined in the cleaner body 1, and a protruding portion 33 having a suction pipe 32 is provided on the distal end side of the cleaner body 1. It is provided integrally. A suction part 34 provided with a suction port 34a is detachably attached to the lower end of the suction pipe 32. Further, a bent portion 35 bent in the lateral direction is formed at the upper end of the suction pipe 32, and this bent portion 35 is formed between the inner and outer annular walls 13, 14 of the dust collecting container 11, that is, the dust collecting portion 16. It is opened inside. The bent portion 35 formed at the upper end edge of the suction pipe 32 constitutes eddy current forming means for generating an air flow F flowing in the circumferential direction of the dust collecting portion 16. As described above, by opening the suction pipe 32 to the inside of the dust collecting portion 16, the ventilation path 40 extending from the suction port 34a through the suction pipe 32 to the dust collecting container 11 is formed. Further, the communication hole 21 formed in the peripheral surface of the small diameter step portion 20 of the dust collection container 11 and the ventilation formed in the upper surface of the holder 5 through the filter 12 attached to the dust collection container 11 so as to communicate with the ventilation path 40. An intake passage 41 is formed on the inner surface of the holder 5 through the opening 5A, and the air sucked from the suction port 34a through the ventilation passage 40 and the intake passage 41 is discharged to the outside from an exhaust port (not shown) formed in the cleaner body 1. To do. In the figure, 45 is a switch formed on the gripping portion 26A, 46 is an operation button for locking and unlocking the lid portion 26, and 47 is a packing interposed between the cleaner body 1 and the lid portion 26. Further, 48 is a hook that is integrally formed with the operation button 46 and engages with a locking claw 48A formed on the cleaner body 1.
[0010]
Next, the operation of this embodiment will be described. First, the operation button 46 is operated to open the lid portion 26, and the dust collecting container 11 is set on the mounting portion 8 formed in the cleaner body 1, and further, the dust collecting container 11 is covered with the inner annular wall 13 thereof. And attach the filter case 17. At this time, the filter 12 attached to the filter case 17 maintains a slight gap S with the inner annular wall 13 by fitting the lower end of the filter case 17 with a step portion 13A formed on the lower edge of the inner annular wall 13. Is attached to the dust collecting container 11. After the dust collecting container 11 and the filter case 17 are set in the mounting portion 8 in this way, when the lid portion 26 is closed, the lid portion 26 has a hook 48 formed integrally with the operation button 46 and formed on the cleaner body 1. Locked by locking to the pawl 48A. At the same time, the dust collection container 11 and the filter case 17 set in the attachment part 8 are sandwiched between the lid part 26 and the attachment part 8, and the positioning part 24 of the filter case 17 is an annular rib of the dust collection container 11. 23, and the positioning portion 24 is engaged with the positioning recess 27 of the lid portion 26, so that the dust collecting container 11 and the filter case 17 are held in the vacuum cleaner body 1 without shaking. The blower 4 is driven by operating the switch 45 while holding the grip portion 26A.
[0011]
By driving the blower 4, dust-containing air is sucked from the suction port 34 a, reaches the intake passage 41 from the ventilation passage 40, and is discharged to the outside from an exhaust port (not shown) formed in the cleaner body 1. At this time, since the bent portion 35 is formed at the upper end of the suction pipe 32 facing the dust collecting portion 16 of the dust collecting container 11, the air in the dust collecting portion 16 is guided to the bent portion 35, and the dust collecting container The vortex flows along the inner and outer annular walls 13 and 14 of 11. Due to this vortex, the dust contained in the vortex is pressed against the inner wall of the outer annular wall 14 of the dust collecting container 11 by centrifugal force, so that relatively heavy dust remains as it is near the inner peripheral surface of the outer annular wall 14 of the dust collecting container 11. Will be separated from the vortex. On the other hand, relatively light dust such as cotton dust or fine dust is sucked into the intake passage 41 together with the vortex and collected by the filter 12.
[0012]
After the cleaning is completed, the operation button 46 is operated to unlock the hook 48 and the locking claw 48A and open the lid 26, and then the filter case 17 and the dust collecting container 11 are removed. Then, the dust accumulated in the dust collecting unit 16 is thrown into the trash box, and the dust adhering to the filter 12 is removed. As described above, the filter case 17 is detachable from the dust collecting container 11, so that the maintenance of the filter 12 can be facilitated.
[0013]
As described above, in the present embodiment, the dust collecting portion 16 is formed in an annular shape, and the annular dust collecting portion 16 is disposed so as to surround the outer periphery of the electric motor 2 and the fan 3. The collected dust is collected in the dust collecting section 16, and the air from which the dust has been removed is sucked by the fan 3 surrounded by the dust collecting section 16 and released to the outside. As described above, the dust collecting portion 16 is formed in an annular shape, so that dust can be efficiently stored and the amount of dust is large. Further, by providing the filter 12 on the inner peripheral side of the dust collecting unit 16, dust sucked by the rotation of the fan 3 is filtered by the filter 12 provided on the inner peripheral side of the dust collecting unit 16, and Since the removed air passes through the filter 12 on the inner periphery of the dust collecting portion 16 and reaches the fan 3 through a short path, the dust collecting portion 16 can be disposed compactly around the electric motor 2 and the fan 3, and the vacuum cleaner 1 can be miniaturized. Furthermore, since the filter 12 is formed over the entire inner circumference side of the dust collecting portion 16, dust contained in the airflow F formed by the rotation of the fan 3 is absorbed in the inner circumference of the dust collecting portion 16. It is filtered over the entire area of the filter 3 that is widely formed on the entire circumference, and dust can be reliably collected. Further, by forming the bent portion 35 at the upper end of the suction pipe 32 facing the dust collecting portion 16 of the dust collecting container 11, an air flow F flowing in the circumferential direction of the dust collecting portion 16 is generated. As a result, the air containing the dust sucked into the dust collecting part 16 rotates along the outer periphery of the dust collecting part 16, and a large amount of dust is pressed against the inner wall on the outer peripheral side of the dust collecting part 16 by centrifugal force. Is removed from the air flow F, and fine dust is sucked in and only fine dust is filtered by the filter 12 provided in the inner periphery of the dust collecting portion 16, so that the filter 12 is prevented from being clogged. Can do. In this way, by simply forming the bent portion 35 at the upper end of the suction pipe 32, the air flow F flowing in the circumferential direction of the dust collecting portion 16 can be generated and clogging can be prevented. There is no need for a complicated mechanism for dropping dust, and there is no risk of increasing the cost of the product.
[0014]
As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, the basic structure as the vacuum cleaner, such as the shape of the bent portion 35 as the vortex forming means and the filter 12 mounting structure, may be selected as appropriate. Moreover, in the said Example, what was called a desktop type vacuum cleaner was shown, However, Other structures may be sufficient.
[0015]
【The invention's effect】
A vacuum cleaner according to a first aspect of the present invention includes a vacuum cleaner body, an electric motor housed in a cylindrical holder that is formed substantially at the center of the vacuum cleaner body and forms a vent on the upper surface, and the rotation of the electric motor . A fan attached to the shaft and driven, a filter attached to a peripheral wall portion of a filter case formed in a reverse cup shape by filtering dust contained in air sucked by the fan, and filtered by the filter A cylindrical inner wall and an outer annular wall, and a bottom wall surface that integrates these inner and outer annular walls, and an inner ring wall surrounded by the inner and outer annular walls and the bottom wall surface. A dust collecting container that forms a dust collecting portion, and a lid that is rotatably attached to the cleaner body, and forms the filter over the entire circumference of the inner peripheral side of the dust collecting portion, Airflow flows in the circumferential direction of the dust collector As the swirl means to provided, said because positioning recess to be fitted to the positioning portion provided on the upper surface of the filter case in which is formed on the lid, so as to surround the outer periphery of the motor and fan An annular dust collecting portion can be arranged in a compact manner, and the vacuum cleaner can be miniaturized. In addition, the filter is less likely to be clogged, and dust contained in the airflow formed by the rotation of the fan can be filtered over the entire area of the filter that is widely formed on the entire inner circumference of the dust collecting portion.
[0016]
According to the vacuum cleaner of claim 2 of the present invention, in the vacuum cleaner according to claim 1, the filter case is formed by the step formed at the lower edge of the inner annular wall. slight because those gaps while maintaining a are detachably attached with the filter casing is mounted while keeping a slight gap between the inner annular wall.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a vacuum cleaner as viewed from the front according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the vacuum cleaner as viewed from the side.
3 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
1 Vacuum Cleaner Body 2 Electric Motor 3 Fan 4 Blower
5 Holder
5A Vent
11 Dust collection container
12 Filter
13 inner ring wall
13 A Step
14 outer annular wall
15 bottom wall
16 Dust collector
17 Filter case
24 Positioning part
26 lid
27 Positioning recess
35 Bent part (vortex forming means)
S clearance

Claims (2)

掃除機本体と、
この掃除機本体内のほぼ中央に形成され上面に通気口を形成する筒状のホルダに収容された電動機と、
この電動機の回転軸に取り付けられて駆動されるファンと、
このファンによって吸引された空気に含まれる塵埃を濾過し逆カップ状に形成されたフィルタケースの周壁部に取り付けられているフィルタと、
このフィルタによって濾過された塵埃を溜める円筒状に形成された内側環状壁と外側環状壁及びこれら内・外側環状壁を一体化する底壁面とを有し、これら内・外側環状壁と底壁面で囲まれた環状の集塵部を形成する集塵容器と、
前記掃除機本体に回動自在に取り付けられた蓋部とを有し、
前記集塵部の内周側の全周に渡って前記フィルタを形成し、
前記集塵部の周方向に気流が流れるようにするための渦流形成手段を設け、
前記蓋部に前記フィルタケースの上面に設けられた位置決め部と嵌合する位置決め凹部が形成されていることを特徴とする電気掃除機。 The vacuum cleaner body ,
An electric motor housed in a cylindrical holder that is formed in the center of the vacuum cleaner body and forms a vent on the upper surface ;
A fan attached to the rotating shaft of the electric motor and driven;
A filter attached to a peripheral wall portion of a filter case formed by filtering the dust contained in the air sucked by the fan and formed in a reverse cup shape ;
A cylindrical inner wall and an outer annular wall for collecting dust filtered by the filter, and a bottom wall surface that integrates the inner and outer annular walls. The inner and outer annular walls and the bottom wall surface A dust collecting container that forms an enclosed annular dust collecting portion;
A lid portion rotatably attached to the vacuum cleaner body,
Forming the filter over the entire circumference on the inner circumference side of the dust collecting part,
A vortex forming means for allowing airflow to flow in the circumferential direction of the dust collecting part is provided,
A vacuum cleaner characterized in that a positioning recess for fitting with a positioning portion provided on an upper surface of the filter case is formed in the lid portion . 前記フィルタケースは、前記内側環状壁の下端周縁に形成された段部によって、前記内側環状壁と僅かな隙間を保って着脱自在に装着されていることを特徴とする請求項１記載の電気掃除機。2. The electric cleaning according to claim 1, wherein the filter case is detachably attached to the inner annular wall by a step formed at a lower edge of the inner annular wall with a slight gap from the inner annular wall. Machine.
JP2001185125A 2001-06-18 2001-06-19 Vacuum cleaner Expired - Fee Related JP3674031B2 (en)

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