JP4531206B2

JP4531206B2 - Cleaning aid

Info

Publication number: JP4531206B2
Application number: JP2000185231A
Authority: JP
Inventors: 泰啓大杉
Original assignee: 株式会社エヌケージー
Priority date: 2000-06-20
Filing date: 2000-06-20
Publication date: 2010-08-25
Anticipated expiration: 2020-06-20
Also published as: JP2002000514A

Description

【０００１】
【発明の属する技術分野】
本発明は、掃除補助のための種々の動作を行なわせるべく掃除機の吸気パイプの端部に取付けて用いられる掃除補助具に関する。
【０００２】
【従来の技術】
真空吸引式の掃除機は、吸気用のファンを内蔵し、該ファンの吸気口及び排気口が開設された本体部と、前記吸気口にその一端部を連結された吸気パイプと、該吸気パイプの他端部に取付けられた吸気ノズルとを備え、該吸気ノズルを所望の掃除か所に押し付けた状態で前記ファンを駆動することにより、吸気ノズルから吸気パイプ及び吸気口を経て本体部に導入される吸気の流れを生ぜしめ、前記掃除か所周辺の塵埃を吸引して、前記ファンに前置された捕集袋に捕集する構成となっている。
【０００３】
以上の如く構成された掃除機において、吸気パイプの先端に取り付けられる吸気ノズルは、吸気による集塵を効率良く行わせる作用をなすものであり、吸気用の開口の形状、及びこの開口を縁取るブラシの形状等、種々に異なる形態のものが用意され、対象となる掃除か所に応じて適宜に取り換えて用いることにより、良好な集塵性能が得られるようにしてある。
【０００４】
更に近年においては、回転、揺動等の適宜の動作をなす補助具を吸気ノズルに付設し、該補助具により、例えば、吸気ノズルが押し付けられる掃除か所の周囲を軽く叩き、該当か所の塵埃を浮き出させる等の掃除補助動作を行なわせるようにした掃除機が実用化されている。
【０００５】
ところが、この種の補助具の多くは、吸気ノズルに内蔵された電動モータによって駆動されており、この場合、前記モータ及び補助具への伝動機構の組み込みにより吸気ノズルの構成が複雑となって重量増加を招き、掃除機としての操作性が損なわれるという問題があり、前記補助具は、前述の如く、掃除か所の周辺を軽打する程度の軽負荷の補助動作に限って用いられているのが現状である。
【０００６】
このような事情に鑑み、本願出願人は、掃除機の吸気パイプ内を流れる吸気を利用して、専用のモータを用いることなく大なる駆動力を発生することができ、例えば、床、タイル磨きのための回転ブラシの駆動等の重負荷の動作を含めた種々の掃除補助動作を行なわせることができる掃除補助具を特願平10−353544号等に提案している。
【０００７】
この掃除補助具は、前記吸気パイプの端部への取付けにより該吸気パイプと連続する風路を形成する筒形のハウジングと、該ハウジングの内部に支持され、前記風路の内部を流れる通気の作用により回転する羽根車と、前記ハウジングの先端部に着脱自在に取り付けられ、前記羽根車からの伝動により掃除補助動作をなす作用部とを備えて構成されている。
【０００８】
この構成によれば、本体部のファンが駆動されて吸気パイプの内部に吸気の流れが生じると、この吸気の全量が前記羽根車を通気し、該羽根車が大なる回転力を発生することができ、この回転力が伝動される前記作用部において、重負荷の動作を含めた種々の掃除補助動作を行わせることができる。一方、掃除機の吸気パイプに装着されるハウジングは、前記羽根車を内蔵する中空の部材であり、重量物であるモータの組み込み、及び本体部からの継電機構が不要であり、端部に取り付けられる作用部を含めて軽量に構成することができ、掃除機の操作性が損なわれる虞れもない。
【０００９】
【発明が解決しようとする課題】
以上の如く、本願出願人により特願平10−353544号等に提案された掃除補助具は、掃除機の吸気パイプに取り付けて用いることにより、重負荷の動作を含めた種々の掃除補助動作を、操作性の悪化を招来することなく行わせ得る優れたものである。
【００１０】
しかしながら、以上の如く構成された掃除補助具においては、ハウジングに内蔵された羽根車の回転力及び回転速度が、該ハウジング内を流れる通気の量に応じて一義に定まることから、複数種の作用部の交換使用を可能とするには、夫々の作用部に、各別に最適な動作速度を得るべく、前記羽根車の回転速度を減速又は増速する変速手段を付設する必要が生じ、これらの作用部の構成が複雑化するという問題があった。
【００１１】
また、前記作用部としては、床、タイル磨きのための回転ブラシ等、対象となる掃除か所に応じて動作速度を変更して使用されるものがあり、このような要求に応えるべく変速比の切換えが可能な変速手段を付設した場合、該変速手段を含めた作用部の構成が一層複雑化することとなる。
【００１２】
更に、変速手段による動作速度の減速（又は増速）は、羽根車から伝達される回転力の比例的な増力（又は減力）を伴って生じるのに対し、前記回転ブラシ等の作用部に要求される動作速度の変更特性は、回転力の大なる変化（増減）を伴わずに動作速度を変える特性である場合が多く、このような特性は、前記変速手段の付設によって実現することは難しい。
【００１３】
本発明は斯かる事情に鑑みてなされたものであり、ハウジング内部の通気の作用により回転する羽根車の回転速度を、該羽根車内の通気量の加減により自在に変更することができ、ハウジングの端部に取り付けて交換使用される複数種の作用部に、各別に適正な動作速度での動作を行わせることを可能とした改良された掃除補助具を提供することを目的とする。
【００１４】
【課題を解決するための手段】
本発明の第１発明に係る掃除補助具は、掃除機の吸気パイプへの取付けにより該吸気パイプと連続する風路を形成する筒形のハウジングと、該ハウジングの内部に支持され、前記風路の内部を流れる通気の作用により回転する羽根車と、前記ハウジングの先端部に着脱自在に取り付けられ、前記羽根車からの伝動により掃除補助動作をなす作用部とを備える掃除補助具であって、前記羽根車は遠心羽根車であり、その軸方向に風路を形成するように前記筒形のハウジングに軸支されて、その羽根車の外周部から吸気を吸引して羽根車の内部の風路と前記ハウジングと前記羽根車の外部との間で形成する風路に分流して流出可能に形成され、前記羽根車の流出口に連続する筒形の風路を形成する固定筒と、軸長方向の移動により前記固定筒との間の隙間の間隔を変えるように可動筒を備えた分流手段を配設するとともに、該分流手段を前記ハウジングの外部から操作して前記羽根車の回転速度を調節する調速手段を配設し、前記ハウジングの外部から調速手段を操作して前記固定筒の他側に可動筒の一側を臨ませて前記固定筒と可動筒との間の隙間をなくした場合に、前記吸気パイプへの吸気の全量が羽根車の内部を通気するように風路を形成するようにし、前記ハウジングの外部から調速手段を操作して前記固定筒の他側から離して前記固定筒と可動筒との間に隙間を生じさせた場合に、前記吸気パイプへの吸気が羽根車の内部の風路と前記ハウジングと前記羽根車の外部との間で形成する風路に分流して通気するように形成して、該風路の通気を、前記羽根車の内部を通る作用流れと前記羽根車の内部をバイパスして前記ハウジングと前記羽根車の外部との間で形成する風路の非作用流れとに分流して前記羽根車を回転に作用する作用流れ及び非作用流れを増減せしめ、前記羽根車の回転速度を調節するようにしたことを特徴とする。
【００１５】
本発明においては、掃除機の吸気パイプに取り付けられて、該吸気パイプと連続し、吸気の全量が流れる風路を形成するハウジングの内部の流れを、調速手段によりハウジング外から操作される分流手段により、前記ハウジングの外部から調速手段を操作して前記固定筒の他側に可動筒の一側を臨ませて前記固定筒と可動筒との間の隙間をなくした場合に、前記吸気パイプへの吸気の全量が羽根車の内部を通気するように風路を形成するようにし、前記ハウジングの外部から調速手段を操作して前記固定筒の他側から離して前記固定筒と可動筒との間に隙間を生じさせた場合に、前記吸気パイプへの吸気が羽根車の内部と前記ハウジングと前記羽根車の外部との間で形成する風路に分流して通気するように形成して、羽根車の内部を通る作用流れと、羽根車の内部をバイパスする非作用流れとに分流し、羽根車の回転速度を、該羽根車内の作用流れを増減せしめて変更できる。
【００１６】
また第２発明に係る掃除補助具は、前記羽根車は、外周部に半径方向外向きに開口する流入口を備え、内周部に軸長方向の一側に開口する流出口を備える遠心羽根車であり、その羽根車の支軸に小径の歯車を取り付けて大径の歯車を係合して、前記ハウジングの先端開口部に着脱自在に取り付けられる作用部に減速回転伝達するように連結自在に形成し、前記分流手段は、前記流出口にその一側を接して前記ハウジングの内部に固定支持され、前記流出口に連続する筒形の風路を形成する固定筒と、該固定筒の他側にその一側を臨ませて前記ハウジングの内部に支持され、軸長方向の移動により前記固定筒との間の隙間を変え、該固定筒の内側風路に前記非作用流れを受け入れる可動筒とを備えることを特徴とする。
【００１７】
この発明においては、ハウジング内部の通気の作用により回転する羽根車を遠心羽根車の軸長方向の一側に開口する流出口に固定筒と可動筒とを連設して分流手段を構成しているとともに、可動筒を軸長方向に移動させて固定筒との間の隙間を変えることにより、羽根車の内部を通り、固定筒及び可動筒の内部を経て吸気パイプに吸い込まれる作用流れと、羽根車の内部をバイパスし、固定筒との間の隙間を経て可動筒内に導入され、吸気パイプに吸い込まれる非作用流れとに分流できて、上記のように羽根車の回転速度を、該羽根車内の作用流れを増減せしめて変更できる。
【００１８】
また第３発明に係る掃除補助具は、前記羽根車の外周に巻装してあり、前記流入口の一部を塞ぐ整流環を備えることを特徴とする。
【００１９】
この発明においては、遠心羽根車として構成されたハウジング内部の羽根車の外周に整流環を巻装し、外周に開口する流入口の一部を塞いで、該流入口に流入することなく羽根車の内部をバイパスする非作用流れを整流し、分流による速度調節下にて得られる回転速度を安定化する。
【００２０】
また第４発明に係る掃除補助具は、前記調速手段が、前記ハウジングの外側に摺動自在に保持され、該ハウジングの内側への延長部を前記可動筒に連結されたスライダと、該スライダの摺動位置を段階的に拘束する拘束手段とを備えることを特徴とする。
【００２１】
この発明においては、ハウジングの外側に摺動自在に保持されて段階的に拘束可能としたスライダを、ハウジングの内側に延長して可動筒に連結し、該スライダの摺動操作により可動筒を直接的に移動させて、この移動に応じた分流及び速度調節を簡素に実現する。
【００２２】
更に第５発明に係る掃除補助具は、前記拘束手段が、前記スライダに固定された板ばねと、前記ハウジングに形成され、前記板ばねが係合する凹所とを備えることを特徴とする。
【００２３】
この発明においては、ハウジング外に摺動自在に保持されたスライダを段階的に拘束する拘束手段を、スライダに固定保持された板ばねをハウジングに形成された凹所に係合せしめて簡素に構成する。
【００２４】
【発明の実施の形態】
以下本発明をその実施の形態を示す図面に基づいて詳述する。図１は、本発明に係る掃除補助具の外観斜視図、図２は、同じく分解斜視図である。図１中のＰは、掃除機の吸気パイプであり、本発明に係る掃除補助具は、吸気パイプＰの端部に取付けられたハウジング１と、該ハウジング１の内部に同軸上での回転自在に支持された羽根車２と、これらの羽根車２の回転をハウジング１の先端部に導く伝動軸３と、該ハウジング１の先端部に取付けられた作用部４とを備えて構成されている。
【００２５】
図１に示す如くハウジング１は、羽根車２を支持する筒形の羽根車ハウジング10と、伝動軸３を支持する筒形の伝動ハウジング11とを備えている。羽根車ハウジング10は、羽根車２の受け入れが可能に大径化された大径部を備え、また伝動ハウジング11は、伝動軸３の中途に嵌着された大径の平歯車30の受け入れが可能に大径化された大径部を備えている。
【００２６】
羽根車ハウジング10は、図２に示す如く、その大径部において軸長方向に分離可能に連結された第１ハウジング12と第２ハウジング13とを備えている。第１ハウジング12は、夫々の大径部が適長偏心した位置にて連続するように前記伝動ハウジング11と一体構成され、これらは、図２に示す如く、軸心を含む面内にて２つ割り可能とされている。而して前記ハウジング１は、２つ割りされた半部の組合わせにより伝動ハウジング11と第１ハウジング12とを一体化し、該第１ハウジング12の一側に第２ハウジング13を連結せしめて、図１に示す如く構成されている。
【００２７】
図２に示す如く、第２ハウジング13の他側（第１ハウジング12との連結側と逆側）には、吸気パイプＰよりも小径の円筒形状を有し、吸気パイプＰへの連結に使用するジョイント筒14が連設されている。このジョイント筒14には、締め付け環15が螺合されており、該締め付け環15よりも先端側に、複数のＯリング及びスペーサ環（いずれも参照符号省略）が外嵌保持させてある。
【００２８】
吸気パイプＰへのハウジング１の連結は、前記ジョイント筒14を吸気パイプＰの端部に内嵌し、この状態で締め付け環15をジョイント筒14の先端に向けて螺進させるように回転操作（締め付け操作）し、ジョイント筒14の外周に保持された複数のＯリングをスペーサ環との間にて押圧して変形させ、吸気パイプＰの内面に強く弾接せしめることにより実現される。
【００２９】
またこの連結は、締め付け環15を逆向きに回転操作（緩め操作）し、前記Ｏリングの押圧を緩和して、吸気パイプＰの内面への弾接程度を弱めることにより解除され、この状態でハウジング１は、吸気パイプＰから容易に抜き出すことができる。このようにハウジング１は、ジョイント筒14を介して吸気パイプＰの先端部に着脱自在に取付けられ、この取付けによりハウジング１の内部には、吸気パイプＰと連続する風路が形成される。なお、以上の連結構造の詳細については、前記特願平10−353544号に記載されている。
【００３０】
前記羽根車２は、後述の如く遠心羽根車として構成されており、図２に示す如く、その中途に小径の平歯車21を備える支軸20により、前記第１ハウジング12の大径部内に回転自在に支持され、前記吸気パイプＰとの連結によりハウジング１内に形成される風路内の通気の作用により回転するようになしてある。
【００３１】
また伝動軸３は、その中途に嵌着された大径の平歯車30の両側において前記伝動ハウジング11の大径部内に回転自在に支持されている。前記平歯車30は、羽根車ハウジング10の第１ハウジング12との連通部において前記平歯車21に噛合させてあり、前記通気の作用による羽根車２の回転は、支軸20、平歯車21及び平歯車30を介して伝動軸３に伝えられるようになしてある。
【００３２】
伝動ハウジング11の一側（図の右側）には、全面に亘って円形の開口部が設けてあり、この開口部に前記作用部４が取り付けてある。作用部４は、図２に示す如く、小判形断面を有する中空の回転台40と、該回転台40内に相互に重ねた状態で収納保持された２枚の通気板41，41及び１枚の保持板42と、該保持板42に植設固定された多数本の叩きチューブ43，43…とを備えてなり、前記回転台40と共に回転するこれらの叩きチューブ43，43…の先端により掃除か所を叩き、当該位置の塵埃を叩き出す動作、即ち、掃除補助具として古来から使用されている「はたき」と同等の動作を行わせる構成としたものである。
【００３３】
前記叩きチューブ43，43…は、可撓性に富む軟質樹脂製の中空体であり、図２に示す如く、種々の形態のものが用意され、前記保持板42に多数突設された筒形の取り付け部に各別に嵌め込み固定されている。なお図１には、２本の叩きチューブ43，43の取り付け状態が示されている。
【００３４】
また保持板42に積層された２枚の通気板41，41には、夫々を表裏に貫通する多数の通気孔が形成されており、夫々の叩きチューブ43，43…の先端から、保持板42及び通気板41，41を経て回転台40への通気が可能に構成されている。
【００３５】
回転台40の底面中央には、伝動ハウジング11先端の開口部への嵌め込みが可能な円形断面の支持筒 40aが連設されており、作用部４は、前記支持筒 40aを伝動ハウジング11の先端に嵌め込む一方、該伝動ハウジング11の軸心部に支持された前記伝動軸３の先端部を、通気板41，41の中央を通して保持板42に嵌め込み、これらを、回転台40の外側から挿通される止めピン44により連結して取り付けられている。
【００３６】
この取り付けにより作用部４は、前記支持筒 40aの嵌め込みにより伝動ハウジング11の先端部に支えられた回転台40の軸回りに、前記伝動軸３からの伝動に応じて回転することとなる。前記伝動軸３の先端は、図２に示す如く、矩形断面を有しており、このような矩形の先端部を前記保持板42に嵌め込み、前述した回転伝動が確実に行われるようにしてある。
【００３７】
また伝動軸３の矩形部は、図２に示す如く、伝動ハウジング11の内側部分に至るまで延長されており、この延長部には、伝動ハウジング11の中途部に外側から挿通保持されたストッパピン31の内側端が臨ませてある。該ストッパピン31は、図１に示す如く、伝動ハウジング11の外側に適長突出せしめた状態に保持されており、この突出部を内側に押し込むことにより、前記伝動軸３の矩形部分に外側から押し当てて、前記伝動軸３の回転、及びこの回転の伝動により生じる前記作用部４の動作を緊急停止せしめる手段として使用される。
【００３８】
更に、羽根車２を収納する第１ハウジング12は、前記ストッパピン31と同様、外側から挿通保持されたブレーキピン32を備えている。該ブレーキピン32の内側端は、羽根車２の回転軸としての支軸20の外周に臨ませてあり、同じく外側端は、第１ハウジング12の外側に適長突出させてある。なおこの突出部は、図１と逆側の面に現れており、ブレーキピン32は、図２にのみ示されている。
【００３９】
以上の如きブレーキピン32は、ストッパピン31と同様に、第１ハウジング12の外側への突出部を内向きに押し込むことにより、前記支軸20の外周に押し当て、該支軸20の回転、及びこの回転の伝動により生じる作用部４の動作を制限すべく使用される。図２に示す如くブレーキピン32には、これを外向きに付勢する復帰ばね33が付設してあり、前記支軸20へのブレーキピン32の押し当ては、前記押し込みのための力が解除されたとき、前記復帰ばね33のばね力により解除されるようになしてある。
【００４０】
以上の如きブレーキピン32の押し当ては、円形断面を有する支軸20に対してなされるから、該支軸20は、ブレーキピン32の押し込みにより回転を制限されるのみであり、この制限は、ブレーキピン32に押し込み力が加えられている間のみ生じる。このようなブレーキピン32は、例えば、本発明に係る掃除補助具の使用中に掃除か所を変更する場合等に、作用部４の動作速度を一時的に減じる手段として使用される。
【００４１】
以上の如く構成された本発明に係る掃除補助具は、ハウジング１の内部の通気を、羽根車２の内部を流れる作用流れと、羽根車２の内部をバイパスする非作用流れとに分流する分流手段５を備え、また、この分流手段５をハウジング１の外側から操作して、前記羽根車２の回転速度を増減調節する調速手段６を備えている。
【００４２】
分流手段５は、図２に示す如く、羽根車ハウジング10の半部を構成する第２ハウジング13の内部に、後述の如く構成された固定筒50と可動筒51とを備えて構成されている。また調速手段６は、前記第２ハウジング13の外側に、羽根車２が収納される大径部と前記ジョイント筒14との間を矩形に区画して設けられた保持部60と、該保持部60内にて軸長方向に摺動するスライダ61とを備えて構成されている。
【００４３】
図３は、分流手段５を構成する固定筒50及び可動筒51の外観斜視図、図４及び図５は、分流手段５の構成部分近傍の拡大断面図である。
【００４４】
図４及び図５には、前記羽根車２の支持状態が併せて示されている。これらの図に示す如く羽根車２は、軸長方向に並設された円板形をなす一対の側板間に周方向に等配をなして複数枚の羽根板を架設し、各羽根板間に、その外周部と中心部との間にて同向きに湾曲する流路を形成してなる公知の遠心羽根車として構成されており、該羽根車２は、前述の如く、軸心部に嵌着された支軸20を第１ハウジング12内に支持し、第１ハウジング12と第２ハウジング13との合わせ部に構成された大径部内に、図示の如く、一方の側板の中央に円形をなして開設された流出口を第２ハウジング13の側に向けて取り付けられている。
【００４５】
また羽根車２の外周には、前記一対の側板間にて全周に亘って開口する流入口が形成されており、この流入口から羽根車２内に流入する通気は、該羽根車２の内側流路の湾曲に沿って流れ、この流れが各羽根板を同向きに押圧して羽根車２を回転せしめ、前述の如くこの回転が、支軸20、平歯車21及び平歯車30を介して伝動軸３に伝えられる。
【００４６】
図示の如く羽根車２の外周には、前記流入口の一部を塞ぐように環状をなす整流環22が巻装してあり、羽根車２内に流入する通気は、前記整流環22の作用により軸方向に向かう流れに一旦整流された後、半径方向内向きに方向を変えて前記流入口に流れ込むようにしてある。
【００４７】
分流手段５を構成する固定筒50は、図３に示す如く、短寸円筒形をなす部材であり、その外面から半径方向外向きに突設された４本の支持脚52，52…を備えている。また固定筒50の一側には、これよりもやや小径であり、前記羽根車２の流出口と略等しい外径を有して成形された差し込み筒53が一体に連設してあり、更に固定筒50の他端縁は、端部に向けて漸次小径となるように成形されたテーパ縁54としてある。
【００４８】
このように構成された固定筒50は、前記支持脚52，52…の先端を第２ハウジング13の大径部周縁に夫々ねじ止めし、該第２ハウジング13の内部に同軸的に固定支持されており、図４及び図５に示す如く、第２ハウジング13を第１ハウジング12に組み付けたとき、第１ハウジング12の側に向けた前記差し込み筒53が、前記羽根車２の流出口に差し込まれ、該流出口を介して羽根車２の内部に連続する筒形の風路を形成するようになしてある。
【００４９】
このような固定筒50と共に分流手段を構成する可動筒51は、図３に示す如く、固定筒50と略同径の円筒体であり、前記ジョイント筒14に連続する第２ハウジング13の円筒部に内嵌され、該円筒部内にて軸長方向への移動自在に保持させてある。可動筒51の一側端縁は、端部に向けて漸次大径となるように成形されたテーパ縁55としてあり、このテーパ縁55は、図４に示す如く、可動筒51が前記固定筒50の側に移動せしめられた状態においては、該固定筒50の同側端部に形成された前記テーパ縁54に密に整合して、該固定筒50を介して前記羽根車２の内部に連続し、また前記ジョイント筒14を介して掃除機の吸気パイプＰ（図１参照）に連続する風路を形成するようになしてある。
【００５０】
図５は、可動筒51が固定筒50から離れた側に移動した状態を示している。この状態において可動筒51のテーパ縁55は、固定筒50のテーパ縁54から離反し、両者間には、全周に亘って開口する隙間が形成される。この隙間の形成位置は、図示の如く、第２ハウジング13の大径部内であり、前記隙間は、羽根車２の外側を前記固定筒50及び可動筒51の内側風路に連通するバイパス通路を形成する。
【００５１】
図２及び図３に示す如く可動筒51は、半径方向に対向する２か所を周方向の適幅に亘って軸長方向に延長してなる延長部56，56を備えており、これらの延長部56，56の形成部位の略中央には、前記調速手段６のスライダ61，61を連結するための連結孔57，57（片側のみ図示）が形成されている。
【００５２】
スライダ61は、図１に示されているように、矩形ブロック状の部材であり、可動筒51を内側に保持する第２ハウジング13の外側を矩形に区画して形成された保持部60内に配設されている。図１及び図２に示されているように、前記保持部60の内側中央には、第２ハウジング13の軸長方向、即ち、可動筒51の移動方向に延びる長孔の形態をなすガイド孔62が、前記第２ハウジング13の周壁を貫通して形成されており、前記スライダ61は、図２に示す如く、略中央部を貫通するガイドピン63を前記ガイド孔62に挿入し、第２ハウジング13の内側への突出端を前記連結孔57に差し込むことにより、前記可動筒51と一体に連結されている。
【００５３】
この構成によりスライダ61は、第２ハウジング13の外側においてガイド孔62の延設方向に摺動操作することができ、この操作に応じて第２ハウジング13内側の可動筒51は、ガイド孔62の延設方向、即ち、第２ハウジング13の軸長方向に移動せしめられ、前述の如く、固定筒50との間のバイパス通路の幅が増減される。可動筒51に設けられた延長部56，56は、該可動筒51の移動範囲の全域に亘ってガイド孔62の内側を塞ぎ、第２ハウジング13の内部への外気の進入を防ぐ作用をなすべく設けてある。
【００５４】
図１及び図２に示す如く、前記保持部60の側縁の内、第２ハウジング13の軸長方向に延びる側縁の内側には、所定の間隔毎に凹形に切欠かれた係合凹所が形成されており、これらの側縁に対向する前記スライダ61の両側面には、山形に屈曲成形された板ばね64，64が固定されており、これらの板ばね64，64は、前記係合凹所に係合せしめられている。
【００５５】
この構成により、ガイド孔62に沿って生じるスライダ61の摺動位置、及びスライダ61と共に移動する可動筒51の移動位置は、スライダ61に取り付けられた板ばね64，64が前記係合凹所の夫々に係合する位置にて各別に拘束され、前記可動筒51と固定筒50との間に形成されるバイパス通路の幅は、前記係合凹所の形成間隔毎に段階的に変更することができる。またスライダ61の摺動操作は、前記板ばね64，64が弾性に抗して変形し、各係合凹所間の突出部を乗り越えることにより達成される。
【００５６】
以上の如く構成された本発明に係る掃除補助具は、羽根車２を内蔵する羽根車ハウジング10、及び伝動軸３を内蔵する伝動ハウジング11を一体化して構成されたハウジング１を、前述の如く、羽根車ハウジング10の端部に連設されたジョイント筒14を介して吸気パイプＰの端部に連結し、更に、伝動ハウジング11の先端開口部に作用部４を取り付け、前記吸気パイプＰの他側に連結された図示しない掃除機本体の内蔵ファンを駆動して用いられる。前記ハウジング１は、吸気パイプＰと連続し、作用部４に植設された中空の叩きチューブ43，43…の夫々を介して外部と連通する風路を形成しており、前記ファンを駆動せしめた場合、各叩きチューブ43，43…の先端から外気が吸込まれ、ハウジング１の内部を経て吸気パイプＰに吸気される。
【００５７】
この吸気は、羽根車ハウジング10の内部に支持された羽根車２に外周の流入口から導入され、該羽根車２の内部を内向きに通気し、一側中央に開口する流出口から導出される経路を辿って流れ、この通気の作用により羽根車２が回転する。この回転は、該羽根車２の支軸20、平歯車21及び平歯車30を介して伝動軸３に伝えられ、該伝動軸３の回転が作用部４に伝わり、該作用部４が、これに植設された多数本の叩きチューブ43，43…と共に回転する。
【００５８】
而して、このように回転する叩きチューブ43，43…の先端を所望の掃除か所に当接させると、当接か所周辺の塵埃が、各叩きチューブ43，43…の「はたき」作用により周辺に飛散し、これらの叩きチューブ43，43…先端に前述の如く生じている吸気と共にハウジング１内に吸込まれ、該ハウジング１に連結された吸気パイプＰの内部を経て図示しない掃除機本体に送り込まれて、該本体内部の捕集袋に捕集される。
【００５９】
以上の如き作用部４の動作は、伝動ハウジング11を経て羽根車ハウジング10内に入る吸気の作用により羽根車２が回転することによって生じる。羽根車２の回転は、前述の如く、外周に形成された流入口から導入されて羽根車２の内部を内向きに流れ、一側中央に開口する流出口から導出される通気の作用によって発生し、羽根車２から導出された通気は、前記流出口に連続する前記固定筒50及び可動筒51の内側風路を経て前記吸気パイプＰ内に吸気される。
【００６０】
ここで、図４に示す如く、前記可動筒51が固定筒50の側に移動せしめられ、可動筒51のテーパ縁55が固定筒50のテーパ縁54が密に整合した状態にある場合、羽根車２の内部には、ハウジング１内部の吸気の全量が通気し、該羽根車２は、大なる回転力にて高速回転することとなり、作用端となる叩きチューブ43，43…の先端に高負荷が加わった状態においても安定した「はたき」動作を行わせることができる。
【００６１】
一方、ハウジング１の外部から行われる調速手段６の操作、即ち、前記スライダ61の摺動位置の変更操作により、可動筒51が固定筒50から離反する方向に移動せしめられた場合、図５に示す如く、可動筒51のテーパ縁55と固定筒50のテーパ縁54との間にバイパス通路が形成され、このバイパス通路内には、図中に矢符により示す如く、羽根車２の前室を構成する前記第２ハウジング13内部からの吸気が生じる。
【００６２】
この状態においてハウジング１内への吸気は、羽根車２の内部を経て固定筒50及び可動筒51の内側風路を流れ、前述の如く羽根車２に作用する作用流れと、羽根車２の前室から前記バイパス通路に吸気され、羽根車２に作用することなく可動筒51の内側風路に流入する非作用流れとに分流せしめられる。
【００６３】
このとき前記羽根車２の内部には、ハウジング１内部の吸気の一部のみが通気し、この通気の作用による羽根車２の回転速度が低下することとなり、該羽根車２を駆動源とする作用部４の動作、即ち、叩きチューブ43，43…による前述した「はたき」動作を低速度にて緩やかに行わせることができる。また、このような動作速度の低下は、作用流れの減少により羽根車２の回転力の低下を伴って生じるから、低速度にて回転する叩きチューブ43，43…による叩きは、掃除か所に大なる力を加えることなく柔らかになされ、掃除か所に応じた適正な掃除補助動作を行わせることが可能となる。
【００６４】
作用部４の動作速度は、調速手段６を構成するスライダ61の摺動操作により可動筒51を移動させて、固定筒50との間のバイパス通路の開口幅を変えることにより多段階に変更される。スライダ61の摺動位置は、これに取り付けた板ばね64，64が、保持部60内縁の係合凹所との係合することにより拘束されるから、スライダ61の摺動操作により設定された作用部４の動作速度は変動することなく維持され、前述した掃除補助動作を安定して行わせることができる。
【００６５】
また羽根車２の外周には、前記整流環22が巻装されており、この整流環22は、前述の如く、羽根車２への導入前の通気を軸方向流れに整流する作用をなす。従って、図５に示す如くバイパス通路が開口状態にあるとき、羽根車２の外周に達した吸気は、前記整流環22の作用により整流されて羽根車２の前室内に安定して流れ込み、開口したバイパス通路を経て可動筒51の内部に導入される。また前記バイパス通路は、図５に示す如く、固定筒50のテーパ縁54と可動筒51のテーパ縁55との間に、可動筒51の側に向けて傾斜した通路として形成されるから、可動筒51内への非作用流れの導入は安定して生じ、非作用流れと作用流れとの分流は確実に行われる。
【００６６】
このように本発明に係る掃除補助具によれば、ハウジング１の内側の分流手段５を、前記ハウジング１外側から調速手段６により操作することにより、作用部４の動作速度を多段階に安定して増減することができ、障子、襖等の破損し易いか所を含む種々の掃除か所に対し、「はたきがけ」を行いつつ塵埃を捕集するという効率的な掃除動作を行わせることができる。なお、羽根車２をバイパスする非作用流れは、可動筒52の内側風路を経て吸気パイプＰに吸気されるから、前記叩きチューブ43，43…の先端からの吸気の全量は、前記調速操作の如何に拘らず殆ど変化せず、この吸気による塵埃の捕集能力が低下することはない。
【００６７】
ハウジング１の先端には、以上の如く「はたき」作用をなすべく回転する作用部４に代えて、他の掃除補助動作をなす作用部を取り付けることもできる。例えば、前記特願平10−353544号に開示されているように、「はたき」作用をなすべく揺動する作用部、床、タイル等の表面を磨くべく回転するブラシの取り付けが可能であり、目的に応じて逐次交換して用いればよい。
【００６８】
【発明の効果】
以上詳述した如く本発明の第１発明に係る掃除補助具においては、掃除機の吸気パイプに取付けられ、該吸気パイプへの吸気の全量が流れるハウジングの内部の流れを、ハウジング外の調速手段により操作される分流手段により、ハウジングの外部から調速手段を操作して前記固定筒の他側に可動筒の一側を臨ませて前記固定筒と可動筒との間の隙間をなくした場合に、前記吸気パイプへの吸気の全量が羽根車の内部を通気するように風路を形成するようにし、前記ハウジングの外部から調速手段を操作して前記固定筒の他側から離して前記固定筒と可動筒との間に隙間を生じさせた場合に、前記吸気パイプへの吸気が羽根車の内部の風路と前記ハウジングと前記羽根車の外部との間で形成する風路に分流して通気するように形成できて、羽根車の内部を通る作用流れと、羽根車の内部をバイパスする非作用流れとに分流し、羽根車の回転速度を、該羽根車内の作用流れを増減せしめて変更できる。そのため、前記羽根車の回転速度を回転力の変化を伴うことなく自在に変更することができ、該羽根車からの伝動により動作する作用部の動作速度を掃除か所に応じて適正に設定することが可能となり、種々の掃除か所に合わせて掃除補助動作を行わせわせることが、作用部の構成の複雑化を招くことなく実現される。
【００６９】
また第２発明に係る掃除補助具においては、遠心羽根車の羽根車の支軸に小径の歯車を取り付けて大径の歯車を係合して、前記ハウジングの先端開口部に着脱自在に取り付けられる作用部に減速回転伝達するように連結自在に形成したから、該羽根車からの伝動により動作する作用部の動作速度を掃除か所に応じて減速することが可能となり、種々の掃除か所に合わせて掃除補助動作を行わせわせることができる。また、羽根車の一側に開口する流出口に固定筒と可動筒とを連設して構成し、可動筒の軸長方向移動により変化する固定筒との間の隙間を非作用流れの通路として利用したから、作用流れと非作用流れとの分流が簡素な構成にて確実になされ、羽根車の回転速度及び作用部の動作速度の掃除か所に応じた適正な設定を簡易に行わせることが可能となる。
【００７０】
また第３発明に係る掃除補助具においては、羽根車の外周に流入口の一部を塞ぐ整流環を備え、該整流環の作用により羽根車への流入前の吸気を軸長方向に整流する構成としたから、羽根車の内部をバイパスする非作用流れが安定し、分流による速度調節下での羽根車の回転速度及び作用部の動作速度の変動が抑制されて、安定した掃除補助動作を行わせることができる。
【００７１】
また第４発明に係る掃除補助具においては、第２又は第３発明の分流手段をハウジング外から操作する調速手段を、ハウジングの外側に摺動自在に保持されて段階的に拘束可能としたスライダを、ハウジングの内側に延長して可動筒に連結して構成したから、可動筒の移動による分流及び速度調節を簡素な構成により確実に行わせることができ、良好な操作性が実現される。
【００７２】
更に第５発明に係る掃除補助具においては、第４発明のスライダの拘束を、該スライダに固定保持された板ばねをハウジングに形成された凹所に係合せしめて実現したから、可動筒の移動による分流及び速度調節の結果を簡素な構成により確実に保持し、変動の少ない動作速度下にて掃除補助動作を良好に行わせることが可能となる等、本発明は優れた効果を奏する。
【図面の簡単な説明】
【図１】本発明に係る掃除補助具の外観斜視図である。
【図２】本発明に係る掃除補助具の分解斜視図である。
【図３】分流手段を構成する固定筒及び可動筒の外観斜視図である。
【図４】分流手段の構成部分近傍の拡大断面図である。
【図５】分流手段の構成部分近傍の拡大断面図である。
【符号の説明】
１ハウジング
２羽根車
３伝動軸
４作用部
５分流手段
６調速手段
10 羽根車ハウジング
11 伝動ハウジング
22 整流環
40 回転台
42 保持板
43 叩きチューブ
50 固定筒
51 可動筒
61 スライダ
Ｐ吸気パイプ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cleaning aid that is used by being attached to an end of an intake pipe of a vacuum cleaner so as to perform various operations for cleaning assistance.
[0002]
[Prior art]
A vacuum suction type vacuum cleaner has a built-in intake fan, a main body portion in which an intake port and an exhaust port of the fan are opened, an intake pipe whose one end is connected to the intake port, and the intake pipe And the intake nozzle attached to the other end of the nozzle, and the fan is driven in a state where the intake nozzle is pressed against a desired cleaning place, so that the intake nozzle is introduced into the main body through the intake pipe and the intake port. The intake air flow is generated, dust around the cleaning place is sucked, and collected in a collection bag placed in front of the fan.
[0003]
In the vacuum cleaner configured as described above, the intake nozzle attached to the tip of the intake pipe serves to efficiently collect dust by intake air, and shapes the intake opening and borders the opening. Various shapes such as the shape of the brush are prepared, and good dust collection performance can be obtained by appropriately replacing depending on the target cleaning place.
[0004]
Further, in recent years, an auxiliary tool that performs appropriate operations such as rotation and swinging is attached to the intake nozzle, and the auxiliary tool, for example, taps the area around the cleaning place where the intake nozzle is pressed, 2. Description of the Related Art Vacuum cleaners that perform cleaning assist operations such as raising dust are put into practical use.
[0005]
However, many of these types of auxiliary tools are driven by an electric motor built in the intake nozzle, and in this case, the structure of the intake nozzle becomes complicated due to the incorporation of a transmission mechanism in the motor and the auxiliary tools. There is a problem that the operability as a vacuum cleaner is impaired due to an increase, and as described above, the auxiliary tool is used only for auxiliary operation with a light load to lightly strike the periphery of the cleaning place. is the current situation.
[0006]
In view of such circumstances, the applicant of the present application can generate a large driving force without using a dedicated motor by using the intake air flowing in the intake pipe of the vacuum cleaner, for example, floor, tile polishing. Japanese Patent Application No. 10-353544 proposes a cleaning assisting tool capable of performing various cleaning assisting operations including a heavy load operation such as driving of a rotating brush for the purpose.
[0007]
The cleaning aid includes a cylindrical housing that forms an air passage that is continuous with the intake pipe by being attached to an end of the intake pipe, and an air flow that is supported inside the housing and flows through the air passage. An impeller that is rotated by an action, and an action part that is detachably attached to the tip of the housing and that performs a cleaning assisting action by transmission from the impeller.
[0008]
According to this configuration, when the fan of the main body is driven and the flow of the intake air is generated inside the intake pipe, the entire amount of the intake air ventilates the impeller, and the impeller generates a large rotational force. In the operation portion to which the rotational force is transmitted, various cleaning assisting operations including heavy load operations can be performed. On the other hand, the housing that is attached to the intake pipe of the vacuum cleaner is a hollow member that houses the impeller, and does not require the incorporation of a heavy motor and the relay mechanism from the main body, and is attached to the end. It can be configured to be lightweight, including the action part to be attached, and there is no possibility that the operability of the vacuum cleaner is impaired.
[0009]
[Problems to be solved by the invention]
As described above, the cleaning assisting tool proposed in Japanese Patent Application No. 10-353544 by the applicant of the present application is used by attaching it to an intake pipe of a vacuum cleaner, thereby performing various cleaning assisting operations including heavy load operations. It is excellent that it can be performed without incurring deterioration in operability.
[0010]
However, in the cleaning aid configured as described above, the rotational force and the rotational speed of the impeller built in the housing are uniquely determined according to the amount of air flowing through the housing, so that there are a plurality of types of actions. In order to be able to replace and use the parts, it is necessary to provide speed change means for reducing or increasing the rotational speed of the impeller in order to obtain the optimum operating speed for each action part. There was a problem that the configuration of the action part was complicated.
[0011]
In addition, the action part includes a floor, a rotating brush for polishing tiles, etc., which are used by changing the operation speed in accordance with the target cleaning place. If a transmission means capable of switching between the two is provided, the configuration of the action part including the transmission means becomes more complicated.
[0012]
Further, the reduction (or increase) in the operation speed by the speed change means is accompanied by a proportional increase (or decrease) in the rotational force transmitted from the impeller, whereas in the action part such as the rotary brush. The required change characteristic of the operating speed is often a characteristic that changes the operating speed without a large change (increase / decrease) in the rotational force, and such a characteristic can be realized by providing the transmission means. difficult.
[0013]
The present invention has been made in view of such circumstances, and the rotational speed of an impeller that rotates by the action of ventilation inside the housing can be freely changed by adjusting the amount of ventilation in the impeller. It is an object of the present invention to provide an improved cleaning aid that allows a plurality of types of working parts attached to the end part to be used for replacement to be operated at appropriate operating speeds.
[0014]
[Means for Solving the Problems]
A cleaning aid according to a first aspect of the present invention includes a cylindrical housing that forms an air passage that is continuous with the intake pipe by being attached to the intake pipe of a vacuum cleaner, and is supported inside the housing. A cleaning assisting tool comprising: an impeller that rotates by the action of ventilation flowing through the interior of the housing; and an action part that is detachably attached to a distal end portion of the housing and that performs a cleaning assisting operation by transmission from the impeller, The impeller is a centrifugal impeller, and is supported by the cylindrical housing so as to form an air passage in the axial direction of the impeller. A fixed cylinder that forms a cylindrical air passage that is formed so as to be able to flow out of the air passage formed between the passage, the housing, and the outside of the impeller so as to flow out and to be continuous with the outlet of the impeller; Distributing means having a movable cylinder is disposed so as to change the gap between the fixed cylinder and the rotational speed of the impeller by operating the diverting means from the outside of the housing. And a gap between the fixed cylinder and the movable cylinder by operating the governor from the outside of the housing so that one side of the movable cylinder faces the other side of the fixed cylinder. If the air intake is lost, the entire amount of intake air into the intake pipe will ventilate the inside of the impeller. When the air passage is formed as described above and the speed adjusting means is operated from the outside of the housing to separate from the other side of the fixed cylinder and a gap is generated between the fixed cylinder and the movable cylinder, The intake air to the intake pipe is formed so as to be diverted and ventilated to an air passage formed between an air passage inside the impeller and the housing and the outside of the impeller, The ventilation of the air passage is divided into a working flow passing through the inside of the impeller and a non-working flow of the air passage formed between the housing and the outside of the impeller by bypassing the inside of the impeller. Increase or decrease the working flow and non-working flow acting on the rotation of the impeller to reduce the rotation speed of the impeller. Adjusted It is characterized by that.
[0015]
In the present invention, the internal flow of the housing, which is attached to the intake pipe of the vacuum cleaner and is continuous with the intake pipe and forms an air passage through which the entire amount of intake air flows, is divided from the outside of the housing by the speed control means. By means When the speed adjusting means is operated from the outside of the housing so that one side of the movable cylinder faces the other side of the fixed cylinder and the gap between the fixed cylinder and the movable cylinder is eliminated, An air passage is formed so that the entire amount of the intake air is passed through the inside of the impeller, and the speed control means is operated from the outside of the housing so as to be separated from the other side of the fixed cylinder and the fixed cylinder and the movable cylinder When a gap is generated between the intake pipe and the intake pipe, it is formed so as to be diverted and ventilated to an air passage formed between the inside of the impeller and the housing and the outside of the impeller, Dividing into a working flow passing through the inside of the impeller and a non-working flow bypassing the inside of the impeller, and changing the rotational speed of the impeller by increasing or decreasing the working flow in the impeller it can .
[0016]
Moreover, the cleaning assistance tool which concerns on 2nd invention WHEREIN: The said impeller is provided with the inflow port opened to radial direction outward in an outer peripheral part, and the centrifugal blade provided with the outflow port opened to the axial direction one side in an inner peripheral part Car A small-diameter gear is attached to the support shaft of the impeller, and a large-diameter gear is engaged. The diversion means is fixedly supported inside the housing with one side in contact with the outlet, and forms a cylindrical air passage continuous with the outlet, and on the other side of the fixed cylinder A movable cylinder that is supported inside the housing with one side facing, changes a gap with the fixed cylinder by movement in the axial length direction, and receives the non-acting flow in an inner air passage of the fixed cylinder It is characterized by that.
[0017]
In the present invention, the impeller that rotates by the action of ventilation inside the housing is replaced with the centrifugal impeller. Axis of A fixed cylinder and a movable cylinder are connected to the outlet opening on one side in the longitudinal direction to form a flow dividing means. And By moving the movable cylinder in the axial length direction and changing the gap between the fixed cylinder and the impeller, the working flow is drawn into the intake pipe through the inside of the impeller and the fixed cylinder and the movable cylinder. Bypassing the interior, it is introduced into the movable cylinder through a gap with the fixed cylinder, and is divided into a non-acting flow sucked into the intake pipe The rotational speed of the impeller can be changed by increasing or decreasing the working flow in the impeller as described above. .
[0018]
Moreover, the cleaning assistance tool which concerns on 3rd invention is wound around the outer periphery of the said impeller, and is provided with the rectifier ring which plugs up a part of said inflow port.
[0019]
In the present invention, a rectifying ring is wound around the outer periphery of an impeller inside a housing configured as a centrifugal impeller, and a part of the inlet opening opened to the outer periphery is blocked, so that the impeller does not flow into the inlet. The non-working flow that bypasses the inside of the rectifier is rectified to stabilize the rotational speed obtained by adjusting the speed by diversion.
[0020]
According to a fourth aspect of the present invention, there is provided a cleaning assisting tool comprising: a slider in which the speed adjusting means is slidably held on the outside of the housing, and an inward extension of the housing is connected to the movable cylinder; And a restraining means for restraining the sliding position in a stepwise manner.
[0021]
In this invention, a slider that is slidably held outside the housing and that can be restrained in stages is extended to the inside of the housing and connected to the movable cylinder, and the movable cylinder is directly connected by sliding operation of the slider. Therefore, the diversion and the speed adjustment according to the movement are simply realized.
[0022]
Furthermore, the cleaning aid according to a fifth aspect of the invention is characterized in that the restraining means includes a leaf spring fixed to the slider, and a recess formed in the housing and engaged with the leaf spring.
[0023]
In the present invention, the restraining means for restraining the slider slidably held outside the housing in a stepwise manner is simply constructed by engaging the leaf spring fixedly held by the slider with the recess formed in the housing. .
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. FIG. 1 is an external perspective view of a cleaning aid according to the present invention, and FIG. 2 is an exploded perspective view of the same. P in FIG. 1 is an intake pipe of a vacuum cleaner, and a cleaning auxiliary tool according to the present invention includes a housing 1 attached to an end portion of the intake pipe P, and can be rotated coaxially within the housing 1. The impeller 2 supported by the shaft 1, the transmission shaft 3 that guides the rotation of the impeller 2 to the distal end portion of the housing 1, and the action portion 4 attached to the distal end portion of the housing 1. .
[0025]
As shown in FIG. 1, the housing 1 includes a cylindrical impeller housing 10 that supports the impeller 2, and a cylindrical transmission housing 11 that supports the transmission shaft 3. The impeller housing 10 includes a large-diameter portion that has a large diameter so that the impeller 2 can be received, and the transmission housing 11 receives a large-diameter spur gear 30 that is fitted in the middle of the transmission shaft 3. It has a large-diameter part that has been increased in diameter.
[0026]
As shown in FIG. 2, the impeller housing 10 includes a first housing 12 and a second housing 13 that are separably connected in the axial direction at the large diameter portion. The first housing 12 is integrally formed with the transmission housing 11 so that the respective large-diameter portions are continuous at a position decentered by an appropriate length. As shown in FIG. It can be split. Thus, in the housing 1, the transmission housing 11 and the first housing 12 are integrated by a combination of two divided halves, and the second housing 13 is connected to one side of the first housing 12, It is configured as shown in FIG.
[0027]
As shown in FIG. 2, the other side of the second housing 13 (the side opposite to the side connected to the first housing 12) has a cylindrical shape smaller in diameter than the intake pipe P and is used for connection to the intake pipe P. The joint cylinder 14 is continuously provided. A tightening ring 15 is screwed onto the joint cylinder 14, and a plurality of O-rings and spacer rings (both of which are omitted from reference numerals) are fitted and held on the front end side of the tightening ring 15.
[0028]
The housing 1 is connected to the intake pipe P by rotating the joint cylinder 14 into the end of the intake pipe P and rotating the fastening ring 15 toward the tip of the joint cylinder 14 in this state ( Tightening operation), and a plurality of O-rings held on the outer periphery of the joint cylinder 14 are pressed between the spacer rings to be deformed, and are firmly brought into elastic contact with the inner surface of the intake pipe P.
[0029]
Further, this connection is released by rotating the tightening ring 15 in the reverse direction (relaxing operation), relaxing the pressure of the O-ring, and weakening the degree of elastic contact with the inner surface of the intake pipe P. The housing 1 can be easily extracted from the intake pipe P. In this way, the housing 1 is detachably attached to the front end portion of the intake pipe P via the joint cylinder 14, and an air passage continuous with the intake pipe P is formed inside the housing 1 by this attachment. The details of the above connecting structure are described in Japanese Patent Application No. 10-353544.
[0030]
The impeller 2 is configured as a centrifugal impeller as will be described later. As shown in FIG. 2, the impeller 2 is rotated into a large diameter portion of the first housing 12 by a support shaft 20 having a small diameter spur gear 21 in the middle thereof. It is supported freely and is rotated by the action of ventilation in the air passage formed in the housing 1 by connection with the intake pipe P.
[0031]
The transmission shaft 3 is rotatably supported in the large-diameter portion of the transmission housing 11 on both sides of a large-diameter spur gear 30 fitted in the middle thereof. The spur gear 30 is meshed with the spur gear 21 at a portion where the impeller housing 10 communicates with the first housing 12, and the rotation of the impeller 2 due to the aeration action causes the support shaft 20, spur gear 21 and It is transmitted to the transmission shaft 3 via the spur gear 30.
[0032]
On one side (right side in the figure) of the transmission housing 11, a circular opening is provided over the entire surface, and the action part 4 is attached to this opening. As shown in FIG. 2, the action section 4 includes a hollow turntable 40 having an oval cross section, and two ventilation plates 41, 41 and one piece stored and held in the turntable 40 while being stacked on each other. And a plurality of tapping tubes 43, 43... Implanted and fixed to the holding plate 42, and cleaning is performed by the tips of these tapping tubes 43, 43. An operation of hitting a place and hitting dust at the position, that is, an operation equivalent to “habataki” that has been used since ancient times as a cleaning auxiliary tool is performed.
[0033]
The hitting tubes 43, 43,... Are hollow bodies made of a soft resin rich in flexibility. As shown in FIG. It is fitted and fixed to each mounting part. FIG. 1 shows the attachment state of the two tapping tubes 43, 43.
[0034]
The two ventilation plates 41, 41 stacked on the holding plate 42 are formed with a large number of ventilation holes penetrating the front and back surfaces of the two ventilation plates 41, 41. In addition, air can be ventilated to the turntable 40 through the ventilation plates 41, 41.
[0035]
At the center of the bottom surface of the turntable 40, a support tube 40a having a circular cross section that can be fitted into the opening of the tip of the transmission housing 11 is continuously provided. On the other hand, the tip of the transmission shaft 3 supported by the shaft center portion of the transmission housing 11 is fitted into the holding plate 42 through the center of the ventilation plates 41, 41, and these are inserted from the outside of the turntable 40. It is attached and connected by a stop pin 44.
[0036]
By this attachment, the action part 4 rotates around the axis of the turntable 40 supported by the tip of the transmission housing 11 by fitting the support cylinder 40a in accordance with the transmission from the transmission shaft 3. As shown in FIG. 2, the distal end of the transmission shaft 3 has a rectangular cross section, and the distal end portion of such a rectangle is fitted into the holding plate 42 so that the aforementioned rotational transmission can be performed reliably. .
[0037]
Further, as shown in FIG. 2, the rectangular portion of the transmission shaft 3 is extended to reach the inner portion of the transmission housing 11, and this extension portion is provided with a stopper pin inserted and held from the outside in the middle portion of the transmission housing 11. The inner edge of 31 is facing. As shown in FIG. 1, the stopper pin 31 is held in a state where it protrudes to the outside of the transmission housing 11 for an appropriate length. By pushing this protrusion inward, the rectangular portion of the transmission shaft 3 is inserted from the outside. It is used as a means for pressing and stopping the rotation of the transmission shaft 3 and the operation of the action portion 4 caused by the transmission of the rotation.
[0038]
Further, the first housing 12 that houses the impeller 2 includes a brake pin 32 that is inserted and held from the outside, like the stopper pin 31. The inner end of the brake pin 32 faces the outer periphery of the support shaft 20 as the rotating shaft of the impeller 2, and the outer end is similarly projected to the outside of the first housing 12 by an appropriate length. This protrusion appears on the opposite side of FIG. 1, and the brake pin 32 is shown only in FIG.
[0039]
Like the stopper pin 31, the brake pin 32 as described above is pressed against the outer periphery of the support shaft 20 by pushing the protruding portion of the first housing 12 inward, and the rotation of the support shaft 20. And used to limit the action of the action part 4 caused by the transmission of this rotation. As shown in FIG. 2, the brake pin 32 is provided with a return spring 33 that urges the brake pin 32 outward, so that the pressing force is released when the brake pin 32 is pressed against the support shaft 20. When it is done, it is released by the spring force of the return spring 33.
[0040]
Since the pressing of the brake pin 32 as described above is performed with respect to the support shaft 20 having a circular cross section, the support shaft 20 is only limited in rotation by the pressing of the brake pin 32, and this limitation is It occurs only while the pushing force is applied to the brake pin 32. Such a brake pin 32 is used, for example, as a means for temporarily reducing the operating speed of the action unit 4 when changing a cleaning place while using the cleaning aid according to the present invention.
[0041]
The cleaning assisting tool according to the present invention configured as described above splits the ventilation inside the housing 1 into an action flow that flows inside the impeller 2 and a non-action flow that bypasses the inside of the impeller 2. Means 5 is provided, and speed control means 6 is provided for operating the diversion means 5 from the outside of the housing 1 to increase or decrease the rotational speed of the impeller 2.
[0042]
As shown in FIG. 2, the flow dividing means 5 is configured to include a fixed cylinder 50 and a movable cylinder 51 configured as described later, inside a second housing 13 that constitutes a half of the impeller housing 10. . The speed control means 6 includes a holding portion 60 provided outside the second housing 13 and having a rectangular section between the large-diameter portion in which the impeller 2 is accommodated and the joint cylinder 14, and the holding portion 60. And a slider 61 that slides in the axial direction in the portion 60.
[0043]
FIG. 3 is an external perspective view of the fixed cylinder 50 and the movable cylinder 51 constituting the flow dividing means 5, and FIGS. 4 and 5 are enlarged sectional views in the vicinity of the components of the flow dividing means 5.
[0044]
4 and 5 also show the support state of the impeller 2. As shown in these figures, the impeller 2 is constructed by arranging a plurality of blades in a circumferential direction between a pair of side plates having a disk shape arranged side by side in the axial direction. Further, it is configured as a known centrifugal impeller formed by forming a flow path that curves in the same direction between the outer peripheral portion and the central portion, and the impeller 2 is formed in the axial center portion as described above. The inserted support shaft 20 is supported in the first housing 12 and is circularly formed in the center of one side plate as shown in the large-diameter portion formed at the mating portion of the first housing 12 and the second housing 13. The outflow port opened as a result is attached toward the second housing 13 side.
[0045]
In addition, an inflow opening that is opened over the entire circumference is formed between the pair of side plates on the outer periphery of the impeller 2, and air flowing into the impeller 2 from the inflow opening The flow flows along the curve of the inner flow path, and this flow presses the blades in the same direction to rotate the impeller 2. Is transmitted to the transmission shaft 3.
[0046]
As shown in the figure, an annular rectifying ring 22 is wound around the outer periphery of the impeller 2 so as to block a part of the inlet, and the air flowing into the impeller 2 is operated by the rectifying ring 22. Then, the flow is once rectified into a flow in the axial direction, and then the flow is changed inward in the radial direction to flow into the inlet.
[0047]
As shown in FIG. 3, the fixed cylinder 50 constituting the flow dividing means 5 is a member having a short cylindrical shape, and includes four support legs 52, 52... Projecting radially outward from the outer surface thereof. ing. Also, on one side of the fixed cylinder 50, an insertion cylinder 53 which is slightly smaller in diameter than that and formed to have an outer diameter substantially equal to the outlet of the impeller 2 is integrally provided. The other end edge of the fixed cylinder 50 is a tapered edge 54 formed so as to gradually become smaller in diameter toward the end portion.
[0048]
The fixed cylinder 50 configured in this manner is screwed and supported coaxially inside the second housing 13 by screwing the ends of the support legs 52, 52... To the periphery of the large diameter portion of the second housing 13. As shown in FIGS. 4 and 5, when the second housing 13 is assembled to the first housing 12, the insertion tube 53 directed toward the first housing 12 is inserted into the outlet of the impeller 2. Thus, a continuous cylindrical air passage is formed inside the impeller 2 through the outlet.
[0049]
As shown in FIG. 3, the movable cylinder 51 that constitutes the diversion means together with the fixed cylinder 50 is a cylindrical body having substantially the same diameter as the fixed cylinder 50, and the cylindrical portion of the second housing 13 that is continuous with the joint cylinder 14. And is held in the cylindrical portion so as to be movable in the axial direction. One end edge of the movable cylinder 51 is a tapered edge 55 formed so as to gradually increase in diameter toward the end portion. As shown in FIG. In the state of being moved to the side of 50, it is closely aligned with the tapered edge 54 formed at the same side end portion of the fixed cylinder 50, and enters the inside of the impeller 2 through the fixed cylinder 50. A continuous air path is formed through the joint cylinder 14 to the intake pipe P (see FIG. 1) of the cleaner.
[0050]
FIG. 5 shows a state in which the movable cylinder 51 has moved away from the fixed cylinder 50. In this state, the taper edge 55 of the movable cylinder 51 is separated from the taper edge 54 of the fixed cylinder 50, and a gap that opens over the entire circumference is formed between them. The gap is formed in the large-diameter portion of the second housing 13 as shown in the figure. The gap forms a bypass passage that communicates the outside of the impeller 2 with the inside air passages of the fixed cylinder 50 and the movable cylinder 51. Form.
[0051]
As shown in FIGS. 2 and 3, the movable cylinder 51 is provided with extension portions 56, 56 that extend in the axial length direction at two locations facing each other in the radial direction over an appropriate width in the circumferential direction. Connection holes 57 and 57 (only one side is shown) for connecting the sliders 61 and 61 of the speed control means 6 are formed in the approximate center of the formation part of the extension parts 56 and 56.
[0052]
As shown in FIG. 1, the slider 61 is a rectangular block-shaped member, and is placed in a holding portion 60 formed by dividing the outer side of the second housing 13 holding the movable cylinder 51 into a rectangular shape. It is arranged. As shown in FIGS. 1 and 2, a guide hole in the form of a long hole extending in the axial direction of the second housing 13, that is, in the moving direction of the movable cylinder 51, is formed at the inner center of the holding portion 60. 62 is formed through the peripheral wall of the second housing 13, and as shown in FIG. 2, the slider 61 inserts a guide pin 63 penetrating through a substantially central portion into the guide hole 62, and the second The projecting end to the inside of the housing 13 is inserted into the connecting hole 57 so as to be integrally connected to the movable cylinder 51.
[0053]
With this configuration, the slider 61 can be slid in the extending direction of the guide hole 62 outside the second housing 13, and the movable cylinder 51 inside the second housing 13 can move the guide hole 62 in response to this operation. It is moved in the extending direction, that is, the axial length direction of the second housing 13, and the width of the bypass passage between the fixed cylinder 50 is increased or decreased as described above. Extension portions 56, 56 provided on the movable cylinder 51 block the inside of the guide hole 62 over the entire moving range of the movable cylinder 51, and prevent the outside air from entering the second housing 13. It has been established.
[0054]
As shown in FIGS. 1 and 2, an engagement recess cut into a concave shape at a predetermined interval is formed on the inner side of the side edge of the holding portion 60 in the axial direction of the second housing 13. Plate springs 64, 64 bent in a mountain shape are fixed to both side surfaces of the slider 61 facing the side edges, and these plate springs 64, 64 are It is engaged with the engagement recess.
[0055]
With this configuration, the sliding position of the slider 61 generated along the guide hole 62 and the moving position of the movable cylinder 51 that moves together with the slider 61 are set so that the leaf springs 64 and 64 attached to the slider 61 have the engagement recesses. The width of the bypass passage that is constrained separately at each engaging position and is formed between the movable cylinder 51 and the fixed cylinder 50 is changed step by step for each interval between the engagement recesses. Can do. The sliding operation of the slider 61 is achieved by the plate springs 64, 64 being deformed against elasticity and getting over the protrusions between the engaging recesses.
[0056]
The cleaning aid according to the present invention configured as described above includes the housing 1 formed by integrating the impeller housing 10 including the impeller 2 and the transmission housing 11 including the transmission shaft 3 as described above. The intake pipe P is connected to the end of the intake pipe P through a joint cylinder 14 connected to the end of the impeller housing 10, and the action portion 4 is attached to the front end opening of the transmission housing 11. It is used by driving a built-in fan of a cleaner body (not shown) connected to the other side. The housing 1 is continuous with the intake pipe P and forms an air passage communicating with the outside through hollow tapping tubes 43, 43... Planted in the action portion 4, and drives the fan. In this case, outside air is sucked from the tips of the tapping tubes 43, 43... And sucked into the intake pipe P through the inside of the housing 1.
[0057]
This intake air is introduced into the impeller 2 supported inside the impeller housing 10 from the outer inflow port, and flows through the inside of the impeller 2 inward, and is led out from the outflow port that opens to the center of one side. The impeller 2 rotates by the action of this ventilation. This rotation is transmitted to the transmission shaft 3 via the support shaft 20, the spur gear 21 and the spur gear 30 of the impeller 2, and the rotation of the transmission shaft 3 is transmitted to the action portion 4. Rotates with a large number of tapping tubes 43, 43,.
[0058]
Thus, when the tips of the tapping tubes 43, 43 ... rotating in this manner are brought into contact with a desired cleaning place, the dust around the tapping tubes acts to "beat" each tapping tube 43, 43 ... The main body of the vacuum cleaner (not shown) passes through the inside of the intake pipe P connected to the housing 1 and is sucked into the housing 1 together with the intake air generated at the ends of the tapping tubes 43, 43. And collected in a collection bag inside the main body.
[0059]
The operation of the action portion 4 as described above is caused by the rotation of the impeller 2 by the action of intake air that enters the impeller housing 10 through the transmission housing 11. As described above, the rotation of the impeller 2 is generated by the action of ventilation introduced from the inlet formed on the outer periphery, flowing inward through the impeller 2 and led out from the outlet opening at the center of one side. Then, the air vented from the impeller 2 is sucked into the intake pipe P through the inner air passages of the fixed cylinder 50 and the movable cylinder 51 continuous to the outlet.
[0060]
Here, as shown in FIG. 4, when the movable cylinder 51 is moved toward the fixed cylinder 50 and the taper edge 55 of the movable cylinder 51 is closely aligned with the taper edge 54 of the fixed cylinder 50, the blade The entire amount of the intake air inside the housing 1 is ventilated inside the wheel 2, and the impeller 2 rotates at a high speed with a large rotational force, and is high at the tip of the tapping tubes 43, 43. Even in a state where a load is applied, a stable “happing” operation can be performed.
[0061]
On the other hand, when the movable cylinder 51 is moved away from the fixed cylinder 50 by the operation of the speed adjusting means 6 performed from the outside of the housing 1, that is, the sliding position of the slider 61 is changed, FIG. As shown in FIG. 2, a bypass passage is formed between the tapered edge 55 of the movable cylinder 51 and the tapered edge 54 of the fixed cylinder 50, and in the bypass passage, the front of the impeller 2 is indicated by an arrow in the figure. Intake from the inside of the second housing 13 constituting the chamber occurs.
[0062]
In this state, the intake air into the housing 1 flows through the inside of the impeller 2 through the inner air passages of the fixed cylinder 50 and the movable cylinder 51, and acts on the impeller 2 as described above. The air is sucked into the bypass passage from the chamber and is divided into a non-acting flow that flows into the inner air passage of the movable cylinder 51 without acting on the impeller 2.
[0063]
At this time, only a part of the intake air inside the housing 1 is ventilated inside the impeller 2, and the rotational speed of the impeller 2 is lowered by the action of the aeration, and the impeller 2 is used as a drive source. The operation of the action unit 4, that is, the above-described “happing” operation by the hitting tubes 43, 43... Can be performed slowly at a low speed. Further, such a decrease in the operation speed is accompanied by a decrease in the rotational force of the impeller 2 due to a decrease in the working flow, so that the tapping by the tapping tubes 43, 43. It is made soft without applying a great force, and it is possible to perform an appropriate cleaning assisting operation according to the cleaning place.
[0064]
The operating speed of the action section 4 is changed in multiple steps by moving the movable cylinder 51 by sliding operation of the slider 61 constituting the speed adjusting means 6 and changing the opening width of the bypass passage with the fixed cylinder 50. Is done. The sliding position of the slider 61 is set by the sliding operation of the slider 61 because the leaf springs 64, 64 attached to the slider 61 are restrained by engaging with the engaging recess of the inner edge of the holding portion 60. The operating speed of the action unit 4 is maintained without fluctuation, and the above-described cleaning assisting operation can be stably performed.
[0065]
Further, the rectifying ring 22 is wound around the outer periphery of the impeller 2, and the rectifying ring 22 functions to rectify the ventilation before being introduced into the impeller 2 into an axial flow as described above. Therefore, when the bypass passage is in the open state as shown in FIG. 5, the intake air reaching the outer periphery of the impeller 2 is rectified by the action of the rectifying ring 22 and stably flows into the front chamber of the impeller 2. It is introduced into the movable cylinder 51 through the bypass passage. The bypass passage is formed as a passage inclined toward the movable cylinder 51 between the tapered edge 54 of the fixed cylinder 50 and the tapered edge 55 of the movable cylinder 51, as shown in FIG. The introduction of the non-working flow into the cylinder 51 is stably generated, and the non-working flow and the working flow are reliably separated.
[0066]
As described above, according to the cleaning aid of the present invention, the operation speed of the action portion 4 is stabilized in multiple stages by operating the diversion means 5 inside the housing 1 from the outside of the housing 1 by the speed adjusting means 6. It is possible to increase and decrease the efficiency, and to perform an efficient cleaning operation to collect dust while performing "whacking" to various cleaning places including places where they are easily damaged such as shoji and scissors. Can do. Since the non-acting flow that bypasses the impeller 2 is sucked into the intake pipe P through the inner air passage of the movable cylinder 52, the total amount of intake air from the tips of the tapping tubes 43, 43. It hardly changes regardless of the operation, and the dust collecting ability by this intake air does not decrease.
[0067]
As described above, an action portion that performs another cleaning assisting operation can be attached to the tip of the housing 1 in place of the action portion 4 that rotates to perform the “beating” action. For example, as disclosed in the aforementioned Japanese Patent Application No. 10-353544, it is possible to attach a brush that rotates to polish the surface of a working part, floor, tile, etc., that swings to make a `` beater '' action, What is necessary is just to replace | exchange sequentially and use according to the objective.
[0068]
【The invention's effect】
As described above in detail, in the cleaning auxiliary tool according to the first aspect of the present invention, the flow inside the housing, which is attached to the intake pipe of the cleaner and through which the entire amount of intake air flows to the intake pipe, By the diversion means operated by the means, When the speed control means is operated from the outside of the housing so that one side of the movable cylinder faces the other side of the fixed cylinder and the gap between the fixed cylinder and the movable cylinder is eliminated, the intake air to the intake pipe An air passage is formed so that the entire amount of the air flows through the inside of the impeller, and the speed control means is operated from the outside of the housing so as to be separated from the other side of the fixed tube and between the fixed tube and the movable tube. When a gap is formed in the air intake pipe, the intake air to the intake pipe can be divided and ventilated to an air passage formed between the air passage inside the impeller and the housing and the outside of the impeller. And The working flow passing through the inside of the impeller and the non-working flow bypassing the inside of the impeller can be divided to change the rotational speed of the impeller by increasing or decreasing the working flow in the impeller. for that reason, The rotational speed of the impeller can be freely changed without accompanying a change in rotational force, and the operating speed of the action part that operates by transmission from the impeller can be set appropriately according to the cleaning location. This makes it possible to perform the cleaning assisting operation in accordance with various cleaning locations without complicating the configuration of the action portion.
[0069]
Moreover, in the cleaning assistance tool which concerns on 2nd invention, A small-diameter gear is attached to the support shaft of the impeller of the centrifugal impeller, and the large-diameter gear is engaged, so that it can be connected so as to transmit the reduced speed rotation to the action part that is detachably attached to the front end opening of the housing. Since it is formed, it becomes possible to decelerate the operating speed of the action part that is operated by transmission from the impeller according to the cleaning place, and it is possible to perform the cleaning assisting action according to various cleaning places. . Also, A fixed cylinder and a movable cylinder are connected to the outlet opening on one side of the impeller, and the gap between the movable cylinder and the fixed cylinder that changes due to the axial movement of the movable cylinder is used as a non-acting flow path. Therefore, the shunting of the working flow and the non-working flow can be reliably performed with a simple configuration, and the appropriate setting according to the cleaning location of the rotational speed of the impeller and the operating speed of the working portion can be easily performed. It becomes possible.
[0070]
Moreover, in the cleaning assistance tool which concerns on 3rd invention, it equips the outer periphery of an impeller with the baffle ring which blocks a part of inflow port, and rectifies | straightens the intake air before inflow into an impeller by the effect | action of this baffle ring in an axial length direction Because of the configuration, the non-acting flow that bypasses the inside of the impeller is stabilized, and fluctuations in the rotational speed of the impeller and the operating speed of the action part under the speed adjustment due to the diversion are suppressed, so that stable cleaning assistance operation is achieved. Can be done.
[0071]
In the cleaning assisting tool according to the fourth aspect of the invention, the speed control means for operating the flow dividing means of the second or third aspect of the invention from the outside of the housing is slidably held outside the housing and can be restrained stepwise. Since the slider is configured to extend to the inside of the housing and connected to the movable cylinder, the diversion and speed adjustment by the movement of the movable cylinder can be reliably performed with a simple configuration, and good operability is realized. .
[0072]
Furthermore, in the cleaning assisting tool according to the fifth aspect of the invention, the restraint of the slider of the fourth aspect of the invention is realized by engaging the leaf spring fixedly held by the slider with the recess formed in the housing. The present invention has an excellent effect, for example, it is possible to reliably hold the result of the diversion and the speed adjustment by a simple configuration and to perform the cleaning assisting operation satisfactorily at an operation speed with little fluctuation.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a cleaning aid according to the present invention.
FIG. 2 is an exploded perspective view of a cleaning aid according to the present invention.
FIG. 3 is an external perspective view of a fixed cylinder and a movable cylinder constituting the flow dividing means.
FIG. 4 is an enlarged cross-sectional view of the vicinity of the constituent parts of the flow dividing means.
FIG. 5 is an enlarged cross-sectional view of the vicinity of the constituent parts of the flow dividing means.
[Explanation of symbols]
1 Housing
2 impeller
3 Transmission shaft
4 action parts
5 Dividing means
6 Speed control means
10 Impeller housing
11 Transmission housing
22 Rectifier ring
40 turntable
42 Retaining plate
43 slap tube
50 Fixed cylinder
51 Movable cylinder
61 Slider
P Intake pipe

Claims

A cylindrical housing that forms an air passage continuous with the intake pipe by being attached to the intake pipe of a vacuum cleaner; and an impeller that is supported by the inside of the housing and rotates by the action of air flowing through the air passage. A cleaning assisting tool that is detachably attached to the front end of the housing and has an action part that performs a cleaning assisting action by transmission from the impeller,
The impeller is a centrifugal impeller, and is supported by the cylindrical housing so as to form an air passage in the axial direction of the impeller. Formed in such a way that it can be diverted to a wind path formed between a path, the housing, and the outside of the impeller,
Distributing means including a fixed cylinder that forms a cylindrical air passage that is continuous with the outlet of the impeller and a movable cylinder so as to change the gap between the fixed cylinder and the axial movement in the axial direction. And a speed control means for adjusting the rotational speed of the impeller by operating the diversion means from the outside of the housing,
When the speed adjusting means is operated from the outside of the housing so that one side of the movable cylinder faces the other side of the fixed cylinder and the gap between the fixed cylinder and the movable cylinder is eliminated, Create an air passage so that the entire amount of intake air can flow inside the impeller,
When the speed control means is operated from the outside of the housing so as to be separated from the other side of the fixed cylinder to create a gap between the fixed cylinder and the movable cylinder, the intake air to the intake pipe is taken into the interior of the impeller The air flow path and the housing and the outside of the impeller are formed so as to be shunted and ventilated.
The ventilation of the air passage is divided into a working flow passing through the inside of the impeller and a non-working flow of the air passage formed between the housing and the outside of the impeller by bypassing the inside of the impeller. A cleaning aid that adjusts the rotational speed of the impeller by increasing or decreasing the working flow and the non-working flow that act on the rotation of the impeller.

The impeller is a centrifugal impeller having an inflow opening that opens radially outward in an outer peripheral portion, and an outflow opening that opens on one side in the axial length direction on an inner peripheral portion, and the support shaft of the impeller A small-diameter gear is attached and a large-diameter gear is engaged.
The diversion means is fixedly supported inside the housing with one side in contact with the outlet, and forms a cylindrical air passage continuous with the outlet, and on the other side of the fixed cylinder A movable cylinder that is supported inside the housing with one side facing, changes a gap with the fixed cylinder by movement in the axial length direction, and receives the non-acting flow in an inner air passage of the fixed cylinder The cleaning aid according to claim 1.

The cleaning auxiliary tool according to claim 1 or 2, further comprising a rectifying ring that is wound around an outer periphery of the impeller and closes a part of the inflow port.

The speed control means is slidably held on the outside of the housing, a slider connected to the movable cylinder with an inward extension of the housing, and a restraint for restraining the sliding position of the slider stepwise. A cleaning aid according to any one of claims 1 to 3, comprising means.

The cleaning assisting tool according to claim 4, wherein the restraining means includes a leaf spring fixed to the slider, and a recess formed in the housing and engaged with the leaf spring.