JP3594175B2 - Vacuum cleaner and its suction body - Google Patents

Vacuum cleaner and its suction body Download PDF

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JP3594175B2
JP3594175B2 JP16902899A JP16902899A JP3594175B2 JP 3594175 B2 JP3594175 B2 JP 3594175B2 JP 16902899 A JP16902899 A JP 16902899A JP 16902899 A JP16902899 A JP 16902899A JP 3594175 B2 JP3594175 B2 JP 3594175B2
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suction
suction port
cleaning
vacuum cleaner
case
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JP2000354567A (en
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篤至 森下
律雄 竹本
育弘 大津
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Toshiba TEC Corp
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Toshiba TEC Corp
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Description

【０００１】
【発明の属する技術分野】
本発明は、回転清掃体を回転駆動する駆動手段を備えた電気掃除機およびその吸込口体に関する。
【０００２】
【従来の技術】
従来、この種の電気掃除機の吸込口体としては、例えば特開平６−３０４１００号公報に記載の構成が知られている。
【０００３】
この特開平６−３０４１００号公報に記載の電気掃除機の吸込口体は、走行方向に対して横長のケース体内に下面に吸込口を開口する吸込室およびこの吸込室の一側に位置して駆動室をそれぞれ区画形成している。そして、吸込室内には、吸込口に臨んで回転清掃体が回転自在に配設され、駆動室内には回転清掃体の軸方向の一端に略同軸上に係脱可能に係合する出力軸を備え回転清掃体を回転駆動する電動機が配設されていて吸込口体の前後幅を小さくできる。
【０００４】
【発明が解決しようとする課題】
しかしながら、この特開平６−３０４１００号公報に記載の電気掃除機の吸込口体では、回転清掃体に対して略同軸上に電動機を配設しているため、電動機が位置するケース体の長手方向の一端側には吸込口を開口することができない。このことから、壁際を掃除する際に、吸込口から電動機が位置するケース体の一端までの距離が長くなり、電動機が位置する一端側からの吸込風量が少なくなることから、壁際の塵埃を吸塵できなくなるおそれがあるとともに、ケース体の下面の吸込口の負圧が増大し、ケース体が床面に吸い付いて走行性が損なわれるおそれがある。
【０００５】
このため、電動機が位置するケース体の一端側下面に下方に開口し吸込口に連通する凹溝状の吸込溝を形成することも考えられるが、回転清掃体と電動機とが同軸上に位置することから、電動機の下方にはスペースを大きくは設けられず吸込溝をあまり大きく形成できないため、吸込溝からの吸込風量も限られたものとなり、ある程度の吸塵効果が得られるもののケース体の床面への吸い付きはあまり解消されない問題がある。
【０００６】
本発明は、上記問題点に鑑みなされたもので、回転清掃体を回転駆動する駆動手段を備えた構成でもケース体が被掃除面に吸い付くことを防止するとともに吸塵効率が向上する電気掃除機およびその吸込口体を提供することを目的とする。
【０００７】
【課題を解決するための手段】
請求項１記載の電気掃除機の吸込口体は、被掃除面と対向する面に吸込口を開口した吸込室とこの吸込室の長手方向の一端側に形成された駆動室とを有するとともに前記吸込口に連通する吸気口を開口する横長矩形状のケース体と、前記吸込室内に回転可能に配設され、前記被掃除面の塵埃を掻き上げるとともに前記吸気口からの吸気流が吹き付けられる清掃部材を有する回転清掃体と、前記駆動室内に位置して前記回転清掃体と同軸上に設けられた電動モータを有し、この電動モータにより前記回転清掃体を回転させる駆動手段とを具備し、前記吸気口からの吸気により、前記ケース体下面の負圧の増大を抑制するとともに前記回転清掃体の回転を補助するものである。
【０００８】
そして、吸込口を開口した吸込室に回転清掃体を回転可能に配設するとともに、吸込室の長手方向の一端側に形成された駆動室に、回転清掃体を回転させる電動モータを同軸上に有する駆動手段を設けた横長矩形状のケース体に、吸込口に連通し回転清掃体の清掃部材に吸気流を吹き付ける吸気口を開口形成して、ケース体下面の負圧の増大を抑制するため、ケース体が被掃除面に吸い付くことを防止するとともに、吸気口からの吸気により回転清掃体の回転を補助するため、回転清掃体の清掃部材にて効率よく塵埃が掻き上げられて吸塵効率が向上する。
【０００９】
請求項２記載の電気掃除機の吸込口体は、請求項１記載の電気掃除機の吸込口体において、吸気口は、回転清掃体の軸方向に沿って複数設けられたものである。
【００１０】
そして、吸気口を回転清掃体の軸方向に沿って複数設けるため、回転清掃体の清掃部材に複数箇所で吸気流が吹き付けられ、回転清掃体の回転トルクが増大するとともに、回転清掃体の軸方向においてばらつきなく吸気流が吹き付けられて、安定した回転清掃体の回転が得られ、塵埃の掻き上げ効率が向上する。
【００１１】
請求項３記載の電気掃除機の吸込口体は、請求項１または２記載の電気掃除機の吸込口体において、ケース体の回転清掃体の軸方向の両端側の下面には、吸込口に連通する吸込溝が形成されたものである。
【００１２】
そして、ケース体の回転清掃体の軸方向の両端側下面に吸込口に連通する吸込溝を形成するため、駆動手段および回転清掃体を軸支する構成が位置して吸込口を開口できないケース体の両端側からでも吸塵できるとともに、ケース体の下面の負圧状態が略均一となって回転清掃体の清掃部材が全体的に被掃除面から塵埃を掻き上げるので、安定した回転清掃体の回転が得られ、塵埃の掻き上げ効率も向上する。
【００１３】
請求項４記載の電気掃除機の吸込口体は、請求項３記載の電気掃除機の吸込口体において、駆動手段が位置するケース体の長手方向の一側下面に形成する吸込溝は、他側下面に形成する吸込溝より風路面積が大きいものである。
【００１４】
そして、駆動手段が位置するケース体の長手方向の一側下面に開口する吸込溝の風路面積が他側下面に形成する吸込溝より大きいため、吸込口が開口しない面積が大きい長手方向の一側からの吸込量と吸込口が開口しない面積が小さい長手方向の他側からの吸込量とが略均一となり、安定して長手方向の両側から吸塵され、吸塵効率が向上する。
【００１５】
請求項５記載の電気掃除機は、掃除機本体と、この掃除機本体に接続される請求項１ないし４いずれか一記載の電気掃除機の吸込口体とを具備したものである。
【００１６】
そして、ケース体が被掃除面に吸い付くことを防止しつつ回転清掃体の回転を補助して吸塵効率が向上する請求項１ないし４いずれか一記載の電気掃除機の吸込口体を備えるため、掃除性が向上する。
【００１７】
【発明の実施の形態】
以下、本発明の実施の一形態を示す電気掃除機の構成を図面を参照して説明する。
【００１８】
図２４において、１は掃除機本体で、この掃除機本体１は、上面を開口した下部本体ケース２ａ、および、この下部本体ケース２ａの後部上面を閉塞する上部本体ケース２ｂが、前面を含む周縁にバンパ３を挟持して接合されて前側上面を開口した本体ケース２を有している。そして、掃除機本体１は、本体ケース２の前側上面を開閉自在に閉塞する蓋体４を回動自在に軸支している。
【００１９】
また、本体ケース２は、進行方向の前側下面に図示しない旋回自在の旋回輪が取り付けられ、本体ケース２の後側側面に大径の従動輪６が回転自在に設けられ、掃除機本体１は旋回輪と従動輪６とにて被掃除面である床面上を走行可能となっている。さらに、本体ケース２の上部には、上下方向に摺動可能なハンドル７が設けられている。
【００２０】
そして、掃除機本体１内には、図示しない電動送風機が収容される電動送風機室が後側に区画形成され、この電動送風機の吸込側に連通しかつ上方が開放して蓋体４にて開閉され集塵フィルタを収容する図示しない集塵室が前側に区画形成されている。さらに、掃除機本体１の前側には、集塵室に臨んで開口しホース８が着脱可能に接続される接続口９が形成されている。
【００２１】
また、ホース８は、可撓なホース本体１１と、このホース本体１１の一端に設けられ掃除機本体１の接続口９に着脱可能に差し込み接続される接続管１２と、ホース本体１１の他端に設けられ延長管１３を介して吸込口本体１４が接続される把持部１５とにて構成されている。そして、把持部１５には、電動送風機の駆動状態を設定操作する各種スイッチ１６，１６を有した操作手段１７が配設されている。
【００２２】
一方、吸込口本体１４は、図１ないし図８に示すように、前後方向である走行方向に対して横長で、アクリロニトリル−ブタジエン−スチレン（ＡＢＳ）樹脂などの合成樹脂製の上面を開口した下部ケース２１と、この下部ケース２１の上部に上面の開口を覆い同材質の下面を開口する上部ケース２２とが、下部ケース２１および上部ケース２２の前面を含む周面に沿って軟質部材の緩衝体２３を挟持して結合固定されて、後部略中央が後方に向けて突出する凸字状のケース体２４を備えている。
【００２３】
そして、下部ケース２１は上面に略垂直にリブ部２５を有し、ケース体２４はリブ部２５により横長矩形状の吸込部２６とこの吸込部２６の後部略中央に後方に一対突出する軸支部２７，２７とにて凸字状に形成されている。また、吸込部２６内には、リブ部２５により、前側に横長に位置し下部ケース２１の下面に吸込口３０が開口形成された吸込室３１と、この吸込室３１の後部略中央に連通して区画形成された風路室３２と、吸込室３１の長手方向の一端側に区画形成された駆動室３３と、風路室３２の駆動室３３側に一方の軸支部２７に亘って区画形成された回路室３４と、風路室３２の他側に他方の軸支部２７に亘って区画形成された床面検出室３５とが設けられている。そして、ケース体２４の吸込室３１の駆動室３３と反対側の端部下面は下方に向けて開口し、この開口に閉塞板３６が装着具３７にて着脱可能に取り付けられている。
【００２４】
さらに、下部ケース２１の下面には、駆動室３３の下面に位置してケース体２４の側方外部と吸込室３１とを連通する吸込溝としてのリーク口となる凹溝状の第１の連通凹部３８が設けられているとともに、吸込室３１の両端側後部に位置してケース体２４の後方外部と吸込室３１とを連通する吸込溝としてのリーク口となる凹溝状の第２の連通凹部３９が設けられている。
【００２５】
また、下部ケース２１の下面には、前側両端部に位置して側方に向けてブラシ毛４１が植設された掃除体としてのブラシ体４２が設けられている。さらに、下部ケース２１の下面には、駆動室３３の下面後部に位置して前方に向けて起毛が植設された布部材にて形成された掃除体としての清掃体４３が設けられている。
【００２６】
一方、上部ケース２２は、下部ケース２１の前側である吸込室３１の略上面を覆う断面略円弧状のケース蓋体４５と、このケース蓋体４５の上面後部縁を覆うように間隙を介して着脱可能に取り付けられる吸気蓋部４６と、下部ケース２１の後側を軸支部２７，２７に亘って覆うケース覆部４７とを備えている。そして、吸気蓋部４６の前面にはリーク口としての機能も有する吸気口４８が、ケース体２４の長手方向に沿って複数、例えば２箇所開口形成され、吸気口４８はケース蓋体４５との間隙が吸気風路４９となって吸込室３１に連通する。
【００２７】
さらに、ケース体２４には、下部ケース２１および上部ケース２２に後部略中央で軸支部２７，２７間に位置して挟持固定され風路室３２を区画する連結管部５１が設けられている。この連結管部５１は、図２、図３および図９ないし図１３に示すように、軸方向の一端側にラッパ状に拡開する吸込ラッパ部５２が設けられ、他端側に略円筒状の連結吸込管部５３が設けられた管状の吸込管部５４を有し、この吸込管部５４の略中間である吸込ラッパ部５２と連結吸込管部５３との間にフランジ状に突出し下部ケース２１および上部ケース２２に挟持される連結鍔部５５を設けている。そして、連結管部５１は、吸込管部５４の吸込ラッパ部５２が吸込室３１内に向けて開口するように吸込ラッパ部５２の周縁および連結鍔部５５が下部ケース２１および上部ケース２２に挟持されて取り付けられる。なお、吸込管部５４の吸込ラッパ部５２の外周、連結鍔部５５および下部ケース２１との間には、回路室３４と床面検出室３５とを連通し電線５７が配線される電線配線通路５８が区画形成される。
【００２８】
また、連結鍔部５５には、吸込管部５４の外周側に沿って円弧状にリード線６０が挿通される電線挿通孔６１が設けられている。なお、この電線挿通孔６１の縁は、リード線６０が接触してもリード線６０を損傷しないように面取り加工されている。また、吸込管部５４の連結吸込管部５３の外周面には、外方に突出する回転規制突部６２が突設されている。
【００２９】
そして、下部ケース２１の前部両端側には、従動前輪６５が回転自在に軸支された従動前輪室６６が形成されている。また、下部ケース２１の一対の軸支部２７，２７には、それぞれ従動後輪６７が回転自在に軸支された従動後輪室６８が形成されている。なお、従動後輪６７は、外周面に布などの柔軟部材やゴムなどの弾性部材である保護シート６９が設けられている。そして、ケース体２４は、従動前輪６５と従動後輪６７とにて被掃除面である床面上を走行可能になっている。
【００３０】
また、ケース体２４の後部中央には、一対の軸支部２７，２７間に位置して連通管７１が配設されている。この連通管７１は、ケース体２４に配設された連結管部５１の吸込管部５４の連結吸込管部５３に回転自在に嵌着される継手部７２と、一端を他端が上下方向に回動自在に継手部７２に軸支される連通管部７３とを備えている。
【００３１】
そして、連通管部７３は、図１４ないし図１７に示すように、一端側が屈曲する略円筒状の筒状部７４と、この筒状部７４の一端に設けられた連通回動部７５とにて構成されている。また、筒状部７４の屈曲する側の外周面には、軸方向に長手状のカバー部７６が内部に配線室７７を区画形成して図示しないねじなどにて取付固定されている。
【００３２】
一方、連通回動部７５は、筒状部７４の軸方向に対して直交方向である左右方向に軸方向を有する略半円筒状で筒状部７４の一端側に一体的に設けられた回動筒部８０と、この回動筒部８０内に一体に設けられ筒状部７４の内面から内面が拡開するようにラッパ状に形成されたラッパ部８１とを有し、回動筒部８０の内面からラッパ部８１の外面の空間部分に略放射状に補強リブ８２が一体に設けられている。そして、連通回動部７５には、補強リブ８２の中心位置、すなわち回動筒部８０の両端面位置に略同軸上に略円筒状の回転軸８４がそれぞれ一体に設けられている。さらに、連通回動部７５のラッパ部８１が拡開する上下縁近傍で回動筒部８０の軸方向に沿った縁には、外方に向けて壁状に突出する抜止爪部８５が突設されている。そして、回動筒部８０の外周面には、軸方向に沿って壁状で継手部７２に当接して回動規制される回動規制リブ８６が突設されている。
【００３３】
また、連通回動部７５には、筒状部７４が接続する基端位置に回動筒部８０とラッパ部８１との間の空間部分に連通する配線開口部８８が開口形成されているとともに、一方の回転軸６３、すなわち回路室側に位置する回転軸６３には、軸方向に亘って配線切込部８９が切欠形成されている。
【００３４】
さらに、連通管部７３には、カバー部７６に一体に設けられ筒状部７４の外周面の一部を覆い内部がカバー部７６内の配線室７７および回動筒部８０とラッパ部８１との間の空間部分に連通する配線経路室９１を区画形成する配線カバー部９２が配設される。この配線カバー部９２は、カバー部７６に一連に設けられ筒状部７４の外周面の一部を覆うカバー覆い部９３を有し、このカバー覆い部９３の一側縁には回動筒部８０の一端側、すなわち配線切込部８９が設けられた回転軸８４が位置する側を、回動筒部８０とラッパ部８１との間の空間部分を覆って閉塞する扇部９４が設けられている。さらに、扇部９４には、回転軸８４の外周曲率と同様に円弧状に突設されて回転軸８４の配線切込部８９に係合して閉塞する軸蓋部９５が設けられ、この軸蓋部９５が配線切込部８９に係合することにより回転軸８４は略円筒状に構成される。
【００３５】
また、配線カバー部９２に覆われる連通管部７３の外面には、凹溝状のリード線係合溝９６が設けられている。
【００３６】
そして、カバー部７６の連通回動部７５側の上面には、連通管部７３の軸方向を前後方向に沿って位置する状態で、水平方向に突出する一対の係止鍔部９７，９７が一対突設されている。これら係止鍔部９７，９７は、図２７および図２８に示すように、連通管部７３の軸方向を吸込口本体１４の下面である水平方向に沿って位置する状態で、ケース体２４の軸支部２７，２７の先端上面に設けられた引っ掛け爪部９８，９８にそれぞれ係合可能となっている。
【００３７】
さらに、連通管部７３には、軸方向を前後方向に沿って位置する状態で水平方向に沿った径方向の位置に、軸方向に沿った壁状の係止爪部９９が一対突設されている。そして、これら係止爪部９９，９９は、図２５および図２６に示すように、連通管部７３をケース体２４の長手方向に沿って位置する状態で、ケース体２４の軸支部２７，２７の先端上面に設けられた引っ掛け爪部９８にそれぞれ係合可能となっている。
【００３８】
一方、継手部７２は、連結管部５１の吸込管部５４を嵌合して回転自在に保持される風路管部としての内管部１０１ およびこの内管部１０１ に同軸上に径大の接続管部としての外管部１０２ を有し、内管部１０１ および外管部１０２ の間に間隙１０３ を有した二重管部１０４ と、この二重管部１０４ の一端縁半周に略半球状に突設された上継手部１０５ と、この上継手部１０５ の下面を覆ってねじ止めなどにより一体的に取り付けられる略半球状の下継手部１０６ とにて構成されている。そして、内管部１０１ の内面には、略半周に亘って壁状に突出し端部に連結管部５１の回転規制突部６２が当接する回転規制リブ１０８ が突設され、連結管部５１に対して継手部７２が略１８０°の角度範囲で回動自在に軸支される。
【００３９】
さらに、上継手部１０５ および下継手部１０６ には、それぞれ対向して先端部が接合する上下方向に壁状に突設された略平行に一対の区画リブ１１０ ，１１０ がそれぞれ設けられ、これら区画リブ１１０ ，１１０ にて連通管部７３の連通回動部７５を収容する風路空間部１１１ と、この風路空間部１１１ の左右方向にそれぞれ区画形成された一対の内室１１２ ，１１２ とが区画形成されている。また、区画リブ１１０ ，１１０ には、接合する縁に略半円状に切欠部１１４ ，１１４ が対向してそれぞれ切り欠き形成され、これら切欠部１１４ ，１１４ にて連通管部７３の回転軸８４，８４をそれぞれ回転自在に軸支する略円形の軸受孔１１５ ，１１５ を構成する。
【００４０】
そして、配線切込部８９が設けられた回転軸８４を軸支する軸受孔１１５ 側の内室１１２ には、二重管部１０４ の間隙１０３ に連通する連通挿通孔１１７ が設けられている。また、この連通挿通孔１１７ が設けられた側の区画リブ１１０ には、切欠部１１４ の一部が切り欠かれて内室１１２ と風路空間部１１１ とを連通する連通切欠部１１８ が設けられている。そして、カバー部７６内の配線室７７は、配線カバー部９２内の配線経路室９１、配線開口部８８、回動筒部８０とラッパ部８１との間の空間部分、配線切込部８９、回転軸８４の内周、連通切欠部１１８ 、内室１１２ 、連通挿通孔１１７ 、二重管部１０４ の間隙１０３ 、連結管部５１の電線挿通孔６１を介してケース体２４内の回路室３４に連通する。
【００４１】
また、上継手部１０５ および下継手部１０６ には、風路空間部１１１ に位置する部分で対向する位置に略コ字状に切欠形成された上切欠部１２０ および連通管部７３の回動規制リブ８６が当接する下切欠部１２１ がそれぞれ設けられ、これら上切欠部１２０ および下切欠部１２１ により連通管部７３が上下方向へ回動するための逃げ部分となっている。
【００４２】
そして、連通管７１には、一端に連通管部７３のカバー部７６から先端部分が突出して配設され延長管１３の端部に設けられた図示しないコネクタに接続される端子ピン１２５ が設けられたリード線６０が、他端側を配線室７７内から配線カバー部９２内の配線経路室９１、配線開口部８８、回動筒部８０とラッパ部８１との間の空間部分、配線切込部８９、回転軸８４の内周、連通切欠部１１８ 、内室１１２ 、連通挿通孔１１７ 、二重管部１０４ の間隙１０３ 、連結管部５１の電線挿通孔６１を介してケース体２４内の回路室３４内に配設されている。なお、連通管７１は、連通管部７３の筒状部７４が延長管１３およびホース８を介して掃除機本体１に着脱自在に接続され、吸込口３０が掃除機本体１の接続口９に連通する。
【００４３】
さらに、ケース体２４内には、吸込室３１の左右方向の両端部に位置して設けられた図示しない軸受により回転自在に軸支された回転体としての回転清掃体１３０ が配設されている。この回転清掃体１３０ は、シャフト１３１ と、このシャフト１３１ の一端部に回転自在に設けられ軸受に係脱可能に装着される軸支部材１３２ と、シャフト１３１ の他端部に一体的に設けられたプーリ１３３ と、シャフト１３１ に螺旋状に設けられた凹溝状のブレード取付溝１３４ 、このブレード取付溝１３４ に一縁が取り付けられシャフト１３１ の外周面に壁状でスパイラル状に設けられ、先端側が一側に湾曲した清掃部材としてのブレード１３５ および一面側である回転清掃体１３０ が回転する方向の面に起毛が設けられた布ブレード１３６ を有したブレード部１３７ とを備えている。なお、図１、図２、図６および図７は、説明の都合上ブレード１３５ および布ブレード１３６ を直線状に示した。また、ブレード１３５ の先端縁には、湾曲する方向と反対側に膨出して肉厚となる叩き部１３８ が設けられている。
【００４４】
そして、回転清掃体１３０ は、吸込口３０に臨んで下端が従動前輪６５および従動後輪６７にて形成される平面より上方に位置し、平坦な床面である板の間には接触せず吸込口３０に入り込む凹凸のある床面である絨毯にはブレード１３５ が接触し、布ブレード１３６ は従動前輪６５および従動後輪６７にて形成される平面より下方に位置し、板の間に接触してフローリングするように配設される。
【００４５】
さらに、回転清掃体１３０ の駆動室３３側に位置する一端に設けられたプーリ１３３ は、図１８および図１９に示すように、略円盤状の円盤部１４０ の外周縁に一面側に略円筒状に筒状部である係合筒部１４１ が設けられ、係合筒部１４１ が突出する一面に放射状で係合筒部１４１ の内周面から所定の距離を介して突出する係合カム１４２ が複数設けられている。また、円盤部１４０ の他面側には、回転清掃体１３０ のシャフト１３１ に一体的に嵌着する取付筒状部１４３ が設けられ、プーリ１３３ は回転清掃体１３０ の一端に一体的に設けられている。そして、プーリ１３３ には、係脱可能に係合しプーリ１３３ とにて駆動伝達体１４４ を構成する出力プーリ１４５ が設けられている。
【００４６】
また、ケース体２４の駆動室３３内には、図２０ないし図２３に示すように、回転清掃体１３０ を回転させる駆動手段１４７ が設けられている。この駆動手段１４７ は、モータケース１４８ と、このモータケース１４８ に収容された電動モータ１４９ とを備えている。
【００４７】
そして、モータケース１４８ は、電動モータ１４９ を嵌合収容する略円筒状で電動モータ１４９ に給電する給電線１５０ を挿通する電線挿通窓部１５１ を開口するモータ保持部１５２ と、このモータ保持部１５２ の一端縁に略同軸上に径小で略円筒状に突設され出力プーリ１４５ を収容するとともに先端部がプーリ１３３ の係合筒部１４１ 内に接触することなく互いに回転自在に嵌挿する筒状部としてのプーリ保持部１５３ とを有している。さらに、プーリ保持部１５３ の外周面には、鍔状に突出する抜止め鍔部１５４ａが設けられ、この抜止め鍔部１５４ａとモータ保持部１５２ との段差部１５４ｂとの間に下部ケース２１および上部ケース２２のリブ部２５が係合する。また、モータ保持部１５２ の外周面には、抜止め鍔部１５４ａと段差部１５４ｂとの間に位置して、径方向に位置して突出する一対の回転止め爪部１５４ｃが設けられている。この回転止め爪部１５４ｃが下部ケース２１および上部ケース２２のリブ部２５，２５の接合部分に挟持され、モータケース１４８ は回転不可能にケース体２４内に配設される。
【００４８】
また、電動モータ１４９ は出力軸１５５ を備え、出力軸１５５ がプーリ保持部１５３ 側に突出して電動モータ１４９ がモータ保持部１５２ に配設される。そして、出力軸１５５ の先端部には、略角柱状のカム部１５６ が設けられている。
【００４９】
一方、出力プーリ１４５ は、モータケース１４８ のプーリ保持部１５３ に嵌挿可能な略円板状の円板部１５８ の一面側に内周面が略角筒状で一面側に向けて開口して電動モータ１４９ の出力軸１５５ を覆って収容する連結筒状部１５９ が設けられている。この連結筒状部１５９ の内周面の対向する面の距離は、電動モータ１４９ のカム部１５６ の対角線上の寸法より短く形成され、出力軸１５５ と回転清掃体１３０ とが周方向で所定の角度範囲で互いに回転自在となるクリアランスを設けている。そして、この連結筒状部１５９ の外周面にはモータケース１４８ のプーリ保持部１５３ 内に嵌着固定されるベアリング１６０ が嵌着固定され、出力プーリ１４５ はベアリング１６０ にてプーリ保持部１５３ 内に回転自在に配設される。なお、出力プーリ１４５ がモータケース１４８ に配設された状態では、電動モータ１４９ の出力軸１５５ の先端と出力プーリ１４５ との軸方向に沿った間には、間隙が設けられ、出力軸１５５ と回転清掃体１３０ とが相対的に軸方向に摺動可能となるように、出力軸１５５ のカム部１５６ と回転清掃体１３０ のプーリ１３３ に係合する出力プーリ１４５ とが間隙の寸法分のクリアランスを介して係合されている。
【００５０】
また、出力プーリ１４５ の他面には、回転清掃体１３０ のプーリ１３３ の係合カム１４２ 間に係合するカム爪部１６１ が放射状に複数突設されている。
一方、ケース体２４の回路室３４内には、電動モータ１４９ を給電線１５０ にて接続して電動モータ１４９ の駆動状態を制御する図示しない制御回路を搭載しリード線６０および電線５７が接続される回路基板１６３ が配設されている。そして、この回路室３４が、リード線６０の弛み分を収容するリード線収容室となる。なお、弛むリード線６０が位置する部分にはリード線６０が引っ掛かる突起などがないようにする。すなわち、例えば回路基板１６３ に取り付けられる電気部品は、プリント基板の一面側にのみ設け、この一面側を下方に向けて配設するようにし、回路基板１６３ の上面には電気部品のリード線や半田付け部分などが突出しないようにするとよい。
【００５１】
また、床面検出室３５内には、回路基板１６３ に電線配線通路５８を介して配線した電線５７にて接続される床面検知手段１６５ が配設されている。この床面検知手段１６５ は、回転自在の車輪１６６ を有し軸部材１６７ にて車輪を軸支する側を回動自在に軸支される車輪受け１６８ と、この車輪受け１６８ を常時下方に付勢してケース体２４の下面から車輪１６６ を進退可能に突出させるトーションばねや板ばねなどの図示しない付勢手段と、車輪１６６ の下端が所定位置、例えば従動前輪６５および従動後輪６７にて形成される平面より下方に突出したことを検知する検知スイッチ１６９ とを備えている。そして、床面検知手段１６５ は、車輪１６６ の下端が従動前輪６５および従動後輪６７にて形成される平面より下方に突出したことを検知スイッチ１６９ にて検知すると、回路基板１６３ の制御回路にて電動モータ１４９ の駆動を停止させる制御をする。
【００５２】
さらに、上部ケース２２の吸気蓋部４６の駆動室３３側の端部には、電動モータ１４９ が駆動している際に点灯する回路基板１６３ に接続された図示しない発光ダイオードなどの点灯部材が臨む表示窓部１７０ が設けられている。
【００５３】
次に、上記実施の形態の動作について説明する。
【００５４】
掃除を行う際、掃除機本体１に延長管１３およびホース８を介して吸込口本体１４を接続する。この接続により、吸込口本体１４の端子ピン１２５ が延長管１３の図示しないコネクタに接続され、吸込口本体１４内の電動モータ１４９ が、給電線１５０ 、回路基板１６３ 、リード線６０、延長管１３およびホース８に設けられた図示しない電源線を介して掃除機本体１に電気的に接続されて、電源が供給される。この状態で、ホース８の把持部１５を持って操作手段１７のスイッチ１６の操作により、適宜電動送風機を所望の駆動状態で駆動させるとともに電動モータ１４９ を駆動させる。この電動モータ１４９ の駆動の際、上部ケース２２の表示窓部１７０ を介して点灯部材の点灯が認識され、電動モータ１４９ が駆動していることを表示する。
【００５５】
この電動送風機の駆動により、電動送風機の負圧側に連通する吸込室３１内が負圧となって吸気口４８から吸気され、この吸気された吸気流が回転清掃体１３０ のブレード１３５ および布ブレード１３６ に当たって回転清掃体１３０ を回転させる。この吸気流は、回転清掃体１３０ のブレード１３５ および布ブレード１３６ に略垂直に吹き付けられた後、回転清掃体１３０ の軸方向に沿うようにケース体２４の中心の風路室３２に向けて集まるように回転清掃体１３０ の回転に長い距離で作用して回転トルクを増大させつつ連通管７１に流れる。また、電動モータ１４９ の駆動により、出力軸１５５ がカム部１５６ とともに回転し、カム部１５６ の角部分が出力プーリ１４５ の連結筒状部１５９ の内面に当接して出力プーリ１４５ が回転し、連結するプーリ１３３ を介して回転清掃体１３０ が回転する。このように、吸気流による回転と電動モータ１４９ の駆動による回転とにて、回転清掃体１３０ は大きなトルクで回転する。
【００５６】
そして、ホース８の把持部１５を押動して吸込口本体１４を床面上で前後に走行させる。なお、床面上を吸込口本体１４が走行する際には、連通管７１の軸方向は吸込口本体１４の走行方向である前後方向に沿った状態である第１の掃除形態となる。
【００５７】
この吸込口本体１４の床面上での走行により、床面が絨毯などの場合、回転する回転清掃体１３０ のブレード１３５ の叩き部１３８ が床面に衝突して塵埃を叩き出すとともにブレード１３５ が掻き出しあるいは掃き取りして掻き取り、塵埃を吸込口３０から吸い込む。また、床面が板の間や畳などの比較的に平坦な場合、回転する回転清掃体１３０ の布ブレード１３６ が床面を磨きつつ床面上の塵埃を掃き取り、吸込口３０から吸い込む。さらに、吸込口３０が開口しないケース体２４の下面の位置では、ブラシ体４２および清掃体４３が床面から塵埃を掻き出しあるいは掃き取りして掻き取る。なお、清掃体４３は、起毛が前進方向に向けて植設されているので、ホース８の把持部１５を持って吸込口本体１４を押動して前進させる際、起毛が逆毛となって塵埃を効率よく掻き出す。また、吸込口本体１４の後退時には、吸込口本体１４が持ち上げられるような力が作用するので、清掃体４３が床面を磨くように塵埃を掃き取る。
【００５８】
また、吸込口本体１４の側方、特に駆動室３３により吸込口３０までの距離が長くなる一側の塵埃は第１の連通凹部３８を介して吸込口３０に吸い込まれる。さらに、ブラシ体４２および清掃体４３にてこれらの間が吸込口３０に連通する風路となり、駆動手段１４７ が位置する部分でも負圧が増大し、一側からでも効率よく吸塵される。
【００５９】
そして、空気とともに吸い込んだ塵埃は、延長管１３およびホース８を介して掃除機本体１の集塵室に流入して捕捉する。
【００６０】
一方、家具の間などの比較的狭い隙間を掃除、すなわち横長の吸込口本体１４が走行できない幅寸法の床面を掃除する場合には、図２５および図２６に示すように、連通管７１の軸方向が吸込口本体１４の長手方向に沿うように連通管７１を回動し、連通管７１の係止爪部９９をケース体２４の引っ掛け爪部９８に係合させて連通管７１の回動を規制して吸込口本体１４を長手方向が走行方向となるように掃除形態を可変して第２の掃除形態にする。そして、この状態で家具の間などの隙間部分に吸込口本体１４を滑り込ませるようにして掃除する。
【００６１】
また、家具の下などの比較的高さが低い場所を掃除、すなわちケース体２４の高さ寸法より高くケース体２４は入り込めるが連通管７１や延長管１３がぶつかってしまう場所を掃除する場合、図２７および図２８に示すように、連通管７１の軸方向が吸込口本体１４の下面である水平方向に沿うように連通管７１を回動し、連通管７１の係止鍔部９７をケース体２４の引っ掛け爪部９８に係合させて連通管７１の回動を規制して掃除形態を可変して第３の掃除形態にする。そして、この状態で家具の下などの隙間部分に吸込口本体１４を滑り込ませるようにして掃除する。
【００６２】
なお、掃除形態を第１の掃除形態から第２の掃除形態あるいは第３の掃除形態に可変する際、リード線６０を挿通する連結管部５１の電線挿通孔６１と継手部７２の連通挿通孔１１７ とが対向しなくなり、電線挿通孔６１および連通挿通孔１１７ 間の距離が長くなる。この距離が長くなる分のリード線６０が、回路室３４から引き出されるように移動し、リード線６０が断線することはない。また、再び掃除形態が第１の掃除形態に可変する場合には、電線挿通孔６１および連通挿通孔１１７ が対向してこれらの距離が短くなり、リード線６０の余剰分はリード線６０自体の剛性により再び回路室３４内に収容される。
【００６３】
そして、掃除の中断によりホース８を床面上においた場合、あるいは吸込口３０に閉塞した塵埃の除去、回転清掃体１３０ に絡み付いた糸ゴミなどの除去のために、吸込口本体１４の下面が床面から離間すると、床面検知手段１６５ が付勢手段の付勢により車輪１６６ が所定位置より突出、すなわち従動前輪６５および従動後輪６７にて形成される平面より下方に突出したことを検知スイッチ１６９ にて検知して床面を検知しなくなると、回路基板１６３ の制御回路が吸込口本体１４の下面が床面から離間して床面を検知しないと判断して電動モータ１４９ の駆動を停止させる。そして、吸込口本体１４の下面が床面から離間することにより吸込室３１内の負圧も小さくなり、吸気口４８からの吸気量も低減する。この電動モータ１４９ の駆動停止および吸気量の低減により、回転清掃体１３０ の回転は停止する。
【００６４】
上述したように、回転清掃体１３０ および回転清掃体１３０ に略同軸上に出力軸１５５ が係合して回転させる駆動手段１４７ の電動モータ１４９ を収容する横長矩形状のケース体２４に、吸込口３０に連通し回転清掃体１３０ のブレード１３５ に吸気流を吹き付ける吸気口４８を開口形成するため、吸気口４８からの吸気によりケース体２４の下面の負圧の増大が抑制されてケース体２４が被掃除面である床面に吸い付くことを防止できるとともに、吸気口４８からの吸気流により回転清掃体１３０ の回転が補助され、回転清掃体１３０ のブレード１３５ にて効率よく塵埃を掻き上げでき、吸塵効率を向上できる。
【００６５】
そして、吸気流により回転清掃体１３０ が回転補助されることから、電動モータ１４９ を軽量小型化でき、吸込口本体１４を軽量小型化できる。
【００６６】
また、吸気口４８を回転清掃体１３０ の軸方向に沿って複数、例えば２カ所設けたため、回転清掃体１３０ のブレード１３５ に複数、すなわち２箇所で吸気流を吹き付けでき、回転清掃体１３０ の回転トルクを増大できるとともに、回転清掃体１３０ の軸方向においてばらつきなく吸気流を吹き付けでき、安定した回転清掃体１３０ の回転が得られ、塵埃の掻き上げ効率を向上できる。
【００６７】
さらに、ケース体２４の回転清掃体１３０ の軸方向の両端側下面に吸込口３０に連通する第１の連通凹部３８および第２の連通凹部３９を設けたため、駆動手段１４７ および回転清掃体１３０ を軸支する構成である軸支部材１３２ 、駆動伝達体１４４ が位置して吸込口３０を開口できないケース体２４の両端側からでも吸塵できるとともに、ケース体２４の下面の負圧状態が略均一となって回転清掃体１３０ のブレード１３５ が全体的に床面から塵埃を掻き上げできるので、安定して回転清掃体１３０ を回転でき、塵埃の掻き上げ効率も向上できる。
【００６８】
そしてさらに、第１の連通凹部３８は、駆動手段１４７ が位置する一側のみに設け、駆動手段１４７ が位置するケース体２４の長手方向の一側下面に開口する第１の連通凹部３８および第２の連通凹部３９の全開口面積を、他側下面に開口する第２の連通凹部３９の開口面積より大きくしたため、吸込口３０が開口しない面積が大きく吸込口３０から遠くなる長手方向の一側からの吸込量と、吸込口３０が開口しない面積が小さく吸込口３０からの距離が比較的短い長手方向の他側からの吸込量とを略均一にでき、安定して長手方向の両側から吸塵でき、吸塵効率を向上できる。
【００６９】
さらに、回転清掃体１３０ に略同軸上に係合して回転させる回転可能な出力軸１５５ を有する電動モータ１４９ を備えた駆動手段１４７ が配設されるケース体２４の長手方向の一側の下面にブラシ体４２および清掃体４３を設けるため、吸込口３０からの距離が遠くなる駆動手段１４７ が配設されるケース体２４の長手方向の一側の下面でも、塵埃がブラシ体４２および清掃体４３にて掻き取られて効率よく吸塵できる。
【００７０】
そして、駆動手段１４７ が配設される位置に対してケース体２４の走行方向の前側下面にブラシ体４２を設け、駆動手段１４７ が配設される位置に対してケース体２４の走行方向の後側下面に清掃体４３を設けるため、ブラシ体４２および清掃体４３間で風路が形成され、駆動手段１４７ が配設されるケース体２４の長手方向の一側の下面の負圧を増大でき、ブラシ体４２および清掃体４３による塵埃の掻き取り効果に加えて負圧の増大により、吸塵効率を向上できる。
【００７１】
さらに、ブラシ体４２による塵埃の掻き取りおよび掃き取りと、清掃体４３による塵埃の掻き取りおよび拭き取りが得られ、掃除性を向上できるとともに、清掃体４３の起毛をケース体２４の前進方向に向けて植設するため、ケース体２４の前進時に加わる床面に押し付けられる力により塵埃を効率よく掻き取りでき、後退時に吸込口本体１４が持ち上げられるように作用する力により床面を磨くように塵埃を効率よく掃き取りでき、走行性も向上でき、掃除性を向上できる。
【００７２】
そして、駆動手段１４７ の電動モータ１４９ の出力軸１５５ を回転清掃体１３０ の軸方向の一端に間隙を介して対向させ、出力軸１５５ と回転清掃体１３０ とが相対的に軸方向に摺動可能となるように、出力軸１５５ のカム部１５６ と回転清掃体１３０ のプーリ１３３ に係合する出力プーリ１４５ とが周方向に係合されて出力軸１５５ の回転を回転清掃体１３０ に伝達させるため、例えば第２の掃除形態あるいは第３の掃除形態で掃除の際に回転清掃体１３０ が軸方向に移動する力が作用しても、出力軸１５５ には直接力が作用せず、出力プーリ１４５ を保持しケース体２４に取り付けられるモータケース１４８ に分散するので、出力軸１５５ を介して駆動手段１４７ の電動モータ１４９ に負荷が掛かることを防止でき、駆動手段１４７ の電動モータ１４９ の損傷を防止できる。
【００７３】
また、駆動手段１４７ の電動モータ１４９ の出力軸１５５ と回転清掃体１３０ のプーリ１３３ に係合する出力プーリ１４５ とは、所定の角度範囲で周方向に互いに回転自在に係合するため、掃除の際に回転清掃体１３０ が床面から受ける負荷が出力軸１５５ を介して駆動手段１４７ の電動モータ１４９ に伝達することを抑制でき、駆動手段１４７ の電動モータ１４９ の損傷を防止できる。
【００７４】
さらに、回転清掃体１３０ に着脱可能に係合するとともに駆動手段１４７ の電動モータ１４９ の出力軸１５５ を覆って係合する出力プーリ１４５ を設けたため、駆動手段１４７ の電動モータ１４９ の駆動を回転清掃体１３０ に伝達するためのプーリ１３３ と出力軸１５５ との芯出しが容易で、回転清掃体１３０ をケース体２４内に回転自在に組み付ける作業が容易にでき、組立製造性を向上できるとともに、例えば糸ゴミなどの塵埃が絡み付いても回転清掃体１３０ を取り外すのみで容易に除去でき、保守管理性を向上できる。
【００７５】
また、回転清掃体１３０ および駆動手段１４７ に径方向で互いに重なり合って互いに回転自在に嵌挿する係合筒部１４１ およびプーリ保持部１５３ をそれぞれ設けたため、例えば糸ゴミなどの塵埃が回転清掃体１３０ および駆動手段１４７ との係合部分に絡み付きにくくなり、安定した回転清掃体１３０ の回転が得られるとともに、絡み付く糸ゴミなどの塵埃の除去作業を低減でき、保守管理性を向上できる。
【００７６】
そして、軸方向がケース体２４の前後方向に沿う位置の第１の掃除形態と長手方向に沿う位置の第２の掃除形態あるいは第３の掃除形態との異なる掃除形態に選択可能で軸方向を回転中心として半回転以下の角度範囲で回動自在に軸支される連通管７１のケース体２４に回転自在に軸支される外管部１０２ と、この外管部１０２ に略同軸上に設けられ吸込口３０に連通する内管部１０１ との間の間隙１０３ にリード線６０を挿通し、駆動手段１４７ の電動モータ１４９ に電気的に接続するため、異なる掃除形態に可変可能に回動自在に連通管７１を軸支する構成でも、外管部１０２ および内管部１０１ の二重管構造の間にリード線６０を挿通する簡単な構造で、連通管７１の回動によりリード線６０が巻き付いて断線したりねじ切れるなどの損傷を生じることなく、吸込口３０から吸い込んだ空気の流通に影響せず、駆動手段１４７ に安定して給電できる。
【００７７】
また、リード線６０が接続される回路基板１６３ が配設されるケース体２４内の回路室３４を弛むリード線６０を収容するリード線収容室としたため、例えばリード線収納室を連通管７１に設けることにより連通管７１が大型化して、連通管７１の回動性が損なわれることを防止でき、連通管７１を回動して掃除形態を可変する動作が容易にでき、掃除作業性を向上できる。
【００７８】
なお、上記実施の形態において、キャニスタ型の電気掃除機に限らず、吸込口本体１４が掃除機本体１の下面に直接形成されたアップライト型、その他、掃除機本体１と吸込口本体１４とが一体化された自走式の電気掃除機などにも適用することができる。
【００７９】
また、継手部７２および連通管部７３にて連通管７１を構成して説明したが、例えばケース体２４に上下方向に回動可能に設けた連通管部７３に、延長管１３が接続される継手部７２を回転可能に連結して連通管７１を構成するなど、軸方向がケース体２４の前後方向に沿う位置と長手方向に沿う位置とに選択可能に回動自在のいずれの構成でもできる。
【００８０】
なお、ケース体２４に略円筒状の連結管部５１を設けるとともに、この連結管部５１に回転自在に嵌合する二重管部１０４ を有した継手部７２に一端を他端が上下方向に回動自在に連通管部７３を設けて連通管７１を軸方向がケース体２４の前後方向に沿う位置と長手方向に沿う位置とに選択可能に構成したため、継手部７２に連通管部７３を回動軸支するために内室１１２ ，１１２ が形成され、この内室１１２ ，１１２ を利用して弛み分を収容する構成とすることにより、別途リード線６０を収容する空間を設ける必要がなく、小型化が図れる。
【００８１】
また、回転清掃体１３０ を回転駆動させたが、例えば回転清掃体１３０ とともに走行輪を回転駆動させて吸込口本体１４の走行性を向上させる構成としてもよい。さらに、回転清掃体１３０ としては、１つに限らず複数回転駆動させてもよく、ブレード１３５ の他に、起毛を壁状に設けた回転ブラシや、布ブレード１３６ を設けたもの、ブラシや布ブレード１３６ 、ブレード１３５ を組み合わせたいずれの清掃部材を備えたものでもよい。
【００８２】
さらに、電動モータ１４９ の駆動を回転清掃体１３０ に伝達する構成としては、出力軸１５５ と軸方向で間隙を介して摺動可能でかつ周方向に係合して回転を伝達可能な構成であれば、いずれの構成でもよい。
【００８３】
そしてさらに、回転清掃体１３０ は逆方向に回転する構成としてもよく、また、吸込口本体１４の走行方向に対応して回転方向を切り換え可能としてもよい。
【００８４】
また、出力プーリ１４５ を用いたが、直接回転清掃体１３０ のプーリ１３３ を出力軸１５５ に軸方向で間隙を介して摺動可能でかつ周方向に係合させてもよい。
【００８５】
そして、連通管７１のケース体２４に対して１８０°以下の角度に回転規制する構成としては、例えば連通管７１が回動することにより軸支部２７に当接して回転規制される構成など、いずれの構成により回転規制してもよい。
【００８６】
また、内管部１０１ と外管部１０２ とを略同軸上に設けた二重管構造にて説明したが、内管部１０１ の中心軸が外管部１０２ の中心軸から変位する二重管構造、内管部１０１ の中心軸が外管部１０２ の中心軸と平行でない二重管構造など、外管部１０２ の内周面と内管部１０１ の外周面との間に間隙１０３ を形成するいずれの二重管構造でもよい。
【００８７】
さらに、余剰のリード線６０を回路室３４に収容して説明したが、風路室３２を介して回路室３４と反対側の床面検出室３５に収容するリード線収容室を区画形成するなど、ケース体２４のいずれの位置に弛むリード線６０を収容してもよい。なお、上記実施の形態のように、ケース体２４内に収容する構成によれば、連通管７１が大型化して連通管７１の回動範囲が規制されることを防止できることから、ケース体２４内、特に連通管７１の回動範囲外でケース体２４を大型化することがない位置、例えば回路室３４あるいは床面検出室３５、特にリード線６０が接続される回路基板１６３ を収容する回路室３４が好ましい。
【００８８】
そして、出力軸１５５ と回転清掃体１３０ とを周方向に所定の角度範囲で互いに回転自在にクリアランスを設けて係合させたが、周方向にはクリアランスを設けずに係合させてもよい。
【００８９】
また、互いに回転自在に嵌挿する係合筒部１４１ およびプーリ保持部１５３ を設けて説明したが、径方向で互いに重なり合って互いに回転自在に嵌挿するいずれの構成でもよく、また設けなくてもよい。
【００９０】
そして、駆動手段１４７ が配設される位置に対してケース体２４の走行方向の前側下面および後側下面にそれぞれブラシ体４２および清掃体４３を設けて説明したが、例えば駆動手段１４７ が位置する下面に設けたり、前後両側にブラシ体４２あるいは清掃体４３のみを設けてもよい。
【００９１】
一方、吸気口４８を複数設けて説明したが、１つのみでもよい。
【００９２】
そして、吸気口４８の開口位置は、上部ケース２２の上部に限らず、回転清掃体１３０ のブレード１３５ に吹き付け可能ないずれの位置でもよい。
【００９３】
さらに、第１の連通凹部３８および第２の連通凹部３９は設けなくてもよい。
【００９４】
【発明の効果】
請求項１記載の電気掃除機の吸込口体によれば、吸込口を開口した吸込室に回転清掃体を回転可能に配設するとともに、吸込室の長手方向の一端側に形成された駆動室に、回転清掃体を回転させる電動モータを同軸上に有する駆動手段を設けたケース体に、回転清掃体の清掃部材に吸気流を吹き付ける吸気口を開口形成して、ケース体下面の負圧の増大を抑制するため、ケース体が被掃除面に吸い付くことを防止できるとともに、吸気口からの吸気により回転清掃体の回転を補助するため、回転清掃体の清掃部材にて効率よく塵埃を掻き上げでき、吸塵効率を向上できる。
【００９５】
請求項２記載の電気掃除機の吸込口体によれば、請求項１記載の電気掃除機の吸込口体の効果に加え、吸気口を回転清掃体の軸方向に沿って複数設けるため、回転清掃体の清掃部材に複数箇所で吸気流が吹き付けられて回転清掃体の回転トルクを増大できるとともに、回転清掃体の軸方向においてばらつきなく吸気流が吹き付けられて安定した回転清掃体の回転が得られ、塵埃の掻き上げ効率を向上できる。
【００９６】
請求項３記載の電気掃除機の吸込口体によれば、請求項１または２記載の電気掃除機の吸込口体の効果に加え、ケース体の回転清掃体の軸方向の両端側下面に吸込口に連通する吸込溝を形成するため、駆動手段および回転清掃体を軸支する構成が位置して吸込口を開口できないケース体の両端側からでも吸塵できるとともに、ケース体の下面の負圧状態が略均一となって回転清掃体の清掃部材が全体的に被掃除面から塵埃を掻き上げでき、安定した回転清掃体の回転が得られ、塵埃の掻き上げ効率も向上できる。
【００９７】
請求項４記載の電気掃除機の吸込口体によれば、請求項３記載の電気掃除機の吸込口体の効果に加え、駆動手段が位置するケース体の長手方向の一側下面に開口する吸込溝の風路面積を他側下面に形成する吸込溝より大きくしたため、吸込口が開口しない面積が大きい長手方向の一側からの吸込量と吸込口が開口しない面積が小さい他側からの吸込量とを略均一にでき、安定して長手方向の両側から吸塵でき、吸塵効率を向上できる。
【００９８】
請求項５記載の電気掃除機によれば、ケース体が被掃除面に吸い付くことを防止しつつ回転清掃体の回転を補助して吸塵効率を向上できる請求項１ないし４いずれか一記載の電気掃除機の吸込口体を備えるため、掃除性を向上できる。
【図面の簡単な説明】
【図１】本発明の実施の一形態を示す吸込口本体の端部における側面断面図である。
【図２】同上吸込口本体の平面断面図である。
【図３】同上吸込口本体の中央位置での側面断面図である。
【図４】同上吸込口本体を示す平面図である。
【図５】同上正面図である。
【図６】同上背面図である。
【図７】同上側面図である。
【図８】同上底面図である。
【図９】同上吸込口本体の連通管の接続部分を示す斜視図である。
【図１０】同上上部ケースおよび連結管部の関係を示す平面図である。
【図１１】同上連結管部を示す背面図である。
【図１２】同上連結管部および連通管を示す分解斜視図である。
【図１３】同上継手部の上継手部を示す側面断面図である。
【図１４】同上連通管の連通管部を示す分解斜視図である。
【図１５】同上連通管部を示す平面図である
【図１６】同上カバー部を取り外した連通管部を示す平面図である。
【図１７】同上連通管部を示す分解側面図である。
【図１８】同上駆動手段と回転清掃体との接続状況を示す断面図である。
【図１９】同上回転清掃体のプーリを示す平面図である。
【図２０】同上モータケースと出力プーリとを示す側面断面図である。
【図２１】同上正面断面図である。
【図２２】同上平面断面図である。
【図２３】同上平面図である。
【図２４】同上電気掃除機本体を示す斜視図である。
【図２５】同上第２の掃除形態の吸込口本体を示す平面図である。
【図２６】同上背面図である。
【図２７】同上第３の掃除形態の吸込口本体を示す平面図である。
【図２８】同上背面図である。
【符号の説明】
１ 掃除機本体
14 吸込口本体
24 ケース体
30 吸込口
38 吸込溝としての第１の連通凹部
39 吸込溝としての第２の連通凹部
48 吸気口
130 回転清掃体
135 清掃部材であるブレード
147 駆動手段
155 出力軸[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention cleaning The present invention relates to a vacuum cleaner having a driving means for rotating a body and a suction port body thereof.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a suction port body of this type of vacuum cleaner, for example, a configuration described in Japanese Patent Application Laid-Open No. 6-304100 is known.
[0003]
The suction port body of the vacuum cleaner described in Japanese Patent Application Laid-Open No. Hei 6-304100 has a suction chamber having a suction port opened on a lower surface in a case body elongated in the running direction, and a suction chamber located on one side of the suction chamber. The drive chambers are formed separately. In the suction chamber, a rotary cleaning body is rotatably arranged facing the suction port, and in the drive chamber, there is provided an output shaft which is substantially coaxially and detachably engaged with one axial end of the rotary cleaning body. An electric motor for rotating and driving the rotary cleaning body is provided, so that the front-rear width of the suction opening body can be reduced.
[0004]
[Problems to be solved by the invention]
However, in the suction port body of the vacuum cleaner described in Japanese Patent Application Laid-Open No. 6-304100, since the electric motor is disposed substantially coaxially with respect to the rotary cleaning body, the longitudinal direction of the case body where the electric motor is located is located. The suction port cannot be opened at one end side. Therefore, when cleaning the wall, the distance from the suction port to one end of the case body where the electric motor is located is increased, and the amount of suction air from one end where the electric motor is located is reduced. In addition to this, the negative pressure of the suction port on the lower surface of the case body may increase, and the case body may stick to the floor surface and travelability may be impaired.
[0005]
For this reason, it is conceivable to form a concave groove-shaped suction groove which opens downward and communicates with the suction port on the lower surface on one end side of the case body where the motor is located, but the rotary cleaning body and the motor are coaxially positioned. Therefore, a large space is not provided below the motor, and the suction groove cannot be formed so large.Therefore, the amount of suction air from the suction groove is limited, and a certain degree of dust suction effect can be obtained, but the floor surface of the case body is obtained. There is a problem that sticking to is not solved very much.
[0006]
The present invention has been made in view of the above problems, cleaning An object of the present invention is to provide a vacuum cleaner in which a case body is prevented from sticking to a surface to be cleaned even with a configuration provided with a driving means for rotationally driving the body, and a dust suction efficiency is improved, and a suction port body thereof.
[0007]
[Means for Solving the Problems]
The suction opening of the vacuum cleaner according to claim 1 has an opening on a surface facing the surface to be cleaned. And a drive chamber formed at one end in the longitudinal direction of the suction chamber. With Said A horizontally-long rectangular case body opening an intake port communicating with the intake port, The suction chamber Rotatably disposed to scrape up dust on the surface to be cleaned Together with the airflow from the air inlet With cleaning member Rotating cleaning body When, An electric motor is provided in the driving room and provided coaxially with the rotary cleaning body, and the electric motor rotates the rotary cleaning body. And driving means The suction from the suction port suppresses an increase in negative pressure on the lower surface of the case body and assists the rotation of the rotary cleaning body. Things.
[0008]
And A rotary cleaning body is rotatably disposed in a suction chamber having an opening, and a drive chamber formed on one end in the longitudinal direction of the suction chamber has a coaxial electric motor for rotating the rotary cleaning body. Provided means Connects to suction port in horizontally long rectangular case body and rotates cleaning Opening the air inlet that blows the air flow to the body cleaning member Then, in order to suppress an increase in the negative pressure on the lower surface of the case body, While preventing the case body from sticking to the surface to be cleaned, In order to assist the rotation of the rotating cleaning body by suction from the intake port, rotation cleaning The dust is efficiently scraped up by the body cleaning member, and the dust absorption efficiency is improved.
[0009]
The suction port of the vacuum cleaner according to claim 2 is the suction port of the vacuum cleaner according to claim 1, wherein the suction port is rotated. cleaning A plurality is provided along the axial direction of the body.
[0010]
And rotate the inlet cleaning Rotation to provide multiple along the body axial direction cleaning Intake air is blown at multiple points on the body cleaning member, rotating cleaning As the rotational torque of the body increases, cleaning Inspired airflow is blown uniformly in the body's axial direction, and stable rotation cleaning Body rotation is obtained, and the efficiency of scraping up dust is improved.
[0011]
The suction port body of the vacuum cleaner according to claim 3 is the suction port body of the vacuum cleaner according to claim 1 or 2, wherein the case body rotates. cleaning A suction groove communicating with the suction port is formed on the lower surface on both ends in the axial direction of the body.
[0012]
And the rotation of the case body cleaning In order to form a suction groove communicating with the suction port on the lower surface on both ends in the axial direction of the body, driving means and rotation cleaning Dust can be sucked from both ends of the case body where the suction port cannot be opened because the structure that supports the body is located, and the negative pressure state on the lower surface of the case body is almost uniform and rotates. cleaning Stable rotation, as the body cleaning member generally sweeps up dust from the surface to be cleaned cleaning Rotation of the body is obtained, and the efficiency of scraping dust is also improved.
[0013]
The suction opening of the vacuum cleaner according to claim 4 is the suction opening of the vacuum cleaner according to claim 3, wherein the suction groove formed on the lower surface on one side in the longitudinal direction of the case body where the driving means is located is different from the suction opening. The air passage area is larger than the suction groove formed on the side lower surface.
[0014]
Since the air passage area of the suction groove formed on the lower surface on one side in the longitudinal direction of the case body where the driving means is located is larger than the suction groove formed on the lower surface on the other side, the area in which the suction port does not open is larger in the longitudinal direction. The suction amount from the side and the suction amount from the other side in the longitudinal direction having a small area where the suction port is not opened are substantially uniform, and dust is stably sucked from both sides in the longitudinal direction, so that the dust suction efficiency is improved.
[0015]
According to a fifth aspect of the present invention, there is provided a vacuum cleaner comprising: a cleaner main body; and a suction port body of the vacuum cleaner according to any one of the first to fourth aspects connected to the cleaner main body.
[0016]
Rotate while preventing the case from sticking to the surface to be cleaned cleaning Since the suction port of the vacuum cleaner according to any one of claims 1 to 4 is provided to improve the dust suction efficiency by assisting the rotation of the body, the cleaning performance is improved.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a configuration of a vacuum cleaner according to an embodiment of the present invention will be described with reference to the drawings.
[0018]
In FIG. 24, reference numeral 1 denotes a cleaner main body. The cleaner main body 1 has a lower main body case 2a having an open upper surface, and an upper main body case 2b for closing a rear upper surface of the lower main body case 2a. The main body case 2 has a front upper surface opened by being sandwiched and joined with a bumper 3. The cleaner body 1 rotatably supports a lid 4 that closes the front upper surface of the body case 2 so as to be openable and closable.
[0019]
The main body case 2 is provided with a rotatable swivel wheel (not shown) on the front lower surface in the traveling direction, and a large-diameter driven wheel 6 is rotatably provided on the rear side surface of the main body case 2. The turning wheel and the driven wheel 6 can travel on the floor surface to be cleaned. Further, a handle 7 slidable in a vertical direction is provided at an upper portion of the main body case 2.
[0020]
An electric blower chamber accommodating an electric blower (not shown) is formed in the rear side of the cleaner body 1. A dust collecting chamber (not shown) for accommodating the dust collecting filter is formed on the front side. Further, on the front side of the cleaner body 1, there is formed a connection port 9 which opens toward the dust collection chamber and to which a hose 8 is detachably connected.
[0021]
The hose 8 includes a flexible hose body 11, a connection pipe 12 provided at one end of the hose body 11 and removably inserted and connected to the connection port 9 of the cleaner body 1, and the other end of the hose body 11. And a grip 15 to which a suction port main body 14 is connected via an extension pipe 13. An operating means 17 having various switches 16 and 16 for setting and operating the driving state of the electric blower is provided on the gripping portion 15.
[0022]
On the other hand, as shown in FIGS. 1 to 8, the suction port main body 14 is horizontally long with respect to the running direction which is the front-rear direction, and has a lower portion having an open upper surface made of a synthetic resin such as acrylonitrile-butadiene-styrene (ABS) resin. A case 21 and an upper case 22 that covers an upper opening above the lower case 21 and opens a lower surface of the same material are formed of a soft member buffer along the peripheral surface including the front surfaces of the lower case 21 and the upper case 22. 23 is provided with a convex-shaped case body 24 which is fixedly connected to the body 23 and has a substantially central rear portion protruding rearward.
[0023]
The lower case 21 has a rib portion 25 substantially vertically on the upper surface, and the case body 24 has a horizontally elongated rectangular suction portion 26 formed by the rib portion 25 and a pair of shaft support portions projecting rearward substantially at the center of the rear portion of the suction portion 26. 27, 27 form a convex shape. In the suction part 26, a rib part 25 communicates with a suction chamber 31 which is horizontally long on the front side and has a suction port 30 formed in the lower surface of the lower case 21, and a rear substantially center of the suction chamber 31. And a drive chamber 33 formed on one end side of the suction chamber 31 in the longitudinal direction, and a drive chamber 33 of the air path chamber 32 on one side of the shaft support 27. A circuit room 34 is provided, and a floor surface detection room 35 is formed on the other side of the air passage room 32 so as to span the other shaft support 27. A lower surface of an end of the suction chamber 31 of the case body 24 opposite to the drive chamber 33 is opened downward, and a closing plate 36 is detachably attached to the opening with a mounting tool 37.
[0024]
Further, on the lower surface of the lower case 21, a first groove-shaped first communication which is located on the lower surface of the drive chamber 33 and serves as a leak port as a suction groove for connecting the outside of the case body 24 to the suction chamber 31. A concave groove 38 is provided, and a concave groove-shaped second communication which is located at a rear portion on both ends of the suction chamber 31 and serves as a leak groove as a suction groove for communicating the rear outside of the case body 24 and the suction chamber 31. A recess 39 is provided.
[0025]
Further, on the lower surface of the lower case 21, a brush body 42 as a cleaning body having brush bristles 41 planted laterally is provided at both ends on the front side. Further, on the lower surface of the lower case 21, there is provided a cleaning body 43 as a cleaning body formed of a cloth member having a raised brush planted forward and located at the rear of the lower surface of the drive chamber 33.
[0026]
On the other hand, the upper case 22 is provided with a case cover 45 having a substantially arc-shaped cross section that covers a substantially upper surface of the suction chamber 31 that is a front side of the lower case 21, and a gap that covers a rear edge of the upper surface of the case cover 45. An intake lid 46 is detachably attached, and a case cover 47 that covers the rear side of the lower case 21 over the shaft supports 27, 27. A plurality of, for example, two openings are formed in the front surface of the intake lid 46 along the longitudinal direction of the case body 24, and the intake port 48 is also formed as a leak port. The gap serves as the intake air passage 49 and communicates with the suction chamber 31.
[0027]
Further, the case body 24 is provided with a connecting pipe portion 51 which is sandwiched and fixed between the shaft supporting portions 27 and 27 at a substantially rear center of the lower case 21 and the upper case 22 to partition the air passage chamber 32. As shown in FIGS. 2, 3 and 9 to 13, the connecting pipe portion 51 is provided with a suction flapper portion 52 that expands in a trumpet shape at one end in the axial direction and a substantially cylindrical shape at the other end. And a tubular suction pipe portion 54 provided with a connection suction pipe portion 53. The lower case projects in a flange shape between the suction wrapper portion 52 and the connection suction pipe portion 53 which are substantially intermediate between the suction pipe portions 54. A connecting flange 55 is provided between the upper case 21 and the upper case 22. The connection pipe portion 51 has the periphery of the suction wrapper portion 52 and the connection flange 55 sandwiched between the lower case 21 and the upper case 22 such that the suction wrapper portion 52 of the suction pipe portion 54 opens toward the inside of the suction chamber 31. Be attached. In addition, between the outer periphery of the suction wrapper portion 52 of the suction pipe portion 54, the connecting flange portion 55 and the lower case 21, a wire wiring passage through which the circuit room 34 communicates with the floor detection chamber 35 and the wire 57 is wired. 58 is defined.
[0028]
Further, the connection flange 55 is provided with an electric wire insertion hole 61 through which the lead wire 60 is inserted in an arc shape along the outer peripheral side of the suction pipe portion 54. The edge of the electric wire insertion hole 61 is chamfered so as not to damage the lead wire 60 even if the lead wire 60 comes into contact. In addition, a rotation restricting projection 62 that protrudes outward is provided on the outer peripheral surface of the connection suction pipe 53 of the suction pipe 54.
[0029]
A driven front wheel chamber 66 in which a driven front wheel 65 is rotatably supported is formed at both front ends of the lower case 21. In addition, a driven rear wheel chamber 68 in which a driven rear wheel 67 is rotatably supported is formed in a pair of shaft support portions 27 of the lower case 21. The driven rear wheel 67 is provided on its outer peripheral surface with a protective sheet 69 which is a flexible member such as cloth or an elastic member such as rubber. The case body 24 can travel on the floor surface, which is the surface to be cleaned, by the driven front wheel 65 and the driven rear wheel 67.
[0030]
A communication pipe 71 is provided at the center of the rear part of the case body 24 between the pair of shaft supports 27, 27. The communication pipe 71 has a joint part 72 rotatably fitted to the connection suction pipe part 53 of the suction pipe part 54 of the connection pipe part 51 provided on the case body 24, and one end having the other end in the vertical direction. A communication pipe portion 73 rotatably supported by the joint portion 72 is provided.
[0031]
As shown in FIGS. 14 to 17, the communication pipe portion 73 includes a substantially cylindrical tubular portion 74 whose one end is bent and a communication rotating portion 75 provided at one end of the tubular portion 74. It is configured. Further, a cover 76 which is long in the axial direction is formed on the outer peripheral surface of the bent side of the cylindrical portion 74 so as to define a wiring chamber 77 therein, and is attached and fixed with screws (not shown).
[0032]
On the other hand, the communication rotation part 75 is a substantially semi-cylindrical shape having an axial direction in the left-right direction that is orthogonal to the axial direction of the cylindrical part 74, and is provided integrally with one end of the cylindrical part 74. A rotating barrel portion having a moving barrel portion 80 and a wrapper portion 81 provided integrally with the rotating barrel portion 80 and formed in a trumpet shape so that the inner surface of the tubular portion 74 expands from the inner surface; Reinforcing ribs 82 are integrally provided substantially radially from the inner surface 80 to the space between the outer surface of the wrapper portion 81. The communication rotating portion 75 is provided integrally with a substantially cylindrical rotating shaft 84 substantially coaxially at the center position of the reinforcing rib 82, that is, at both end surface positions of the rotating cylindrical portion 80. Further, a retaining claw portion 85 protruding outward in a wall shape protrudes outward from an edge along the axial direction of the rotating tubular portion 80 near the upper and lower edges where the wrapper portion 81 of the communication rotating portion 75 expands. Is established. On the outer peripheral surface of the rotating cylindrical portion 80, a rotation restricting rib 86 is formed in a wall shape along the axial direction and abuts on the joint portion 72 and is restricted in rotation.
[0033]
Further, a wiring opening 88 communicating with a space between the rotating tubular portion 80 and the flapper portion 81 is formed at a base end position where the communicating rotating portion 75 is connected to the tubular portion 74. On one of the rotating shafts 63, that is, on the rotating shaft 63 located on the circuit chamber side, a wire cutout portion 89 is cut out in the axial direction.
[0034]
Further, the communication pipe portion 73 is provided integrally with the cover portion 76 and partially covers the outer peripheral surface of the tubular portion 74 so that the inside is formed with the wiring chamber 77 and the rotating tubular portion 80 and the wrapper portion 81 in the cover portion 76. A wiring cover part 92 is formed to define a wiring path chamber 91 communicating with a space between the wiring paths. The wiring cover part 92 has a cover covering part 93 provided in series on the cover part 76 and covering a part of the outer peripheral surface of the tubular part 74. One side edge of the cover covering part 93 has a rotating tubular part. A fan portion 94 is provided to close one end of the 80, that is, the side where the rotary shaft 84 provided with the wire cutout portion 89 is located, by covering a space between the rotating tubular portion 80 and the wrapper portion 81. ing. Further, the fan portion 94 is provided with a shaft cover portion 95 which is protruded in an arc shape in the same manner as the outer peripheral curvature of the rotating shaft 84 and engages with the wiring cutout portion 89 of the rotating shaft 84 to close it. The rotation shaft 84 is formed in a substantially cylindrical shape by the lid 95 engaging the wiring cutout 89.
[0035]
Further, on the outer surface of the communication tube portion 73 covered by the wiring cover portion 92, a lead wire engaging groove 96 having a concave groove shape is provided.
[0036]
On the upper surface of the cover 76 on the side of the communication rotating portion 75, a pair of locking flanges 97, 97 protruding in the horizontal direction in a state where the axial direction of the communication tube 73 is located in the front-back direction. A pair is protruded. As shown in FIGS. 27 and 28, the locking flanges 97, 97 are arranged such that the axial direction of the communication pipe 73 is located along the horizontal direction, which is the lower surface of the suction port main body 14, and the case body 24 The hooks 27 can be engaged with hooking claws 98 provided on the upper surfaces of the distal ends of the shaft supports 27, 27, respectively.
[0037]
Further, a pair of wall-shaped locking claws 99 projecting in the axial direction are provided on the communication pipe portion 73 at radial positions along the horizontal direction with the axial direction being located in the front-rear direction. ing. Then, as shown in FIGS. 25 and 26, the locking claw portions 99, 99 are provided with the shaft support portions 27, 27 of the case body 24 in a state where the communication pipe portion 73 is located along the longitudinal direction of the case body 24. Can be engaged with the hooking claw portions 98 provided on the upper surface of the distal end of each of them.
[0038]
On the other hand, the joint portion 72 has an inner pipe portion 101 as an air passage pipe portion which is rotatably held by fitting the suction pipe portion 54 of the connecting pipe portion 51 and has a large diameter coaxially with the inner pipe portion 101. A double pipe section 104 having an outer pipe section 102 as a connecting pipe section and having a gap 103 between the inner pipe section 101 and the outer pipe section 102, and a substantially hemisphere on one end half circumference of the double pipe section 104. An upper joint portion 105 is formed in a protruding shape, and a substantially hemispherical lower joint portion 106 that covers the lower surface of the upper joint portion 105 and is integrally attached by screwing or the like. On the inner surface of the inner pipe portion 101, a rotation regulating rib 108 projecting in a wall shape over substantially half a circumference and projecting at its end with the rotation regulating projection 62 of the connecting pipe portion 51 is provided. On the other hand, the joint portion 72 is rotatably supported in an angle range of approximately 180 °.
[0039]
Further, the upper joint portion 105 and the lower joint portion 106 are provided with a pair of substantially parallel partition ribs 110 1 and 110 protruding in the shape of walls in the up-down direction and having their distal ends joined to each other. An air passage space portion 111 accommodating the communication rotating portion 75 of the communication tube portion 73 by the ribs 110 1, 110 2, and a pair of inner chambers 112 1 112 formed in the left and right direction of the air passage space portion 111 1. It is compartmentalized. Further, notches 114, 114 are formed in the partition ribs 110, 110 so as to face each other in a substantially semicircular shape at edges to be joined, and the notches 114, 114 are used to form the rotating shaft 84 of the communicating pipe 73. , 84 are rotatably supported to form substantially circular bearing holes 115, 115.
[0040]
Further, a communication insertion hole 117 communicating with the gap 103 of the double pipe portion 104 is provided in the inner chamber 112 on the bearing hole 115 side that supports the rotary shaft 84 provided with the wiring cutout portion 89. In the partition rib 110 on the side where the communication insertion hole 117 is provided, a communication notch 118 is provided in which a part of the notch 114 is cut out to communicate the inner chamber 112 and the air passage space 111. ing. The wiring chamber 77 in the cover 76 includes a wiring path chamber 91 in the wiring cover 92, a wiring opening 88, a space between the rotating cylinder 80 and the wrapper 81, a wiring cutout 89, The circuit chamber 34 in the case body 24 through the inner periphery of the rotating shaft 84, the communication notch 118, the inner chamber 112, the communication insertion hole 117, the gap 103 between the double pipes 104, and the electric wire insertion hole 61 of the connection pipe 51. Communicate with
[0041]
The upper joint portion 105 and the lower joint portion 106 have upper cutouts 120 and cutouts formed in substantially U-shape at positions opposed to each other at a portion located in the air passage space 111 and rotation control of the communication pipe portion 73. Lower notches 121 with which the ribs 86 abut are provided, respectively, and these upper notches 120 and lower notches 121 serve as escape portions for the communication pipe 73 to rotate in the vertical direction.
[0042]
A terminal pin 125 is provided at one end of the communication pipe 71 so as to protrude from the cover 76 of the communication pipe 73 and is connected to a connector (not shown) provided at the end of the extension pipe 13. The other end of the lead wire 60 extends from the inside of the wiring chamber 77 to the wiring path chamber 91 in the wiring cover 92, the wiring opening 88, the space between the rotating cylinder 80 and the wrapper 81, and the wiring cut. Part 89, the inner circumference of the rotating shaft 84, the communication cutout part 118, the inner chamber 112, the communication insertion hole 117, the gap 103 between the double pipe parts 104, and the electric wire insertion hole 61 of the connection pipe part 51 inside the case body 24. It is arranged in the circuit room 34. In the communication pipe 71, the cylindrical part 74 of the communication pipe part 73 is detachably connected to the cleaner body 1 via the extension pipe 13 and the hose 8, and the suction port 30 is connected to the connection port 9 of the cleaner body 1. Communicate.
[0043]
Further, in the case body 24, there is disposed a rotary cleaning body 130 as a rotary body rotatably supported by bearings (not shown) provided at both ends in the left-right direction of the suction chamber 31. . The rotary cleaning body 130 is provided integrally with a shaft 131, a shaft support member 132 rotatably provided at one end of the shaft 131 and detachably attached to a bearing, and the other end of the shaft 131. A pulley 133, a blade mounting groove 134 having a groove shape spirally provided on the shaft 131, and an edge attached to the blade mounting groove 134, and a wall-shaped spiral provided on the outer peripheral surface of the shaft 131; And a blade portion 137 having a cloth blade 136 having a raised surface on a surface in the direction of rotation of the rotary cleaning body 130 on one side. FIGS. 1, 2, 6 and 7 show the blade 135 and the cloth blade 136 in a straight line for convenience of explanation. A hitting portion 138 is provided at the tip edge of the blade 135 so as to bulge in the direction opposite to the bending direction and become thick.
[0044]
The rotary cleaning body 130 is positioned above the plane formed by the driven front wheel 65 and the driven rear wheel 67 with its lower end facing the suction port 30, and does not come into contact with a flat floor surface plate. The blade 135 comes into contact with the carpet, which is an uneven floor surface that enters the floor 30, and the cloth blade 136 is located below a plane formed by the driven front wheel 65 and the driven rear wheel 67, and comes into contact between the boards to floor. It is arranged as follows.
[0045]
Further, as shown in FIGS. 18 and 19, a pulley 133 provided at one end of the rotary cleaning body 130 which is located on the drive chamber 33 side has a substantially cylindrical disk portion 140 on the outer peripheral edge on one surface side. An engagement cam 141 which is a cylindrical portion is provided on one surface where the engagement cylinder 141 protrudes, and an engagement cam 142 which protrudes radially from the inner peripheral surface of the engagement cylinder 141 via a predetermined distance is provided on one surface where the engagement cylinder 141 projects. A plurality is provided. On the other surface of the disc 140, there is provided a mounting tubular portion 143 integrally fitted to the shaft 131 of the rotary cleaning body 130, and the pulley 133 is provided integrally at one end of the rotary cleaning body 130. ing. The pulley 133 is provided with an output pulley 145 which is engaged with the pulley 133 so as to be disengageable and forms a drive transmission body 144 with the pulley 133.
[0046]
In the drive chamber 33 of the case body 24, as shown in FIGS. 20 to 23, a drive means 147 for rotating the rotary cleaning body 130 is provided. The driving means 147 includes a motor case 148 and an electric motor 149 housed in the motor case 148.
[0047]
The motor case 148 includes a motor holding portion 152 having a substantially cylindrical shape for fitting and housing the electric motor 149 and opening an electric wire insertion window 151 through which a power supply line 150 for feeding power to the electric motor 149 is inserted. The output pulley 145 is accommodated on the one end edge of the pulley 133 and coaxially rotatably fitted with the output pulley 145 without contacting the inside of the engagement cylindrical portion 141 of the pulley 133. And a pulley holding portion 153 as a shape portion. Further, on the outer peripheral surface of the pulley holding portion 153, a stopper flange 154a projecting in a flange shape is provided, and the lower case 21 and the step portion 154b between the stopper flange 154a and the motor holding portion 152 are provided. The rib 25 of the upper case 22 is engaged. Further, a pair of rotation stopping claws 154c are provided on the outer peripheral surface of the motor holding portion 152 between the stopper flange 154a and the stepped portion 154b, and project in a radial direction. The rotation stopping claw 154c is sandwiched between the joint portions of the rib portions 25, 25 of the lower case 21 and the upper case 22, and the motor case 148 is non-rotatably disposed in the case body 24.
[0048]
The electric motor 149 has an output shaft 155. The output shaft 155 protrudes toward the pulley holding portion 153, and the electric motor 149 is disposed on the motor holding portion 152. A substantially prismatic cam 156 is provided at the tip of the output shaft 155.
[0049]
On the other hand, the output pulley 145 has an inner peripheral surface which is open to one surface side with a substantially rectangular cylindrical shape on one surface side of a substantially disk-shaped disk portion 158 which can be inserted into the pulley holding portion 153 of the motor case 148. A connecting tubular portion 159 is provided to cover and house the output shaft 155 of the electric motor 149. The distance between the opposing surfaces of the inner peripheral surface of the connecting cylindrical portion 159 is formed shorter than the diagonal dimension of the cam portion 156 of the electric motor 149, and the output shaft 155 and the rotary cleaning body 130 are fixed in the circumferential direction by a predetermined distance. Clearances are provided so that they can rotate relative to each other in the angle range. A bearing 160 fitted and fixed in the pulley holding portion 153 of the motor case 148 is fixed to the outer peripheral surface of the connecting cylindrical portion 159, and the output pulley 145 is inserted into the pulley holding portion 153 by the bearing 160. It is arranged rotatably. When the output pulley 145 is disposed in the motor case 148, a gap is provided between the tip of the output shaft 155 of the electric motor 149 and the output pulley 145 in the axial direction, and a gap is provided between the output shaft 155 and the output shaft 155. The clearance between the cam portion 156 of the output shaft 155 and the output pulley 145 engaged with the pulley 133 of the rotary cleaning member 130 is the clearance of the gap so that the rotary cleaning member 130 can relatively slide in the axial direction. Are engaged through.
[0050]
On the other surface of the output pulley 145, a plurality of radially projecting cam claws 161 are provided to engage between the engaging cams 142 of the pulley 133 of the rotary cleaning body 130.
On the other hand, a control circuit (not shown) for controlling the driving state of the electric motor 149 by connecting the electric motor 149 via the power supply line 150 is mounted in the circuit room 34 of the case body 24, and the lead wire 60 and the electric wire 57 are connected thereto. A circuit board 163 is provided. Then, the circuit chamber 34 becomes a lead wire accommodating chamber for accommodating the slack of the lead wire 60. Note that there is no protrusion or the like at which the lead wire 60 is hooked at the portion where the slack lead wire 60 is located. That is, for example, the electric components mounted on the circuit board 163 are provided only on one surface side of the printed circuit board, and the one surface side is disposed downward. It is preferable that the attachment portion does not protrude.
[0051]
In the floor detection chamber 35, floor detection means 165 connected to the circuit board 163 via the electric wire 57 wired through the electric wire wiring passage 58 is provided. The floor detecting means 165 includes a wheel bearing 168 having a rotatable wheel 166 and a rotatably supported side supporting the wheel by a shaft member 167. The wheel bearing 168 is always attached downward. A biasing means (not shown) such as a torsion spring or a leaf spring for urging the wheel 166 forward and backward from the lower surface of the case body 24 and a lower end of the wheel 166 at a predetermined position, for example, the driven front wheel 65 and the driven rear wheel 67. And a detection switch 169 for detecting that it has protruded below the plane formed. When the detection switch 169 detects that the lower end of the wheel 166 has protruded below a plane formed by the driven front wheel 65 and the driven rear wheel 67, the floor detection means 165 sends the signal to the control circuit of the circuit board 163. Control to stop the driving of the electric motor 149.
[0052]
Further, a lighting member such as a light emitting diode (not shown) connected to a circuit board 163 which is lit when the electric motor 149 is driven faces the end of the intake lid 46 of the upper case 22 on the drive chamber 33 side. A display window 170 is provided.
[0053]
Next, the operation of the above embodiment will be described.
[0054]
At the time of cleaning, the suction main body 14 is connected to the cleaner main body 1 via the extension pipe 13 and the hose 8. With this connection, the terminal pin 125 of the suction port main body 14 is connected to a connector (not shown) of the extension pipe 13, and the electric motor 149 in the suction port main body 14 is connected to the power supply line 150, the circuit board 163, the lead wire 60, and the extension pipe 13. The power is supplied to the vacuum cleaner main body 1 via a power line (not shown) provided on the hose 8. In this state, the electric blower is appropriately driven in a desired driving state and the electric motor 149 is driven by operating the switch 16 of the operating means 17 while holding the grip 15 of the hose 8. When the electric motor 149 is driven, the lighting of the lighting member is recognized via the display window 170 of the upper case 22 to indicate that the electric motor 149 is being driven.
[0055]
By driving the electric blower, the inside of the suction chamber 31 communicating with the negative pressure side of the electric blower becomes negative pressure and is taken in from the intake port 48, and the taken-in intake flow is the blade 135 and the cloth blade 136 of the rotary cleaning body 130. , The rotary cleaning body 130 is rotated. This air flow is blown substantially perpendicularly to the blade 135 and the cloth blade 136 of the rotary cleaning body 130, and then gathers toward the air path chamber 32 at the center of the case body 24 along the axial direction of the rotary cleaning body 130. As described above, the rotation of the rotary cleaning body 130 acts on the communication pipe 71 while increasing the rotation torque by acting on the long distance. In addition, the output shaft 155 rotates together with the cam portion 156 by the driving of the electric motor 149, and the corner portion of the cam portion 156 comes into contact with the inner surface of the connecting cylindrical portion 159 of the output pulley 145 to rotate the output pulley 145. The rotating cleaning body 130 rotates through the pulley 133 that rotates. Thus, the rotation cleaning body 130 rotates with a large torque by the rotation by the intake air flow and the rotation by the driving of the electric motor 149.
[0056]
Then, the gripper 15 of the hose 8 is pushed to move the suction port main body 14 back and forth on the floor surface. When the suction port main body 14 travels on the floor surface, the first cleaning mode is such that the axial direction of the communication pipe 71 is along the front-rear direction which is the traveling direction of the suction port main body 14.
[0057]
When the suction port main body 14 travels on the floor surface, when the floor surface is a carpet or the like, the beating portion 138 of the blade 135 of the rotating rotary cleaning body 130 collides with the floor surface to blow out dust and the blade 135 is moved. The dust is scraped out or swept, and the dust is sucked through the suction port 30. When the floor surface is relatively flat, such as between a board and a tatami mat, the cloth blade 136 of the rotating rotary cleaning body 130 sweeps up dust on the floor surface while polishing the floor surface, and sucks it through the suction port 30. Further, at the position of the lower surface of the case body 24 where the suction port 30 is not opened, the brush body 42 and the cleaning body 43 scrape or wipe off dust from the floor surface. In addition, since the brushing is planted in the forward direction in the cleaning body 43, when the suction port body 14 is pushed forward by holding the grip 15 of the hose 8, the brushing becomes reverse. Scavenging dust efficiently. In addition, when the suction port main body 14 is retracted, a force is applied to lift the suction port main body 14, so that the cleaning body 43 sweeps the dust so as to polish the floor surface.
[0058]
Further, dust on the side of the suction port main body 14, particularly on one side whose distance to the suction port 30 is increased by the drive chamber 33, is sucked into the suction port 30 via the first communication recess 38. Further, the air passage between the brush body 42 and the cleaning body 43 communicates with the suction port 30, and the negative pressure increases even in the portion where the driving means 147 is located, so that dust is efficiently sucked even from one side.
[0059]
Then, the dust sucked in with the air flows into the dust collecting chamber of the cleaner body 1 through the extension pipe 13 and the hose 8 and is captured.
[0060]
On the other hand, when cleaning a relatively narrow gap between furniture or the like, that is, when cleaning a floor having a width dimension in which the horizontally long suction port body 14 cannot travel, as shown in FIGS. The communication pipe 71 is rotated so that the axial direction is along the longitudinal direction of the suction port main body 14, and the engaging claw 99 of the communication pipe 71 is engaged with the hook claw 98 of the case body 24 to rotate the communication pipe 71. The cleaning mode is changed to the second cleaning mode by regulating the movement so that the longitudinal direction of the suction port main body 14 becomes the running direction. Then, in this state, the suction port main body 14 is cleaned by sliding the suction port main body 14 into a gap portion such as between furniture.
[0061]
Also, when cleaning a relatively low place such as under furniture, that is, a place where the case body 24 can be inserted higher than the height dimension of the case body 24 but the communication pipe 71 or the extension pipe 13 hits, As shown in FIGS. 27 and 28, the communication pipe 71 is rotated so that the axial direction of the communication pipe 71 is along the horizontal direction which is the lower surface of the suction port main body 14, and the locking flange 97 of the communication pipe 71 is used as a case. The cleaning mode is changed to the third cleaning mode by controlling the rotation of the communication pipe 71 by engaging with the hooking claw 98 of the body 24. Then, in this state, the suction port main body 14 is cleaned by sliding the suction port main body 14 into a gap portion such as under the furniture.
[0062]
When the cleaning mode is changed from the first cleaning mode to the second cleaning mode or the third cleaning mode, the electric wire insertion hole 61 of the connecting pipe portion 51 through which the lead wire 60 is inserted and the communication insertion hole of the joint portion 72 are inserted. 117 are no longer opposed to each other, and the distance between the electric wire insertion hole 61 and the communication insertion hole 117 becomes longer. The lead wire 60 corresponding to the increase in the distance moves so as to be drawn out of the circuit chamber 34, and the lead wire 60 does not break. When the cleaning mode is changed to the first cleaning mode again, the electric wire insertion hole 61 and the communication insertion hole 117 are opposed to each other to reduce the distance therebetween. Due to the rigidity, it is stored in the circuit chamber 34 again.
[0063]
When the hose 8 is placed on the floor surface due to the interruption of cleaning, or in order to remove dust clogged in the suction port 30 and to remove thread dust and the like entangled with the rotary cleaning body 130, the lower surface of the suction port main body 14 is removed. When the vehicle is separated from the floor, the floor detecting means 165 detects that the wheel 166 has protruded from a predetermined position by the urging of the urging means, that is, has protruded below a plane formed by the driven front wheel 65 and the driven rear wheel 67. When the floor is no longer detected by the switch 169, the control circuit of the circuit board 163 determines that the lower surface of the suction port main body 14 is separated from the floor and does not detect the floor, and drives the electric motor 149. Stop. When the lower surface of the suction port main body 14 is separated from the floor surface, the negative pressure in the suction chamber 31 is also reduced, and the amount of intake air from the suction port 48 is also reduced. By stopping the drive of the electric motor 149 and reducing the amount of intake air, the rotation of the rotary cleaning body 130 stops.
[0064]
As described above, the suction port is provided in the horizontally long rectangular case body 24 that houses the rotary cleaning body 130 and the electric motor 149 of the driving means 147 that is rotated substantially coaxially with the rotation of the rotary cleaning body 130. Since the suction port 48 that opens to the blade 135 of the rotary cleaning body 130 and communicates with the suction port 48 is formed to be open, the suction from the suction port 48 suppresses an increase in the negative pressure on the lower surface of the case body 24 and the case body 24 It is possible to prevent sticking to the floor surface, which is the surface to be cleaned, and to assist the rotation of the rotary cleaning body 130 by the airflow from the air inlet 48, so that the blade 135 of the rotary cleaning body 130 can efficiently scrape up dust. , Dust collection efficiency can be improved.
[0065]
Since the rotation of the rotary cleaning body 130 is assisted by the intake air flow, the weight and size of the electric motor 149 can be reduced, and the weight of the suction port body 14 can be reduced.
[0066]
In addition, since a plurality of, for example, two, suction ports 48 are provided along the axial direction of the rotary cleaning body 130, a plurality of, ie, two, suction air flows can be blown to the blades 135 of the rotary cleaning body 130, and the rotation of the rotary cleaning body 130 The torque can be increased, and the airflow can be blown without variation in the axial direction of the rotary cleaning member 130, so that the rotation of the rotary cleaning member 130 can be stabilized and the dust scraping efficiency can be improved.
[0067]
Further, since the first communication concave portion 38 and the second communication concave portion 39 communicating with the suction port 30 are provided on the lower surface of both ends in the axial direction of the rotary cleaning member 130 of the case body 24, the driving means 147 and the rotary cleaning member 130 are provided. The shaft support member 132, which is configured to support the shaft, can absorb dust even from both ends of the case body 24 where the drive transmission body 144 is located and cannot open the suction port 30, and the negative pressure state on the lower surface of the case body 24 is substantially uniform. As a result, the blade 135 of the rotary cleaning member 130 can entirely lift dust from the floor surface, so that the rotary cleaning member 130 can be rotated stably, and the dust scraping efficiency can be improved.
[0068]
Further, the first communication recess 38 is provided only on one side where the driving means 147 is located, and the first communication recess 38 and the first communication recess 38 which are opened on the lower surface on one side in the longitudinal direction of the case body 24 where the driving means 147 is located. Since the total opening area of the second communication concave portion 39 is larger than the opening area of the second communication concave portion 39 opened on the lower surface on the other side, the area where the suction port 30 does not open is large, and one side in the longitudinal direction becomes far from the suction port 30. And the suction amount from the other side in the longitudinal direction can be made substantially uniform, and the dust from both sides in the longitudinal direction can be stably collected. It is possible to improve dust collection efficiency.
[0069]
Further, a drive means 147 provided with an electric motor 149 having a rotatable output shaft 155 for substantially coaxially engaging and rotating the rotary cleaning body 130 is provided. Since the brush body 42 and the cleaning body 43 are provided on the lower surface of the case body 24 on which one side of the longitudinal direction of the case body 24 in which the driving means 147 which is farther from the suction port 30 is disposed, the brush body 42 and the cleaning body At 43, dust can be efficiently absorbed.
[0070]
The brush body 42 is provided on the lower surface on the front side in the traveling direction of the case body 24 with respect to the position where the driving means 147 is disposed, and the brush body 42 is provided with respect to the position in which the driving means 147 is disposed. Since the cleaning body 43 is provided on the side lower surface, an air path is formed between the brush body 42 and the cleaning body 43, and the negative pressure on the lower surface on one side in the longitudinal direction of the case body 24 in which the driving means 147 is disposed can be increased. In addition to the dust scraping effect of the brush body 42 and the cleaning body 43, the dust collection efficiency can be improved by increasing the negative pressure.
[0071]
Furthermore, scraping and sweeping of the dust by the brush body 42 and scraping and wiping of the dust by the cleaning body 43 can be obtained, so that the cleaning property can be improved, and the brush of the cleaning body 43 is directed toward the forward direction of the case body 24. When the case body 24 is moved forward, the dust is efficiently scraped off by the force applied to the floor surface when the case body 24 advances, and the dust surface is polished by the force acting to lift the suction port body 14 when the case body 24 retreats. Can be efficiently swept, running performance can be improved, and cleaning performance can be improved.
[0072]
The output shaft 155 of the electric motor 149 of the driving means 147 is opposed to one end of the rotary cleaning body 130 in the axial direction via a gap, and the output shaft 155 and the rotary cleaning body 130 are relatively slidable in the axial direction. So that the cam portion 156 of the output shaft 155 and the output pulley 145 engaging with the pulley 133 of the rotary cleaning body 130 are circumferentially engaged so that the rotation of the output shaft 155 is transmitted to the rotary cleaning body 130. For example, even if a force is applied to the rotary cleaning body 130 to move in the axial direction at the time of cleaning in the second cleaning mode or the third cleaning mode, no direct force is applied to the output shaft 155 and the output pulley 145 Is held and distributed to the motor case 148 attached to the case body 24, so that a load is prevented from being applied to the electric motor 149 of the driving means 147 via the output shaft 155, and the drive Damage of the electric motor 149 of the stage 147 can be prevented.
[0073]
Further, the output shaft 155 of the electric motor 149 of the driving means 147 and the output pulley 145 engaging with the pulley 133 of the rotary cleaning body 130 are rotatably engaged with each other in a predetermined angular range in the circumferential direction, so that cleaning is performed. In this case, it is possible to prevent the load received by the rotary cleaning body 130 from the floor from being transmitted to the electric motor 149 of the driving means 147 via the output shaft 155, and to prevent the electric motor 149 of the driving means 147 from being damaged.
[0074]
Further, since an output pulley 145 is provided which is detachably engaged with the rotary cleaning body 130 and is engaged with the output shaft 155 of the electric motor 149 of the driving means 147 so as to cover the output shaft 155, the driving of the electric motor 149 of the driving means 147 is performed by rotary cleaning. The centering of the pulley 133 for transmitting to the body 130 and the output shaft 155 is easy, and the work of rotatably assembling the rotary cleaning body 130 into the case body 24 can be easily performed. Even if dust such as thread dust is entangled, it can be easily removed simply by removing the rotary cleaning body 130, thereby improving maintainability.
[0075]
Further, since the rotary cleaning body 130 and the driving means 147 are provided with the engagement cylindrical portion 141 and the pulley holding portion 153 which are overlapped with each other in the radial direction and rotatably fitted to each other, dust such as lint can be removed. In addition, it becomes difficult to entangle with the engaging portion with the driving means 147, so that the rotation of the rotating cleaning body 130 can be stably obtained, and the work of removing dust such as entangled thread dust can be reduced, so that maintenance management can be improved.
[0076]
The axial direction can be selected to be different from the first cleaning mode at a position along the front-rear direction of the case body 24 and the second cleaning mode or the third cleaning mode at a position along the longitudinal direction, and the axial direction can be selected. An outer pipe portion 102 rotatably supported by the case body 24 of the communication pipe 71 rotatably supported within an angle range of not more than half a rotation as a rotation center, and provided substantially coaxially with the outer pipe portion 102; The lead wire 60 is inserted through the gap 103 between the inner pipe portion 101 and the inner pipe portion 101 communicating with the suction port 30, and is electrically connected to the electric motor 149 of the driving means 147. Even when the communication pipe 71 is pivotally supported, the lead wire 60 can be inserted between the outer pipe section 102 and the inner pipe section 101 by a simple structure. Winds and breaks or breaks What damage without causing, without affecting the flow of air sucked from the suction port 30 can be stably supply power to the driving means 147.
[0077]
Further, since the circuit room 34 in the case body 24 in which the circuit board 163 to which the lead wire 60 is connected is disposed is a lead wire accommodating room for accommodating the slack lead 60, for example, the lead wire accommodating room is connected to the communication pipe 71. By providing this, it is possible to prevent the communication pipe 71 from becoming large and impairing the rotation property of the communication pipe 71, and to easily perform the operation of rotating the communication pipe 71 to change the cleaning mode, thereby improving the cleaning workability. it can.
[0078]
In the above embodiment, not only the canister-type vacuum cleaner, but also an upright type in which the suction main body 14 is formed directly on the lower surface of the cleaner main body 1, and the like, as well as the cleaner main body 1 and the suction main body 14. The invention can also be applied to a self-propelled vacuum cleaner or the like in which is integrated.
[0079]
Further, the communication pipe 71 is described as being constituted by the joint part 72 and the communication pipe part 73. However, for example, the extension pipe 13 is connected to the communication pipe part 73 provided rotatably in the case body 24 in the vertical direction. Any configuration can be used such that the axial direction can be selectively rotated between a position along the front-rear direction and a position along the longitudinal direction of the case body 24, such as forming the communication pipe 71 by rotatably connecting the joint portion 72. .
[0080]
A substantially cylindrical connecting pipe portion 51 is provided on the case body 24, and one end of the joint portion 72 having a double pipe portion 104 rotatably fitted to the connecting pipe portion 51 is vertically connected to the other end. The communication pipe 73 is rotatably provided so that the communication pipe 71 can be selected between a position along the longitudinal direction of the case body 24 and a position along the longitudinal direction of the case body 24. The inner chambers 112 1 and 112 2 are formed to support the rotation shaft, and the inner chambers 112 1 and 112 2 are used to accommodate the slack, so that there is no need to separately provide a space for accommodating the lead wire 60. And downsizing can be achieved.
[0081]
In addition, although the rotary cleaning body 130 is driven to rotate, for example, a configuration may be adopted in which the traveling wheels are driven to rotate together with the rotary cleaning body 130 to improve the traveling performance of the suction port main body 14. Further, the rotating cleaning body 130 is not limited to one, and may be driven by a plurality of rotations. In addition to the blade 135, a rotating brush provided with raised hair in a wall shape, a rotating brush provided with a cloth blade 136, a brush or cloth It may be provided with any cleaning member in which the blade 136 and the blade 135 are combined.
[0082]
Further, as a configuration for transmitting the drive of the electric motor 149 to the rotary cleaning body 130, any configuration may be employed that is slidable in the axial direction with the output shaft 155 through a gap and is capable of transmitting rotation by engaging in the circumferential direction. Any configuration may be used.
[0083]
Further, the rotary cleaning body 130 may be configured to rotate in the reverse direction, and the rotation direction may be switched in accordance with the traveling direction of the suction port body 14.
[0084]
Although the output pulley 145 is used, the pulley 133 of the rotary cleaning body 130 may be slidable in the axial direction with a gap in the output shaft 155 and may be engaged in the circumferential direction.
[0085]
As the configuration for restricting the rotation of the communication pipe 71 with respect to the case body 24 at an angle of 180 ° or less, for example, a configuration in which the rotation of the communication pipe 71 abuts on the shaft support 27 and the rotation is restricted, or the like. The rotation may be restricted by the configuration described above.
[0086]
Further, although the description has been given of the double pipe structure in which the inner pipe section 101 and the outer pipe section 102 are provided substantially coaxially, the double pipe in which the center axis of the inner pipe section 101 is displaced from the center axis of the outer pipe section 102 is described. A gap 103 is formed between the inner peripheral surface of the outer tube portion 102 and the outer peripheral surface of the inner tube portion 101, such as a double tube structure in which the central axis of the inner tube portion 101 is not parallel to the central axis of the outer tube portion 102. Any double tube structure may be used.
[0087]
Furthermore, although the description has been made with the excess lead wire 60 accommodated in the circuit room 34, the lead wire accommodating room accommodated in the floor detection chamber 35 opposite to the circuit room 34 via the air passage room 32 is formed. The loose lead wire 60 may be accommodated at any position of the case body 24. According to the configuration in which the communication pipe 71 is accommodated in the case body 24 as in the above-described embodiment, it is possible to prevent the communication pipe 71 from being enlarged and restricting the rotation range of the communication pipe 71. In particular, a position where the case body 24 is not enlarged outside the rotation range of the communication pipe 71, for example, the circuit room 34 or the floor surface detection room 35, in particular, a circuit room for accommodating the circuit board 163 to which the lead wire 60 is connected. 34 is preferred.
[0088]
Although the output shaft 155 and the rotary cleaning body 130 are engaged with each other with a clearance provided rotatably in the circumferential direction within a predetermined angle range, they may be engaged without providing a clearance in the circumferential direction.
[0089]
In addition, although the description has been given by providing the engagement cylinder portion 141 and the pulley holding portion 153 rotatably fitted to each other, any configuration in which the engagement cylinder portion 141 and the pulley holding portion 153 overlap each other in the radial direction and are rotatably fitted to each other may be employed, or may be omitted. Good.
[0090]
The brush body 42 and the cleaning body 43 are provided on the front lower surface and the rear lower surface in the traveling direction of the case body 24 with respect to the position where the driving means 147 is disposed. For example, the driving means 147 is located. It may be provided on the lower surface, or only the brush body 42 or the cleaning body 43 may be provided on both front and rear sides.
[0091]
On the other hand, a plurality of intake ports 48 have been described, but only one may be provided.
[0092]
The opening position of the air inlet 48 is not limited to the upper part of the upper case 22, but may be any position that can be sprayed on the blade 135 of the rotary cleaning body 130.
[0093]
Further, the first communication recess 38 and the second communication recess 39 need not be provided.
[0094]
【The invention's effect】
According to the suction body of the vacuum cleaner according to claim 1, A rotary cleaning body is rotatably disposed in a suction chamber having an opening, and a drive chamber formed on one end in the longitudinal direction of the suction chamber has a coaxial electric motor for rotating the rotary cleaning body. Provided means Rotate on the case body cleaning Opening the air inlet that blows the air flow to the body cleaning member Then, in order to suppress an increase in the negative pressure on the lower surface of the case body, While preventing the case body from sticking to the surface to be cleaned, In order to assist the rotation of the rotating cleaning body by suction from the intake port, rotation cleaning The dust can be efficiently scraped up by the body cleaning member, and the dust absorption efficiency can be improved.
[0095]
According to the suction port of the vacuum cleaner according to the second aspect, in addition to the effect of the suction port of the vacuum cleaner according to the first aspect, the suction port is rotated. cleaning Rotation to provide multiple along the body axial direction cleaning Inhalation flow is sprayed on the body cleaning member at multiple locations and rotated cleaning It can increase the rotational torque of the body and cleaning Stable rotation with inspired airflow blown in the axial direction of the body without variation cleaning Rotation of the body is obtained, and the efficiency of scraping dust can be improved.
[0096]
According to the suction opening of the vacuum cleaner according to the third aspect, in addition to the effect of the suction opening of the vacuum cleaner according to the first or second aspect, rotation of the case body. cleaning In order to form a suction groove communicating with the suction port on the lower surface on both ends in the axial direction of the body, driving means and rotation cleaning Dust can be sucked from both ends of the case body where the suction port cannot be opened because the structure that supports the body is located, and the negative pressure state on the lower surface of the case body is almost uniform and rotates. cleaning The cleaning member of the body can sweep up dust from the surface to be cleaned as a whole, and stable rotation cleaning Rotation of the body is obtained, and the efficiency of scraping up dust can be improved.
[0097]
According to the suction opening of the vacuum cleaner according to the fourth aspect, in addition to the effect of the suction opening of the vacuum cleaner according to the third aspect, the opening is formed on the lower surface on one side in the longitudinal direction of the case body where the driving means is located. Since the air passage area of the suction groove is made larger than the suction groove formed on the lower surface of the other side, the suction area from one side in the longitudinal direction where the area where the suction port does not open is large and the suction area from the other side where the area where the suction port does not open is small The amount can be made substantially uniform, dust can be stably absorbed from both sides in the longitudinal direction, and the dust absorption efficiency can be improved.
[0098]
According to the vacuum cleaner of the fifth aspect, the case body rotates while preventing the case body from sticking to the surface to be cleaned. cleaning Since the suction port of the vacuum cleaner according to any one of claims 1 to 4 is provided, which can improve the dust suction efficiency by assisting the rotation of the body, the cleaning performance can be improved.
[Brief description of the drawings]
FIG. 1 is a side cross-sectional view at an end of a suction port main body showing one embodiment of the present invention.
FIG. 2 is a plan sectional view of the suction port main body.
FIG. 3 is a side sectional view of the suction port main body at a center position.
FIG. 4 is a plan view showing the suction port main body.
FIG. 5 is a front view of the same.
FIG. 6 is a rear view of the same.
FIG. 7 is a side view of the same.
FIG. 8 is a bottom view of the same.
FIG. 9 is a perspective view showing a connection portion of a communication pipe of the suction port main body.
FIG. 10 is a plan view showing the relationship between the upper case and the connecting pipe section.
FIG. 11 is a rear view showing the connecting pipe part.
FIG. 12 is an exploded perspective view showing the connection pipe section and the communication pipe in the same.
FIG. 13 is a side sectional view showing an upper joint part of the joint part.
FIG. 14 is an exploded perspective view showing a communication pipe portion of the communication pipe.
FIG. 15 is a plan view showing the communication pipe section according to the third embodiment;
FIG. 16 is a plan view showing the communication pipe part with the cover part removed therefrom.
FIG. 17 is an exploded side view showing the communication pipe section.
FIG. 18 is a cross-sectional view showing a connection state between the driving unit and the rotary cleaning body.
FIG. 19 is a plan view showing a pulley of the rotary cleaning body.
FIG. 20 is a side sectional view showing the motor case and the output pulley according to the third embodiment;
FIG. 21 is a front sectional view of the same.
FIG. 22 is a plan sectional view of the same.
FIG. 23 is a plan view of the same.
FIG. 24 is a perspective view showing the electric vacuum cleaner body.
FIG. 25 is a plan view showing a suction port main body in a second cleaning mode according to the second embodiment;
FIG. 26 is a rear view of the same.
FIG. 27 is a plan view showing a suction port main body in a third cleaning mode according to the third embodiment;
FIG. 28 is a rear view of the same.
[Explanation of symbols]
1 Vacuum cleaner body
14 Suction port body
24 case body
30 Suction port
38 First communicating recess as suction groove
39 Second communication recess as suction groove
48 Inlet
130 Times Roll cleaning body
135 Blade as a cleaning member
147 Driving means
155 output shaft

Claims (5)

被掃除面と対向する面に吸込口を開口した吸込室とこの吸込室の長手方向の一端側に形成された駆動室とを有するとともに前記吸込口に連通する吸気口を開口する横長矩形状のケース体と、
前記吸込室内に回転可能に配設され、前記被掃除面の塵埃を掻き上げるとともに前記吸気口からの吸気流が吹き付けられる清掃部材を有する回転清掃体と、
前記駆動室内に位置して前記回転清掃体と同軸上に設けられた電動モータを有し、この電動モータにより前記回転清掃体を回転させる駆動手段とを具備し、
前記吸気口からの吸気により、前記ケース体下面の負圧の増大を抑制するとともに前記回転清掃体の回転を補助する
ことを特徴とする電気掃除機の吸込口体。Horizontal rectangular shape opening an intake port communicating with the suction port as well as have a driving chamber formed in one longitudinal end side of the suction chamber and the suction chamber having an open inlet on a surface facing the surface to be cleaned Case body,
The rotatably disposed to the suction chamber, wherein the rotary cleaning body to have a cleaning member in which the intake flow is sprayed from the air inlet with scraped dust from a cleaning surface,
It has an electric motor located in the drive chamber and provided coaxially with the rotary cleaning body, and comprises driving means for rotating the rotary cleaning body by the electric motor ,
A suction port body for a vacuum cleaner, wherein suction from the suction port suppresses an increase in negative pressure on a lower surface of the case body and assists rotation of the rotary cleaning body. 吸気口は、回転清掃体の軸方向に沿って複数設けられた
ことを特徴とする請求項１記載の電気掃除機の吸込口体。The suction port body of a vacuum cleaner according to claim 1, wherein a plurality of suction ports are provided along an axial direction of the rotary cleaning body. ケース体の回転清掃体の軸方向の両端側の下面には、吸込口に連通する吸込溝が形成された
ことを特徴とする請求項１または２記載の電気掃除機の吸込口体。The lower surface of the axial opposite ends of the rotary cleaning body casing, according to claim 1 or 2 vacuum cleaner suction port body according to characterized in that the suction groove communicating with the inlet is formed. 駆動手段が位置するケース体の長手方向の一側下面に形成する吸込溝は、他側下面に形成する吸込溝より風路面積が大きい
ことを特徴とする請求項３記載の電気掃除機の吸込口体。4. The suction device according to claim 3, wherein the suction groove formed on the lower surface on one side in the longitudinal direction of the case body where the driving means is located has a larger air passage area than the suction groove formed on the lower surface on the other side. Mouth body. 掃除機本体と、
この掃除機本体に接続される請求項１ないし４いずれか一記載の電気掃除機の吸込口体と
を具備したことを特徴とする電気掃除機。The vacuum cleaner body,
An electric vacuum cleaner, comprising: the suction port of the electric vacuum cleaner according to any one of claims 1 to 4, which is connected to the main body of the electric vacuum cleaner.
JP16902899A 1999-06-15 1999-06-15 Vacuum cleaner and its suction body Expired - Lifetime JP3594175B2 (en)

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Application Number Priority Date Filing Date Title
JP16902899A JP3594175B2 (en) 1999-06-15 1999-06-15 Vacuum cleaner and its suction body

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JP3594175B2 true JP3594175B2 (en) 2004-11-24

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4612668B2 (en) 2007-11-28 2011-01-12 株式会社東芝 Electric vacuum cleaner
WO2011121816A1 (en) * 2010-03-30 2011-10-06 株式会社東芝 Rotating cleaning body unit, suction mouth body, and electric cleaner
JP2011115541A (en) * 2009-10-30 2011-06-16 Toshiba Corp Rotary cleaning body unit, suction port body and vacuum cleaner
US11471020B2 (en) 2011-04-29 2022-10-18 Irobot Corporation Robotic vacuum cleaning system
US9220386B2 (en) 2011-04-29 2015-12-29 Irobot Corporation Robotic vacuum
WO2012150789A2 (en) * 2011-05-02 2012-11-08 Kim Hyeong Jun Push stick cleaner
US9326654B2 (en) 2013-03-15 2016-05-03 Irobot Corporation Roller brush for surface cleaning robots
JP6376639B2 (en) * 2013-11-01 2018-08-22 株式会社コーワ Rotary cleaning body, vacuum cleaner suction tool and vacuum cleaner
JP5842042B1 (en) * 2014-09-22 2016-01-13 シャープ株式会社 Cleaning unit and vacuum cleaner using the same
CN105686762B (en) * 2016-04-14 2018-02-16 天津商业大学 A kind of automatic mopping device
KR102613447B1 (en) 2016-07-22 2023-12-14 삼성전자주식회사 Cleaner
US10512384B2 (en) 2016-12-15 2019-12-24 Irobot Corporation Cleaning roller for cleaning robots
US10595624B2 (en) 2017-07-25 2020-03-24 Irobot Corporation Cleaning roller for cleaning robots
US11109727B2 (en) 2019-02-28 2021-09-07 Irobot Corporation Cleaning rollers for cleaning robots

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