JP3968626B2

JP3968626B2 - Electric vacuum cleaner

Info

Publication number: JP3968626B2
Application number: JP2001049813A
Authority: JP
Inventors: 利男小池
Original assignee: Mitsubishi Electric Home Appliance Co Ltd; Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Home Appliance Co Ltd; Mitsubishi Electric Corp
Priority date: 2000-05-19
Filing date: 2001-02-26
Publication date: 2007-08-29
Anticipated expiration: 2021-02-26
Also published as: KR20010106182A; CN1324600A; CN1168415C; KR100408355B1; JP2002034861A

Description

【０００１】
【発明の属する技術分野】
本発明は電気掃除機に係り、さらに詳しくは、電気掃除機本体内に内蔵された電動送風機からの排気の温度を低温化し、かつ電動送風機から発生する騒音を低減する電気掃除機の低温化構造および消音構造に関するものである。
また、本発明は、電気掃除機本体の浮上構造及び電気掃除機本体と床用吸込み具を接続する接続体に関するものである。
【０００２】
【従来の技術】
電動送風機の騒音の消音構造を備えた電気掃除機の一例として、特開平３−５５０２０号公報に開示された発明があり、図１２にその電気掃除機の要部の断面図を示す。
【０００３】
図において、５０は底面に移動用車輪５１を有し、内部に電動送風機５２等が内蔵された電気掃除機の本体で、後面に排気口５３に近接してばね式またはスライド式の開閉自在なシャッタ５５を有する窓穴５４が設けられている。５７は隔壁５６の窓穴５４に対向する位置に設けられた排気流路で、内縁にシール用のゴム５８が装着されている。
【０００４】
５９は一端が排気流路５７に挿入され、他端の排出口６０が本体５０の下で、かつ前方に開口するように回転自在および着脱自在に装着された断面ほぼコ字状の消音パイプで、折曲部内面および排出口６０に消音材６１が取り付けられている。なお、矢印は電動送風機５２からの排気の流れを示す。
【０００５】
そして、このように構成した電気掃除機を稼動させると、電動送風機５２から出た空気はすべて消音パイプ５９を通って本体５０外に排出される。このとき、消音パイプ５９は排出口６０までの距離が長く、内部に消音材６１が設けられているため、高速排気流はその消音パイプ５９のマフラー効果によって徐々に減速され、排気の騒音も低減される。また、本体５０の下に位置する排出口６０から利用者の耳までの距離が長くなるとともに、本体５０によって遮音されるので、消音効果が向上する。
【０００６】
【発明が解決しようとする課題】
上記のような従来の電気掃除機は、消音パイプ５９を長くするとともに排出口６０を本体５０の下に位置するようにしたので、電動送風機５２からの排気の騒音が低減される。しかしながら、高出力の電動送風機５２から排出される排気は騒音のみならず温度も高温であり、特に夏場等の室内気温が高い場合には、排気が利用者の肌等に触れたりすると不快感を与えてしまうという問題があった。また、最近では電動送風機５２の高出力化によって消費電力が１ＫＷと高くなり、それに連れて排気温度も上昇して利用者の排気温度に対する不快感が増すという問題もあった。
【０００７】
さらに、排気の騒音を低減するために消音パイプ５９を長く形成しているが、その消音パイプ５９は本体５０の後面側から外部に突出した状態で設けられているため、電気掃除機全体が大型化してしまうとともに、消音パイプ５９の取付作業等も面倒であった。また、消音パイプ５９の排出口６０は、本体５０の下、つまり床面に近いところに位置されているので、排出口６０からの排気によって床面の塵埃を舞い上げてしまうという問題もあった。
【０００８】
本発明は、上記のような課題を解決するためになされたもので、電動送風機からの排気の温度の低温化および排気の騒音の減音化を図り、利用者への不快感を無くすとともに、排気による塵埃の舞い上げを防止して清掃性を高めることのできる電気掃除機を提供することを目的としたものである。
また、本発明は、排気を利用した電気掃除機本体の浮上構造及び電気掃除機本体と床用吸込み具を接続する接続体を改良した電気掃除機を提供することを目的としたものである。
【０００９】
【課題を解決するための手段】
本発明に係る電気掃除機は、内部に集塵部および電動送風機が設けられた掃除機本体と、塵埃を捕捉する床用吸込み具と、一端に前記床用吸込み具が連結される接続パイプ、および一端が取っ手を介して前記接続パイプに連結され他端が前記掃除機本体に連結されるホース部材からなる接続体と、前記ホース部材の他端に固着された吸塵パイプとその外周に設けた排気管からなり前記掃除機本体に着脱自在に接続される接続具と、該接続具の吸塵パイプと排気管との間に形成され前記電動送風機からの排気が通過する排気通路と、前記掃除機本体に設けられ前記排気通路に前記排気を導く連通路とを備え、前記排気管の清掃床面と対向しない位置に内外と連通する排気口を設けたものである。
【００１０】
本発明に係る電気掃除機は、内部に集塵部および電動送風機が設けられた掃除機本体と、塵埃を捕捉する床用吸込み具と、該床用吸込み具により捕捉された塵埃を外気と共に前記集塵部に吸引する接続パイプ、ホース部材から成る接続体と、吸塵パイプとその外周に設けた排気管からなり前記ホース部材の一端に接続されて前記掃除機本体に着脱自在に接続される接続具と、該接続具の吸塵パイプと排気管との間に形成され前記電動送風機からの排気が通過する排気通路と、前記掃除機本体に設けられ前記排気通路に前記排気を導く連通路とを備え、前記ホース部材を、屈曲自在の軟質材からなり一端が前記接続具の吸塵パイプに固着されて前記掃除機本体の集塵部に連通する吸気ホースと、該吸気ホースの他端に設けられた取っ手と、一端が自由端で他端が前記接続具に固着されて前記吸気ホースの少なくとも一部が内部に収容され、前記吸気ホースとの間に前記排気通路に連通する熱交換通路を形成する屈曲自在の排気ホースとによって構成し、該排気ホースに、電動送風機からの排気を前記熱交換通路より室内に排出する複数の排風口を設けたものである。
【００１３】
上記の排風口を、清掃床面と対向しない位置に設けた。
また、上記の排気ホースの自由端を、取っ手と着脱自在に形成した。
さらに、上記の排気ホースの内側に吸気ホースが収容され、前記排気ホースと吸気ホースとの間に熱交換通路が形成されるように二重管で構成した。
【００１４】
上記の吸気ホースを、その取っ手の吸引口を閉口することにより長軸方向において電動送風機の負圧力により収縮する構成とした。
また、上記の排気ホースを、その収縮時において排気ホース内に収縮されるように構成した。
【００１５】
上記の排気ホースを、その長軸方向において外力によい伸縮自在に構成した。
【００１６】
上記の接続パイプに、熱交換通路に連通する排気口を設けた。
また、室内の浮遊する塵埃を外気と共に吸引する外気吸込口を接続するパイプに設け、前記外気を少なくとも床用吸込み具を介して集塵部に吸引させるようにした。
【００１７】
上記の本発明に係る電気掃除機は、接続体より排出される排気を、電動送風機の電動機を冷却しない排気とした。
上記の掃除機本体の底部に、電動送風機からの排気により前記掃除機本体を床面より浮上させるスカート、排気入口等からなる浮上部材を設け、前記排気を、前記浮上部材により掃除機本体を浮上後又は浮上と共に接続体の排気口より室内に排出するようにした。
【００１８】
【発明の実施の形態】
［実施の形態１］
図１は本発明の実施の形態１に係る掃除機本体の縦断面図、図２はその要部の拡大断面図、図３は本発明の実施の形態１の使用状態を示す模式図である。
図において、１は電気掃除機の本体で、床用吸込み具２が接続体６を介して接続されている。この接続体６は、一端に床用吸込み具２が連結される接続パイプ３と、一端が取っ手４を介して接続パイプ３の他端に連結され、他端が本体１に連結されるホース部材５とによって構成されており、接続体６はホース部材５の他端に設けられたラッチ７によって本体１に着脱自在に取り付けられる。
【００１９】
図１において、８は本体１内の前方側に形成された集塵室で、上部に本体１の前方上面を開放する開閉蓋９が設けられている。１３は本体１内の集塵室８の前方に形成された排気前室で、その前面に接続体６のホース部材５の他端側が挿入支持されるホース差込口１４が設けられ、後面に集塵室８に連通する開口部１０が設けられている。そして、開口部１０には集塵室８に収容される通気性を有する集塵袋の如き集塵体１２を備えた厚紙よりなる台紙１１が着脱自在に取り付けられ、台紙１１によって開口部１０が閉塞されるとともに、集塵室８と排気前室１３とが仕切られている。なお、集塵体１２は遠心分離機等により塵埃を捕集するためのサイクロン集塵器等でもよく、その方式には特にこだわらない。また、排気前室１３の前面の隙間等には吸音材１８が取り付けられている。
【００２０】
１５は本体１内に設けられた通気孔を有する仕切壁１５ａによって本体１内の後方側に形成された電動機室で、電動送風機１６が収容されている。１７は本体１内の電動機室１５の後方に形成された排気後室で、その前面に電動機室１５と連通する連通孔１７ａが設けられており、内面には吸音材１８が取り付けられている。１９は本体１内の底部に設けられた連通路で、一端が排気後室１７に連通され、他端が排気前室１３に連通されており、その下部側の内面には吸音材１８が取り付けられている。なお、１ａは前車輪、１ｂは一対の後車輪で、両者１ａ，１ｂとも本体１の下部に取り付けられている。
【００２１】
接続体６のホース部材５は、図３に示すように、屈曲自在の軟質材により構成された吸気ホース２０と、その一端に設けられた取っ手４と、他端に設けられた接続具２１とによって構成されている。この接続具２１は、図１および図２に示すように、一端のホース吸気口２２ａ側に吸気ホース２０の端部が嵌入して固着され、他端のホース排気口２２ｂが台紙１１を貫通して集塵体１２内に挿入される吸塵パイプ２３と、吸塵パイプ２３の外周部の吸気ホース２０が固着された端部近傍から接続具２１をホース差込口１４に挿着したときに排気前室１３内に位置する部分まで形成され、排気前室１３側の端部に排気前室１３に連通する排気入口２４を有し、吸塵パイプ２３の外周壁との間に排気通路２５を形成する排気管２６と、排気管２６の上部にばね２８により上下動自在に支持され、本体１のホース差込口１４にホース部材５（接続具２１）を着脱自在に接続するラッチ７を有するラッチ部２９とによって構成されている。
【００２２】
また、排気管２６の吸気ホース２０側および周壁には排気通路２５と本体１外を連通する複数の排気口２７が設けられており、各排気口２７はそこから排出される排気が直接床面Ｘに吹き付けられない位置に設けられている。そして、吸塵パイプ２３のホース排気口２２ｂ側の外周には、後面側が台紙１１に弾接し、台紙１１に設けられた貫通穴をシールするシール部材３０が設けられており、排気管２６の排気通路２５の内面には吸音材を兼ねた排気フィルター３１が取り付けられている。なお、図１および図２の矢印Ａは本体１等における空気（排気）の流れを示す。
【００２３】
このように構成した実施の形態１においては、本体１のホース差込口１４に床用吸込み具２を連結した接続体６のホース部材５の接続具２１を接続して、接続体６の取っ手４の近傍に設けられた電源スイッチ（図示せず）を入れ、電動送風機１６を駆動させると、室内の空気は、床面Ｘ上の塵埃とともに床用吸込み具２から接続パイプ３およびホース部材５からなる接続体６を介して本体１内に吸い込まれ、さらに塵埃のみ集塵体１２に捕獲される。このとき、塵埃とともに本体１内に吸い込まれた空気（以下、吸塵空気という）は、集塵体１２で清浄化されて電動送風機１６内に入り、電動送風機１６を冷却して高温排気となって排気後室１７に送られる。ついで、高温排気は連通路１９を通って排気前室１３に送られ、排気管２６の排気通路２５を通って排気口２７から室内に排出される。
【００２４】
このとき、高温排気は連通路１９、特に集塵室８に対応する連通路１９および内部を吸塵空気が通過している接続具２１の吸塵パイプ２３などによって熱交換され、室温に近い温度に下げられてから室内に排出される。また、排気管２６に設けられた各排気口２７は排出される排気が直接床面Ｘに吹き付けられない位置に設けられているため、室温に下げられた排気によって床面Ｘ上の塵埃を舞い上げることはない。さらに、電動送風機１６からの高速排気流は、排気後室１７、連通路１９、排気前室１３および排気通路２５のマフラー効果によって除々に減速されるとともに、これらに取り付けられた吸音材１８および排気フィルター３１によって排気の騒音は低減される。
【００２５】
このように、本体１内に排気後室１７、連通路１９および排気前室１３を設けるとともに、本体１に床用吸込み具２を接続する接続体６のホース部材５の接続具２１を２重管に形成してその一方を排気管２６とし、本体１内に塵埃とともに吸い込まれて電動送風機１６を冷却して高温となった空気（高温排気）を、排気後室１７、連通路１９、排気前室１３および排気管２６（排気通路２５）を介して排気口２７から室内に排出するのようにしたので、連通路１９および接続具２１の２重管の他方で内部を吸塵空気が通過する吸塵パイプ２３等によって、高温排気を熱交換して室温に近い温度に下げて排出することができ、排気の低温化を図ることができる。これにより、排出された排気が利用者の肌等に触れても不快感を与えることおそれはない。
【００２６】
また、排気口２７をそこから排出される排気が直接床面Ｘに吹き付けられない位置に設けたので、室温近くに下げられた排気による床面Ｘ上の塵埃の舞い上げを防ぐことができ、清掃性の高い電気掃除機を得ることができる。
【００２７】
さらに、排気は、排気後室１７、連通路１９、排気前室１３および排気管２６（排気通路２５）を通って排出されるとともに、これらに吸音材１８および排気フィルター３１を取り付けたので、これらを通過する排気の騒音の減音化を図ることができ、静音性の高い電気掃除機を得ることができる。
【００２８】
［実施の形態２］
図４は本発明の実施の形態２の要部の拡大断面図で、この実施の形態２は、実施の形態１に係る接続体６のホース部材５の接続具２１において、吸気ホース２０の端部が固着された固着部を省略して吸気ホース２０の端部を吸塵パイプ２３のホース吸気口２２ａ側の内周部に固着するとともに、筒状に形成された排気管２６のホース吸気口２２ａ側でかつ吸気ホース２０の端部の外周部側に、その内部に吸気ホース２０が収納される所定の長さを有し、軸方向に伸縮自在な軟質材によって構成された排気ホース３２を設けたものである。
【００２９】
排気ホース３２は、一端が排気管２６の排気入口２４と対向する端部である排気出口３３側の内周部に固着され、他端にその他端が固着されほぼ中心部に吸気ホース２０が挿通する挿通穴３４ａを有する平面ほぼ矩形状の端板３４が設けられており、排気ホース３２を吸気ホース２０に沿って伸ばすことにより、吸気ホース２０との間に排気通路２５に連通する熱交換通路３５が形成される。また、排気ホース３２の周壁には熱交換路３５と本体１外（したがって室内）とを連通する排風口３６ａが設けられ、吸気ホース２０と挿通穴３４ａの周縁との間にはその隙間によって形成される排風口３６ｂが設けられている。そして、排風口３６ａ，３６ｂは、そこから排出される排気が直接床面Ｘに吹き付けられない位置に設けらていおり、端板３４に近接して設けることが望ましい。また、各排風口３６ａ，３６ｂを全て合わせた開口面積は、吸気ホース２０の縦断面開口面積よりも大きく形成され、排気流の速度が減速されるようになっている。なお、この実施の形態２では排気管２６の排気口２７は省略されている。
【００３０】
上記の排気ホース３２に形成される排風口３６ａ，３６ｂは、開口部を細かいメッシュ状に形成してもよい。
また、排気ホース３２全体をメッシュ状に形成してもよい。すなわち、全体を通気材で構成することがより望ましく、その場合は、床面Ｘ側にコーティング処理などを施して非通気性とすれば、排出される排気による床面Ｘ上の塵埃等の舞い上りを防止することができる。なお、排気ホース３２に設ける排風口３６ａ，３６ｂは、掃除機本体１より遠い位置に、すなわち、取っ手４に近づくにしたがってその開口面積や数を増やすことにより、排気による床面からの塵埃の舞い上りを防止するようにしてもよい。排風口３６ａ，３６ｂをメッシュ状にした場合でも、その開口面積を変化させれば同様の効果が得られる。なお、上記のように構成しても、使用時には取っ手４は床面から遠い位置になるので、床面に対する影響はほとんどない。
【００３１】
このように構成した本実施の形態においても、実施の形態１で説明した場合と同様に、床用吸込み具２から接続体６を介して塵埃とともに本体１内に吸い込まれた空気（吸塵空気）は、集塵体１２で清浄化されて電動送風機１６に入り、電動送風機１６を冷却して高温排気となって排気後室１７に送られる。ついで、高温排気は、連通路１９、排気前室１３および排気管２６の排気通路２５を通って排気ホース３２の熱交換通路３５に送られ、排風口３６ａ，３６ｂから室内に排出される。
【００３２】
このとき、高温排気は、排気後室１７、連通路１９、排気前室１３および排気通路２５を通過する際に熱交換されて室温に近い温度に下げられるとともに、熱交換通路３５の通過時において、内部を吸塵空気が通過している吸気ホース２０によって熱交換され、さらに室温に近い温度に下げられてから室内に排出される。また、吸塵空気流に伴って発生する吸気音（騒音）は、排気が通過する排気通路２５および熱交換通路３５とその排気流とによって遮蔽され、減音される。さらに、排気ホース３２に設けられた排風口３６ａ，３６ｂは排出される排気が直接床面Ｘに吹き付けられない位置に設けられているため、室温近くに下げられた排気によって床面Ｘ上の塵埃を舞い上げることはない。また、電動送風機１６からの高速排気流は、排気後室１７、連通路１９、排気前室１３、排気通路２５および熱交換通路３５のマフラー効果によって除々に減速されるとともに、排気後室１７、連通路１９、排気前室１３および排気管２６に取り付けられた吸音材１８および排気フィルター３１によって排気の騒音は低減される。なお、排気ホース３２の内周面に排気フィルター３１を設ければ、静音効果をより高めることができる。
【００３３】
このように、本体１内に排気後室１７、連通路１９および排気前室１３を設けるとともに、本体１に床用吸込み具２を接続する接続体６のホース部材５の接続具２１に、不使用時には吸気ホース２０を収納し、使用時には吸気ホース２０との間に熱交換通路３５を形成する排気ホース３２を設けたので、排気後室１７、連通路１９、排気前室１３および排気通路２５によって高温排気を熱交換して室温に近い温度に下げるとともに、熱交換通路３５において、ある程度室温に近い温度に下げられた排気を内部を吸塵空気が通過する吸気ホース２０によって熱交換することができ、より室温に近い温度に下げて排出することができ、また、排気が熱交換される熱交換通路３５をより長く形成することで排気の低温化を確実に図ることができる。これにより、利用者に排気温度に対する不快感を与えるおそれのない電気掃除機を得ることができる。また、不使用時には排気ホース３２内に吸気ホース２０を収納できるので、吸気ホース２０のコンパクト化が図れ、不使用時の電気掃除機の収納性を高めることができる。
【００３４】
また、接続具２１に排気ホース３２を設けたので、吸気ホース２０とともに２重管を形成することができ、吸塵空気流に伴って発生する騒音を排気が通過する排気管２６の排気通路２５および排気ホース３２の熱交換通路３５とその排気流とによって遮蔽することができる。これにより、騒音を減音することができ、静音性の高い電気掃除機を得ることができる。
【００３５】
さらに、排風口３６ａ，３６ｂをそこから排出される排気が直接床面Ｘに吹き付けられない位置でかつ端板３４に近接して設けたので、室温近くに下げられた排気による床面Ｘ上の塵埃の舞い上げを防ぐことができ、清掃性の高い電気掃除機を得ることができる。また、各排風口３６ａ，３６ｂを全て合わせた開口面積を、吸気ホース２０の縦断面開口面積よりも大きく形成したので、排気流の速度を減速することができ、排気の騒音の減音化が図れ、騒音による不快感を減少させることができる。
【００３６】
［実施の形態３］
図５は本発明の実施の形態３に係る掃除機本体の縦断面図である。なお、実施の形態１，２と同じ部分にはこれと同じ符号を付し、説明を省略する。
図において、１６ａは内部に電動送風機１６の送風用ファン（図示せず）が収用された送風用ファンケースで、外周には複数の排気口１６ｂが設けられており、支持部材１５ｂにより仕切り壁１５ａに近接して電動機室１５内に設置されている。１７ｂは電動機室１５と排気後室１７との間に設けられた隔壁、１８ａは電動送風機１６の電動機の周囲を包囲して設けられた吸音材である。
【００３７】
本体１の底部に設けられた連通路１９は、電動機室１５の底板と底部との間に設けられた通気口を有する隔壁１９ｂによって連通路１９と後部連通路１９ａとに分けられており、連通路１９は隔壁１９ｃに設けた排気口を介して排気前室１３に連通し、また送風用ファンケース１６ａの排気口１６ｂとは、電動機室１５の底板に設けた排気口１５ｃにより連通している。
また、後部連通路１９ａは、排気口を介して電動機室１５及び排気後室１７と連通している。なお、１ｄは本体１の後壁に設けた本体排気口である。
【００３８】
上記のように構成した本実施の形態において、床用吸込み具２から吸い込まれた塵埃を含む空気は、接続体６を介して本体１内に吸い込まれ、塵埃のみが集塵体１２内に捕獲される。一方、塵埃と共に本体１内に吸い込まれた空気は、集塵体１２で清浄化されて送風用ファンケース１６ａ内に入り、その一部は排気口１６ｂから排出され、排気口１５ｃから連通路１９内に排出される。そして、隔壁１９ｃの排気口、排気前室１３、排気通路２５、排気口２７を経て排気ホース３２の熱交換通路３５に送られ、排風口３６ａ，３６ｂから室内に排出される。
【００３９】
また、送風用ファンケース１６ａ内に入った空気の一部は電動機側に分流し、電動機を冷却して高温排気となり、その排気口から吸音材１８ａを通過して底板に設けた排気口から後部連通路１９ａに送り込まれ、排気後室１７を経て本体排気口１ｄから室外に排出される。なお、送風用ファンケース１６ａの排気の一部は、隔壁１９ｂに設けた通気口から後部連通路１９ａに分流し、電動機室１５からの高温排気に合流してこれを冷却し、本体排気口１ａからの排気を低温化する。
【００４０】
本実施の形態によれば、集塵室８からの排気を送風機用ファンケース１６ａで分流することにより、排気ホース３２の排風口３６ａ，３６ｂから排出される排気は、高温化されないので使用者に不快感を与えることがなく、また、排気ホース３２までの排気通路が長く形成されているので静音化を図ることができる。さらに、排気を分流することで、排気ホース３２や本体排気口１ａから排出される排気量が分散されるため排気速度が低下し、騒音をさらに低減することができる。なお、上記の説明では、電動送風機１６のファンを送風用ファンケース１６ａ内に収用した場合を示したが、吸塵用ファンと電動機冷却用ファンとを別に設けてもよく、この場合も同様の効果を得ることができる。
【００４１】
［実施の形態４］
図６は本発明の実施の形態４に係る掃除機本体の縦断面図、図７は本発明に係る浮上部材を備えた掃除機本体の縦断面図およびその作用説明図である。本実施の形態は、実施の形態１に係る本体１において、その底部の連通路１９のほぼ中間部および排気前室１３に対応する位置に、本体１外と連通する開口部３７ａ，３７ｂを設け、その開口部３７ａ，３７ｂに対応する位置に開放すると連通路１９が本体１の外部と連通して連通路１９の一部を閉塞し、閉塞すると連通路１９の本体１の外部との連通が遮断する切換弁３８ａ，３８ｂをそれぞれ設けるとともに、本体１の底部に、切換弁３８ａ，３８ｂを開放させ、本体１内からの排気圧によって本体１を浮上させる浮上部材３９を着脱自在に設けたものである。
【００４２】
浮上部材３９は、その本体部の平面形状が本体１の底部にほぼ対応する形状で、周縁部に本体１の側部下方に嵌合する周壁４０が立設されており、周壁４０の内周面に本体１の側部に設けた係合部１ｃに係合する係止突起４０ａが設けられている。そして、浮上部材３９を本体１の底部に装着したときの本体部の切換弁３８ａ，３８ｂに対応する位置に、切換弁３８ａ，３８ｂをそれぞれ連通路１９側に押し上げ、開口部３７ａ，３７ｂを開放して本体１外と連通させ開口部３７ａと開口部３７ｂの間の連通路１９を閉塞する突出部４１ａ，４１ｂと、開口部３７ａ，３７ｂに連通する排気穴４２ａ，４２ｂがそれぞれ設けられており、排気穴４２ａの下部には本体１内からの排気を本体１外の後方へ導く排気入口４３が設けられ、排気穴４２ｂの下部外周部には排気穴４２ｂに連通し本体１外の排気を排気前室１３へ導く軟質材で筒状の排気出口４４が設けられている。また、浮上部材３９の本体部の下面周縁部には、前車輪１ａ、後車輪１ｂ、排気入口４３および排気出口４４等を取り囲み、本体１と床面Ｘとの間の空間によって外部排気通路４６を形成する軟質材のスカート４５が設けられており、本体１が排気圧によって浮上したときにスカート４５の下端部側に弛みが生じる長さに形成されている。
【００４３】
このように構成した本実施の形態においては、まず、図７に示すように、浮上部材３９を本体１の底部に装着し、その突出部４１ａ，４１ｂによって切換弁３８ａ，３８ｂを押し上げて開口部３７ａ，３７ｂを開放する。ついで、電動送風機１６を駆動して掃除を開始すると、室内の空気が床面Ｘ上の塵埃とともに床用吸込み具２から接続体６を介して本体１内に吸い込まれ、塵埃のみ集塵体１２に捕獲される。そして、本体１内に吸い込まれた吸塵空気は、集塵体１２で清浄化されて電動送風機１６内に入り、電動送風機１６を冷却して高温排気となって排気後室１７に送られる。ついで、連通路１９に送られた高温排気は、その連通路１９の途中で開放された開口部３７ａ、排気穴４２ａおよび排気入口４３を通って外部排気通路４６に送られる。このとき、本体１からの高温排気は、浮上部材３９のスカート４５によって囲まれている外部排気通路４６に排出されることにより一定の圧力を生じ、本体１は浮上する。浮上した本体１は軽くなり電気掃除機の走行性をよくする。また、スカート４５は、外部排気通路４６に排出された排気によるその床面Ｘ上の塵埃のスカート４５外へのまき散らしを防ぐ。
【００４４】
次に、一旦外部排気通路４６に排出された高温排気は、外部排気通路４６で熱交換されて低温化した後、排気出口４４から排気穴４２ｂおよび開口部３７ｂを通って排気前室１３に送られ、排気管２６の排気通路２５を通って排気口２７から室内に排出される。このとき、外部排気通路４６で低温化された排気は、内部を吸塵空気が通過している接続具２１の吸塵パイプ２３などによってさらに熱交換され、より室温に近い温度に下げられてから室内に排出される。
【００４５】
なお、浮上部材３９を装着せずに掃除を行う場合は、図６に示すように、切換弁３８ａ，３８ｂによって開口部３７ａ，３７ｂが閉塞されるので、実施の形態１とほぼ同じ作用および効果が得られる。
【００４６】
このように、本体１の底部に、切換弁３８ａ，３８ｂを開放させ、本体１内からの排気圧によって本体１を浮上させるとともに、本体１の底部と床面Ｘとの間に外部排気通路４６を形成する浮上部材３９を装着するようにしたので、広い空間である外部排気通路４６によって高温排気を効率よく熱交換して低温化することができ、吸塵パイプ２３等による熱交換とともにより室温に近い温度に下がった排気の排出を行うことができる。これにより、利用者に排気温度に対する不快感を与えるおそれのない電気掃除機を得ることができる。また、浮上部材３９によって本体１を浮上させることができ、使用時の本体１を軽くしてその走行性をよくすることができる。
【００４７】
図８は本実施の形態の他の例の掃除機本体の縦断面図で、図には前車輪及び後車輪は省略してある。なお、実施の形態３（図５）及び図５、図６と同じ部分にはこれと同じ符号を付し、説明の一部を省略する。
本例の本体１の底部には、連通路１９に連通し、開閉弁３８ｃで開閉される排気入口３７ｃが設けられている。
【００４８】
また、浮上部材３９の排気入口３７ｃに対応する位置には、開閉弁３８ｃを開閉する操作突起３９ａが設けられており、その底部には外方に傾斜した複数の静圧口３９ｂが設けられて、本体１の底部との間に均圧室４７を形成している。なお、開閉弁３８ｃは常時は排気入口３７ｃを閉塞しているが、本体１の底部に浮上部材３９を装着すると、操作突起３９ａが開閉弁３８ｃを押し上げて排気入口３７ｃを開放する。また、スカート４５の中央部には大きな開口部４５ａが設けられており、その外周が浮上部材３９に装着されて、浮上部材３９と床面Ｘとの間に浮上空間４８が形成される。
【００４９】
上記のように構成した本例においては、電動送風機１６を冷却した排気は、連通孔１７ａ、排気後室１７を経て連通路１９に送られ、排気前室１３、排気通路２５、排気口２７を経て排気ホース３２の排風口３６ａ，３６ｂから室内に排出される。
また、連通路１９内の排気の一部は、電動送風機１６の圧力により排気入口３７ｃから均圧室４７に分流して均圧化され、静圧となって静圧口３９ｂから浮上空間４８内に流入し、浮上空間４８内の圧力を上昇させて本体１を浮上させる。そしてスカート４５は浮上空間４８内の圧力により床面Ｘに圧着される。
このとき、浮上空間４８には静圧が働き、その中の塵埃等は連通路１９に侵入しないので、排気ホース３２の排風口３６ａ，３６ｂから塵埃等が排出したりフィルタが目詰りするようなことはない。
【００５０】
掃除が終って電動送風機１６が停止すると、連通路１９内の排気が無くなって無圧状態になるので、浮上空間４８内の排圧は静圧口３９ｂ、排気入口３７ｃ、連通路１９を経て排気ホース３２の排風口３６ａ，３６ｂから排出され、本体１は下降する。
なお、浮上部材３９を装着せずに掃除を行う場合は、開閉弁３８ｃが排気入口３７ｃを閉塞するので、実施の形態１，２の場合とほぼ同様に掃除を行うことができる。
本例においても、図６、図７の場合と同様の効果を得ることができる。
【００５１】
［実施の形態５］
図９は本発明の実施の形態５に係る電気掃除機の説明図である。なお、実施の形態１〜４と同じ部分にはこれと同じ符号を付し、説明を省略する。
図９において、４ａは接続体６の取っ手４の吸気ホース２０の接続部に設け排気ホース３２の嵌合固定部、３２ａは伸縮自在の排気ホース３２の自由端に設けられ、取っ手４の嵌合固定部４ａに着脱自在に嵌合されて固定される嵌合部である。なお、排気ホース３２には、実施の形態２で説明したように、複数の排風口３６ａ，３６ｂが設けられており、また、接続パイプ３には、接続パイプ３とは独立し、排気ホース３２を取っ手４に連結したときにその熱交換通路３５と連通する排気口３ａが設けられている。
【００５２】
上記のように構成した本実施の形態において、図９（ａ）に示すように、排気ホース３２を収縮した状態で取っ手４の近傍に設けた電源スイッチをＯＮすると、実施の形態１，２で説明した場合と同様に、床用吸込み具２から接続体６を介して塵埃ととともに本体１内に吸込まれた空気は、集塵体１２で清浄化されて電動送風機１６に入り、電動送風機１６を冷却して高温排気となり、排気後室１７に送られる。ついで、高温排気は、連通路１９、排気前室１３および排気管１６の排気通路２５を通って排気ホース３２の熱交換通路３５に送られ、排風口３６ａ，３６ｂから室内に排出される。
この場合の作用、効果は実施の形態２の場合とほぼ同様であるが、排気ホース３２が空気ホース２０の全体を覆っていないため、掃除中に吸気ホース２０が屈曲し易く、掃除が楽である。
【００５３】
図９（ｂ）は排気ホース３２を伸張してその嵌合部３２ａを取っ手４に設けた嵌合固定部４ａに嵌合して固定し、吸気ホース２０の全体を覆って二重管としたものである。
この場合の作用、効果も実施の形態２の場合と同様であるが、排気ホース３２が伸張して取っ手４に連結されているので、接続パイプ３に設けた排気口３ａからも排気を排出することができ、さらに、排風口３６ａの面積が拡大されて排気速度が低下するため、静音化をより高めることができる。また、熱交換通路３５を通過する排気と、接続体６内を通過する吸気流との熱交換も有利になり、室内に排出される排気温度をさらに低下させることができる。なお、排気ホース３２に螺旋状のピアノ線等を設けておけば、確実に伸縮することができる。
【００５４】
［実施の形態６］
図１０は本発明の実施の形態６に係る電気掃除機の説明図である。なお、実施の形態５と同じ部分にはこれと同じ符号を付し、説明を省略する。
電気掃除機を用いて掃除を行う場合、床用吸込み具の操作に伴い室内に塵埃が舞い上って空中に浮遊し、掃除をする人がこの塵埃を吸うため、好ましくなかった。本実施の形態はこのような問題を解決するためになされたものである。
【００５５】
図において、３ｂは接続パイプ３の外周に設けた外気吸込み口で、この外気吸込み口３ｂは、接続パイプ３及び排気ホース３２の熱交換通路３５とは独立しており、床用吸込み具２の底部に設けた開口部（図示せず）に連通している。なお、その他の構成は、実施の形態５同様である。
【００５６】
上記のように構成した本実施の形態において、掃除の際排気ホース３２を収納し、又は伸張して取っ手４と連結すること、床用吸込み具２により床面から空気と共に塵埃を吸引して本体１に送り、その排気を排気ホース３２から室内に排出する作用は、実施の形態５の場合と同様である。
本実施の形態においては、このとき室内に舞い上って空中に浮遊する塵埃が、電動送風機１６の吸引力により外気と共に外気吸込み口３ｂから吸引されて床用吸込み具２の下部の床面に衝突し、床面の塵埃を舞上がらせながら床用吸込み具２が吸引した外気と合流し、床面上の塵埃と空気中の塵埃とを接続具６を経て本体１に送り込む。
【００５７】
本実施の形態によれば、掃除の際室内に舞い上って空中に浮遊する塵埃を外気と共に吸引し、床面上の塵埃と共に本体１に送り込まれるので、室内を常に清潔に保つことができ、健康上も有益である。
なお、上記の説明では、外気吸込み口３ｂを、接続パイプ３及び排気ホース３２の熱交換通路３５と独立し、床用吸込み口２に連通させた場合を示したが、床用吸込み具２とは連通せず、接続パイプや取っ手４の吸込み通路に直接連通するように設けてもよい。
【００５８】
［実施の形態７］
図１１は本発明の実施の形態７に係る電気掃除機の要部の説明図である。なお、実施の形態５，６と同じ部分にはこれと同じ符号を付し、説明を省略する。
本実施の形態は、掃除終了後電動送風機１６を停止させる前に、接続パイプ３を取っ手４から外して取っ手４の吸引口４ｂをシート材５０や手などによって閉口する。これにより、伸縮自在の吸気ホース２０に負圧がかかり、吸気ホース２０が収縮して排気ホース３２内に収納される。そして、図１１（ｂ）に示すように、取っ手４の嵌合固定部４ａを排気ホース３２の嵌合部３２ａに嵌合するようにしたものである。勿論、電動送風機１６を停止させたのち接続パイプ３を取っ手４から外し、電動送風機１６を再起動させてもよい。
【００５９】
電気掃除機を再使用する場合は、排気ホース３２と取っ手４との嵌合を外せば、吸気ホース２０はそのばね力により、図１１（ａ）に示すように再び伸張する。
本実施の形態によれば、長い吸気ホース２０が短縮されてコンパクト化されるので、本体１を保管、格納する際に便利である。
【００６０】
以上本発明の実施の形態について説明したが、本発明はこれに限定するものではなく、各実施の形態を適宜組合わせて実施することができる。
【００６１】
【発明の効果】
本発明は、内部に集塵部および電動送風機が設けられた掃除機本体と、塵埃を捕捉する床用吸込み具と、該床用吸込み具により捕捉された塵埃を外気と共に前記集塵部に吸引する接続パイプ、ホース部材等から成る接続体と、吸塵パイプとその外周に設けた排気管からなり前記ホース部材の一端に接続されて前記掃除機本体に着脱自在に接続される接続具と、該接続具の吸塵パイプと排気管との間に形成され前記電動送風機からの排気が通過する排気通路と、前記掃除機本体に設けられ前記排気通路に前記排気を導く連通路とを備え、前記排気通路の清掃床面に吹き付けられない位置に内外と連通する排気口を設けたので、電動送風機を冷却して高温となった排気を、連通路および排気通路において熱交換して低温化を図ることができるとともに、排気流を連通路および排気通路のマフラー効果によって除々に減速させて排気の騒音の減音化を図ることができ、排出される排気の利用者への不快感を抑えることができる電気掃除機が得られる。
【００６４】
本発明は、内部に集塵部および電動送風機が設けられた掃除機本体と、塵埃を捕捉する床用吸込み具と、該床用吸込み具により捕捉された塵埃を外気と共に前記集塵部に吸引する接続パイプ、ホース部材等から成る接続体と、該接続体に設けられ前記電動送風機からの排気を導く排気通路と、前記掃除機本体に設けられ前記排気通路に前記排気を導く連通路とを備え、前記ホース部材を、屈曲自在の軟質材からなり掃除機本体の集塵部に連通する吸気ホースと、該吸気ホースの一端に設けられた取っ手と、他端に設けられた接続具と、一端が自由端で他端が前記接続具に固着されて前記吸気ホースの少なくとも一部が内部に収容され、前記吸気ホースとの間に前記排気通路に連通する熱交換通路を形成する屈曲自在の排気ホースとによって構成し、該排気ホースに、電動送風機からの排気を前記熱交換通路より室内に排出する複数の排風口を設けたので、電動送風機の冷却によって高温となった排気が掃除機本体以外に排出されるまでの距離を長くすることができ、高温の排気の低温化を確実に図ることができる。これにより、排出される排気の使用者への不快感を無くすことができる。また、吸気ホースを通過する吸塵空気流に伴って発生する騒音を排気が通過する排気通路および熱交換通路とその排気流によって遮蔽することができ、騒音の減音化を図ることができる。これにより、静音性の高い電気掃除機を得ることができる。
【００６５】
上記の排風口を清掃床面と対向しない位置に設けたので、排風口から排出される排気による床面上の塵埃が舞い上がるのを防止することができる。
【００６６】
上記の排気ホースの自由端を取っ手と着脱自在に形成し、
また、排気ホースの内側に吸気ホースが収容され、排気ホースと吸気ホースとの間に熱交換通路が形成されるように二重管で構成したので、必要に応じて排気ホースを取っ手に接続して二重管構造とすることにより、電動送風機によって高温になった排気を長い熱交換通路で熱交換して低温化することができ、排気による使用者の不快感をなくすことができる。
【００６７】
上記の吸気ホースを、その取っ手の吸引口を閉口することにより長軸方向において電動送風機の負圧力により収縮する構成とし、
さらに、排気ホースを、その長軸方向において外力により伸縮自在に構成し、
また、吸気ホースを、その収縮時において排気ホース内に収納しうるように構成したので、熱交換通路の長さを任意に変更することができ、また必要に応じて吸気ホースを排気ホース内に収縮すれば、掃除機本体がコンパクト化されて保管、格納等の場合に便利である。
【００６８】
上記の接続パイプに、前記熱交換通路に連通する排気口を設けたので、排気通路が長くなって排気の熱交換がさらに有利となり、排気温度をさらに低下させることができる。
【００６９】
室内の浮遊する塵埃を外気と共に吸引する外気吸込口を接続するパイプに設け、外気を少なくとも床用吸込み具を介して集塵部に吸引させるようにしたので、室内を常に清潔に保つことができ、健康上も有効である。
【００７０】
上記の接続体より排出される排気を、電動送風機の電動機を冷却しない排気としたので、使用者の近傍には室温とほぼ等しい温度の排気が排出されるため、使用者に不快感を与えることがない。
上記の掃除機本体の底部に、電動送風機からの排気により前記掃除機本体を床面より浮上させるスカート、排気入口等からなる浮上部材を設け、前記排気を、前記浮上部材により掃除機本体を浮上後又は浮上と共に接続体の排気口より室内に排出するようにしたので、電動送風機の冷却によって高温になった排気を浮上部材や床面により効率よく低温化することができ、室温に近い温度の排気を排出することができる。
また、排気を利用して掃除機本体を浮上させるようにしたので、使用時の掃除機本体を軽くしてその走行性を向上させることができる。
【図面の簡単な説明】
【図１】本発明の実施の形態１に係る掃除機本体の縦断面図およびその作用説明図である。
【図２】図１の要部の拡大断面図およびその作用説明図である。
【図３】本発明の実施の形態１の使用状態を示す模式図である。
【図４】本発明の実施の形態２の要部の拡大断面図および作用説明図である。
【図５】本発明の実施の形態３に係る掃除機本体の縦断面図およびその作用説明図である。
【図６】本発明の実施の形態４に係る掃除機本体の縦断面図およびその作用説明図である。
【図７】実施の形態４に係る浮上部材を備えた掃除機本体の縦断面図およびその作用説明図である。
【図８】実施の形態４の他の例の浮上部材を備えた掃除機本体の縦断面図およびその作用説明図である。
【図９】本発明の実施の形態５に係る電気掃除機の説明図およびその作用説明図である。
【図１０】本発明の実施の形態６に係る電気掃除機の説明図およびその作用説明図である。
【図１１】本発明の実施の形態７に係る電気掃除機の説明図およびその作用説明図である。
【図１２】従来の電気掃除機の要部の断面図である。
【符号の説明】
１本体、１ｄ本体排気口、２床用吸込み具、３接続パイプ、４取っ手、５ホース部材、６接続体、８集塵室、１２集塵袋、１５電動機室、１５ｃ排気口、１６電動送風機、１６ａ送風用ファンケース、１６ｂ排気口、１８吸音材、１９連通路、１９ａ後部連通路、２０吸気ホース、２１接続具、２３吸塵パイプ、２５排気通路、２６排気管、２７排気口、３１排気フィルター、３２排気ホース、３５熱交換通路、３６ａ，３６ｂ排風口、３７ａ，３７ｂ開口部、３８ａ，３８ｂ切換弁、３８ｃ開閉弁、３９浮上部材、３９ａ操作突起、３９ｂ静圧口、４０周壁、４１ａ，４１ｂ突出部、４３排気入口、４４排出出口、４５スカート、４６外部排気通路、４７均圧室、４８浮上空間、Ｘ床面。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum cleaner, and more particularly, a structure for lowering the temperature of an electric vacuum cleaner that lowers the temperature of exhaust from an electric blower built in the main body of the vacuum cleaner and reduces noise generated from the electric blower. And a mute structure.
The present invention also relates to a floating structure of a vacuum cleaner body and a connection body that connects the vacuum cleaner body and a floor suction tool.
[0002]
[Prior art]
As an example of an electric vacuum cleaner provided with a noise silencer structure of an electric blower, there is an invention disclosed in Japanese Patent Laid-Open No. 3-55020, and FIG. 12 shows a cross-sectional view of the main part of the electric vacuum cleaner.
[0003]
In the figure, reference numeral 50 denotes a main body of an electric vacuum cleaner having a moving wheel 51 on the bottom surface, and an electric blower 52 and the like incorporated therein, and the rear surface is close to the exhaust port 53 and can be opened or closed in a spring or sliding manner. A window hole 54 having a shutter 55 is provided. 57 is an exhaust passage provided at a position facing the window hole 54 of the partition wall 56, and a sealing rubber 58 is mounted on the inner edge.
[0004]
59 is a muffler pipe having a substantially U-shaped cross section in which one end is inserted into the exhaust passage 57 and the other end outlet 60 is rotatably and detachably mounted under the main body 50 and opened forward. The silencer 61 is attached to the inner surface of the bent portion and the discharge port 60. The arrows indicate the flow of exhaust from the electric blower 52.
[0005]
And when the vacuum cleaner comprised in this way is operated, all the air which came out of the electric blower 52 will be discharged | emitted out of the main body 50 through the muffler pipe 59. FIG. At this time, since the silencer pipe 59 has a long distance to the discharge port 60 and is provided with a silencer 61 inside, the high-speed exhaust flow is gradually decelerated by the muffler effect of the silencer pipe 59 and the noise of the exhaust is also reduced. Is done. Moreover, since the distance from the discharge port 60 located under the main body 50 to the user's ear is increased, and the sound is insulated by the main body 50, the silencing effect is improved.
[0006]
[Problems to be solved by the invention]
In the conventional vacuum cleaner as described above, since the muffler pipe 59 is lengthened and the outlet 60 is positioned below the main body 50, the noise of the exhaust from the electric blower 52 is reduced. However, the exhaust gas discharged from the high-power electric blower 52 is not only noise but also has a high temperature. Especially when the indoor air temperature is high such as in summer, the exhaust gas is uncomfortable if it touches the skin of the user. There was a problem of giving. Further, recently, there has been a problem that the power consumption is increased to 1 KW due to the high output of the electric blower 52, and the exhaust temperature is increased accordingly, which increases the user's discomfort with respect to the exhaust temperature.
[0007]
Furthermore, in order to reduce the noise of the exhaust, the muffler pipe 59 is formed long. However, since the muffler pipe 59 is provided in a state of protruding outward from the rear surface side of the main body 50, the entire vacuum cleaner is large. In addition, the installation work of the silencer pipe 59 is troublesome. Further, since the discharge port 60 of the muffler pipe 59 is located under the main body 50, that is, near the floor surface, there is a problem in that dust on the floor surface is raised by the exhaust from the discharge port 60. .
[0008]
The present invention has been made to solve the above-described problems, and is intended to reduce the temperature of the exhaust gas from the electric blower and reduce the noise of the exhaust gas. An object of the present invention is to provide a vacuum cleaner that can improve the cleanability by preventing the dust from rising due to exhaust.
Another object of the present invention is to provide a vacuum cleaner having an improved structure for floating a vacuum cleaner body using exhaust and a connecting body for connecting the vacuum cleaner body and a floor suction tool.
[0009]
[Means for Solving the Problems]
  A vacuum cleaner according to the present invention includes a vacuum cleaner main body provided with a dust collecting portion and an electric blower inside, a floor suction tool for capturing dust, and a connection pipe to which the floor suction tool is connected at one end, And a connection body composed of a hose member having one end connected to the connection pipe via a handle and the other end connected to the cleaner body,Fixed to the other end of the hose memberIt consists of a dust suction pipe and an exhaust pipe provided on its outer periphery.BeforeA connector that is detachably connected to the vacuum cleaner body, an exhaust passage that is formed between a dust suction pipe and an exhaust pipe of the connector, and through which exhaust from the electric blower passes, and provided in the cleaner body. The exhaust passage is provided with a communication passage that guides the exhaust, and an exhaust port that communicates with the inside and outside of the exhaust pipe is provided at a position not facing the cleaning floor surface of the exhaust pipe.
[0010]
  The electric vacuum cleaner according to the present invention includes a vacuum cleaner main body provided with a dust collection unit and an electric blower therein, a floor suction tool for capturing dust, and the dust captured by the floor suction tool together with outside air. A connection pipe consisting of a connection pipe and a hose member for sucking into the dust collecting part, and a connection consisting of a dust suction pipe and an exhaust pipe provided on the outer periphery thereof, connected to one end of the hose member and detachably connected to the cleaner body An exhaust passage formed between the dust suction pipe and the exhaust pipe of the connector, and an exhaust passage through which the exhaust from the electric blower passes, and a communication passage provided in the cleaner body and leading the exhaust to the exhaust passage. The hose member is made of a flexible material that can be bent.One end is fixed to the dust suction pipe of the connector and theAn intake hose communicating with the dust collecting part of the vacuum cleaner body, and the intake hoseotherA handle provided at an end, and heat that communicates with the exhaust passage between the intake hose and at least a part of the intake hose, with one end being a free end and the other end being fixed to the connector. A flexible exhaust hose forming an exchange passage is provided, and the exhaust hose is provided with a plurality of exhaust ports for exhausting the exhaust from the electric blower into the room through the heat exchange passage.
[0013]
UpThe air exhaust vent described above is provided at a position that does not face the cleaning floor.It was.
In addition, the free end of the exhaust hose is formed to be detachable from the handle.It was.
Further, the intake hose is accommodated inside the exhaust hose, and a double pipe is formed so that a heat exchange passage is formed between the exhaust hose and the intake hose.It was.
[0014]
  The intake hose aboveBy closing the handle's suction portIt was set as the structure shrink | contracted by the negative pressure of an electric blower in a major axis direction.
  Also, connect the exhaust hoseIt was comprised so that it might contract in an exhaust hose at the time of contraction.
[0015]
  The exhaust hoseStretchable with good external force in the long axis directionConfigured.
[0016]
  aboveCommunicates with the connection pipe to the heat exchange passageAn exhaust port was provided.
  Further, a pipe connected to an outside air suction port for sucking indoor floating dust together with outside air is provided so that the outside air is sucked into the dust collecting part through at least a floor suction tool.
[0017]
aboveIn the vacuum cleaner according to the present invention, the exhaust discharged from the connection body is an exhaust that does not cool the electric motor of the electric blower.It was.
The bottom of the vacuum cleaner body is provided with a levitation member including a skirt and an exhaust inlet that floats the vacuum cleaner body from the floor surface by exhaust from the electric blower, and the vacuum cleaner body is lifted by the levitation member. It was made to discharge into the room from the exhaust port of the connection body after or after floating.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
[Embodiment 1]
FIG. 1 is a longitudinal sectional view of a cleaner body according to Embodiment 1 of the present invention, FIG. 2 is an enlarged sectional view of an essential part thereof, and FIG. 3 is a schematic view showing a use state of Embodiment 1 of the present invention. .
In the figure, reference numeral 1 denotes a main body of a vacuum cleaner, to which a floor suction tool 2 is connected via a connection body 6. The connecting body 6 includes a connecting pipe 3 having one end connected to the floor suction tool 2, a hose member having one end connected to the other end of the connecting pipe 3 via the handle 4, and the other end connected to the main body 1. The connecting body 6 is detachably attached to the main body 1 by a latch 7 provided at the other end of the hose member 5.
[0019]
In FIG. 1, reference numeral 8 denotes a dust collection chamber formed on the front side in the main body 1, and an open / close lid 9 that opens the front upper surface of the main body 1 is provided at the top. 13 is a pre-exhaust chamber formed in front of the dust collection chamber 8 in the main body 1, and a hose insertion port 14 into which the other end side of the hose member 5 of the connection body 6 is inserted and supported is provided on the front surface, and a rear surface is provided. An opening 10 communicating with the dust collection chamber 8 is provided. A mount 11 made of cardboard having a dust collecting body 12 such as a breathable dust collection bag accommodated in the dust collection chamber 8 is detachably attached to the opening 10. While being closed, the dust collection chamber 8 and the exhaust front chamber 13 are partitioned. The dust collector 12 may be a cyclone dust collector or the like for collecting dust with a centrifugal separator or the like, and the method is not particularly limited. In addition, a sound absorbing material 18 is attached to a gap or the like on the front surface of the front exhaust chamber 13.
[0020]
Reference numeral 15 denotes an electric motor chamber formed on the rear side in the main body 1 by a partition wall 15a having a vent hole provided in the main body 1, and an electric blower 16 is accommodated therein. Reference numeral 17 denotes a rear exhaust chamber formed behind the electric motor chamber 15 in the main body 1. A communication hole 17 a communicating with the electric motor chamber 15 is provided on the front surface, and a sound absorbing material 18 is attached to the inner surface. Reference numeral 19 denotes a communication passage provided at the bottom of the main body 1, one end communicating with the exhaust rear chamber 17 and the other end communicating with the exhaust front chamber 13, and a sound absorbing material 18 is attached to the inner surface on the lower side. It has been. In addition, 1a is a front wheel, 1b is a pair of rear wheels, and both 1a and 1b are attached to the lower part of the main body 1.
[0021]
As shown in FIG. 3, the hose member 5 of the connection body 6 includes an intake hose 20 made of a flexible soft material, a handle 4 provided at one end thereof, and a connector 21 provided at the other end. It is constituted by. As shown in FIGS. 1 and 2, the connector 21 has an end of the intake hose 20 fitted and fixed to the hose intake port 22 a at one end, and the hose exhaust port 22 b at the other end penetrates the mount 11. When the connecting member 21 is inserted into the hose insertion port 14 from the vicinity of the end to which the dust suction pipe 23 to be inserted into the dust collector 12 and the suction hose 20 on the outer periphery of the dust suction pipe 23 are fixed. A portion located in the chamber 13 is formed and has an exhaust inlet 24 communicating with the pre-exhaust chamber 13 at an end on the exhaust pre-chamber 13 side, and an exhaust passage 25 is formed between the outer peripheral wall of the dust suction pipe 23. A latch portion having an exhaust pipe 26 and a latch 7 which is supported by a spring 28 on the upper portion of the exhaust pipe 26 so as to be movable up and down and detachably connects the hose member 5 (connector 21) to the hose insertion port 14 of the main body 1. 29.
[0022]
Further, a plurality of exhaust ports 27 communicating with the exhaust passage 25 and the outside of the main body 1 are provided on the intake hose 20 side and the peripheral wall of the exhaust pipe 26, and each exhaust port 27 is directly connected to the floor surface. It is provided at a position where X cannot be sprayed. A seal member 30 is provided on the outer periphery of the dust suction pipe 23 on the hose exhaust port 22b side so that the rear side is in elastic contact with the mount 11 and seals a through hole provided in the mount 11. An exhaust filter 31 that also serves as a sound absorbing material is attached to the inner surface of 25. 1 and 2 indicate the flow of air (exhaust gas) in the main body 1 and the like.
[0023]
In the first embodiment configured as described above, the connection tool 21 of the hose member 5 of the connection body 6 connected to the hose insertion port 14 of the main body 1 is connected to the handle 6 of the connection body 6. When a power switch (not shown) provided in the vicinity of 4 is turned on and the electric blower 16 is driven, the indoor air is connected to the connecting pipe 3 and the hose member 5 from the floor suction tool 2 together with dust on the floor surface X. Is sucked into the main body 1 through the connecting body 6, and only dust is captured by the dust collector 12. At this time, air sucked into the main body 1 together with dust (hereinafter referred to as dust-absorbed air) is cleaned by the dust collector 12 and enters the electric blower 16 to cool the electric blower 16 and become high-temperature exhaust. It is sent to the exhaust chamber 17. Next, the high-temperature exhaust is sent to the pre-exhaust chamber 13 through the communication passage 19, and is exhausted from the exhaust outlet 27 into the room through the exhaust passage 25 of the exhaust pipe 26.
[0024]
At this time, the high-temperature exhaust is heat-exchanged by the communication passage 19, particularly the communication passage 19 corresponding to the dust collection chamber 8, and the dust collection pipe 23 of the connector 21 through which dust-absorbing air passes, and the temperature is lowered to a temperature close to room temperature. And then discharged into the room. Further, each exhaust port 27 provided in the exhaust pipe 26 is provided at a position where the exhaust exhausted is not directly blown to the floor surface X, so that the dust on the floor surface X is fluttered by the exhaust lowered to room temperature. There is no increase. Further, the high-speed exhaust flow from the electric blower 16 is gradually decelerated by the muffler effect of the exhaust rear chamber 17, the communication passage 19, the exhaust front chamber 13 and the exhaust passage 25, and the sound absorbing material 18 attached to these and the exhaust Exhaust noise is reduced by the filter 31.
[0025]
As described above, the exhaust rear chamber 17, the communication passage 19, and the exhaust front chamber 13 are provided in the main body 1, and the connection member 21 of the hose member 5 of the connection body 6 that connects the floor suction tool 2 to the main body 1 is doubled. One of the pipes is used as an exhaust pipe 26, and air that has been sucked into the main body 1 together with dust to cool the electric blower 16 to a high temperature (high-temperature exhaust) is supplied to the rear exhaust chamber 17, the communication passage 19, and the exhaust. Since the exhaust air is discharged from the exhaust port 27 through the front chamber 13 and the exhaust pipe 26 (exhaust passage 25), the dust-absorbing air passes through the other of the double pipes of the communication passage 19 and the connection tool 21. With the dust suction pipe 23 and the like, the high-temperature exhaust can be heat-exchanged and discharged at a temperature close to room temperature, and the exhaust can be lowered in temperature. Thereby, even if the discharged exhaust gas touches the user's skin or the like, there is no fear of giving discomfort.
[0026]
Further, since the exhaust port 27 is provided at a position where the exhaust exhausted from the exhaust port 27 cannot be directly blown onto the floor surface X, it is possible to prevent the dust from rising on the floor surface X due to the exhaust lowered to near room temperature, A highly cleanable vacuum cleaner can be obtained.
[0027]
Further, the exhaust is exhausted through the exhaust rear chamber 17, the communication passage 19, the exhaust front chamber 13, and the exhaust pipe 26 (exhaust passage 25), and the sound absorbing material 18 and the exhaust filter 31 are attached to them. It is possible to reduce the noise of the exhaust gas passing through the electric vacuum cleaner, and to obtain a highly quiet electric vacuum cleaner.
[0028]
[Embodiment 2]
FIG. 4 is an enlarged cross-sectional view of the main part of the second embodiment of the present invention. This second embodiment is the end of the intake hose 20 in the connector 21 of the hose member 5 of the connection body 6 according to the first embodiment. The end portion of the intake hose 20 is fixed to the inner peripheral portion of the dust suction pipe 23 on the hose intake port 22a side, and the hose intake port 22a of the exhaust pipe 26 formed in a cylindrical shape is omitted. The exhaust hose 32 is provided on the outer peripheral side of the end portion of the intake hose 20 on the side and has a predetermined length in which the intake hose 20 is accommodated and is made of a soft material that can expand and contract in the axial direction. It is a thing.
[0029]
One end of the exhaust hose 32 is fixed to the inner peripheral portion on the exhaust outlet 33 side, which is the end facing the exhaust inlet 24 of the exhaust pipe 26, the other end is fixed to the other end, and the intake hose 20 is inserted through the substantially central portion. A heat exchange passage communicating with the exhaust passage 25 between the exhaust hose 32 and the intake hose 20 by extending the exhaust hose 32 along the intake hose 20 is provided. 35 is formed. The exhaust hose 32 is provided with an exhaust port 36a that communicates between the heat exchange path 35 and the outside of the main body 1 (and therefore the room), and is formed by a gap between the intake hose 20 and the periphery of the insertion hole 34a. An exhaust port 36b is provided. The exhaust ports 36a and 36b are provided at positions where the exhaust exhausted from the exhaust ports 36a and 36b is not directly blown onto the floor surface X, and are preferably provided close to the end plate 34. Further, the opening area of all the exhaust ports 36a and 36b is formed to be larger than the opening area of the longitudinal section of the intake hose 20, and the speed of the exhaust flow is reduced. In the second embodiment, the exhaust port 27 of the exhaust pipe 26 is omitted.
[0030]
The exhaust ports 36a and 36b formed in the exhaust hose 32 may have openings formed in a fine mesh shape.
Moreover, you may form the exhaust hose 32 whole in mesh shape. That is, it is more desirable that the whole is made of a ventilation material. In that case, if the floor surface X side is subjected to a coating process or the like to make it non-breathable, dust or the like on the floor surface X caused by exhausted exhaust will be danced. Ascent can be prevented. Note that the exhaust ports 36a and 36b provided in the exhaust hose 32 increase the opening area and number of the exhaust ports 36a and 36b far from the cleaner body 1, that is, as the handle 4 is approached, so that the dust from the floor surface is exhausted. You may make it prevent going up. Even when the air exhaust openings 36a and 36b are meshed, the same effect can be obtained by changing the opening area. Even when configured as described above, the handle 4 is positioned far from the floor surface during use, and therefore has little effect on the floor surface.
[0031]
Also in the present embodiment configured as described above, as in the case described in the first embodiment, air sucked into the main body 1 together with dust from the floor suction tool 2 through the connecting body 6 (dust-absorbing air). Is cleaned by the dust collector 12, enters the electric blower 16, cools the electric blower 16, becomes high-temperature exhaust, and is sent to the exhaust rear chamber 17. Next, the high-temperature exhaust gas is sent to the heat exchange passage 35 of the exhaust hose 32 through the communication passage 19, the exhaust front chamber 13 and the exhaust passage 25 of the exhaust pipe 26, and is discharged into the room through the exhaust ports 36 a and 36 b.
[0032]
At this time, the high-temperature exhaust is subjected to heat exchange when passing through the exhaust rear chamber 17, the communication passage 19, the exhaust front chamber 13, and the exhaust passage 25 to be lowered to a temperature close to room temperature, and at the time of passing through the heat exchange passage 35. Then, heat is exchanged by the intake hose 20 through which the dust-absorbing air passes, and after it is lowered to a temperature close to room temperature, it is discharged into the room. Further, the intake noise (noise) generated with the dust-intake air flow is shielded and reduced by the exhaust passage 25 and the heat exchange passage 35 through which the exhaust passes and the exhaust flow. Further, since the exhaust vents 36a and 36b provided in the exhaust hose 32 are provided at positions where the exhaust exhausted cannot be directly blown onto the floor surface X, the dust on the floor surface X due to the exhaust lowered to near room temperature. Will not soar. Further, the high-speed exhaust flow from the electric blower 16 is gradually decelerated by the muffler effect of the exhaust rear chamber 17, the communication passage 19, the exhaust front chamber 13, the exhaust passage 25, and the heat exchange passage 35, and the exhaust rear chamber 17, Exhaust noise is reduced by the sound absorbing material 18 and the exhaust filter 31 attached to the communication passage 19, the exhaust front chamber 13 and the exhaust pipe 26. If the exhaust filter 31 is provided on the inner peripheral surface of the exhaust hose 32, the noise reduction effect can be further enhanced.
[0033]
As described above, the exhaust rear chamber 17, the communication passage 19, and the exhaust front chamber 13 are provided in the main body 1, and the connection tool 21 of the hose member 5 of the connection body 6 that connects the floor suction tool 2 to the main body 1 is not connected. The exhaust hose 20 is housed when used, and the exhaust hose 32 that forms the heat exchange passage 35 is provided between the intake hose 20 and the exhaust hose 20 when used. Therefore, the exhaust rear chamber 17, the communication passage 19, the exhaust front chamber 13, and the exhaust passage 25 are provided. As a result, the high-temperature exhaust can be heat-exchanged to lower the temperature close to room temperature, and in the heat-exchange passage 35, heat can be exchanged by the intake hose 20 through which dust-absorbing air passes through the exhaust lowered to a temperature close to room temperature to some extent. Further, the exhaust gas can be discharged at a temperature close to room temperature, and the heat exchange passage 35 through which the exhaust gas exchanges heat can be formed longer to reliably reduce the temperature of the exhaust gas. Thereby, the vacuum cleaner which does not have a possibility of giving the user a discomfort with respect to the exhaust temperature can be obtained. Moreover, since the intake hose 20 can be accommodated in the exhaust hose 32 when not in use, the intake hose 20 can be made compact, and the storage capacity of the vacuum cleaner when not in use can be improved.
[0034]
In addition, since the exhaust hose 32 is provided in the connector 21, a double pipe can be formed together with the intake hose 20, and the exhaust passage 25 of the exhaust pipe 26 through which the exhaust passes noise generated with the dust-intake air flow and It can be shielded by the heat exchange passage 35 of the exhaust hose 32 and its exhaust flow. Thereby, a noise can be reduced and a vacuum cleaner with high silence can be obtained.
[0035]
Further, since the exhaust vents 36a and 36b are provided at positions where the exhaust exhausted from the exhaust vents 36a and 36b is not directly blown onto the floor surface X and close to the end plate 34, the exhaust vents 36a and 36b are on the floor surface X due to the exhaust lowered to near room temperature. A dust cleaner can be prevented from rising, and an electric vacuum cleaner with high cleaning properties can be obtained. In addition, since the opening area of all the exhaust ports 36a and 36b is formed larger than the opening area of the longitudinal section of the intake hose 20, the speed of the exhaust flow can be reduced and the noise of the exhaust can be reduced. It is possible to reduce discomfort due to noise.
[0036]
[Embodiment 3]
FIG. 5 is a longitudinal sectional view of a cleaner body according to Embodiment 3 of the present invention. In addition, the same code | symbol is attached | subjected to the same part as Embodiment 1, 2, and description is abbreviate | omitted.
In the figure, reference numeral 16a denotes a fan case in which a blower fan (not shown) of the electric blower 16 is adopted, and a plurality of exhaust ports 16b are provided on the outer periphery, and a partition wall 15a is provided by a support member 15b. It is installed in the electric motor room 15 in the vicinity. 17 b is a partition wall provided between the motor chamber 15 and the exhaust rear chamber 17, and 18 a is a sound absorbing material provided so as to surround the motor of the electric blower 16.
[0037]
The communication passage 19 provided at the bottom of the main body 1 is divided into a communication passage 19 and a rear communication passage 19a by a partition wall 19b having a vent provided between the bottom plate and the bottom of the motor chamber 15. The passage 19 communicates with the pre-exhaust chamber 13 through an exhaust port provided in the partition wall 19c, and communicates with the exhaust port 16b of the blower fan case 16a through an exhaust port 15c provided on the bottom plate of the motor chamber 15. .
Further, the rear communication passage 19a communicates with the motor chamber 15 and the exhaust rear chamber 17 through an exhaust port. Reference numeral 1d denotes a main body exhaust port provided on the rear wall of the main body 1.
[0038]
In the present embodiment configured as described above, air containing dust sucked from the floor suction tool 2 is sucked into the main body 1 through the connecting body 6, and only dust is captured in the dust collector 12. Is done. On the other hand, the air sucked into the main body 1 together with the dust is purified by the dust collector 12 and enters the blower fan case 16a, a part of which is discharged from the exhaust port 16b and from the exhaust port 15c to the communication path 19. Discharged inside. Then, the air is sent to the heat exchange passage 35 of the exhaust hose 32 through the exhaust port of the partition wall 19c, the pre-exhaust chamber 13, the exhaust passage 25, and the exhaust port 27, and discharged into the room through the exhaust ports 36a and 36b.
[0039]
Further, a part of the air that enters the fan case 16a is diverted to the motor side, cools the motor and becomes high-temperature exhaust gas, passes through the sound absorbing material 18a from the exhaust port, and reaches the rear part from the exhaust port provided in the bottom plate. The exhaust gas is fed into the communication passage 19a and discharged from the main body exhaust port 1d through the exhaust rear chamber 17 to the outside. A part of the exhaust of the fan case 16a for air is diverted from the vent provided in the partition wall 19b to the rear communication passage 19a, and is merged with the high-temperature exhaust from the motor chamber 15 to cool the main exhaust port 1a. Reduce the exhaust temperature from
[0040]
According to the present embodiment, the exhaust discharged from the air exhaust ports 36a and 36b of the exhaust hose 32 is not heated by dividing the exhaust from the dust collection chamber 8 by the fan case 16a for the blower. There is no unpleasant feeling, and since the exhaust passage to the exhaust hose 32 is formed long, noise reduction can be achieved. Furthermore, by dividing the exhaust, the exhaust amount discharged from the exhaust hose 32 and the main body exhaust port 1a is dispersed, so that the exhaust speed is reduced and noise can be further reduced. In the above description, the case where the fan of the electric blower 16 is stowed in the blower fan case 16a is shown. However, a dust suction fan and a motor cooling fan may be provided separately, and in this case, the same effect is obtained. Can be obtained.
[0041]
[Embodiment 4]
FIG. 6 is a longitudinal sectional view of a cleaner body according to Embodiment 4 of the present invention, and FIG. 7 is a longitudinal sectional view of a cleaner body provided with a levitation member according to the present invention and an operation explanatory view thereof. In the present embodiment, in the main body 1 according to the first embodiment, openings 37 a and 37 b communicating with the outside of the main body 1 are provided at positions corresponding to the middle part of the communication passage 19 at the bottom and the exhaust front chamber 13. When opened to a position corresponding to the openings 37a and 37b, the communication passage 19 communicates with the outside of the main body 1 to close a part of the communication passage 19, and when closed, the communication passage 19 communicates with the outside of the main body 1. Switching valves 38a and 38b for shutting off are provided, and a floating member 39 is provided at the bottom of the main body 1 so that the switching valves 38a and 38b are opened and the main body 1 is lifted by exhaust pressure from the main body 1. It is.
[0042]
The levitation member 39 has a shape in which the planar shape of the main body portion substantially corresponds to the bottom portion of the main body 1, and a peripheral wall 40 that fits below the side portion of the main body 1 is erected on the peripheral edge. A locking projection 40a that engages with an engaging portion 1c provided on the side of the main body 1 is provided on the surface. Then, the switching valves 38a and 38b are pushed up to the communication passage 19 side at positions corresponding to the switching valves 38a and 38b of the main body when the levitation member 39 is attached to the bottom of the main body 1, and the openings 37a and 37b are opened. Then, projecting portions 41a and 41b that communicate with the outside of the main body 1 and close the communication passage 19 between the opening 37a and the opening 37b and exhaust holes 42a and 42b that communicate with the openings 37a and 37b are provided, respectively. An exhaust inlet 43 that guides exhaust from inside the main body 1 to the rear outside the main body 1 is provided at the lower part of the exhaust hole 42a, and the exhaust gas outside the main body 1 is communicated to the lower outer periphery of the exhaust hole 42b through the exhaust hole 42b. A cylindrical exhaust outlet 44 made of a soft material that leads to the exhaust prechamber 13 is provided. Further, the front wheel 1a, the rear wheel 1b, the exhaust inlet 43, the exhaust outlet 44, and the like are surrounded by the peripheral edge of the lower surface of the main body portion of the levitation member 39, and the external exhaust passage 46 is defined by the space between the main body 1 and the floor surface X. A soft material skirt 45 is formed to have a length that causes a slack on the lower end side of the skirt 45 when the main body 1 is lifted by exhaust pressure.
[0043]
In the present embodiment configured as described above, first, as shown in FIG. 7, the floating member 39 is mounted on the bottom of the main body 1, and the switching valves 38a and 38b are pushed up by the projecting portions 41a and 41b to open the opening. 37a and 37b are opened. Next, when the electric blower 16 is driven to start cleaning, indoor air is sucked into the main body 1 from the floor suction tool 2 through the connecting body 6 together with dust on the floor surface X, and only dust is collected. To be captured. The dust-intake air sucked into the main body 1 is purified by the dust collector 12 and enters the electric blower 16, cools the electric blower 16, becomes high-temperature exhaust, and is sent to the exhaust rear chamber 17. Next, the high-temperature exhaust gas sent to the communication passage 19 is sent to the external exhaust passage 46 through the opening 37 a opened in the middle of the communication passage 19, the exhaust hole 42 a and the exhaust inlet 43. At this time, the high-temperature exhaust from the main body 1 is discharged to the external exhaust passage 46 surrounded by the skirt 45 of the levitation member 39, thereby generating a certain pressure, and the main body 1 rises. The floated body 1 becomes lighter and improves the running performance of the vacuum cleaner. Further, the skirt 45 prevents dust on the floor surface X from being scattered outside the skirt 45 due to the exhaust discharged into the external exhaust passage 46.
[0044]
Next, the high-temperature exhaust gas once discharged into the external exhaust passage 46 is subjected to heat exchange in the external exhaust passage 46 to be lowered in temperature, and then sent from the exhaust outlet 44 to the exhaust pre-chamber 13 through the exhaust hole 42b and the opening 37b. Then, it passes through the exhaust passage 25 of the exhaust pipe 26 and is discharged from the exhaust port 27 into the room. At this time, the exhaust gas whose temperature has been lowered in the external exhaust passage 46 is further subjected to heat exchange by the dust suction pipe 23 of the connector 21 through which dust-absorbing air passes, and after being lowered to a temperature close to room temperature, Discharged.
[0045]
When cleaning is performed without attaching the levitation member 39, the openings 37a and 37b are closed by the switching valves 38a and 38b as shown in FIG. Is obtained.
[0046]
In this manner, the switching valves 38 a and 38 b are opened at the bottom of the main body 1, and the main body 1 is floated by the exhaust pressure from the inside of the main body 1, and the external exhaust passage 46 is provided between the bottom of the main body 1 and the floor surface X. Since the floating member 39 is formed, the high-temperature exhaust can be efficiently heat-exchanged by the external exhaust passage 46, which is a large space, so that the temperature can be lowered. Exhaust gas that has dropped to a near temperature can be discharged. Thereby, the vacuum cleaner which does not have a possibility of giving the user a discomfort with respect to the exhaust temperature can be obtained. Moreover, the main body 1 can be floated by the floating member 39, and the main body 1 at the time of use can be lightened and the running property can be improved.
[0047]
FIG. 8 is a longitudinal sectional view of a vacuum cleaner body of another example of the present embodiment, in which the front wheels and the rear wheels are omitted. In addition, the same code | symbol is attached | subjected to this same part as Embodiment 3 (FIG. 5) and FIG. 5, FIG. 6, and a part of description is abbreviate | omitted.
An exhaust inlet 37c that communicates with the communication passage 19 and is opened and closed by an on-off valve 38c is provided at the bottom of the main body 1 of this example.
[0048]
An operation projection 39a for opening and closing the on-off valve 38c is provided at a position corresponding to the exhaust inlet 37c of the levitation member 39, and a plurality of static pressure ports 39b inclined outward are provided at the bottom thereof. A pressure equalizing chamber 47 is formed between the bottom of the main body 1. Although the on-off valve 38c normally closes the exhaust inlet 37c, when the floating member 39 is attached to the bottom of the main body 1, the operation projection 39a pushes up the on-off valve 38c to open the exhaust inlet 37c. A large opening 45 a is provided at the center of the skirt 45, and the outer periphery thereof is attached to the floating member 39, so that a floating space 48 is formed between the floating member 39 and the floor surface X.
[0049]
In the present example configured as described above, the exhaust air that has cooled the electric blower 16 is sent to the communication passage 19 via the communication hole 17a and the exhaust rear chamber 17, and the exhaust front chamber 13, the exhaust passage 25, and the exhaust port 27 are connected to each other. Then, the air is exhausted from the air exhaust ports 36a, 36b of the exhaust hose 32 into the room.
Further, a part of the exhaust in the communication passage 19 is divided by the pressure of the electric blower 16 from the exhaust inlet 37c to the pressure equalizing chamber 47 to be equalized, and becomes static pressure from the static pressure port 39b in the floating space 48. The main body 1 is lifted by increasing the pressure in the floating space 48. The skirt 45 is pressed against the floor surface X by the pressure in the floating space 48.
At this time, static pressure acts on the floating space 48, and dust and the like therein do not enter the communication path 19, so that dust and the like are discharged from the air exhaust ports 36a and 36b of the exhaust hose 32 or the filter is clogged. There is nothing.
[0050]
When the electric blower 16 is stopped after cleaning, the exhaust in the communication passage 19 is exhausted and no pressure is applied. Therefore, the exhaust pressure in the floating space 48 is exhausted through the static pressure port 39b, the exhaust inlet 37c, and the communication passage 19. The main body 1 is discharged from the air exhaust ports 36a, 36b of the hose 32.
When cleaning is performed without attaching the floating member 39, the on-off valve 38c closes the exhaust inlet 37c, so that cleaning can be performed in substantially the same manner as in the first and second embodiments.
Also in this example, the same effect as the case of FIG. 6, FIG. 7 can be acquired.
[0051]
[Embodiment 5]
FIG. 9 is an explanatory diagram of a vacuum cleaner according to Embodiment 5 of the present invention. In addition, the same code | symbol is attached | subjected to the same part as Embodiment 1-4, and description is abbreviate | omitted.
In FIG. 9, 4 a is provided at the connection portion of the intake hose 20 of the handle 4 of the connection body 6, and a fitting fixing portion of the exhaust hose 32, and 32 a is provided at the free end of the extendable exhaust hose 32. It is a fitting part that is detachably fitted to and fixed to the fixing part 4a. As described in the second embodiment, the exhaust hose 32 is provided with a plurality of air outlets 36a and 36b, and the connection pipe 3 is independent of the connection pipe 3 and the exhaust hose 32. Is connected to the handle 4 so as to communicate with the heat exchange passage 35.
[0052]
In the present embodiment configured as described above, when the power switch provided in the vicinity of the handle 4 is turned on while the exhaust hose 32 is contracted as shown in FIG. Similarly to the case described, the air sucked into the main body 1 together with the dust from the floor suction tool 2 through the connection body 6 is cleaned by the dust collector 12 and enters the electric blower 16. The exhaust gas is cooled to become high-temperature exhaust gas and sent to the exhaust rear chamber 17. Next, the high-temperature exhaust gas is sent to the heat exchange passage 35 of the exhaust hose 32 through the communication passage 19, the exhaust front chamber 13 and the exhaust passage 25 of the exhaust pipe 16, and exhausted into the room from the exhaust ports 36 a and 36 b.
The operation and effect in this case are almost the same as those in the second embodiment, but the exhaust hose 32 does not cover the entire air hose 20, so that the intake hose 20 is easily bent during cleaning, and cleaning is easy. is there.
[0053]
In FIG. 9B, the exhaust hose 32 is extended and the fitting portion 32a is fitted and fixed to the fitting fixing portion 4a provided on the handle 4, and the entire intake hose 20 is covered to form a double pipe. Is.
Although the operation and effect in this case are the same as in the case of the second embodiment, the exhaust hose 32 extends and is connected to the handle 4, so that exhaust is also discharged from the exhaust port 3 a provided in the connection pipe 3. Furthermore, since the area of the exhaust port 36a is enlarged and the exhaust speed is reduced, the noise reduction can be further increased. In addition, heat exchange between the exhaust gas passing through the heat exchange passage 35 and the intake air flow passing through the connection body 6 is advantageous, and the exhaust gas temperature discharged into the room can be further reduced. In addition, if the exhaust hose 32 is provided with a spiral piano wire or the like, it can be reliably expanded and contracted.
[0054]
[Embodiment 6]
FIG. 10 is an explanatory diagram of a vacuum cleaner according to Embodiment 6 of the present invention. The same parts as those in the fifth embodiment are denoted by the same reference numerals, and description thereof is omitted.
When cleaning is performed using an electric vacuum cleaner, it is not preferable because dust rises in the room and floats in the air as the floor suction tool is operated, and a person who performs cleaning sucks the dust. The present embodiment has been made to solve such a problem.
[0055]
In the figure, 3b is an outside air suction port provided on the outer periphery of the connection pipe 3, and this outside air suction port 3b is independent of the heat exchange passage 35 of the connection pipe 3 and the exhaust hose 32, and It communicates with an opening (not shown) provided at the bottom. Other configurations are the same as those in the fifth embodiment.
[0056]
In the present embodiment configured as described above, the exhaust hose 32 is housed or extended during cleaning and connected to the handle 4, and the main body by sucking dust together with air from the floor by the floor suction tool 2. 1 and the action of exhausting the exhaust from the exhaust hose 32 into the room is the same as in the fifth embodiment.
In the present embodiment, the dust that floats up in the room and floats in the air at this time is sucked together with the outside air by the suction force of the electric blower 16 from the outside air suction port 3b and is placed on the floor surface below the floor suction tool 2. It collides with the outside air sucked by the floor suction tool 2 while raising the dust on the floor surface, and the dust on the floor surface and the dust in the air are sent to the main body 1 through the connection tool 6.
[0057]
According to the present embodiment, the dust that floats into the room during cleaning and is suspended in the air is sucked together with the outside air and sent to the main body 1 together with the dust on the floor surface, so that the room can always be kept clean. It is also beneficial for health.
In the above description, the outside air suction port 3b is shown independent of the heat exchange passage 35 of the connection pipe 3 and the exhaust hose 32 and communicated with the floor suction port 2, but the floor suction tool 2 and May be provided so as not to communicate but directly communicate with the connection pipe or the suction passage of the handle 4.
[0058]
[Embodiment 7]
FIG. 11 is an explanatory diagram of a main part of the electric vacuum cleaner according to the seventh embodiment of the present invention. The same parts as those in the fifth and sixth embodiments are denoted by the same reference numerals and description thereof is omitted.
In this embodiment, before the electric blower 16 is stopped after the cleaning, the connection pipe 3 is detached from the handle 4 and the suction port 4b of the handle 4 is closed by the sheet material 50 or the hand. As a result, negative pressure is applied to the retractable intake hose 20, and the intake hose 20 contracts and is stored in the exhaust hose 32. Then, as shown in FIG. 11 (b), the fitting fixing portion 4 a of the handle 4 is fitted to the fitting portion 32 a of the exhaust hose 32. Of course, after stopping the electric blower 16, the connection pipe 3 may be removed from the handle 4 and the electric blower 16 may be restarted.
[0059]
When the vacuum cleaner is reused, if the exhaust hose 32 and the handle 4 are disengaged, the intake hose 20 expands again as shown in FIG.
According to the present embodiment, the long intake hose 20 is shortened and made compact, which is convenient when storing and storing the main body 1.
[0060]
Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and the embodiments can be implemented in appropriate combinations.
[0061]
【The invention's effect】
  The present invention provides a vacuum cleaner main body provided with a dust collecting unit and an electric blower inside, a floor suction tool for capturing dust, and sucking dust collected by the floor suction tool together with outside air into the dust collecting part. Connecting body consisting of connecting pipe, hose member, etc.It consists of a dust suction pipe and an exhaust pipe provided on the outer peripheryAt one end of the hose memberConnectedRemovably attached to the vacuum cleaner bodyConnectedConnection tool and the connection toolFormed between the dust suction pipe and the exhaust pipeAn exhaust passage through which exhaust from the electric blower passes, and a communication passage that is provided in the cleaner body and guides the exhaust to the exhaust passage, and the exhaust passageIn a position where it cannot be sprayed on the cleaning floorSince the exhaust port communicating with the inside and outside is provided, it is possible to reduce the temperature by exchanging heat in the communication passage and the exhaust passage, and to reduce the temperature of the exhaust that has become hot by cooling the electric blower. The electric vacuum cleaner can be obtained in which the exhaust noise can be reduced gradually by the muffler effect of the passage to reduce the noise of the exhaust, and the discomfort to the user of the discharged exhaust can be suppressed.
[0064]
  The present invention provides a vacuum cleaner main body provided with a dust collecting unit and an electric blower inside, a floor suction tool for capturing dust, and sucking dust collected by the floor suction tool together with outside air into the dust collecting part. A connecting body composed of a connecting pipe, a hose member, etc., an exhaust passage that is provided in the connecting body and guides exhaust from the electric blower, and a communication passage that is provided in the cleaner body and guides the exhaust to the exhaust passage. An intake hose made of a flexible material that can be bent and communicated with the dust collecting part of the cleaner body, a handle provided at one end of the intake hose, and a connector provided at the other end, One end is a free end and the other end is fixed to the connector, and at least a part of the intake hose is accommodated inside, and between the intake hoseCommunicating with the exhaust passageIt is configured by a bendable exhaust hose that forms a heat exchange passage, and the exhaust hose is provided with a plurality of exhaust ports for exhausting the exhaust from the electric blower into the room through the heat exchange passage. It is possible to lengthen the distance until exhaust gas that has reached a high temperature is discharged to other than the main body of the vacuum cleaner, and it is possible to reliably reduce the temperature of the high temperature exhaust gas. Thereby, the discomfort to the user of the exhaust_gas | exhaustion discharged | emitted can be eliminated. Further, noise generated with the dust-absorbing air flow passing through the intake hose can be shielded by the exhaust passage through which the exhaust passes and the heat exchange passage and the exhaust flow, and noise can be reduced. Thereby, a vacuum cleaner with high silence can be obtained.
[0065]
aboveSince the air exhaust port is provided at a position that does not face the cleaning floor surface, it is possible to prevent dust on the floor surface from rising due to the exhaust gas exhausted from the air exhaust port.
[0066]
aboveForm the free end of the exhaust hose so that it can be detached from the handle,
Also, ExhaustSince the intake hose is housed inside the air hose and the heat exchange passage is formed between the exhaust hose and the intake hose, a double pipe is used. If necessary, connect the exhaust hose to the handle. By adopting the heavy pipe structure, the exhaust gas heated to high temperature by the electric blower can be heat-exchanged in the long heat exchange passage to lower the temperature, and the user's discomfort due to the exhaust gas can be eliminated.
[0067]
  The intake hose aboveBy closing the handle's suction portIn the major axis direction, it is configured to contract by the negative pressure of the electric blower,
  further,The exhaust hose is configured to be stretchable by an external force in the major axis direction,
  Also,Since the intake hose can be stored in the exhaust hose when it is contracted, the length of the heat exchange passage can be changed arbitrarily, and the intake hose can be contracted in the exhaust hose if necessary. For example, it is convenient when the main body of the vacuum cleaner is compacted for storage and storage.
[0068]
  aboveThe connecting pipe communicates with the heat exchange passageSince the exhaust port is provided, the exhaust passage becomes longer, heat exchange of the exhaust becomes more advantageous, and the exhaust temperature can be further lowered.
[0069]
RoomA pipe connected to the outside air suction port that sucks the dust floating in the air together with the outside air is sucked into the dust collecting part through at least the floor suction tool, so that the room can always be kept clean. It is also effective for health.
[0070]
aboveSince the exhaust discharged from the connection body is exhaust that does not cool the electric motor of the electric blower, exhaust at a temperature substantially equal to room temperature is discharged in the vicinity of the user, so that the user is not uncomfortable. .
The bottom of the vacuum cleaner body is provided with a levitation member including a skirt and an exhaust inlet that floats the vacuum cleaner body from the floor surface by exhaust from the electric blower, and the vacuum cleaner body is lifted by the levitation member. Since exhaust air is exhausted from the exhaust port of the connecting body after or after rising, the exhaust that has become hot due to the cooling of the electric blower can be efficiently cooled by the floating member and the floor surface. Exhaust can be discharged.
In addition, since the vacuum cleaner main body is lifted by using the exhaust, it is possible to lighten the vacuum cleaner main body during use and improve its running performance.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a longitudinal sectional view of a vacuum cleaner body according to Embodiment 1 of the present invention and an operation explanatory diagram thereof.
FIG. 2 is an enlarged cross-sectional view of the main part of FIG.
FIG. 3 is a schematic diagram showing a use state of the first embodiment of the present invention.
FIGS. 4A and 4B are an enlarged cross-sectional view and an operation explanatory diagram of a main part of Embodiment 2 of the present invention. FIGS.
FIG. 5 is a longitudinal sectional view of a vacuum cleaner body according to Embodiment 3 of the present invention and an operation explanatory diagram thereof.
FIG. 6 is a longitudinal sectional view of a vacuum cleaner body according to Embodiment 4 of the present invention and an operation explanatory diagram thereof.
FIG. 7 is a longitudinal sectional view of a vacuum cleaner main body provided with a floating member according to a fourth embodiment and an operation explanatory view thereof.
FIG. 8 is a longitudinal sectional view of a main body of a cleaner provided with a floating member according to another example of the fourth embodiment and an operation explanatory view thereof.
FIG. 9 is an explanatory diagram of an electric vacuum cleaner according to a fifth embodiment of the present invention and an operation explanatory diagram thereof.
FIG. 10 is an explanatory diagram of an electric vacuum cleaner according to a sixth embodiment of the present invention and an operation explanatory diagram thereof.
FIG. 11 is an explanatory diagram of an electric vacuum cleaner according to a seventh embodiment of the present invention and an operation explanatory diagram thereof.
FIG. 12 is a cross-sectional view of a main part of a conventional vacuum cleaner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body, 1d Main body exhaust port, 2 Floor suction tool, 3 Connection pipe, 4 Handle, 5 Hose member, 6 Connection body, 8 Dust collection chamber, 12 Dust collection bag, 15 Electric motor chamber, 15c Exhaust port, 16 Electric blower , 16a Blower fan case, 16b Exhaust port, 18 Sound absorbing material, 19 Communication path, 19a Rear communication path, 20 Intake hose, 21 Connector, 23 Dust pipe, 25 Exhaust path, 26 Exhaust pipe, 27 Exhaust port, 31 Exhaust Filter, 32 Exhaust hose, 35 Heat exchange passage, 36a, 36b Exhaust port, 37a, 37b Opening, 38a, 38b Switching valve, 38c Open / close valve, 39 Lifting member, 39a Operation projection, 39b Static pressure port, 40 Peripheral wall, 41a 41b Projection, 43 Exhaust inlet, 44 Discharge outlet, 45 Skirt, 46 External exhaust passage, 47 Pressure equalization chamber, 48 Floating space, X Floor surface.

Claims

A vacuum cleaner body provided with a dust collecting part and an electric blower inside, a floor suction tool for capturing dust, a connection pipe to which the floor suction tool is connected at one end, and one end connected through the handle A connection body comprising a hose member coupled to a pipe and the other end coupled to the cleaner body;
A connector which is detachably connected to the Do Ri before Symbol cleaner body from the exhaust pipe provided on the dust suction pipe and its outer periphery secured to the other end of the hose member, the dust suction pipe of the fitting to the exhaust pipe An exhaust passage that is formed between the exhaust passage through which the exhaust from the electric blower passes, and a communication passage that is provided in the cleaner body and guides the exhaust to the exhaust passage,
The vacuum cleaner characterized by providing the exhaust port connected to the inside and outside in the position which does not oppose the cleaning floor of the said exhaust pipe.

A vacuum cleaner main body provided with a dust collection unit and an electric blower inside, a floor suction tool for capturing dust, and a connection pipe for sucking dust captured by the floor suction tool together with outside air into the dust collection unit, A connecting body composed of a hose member, a dust suction pipe and an exhaust pipe provided on the outer periphery thereof, a connection tool connected to one end of the hose member and detachably connected to the cleaner body, and a dust suction pipe of the connection tool An exhaust passage formed between the exhaust pipe and the exhaust passage through which the exhaust from the electric blower passes, and a communication passage provided in the cleaner body and leading the exhaust to the exhaust passage,
Handle the hose member, a suction hose having one end made bendable soft material communicates with the dust collecting portion of the cleaner body is secured to the dust suction pipe of said connecting device, provided at another end of the intake hose And a bend forming one end with a free end and the other end fixed to the connector, and at least a part of the intake hose is accommodated therein, and forms a heat exchange passage communicating with the exhaust passage between the intake hose and the intake hose. With a flexible exhaust hose,
A vacuum cleaner, wherein the exhaust hose is provided with a plurality of exhaust vents for exhausting exhaust from the electric blower into the room through the heat exchange passage.

The vacuum cleaner according to claim 2, wherein the air exhaust port is provided at a position not facing the cleaning floor.

The vacuum cleaner according to claim 2 or 3, wherein a free end of the exhaust hose is formed to be detachable from a handle.

The intake hose is accommodated inside the exhaust hose, and a double pipe is used so that a heat exchange passage is formed between the exhaust hose and the intake hose. The vacuum cleaner as described in.

The vacuum cleaner according to any one of claims 2 to 5, wherein the suction hose is configured to contract by the negative pressure of the electric blower in the major axis direction by closing the suction port of the handle .

The vacuum cleaner according to claim 6 , wherein the intake hose is configured to be accommodated in the exhaust hose when the intake hose is contracted.

The vacuum cleaner according to any one of claims 2 to 7 , wherein the hose is configured to be extendable and contractible by an external force in a major axis direction thereof.

The vacuum cleaner according to any one of claims 2 to 8, wherein an exhaust port communicating with the heat exchange passage is provided in the connection pipe.

The outside air suction port for sucking indoor floating dust together with outside air is provided in the connection pipe, and the outside air is sucked into the dust collecting part through at least the floor suction tool. The vacuum cleaner described.

The vacuum cleaner according to any one of claims 1 to 10, wherein the exhaust discharged from the connection body is an exhaust that does not cool the electric motor of the electric blower.

At the bottom of the vacuum cleaner main body, a skirt that floats the vacuum cleaner main body from the floor by exhaust from the electric blower, a floating member consisting of an exhaust inlet, etc. is provided.
The vacuum cleaner according to any one of claims 1 to 11, wherein the exhaust is discharged into the room from an exhaust port of a connecting body after the vacuum cleaner body is lifted or lifted by the floating member.