JP3810602B2

JP3810602B2 - Suction tool and circulation type vacuum cleaner using this suction tool

Info

Publication number: JP3810602B2
Application number: JP33828599A
Authority: JP
Inventors: 順司内藤
Original assignee: Toshiba TEC Corp
Current assignee: Toshiba TEC Corp
Priority date: 1999-11-29
Filing date: 1999-11-29
Publication date: 2006-08-16
Anticipated expiration: 2019-11-29
Also published as: JP2001149287A

Description

【０００１】
【発明の属する技術分野】
この発明は、吸込口体の吸込開口から吸込気流とともに吸引した塵埃を集塵装置によって除去した後、前記吸込口体に還流させて吸込開口近傍に吹出させて掃除をする循環式電気掃除機に用いられる吸込具およびこの吸込具を用いた循環式電気掃除機に関する。
【０００２】
【従来の技術】
吸込口体の吸込開口から吸込気流とともに吸引した塵埃を集塵装置によって除去した後、前記吸込口体に還流させて吸込開口近傍に吹出させて掃除をする循環式電気掃除機（以下単に循環式掃除機という）は従来から知られている。
この種の循環式掃除機は、掃除機本体に設けられ、塵埃とともに吸込気流を吸込む吸込口と、電動送風機から排気された排気風を還流させるための還流口とが形成された接続口体に、吸込風路と排気風路とを有する吸込ホースを接続し、また、この吸込ホースに同様に吸込風路と排気風路を有する延長管を接続し、この延長管に吸込口体である床ブラシなどを接続する構成となっている。
【０００３】
そして、前記吸込口体は、下面に開口した吸込開口を有する吸込室を有するとともに、吸込開口近傍に吹出口を設け、前記吸込開口から塵埃とともに吸込まれた吸込気流を吸込室、前記延長管、吸込ホースの吸込風路を介して前記掃除機本体に設けた接続口体の吸込口から、掃除機本体に設けた集塵室に配設された集塵装置内に吸込み、この集塵装置によって前記塵埃を除去した後、排気風を前記還流口、吸込ホース、延長管の排気風路を介して、吸込口体に還流させて前記吹出口から吹出させて被掃除面から塵埃を吹出させ、この吹出した塵埃を吹出された排気風とともに、再び吸込気流として吸込むことによって掃除をなすものである。
【０００４】
また、この種の循環式掃除機においても、一般の電気掃除機と同様に、例えば、窓枠の敷居溝などの狭小な場所の塵埃を吸引することにより、あるい排気風を吹き付けて塵埃を吹出すことによって除去するために、一般にツル口などと呼ばれている付属用の吸込具が使用されるものである。
【０００５】
しかし、循環式掃除機の延長管および吸込ホース（以下延長管および吸込ホースを総称して吸込ホースなどともいう）には、上述のように吸込風路と排気風路とが形成されているために、例えば、窓枠の敷居溝などの狭小な場所の塵埃を吸引して除去するときは、前記吸込ホースなどの吸込風路にのみ連通する構成の吸込具を用い、また、逆に排気風を吹き付けて塵埃を吹出すことによって除去するときは、吸込ホースなどの排気風路のみと連通する構成の吸込具を用いているものである。つまり、吸引用と吹出し用の二種類の吸込具を必要とするものである。
【０００６】
このため、掃除中に掃除場所に応じて吸引ないし吹出しによって掃除をしようとするときは、その都度吸引用の吸込具と吹出し用の吸込具を吸込ホースなどに接続し直すという煩わしい操作が必要となり、また、二種類の吸込具を要することから収納時などのおける取り扱いも煩わしくなるとともに収納スペースも必要となるなど問題があり、また、コスト的にも高くなるという問題がある。
【０００７】
【発明が解決しようとする課題】
上記のように従来の循環式掃除機に用いられる吸込具は、循環式掃除機固有の風路構成によって吸引用と吹出し用の二種類が必要となるため、掃除中に掃除場所に応じて吸引ないし吹出しによって掃除をしようとするときは、その都度吸引用の吸込具と吹出し用の吸込具を吸込ホースなどに接続し直さなければならないという煩わしい操作が必要となり、また、吸込具の数が多くなり収納時の取り扱いも煩わしくなるとともに収納スペースも必要となるなど問題があり、また、コスト的にも高くなるという問題がある。
【０００８】
【課題を解決するための手段】
この発明は上記事情に鑑みてなされたもので、請求項１記載の発明は、先端部に開口を有するとともに基端部にそれぞれ外部に開口する吸引口と吐出口とを有する吸込具本体と、この吸込具本体の基端部に相対移動可能に設けられるとともに吸込風路と排気風路を有する接続管とから構成され、吸込具本体の前記開口を接続管の吸込風路に連通させる第一の吸込流路と、接続管の排気風路を前記吐出口に連通させる第一の排気流路と、前記吸込具本体の吸引口を接続管の吸込風路に連通させる第二の吸込流路と、接続管の排気風路を吸込具本体の開口に連通させる第二の排気流路とを形成し、前記吸込具本体と接続管とを相対的に移動させて、第一の吸込流路と第一の排気流路とを構成する態様と、第二の吸込流路と第二の排気流路とを構成する態様に切り換えるようにした吸込具としたものである。
このように請求項１の発明は、吸込具を、先端部に開口を有するとともに基端部にそれぞれ外部に開口する吸引口と吐出口とを有する吸込具本体と、この吸込具本体の基端部に相対移動可能に設けられるとともに吸込風路と排気風路を有する接続管とから構成されるとともに、吸込具本体の前記開口を接続管の吸込風路に連通させる第一の吸込流路と、接続管の排気風路を前記吐出口に連通させる第一の排気流路と、前記吸込具本体の吸引口を接続管の吸込風路Ｆに連通させる第二の吸込流路と、接続管の排気風路を吸込具本体の開口に連通させる第二の排気流路とを形成し、前記吸込具本体と接続管とを相対的に移動させて、第一の吸込流路と第一の排気流路とを構成する態様と、第二の吸込流路と第二の排気流路とを構成する態様に切り換えるようにしたことから、吸込具を、前記吸込具本体と接続管とを相対的に移動させて、第一の吸込流路と第一の排気流路とが構成する態様とすることにより吸込用として機能させ、また、第二の吸込流路と第二の排気流路とを構成する態様とすることにより吹付け用として機能させることができるという作用を有するものである。したがって、この吸込具を循環式電気掃除機に用いたときは、狭小な部分の掃除をする場合において、一つの吸込具を必要に応じて吸込用または吹付け用として機能させることができるため、使用時における操作、収納時などにおける取り扱いが容易となり、コスト的にも安価とすることができるものである。
また、請求項２の発明は、先端部に開口を有し少なくとも基端部を円形とした内管とこの内管の外周に離間させて環状壁を形成するととともに、前記内管および環状壁の開口を遮蔽する遮蔽壁を形成した吸込具本体と、前記遮蔽壁に気密的に摺接する隔壁とこの隔壁の一端側に前記環状壁の内周面にその外周面を気密的に摺接する環状の外側摺接壁と前記内管の外周面にその内周面を気密的に摺接する内側摺接壁とを有し内部を風路室とした嵌合部が形成され、他端側に吸込風路を形成する第一の嵌合管とこの第一の嵌合管の外周に排気風路を形成するように第二の嵌合管を形成した接続管とから構成され、
前記吸込具本体の内管の周壁に連通口と吸気連通孔を、前記遮蔽壁の前記内管の内側の領域に第一の吸込孔および第二の吸引孔を、前記内管と環状壁の間の領域に前記接続管の風路室に連通する第一の排気孔および第二の排気孔を、前記環状壁に吐出口および吸引口を形成し、
前記接続管の隔壁の第一の嵌合管の内側の領域に前記第一の吸込孔と第二の吸込孔とに選択的に連通する吸気孔を、第一の嵌合管と第二の嵌合管との間の領域に、前記吸気孔が第一の吸込孔と連通したとき前記第一の排気孔と連通し、第二の吸込孔と連通したとき第二の排気孔と連通する排出口を、前記外側摺接壁に前記排出口と第一の排気孔が連通したとき前記吐出口および吸引口にそれぞれ連通する排気連通口を、前記内側摺接壁に前記吸気孔が前記第二の吸込孔に連通し、かつ前記排出口が第二の排気口に連通したとき、前記連通口および前記吸引口に連通する第一の開口および第二の開口を形成した吸込具としたものである。
【０００９】
このように請求項２の発明は、吸込具を、先端部に開口を有し少なくとも基端部を円形とした内管とこの内管の外周に離間させて環状壁を形成するととともに、前記内管および環状壁の開口を遮蔽する遮蔽壁を形成した吸込具本体と、前記遮蔽壁に気密的に摺接する隔壁とこの隔壁の一端側に前記環状壁の内周面にその外周面を気密的に摺接する環状の外側摺接壁と前記内管の外周面にその内周面を気密的に摺接する内側摺接壁とを有し内部を風路室とした嵌合部が形成され、他端側に吸込風路を形成する第一の嵌合管とこの第一の嵌合管の外周に排気風路を形成するように第二の嵌合管を形成した接続管とから構成され、
前記吸込具本体の内管の周壁に連通口と吸気連通孔を、前記遮蔽壁の前記内管の内側の領域に第一の吸込孔および第二の吸引孔を、前記内管と環状壁の間の領域に前記接続管の風路室に連通する第一の排気孔および第二の排気孔を、前記環状壁に吐出口および吸引口を形成し、
前記接続管の隔壁の第一の嵌合管の内側の領域に前記第一の吸込孔と第二の吸込孔とに選択的に連通する吸気孔を、第一の嵌合管と第二の嵌合管との間の領域に、前記吸気孔が第一の吸込孔と連通したとき前記第一の排気孔と連通し、第二の吸込孔と連通したとき第二の排気孔と連通する排出口を、前記外側摺接壁に前記排出口と第一の排気孔が連通したとき前記吐出口および吸引口にそれぞれ連通する排気連通口を、前記内側摺接壁に前記吸気孔が前記第二の吸込孔に連通し、かつ前記排出口が第二の排気孔に連通したとき、前記連通口および前記吸引口に連通する第一の開口および第二の開口を形成したことから、
吸込具本体と接続管を相対的に周方向に回動させることにより、吸気孔を第一の吸込孔と連通させるとともに排出口を第一の排気孔に連通させると、吸引口は外側摺接壁によって、連通口は内側摺接壁によってそれぞれ遮蔽されるとともに、排出口は第一の排気孔、排気連通口を介して吐出口に連通するため、吸込具本体の開口は接続管の第一の嵌合管の内部吸込風路と連通し、また、接続管の第二の嵌合管の内部の排気風路は吸込具本体の吐出口と連通する流路が形成され、また、吸気孔を第二の吸込孔と連通させると排出口は第二の排気口に連通し、連通口は第一の開口と吸引口は第二の開口とそれぞれ連通するため、吸引口は接続管の第二の嵌合管の吸込風路に連通し、吸込具本体の開口は接続管の第二の嵌合管の吸込風路に連通する流路が形成されることから、この吸込具を循環式電気掃除機に用いたときは、狭小な部分の掃除をする場合において、必要に応じて吸込む流路を形成して塵埃を吸込んで掃除をすることも、吹出す流路を形成して排気風を吹き付けて塵埃を噴出させて掃除をすることも一つの吸込具によってなすことができるという作用を有するものである。
また、請求項３の発明は、外部に開口する吸込口と還流口とを有するとともに、集塵装置が配設され前記吸込口に連通した集塵室、この集塵室の下流側に設けられ電動送風機を収納する送風機室を有する掃除機本体の前記吸込口と還流口とに、請求項１または請求項２の吸込具の第一の嵌合管と第二の嵌合管を連通させて接続した循環式電気掃除機としたものである。
このように請求項３の発明は、外部に開口する吸込口と還流口とを有するとともに、集塵装置が配設され前記吸込口に連通した集塵室、この集塵室の下流側に設けられ電動送風機を収納する送風機室を有する循環式電気掃除機の掃除機本体の前記吸込口と還流口とに、請求項１または請求項２の吸込具の第一の嵌合管と第二の嵌合管を連通させてするものであることから、掃除中における狭小な部分の掃除をする場合において、必要に応じて塵埃を吸込んで掃除をすることも、排気風を吹き付けて塵埃を噴出させて掃除をすることも一つの吸込具によってなすことができることから、従来のように都度吸込具を交換をするという煩わしい操作の必要がなく、また、吸込具は一つであることからその取り扱いが容易でとなるなどの作用を有するものである。
【００１０】
【発明の実施の形態】
つぎに、この発明の実施の形態を図１ないし図７に基いて説明する。
図１は、循環式掃除機Ａの構成つまり掃除機本体１に吸込ホース３０、延長管５０および床ブラシ６０を接続した状態を示した図であり、そして、図に示すように前記掃除機本体１は、内部に集塵室１１、この集塵室１１の下流側に設けられた送風機室１２および図示しないが送風機室１２の後方の部位に設けられたリール室が形成された本体ケース１０、前記集塵室１１内に着脱可能に配置される集塵装置である集塵袋２０、前記送風機室１２内に収納された電動送風機２１、前記図示しないリール室内に設けられた同じく図示しないコードリールなどから構成されている。
【００１１】
また、前記本体ケース１０の前部には、吸込口１３と還流口１４とが形成された接続口１５が形成されており、また、前記還流口１４と前記送風機室１２とは還流路１４ａを介して連通している。
また、前記本体ケース１０の前記集塵室１１の上部には集塵室１１の開口（不図示）を開閉する開閉蓋１６が形成されおり、また、後部側壁には走行車輪１７が、前部下側には旋回輪１８が取り付けられている。
【００１２】
つぎに、前記吸込ホース３０は、可撓性を有する外ホース３１とこの外ホース３１内に同心状に配置された内ホース３２とからなるホース部３３、このホース部３３の一端側に接続され前記接続口１５に着脱可能な接続口体３４、他端側に接続された把手部４０とから構成されている。そして、前記内ホース３２の内部に形成される通路は吸込風路を構成しており、また、外ホース３１の内部つまり外ホース３１の内周壁と内ホース３２の外周壁との間に形成される通路は排気風路を構成している。
【００１３】
また、前記接続口体３４には、その内部に前記内ホース３２に接続された吸込管３５が設けられており、また、外ホース３１の内周壁と内ホース３２の外周壁との間に形成された前記通路つまり排気風路と連通する図示しない排気通路が形成されている。そして、接続口体３４を前記接続口１５に接続したときは、前記吸込管３５の先端部は前記集塵袋２０内に入り込み、また、前記図示しない排気通路は前記接続口１５に設けた還流口１４に連通するようになっている。
【００１４】
前記把手部４０は、把手ケース４０ａ、この把手ケース４０ａ内に配設された略く字状に形成された外接続管４１、この外接続管４１の内部に配置された同様に略く字状に形成された内接続管４２および把手ケース４０ａの上部に一体に形成された把手４８とから構成されている。
また、前記内接続管４２は外接続管４１の内部に同心円状となるように配置されており、内接続管４２の管内は吸込風路を構成し、また、内接続管４２の外周面と外接続管４１の内周面との間に形成される空間は排気風路を構成するものである。
【００１５】
そして、内接続管４２の一端部（以下後端部ともいう）は前記内ホース３２の他端側が接続されており、また外接続管４１の一端部（以下同様に後端部ともいう）は前記外ホース３１の他端側が接続されている。
【００１６】
また、前記外接続管４１および内接続管４２の先端側開口は、図２に示すようにそれぞれ嵌合孔４３および嵌合孔４４を構成しており、これら嵌合孔４３および４４には後に詳述する前記延長管５０の外管５１および内管５２の先端部がそれぞれ挿入されて嵌合するようになっている。また、嵌合孔４４および４３には後述する吸込具Ｂの接続管８０の第一の嵌合管８６および第二の嵌合管８７の先端がそれぞれ挿入されて嵌合するようになっている。
また、前記把手部４８の前面部には、前記電動送風機２１を制御する複数の制御スイッチ４８ａが設けられており、これら制御スイッチ４８ａからの制御信号は、前記外ホース３１に配線された信号線（不図示）を介して、本体ケース１０内に設けられた図示しないマイクロコンピュータ等から構成された制御手段に送られ、この制御手段によって前記電動送風機２１は制御されるようになっている。
【００１７】
つぎに、前記把手部４０に着脱可能に接続される延長管５０は、図１に示すように、外管５１とこの外管５１の内部に同心円状に配設された内管５２とから構成されており、前記内管５２の内部は吸込風路を構成しており、また、内管５２の外周面と外管５１の内周面との間の空間は排気風路を構成している。
そして、前記外管５１および内管５２の一端側つまり後端側の先端部は、それぞれ前記把手部４０の外接続管４１の嵌合孔４３および内接続管４２の嵌合孔４４に嵌合するようになっている。また、前記外管５１および内管５２の他端側つまり前端側の先端部の開口部（不図示）は、それぞれ後述する床ブラシ６０の継手管の外継手管６３と図示しない内継手管と嵌合する嵌合孔（不図示）となっている。
【００１８】
つぎに、前記床ブラシ６０は、図１に示すように床ブラシ本体６１とこの床ブラシ本体６１に上下方向に回動可能に取り付けられた継手管６２とから構成されている。また、前記継手管６２は、外継手管６３とこの外継手管６３内に同心円状に設けられた内継手管（不図示）とから構成されており、前記内継手管の内部は吸込風路となっており、また、内継手管の外周面と外継手管６３の内周面との間の空間は排気風路となっている。
そして、床ブラシ６０は、外継手管６３および内継手管の先端部をそれぞれ前記延長管５０の先端部の嵌合孔に嵌合させることによって延長管５０に接続されるようになっている。
【００１９】
また、前記床ブラシ本体６１には、下面に図示しないが吸込開口が形成されており、内部には前記吸込開口および前記内継手管に連通する吸込室（不図示）が形成されている。また、吸込室の上部には排気風路を構成する同様に図示しない排気通路が形成され、この排気通路は、前記内継手管の外周面と外継手管６３の内周面との間の空間つまり排気風路と前記吸込開口の近傍に形成された吹出口（不図示）に連通している。
【００２０】
つぎに、上記のように構成された循環式掃除機Ａの掃除をする際の動作について説明する。
掃除をする場合は、図１に示すように掃除機本体１に、吸込ホース３０、延長管５０および床ブラシ６０を接続し、制御スイッチ４８ａを操作する。この操作によって電動送風機２１が駆動し、電動送風機２１の吸引作用によって床ブラシ６０の図示しない吸込開口から吸込気流とともに塵埃が吸込まれ、この吸込気流は延長管５０の内管５２、把手部４０の内接続管４２および吸込ホース３０の内ホース３２の内部つまり吸込風路を経て集塵室１１内に配設された集塵袋２０内に吸込まれ、そして、集塵袋２０によって塵埃が除去された吸込気流は電動送風機２１を通って排気風として送風機室１２に排気される。
【００２１】
この排気された排気風は、還流路１４ａ、還流口１４、吸込ホース３０の内ホース３２の外周面と外ホース３１の内周面との間つまり排気風路、延長管５０の内管５２の外周面と外管５１の内周面との間つまり排気風路、床ブラシ６０の内継手管の外周面と外継手管６１の内周面との間つまり排気風路を、床ブラシ本体６０の排気通路を経て吹出口から床面に向けて吹出される。
【００２２】
そして、吹出した排気風によって床面に存在する塵埃は吹き出され、この吹出された塵埃は吸込気流とともに前記した経路つまり吸込風路を経て集塵袋２０内に吸込まれ、塵埃が除去された吸込気流は、電動送風機２１によって吸込まれて再び排気風として前記床ブラシ６０に戻され吹出口から床面に吹き付けられ、床面の塵埃を吹出すことによって掃除がなされるものである。
【００２３】
つぎに、上記循環式掃除機Ａに用いられる接続具Ｂについて説明する。
この接続具Ｂは、図３に示すように前記把手部４０（あるいは延長管５０）に接続されて使用されるものであり、吸込具本体（以下単に本体という）７０とこの本体７０の基端部（把手部４０側の部分）に回動可能に取り付けられる接続管８０とから構成されている。なお、以下の説明においては前記基端部を基端側ともいい、また、基端部と反対側を先端側あるいは先端部という。
なお、図３における掃除機本体１および吸込ホース３０は、図１に示したものと同一構成であることから同一部分には同一符号を付してある。
【００２４】
そして、前記本体７０は、基端部は円形（円筒形）に形成されおり、この基端部近傍から先端までは幅方向を偏平状に形成されるとともに、先端部は側面からの投影が剣先状に形成されている。そして、その先端部には図３に示すように開口７１が形成されている。このような形状に形成されていることから、窓枠の敷居溝など狭小な部分に先端側を挿入して掃除ができるようになっている。
【００２５】
また、前記本体７０の基端側は、図４ないし図７に示すように断面円形とした内管７２とこの内管７２の外周に離間させて同心状に形成した環状壁７３によって形成されている。また、前記内管７２および環状壁７３の基端面には遮蔽壁７４が形成されている。
そして、各図に示すように前記内管７２の上面側（使用時に上側となる面）の管壁には連通口７２ａが形成されており、また、下面側（使用時に下側となる面）の壁面には、前記連通口７２ａと対向する位置（１８０度ずれた位置）に吸気連通孔７２ｂが形成されている。また、前記環状壁７３には、前記内管７２に形成した連通口７２ａと対向する位置に吐出口７３ａが形成され、また、前記吸気連通口７２ｂと対向する位置には吸引口７３ｂが形成されている。
【００２６】
また、前記遮蔽壁７４のうちの前記内管と外管との間の遮蔽壁（以下外側遮蔽壁ともいう）には、図４、図５に示すように上面側に円弧状の開口からなる第一の排気孔７４ａが形成され、また、この第一の排気孔７４ａと９０度ずれた部位には二つの第二の排気孔７４ｂが形成されている。
また、遮蔽壁７４のうちの内管７２の内側に位置する遮蔽壁（以下内側遮蔽壁ともいう）には、下側に扇状の開口からなる第二の吸引孔７４ｃが形成されており、また、この第二の吸引孔７４ｃと９０度ずれた部位に二つの第一の吸引孔７４ｄが形成されている。なお、前記第二の吸引孔７４ｃは、図６、図７に示すようにコ字の仕切壁７２ｆによって形成された風路７４ｅを介して前記吸気連通孔７２ｂに連通している。なお、風路７４ｅは、吸気連通孔７２ｂの一部となっているものである。
【００２７】
また、外側遮蔽壁には、前記環状壁７３の内周面との角部に周方向に沿って形成されたスリット状の円弧状嵌合孔７４ｆが外側遮蔽壁と内側遮蔽壁を接続するリブ（不図示）によって仕切られて形成されている。なお、円弧状嵌合孔７４ｆは、円周を略２等分する範囲に亘る円弧に形成されているものである。
【００２８】
つぎに、接続管８０は図４、図５に示すように、前記本体７０の遮蔽壁７４に気密的つまり気密状態で摺接する隔壁８１、この隔壁８１の一端側つまり本体７０側に形成された前記環状壁７３の内周面にその外周面を気密的に摺接するＣ字状の外側摺接壁８２（図６、図７参照）と前記内管７２の外周面にその内周面を気密的に摺接するＣ字状の内側摺接壁８３（図６、図７参照）と、この内側摺接壁８３と外側摺接壁８２との先端縁と一体に形成された底壁８４（図４、図５参照）、前記外側摺接壁８２の内側摺接壁８３の周方向端縁に一体に形成された仕切壁８２ｆ（図６、図７参照）とによって形成され後端側を開口し内部にＣ字状溝が形成された嵌合部８５、前記隔壁８１の他端側つまり把手部４０側に形成された第一の嵌合管８６とこの第一の嵌合管８６の外周に形成された第二の嵌合管８７とから構成されている。
なお、前記嵌合部８５の内部は風路室Ｓとなっているものである。また、前記第一の嵌合管８６と第二の嵌合管８７との間に形成される空間は排気風路Ｈとなっており、また、第一の嵌合管８６の内部は吸込風路Ｆとなっている。また、第一の嵌合管８６および第二の嵌合管８７は、上述したようにそれぞれ前記把手部４０の前記嵌合孔４４および嵌合孔４３に嵌合するようになっている。
【００２９】
また、前記隔壁８１の第一の嵌合管８６に囲まれた部分（以下内側隔壁ともいう）には、図４、図５に示すように扇状の開口からなる二つの吸気口８１ａが互いに対向して形成されており、また、第一の嵌合管８６と第二の嵌合管８７との間の隔壁８１の部分（以下外側隔壁ともいう）には、前記二つの吸気口８１ａと互いに９０度ずれた部位に円弧状の開口からなる排出口８１ｂが互いに対向して形成されている。
【００３０】
そして、前記吸気口８１ａは前記遮蔽壁７４つまり内側遮蔽壁に形成された第一の吸引孔７４ｄおよび第二の吸引孔７４ｃと相似形に形成されるとともに、その開口面積は略同一に形成されており、また、前記排出口８１ｂは、同様に外側遮蔽壁に形成した第一の排気孔７４ａおよび第二の排気孔７４ｂと相似形に形成されるとともにその開口面積は略同一に形成されている。
【００３１】
また、前記外側摺接壁８２には、前記一方の排出口（上側に位置する排出口）８１ｂの軸方向中心とその中心を一致させるとともに前記環状壁７３に形成した吐出口７３ａおよび吸引口７３ｂと同一形状とした二つの排気連通口８２ａが互いに対向した位置つまり１８０度ずれた位置に形成されており、また、この排気連通口８２ａと９０度ずれた位置には、図６、図７に示すように前記外側摺接壁８２と内側摺接壁８３に一体に形成された互いに対向する前記仕切壁８２ｆによって前記環状壁７３に形成した吸引口７３ｂと吸引連通孔７２ｂを連通させる第二の開口８３ｈとが形成されている。
また、内側摺接壁８３の前記第二の開口８３ｈと反対側つまり１８０度ずれた位置には、図５ないし図７に示すように前記連通口７２ａと同一形状に形成された第一の開口８３ｂが形成されている。
【００３２】
また、前記嵌合部８５の外側摺接壁８２の基部は、前記遮蔽壁７４に形成した円弧状嵌合溝７４ｆに摺動可能に嵌合しており、その周方向への回動関係は、前記本体７０つまり内管７２および外管７３をいずれの方向に対しても略９０度相対的に回動させることができるようになっている。
【００３３】
すなわち、図４に示す状態つまり本体７０の第一の排気孔７４ａと接続管８０の一方の排出口８１ｂとが対向し、また、本体７０の二つの第一の吸引孔７４ｄと接続管８０の二つの吸引口８１ａが対向した状態（以下第一の状態という）から、いづれかの方向に略９０度（例えば図７に示す状態から図６に示す状態）回動させると図５に示すように、本体７０の遮蔽壁７４つまり外側遮蔽壁に形成した二つの第二の排気孔７４ｂと接続管８０の隔壁８１つまり外側隔壁に形成した二つの排出口８１ｂとが対向し、また、本体７０の内側遮蔽壁に形成された第二の吸引孔７４ｃと接続管８０の内側隔壁に形成された二つの吸気口８１ａのうちの一つとが対向した状態（以下第二の状態という）となるようになっている。
【００３４】
また、前記第一の状態においては図４に示すように外側遮蔽壁に形成された二つの第二の排気孔７４ｂは隔壁８１によって遮蔽されており、内側遮蔽壁に形成された第二の吸引孔７４ｃは隔壁８１によって遮蔽されている。また、図４（Ｂ）に示すように、連通口７２ａは内側摺接壁８３によって遮蔽され、吐出口７３ａは排気連通孔８２ａと対向し、また、吸引口７３ｂは外側摺接壁８２よって遮蔽されている。
【００３５】
つまり、この第一の状態では、本体の開口７１は、前記第一の吸引孔７４ｄ、吸気口８１ａを介して第一の嵌合管８６の内部つまり吸込風路Ｆに連通し、また、第一の嵌合管８６と第二の嵌合管８７の間に形成される空間つまり排気風路Ｈは、排出口８１ｂ、第一の排気孔７４ａ、風路室Ｓ、排気連通口８２ａおよび吐出口７３ａと連通するものである。
したがって、吸込具Ｂを吸込ホース３０の把手部４０に接続して電動送風機２１をが駆動するとその吸引作用にによって、吸込気流は前記開口７１、第一の吸引孔７４ｄ、吸気口８１ａを介して集塵袋２０内に吸込まれ、そして電動送風機２１の排気風は前記吸込ホース３０の外ホース３１の内部つまり排気風路を経て前記第一の嵌合管８６と第二の嵌合管８７の間に形成される空間つまり排気風路Ｈ、排出口８１ｂ、第一の排気孔７４ａ、風路室Ｓ、排気連通口８２ａおよび吐出口７３ａを介して外部に排気されるものである。
【００３６】
なお、前記第一の吸引孔７４ｄおよび吸気口８１ａは、本体７０の開口７１と第一の嵌合管８６の内部の吸込風路Ｆとを連通させる第一の吸込流路を構成するものであり、また、排出口８１ｂ、第一の排気孔７４ａ、風路室Ｓ、排気連通口８２ａおよび吐出口７３ａは、前記排気風路Ｈを外部に連通させる第一の排気流路を構成するものである。
【００３７】
つまり、前記吸込具Ｂを第一の状態としたときは、開口７１からは排気風は吹出すことはなく空気を吸込むだけであることから、接続具Ｂは吸込用の吸込具として機能するものであり、狭小な部分の塵埃を吸込みことによって掃除をすることができるものである。
【００３８】
また、上記第二状態としたときは、上述のように二つの第二の排気孔７４ｂと二つの排出口８１ｂとが、また、第二の吸引孔７４ｃと二つの吸気口８１ａのうちの一つつまりいずれか一方とが対向し、また、図５（Ｂ）、図６に示すように、吐出口７３ａは外側摺接壁８２によって遮蔽され、また、連通孔７２ａは内側摺接壁８３に形成した開口８３ｂと対向している。また、遮蔽壁７４に形成した第一の吸引孔７４ｄは、隔壁８１によって遮蔽され、また、隔壁８１に形成された他方の吸気口８１ａは前記遮蔽壁７４によって遮蔽されている。
【００３９】
つまり、この第二の状態では、本体７０の吸引口７３ｂ、第二の開口８３ｈ、風路７４ｅ、第二の吸込孔７４ｃ、吸気口８１ａを経て第一の嵌合管８６の内部の吸込風路Ｆに連通し、また、第一の嵌合管８６と第二の嵌合管８７との間の空間つまり排気風路Ｈは二つの排出口８１ｂ、二つの第二の排気孔７４ｂ、風路室Ｓ、第一の開口８３ｂ、連通口７２ａを経て本体の７０の開口７１に連通するものである。
【００４０】
したがって、この接続具Ｂを吸込ホース３０の把手部４０に接続して電動送風機２１を駆動するとその吸引作用にによって、吸込気流は前記吸引口７３ｂ、第二の開口８３ｈ、風路７４ｅ、第二の吸込孔７４ｃ、吸気口８１ａ、吸込風路Ｆ、吸込ホース３０の内ホース３２の内ホース３２の内部つまり吸込風路を経て集塵袋２０内に吸込まれ、そして、電動送風機２１から排気された排気風は前記吸込ホース３０の外ホース３１の内部つまり排気風路を経て前記第一の嵌合管８６と第二の嵌合管８７の間に形成される排気風路Ｈ、二つの排出口８１ｂ、二つの第二の排気孔７４ｂ、風路室Ｓ、第一の開口８３ｂ、連通口７２ａを経て本体の７０の開口７１から吹出される。
【００４１】
なお、前記吸引口７３ｂ、第二の開口８３ｈ、風路７４ｅ、第二の吸込孔７４ｃ、吸気口８１ａは第一の嵌合管８６の吸込風路Ｆと開口７１を介することなく外部に連通させる第二の吸込流路を構成するものであり、また、二つの排出口８１ｂ、二つの第二の排気孔７４ｂ、風路室Ｓ、第一の開口８３ｂ、連通口７２ａは、第一の嵌合管８６と第二の嵌合管８７との間の排気風路Ｈと本体の７０の開口７１を連通させる第二の排気流路を構成するものである。
【００４２】
つまり、この第二の状態としてときは、開口７１からは空気は吸い込まれることなく排気風のみを吹出すようにのみ機能するものである。したがって、接続具Ｂは排気風を吹出し狭小な部分から塵埃を吹き飛ばしてみ掃除をする吹付け用の吸込具として機能させることができるものである。
【００４３】
上述のように吸込具Ｂは、本体７０とこの本体７０の基端側に回動可能に取り付けた接続管８０を取り付け、本体７０と接続管８０とに亘って本体７０の開口７１を接続管８０の吸込風路Ｆに連通させる第一の吸込流路と、接続管８０の排気風路Ｈを開口７１に還流させることなく外部に排気させる第一の排気流路と、外気を開口７１を介しない吸引口７３ｂと吸込風路Ｆに連通させる第二の吸込流路と、排気風路Ｈを本体７０の開口に連通させる第二の排気流路とを形成し、前記本体７０と接続管８０を相対的に回動させることによって、第一の吸込流路と第一の排気流路とが構成される態様と、第二の吸込流路と第二の排気流路とを構成する態様に切り換えることができることから、一つの吸込具を吸込用として機能させることも、吹付け用としても機能させることができるものである。
【００４４】
また、本体７０に対して接続管８０を回動するようにしたことから、
吸込ホース３０の把手部４０に吸込具Ｂを接続した状態で、いずれかの方向に回動させるという簡単な操作で吸込用と吹出し用に切り換えることができるためその操作性は極めてよいものでる。
【００４５】
なお、上記実施の形態においては、本体７０と接続管８０を周方向に回動させることによって吸込用と吹出しように切り換える構成としたが、これは軸方向に移動させることによって吸込用と吹出し用に切り換える構成としてもよいものである。
【００４６】
また、第一の吸込流路と第一の排気風路および第二の吸込風路と第二の排気風を構成する具体的構造は、上記実施の形態に示したものに限らず、具体的設計の際に適宜な構造とすることができるものである。
【００４７】
また、上記実施の形態においては、吸込具をいわゆるキャニスタータイプの循環式掃除機に用いる場合について説明したが、これはハンデータイプなどの他の形式の循環式掃除機にも適用できるものであり、前記ハンデータイプの循環式掃除機に用いる場合は、吸込ホースを介することなく直接掃除機本体の接続口に接続して用いることもできるものである。
【００４８】
【発明の効果】
上記のように請求項１の発明は、吸込具を、先端部に開口を有するとともに基端部にそれぞれ外部に開口する吸引口と吐出口とを有する吸込具本体と、この吸込具本体の基端部に相対移動可能に設けられるとともに吸込風路と排気風路を有する接続管とから構成さ、吸込具本体の前記開口を接続管の吸込風路に連通させる第一の吸込流路と、接続管の排気風路を前記吐出口に連通させる第一の排気流路と、前記吸込具本体の吸引口を接続管の吸込風路に連通させる第二の吸込流路と、接続管の排気風路を吸込具本体の開口に連通させる第二の排気流路とを形成し、前記吸込具本体と接続管とを相対的に移動させて、第一の吸込流路と第一の排気流路とを構成する態様と、第二の吸込流路と第二の排気流路とを構成する態様に切り換えるようにしたことから、吸込具を、前記吸込具本体と接続管とを相対的に移動させて、第一の吸込流路と第一の排気流路とが構成する態様とすることにより吸込用として機能させ、また、第二の吸込流路と第二の排気流路とを構成する態様とすることにより吹付け用として機能させるこことができ、したがって、この吸込具を循環式電気掃除機に用いたときは、狭小な部分の掃除をする場合において、一つの吸込具を必要に応じて吸込用または吹付け用として機能させることができるため、使用時における操作、収納時などにおける取り扱いが容易となり、コスト的にも安価とすることができるという効果を有するものである。
また、請求項２の発明は、吸込具を、先端部に開口を有し少なくとも基端部を円形とした内管とこの内管の外周に離間させて環状壁を形成するととともに、前記内管および環状壁の開口を遮蔽する遮蔽壁を形成した吸込具本体と、前記遮蔽壁に気密的に摺接する隔壁とこの隔壁の一端側に前記環状壁の内周面にその外周面を気密的に摺接する環状の外側摺接壁と前記内管の外周面にその内周面を気密的に摺接する内側摺接壁とを有し内部を風路室とした嵌合部が形成され、他端側に吸込風路を形成する第一の嵌合管とこの第一の嵌合管の外周に排気風路を形成するように第二の嵌合管を形成した接続管とから構成され、前記吸込具本体の内管の周壁に連通口と吸気連通孔を、前記遮蔽壁の前記内管の内側の領域に第一の吸込孔および第二の吸引孔を、前記内管と環状壁の間の領域に前記接続管の風路室に連通する第一の排気孔および第二の排気孔を、前記環状壁に吐出口および吸引口を形成し、前記接続管の隔壁の第一の嵌合管の内側の領域に前記第一の吸込孔と第二の吸込孔とに選択的に連通する吸気孔を、第一の嵌合管と第二の嵌合管との間の領域に、前記吸気孔が第一の吸込孔と連通したとき前記第一の排気孔と連通し、第二の吸込孔と連通したとき第二の排気孔と連通する排出口を、前記外側摺接壁に前記排出口と第一の排気孔が連通したとき前記吐出口および吸引口にそれぞれ連通する排気連通口を、前記内側摺接壁に前記吸気孔が前記第二の吸込孔に連通し、かつ前記排出口が第二の排気孔に連通したとき、前記連通孔および前記吸引口に連通する第一の開口および第二の開口を形成したことから、吸込具本体と接続管を相対的に周方向に回動させることにより、吸気孔を第一の吸込孔と連通させるとともに排出口を第一の排気孔に連通させると、吸引口は外側摺接壁によって、連通口は内側摺接壁によってそれぞれ遮蔽されるとともに、排出口は第一の排気孔、排気連通口を介して吐出口に連通するため、吸込具本体の開口は接続管の第一の嵌合管の内部吸込風路と連通し、また、接続管の第二の嵌合管の内部の排気風路は吸込具本体の吐出口と連通する流路が形成され、また、吸気孔を第二の吸込孔と連通させると排出口は第二の排気口に連通し、連通口は第一の開口と吸引口は第二の開口とそれぞれ連通するため、吸引口は接続管の第二の嵌合管の吸込風路に連通し、吸込具本体の開口は接続管の第二の嵌合管の吸込風路に連通する流路が形成されることから、この吸込具を循環式電気掃除機に用いたときは、狭小な部分の掃除をする場合において、必要に応じて吸込む流路を形成して塵埃を吸込んで掃除をすることも、吹出す流路を形成して排気風を吹き付けて塵埃を噴出させて掃除をすることも一つの吸込具によってなすことができるという効果を有するものである。
また、請求項３の発明は、外部に開口する吸込口と還流口とを有するとともに、集塵装置が配設され前記吸込口に連通した集塵室、この集塵室の下流側に設けられ電動送風機を収納する送風機室を有する循環式電気掃除機の掃除機本体の前記吸込口と還流口とに、請求項１または請求項２の吸込具の第一の嵌合管と第二の嵌合管を連通させて接続したとしたものであることから、掃除中における狭小な部分の掃除をする場合において、必要に応じて塵埃を吸込んで掃除をすることも、排気風を吹き付けて塵埃を噴出させて掃除をすることも一つの吸込具によってなすことができることから、従来のように都度吸込具を交換をするという煩わしい操作の必要がなく、また、吸込具は一つであることからその取り扱いが容易でとなるなどの効果を有するものである。
【図面の簡単な説明】
【図１】本発明の実施の形態における循環式電気掃除機に吸込ホースなどを接続し一部を断面した状態の側面図。
【図２】上記循環式電気掃除機の吸込ホースと延長管の接続関係を示す部分断面図。
【図３】上記循環式電気掃除機の吸込ホースに吸込具を接続した状態の一部を断面した側面図。
【図４】上記吸込具の要部を示す図で、（Ａ）は軸方向と直交する方向で断面した図であり（（Ｂ）図のＸ−Ｘ線での断面）、（Ｂ）は軸方向に沿って断面した側断面図である。
【図５】上記吸込具の要部を示す図で、（Ａ）は軸方向と直交する方向に断面した図であり（（Ｂ）図のＸ−Ｘ線での断面）、（Ｂ）は軸方向に沿って断面した側断面図である。
【図６】上記吸込具の軸方向と直交する方向での断面図（図５のＹ−Ｙ線での断面図）。
【図７】上記吸込具の軸方向と直交する方向での断面図（図４のＹ−Ｙ線での断面図）。
【符号の説明】
Ａ循環式電気掃除機
Ｂ吸込具
１掃除機本体
７０吸込具本体（吸込具の一部）
７１吸込具の開口
７２内管
７２ａ連通口（第二の排気流路の一部）
７３環状壁
７３ａ吐出口（第一の排気流路の一部）
７３ｂ吸引口（第二の吸込流路の一部）
７４遮蔽壁
７４ａ第一の排気孔（第一の排気流路の一部）
７４ｂ第二の排気孔（第二の排気流路の一部）
７４ｃ第二の吸込孔（第二の排気流路の一部）
７４ｄ第一の吸込孔（第一の吸込流路の一部）
７４ｅ風路（第一の吸込流路の一部）
８０接続管（吸込具の一部）
８１隔壁
８１ａ吸気口（第一の吸込流路、第二の吸込流路の一部）
８１ｂ排出口（第一の排気流路、第二の排気流路の一部）
８３ａ排気連通口（第一の排気流路の一部）
８３ｂ第一の開口（第二の排気流路の一部）
８３ｈ第二の開口（第二の吸込流路の一部）
Ｆ接続管の吸込風路
Ｈ接続管の排気風路
Ｓ風路室（第一の排気流路、第二の排気流路の一部）[0001]
BACKGROUND OF THE INVENTION
The present invention provides a circulation type vacuum cleaner that removes dust sucked together with a suction airflow from a suction opening of a suction port body by a dust collector and then recirculates the dust to the suction port body and blows it out in the vicinity of the suction opening for cleaning. The present invention relates to a suction tool used and a circulation type electric vacuum cleaner using the suction tool.
[0002]
[Prior art]
A dust-collecting device removes dust sucked together with the suction airflow from the suction opening of the suction port body, and then returns to the suction port body and blows it near the suction opening for cleaning. Vacuum cleaners) have been known for some time.
This type of circulating vacuum cleaner is provided in the vacuum cleaner main body, and has a connection port body formed with a suction port for sucking a suction airflow together with dust and a reflux port for returning the exhaust air exhausted from the electric blower. The suction hose having the suction air passage and the exhaust air passage is connected, and the extension pipe having the suction air passage and the exhaust air passage is similarly connected to the suction hose, and the floor which is the suction port body is connected to the extension pipe. It is configured to connect brushes.
[0003]
And the suction port body has a suction chamber having a suction opening opened on the lower surface, and a blower outlet is provided in the vicinity of the suction opening, and the suction air flow sucked together with dust from the suction opening, the suction chamber, the extension pipe, Suction from the suction port of the connection port provided in the vacuum cleaner body through the suction air passage of the suction hose into the dust collector disposed in the dust collection chamber provided in the vacuum cleaner body. After removing the dust, the exhaust air is returned to the suction port body through the exhaust port, the suction hose, and the exhaust pipe of the extension pipe, and blown out from the outlet to blow out dust from the surface to be cleaned. Cleaning is performed by sucking the blown-out dust together with the blown-out exhaust air as a suction airflow.
[0004]
Also, in this type of circulation type vacuum cleaner, as in general vacuum cleaners, for example, by sucking dust in a narrow place such as a sill groove in a window frame, or by blowing exhaust air or dust. In order to remove by blowing out, an accessory suction tool generally called a crane mouth is used.
[0005]
However, since the extension pipe and the suction hose (hereinafter referred to collectively as the extension pipe and the suction hose) of the circulation type vacuum cleaner are formed with the suction air path and the exhaust air path as described above. In addition, for example, when sucking and removing dust in a narrow space such as a sill groove of a window frame, a suction tool configured to communicate only with a suction air passage such as the suction hose is used. When removing by blowing dust and blowing out dust, a suction tool configured to communicate only with an exhaust air passage such as a suction hose is used. That is, two types of suction tools for suction and blowout are required.
[0006]
For this reason, when cleaning is to be performed by suction or blowout depending on the cleaning location during cleaning, a troublesome operation of reconnecting the suction suction tool and the suction suction tool to the suction hose or the like is necessary. In addition, since two kinds of suction tools are required, there are problems such as troublesome handling at the time of storage and the need for a storage space, and a problem that the cost increases.
[0007]
[Problems to be solved by the invention]
As described above, the suction tools used in the conventional circulation type vacuum cleaner require two types of suction and blowout depending on the air passage configuration unique to the circulation type vacuum cleaner, so suction according to the cleaning place during cleaning In addition, when cleaning by blowing, it is necessary to reconnect the suction suction tool and the suction suction tool to the suction hose each time, and the number of suction tools is large. There is a problem that handling during storage becomes troublesome and a storage space is required, and there is a problem that the cost increases.
[0008]
[Means for Solving the Problems]
This invention was made in view of the above circumstances, and the invention according to claim 1 is a suction tool main body having a suction port and a discharge port each having an opening at the distal end and an opening at the base end, respectively. The suction tool main body includes a connection pipe having a suction air passage and an exhaust air passage, which is provided at a proximal end portion of the suction tool body, and communicates the opening of the suction tool body with the suction air passage of the connection pipe. A suction passage, a first exhaust passage for connecting the exhaust air passage of the connecting pipe to the discharge port, and a second suction passage for connecting the suction port of the main body of the suction tool to the suction air passage of the connecting pipe And a second exhaust passage that communicates the exhaust air passage of the connecting pipe with the opening of the suction tool body, and the first suction passage is moved relative to the suction tool body and the connecting pipe. And a first exhaust flow path, a second suction flow path, and a second exhaust flow path It is obtained by a suction tool which is adapted to switch to that mode.
In this way, the invention of claim 1 includes a suction tool main body having a suction port and a discharge port that are open to the outside at the base end portion, and a base end of the suction tool main body. A first suction flow path that is provided in a portion so as to be relatively movable and includes a connection pipe having a suction air path and an exhaust air path, and that communicates the opening of the suction tool body with the suction air path of the connection pipe; A first exhaust passage that communicates the exhaust air passage of the connection pipe with the discharge port, a second suction passage that communicates the suction port of the suction tool body with the suction air passage F of the connection pipe, and a connection pipe A second exhaust passage that communicates the exhaust air passage with the opening of the suction tool body, and the relative movement of the suction tool body and the connecting pipe moves the first suction passage and the first It is cut into an aspect that constitutes an exhaust passage and an aspect that constitutes a second suction passage and a second exhaust passage. Therefore, the suction tool is configured such that the first suction flow path and the first exhaust flow path are configured by relatively moving the suction tool body and the connection pipe. It has the effect | action that it can be made to function as an object for spraying by making it function as an object, and setting it as the aspect which comprises a 2nd suction flow path and a 2nd exhaust flow path. Therefore, when this suction tool is used for a circulation type vacuum cleaner, when cleaning a narrow part, one suction tool can be made to function as a suction or a spray as needed. Operation during use, handling during storage and the like are facilitated, and the cost can be reduced.
According to a second aspect of the present invention, there is provided an inner tube having an opening at the distal end portion and a circular base end portion and an annular wall spaced apart from the outer periphery of the inner tube, and the inner tube and the annular wall. A suction tool main body formed with a shielding wall that shields the opening, a partition wall that is airtightly slidably contacted with the shielding wall, and an annular surface that is airtightly slidably contacted with the outer peripheral surface of the annular wall on one end side of the partition wall. A fitting portion is formed which has an outer sliding contact wall and an inner sliding contact wall which is airtightly slidably contacted with the outer peripheral surface of the inner pipe, and has an air passage chamber inside. A first fitting pipe that forms a path and a connection pipe that forms a second fitting pipe so as to form an exhaust air passage on the outer periphery of the first fitting pipe,
A communication port and an intake communication hole are provided in the peripheral wall of the inner pipe of the suction tool body, a first suction hole and a second suction hole are provided in a region inside the inner pipe of the shielding wall, and the inner pipe and the annular wall are provided. Forming a first exhaust hole and a second exhaust hole communicating with the air passage chamber of the connecting pipe in a region between the discharge port and the suction port in the annular wall;
An intake hole that selectively communicates with the first suction hole and the second suction hole in a region inside the first fitting pipe of the partition wall of the connection pipe, the first fitting pipe and the second fitting pipe When the intake hole communicates with the first suction hole, it communicates with the first exhaust hole and communicates with the second exhaust hole when communicated with the second suction hole. When the discharge port and the first exhaust hole communicate with the outer sliding contact wall, an exhaust communication port communicates with the discharge port and the suction port, respectively, and the inner sliding contact wall has the intake hole with the intake port. A suction tool that forms a first opening and a second opening communicating with the communication port and the suction port when the discharge port communicates with a second exhaust port and communicates with the second suction hole; It is.
[0009]
As described above, the invention according to claim 2 forms the annular wall by separating the suction tool from the inner tube having an opening at the distal end portion and having a circular base end portion and the outer periphery of the inner tube. A suction tool main body having a shielding wall that shields the opening of the pipe and the annular wall, a partition wall that is airtightly slidably contacted with the shielding wall, and an outer peripheral surface of the annular wall that is hermetically sealed on one end side of the partition wall. A fitting portion is formed which has an annular outer sliding contact wall in sliding contact with and an inner sliding contact wall in airtight contact with the inner peripheral surface on the outer peripheral surface of the inner tube, and the inside is an air passage chamber. It is composed of a first fitting tube that forms a suction air passage on the end side, and a connection tube that forms a second fitting tube so as to form an exhaust air passage on the outer periphery of the first fitting tube,
A communication port and an intake communication hole are provided in the peripheral wall of the inner pipe of the suction tool body, a first suction hole and a second suction hole are provided in a region inside the inner pipe of the shielding wall, and the inner pipe and the annular wall are provided. Forming a first exhaust hole and a second exhaust hole communicating with the air passage chamber of the connecting pipe in a region between the discharge port and the suction port in the annular wall;
An intake hole that selectively communicates with the first suction hole and the second suction hole in a region inside the first fitting pipe of the partition wall of the connection pipe, the first fitting pipe and the second fitting pipe When the intake hole communicates with the first suction hole, it communicates with the first exhaust hole and communicates with the second exhaust hole when communicated with the second suction hole. When the discharge port and the first exhaust hole communicate with the outer sliding contact wall, an exhaust communication port communicates with the discharge port and the suction port, respectively, and the inner sliding contact wall has the intake hole with the intake port. When communicating with the second suction hole and when the discharge port communicates with the second exhaust hole, the first opening and the second opening communicating with the communication port and the suction port are formed.
By rotating the suction tool body and the connecting pipe relatively in the circumferential direction, the suction port is connected to the first suction hole and the discharge port is connected to the first exhaust hole. The communication port is shielded by the inner sliding contact wall by the wall, and the discharge port communicates with the discharge port via the first exhaust hole and the exhaust communication port. The exhaust air passage inside the second fitting pipe of the connection pipe is formed with a flow passage communicating with the discharge port of the suction tool body, and the intake hole. Is connected to the second suction hole, the discharge port communicates with the second exhaust port, and the communication port communicates with the first opening and the suction port with the second opening. The suction fitting main body communicates with the suction air passage of the second fitting tube, and the opening of the suction tool body communicates with the suction air passage of the second fitting tube of the connecting pipe. When this suction tool is used in a circulation type vacuum cleaner, a narrow passage is formed as needed to suck in dust and clean it. In addition, it is also possible to form a flow path to be blown out, blow off exhaust air, and blow out dust to perform cleaning, with a single suction tool.
According to a third aspect of the present invention, there is provided a dust collection chamber having a suction port and a reflux port that are open to the outside, a dust collection device provided in communication with the suction port, and a downstream side of the dust collection chamber. The first fitting pipe and the second fitting pipe of the suction tool of claim 1 or 2 are communicated with the suction port and the return port of the vacuum cleaner body having a blower chamber for storing the electric blower. It is a connected circulating vacuum cleaner.
Thus, the invention of claim 3 has a suction port and a reflux port that are open to the outside, a dust collection chamber in which a dust collecting device is provided and communicated with the suction port, and a downstream side of the dust collection chamber. The first fitting pipe and the second fitting pipe of the suction tool according to claim 1 or 2, wherein the suction port and the reflux port of the vacuum cleaner main body of the circulation type vacuum cleaner having a blower chamber for storing the electric blower. Since the fitting tube is connected, when cleaning a narrow part during cleaning, it is also possible to inhale dust as needed and clean it by blowing exhaust air and blowing out dust. Since it can be cleaned with a single suction tool, there is no need for the cumbersome operation of replacing the suction tool each time as in the past, and since there is only one suction tool, handling is difficult. Has the effect of being easy Than it is.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a view showing a configuration of a circulating cleaner A, that is, a state in which a suction hose 30, an extension pipe 50 and a floor brush 60 are connected to the cleaner body 1, and as shown in the figure, the cleaner body 1 is a main body case 10 in which a dust collection chamber 11, a blower chamber 12 provided on the downstream side of the dust collection chamber 11, and a reel chamber (not shown) provided in a rear portion of the blower chamber 12 are formed, A dust collecting bag 20 which is a dust collecting device detachably disposed in the dust collecting chamber 11, an electric blower 21 housed in the blower chamber 12, and a cord reel (not shown) provided in the reel chamber (not shown). Etc.
[0011]
In addition, a connection port 15 in which a suction port 13 and a reflux port 14 are formed is formed in the front portion of the main body case 10, and the reflux port 14 and the blower chamber 12 are connected to a reflux path 14a. Communicated through.
An opening / closing lid 16 that opens and closes an opening (not shown) of the dust collecting chamber 11 is formed on the upper part of the dust collecting chamber 11 of the main body case 10, and a traveling wheel 17 is provided on the rear side wall below the front portion. A swivel wheel 18 is attached to the side.
[0012]
Next, the suction hose 30 is connected to a hose portion 33 including a flexible outer hose 31 and an inner hose 32 arranged concentrically in the outer hose 31, and one end side of the hose portion 33. A connection port body 34 that can be attached to and detached from the connection port 15 and a handle portion 40 connected to the other end side are configured. The passage formed in the inner hose 32 forms a suction air passage, and is formed in the outer hose 31, that is, between the inner peripheral wall of the outer hose 31 and the outer peripheral wall of the inner hose 32. The exhaust passage constitutes an exhaust air passage.
[0013]
Further, the connection port body 34 is provided with a suction pipe 35 connected to the inner hose 32 therein, and is formed between the inner peripheral wall of the outer hose 31 and the outer peripheral wall of the inner hose 32. An exhaust passage (not shown) that communicates with the formed passage, that is, the exhaust air passage is formed. When the connection port body 34 is connected to the connection port 15, the distal end portion of the suction pipe 35 enters the dust collection bag 20, and the exhaust passage (not shown) is a reflux provided in the connection port 15. It communicates with the mouth 14.
[0014]
The handle portion 40 includes a handle case 40a, an outer connection pipe 41 formed in a substantially square shape disposed in the handle case 40a, and a substantially letter-like shape disposed in the outer connection pipe 41. And the handle 48 formed integrally with the upper part of the handle case 40a.
The inner connecting pipe 42 is disposed concentrically inside the outer connecting pipe 41, the inner connecting pipe 42 forms a suction air passage, and the inner connecting pipe 42 is connected to the outer peripheral surface of the inner connecting pipe 42. A space formed between the inner peripheral surface of the outer connecting pipe 41 constitutes an exhaust air passage.
[0015]
One end portion (hereinafter also referred to as a rear end portion) of the inner connection pipe 42 is connected to the other end side of the inner hose 32, and one end portion (hereinafter also referred to as a rear end portion) of the outer connection pipe 41 is connected. The other end side of the outer hose 31 is connected.
[0016]
Further, the distal end side openings of the outer connecting pipe 41 and the inner connecting pipe 42 constitute a fitting hole 43 and a fitting hole 44, respectively, as shown in FIG. The distal ends of the outer tube 51 and the inner tube 52 of the extension tube 50 to be described in detail are respectively inserted and fitted. In addition, the fitting holes 44 and 43 are respectively inserted with and fitted with distal ends of a first fitting pipe 86 and a second fitting pipe 87 of a connection pipe 80 of the suction tool B described later. .
A plurality of control switches 48 a for controlling the electric blower 21 are provided on the front surface of the handle portion 48, and control signals from these control switches 48 a are signal lines wired to the outer hose 31. Via a (not shown), it is sent to a control means constituted by a microcomputer (not shown) provided in the main body case 10, and the electric blower 21 is controlled by this control means.
[0017]
Next, the extension tube 50 detachably connected to the handle portion 40 is composed of an outer tube 51 and an inner tube 52 disposed concentrically inside the outer tube 51 as shown in FIG. The interior of the inner tube 52 forms a suction air passage, and the space between the outer peripheral surface of the inner tube 52 and the inner peripheral surface of the outer tube 51 forms an exhaust air passage. .
Then, the distal end portions of the outer tube 51 and the inner tube 52 are fitted into the fitting holes 43 of the outer connecting tube 41 and the fitting holes 44 of the inner connecting tube 42 of the grip portion 40, respectively. It is supposed to be. Further, the opening (not shown) at the other end side, that is, the front end side of the outer pipe 51 and the inner pipe 52 is an outer joint pipe 63 of a joint pipe of the floor brush 60 described later and an inner joint pipe (not shown). It is a fitting hole (not shown) for fitting.
[0018]
Next, as shown in FIG. 1, the floor brush 60 is composed of a floor brush body 61 and a joint pipe 62 attached to the floor brush body 61 so as to be rotatable in the vertical direction. The joint pipe 62 is composed of an outer joint pipe 63 and an inner joint pipe (not shown) provided concentrically in the outer joint pipe 63, and the inside of the inner joint pipe is a suction air passage. The space between the outer peripheral surface of the inner joint pipe and the inner peripheral surface of the outer joint pipe 63 is an exhaust air passage.
The floor brush 60 is connected to the extension pipe 50 by fitting the distal ends of the outer joint pipe 63 and the inner joint pipe into the fitting holes of the distal end of the extension pipe 50, respectively.
[0019]
The floor brush body 61 is formed with a suction opening (not shown) on the lower surface, and a suction chamber (not shown) communicating with the suction opening and the inner joint pipe is formed inside. Also, an exhaust passage (not shown) that forms an exhaust air passage is formed in the upper portion of the suction chamber, and this exhaust passage is a space between the outer peripheral surface of the inner joint pipe and the inner peripheral surface of the outer joint pipe 63. That is, it communicates with an air outlet (not shown) formed in the vicinity of the exhaust air passage and the suction opening.
[0020]
Next, the operation when cleaning the circulation type vacuum cleaner A configured as described above will be described.
When cleaning, the suction hose 30, the extension pipe 50, and the floor brush 60 are connected to the cleaner body 1 as shown in FIG. 1, and the control switch 48a is operated. By this operation, the electric blower 21 is driven, and dust is sucked together with the suction airflow from a suction opening (not shown) of the floor brush 60 by the suction action of the electric blower 21, and this suction airflow is caused by the inner pipe 52 of the extension pipe 50 and the handle 40. The inside of the inner connecting pipe 42 and the inner hose 32 of the suction hose 30 is sucked into the dust collecting bag 20 disposed in the dust collecting chamber 11 through the suction air passage, and the dust is removed by the dust collecting bag 20. The sucked airflow passes through the electric blower 21 and is exhausted into the blower chamber 12 as exhaust air.
[0021]
This exhausted exhaust air flows between the reflux path 14 a, the reflux port 14, the outer peripheral surface of the inner hose 32 of the suction hose 30 and the inner peripheral surface of the outer hose 31, that is, the exhaust air path and the inner pipe 52 of the extension pipe 50. The floor brush main body 60 has an exhaust air passage between the outer peripheral surface and the inner peripheral surface of the outer pipe 51, that is, an exhaust air passage, and an outer peripheral surface of the inner joint pipe of the floor brush 60 and an inner peripheral surface of the outer joint pipe 61. It blows out toward the floor surface from the outlet through the exhaust passage.
[0022]
And the dust which exists on the floor surface is blown out by the blown-out exhaust air, and this blown-out dust is sucked into the dust collecting bag 20 through the above-described route, that is, the suction air passage, together with the suction air flow, and the suction from which the dust is removed. The airflow is sucked by the electric blower 21 and returned to the floor brush 60 as exhaust air again, blown to the floor surface from the outlet, and cleaned by blowing out dust on the floor surface.
[0023]
Next, the connection tool B used in the circulating cleaner A will be described.
As shown in FIG. 3, the connector B is used by being connected to the handle portion 40 (or the extension pipe 50), and includes a suction tool main body (hereinafter simply referred to as a main body) 70 and a base end of the main body 70. It is comprised from the connection pipe 80 attached to a part (part by the side of the handle part 40) so that rotation is possible. In the following description, the base end portion is also referred to as a base end side, and the side opposite to the base end portion is referred to as a front end side or a front end portion.
In addition, since the cleaner main body 1 and the suction hose 30 in FIG. 3 are the same structures as what was shown in FIG. 1, the same code | symbol is attached | subjected to the same part.
[0024]
The main body 70 has a base end formed in a circular shape (cylindrical shape), and is formed in a flat shape in the width direction from the vicinity of the base end to the tip, and the projection of the tip is projected from the side. It is formed in a shape. And the opening 71 is formed in the front-end | tip part as shown in FIG. Since it is formed in such a shape, it can be cleaned by inserting the tip side into a narrow portion such as a sill groove of a window frame.
[0025]
Further, the base end side of the main body 70 is formed by an inner tube 72 having a circular cross section as shown in FIGS. 4 to 7 and an annular wall 73 formed concentrically and spaced apart from the outer periphery of the inner tube 72. Yes. A shielding wall 74 is formed on the base end surfaces of the inner tube 72 and the annular wall 73.
As shown in each figure, a communication port 72a is formed in the tube wall on the upper surface side (the surface that becomes the upper side when used) of the inner tube 72, and the lower surface side (the surface that becomes the lower side when used) On the wall surface, an intake communication hole 72b is formed at a position facing the communication port 72a (position shifted by 180 degrees). The annular wall 73 is formed with a discharge port 73a at a position facing the communication port 72a formed in the inner pipe 72, and a suction port 73b is formed at a position facing the intake communication port 72b. ing.
[0026]
The shielding wall 74 between the inner tube and the outer tube (hereinafter also referred to as an outer shielding wall) has an arc-shaped opening on the upper surface side as shown in FIGS. A first exhaust hole 74a is formed, and two second exhaust holes 74b are formed at a position shifted by 90 degrees from the first exhaust hole 74a.
In addition, a second suction hole 74c having a fan-shaped opening is formed on the lower side of the shielding wall 74 located on the inner side of the inner tube 72 (hereinafter also referred to as an inner shielding wall). Two first suction holes 74d are formed at positions 90 degrees apart from the second suction holes 74c. The second suction hole 74c communicates with the intake communication hole 72b through an air passage 74e formed by a U-shaped partition wall 72f as shown in FIGS. The air passage 74e is a part of the intake communication hole 72b.
[0027]
The outer shielding wall has a slit-like arc-shaped fitting hole 74f formed along the circumferential direction at a corner with the inner circumferential surface of the annular wall 73, and a rib that connects the outer shielding wall and the inner shielding wall. It is partitioned and formed by (not shown). The arcuate fitting hole 74f is formed in an arc over a range that divides the circumference into approximately equal halves.
[0028]
Next, as shown in FIGS. 4 and 5, the connecting pipe 80 is formed on the partition wall 81 slidably contacting the shielding wall 74 of the main body 70 in an airtight state, that is, on one end side of the partition wall 81, that is, on the main body 70 side. A C-shaped outer slidable contact wall 82 (see FIGS. 6 and 7) that airtightly contacts the outer peripheral surface of the annular wall 73 and the outer peripheral surface of the inner tube 72 are hermetically sealed. C-shaped inner slidable contact wall 83 (see FIGS. 6 and 7) that slidably contact, and a bottom wall 84 (see FIG. 6) formed integrally with the leading edges of the inner slidable contact wall 83 and the outer slidable contact wall 82. 4 and FIG. 5) and a partition wall 82f (see FIG. 6 and FIG. 7) formed integrally with the circumferential edge of the inner sliding wall 83 of the outer sliding wall 82, the rear end side is opened. A fitting portion 85 having a C-shaped groove formed therein, and a first fitting tube 86 formed on the other end side of the partition wall 81, that is, on the handle portion 40 side. And a second Hamagokan 87. formed on the outer periphery of the first Hamagokan 86.
Note that the inside of the fitting portion 85 is an air passage chamber S. The space formed between the first fitting tube 86 and the second fitting tube 87 is an exhaust air passage H, and the inside of the first fitting tube 86 is a suction air. Road F. Further, the first fitting tube 86 and the second fitting tube 87 are fitted into the fitting hole 44 and the fitting hole 43 of the handle portion 40 as described above.
[0029]
Further, in the portion surrounded by the first fitting tube 86 of the partition wall 81 (hereinafter also referred to as an inner partition wall), as shown in FIGS. 4 and 5, two intake ports 81a each having a fan-shaped opening are opposed to each other. In addition, a portion of the partition wall 81 (hereinafter also referred to as an outer partition wall) between the first fitting tube 86 and the second fitting tube 87 is connected to the two intake ports 81a. Discharge ports 81b made of arcuate openings are formed opposite to each other at portions shifted by 90 degrees.
[0030]
The intake port 81a is formed in a similar shape to the first suction hole 74d and the second suction hole 74c formed in the shielding wall 74, that is, the inner shielding wall, and the opening area thereof is substantially the same. Further, the discharge port 81b is formed in a similar shape to the first exhaust hole 74a and the second exhaust hole 74b formed in the outer shielding wall, and the opening area thereof is formed substantially the same. Yes.
[0031]
In addition, the outer sliding contact wall 82 has a discharge port 73a and a suction port 73b formed in the annular wall 73 and the axial center of the one discharge port (discharge port located on the upper side) 81b coincides with the center thereof. The two exhaust communication ports 82a having the same shape as those of FIG. 6 are formed at positions facing each other, that is, at positions shifted by 180 degrees, and at positions shifted by 90 degrees from the exhaust communication ports 82a, as shown in FIGS. As shown in the figure, a second suction hole 73b formed in the annular wall 73 and a suction communication hole 72b are communicated with each other by the partition wall 82f formed integrally with the outer sliding contact wall 82 and the inner sliding contact wall 83. An opening 83h is formed.
Further, a first opening formed in the same shape as the communication port 72a as shown in FIG. 5 to FIG. 7 at the position opposite to the second opening 83h of the inner sliding contact wall 83, that is, at a position shifted by 180 degrees. 83b is formed.
[0032]
The base portion of the outer sliding contact wall 82 of the fitting portion 85 is slidably fitted in an arcuate fitting groove 74f formed in the shielding wall 74, and the rotational relationship in the circumferential direction is as follows. The main body 70, that is, the inner tube 72 and the outer tube 73 can be rotated relative to each other by approximately 90 degrees.
[0033]
That is, the state shown in FIG. 4, that is, the first exhaust hole 74 a of the main body 70 and one discharge port 81 b of the connection pipe 80 face each other, and the two first suction holes 74 d of the main body 70 and the connection pipe 80 As shown in FIG. 5, when the two suction ports 81a are rotated approximately 90 degrees (for example, from the state shown in FIG. 7 to the state shown in FIG. 6) from either state (hereinafter referred to as the first state). The two second exhaust holes 74b formed in the shielding wall 74 of the main body 70, that is, the outer shielding wall, and the partition wall 81 of the connecting pipe 80, that is, the two discharge ports 81b formed in the outer partition wall face each other. The second suction hole 74c formed in the inner shielding wall and one of the two intake ports 81a formed in the inner partition wall of the connection pipe 80 are opposed to each other (hereinafter referred to as a second state). It has become.
[0034]
In the first state, as shown in FIG. 4, the two second exhaust holes 74b formed in the outer shielding wall are shielded by the partition wall 81, and the second suction formed in the inner shielding wall. The hole 74 c is shielded by the partition wall 81. 4B, the communication port 72a is shielded by the inner sliding contact wall 83, the discharge port 73a is opposed to the exhaust communication hole 82a, and the suction port 73b is shielded by the outer sliding contact wall 82. Has been.
[0035]
That is, in the first state, the opening 71 of the main body communicates with the inside of the first fitting tube 86, that is, the suction air passage F via the first suction hole 74d and the intake port 81a. The space formed between the one fitting pipe 86 and the second fitting pipe 87, that is, the exhaust air passage H, is a discharge port 81b, a first exhaust hole 74a, an air passage chamber S, an exhaust communication port 82a, and a discharge. It communicates with the outlet 73a.
Therefore, when the suction tool B is connected to the handle portion 40 of the suction hose 30 and the electric blower 21 is driven, the suction air flow is caused by the suction action through the opening 71, the first suction hole 74d, and the suction port 81a. The air blown into the dust bag 20 and the exhaust air from the electric blower 21 passes through the inside of the outer hose 31 of the suction hose 30, that is, through the exhaust air passage, to the first fitting pipe 86 and the second fitting pipe 87. It is exhausted to the outside through the space formed between them, that is, the exhaust air passage H, the exhaust port 81b, the first exhaust hole 74a, the air passage chamber S, the exhaust communication port 82a, and the discharge port 73a.
[0036]
The first suction hole 74d and the intake port 81a constitute a first suction channel that communicates the opening 71 of the main body 70 with the suction air channel F inside the first fitting tube 86. In addition, the discharge port 81b, the first exhaust hole 74a, the air passage chamber S, the exhaust communication port 82a, and the discharge port 73a constitute a first exhaust passage that communicates the exhaust air passage H with the outside. It is.
[0037]
That is, when the suction tool B is in the first state, the exhaust air is not blown out from the opening 71 but only sucks air, so that the connection tool B functions as a suction tool for suction. It can be cleaned by sucking dust in a narrow part.
[0038]
In the second state, as described above, the two second exhaust holes 74b and the two exhaust ports 81b are one of the second suction hole 74c and the two intake ports 81a. That is, one of them faces each other, and as shown in FIGS. 5B and 6, the discharge port 73 a is shielded by the outer sliding contact wall 82, and the communication hole 72 a is formed on the inner sliding contact wall 83. It faces the formed opening 83b. The first suction hole 74 d formed in the shielding wall 74 is shielded by the partition wall 81, and the other intake port 81 a formed in the partition wall 81 is shielded by the shielding wall 74.
[0039]
That is, in this second state, the suction air inside the first fitting pipe 86 through the suction port 73b, the second opening 83h, the air passage 74e, the second suction hole 74c, and the suction port 81a of the main body 70. The space between the first fitting tube 86 and the second fitting tube 87, that is, the exhaust air passage H, communicates with the passage F, and has two exhaust ports 81b, two second exhaust holes 74b, wind It communicates with the opening 71 of the main body 70 through the passage S, the first opening 83b, and the communication port 72a.
[0040]
Therefore, when this connector B is connected to the handle portion 40 of the suction hose 30 and the electric blower 21 is driven, the suction air flows into the suction port 73b, the second opening 83h, the air passage 74e, the second by the suction action. Are sucked into the dust bag 20 through the inner hose 32 of the inner hose 32 of the suction hose 30, that is, the suction air passage, and exhausted from the electric blower 21. The exhaust air flows through the inside of the outer hose 31 of the suction hose 30, that is, through the exhaust air passage, and the exhaust air passage H formed between the first fitting pipe 86 and the second fitting pipe 87, It blows out from the opening 71 of the main body 70 through the outlet 81b, the two second exhaust holes 74b, the air passage chamber S, the first opening 83b, and the communication port 72a.
[0041]
The suction port 73b, the second opening 83h, the air passage 74e, the second suction hole 74c, and the suction port 81a communicate with the outside without passing through the suction air passage F and the opening 71 of the first fitting tube 86. The second suction flow path is configured, and the two discharge ports 81b, the two second exhaust holes 74b, the air passage chamber S, the first opening 83b, and the communication port 72a This constitutes a second exhaust passage for communicating the exhaust air passage H between the fitting tube 86 and the second fitting tube 87 with the opening 71 of the main body 70.
[0042]
That is, in the second state, air functions only so as to blow out only the exhaust air from the opening 71 without being sucked. Therefore, the connection tool B can function as a suction tool for spraying by blowing exhaust air and blowing dust from a narrow portion for cleaning.
[0043]
As described above, the suction tool B is attached to the main body 70 and the connection pipe 80 rotatably attached to the base end side of the main body 70, and the opening 71 of the main body 70 is connected to the connection pipe 80 across the main body 70 and the connection pipe 80. 80, a first suction flow path communicating with the suction air flow path F, a first exhaust flow path for exhausting the exhaust air flow path H of the connecting pipe 80 to the outside without returning to the opening 71, and the outside air through the opening 71. A second suction passage that communicates with the suction port 73b that does not pass through and the suction air passage F, and a second exhaust passage that communicates the exhaust air passage H with the opening of the main body 70 are formed. The aspect which comprises a 1st suction flow path and a 1st exhaust flow path, and the 2nd suction flow path and a 2nd exhaust flow path by rotating 80 relatively It is possible to switch one suction tool to function as a suction In which it can also function as a use.
[0044]
In addition, since the connecting pipe 80 is rotated with respect to the main body 70,
Since the suction tool B is connected to the handle portion 40 of the suction hose 30, it can be switched between suction and blowout by a simple operation of rotating in either direction, so that the operability is very good.
[0045]
In the above embodiment, the main body 70 and the connecting pipe 80 are rotated in the circumferential direction so as to be switched between sucking and blowing, but this is moved in the axial direction for sucking and blowing. It is good also as a structure switched to.
[0046]
Moreover, the specific structure which comprises a 1st suction flow path, a 1st exhaust air path, and a 2nd suction air path, and a 2nd exhaust air is not restricted to what was shown in the said embodiment, and is concrete. An appropriate structure can be obtained at the time of design.
[0047]
Further, in the above embodiment, the case where the suction tool is used for a so-called canister type circulation cleaner is described, but this is also applicable to other types of circulation cleaners such as a handy type, When used in the handy type circulation cleaner, it can be directly connected to the connection port of the cleaner body without using a suction hose.
[0048]
【The invention's effect】
As described above, the invention according to claim 1 is a suction tool main body having a suction port and a discharge port that are open to the outside at the base end portion, and a base of the suction tool main body. A first suction flow path which is provided at the end portion so as to be relatively movable and includes a suction air path and a connection pipe having an exhaust air path, and which communicates the opening of the suction tool body with the suction air path of the connection pipe; A first exhaust passage that communicates an exhaust air passage of the connecting pipe with the discharge port; a second suction passage that communicates the suction port of the suction tool body with the suction air passage of the connecting pipe; and exhaust of the connecting pipe Forming a second exhaust passage for communicating the air passage with the opening of the suction tool body, and moving the suction tool body and the connecting pipe relatively to each other so that the first suction passage and the first exhaust flow are formed. So as to switch to an aspect that constitutes a path and an aspect that constitutes a second suction flow path and a second exhaust flow path. Therefore, the suction tool functions as a suction device by moving the suction tool main body and the connecting pipe relative to each other to form the first suction flow path and the first exhaust flow path. Moreover, it can be made to function as spraying by setting it as the aspect which comprises a 2nd suction flow path and a 2nd exhaust flow path, Therefore, this suction tool is used for a circulation type vacuum cleaner. When cleaning a narrow part, one suction tool can be used for suction or spraying as necessary, making it easy to handle during use and storage. The effect is that the cost can be reduced.
According to a second aspect of the present invention, the suction tool includes an inner tube having an opening at a distal end portion and a circular base end portion and an outer periphery of the inner tube to form an annular wall, and the inner tube And a suction tool main body formed with a shielding wall that shields the opening of the annular wall, a partition wall that is airtightly slidably contacted with the shielding wall, and an outer peripheral surface of the annular wall on the inner peripheral surface of one end of the partition wall. An annular outer sliding contact wall that is in sliding contact and an inner sliding contact wall that is hermetically slidably contacted with the outer peripheral surface of the inner tube, and a fitting portion having an air passage chamber inside is formed, and the other end A first fitting tube that forms a suction air passage on the side and a connecting tube that forms a second fitting tube so as to form an exhaust air passage on the outer periphery of the first fitting tube, A communication port and an intake communication hole are provided in the peripheral wall of the inner pipe of the suction tool main body, and a first suction hole and a second suction hole are provided in a region inside the inner pipe of the shielding wall. Forming a hole, a first exhaust hole and a second exhaust hole communicating with the air passage chamber of the connection pipe in a region between the inner pipe and the annular wall, and forming a discharge port and a suction port in the annular wall; An intake hole that selectively communicates with the first suction hole and the second suction hole in a region inside the first fitting pipe of the partition wall of the connection pipe, the first fitting pipe and the second fitting pipe When the intake hole communicates with the first suction hole, it communicates with the first exhaust hole and communicates with the second exhaust hole when communicated with the second suction hole. When the discharge port and the first exhaust hole communicate with the outer sliding contact wall, an exhaust communication port communicates with the discharge port and the suction port, respectively, and the inner sliding contact wall has the intake hole with the intake port. A first opening communicating with the communication hole and the suction port and a first opening communicating with the second suction hole and when the discharge port communicates with the second exhaust hole. Therefore, by rotating the suction tool body and the connecting pipe relatively in the circumferential direction, the suction hole is connected to the first suction hole and the discharge port is connected to the first exhaust hole. The suction port is shielded by the outer sliding contact wall, the communication port is shielded by the inner sliding contact wall, and the discharge port communicates with the discharge port via the first exhaust hole and the exhaust communication port. The opening of the connecting pipe communicates with the internal suction air passage of the first fitting tube of the connecting pipe, and the exhaust air passage inside the second fitting pipe of the connecting pipe communicates with the discharge port of the suction tool body. In addition, when the intake hole is communicated with the second suction hole, the discharge port communicates with the second exhaust port, and the communication port communicates with the first opening and the suction port respectively. The suction port communicates with the suction air passage of the second fitting pipe of the connection pipe, and the opening of the suction tool body is the second of the connection pipe. Since a flow passage communicating with the suction air passage of the fitting tube is formed, when this suction tool is used in a circulation type vacuum cleaner, a flow to be sucked in as necessary when cleaning a narrow portion. The effect of being able to clean by sucking in dust by forming a path, or by cleaning the exhaust by blowing exhaust air by forming a flow path to blow out can be achieved with one suction tool. It is what you have.
According to a third aspect of the present invention, there is provided a dust collection chamber having a suction port and a reflux port that are open to the outside, a dust collection device being provided and communicating with the suction port, and a downstream side of the dust collection chamber. The first fitting tube and the second fitting of the suction tool according to claim 1 or 2, wherein the suction port and the reflux port of the vacuum cleaner main body of the circulation type vacuum cleaner having a blower chamber for storing the electric blower. Since the joint pipe is connected and connected, when cleaning a narrow part during cleaning, it is also possible to inhale dust as needed and clean it by blowing exhaust air. Since it is possible to clean it with a single suction tool, there is no need for the cumbersome operation of replacing the suction tool each time as in the past, and there is only one suction tool. Such as easy handling and It is intended to.
[Brief description of the drawings]
FIG. 1 is a side view of a state in which a suction hose and the like are connected to a circulation type electric vacuum cleaner according to an embodiment of the present invention and a part thereof is cut in cross section.
FIG. 2 is a partial cross-sectional view showing a connection relationship between a suction hose and an extension pipe of the circulation type vacuum cleaner.
FIG. 3 is a side view of a part of a state in which a suction tool is connected to a suction hose of the circulation type vacuum cleaner.
4A and 4B are diagrams showing a main part of the suction tool, wherein FIG. 4A is a cross-sectional view in a direction orthogonal to the axial direction (cross-sectional view taken along line XX in FIG. 4B), and FIG. It is the sectional side view cut along the axial direction.
5A and 5B are diagrams showing a main part of the suction tool, wherein FIG. 5A is a cross-sectional view in a direction orthogonal to the axial direction (cross-sectional view taken along line XX in FIG. 5B), and FIG. It is the sectional side view cut along the axial direction.
6 is a cross-sectional view in the direction orthogonal to the axial direction of the suction tool (cross-sectional view taken along line YY in FIG. 5).
7 is a cross-sectional view in the direction orthogonal to the axial direction of the suction tool (cross-sectional view taken along line YY in FIG. 4).
[Explanation of symbols]
A Circulation type vacuum cleaner
B suction tool
1 Vacuum cleaner body
70 Suction tool body (part of suction tool)
71 Opening of suction tool
72 Inner pipe
72a Communication port (part of second exhaust flow path)
73 Annular wall
73a Discharge port (part of the first exhaust flow path)
73b Suction port (part of second suction flow path)
74 Shielding wall
74a First exhaust hole (part of the first exhaust passage)
74b Second exhaust hole (a part of the second exhaust passage)
74c 2nd suction hole (a part of 2nd exhaust flow path)
74d 1st suction hole (a part of 1st suction flow path)
74e Air channel (part of the first suction channel)
80 Connection pipe (part of suction tool)
81 Bulkhead
81a Intake port (first suction flow path, part of second suction flow path)
81b Discharge port (first exhaust passage, part of second exhaust passage)
83a Exhaust communication port (part of the first exhaust flow path)
83b 1st opening (a part of 2nd exhaust flow path)
83h Second opening (part of second suction flow path)
F Suction air passage for connecting pipe
H Exhaust air passage for connecting pipe
S air passage chamber (first exhaust passage, part of second exhaust passage)

Claims

A suction tool body having an opening at the distal end and a suction opening and a discharge opening opening to the outside at the base end, respectively, and a suction air passage and an exhaust are provided at the proximal end of the suction tool body so as to be relatively movable. A connection pipe having an air passage, and a first suction passage that communicates the opening of the suction tool main body with the suction air passage of the connection pipe; and a first suction passage that communicates the exhaust air passage of the connection pipe with the discharge port. An exhaust passage, a second suction passage for communicating the suction port of the suction tool body with the suction air passage of the connection pipe, and a second exhaust for communicating the exhaust air passage of the connection pipe with the opening of the suction tool body. Forming a flow path, relatively moving the suction tool main body and the connecting pipe to form a first suction flow path and a first exhaust flow path, and a second suction flow path, A suction tool characterized by switching to a mode that constitutes the second exhaust passage.

An inner tube having an opening at the distal end and at least a base end circularly and an annular wall formed apart from the outer periphery of the inner tube and a shielding wall for shielding the inner tube and the opening of the annular wall were formed. A suction tool main body, a partition wall that is slidably and slidably contacted with the shielding wall, an annular outer slidable contact wall that is slidably contacted with an inner peripheral surface of the annular wall at one end of the partition wall, and an inner tube A first fitting that has an inner sliding contact wall that hermetically slidably contacts the inner peripheral surface on the outer peripheral surface and that has an air passage chamber inside and a suction air passage on the other end side A pipe and a connecting pipe formed with a second fitting pipe so as to form an exhaust air passage on the outer periphery of the first fitting pipe,
A communication port and an intake communication hole are provided in the peripheral wall of the inner pipe of the suction tool body, a first suction hole and a second suction hole are provided in a region inside the inner pipe of the shielding wall, and the inner pipe and the annular wall are provided. Forming a first exhaust hole and a second exhaust hole communicating with the air passage chamber of the connecting pipe in a region between the discharge port and the suction port in the annular wall;
An intake hole that selectively communicates with the first suction hole and the second suction hole in a region inside the first fitting pipe of the partition wall of the connection pipe, the first fitting pipe and the second fitting pipe When the intake hole communicates with the first suction hole, it communicates with the first exhaust hole and communicates with the second exhaust hole when communicated with the second suction hole. When the discharge port and the first exhaust hole communicate with the outer sliding contact wall, an exhaust communication port communicates with the discharge port and the suction port, respectively, and the inner sliding contact wall has the intake hole with the intake port. A first opening and a second opening communicating with the communication port and the suction port when the discharge port communicates with the second exhaust port. Suction tool.

In addition to having a suction port and a reflux port that open to the outside, a dust collection chamber in which a dust collector is disposed and communicated with the suction port, and a blower chamber that is provided downstream of the dust collection chamber and houses an electric blower A circulation system characterized in that the first fitting pipe and the second fitting pipe of the suction tool of claim 1 or 2 are connected to and connected to the suction port and the reflux port of the vacuum cleaner body. Electric vacuum cleaner.