JP3805229B2 - Connection structure of connecting pipe of vacuum cleaner - Google Patents

Connection structure of connecting pipe of vacuum cleaner Download PDF

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JP3805229B2
JP3805229B2 JP2001319084A JP2001319084A JP3805229B2 JP 3805229 B2 JP3805229 B2 JP 3805229B2 JP 2001319084 A JP2001319084 A JP 2001319084A JP 2001319084 A JP2001319084 A JP 2001319084A JP 3805229 B2 JP3805229 B2 JP 3805229B2
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connection
space
connecting pipe
pipe
lock element
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JP2003116754A (en
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光治 二宮
昌宏 佐藤
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Sharp Corp
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Sharp Corp
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Description

【０００１】
【発明の属する技術分野】
本発明は、電気掃除機の吸気管の一端に設けた接続管を掃除機本体に着脱自在に接続する接続構造に関するものである。
【０００２】
【従来の技術】
図７は、従来の電気掃除機の一例を示す外観側面図である。１は、電動送風機２を内装した掃除機本体である。掃除機本体１の前面には、電動送風機２の吸気側に連通する接続口７が筒状に開口形成されている。また、電動送風機２の排気側は、外気に連通している。３は、床面清掃用の吸込口体であり、その上面には一定の長さで伸縮可能な吸気管４の一端が回動自在に装着されている。吸気管４の他端側の屈曲部には、取っ手４ａが設けられている。吸気管４の他端には、所定の長さに選ばれた可撓性を有するホース５が固着されている。更に、ホース５の下流端には、ホース５を接続口７に着脱可能に接続するために、接続管６が取付けられている。
【０００３】
図８は、この電気掃除機における接続管６と接続口７の接続構造を示す要部の断面図である。筒状の接続口７の先端の内面には、凹部１１が設けられている。接続管６の外面で、先端から所定の距離を隔てた部分には、ロック子８が没入可能な空間１０が形成されている。この接続管６の空間１０の一部は、図示のごとく、接続口７の凹部１１と対向している。
【０００４】
ロック子８は、空間１０より前方において、回動軸８ａを介して接続管６に対して回動自在に軸支されている。空間１０の底面には、ロック子８を上方向（図中矢印Ｙと反対方向）に付勢する板バネ等のバネ９が設けられている。空間１０の上面には、接続管６の外面と面一に一体形成された壁面６ａがあるので、バネ９に付勢されたロック子８は壁面６ａと当接して、その回動が規制される。
【０００５】
ロック子８の先端部は、接続口７の凹部１１に嵌合する凸部８１となっている。凸部８１は、傾斜面８１ａと垂直面８１ｂにて鉤型をなしている。ロック子８の長手のほぼ中央には、外部から押圧できる操作部８２が凸設されている。そして、空間１０の壁面６ａには、これらロック子８の凸部８１と操作部８２が挿通する孔が設けられている。したがって、ロック子８はバネ９に付勢されると、その凸部８１が凹部１１に嵌合するとともに、操作部８２が壁面６ａから空間１０の外部に突出する。
【０００６】
これにより、ロック子８が接続口７の凹部１１に係止されるので、接続管６に抜ける方向の力が加わっても、接続管６は接続口７から離脱しなくなる。接続管６を接続口７から抜き取るときは、ロック子８の操作部８２をバネ９の付勢力に抗して押し下げることにより、ロック子８と凹部１１の係合を解除する。
【０００７】
【発明が解決しようとする課題】
しかしながら、清掃時には取っ手４ａをつかんで掃除機本体１を引き回す必要があるため、掃除機本体１の移動中に段差などに衝突して、接続管６に強い引き抜きの力が加わった場合、ロック子８がバネ９の付勢力に抗して下方向（矢印Ｙの方向）に回動し、ロック子８の凸部８１が凹部１１から外れて、接続管６と共にホース５が掃除機本体１から抜けるというおそれがあった。
【０００８】
そこで、本発明は、簡単な操作で接続管を脱着可能でありながら、清掃中に接続管が本体から容易に抜けることのない電気掃除機の接続管の接続構造を提供することを目的とする。
【０００９】
【課題を解決するための手段】
上記目的を達成するため本発明の電気掃除機の接続管の接続構造は、電気掃除機本体の吸気経路の吸気側に設けられた接続口と、前記接続口の内面に設けられた凹部と、接続管を介して前記接続口に装着される吸気管と、前記接続管の外面に設けられた空間と、前記空間内に回動可能に軸支されたロック子と、前記ロック子の先端に形成された凸部と、前記ロック子を前記空間の外側へ付勢するバネとを備え、前記接続管を前記接続口に挿入することにより、前記バネの付勢力によって前記ロック子の凸部と前記接続口の凹部を嵌合させるものにおいて、前記ロック子の回動軸が前記接続管の軸方向にスライド可能なスライド溝を前記空間の内面に設けるとともに、前記ロック子の回動制止機構を前記空間及び前記ロック子に設けたことを特徴とする。
【００１５】
したがって、接続管を掃除機本体の接続口に接続すると、ロック子の回動制止機構が働き、接続管と接続口の強固な連結が保持される。
【００１６】
この場合、前記接続管を挿入後、わずかに引くことにより、前記空間の後面と前記ロック子の先端を互いの当接面で係合させることにより、ロック子の回動が制止される。具体的には、前記空間の後面と前記ロック子の先端の当接面を断面Ｌ字型に形成することによって実現できる。
【００１７】
また、電気掃除機本体の吸気経路の吸気側に設けられた接続口と、前記接続口の内面に設けられた空間と、接続管を介して前記接続口に装着される吸気管と、前記接続管の外面に設けられた凹部と、前記空間内に回動可能に軸支されたロック子と、前記ロック子の先端に形成された凸部と、前記ロック子を前記空間の外側へ付勢するバネとを備え、前記接続管を前記接続口に挿入することにより、前記バネの付勢力によって前記ロック子の凸部と前記接続管の凹部を嵌合させるものにおいて、前記ロック子の回動軸が前記接続管の軸方向にスライド可能なスライド溝を前記空間の内面に設けるとともに、前記ロック子の回動制止機構を前記空間及び前記ロック子に設けたことを特徴とする。
【００１８】
したがって、接続管を掃除機本体の接続口に接続すると、ロック子の回動制止機構が働き、接続管と接続口の強固な連結が保持される。
【００１９】
この場合、前記接続管を挿入後、わずかに引くことにより、前記空間の前面と前記ロック子の先端を互いの当接面で係合させることにより、ロック子の回動が制止される。
【００２０】
【発明の実施の形態】
本発明の第１の実施形態について図面を参照して説明する。図１は、本発明の第１の実施形態に係る電気掃除機の接続管の接続構造を示す要部の断面図である。この図において、図７及び図８の従来例と同じ名称の部材には同一の符号を附し、その詳細な説明を省略する。
【００２１】
凹部１１の前面には、斜面１１ａと垂直面１１ｂによって断面逆コの字型の凹凸が形成されている。凸部８１の前面にも、斜面８１ｃと垂直面８１ｂによって断面コの字型の凸凹が形成されている。
【００２２】
接続管６を接続口７へ装着する時の作業について説明する。まず、接続管６と接続口７を着脱自在に係合する係合機構について説明する。接続管６を接続口７とほぼ同軸となるようにまっすぐ（矢印Ｐの方向）に挿入する。このとき、ロック子８を目印として、接続管６の外面の空間１０側が上になるようにする。このようにして、接続管６を奥まで挿入すると、接続管６、空間１０、ロック子８等は破線で示す位置に達する。同時に、ロック子８の凸部８１が接続口７の凹部１１と嵌合する。なお、ロック子８は、回動軸８ａを有さず、単にバネ９で上方向に付勢されるものであってもよい。
【００２３】
ついで、接続管６と接続口７の上記嵌合（係合）を保持する保持機構について説明する。接続口７に挿入した接続管６を矢印Ｑの方向にわずかに引く。これにより、接続管６は実線で示す位置に達し、接続口７の凹部１１とロック子８の凸部８１の前面同士が当接し、それらに形成された凹部１１の逆コの字型の凹凸と凸部８１のコの字型の凸凹が相互に噛合し、ロック子８が空間１０内で下方向（矢印Ｙの方向）に回動するのが制止される。したがって、清掃中の衝撃により、接続管６に抜け方向（矢印Ｑの方向）に強い荷重が生じてもロック子８の凸部８１が、凹部１１から外れることはなく、接続管６と接続口７の連結が確実に保持される。
【００２４】
接続管６を接続口７から引き抜くときは、接続管６を矢印Ｐの方向へ押し込んで凹部１１と凸部８１の当接面の噛合を解除した後、ロック子８の操作部８２を矢印Ｙの方向へ押し下げて凹部１１と凸部８１の嵌合を解除する。そして、この状態で接続管６を矢印Ｑの方向へ引き抜く。
【００２５】
図２は、本実施形態の変形例を示している。接続口７の凹部１１とロック子８の凸部８１の当接面を、垂直方向から前方（矢印Ｑの方向）に傾斜角度θだけ傾いた凹の傾斜面１１ｃ及び凸のの傾斜面８１ｄにてそれぞれ形成している。そして、これらの傾斜面１１ｃ，８１ｄ同士の接触によって係合させ、ロック子８が空間１０内で下方向（矢印Ｙの方向）に回動するのが制止されるようにしている。したがって、清掃中の衝撃により、接続管６に抜け方向（矢印Ｑの方向）に強い荷重が生じてもロック子８の凸部８１が、凹部１１から外れることはなく、接続管６と接続口７の連結が確実に保持される。
【００２６】
本発明の第２の実施形態について図面を参照して説明する。図３は、本発明の第２の実施形態に係る電気掃除機の接続管の接続構造を示す要部の断面図である。この図において、図１の上記第１の実施形態と同じ名称の部材には同一の符号を附している。
【００２７】
この実施形態は、図１における接続管６の外面の空間１０と接続口７の内面の凹部１１の関係を逆にし、図３に示すように、接続口７の内面に空間１０を、接続管６の外面に凹部１１をそれぞれ形成したことを特徴としている。すなわち、筒状の接続口７の内面に、ロック子８が没入可能な空間１０を設け、接続管６の外面で、先端から所定の距離を隔てた部分に、凹部１１を形成している。この接続管６の凹部１１は、図示のごとく、接続口７の空間１０と対向している。
【００２８】
ロック子８は、空間１０の後部において、回動軸８ａを介して接続口７に対して回動自在に軸支されている。空間１０の上面には、ロック子８を下方向（図中矢印Ｚと反対方向）に付勢するコイルバネ等のバネ９が設けられている。空間１０の底面は開放されている。
【００２９】
ロック子８の先端部は、接続管６の凹部１１に嵌合する凸部８１となっている。凸部８１の前面は、前方が高く後方が低くなる傾斜面８１ａになされている。凸部８１の後面には、斜面８１ｃと垂直面８１ｂによって断面逆コの字型の凹凸が形成されている。凹部１１の前面にも、斜面１１ａと垂直面１１ｂによって断面コの字型の凸凹が形成されている。ロック子８の凸部８１のわずかに後方には、外部から押圧できる操作部８２が凸設されている。空間１０の上面には、操作部８２が挿通される孔７ａが設けられている。したがって、ロック子８はバネ９に付勢されても、前方へ折れ曲がった操作部８２が接続口７に当接し、その凸部８１以外が空間１０の下方へ露出することがないようになっている。
【００３０】
接続管６を接続口７へ装着する時の作業について説明する。まず、接続管６を接続口７とほぼ同軸となるようにまっすぐ（矢印Ｐの方向）に挿入する。このとき、凹部１１が上になるようにする。このようにして、接続管６を奥まで挿入すると、接続管６は破線で示す位置に達する。同時に、ロック子８の凸部８１が接続管６の凹部１１と嵌合する。なお、ロック子８は、回動軸８ａを有さず、単にバネ９で上方向に付勢されるものであってもよい。
【００３１】
ついで、挿入した接続管６を矢印Ｑの方向にわずかに引く。これにより、接続管６は実線で示す位置に達し、接続管６の凹部１１とロック子８の凸部８１の後面同士が当接し、それらに形成された凹部１１のコの字型の凸凹と凸部８１の逆コの字型の凹凸が相互に噛合し、ロック子８が空間１０内で上方向（矢印Ｚの方向）に回動するのが制止される。したがって、清掃中の衝撃により、接続管６に抜け方向（矢印Ｑの方向）に強い荷重が生じてもロック子８の凸部８１が、凹部１１から外れることはなく、接続管６と接続口７の連結が確実に保持される。
【００３２】
接続管６を接続口７から引き抜くときは、接続管６を矢印Ｐの方向へ押し込んで凹部１１と凸部８１の当接面の噛合を解除した後、ロック子８の操作部８２を矢印Ｚの方向へ押し上げて凹部１１と凸部８１の嵌合を解除する。そして、この状態で接続管６を矢印Ｑの方向へ引き抜く。
【００３３】
図４は、本実施形態の変形例を示している。接続管６の凹部１１とロック子８の凸部８１の当接面を、垂直方向から後方（矢印Ｐの方向）に傾斜角度θだけ傾いた凹の傾斜面１１ｃ及び凸の傾斜面８１ｄにてそれぞれ形成している。そして、これらの傾斜面１１ｃ，８１ｄ同士の接触によって係合させ、ロック子８が空間１０内で上方向（矢印Ｚの方向）に回動するのが制止されるようにしている。したがって、清掃中の衝撃により、接続管６に抜け方向（矢印Ｑの方向）に強い荷重が生じてもロック子８の凸部８１が、凹部１１から外れることはなく、接続管６と接続口７の連結が確実に保持される。
【００３４】
本発明の第３の実施形態について図面を参照して説明する。図５は、本発明の第３の実施形態に係る電気掃除機の接続管の接続構造を示す要部の断面図である。この図において、図１の上記第１の実施形態と同じ名称の部材には同一の符号を附し、その詳細な説明を省略する。
【００３５】
ロック子８は、回動軸８ａも含めて接続管６の空間１０に収められている。ロック子８を軸支する空間１０の内面には、ロック子８の回動軸８ａが接続管６の軸方向にスライド可能なスライド溝１２が設けられている。ロック子８の凸部８１と凹部１１の嵌合により、回動軸８ａはスライド溝１２に沿ってスライド可能となる。
【００３６】
ロック子８の凸部８１の斜面８１ａは、垂直面８１ｅを有して途中に段差８１ｅが形成され、凸部８１はこの段差８１ｅより前方の部分で凹部１１と嵌合している。この嵌合によって、凹部１１の後縁下端のエッジ部１１ｄが凸部８１の段差８１ｅと係合し、ロック子８は軸方向（矢印Ｐ及びＱの方向）の移動が制止される。また、空間１０の後面とロック子８の凸部８１の先端には、互いに当接して係合可能なＬ字型の段部１０ａ，８ｂが形成されている。
【００３７】
接続管６を接続口７へ装着する時の作業について説明する。まず、接続管６を接続口７とほぼ同軸となるようにまっすぐ（矢印Ｐの方向）に挿入する。このとき、ロック子８を目印として、接続管６の外面の空間１０側が上になるようにする。このようにして、接続管６を奥まで挿入すると、接続管６、空間１０、ロック子８等は破線で示す位置に達する。同時に、ロック子８の凸部８１が接続口７の凹部１１と嵌合する。なお、ロック子８は、回動軸８ａを有さず、単にバネ９で上方向に付勢されるものであってもよい。
【００３８】
ついで、挿入した接続管６を矢印Ｑの方向にわずかに引く。これにより、接続管６はスライド溝１２と共に実線で示す位置に達し、ロック子８は初期位置を保ったまま回動軸８ａがスライド溝１２に沿ってスライドする。接続管６の空間１０の後面とロック子８の凸部８１の先端が当接し、それらに形成されたＬ字型の段部１１ｄ，８ｂ同士が係合し、ロック子８が空間１０内で下方向（矢印Ｙの方向）に回動するのが制止される。したがって、清掃中の衝撃により、接続管６に抜け方向（矢印Ｑの方向）に強い荷重が生じてもロック子８の凸部８１が、凹部１１から外れることはなく、接続管６と接続口７の連結が確実に保持される。
【００３９】
接続管６を接続口７から引き抜くときは、接続管６を矢印Ｐの方向へ押し込んで凹部１１と凸部８１の当接面の係合を解除した後、ロック子８の操作部８２を矢印Ｙの方向へ押し下げて凹部１１と凸部８１の嵌合を解除する。そして、この状態で接続管６を矢印Ｑの方向へ引き抜く。
【００４０】
本発明の第４の実施形態について図面を参照して説明する。図６は、本発明の第４の実施形態に係る電気掃除機の接続管の接続構造を示す要部の断面図である。この図において、図３の上記第２の実施形態と同じ名称の部材には同一の符号を附している。
【００４１】
この実施形態は、図５における接続管６の外面の空間１０と接続口７の内面の凹部１１の関係を逆にし、図６に示すように、接続口７の内面に空間１０を、接続管６の外面に凹部１１をそれぞれ形成したことを特徴としている。すなわち、筒状の接続口７の内面には、ロック子８が没入可能な空間１０が設け、接続管６の外面で、先端から所定の距離を隔てた部分に、凹部１１を形成している。この接続管６の凹部１１は、図示のごとく、接続口７の空間１０と対向している。
【００４２】
ロック子８は、空間１０の後部において、回動軸８ａを介して接続口７に対して回動自在に軸支されている。空間１０の上面には、ロック子８を下方向（図中矢印Ｙと反対方向）に付勢するコイルバネ等のバネ９が設けられている。空間１０の底面は開放されている。ロック子８を軸支する空間１０の内面には、ロック子８の回動軸８ａが接続口７の軸方向にスライド可能なスライド溝１２が設けられている。ロック子８の凸部８１と凹部１１の嵌合により、回動軸８ａはスライド溝１２に沿ってスライド可能となる。
【００４３】
ロック子８の凸部８１の前面は、段差８１ｇ有するように形成されている。この嵌合によって、ロック子８は軸方向（矢印Ｐ及びＱの方向）の移動が制止される。また、空間１０の前面には、凸部８１の先端部８１ｈが挿入して係合可能なＬ字型の空洞１０ｂが形成されている。空間１０の上面には、操作部８２が挿通される孔７ａが設けられている。したがって、ロック子８はバネ９に付勢されても、前方へ折れ曲がった操作部８２が接続口７に当接し、その凸部８１以外が空間１０の下方へ露出することがないようになっている。
【００４４】
接続管６を接続口７へ装着する時の作業について説明する。まず、接続管６を接続口７とほぼ同軸となるようにまっすぐ（矢印Ｐの方向）に挿入する。このとき、凹部１１が上になるようにする。このようにして、接続管６を奥まで挿入すると、接続管６は破線で示す位置に達する。同時に、ロック子８の凸部８１が接続管６の凹部１１と嵌合する。なお、ロック子８は、回動軸８ａを有さず、単にバネ９で上方向に付勢されるものであってもよい。
【００４５】
ついで、挿入した接続管６を矢印Ｑの方向にわずかに引く。これにより、接続管６は実線で示す位置に達し、回動軸８ａがスライド溝１２に沿ってスライドすることにより、ロック子８は移動する。そして、空間１０の空洞１０ｂにロック子８の凸部８１の先端部８１ｈが挿入されて係合し、ロック子８が空間１０内で上方向（矢印Ｚの方向）に回動するのが制止される。したがって、清掃中の衝撃により、接続管６に抜け方向（Ｑの方向）に強い荷重が生じてもロック子８の凸部８１が、凹部１１から外れることはなく、接続管６と接続口７の連結が確実に保持される。
【００４６】
接続管６を接続口７から引き抜くときは、接続管６を矢印Ｐの方向へ押し込んで空間１０と凸部８１の係合を解除した後、ロック子８の操作部８２を矢印Ｚの方向へ押し上げて凹部１１と凸部８１の嵌合を解除する。そして、この状態で接続管６を矢印Ｑの方向へ引き抜く。
【００４７】
【発明の効果】
以上説明したように本発明によると、吸気管の末端に設けられた接続管を本体の接続口に容易に着脱できるとともに、清掃中の衝撃により、接続管の抜け方向に強い荷重が生じても、接続管と接続口の連結が確実に保持され、接続管が不測の抜けるおそれがなくなる。
【図面の簡単な説明】
【図１】 本発明の第１の実施形態に係る電気掃除機の接続管の接続構造を示す要部の断面図である。
【図２】 その電気掃除機の接続管の接続構造の他の例を示す要部の断面図である。
【図３】 本発明の第２の実施形態に係る電気掃除機の接続管の接続構造を示す要部の断面図である。
【図４】 その電気掃除機の接続管の接続構造の他の例を示す要部の断面図である。
【図５】 本発明の第３の実施形態に係る電気掃除機の接続管の接続構造を示す要部の断面図である。
【図６】 本発明の第４の実施形態に係る電気掃除機の接続管の接続構造を示す要部の断面図である。
【図７】 従来の電気掃除機の一例を示す外観側面図である。
【図８】 その電気掃除機における接続管と接続口の接続構造を示す要部の断面図である。
【符号の説明】
１ 電気掃除機本体
６ 接続管
７ 接続口
８ ロック子
８１ 凸部
９ バネ
１０ 空間
１１ 凹部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection structure in which a connection pipe provided at one end of an intake pipe of a vacuum cleaner is detachably connected to a cleaner body.
[0002]
[Prior art]
FIG. 7 is an external side view showing an example of a conventional vacuum cleaner. Reference numeral 1 denotes a vacuum cleaner body in which an electric blower 2 is installed. A connection port 7 communicating with the intake side of the electric blower 2 is formed in a cylindrical shape on the front surface of the cleaner body 1. The exhaust side of the electric blower 2 communicates with the outside air. Reference numeral 3 denotes a suction port body for cleaning the floor surface, and one end of an intake pipe 4 that can be expanded and contracted with a certain length is rotatably mounted on the upper surface thereof. A handle 4 a is provided at a bent portion on the other end side of the intake pipe 4. A flexible hose 5 having a predetermined length is fixed to the other end of the intake pipe 4. Further, a connecting pipe 6 is attached to the downstream end of the hose 5 in order to removably connect the hose 5 to the connection port 7.
[0003]
FIG. 8 is a cross-sectional view of a main part showing a connection structure between the connection pipe 6 and the connection port 7 in this vacuum cleaner. A concave portion 11 is provided on the inner surface at the tip of the cylindrical connection port 7. A space 10 in which the lock element 8 can be immersed is formed on the outer surface of the connecting pipe 6 at a predetermined distance from the tip. A part of the space 10 of the connection pipe 6 faces the recess 11 of the connection port 7 as shown in the figure.
[0004]
The lock element 8 is pivotally supported with respect to the connecting pipe 6 via a rotation shaft 8 a in front of the space 10. A spring 9 such as a leaf spring is provided on the bottom surface of the space 10 to urge the lock 8 upward (in the direction opposite to the arrow Y in the figure). Since the upper surface of the space 10 has a wall surface 6a integrally formed with the outer surface of the connecting pipe 6, the lock element 8 biased by the spring 9 contacts the wall surface 6a and its rotation is restricted. The
[0005]
The distal end portion of the lock element 8 is a convex portion 81 that fits into the concave portion 11 of the connection port 7. The convex portion 81 has a bowl shape with the inclined surface 81a and the vertical surface 81b. An operating portion 82 that can be pressed from the outside is provided in a projecting manner at substantially the center of the length of the lock element 8. The wall 10a of the space 10 is provided with a hole through which the convex portion 81 and the operation portion 82 of the lock 8 are inserted. Therefore, when the lock 8 is biased by the spring 9, the convex portion 81 is fitted into the concave portion 11, and the operation portion 82 projects from the wall surface 6 a to the outside of the space 10.
[0006]
As a result, the locking element 8 is locked to the concave portion 11 of the connection port 7, so that the connection tube 6 does not detach from the connection port 7 even if a force in the direction of pulling out is applied to the connection tube 6. When the connection pipe 6 is removed from the connection port 7, the engagement between the lock 8 and the recess 11 is released by pushing down the operation portion 82 of the lock 8 against the urging force of the spring 9.
[0007]
[Problems to be solved by the invention]
However, since it is necessary to grasp the handle 4a and pull the cleaner body 1 around during cleaning, the lock element is applied when a strong pulling force is applied to the connecting pipe 6 by colliding with a step or the like while the cleaner body 1 is moving. 8 rotates downward (in the direction of arrow Y) against the urging force of the spring 9, and the convex portion 81 of the lock element 8 is disengaged from the concave portion 11, and the hose 5 together with the connecting pipe 6 is removed from the cleaner body 1. There was a risk of falling out.
[0008]
Therefore, an object of the present invention is to provide a connection structure for a connection pipe of a vacuum cleaner in which the connection pipe can be detached from the main body during cleaning while the connection pipe can be detached and attached by a simple operation. .
[0009]
[Means for Solving the Problems]
Connecting structure of the connecting tube of the vacuum cleaner of the present invention for achieving the above object, a connection mouth provided on the intake side of the intake path of the vacuum cleaner main body, and a recess provided in the inner surface of the connecting port an intake pipe which is mounted in front Symbol connecting port via the connecting pipe, the space provided on the outer surface of the connecting pipe, and Rokkuko which is rotatably supported in the space, the Rokkuko A protrusion formed on the tip; and a spring for urging the locking element to the outside of the space, and the protrusion of the locking element is urged by the urging force of the spring by inserting the connection pipe into the connection port. And a recess groove on the connection port, the slide shaft is provided with a slide groove on the inner surface of the space, and the rotation stop of the lock child is provided. Patent in that a mechanism to said space and the locking element To.
[0015]
Therefore, when the connection pipe is connected to the connection port of the vacuum cleaner main body, the rotation restraining mechanism of the lock element works, and the connection between the connection pipe and the connection port is maintained.
[0016]
In this case, the insertion of the connecting pipe is slightly pulled, and the rotation of the locking element is restrained by engaging the rear surface of the space and the tip of the locking element with each other's contact surface. Specifically, this can be realized by forming the abutting surface of the rear surface of the space and the tip of the lock element in an L-shaped cross section.
[0017]
Further, a connection mouth provided on the intake side of the intake path of the vacuum cleaner main body, and a space provided on the inner surface of the connection port, an intake pipe which is attached to the connection port via the connecting pipe, wherein a recess provided in the outer surface of the connecting pipe, and Rokkuko which is rotatably supported in the space, and a convex portion formed on the tip of the Rokkuko, pre Symbol Rokkuko outside of the space and a spring biasing, by inserting the connecting pipe to the connecting port, in the biasing force of the spring which is fitted to the recess of the connecting pipe and the convex portion of the Rokkuko, the Rokkuko The rotation shaft is provided with a slide groove on the inner surface of the space that is slidable in the axial direction of the connecting pipe, and a rotation stop mechanism for the lock element is provided in the space and the lock element.
[0018]
Therefore, when the connection pipe is connected to the connection port of the vacuum cleaner main body, the rotation restraining mechanism of the lock element works, and the connection between the connection pipe and the connection port is maintained.
[0019]
In this case, after inserting the connecting pipe, the lock element is prevented from rotating by pulling slightly to engage the front surface of the space and the front end of the lock element at the contact surfaces .
[0020]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a main part showing a connection structure of a connection pipe of a vacuum cleaner according to a first embodiment of the present invention. In this figure, members having the same names as those of the conventional examples of FIGS. 7 and 8 are denoted by the same reference numerals, and detailed description thereof is omitted.
[0021]
On the front surface of the concave portion 11, an inverted U-shaped unevenness is formed by an inclined surface 11 a and a vertical surface 11 b. On the front surface of the convex portion 81, a convex and concave portion having a U-shaped cross section is formed by the inclined surface 81c and the vertical surface 81b.
[0022]
An operation when the connecting pipe 6 is attached to the connecting port 7 will be described. First, an engagement mechanism for detachably engaging the connection pipe 6 and the connection port 7 will be described. The connecting pipe 6 is inserted straight (in the direction of arrow P) so as to be substantially coaxial with the connecting port 7. At this time, the lock element 8 is used as a mark so that the space 10 side on the outer surface of the connection pipe 6 is on the upper side. When the connecting pipe 6 is inserted all the way in this way, the connecting pipe 6, the space 10, the lock 8 and the like reach the positions indicated by the broken lines. At the same time, the convex portion 81 of the lock element 8 is fitted into the concave portion 11 of the connection port 7. The lock element 8 may not be provided with the rotating shaft 8a but may be simply urged upward by the spring 9.
[0023]
Next, a holding mechanism that holds the fitting (engagement) of the connection pipe 6 and the connection port 7 will be described. The connecting pipe 6 inserted into the connecting port 7 is slightly pulled in the direction of arrow Q. As a result, the connecting pipe 6 reaches the position indicated by the solid line, and the concave portions 11 of the connection port 7 and the front surfaces of the convex portions 81 of the locking element 8 come into contact with each other, and the inverted U-shaped irregularities of the concave portions 11 formed on them. And the U-shaped irregularities of the convex portion 81 mesh with each other, and the lock 8 is prevented from rotating downward (in the direction of arrow Y) in the space 10. Therefore, even if a strong load is generated in the connecting pipe 6 in the removal direction (in the direction of arrow Q) due to an impact during cleaning, the convex portion 81 of the lock element 8 does not come off from the concave portion 11, and the connecting pipe 6 and the connecting port The connection of 7 is securely held.
[0024]
When pulling out the connection pipe 6 from the connection port 7, the connection pipe 6 is pushed in the direction of arrow P to release the engagement of the contact surfaces of the concave portion 11 and the convex portion 81, and then the operation portion 82 of the lock 8 is moved to the arrow Y The fitting of the concave portion 11 and the convex portion 81 is released. In this state, the connecting pipe 6 is pulled out in the direction of the arrow Q.
[0025]
FIG. 2 shows a modification of the present embodiment. The contact surface between the concave portion 11 of the connection port 7 and the convex portion 81 of the lock 8 is formed into a concave inclined surface 11c and a convex inclined surface 81d inclined forward by an inclination angle θ from the vertical direction (in the direction of the arrow Q). Each formed. The inclined surfaces 11c and 81d are engaged with each other so that the lock 8 is prevented from rotating downward (in the direction of arrow Y) in the space 10. Therefore, even if a strong load is generated in the connecting pipe 6 in the removal direction (in the direction of arrow Q) due to an impact during cleaning, the convex portion 81 of the lock element 8 does not come off from the concave portion 11, and the connecting pipe 6 and the connecting port The connection of 7 is securely held.
[0026]
A second embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a cross-sectional view of the main part showing the connection structure of the connection pipe of the vacuum cleaner according to the second embodiment of the present invention. In this figure, members having the same names as those in the first embodiment in FIG.
[0027]
In this embodiment, the relationship between the space 10 on the outer surface of the connecting pipe 6 and the recess 11 on the inner surface of the connecting port 7 in FIG. 1 is reversed, and the space 10 is connected to the inner surface of the connecting port 7 as shown in FIG. 6 is characterized in that recesses 11 are formed on the outer surface of each of 6. That is, a space 10 in which the lock 8 can be immersed is provided on the inner surface of the cylindrical connection port 7, and the recess 11 is formed on the outer surface of the connection pipe 6 at a predetermined distance from the tip. The concave portion 11 of the connection pipe 6 faces the space 10 of the connection port 7 as illustrated.
[0028]
The lock 8 is pivotally supported at the rear portion of the space 10 so as to be rotatable with respect to the connection port 7 via a rotation shaft 8a. A spring 9 such as a coil spring is provided on the upper surface of the space 10 to urge the lock 8 downward (in the direction opposite to the arrow Z in the figure). The bottom surface of the space 10 is open.
[0029]
The distal end portion of the lock element 8 is a convex portion 81 that fits into the concave portion 11 of the connecting pipe 6. The front surface of the convex portion 81 is an inclined surface 81a that is higher in the front and lower in the rear. On the rear surface of the convex portion 81, an uneven surface having an inverted U-shaped cross section is formed by an inclined surface 81c and a vertical surface 81b. On the front surface of the recess 11, a U-shaped unevenness is formed by the slope 11 a and the vertical surface 11 b. An operation portion 82 that can be pressed from the outside is provided slightly behind the convex portion 81 of the lock element 8. A hole 7a through which the operation unit 82 is inserted is provided on the upper surface of the space 10. Therefore, even if the lock 8 is urged by the spring 9, the operation portion 82 bent forward is brought into contact with the connection port 7, and the portions other than the convex portion 81 are not exposed below the space 10. Yes.
[0030]
An operation when the connecting pipe 6 is attached to the connecting port 7 will be described. First, the connecting pipe 6 is inserted straight (in the direction of arrow P) so as to be substantially coaxial with the connecting port 7. At this time, the concave portion 11 is placed on the top. When the connecting pipe 6 is inserted all the way in this way, the connecting pipe 6 reaches the position indicated by the broken line. At the same time, the convex portion 81 of the lock element 8 is engaged with the concave portion 11 of the connecting pipe 6. The lock element 8 may not be provided with the rotating shaft 8a but may be simply urged upward by the spring 9.
[0031]
Then, the inserted connecting pipe 6 is slightly pulled in the direction of arrow Q. As a result, the connecting pipe 6 reaches the position indicated by the solid line, the concave portion 11 of the connecting pipe 6 and the rear surfaces of the convex portions 81 of the locking element 8 come into contact with each other, and the U-shaped concave and convex portions of the concave portion 11 formed on them. The inverted U-shaped projections and depressions of the projections 81 mesh with each other, and the locking element 8 is prevented from rotating upward (in the direction of arrow Z) in the space 10. Therefore, even if a strong load is generated in the connecting pipe 6 in the removal direction (in the direction of arrow Q) due to an impact during cleaning, the convex portion 81 of the lock element 8 does not come off from the concave portion 11, and the connecting pipe 6 and the connecting port The connection of 7 is securely held.
[0032]
When pulling out the connection pipe 6 from the connection port 7, the connection pipe 6 is pushed in the direction of arrow P to release the engagement between the contact surfaces of the concave portion 11 and the convex portion 81, and then the operation portion 82 of the lock 8 is moved to the arrow Z. Is pushed up to release the fitting between the concave portion 11 and the convex portion 81. In this state, the connecting pipe 6 is pulled out in the direction of the arrow Q.
[0033]
FIG. 4 shows a modification of the present embodiment. The abutment surface of the concave portion 11 of the connecting pipe 6 and the convex portion 81 of the lock element 8 is formed by a concave inclined surface 11c and a convex inclined surface 81d inclined at an inclination angle θ backward from the vertical direction (in the direction of arrow P) Each is formed. Then, these inclined surfaces 11c and 81d are engaged with each other so that the lock element 8 is prevented from rotating upward (in the direction of arrow Z) in the space 10. Therefore, even if a strong load is generated in the connecting pipe 6 in the removal direction (in the direction of arrow Q) due to an impact during cleaning, the convex portion 81 of the lock element 8 does not come off from the concave portion 11, and the connecting pipe 6 and the connecting port The connection of 7 is securely held.
[0034]
A third embodiment of the present invention will be described with reference to the drawings. FIG. 5: is sectional drawing of the principal part which shows the connection structure of the connection pipe of the vacuum cleaner which concerns on the 3rd Embodiment of this invention. In this figure, members having the same names as those of the first embodiment in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.
[0035]
The lock element 8 is accommodated in the space 10 of the connecting pipe 6 including the rotating shaft 8a. A slide groove 12 is provided on the inner surface of the space 10 that pivotally supports the lock element 8 so that the rotation shaft 8 a of the lock element 8 can slide in the axial direction of the connection pipe 6. By fitting the convex portion 81 and the concave portion 11 of the lock element 8, the rotation shaft 8 a can slide along the slide groove 12.
[0036]
The slope 81a of the convex portion 81 of the lock element 8 has a vertical surface 81e, and a step 81e is formed in the middle. The convex portion 81 is fitted to the concave portion 11 at a portion in front of the step 81e. By this fitting, the edge portion 11d at the lower end of the rear edge of the concave portion 11 is engaged with the step 81e of the convex portion 81, and the locking element 8 is prevented from moving in the axial direction (directions of arrows P and Q). In addition, L-shaped step portions 10 a and 8 b that can be engaged with each other are formed on the rear surface of the space 10 and the tip of the convex portion 81 of the lock element 8.
[0037]
An operation when the connecting pipe 6 is attached to the connecting port 7 will be described. First, the connecting pipe 6 is inserted straight (in the direction of arrow P) so as to be substantially coaxial with the connecting port 7. At this time, the lock element 8 is used as a mark so that the space 10 side on the outer surface of the connection pipe 6 is on the upper side. When the connecting pipe 6 is inserted all the way in this way, the connecting pipe 6, the space 10, the lock 8 and the like reach the positions indicated by the broken lines. At the same time, the convex portion 81 of the lock element 8 is fitted into the concave portion 11 of the connection port 7. The lock element 8 may not be provided with the rotating shaft 8a but may be simply urged upward by the spring 9.
[0038]
Then, the inserted connecting pipe 6 is slightly pulled in the direction of arrow Q. As a result, the connecting pipe 6 reaches the position indicated by the solid line together with the slide groove 12, and the rotation shaft 8 a slides along the slide groove 12 while maintaining the initial position of the lock element 8. The rear surface of the space 10 of the connecting pipe 6 and the tip of the convex portion 81 of the locking element 8 come into contact with each other, and the L-shaped step portions 11 d and 8 b formed on them engage with each other. Rotation in the downward direction (in the direction of arrow Y) is prevented. Therefore, even if a strong load is generated in the connecting pipe 6 in the removal direction (in the direction of arrow Q) due to an impact during cleaning, the convex portion 81 of the lock element 8 does not come off from the concave portion 11, and the connecting pipe 6 and the connecting port The connection of 7 is securely held.
[0039]
When pulling out the connection pipe 6 from the connection port 7, the connection pipe 6 is pushed in the direction of arrow P to release the engagement between the contact surfaces of the concave portion 11 and the convex portion 81, and then the operation portion 82 of the lock 8 is moved to the arrow. Pushing in the direction of Y releases the fitting between the concave portion 11 and the convex portion 81. In this state, the connecting pipe 6 is pulled out in the direction of the arrow Q.
[0040]
A fourth embodiment of the present invention will be described with reference to the drawings. FIG. 6: is sectional drawing of the principal part which shows the connection structure of the connection pipe of the vacuum cleaner which concerns on the 4th Embodiment of this invention. In this figure, members having the same names as those in the second embodiment in FIG.
[0041]
In this embodiment, the relationship between the space 10 on the outer surface of the connection pipe 6 and the recess 11 on the inner surface of the connection port 7 in FIG. 5 is reversed, and the space 10 is connected to the inner surface of the connection port 7 as shown in FIG. 6 is characterized in that recesses 11 are formed on the outer surface of each of 6. That is, a space 10 in which the lock 8 can be inserted is provided on the inner surface of the cylindrical connection port 7, and a recess 11 is formed on the outer surface of the connection pipe 6 at a predetermined distance from the tip. . The concave portion 11 of the connection pipe 6 faces the space 10 of the connection port 7 as illustrated.
[0042]
The lock 8 is pivotally supported at the rear portion of the space 10 so as to be rotatable with respect to the connection port 7 via a rotation shaft 8a. A spring 9 such as a coil spring is provided on the upper surface of the space 10 to urge the lock 8 downward (in the direction opposite to the arrow Y in the figure). The bottom surface of the space 10 is open. A slide groove 12 is provided on the inner surface of the space 10 that pivotally supports the lock element 8 so that the rotation shaft 8 a of the lock element 8 can slide in the axial direction of the connection port 7. By fitting the convex portion 81 and the concave portion 11 of the lock element 8, the rotation shaft 8 a can slide along the slide groove 12.
[0043]
The front surface of the convex portion 81 of the lock element 8 is formed to have a step 81g. By this fitting, the movement of the lock element 8 in the axial direction (directions of arrows P and Q) is restricted. In addition, an L-shaped cavity 10b is formed on the front surface of the space 10 so that the tip 81h of the convex portion 81 can be inserted and engaged therewith. A hole 7a through which the operation unit 82 is inserted is provided on the upper surface of the space 10. Therefore, even if the lock 8 is urged by the spring 9, the operation portion 82 bent forward is brought into contact with the connection port 7, and the portions other than the convex portion 81 are not exposed below the space 10. Yes.
[0044]
An operation when the connecting pipe 6 is attached to the connecting port 7 will be described. First, the connecting pipe 6 is inserted straight (in the direction of arrow P) so as to be substantially coaxial with the connecting port 7. At this time, the concave portion 11 is placed on the top. When the connecting pipe 6 is inserted all the way in this way, the connecting pipe 6 reaches the position indicated by the broken line. At the same time, the convex portion 81 of the lock element 8 is engaged with the concave portion 11 of the connecting pipe 6. The lock element 8 may not be provided with the rotating shaft 8a but may be simply urged upward by the spring 9.
[0045]
Then, the inserted connecting pipe 6 is slightly pulled in the direction of arrow Q. As a result, the connecting pipe 6 reaches the position indicated by the solid line, and the lock 8 moves as the rotating shaft 8 a slides along the slide groove 12. Then, the tip 81 h of the convex portion 81 of the locking element 8 is inserted into and engaged with the cavity 10 b of the space 10, and the locking element 8 is prevented from rotating upward (in the direction of arrow Z) in the space 10. Is done. Therefore, even if a strong load is generated in the connecting pipe 6 in the removal direction (Q direction) due to an impact during cleaning, the convex portion 81 of the lock element 8 is not detached from the concave portion 11, and the connecting pipe 6 and the connecting port 7 are not removed. Is securely held.
[0046]
When pulling out the connection pipe 6 from the connection port 7, the connection pipe 6 is pushed in the direction of the arrow P to release the engagement between the space 10 and the convex portion 81, and then the operation portion 82 of the lock 8 is moved in the direction of the arrow Z. Push up to release the fitting between the concave portion 11 and the convex portion 81. In this state, the connecting pipe 6 is pulled out in the direction of the arrow Q.
[0047]
【The invention's effect】
As described above, according to the present invention, the connection pipe provided at the end of the intake pipe can be easily attached to and detached from the connection port of the main body, and even if a strong load is generated in the disconnection direction of the connection pipe due to an impact during cleaning. The connection between the connection pipe and the connection port is securely held, and there is no possibility that the connection pipe will come off unexpectedly.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main part showing a connection structure of a connection pipe of a vacuum cleaner according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view of a main part showing another example of a connection structure of a connection pipe of the electric vacuum cleaner.
FIG. 3 is a cross-sectional view of a main part showing a connection structure of a connection pipe of a vacuum cleaner according to a second embodiment of the present invention.
FIG. 4 is a cross-sectional view of a main part showing another example of the connection structure of the connection pipe of the electric vacuum cleaner.
FIG. 5 is a cross-sectional view of a main part showing a connection structure of a connection pipe of a vacuum cleaner according to a third embodiment of the present invention.
FIG. 6 is a cross-sectional view of a main part showing a connection structure of a connection pipe of a vacuum cleaner according to a fourth embodiment of the present invention.
FIG. 7 is an external side view showing an example of a conventional vacuum cleaner.
FIG. 8 is a cross-sectional view of a main part showing a connection structure between a connection pipe and a connection port in the vacuum cleaner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 6 Connection pipe 7 Connection port 8 Locking element 81 Convex part 9 Spring 10 Space 11 Concave part

Claims (5)

電気掃除機本体の吸気経路の吸気側に設けられた接続口と、前記接続口の内面に設けられた凹部と、接続管を介して前記接続口に装着される吸気管と、前記接続管の外面に設けられた空間と、前記空間内に回動可能に軸支されたロック子と、前記ロック子の先端に形成された凸部と、前記ロック子を前記空間の外側へ付勢するバネとを備え、前記接続管を前記接続口に挿入することにより、前記バネの付勢力によって前記ロック子の凸部と前記接続口の凹部を嵌合させるものにおいて、
前記ロック子の回動軸が前記接続管の軸方向にスライド可能なスライド溝を前記空間の内面に設けるとともに、前記ロック子の回動制止機構を前記空間及び前記ロック子に設けたことを特徴とする電気掃除機の接続管の接続構造。A connection mouth provided on the intake side of the intake path of the vacuum cleaner main body, and a recess provided in the inner surface of the connecting port, the intake pipe via the connection tube is attached to said connection opening, said connection tube a space provided on the outer surface of the Rokkuko which is rotatably supported in the space, and a convex portion formed on the tip of the Rokkuko, urging the previous SL Rokkuko outside of the space and a spring which, by inserting the connecting pipe to the connecting port, in which fitting the recess of the connection port and the projecting portion of the Rokkuko by the biasing force of the spring,
A slide groove is provided on the inner surface of the space in which the rotation shaft of the lock element is slidable in the axial direction of the connecting pipe, and a rotation stop mechanism for the lock element is provided in the space and the lock element. Connection structure of the connection pipe of the vacuum cleaner. 前記回動制止機構は、前記接続管を挿入後、わずかに引くことにより、前記空間の後面と前記ロック子の先端を互いの当接面で係合させるものであることを特徴とする請求項１に記載の電気掃除機の接続管の接続構造。The rotation stop feature claim wherein after insertion of the connection tube, by slightly pulling, characterized in that the front end surface and the Rokkuko after said space is intended to engage in the abutment surface of another The connection structure of the connection pipe of the vacuum cleaner as described in 1 . 前記空間の後面と前記ロック子の先端の当接面を断面Ｌ字型に形成したことを特徴とする請求項２に記載の電気掃除機の接続管の接続構造。The connection structure of the connecting pipe of the vacuum cleaner according to claim 2 , wherein a contact surface between a rear surface of the space and a tip of the lock element is formed in an L-shaped cross section. 電気掃除機本体の吸気経路の吸気側に設けられた接続口と、前記接続口の内面に設けられた空間と、接続管を介して前記接続口に装着される吸気管と、前記接続管の外面に設けられた凹部と、前記空間内に回動可能に軸支されたロック子と、前記ロック子の先端に形成された凸部と、前記ロック子を前記空間の外側へ付勢するバネとを備え、前記接続管を前記接続口に挿入することにより、前記バネの付勢力によって前記ロック子の凸部と前記接続管の凹部を嵌合させるものにおいて、
前記ロック子の回動軸が前記接続管の軸方向にスライド可能なスライド溝を前記空間の内面に設けるとともに、前記ロック子の回動制止機構を前記空間及び前記ロック子に設けたことを特徴とする電気掃除機の接続管の接続構造。A connection mouth provided on the intake side of the intake path of the vacuum cleaner main body, and a space provided on the inner surface of the connecting port, the intake pipe via the connection tube is attached to said connection opening, said connection tube a recess provided in the outer surface of the Rokkuko which is rotatably supported in the space, and a convex portion formed on the tip of the Rokkuko, urging the previous SL Rokkuko outside of the space and a spring which, by inserting the connecting pipe to the connecting port, in the biasing force of the spring which is fitted to the recess of the connecting pipe and the convex portion of the Rokkuko,
A slide groove is provided on the inner surface of the space in which the rotation shaft of the lock element is slidable in the axial direction of the connecting pipe, and a rotation stop mechanism for the lock element is provided in the space and the lock element. Connection structure of the connection pipe of the vacuum cleaner. 前記回動制止機構は、前記接続管を挿入後、わずかに引くことにより、前記空間の前面と前記ロック子の先端を互いの当接面で係合させるものであることを特徴とする請求項４に記載の電気掃除機の接続管の接続構造。The rotation stop mechanism is configured to engage the front surface of the space and the tip of the lock element with each other by a slight pulling after inserting the connecting pipe. The connection structure of the connection pipe of the vacuum cleaner as described in 4 .
JP2001319084A 2001-10-17 2001-10-17 Connection structure of connecting pipe of vacuum cleaner Expired - Fee Related JP3805229B2 (en)

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JP5278855B2 (en) * 2008-09-01 2013-09-04 株式会社やまびこ Pipe connection structure
GB2525225B (en) * 2014-04-16 2016-09-14 Dyson Technology Ltd Cleaning implement for a vacuum cleaner and cleaning apparatus
GB2525224B (en) * 2014-04-16 2018-12-26 Dyson Technology Ltd Cleaning apparatus
GB2569820B (en) * 2017-12-30 2020-07-08 Dyson Technology Ltd A cleaning appliance
DE102020101318A1 (en) * 2020-01-21 2021-07-22 Miele & Cie. Kg Cleaning system and release mechanism

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