JP2008200480A - Suction device for vacuum cleaner - Google Patents

Suction device for vacuum cleaner Download PDF

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Publication number
JP2008200480A
JP2008200480A JP2007320255A JP2007320255A JP2008200480A JP 2008200480 A JP2008200480 A JP 2008200480A JP 2007320255 A JP2007320255 A JP 2007320255A JP 2007320255 A JP2007320255 A JP 2007320255A JP 2008200480 A JP2008200480 A JP 2008200480A
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Japan
Prior art keywords
vacuum cleaner
main body
suction tool
bend
air
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JP2007320255A
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Japanese (ja)
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JP5172309B2 (en
Inventor
Yoshiaki Matsumoto
良昭 松本
Kazuo Saito
和雄 斉藤
Sadao Fukushima
定男 福島
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Priority to JP2007320255A priority Critical patent/JP5172309B2/en
Priority to CN2008100085080A priority patent/CN101229035B/en
Priority to KR1020080007365A priority patent/KR20080070546A/en
Publication of JP2008200480A publication Critical patent/JP2008200480A/en
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Publication of JP5172309B2 publication Critical patent/JP5172309B2/en
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02Nozzles
    • A47L9/04Nozzles with driven brushes or agitators
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0081Means for exhaust-air diffusion; Means for sound or vibration damping

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that a suction device for vacuum cleaners is apt to generate suction noise in a state where an air and dust passage is bent. <P>SOLUTION: A bend 12 of the suction device 10 of the vacuum cleaner has a connection tube 18 turnably retained by a turning receiving part 21 formed integrally with a body 11. When the connection tube 18 is turned under a standing state, a turbulent flow pocket 26 is formed at the lower part of the end of the connection tube 18, so that a turbulent flow indicated by an arrow 27 is apt to occur at the pocket to easily cause the suction noise. For preventing it, ribs 30 are provided at the lower part of the end inner face of the connection tube 18. The plurality of parallel ribs 30 extends in an air and dust passing direction 29. The ribs 30 can suppress the generation of the turbulent flow and the suction noise is reduced so as to scarcely generate the suction noise irrelevant to the turning position of the bend 12. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、電気掃除機用吸込具に関し、特に、電気掃除機に装着されて使用され、被清掃面上の塵挨を吸い込んで電気掃除機側へ送るための吸込具に関する。   The present invention relates to a vacuum cleaner suction tool, and more particularly to a suction tool that is used by being mounted on a vacuum cleaner and sucks dust on a surface to be cleaned and sends it to the vacuum cleaner side.

電気掃除機は、一般に、電動送風機を備えた本体と、本体に後端が取り付けられ、その先端には操作部が備えられた吸込ホースと、吸込ホースの操作部に後端が接続され、その先端側には吸込具が接続された吸込パイプとを有している。ユーザは、操作部に設けられたグリップを握り、吸込具を被清掃面に沿って前後に移動させることにより、清掃を行う。   A vacuum cleaner generally has a main body provided with an electric blower, a rear end attached to the main body, a suction hose provided with an operation part at the front end, and a rear end connected to the operation part of the suction hose. The tip end side has a suction pipe to which a suction tool is connected. The user performs cleaning by grasping a grip provided in the operation unit and moving the suction tool back and forth along the surface to be cleaned.

従来の吸込具は、前後に移動させる際に効率良く被清掃面の塵挨を吸い込めるよう、吸込パイプに対していわゆるT字状に接続される形状をしている。すなわち、清掃方向(移動方向)に対して直交方向(幅方向)に長手の吸込具本体と、吸込具本体の幅方向中央から後方へ突出したベンドとを有しており、吸込具本体に対してベンドが上下方向に回動することにより、吸込具が被清掃面から浮き上がらず、良好な吸引が行えるようになっている。   The conventional suction tool has a shape that is connected to the suction pipe in a so-called T shape so that dust on the surface to be cleaned can be efficiently sucked when moving forward and backward. That is, it has a suction tool body that is long in the direction perpendicular to the cleaning direction (movement direction) (width direction) and a bend that protrudes backward from the center of the suction tool body in the width direction. By rotating the bend in the vertical direction, the suction tool does not lift from the surface to be cleaned, and good suction can be performed.

また、吸込具の内部には、回転ブラシが収容されており、回転ブラシが回転することにより、被清掃面の塵挨を掻きあげる作用等をし、清掃効率の向上が図られている(たとえば特許文献1参照)。
特開平6−7271号公報
Further, a rotary brush is accommodated inside the suction tool, and by rotating the rotary brush, it acts to scrape dust on the surface to be cleaned, and the cleaning efficiency is improved (for example, Patent Document 1).
JP-A-6-7271

従来の電気掃除機用吸込具は、吸込具本体に対してベンドは上下方向に回動するため、吸込具本体に吸い込まれた空気および塵挨は、吸込具本体からベンドへと流れる際、その流路がほぼ真っ直ぐである場合もあれば、屈曲する場合もある。なぜなら、ベンドが略水平方向に突出するように寝かされた状態では、流路はほぼ真っ直ぐに延びるが、ベンドが立てられた状態では、流路は屈曲した状態となるからである。   In the conventional vacuum cleaner suction tool, the bend rotates in the vertical direction with respect to the suction tool body, so when the air and dust sucked into the suction tool body flow from the suction tool body to the bend, The flow path may be almost straight or it may be bent. This is because when the bend is laid down so as to protrude in a substantially horizontal direction, the flow path extends almost straight, but when the bend is erected, the flow path is bent.

ところで、電気掃除機用吸込具において、空気および塵挨の流路が屈曲した状態においては、流路の内径は、場所により広狭差が生じる。内径の広狭差は通過する空気の圧力差を生じるため、吸込音(空気の通過音)が発生し易いという課題が判明した。   By the way, in the vacuum cleaner suction tool, when the air and dust flow paths are bent, the inner diameter of the flow path varies depending on the location. Since the difference in the inner diameters causes a pressure difference in the passing air, it has been found that a suction sound (air passing sound) is likely to occur.

この発明は、かかる課題を解決するためになされたもので、吸込騒音(空気流により生じる音)の発生を抑えた電気掃除機用吸込具を提供することを主たる目的とする。   This invention was made in order to solve this subject, and makes it a main objective to provide the suction tool for vacuum cleaners which suppressed generation | occurrence | production of the suction noise (sound produced by an airflow).

この発明は、また、吸込具本体に対してベンドをどのような回動状態にしても、騒音が発生し難いように改良された電気掃除機用吸込具を提供することを他の目的とする。   Another object of the present invention is to provide a vacuum cleaner suction tool which is improved so that noise is less likely to occur no matter what the bend is rotated with respect to the suction tool body. .

請求項1の発明は、被清掃面に対向される吸込口を有する本体と、その本体に対して回動可能に突設され、前記吸込口から吸い込まれる空気および塵挨を電気掃除機方向へ通過させるための筒状のベンドとを有する電気掃除機用吸込具であって、前記ベンドは、前記本体に設けられた回動受け部と、前記回動受け部に一端が連結されて前記本体に対して上下方向に回動自在な接続筒とを含み、前記接続筒の筒状内面には、所定の位置に、前記空気および塵挨の通過方向に延びるリブが形成されていることを特徴とする、電気掃除機用吸込具である。   According to the first aspect of the present invention, there is provided a main body having a suction port opposed to the surface to be cleaned, and the air and dust sucked from the suction port in the direction of the vacuum cleaner. A vacuum cleaner suction tool having a cylindrical bend for passing through, wherein the bend is connected to a rotation receiving portion provided in the main body and one end of the rotation receiving portion connected to the rotation receiving portion. A connecting tube that is rotatable in the vertical direction with respect to the inner surface of the connecting tube, and a rib that extends in a passage direction of the air and dust is formed at a predetermined position on the inner surface of the connecting tube. It is a vacuum cleaner suction tool.

請求項2の発明は、前記ベンドの回動受け部は、略球面状の受け面を含み、前記接続筒の一端は、その外表面が前記受け面に内嵌合する嵌合面を含み、前記接続筒は前記受け面を中心に少なくとも上下に回動自在に設けられていて、前記接続筒の一端の下方内面に前記リブが形成されていることを特徴とする、請求項1記載の電気掃除機用吸込具である。   In the invention of claim 2, the rotation receiving portion of the bend includes a substantially spherical receiving surface, and one end of the connection tube includes a fitting surface whose outer surface is fitted inside the receiving surface, 2. The electricity according to claim 1, wherein the connection tube is provided so as to be rotatable at least up and down around the receiving surface, and the rib is formed on a lower inner surface of one end of the connection tube. It is a vacuum cleaner suction tool.

請求項3の発明は、前記リブは、平行に複数設けられていることを特徴とする、請求項1または請求項2に記載の電気掃除機用吸込具である。   A third aspect of the present invention is the vacuum cleaner suction tool according to the first or second aspect, wherein a plurality of the ribs are provided in parallel.

請求項4の発明は、前記所定の位置は、前記本体に対して前記ベンドを回動させ、空気および塵挨の通過流路を屈曲させたときに、屈曲外方側の位置を含むことを特徴とする、請求項1記載の電気掃除機用吸込具である。   According to a fourth aspect of the present invention, the predetermined position includes a position on a bent outward side when the bend is rotated with respect to the main body and a passage passage for air and dust is bent. The vacuum cleaner suction tool according to claim 1, wherein the suction tool is a vacuum cleaner.

請求項5の発明は、前記接続管の他端側内面に、前記空気および塵埃の通過方向に延びる第2のリブが形成されていることを特徴とする、請求項1記載の電気掃除機用吸込具である。   The invention according to claim 5 is characterized in that a second rib extending in the air and dust passage direction is formed on the inner surface of the other end side of the connection pipe. It is a suction tool.

請求項6の発明は、前記第2のリブは、前記接続管の他端側内面から一端側に向かって略全周に形成されていることを特徴とする、請求項5記載の電気掃除機用吸込具である。   The invention according to claim 6 is the vacuum cleaner according to claim 5, wherein the second rib is formed on the substantially entire circumference from the inner surface on the other end side to the one end side of the connecting pipe. It is a suction tool.

請求項7の発明は、前記回動受け部は、前記本体に対して本体の幅方向に回動自在に形成されていることを特徴とする、請求項1記載の電気掃除機用吸込具である。   The invention according to claim 7 is the vacuum cleaner suction tool according to claim 1, wherein the rotation receiving portion is formed to be rotatable in the width direction of the main body with respect to the main body. is there.

請求項8の発明は、被清掃面に対向される吸込口を有する本体と、その本体に対して回動可能に突設され、前記吸込口から吸い込まれる空気および塵挨を電気掃除機方向へ通過させるための筒状のベンドとを有する電気掃除機用吸込具であって、前記ベンドは、前記本体に設けられた回動受け部と、前記回動受け部に一端が枢支されて前記本体に対して上下方向に回動自在な回動筒と、前記回動筒に一端が枢支されて前記本体に対して左右方向に回動自在な接続筒とを含み、前記回動筒の筒状内面には、所定の位置に、前記空気および塵挨の通過方向に延びるリブが形成されていることを特徴とする、電気掃除機用吸込具である。   The invention according to claim 8 is a main body having a suction port opposed to the surface to be cleaned, and is rotatably provided to the main body so that air and dust sucked from the suction port are directed toward the vacuum cleaner. A vacuum cleaner suction tool having a cylindrical bend for passing therethrough, wherein the bend is pivotally supported at one end of the pivot receiving portion provided on the main body and the pivot receiving portion. A rotating cylinder that is rotatable in the vertical direction with respect to the main body, and a connecting cylinder that is pivotally supported at one end on the rotating cylinder and is rotatable in the horizontal direction with respect to the main body. The vacuum cleaner suction tool is characterized in that a rib extending in a passing direction of the air and dust is formed at a predetermined position on the cylindrical inner surface.

請求項9の発明は、前記ベンドの回動受け部は、略円弧状の受け面を含み、前記接続筒の一端は、その外表面が前記受け面に内嵌合する嵌合面を含み、前記接続筒は前記受け面を中心に少なくとも上下に回動自在に設けられていて、前記接続筒の一端の下方内面に前記リブが形成されていることを特徴とする、請求項8記載の電気掃除機用吸込具である。   In the invention of claim 9, the rotation receiving portion of the bend includes a substantially arc-shaped receiving surface, and one end of the connection tube includes a fitting surface whose outer surface is fitted inside the receiving surface, 9. The electricity according to claim 8, wherein the connection tube is provided so as to be rotatable at least up and down around the receiving surface, and the rib is formed on a lower inner surface of one end of the connection tube. It is a vacuum cleaner suction tool.

請求項10の発明は、前記リブは、平行に複数設けられていることを特徴とする、請求項8または請求項9に記載の電気掃除機用吸込具である。   The invention of claim 10 is the vacuum cleaner suction tool according to claim 8 or 9, wherein a plurality of the ribs are provided in parallel.

請求項11の発明は、前記所定の位置は、前記本体に対して前記ベンドを回動させ、空気および塵挨の通過流路を屈曲させたときに、屈曲外方側の位置を含むことを特徴とする、請求項8記載の電気掃除機用吸込具である。   According to an eleventh aspect of the present invention, the predetermined position includes a position on a bent outward side when the bend is rotated with respect to the main body and the passage flow path of air and dust is bent. The vacuum cleaner suction tool according to claim 8, wherein the vacuum cleaner suction tool is characterized.

請求項12の発明は、被清掃面に対向される吸込口を有する本体と、その本体に対して回動可能に突設され、前記吸込口から吸い込まれる空気および塵挨を電気掃除機方向へ通過させるための筒状のベンドとを有する電気掃除機用吸込具であって、前記ベンドは、前記本体に設けられた回動受け部と、前記回動受け部に一端が枢支されて前記本体に対して上下方向に回動自在な回動筒と、前記回動筒に一端が枢支されて前記本体に対して左右方向に回動自在な接続筒とを含み、前記接続筒の筒状内面には、所定の位置に、前記空気および塵挨の通過方向に延びるリブが形成されていることを特徴とする、電気掃除機用吸込具である。   The invention of claim 12 has a main body having a suction port opposed to the surface to be cleaned, and the air and dust sucked from the suction port in the direction of the vacuum cleaner. A vacuum cleaner suction tool having a cylindrical bend for passing therethrough, wherein the bend is pivotally supported at one end of the pivot receiving portion provided on the main body and the pivot receiving portion. A rotating cylinder that is rotatable in the vertical direction with respect to the main body, and a connecting cylinder that is pivotally supported at one end by the rotating cylinder and is rotatable in the horizontal direction with respect to the main body. The vacuum cleaner suction tool is characterized in that a rib extending in the air and dust passage direction is formed at a predetermined position on the inner surface.

請求項13の発明は、前記リブは、平行に複数設けられていることを特徴とする、請求項12に記載の電気掃除機用吸込具である。   The invention of claim 13 is the vacuum cleaner suction tool according to claim 12, wherein a plurality of the ribs are provided in parallel.

請求項14の発明は、被清掃面に対向される吸込口を有する本体と、その本体に対して回動可能に突設され、前記吸込口から吸い込まれる空気および塵挨を電気掃除機方向へ通過させるための筒状のベンドとを有する電気掃除機用吸込具であって、前記ベンドは、前記本体に設けられた回動受け部と、前記回動受け部に一端が枢支されて前記本体に対して上下方向に回動自在な回動筒と、前記回動筒に一端が枢支されて前記本体に対して左右方向に回動自在な接続筒とを含み、前記接続筒の他端側内面には、前記空気および塵挨の通過方向に延びるリブが形成されていることを特徴とする、電気掃除機用吸込具である。   The invention according to claim 14 is a main body having a suction port opposed to the surface to be cleaned, and is rotatably provided to the main body so that air and dust sucked from the suction port are directed toward the vacuum cleaner. A vacuum cleaner suction tool having a cylindrical bend for passing therethrough, wherein the bend is pivotally supported at one end of the pivot receiving portion provided on the main body and the pivot receiving portion. A rotating cylinder rotatable in the vertical direction with respect to the main body, and a connecting cylinder having one end pivotally supported by the rotating cylinder and rotatable in the horizontal direction with respect to the main body. The suction tool for a vacuum cleaner is characterized in that a rib extending in the air and dust passage direction is formed on the inner surface of the end side.

請求項15の発明は、前記リブは、前記接続管の他端側内面から一端側に向かって略全周に形成されていることを特徴とする、請求項14記載の電気掃除機用吸込具である。   The suction tool for a vacuum cleaner according to claim 14, wherein the rib is formed on the substantially entire circumference from the inner surface on the other end side to the one end side of the connection pipe. It is.

請求項1記載の発明によれば、ベンドを構成する接続筒の一端は、回動受け部に対して回動自在であり、このため、その内径が接続筒の他の部分に比べて広くされている。内径の広がった接続筒一端には、圧力差が生じて乱流が発生し易い。そこで、ベンドの筒状内面の所定位置に、空気および塵挨の通過方向に延びるリブが形成されている。リブは、空気の通過を案内して、スムーズに流す整流作用を生じる。従って、通過する空気に乱流が発生しにくく、乱流に基づく空気の通過音(吸込騒音)の発生が抑制される。   According to the first aspect of the present invention, one end of the connection cylinder constituting the bend is rotatable with respect to the rotation receiving portion, and therefore, its inner diameter is made wider than the other part of the connection cylinder. ing. A turbulent flow is likely to occur due to a pressure difference at one end of the connecting tube having an enlarged inner diameter. Therefore, ribs extending in the air and dust passage directions are formed at predetermined positions on the cylindrical inner surface of the bend. A rib guides passage of air and produces the rectification | straightening effect | action which flows smoothly. Therefore, it is difficult for turbulent flow to occur in the passing air, and generation of air passing sound (suction noise) based on the turbulent flow is suppressed.

請求項2記載の発明によれば、接続筒の一端は、嵌合面を含んでおり、接続筒が上方へ回動されたときに、接続筒の一端下方に空気が淀み易い空間(ポケット)が発生する。そこで、接続筒の一端下方の空間(ポケット)にリブを設けることによって、乱流の発生を予防し、空気の流れをスムーズにして騒音の発生を抑えることができる。   According to the second aspect of the present invention, one end of the connection tube includes a fitting surface, and when the connection tube is rotated upward, a space (pocket) in which air is easily trapped below one end of the connection tube. Will occur. Therefore, by providing a rib in the space (pocket) below one end of the connecting cylinder, it is possible to prevent the occurrence of turbulent flow, smooth the air flow, and suppress the generation of noise.

請求項3記載の発明によれば、リブは平行に複数設けられているので、リブによる整流効果が向上し、騒音の発生を最小限に抑えることができる。   According to the invention described in claim 3, since the plurality of ribs are provided in parallel, the rectification effect by the ribs is improved, and the generation of noise can be minimized.

請求項4記載の発明によれば、ベンドを回動させて、空気および塵挨の通過流路を屈曲させたときに、湾曲外方側の位置にリブが設けられている。つまり、乱流が生じ易い位置にリブが存在し、乱流を整えて騒音の発生を効率良く抑止することができる。   According to the fourth aspect of the present invention, the rib is provided at a position on the curved outer side when the bend is rotated to bend the passage passage for air and dust. That is, the rib is present at a position where turbulent flow is likely to occur, and the turbulent flow can be arranged to efficiently suppress the generation of noise.

請求項5記載の発明によれば、接続筒は、回動部分において流路面積が狭く形成され、その下流側(他端側)が流路面積が大きく形成される。従って、接続筒の他端側においても乱流が生じやすい。接続筒一端にリブを形成することにより、一端側に生じる乱流を抑制しているが、完全には乱流の発生を防止することは困難である。この接続筒一端側に生じる乱流が起因となって、接続筒の他端側に乱流が生じやすくなり、乱流に基づき空気の通過音が発生する。第2のリブは、接続筒の他端側の空気の流れを整流し、乱流の発生を抑制して、乱流に基づく空気の通過音を抑制する。   According to the fifth aspect of the present invention, the connecting cylinder is formed with a narrow channel area at the rotating portion, and the downstream side (the other end side) is formed with a large channel area. Accordingly, turbulent flow is likely to occur on the other end side of the connection tube. By forming a rib at one end of the connecting tube, turbulent flow generated at one end side is suppressed, but it is difficult to completely prevent the occurrence of turbulent flow. Due to the turbulent flow generated at one end of the connecting cylinder, turbulent flow is likely to be generated at the other end of the connecting cylinder, and an air passing sound is generated based on the turbulent flow. The second rib rectifies the flow of air on the other end side of the connecting cylinder, suppresses the generation of turbulent flow, and suppresses the passing sound of air based on the turbulent flow.

請求項6記載の発明によれば、第2のリブは、接続管の略全周に形成することにより、乱流の発生をより確実に抑制することができる。   According to the sixth aspect of the present invention, the second rib is formed on substantially the entire circumference of the connecting pipe, so that the generation of turbulent flow can be more reliably suppressed.

請求項7記載の発明によれば、回動受け部を本体に対して本体の幅方向に回動自在に形成しているので、接続管は、本体に対して上下左右方向に回動することができ、掃除作業性を向上できる。その際、接続管の屈曲により乱流が生じやすくなるが、リブにより乱流を抑制して、騒音の発生を抑制することができる。   According to the seventh aspect of the present invention, since the rotation receiving portion is formed so as to be rotatable in the width direction of the main body with respect to the main body, the connecting pipe rotates in the vertical and horizontal directions with respect to the main body. Can improve cleaning workability. At that time, turbulent flow is likely to occur due to the bending of the connecting pipe, but the generation of noise can be suppressed by suppressing the turbulent flow by the rib.

請求項8記載の発明によれば、ベンドを構成する接続筒の一端は、回動受け部に対して回動自在であり、このため、その内径が接続筒の他の部分に比べて広くされている。内径の広がった接続筒一端には、圧力差が生じて乱流が発生し易い。そこで、ベンドの筒状内面の所定位置に、空気および塵挨の通過方向に延びるリブが形成されている。リブは、空気の通過を案内して、スムーズに流す整流作用を生じる。従って、通過する空気に乱流が発生しにくく、乱流に基づく空気の通過音(吸込騒音)の発生が抑制される。   According to the eighth aspect of the present invention, one end of the connection tube constituting the bend is rotatable with respect to the rotation receiving portion, and therefore the inner diameter thereof is made wider than the other part of the connection tube. ing. A turbulent flow is likely to occur due to a pressure difference at one end of the connecting tube having an enlarged inner diameter. Therefore, ribs extending in the air and dust passage directions are formed at predetermined positions on the cylindrical inner surface of the bend. A rib guides passage of air and produces the rectification | straightening effect | action which flows smoothly. Therefore, it is difficult for turbulent flow to occur in the passing air, and generation of air passing sound (suction noise) based on the turbulent flow is suppressed.

請求項9記載の発明によれば、接続筒の一端は、嵌合面を含んでおり、接続筒が上方へ回動されたときに、接続筒の一端下方に空気が淀み易い空間(ポケット)が発生する。そこで、接続筒の一端下方の空間(ポケット)にリブを設けることによって、乱流の発生を予防し、空気の流れをスムーズにして騒音の発生を抑えることができる。   According to the ninth aspect of the present invention, one end of the connection tube includes a fitting surface, and when the connection tube is turned upward, a space (pocket) in which air can easily stagnate below one end of the connection tube. Will occur. Therefore, by providing a rib in the space (pocket) below one end of the connecting cylinder, it is possible to prevent the occurrence of turbulent flow, smooth the air flow, and suppress the generation of noise.

請求項10記載の発明によれば、リブは平行に複数設けられているので、リブによる整流効果が向上し、騒音の発生を最小限に抑えることができる。   According to the tenth aspect of the present invention, since a plurality of ribs are provided in parallel, the rectifying effect by the ribs is improved, and the generation of noise can be minimized.

請求項11記載の発明によれば、ベンドを回動させて、空気および塵挨の通過流路を屈曲させたときに、湾曲外方側の位置にリブが設けられている。つまり、乱流が生じ易い位置にリブが存在し、乱流を整えて騒音の発生を効率良く抑止することができる。   According to the eleventh aspect of the present invention, when the bend is rotated to bend the passage passage for air and dust, the rib is provided at a position on the curved outer side. That is, the rib is present at a position where turbulent flow is likely to occur, and the turbulent flow can be arranged to efficiently suppress the generation of noise.

請求項12記載の発明によれば、ベンドを構成する接続筒の一端は、回動受け部に対して回動自在であり、このため、接続筒を回動した際に、空気の流路が屈曲し、その屈曲部分において乱流が発生し易い。そこで、ベンドの筒状内面の所定位置に、空気および塵挨の通過方向に延びるリブが形成されている。リブは、空気の通過を案内して、スムーズに流す整流作用を生じる。従って、通過する空気に乱流が発生しにくく、乱流に基づく空気の通過音(吸込騒音)の発生が抑制される。   According to the twelfth aspect of the present invention, one end of the connection cylinder constituting the bend is freely rotatable with respect to the rotation receiving portion. Therefore, when the connection cylinder is rotated, an air flow path is provided. It is bent and turbulent flow is likely to occur at the bent portion. Therefore, ribs extending in the air and dust passage directions are formed at predetermined positions on the cylindrical inner surface of the bend. A rib guides passage of air and produces the rectification | straightening effect | action which flows smoothly. Therefore, it is difficult for turbulent flow to occur in the passing air, and generation of air passing sound (suction noise) based on the turbulent flow is suppressed.

請求項13記載の発明によれば、リブは平行に複数設けられているので、リブによる整流効果が向上し、騒音の発生を最小限に抑えることができる。   According to the thirteenth aspect of the present invention, since a plurality of ribs are provided in parallel, the rectifying effect by the ribs is improved, and the generation of noise can be minimized.

請求項14記載の発明によれば、接続筒は、回動部分において流路面積が狭く形成され、その下流側(他端側)が流路面積が大きく形成される。従って、接続筒の他端側において乱流が生じやすい。そこで、接続筒の他端側に、空気および塵埃の通過方向に延びるリブが形成されている。リブは、接続筒の他端側の空気の流れを整流し、乱流の発生を抑制して、乱流に基づく空気の通過音を抑制する。   According to the fourteenth aspect of the present invention, the connection cylinder is formed such that the flow passage area is narrow in the rotating portion, and the flow passage area is formed on the downstream side (the other end side). Therefore, turbulent flow is likely to occur on the other end side of the connecting cylinder. Therefore, a rib extending in the air and dust passing direction is formed on the other end side of the connecting cylinder. The rib rectifies the flow of air on the other end side of the connecting cylinder, suppresses the generation of turbulent flow, and suppresses air passing sound based on the turbulent flow.

請求項15記載の発明によれば、リブは、接続管の略全周に形成することにより、乱流の発生をより確実に抑制することができる。   According to the fifteenth aspect of the present invention, the ribs can be formed on substantially the entire circumference of the connecting pipe, whereby the generation of turbulent flow can be more reliably suppressed.

以上のように、この発明によれば、ベンド内の所定の位置に整流作用を行うリブを設けることにより、吸込具本体に対してベンドを自在に回動させても、ベンドの回動位置により空気の吸込に起因する騒音が生じることがなく、作業音が低減された電気掃除機用吸込具を提供することができる。   As described above, according to the present invention, even if the bend is freely rotated with respect to the suction tool body by providing a rib for performing a rectifying action at a predetermined position in the bend, depending on the rotation position of the bend. It is possible to provide a vacuum cleaner suction tool in which noise due to air suction does not occur and work noise is reduced.

以下には、図面を参照してこの発明の具体的な実施形態について説明する。   Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

図1は、この発明の一実施形態に係る電気掃除機用吸込具(以下「吸込具」という。)の中央縦断面図であり、ベンドを寝かせた状態の図である。また、図2は、同様に、吸込具の中央縦断面図であり、ベンドを立てた状態の図である。   FIG. 1 is a central longitudinal sectional view of a vacuum cleaner suction tool (hereinafter referred to as “suction tool”) according to an embodiment of the present invention, and shows a state in which a bend is laid down. FIG. 2 is also a central longitudinal cross-sectional view of the suction tool, and shows a state where the bend is raised.

図1および図2を参照して、吸込具10は、本体11およびベンド12を有する。本体11は、たとえば樹脂で成形され、紙面に直交方向に長手をした容器形状(箱形)をしている。そしてその前方側底面には紙面に直交方向に長手の吸込口13が形成されている。本体11内には、吸込口13に臨むように、やはり紙面に直交方向に長手の回転軸を有するブラシ14が備えられている。この実施形態では、ブラシ14は、図示しないモータにより回転され、清掃時に被清掃面の塵挨を掻きあげ、吸込口13から本体11内へ効率良く塵挨が吸い込まれるように作用する。   With reference to FIGS. 1 and 2, the suction tool 10 has a main body 11 and a bend 12. The main body 11 is formed of a resin, for example, and has a container shape (box shape) that is elongated in a direction orthogonal to the paper surface. A suction port 13 that is long in the direction orthogonal to the paper surface is formed on the bottom surface on the front side. In the main body 11, a brush 14 having a rotation axis that is long in the direction orthogonal to the paper surface is provided so as to face the suction port 13. In this embodiment, the brush 14 is rotated by a motor (not shown), scrapes dust on the surface to be cleaned during cleaning, and acts so that dust is efficiently sucked into the main body 11 from the suction port 13.

吸込口13から本体11の内部空間15内に吸い込まれた空気および塵挨は、本体11の幅方向(長手方向であり、紙面に直交方向)の略中央部に形成されて後方へ連通する入口16へ入り、入口16から後方へと流れる。入口16から入った空気および塵挨は、案内路17を通り、ベンド12を構成する接続筒18の筒内流路19を通って、電気掃除機側へと導かれる。その場合の空気および塵挨の流れが矢印20,29で図示されている。接続筒18は電気掃除機にホースを介して接続される延長管に着脱自在に接続される。   The air and dust sucked into the internal space 15 of the main body 11 from the suction port 13 are formed at a substantially central portion of the main body 11 in the width direction (longitudinal direction and perpendicular to the paper surface) and communicate with the rear. 16 enters and flows backward from the entrance 16. The air and dust that have entered from the inlet 16 pass through the guide path 17, pass through the in-cylinder flow path 19 of the connecting cylinder 18 that constitutes the bend 12, and are guided to the electric vacuum cleaner side. The flow of air and dust in that case is shown by arrows 20 and 29. The connection cylinder 18 is detachably connected to an extension pipe connected to the vacuum cleaner via a hose.

ところで、一般に、ベンド12は、本体11に設けられた回動受け部21と、この回動受け部21に一端としての先端22が回動自在に連結された上述の接続筒18とを含んでいる。このため、接続筒18は、その先端22を中心に、矢印23で示すように上下に回動自在になっている。回動受け部21は、この実施形態では、本体11に本体11の幅方向(左右方向)に回動自在に連結されていて、接続筒18の先端22を上下方向に回動自在に保持している。回転受け部21は、本体11の幅方向に回動自在に形成されているため、略円筒状を呈しており、接続筒22を上下方向に回動自在に支持する受け面24は略球面状に形成されている。一方、接続筒18の先端22には、受け面24に内嵌合してスムーズに摺接するための嵌合面25が形成されている。   By the way, the bend 12 generally includes a rotation receiving portion 21 provided in the main body 11 and the above-described connection cylinder 18 having a tip 22 as one end rotatably connected to the rotation receiving portion 21. Yes. For this reason, the connecting cylinder 18 is rotatable up and down as indicated by an arrow 23 around the tip 22 thereof. In this embodiment, the rotation receiving portion 21 is connected to the main body 11 so as to be rotatable in the width direction (left-right direction) of the main body 11, and holds the tip 22 of the connecting cylinder 18 so as to be rotatable in the vertical direction. ing. Since the rotation receiving portion 21 is formed so as to be rotatable in the width direction of the main body 11, the rotation receiving portion 21 has a substantially cylindrical shape, and the receiving surface 24 that supports the connection tube 22 to be rotatable in the vertical direction is substantially spherical. Is formed. On the other hand, a fitting surface 25 is formed at the distal end 22 of the connecting cylinder 18 so as to be fitted into the receiving surface 24 and smoothly come into sliding contact.

このように、略球面状の受け面24に案内されて、接続筒18は、その先端22を中心に上下に回動可能となっているため、接続筒18が略水平方向へ寝かされた回動状態(図1参照)と、接続筒18が上方へ屈曲するように立ち上げられた回動状態(図2参照)とでは、接続筒18の先端付近の筒内流路19aの流路断面積が変化する。   Thus, since the connection tube 18 is guided by the substantially spherical receiving surface 24 and can be turned up and down around the tip 22, the connection tube 18 is laid down in a substantially horizontal direction. In the rotation state (see FIG. 1) and the rotation state (see FIG. 2) raised so that the connection tube 18 bends upward, the flow path of the in-cylinder flow path 19a in the vicinity of the tip of the connection tube 18 The cross-sectional area changes.

より具体的には、図1に示すように、接続筒18を寝かせた状態では、入口16、案内路17、筒内流路の先端部19aおよび筒内流路19へと連通する流路の大きさ(太さ)は相対的に変化が少なく、矢印20で示すように、入口16から入った空気および塵挨は筒内流路19の後方側へとスムーズに流れる。   More specifically, as shown in FIG. 1, in the state where the connecting cylinder 18 is laid down, the inlet 16, the guide path 17, the tip 19 a of the in-cylinder channel, and the channel that communicates with the in-cylinder channel 19. The size (thickness) has a relatively small change, and as shown by an arrow 20, the air and dust that have entered from the inlet 16 smoothly flow to the rear side of the in-cylinder channel 19.

一方、図2に示すように、接続筒18を立てた状態に回動させると、案内路17と筒内流路の先端19aとにより形成される流路部分の大きさ(内径)が大きくなる。このため、下方に位置する受け面24および筒内流路の先端部19aにより形成される流路部分に、空気の乱流が生じ易いポケット(乱流ポケット)26が生まれる。このため、入口16から入り、案内路17から筒内流路19へと流れる空気および塵挨は、矢印29で示すように後方へと流通するのに加えて、乱流ポケット26で生じる圧力差のために、矢印27で示すような乱流が発生し易くなる。乱流27が発生すると、吸込音が大きくなり、ユーザに対して騒音の発生を認識させてしまう。   On the other hand, as shown in FIG. 2, when the connection cylinder 18 is turned upright, the size (inner diameter) of the flow path portion formed by the guide path 17 and the tip 19 a of the in-cylinder flow path increases. . For this reason, a pocket (turbulent flow pocket) 26 in which air turbulent flow is likely to occur is created in the flow path portion formed by the receiving surface 24 positioned below and the front end portion 19a of the in-cylinder flow path. For this reason, the air and dust that enter from the inlet 16 and flow from the guide channel 17 to the in-cylinder channel 19 circulate rearward as indicated by an arrow 29, and in addition, a pressure difference generated in the turbulent pocket 26. Therefore, a turbulent flow as shown by an arrow 27 is likely to occur. When the turbulent flow 27 occurs, the suction sound increases, and the user is made aware of the occurrence of noise.

この実施形態では、かかる騒音の発生を防止するために、リブ30が形成されている。この実施形態では、リブ30は、接続筒18の先端側の下方内面にほぼ全面にわたって複数平行に設けられていて、矢印20,29で示す空気および塵挨の通過方向に延びる薄板状の突条とされている。リブ30は、接続筒18の先端から接続管18の最も流路面積が小さくなる位置近傍まで形成されている。リブ30を設けると、図2に示すように、乱流ポケット26で発生し易い乱流27は、リブ30に案内されて接続筒18の筒内流路19を後方へと誘導されるので、乱流の発生が抑止され、その結果騒音が発生することを防止できる。   In this embodiment, ribs 30 are formed to prevent the generation of such noise. In this embodiment, a plurality of ribs 30 are provided on the lower inner surface on the distal end side of the connecting cylinder 18 in parallel over almost the entire surface, and are thin plate-like ridges extending in the air and dust passage directions indicated by arrows 20 and 29. It is said that. The rib 30 is formed from the tip of the connection tube 18 to the vicinity of the position where the flow path area of the connection pipe 18 is the smallest. When the rib 30 is provided, as shown in FIG. 2, the turbulent flow 27 that is likely to be generated in the turbulent pocket 26 is guided by the rib 30 and guided backward in the in-cylinder flow path 19 of the connecting cylinder 18, Generation of turbulent flow is suppressed, and as a result, generation of noise can be prevented.

図3は、接続筒18単体の斜視図であり、リブ30のより具体的な構成を表わす図である。   FIG. 3 is a perspective view of the connecting cylinder 18 alone, and shows a more specific configuration of the rib 30.

図3に示すように、リブ30は、接続筒18の先端側内面下方に設けられている。より具体的には、リブ30は、接続筒18の先端31から後方に向かって、接続筒18の長さ方向に延びていて、互いに平行に配列された複数の板状突状体からなっている。このため、接続筒18を立てた状態に回動させ、接続筒18の先端31下面寄りに生じる乱流ポケット26において、圧力差から生じ易い空気の乱れを整流することができ、乱流の発生を抑えて吸い込まれる空気および塵挨をスムーズに筒内流路19内を後方へと流すことができる。   As shown in FIG. 3, the rib 30 is provided below the inner surface on the distal end side of the connection tube 18. More specifically, the rib 30 includes a plurality of plate-like protrusions extending in the length direction of the connection tube 18 from the tip 31 of the connection tube 18 to the rear, and arranged in parallel to each other. Yes. For this reason, the connecting cylinder 18 is turned upright, and the turbulence pocket 26 generated near the lower surface of the tip 31 of the connecting cylinder 18 can rectify the air turbulence that is likely to occur due to the pressure difference. The air and dust sucked in can be smoothly flown backward in the in-cylinder channel 19.

図4および図5は、本発明の他の実施形態を示し、前述の実施形態のリブ30に加え、第2のリブ41を追加したものである。前述の実施形態と同一構成は、同一符号を付して説明を省略する。図4は断面図、図5は接続筒18を延長管の接続端側から見た平面図である。   4 and 5 show another embodiment of the present invention, in which a second rib 41 is added to the rib 30 of the above-described embodiment. The same configurations as those of the above-described embodiment are denoted by the same reference numerals and description thereof is omitted. 4 is a cross-sectional view, and FIG. 5 is a plan view of the connecting tube 18 as viewed from the connecting end side of the extension tube.

前述の実施形態で説明したように、図2に示すように、接続筒18を立てた状態に回動させると、案内路17と筒内流路の先端19aとにより形成される流路部分の大きさ(内径)が大きくなる。このため、下方に位置する受け面24および筒内流路の先端部19aにより形成される流路部分に、空気の乱流が生じ易いポケット(乱流ポケット)26が生まれる。このため、入口16から入り、案内路17から筒内流路19へと流れる空気および塵挨は、矢印29で示すように後方へと流通するのに加えて、乱流ポケット26で生じる圧力差のために、矢印27で示すような乱流が発生し易くなる。   As described in the above-described embodiment, as shown in FIG. 2, when the connecting cylinder 18 is rotated to the upright state, the flow path portion formed by the guide path 17 and the end 19 a of the in-cylinder flow path is The size (inner diameter) increases. For this reason, a pocket (turbulent flow pocket) 26 in which air turbulent flow is likely to occur is created in the flow path portion formed by the receiving surface 24 positioned below and the front end portion 19a of the in-cylinder flow path. For this reason, the air and dust that enter from the inlet 16 and flow from the guide channel 17 to the in-cylinder channel 19 circulate rearward as indicated by an arrow 29, and in addition, a pressure difference generated in the turbulent pocket 26. Therefore, a turbulent flow as shown by an arrow 27 is likely to occur.

この乱流の発生を抑制するために、リブ30を形成して空気の乱れを整流し、騒音の発生を防止しているが、完全には、乱流の発生を抑制することが困難である。   In order to suppress the generation of this turbulent flow, ribs 30 are formed to rectify the turbulence of the air and prevent the generation of noise. However, it is difficult to completely suppress the generation of turbulent flow. .

接続管18は、回動受け部21に上下方向に回動自在に支持されているため、図2に示すように、上方向に回動した際に回動受け部21に当たらないようにするために、流路が狭くなる場所が形成される。その流路面積が狭い場所の下流側は、流路面積が広くなるため、流路断面積の変化により乱流が発生する。   Since the connecting pipe 18 is supported by the rotation receiving portion 21 so as to be rotatable in the vertical direction, as shown in FIG. 2, it is prevented from hitting the rotation receiving portion 21 when it is turned upward. Therefore, a place where the flow path becomes narrow is formed. On the downstream side of the place where the flow path area is narrow, the flow path area is widened, so that a turbulent flow is generated due to a change in the flow path cross-sectional area.

前述したように、リブ30を形成して空気の乱れを整流しているが、完全には乱流の発生を抑制することが困難であり、この空気の乱れた起因となって、接続管18の流路面積が狭い場所より下流側で乱流が発生しやすくなり、騒音が発生する。   As described above, the ribs 30 are formed to rectify the turbulence of the air. However, it is difficult to completely suppress the turbulence, and the connection pipe 18 is caused by the turbulence of the air. Turbulent flow is more likely to occur on the downstream side of a place where the flow path area is narrow, and noise is generated.

本実施形態では、かかる騒音の発生を防止するために、第2のリブ41が形成されている。第2のリブ41は、接続筒18の最も流路面積が狭い位置から延長管が接続される接続端まで延設され、全周に形成されている。第2のリブ41は、空気および塵埃の通過方向に延びる薄板状の突条とされている。   In the present embodiment, the second rib 41 is formed to prevent the generation of such noise. The second rib 41 extends from the position where the flow path area of the connection tube 18 is the narrowest to the connection end to which the extension pipe is connected, and is formed on the entire circumference. The 2nd rib 41 is made into the thin plate-shaped protrusion extended in the passage direction of air and dust.

接続筒18は、金型構造上、流路面積が最も狭い場所が接続筒18内面を成形する金型の突き合わせ箇所となる。接続筒18の流路面積が最も狭い場所より下流側(延長管の接続端側)は、金型の抜きテーパーのために、先端になるに従って径大になるように形成されている。   In the connection cylinder 18, a place where the flow path area is the smallest in terms of the mold structure is a butt portion of the mold for forming the inner surface of the connection cylinder 18. The downstream side (connection end side of the extension pipe) of the connecting cylinder 18 where the flow path area is the narrowest is formed so as to increase in diameter toward the tip because of the taper of the die.

第2のリブ41は、相対向する第2のリブ41間の寸法を流路面積が最も狭い場所から延長管の接続端まで略同一寸法に形成することにより、接続筒18内面からの突出量を、延長管の接続端側になるに従って高くなるように形成している。これにより、空気の整流効果を大きくしている。   The second rib 41 is formed so that the dimension between the opposing second ribs 41 is substantially the same from the place where the flow path area is the narrowest to the connection end of the extension pipe, thereby protruding from the inner surface of the connection cylinder 18. Is formed so as to become higher toward the connection end side of the extension pipe. Thereby, the rectification effect of air is enlarged.

第2のリブ41を設けると、接続管18の流路面積が狭い場所より下流側で発生しやすい乱流は、第2のリブ41により整流されるので、乱流の発生が抑制され、その結果騒音が発生するのを防止できる。   When the second rib 41 is provided, the turbulent flow that is likely to be generated downstream from the place where the flow path area of the connecting pipe 18 is narrow is rectified by the second rib 41, so that the generation of turbulent flow is suppressed, As a result, generation of noise can be prevented.

図6および図7は、本発明のさらに他の実施形態を示し、前記実施形態と同一構成については、同一符号を付して説明を省略する。本実施形態は、本端11の回動受け部21に回動筒42を上下動自在に支持し、回動筒42に本体11の幅方向(左右方向)に回動自在に接続筒18を支持している。   6 and 7 show still another embodiment of the present invention. The same components as those in the above embodiment are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, a rotation cylinder 42 is supported on the rotation receiving portion 21 of the main end 11 so as to be movable up and down, and the connection cylinder 18 is rotatably mounted on the rotation cylinder 42 in the width direction (left-right direction) of the main body 11. I support it.

前述の実施形態における説明と同様に、図7に示すように、接続筒18を立てた状態に回動させると、案内路17と筒内流路の先端19aとにより形成される流路部分の大きさ(内径)が大きくなる。このため、下方に位置する受け面24および筒内流路の先端部19aにより形成される流路部分に、空気の乱流が生じ易いポケット(乱流ポケット)26が生まれる。このため、入口16から入り、案内路17から筒内流路19へと流れる空気および塵挨は、後方へと流通するのに加えて、乱流ポケット26で生じる圧力差のために、乱流が発生し易くなる。乱流が発生すると、吸込音が大きくなり、ユーザに対して騒音の発生を認識させてしまう。   Similar to the description in the above-described embodiment, as shown in FIG. 7, when the connecting cylinder 18 is turned upright, the flow path portion formed by the guide path 17 and the end 19a of the in-cylinder flow path is shown. The size (inner diameter) increases. For this reason, a pocket (turbulent flow pocket) 26 in which air turbulent flow is likely to occur is created in the flow path portion formed by the receiving surface 24 positioned below and the front end portion 19a of the in-cylinder flow path. For this reason, the air and dust that enter from the inlet 16 and flow from the guide path 17 to the in-cylinder flow path 19 circulate rearward, and because of the pressure difference that occurs in the turbulent pocket 26, Is likely to occur. When turbulent flow occurs, the suction sound increases and causes the user to recognize the generation of noise.

この実施形態では、かかる騒音の発生を防止するために、前述の実施形態と同様に、回動筒42内面にリブ30が形成されている。リブ30を設けると、乱流ポケット26で発生し易い乱流は、リブ30に案内されて回動筒42の筒内流路19を後方へと誘導されるので、乱流の発生が抑止され、その結果騒音が発生することを防止できる。   In this embodiment, in order to prevent the generation of such noise, the rib 30 is formed on the inner surface of the rotating cylinder 42 as in the above-described embodiment. When the rib 30 is provided, the turbulent flow that is likely to be generated in the turbulent pocket 26 is guided by the rib 30 and guided backward in the in-cylinder flow path 19 of the rotating cylinder 42, so that the generation of turbulent flow is suppressed. As a result, generation of noise can be prevented.

また、回動筒42に対して接続筒18を本体11の幅方向(左右方向)に回動させると、回動筒42から接続筒18へ至る空気および塵埃の流れが急激に屈曲するため、乱流が発生しやすくなり、騒音が大きくなる。   Further, when the connecting cylinder 18 is rotated in the width direction (left-right direction) of the main body 11 with respect to the rotating cylinder 42, the flow of air and dust from the rotating cylinder 42 to the connecting cylinder 18 is bent sharply. Turbulence is likely to occur and noise increases.

かかる騒音の発生を防止するために、接続筒18の回動筒42端部側の下方内面にほぼ全面にわたって第3のリブ43が複数平行に形成されている。第3のリブ43を設けると、流路の屈曲により発生し易い乱流は、第3のリブ43に案内されて接続筒18の筒内流路19を後方へと誘導されるので、乱流の発生が抑止され、その結果騒音が発生することを防止できる。   In order to prevent the generation of such noise, a plurality of third ribs 43 are formed substantially in parallel on the lower inner surface of the connecting cylinder 18 on the end of the rotating cylinder 42. When the third rib 43 is provided, the turbulent flow that is likely to occur due to the bending of the flow path is guided by the third rib 43 and guided backward in the in-cylinder flow path 19 of the connecting cylinder 18. Can be prevented, and as a result, noise can be prevented.

本実施形態においても、接続筒18の延長管への接続部側で乱流による騒音が発生する場合には、前述の実施形態と同様に、接続筒18の延長管への接続部側内面に第2のリブ41を形成すればよい。   Also in the present embodiment, when noise due to turbulent flow is generated on the connection tube side of the connection tube 18 to the extension tube, as in the above-described embodiment, the connection tube 18 on the connection portion side inner surface of the connection tube 18 to the extension tube. The second rib 41 may be formed.

リブ30、第2のリブ41および第3のリブ43の形状や構成は、図1〜図7に示すものに限定されるものではない。たとえば、図1〜図7において、各リブ30、41、43の高さを図示よりも高くすることが可能である。あるいは、図1〜図7では各リブ30、41、43は前後方向(図1、図4および図6において左側から右側方向)に一定の高さのリブとなっているが、先端側のリブの高さを高く後端側のリブの高さを低くしたり、先端側のリブの高さを低く先端側のリブの高さを高くしたりというように、前後方向の位置によってリブの高さに高低差をつけてもよい。   The shape and configuration of the rib 30, the second rib 41, and the third rib 43 are not limited to those shown in FIGS. For example, in FIGS. 1-7, the height of each rib 30,41,43 can be made higher than illustration. Alternatively, in FIGS. 1 to 7, the ribs 30, 41, and 43 are ribs having a constant height in the front-rear direction (from left to right in FIGS. 1, 4, and 6). The height of the ribs depends on the position in the front-rear direction, such as increasing the height of the ribs on the rear end side or increasing the height of the ribs on the front end side. You may make a difference in height.

また、図3に示すように、リブ30は、たとえば6つのリブとするのに代えて、1〜N個(Nは任意の整数)のリブとしてもよい。   Further, as shown in FIG. 3, the ribs 30 may be 1 to N ribs (N is an arbitrary integer) instead of six ribs, for example.

さらにまた、リブ30を形成する位置は、本体11に対して接続筒18(ベンド12)を回動させて、空気および塵挨の通過流路を屈曲させたときに、その屈曲外方側の位置に乱流ポケット26が生じ易いから、屈曲外方側の位置が好ましいが、筒内流路19の内径が大きくなる位置であれば、上記の位置以外にリブを設けてもよい。   Furthermore, the position where the rib 30 is formed is such that when the connecting tube 18 (bend 12) is rotated with respect to the main body 11 and the passage passage for air and dust is bent, the outer side of the bent 30 is formed. Since the turbulent pocket 26 is likely to be generated at the position, the position on the bent outer side is preferable. However, as long as the inner diameter of the in-cylinder channel 19 is increased, ribs may be provided in addition to the above positions.

また、第2のリブ41は、全周に形成したが、乱流が発生しやすい場所にのみ形成してもよい。   Moreover, although the 2nd rib 41 was formed in the perimeter, you may form only in the place where a turbulent flow is easy to generate | occur | produce.

また、ベンド12の回動方向は、上下方向に限らず、本体11に対してベンド12が左右方向へも回動可能な電気掃除機用吸込具に対しても、この発明を適用することが可能である。その場合において、ベンド12を回動させたときに、筒内流路の内径が大きくなる位置に、リブが設けられていればよい。   Further, the rotating direction of the bend 12 is not limited to the vertical direction, and the present invention can be applied to a vacuum cleaner suction tool in which the bend 12 can be rotated in the left-right direction with respect to the main body 11. Is possible. In that case, it suffices if a rib is provided at a position where the inner diameter of the in-cylinder channel increases when the bend 12 is rotated.

この発明に係る電気掃除機用吸込具は、上述した実施形態のものに限定されるものではない。たとえば、モータにより回転されるブラシ14ではなく、吸込時に生じる風圧により回転されるブラシを有するもの、ブラシは設けられていないもの等、種々の吸込具に適用可能である。すなわち、吸込口を有する本体および吸込口から吸い込まれた空気および塵挨を案内するための筒状のベンドを有する吸込具であれば、この発明を適用することが可能である。   The vacuum cleaner suction tool according to the present invention is not limited to the above-described embodiment. For example, instead of the brush 14 rotated by a motor, the present invention can be applied to various suction tools such as those having a brush rotated by wind pressure generated at the time of suction and those not provided with a brush. That is, the present invention can be applied to any suction tool having a main body having a suction port and a cylindrical bend for guiding air and dust sucked from the suction port.

また、この実施形態では、回動受け部21は、本体11に本体11の幅方向に回動自在に設けられていたが、他の実施形態として、回転受け部21を本体11に一体的に形成してもよい。   In this embodiment, the rotation receiving portion 21 is provided on the main body 11 so as to be rotatable in the width direction of the main body 11. However, as another embodiment, the rotation receiving portion 21 is integrated with the main body 11. It may be formed.

また、この発明に係る電気掃除機用吸込具は、アップライト型掃除機の吸込具にも適用することができる。   The vacuum cleaner suction tool according to the present invention can also be applied to a suction tool of an upright type vacuum cleaner.

この発明は、以上説明した実施形態に限定されるものではなく、請求項記載の範囲内において種々の変更が可能である。   The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.

この発明の一実施形態に係る電気掃除機用吸込具の中央縦断面図であり、ベンドを寝かせた状態の図である。It is a center longitudinal cross-sectional view of the vacuum cleaner suction tool which concerns on one Embodiment of this invention, and is a figure of the state which laid the bend. この発明の一実施形態に係る電気掃除機用吸込具の中央縦断面図であり、ベンドを立てた状態の図である。It is a center longitudinal cross-sectional view of the vacuum cleaner suction tool which concerns on one Embodiment of this invention, and is a figure of the state which stood the bend. 接続筒18単体の斜視図であり、リブ30のより具体的な構成を表わす図である。FIG. 4 is a perspective view of a single connection cylinder 18 and a more specific configuration of a rib 30. この発明の他の実施形態に係る電気掃除機用吸込具の中央断面図である。It is a center sectional view of the suction tool for vacuum cleaners concerning other embodiments of this invention. 接続筒18を延長管接続端側から見た平面図である。It is the top view which looked at the connection cylinder 18 from the extension pipe connection end side. この発明のさらに他の実施形態に係る電気掃除機用吸込具の中央断面図であり、ベンドを寝かせた状態の図である。It is a center sectional view of the suction tool for electric vacuum cleaners concerning other embodiment of this invention, and is a figure of the state which laid the bend. この発明のさらに他の実施形態に係る電気掃除機用吸込具の中央断面図であり、ベンドを立てた状態の図である。It is a center sectional view of the suction tool for electric vacuum cleaners concerning other embodiments of this invention, and is a figure of the state where the bend was stood.

符号の説明Explanation of symbols

10 吸込具(電気掃除機用吸込具)
11 本体
12 ベンド
13 吸込口
16 入口
17 案内路
18 接続筒
19 筒内流路
19a 筒内流路の先端部
20,29 空気および塵挨の流れを示す矢印
21 回動受け部
22 接続筒18の一端としての先端
24 逆半球状の受け面
25 嵌合面
27 乱流を示す矢印
30 リブ
41 第2のリブ(リブ)
42 回動筒
43 第3のリブ(リブ)
10 Suction tool (Suction tool for vacuum cleaner)
DESCRIPTION OF SYMBOLS 11 Main body 12 Bend 13 Suction inlet 16 Inlet 17 Guide path 18 Connection pipe | tube 19 In-cylinder flow path 19a The tip part of the in-cylinder flow path 20, 29 Arrow which shows the flow of air and dust 21 Rotation receiving part 22 Connection pipe | tube 18 Tip 24 as one end 24 Reverse hemispherical receiving surface 25 Fitting surface 27 Arrow indicating turbulent flow 30 Rib 41 Second rib (rib)
42 Rotating cylinder 43 Third rib (rib)

Claims (15)

被清掃面に対向される吸込口を有する本体と、その本体に対して回動可能に突設され、前記吸込口から吸い込まれる空気および塵挨を電気掃除機方向へ通過させるための筒状のベンドとを有する電気掃除機用吸込具であって、
前記ベンドは、前記本体に設けられた回動受け部と、
前記回動受け部に一端が連結されて前記本体に対して上下方向に回動自在な接続筒とを含み、
前記接続筒の筒状内面には、所定の位置に、前記空気および塵挨の通過方向に延びるリブが形成されていることを特徴とする、電気掃除機用吸込具。
A main body having a suction port opposed to the surface to be cleaned, and a cylindrical shape that is rotatably provided with respect to the main body and allows air and dust sucked from the suction port to pass in the direction of the vacuum cleaner. A vacuum cleaner suction tool having a bend,
The bend includes a rotation receiving portion provided in the main body,
A connection tube having one end connected to the rotation receiving portion and rotatable in the vertical direction with respect to the main body;
A vacuum cleaner suction tool, wherein a rib extending in a passing direction of the air and dust is formed at a predetermined position on a cylindrical inner surface of the connection cylinder.
前記ベンドの回動受け部は、略球面状の受け面を含み、
前記接続筒の一端は、その外表面が前記受け面に内嵌合する嵌合面を含み、
前記接続筒は前記受け面を中心に少なくとも上下に回動自在に設けられていて、
前記接続筒の一端の下方内面に前記リブが形成されていることを特徴とする、請求項1記載の電気掃除機用吸込具。
The bend rotation receiving portion includes a substantially spherical receiving surface,
One end of the connection cylinder includes a fitting surface whose outer surface is fitted inside the receiving surface,
The connecting cylinder is provided so as to be rotatable at least up and down around the receiving surface,
The vacuum cleaner suction tool according to claim 1, wherein the rib is formed on a lower inner surface of one end of the connection tube.
前記リブは、平行に複数設けられていることを特徴とする、請求項1または請求項2に記載の電気掃除機用吸込具。   The suction tool for a vacuum cleaner according to claim 1 or 2, wherein a plurality of the ribs are provided in parallel. 前記所定の位置は、前記本体に対して前記ベンドを回動させ、空気および塵挨の通過流路を屈曲させたときに、屈曲外方側の位置を含むことを特徴とする、請求項1記載の電気掃除機用吸込具。   2. The predetermined position includes a position on a bent outward side when the bend is rotated with respect to the main body to bend a passage passage for air and dust. The vacuum cleaner suction tool described. 前記接続管の他端側内面に、前記空気および塵埃の通過方向に延びる第2のリブが形成されていることを特徴とする、請求項1記載の電気掃除機用吸込具。   The vacuum cleaner suction tool according to claim 1, wherein a second rib extending in a direction in which the air and dust pass is formed on an inner surface of the other end side of the connection pipe. 前記第2のリブは、前記接続管の他端側内面から一端側に向かって略全周に形成されていることを特徴とする、請求項5記載の電気掃除機用吸込具。   6. The vacuum cleaner suction tool according to claim 5, wherein the second rib is formed on the substantially entire circumference from the inner surface on the other end side to the one end side of the connection pipe. 前記回動受け部は、前記本体に対して本体の幅方向に回動自在に形成されていることを特徴とする、請求項1記載の電気掃除機用吸込具。   The suction tool for a vacuum cleaner according to claim 1, wherein the rotation receiving portion is formed to be rotatable in the width direction of the main body with respect to the main body. 被清掃面に対向される吸込口を有する本体と、その本体に対して回動可能に突設され、前記吸込口から吸い込まれる空気および塵挨を電気掃除機方向へ通過させるための筒状のベンドとを有する電気掃除機用吸込具であって、
前記ベンドは、前記本体に設けられた回動受け部と、
前記回動受け部に一端が枢支されて前記本体に対して上下方向に回動自在な回動筒と、
前記回動筒に一端が枢支されて前記本体に対して左右方向に回動自在な接続筒とを含み、
前記回動筒の筒状内面には、所定の位置に、前記空気および塵挨の通過方向に延びるリブが形成されていることを特徴とする、電気掃除機用吸込具。
A main body having a suction port opposed to the surface to be cleaned, and a cylindrical shape that is rotatably provided with respect to the main body and allows air and dust sucked from the suction port to pass in the direction of the vacuum cleaner. A vacuum cleaner suction tool having a bend,
The bend includes a rotation receiving portion provided in the main body,
A rotating cylinder that is pivotally supported at one end by the rotation receiving part and is rotatable in the vertical direction with respect to the main body;
A connecting cylinder that is pivotally supported at one end by the rotating cylinder and is rotatable in the left-right direction with respect to the main body;
A vacuum cleaner suction tool, wherein a rib extending in a passing direction of the air and dust is formed at a predetermined position on a cylindrical inner surface of the rotating cylinder.
前記ベンドの回動受け部は、略円弧状の受け面を含み、
前記接続筒の一端は、その外表面が前記受け面に内嵌合する嵌合面を含み、
前記接続筒は前記受け面を中心に少なくとも上下に回動自在に設けられていて、
前記接続筒の一端の下方内面に前記リブが形成されていることを特徴とする、請求項8記載の電気掃除機用吸込具。
The rotation receiving portion of the bend includes a substantially arc-shaped receiving surface,
One end of the connection cylinder includes a fitting surface whose outer surface is fitted inside the receiving surface,
The connecting cylinder is provided so as to be rotatable at least up and down around the receiving surface,
The vacuum cleaner suction tool according to claim 8, wherein the rib is formed on a lower inner surface of one end of the connection tube.
前記リブは、平行に複数設けられていることを特徴とする、請求項8または請求項9に記載の電気掃除機用吸込具。   The vacuum cleaner suction tool according to claim 8 or 9, wherein a plurality of the ribs are provided in parallel. 前記所定の位置は、前記本体に対して前記ベンドを回動させ、空気および塵挨の通過流路を屈曲させたときに、屈曲外方側の位置を含むことを特徴とする、請求項8記載の電気掃除機用吸込具。   9. The predetermined position includes a position on a bent outward side when the bend is rotated with respect to the main body and a passage passage for air and dust is bent. The vacuum cleaner suction tool described. 被清掃面に対向される吸込口を有する本体と、その本体に対して回動可能に突設され、前記吸込口から吸い込まれる空気および塵挨を電気掃除機方向へ通過させるための筒状のベンドとを有する電気掃除機用吸込具であって、
前記ベンドは、前記本体に設けられた回動受け部と、
前記回動受け部に一端が枢支されて前記本体に対して上下方向に回動自在な回動筒と、
前記回動筒に一端が枢支されて前記本体に対して左右方向に回動自在な接続筒とを含み、
前記接続筒の筒状内面には、所定の位置に、前記空気および塵挨の通過方向に延びるリブが形成されていることを特徴とする、電気掃除機用吸込具。
A main body having a suction port opposed to the surface to be cleaned, and a cylindrical shape that is rotatably provided with respect to the main body and allows air and dust sucked from the suction port to pass in the direction of the vacuum cleaner. A vacuum cleaner suction tool having a bend,
The bend includes a rotation receiving portion provided in the main body,
A rotating cylinder that is pivotally supported at one end by the rotation receiving part and is rotatable in the vertical direction with respect to the main body;
A connecting cylinder that is pivotally supported at one end by the rotating cylinder and is rotatable in the left-right direction with respect to the main body;
A vacuum cleaner suction tool, wherein a rib extending in a passing direction of the air and dust is formed at a predetermined position on a cylindrical inner surface of the connection cylinder.
前記リブは、平行に複数設けられていることを特徴とする、請求項12に記載の電気掃除機用吸込具。   The vacuum cleaner suction tool according to claim 12, wherein a plurality of the ribs are provided in parallel. 被清掃面に対向される吸込口を有する本体と、その本体に対して回動可能に突設され、前記吸込口から吸い込まれる空気および塵挨を電気掃除機方向へ通過させるための筒状のベンドとを有する電気掃除機用吸込具であって、
前記ベンドは、前記本体に設けられた回動受け部と、
前記回動受け部に一端が枢支されて前記本体に対して上下方向に回動自在な回動筒と、
前記回動筒に一端が枢支されて前記本体に対して左右方向に回動自在な接続筒とを含み、
前記接続筒の他端側内面には、前記空気および塵挨の通過方向に延びるリブが形成されていることを特徴とする、電気掃除機用吸込具。
A main body having a suction port opposed to the surface to be cleaned, and a cylindrical shape that is rotatably provided with respect to the main body and allows air and dust sucked from the suction port to pass in the direction of the vacuum cleaner. A vacuum cleaner suction tool having a bend,
The bend includes a rotation receiving portion provided in the main body,
A rotating cylinder that is pivotally supported at one end by the rotation receiving part and is rotatable in the vertical direction with respect to the main body;
A connecting cylinder that is pivotally supported at one end by the rotating cylinder and is rotatable in the left-right direction with respect to the main body;
A suction tool for a vacuum cleaner, wherein a rib extending in a passage direction of the air and dust is formed on an inner surface of the other end side of the connection tube.
前記リブは、前記接続管の他端側内面から一端側に向かって略全周に形成されていることを特徴とする、請求項14記載の電気掃除機用吸込具。   15. The vacuum cleaner suction tool according to claim 14, wherein the rib is formed on the substantially entire circumference from the inner surface on the other end side to the one end side of the connection pipe.
JP2007320255A 2007-01-25 2007-12-12 Vacuum cleaner suction tool Active JP5172309B2 (en)

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JP2007320255A JP5172309B2 (en) 2007-01-25 2007-12-12 Vacuum cleaner suction tool
CN2008100085080A CN101229035B (en) 2007-01-25 2008-01-23 Suction device for electric dust catcher
KR1020080007365A KR20080070546A (en) 2007-01-25 2008-01-24 Inlet for electronic vacuum cleaner

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CN105593534A (en) * 2013-09-26 2016-05-18 阿尔弗雷德·凯驰两合公司 Suction device with sound mirror device

Citations (2)

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Publication number Priority date Publication date Assignee Title
JP2001198060A (en) * 2000-01-19 2001-07-24 Sanyo Electric Co Ltd Suction tool for vacuum cleaner
JP2001212045A (en) * 2000-01-31 2001-08-07 Hitachi Ltd Electric vacuum cleaner's inhalator

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JP2001212045A (en) * 2000-01-31 2001-08-07 Hitachi Ltd Electric vacuum cleaner's inhalator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105593534A (en) * 2013-09-26 2016-05-18 阿尔弗雷德·凯驰两合公司 Suction device with sound mirror device
US10184491B2 (en) 2013-09-26 2019-01-22 Alfred Kärcher SE & Co. KG Suction device with sound mirror device

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