JP5468852B2 - Dust collection bag for vacuum cleaner and electric vacuum cleaner using the same - Google Patents
Dust collection bag for vacuum cleaner and electric vacuum cleaner using the same Download PDFInfo
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Description
本発明は、電気掃除機用の集塵袋とそれを用いる電気掃除機に関し、詳しくは、塵埃吸入用の吸入口からこれと対向し送風機室からの吸引を受ける被吸引側に向け吸入される吸入風を制御して、集塵率と、目詰まり防止効果とを高めるようにした電気掃除機用の集塵袋とこれに用いる電気掃除機に関するものである。 The present invention relates to a dust bag for a vacuum cleaner and a vacuum cleaner using the same, and more specifically, the dust suction bag is sucked from a suction port for sucking dust toward a suctioned side that receives suction from a blower chamber. The present invention relates to a dust collection bag for an electric vacuum cleaner that controls intake air to increase the dust collection rate and clogging prevention effect, and an electric vacuum cleaner used therefor.
このような集塵袋とそれを用いる電気掃除機に関連する技術としては、下記の特許文献１、２に開示されたものがある。特許文献１は、集塵室に収納した集塵袋の吸入口からの吸入風の向きを、吸入口の軸線に対して斜めに偏心させることで、吸入風を吸入口と対向する被吸引側袋壁に向け、側周袋壁に沿うスパイラル流を形成する技術を開示している。吸入風のスパイラル流は、吸入風に随伴する塵埃を遠心分離し、側周袋壁への集塵率を高める。その結果、集塵率と、被吸引側での目詰まり防止効果との向上が図れる。 As technologies related to such a dust collection bag and a vacuum cleaner using the dust collection bag, there are those disclosed in Patent Documents 1 and 2 below. Patent Document 1 discloses a suctioned side that is opposed to an intake port by deviating the direction of the intake air from the intake port of the dust bag stored in the dust collection chamber with respect to the axis of the intake port. A technique for forming a spiral flow along the side circumferential bag wall toward the bag wall is disclosed. The spiral flow of the intake air centrifuges the dust accompanying the intake air and increases the dust collection rate on the side peripheral bag wall. As a result, it is possible to improve the dust collection rate and the effect of preventing clogging on the suction side.
また、特許文献２は、平面状の熱可塑性プラスチックシートを集塵袋の被吸引側袋壁の外面に熱溶着することを開示している。この場合、熱可塑性プラスチックシートは、集塵袋の吸入口よりも大きな不通気性の部分を形成する。そして、この不通気性の部分により、吸入口から袋内に吸入されてくる吸入風は、中央部からそのまわりの側周袋壁側に向け分流され、側周袋壁に沿って吸入口側袋壁に向うように反転させられる。この吸入風の前記反転時の反転勢力によって吸入風に随伴する塵埃を吸入口側に持ち運び集塵することで、集塵率と、被吸引側での目詰まり防止効果との向上を図る。 Further, Patent Document 2 discloses that a flat thermoplastic sheet is thermally welded to the outer surface of the suction side bag wall of the dust collection bag. In this case, the thermoplastic sheet forms a larger air-impermeable portion than the suction port of the dust bag. And, by this air-impermeable portion, the intake air sucked into the bag from the suction port is diverted from the central portion toward the side peripheral bag wall around it, and along the side peripheral bag wall, the suction port side Inverted to face the bag wall. The dust accompanying the suction air is carried to the suction port side by the reversal force at the time of the reversal of the suction air, and the dust collection rate and the clogging prevention effect on the suction side are improved.
しかし、特許文献１に開示の技術は、吸入風のスパイラル流が集塵袋の吸入口から被吸引側に向かうので、その際の遠心作用により側周袋壁への集塵率を高められるが、その動圧の影響で塵埃が被吸引側袋壁の側に持ち運ばれやすく、集塵率は特許文献１中に図示されているように吸入口側よりも被吸引側で高い。 However, in the technique disclosed in Patent Document 1, since the spiral flow of the suction air flows from the suction port of the dust collection bag toward the suction target side, the dust collection rate on the side peripheral bag wall can be increased by the centrifugal action at that time. The dust is easily carried to the suction side bag wall due to the dynamic pressure, and the dust collection rate is higher on the suction side than the suction port side as shown in Patent Document 1.
また、送風機室側からの吸引口域では、塵埃が集塵されていないようにも示されている。しかし、遠心分離されなかった塵埃は被吸引側袋壁の吸引口との対向域で捕捉されることになる筈で、被吸引側の比較的広い範囲で目詰まりしやすい傾向がある。さらに、吸入風が集塵袋内に偏心しながら吸入されるための特別なガイド構造が必要になる。このような特別なガイド構造は、コスト上昇の原因になるし、集塵袋の収納作業において特別な手間が必要になり、利便性の低下の原因にもなる。 Further, it is also shown that dust is not collected in the suction port area from the blower chamber side. However, dust that has not been centrifuged should be trapped in a region facing the suction port of the suction side bag wall, and tends to be clogged in a relatively wide range on the suction side. Furthermore, a special guide structure is required for the suction air to be sucked while being eccentric into the dust bag. Such a special guide structure causes an increase in cost, and requires a special effort in the operation of storing the dust bag, which also causes a decrease in convenience.
また、特許文献２に開示の技術は、集塵袋の被吸引側に吸入口よりも大きい不通気性の部分を設けただけである。従って、構造および着脱が簡単で、吸入風を吸入口側袋壁に向けに反転させることにより被吸引側での集塵率を抑えた分だけ、被吸引側での目詰まりを防止しやすいといえる。しかし、不通気性の部分は集塵袋の被吸引側の通気域を大きく塞いでしまうので圧損を招く。また、通気面積が少なくなる分だけ目詰まりの原因ともなる。さらに、圧損は設計上、送風機の容量増大、吸引能力低下という課題となってより大きな影響となる。なぜなら、不通気性の部分による通気面積不足を、集塵袋の不通気性の部分域以外で確保しようとすると、集塵袋総面積の増大、大型化、コスト上昇の原因になるし、嵩低くするには蛇腹状に保形するなど集塵袋側や集塵室側でさらなる工夫が必要になるからである。 Moreover, the technique disclosed in Patent Document 2 is merely provided with an air-impermeable portion larger than the suction port on the suction side of the dust collection bag. Therefore, the structure and attachment / detachment are simple, and it is easy to prevent clogging on the suction side by reducing the dust collection rate on the suction side by reversing the suction air toward the bag wall on the suction port side. I can say that. However, the air-impermeable portion greatly blocks the ventilation area on the suction side of the dust bag, causing pressure loss. In addition, clogging is caused by the reduction of the ventilation area. Furthermore, the pressure loss becomes a problem of increasing the capacity of the blower and lowering the suction capacity by design and has a greater influence. This is because if the air-permeable area shortage due to the air-impermeable portion is to be secured outside the air-permeable portion area of the dust-collecting bag, the total area of the dust-collecting bag is increased, the size is increased, and the cost is increased. This is because, in order to make it lower, further contrivance is required on the dust bag side or the dust chamber side, such as keeping the bellows.
本発明は、このような課題を解決するもので、構造、着脱の簡単な不通気性の部分による吸入風制御の技術を踏襲しながら、不通気性の部分による圧損を回避ないしは抑制できる、電気掃除機用の集塵袋とそれを用いる電気掃除機を提供することを目的とするものである。 The present invention solves such a problem, and it is possible to avoid or suppress pressure loss due to the air-impermeable portion while following the technology of intake air flow control with the air-permeable portion that is easy to attach and detach. An object of the present invention is to provide a dust bag for a vacuum cleaner and an electric vacuum cleaner using the same.
上記のような課題を解決するために、本発明の電気掃除機の集塵袋は、吸入口を有する吸入口側袋壁と、前記吸入口に対向する被吸引側袋壁と、前記吸入口と前記被吸引側袋壁の間を形成する側周袋壁と、前記吸入口に対向する被吸引側袋壁上に設けられ、前記吸入口から吸入される吸入風を前記側周袋壁に向け分流させ、前記側周袋壁に沿って前記吸入口側袋壁に向かう反転気流を生じさせる突出部を有する気流制御ガイドを備え、前記突出部は、前記気流制御ガイドの中央部を一方向に横断する峰部を持ち、前記峰部からその両側根本部または周辺に向けた凹曲面を含んで低くなる山状突部としたことを特徴としている。 In order to solve the above problems, dust bag of a vacuum cleaner of the present invention includes: a suction port side bag wall having an inhalation mouth, and the suction side bag wall opposite the inhalation mouth, the a side periphery bag walls forming between the inhalation mouth and the target suction side bag wall, provided on the suction side bag wall on which faces the suction port, the side peripheral intake air sucked from the suction port An airflow control guide having a projecting portion that diverts toward the bag wall and generates a reversal airflow toward the suction port side bag wall along the side circumferential bag wall, the projecting portion being a central portion of the airflow control guide It has a ridge that crosses the ridge in one direction, and is characterized in that it is a mountain-shaped protrusion that is lowered to include a concave curved surface from the ridge toward the both side roots or the periphery thereof .
このような構成では、気流制御ガイドは、集塵袋の吸入口から吸入されてくる吸入風を、ガイド面で受けることにより、受けた吸入風をガイド面形状に応じ中央部から側周袋壁側に向け上下、左右といった２つ以上の特定方向または全周に分流させる。特に、ガイド面が少なくとも中央部吸入口側に向く突出部を有することにより、平坦面の場合よりも高い分流勢力を保って側周袋壁に十分に達してそれに沿い吸入口側袋壁に向うように反転するより強い勢力の反転気流を発生させられる。 In such a configuration, the airflow control guide receives the suction air sucked from the suction port of the dust collection bag by the guide surface, and the received suction air is received from the central portion according to the guide surface shape from the side circumferential bag wall. It is divided into two or more specific directions such as up and down, left and right, or the entire circumference. In particular, since the guide surface has at least a projecting portion directed toward the central suction port side, the guide surface sufficiently reaches the side circumferential bag wall while maintaining a higher diversion force than in the case of a flat surface, and faces the suction port side bag wall along it. As a result, a reversal airflow having a stronger force is generated.
また、気流制御ガイド６は、吸入口１から被吸引側袋壁２の方向の空気の流れに対しては、ある程度の通気抵抗となる。従って、吸入口１から集塵袋１００に入った吸入風３は、直接被吸引側袋壁２からは抜けにくい。言い換えると、吸入風３は、気流制御ガイド６がない場合と比較して、より集塵袋１００全体から抜けやすい。すなわち、集塵袋１００に対する吸引力は、被吸引側袋壁２の気流制御ガイド６まわりと側周袋壁４とのコーナ部９がなす空気の淀み領域１１や、弱勢力となる特定の分流方向の間の空間、また勢力の減衰によって吸引力の影響が低下した側周袋壁内面の近傍領域にも及ぶ。 Further, the airflow control guide 6 has a certain amount of ventilation resistance against the air flow from the suction port 1 to the suction side bag wall 2. Thus, suction air 3 enters from the inhalation mouth 1 into dust bag 100 is not easily released from the direct target suction side bag wall 2. In other words, the suction air 3 is more easily removed from the entire dust bag 100 than when the airflow control guide 6 is not provided. That is, the suction force with respect to the dust collection bag 100 is a stagnation region 11 of the air formed by the corner portion 9 between the air flow control guide 6 of the suction side bag wall 2 and the side peripheral bag wall 4 or a specific shunt that becomes a weak force. It extends to the space between the directions, and also to the vicinity of the inner surface of the side circumferential bag wall where the influence of the suction force is reduced by the attenuation of the force.
上記において、さらに、ガイド面の吸入口側への突出部が、ガイド面の中央部を一方向に横断する峰部を持ち、この峰部からその両側根本部または周辺に向けた凹曲面を含んで低くなる山状突部であるものとすることができる。 In the above, the protruding portion of the guide surface toward the suction port has a ridge that crosses the central portion of the guide surface in one direction, and includes a concave curved surface from the ridge toward the both sides of the ridge or the periphery thereof. It can be a mountain-shaped protrusion that becomes lower at
このような構成では、上記に加え、さらに、ガイド面の吸入口側への突出部が、ガイド面の中央部を一方向に横断する峰部を持った山状突部であることにより、ガイド面に受ける吸入風を一方向に向く峰部による風切り作用に基づいて、両側２方向にスムーズに分流させながら、峰部からその両側根本部または周辺に向けた凹曲面を含んで低くなる形状に沿って側周袋壁側に滑らかに抵抗少なく転向させられる。 In such a configuration, in addition to the above, the protrusion of the guide surface toward the suction port is a mountain-shaped protrusion having a ridge that crosses the central portion of the guide surface in one direction. Based on the wind-cutting action by the ridges facing in one direction on the suction air received on the surface, while smoothly diverting in two directions on both sides, it has a shape that includes a concave curved surface from the ridge to its root or its periphery Along the side circumferential bag wall side is smoothly turned along with less resistance.
上記において、さらに、峰部は、中央部から両端に吸入口側に凸に湾曲しながら低くなるものとすることができる。 In the above, the peak portion can be lowered while curving convexly toward the suction port from the center portion to both ends.
このような構成では、上記に加え、さらに、分流強度を山状突部の峰部中央部で高く、両端側に低くしていくことで、吸入風の分流域と非分流域との境界で流れが乱れ、塵埃の捕集域が被吸引側袋壁２の側に乱れ及ぶのを抑制できる。 In such a configuration, in addition to the above, the shunt strength is increased at the central portion of the peak of the mountain-shaped protrusion and lowered at both ends, so that at the boundary between the suction air shunt region and the non-shunt region. It is possible to suppress the disturbance of the flow and the disturbance of the dust collection area toward the suction side bag wall 2.
上記において、さらに、ガイド面の吸入口側への突出部が、ガイド面の中央部に頂点部を有し、この頂点部からまわり全周で根本部または周辺へ向けた凹曲面を含んで低くなる富士山状突部であるものとすることができる。なお、富士山状突部とは山状突部の頂点部が平面で構成される突部をも含む。 In the above, the protruding portion of the guide surface toward the suction port has a vertex at the center of the guide surface, and includes a concave curved surface around the vertex and toward the root or the periphery. It can be a Mt. Fuji-like protrusion. In addition, the Mt. Fuji-like protrusion includes a protrusion in which the apex of the mountain-like protrusion is a flat surface.
このような構成では、上記に加え、さらに、ガイド面の吸入口側への突出部が、ガイド面の中央部の頂点部からそのまわり全周で根本部または周辺へ向けた凹曲面を含んで低くなる富士山状突部であることにより、ガイド面に受ける吸入風を中央の頂点部による風切り作用に基づいて、全周にスムーズに分流させながら、突出部からそのまわりの根本部または全周に湾曲面を含んで低くなる形状に沿って側周袋壁側全周に滑らかに抵抗少なく転向させられる。 In such a configuration, in addition to the above, the protrusion of the guide surface toward the suction port includes a concave curved surface that extends from the apex of the central portion of the guide surface to the root portion or the periphery around it. Due to the lowered Mt.Fuji-like protrusion, the intake air received on the guide surface is smoothly diverted to the entire circumference based on the wind-cutting action by the central apex, and from the protruding part to the base part or the entire circumference around it. It is smoothly turned to the entire circumference of the side circumferential bag wall along the lower shape including the curved surface with little resistance.
上記において、さらに、山状突部または富士山状突部の根本部または周辺部に向けた凹曲面の曲率半径は、気流制御ガイドの外径の１０〜９０％とすることができる。 In the above, the radius of curvature of the concave curved surface toward the root portion or the peripheral portion of the mountain-like protrusion or the Mt. Fuji-like protrusion can be 10 to 90% of the outer diameter of the airflow control guide.
このような構成では、上記に加え、さらに、山状突部または富士山状突部において、その根本部または周辺部に向けた凹曲面の曲率半径が気流制御ガイドの外径の１０〜９０％であることにより、突部で分流した吸入風の側周袋壁側への滑らかな転向を確保するのに有効である。 In such a configuration, in addition to the above, in the mountain-like protrusion or the Mt. Fuji-like protrusion, the radius of curvature of the concave curved surface toward the root part or the peripheral part is 10 to 90% of the outer diameter of the airflow control guide. by some, it is effective to ensure a smooth turning of the side peripheral bag wall of the inhalation air diverted by projection.
上記において、さらに、前記気流制御ガイドと、前記被吸引側袋壁の気流制御ガイドとの対向域との間に、この被吸引側袋壁の前記気流制御ガイドとの対向域の袋外部から袋内部に吸引が及ぶようにする通気部を形成したものとすることができる。 In the above, further, between the air flow control guide and the area facing the air flow control guide of the suction side bag wall, the bag from outside the bag in the area facing the air flow control guide of the suction side bag wall A ventilation part that allows suction to reach the inside may be formed.
このような構成では、上記に加え、さらに、特に、集塵袋内の吸入風、反転気流の勢力が全く及ばない被吸引側袋壁の気流制御ガイドとの対向域は、気流制御ガイドとの間の通気部を通じ、吸引側からの吸引を前記淀み領域に及ばせて前記静圧差で吸入風を吸引側に
抜けさせられる。
In such a configuration, in addition to the above, in particular, the area facing the air flow control guide on the suction side bag wall where the force of the suction air and the reverse air flow in the dust collection bag does not reach at all is Through the ventilation portion, suction from the suction side can be applied to the stagnation region, and the suction air can be released to the suction side by the static pressure difference.
上記本発明の集塵袋を用いる本発明の電気掃除機は、後部に電動送風機を内蔵した送風機室を、前部に塵埃を捕集する集塵袋を着脱できるように収納する集塵室を配した掃除機本体を備え、前記集塵室は、収納した前記集塵袋の吸入口と繋がるホース接続口が開口し、前記送風機室は、前記集塵室との仕切壁に吸引口が開口し、前記送風機室の後部には、前記掃除機本体の後部につながる排気口が開口し、前記集塵袋は、前記送風機室の吸引口からの吸引が前記集塵袋の被吸引側袋壁および側周袋壁の外まわりに及ぶように収納されたことを特徴とする。 The vacuum cleaner of the present invention using the dust bag of the present invention has a dust collecting chamber for storing a blower chamber having a built-in electric blower at the rear and a dust collecting bag for collecting dust at the front so that the dust collecting bag can be attached and detached. The dust collecting chamber has a hose connection port connected to the suction port of the stored dust collection bag, and the blower chamber has a suction port in a partition wall with the dust collection chamber. An exhaust port connected to the rear portion of the cleaner body is opened at the rear portion of the blower chamber, and the dust collection bag is sucked from the suction port of the blower chamber by the suction side bag wall of the dust collection bag. And it was stored so that it might extend to the outer periphery of a side surrounding bag wall.
上記において、さらに、送風機室の吸引口は、集塵室に収納された集塵袋の被吸引側袋壁を通気を損なわずに吸引側から支持する通気支持部を有したものとすることができる。 In the above, the suction port of the blower chamber may further include a ventilation support portion that supports the suction side bag wall of the dust collection bag stored in the dust collection chamber from the suction side without impairing ventilation. it can.
本発明の集塵袋によれば、反転気流３ａの反転直後の高い初期勢力によって、吸入風３に随伴する塵埃３８の中でも、大きく、重いものは被吸引側袋壁２の前を通過させるので、被吸引側袋壁２側よりも、側周袋壁４の吸入口１側で集塵されやすくなる。また、小さく軽いために吸入風３に最後まで随伴しやすい微塵は、反転気流３ａの動圧の影響を受けない被吸引側袋壁２の気流制御ガイド６まわりと側周袋壁４とのコーナ部９がなす空気の淀み領域１１や、弱勢力となる特定の分流方向の間の空間、勢力の減衰によって影響が低下した側周袋壁内面の近傍領域で効率よく補足される。 According to the dust bag of the present invention, the large and heavy dust 38 accompanying the suction air 3 is passed in front of the suction side bag wall 2 by the high initial force immediately after the reversal of the reversal air flow 3a. Thus, it is easier to collect dust on the suction port 1 side of the side circumferential bag wall 4 than on the suction side bag wall 2 side. Further, since the dust is small and light, the fine dust that easily accompanies the suction air 3 until the end is a corner between the air flow control guide 6 of the suction side bag wall 2 and the side peripheral bag wall 4 that is not affected by the dynamic pressure of the reverse air flow 3a. It is efficiently supplemented in the air stagnation region 11 formed by the portion 9, the space between the specific diversion directions that are weak forces, and the region in the vicinity of the inner surface of the side peripheral bag wall where the influence is reduced by the attenuation of the force.
これらの結果、高い、集塵率と、被吸引側袋壁の目詰まり防止効果とを満足することができる。特に、気流制御ガイドのガイド面が、少なくとも中央部に有した吸入口側に突出した突出部を有すると、風切り作用によって、吸入風をスムーズに分流させる。結果、吸入風は、平坦面の場合よりも高い分流勢力を保って側周袋壁に十分に達し、側周袋壁に沿って吸入口側袋壁に向うように反転する強い勢力の反転気流を発生させることができる。これにより、気流制御ガイドを吸入口の開口に近い大きさまで小さくして集塵袋の通気域を増大して目詰まりしにくくし、また、気流制御ガイドによる圧損を十分に抑えながら、高い集塵率と、被吸引側袋壁の目詰まり防止効果と、を十分に満足することができ、圧損を抑えられる分だけ電動送風機の容量アップや集塵袋の大型化を抑えられる。 As a result, it is possible to satisfy the high dust collection rate and the effect of preventing clogging of the suction side bag wall. In particular, when the guide surface of the airflow control guide has at least a protruding portion that protrudes toward the suction port at the center, the intake air is smoothly diverted by the wind cutting action. As a result, the suction air reaches the side peripheral bag wall sufficiently while maintaining a higher diversion force than in the case of a flat surface, and the strong air reversal airflow is reversed along the side peripheral bag wall toward the suction port side bag wall. Can be generated. As a result, the airflow control guide is reduced to a size close to the opening of the suction port, the ventilation area of the dust bag is increased to prevent clogging, and high dust collection is achieved while suppressing pressure loss due to the airflow control guide. The efficiency and the effect of preventing clogging of the suction side bag wall can be sufficiently satisfied, and the capacity increase of the electric blower and the increase of the size of the dust collecting bag can be suppressed by the amount of pressure loss.
本発明の実施の形態に係る電気掃除機の集塵袋の幾つかの具体例と、それを用いる電気掃除機の１つの具体例について図１〜図１２を参照しながら以下に説明し、本発明の理解に供する。以下の説明は、本発明の具体例であって、特許請求の範囲を限定するものではない。 Several specific examples of the dust bag of the vacuum cleaner according to the embodiment of the present invention and one specific example of the vacuum cleaner using the same will be described below with reference to FIGS. To help understand the invention. The following description is a specific example of the present invention and does not limit the scope of the claims.
本発明の電気掃除機の集塵袋の実施の形態は、図１〜図４に示す例、図８に示す例、図９に示す例、図１０に示す例の集塵袋１００で代表して示す。本発明の集塵袋は、吸入口１に対向する被吸引側袋壁２に、気流制御ガイド６を設けたものである。この気流制御ガイド６は、少なくとも中央部に吸入口１側に向く突出部４００を有する。この突出部４００は、受けた吸入風３を中央部からそのまわりの左右、上下といった２以上の特定方向または全周に側周袋壁４に向け分流させた後、側周袋壁４に沿って吸入口側袋壁５に向かう反転気流３ａを生じさせる。 The embodiment of the dust bag of the vacuum cleaner of the present invention is represented by the example shown in FIGS. 1 to 4, the example shown in FIG. 8, the example shown in FIG. 9, and the dust bag 100 shown in FIG. Show. The dust collection bag of the present invention is provided with an airflow control guide 6 on the suction side bag wall 2 facing the suction port 1. This airflow control guide 6 has a protrusion 400 that faces at the suction port 1 side at least in the center. The projecting portion 400 divides the received intake air 3 from the central portion toward the side circumferential bag wall 4 in two or more specific directions such as left and right, up and down, or the entire circumference, and then along the side circumferential bag wall 4. As a result, a reversal air flow 3a toward the suction side bag wall 5 is generated.
このように、気流制御ガイド６は、集塵袋１００の吸入口１から吸入されてくる吸入風３を、ガイド面６ｄで受け、受けた吸入風３をガイド面６ｄの形状に応じて中央部から側周袋壁４側に向け左右、上下といった２以上の特定方向または全周に分流させる。特に、ガイド面６ｄが少なくとも中央部に吸入口１側に向く突出部４００を有することにより、平坦面の場合よりも高い分流勢力を保って側周袋壁４に十分に達し、側周袋壁４沿いに吸入口側袋壁５に向うように反転する強い勢力の反転気流３ａを発生させられる。 Thus, the airflow control guide 6 receives the suction air 3 sucked from the suction port 1 of the dust bag 100 at the guide surface 6d, and receives the received suction air 3 according to the shape of the guide surface 6d. To the side circumferential bag wall 4 side, the flow is divided into two or more specific directions such as left and right, up and down, or the entire circumference. In particular, since the guide surface 6d has the protrusion 400 at the center at least toward the suction port 1, it can sufficiently reach the side peripheral bag wall 4 while maintaining a higher diversion force than that of the flat surface. A reversal air flow 3 a having a strong force that reverses toward the suction side bag wall 5 along the line 4 is generated.
また、気流制御ガイド６は、吸入口１から被吸引側袋壁２の方向の空気の流れに対しては、ある程度の通気抵抗となる。従って、吸入口１から集塵袋１００に入った吸入風３は、直接被吸引側袋壁２からは抜けにくい。言い換えると、吸入風３は、気流制御ガイド６がない場合と比較して、より集塵袋１００全体から抜けやすい。すなわち、集塵袋１００に対する吸引力は、被吸引側袋壁２の気流制御ガイド６まわりと側周袋壁４とのコーナ部９がなす空気の淀み領域１１や、弱勢力となる特定の分流方向の間の空間、また勢力の減衰によって吸引力の影響が低下した側周袋壁内面の近傍領域にも及ぶ。 Further, the airflow control guide 6 has a certain amount of ventilation resistance against the air flow from the suction port 1 to the suction side bag wall 2. Thus, suction air 3 enters from the inhalation mouth 1 into dust bag 100 is not easily released from the direct target suction side bag wall 2. In other words, the suction air 3 is more easily removed from the entire dust bag 100 than when the airflow control guide 6 is not provided. That is, the suction force with respect to the dust collection bag 100 is a stagnation region 11 of the air formed by the corner portion 9 between the air flow control guide 6 of the suction side bag wall 2 and the side peripheral bag wall 4 or a specific shunt that becomes a weak force. It extends to the space between the directions, and also to the vicinity of the inner surface of the side circumferential bag wall where the influence of the suction force is reduced by the attenuation of the force.
そして、反転気流３ａの反転直後の高い初期勢力によって、吸入風３に随伴する塵埃３８の中でも、大きく、重いものは被吸引側袋壁２の前を通過させるので、被吸引側袋壁２側よりも、側周袋壁４の吸入口１側で集塵されやすくなる。また、小さく軽いために吸入風３に最後まで随伴しやすい微塵は、反転気流３ａの動圧の影響を受けない被吸引側袋壁２の気流制御ガイド６まわりと側周袋壁４とのコーナ部９がなす空気の淀み領域１１や、弱勢力となる特定の分流方向の間の空間、勢力の減衰によって影響が低下した側周袋壁内面の近傍領域で補足される。 Then, due to the high initial force immediately after the reversal of the reversal air flow 3a, large and heavy dust 38 accompanying the suction air 3 is passed in front of the suction-side bag wall 2, so that the suction-side bag wall 2 side It becomes easier to collect dust on the suction port 1 side of the side circumferential bag wall 4 than. Further, since the dust is small and light, the fine dust that easily accompanies the suction air 3 until the end is a corner between the air flow control guide 6 of the suction side bag wall 2 and the side peripheral bag wall 4 that is not affected by the dynamic pressure of the reverse air flow 3a. It is supplemented by the air stagnation region 11 formed by the portion 9, the space between the specific diversion directions as weak force, and the region near the inner surface of the side peripheral bag wall whose influence is reduced by the attenuation of the force.
この結果、集塵率と、被吸引側袋壁２の目詰まり防止効果とを十分に満足した上で、通気面積減少による早詰まりや、気流制御ガイド６による圧損を回避ないしは抑制することができる。従って、圧損に対応するための電動送風機２１の容量増大や集塵袋１００の大型化は、解消ないしは軽減される。 As a result, after sufficiently satisfying the dust collection rate and the clogging prevention effect of the suction side bag wall 2, premature clogging due to a decrease in the ventilation area and pressure loss due to the airflow control guide 6 can be avoided or suppressed. . Therefore, the increase in the capacity of the electric blower 21 and the increase in the size of the dust bag 100 to cope with pressure loss are eliminated or reduced.
より具体的には、気流制御ガイド６の大きさは、吸入口に対し直径比で±１５％程度の大きさに制限する。このようにすることで、気流制御ガイド６を接着したために、集塵袋１００の被吸引側袋壁２における通気抵抗の増大を小さく抑え、しかも、比較的大きな塵埃を吸入口側袋壁まで運ぶ反転気流を発生させることができる。気流制御ガイドは、通気抵抗にもなるため、大きすぎると圧損の原因となり、小さすぎると本発明で意図する反転気流が発生されない。気流制御ガイド６の大きさを、上記のようにすることで、集塵率と、被吸引側袋壁２側の目詰まり防止効果を高めやすい利点がある。 More specifically, the size of the airflow control guide 6 is limited to about ± 15% in diameter ratio with respect to the suction port. By doing so, since the airflow control guide 6 is adhered, an increase in the airflow resistance in the suction side bag wall 2 of the dust collection bag 100 is suppressed, and relatively large dust is carried to the suction side bag wall. A reverse airflow can be generated. Since the airflow control guide also becomes a ventilation resistance, if it is too large, it causes pressure loss, and if it is too small, the reverse airflow intended in the present invention is not generated. By setting the size of the airflow control guide 6 as described above, there is an advantage that the dust collection rate and the clogging prevention effect on the suction side bag wall 2 side can be easily improved.
気流制御ガイド６のガイド面６ｄは、図６（ａ）に示す参考例のように平坦でも吸入風３を中央部から側周袋壁４に向けまわり全周に分流させることはできる。しかし、平坦面は、分流時の吸入風３の勢力損失、速度損失が大きくなり、また、距離のある側周袋壁４にまで達して反転させるにはガイド面６ｄの側周袋壁４側への広がりを大きくする必要があるので、通気面積率が低く、圧損が大きくなる傾向になる。従って、前記したように、少なくとも中央部で吸入口１側に突出する突出部４００を設けるのが好ましい態様である。突出部４００の形状は図６（ｂ）〜（ｅ）に実線で示すような各種形状のものとすることができる。 Even if the guide surface 6d of the airflow control guide 6 is flat as in the reference example shown in FIG. 6A, the intake air 3 can flow from the central portion toward the side peripheral bag wall 4 and be diverted to the entire circumference. However, the flat surface increases the power loss and velocity loss of the intake air 3 at the time of diversion, and reaches the side circumferential bag wall 4 with a distance and reverses it to the side circumferential bag wall 4 side of the guide surface 6d. Since it is necessary to increase the spread of the gas, the ventilation area ratio is low and the pressure loss tends to increase. Therefore, as described above, it is preferable to provide the protrusion 400 that protrudes toward the inlet 1 at least in the center. The shape of the protrusion 400 can be various shapes as shown by solid lines in FIGS.
さらに詳述すると、図６（ｂ）に示す突出部４００の例では、気流制御ガイド６のガイド面６ｄの中央部に実線で示すような凸部６ｇが仮想線で示すように一方向に延びる一文字形態で設ける。これにより、気流制御ガイド６のガイド面６ｄが受ける吸入風３を、凸部６ｇによりその両側へ振り分けて、２方向に分流させられる。 More specifically, in the example of the projecting portion 400 shown in FIG. 6B, a convex portion 6g as shown by a solid line extends in one direction at the center of the guide surface 6d of the airflow control guide 6 as shown by a virtual line. Provided in a single character form. As a result, the intake air 3 received by the guide surface 6d of the airflow control guide 6 is distributed to both sides by the convex portion 6g and is divided into two directions.
図６（ｃ）に例示する突出部４００は、図６（ｂ）に示す凸部６ｇを突出側に向け尖らせた尖鋭突部６ｈとすることで、吸入風３に対する両側へ振り分け分流するときの、吸入風３との衝突を無くして勢力の減衰を防止しやすくしている。これによって、吸入風３の反転による塵埃３８の吸入口側袋壁５側への持ち運び作用を高められる。従って、集塵率と、被吸引側袋壁２の目詰まり防止効果と、をさらに高められる。 When the projecting portion 400 illustrated in FIG. 6C is a sharp projecting portion 6h in which the projecting portion 6g illustrated in FIG. 6B is sharpened toward the projecting side, the divided portion is distributed to both sides with respect to the intake air 3. Thus, the collision with the intake air 3 is eliminated, and the attenuation of the power is easily prevented. Thereby, the carrying action of the dust 38 to the suction side bag wall 5 side by the reversal of the suction air 3 can be enhanced. Therefore, the dust collection rate and the effect of preventing clogging of the suction side bag wall 2 can be further enhanced.
図６（ｄ）に例示する突出部４００は、図１〜図４に示したものと共通しており、図６（ｄ）に実線で示すように中央部に一方向に向く峰部を持ちその両側の根本部または周辺部に向けた凹曲面を含んで低くなる山状突部６ｉとし、峰部が仮想線で示すようにその中央部から両端側に向け湾曲しながら低くなるようにしてある。これにより、流入風３をより抵抗少なく滑らかに転向させて、さらに勢力の減衰少なく両側に分流することができる。併せて、分流強度を山状突部６ｉの峰部中央部で高く、両端側に低くしていくことで、吸入風３の分流域と非分流域との境界で流が乱れ、塵埃３８の捕集域が被吸引側袋壁２の側に乱れ及んで、集塵率、被吸引側袋壁２の目詰まり防止効果が低下するのを抑制できる。 The protrusion 400 illustrated in FIG. 6 (d) is the same as that shown in FIGS. 1 to 4, and has a ridge facing in one direction at the center as shown by the solid line in FIG. 6 (d). It is a mountain-like protrusion 6i that includes a concave curved surface toward the root part or the peripheral part on both sides, and is lowered so that the peak part is lowered while curving from the central part toward both ends as shown by phantom lines. is there. As a result, the inflow air 3 can be smoothly turned with less resistance, and can be diverted to both sides with less attenuation of power. At the same time, the shunt strength is increased at the central portion of the peak of the mountain-shaped protrusion 6i and lowered at both ends, so that the flow is disturbed at the boundary between the shunt region and the non-shunt region of the intake air 3, and the dust 38 It can be suppressed that the collection area is disturbed toward the suction side bag wall 2 and the dust collection rate and the clogging prevention effect of the suction side bag wall 2 are reduced.
図６（ｅ）に例示する突出部４００は、図６（ｄ）に示す例の山状突部６ｉの形状を踏襲しながら、分流方向の終端部で湾曲向きが反転する凹曲面６ｊを持った山状突部を形成したものとしている。これにより、吸入風３の側周袋壁４側への分流を、吸入口側袋壁５側に向かう方向成分を持って強制反転させられる。結果、側周袋壁４への衝突による勢力の減衰、随伴している塵埃３８の衝突分離を抑え、吸入口側での集塵率を高められる。 The protrusion 400 illustrated in FIG. 6 (e) has a concave curved surface 6j whose curve direction is reversed at the end portion in the diversion direction while following the shape of the mountain-shaped protrusion 6i in the example illustrated in FIG. 6 (d). It is assumed that a mountain-shaped protrusion is formed. Thus, the diversion of the suction air 3 toward the side peripheral bag wall 4 is forcibly reversed with a directional component toward the suction port side bag wall 5. As a result, it is possible to suppress the attenuation of the force due to the collision with the side circumferential bag wall 4 and the collision separation of the accompanying dust 38 and to increase the dust collection rate on the suction port side.
塵埃３８の吸入口側での集塵率を高めるには、凹曲面６ｊによる吸入風３の強制反転は、吸入風３に随伴している塵埃３８を遠心分離する程の急反転を回避するのが好適である。塵埃３８が反転気流に随伴できなければ、塵埃３８は、被吸引側袋壁２と側周袋壁４とで作られるコーナ部４３に捕集されてしまうからである。そこで、強制反転後の吸入風３が側周袋壁４に対し向う角度θは、例えば、４５°〜６０°程度が好適であるが、この範囲の角度に限定されるものではない。なお４５°未満では側周袋壁４により大きく重い塵埃３８の衝突分離が生じやすくなり、６０°以上では吸入風３の強制反転により大きく重い塵埃３８の遠心分離が生じやすくなる。 To increase the dust collecting rate at inhalation port side of the dust 38, forcible inversion of intake air 3 by concave surface 6j avoids sudden reversal of extent of the dust 38 that accompany the intake air 3 and centrifuged Is preferred. This is because if the dust 38 cannot accompany the reverse airflow, the dust 38 is collected in the corner portion 43 formed by the suction side bag wall 2 and the side peripheral bag wall 4. Therefore, the angle θ at which the suction air 3 after the forced reversal faces the side circumferential bag wall 4 is preferably about 45 ° to 60 °, for example, but is not limited to this range. In yet less than 45 ° tends to occur a collision separation of large and heavy dust 38 by the side peripheral bag walls 4, centrifugation massive dust 38 by forcible inversion of inhalation air 3 is likely to occur at 60 ° or more.
図６（ｂ）〜（ｅ）の例のいずれの気流制御ガイドも、吸入風３を両側に分流するものであり、図１〜図４に示す例では、左右に分流する向きで気流制御ガイド６を配置してある。これは、図１（ａ）（ｂ）に示すように、ほぼ正方形の袋材１００ａ、１００ｂを２枚重ねにして周辺を溶着などして連続な封止部４４とした集塵袋１００を、図１に一点鎖線で示す折れ線５１で折り、被吸引側袋壁２部と吸入口側袋壁５部との図２に示す前後方向に引き離して使用する際の形態が、図２、図３に示すように横長になることに対応したものである。このような集塵袋では、吸入口１を通じ集塵袋１００内に吸引されて吸入口１に対向する被吸引側袋壁２に向かう吸入風３を、気流制御ガイド６の前記折れ線５１に直交する向きの前記凸部６ｇ、尖鋭突部６ｈ、山状突部６ｉによる折れ線５１に平行な左右方向に分流することにより、横長な集塵袋１００の側周袋壁４の両側部に沿って吸入口側袋壁５側に向かわせ、集塵袋１００の広い横長領域４５の吸入口側袋壁５側に捕集されやすくすることができる。 Each of the airflow control guides in the examples of FIGS. 6B to 6E diverts the intake air 3 to both sides. In the examples shown in FIGS. 6 is arranged. As shown in FIGS. 1 (a) and 1 (b), the dust collection bag 100 is formed as a continuous sealing portion 44 by overlapping two substantially square bag materials 100a and 100b and welding the periphery. 1 and FIG. 3 shows a form in which the suction side bag wall 2 part and the suction port side bag wall 5 part are used by being separated in the front-rear direction shown in FIG. This corresponds to the landscape orientation as shown in FIG. In such a dust collection bag, the suction air 3 sucked into the dust collection bag 100 through the suction port 1 and directed toward the suction side bag wall 2 facing the suction port 1 is orthogonal to the broken line 51 of the airflow control guide 6. Along the both sides of the side circumferential bag wall 4 of the horizontally long dust collection bag 100 by diverting in the left-right direction parallel to the fold line 51 by the convex portion 6g, the sharp projection 6h, and the mountain-shaped projection 6i. It is possible to make it easy to be collected on the suction port side bag wall 5 side of the wide horizontally long region 45 of the dust bag 100 toward the suction port side bag wall 5 side.
なお、山状突部６ｉの峰部から裾部への湾曲半径は、気流制御ガイド６の直径の１０〜９０％、峰のガイド面６ｄの外周位置からの高さは、同直径の１０〜１５％がよい。具体例としては、図１１に示す通気圧力損失の実験結果（ａ）、図１２に示す風量低下率実験結果（ａ）での数値データを近似してイレギュラーなデータを排除して見た傾向性から、直径は４５ｍｍ〜６０ｍｍが好適である。また、図１１に示す通気圧力損失の実験結果（ｂ）、図１２に示す風量低下率実験結果（ｂ）での数値データを近似してイレギュラーなデータを排除して見た傾向性から、曲率半径は５〜４０ｍｍ、高さは６ｍｍ〜８ｍｍが好適である。 It should be noted that the radius of curvature of the mountain-shaped protrusion 6i from the peak to the skirt is 10 to 90% of the diameter of the airflow control guide 6, and the height of the peak from the outer peripheral position of the guide surface 6d is 10 to 10 of the same diameter. 15% is good. As a specific example, the tendency of looking at the experimental data (a) of the ventilation pressure loss shown in FIG. 11 and the numerical data in the experimental result (a) of the air flow rate reduction rate shown in FIG. In view of the properties, the diameter is preferably 45 mm to 60 mm. Further, from the tendency of looking at the experimental result (b) of the ventilation pressure loss shown in FIG. 11 and the numerical data in the air flow rate reduction rate experimental result (b) shown in FIG. The curvature radius is preferably 5 to 40 mm, and the height is preferably 6 mm to 8 mm.
以上の結果、通気抵抗が増大するのを抑えながら、集塵率と、被吸引側袋壁２の目詰まり防止効果とを高めることができる。この場合、図１〜図４に示す例では気流制御ガイド６をガイド面６ｄ側から見た正面形状を円形に形成してあるが、集塵袋１００の使用時の横断面形状に近い、あるいは相似な正面形状にすると、側周袋壁４までの距離に比例したガイド面６ｂの長さで吸入風３の分流による案内を行うことができる。 As a result, the dust collection rate and the effect of preventing clogging of the suction side bag wall 2 can be enhanced while suppressing an increase in ventilation resistance. In this case, in the example shown in FIGS. 1 to 4, the front shape of the air flow control guide 6 viewed from the guide surface 6 d side is formed in a circle, but it is close to the cross-sectional shape when the dust bag 100 is used, or When a similar front shape is used, guidance by the diversion of the intake air 3 can be performed with the length of the guide surface 6b proportional to the distance to the side circumferential bag wall 4.
この意味で、図１〜図４に示す気流制御ガイド６の円形な正面形状を横長な四角形、楕円形などとして、図６（ａ）〜（ｅ）に示すようなガイド面６ｄを採用することもできる。なお、気流制御ガイド６はそのガイド面６ｄの軸線を例えば吸入口１側に向け下側に傾斜するよう配置してもよい。これによって、吸入風３を分流し反転させて集塵袋１００内の吸引側に捕集されるようにする捕集位置を、軸線の傾き側、例えば下側などに偏位させて、側周袋壁４の上部側への通気を十分に確保することができる。 In this sense, the circular front shape of the airflow control guide 6 shown in FIGS. 1 to 4 is changed to a horizontally long rectangle, ellipse, etc., and a guide surface 6d as shown in FIGS. 6A to 6E is adopted. You can also. The airflow control guide 6 may be arranged so that the axis of the guide surface 6d is inclined downward, for example, toward the suction port 1 side. As a result, the collection position at which the suction air 3 is diverted and reversed so as to be collected on the suction side in the dust bag 100 is deviated to the inclined side of the axis, for example, the lower side, and the side periphery. Sufficient ventilation to the upper side of the bag wall 4 can be ensured.
さらに、突出部４００は、図６（ｂ）〜（ｅ）に示す断面形状を軸線まわりに全周連続させて、吸入風３を軸線まわり全周で側周袋壁４の全周に向け分流させるようにすることもできる。このようにすると、図６（ａ）に示す平坦なガイド面６ｄに対して、図６（ｂ）〜（ｅ）に示すガイド面６ｄの形状に応じて持つ有利な分流特性を、頂点部６ｎの中心軸まわりの全周において発揮するものとなる。 Further, the projecting portion 400 has the cross-sectional shape shown in FIGS. 6B to 6E continuous all around the axis, and diverts the intake air 3 toward the entire circumference of the side circumferential wall 4 around the axis. It can also be made to do. In this way, an advantageous shunting characteristic according to the shape of the guide surface 6d shown in FIGS. 6 (b) to 6 (e) is obtained for the flat guide surface 6d shown in FIG. 6 (a). It will be exhibited on the entire circumference around the central axis.
具体例として図８には、図６（ｄ）に示す例の断面形状を頂点部６ｎの中心軸まわりに連続した富士山状突部となるガイド面６ｄとした場合の吸入風３の分流状態を示す。中央に頂点部６ｎを持ちその周りの根本部または周辺に向けた凹曲面を含んで低くなる富士山状突部をなし、集塵袋１００の吸入口側袋壁５側での吸入口１まわり、吸入口１からの吸入風３まわりでの集塵率を高められる。 As a specific example, FIG. 8 shows a diversion state of the intake air 3 when the cross-sectional shape of the example shown in FIG. 6 (d) is a guide surface 6d that is a Mt. Fuji-like protrusion continuous around the central axis of the apex 6n. Show. Mount Mt. Fuji, which has a vertex 6n at the center and has a concave curved surface directed toward the periphery or the periphery around the apex 6n, and around the inlet 1 on the inlet side bag wall 5 side of the dust bag 100, The dust collection rate around the suction air 3 from the suction port 1 can be increased.
これに対し、図９に示す例は、図８に例示した富士山状突部としたガイド面６ｄに、凹条螺旋６ｄ１を形成し、ガイド面６ｄで受けて軸線まわりに側周袋壁４に向け吸入風３を分流させる方向に捻りを与えて、突部６ｍまわり、つまり軸線まわりの旋回流として反転させられるようにしている。 On the other hand, in the example shown in FIG. 9, a concave spiral 6d1 is formed on the guide surface 6d that is the Mt. Fuji-like protrusion illustrated in FIG. 8, and is received by the guide surface 6d to the side circumferential bag wall 4 around the axis. Twist is applied in the direction in which the direct intake air 3 is diverted so as to be reversed as a swirl flow around the protrusion 6m, that is, around the axis.
これにより、吸入風３の分流、反転時の遠心力による被吸引側袋壁２側での塵埃３８の分離を抑えたまま、側周袋壁４への衝突角度をさらに抑えて塵埃３８が衝突分離されるのを回避しやすくする。さらに、吸入風３が反転後に吸入口側袋壁５に到達するまでの経路長が、旋回流となっている分だけ長いので、多くの塵埃３８を随伴しやすく、吸引側での集塵率をさらに高めやすくなる。このような凹条螺旋６ｄ１は、図６（ｂ）〜（ｅ）の断面形状を軸線まわりに連続させた場合のどのガイド面６ａに適用しても有効である。 As a result, while the separation of the dust 38 on the suction side bag wall 2 side due to the diversion of the suction air 3 and the centrifugal force at the time of reversal is suppressed, the collision angle with the side peripheral bag wall 4 is further suppressed and the dust 38 collides. Make it easy to avoid separation. Furthermore, since the path length until the suction air 3 is reversed and reaches the suction-side bag wall 5 is long by the amount of the swirling flow, a lot of dust 38 is easily accompanied, and the dust collection rate on the suction side It becomes easier to raise. Such a concave spiral 6d1 is effective when applied to any guide surface 6a in the case where the cross-sectional shapes of FIGS. 6B to 6E are continuous around the axis.
これらの場合も、気流制御ガイド６の正面形状は集塵袋１００の横断面に近いか相似形、楕円形などとして上記の場合同様の利点が得られる。なお、凹条螺旋６ｄ１は凹曲面で形成してあることにより、各分流気流を気流の中心線側に寄せて勢力を高め重く大きな塵埃を持ち運んで所定域に捕集されやすくするのに併せ、気流の分流方向間での勢力を弱めて微塵の捕集域を確保しやすくする働きをさせられる。このような働きは旋回させない分流技術にも適用して有効である。しかし、凹曲面に代えてリブによる螺線凸状間の平坦面で形成することもできる。 Also in these cases, the same advantage as described above can be obtained by assuming that the front shape of the airflow control guide 6 is close to the cross section of the dust bag 100 or is similar or elliptical. In addition, the concave spiral 6d1 is formed in a concave curved surface, so that each shunt airflow is brought closer to the centerline side of the airflow to increase the power and carry heavy heavy dust so that it can be easily collected in a predetermined area. It can work to make it easier to secure a dust collection area by weakening the force between the diversion directions of the air flow. Such a function is also effective when applied to a shunt technique that does not rotate. However, it can also be formed by a flat surface between spiral convexities by ribs instead of the concave curved surface.
図示例のように、気流制御ガイド６の正面形状が円形である場合、その直径は、図１に示すように口紙２８に形成した吸入口１の直径の±１５％として十分である。吸入口１の直径５２ｍｍが標準であることを考慮すると、気流制御ガイド６の直径は４５ｍｍ〜６０ｍｍとすることができる。しかし、気流制御ガイド６の直径を、吸入口１の直径（５２ｍｍ）以下にすると、図１（ｂ）に示すように表裏の袋材１００ａ、１００ｂが密着し合う折り畳み状態で、気流制御ガイド６が吸入口１と嵌り合うので、それが立体形状であっても集塵袋１００の折り畳み状体での嵩が高くならないか、嵩高くなるのを抑えられる。すなわち、袋に入れて適数枚、例えば３枚セットにしたものを、適数組、例えば１０組を１つに梱包して取り扱うといった、他数枚重ねての取り扱いに有利となる。 When the front shape of the airflow control guide 6 is circular as in the illustrated example, the diameter is sufficient as ± 15% of the diameter of the suction port 1 formed in the base paper 28 as shown in FIG. Considering that the diameter of the suction port 1 is 52 mm, the diameter of the airflow control guide 6 can be 45 mm to 60 mm. However, when the diameter of the airflow control guide 6 is set to be equal to or smaller than the diameter (52 mm) of the suction port 1, the airflow control guide 6 is in a folded state in which the front and back bag materials 100a and 100b are in close contact with each other as shown in FIG. Fits with the suction port 1, even if it is a three-dimensional shape, it is possible to prevent the bulk of the folded bag of the dust bag 100 from increasing or from becoming bulky. That is, it is advantageous for handling a plurality of other sheets, such as packaging an appropriate number of sheets, for example, a set of three sheets, in a bag and packing an appropriate number of groups, for example, 10 sets.
また、図１に示すように、気流制御ガイド６を吸入口１よりも小さくすれば、折り畳んだ状態の集塵袋１００の被吸引側袋壁２の所定位置に、吸入口１を通じて気流制御ガイド６を後置きすることができる。すると、吸入口１を通じ露出している付着周辺部６ｃを集塵袋１００の被吸引側袋壁２に対し溶着などして付着することができる。すなわち、集塵袋１００の形成後の後付け作業で、気流制御ガイド６を被吸引側袋壁２の所定位置に配置させることができる。これは、既製品の改良に有利であるし、既製品の製造ラインを変更することなく従来通りに形成した集塵袋１００に対し、気流制御ガイド６を後付けする工程を付加するか、別途行えばよく、製造ライン、製造工程の大掛かりな変更が不要になるという効果を奏する。従って、気流制御ガイド６の大きさは、吸入口１の直径の−１５％から吸入口１の直径未満であれば、より好適であると言える。 As shown in FIG. 1, if the airflow control guide 6 is made smaller than the suction port 1, the airflow control guide is passed through the suction port 1 to a predetermined position of the suction side bag wall 2 of the dust collection bag 100 in a folded state. 6 can be postponed. Then, the adhesion peripheral portion 6 c exposed through the suction port 1 can be adhered to the suction side bag wall 2 of the dust collection bag 100 by welding or the like. In other words, the airflow control guide 6 can be disposed at a predetermined position on the suction side bag wall 2 in a retrofitting operation after the dust bag 100 is formed. This is advantageous for improvement of ready-made products, and a step of retrofitting the airflow control guide 6 is added to the dust collection bag 100 formed as usual without changing the production line of the ready-made products, or is performed separately. What is necessary is that there is an effect that a large-scale change of the production line and the production process becomes unnecessary. Therefore, it can be said that the size of the airflow control guide 6 is more preferable if the size is −15% of the diameter of the suction port 1 and less than the diameter of the suction port 1.
さらに、本実施の形態では、気流制御ガイド６と被吸引側袋壁２との間に、この被吸引側袋壁２の気流制御ガイド６との対向域２ａの袋外部から袋内部に吸引が及ぶようにする
通気部７を形成してある。この通気部７は、集塵袋１００全体の通気抵抗の低減に役立つとともに、集塵袋１００内の吸入風、反転気流の勢力が全く及ばない被吸引側袋壁２の気流制御ガイド６との対向域２ａにも、吸引力を及ばせることができる。この通気部７からの吸引力は、前記淀み領域１１にも及ぶので、微塵の捕集にも有効であり、早期目詰まりや、気流制御ガイドによる圧損を回避ないしは抑制することができる。
Further, in the present embodiment, suction is performed between the air flow control guide 6 and the suction side bag wall 2 from the outside of the bag in the region 2a facing the air flow control guide 6 of the suction side bag wall 2 to the inside of the bag. A ventilation portion 7 is formed so as to extend. This ventilation part 7 is useful for reducing the ventilation resistance of the dust bag 100 as a whole, and with the air flow control guide 6 of the suction side bag wall 2 where the force of the suction air and the reverse air flow in the dust bag 100 does not reach at all. A suction force can also be exerted on the facing area 2a. Since the suction force from the ventilation portion 7 extends to the stagnation region 11, it is also effective for collecting fine dust, and can prevent or suppress early clogging and pressure loss due to the airflow control guide.
気流制御ガイド６が、被吸引側袋壁２の内面２ｂに付着して取付けられる場合は、周辺部を被吸引側袋壁２に断続して付着させて、付着域６ａ、６ａの間の非付着域６ｂを、前記通気部７とすることができる。 When the airflow control guide 6 is attached to the inner surface 2b of the sucked side bag wall 2, the peripheral portion is intermittently attached to the sucked side bag wall 2, and the non-adhesion between the adhering areas 6a and 6a. The adhesion area 6b can be the ventilation section 7.
また、気流制御ガイド６の被吸引側袋壁２への付着周辺部６ｃ、または付着周辺部６ｃを含む全体が図７に示す例のように被吸引側袋壁２に沿い、また密着する平坦な単純形状の場合でも、通気部７は、被吸引側袋壁２の気流制御ガイド６との対向域２ａ、とすることができる。ただし、付着域６ａを除く対向域２ａの部分が、通気部７を含んで外まわりからの吸引により、部分的若しくは全域が外側に膨らんで気流制御ガイド６から離れて通気部７を開くことが必要である。 Moreover, the adhesion peripheral part 6c to the to-be-sucked side bag wall 2 of the airflow control guide 6 or the whole including the adhesion peripheral part 6c is along the to-be-sucked side bag wall 2 as shown in FIG. Even in the case of a simple shape, the ventilation portion 7 can be a region 2 a facing the air flow control guide 6 of the suction side bag wall 2. However, it is necessary that the part of the facing area 2a excluding the adhering area 6a includes the ventilation part 7 and the ventilation part 7 opens away from the air flow control guide 6 due to the suction from the outside to partially or entirely expand outward. It is.
換言すれば、被吸引側袋壁２の気流制御ガイド６との対向域２ａのほぼ全域が、気流制御ガイド６から離れる面外変形を伴い、袋外部からの吸引力が通気部７を通じて袋内に通じるように、浮きスペース４６を形成することが必要である。もっとも、気流制御ガイド６が通気部７を含んで、被吸引側袋壁２から図６の各例に示すように浮き上がる浮きスペース４６を形成する凹形状を気流制御ガイド６の側に持たせておけば、被吸引側袋壁２の面外変形なしでも通気が図れる。 In other words, almost the entire region 2 a facing the air flow control guide 6 of the suction side bag wall 2 is accompanied by out-of-plane deformation away from the air flow control guide 6, and the suction force from the outside of the bag is passed through the ventilation portion 7 into the bag. It is necessary to form the floating space 46 so as to lead to However, the airflow control guide 6 includes the ventilation portion 7, and a concave shape is formed on the airflow control guide 6 side to form a floating space 46 that floats as shown in each example of FIG. 6 from the suction side bag wall 2. If this is done, ventilation can be achieved even without out-of-plane deformation of the suction side bag wall 2.
気流制御ガイド６は、被吸引側袋壁２に対する通気抵抗増大を伴い、吸入風に対する所定の案内ができればよく、その材質や成形方法は特に問うものではない。例えば、プラスチックシートの真空成形といった熱成形は、各種立体形状に簡単かつ安価に製造できる。このようにして成形された気流制御ガイドは、ポリプロピレンなどの不織布よりなる集塵袋１００の被吸引側袋壁２に対し超音波溶着や熱溶着によって簡単に付着させることができる。もちろん、付着方法も特に問うものではなく、接着や縫合鋲止めなど他の方法によることもできる。 The airflow control guide 6 is not particularly limited as long as the airflow control guide 6 can increase the airflow resistance with respect to the suction side bag wall 2 and can provide a predetermined guide to the suction air. For example, thermoforming such as vacuum forming of a plastic sheet can be easily and inexpensively manufactured into various three-dimensional shapes. The airflow control guide formed in this way can be easily attached to the suction side bag wall 2 of the dust bag 100 made of a nonwoven fabric such as polypropylene by ultrasonic welding or heat welding. Of course, the attachment method is not particularly limited, and other methods such as adhesion and stitching can be used.
図１に示す例および、図６に示す各例では、気流制御ガイド６は、いずれも環状に形成した付着周辺部６ｃから立ちあがって気流制御ガイド面６ｄに繋がる立ち上がり周壁６ｅを持った真空成形による一次加工品を示している。具体的には、前記一次加工品は、トムソン加工による輪郭整形として、付着周辺部６ｃおよび立ち上がり周壁６ｅの付着域６ａに対応する範囲を除き、非付着域６ｂに対応する範囲を切除したものである。 In the example shown in FIG. 1 and each example shown in FIG. 6, the airflow control guide 6 is formed by vacuum forming having a rising peripheral wall 6e that rises from the adhering peripheral portion 6c formed in an annular shape and is connected to the airflow control guide surface 6d. The primary processed product is shown. Specifically, the primary processed product is obtained by cutting out a range corresponding to the non-adhesion area 6b except for a range corresponding to the adhesion area 6a of the adhesion peripheral portion 6c and the rising peripheral wall 6e as contour shaping by Thomson processing. is there.
このように形成した気流制御ガイドは、切除していない付着周辺部６ｃを被吸引側袋壁２に溶着することにより、付着周辺部６ｃおよび立ち上がり周壁６ｅが切除された範囲に対応する非付着域６ｂが、被吸引側袋壁２から浮き上がった通気部７を形成する。従って、被吸引側袋壁２の気流制御ガイド６との対向域２ａが、平坦面を維持するように吸引側から支持されても通気部７や浮きスペース４６が被吸引側袋壁２に密着することはない。つまり、対向域２ａの吸引側からの支持形態に通気性が確保されること以外既述のような特別な条件は不要となる。 The airflow control guide formed in this way is a non-adhesion zone corresponding to the range in which the adhering peripheral part 6c and the rising peripheral wall 6e are excised by welding the adhering peripheral part 6c that has not been excised to the suction side bag wall 2. 6b forms the ventilation part 7 which is lifted from the suction side bag wall 2. Therefore, even if the area 2 a facing the air flow control guide 6 of the suction side bag wall 2 is supported from the suction side so as to maintain a flat surface, the ventilation portion 7 and the floating space 46 are in close contact with the suction side bag wall 2. Never do. That is, the special conditions as described above are not necessary except that the air permeability is ensured in the support form from the suction side of the facing area 2a.
通気部７の被吸引側袋壁２からの浮き高さＨは、図１１に示す通気圧力損失の実験結果（ｃ）、図１２に示す風量低下率実験結果（ｃ）での数値データを近似してイレギュラーなデータを除外して見た傾向性から１ｍｍ〜３ｍｍ程度あれば好適である。しかし、１ｍｍ未満では通気部７を通じた通気抵抗が高く通気不足を招き、３ｍｍを超えると通気部７
を通じた通気が吸入風３の動圧による抜けを許して、対向域２ａの早期目詰まりの原因になってしまう。もっとも、浮きスペース４６の浮き高さは前記浮き高さＨ以上として問題がないし、被吸引側袋壁２の前記面外変形による浮き量を加算して満足すればよい。
The floating height H of the ventilation part 7 from the suction side bag wall 2 approximates the numerical data in the experimental result (c) of the ventilation pressure loss shown in FIG. 11 and the experimental result (c) of the air flow rate reduction rate shown in FIG. Therefore, it is preferable that the thickness is about 1 mm to 3 mm in view of the tendency seen by removing irregular data. However, if it is less than 1 mm, the ventilation resistance through the ventilation part 7 is high, resulting in insufficient ventilation.
Ventilation through the air allows the suction air 3 to escape due to the dynamic pressure, which causes early clogging of the facing area 2a. However, the floating height of the floating space 46 is no more than the floating height H, and there is no problem, and it may be satisfied by adding the floating amount due to the out-of-plane deformation of the suction side bag wall 2.
図１０に示す例の気流制御ガイド６は、平坦な付着周辺部６ｃから裏面側、つまりガイド面６ｄとは反対側から突出した脚リブ６ｆを被吸引側袋壁２の内面２ｂに付着させて、気流制御ガイド６と被吸引側袋壁２との間にできる浮きスペース４６を常に形成する。この浮きスペース４６は、気流制御ガイド６の側方において袋内に開放されており、通気部７を形成する。従って、被吸引側袋壁２の吸引のされ方にかかわらず閉じられることはない。このような脚リブ６ｆは、気流制御ガイド６のガイド面６ｄの形状に影響なく真空成形するのは困難で、脚リブ６ｆを後付けするか、樹脂材料をインジェクション成形するといった型成形が好適となる。このような脚リブ６ｆの突出量Ｈ１は、上記浮き高さＨの場合同様に１ｍｍ〜３ｍｍ程度が好適である。 The airflow control guide 6 in the example shown in FIG. 10 has leg ribs 6f protruding from the flat adhesion peripheral portion 6c on the back surface side, that is, from the opposite side to the guide surface 6d, to the inner surface 2b of the suction side bag wall 2. A floating space 46 is always formed between the airflow control guide 6 and the suction side bag wall 2. The floating space 46 is opened in the bag on the side of the airflow control guide 6, and forms a ventilation portion 7. Therefore, it is not closed regardless of how the suction side bag wall 2 is sucked. Such leg ribs 6f are difficult to be vacuum-formed without affecting the shape of the guide surface 6d of the airflow control guide 6, and mold molding such as retrofitting the leg ribs 6f or injection molding a resin material is suitable. . The protruding amount H1 of the leg rib 6f is preferably about 1 mm to 3 mm as in the case of the floating height H.
以上のような集塵袋１００を用いる図５に示すような電気掃除機２００は、図３に示すように、後部に電動送風機２１を内蔵した送風機室２２を、前部に塵埃３８を捕集する集塵袋１００を図４に開いて示す上部蓋２６の開閉を伴い着脱できるように収納する集塵室２３を配した掃除機本体３００を備えている。送風機室２２は、集塵室２３との仕切壁２２ａに電動送風機２１からの吸引を集塵室２３側に及ぼす吸引口２４が開口し、掃除機本体２００の後部に電動送風機２１からの送風を外部に排気する排気口８が開口している。 The vacuum cleaner 200 as shown in FIG. 5 using the dust bag 100 as described above, as shown in FIG. 3, collects the blower chamber 22 containing the electric blower 21 at the rear and dust 38 at the front. The vacuum cleaner main body 300 which provided the dust collection chamber 23 which accommodates so that it can attach or detach along with opening and closing of the upper cover 26 which opens and shows the dust bag 100 which opens is shown in FIG. In the blower chamber 22, a suction port 24 that applies suction from the electric blower 21 to the dust collection chamber 23 side opens in a partition wall 22 a with the dust collection chamber 23, and blows air from the electric blower 21 to the rear part of the cleaner body 200. An exhaust port 8 for exhausting to the outside is opened.
集塵室２３は、掃除機本体２００の前部に収納した集塵袋１００の吸入口１と繋がるホース接続口２５が開口し、送風機室２２の吸引口２４は、集塵室２３に収納した集塵袋１００の吸引側袋壁２に対向して位置し、集塵室２３は、吸引口２４からの吸引が収納した集塵袋１００の被吸引側袋壁２および側周袋壁４の外まわりに及ぶように収納する。 In the dust collection chamber 23, a hose connection port 25 connected to the suction port 1 of the dust bag 100 stored in the front part of the cleaner body 200 is opened, and the suction port 24 of the blower chamber 22 is stored in the dust collection chamber 23. The dust collection chamber 23 is located opposite to the suction side bag wall 2 of the dust collection bag 100, and the dust collection chamber 23 includes the suction side bag wall 2 and the side circumferential bag wall 4 of the dust collection bag 100 in which suction from the suction port 24 is stored. Store so that it extends around the outside.
この吸入口１とホース接続口２５との繋がりを確保するのに、集塵室２３の内面のホース接続口２５が開口している部分の両側に、吸入口１を有して集塵袋１００の吸入口側袋壁５に接着などして空気漏れのないよう固着ないしは貼合わせた厚手の口紙２８を上方から受け入れる口紙挿入部２９を有する。この口紙挿入部２９に口紙２８を上方から挿入することで、口紙２８がホース接続口２５の内側開口に設けたシール部材３１のシールリップ３１ａに圧着し、吸入口１がホース接続口２５に空気漏れのないように繋がる。なお、口紙２８の挿入状態は上部蓋２６の側の押さえ片３０によって上方から保持されるのに併せ、シールリップ３１ａの側に押圧もされて、上部の密着が甘くならないようにされている。 In order to secure the connection between the suction port 1 and the hose connection port 25, the dust collection bag 100 has the suction port 1 on both sides of the portion where the hose connection port 25 is open on the inner surface of the dust collection chamber 23. There is provided a paper insert portion 29 for receiving a thick paper 28 which is adhered or bonded to the air bag side bag wall 5 so as not to leak air from above. By inserting the cover 28 into the cover insertion portion 29 from above, the cover 28 is pressure-bonded to the seal lip 31a of the seal member 31 provided in the inner opening of the hose connection port 25, and the suction port 1 is the hose connection port. 25 is connected so that there is no air leak. In addition, the insertion state of the cover 28 is held from above by the pressing piece 30 on the upper lid 26 side, and is also pressed on the seal lip 31a side so that the close contact of the upper portion is not loosened. .
これにより、電動送風機２１が働くと、電動送風機２１は吸引口２４を通じた吸引を行い、排気口８に向い排気される送風を発生させる。このときの吸引口２４での吸引は、集塵室２３を通じ集塵袋１００の外まわりから吸入口１に及び、これに繋がるホース接続口２５、ホース接続口２５に接続パイプ３３を介し接続された図５に示すホース３２、ホース３２の先端に先端パイプ３４を介し接続された吸い込み具３５の図示しない吸い口に及ぶ。このとき、電気掃除機２００として、図５に示すように掃除機本体３００に接続した吸い込み具３５から家庭塵埃３８が外気に乗じて吸い込まれて吸入口１から集塵袋１００内に吸入される吸入風３が発生する。 Thus, when the electric blower 21 is activated, the electric blower 21 performs suction through the suction port 24 and generates air exhausted toward the exhaust port 8. At this time, the suction at the suction port 24 is extended from the outer periphery of the dust bag 100 to the suction port 1 through the dust collection chamber 23, and connected to the hose connection port 25 and the hose connection port 25 through the connection pipe 33. The hose 32 shown in FIG. 5, and the suction port (not shown) of the suction tool 35 connected to the tip of the hose 32 via the tip pipe 34. At this time, as the vacuum cleaner 200, household dust 38 is sucked into the outside air from the suction tool 35 connected to the cleaner body 300 as shown in FIG. 5 and is sucked into the dust bag 100 from the suction port 1. Suction wind 3 is generated.
この集塵袋１００内に吸入される吸入風３は、集塵袋１００の吸入口１に対向する被吸引側袋壁２、特に、この被吸引側袋壁２に設けられた気流制御ガイド６の部分に向かい、気流制御ガイド６が通気抵抗となって受け止められて、そのガイド面６ｄの形状に応じた中央部から側周袋壁４の側に分流される作用が確保され、既述した集塵率と、被吸引側袋壁２の目詰まり防止効果の向上が図れる。 The suction air 3 sucked into the dust collection bag 100 is a suction side bag wall 2 facing the suction port 1 of the dust collection bag 100, in particular, an air flow control guide 6 provided on the suction side bag wall 2. The air flow control guide 6 is received as a ventilation resistance, and the action of diverting from the central part according to the shape of the guide surface 6d to the side peripheral bag wall 4 side is secured. The dust collection rate and the effect of preventing clogging of the suction side bag wall 2 can be improved.
なお、吸入風３の吸入向きは、吸入口１から吸引口２４に向かう。本例では吸入口１よりも上側に寄って開口している吸引口２４に向く斜め上方への流れとなるので、この流れを受ける位置に気流制御ガイド６を配置している。もっとも、集塵袋１００の図１に示す折り畳み形態では、吸入口１と気流制御ガイド６との位置がほぼ同心に対応するようにしている。 The suction direction of the suction air 3 is from the suction port 1 to the suction port 24. In this example, since the flow is directed obliquely upward toward the suction port 24 that opens toward the upper side of the suction port 1, the airflow control guide 6 is disposed at a position to receive this flow. However, in the folded configuration shown in FIG. 1 of the dust bag 100, the positions of the suction port 1 and the airflow control guide 6 correspond to substantially concentric.
ここで、送風機室２２の吸引口２４は、吸入風３によって押し付けられる集塵袋１００の被吸引側袋壁２を、通気を損なわずに吸引側から支持する図３、図４に示す格子状などとした通気支持部２７を有している。そして、気流制御ガイド６以外が吸引口２４の範囲内で被吸引側袋壁２を不通気にしたり、通気抵抗増大部が形成されないようにしている。 Here, the suction port 24 of the blower chamber 22 has a lattice shape shown in FIGS. 3 and 4 that supports the suction side bag wall 2 of the dust collection bag 100 pressed by the suction air 3 from the suction side without impairing ventilation. A ventilation support portion 27 is provided. And, except the airflow control guide 6, the suction side bag wall 2 is not ventilated within the range of the suction port 24, and the ventilation resistance increasing portion is not formed.
併せて、集塵袋１００は、集塵室２３内で集塵袋１００の側周袋壁４の外まわり、特に、上部を優先して、ないしは左右や下部を含んで、集塵室２３との間に吸引通路４１を残すように上部蓋２６に設けたリブ４２などで外まわりから支持して収納するようにしている。 At the same time, the dust collection bag 100 has an outer periphery of the side circumferential bag wall 4 of the dust collection bag 100 in the dust collection chamber 23, in particular, giving priority to the upper part, or including the left and right and lower parts. In order to leave the suction passage 41 in between, the rib 42 provided on the upper lid 26 is supported and stored from the outside.
また、通気支持部２７は、集塵袋１００の被吸引側袋壁２の気流制御ガイド６との対向域２ａに必要な、面外変形（図７で説明を行った）を許容する格子目を利用した非支持部２７ａを有したものとしている。これにより、通気部７が気流制御ガイド６と被吸引側袋壁２との間で通常密着した状態になるように形成されたものであるのに対応できる。 Further, the ventilation support portion 27 is a lattice that allows the out-of-plane deformation (described in FIG. 7) necessary for the area 2 a facing the air flow control guide 6 of the suction-side bag wall 2 of the dust collection bag 100. It has a non-supporting part 27a using Thereby, it can respond to the ventilation part 7 being formed so that it may be in the state normally contact | adhered between the airflow control guide 6 and the to-be-sucked side bag wall 2. FIG.
もっとも、専用の製造ラインを構築するような場合は、まず、袋材１００ａ、１００ｂを切り取る長尺のシートを連続搬送しながら、搬送途中で、一方に吸入口１を持った口紙２８を一定のピッチで貼着するのに併せ、他方に気流制御ガイド６を前記貼着される口紙２８の吸入口１に対応して一定のピッチで付着させる。そして、これらの工程後に両長尺シートを吸入口１および気流制御ガイド６とが対向し合うように合わせてから、両長尺シートどうしを袋材１００ａ、１００ｂ単位の周辺での封止を行って連続した集塵袋１００を形成する。 However, when constructing a dedicated production line, first, while continuously transporting long sheets from which the bag materials 100a and 100b are cut, a paper 28 having a suction port 1 on one side is fixed during the transport. At the same time, the air flow control guide 6 is attached at a constant pitch corresponding to the suction port 1 of the sticker 28 to be attached. After these steps, the long sheets are aligned so that the suction port 1 and the airflow control guide 6 face each other, and then the long sheets are sealed around the bag material 100a and 100b. A continuous dust collection bag 100 is formed.
そして、最後に、連続に形成した各集塵袋１００を個々のものに裁断する、もしくは打ち抜いていくことでも効率よく製造することができる。この場合、気流制御ガイド６の正面形状や大きさが吸入口１との関係で制限されることはない。また、気流制御ガイド６の直径を吸入口１の直径と等しいかこれに近いものとすることで、吸入口１が気流制御ガイド６を後付けする場合の位置決め基準になるし、気流制御ガイド６との嵌め合せでそれを付着位置に位置決めすることができる。 Finally, each dust bag 100 formed continuously can be cut into individual ones, or can be efficiently manufactured by punching. In this case, the front shape and size of the airflow control guide 6 are not limited by the relationship with the suction port 1. Further, by making the diameter of the airflow control guide 6 equal to or close to the diameter of the suction port 1, the suction port 1 becomes a positioning reference when the airflow control guide 6 is retrofitted, and the airflow control guide 6 It can be positioned at the attachment position by fitting.
また、気流制御ガイド６は、ガイド面６ｄの通気性が、集塵袋１００、特にその被吸引側袋壁２の通気性を上回る度合に応じ向ってくる吸入風３に対する分流機能が高まる。また、立体形状で分流を図るガイド面６ｄであれば立体の連続性によって多少通気性があっても、吸入風３の動圧の向きを、通気を抑えながら変えやすい傾向を示す。従って、気流制御ガイド６は、プラスチック成形品に限らず組織の密な、あるいは厚みのある不織布材料など、被吸引側袋壁２よりも通気抵抗の高い材料からなるものでもよい。 Further, the airflow control guide 6 has a function of diverting to the intake air 3 that is directed to the extent that the air permeability of the guide surface 6d exceeds the air permeability of the dust collection bag 100, particularly the suction side bag wall 2 thereof. Moreover, even if there is some air permeability by steric continuity if guide surface 6d to achieve diversion by three-dimensional shape, the direction of the dynamic pressure of the inhalation air 3 shows the changing tendency while suppressing the ventilation. Therefore, the airflow control guide 6 may be made of a material having a higher airflow resistance than the suction side bag wall 2 such as a non-woven material having a dense structure or a thickness, not limited to a plastic molded product.
この意味で、集塵袋１００の被吸引側袋壁２を形成することになる袋材１００ｂの側を２層構造とし、その内側層の適所に部分的に通気抵抗を高め、あるいは不通気とした気流制御ガイド６を形成しておき、外側層に合わせて少なくとも気流制御ガイド６まわりを、外側層との間に分離部を残し、周辺付着部のうちの通気部７を残した付着域で接着や溶着などにて付着させてもよい。 In this sense, the side of the bag material 100b that will form the suction side bag wall 2 of the dust collection bag 100 has a two-layer structure, and the ventilation resistance is partially increased at an appropriate position of the inner layer, The airflow control guide 6 is formed, and at least around the airflow control guide 6 in accordance with the outer layer, leaving a separation part between the outer layer and the adhering region where the ventilation part 7 of the peripheral adhering part is left. It may be attached by adhesion or welding.
また、図６（ｆ）に示す例は、被吸引側袋壁２の外面に立体のガイド面６ｄを持った気流制御ガイド６を付着させて、被吸引側袋壁２の気流制御ガイド６との対向域２ａの通気性を確保する通気部７を気流制御ガイド６に形成している。この通気部７は、図示するように断面山形のガイド面６ｄにより支持してガイド面６ｄから被吸引側袋壁２を浮かせた浮きスペース４６を、気流制御ガイド６の裏面側となる吸引側に通じさせる切除部である。 In the example shown in FIG. 6F, an air flow control guide 6 having a three-dimensional guide surface 6d is attached to the outer surface of the suction side bag wall 2, and the air flow control guide 6 of the suction side bag wall 2 is The air flow control guide 6 is formed with a ventilation portion 7 that ensures the air permeability of the opposite area 2a. As shown in the figure, the ventilation portion 7 supports a floating space 46 that is supported by a guide surface 6d having a mountain-shaped cross section and lifts the suction side bag wall 2 from the guide surface 6d on the suction side that is the back side of the airflow control guide 6. This is the excision part to be communicated.
ここで、被吸引側袋壁２の対向域２ａはガイド面６ｄに先立って吸入風３を受ける。しかし、ガイド面６ｄによる支持によって、図６（ｆ）に示すように山形断面をなして気流制御ガイド６の付着周辺部６ｃに付着されている。そして、その山形断面形状によって吸入口１から向かってくる吸入風３の動圧を利用して被吸引側袋壁を山形断面に沿わせることで、静圧差で抜ける吸入風３および微塵とは別に、随伴する塵埃３８を随伴させたまま両側に分流させる。 Here, the opposed area 2a of the suction side bag wall 2 receives the intake air 3 prior to the guide surface 6d. However, the support by the guide surface 6d is attached to the attachment peripheral portion 6c of the airflow control guide 6 in a mountain-shaped cross section as shown in FIG. 6 (f). Then, by using the dynamic pressure of the suction air 3 coming from the suction port 1 by the chevron cross-sectional shape, the suction side bag wall is made to follow the chevron cross-section, so that it separates from the suction air 3 and fine dust that escapes due to the static pressure difference. Then, the accompanying dust 38 is diverted to both sides while being accompanied.
その後、分流された吸入風３は、被吸引側袋壁２に沿い吸入口側袋壁５に向かう反転気流３ａとなる。このようにして、集塵率と、被吸引側袋壁２の目詰まり防止効果と、を高める作用が得られ、被吸引側袋壁２内外での静圧差による対向域２ａから、対向域２ａおよび気流制御ガイド６間の浮きスペース４６、通気部７を通じた吸引口２４側への抜けが図れるので、気流制御ガイド６による通気抵抗の増大を抑制することができる。 Thereafter, the diverted suction air 3 becomes a reversal air flow 3 a along the suction side bag wall 2 and toward the suction port side bag wall 5. In this way, the effect of increasing the dust collection rate and the effect of preventing clogging of the suction side bag wall 2 can be obtained. From the opposing region 2a due to the static pressure difference inside and outside the suction side bag wall 2, the opposing region 2a Further, since the floating space 46 between the airflow control guide 6 and the suction port 24 through the ventilation portion 7 can be removed, an increase in ventilation resistance due to the airflow control guide 6 can be suppressed.
本発明は、電気掃除機の集塵袋での吸入口からこれに対向する被吸引側袋壁に向かう吸入風を分流し、吸入口側に反転させる気流制御ガイドの簡単な改良によって、集塵率と、被吸引側袋壁の目詰まり防止効果と、を低下させないで、気流制御ガイドによる通気性低下の問題を抑制することができる。 The present invention provides dust collection by a simple improvement of the airflow control guide that diverts the suction air from the suction port of the dust collection bag of the vacuum cleaner toward the suction side bag wall facing it and reverses it to the suction port side. It is possible to suppress the problem of reduced air permeability due to the airflow control guide without reducing the rate and the effect of preventing clogging of the suction side bag wall.
１ 吸入口
２ 被吸引側袋壁
２ａ 対向域
３ 吸入風
３ａ 反転気流
４ 側周袋壁
５ 吸入口側袋壁
６ 気流制御ガイド
６ａ 付着域
６ｂ 非付着域
６ｃ 付着周辺部
６ｄ ガイド面
６ｅ 立ち上がり周壁
６ｆ 脚リブ
６ｇ 凸部
６ｈ 尖鋭突部
６ｉ 山状突部
６ｊ 凹曲面
６ｎ 頂点部
７ 通気部
８ 排気口
２１ 電動送風機
２２ａ 仕切壁
２２ 送風機室
２３ 集塵室
２４ 吸引口
２５ ホース接続口
２７ 通気支持部
２７ａ 非支持部
２８ 口紙
２９ 口紙挿入部
３０ 押さえ片
３１ シール部材
４１ 吸引通路
４２ リブ
１００ 集塵袋
２００ 電気掃除機
３００ 掃除機本体
４００ 突出部
DESCRIPTION OF SYMBOLS 1 Suction port 2 Suction side bag wall 2a Opposite area 3 Suction air 3a Reversal air flow 4 Side peripheral bag wall 5 Suction side bag wall 6 Air flow control guide 6a Adhesion area 6b Non-adhesion area 6c Adhesion peripheral part 6d Guide surface 6e Rising peripheral wall 6f Leg rib 6g Protruding part 6h Sharp protruding part 6i Mountainous protruding part 6j Concave surface 6n Vertex part 7 Vent part 8 Exhaust port 21 Electric blower 22a Partition wall 22 Blower room 23 Dust collection chamber 24 Suction port 25 Hose connection port 27 Ventilation support Portion 27a Non-supporting portion 28 Paper 29 Paper insert 30 Pressing piece 31 Sealing member 41 Suction passage 42 Rib 100 Dust collection bag 200 Vacuum cleaner 300 Vacuum cleaner main body 400 Projection
Claims (6)
前記吸入口に対向する被吸引側袋壁と、
前記吸入口と前記被吸引側袋壁の間を形成する側周袋壁と、
前記吸入口に対向する被吸引側袋壁上に設けられ、前記吸入口から吸入される吸入風を前記側周袋壁に向け分流させ、前記側周袋壁に沿って前記吸入口側袋壁に向かう反転気流を生じさせる突出部を有する気流制御ガイドを備え、
前記突出部は、前記気流制御ガイドの中央部を一方向に横断する峰部を持ち、前記峰部からその両側根本部または周辺に向けた凹曲面を含んで低くなる山状突部とした電気掃除機用の集塵袋。 An inlet-side bag wall having an inlet;
A suction-side bag wall facing the suction port;
A side circumferential bag wall forming a space between the suction port and the suction side bag wall;
The suction-side bag wall is provided on the suction-side bag wall facing the suction port, diverts the suction air sucked from the suction port toward the side peripheral bag wall, and extends along the side peripheral bag wall. An airflow control guide having a protrusion that generates a reversal airflow toward
The projecting portion, the central portion of the airflow control guide having a ridge which traverses in one direction, and the lower becomes the mountain-like projections comprise a concave surface toward both sides of the base portion or the peripheral from said peak portion electrically Dust bag for vacuum cleaner.
前記吸入口に対向する被吸引側袋壁と、
前記吸入口と前記被吸引側袋壁の間を形成する側周袋壁と、
前記吸入口に対向する被吸引側袋壁上に設けられ、前記吸入口から吸入される吸入風を前記側周袋壁に向け分流させ、前記側周袋壁に沿って前記吸入口側袋壁に向かう反転気流を生じさせる突出部を有する気流制御ガイドを備え、
前記突出部は、前記気流制御ガイドの中央部に頂点部を有し、前記頂点部から根本部または周辺へ凹曲面を含んで低くなる富士山状突部とした電気掃除機用の集塵袋。 An inlet-side bag wall having an inlet;
A suction-side bag wall facing the suction port;
A side circumferential bag wall forming a space between the suction port and the suction side bag wall;
The suction-side bag wall is provided on the suction-side bag wall facing the suction port, diverts the suction air sucked from the suction port toward the side peripheral bag wall, and extends along the side peripheral bag wall. An airflow control guide having a protrusion that generates a reversal airflow toward
The protruding portion has an apex portion to the central portion of the air flow control guide, dust bag for a vacuum cleaner having a Fuji-like projections decreases comprise concave surface to the base portion or the peripheral from said apex portion.
前記集塵室は、収納した前記集塵袋の吸入口と繋がるホース接続口が開口し、
前記送風機室は、前記集塵室との仕切壁に吸引口が開口し、
前記送風機室の後部には、前記掃除機本体の後部につながる排気口が開口し、
前記集塵袋は、前記送風機室の吸引口からの吸引が前記集塵袋の被吸引側袋壁および側周袋壁の外まわりに及ぶように収納されたことを特徴とし、
前記送風機室の吸引口は、前記集塵室に収納された集塵袋の被吸引側袋壁を、通気を損なわずに吸引側から支持する通気支持部を有した電気掃除機。 It is a vacuum cleaner using the dust bag of any one of Claims 1-5, Comprising: The blower chamber which incorporated the electric blower in the rear part, and the dust bag which collects dust in the front part can be attached or detached. Equipped with a vacuum cleaner body with a dust collection chamber for storing
The dust collection chamber has an open hose connection port connected to the suction port of the stored dust bag,
The blower chamber has a suction opening in a partition wall with the dust collection chamber,
In the rear part of the blower chamber, an exhaust port connected to the rear part of the vacuum cleaner body opens,
The dust bag is housed so that the suction from the suction port of the blower chamber extends to the outer periphery of the suction side bag wall and the side peripheral bag wall of the dust bag,
The suction port of the blower chamber, the collection to be the suction side bag wall of dust chamber dust bag accommodated in, electric vacuum cleaner having a vent support unit for supporting the suction side without compromising ventilation.
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| JP2009203197A JP5468852B2 (en) | 2009-09-03 | 2009-09-03 | Dust collection bag for vacuum cleaner and electric vacuum cleaner using the same |
| CN2010102758769A CN102008268A (en) | 2009-09-03 | 2010-09-03 | Dust collection bag and electric dust collector with the same |
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| CN103961026A (en) * | 2014-04-23 | 2014-08-06 | 苏州科比电器有限公司 | Dust bag bracket of embedded dust collector |
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| JP5446693B2 (en) * | 2009-10-01 | 2014-03-19 | パナソニック株式会社 | Dust bag for vacuum cleaner and vacuum cleaner |
| JP6041968B2 (en) * | 2015-12-02 | 2016-12-14 | 株式会社三共 | Game machine |
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| JPS6013696B2 (en) * | 1977-12-29 | 1985-04-09 | ブラザー工業株式会社 | vacuum cleaner |
| JPS59178954U (en) * | 1983-05-18 | 1984-11-29 | 松下電器産業株式会社 | Vacuum cleaner paper bag device |
| JPS6034423A (en) * | 1983-08-04 | 1985-02-22 | 松下電器産業株式会社 | Dust collector of electric cleaner |
| JPH01310625A (en) * | 1988-06-09 | 1989-12-14 | Mitsubishi Electric Corp | Paper bag for electric cleaner |
| JP2002200016A (en) * | 2000-12-27 | 2002-07-16 | Toshiba Tec Corp | Vacuum cleaner |
| JP2002291663A (en) * | 2001-03-30 | 2002-10-08 | Toshiba Tec Corp | Vacuum cleaner |
| CN1279869C (en) * | 2002-04-28 | 2006-10-18 | 苏州金莱克清洁器具有限公司 | Speed reducing centrifugal duster for cleaner |
| KR20070067791A (en) * | 2005-12-23 | 2007-06-29 | 삼성전자주식회사 | Cyclonic cleaner |
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| CN103961026A (en) * | 2014-04-23 | 2014-08-06 | 苏州科比电器有限公司 | Dust bag bracket of embedded dust collector |
| CN103961026B (en) * | 2014-04-23 | 2016-04-06 | 苏州科比电器有限公司 | The dirt bag bracket of embedded dust catcher |
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