JP4309315B2

JP4309315B2 - Electric vacuum cleaner

Info

Publication number: JP4309315B2
Application number: JP2004188158A
Authority: JP
Inventors: 村田　　博光
Original assignee: Toshiba Corp; Toshiba Consumer Electronics Holdings Corp; Toshiba Home Appliances Corp
Current assignee: Toshiba Corp; Toshiba Lifestyle Products and Services Corp
Priority date: 2004-06-25
Filing date: 2004-06-25
Publication date: 2009-08-05
Anticipated expiration: 2024-06-25
Also published as: JP2006006632A

Description

本発明は、電動送風機の吸込側に連通する風路管を備えた電気掃除機に関する。 The present invention relates to a vacuum cleaner including an air duct that communicates with a suction side of an electric blower.

従来、この種の電気掃除機は、電動送風機を収容した掃除機本体を備えている。この掃除機本体には、床ブラシが電動送風機の吸込側に連通接続される。また、掃除機本体には、電動送風機の吸込側に連通する風路管すなわち延長管が設けられている。この延長管は、先端部に、着脱可能なブラシ体を備えている。このブラシ体は、延長管に連通接続される筒部と、この筒部の先端部に回動可能に設けられたブラシ部とを備えている。さらに、このブラシ体は、延長管から取り外され、所定の受け部に着脱可能に収納される。そして、このブラシ体の収納の際には、ブラシ部を筒部に対して回動させ、筒部を受け部に挿入して固定する。また、ブラシ体の使用の際には、ブラシ体を受け部から取り外し、ブラシ部を筒部に対して回動させた後、ブラシ体を延長管の先端部に接続する（例えば、特許文献１参照。）。
特開２００２−１７６２７号公報（第５−６頁、図１５） Conventionally, this type of vacuum cleaner includes a vacuum cleaner body that houses an electric blower. A floor brush is connected to the vacuum cleaner main body on the suction side of the electric blower. Moreover, the air cleaner pipe | tube, ie, an extension pipe | tube connected to the suction side of an electric blower is provided in the cleaner body. This extension pipe is provided with a detachable brush body at the tip. The brush body includes a cylindrical portion that is connected to the extension pipe and a brush portion that is rotatably provided at a distal end portion of the cylindrical portion. Further, the brush body is detached from the extension pipe and is detachably stored in a predetermined receiving portion. When the brush body is stored, the brush portion is rotated with respect to the cylindrical portion, and the cylindrical portion is inserted into the receiving portion and fixed. When using the brush body, after removing the brush body from the receiving portion and rotating the brush portion relative to the tube portion, the brush body is connected to the distal end portion of the extension pipe (for example, Patent Document 1). reference.).
Japanese Patent Laid-Open No. 2002-17627 (page 5-6, FIG. 15)

しかしながら、上述の電気掃除機では、ブラシ体の収納および使用の際に、作業者がブラシ部に手で触らなければならず、使い勝手が良好でないという問題点を有している。 However, the above-described electric vacuum cleaner has a problem that when the brush body is stored and used, an operator must touch the brush portion with his / her hand and the usability is not good.

本発明は、このような点に鑑みなされたもので、使い勝手を向上した電気掃除機を提供することを目的とする。 This invention is made | formed in view of such a point, and it aims at providing the vacuum cleaner which improved usability.

本発明は、電動送風機の吸込側に連通する風路管の上流側端部にこの風路管に沿って摺動可能に設けられ、風路管の上流側に向けて付勢された吸込口部と、掃除機本体と風路管との少なくともいずれか一方に設けられ、掃除機本体に風路管を保持可能とする保持手段と、吸込口体に連通する連通口および吸込口部に当接する当接部を備え、掃除機本体に設けられた受け部とを具備し、風路管が保持手段にて掃除機本体に保持される際に、吸込口部が当接部に当接して風路管に沿って相対的に摺動することで風路管の上流側端部が吸込口部から突出して連通口に連通するものである。 The present invention is provided at the upstream end of the air duct connected to the suction side of the electric blower so as to be slidable along the air duct and is urged toward the upstream side of the air duct Is provided on at least one of the vacuum cleaner main body and the air duct, and holds the air duct on the vacuum cleaner main body, the communication port communicating with the suction port body, and the suction port. A suction portion that is in contact with the contact portion when the air duct is held by the cleaner body by the holding means. By sliding relatively along the air duct, the upstream end of the air duct protrudes from the suction port and communicates with the communication port.

本発明によれば、風路管を掃除機本体に保持する際には、吸込口部が当接部に当接して風路管に沿って相対的に摺動して風路管の上流側端部が吸込口から突出して連通口に連通し、風路管の保持状態を解除する際には、吸込口部が風路管の上流側に向けて付勢されて風路管の上流側端部に装着されるので、吸込口部に作業者が触れることなく風路管を掃除機本体に保持したり、この保持状態を解除して吸込口部を風路管の上流側端部に装着したりでき、使い勝手を向上できる。 According to the present invention, when the air duct is held in the vacuum cleaner body, the suction port is in contact with the abutting portion and relatively slides along the air duct and the upstream side of the air duct When the end part protrudes from the suction port and communicates with the communication port to release the holding state of the air duct, the suction inlet is urged toward the upstream side of the air duct and the upstream side of the air duct Since it is attached to the end, the air duct is held in the vacuum cleaner body without the operator touching the inlet, or this holding state is released and the inlet is connected to the upstream end of the air duct. It can be installed, improving usability.

以下、本発明の一実施の形態の電気掃除機の構成を図１ないし図６を参照して説明する。 Hereinafter, the configuration of a vacuum cleaner according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6.

図６において、１はアップライト型の電気掃除機で、この電気掃除機１は、上下方向に沿って長手状の掃除機本体２を備えており、この掃除機本体２には、下側に電動送風機３が収容され、この電動送風機３の上方に、集塵部４が設けられている。さらに、この掃除機本体２は、集塵部４の上流側すなわち吸込側に連通するホース体５が後側の上部に接続され、このホース体５の吸込側である先端部には、円筒状の接続管部６、握り管部７およびパイプ状の風路管としての延長管８が順次連通接続されている。またさらに、この延長管８の吸込側である先端部は、掃除機本体２の後側下部に設けられた筒状の受け部９の上端部に着脱可能に挿入される。そして、受け部９の下端部には、吸込口体としての床ブラシ11の下流側すなわち排気側である基端部が連通接続されている。 In FIG. 6, reference numeral 1 denotes an upright type vacuum cleaner, and the vacuum cleaner 1 includes a vacuum cleaner body 2 that is elongated along the vertical direction. The electric blower 3 is accommodated, and the dust collecting unit 4 is provided above the electric blower 3. Further, the vacuum cleaner main body 2 has a hose body 5 communicating with the upstream side of the dust collecting part 4, that is, the suction side, connected to the upper part on the rear side. The connecting pipe 6, the grip pipe 7, and the extension pipe 8 as a pipe-like air passage pipe are connected in series. Still further, the distal end portion on the suction side of the extension pipe 8 is detachably inserted into the upper end portion of the cylindrical receiving portion 9 provided at the lower rear side of the cleaner body 2. And the base end part which is the downstream of the floor brush 11 as an inlet port, ie, the exhaust side, is connected to the lower end part of the receiving part 9 in communication.

掃除機本体２は、電気掃除機１を持ち運び可能にする円弧状の取手部12が上端部に設けられている。また、この掃除機本体２の後側の上部には、図４に示すように、延長管８が抜け止め固定される延長管固定部13が設けられている。さらに、掃除機本体２の後部には、電動送風機３の排気側に連通する長孔状の複数の排気孔14が穿設されている。 The vacuum cleaner body 2 is provided with an arc-shaped handle portion 12 at the upper end portion that enables the vacuum cleaner 1 to be carried. Further, as shown in FIG. 4, an extension pipe fixing portion 13 to which the extension pipe 8 is fixed is provided at the upper part on the rear side of the cleaner body 2. Further, a plurality of elongated exhaust holes 14 communicating with the exhaust side of the electric blower 3 are formed in the rear part of the cleaner body 2.

延長管固定部13は、掃除機本体２の後端部に切り欠き形成された四角形状の空間部である嵌合凹部16を備えている。また、この嵌合凹部16内には、嵌合突出部17が上方に向けて突設されている。 The extension pipe fixing part 13 includes a fitting concave part 16 that is a rectangular space part that is notched at the rear end part of the cleaner body 2. Further, a fitting protrusion 17 is provided in the fitting recess 16 so as to protrude upward.

また、嵌合凹部16の前側に位置した部分には、四角形状の空間部であるクランプ嵌合部18が切り欠き形成されている。このクランプ嵌合部18には、操作クランプ19が嵌合している。この操作クランプ19は、上方に突出した操作ボタン19aと、嵌合突出部17の前側にて嵌合凹部16内に突出した図示しない係合部とを備えている。 In addition, a clamp fitting portion 18 that is a quadrangular space is cut out in a portion located on the front side of the fitting recess 16. An operation clamp 19 is fitted to the clamp fitting portion 18. The operation clamp 19 includes an operation button 19a protruding upward, and an engagement portion (not shown) protruding into the fitting recess 16 on the front side of the fitting protrusion 17.

操作ボタン19aは、図示しないばねなどにより後方向に付勢された状態で前後方向に進退可能となっている。そして、係合部は、操作ボタン19aの前後方向の進退に連動して前後方向に進退する。 The operation button 19a can be advanced and retracted in the front-rear direction while being urged rearward by a spring (not shown) or the like. The engaging portion advances and retracts in the front-rear direction in conjunction with the forward and backward movement of the operation button 19a.

さらに、掃除機本体２の後部には、掃除機本体２の長手方向に沿って嵌合円弧部21が切り欠き形成されている。この嵌合円弧部21は、延長管固定部13の下部から受け部９へと連続して直線状に形成され、延長管８の外形形状に略沿って平面視で半円凹弧状となっている。 Further, a fitting arc portion 21 is cut out at the rear portion of the cleaner body 2 along the longitudinal direction of the cleaner body 2. This fitting arc part 21 is formed in a straight line continuously from the lower part of the extension pipe fixing part 13 to the receiving part 9, and becomes a semicircular concave arc shape in plan view substantially along the outer shape of the extension pipe 8. Yes.

電動送風機３は、図６に示すように、吸込側を上側に向けた状態で掃除機本体２内に収容されている。また、この電動送風機３は、吸込側が集塵部４に気密に連結されている。さらに、この電動送風機３は、図３に示すように、掃除機本体２の後部に回転可能に設けられたコードリール22に引き出しおよび巻き取り可能に巻回された電源コード24を介して、図示しない外部電源から供給される電力で駆動される。 As shown in FIG. 6, the electric blower 3 is accommodated in the cleaner body 2 with the suction side facing upward. Further, the electric blower 3 is airtightly connected to the dust collecting portion 4 on the suction side. Further, as shown in FIG. 3, the electric blower 3 is illustrated via a power cord 24 that is wound around a cord reel 22 that is rotatably provided at the rear portion of the cleaner body 2 so as to be drawn out and wound up. Not driven by power supplied from an external power source.

ここで、電源コード24は、掃除機本体２の後側の上下方向の中心域に設けられたコード口25から先端部が掃除機本体２の外部に導出され、掃除機本体２の外部へと引き出し可能となっている。 Here, the power cord 24 is led to the outside of the cleaner body 2 from the cord port 25 provided in the center area in the vertical direction on the rear side of the cleaner body 2, and is connected to the outside of the cleaner body 2. It can be withdrawn.

集塵部４は、図６に示すように、排気側である下端部が電動送風機３の吸込側に気密に連結されているとともに、吸込側である上端部がホース体５の排気側である基端部に気密に連結されている。この集塵部４は、例えば電動送風機３の駆動により床ブラシ11などから空気とともに吸い込まれた塵埃に直進方向の慣性力を与えて空気から分離して捕集するものである。 As shown in FIG. 6, the dust collector 4 has a lower end that is the exhaust side airtightly connected to the suction side of the electric blower 3, and an upper end that is the suction side is the exhaust side of the hose body 5. Airtightly connected to the proximal end. The dust collecting unit 4 separates and collects the dust sucked together with the air from the floor brush 11 or the like by driving the electric blower 3 so as to separate the air from the air.

ホース体５は、可撓性を有する合成樹脂などで細長い蛇腹円筒状に設けられ、軸方向へと伸縮可能に設けられている。 The hose body 5 is provided in an elongated bellows-cylindrical shape with a synthetic resin having flexibility, and is provided so as to be expandable and contractable in the axial direction.

接続管部６は、ホース体５よりも硬質の合成樹脂などで円筒状に形成され、ホース体５と同軸状に設けられてこのホース体５の先端部に連通している。また、この接続管部６は、握り管部７の排気側である基端部に着脱可能に連通接続される。 The connecting pipe portion 6 is formed in a cylindrical shape with a synthetic resin harder than the hose body 5, is provided coaxially with the hose body 5, and communicates with the distal end portion of the hose body 5. Further, the connecting pipe portion 6 is detachably connected to a proximal end portion on the exhaust side of the grip pipe portion 7.

握り管部７は、接続管部６の吸込側である先端部および延長管８の排気側である基端部にそれぞれ連通する略円筒状の本体部41と、この本体部41から径方向に突出した把持部42とを備えている。この把持部42は、本体部41の先端側の外側面から突出し、本体部41の基端側へと屈曲されている。また、この把持部42には、電動送風機３を所定の駆動モードで駆動させる図示しない複数の設定ボタンが設けられている。 The grip tube portion 7 includes a substantially cylindrical main body portion 41 communicating with a distal end portion on the suction side of the connection tube portion 6 and a proximal end portion on the exhaust side of the extension tube 8, and a radial direction from the main body portion 41. And a protruding gripping portion 42. The grip portion 42 protrudes from the outer surface on the distal end side of the main body portion 41 and is bent toward the proximal end side of the main body portion 41. Further, the grip portion 42 is provided with a plurality of setting buttons (not shown) for driving the electric blower 3 in a predetermined drive mode.

延長管８は、掃除機本体２に保持された状態で電気掃除機１を作業者が操作可能にするアームであるとともに、掃除機本体２からの保持状態を解除した状態で延長管として作用するもので、例えばアルミニウムなどの金属で細長円筒状すなわち長手状に形成されている。そして、この延長管８は、握り管部７、接続管部６、ホース体５および集塵部４を介して電動送風機３の吸込側に連通するとともに、受け部９に取り付けられた状態で電動送風機３の吸込側と床ブラシ11の排気側とにそれぞれ連通する風路を形成する。 The extension pipe 8 is an arm that allows the operator to operate the electric vacuum cleaner 1 while being held by the cleaner body 2, and acts as an extension pipe when the holding state from the cleaner body 2 is released. For example, it is formed in an elongated cylindrical shape, that is, a longitudinal shape with a metal such as aluminum. The extension pipe 8 communicates with the suction side of the electric blower 3 through the grip pipe section 7, the connection pipe section 6, the hose body 5 and the dust collection section 4, and is electrically connected to the receiving section 9. Air paths communicating with the suction side of the blower 3 and the exhaust side of the floor brush 11 are formed.

また、この延長管８の軸方向の中間部には、図３ないし図６に示すように、この延長管８を掃除機本体２の延長管固定部13に対して着脱可能に固定する略筒状の固定部45が同軸状に一体的に設けられている。そして、固定部45と延長管固定部13とで、延長管８を掃除機本体２に対して抜け止めして保持する保持手段としてのロック部46が構成されている。また、この延長管８の上流側端部である先端部の外周面には、図１ないし図３に示すように、吸込口部47が延長管８に沿って摺動可能に設けられている。さらに、延長管８の先端部には、吸込口部47に挿通される筒状の挿通部材48が一体に設けられている。 Further, as shown in FIG. 3 to FIG. 6, a substantially cylinder that detachably fixes the extension pipe 8 to the extension pipe fixing portion 13 of the cleaner body 2 is provided at an intermediate portion in the axial direction of the extension pipe 8. A fixed portion 45 is integrally provided coaxially. The fixing portion 45 and the extension tube fixing portion 13 constitute a lock portion 46 as a holding means for preventing the extension tube 8 from being detached from the cleaner body 2 and holding it. Further, as shown in FIGS. 1 to 3, a suction port portion 47 is slidably provided along the extension tube 8 on the outer peripheral surface of the tip portion which is the upstream end portion of the extension tube 8. . Further, a cylindrical insertion member 48 that is inserted through the suction port 47 is integrally provided at the distal end of the extension pipe 8.

固定部45は、例えば硬質の合成樹脂などで成形され、円筒状の固定部本体51を備え、この固定部本体51の下端部の前部には、嵌合凹部16に略隙間なく嵌合して延長管８を掃除機本体２に対して回り止めして固定する固定係合部52が突設されている。そして、この固定部45は、延長管８を伸縮させる機能も兼ねている。 The fixing portion 45 is formed of, for example, a hard synthetic resin, and includes a cylindrical fixing portion main body 51. The fixing portion main body 51 is fitted into the fitting recess 16 with almost no gap at the front portion of the lower end portion thereof. Thus, a fixed engagement portion 52 is provided so as to prevent the extension pipe 8 from rotating with respect to the cleaner body 2 and fix it. And this fixing | fixed part 45 also has the function to expand / contract the extension pipe | tube 8. As shown in FIG.

固定係合部52は、嵌合凹部16に嵌合した状態で嵌合突出部17が嵌合する図示しないアーム側嵌合凹部が下端側に開口形成されている。また、この固定係合部52の前部には、操作クランプ19の係合部が係合可能な図示しない係合孔部が穿設されている。そして、固定部45は、操作クランプ19の操作により係合部が係合孔部に係脱されることで、掃除機本体２に対して着脱可能となる。 In the fixed engagement portion 52, an arm-side fitting recess (not shown) into which the fitting protrusion 17 is fitted in the state of being fitted into the fitting recess 16 is formed on the lower end side. In addition, an engagement hole portion (not shown) that can engage the engagement portion of the operation clamp 19 is formed in the front portion of the fixed engagement portion 52. And the fixing | fixed part 45 becomes attachable / detachable with respect to the cleaner body 2 because an engaging part is engaged / disengaged by the engagement hole part by operation of the operation clamp 19. FIG.

一方、吸込口部47は、図１および図２に示すように、例えば硬質の合成樹脂などで筒状に成形されたカバー体としての先端カバー61と、この先端カバー61に回動可能に設けられたブラシ部としての丸ブラシ部62と、先端カバー61を延長管８の先端部に向けて付勢する付勢部材としての圧縮ばね63とを備えている。そして、この吸込口部47は、延長管８を掃除機本体２に保持した状態で受け部９の上端部に固定されるものである。 On the other hand, as shown in FIG. 1 and FIG. 2, the suction port portion 47 is provided with a front end cover 61 as a cover body formed in a cylindrical shape with, for example, hard synthetic resin, and the front end cover 61 is rotatably provided. A round brush portion 62 serving as the brush portion and a compression spring 63 serving as a biasing member that biases the tip cover 61 toward the tip portion of the extension pipe 8 are provided. And this suction inlet part 47 is fixed to the upper end part of the receiving part 9 in the state which hold | maintained the extension pipe 8 in the cleaner body 2. As shown in FIG.

先端カバー61は、圧縮ばね63を内部に収容した略円筒状の上側収容部65と、この上側収容部65から下方に突設された筒状の連結部66とを有している。 The front end cover 61 has a substantially cylindrical upper accommodating portion 65 that accommodates the compression spring 63 therein, and a cylindrical connecting portion 66 that projects downward from the upper accommodating portion 65.

上側収容部65は、延長管８を挿通可能な挿通孔71が上端部に穿設され、連結部66に連通する連通孔72が下端部に穿設されている。 In the upper accommodating portion 65, an insertion hole 71 through which the extension tube 8 can be inserted is formed in the upper end portion, and a communication hole 72 communicating with the connection portion 66 is formed in the lower end portion.

挿通孔71および連通孔72は、それぞれ延長管８の外径寸法よりも大きい内径寸法を有し、かつ、挿通部材48の基端部の外周面にフランジ状に突設されたフランジ部73よりも小さい内径寸法を有している。このため、吸込口部47は、延長管８に対して、上側収容部65内の上下寸法と略等しい寸法分、摺動可能となっている。 Each of the insertion hole 71 and the communication hole 72 has an inner diameter dimension larger than the outer diameter dimension of the extension pipe 8, and a flange portion 73 projecting in a flange shape on the outer peripheral surface of the proximal end portion of the insertion member 48. Also have a small inner diameter. For this reason, the suction port portion 47 is slidable with respect to the extension pipe 8 by a dimension substantially equal to the vertical dimension in the upper accommodating portion 65.

また、連通孔72の外周縁部には、圧縮ばね63が載置された段部74が設けられ、この段部74とフランジ部73との間に圧縮ばね63が収容されている。さらに、この段部74とフランジ部73との距離寸法は、圧縮ばね63の全長よりも小さく形成されている。この結果、圧縮ばね63は、吸込口部47を延長管８の先端部に向けて付勢するとともに、延長管８に対する吸込口部47の相対的な摺動に伴い伸縮される。 Further, a stepped portion 74 on which the compression spring 63 is placed is provided at the outer peripheral edge portion of the communication hole 72, and the compression spring 63 is accommodated between the stepped portion 74 and the flange portion 73. Further, the distance dimension between the stepped portion 74 and the flange portion 73 is formed to be smaller than the total length of the compression spring 63. As a result, the compression spring 63 urges the suction port portion 47 toward the distal end portion of the extension tube 8 and expands and contracts as the suction port portion 47 slides relative to the extension tube 8.

連結部66は、図２に示すように、両側部が、丸ブラシ部62を回動可能に軸支する回動軸75に軸支され、図１に示す左側が、回動軸75を中心とする円弧面状に形成されている。さらに、この連結部66は、丸ブラシ部62の内部に連通する下端部連通孔76が下端部に穿設されている。この下端部連通孔76には、延長管８の先端部である挿通部材48の先端部が挿通されて下方に突出している。 As shown in FIG. 2, the connecting portion 66 is supported at both sides by a turning shaft 75 that pivotally supports the round brush portion 62, and the left side shown in FIG. It is formed in the shape of a circular arc surface. Further, the connecting portion 66 is formed with a lower end communication hole 76 communicating with the inside of the round brush portion 62 in the lower end portion. In the lower end communication hole 76, the distal end portion of the insertion member 48, which is the distal end portion of the extension pipe 8, is inserted and protrudes downward.

なお、この挿通部材48の先端部は、延長管８の保持状態で吸込口部47の丸ブラシ部62よりも下方に突出し、延長管８の保持状態を解除した状態、すなわち延長管８の使用状態では、丸ブラシ部62の内部に収納される。 Note that the distal end portion of the insertion member 48 protrudes below the round brush portion 62 of the suction port portion 47 in a state where the extension tube 8 is held, and the extension tube 8 is released from the holding state, that is, the extension tube 8 is used. In the state, it is housed inside the round brush portion 62.

丸ブラシ部62は、図１に示す左右方向に長軸方向を有する平面視細長円形状のブラシ本体81と、このブラシ本体81の先端部に植毛された複数のブラシ毛82とを有している。 The round brush portion 62 includes a brush body 81 having an elongated oval shape in plan view having a major axis direction in the left-right direction shown in FIG. 1 and a plurality of brush hairs 82 planted at the tip of the brush body 81. Yes.

ブラシ本体81は、連結部66が挿入される連結孔83が上端部に形成されるとともに、延長管８を掃除機本体２から取り外した状態での吸込口となるブラシ吸込口84が下端部に開口形成された筒状に形成され、上側から下側へと拡開している。また、このブラシ本体81は、回動軸75が連結孔83の内周縁部近傍に突設された側板部85が両側部の上部にそれぞれ設けられている。 The brush body 81 has a connecting hole 83 into which the connecting portion 66 is inserted at the upper end portion, and a brush suction port 84 that serves as a suction port when the extension pipe 8 is removed from the cleaner body 2 at the lower end portion. It is formed in a cylindrical shape with an opening, and expands from the upper side to the lower side. Further, the brush body 81 is provided with a side plate portion 85 having a rotation shaft 75 projecting in the vicinity of the inner peripheral edge portion of the connection hole 83 at the upper portion of both side portions.

さらに、ブラシ吸込口84の外周縁部には、当接フランジ部86が全周に亘ってフランジ状に突設されている。この当接フランジ部86は、下端部が略面一に形成されており、延長管８を掃除機本体２に保持状態とした際に、受け部９の一部に当接して吸込口部47を掃除機本体２に対して固定するものである。 Further, a contact flange 86 is provided on the outer peripheral edge of the brush suction port 84 so as to protrude in a flange shape over the entire circumference. The abutting flange portion 86 has a lower end portion that is substantially flush with the suction pipe portion 47 and abuts against a part of the receiving portion 9 when the extension pipe 8 is held in the cleaner body 2. Is fixed to the cleaner body 2.

そして、ブラシ毛82は、掃除の際に被掃除面の塵埃を掻き出すもので、可撓性を有する合成樹脂などで成形されており、当接フランジ部86の下端面から突設されている。これらブラシ毛82は、複数本ずつ略円柱状に束ねられ、当接フランジ部86全体に略等間隔に離間されてそれぞれ植毛されている。さらに、これらブラシ毛82は、当接フランジ部86の下端面の外周縁部よりも若干内側に位置している。 The brush bristles 82 scrape out dust on the surface to be cleaned during cleaning, and are formed of a flexible synthetic resin or the like, and project from the lower end surface of the contact flange portion 86. A plurality of these bristles 82 are bundled in a substantially cylindrical shape, and are implanted into the entire contact flange portion 86 at substantially equal intervals. Further, these bristles 82 are located slightly inside the outer peripheral edge portion of the lower end surface of the contact flange portion 86.

また、受け部９は、掃除機本体２の後部に設けられた凹状の空間部であり、吸込口部47の当接フランジ部86の下端部が当接する当接部としての当接平面部91が上端部に形成され、この当接平面部91から下方に連続して収容凹部92が形成されている。 The receiving portion 9 is a concave space provided at the rear portion of the cleaner body 2, and a contact flat portion 91 as a contact portion with which the lower end portion of the contact flange portion 86 of the suction port portion 47 contacts. Is formed in the upper end portion, and an accommodation recess 92 is formed continuously downward from the abutting flat surface portion 91.

当接平面部91は、当接フランジ部86の下端面の外周縁部全体が当接するもので、平面視で略細長円形状に形成され、受け部９の中心側に向けて平面状に突設されている。 The abutting flat surface portion 91 abuts the entire outer peripheral edge of the lower end surface of the abutting flange portion 86, is formed in a substantially elongated circular shape in plan view, and projects in a flat shape toward the center side of the receiving portion 9. It is installed.

収容凹部92は、当接平面部91の内周縁部から下方へと略垂直に延設された側壁部93と、この側壁部93の下端部から略水平に延設された底面部94とを有している。 The housing recess 92 includes a side wall 93 extending substantially vertically downward from the inner peripheral edge of the contact flat surface portion 91, and a bottom surface 94 extending substantially horizontally from the lower end of the side wall 93. Have.

側壁部93は、受け部９の内周を区画するもので、当接平面部91の全周に亘って形成されている。そして、この側壁部93は、上下方向の寸法がブラシ毛82の突出寸法よりも大きく形成されている。このため、吸込口部47を受け部９に固定した状態でブラシ毛82が底面部94に当接しない。 The side wall portion 93 defines the inner periphery of the receiving portion 9 and is formed over the entire periphery of the contact flat surface portion 91. The side wall 93 is formed such that the vertical dimension is larger than the protruding dimension of the brush bristles 82. For this reason, the bristle 82 does not contact the bottom surface portion 94 in a state where the suction port portion 47 is fixed to the receiving portion 9.

底面部94は、側壁部93の全周の下端部から受け部９の中心側へと平面状に形成され、受け部９の底部を区画している。また、この底面部94には、床ブラシ11の吸込側に連通する連通口95が穿設されている。さらに、連通口95の上部には、環状のシールパッキン96が同軸状に取り付けられている。 The bottom surface portion 94 is formed in a planar shape from the lower end portion of the entire circumference of the side wall portion 93 to the center side of the receiving portion 9, and defines the bottom portion of the receiving portion 9. Further, a communication port 95 communicating with the suction side of the floor brush 11 is formed in the bottom surface portion 94. Further, an annular seal packing 96 is coaxially attached to the upper part of the communication port 95.

そして、底面部94から延長管固定部13の嵌合凹部16の底部までの距離は、固定部45の固定係合部52の下端部から挿通部材48の先端部までの距離と略等しくなっている。このため、シールパッキン96には、延長管８を掃除機本体２に保持した状態で挿通部材48の先端部が気密に当接可能となっている。 The distance from the bottom surface portion 94 to the bottom portion of the fitting recess 16 of the extension tube fixing portion 13 is substantially equal to the distance from the lower end portion of the fixing engagement portion 52 of the fixing portion 45 to the distal end portion of the insertion member 48. Yes. For this reason, the tip end portion of the insertion member 48 can come into airtight contact with the seal packing 96 in a state where the extension pipe 8 is held in the cleaner body 2.

さらに、床ブラシ11は、図６に示すように、掃除機本体２の下方に設けられ、被掃除面としての床面に載置されて電気掃除機１を支持するもので、延長管８を受け部９の上端部に挿入した状態で、受け部９を介して延長管８の先端部に連通する。 Further, as shown in FIG. 6, the floor brush 11 is provided below the cleaner body 2 and is placed on the floor surface as a surface to be cleaned to support the vacuum cleaner 1. In the state inserted in the upper end part of the receiving part 9, it communicates with the front-end | tip part of the extension pipe | tube 8 through the receiving part 9. FIG.

また、この床ブラシ11は、床面に対向する下部に図示しない吸込口が開口形成された中空な横長のケース体97を備えている。このケース体97の後部には、吸込口に連通する図示しない連通管が回動可能に突設され、この連通管が受け部９の下端部に挿入されて連通口95に気密に連結される。 Further, the floor brush 11 includes a hollow horizontally long case body 97 having a suction port (not shown) formed in the lower portion facing the floor surface. A communication pipe (not shown) that communicates with the suction port is rotatably provided at the rear portion of the case body 97, and the communication pipe is inserted into the lower end portion of the receiving portion 9 and is airtightly connected to the communication port 95. .

さらに、床ブラシ11の後部の両側部には、ブラシ従動輪98が回転自在にそれぞれ設けられている。これらブラシ従動輪98により、電気掃除機１が床面を前後に走行可能となっている。 Further, brush driven wheels 98 are rotatably provided on both side portions of the rear portion of the floor brush 11, respectively. These brush driven wheels 98 allow the vacuum cleaner 1 to travel back and forth on the floor surface.

次に、上記一実施の形態の作用を説明する。 Next, the operation of the above embodiment will be described.

まず、通常の掃除の際には、延長管８を掃除機本体２に保持して収納する。 First, during normal cleaning, the extension pipe 8 is held and stored in the cleaner body 2.

すなわち、作業者が把持部42を把持し、図１(a)および図５(a)に示すように、掃除機本体２の後部にて吸込口部47の当接フランジ部86の下端面を受け部９の当接平面部91の上部に当接させた後、図５(b)に示すように、把持部42を掃除機本体２側へと倒すようにして延長管８を嵌合円弧部21に嵌合させ、図５(c)に示すように、固定部45の固定係合部52を延長管固定部13に上方から下方に押し込む。 That is, the operator grips the grip portion 42, and as shown in FIGS. 1 (a) and 5 (a), the lower end surface of the contact flange portion 86 of the suction port portion 47 is formed at the rear portion of the cleaner body 2. After abutting on the upper part of the abutting flat surface portion 91 of the receiving portion 9, as shown in FIG. 5 (b), the extension tube 8 is fitted into the arc so that the grip portion 42 is tilted toward the cleaner body 2 side. As shown in FIG. 5 (c), the fixed engagement portion 52 of the fixing portion 45 is pushed into the extension pipe fixing portion 13 from above to below as shown in FIG.

すると、固定係合部52が嵌合凹部16の操作クランプ19の係合部を前方へと押し込みながら下方へと移動し、固定係合部52の係合孔部が係合部に対向すると、係合部が弾性復帰して突出して係合孔部に係合し、固定部45が延長管固定部13に固定されて延長管８がロック部46により掃除機本体２に保持される。 Then, the fixed engagement portion 52 moves downward while pushing the engagement portion of the operation clamp 19 of the fitting recess 16 forward, and when the engagement hole portion of the fixed engagement portion 52 faces the engagement portion, The engaging portion is elastically restored and protrudes to engage with the engaging hole portion, the fixing portion 45 is fixed to the extension tube fixing portion 13, and the extension tube 8 is held in the cleaner body 2 by the lock portion 46.

このとき、図１(a)および図１(b)に示すように、受け部９に固定された吸込口部47に対して延長管８の先端部である挿通部材48の先端部が、圧縮ばね63の付勢力に抗して相対的に下方に摺動して吸込口部47のブラシ吸込口84からブラシ毛82の下方まで突出し、シールパッキン96に押圧されて気密に当接し、延長管８の先端部が連通口95に連通する。 At this time, as shown in FIGS. 1 (a) and 1 (b), the distal end portion of the insertion member 48, which is the distal end portion of the extension pipe 8, is compressed with respect to the suction port portion 47 fixed to the receiving portion 9. It slides relatively downward against the urging force of the spring 63 and protrudes from the brush suction port 84 of the suction port 47 to the lower side of the bristle 82, and is pressed against the seal packing 96 to come into airtight contact with the extension tube. The tip of 8 communicates with the communication port 95.

この状態で、作業者は電源コード24を引き出して図示しないコンセントに接続し、所定の操作ボタンを操作して電動送風機３を所定の動作モードで駆動させ、把持部42を把持して電気掃除機１を床面上で走行させて床面の塵埃を床ブラシ11の吸込口から空気とともに吸い込む。 In this state, the operator pulls out the power cord 24 and connects it to an outlet (not shown), operates a predetermined operation button to drive the electric blower 3 in a predetermined operation mode, grips the grip portion 42, and cleans the electric vacuum cleaner. 1 is run on the floor surface, and dust on the floor surface is sucked together with air from the suction port of the floor brush 11.

また、隙間、部屋の隅、あるいは作業者の手が届かない高い位置などを掃除する際には、延長管８を掃除機本体２から取り外す。 Further, the extension pipe 8 is removed from the cleaner body 2 when cleaning a gap, a corner of a room, or a high position where an operator cannot reach.

すなわち、作業者が操作クランプ19の操作ボタン19aを押すと、係合部と係合孔部との係合が解除されて延長管８の保持状態が解除され、作業者が把持部42を把持して延長管８を掃除機本体２から取り外すと、この取り外しに伴い、圧縮ばね63が復帰することで吸込口部47が延長管８の先端部に向けて摺動し、この延長管８の先端部に装着される。 That is, when the operator presses the operation button 19a of the operation clamp 19, the engagement between the engagement portion and the engagement hole is released, the holding state of the extension pipe 8 is released, and the operator holds the grip portion 42. Then, when the extension pipe 8 is removed from the cleaner body 2, the suction spring 47 slides toward the distal end of the extension pipe 8 by returning the compression spring 63 along with this removal, and the extension pipe 8 Attached to the tip.

そして、作業者は、固定部45を操作して延長管８を所望の長さに伸縮させ、取手部12を把持して掃除機本体２を持ち上げて運搬しつつ把持部42を把持して吸込口部47を隙間などに挿入し、ブラシ毛82を被掃除面に当接させて塵埃をブラシ毛82で掻き出し、この塵埃をブラシ吸込口84から空気とともに吸い込む。 Then, the operator operates the fixing portion 45 to expand and contract the extension tube 8 to a desired length, grips the handle portion 12 and lifts and conveys the cleaner body 2 while holding the grip portion 42 and sucks it. The mouth part 47 is inserted into a gap or the like, the bristles 82 are brought into contact with the surface to be cleaned, dust is scraped out by the bristles 82, and the dust is sucked together with air from the brush suction port 84.

吸い込まれた塵埃は、集塵部４にて空気から分離されて捕集され、塵埃を分離された空気は、電動送風機３を通過して排気風となり、排気孔14から掃除機本体２の外部へと排気される。 The sucked dust is separated from the air and collected by the dust collecting unit 4, and the air from which the dust has been separated passes through the electric blower 3 to become exhaust air, and is exhausted from the exhaust hole 14 to the outside of the cleaner body 2. Is exhausted.

上述したように、上記一実施の形態では、延長管８をロック部46により掃除機本体２に保持する際には、吸込口部47の下端面が当接平面部91に当接して吸込口部47が延長管８に沿って相対的に摺動して延長管８の先端部が吸込口部47から突出して連通口95に連通し、延長管８の保持状態を解除する際には、吸込口部47が延長管８の先端部に向けて付勢されて延長管８の先端部に自動で装着される構成とした。 As described above, in the above-described embodiment, when the extension pipe 8 is held on the cleaner body 2 by the lock portion 46, the lower end surface of the suction port portion 47 comes into contact with the contact flat surface portion 91 and the suction port. When the portion 47 slides relatively along the extension tube 8 and the tip of the extension tube 8 protrudes from the suction port portion 47 and communicates with the communication port 95, the holding state of the extension tube 8 is released. The suction port portion 47 is urged toward the distal end portion of the extension tube 8 and is automatically attached to the distal end portion of the extension tube 8.

この結果、汚れ易い吸込口部47に作業者が手で触れることなく延長管８を掃除機本体２に保持したり、この保持状態を解除して吸込口部47を延長管８の先端部に装着したりできるので、衛生的となるとともに、床ブラシ11を用いる掃除作業と延長管８を用いる掃除作業とを、手間なく素早く切り換えでき、使い勝手を向上できる。 As a result, the extension pipe 8 is held in the vacuum cleaner body 2 without the operator touching the suction inlet 47 that is easily soiled, or the holding state is released and the suction inlet 47 is moved to the tip of the extension pipe 8. Since it can be attached, it becomes hygienic, and the cleaning operation using the floor brush 11 and the cleaning operation using the extension pipe 8 can be quickly switched without trouble, and the usability can be improved.

また、丸ブラシ部62の下端部に当接フランジ部86を設け、この当接フランジ部86の下端部を略面一に形成するとともに、受け部９の上端部に平面状の当接平面部91を設けることで、延長管８を掃除機本体２に保持する際に、吸込口部47の丸ブラシ部62が延長管８に対して回動した状態であっても、当接フランジ部86の下端面を当接平面部91に当接させて延長管８を掃除機本体２側へと回動させるだけで吸込口部47を容易に受け部９に固定できるとともに、延長管８の位置合わせを容易にできる。 Further, a contact flange portion 86 is provided at the lower end portion of the round brush portion 62, the lower end portion of the contact flange portion 86 is formed substantially flush with the upper end portion of the receiving portion 9, and a flat contact plane portion. By providing 91, even when the round brush portion 62 of the suction port portion 47 is rotated with respect to the extension tube 8 when the extension tube 8 is held in the cleaner body 2, the contact flange portion 86 is provided. The suction port portion 47 can be easily fixed to the receiving portion 9 and the position of the extension tube 8 can be determined by simply rotating the extension tube 8 toward the cleaner body 2 with the lower end surface of the contact portion being in contact with the contact flat surface portion 91. Matching can be done easily.

さらに、吸込口部47の先端カバー61に、丸ブラシ部62を設けることで、掃除の際に丸ブラシ部62のブラシ毛82で被掃除面の塵埃を掻き出すことができ、掃除性を向上できる。 Further, by providing the round brush portion 62 on the tip cover 61 of the suction port portion 47, the dust on the surface to be cleaned can be scraped off by the brush bristles 82 of the round brush portion 62 at the time of cleaning, and the cleaning performance can be improved. .

そして、ブラシ毛82は、延長管８の保持状態で収容凹部92内に収容されるので、延長管８の収納時に作業者がブラシ毛82に触れたりすることをも防止でき、衛生性をより向上できる。 And since the bristle 82 is accommodated in the accommodation recessed part 92 in the holding | maintenance state of the extension pipe | tube 8, it can also prevent that an operator touches the bristle 82 at the time of accommodation of the extension pipe | tube 8, and hygiene is improved. It can be improved.

しかも、ブラシ毛82は、延長管８の保持状態で底面部94に接触しないため、延長管８を長期に亘って掃除機本体２に対して保持状態としても、ブラシ毛82に曲げ方向の外力が加わることがなく、ブラシ毛82が曲がってしまうことをも防止できる。 Moreover, since the bristle 82 does not come into contact with the bottom surface portion 94 when the extension tube 8 is held, even if the extension tube 8 is held against the cleaner body 2 for a long period of time, an external force in the bending direction is applied to the brush bristle 82. It is possible to prevent the brush hair 82 from being bent.

また、丸ブラシ部62を先端カバー61に対して回動可能とすることで、掃除場所に応じて丸ブラシ部62の延長管８に対する角度を適切に変化させて被掃除面に対してブラシ毛82を効率よく作用させることができ、掃除性をより向上できる。 Further, by making the round brush portion 62 pivotable with respect to the tip cover 61, the angle of the round brush portion 62 with respect to the extension tube 8 is appropriately changed according to the cleaning place, and the brush hair with respect to the surface to be cleaned. 82 can be made to act efficiently, and the cleaning property can be further improved.

さらに、底面部94上に塵埃が溜まった場合でも、延長管８を掃除機本体２に保持する際に延長管８から吸い込みできる。 Further, even when dust accumulates on the bottom surface portion 94, the extension tube 8 can be sucked from the extension tube 8 when held in the cleaner body 2.

なお、上記一実施の形態において、受け部９、ロック部46、あるいは吸込口部47の細部などは、上記構成に限定されるものではない。 In the above-described embodiment, details of the receiving portion 9, the lock portion 46, or the suction port portion 47 are not limited to the above configuration.

特に、保持手段は、掃除機本体２のみに設ける構成、延長管８のみに設ける構成なども可能である。 In particular, a configuration in which the holding means is provided only in the cleaner body 2 or a configuration provided only in the extension pipe 8 is also possible.

また、上記一実施の形態では、風路管を延長管８としたが、必ずしも上記構成に限定されるものではなく、下流側が電動送風機３の吸込側に連通するものであれば、例えばホース体５の先端部に挿通部材48を一体的に設けて連通口95に連通可能とするとともに、吸込口部47を挿通部材48に沿って摺動自在とするように構成された風路管など、他の様々な形態とすることが可能である。 Moreover, in the said one Embodiment, although the air duct pipe was made into the extension pipe 8, it is not necessarily limited to the said structure, For example, if a downstream side is connected to the suction side of the electric blower 3, for example, a hose body An air passage tube configured so that the insertion member 48 is integrally provided at the front end portion of 5 to communicate with the communication port 95, and the suction port portion 47 is slidable along the insertion member 48; Various other forms are possible.

さらに、丸ブラシ部62が延長管８に対して同軸上に位置している場合にのみ圧縮ばね63が収縮可能となり、丸ブラシ部62が延長管８に対して回動している状態では圧縮ばね63が収縮できない構成とすることも可能である。この場合には、延長管８の使用中などに、延長管８の先端部が吸込口部47から突出することなどがなく、掃除作業性がより向上する。 Further, the compression spring 63 can be contracted only when the round brush portion 62 is coaxially positioned with respect to the extension tube 8, and the compression is performed when the round brush portion 62 is rotated with respect to the extension tube 8. A configuration in which the spring 63 cannot contract is also possible. In this case, when the extension pipe 8 is in use, the tip of the extension pipe 8 does not protrude from the suction port 47, and the cleaning workability is further improved.

本発明の一実施の形態の電気掃除機を示す縦断面図であり、(a)は、延長管の保持直前の状態を示す縦断面図であり、(b)は、延長管の保持状態を示す縦断面図である。It is a longitudinal sectional view showing a vacuum cleaner according to an embodiment of the present invention, (a) is a longitudinal sectional view showing a state immediately before holding the extension pipe, (b) is a holding state of the extension pipe It is a longitudinal cross-sectional view shown. 同上電気掃除機を示す斜視図である。It is a perspective view which shows a vacuum cleaner same as the above. 同上電気掃除機の風路管の保持状態を示す斜視図である。It is a perspective view which shows the holding | maintenance state of the airline pipe of a vacuum cleaner same as the above. 同上電気掃除機の上部を示す斜視図である。It is a perspective view which shows the upper part of a vacuum cleaner same as the above. 同上電気掃除機の風路管の収納手順を示す側面図であり、(a)は、吸込口部の受け部への固定状態を示す側面図、(b)は、風路管を掃除機本体へと回動させた状態を示す側面図、(c)は、風路管を掃除機本体に固定した状態を示す側面図である。It is a side view showing the storing procedure of the air channel pipe of the vacuum cleaner same as the above, (a) is a side view showing a fixed state to the receiving portion of the suction port portion, (b) is the main body of the vacuum cleaner The side view which shows the state rotated to the side, (c) is a side view which shows the state which fixed the air path pipe | tube to the cleaner body. 同上電気掃除機を示す斜視図である。It is a perspective view which shows a vacuum cleaner same as the above.

Explanation of symbols

１電気掃除機
２掃除機本体
３電動送風機
８風路管としての延長管
９受け部
11 吸込口体としての床ブラシ
46 保持手段としてのロック部
47 吸込口部
61 カバー体としての先端カバー
62 ブラシ部としての丸ブラシ部
63 付勢部材としての圧縮ばね
91 当接部としての当接平面部
95 連通口 DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner 2 Vacuum cleaner main body 3 Electric blower 8 Extension pipe as an air duct 9 Receiving part
11 Floor brush as inlet
46 Locking part as holding means
47 Suction port
61 Tip cover as cover
62 Round brush as brush
63 Compression spring as biasing member
91 Contact flat part as contact part
95 Communication port

Claims

A vacuum cleaner body containing an electric blower,
A suction port connected to the main body of the vacuum cleaner;
An air duct that communicates with the suction side of the electric blower;
A suction port provided at the upstream end of the air duct so as to be slidable along the air duct, and urged toward the upstream side of the air duct;
A holding means provided in at least one of the cleaner body and the air duct, and capable of holding the air duct in the cleaner body;
A communication port that communicates with the suction port body and a contact portion that contacts the suction port portion, and a receiving portion that is provided in the cleaner body,
When the air duct is held by the vacuum cleaner main body by the holding means, the suction port is in contact with the abutting portion and is relatively slid along the air duct. An electric vacuum cleaner characterized in that an upstream end portion of an air duct tube projects from the suction port portion and communicates with the communication port.

The suction port is
A cover body slidably provided at the tip of the air duct,
A biasing member that biases the cover body toward the tip of the air duct;
The vacuum cleaner according to claim 1, further comprising a brush portion provided on the cover body.

The electric vacuum cleaner according to claim 2, wherein the brush portion is rotatably provided at a tip portion of the cover body.