JP7055921B2 - Vacuum cleaner suction and vacuum cleaner - Google Patents

Vacuum cleaner suction and vacuum cleaner Download PDF

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JP7055921B2
JP7055921B2 JP2021081195A JP2021081195A JP7055921B2 JP 7055921 B2 JP7055921 B2 JP 7055921B2 JP 2021081195 A JP2021081195 A JP 2021081195A JP 2021081195 A JP2021081195 A JP 2021081195A JP 7055921 B2 JP7055921 B2 JP 7055921B2
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brush
rotating brush
vacuum cleaner
suction
accommodating portion
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JP2021112667A (en
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洋光 市川
育弘 大津
信秀 興津
孝吉 清水
恵美 山本
拳斗 大島
清 江部
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Toshiba Lifestyle Products and Services Corp
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Description

本発明の実施形態は、掃除機用吸込具および電気掃除機に関する。 Embodiments of the present invention relate to a vacuum cleaner suction tool and an electric vacuum cleaner.

従来、電気掃除機用の吸込具として、開口部に回転ブラシが設けられ、吸引清掃時に上記回転ブラシが被清掃面に対して回転することにより、被清掃面上の塵埃を掻き出しながら吸引する吸込具が提案されている。このような吸込具は、回転ブラシにより塵埃を掻き出せるという利点がある一方、回転ブラシが配置されるため吸込具の内部に隙間が生じ易い。そのため、吸込み効率が低下し易い。 Conventionally, as a suction tool for an electric vacuum cleaner, a rotating brush is provided at the opening, and the rotating brush rotates with respect to the surface to be cleaned during suction cleaning, so that dust on the surface to be cleaned is sucked while being sucked. Ingredients have been proposed. While such a suction tool has an advantage that dust can be scraped out by a rotating brush, a gap is likely to be generated inside the suction tool because the rotating brush is arranged. Therefore, the suction efficiency tends to decrease.

特開2017-104711号公報Japanese Unexamined Patent Publication No. 2017-104711

本発明が解決しようとする課題は、吸込み効率の向上を図ることができる掃除機用吸込具および電気掃除機を提供することである。 An object to be solved by the present invention is to provide a vacuum cleaner suction tool and an electric vacuum cleaner capable of improving suction efficiency.

実施形態に係る掃除機用吸込具は、掃除機本体と直接的または間接的に接続される連結管と、少なくとも下方が開放された第一ブラシ収容部と、少なくとも下方が開放された第二ブラシ収容部と、前記第一ブラシ収容部と前記第二ブラシ収容部との間に開口した吸込開口と、前記吸込開口と前記連結管とを連通させる吸込風路を有した筐体と、前記第一ブラシ収容部に配置された第一回転ブラシと、前記第二ブラシ収容部に配置された第二回転ブラシと、を備え、前記第一ブラシ収容部は、前記第一ブラシ収容部の後端部に設けられ、前記第一ブラシ収容部と前記第一回転ブラシとの間の隙間の少なくとも一部を遮蔽する遮蔽部を備え、前記第一回転ブラシおよび前記第二回転ブラシは、それぞれ被清掃面との接触部側から前記吸込開口に向かう方向に互いに逆方向に回転するThe suction tool for a vacuum cleaner according to the embodiment includes a connecting pipe that is directly or indirectly connected to the vacuum cleaner main body, a first brush accommodating portion that is open at least downward, and a second brush that is open at least downward. A housing having a storage portion, a suction opening opened between the first brush storage portion and the second brush storage portion, and a suction air passage for communicating the suction opening and the connecting pipe, and the first. The first rotating brush arranged in the one brush accommodating portion and the second rotating brush arranged in the second brush accommodating portion are provided, and the first brush accommodating portion is the rear end of the first brush accommodating portion. The first rotating brush and the second rotating brush are each provided with a shielding portion that shields at least a part of the gap between the first brush accommodating portion and the first rotating brush. They rotate in opposite directions from the contact portion side with the surface toward the suction opening .

実施形態に係る電気掃除機の斜視図。The perspective view of the electric vacuum cleaner which concerns on embodiment. 実施形態に係る掃除機用吸込具の斜視図。The perspective view of the suction tool for a vacuum cleaner which concerns on embodiment. 実施形態に係る掃除機用吸込具の上面図。Top view of the suction tool for a vacuum cleaner according to the embodiment. 実施形態に係る掃除機用吸込具の下面図。The bottom view of the suction tool for a vacuum cleaner which concerns on embodiment. 図3に示すV-V線における断面図。FIG. 3 is a cross-sectional view taken along the line VV shown in FIG. 図3に示すVI-VI線における断面図。FIG. 3 is a cross-sectional view taken along the line VI-VI shown in FIG. 実施形態に係る掃除機用吸込具の内部を示す斜視図。The perspective view which shows the inside of the suction tool for a vacuum cleaner which concerns on embodiment. 実施形態の第一ブラシを示す斜視図。The perspective view which shows the 1st brush of an embodiment. 実施形態の第二ブラシを示す斜視図。The perspective view which shows the 2nd brush of an embodiment. 実施形態に係る掃除機用吸込具の変形例の断面図。Sectional drawing of the modification of the suction tool for a vacuum cleaner which concerns on embodiment.

以下、実施形態の掃除機用吸込具および電気掃除機を、図面を参照して説明する。図1は、本実施形態に係る電気掃除機100の斜視図である。 Hereinafter, the vacuum cleaner suction tool and the vacuum cleaner of the embodiment will be described with reference to the drawings. FIG. 1 is a perspective view of the vacuum cleaner 100 according to the present embodiment.

電気掃除機100は、掃除機本体200と掃除機用吸込具1(以下、「吸込具」と称する。)と、を備える。電気掃除機100は、さらに、延長管300を備える。吸込具1は、延長管300を介して掃除機本体200の吸引口203に接続されて使用される。以下では、二次電池ユニット206が内蔵されたコードレスタイプであり、所謂スティック型の電気掃除機を例に説明する。但し、電気掃除機100および吸込具1は、コードレスタイプおよびスティック型の例に限定されず、例えば、車輪を含む掃除機本体を有した所謂キャニスタ型、電源コードを備え商用電源と接続して電源を得るコード型タイプ、その他の電気掃除機にも適用可能である。 The vacuum cleaner 100 includes a vacuum cleaner main body 200 and a vacuum cleaner suction tool 1 (hereinafter, referred to as "suction tool"). The vacuum cleaner 100 further includes an extension tube 300. The suction tool 1 is used by being connected to the suction port 203 of the vacuum cleaner main body 200 via the extension pipe 300. Hereinafter, a cordless type having a built-in secondary battery unit 206, and a so-called stick-type vacuum cleaner will be described as an example. However, the vacuum cleaner 100 and the suction tool 1 are not limited to the cordless type and the stick type, for example, a so-called canister type having a vacuum cleaner body including wheels, a power cord, and a power source connected to a commercial power source. It is also applicable to cord type type and other vacuum cleaners.

掃除機本体200は、電動送風機201と、集塵部202と、二次電池ユニット206と、制御部208と、吸引口203と、ハンドル204とを備える。電動送風機201、二次電池ユニット206、および制御部208は、筐体2内に収容されている。吸引口203およびハンドル204は筐体2に形成されている。 The vacuum cleaner main body 200 includes an electric blower 201, a dust collecting unit 202, a secondary battery unit 206, a control unit 208, a suction port 203, and a handle 204. The electric blower 201, the secondary battery unit 206, and the control unit 208 are housed in the housing 2. The suction port 203 and the handle 204 are formed in the housing 2.

ハンドル204は、電気掃除機100のユーザが把持する部分である。ハンドル204は筐体2の一端部に設けられている。ハンドル204には、電気掃除機100の電源や駆動モードを切り替える複数の設定ボタン207が設けられている。 The handle 204 is a portion gripped by the user of the vacuum cleaner 100. The handle 204 is provided at one end of the housing 2. The handle 204 is provided with a plurality of setting buttons 207 for switching the power supply and drive mode of the vacuum cleaner 100.

吸引口203は、延長管300が取り付けられる開口部である。吸引口203は、筒形状を有し、集塵部202を介して電動送風機201の吸引経路(不図示)に接続されている。吸引口203には、ロック部205が設けられている。ロック部205は、吸引口203に挿入される延長管300を係合状態で保持するクランプ式の係合機構である。 The suction port 203 is an opening to which the extension pipe 300 is attached. The suction port 203 has a tubular shape and is connected to a suction path (not shown) of the electric blower 201 via a dust collector 202. The suction port 203 is provided with a lock portion 205. The lock portion 205 is a clamp-type engaging mechanism that holds the extension tube 300 inserted into the suction port 203 in an engaged state.

電動送風機201は、ファンモータまたはメインモータと呼ばれるモータと、モータにより回転されるインペラとを含み、駆動されることで負圧を発生させる。電動送風機201のモータは、例えば、直流モータが挙げられるが、これに限定されず各種モータが使用可能である。電動送風機201は、発生させた負圧により吸引口203等から空気を吸い込み、排気口209から掃除機本体200の外部に排気するように構成されている。 The electric blower 201 includes a motor called a fan motor or a main motor and an impeller rotated by the motor, and is driven to generate a negative pressure. The motor of the electric blower 201 is, for example, a DC motor, but the motor is not limited to this, and various motors can be used. The electric blower 201 is configured to suck air from the suction port 203 or the like by the generated negative pressure and exhaust the air from the exhaust port 209 to the outside of the vacuum cleaner main body 200.

集塵部202は、筐体2に着脱可能に装着されている。集塵部202は、電動送風機201の働きにより掃除機本体200に吸い込まれた空気に含まれる塵埃を分離する装置である。集塵部202は、ハンドル204の前方かつ吸引口203の上方に取り付けられている。集塵部202の流路の下流端は、電動送風機201の吸引路に接続されている。集塵部202は、塵収容部2021と、塵分離機2022とを備える。集塵部202が筐体2に装着された状態で、集塵部202が吸引口203の後端部と連通し、塵分離機2022が吸引口203から吸引された塵埃を含む空気から塵を分離し、分離された塵が塵収容部2021内に貯留される。 The dust collector 202 is detachably attached to the housing 2. The dust collecting unit 202 is a device that separates dust contained in the air sucked into the vacuum cleaner main body 200 by the action of the electric blower 201. The dust collecting portion 202 is attached to the front of the handle 204 and above the suction port 203. The downstream end of the flow path of the dust collector 202 is connected to the suction path of the electric blower 201. The dust collecting unit 202 includes a dust accommodating unit 2021 and a dust separator 2022. With the dust collecting unit 202 mounted on the housing 2, the dust collecting unit 202 communicates with the rear end portion of the suction port 203, and the dust separator 2022 collects dust from the air including the dust sucked from the suction port 203. Separated, the separated dust is stored in the dust accommodating portion 2021.

二次電池ユニット206は、不図示の充電装置と電気的に接続されて充電される。二次電池ユニット206は、電気掃除機100が動作するために必要な電力を電気掃除機100に供給する。例えば、二次電池ユニット206は、電動送風機201、吸込具1内のモータ51,52、および制御部208等に電力を供給する。 The secondary battery unit 206 is electrically connected to a charging device (not shown) to be charged. The secondary battery unit 206 supplies the vacuum cleaner 100 with the electric power required for the vacuum cleaner 100 to operate. For example, the secondary battery unit 206 supplies electric power to the electric blower 201, the motors 51 and 52 in the suction tool 1, the control unit 208, and the like.

電動送風機201は制御部208により制御される。制御部208は、例えばマイコンなどを備えた制御基板である。制御部208は、例えば設定ボタン207によるユーザの操作に応じて電動送風機201等を動作させる駆動制御部を備えている。制御部208は、商用交流電源などの外部電源から給電を受けて二次電池を充電する定電流回路などの充電回路部を備えていてもよい。制御基板は、配線パターンが設けられたプリント配線板と、プリント配線板に実装された複数の電子部品とを含む。 The electric blower 201 is controlled by the control unit 208. The control unit 208 is a control board provided with, for example, a microcomputer. The control unit 208 includes, for example, a drive control unit that operates the electric blower 201 and the like in response to a user operation by the setting button 207. The control unit 208 may include a charging circuit unit such as a constant current circuit that receives power from an external power source such as a commercial AC power source to charge the secondary battery. The control board includes a printed wiring board provided with a wiring pattern and a plurality of electronic components mounted on the printed wiring board.

図2は、本実施形態に係る掃除機用吸込具1の斜視図である。図3は、掃除機用吸込具1の上面図である。図4は、掃除機用吸込具1の下面図である。図5は、図3に示すV-V線における断面図である。図6は、図3に示すVI-VI線における断面図である。吸込具1は、連結管9と、筐体2と、第一回転ブラシ3と、第二回転ブラシ4と、遮蔽部7と、を備える。吸込具1は、モータ51,52、制御部10、及び電気コネクタ93をさらに備える。 FIG. 2 is a perspective view of the suction tool 1 for a vacuum cleaner according to the present embodiment. FIG. 3 is a top view of the suction tool 1 for a vacuum cleaner. FIG. 4 is a bottom view of the suction tool 1 for a vacuum cleaner. FIG. 5 is a cross-sectional view taken along the line VV shown in FIG. FIG. 6 is a cross-sectional view taken along the line VI-VI shown in FIG. The suction tool 1 includes a connecting pipe 9, a housing 2, a first rotating brush 3, a second rotating brush 4, and a shielding portion 7. The suction tool 1 further includes motors 51 and 52, a control unit 10, and an electric connector 93.

図2から図4に示すように、吸込具1は、上面視略長方形の筐体2の長手方向の中央部に連結管9が設けられている。以下の説明において、連結管9が設けられている側を吸込具1の後側と称し、筐体2において連結管9が設けられた側とは反対側を吸込具1の前側と称する。図3に示す矢印FRを前方向、矢印RRを後方向と称する。筐体2内には、第一回転ブラシ3及び第二回転ブラシ4が筐体2の長手方向に沿って設けられている。第一回転ブラシ3および第二回転ブラシ4は各回転シャフト31,41の軸線が平行に配置されている。第一回転ブラシ3が筐体2の前側に配置され、第二回転ブラシ4が第一回転ブラシ3の後方(連結管9側)に配置されている。連結管9は、各回転ブラシ3,4の回転シャフト31,41の軸線に直交する方向に延びている。以下、各回転ブラシ3,4の回転シャフト31,41が延びる方向を回転軸方向と称する。 As shown in FIGS. 2 to 4, the suction tool 1 is provided with a connecting pipe 9 at the center in the longitudinal direction of the housing 2 having a substantially rectangular top view. In the following description, the side where the connecting pipe 9 is provided is referred to as the rear side of the suction tool 1, and the side of the housing 2 opposite to the side where the connecting pipe 9 is provided is referred to as the front side of the suction tool 1. The arrow FR shown in FIG. 3 is referred to as a forward direction, and the arrow RR is referred to as a backward direction. A first rotating brush 3 and a second rotating brush 4 are provided in the housing 2 along the longitudinal direction of the housing 2. In the first rotating brush 3 and the second rotating brush 4, the axes of the rotating shafts 31 and 41 are arranged in parallel. The first rotating brush 3 is arranged on the front side of the housing 2, and the second rotating brush 4 is arranged on the rear side of the first rotating brush 3 (on the connecting pipe 9 side). The connecting pipe 9 extends in a direction orthogonal to the axis of the rotating shafts 31 and 41 of the rotating brushes 3 and 4. Hereinafter, the direction in which the rotating shafts 31 and 41 of the rotating brushes 3 and 4 extend is referred to as a rotation axis direction.

連結管9は、掃除機本体200と直接的または間接的に接続される管状部材である。例えば、連結管9は、電気掃除機100の延長管300と連結可能である。連結管9の上端部94が延長管300に接続される。延長管300の下端部にはロック部210が設けられている。ロック部210により、延長管300と連結管9との接続状態が保持される。吸引口203の開口形状及びロック部205の構成と、延長管300の下端部の開口形状およびロック部210の構成とは同様である。したがって、連結管9は、延長管300の下端部および吸引口203に接続可能である。 The connecting pipe 9 is a tubular member that is directly or indirectly connected to the vacuum cleaner main body 200. For example, the connecting pipe 9 can be connected to the extension pipe 300 of the vacuum cleaner 100. The upper end portion 94 of the connecting pipe 9 is connected to the extension pipe 300. A lock portion 210 is provided at the lower end of the extension pipe 300. The lock portion 210 maintains the connected state between the extension pipe 300 and the connecting pipe 9. The opening shape of the suction port 203 and the configuration of the lock portion 205 are the same as the opening shape of the lower end portion of the extension tube 300 and the configuration of the lock portion 210. Therefore, the connecting pipe 9 can be connected to the lower end portion of the extension pipe 300 and the suction port 203.

連結管9の下端部95は、筐体2の連結口21に挿入されている。連結管9の上面には電気コネクタ93が設けられている。電気コネクタ93は後述する制御部10およびモータ51,52と電気的に接続されている。電気コネクタ93は、延長管300の電気コネクタ(不図示)と電気的に接続されて、掃除機本体200の二次電池ユニット206から制御部10およびモータ51,52が通電される。 The lower end portion 95 of the connecting pipe 9 is inserted into the connecting port 21 of the housing 2. An electric connector 93 is provided on the upper surface of the connecting pipe 9. The electric connector 93 is electrically connected to the control unit 10 and the motors 51 and 52, which will be described later. The electric connector 93 is electrically connected to an electric connector (not shown) of the extension pipe 300, and the control unit 10 and the motors 51 and 52 are energized from the secondary battery unit 206 of the vacuum cleaner main body 200.

筐体2は、収容部6と、吸込開口22と、吸込風路26とを有する。筐体2は、連結口21と、吸込口28とをさらに備える。連結口21は、筐体2の後端部における回転軸方向の略中央部に形成された開口部であり、連結管9が挿入される。図5に示すように、連結口21は、略球形の中空部を有し、中空部内に連結管9が挿入されて係合されている。連結口21の上部211は、連結管9の下端部95の上部の円弧部と摺接している。連結管9は、連結口21に対して上下方向および左右方向(回転軸方向)に相対回動可能に連結されている。連結管9の下端部95の下面には、ブラシ92が設けられ、連結口21との隙間の通風を遮蔽している。 The housing 2 has an accommodating portion 6, a suction opening 22, and a suction air passage 26. The housing 2 further includes a connecting port 21 and a suction port 28. The connecting port 21 is an opening formed in a substantially central portion in the rotation axis direction at the rear end portion of the housing 2, and the connecting pipe 9 is inserted into the connecting port 21. As shown in FIG. 5, the connecting port 21 has a substantially spherical hollow portion, and the connecting pipe 9 is inserted and engaged with the hollow portion. The upper portion 211 of the connecting port 21 is in sliding contact with the upper arc portion of the lower end portion 95 of the connecting pipe 9. The connecting pipe 9 is connected to the connecting port 21 so as to be relatively rotatable in the vertical direction and the horizontal direction (rotational axis direction). A brush 92 is provided on the lower surface of the lower end portion 95 of the connecting pipe 9 to block the ventilation of the gap with the connecting port 21.

筐体2は、筐体2の回転軸方向の略中央部に吸込風路26を備える。吸込風路26は、連結口21に連通し、連結口21から前方に延び、吸込風路26の前側の端部である吸込開口22が筐体2の前後方向の略中央部に開口する。吸込開口22は、収容部6に開口している。吸込風路26の吸込開口22は、第一回転ブラシ3と第二回転ブラシ4との間に開口している。吸込風路26は、後述する第二回転ブラシ収容部62の上方に配置され、連結口21と吸込開口22との間を連結する通路である。 The housing 2 is provided with a suction air passage 26 at a substantially central portion in the rotation axis direction of the housing 2. The suction air passage 26 communicates with the connecting port 21 and extends forward from the connecting port 21, and the suction opening 22 which is the front end of the suction air passage 26 opens to a substantially central portion in the front-rear direction of the housing 2. The suction opening 22 is open to the accommodating portion 6. The suction opening 22 of the suction air passage 26 is open between the first rotating brush 3 and the second rotating brush 4. The suction air passage 26 is arranged above the second rotating brush accommodating portion 62, which will be described later, and is a passage connecting the connecting port 21 and the suction opening 22.

吸込開口22は、回転軸方向では、筐体2の中央部のみに開口している。吸込開口22は、回転軸方向における吸込開口22の一部に開口していればよく、中央部に限定されない。 The suction opening 22 opens only in the central portion of the housing 2 in the direction of the rotation axis. The suction opening 22 may be open to a part of the suction opening 22 in the rotation axis direction, and is not limited to the central portion.

吸込開口22は、第一回転ブラシ3、第二回転ブラシ4の回転軸方向に沿って長い略長方形状に形成されている。吸込開口22は、前端221よりも後端222の方が低く、斜め前方に向かって開口している。吸込開口22は、前端221が第一回転ブラシ3の回転中心軸O3および第二回転ブラシ4の回転中心軸O4よりも高い位置で開口している。 The suction opening 22 is formed in a substantially rectangular shape long along the rotation axis direction of the first rotation brush 3 and the second rotation brush 4. The suction opening 22 is lower at the rear end 222 than at the front end 221 and opens diagonally forward. The suction opening 22 has a front end 221 opened at a position higher than the rotation center axis O3 of the first rotation brush 3 and the rotation center axis O4 of the second rotation brush 4.

吸込開口22の少なくとも一部(例えば全部)は、第一回転ブラシ3の回転中心軸O3よりも高い位置で開口していればよい。吸込開口22の少なくとも一部(例えば全部)は、第二回転ブラシ4の回転中心軸O4よりも高い位置で開口していればよい。 At least a part (for example, all) of the suction opening 22 may be opened at a position higher than the rotation center axis O3 of the first rotation brush 3. At least a part (for example, all) of the suction opening 22 may be opened at a position higher than the rotation center axis O4 of the second rotation brush 4.

吸込口28は、図4に示すように、筐体2の下面29に形成されている。吸込口28は、筐体2の前端から開口し、第一回転ブラシ3および第二回転ブラシ4が下面29から露出する寸法の矩形の開口形状を有する。 As shown in FIG. 4, the suction port 28 is formed on the lower surface 29 of the housing 2. The suction port 28 has a rectangular opening shape that opens from the front end of the housing 2 and has dimensions such that the first rotating brush 3 and the second rotating brush 4 are exposed from the lower surface 29.

吸込口28の上方に収容部6が形成されている。収容部6は、下方が吸込口28により開放されている。収容部6は、第一回転ブラシ収容部61(以下、「第一ブラシ収容部」と称する。)および第二回転ブラシ収容部62(以下、「第二ブラシ収容部」と称する。)を備える。図5に示すように、収容部6は、筐体2の前端部に第一ブラシ収容部61が設けられ、第一ブラシ収容部61の後端に隣接して、吸込開口22が開口し、吸込開口22の後端222に隣接して第二ブラシ収容部62が設けられている。 The accommodating portion 6 is formed above the suction port 28. The lower part of the accommodating portion 6 is opened by the suction port 28. The accommodating portion 6 includes a first rotating brush accommodating portion 61 (hereinafter referred to as “first brush accommodating portion”) and a second rotating brush accommodating portion 62 (hereinafter referred to as “second brush accommodating portion”). .. As shown in FIG. 5, in the accommodating portion 6, the first brush accommodating portion 61 is provided at the front end portion of the housing 2, and the suction opening 22 is opened adjacent to the rear end of the first brush accommodating portion 61. A second brush accommodating portion 62 is provided adjacent to the rear end 222 of the suction opening 22.

図2に示すように、筐体2の前端面24には第一回転ブラシ3が露出する前開口27が形成されている。図5に示すように、第一回転ブラシ3の前端部が前開口27よりも前方に露出するように配置されている。この構成により、塵埃を吸込開口22側に巻き込み易い。 As shown in FIG. 2, the front end surface 24 of the housing 2 is formed with a front opening 27 to which the first rotating brush 3 is exposed. As shown in FIG. 5, the front end portion of the first rotating brush 3 is arranged so as to be exposed in front of the front opening 27. With this configuration, it is easy for dust to be caught in the suction opening 22 side.

第一ブラシ収容部61および第二ブラシ収容部62は、それぞれ曲面状の凹部611,621を有する。第一ブラシ収容部61の凹部611の下方に第一回転ブラシ3が収容され、第二ブラシ収容部62の凹部621の下方に第二回転ブラシ4が収容されている。各凹部611,621は、各回転ブラシ3、4の外形に沿う曲面状の形状を有する。各凹部611,621と各回転ブラシ3、4の外縁との間が僅かに離間するように各回転ブラシ3、4が取り付けられている。したがって、収容部6は、各回転ブラシ3、4の回転を妨げず、且つ、収容部6と被清掃面Fとの間の隙間を最小限に抑える程度の隙間が形成されている。 The first brush accommodating portion 61 and the second brush accommodating portion 62 each have curved recesses 611 and 621. The first rotating brush 3 is accommodated below the recess 611 of the first brush accommodating portion 61, and the second rotating brush 4 is accommodated below the recess 621 of the second brush accommodating portion 62. Each recess 611,621 has a curved shape along the outer shape of each of the rotating brushes 3 and 4. The rotating brushes 3 and 4 are attached so that the recesses 611 and 621 and the outer edges of the rotating brushes 3 and 4 are slightly separated from each other. Therefore, the accommodating portion 6 is formed with a gap that does not hinder the rotation of the rotating brushes 3 and 4 and minimizes the gap between the accommodating portion 6 and the surface to be cleaned F.

本説明において、「収容部に収容され」および「収容部に配置され」とは、対象部材の少なくとも一部が収容部内に配置されていることを意味し、対象部材の一部が収容部の外部にはみ出している場合も含む。 In the present description, "accommodated in the accommodating portion" and "arranged in the accommodating portion" mean that at least a part of the target member is arranged in the accommodating portion, and a part of the target member is of the accommodating portion. Including the case where it protrudes to the outside.

第一ブラシ収容部61は、吸込開口22よりも高い位置に設けられている。第二ブラシ収容部62の凹部621は、180度よりも大きな円弧面を有する。第二ブラシ収容部62の前端部は、突出壁622として、吸込開口22よりも下方に延びており、さらに言えば、第二回転ブラシ4の回転中心軸O4よりも低い位置まで延びている。第二ブラシ収容部62の後端部は、吸込開口22よりも低い位置までに延びており、さらに言えば、第二回転ブラシ4の回転中心軸O4よりも低い位置まで延びている。第二ブラシ収容部62の後端部は、吸込具1の下面29に繋がっている。 The first brush accommodating portion 61 is provided at a position higher than the suction opening 22. The recess 621 of the second brush accommodating portion 62 has an arc surface larger than 180 degrees. The front end portion of the second brush accommodating portion 62 extends downward from the suction opening 22 as a protruding wall 622, and further extends to a position lower than the rotation center axis O4 of the second rotating brush 4. The rear end portion of the second brush accommodating portion 62 extends to a position lower than the suction opening 22, and further extends to a position lower than the rotation center axis O4 of the second rotating brush 4. The rear end portion of the second brush accommodating portion 62 is connected to the lower surface 29 of the suction tool 1.

第一ブラシ収容部61の凹部611の内面には、遮蔽部7が設けられている。遮蔽部7は、第一ブラシ収容部61の凹部611と第一回転ブラシ3の外縁との間の隙間の少なくとも一部を遮蔽する部材である。遮蔽部7は、第一ブラシ収容部61の凹部611から第一回転ブラシ3側に突出して設けられている。遮蔽部7は、吸込開口22の後端222(下端)よりも高い位置に配置されている。遮蔽部7は第一ブラシ収容部61の後端部に設けられている。遮蔽部7は、第一回転ブラシ3に沿って回転軸方向に延設されている。より具体的には、遮蔽部7は、回転軸方向における凹部611の全長にわたって設けられている。 A shielding portion 7 is provided on the inner surface of the recess 611 of the first brush accommodating portion 61. The shielding portion 7 is a member that shields at least a part of the gap between the recess 611 of the first brush accommodating portion 61 and the outer edge of the first rotating brush 3. The shielding portion 7 is provided so as to project from the recess 611 of the first brush accommodating portion 61 toward the first rotating brush 3. The shielding portion 7 is arranged at a position higher than the rear end 222 (lower end) of the suction opening 22. The shielding portion 7 is provided at the rear end portion of the first brush accommodating portion 61. The shielding portion 7 extends in the direction of the rotation axis along the first rotation brush 3. More specifically, the shielding portion 7 is provided over the entire length of the recess 611 in the rotation axis direction.

遮蔽部7は、例えば、スポンジ、ブラシ、軟性ゴム、フェルト等の軟性部材で構成されている。遮蔽部7と第一回転ブラシ3との間は密接しておらず、第一回転ブラシ3の回転動作を妨げない程度に僅かな隙間を有する。遮蔽部7による隙間の遮蔽は、隙間の通気を完全に遮断するものではなく、第一ブラシ収容部61の内面(収容部6の内面)と第一回転ブラシ3の外周との隙間の一部を遮蔽し、通気量を低減させる効果を奏するものであればよい。 The shielding portion 7 is made of a soft member such as a sponge, a brush, a soft rubber, or a felt. The shielding portion 7 and the first rotating brush 3 are not in close contact with each other, and have a slight gap so as not to interfere with the rotational operation of the first rotating brush 3. The shielding of the gap by the shielding portion 7 does not completely block the ventilation of the gap, but is a part of the gap between the inner surface of the first brush accommodating portion 61 (inner surface of the accommodating portion 6) and the outer periphery of the first rotating brush 3. Anything that has the effect of shielding and reducing the amount of airflow may be used.

遮蔽部7は、第一ブラシ収容部61の円弧状の凹部611の形状に合わせた円弧状に形成されている。遮蔽部7が設けられる位置は、第一回転ブラシ3の回転方向において、遮蔽部7の寸法は、第一ブラシ収容部61の半分以下の大きさを有する。 The shielding portion 7 is formed in an arc shape that matches the shape of the arc-shaped recess 611 of the first brush accommodating portion 61. The position where the shielding portion 7 is provided is such that the dimension of the shielding portion 7 is less than half the size of the first brush accommodating portion 61 in the rotation direction of the first rotating brush 3.

第二ブラシ収容部62と、吸込開口22との境界部分に、下方に突出する突出壁622が設けられている。突出壁622の下端は、吸込開口22よりも低い。突出壁622は、第二回転ブラシ4の回転中心軸の高さと略等しい高さまで下方に延びている。 At the boundary between the second brush accommodating portion 62 and the suction opening 22, a protruding wall 622 protruding downward is provided. The lower end of the protruding wall 622 is lower than the suction opening 22. The protruding wall 622 extends downward to a height substantially equal to the height of the rotation center axis of the second rotating brush 4.

筐体2は、さらに駆動機構収容部63を備える。図7は、筐体2の上蓋25を省略して示す斜視図である。図6および図7に示すように、駆動機構収容部63は、収容部6と上蓋25との間の空間であり、モータ51,52、および制御部10(図7に模式的に図示)が収容されている。駆動機構収容部63は、収容部6から隔離されており、モータ51,52、および制御部10は、収容部6の上方において、各回転ブラシ3、4及び吸込風路26と隔離されて収容されている。 The housing 2 further includes a drive mechanism accommodating portion 63. FIG. 7 is a perspective view showing the upper lid 25 of the housing 2 omitted. As shown in FIGS. 6 and 7, the drive mechanism accommodating portion 63 is a space between the accommodating portion 6 and the upper lid 25, and the motors 51 and 52 and the control unit 10 (schematically shown in FIG. 7) are included. It is contained. The drive mechanism accommodating unit 63 is isolated from the accommodating unit 6, and the motors 51 and 52 and the control unit 10 are isolated from the rotating brushes 3 and 4 and the suction air passage 26 above the accommodating unit 6 and accommodated. Has been done.

モータ51,52は、第一回転ブラシ3を駆動する第一モータ51と、第二回転ブラシ4を駆動する第二モータ52と、を備える。第一モータ51と第二モータ52とは、独立して回転可能である。第一モータ51および第二モータ52は、回転軸方向の両端部に離間して設けられている。第一モータ51と第二モータ52との間には、吸込風路26および制御部10が設けられている。 The motors 51 and 52 include a first motor 51 that drives the first rotary brush 3 and a second motor 52 that drives the second rotary brush 4. The first motor 51 and the second motor 52 can rotate independently. The first motor 51 and the second motor 52 are provided apart from each other at both ends in the rotation axis direction. A suction air passage 26 and a control unit 10 are provided between the first motor 51 and the second motor 52.

次に、第一回転ブラシ3および第二回転ブラシ4の構成について説明する。 Next, the configurations of the first rotating brush 3 and the second rotating brush 4 will be described.

第一回転ブラシ3及び第二回転ブラシ4は、それぞれ収容部6内に配置されて各回転シャフト31,41の両端部が筐体2に回動可能に軸支され、且つ、不図示の駆動力伝達機構を介してモータ51,52に接続されている。 The first rotary brush 3 and the second rotary brush 4 are respectively arranged in the accommodating portion 6, both ends of the rotary shafts 31 and 41 are rotatably supported by the housing 2, and a drive (not shown) is provided. It is connected to the motors 51 and 52 via a force transmission mechanism.

図5および図6に示すように、収容部6内における第一回転ブラシ3と第二回転ブラシ4との間の空間を集塵室23と称する。集塵室23は、吸込具1の使用時に、被清掃面Fとの間に囲まれた空間が形成される。詳細は後述するが、集塵室23内に、第一回転ブラシ3により掻き出された被清掃面F上の塵埃が集められ、吸込開口22から吸引される。 As shown in FIGS. 5 and 6, the space between the first rotating brush 3 and the second rotating brush 4 in the accommodating portion 6 is referred to as a dust collecting chamber 23. The dust collecting chamber 23 is formed with a space surrounded by the surface to be cleaned F when the suction tool 1 is used. Although the details will be described later, the dust on the surface to be cleaned F scraped out by the first rotating brush 3 is collected in the dust collecting chamber 23 and sucked from the suction opening 22.

第一回転ブラシ3と第二回転ブラシ4とは逆方向に回転する。第一回転ブラシ3は、吸込具1の前進方向である前側から後側へ正回転(図5において反時計回り)し、第二回転ブラシ4は、後側から前側へ逆回転(図5において時計回り)する。 The first rotation brush 3 and the second rotation brush 4 rotate in opposite directions. The first rotating brush 3 rotates forward from the front side to the rear side (counterclockwise in FIG. 5), which is the forward direction of the suction tool 1, and the second rotating brush 4 rotates backward from the rear side to the front side (in FIG. 5). Clockwise).

筐体2の前端部に取り付けられる第一回転ブラシ3の外径D3は、第二回転ブラシ4の外径D4よりも大きい(図4参照)。 The outer diameter D3 of the first rotating brush 3 attached to the front end portion of the housing 2 is larger than the outer diameter D4 of the second rotating brush 4 (see FIG. 4).

第一回転ブラシ3は、円筒形の筒部33が回転シャフト31に外挿されて設けられている。第一回転ブラシ3は、筒部33の外周面に複数の第一起毛帯32が取り付けられている。第一起毛帯32は、複数の起毛が埋植された長尺な帯状体である。第一起毛帯32は、第一回転ブラシ3の回転に伴い、被清掃面Fに接触し、被清掃面F上の塵埃を掻き出すブラシの構成要素である。図8は第一回転ブラシ3の筒部33および第一起毛帯32の斜視図である。図8に示すように、同一形状の複数の第一起毛帯32が、回動軸に対して螺旋状に配置されて、筒部33の外周面に係合されている。第一回転ブラシ3は、螺旋状に配置された複数の起毛帯32で外周面の多くが覆われている。 The first rotary brush 3 is provided with a cylindrical tubular portion 33 extrapolated to the rotary shaft 31. In the first rotating brush 3, a plurality of first raised bands 32 are attached to the outer peripheral surface of the tubular portion 33. The first raised band 32 is a long strip in which a plurality of raised bands are embedded. The first raised band 32 is a component of the brush that comes into contact with the surface to be cleaned F as the first rotating brush 3 rotates and scrapes out dust on the surface F to be cleaned. FIG. 8 is a perspective view of the tubular portion 33 and the first raised band 32 of the first rotating brush 3. As shown in FIG. 8, a plurality of first raised bands 32 having the same shape are spirally arranged with respect to the rotation axis and engaged with the outer peripheral surface of the tubular portion 33. In the first rotating brush 3, most of the outer peripheral surface is covered with a plurality of raised bands 32 arranged in a spiral shape.

第一起毛帯32は、第一回転ブラシ3の外周面における第一回転ブラシ3の回転方向の幅32W(図6参照)が広い幅広帯で構成されている。幅広帯は、第一回転ブラシ3の回転方向において、複数の第一起毛帯32間の隙間よりも第一起毛帯32の幅32Wの方が大きい。 The first raised band 32 is composed of a wide band having a width 32 W (see FIG. 6) in the rotation direction of the first rotating brush 3 on the outer peripheral surface of the first rotating brush 3. The wide band has a width of 32 W of the first raised band 32 larger than the gap between the plurality of first raised bands 32 in the rotation direction of the first rotating brush 3.

第一起毛帯32の幅32Wは、第一回転ブラシ3の直径に応じて設定される。すなわち、第一回転ブラシ3の直径が大きいと、被清掃面Fとの接触面積が大きくなる。第一起毛帯32の回転方向の幅32Wは、被清掃面Fとの接触面積を考慮し、第一回転ブラシ3の外周長の65%以上に設定すると、より効果的に集塵効果および、被清掃面Fと集塵室23との間の空間の真空度を高めることができる。この他、第一起毛帯32が第一回転ブラシ3の全周に隙間なく形成されていてもよい。 The width 32W of the first raised band 32 is set according to the diameter of the first rotating brush 3. That is, when the diameter of the first rotating brush 3 is large, the contact area with the surface to be cleaned F becomes large. When the width 32W of the first brushed band 32 in the rotation direction is set to 65% or more of the outer peripheral length of the first rotating brush 3 in consideration of the contact area with the surface to be cleaned F, the dust collecting effect and the dust collecting effect are more effective. The degree of vacuum in the space between the surface to be cleaned F and the dust collecting chamber 23 can be increased. In addition, the first raised band 32 may be formed on the entire circumference of the first rotating brush 3 without a gap.

第一起毛帯32と遮蔽部7とは、接触してもよく、接触しなくてもよい。第一起毛帯32と遮蔽部7とが接触する場合は、集塵室23内の気密性をより高めることができる。 The first raised band 32 and the shielding portion 7 may or may not be in contact with each other. When the first raised band 32 and the shielding portion 7 come into contact with each other, the airtightness in the dust collecting chamber 23 can be further improved.

第二回転ブラシ4は、第二ブラシ収容部62に回動軸方向に沿って1つ設けられている。第二回転ブラシ4は第一回転ブラシ3の回動軸方向の長さに略等しい長さを有する。 One second rotating brush 4 is provided in the second brush accommodating portion 62 along the rotation axis direction. The second rotating brush 4 has a length substantially equal to the length in the rotation axis direction of the first rotating brush 3.

第二回転ブラシ4は、第一回転ブラシ3と同様に、円筒形の筒部43が回転シャフト41に外挿されて設けられている。第二回転ブラシ4は、回転軸方向の寸法が、筐体2の半分以上の長さを有する。 Similar to the first rotating brush 3, the second rotating brush 4 is provided with a cylindrical tubular portion 43 extrapolated to the rotating shaft 41. The second rotating brush 4 has a dimension in the rotation axis direction that is at least half the length of the housing 2.

第二回転ブラシ4は、筒部43の外周面に複数の第二起毛帯42が取り付けられている。図9は第二回転ブラシ4の筒部43および第二起毛帯42の斜視図である。図9に示すように、同一形状の複数の第二起毛帯42が、回動軸に対して螺旋状に配置されて、筒部43の外周面に係合されている。第二起毛帯42は、硬質の起毛で構成されている。第二起毛帯42は、第一起毛帯32よりも硬質の起毛の量が多い。その結果、第二回転ブラシ4のブラシ全体の硬さは、第一回転ブラシ3のブラシ全体の硬さよりも固い。ここで、第二回転ブラシ4の方が「硬質の起毛の量が多い」とは、第一回転ブラシ3が硬質の起毛を有しない場合も含む。 In the second rotating brush 4, a plurality of second raised bands 42 are attached to the outer peripheral surface of the tubular portion 43. FIG. 9 is a perspective view of the tubular portion 43 and the second raised band 42 of the second rotating brush 4. As shown in FIG. 9, a plurality of second raised bands 42 having the same shape are spirally arranged with respect to the rotation axis and engaged with the outer peripheral surface of the tubular portion 43. The second brushed band 42 is composed of hard brushed cloth. The second brushed band 42 has a larger amount of hard brushed than the first brushed band 32. As a result, the hardness of the entire brush of the second rotating brush 4 is harder than the hardness of the entire brush of the first rotating brush 3. Here, the phrase "the amount of hard brushing is larger" in the second rotating brush 4 includes the case where the first rotating brush 3 does not have hard brushing.

第一起毛帯32は、第二起毛帯42よりも起毛の密度が高い。起毛帯32,42の密度は、単位面積当たりの起毛の埋植量である。 The first brushed band 32 has a higher brushing density than the second brushed band 42. The densities of the brushed zones 32 and 42 are the amount of brushed implants per unit area.

次に、電動送風機201および吸込具1の動作及び使用態様について説明する。図1に示すように、吸込具1の使用時、掃除機本体200の吸引口203に延長管300が挿入され、ロック部205で延長管300と吸引口203との係合状態が保持される。延長管300の先端部に吸込具1の連結管9が挿入され、ロック部210により延長管300に対して、連結管9が機械的および電気的に接続された状態が保持される。 Next, the operation and usage of the electric blower 201 and the suction tool 1 will be described. As shown in FIG. 1, when the suction tool 1 is used, the extension pipe 300 is inserted into the suction port 203 of the vacuum cleaner main body 200, and the lock portion 205 maintains the engaged state between the extension pipe 300 and the suction port 203. .. The connecting pipe 9 of the suction tool 1 is inserted into the tip of the extension pipe 300, and the locking portion 210 keeps the connecting pipe 9 mechanically and electrically connected to the extension pipe 300.

吸込具1の下面29を被清掃面F上に配置した状態で、設定ボタン207の操作により掃除機本体200の電源が入れられると、吸引動作が開始され、連結管9および吸込風路26から吸引が開始される。これと同時に、吸込具1も通電状態となり、制御部10によりモータ51、52が駆動され、第一回転ブラシ3が正回転し、第二回転ブラシ4逆回転する。 When the power of the vacuum cleaner main body 200 is turned on by operating the setting button 207 with the lower surface 29 of the suction tool 1 arranged on the surface to be cleaned F, the suction operation is started and the suction operation is started from the connecting pipe 9 and the suction air passage 26. Suction is started. At the same time, the suction tool 1 is also energized, the motors 51 and 52 are driven by the control unit 10, the first rotating brush 3 rotates in the forward direction, and the second rotating brush 4 rotates in the reverse direction.

吸引状態で、ユーザの操作により吸込具1が前方向FRに移動すると、吸込具1の前方の塵埃が、第一回転ブラシ3の正回転により掻き出されながら掃除機本体200の吸引力により集塵室23内に誘導される。このとき、遮蔽部7が設けられていることにより、第一回転ブラシ3と第一ブラシ収容部61との間の隙間における前後方向の通気を抑制できる。この結果、吸引時の集塵室23と被清掃面Fとの間の空間の真空度を高めることができ、塵埃の吸込み効率を高めることができる。 When the suction tool 1 moves to the forward FR by the user's operation in the suction state, the dust in front of the suction tool 1 is collected by the suction force of the vacuum cleaner main body 200 while being scraped out by the forward rotation of the first rotating brush 3. It is guided into the dust chamber 23. At this time, by providing the shielding portion 7, it is possible to suppress ventilation in the front-rear direction in the gap between the first rotating brush 3 and the first brush accommodating portion 61. As a result, the degree of vacuum in the space between the dust collecting chamber 23 and the surface to be cleaned F during suction can be increased, and the dust suction efficiency can be improved.

また、上記吸引時、第二回転ブラシ4が逆回転しているため、吸込具1の前方向への移動に伴い、第二回転ブラシ4より前方の塵埃を集塵室23側に誘導できる。この結果、吸込具1の塵埃の集塵効率が向上する。 Further, since the second rotating brush 4 rotates in the reverse direction during the suction, the dust in front of the second rotating brush 4 can be guided to the dust collecting chamber 23 side as the suction tool 1 moves in the forward direction. As a result, the dust collecting efficiency of the suction tool 1 is improved.

さらに、第二ブラシ収容部62には、吸込開口22との境界部分に突出壁622が設けられているため、第一回転ブラシ3により後方に向かって掻き出された塵埃が、逆回転している第二回転ブラシ4と第二ブラシ収容部62との間に侵入することを抑制することができる。 Further, since the second brush accommodating portion 62 is provided with a protruding wall 622 at the boundary portion with the suction opening 22, the dust scraped backward by the first rotating brush 3 rotates in the reverse direction. It is possible to prevent the second rotating brush 4 from entering between the second rotating brush 4 and the second brush accommodating portion 62.

吸込具1は、第一回転ブラシ3ならびに第二回転ブラシ4と被清掃面Fとの当接部と、遮蔽部7とにより、集塵室23が収容部6の内外に連通する隙間を小さく抑え、真空度を高めることができる。この結果、吸込具1は、集塵性能を高めることができる。 In the suction tool 1, the gap between the dust collecting chamber 23 and the inside and outside of the accommodating portion 6 is reduced by the contact portion between the first rotating brush 3 and the second rotating brush 4 and the surface F to be cleaned, and the shielding portion 7. It can be suppressed and the degree of vacuum can be increased. As a result, the suction tool 1 can improve the dust collecting performance.

以上説明した実施形態によれば、収容部6の内面と第一回転ブラシ3との間に遮蔽部7を備えるため、第一回転ブラシ3と第一ブラシ収容部61の前端部との隙間を遮蔽できる。その結果、被清掃面Fと集塵室23との間の空間の真空度を高めることができ、吸込具1の吸引性能を高めることができる。 According to the embodiment described above, since the shielding portion 7 is provided between the inner surface of the accommodating portion 6 and the first rotating brush 3, a gap between the first rotating brush 3 and the front end portion of the first brush accommodating portion 61 is provided. Can be shielded. As a result, the degree of vacuum in the space between the surface to be cleaned F and the dust collecting chamber 23 can be increased, and the suction performance of the suction tool 1 can be improved.

以上説明した実施形態によれば、遮蔽部7は、第一回転ブラシ3の回転軸に沿って延設されているため、第一回転ブラシ3と第一ブラシ収容部61との隙間を第一回転ブラシ3の長手方向の広範囲にわたって遮蔽できる。この結果、被清掃面Fと集塵室23との間の空間の真空度を高めることができ、吸込具1の吸引性能を高めることができる。 According to the embodiment described above, since the shielding portion 7 extends along the rotation axis of the first rotating brush 3, the gap between the first rotating brush 3 and the first brush accommodating portion 61 is first. The rotary brush 3 can be shielded over a wide range in the longitudinal direction. As a result, the degree of vacuum in the space between the surface to be cleaned F and the dust collecting chamber 23 can be increased, and the suction performance of the suction tool 1 can be improved.

以上説明した実施形態によれば、第一回転ブラシ3の外径は、第二回転ブラシ4の外径より大きいため、被清掃面Fに対する第一回転ブラシ3の設置面積を広く確保できる。この結果、被清掃面Fと集塵室23との間の空間の真空度を高めることができ、吸込具1の吸引性能を高めることができる。また、第二回転ブラシ4の外径が第一回転ブラシ3の外径よりも小さい結果、モータ51,52等の収容空間を第二回転ブラシ4近傍に配置でき、小型化を図ることができる。この結果、吸込具1の高さを低くすることが可能となり、清掃時、高さが低い隙間に容易に吸込具1を進入させることができる。 According to the embodiment described above, since the outer diameter of the first rotating brush 3 is larger than the outer diameter of the second rotating brush 4, it is possible to secure a wide installation area of the first rotating brush 3 with respect to the surface to be cleaned F. As a result, the degree of vacuum in the space between the surface to be cleaned F and the dust collecting chamber 23 can be increased, and the suction performance of the suction tool 1 can be improved. Further, as a result that the outer diameter of the second rotating brush 4 is smaller than the outer diameter of the first rotating brush 3, the accommodation space for the motors 51, 52 and the like can be arranged in the vicinity of the second rotating brush 4, and the size can be reduced. .. As a result, the height of the suction tool 1 can be lowered, and the suction tool 1 can be easily entered into the gap having a low height at the time of cleaning.

以上説明した実施形態によれば、収容部6は、第一回転ブラシ3を収容する第一ブラシ収容部61と、第二回転ブラシ4を収容する第二ブラシ収容部62とを備え、各ブラシ収容部61,62は、回転ブラシ3、4の外形に沿った形状を有するため、各回転ブラシ3,4に沿った収容部6を形成できる。この結果、各回転ブラシ3,4と収容部6との間の隙間を小さく抑えることができる。遮蔽部7は、吸込具1の前方に配置された第一ブラシ収容部61の内面と第一回転ブラシ3との間に設けられているため、被清掃面Fと集塵室23との間の空間の真空度を高めることができ、吸込具1の吸引性能を向上させることができる。 According to the embodiment described above, the accommodating portion 6 includes a first brush accommodating portion 61 accommodating the first rotating brush 3 and a second brush accommodating portion 62 accommodating the second rotating brush 4, and each brush. Since the accommodating portions 61 and 62 have a shape along the outer shape of the rotating brushes 3 and 4, the accommodating portions 6 can be formed along the accommodating portions 6 and 4 along the rotating brushes 3 and 4. As a result, the gap between each of the rotating brushes 3 and 4 and the accommodating portion 6 can be kept small. Since the shielding portion 7 is provided between the inner surface of the first brush accommodating portion 61 arranged in front of the suction tool 1 and the first rotating brush 3, it is between the surface to be cleaned F and the dust collecting chamber 23. The degree of vacuum in the space can be increased, and the suction performance of the suction tool 1 can be improved.

以上説明した実施形態によれば、連結管9と連通する吸込開口22が第一回転ブラシ3と第二回転ブラシ4との間に開口するため、第一回転ブラシ3と第二回転ブラシ4との間の空間に集められた塵埃を効率良く吸引できる。さらに、第一回転ブラシ3と第二回転ブラシ4との間の集塵室23と、被清掃面Fとの間の空間の真空度を高めることができ、吸込具1の吸引性能を向上させることができる。 According to the embodiment described above, since the suction opening 22 communicating with the connecting pipe 9 opens between the first rotating brush 3 and the second rotating brush 4, the first rotating brush 3 and the second rotating brush 4 are used. Dust collected in the space between can be efficiently sucked. Further, the degree of vacuum in the space between the dust collecting chamber 23 between the first rotating brush 3 and the second rotating brush 4 and the surface to be cleaned F can be increased, and the suction performance of the suction tool 1 is improved. be able to.

以上説明した実施形態によれば、遮蔽部7は、吸込開口22よりも第一回転ブラシ3側の収容部6の内面から突出して形成されている。すなわち、吸込開口22よりも前方の第一ブラシ収容部61内に形成されているため、吸込具1の前方の隙間を遮蔽して被清掃面Fと集塵室23との間の空間の真空度を高めることができ、吸込具1の吸引性能を向上させることができる。 According to the embodiment described above, the shielding portion 7 is formed so as to project from the inner surface of the accommodating portion 6 on the first rotating brush 3 side of the suction opening 22. That is, since it is formed in the first brush accommodating portion 61 in front of the suction opening 22, the space in front of the suction tool 1 is shielded and the space between the surface to be cleaned F and the dust collecting chamber 23 is evacuated. The degree can be increased, and the suction performance of the suction tool 1 can be improved.

以上説明した実施形態によれば、第一回転ブラシ3を駆動する第一モータ51と、第二回転ブラシ4を駆動する第二モータ52とを備えるため、互いに逆方向に回転する第一回転ブラシ3と第二回転ブラシ4とを個別に駆動できる。このため、モータ51,52から各回転ブラシ3,4への動力伝達機構を簡易な構成とすることができ、吸込具1の小型化を図ることができる。この結果、吸込具1の小型化が可能となり、清掃時、狭い隙間にも容易に吸込具1を進入させることができる。この他、第一回転ブラシ3と第二回転ブラシ4とを個別のモータ51,52で駆動できる結果、例えば、各回転ブラシ3、4の回転速度を変えて駆動できる。 According to the embodiment described above, since the first motor 51 for driving the first rotary brush 3 and the second motor 52 for driving the second rotary brush 4 are provided, the first rotary brush rotates in opposite directions to each other. 3 and the second rotating brush 4 can be driven individually. Therefore, the power transmission mechanism from the motors 51 and 52 to the rotating brushes 3 and 4 can be simply configured, and the suction tool 1 can be miniaturized. As a result, the suction tool 1 can be miniaturized, and the suction tool 1 can be easily inserted into a narrow gap during cleaning. In addition, as a result of being able to drive the first rotating brush 3 and the second rotating brush 4 by individual motors 51 and 52, for example, the rotating speeds of the rotating brushes 3 and 4 can be changed and driven.

以上説明した実施形態によれば、第二回転ブラシ4が第一回転ブラシ3の長手方向の寸法に略等しい長さの一本のブラシで構成されているため、回転軸方向において均一に塵埃を回収できる。 According to the embodiment described above, since the second rotating brush 4 is composed of one brush having a length substantially equal to the length in the longitudinal direction of the first rotating brush 3, dust is uniformly distributed in the rotation axis direction. Can be recovered.

以上説明した実施形態によれば、遮蔽部7が軟質部材で形成されているため、第一回転ブラシ3の回転を妨げることなく、第一回転ブラシ3と第一ブラシ収容部61との隙間を遮蔽できる。この結果、第一回転ブラシ3を駆動する負荷の増大を防ぎ、第一回転ブラシ3の駆動時の電流値を低くすることができる。 According to the embodiment described above, since the shielding portion 7 is made of a soft member, the gap between the first rotating brush 3 and the first brush accommodating portion 61 is formed without hindering the rotation of the first rotating brush 3. Can be shielded. As a result, it is possible to prevent an increase in the load for driving the first rotating brush 3 and reduce the current value at the time of driving the first rotating brush 3.

以上説明した実施形態によれば、第二回転ブラシ4が硬質の起毛帯で構成されているため、第二回転ブラシ4が被清掃面F上の塵埃を効果的に掻き出すことができ、吸込具1の集塵性能を高めることが出来る。 According to the embodiment described above, since the second rotating brush 4 is composed of a hard brushed band, the second rotating brush 4 can effectively scrape out the dust on the surface F to be cleaned, and the suction tool. The dust collection performance of 1 can be improved.

以上説明した実施形態によれば、第一回転ブラシ3の第一起毛帯32は、第二回転ブラシ4の第二起毛帯よりも密度が高いため、被清掃面Fと第一回転ブラシ3との接触部の空気の遮蔽性を確保でき、被清掃面Fと集塵室23との間の空間の真空度を向上させることができる。加えて、第二回転ブラシ4を低い密度の第二起毛帯42を採用することにより、例えば、被清掃面Fがカーペット等である場合に、塵埃を掻き出す効果が高く、吸込具1の塵埃の捕集効果を高めることができる。 According to the embodiment described above, the first raised band 32 of the first rotating brush 3 has a higher density than the second raised band of the second rotating brush 4, so that the surface to be cleaned F and the first rotating brush 3 are used. The air shielding property of the contact portion can be ensured, and the degree of vacuum in the space between the surface to be cleaned F and the dust collecting chamber 23 can be improved. In addition, by adopting the second brushed band 42 having a low density for the second rotating brush 4, for example, when the surface F to be cleaned is a carpet or the like, the effect of scraping out the dust is high, and the dust of the suction tool 1 is removed. The collection effect can be enhanced.

以上説明した実施形態によれば、第一回転ブラシ3の第一起毛帯32は、第一回転ブラシ3の回転方向の幅が広い幅広帯で構成されているため、被清掃面Fとの接触面積を広く確保できる。このため、被清掃面Fと集塵室23との間の空間の真空度を高めることができる。この結果、吸込具1の吸引性能を高めることができる。 According to the embodiment described above, since the first raised band 32 of the first rotating brush 3 is composed of a wide band having a wide width in the rotation direction of the first rotating brush 3, it comes into contact with the surface to be cleaned F. A large area can be secured. Therefore, the degree of vacuum in the space between the surface to be cleaned F and the dust collecting chamber 23 can be increased. As a result, the suction performance of the suction tool 1 can be improved.

以上説明した実施形態によれば、電気掃除機100は、上記吸込具1を備えるため、被清掃面Fと集塵室23との間の空間の真空度を高めることができる。この結果、吸込具1の吸引性能を高めることができる。また、電気掃除機100は、塵埃の捕集効果を高めることができる。また、吸込具1の小型化が実現できる結果、電気掃除機100は、清掃時に高さの低い隙間も容易に清掃できる。 According to the embodiment described above, since the vacuum cleaner 100 includes the suction tool 1, it is possible to increase the degree of vacuum in the space between the surface to be cleaned F and the dust collecting chamber 23. As a result, the suction performance of the suction tool 1 can be improved. In addition, the vacuum cleaner 100 can enhance the effect of collecting dust. Further, as a result of the miniaturization of the suction tool 1, the electric vacuum cleaner 100 can easily clean a gap having a low height at the time of cleaning.

上記実施形態では、遮蔽部7が第一回転ブラシ3の長さと略等しい寸法である例を示したが、遮蔽部7の構成はこれに限定されない。例えば、複数の短い遮蔽部を回転軸方向に並べて配置してもよい。この場合、複数の遮蔽部間に隙間がある構成であってもよい。例えば、回転軸方向において、遮蔽部7は、吸込開口22に対応する位置に設けられていてもよい。この場合、回転軸方向における遮蔽部7の寸法は、吸込開口22よりも大きいと、遮蔽部7による集塵室23内の真空度の低下の抑制機能を効果的に発揮できる。 In the above embodiment, an example is shown in which the shielding portion 7 has a dimension substantially equal to the length of the first rotating brush 3, but the configuration of the shielding portion 7 is not limited to this. For example, a plurality of short shielding portions may be arranged side by side in the rotation axis direction. In this case, there may be a configuration in which there is a gap between the plurality of shielding portions. For example, in the rotation axis direction, the shielding portion 7 may be provided at a position corresponding to the suction opening 22. In this case, if the dimension of the shielding portion 7 in the rotation axis direction is larger than the suction opening 22, the function of suppressing the decrease in the degree of vacuum in the dust collecting chamber 23 by the shielding portion 7 can be effectively exhibited.

上記実施形態では、遮蔽部7が、軟質部材で形成される例を示したが、遮蔽部7の構成はこれに限定されない。例えば、遮蔽部が硬質部材で形成される例や、第一ブラシ収容部61が部分的に突出し、第一ブラシ収容部と遮蔽部とが一体に形成される例であってもよい。 In the above embodiment, an example in which the shielding portion 7 is formed of a soft member is shown, but the configuration of the shielding portion 7 is not limited to this. For example, there may be an example in which the shielding portion is formed of a hard member, or an example in which the first brush accommodating portion 61 partially protrudes and the first brush accommodating portion and the shielding portion are integrally formed.

上記実施形態では、遮蔽部7が第一ブラシ収容部61と吸込開口22との境界部分の近傍である凹部611の後端部に設けられている例を示したが、遮蔽部の位置はこれに限定されない。遮蔽部は、第一ブラシ収容部61と第一回転ブラシ3との隙間により、集塵室23が吸込具1の外部と通気されて集塵室23内の真空度が低下することを防止する構成であればよい。したがって、例えば、第一ブラシ収容部61における前開口27に近い位置(凹部611の前端部)や、凹部611の最も高い位置(凹部611の前後方向中央部)等に遮蔽部7を設けてもよい。遮蔽部7を凹部611の後端部に設けると、第一回転ブラシ3の正回転方向の上流側に遮蔽部7が位置し、第一ブラシ収容部61と第一回転ブラシ3との間の隙間に塵埃が溜まり難い。 In the above embodiment, an example is shown in which the shielding portion 7 is provided at the rear end portion of the recess 611 near the boundary portion between the first brush accommodating portion 61 and the suction opening 22, but the position of the shielding portion is this. Not limited to. The shielding portion prevents the dust collecting chamber 23 from being ventilated to the outside of the suction tool 1 by the gap between the first brush accommodating portion 61 and the first rotating brush 3 to reduce the degree of vacuum in the dust collecting chamber 23. It may be configured. Therefore, for example, even if the shielding portion 7 is provided at a position close to the front opening 27 (front end portion of the recess 611) in the first brush accommodating portion 61, or at the highest position of the recess 611 (center portion in the front-rear direction of the recess 611). good. When the shielding portion 7 is provided at the rear end of the recess 611, the shielding portion 7 is located on the upstream side in the forward rotation direction of the first rotating brush 3, and is located between the first brush accommodating portion 61 and the first rotating brush 3. Dust does not easily collect in the gaps.

この他、図10に示す吸込具1Aの変形例のように、第一ブラシ収容部61と吸込開口22との境界部から下方に突出する壁部を遮蔽部7Aとして形成してもよい。 In addition, as in the modified example of the suction tool 1A shown in FIG. 10, a wall portion protruding downward from the boundary portion between the first brush accommodating portion 61 and the suction opening 22 may be formed as the shielding portion 7A.

上記実施形態では、第一回転ブラシ3の第一起毛帯32が第二回転ブラシ4の第二起毛帯42よりも密度が高い例を示したが、この構成は必須ではない。例えば、第一起毛帯32の密度と第二起毛帯42の密度とが同等であってもよい。この他、第二起毛帯42の密度が第一起毛帯32の密度より高くてもよい。 In the above embodiment, the first raised band 32 of the first rotating brush 3 has a higher density than the second raised band 42 of the second rotating brush 4, but this configuration is not essential. For example, the density of the first raised band 32 and the density of the second raised band 42 may be the same. In addition, the density of the second raised band 42 may be higher than the density of the first raised band 32.

上記実施形態では、第一回転ブラシ3用の第一モータ51と、第二回転ブラシ4用の第二モータ52を備える例を示したが、第一回転ブラシ3と第二回転ブラシ4とを一つのモータで駆動してもよい。 In the above embodiment, an example including the first motor 51 for the first rotary brush 3 and the second motor 52 for the second rotary brush 4 is shown, but the first rotary brush 3 and the second rotary brush 4 are used. It may be driven by one motor.

上記実施形態では、吸込具1に制御部10を備える例を示したが、制御部10は必須ではない。例えば、制御部は、吸込具1に設けられる構成に代えて、掃除機本体200に制御部が設けられて、電気コネクタ93を通じてモータが制御される構成であってもよい。 In the above embodiment, an example in which the suction tool 1 is provided with the control unit 10 is shown, but the control unit 10 is not essential. For example, the control unit may be configured such that the vacuum cleaner main body 200 is provided with the control unit and the motor is controlled through the electric connector 93 instead of the configuration provided in the suction tool 1.

上記実施形態では、第一回転ブラシ3の外径が第二回転ブラシ4の外径より大きい例を示したが、各回転ブラシ3、4の形態はこれに限定されない。例えば、第一回転ブラシ3の外径と第二回転ブラシ4の外径とが略等しい構成であってもよい。 In the above embodiment, an example in which the outer diameter of the first rotating brush 3 is larger than the outer diameter of the second rotating brush 4 is shown, but the form of each rotating brush 3 and 4 is not limited to this. For example, the outer diameter of the first rotating brush 3 and the outer diameter of the second rotating brush 4 may be substantially equal to each other.

上記実施形態では、第二回転ブラシ4が一本の例を示したが、第二回転ブラシ4が複数設けられていてもよい。例えば、回転軸方向における吸込風路26の両側にそれぞれ第二回転ブラシを設ける構成であってもよい。 In the above embodiment, the example of one second rotating brush 4 is shown, but a plurality of second rotating brushes 4 may be provided. For example, the second rotating brush may be provided on both sides of the suction air passage 26 in the direction of the rotation axis.

上記実施形態では、第一回転ブラシ3の複数の第一起毛帯が同一形状の例を示したが、第一起毛帯の構成はこれに限定されない。例えば、回転方向の幅が異なる起毛を回転方向に交互に配設した起毛帯であってもよい。第二回転ブラシ4の第二起毛帯についても同様である。 In the above embodiment, an example in which a plurality of first raised bands of the first rotating brush 3 have the same shape is shown, but the configuration of the first raised bands is not limited to this. For example, it may be a brushed band in which brushes having different widths in the rotation direction are alternately arranged in the rotation direction. The same applies to the second raised band of the second rotating brush 4.

上記実施形態では、延長管300を介して吸引口203と吸込具1の連結管9とが接続される例を示したが、延長管300は必須ではない。例えば、吸引口203に直接吸込具1が取り付けられる構成や、吸込具1の連結管9が長尺に構成されていてもよい。 In the above embodiment, an example is shown in which the suction port 203 and the connecting pipe 9 of the suction tool 1 are connected via the extension pipe 300, but the extension pipe 300 is not essential. For example, the suction tool 1 may be directly attached to the suction port 203, or the connecting pipe 9 of the suction tool 1 may be long.

本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。 Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope of the invention described in the claims and the equivalent scope thereof, as are included in the scope and gist of the invention.

1、1A・・・掃除機用吸込具、2・・・筐体、3・・・第一回転ブラシ、4・・・第二回転ブラシ、6・・・収容部、7、7A・・・遮蔽部、9・・・連結管、22・・・吸込開口、32・・・第一起毛帯、42・・・第二起毛帯、51・・・第一モータ、52・・・第二モータ、100・・・電気掃除機、200・・・掃除機本体、611・・・凹部 1, 1A ... Vacuum cleaner suction tool, 2 ... Housing, 3 ... First rotation brush, 4 ... Second rotation brush, 6 ... Storage unit, 7, 7A ... Shielding part, 9 ... connecting pipe, 22 ... suction opening, 32 ... first brushed band, 42 ... second brushed band, 51 ... first motor, 52 ... second motor , 100 ... electric vacuum cleaner, 200 ... vacuum cleaner body, 611 ... concave

Claims (10)

掃除機本体と直接的または間接的に接続される連結管と、
少なくとも下方が開放された第一ブラシ収容部と、
少なくとも下方が開放された第二ブラシ収容部と、
前記第一ブラシ収容部と前記第二ブラシ収容部との間に開口した吸込開口と、
前記吸込開口と前記連結管とを連通させる吸込風路を有した筐体と、
前記第一ブラシ収容部に配置された第一回転ブラシと、
前記第二ブラシ収容部に配置された第二回転ブラシと、を備え、
前記第一ブラシ収容部は、前記第一ブラシ収容部の後端部に設けられ、前記第一ブラシ収容部と前記第一回転ブラシとの間の隙間の少なくとも一部を遮蔽する遮蔽部を備え、
前記第一回転ブラシおよび前記第二回転ブラシは、それぞれ被清掃面との接触部側から前記吸込開口に向かう方向に互いに逆方向に回転する掃除機用吸込具。
A connecting pipe that is directly or indirectly connected to the vacuum cleaner body,
At least the first brush housing with the lower part open,
At least the second brush housing with the lower part open,
A suction opening opened between the first brush accommodating portion and the second brush accommodating portion,
A housing having a suction air passage that allows the suction opening and the connecting pipe to communicate with each other.
The first rotating brush arranged in the first brush accommodating portion and
The second rotating brush arranged in the second brush accommodating portion is provided.
The first brush accommodating portion is provided at the rear end portion of the first brush accommodating portion, and includes a shielding portion that shields at least a part of the gap between the first brush accommodating portion and the first rotating brush. ,
The first rotating brush and the second rotating brush are suction tools for a vacuum cleaner that rotate in opposite directions from the contact portion side with the surface to be cleaned toward the suction opening .
前記第一ブラシ収容部は、前記第一回転ブラシの外形に沿う曲面状の凹部を有し、
前記遮蔽部は、前記凹部の内面である
請求項1に記載の掃除機用吸込具。
The first brush accommodating portion has a curved concave portion along the outer shape of the first rotating brush.
The vacuum cleaner suction tool according to claim 1, wherein the shielding portion is an inner surface of the recess.
前記遮蔽部は前記第一ブラシ収容部と一体に形成されている
請求項1または請求項2に記載の掃除機用吸込具。
The vacuum cleaner suction tool according to claim 1 or 2, wherein the shielding portion is integrally formed with the first brush accommodating portion.
前記遮蔽部は前記第一ブラシ収容部の内面から突出して形成されている
請求項1から請求項3のいずれか一項に記載の掃除機用吸込具。
The vacuum cleaner suction tool according to any one of claims 1 to 3, wherein the shielding portion is formed so as to project from the inner surface of the first brush accommodating portion.
前記遮蔽部は前記第一ブラシ収容部と前記吸込開口との境界部に形成されている
請求項1から請求項4のいずれか一項に記載の掃除機用吸込具。
The vacuum cleaner suction tool according to any one of claims 1 to 4, wherein the shielding portion is formed at a boundary portion between the first brush accommodating portion and the suction opening.
前記遮蔽部は、前記第一回転ブラシの回転軸に沿って延設されている
請求項1から請求項5のいずれか一項に記載の掃除機用吸込具。
The vacuum cleaner suction tool according to any one of claims 1 to 5, wherein the shielding portion extends along the rotation axis of the first rotating brush.
前記第二回転ブラシは、1本の回転ブラシで構成されるとともに、前記第二回転ブラシの回転軸に沿う方向において前記筐体の半分以上の長さを有する
請求項1から請求項のいずれか一項に記載の掃除機用吸込具。
Any of claims 1 to 6 , wherein the second rotating brush is composed of one rotating brush and has a length of half or more of the housing in a direction along the rotation axis of the second rotating brush. The suction tool for vacuum cleaners described in item 1.
前記第一回転ブラシは、外周に前記第一回転ブラシの回転方向に並べられた複数の第一起毛帯を有し、
前記回転方向における前記第一起毛帯の幅は、前記回転方向における前記複数の第一起毛帯の間の隙間の幅よりも大きい
請求項1から請求項のいずれか一項に記載の掃除機用吸込具。
The first rotating brush has a plurality of first raised bands arranged in the rotation direction of the first rotating brush on the outer periphery thereof.
The vacuum cleaner according to any one of claims 1 to 7 , wherein the width of the first raised band in the rotation direction is larger than the width of the gap between the plurality of first raised bands in the rotation direction. Suction tool for.
前記第一回転ブラシは、前記第二回転ブラシよりも起毛の密度が高い
請求項1から請求項のいずれか一項に記載の掃除機用吸込具。
The suction tool for a vacuum cleaner according to any one of claims 1 to 8 , wherein the first rotating brush has a higher brushing density than the second rotating brush.
前記掃除機本体と、
請求項1から請求項のいずれか一項に記載の掃除機用吸込具と、
を備える電気掃除機。
With the vacuum cleaner body
The vacuum cleaner suction device according to any one of claims 1 to 9 .
Equipped with a vacuum cleaner.
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