JP2020103486A - Suction port body of vacuum cleaner and vacuum cleaner including the same - Google Patents

Suction port body of vacuum cleaner and vacuum cleaner including the same Download PDF

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JP2020103486A
JP2020103486A JP2018243954A JP2018243954A JP2020103486A JP 2020103486 A JP2020103486 A JP 2020103486A JP 2018243954 A JP2018243954 A JP 2018243954A JP 2018243954 A JP2018243954 A JP 2018243954A JP 2020103486 A JP2020103486 A JP 2020103486A
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vacuum cleaner
rotary cleaning
cleaning body
rotary
suction
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Inventor
田島　泰治
Taiji Tajima
泰治 田島
将 矢野
Masaru Yano
将 矢野
剛一 長田
Koichi Osada
剛一 長田
敦史 倉田
Atsushi Kurata
敦史 倉田
祐樹 酒井
Yuki Sakai
祐樹 酒井
貴弘 中居
Takahiro Nakai
貴弘 中居
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Hitachi Global Life Solutions Inc
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Hitachi Global Life Solutions Inc
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Abstract

To provide a suction port body of a vacuum cleaner and the vacuum cleaner including the suction port body which improves cleaning performance by enhancing airtightness between a suction port body and a cleaning surface and also is inexpensive and convenient without using an expensive electric motor.SOLUTION: Rib shape projections are consecutively arranged from one end to the other end of a brush chamber on an inner wall of the brush chamber in a rotation axis direction of a rotary cleaning body so as to have contact with an outer periphery of the rotary cleaning body.SELECTED DRAWING: Figure 7

Description

本発明は、電気掃除機の吸口体及びこれを備えた電気掃除機に関する。 The present invention relates to a suction body of a vacuum cleaner and a vacuum cleaner including the suction body.

本技術分野の背景技術として、特開2017-213409号公報（特許文献１）がある。この公報に開示されている掃除機ヘッドのブラシバーは、複数のラジアル方向に延在する剛毛ストリップと、剛毛ストリップ同士の間に間隙を設けて配置されブラシバーの領域の周方向長さ及びアキシアル方向長さの略全体に亘って延在しているシール材料ストリップと、ブラシバーを少なくとも部分的に囲んでいるチャンバと、チャンバの下側部分に形成された汚染空気入口と、ブラシバーを露出させている前方開口部とを形成しているハウジングを備え、回転するブラシバーがハウジングに密着するようにチャンバの内部に配置されることで、前方開口部を通過する空気の流れを制限し、清浄すべき表面との間におけるシール効果が損なわれず、塵埃が内部に引き込まれる。 As a background art of this technical field, there is JP-A-2017-213409 (Patent Document 1). The brush bar of the vacuum cleaner head disclosed in this publication has a plurality of radial bristle strips, and circumferential lengths and axial lengths of the brush bar regions arranged with a gap between the bristle strips. A strip of sealing material extending over substantially the entire length of the chamber, a chamber at least partially surrounding the brush bar, a contaminated air inlet formed in the lower portion of the chamber, and a front side exposing the brush bar. A housing defining an opening, and a rotating brush bar disposed inside the chamber such that it is in intimate contact with the housing to limit the flow of air through the front opening and to provide a surface to be cleaned. The sealing effect is not impaired, and dust is drawn inside.

特開2017-213409号公報JP 2017-213409 JP

しかしながら特許文献１に記載の掃除機ヘッドは、回転するブラシバーがハウジングに密着するようにチャンバの内部に配置されているため，ブラシバーとハウジング内壁との接触抵抗が大きく，これに打ち勝つ回転トルクを発生させる高価な電動機を用いる必要があり，コストが増大する恐れがあった。また，高い回転トルクを発生させる電動機は質量が大きく，結果掃除機ヘッドも重くなり，使い勝手が悪くなる恐れがあった。 However, the vacuum cleaner head described in Patent Document 1 has a large contact resistance between the brush bar and the inner wall of the housing because the rotating brush bar is arranged inside the chamber so as to be in close contact with the housing, and a rotational torque that overcomes this is generated. It was necessary to use an expensive electric motor, which could increase the cost. In addition, the electric motor that generates a high rotational torque has a large mass, and as a result, the cleaner head also becomes heavy, which may deteriorate usability.

本発明の目的は、吸口体と清掃面との気密性を向上させることにより，掃除性能を高めるとともに，高価な電動機を用いることなく，安価で使い勝手が良い電気掃除機の吸口体およびこれを備えた電気掃除機を提供することにある。 The object of the present invention is to improve the cleaning performance by improving the airtightness between the suction body and the cleaning surface, and at the same time, to provide a suction body of an electric vacuum cleaner which is inexpensive and easy to use without using an expensive electric motor, and to provide the same. To provide an electric vacuum cleaner.

本発明の目的は、リブ状突起物を，前記ブラシ室内壁に，前記回転清掃体の外周に接するように，かつ前記回転清掃体回転軸方向において，前記ブラシ室の端から端まで連続的に設けることにより，達成される。 An object of the present invention is to provide rib-shaped projections on the inner wall of the brush so as to contact the outer periphery of the rotary cleaning body, and continuously from the end of the brush chamber in the rotary cleaning body rotation axis direction. It is achieved by providing.

本発明によれば、リブ状突起物が，回転清掃体の外周に接しているため，ブラシ室の気密が向上し，集塵性能が向上する。かつ，回転ブラシとブラシ室内壁との接触抵抗が小さいため，回転トルクの小さい安価な電動機を用いることができ，低コスト化が図れる。また，回転トルクの小さい軽量な電動機を用いることができ，使い勝手の向上が図れる。 According to the present invention, since the rib-shaped protrusion is in contact with the outer periphery of the rotary cleaning body, the airtightness of the brush chamber is improved and the dust collection performance is improved. Moreover, since the contact resistance between the rotating brush and the inner wall of the brush is small, an inexpensive electric motor with small rotating torque can be used, and the cost can be reduced. In addition, a lightweight electric motor with a small rotating torque can be used, which improves usability.

本発明に係る電気掃除機の全体を示す外観斜視図である。It is an appearance perspective view showing the whole vacuum cleaner concerning the present invention. 本発明に係る実施例１の吸口体の上面図である。It is a top view of the mouthpiece of Example 1 concerning the present invention. 本発明に係る実施例１の吸口体の底面図である。It is a bottom view of the mouthpiece of Example 1 concerning the present invention. 本発明に係る実施例１の吸口体の側面図である。It is a side view of the mouthpiece of Example 1 concerning the present invention. 本発明に係る実施例１の吸口体の上側部分を取り外した状態の上面図である。It is a top view of the state which removed the upper part of the mouthpiece of Example 1 concerning the present invention. 本発明に係る実施例１の吸口体の回転清掃体を取り外した状態の底面図である。It is a bottom view of the state which removed the rotation cleaning body of the mouthpiece of Example 1 concerning the present invention. 図２に記載の吸口体のＡ−Ａ断面図である。It is an AA sectional view of the mouthpiece described in FIG. 本発明に係る実施例１の吸口体の回転清掃体の構成を示す斜視図である。It is a perspective view which shows the structure of the rotary cleaning body of the suction body of Example 1 which concerns on this invention. 本発明に係る実施例２の吸口体の回転清掃体を取り外した状態の底面図である。It is a bottom view of the state which removed the rotation cleaning body of the mouthpiece of Example 2 concerning the present invention. 本発明に係る実施例３の吸口体の回転清掃体を取り外した状態の底面図である。It is a bottom view of the state which removed the rotation cleaning body of the mouthpiece of Example 3 concerning the present invention.

以下、各実施例について図面を参照して説明する。特に文章中で特定する以外は、図面中に記載の方向（前、後、右、左、上、下）に従う。 Hereinafter, each embodiment will be described with reference to the drawings. Unless otherwise specified in the text, the directions (front, back, right, left, top, bottom) described in the drawings are followed.

以下、本発明に係る実施例１について図面を参照して説明する。図１に本発明の実施例１に係る電気掃除機の外観図を示す。電気掃除機１は、操作スイッチＳＷ等が設けられた掃除機本体２と、延長管５と、吸口体６とで構成されている。 Hereinafter, a first embodiment according to the present invention will be described with reference to the drawings. FIG. 1 shows an external view of an electric vacuum cleaner according to a first embodiment of the present invention. The electric vacuum cleaner 1 is composed of a cleaner main body 2 provided with operation switches SW, an extension pipe 5, and a suction body 6.

掃除機本体２は、吸引力を発生させる電動送風機２ａ、この電動送風機２ａの吸引力で集塵した塵埃を収容する集塵部２ｂなどを備えている。なお、本実施例では、いわゆるサイクロン式の電気掃除機を例に挙げて説明するが、いわゆる紙パック式の電気掃除機に適用してもよい。 The cleaner main body 2 includes an electric blower 2a that generates a suction force, a dust collecting portion 2b that stores dust collected by the suction force of the electric blower 2a, and the like. In this embodiment, a so-called cyclone type vacuum cleaner will be described as an example, but the present invention may be applied to a so-called paper pack type vacuum cleaner.

延長管５の一端は、掃除機本体２の集塵部２ｂと連通するように掃除機本体２の接続口２ｃに接続されている。また、延長管５の他端は、吸口体６に接続されている。また延長管５は、図示しない通風路が連通しており，掃除機本体２から給電される図示しない給電端子を備えている。 One end of the extension pipe 5 is connected to the connection port 2c of the cleaner body 2 so as to communicate with the dust collecting portion 2b of the cleaner body 2. The other end of the extension pipe 5 is connected to the suction body 6. Further, the extension pipe 5 is connected to a ventilation passage (not shown) and is provided with a power supply terminal (not shown) to which power is supplied from the cleaner body 2.

手元操作スイッチＳＷを操作することによって、電動送風機２ａの運転と停止や強中弱の切り替え、吸口体６に設けられた電動機４０（図５参照）の運転と停止が可能となっている。 By operating the hand operation switch SW, it is possible to operate and stop the electric blower 2a, switch between high and medium strength, and operate and stop the electric motor 40 (see FIG. 5) provided in the suction body 6.

２ｄは，掃除機本体２および吸口体６の駆動用電源である充電式電池である。 2d is a rechargeable battery that is a power source for driving the cleaner body 2 and the suction body 6.

図２は、吸口体の上面図である。図２に示すように、吸口体６は、上面視において略Ｔ字形状を呈する吸口ケース１０と、吸口ケース１０に連結される吸口継手１３とを備えている。 FIG. 2 is a top view of the mouthpiece. As shown in FIG. 2, the mouthpiece 6 includes a mouthpiece case 10 having a substantially T-shape in a top view, and a mouthpiece joint 13 connected to the mouthpiece case 10.

吸口ケース１０は、上面視において、左右方向（幅方向）に細長く形成された吸口本体１１と、吸口本体１１の左右方向の中央部に吸口継手１３と連結される連結部１２とを備えている。連結部１２には、吸口本体１１と吸口継手１３とを連通させる流路Ｒ（図３参照）が形成されている。 The mouthpiece case 10 includes a mouthpiece body 11 that is elongated in the left-right direction (width direction) in a top view, and a connecting portion 12 that is connected to the mouthpiece joint 13 at the center of the mouthpiece body 11 in the left-right direction. .. A flow path R (see FIG. 3) that connects the mouthpiece main body 11 and the mouthpiece joint 13 is formed in the connecting portion 12.

吸口本体１１には、前端面から左右側面にかけてバンパ１１ａが設けられている。バンパ１１ａは、ゴムやエラストマー等の弾性材料から形成されており、使用時に吸口本体１１内の気密を確保するとともに、電気掃除機１（図１参照）の使用時に吸口本体１１が家具等に衝突した際に、当該家具等への傷付き防止と吸口本体１１への衝撃を吸収する緩衝材の役割を果たしている。 The mouthpiece main body 11 is provided with a bumper 11a extending from the front end surface to the left and right side surfaces. The bumper 11a is made of an elastic material such as rubber or elastomer to ensure airtightness inside the suction body 11 during use, and the suction body 11 collides with furniture or the like when the electric vacuum cleaner 1 (see FIG. 1) is used. In doing so, it serves as a cushioning material that prevents damage to the furniture and the like and absorbs impact on the mouthpiece body 11.

吸口継手１３は、連結部１２に対して回動自在に連結される第１連結部１４と、この第１連結部１４に対して回動自在に連結される第２連結部１５とを備えている。第１連結部１４は、図２の上面視において略Ｄ字形状を呈し、連結部１２と連結される円筒形状の軸１４ａを有している。この軸１４ａは、軸方向が吸口本体１１の左右方向であって、軸１４ａの両端部が連結部１２に形成された軸受部１２ｇ（図５参照）に支持されている。また、第１連結部１４は、床面（清掃面）Ｍ（図４参照）に対して略平行な状態から略垂直な状態まで回動可能となるように構成されている。すなわち、第１連結部１４を吸口ケース１０に対して軸１４ａを支点として回動させることによって、延長管５（図１参照）を床面Ｍ（図４参照）に略平行な状態と略垂直な状態との間において回動させることができる。 The mouthpiece joint 13 includes a first connecting portion 14 rotatably connected to the connecting portion 12, and a second connecting portion 15 rotatably connected to the first connecting portion 14. There is. The first connecting portion 14 has a substantially D shape in a top view of FIG. 2, and has a cylindrical shaft 14 a connected to the connecting portion 12. The shaft 14a has an axial direction that is the left-right direction of the suction port main body 11, and both ends of the shaft 14a are supported by bearing portions 12g (see FIG. 5) formed in the connecting portion 12. The first connecting portion 14 is configured to be rotatable from a state substantially parallel to the floor surface (cleaning surface) M (see FIG. 4) to a state substantially vertical. That is, by rotating the first connecting portion 14 with respect to the mouthpiece case 10 with the shaft 14a as a fulcrum, the extension pipe 5 (see FIG. 1) is substantially parallel to the floor M (see FIG. 4). It can be rotated between the different states.

第２連結部１５は、第１連結部１４に対して吸口本体１１の左右方向に（図２の紙面時計回り方向および反時計回り方向に）回動可能となるように構成されている。これにより、例えば、延長管５を床面Ｍに対して略垂直にした状態から、延長管５を床面Ｍに略平行な状態に向けて倒すことができる。また、第２連結部１５には、給電が行われる給電端子１５ａが設けられている。なお、本実施例の電気掃除機１（図１参照）では、吸口体６に給電する電力を、掃除機本体２から延長管５を通じて供給するように構成している。 The second connecting portion 15 is configured to be rotatable with respect to the first connecting portion 14 in the left-right direction of the mouthpiece body 11 (clockwise and counterclockwise in the plane of FIG. 2). Thereby, for example, the extension pipe 5 can be tilted from a state in which the extension pipe 5 is substantially perpendicular to the floor surface M to a state in which the extension pipe 5 is substantially parallel to the floor surface M. In addition, the second connecting portion 15 is provided with a power feeding terminal 15a for feeding power. The electric vacuum cleaner 1 of this embodiment (see FIG. 1) is configured so that the electric power supplied to the suction body 6 is supplied from the cleaner main body 2 through the extension tube 5.

図３は、吸口体の底面図である。図４は、吸口体の側面図である。図３および図４に示すように、吸口体６は、回転清掃体（回転ブラシ）２０を備えている。吸口ケース１０（吸口本体１１）には、底面（清掃面と向き合う面）に開口部を有するブラシ室Ｑが形成されている。 FIG. 3 is a bottom view of the mouthpiece. FIG. 4 is a side view of the mouthpiece. As shown in FIGS. 3 and 4, the suction body 6 includes a rotary cleaning body (rotary brush) 20. The suction case 10 (suction body 11) is provided with a brush chamber Q having an opening on the bottom surface (the surface facing the cleaning surface).

回転清掃体２０は、吸口本体１１の左右方向に沿って前後方向の前側に配置され、ブラシ室Ｑ内に回転可能に支持されている。また、回転清掃体２０は、吸口本体１１の左右方向（回転清掃体２０の軸方向）の一端側から他端側まで連続して設けられている。 The rotary cleaning body 20 is disposed on the front side in the front-rear direction along the left-right direction of the suction port body 11, and is rotatably supported in the brush chamber Q. The rotary cleaning body 20 is continuously provided from one end side to the other end side in the left-right direction (axial direction of the rotary cleaning body 20) of the suction port body 11.

また、回転清掃体２０は、硬さや高さ等が異なるブラシなど複数種類のブラシ２０ａ、２０ｂを備え、各ブラシ２０ａ、２０ｂが，らせん状に配設されている。 Further, the rotary cleaning body 20 includes a plurality of types of brushes 20a and 20b such as brushes having different hardness and height, and the brushes 20a and 20b are spirally arranged.

吸口体６は、吸口ケース１０の底面に、ブラシ駆動スイッチ１６、車輪１７を備えている。 The suction body 6 includes a brush drive switch 16 and wheels 17 on the bottom surface of the suction case 10.

ブラシ駆動スイッチ１６は、吸口体６の底面が床面Ｍ（清掃面）に接触しているか否かを検出するスイッチであり、車輪１６ａとともに構成されている。この車輪１６ａは、ばね等の付勢手段によって常に吸口ケース１０の底面から一部が突出するように設けられている。そして、車輪１６ａが吸口ケース１０から飛び出して床面Ｍと接触していないと検出されたときには、回路基板５０（制御基板）（図５参照）の制御によって電動機４０（図５参照）の駆動が停止され、回転清掃体２０の回転が停止する。また、車輪１６ａが押し込まれて床面Ｍと接触していると検出されたときには、回路基板５０の制御によって電動機４０が駆動され、回転清掃体２０が回転する。 The brush drive switch 16 is a switch that detects whether the bottom surface of the suction body 6 is in contact with the floor surface M (cleaning surface), and is configured with the wheels 16a. The wheel 16a is provided such that a part of the wheel 16a always projects from the bottom surface of the mouthpiece case 10 by a biasing means such as a spring. Then, when it is detected that the wheel 16a jumps out of the mouthpiece case 10 and is not in contact with the floor surface M, the electric motor 40 (see FIG. 5) is driven by the control of the circuit board 50 (control board) (see FIG. 5). The rotation of the rotary cleaning body 20 is stopped. Further, when it is detected that the wheel 16a is pushed in and is in contact with the floor surface M, the electric motor 40 is driven by the control of the circuit board 50, and the rotary cleaning body 20 rotates.

車輪１７は、操作管４で操作される前後動や回転操作の応力を受けて吸口体６の底面を床面Ｍに密着させ、これにより吸口体６の操作性能を向上する役割を有している。 The wheel 17 has a role of bringing the bottom surface of the suction body 6 into close contact with the floor surface M under the stress of the forward/backward movement or the rotation operation operated by the operation pipe 4, thereby improving the operation performance of the suction body 6. There is.

固定刷毛３０は，吸口ケース１０の底面から床面Ｍ（清掃面）に接するように設けられており，ブラシ室Ｑの気密性を向上させ微細な塵埃の集塵性能を向上させるとともに，回転清掃体２０によりはじかれた塵埃が，吸口ケース１０の底面と床面Ｍ（清掃面）との隙間をすり抜けて吸口体６の後方へ出てしまうのを防ぐ役目をしている。 The fixed brush 30 is provided so as to come into contact with the floor surface M (cleaning surface) from the bottom surface of the suction case 10, improves the airtightness of the brush chamber Q to improve the performance of collecting fine dust, and the rotary cleaning. It serves to prevent the dust repelled by the body 20 from passing through the gap between the bottom surface of the mouthpiece case 10 and the floor surface M (cleaning surface) and exiting behind the mouthpiece body 6.

図５は、吸口体６の吸口ケース１０の上側部分を取り外した状態の上面図である。図５に示すように、吸口体６は、回転清掃体２０（図３参照）後方に、回転清掃体２０を駆動する電動機４０および電動機４０を制御する回路基板５０を備えている。 FIG. 5 is a top view of the suction body 6 with the upper portion of the suction case 10 removed. As shown in FIG. 5, the suction body 6 includes a motor 40 that drives the rotary cleaning body 20 and a circuit board 50 that controls the electric motor 40 behind the rotary cleaning body 20 (see FIG. 3 ).

電動機４０は、吸口本体１１の左右方向の一端側に取り付けられている。また、電動機４０は、その出力軸が吸口本体１１の左右方向と平行に配置されている。また、電動機４０の出力軸は、左右方向の一端側に向けて延び、吸口本体１１内の一端部（図示左側の端部）において、歯付きベルト４１を介して回転清掃体２０と連結されている。 The electric motor 40 is attached to one end of the mouthpiece body 11 in the left-right direction. The output shaft of the electric motor 40 is arranged parallel to the left-right direction of the suction port main body 11. Further, the output shaft of the electric motor 40 extends toward one end side in the left-right direction and is connected to the rotary cleaning body 20 via the toothed belt 41 at one end portion (end portion on the left side in the drawing) inside the suction port body 11. There is.

回路基板５０は、吸口本体１１の左右方向で電動機４０とは反対側に取り付けられている。また、回路基板５０は、長辺が左右方向に沿って配置された長方形状の基板を有し、実装面が鉛直方向上向きの状態で吸口本体１１内に配置されている。なお、実装面は、必ずしも鉛直方向上向きに限定されず、水平方向に対して傾斜してもよく、前後方向を向くように（縦向きに）してもよい。 The circuit board 50 is attached on the side opposite to the electric motor 40 in the left-right direction of the mouthpiece body 11. The circuit board 50 has a rectangular board whose long sides are arranged along the left-right direction, and is arranged inside the mouthpiece body 11 with the mounting surface facing vertically upward. Note that the mounting surface is not necessarily limited to be vertically upward, and may be inclined with respect to the horizontal direction or may be oriented in the front-rear direction (vertically).

図６は、回転清掃体２０を取り外した状態の吸口体の底面図である。ブラシ室Ｑの内壁には，リブ状突起物（Lib1〜Lib5）が，吸口本体１１の左右方向に連続して設けられている。 FIG. 6 is a bottom view of the suction body with the rotary cleaning body 20 removed. On the inner wall of the brush chamber Q, rib-shaped protrusions (Lib1 to Lib5) are continuously provided in the left-right direction of the suction port main body 11.

図７は図２におけるＡ−Ａ断面図の回転清掃体２０付近の拡大図である。図７において、ＲＣは，回転清掃体２０の各ブラシ２０ａ、２０ｂを，らせん状に保持するロータリーコア，L1は，回転清掃体２０の回転中心軸からバンパ１１ａの前面までの距離，H1は，バンパ１１ａの先端から床面Ｍ（清掃面）までの距離，H2は回転清掃体２０の回転中心軸から床面Ｍ（清掃面）までの距離，R1は，ロータリーコアRCの回転半径，R2は回転清掃体２０の回転半径，θは，バンパ１１ａの先端からリブ状突起物Lib5までの回転清掃体２０の周囲を覆っている角度である。図７に示すように，リブ状突起物（Lib1〜Lib5）は，回転清掃体２０の各ブラシ２０ａ、２０ｂの表面を接するように，かつ吸口本体１１の左右方向に連続して設けられているため，バンパ１１ａの先端から床面Ｍ（清掃面）までの隙間から流入した空気は，回転清掃体２０の上部を通過して流路Ｒに流れることが困難になり，ブラシ室Ｑの気密性が向上し，微細な塵埃の集塵性能を向上させることができる。また，バンパ１１ａの先端から床面Ｍ（清掃面）までの隙間から流入した空気は，回転清掃体２０の下部で，各ブラシ２０ａ、２０ｂが床面Ｍ（清掃面）と接触する部分を通過するので，各ブラシ２０ａ、２０ｂが床面Ｍ（清掃面）からはく離させた塵埃を効率的に流路Ｒに運搬することができる。 FIG. 7 is an enlarged view of the vicinity of the rotary cleaning body 20 in the AA sectional view in FIG. In FIG. 7, RC is a rotary core that holds the brushes 20a and 20b of the rotary cleaning body 20 in a spiral shape, L1 is a distance from the central axis of rotation of the rotary cleaning body 20 to the front surface of the bumper 11a, and H1 is The distance from the tip of the bumper 11a to the floor surface M (cleaning surface), H2 is the distance from the rotation center axis of the rotary cleaning body 20 to the floor surface M (cleaning surface), R1 is the radius of rotation of the rotary core RC, and R2 is The radius of rotation θ of the rotary cleaning body 20 is the angle covering the periphery of the rotary cleaning body 20 from the tip of the bumper 11a to the rib-shaped protrusion Lib5. As shown in FIG. 7, the rib-shaped protrusions (Lib1 to Lib5) are continuously provided in contact with the surfaces of the brushes 20a and 20b of the rotary cleaning body 20 and in the left-right direction of the suction port main body 11. Therefore, it is difficult for the air flowing in from the gap from the tip of the bumper 11a to the floor surface M (cleaning surface) to pass through the upper portion of the rotary cleaning body 20 and flow into the flow path R, and the airtightness of the brush chamber Q is reduced. And the performance of collecting fine dust can be improved. In addition, the air that has flowed in through the gap from the tip of the bumper 11a to the floor surface M (cleaning surface) passes through the portion where the brushes 20a and 20b contact the floor surface M (cleaning surface) at the lower part of the rotary cleaning body 20. Therefore, the dust separated by the brushes 20a and 20b from the floor surface M (cleaning surface) can be efficiently transported to the flow path R.

また，回転清掃体２０の回転半径R2は、ロータリーコアRCの回転半径の２倍より小さいため，回転清掃体２０の各ブラシ２０ａ、２０ｂとロータリーコアRCの隙間が狭く，通過抵抗が大きいため，ブラシ室Ｑの気密性がさらに向上する。 Further, since the rotation radius R2 of the rotary cleaning body 20 is smaller than twice the rotation radius of the rotary core RC, the clearance between the brushes 20a and 20b of the rotary cleaning body 20 and the rotary core RC is narrow, and the passage resistance is large. The airtightness of the brush chamber Q is further improved.

また，バンパ１１ａを含めたブラシ室Ｑのうち、回転清掃体２０の各ブラシ２０ａ、２０ｂと接している範囲θが、回転清掃体２０の周方向において９０度以上かつ回転軸方向において前記回転清掃体の長さの半分以上の領域であるため，ブラシ室Ｑの気密性がさらに向上する。 Further, in the brush chamber Q including the bumper 11a, the range θ in contact with the brushes 20a and 20b of the rotary cleaning body 20 is 90 degrees or more in the circumferential direction of the rotary cleaning body 20 and the rotary cleaning in the rotational axis direction. Since the area is more than half the length of the body, the airtightness of the brush chamber Q is further improved.

また，回転清掃体２０の回転中心軸とバンパー１１ａの先端までの水平距離L１は、前回転清掃体２０の半径R２より大きくかつ半径R２の１．２倍より小さいため，吸口体６前方壁際の塵埃の集塵性能が向上する。 Further, since the horizontal distance L1 between the rotation center axis of the rotary cleaning body 20 and the tip of the bumper 11a is larger than the radius R2 of the front rotary cleaning body 20 and smaller than 1.2 times the radius R2, the suction body 6 near the front wall. The dust collection performance is improved.

また，バンパー１１ａの開口床面高さH1は、４ｍｍより大きくかつ回転清掃体２０の回転中心軸から床面Ｍ（清掃面）までの距離H2より小さいので，比較的大きな塵埃も吸引可能で，かつ回転清掃体２０に指等が触れる恐れが少なく，安全性が高いという効果もある。 Further, since the opening floor surface height H1 of the bumper 11a is larger than 4 mm and smaller than the distance H2 from the rotation center axis of the rotary cleaning body 20 to the floor surface M (cleaning surface), relatively large dust can be sucked, In addition, there is little danger that a finger or the like touches the rotary cleaning body 20, and there is an effect that safety is high.

図８は回転清掃体２０の構成を示す斜視図である。回転清掃体２０は、前記ロータリーコアRCの長手方向に形成された複数のらせん状の溝に，各ブラシ２０ａ、２０ｂを挿入して構成される。なお、本実施の形態例では、２種類のブラシ２０ａ、２０ｂを配設した場合を例に挙げて説明したが、これに限定されるものではなく、１種類であってもよく、３種類以上であってもよく、また，らせん状に配置されたブラシ間にゴムなどの弾性材料からなるブレード部材をらせん状に配置する構成を追加してもよく、適宜変更することができる。このように，回転清掃体２０のブラシ構成を容易に変更できるので，たとえば木床用や絨毯用のような目的別の吸口体に対応が容易であるという効果もある。 FIG. 8 is a perspective view showing the configuration of the rotary cleaning body 20. The rotary cleaning body 20 is configured by inserting the brushes 20a and 20b into a plurality of spiral grooves formed in the longitudinal direction of the rotary core RC. In the present embodiment, the case where the two types of brushes 20a and 20b are provided has been described as an example, but the present invention is not limited to this and may be one type, or three or more types. Alternatively, a configuration in which a blade member made of an elastic material such as rubber is spirally arranged between the brushes spirally arranged may be added, and can be appropriately changed. In this way, since the brush configuration of the rotary cleaning body 20 can be easily changed, there is also an effect that it is easy to deal with the suction body according to the purpose, such as a wooden floor or a carpet.

また，複数のらせん状の溝に，各ブラシ２０ａ、２０ｂを挿入する構成のため，組み立て工程が容易であり，製造コストが抑えられるという効果もある。 Further, since the brushes 20a and 20b are inserted into the plurality of spiral grooves, the assembly process is easy and the manufacturing cost can be reduced.

また，隣り合う溝が千鳥状に，回転ラジアル方向に，異なる高さで配置されているため，各ブラシ２０ａ、２０ｂの間隔を狭く，高密度に配置できるので，さらにブラシ室Ｑの気密性が向上し，微細な塵埃の集塵性能を向上させることができる。 Further, since the adjacent grooves are arranged in a zigzag manner and at different heights in the radial direction of rotation, the spaces between the brushes 20a and 20b can be narrowed and arranged at a high density, so that the airtightness of the brush chamber Q is further improved. It is possible to improve the dust collection performance of fine dust.

以上述べたように本実施例によれば，リブ状突起物が，回転清掃体の外周に接しているため，ブラシ室の気密が向上し，集塵性能が向上する。かつ，回転ブラシとブラシ室内壁との接触抵抗が小さいため，回転トルクの小さい安価な電動機を用いることができ，低コスト化が図れる。 As described above, according to the present embodiment, since the rib-shaped protrusion is in contact with the outer periphery of the rotary cleaning body, the airtightness of the brush chamber is improved and the dust collecting performance is improved. Moreover, since the contact resistance between the rotating brush and the inner wall of the brush is small, an inexpensive electric motor with small rotating torque can be used, and the cost can be reduced.

また，回転トルクの小さい軽い電動機を用いることができ，結果吸口体も軽くなり，使い勝手がよくなるという効果もある。 In addition, a light electric motor with a small rotating torque can be used, and as a result, the suction body is also lightened, and the usability is improved.

また，リブ状突起物は，その高さを比較的容易に変更できるため，たとえば，設計初期から回転清掃体の直径を変更する必要が生じた場合，ブラシ室Ｑ全体の形状を変更する必要がなく，リブ状突起物の高さを変更するだけで対応可能なので，設計の自由度が増すという効果もある。 Further, since the height of the rib-shaped protrusion can be changed relatively easily, for example, when it is necessary to change the diameter of the rotary cleaning member from the initial design, it is necessary to change the shape of the entire brush chamber Q. Instead, it can be dealt with only by changing the height of the rib-shaped protrusions, which has the effect of increasing the degree of freedom in design.

なお，本実施例では，リブ状突起物が５本の場合を記載したが，５本に限定されるわけではなく，１本で十分気密が確保される場合もあり，５本以上を設置してもよい。
また，本実施例では，リブ状突起物をブラシ室の端から端まで連続的に設けたが，製造上の制約等から，ブラシ室の端から端まで設けることが困難な場合は，リブ状突起物の長さが，ブラシ室の端から端までの距離の90%以上あれば，気密が確保される。 In addition, in this embodiment, the case where the number of rib-shaped projections is 5 is described, but the number of rib-shaped projections is not limited to five, and there is a case in which one air-tightness can be sufficiently secured. May be.
In addition, in this embodiment, the rib-shaped protrusions are continuously provided from one end of the brush chamber to the other. If the length of the protrusion is 90% or more of the distance between the ends of the brush chamber, airtightness is secured.

以下、本発明に係る実施例２について図９を参照して説明する。なお、実施例１と同一の構成物には同一番号を付している。 The second embodiment according to the present invention will be described below with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals.

図９は、実施例２の吸口体の、回転清掃体２０を取り外した状態の吸口体の底面図である。ブラシ室Ｑの内壁には，リブ状突起物（Lib21〜Lib22）が，吸口本体１１の左右方向に連続して，かつ回転清掃体２０の各ブラシ２０ａ、２０ｂのひねり方向と同一方向にねじられた状態で設けられている。 FIG. 9 is a bottom view of the suction body of the second embodiment with the rotary cleaning body 20 removed. On the inner wall of the brush chamber Q, rib-shaped protrusions (Lib21 to Lib22) are continuously twisted in the left-right direction of the suction port body 11 and twisted in the same direction as the twisting direction of each brush 20a, 20b of the rotary cleaning body 20. It is provided in the open state.

以上述べたように本実施例によれば、リブ状突起物のひねり方向が，回転清掃体２０の各ブラシ２０ａ、２０ｂのひねり方向と同一方向にねじられた状態で設けられているので，リブ状突起物の先端と各ブラシ２０ａ、２０ｂの接触面積が増大し，さらにブラシ室の気密が向上し，集塵性能が向上するという効果がある。 As described above, according to the present embodiment, the rib-shaped protrusions are provided in a twisted state in the same direction as the twisting directions of the brushes 20a and 20b of the rotary cleaning body 20, so that the ribs There is an effect that the contact area between the tips of the protrusions and the brushes 20a and 20b is increased, the airtightness of the brush chamber is improved, and the dust collecting performance is improved.

以下、本発明に係る実施例３について図１０を参照して説明する。なお、実施例１と同一の構成物には同一番号を付している。 The third embodiment according to the present invention will be described below with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals.

図１０は、実施例３の吸口体の、回転清掃体２０を取り外した状態の吸口体の底面図である。ブラシ室Ｑの内壁には，リブ状突起物（Lib31〜Lib32）が，吸口本体１１の左右方向に連続して，かつ，回転清掃体２０の回転軸方向において，吸口体中心の左右で逆である。回転清掃体２０の左右両端付近から吸い込まれた塵埃のうち一部は，回転清掃体２０の回転により，ブラシ室Ｑの内部を一定時間以上その場で回転していた。本実施例３では，リブ状突起物（Lib31〜Lib32）が，左右逆にねじられた状態で設けてあるので，ブラシ室Ｑの内部を回転する塵埃は，リブ状突起物（Lib31〜Lib32）に衝突し，矢印に示すように，その向きが回転清掃体２０中心方向に変更される。 回転清掃体２０の中央部は吸引風速が早いため、塵埃はブラシ室Ｑから流路Ｒへ吸引される。 FIG. 10 is a bottom view of the suction body of the third embodiment with the rotary cleaning body 20 removed. On the inner wall of the brush chamber Q, rib-shaped projections (Lib31 to Lib32) are continuous in the left-right direction of the suction port main body 11, and in the rotation axis direction of the rotary cleaning body 20, the ribs are reversed on the left and right sides of the suction port body. is there. A part of the dust sucked from the vicinity of the left and right ends of the rotary cleaning body 20 was rotated in place inside the brush chamber Q for a certain time or longer by the rotation of the rotary cleaning body 20. In the third embodiment, since the rib-shaped protrusions (Lib31 to Lib32) are provided in a state of being twisted in the left-right direction, dust rotating inside the brush chamber Q is rib-shaped protrusions (Lib31 to Lib32). And the direction is changed to the center of the rotary cleaning body 20, as shown by the arrow. Since the suction wind velocity is high in the central portion of the rotary cleaning body 20, dust is sucked from the brush chamber Q into the flow path R.

以上述べたように本実施例によれば、リブ状突起物（Lib31〜Lib32）が，吸口本体の左右方向に連続して，かつ，回転清掃体２０の回転軸方向において，吸口体中心の左右で逆であるので，ブラシ室Ｑに存在する塵埃が，スムースに流路Ｒへ吸引されるという効果がある。 As described above, according to the present embodiment, the rib-shaped protrusions (Lib31 to Lib32) are continuous in the left-right direction of the suction body, and in the rotation axis direction of the rotary cleaning body 20, left and right of the center of the suction body. Since it is the opposite, there is an effect that dust existing in the brush chamber Q is smoothly sucked into the flow path R.

１ 電気掃除機
２ 掃除機本体
２ａ 電動送風機
２ｂ 集塵部
６ 吸口体
２０ 回転清掃体（回転ブラシ）
４０ 電動機
５０ 回路基板（制御基板）
ＲＣ ロータリーコア
２０ａ、２０ｂ 回転清掃体のブラシ
Lib1〜lib5 実施例１によるリブ状突起物
Lib21〜lib22 実施例２によるリブ状突起物
Lib31〜lib32 実施例３によるリブ状突起物
Ｍ 床面
Ｑ ブラシ室 1 Electric Vacuum Cleaner 2 Vacuum Cleaner Main Body 2a Electric Blower 2b Dust Collection Part 6 Suction Body 20 Rotating Cleaning Body (Rotating Brush)
40 electric motor 50 circuit board (control board)
RC rotary core 20a, 20b Rotation cleaning brush
Lib1 to lib5 Rib-shaped protrusions according to Example 1
Lib21 to lib22 Rib-shaped protrusions according to Example 2
Lib31 to lib32 Rib-shaped protrusions according to Example 3 M Floor surface Q Brush chamber

Claims (6)

ロータリーコアの周囲に清掃面を摺擦する摺擦部材が設けられた回転清掃体と、該回転清掃体を駆動する電動機と、前記回転清掃体の周囲を覆うブラシ室とを備えた吸口体において、リブ状突起物を，前記ブラシ室内壁に，前記回転清掃体の外周に接するように，かつ前記回転清掃体回転軸方向において，前記ブラシ室の端から端まで連続的に，少なくとも１本以上設けることを特徴とする電気掃除機の吸口体。 In a suction body including a rotary cleaning body provided with a rubbing member for rubbing a cleaning surface around a rotary core, an electric motor driving the rotary cleaning body, and a brush chamber covering the periphery of the rotary cleaning body. At least one rib-shaped projection is continuously formed on the inner wall of the brush so as to be in contact with the outer periphery of the rotary cleaning body, and continuously from the end of the brush chamber in the rotation axis direction of the rotary cleaning body. A suction body for an electric vacuum cleaner, which is provided. 請求項１に記載の電気掃除機において、前記該ブラシ室の前方にバンパーを設け，前記回転清掃体の回転中心軸と前記バンパーの先端までの水平距離は、前記回転清掃体の半径より大きくかつ１．２倍より小さく、前記バンパーの開口床面高さは、４ｍｍより大きくかつ前記回転清掃体の半径より小さいことを特徴とする電気掃除機の吸口体およびこれを備えた電気掃除機。 The electric vacuum cleaner according to claim 1, wherein a bumper is provided in front of the brush chamber, and a horizontal distance between a rotation center axis of the rotary cleaning body and a tip of the bumper is larger than a radius of the rotary cleaning body. A suction body of an electric vacuum cleaner and a vacuum cleaner including the same, wherein the height of the opening floor surface of the bumper is larger than 1.2 times and is larger than 4 mm and smaller than the radius of the rotary cleaning body. 請求項１に記載の電気掃除機において、前記回転清掃体の半径は、前記ロータリーコアの半径の２倍より小さく、前記回転清掃体は、前記ロータリーコアの長手方向に形成された複数の溝に前記摺擦部材を挿入して構成されることを特徴とする電気掃除機の吸口体およびこれを備えた電気掃除機。 The vacuum cleaner according to claim 1, wherein a radius of the rotary cleaning body is smaller than twice a radius of the rotary core, and the rotary cleaning body has a plurality of grooves formed in a longitudinal direction of the rotary core. A suction body of an electric vacuum cleaner, characterized in that the rubbing member is inserted, and an electric vacuum cleaner including the suction body. 請求項１に記載の電気掃除機において、前記回転清掃体の半径は、前記ロータリーコアの半径の２倍より小さく、前記ブラシ室の最小半径は、前記回転清掃体の半径の１．２倍より小さく、前記回転清掃体は、前記ロータリーコアの長手方向に形成された複数の溝に前記摺擦部材を挿入して構成されることを特徴とする電気掃除機の吸口体およびこれを備えた電気掃除機。 The vacuum cleaner according to claim 1, wherein a radius of the rotary cleaning body is smaller than twice the radius of the rotary core, and a minimum radius of the brush chamber is 1.2 times larger than the radius of the rotary cleaning body. Small, the rotary cleaning body is configured by inserting the rubbing member into a plurality of grooves formed in a longitudinal direction of the rotary core, and a suction body of an electric vacuum cleaner and an electric machine including the suction body. Vacuum cleaner. 請求項１に記載の電気掃除機において、前記リブ状突起物は，前記回転清掃体の回転軸方向において，ひねり形状を持つことを特徴とする電気掃除機の吸口体およびこれを備えた電気掃除機。 The vacuum cleaner according to claim 1, wherein the rib-shaped projection has a twist shape in a rotation axis direction of the rotary cleaning body, and a suction body of the vacuum cleaner and a vacuum cleaner including the suction body. Machine. 請求項５に記載の電気掃除機において、前記リブ状突起物のひねり方向は，前記回転清掃体の回転軸方向において，吸口体中心の左右で逆であることを特徴とする電気掃除機の吸口体およびこれを備えた電気掃除機。 The vacuum cleaner according to claim 5, wherein the twisting directions of the rib-shaped projections are opposite to each other in the rotation axis direction of the rotary cleaning body on the left and right sides of the center of the suction body. Body and vacuum cleaner with it.
JP2018243954A 2018-12-27 2018-12-27 Suction port body of vacuum cleaner and vacuum cleaner including the same Pending JP2020103486A (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
JP2022038440A (en) * 2020-08-26 2022-03-10 日立グローバルライフソリューションズ株式会社 Suction port body and vacuum cleaner including the same
WO2023179214A1 (en) * 2022-03-25 2023-09-28 追觅创新科技(苏州)有限公司 Rolling brush and cleaning apparatus

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JP2005021467A (en) * 2003-07-04 2005-01-27 Hitachi Home & Life Solutions Inc Suction port body for vacuum cleaner and vacuum cleaner equipped with the same
JP2010246848A (en) * 2009-04-20 2010-11-04 Hitachi Appliances Inc Vacuum cleaner
JP2014524324A (en) * 2011-08-23 2014-09-22 コーニンクレッカ フィリップス エヌ ヴェ Cleaning device for cleaning the surface
JP2015116414A (en) * 2013-12-19 2015-06-25 日立アプライアンス株式会社 Vacuum cleaner and suction tool

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JP2005021467A (en) * 2003-07-04 2005-01-27 Hitachi Home & Life Solutions Inc Suction port body for vacuum cleaner and vacuum cleaner equipped with the same
JP2010246848A (en) * 2009-04-20 2010-11-04 Hitachi Appliances Inc Vacuum cleaner
JP2014524324A (en) * 2011-08-23 2014-09-22 コーニンクレッカ フィリップス エヌ ヴェ Cleaning device for cleaning the surface
JP2015116414A (en) * 2013-12-19 2015-06-25 日立アプライアンス株式会社 Vacuum cleaner and suction tool

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022038440A (en) * 2020-08-26 2022-03-10 日立グローバルライフソリューションズ株式会社 Suction port body and vacuum cleaner including the same
JP7513470B2 (en) 2020-08-26 2024-07-09 日立グローバルライフソリューションズ株式会社 Vacuum cleaner with suction nozzle
WO2023179214A1 (en) * 2022-03-25 2023-09-28 追觅创新科技(苏州)有限公司 Rolling brush and cleaning apparatus

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