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JP2005245916A - Vacuum cleaner - Google Patents

Vacuum cleaner
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JP2005245916A
JP2005245916AJP2004063786AJP2004063786AJP2005245916AJP 2005245916 AJP2005245916 AJP 2005245916AJP 2004063786 AJP2004063786 AJP 2004063786AJP 2004063786 AJP2004063786 AJP 2004063786AJP 2005245916 AJP2005245916 AJP 2005245916A
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brush
wall
dust
base
width direction
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JP4309785B2 (en
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Shigeru Oyokota
茂 大横田
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Figla Co Ltd
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Figla Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of positively cleaning a floor face near a wall while not blowing away dust on the floor face off the wall. <P>SOLUTION: A suction port base 2 sized to project both ends in a width direction X from both width direction ends of a cleaner body 1 is connected in a floor face travelable manner to the cleaner body 1 travelable on the floor face 3. A rotary brush 13 having a horizontal axis is stored in the suction port base 2, and dust on the floor face 3 scraped up forward by the brush 13 is sucked by a suction port 11 and discharged. Both ends in the axial direction of the rotary brush 13 are provided with wall side brushes 24 rotated simultaneously with the rotary brush 13, and arrayed floor face cleaning bristle parts 24b2 of the wall side brushes 24 are provided on an inclined line C2 displaced into a delay position from a rotating direction advance position of a brush shaft 24A, to collect dust on the floor face 3 toward the rotary brush 13. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

Translated fromJapanese

本発明は電気掃除機に関し、特に、壁際床面を確実に清掃することができる電気掃除機に関するものである。  The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner capable of reliably cleaning a floor surface near a wall.

従来より、吸口ベースに収容された水平軸線まわりに回転する回転ブラシによって、床面の塵を前方に掻き上げるとともに、掻き上げられた塵を吸引空気流に混合して集塵部に吸い込み、ここで塵を捕集し、吸引空気流のみを機外に排気するように構成した電気掃除機がある(たとえば、特許文献1)。  Conventionally, the rotating brush that rotates around the horizontal axis accommodated in the suction base scrapes the dust on the floor forward, mixes the dust that has been lifted into the suction air flow, and sucks it into the dust collector. There is a vacuum cleaner configured to collect dust and exhaust only the suction air flow to the outside (for example, Patent Document 1).

特開2000−210234号公報(図1)Japanese Patent Laid-Open No. 2000-210234 (FIG. 1)

ところが、特許文献1の電気掃除機では、幅方向寸法の大きい吸口ベースに回転ブラシが収容されているので、壁際床面の清掃に際しては、吸口ベースの幅方向一端が壁面に当接して、壁際床面に対する回転ブラシの接触が妨げられる。このため、回転ブラシによって壁際床面を清掃することができない。  However, in the vacuum cleaner of Patent Document 1, since the rotary brush is accommodated in the suction base having a large width direction dimension, when cleaning the floor surface near the wall, one end in the width direction of the suction base comes into contact with the wall surface. The contact of the rotating brush with the floor surface is hindered. For this reason, the floor near the wall cannot be cleaned by the rotating brush.

そこで、前記吸口ベースの前方近傍にはみ出した位置に鉛直軸線まわりに回転する回転ブラシを設け、この回転ブラシによって壁際床面を清掃することも考えられる。しかし、この方法では、壁際床面の塵の清掃には有効であるものの、壁際から離れた床面の塵は、前記鉛直軸線まわりに回転する回転ブラシによって、吸口ベースから離れた位置に掃き飛ばされてしまう。  Therefore, it is also conceivable to provide a rotating brush that rotates around the vertical axis at a position that protrudes in the vicinity of the front of the inlet base, and to clean the wall floor by this rotating brush. However, although this method is effective for cleaning the dust on the floor near the wall, the dust on the floor far from the wall is swept away from the inlet base by the rotating brush rotating around the vertical axis. Will be.

したがって、本発明の目的は、壁際から離れた床面の塵を掃き飛ばさないものでありながら、壁際床面を確実に清掃することができる電気掃除機を提供することである。  Accordingly, an object of the present invention is to provide an electric vacuum cleaner that can reliably clean the floor surface near the wall while not sweeping away dust on the floor surface far from the wall.

前記目的を達成するために、本発明に係る電気掃除機は、床面を走行可能な掃除機本体と、吸入した空気の空気流に乗せて塵を吸い上げて集塵する吸口ベースとを備え、前記吸口ベースは、前記掃除機本体と共に床面を走行し、かつ、走行方向に直交する幅方向の両端部が前記掃除機本体の幅方向の両端から突出する大きさを有し、この吸口ベースは、概ね水平な軸線のまわりに回転しながら床面に接触して当該床面の塵を前方に掻き上げる回転ブラシと、この回転ブラシを前記軸線のまわりに回転させる駆動機構と、前記回転ブラシで床面から前方に掻き上げられた塵を空気流に乗せて塵の吸引口に導く流体通路とを備えている電気掃除機において、前記吸口ベースには、該吸口ベースの少なくとも幅方向の一端から幅方向の外側に突出すると共に、前記駆動機構によって前記軸線のまわりに回転する壁際ブラシが設けられている。  In order to achieve the above object, a vacuum cleaner according to the present invention includes a vacuum cleaner main body capable of traveling on a floor surface, and a mouthpiece base that sucks up dust and collects it on an air flow of inhaled air, The mouthpiece base travels on the floor surface together with the cleaner body, and both ends in the width direction perpendicular to the running direction protrude from both ends in the width direction of the cleaner body. A rotating brush that rotates around a substantially horizontal axis and contacts the floor surface to scrape dust on the floor surface forward; a driving mechanism that rotates the rotating brush around the axis; and the rotating brush And a fluid passage that guides the dust scraped forward from the floor surface to the dust suction port by placing it on an air flow, and the suction base includes at least one end in the width direction of the suction base. Protrudes outward in the width direction from Together, the wall brush that rotates around the axis is provided by the drive mechanism.

本発明の電気掃除機によれば、掃除機本体と共に吸口ベースが床面を走行する際に、吸口ベースに設けた駆動機構によって回転ブラシが概ね水平な軸線のまわりに(ブラシ軸のまわりに)回転して床面の塵を前方に掻き上げる。床面から掻き上げられた塵は、流体通路で吸引口に吸引されている空気流に混合される。前記塵と空気流との混合流体は流体通路により案内されて塵の吸引口まで導かれて(流下して)、当該塵の吸引口に吸い込まれて吸口ベースの外部に吸い出される。
一方、壁際ブラシは、吸口ベースの少なくとも幅方向の一端から外側に突出した状態で前記軸線のまわりに回転するので、吸口ベースが壁面に当接した状態又は当接するのを避けた状態で、壁際床面の塵および壁面下端部の塵を清掃することができる。
According to the electric vacuum cleaner of the present invention, when the suction base moves along with the vacuum cleaner body on the floor surface, the rotary brush is moved around the horizontal axis (around the brush axis) by the drive mechanism provided on the suction base. Rotates and sweeps the floor dust forward. The dust scooped up from the floor is mixed with the air flow sucked into the suction port in the fluid passage. The mixed fluid of the dust and the air flow is guided by the fluid passage to the dust suction port (flows down), sucked into the dust suction port, and sucked out of the suction base.
On the other hand, the brush at the wall rotates around the axis while projecting outward from at least one end of the suction base in the width direction, so that the suction base is in contact with the wall surface or in a state of avoiding contact. The dust on the floor and the dust on the lower end of the wall can be cleaned.

本発明の態様においては、前記壁際ブラシは前記軸線に沿って設けられた軸部を有し、前記軸部の外周には、該軸部の径方向の外方に向って延設された1ないし複数の刷毛部と、前記軸部の周方向において前記刷毛部に隣接する無毛部とが設けられ、前記刷毛部は、前記床面に接触する状態において、前記軸部の軸方向の基端部から外端部に近づくに従って、前記軸部の回転方向の遅れ位置から進み位置に配置されるように斜めに設けられている。
この態様によれば、壁際ブラシの刷毛部が吸口ベースの前方内側に向って塵を寄せ集めるように配置されているので、壁際以外の床面を清掃する場合でも、吸口ベースから離れた位置に塵を撒き散らしてしまうことがない。
In an aspect of the present invention, the wall-side brush has a shaft portion provided along the axis, and the outer periphery of the shaft portion extends 1 outward in the radial direction of the shaft portion. Or a plurality of brush portions and a hairless portion adjacent to the brush portion in the circumferential direction of the shaft portion, the brush portion being in a state of contacting the floor surface in the axial direction of the shaft portion. As it approaches the outer end portion from the end portion, it is provided obliquely so as to be arranged from the delayed position in the rotational direction of the shaft portion to the advanced position.
According to this aspect, since the brush portion of the brush at the wall is arranged so as to collect dust toward the front inner side of the suction base, even when cleaning the floor surface other than the wall, it is at a position away from the suction base. No dust will be scattered.

この場合、たとえば、前記壁際ブラシの刷毛部は、壁際ブラシ軸の外周面から径外方向にのばして設けた列状の床面清掃刷毛部と、前記壁際ブラシ軸の軸方向外端面から軸方向外側にのばして設けた列状の壁面清掃刷毛部とを備え、前記列状の床面清掃刷毛部は、前記列状の壁面清掃刷毛部側から反対側にかけて前記壁際ブラシ軸の回転方向の進み位置から遅れ位置に変位する傾斜線上に設けられている。
これによると、壁際ブラシの回転により、壁際床面の塵は、列状の床面清掃刷毛部により、傾斜線の傾斜角に相当する内向きの傾斜角で壁際床面から内側に寄せ集められる。また、壁面下端部の塵は、列状の壁面清掃刷毛部によって掃き取られて壁際床面に落下し、前記壁際床面の塵に混入して列状の床面清掃刷毛部により壁際から離れた床面側に寄せ集められる。さらに、壁際ブラシが壁際から離れていても、壁際から離れた床面の塵を掃き飛ばすことなく、回転ブラシ側に向けて寄せ集めることができる。
In this case, for example, the brush portion of the wall-side brush includes an array of floor surface cleaning brush portions that extend radially outward from the outer peripheral surface of the wall-side brush shaft, and an axial direction from the axially outer end surface of the wall-side brush shaft. A row-like wall surface cleaning brush portion provided extending outward, and the row-like floor surface cleaning brush portion advances in the rotational direction of the wall-side brush shaft from the row-like wall surface cleaning brush portion toward the opposite side. It is provided on an inclined line that is displaced from the position to the delay position.
According to this, due to the rotation of the brush at the wall, the dust on the floor near the wall is gathered inward from the floor near the wall by an inward inclination angle corresponding to the inclination angle of the inclined line by the row-like floor cleaning brush portion. . Also, the dust at the lower end of the wall surface is swept away by the line-shaped wall surface cleaning brush part and dropped onto the floor surface near the wall, mixed with the dust on the wall surface and separated from the wall side by the line-like floor surface cleaning brush part. Gathered on the floor side. Furthermore, even when the wall brush is away from the wall, it can be gathered toward the rotating brush without sweeping away dust on the floor surface away from the wall.

また、本発明においては、前記吸口ベースの幅方向の略中央部に、前記塵の吸引口と、空気を導入する導入部とを設けると共に、前記導入部から導入された空気を前記吸口ベースの両端部に導いた後、前記流体通路に導くダクトを設け、前記ダクトを流れた空気が前記両端部においてUターンするように向きを変えた後、前記流体通路の両端部から前記吸口ベースの幅方向の略中央部に設けられた前記塵の吸引口に向って流れるようにしてもよい。
このようにすれば、吸口ベースの幅方向の長さが大きくても、前記壁際ブラシで掻き上げられた塵を効率よく吸引することができる。
In the present invention, the dust suction port and the introduction portion for introducing air are provided at a substantially central portion in the width direction of the suction mouth base, and the air introduced from the introduction portion is supplied to the suction mouth base. After guiding to both ends, a duct for guiding to the fluid passage is provided, and the direction of the air flowing through the duct is changed so that it makes a U-turn at the both ends, and then the width of the suction base from both ends of the fluid passage. You may make it flow toward the said dust suction opening provided in the approximate center part of the direction.
In this way, even if the length of the suction base in the width direction is large, the dust scraped up by the wall brush can be efficiently sucked.

この場合、たとえば、吸口ベースには、前記流体通路を流下している前記塵と空気流との混合流体に前記吸引口への押し込み力を負荷する送風手段と、この送風手段の吐出風を前記流体通路に導くダクトが設けられている。
これによると、送風手段の吐出風をダクトによって流体通路に導いて、当該流体通路を流下している混合流体に吸引口への押し込み力として風圧を作用させて、混合流体を確実に吸引口に吸い込ませることができる。
In this case, for example, on the suction port base, a blowing unit that applies a pushing force to the suction port on the mixed fluid of the dust and the air flow flowing down the fluid passage, and the discharge air of the blowing unit A duct leading to the fluid passage is provided.
According to this, the discharge air of the air blowing means is guided to the fluid passage by the duct, and the mixed fluid flowing down the fluid passage is made to act as a pushing force to the suction port, so that the mixed fluid is reliably supplied to the suction port. Can be inhaled.

さらに、本発明においては、前記吸口ベースにおける前記壁際ブラシの前側に、当該壁際ブラシで床面から掻き上げられた塵の浮き上がりを許容すると共に、浮き上がった塵が前記流体通路に導かれるのを許容する許容凹所を前記吸口ベースの下面に形成してもよい。
このようにすれば、前記壁際ブラシで掻き上げられた塵が前記許容凹所を通って流体通路に導かれるので、壁際床面の清掃を確実に行うことができる。
Further, in the present invention, the dust lifted up from the floor surface by the wall-side brush is allowed to rise to the front side of the wall-side brush in the suction base, and the lifted dust is allowed to be guided to the fluid passage. An allowable recess may be formed on the lower surface of the suction base.
In this way, the dust scraped up by the brush by the wall is guided to the fluid passage through the allowable recess, so that the floor surface at the wall can be reliably cleaned.

一方、壁際ブラシの前側には、当該壁際ブラシで床面から掻き上げられた塵の浮き上がりを許容するとともに、浮き上がった塵を前記流体通路に導く案内流路を設けてもよい。これによると、壁際ブラシで掻き上げられた壁際床面の塵を案内流路から流体通路に導いて、当該流体通路を流下している混合流体に混合させて、吸引口に向かって流下させることができる。このため、壁際床面の塵が壁際ブラシで床面から掻き上げられた直後に他部材に衝突して、再度、壁際床面に落下する不具合を回避することができる。  On the other hand, a guide channel may be provided on the front side of the wall brush so as to allow the dust lifted from the floor surface by the wall brush to be lifted and guide the lifted dust to the fluid passage. According to this, the dust on the floor surface of the wall scraped up by the brush at the wall is guided from the guide channel to the fluid passage, mixed with the mixed fluid flowing down the fluid passage, and allowed to flow down toward the suction port. Can do. For this reason, it is possible to avoid the problem that the dust on the floor near the wall collides with another member immediately after being scraped from the floor with the brush at the wall and falls again on the floor near the wall.

本発明によれば、吸口ベースの少なくとも幅方向の一端から外側に突出した状態で概ね水平な軸線のまわりに回転する壁際ブラシによって、吸口ベースが壁面に当接するのを避けた状態で、壁際床面の塵を確実に清掃することができる。  According to the present invention, the wall-side floor is provided in a state in which the suction base is prevented from coming into contact with the wall surface by the wall-side brush that rotates around a substantially horizontal axis while protruding outward from at least one end in the width direction of the suction base. Dust on the surface can be reliably cleaned.

以下、本発明に係る電気掃除機の実施形態を図面にしたがって説明する。
図1は電気掃除機の実施形態を示す全体斜視図である。
図1に示す電気掃除機は、掃除機本体1と、吸口ベース2とを備えている。
掃除機本体1は、床面3の走行を可能に構成されており、この掃除機本体1の後部には、当該掃除機本体1に追従して床面3の走行を可能に吸口ベース2が連結されている。また、掃除機本体1には、塵を捕集する集塵部4や、この集塵部4の内部に対して図示されていないフィルタを介して連通する空気吸引手段(図示省略)などが搭載されている。
Hereinafter, embodiments of a vacuum cleaner according to the present invention will be described with reference to the drawings.
FIG. 1 is an overall perspective view showing an embodiment of a vacuum cleaner.
The vacuum cleaner shown in FIG. 1 includes a cleaner body 1 and asuction base 2.
The vacuum cleaner main body 1 is configured to be able to travel on thefloor surface 3, and asuction mouth base 2 is provided at the rear of the vacuum cleaner main body 1 so as to follow the cleaner main body 1 and allow thefloor surface 3 to travel. It is connected. The vacuum cleaner body 1 is also equipped with a dust collection unit 4 that collects dust and air suction means (not shown) that communicates with the inside of the dust collection unit 4 through a filter (not shown). Has been.

吸口ベース2は、掃除機本体1の走行方向(矢印Y)に直交する幅方向(矢印X)の両端部2L,2Rが掃除機本体1の幅方向両端から少しはみ出す大きさのもので、図2に示すように、幅方向に長い横長のベース部20と、このベース部20を上側から着脱可能に覆うカバ−21とを備えている。図1に示すように、カバ−21によってベース部20が覆われた組立状態で、ベース部20とカバ−21の周囲はバンパ5により取り囲まれている。  Thesuction mouth base 2 has such a size that bothend portions 2L, 2R in the width direction (arrow X) perpendicular to the traveling direction (arrow Y) of the cleaner body 1 slightly protrude from both ends in the width direction of the cleaner body 1. As shown in FIG. 2, a horizontallylong base portion 20 that is long in the width direction and acover 21 that covers thebase portion 20 detachably from above are provided. As shown in FIG. 1, thebase portion 20 and thecover 21 are surrounded by abumper 5 in an assembled state in which thebase portion 20 is covered with thecover 21.

図2に示すように、吸口ベース2のベース部20は、その上面の全てが段差付き蓋板22によって閉塞されて下側を開口してある。段差付き蓋板22は、横断面L字状の前側閉塞部22aと横断面逆向きL字状の後側閉塞部22bとを有している。両者22a,22bは、ベース部20における走行方向Yの略中央部において幅方向Xの略全長にのびて直線状に設けられた段差部22cを境界に前後に振り分けられており、前側閉塞部22aのレベル(高さ)を後側閉塞部22bのレベル(高さ)よりも高く設定してある。  As shown in FIG. 2, thebase portion 20 of thesuction mouth base 2 is entirely closed by astepped lid plate 22 and opened at the lower side. Thestepped lid plate 22 has afront blocking portion 22a having an L-shaped cross section and arear blocking portion 22b having an L-shape that is opposite in cross section. The twoportions 22a and 22b are distributed back and forth with astep portion 22c provided in a straight line extending substantially along the entire length in the width direction X at a substantially central portion in the traveling direction Y of thebase portion 20, and thefront blocking portion 22a. Is set higher than the level (height) of therear blocking portion 22b.

前側閉塞部22aの下側には、間隔を隔てて仕切板22dが対向して設けられ、前側閉塞部22aと仕切板22dおよび段差部22cとで取り囲まれる角形閉断面構造のダクト6が幅方向略全長にのびて設けられている。また、後側閉塞部22bの下側には、ダクト6に平行にブラシ収容室7が設けられている。このブラシ収容室7の前側で、かつ、ダクト6の下側には、図3に示す混合流体通路8がブラシ収容室7に平行して幅方向略全長にわたって設けられている(ただし、図3には、幅方向の一部のみが示されている)。混合流体通路8の幅方向両端部8L,8R(ただし、図3には、混合流体通路8の幅方向一端部のみが示されている)は、下向きの隆起部9に形成したU字状の透孔9aを介してダクト6の幅方向両端部6L,6Rに連通している。  On the lower side of thefront blocking portion 22a, apartition plate 22d is provided facing the space with a gap therebetween, and theduct 6 having a rectangular closed cross-section structure surrounded by thefront blocking portion 22a, thepartition plate 22d, and thestepped portion 22c is in the width direction. It is provided so as to extend substantially the entire length. Further, a brush accommodating chamber 7 is provided below therear blocking portion 22 b in parallel with theduct 6. Amixed fluid passage 8 shown in FIG. 3 is provided on the front side of the brush housing chamber 7 and on the lower side of theduct 6 in parallel with the brush housing chamber 7 over substantially the entire length in the width direction (however, FIG. 3). Only shows part of the width). Bothend portions 8L and 8R in the width direction of the mixed fluid passage 8 (however, only one end portion in the width direction of themixed fluid passage 8 is shown in FIG. 3) are U-shaped formed on the downwardly raisedridges 9. It communicates with both ends 6L, 6R in the width direction of theduct 6 through the throughholes 9a.

図2に示すように、前側閉塞部22aの幅方向中央部には、ダクト6に通じる角形の開口部22eが設けられ、この開口部22eは、たとえばシロッコフアンなどの送風機からなる送風手段(導入部)10の吐出口10aによって塞がれ、送風手段10の吸込口10bは、ベース部20の前側に向けて開口している。また、後側閉塞部22bの幅方向中央部を貫通して、ブラシ収容室7に通じる貫通孔(図示省略)が設けられ、この貫通孔を塞いで塵の吸引口11が取付けられている。そして、前記混合流体通路8の幅方向中央部は吸引口11の入口に連通させ、吸引口11の出口は、図1に示すように、吸引ホース12を介して集塵部4の入口に連通させてある。  As shown in FIG. 2, arectangular opening 22 e that communicates with theduct 6 is provided at the center in the width direction of the front blockingportion 22 a, and theopening 22 e is a blowing means (for example, a sirocco fan). Part) 10 is closed by thedischarge port 10 a, and thesuction port 10 b of theblower 10 is open toward the front side of thebase unit 20. Further, a through hole (not shown) that penetrates the central portion in the width direction of therear blocking portion 22b and communicates with the brush housing chamber 7 is provided, and thedust suction port 11 is attached by closing the through hole. The central portion in the width direction of themixed fluid passage 8 communicates with the inlet of thesuction port 11, and the outlet of thesuction port 11 communicates with the inlet of the dust collecting unit 4 via thesuction hose 12 as shown in FIG. I'm allowed.

図2,図3に示すように、ブラシ収容室7には、概ね水平な軸線C1のまわりに回転自在に支持された回転ブラシ13が収容される。この回転ブラシ13は、図1に示す床面3に接触して、当該床面3の塵を前方に掻き上げるためのもので、回転ブラシ軸13a周面から径外方向にのばした二条の床面清掃刷毛部13bを有している。これら床面清掃刷毛部13bは、大きいリードを有して螺旋状に設けられている。すなわち、床面清掃刷毛部13bは、塵を前方に掻き上げられるように回転ブラシ軸13aの軸方向の全長にわたって螺旋状に設けられている。  As shown in FIGS. 2 and 3, the brush accommodating chamber 7 accommodates a rotatingbrush 13 that is rotatably supported around a substantially horizontal axis C <b> 1. This rotatingbrush 13 is for contacting thefloor surface 3 shown in FIG. 1 and scraping dust on thefloor surface 3 forward. The rotatingbrush 13 extends in a radially outward direction from the peripheral surface of therotating brush shaft 13a. It has a floor cleaningbrush portion 13b. These floor surface cleaningbrush portions 13b have a large lead and are provided in a spiral shape. That is, the floor cleaningbrush portion 13b is provided in a spiral shape over the entire length in the axial direction of therotating brush shaft 13a so that dust can be scraped forward.

回転ブラシ13は、図2、図4および図5に示すように、回転ブラシ軸13aの両端部に取付けた一対のカップリング14A,14Bの外端部が、左右一対のブラケット15A,15Bに取付けられている軸受メタル16内部のベアリング17によって回転自在に支持されている。左右一対のブラケット15A,15Bは、後側閉塞部22bの幅方向両端部を上下に貫通してブラシ収容室7に臨ませた状態で当該後側閉塞部22bに取付けられている。  As shown in FIGS. 2, 4 and 5, the rotatingbrush 13 has outer ends of a pair ofcouplings 14A and 14B attached to both ends of therotating brush shaft 13a attached to a pair of left andright brackets 15A and 15B. The bearingmetal 16 is rotatably supported by abearing 17. The pair of left and right brackets 15 </ b> A and 15 </ b> B are attached to therear blocking portion 22 b in a state where the both ends in the width direction of therear blocking portion 22 b vertically penetrate the brush housing chamber 7.

また、一方のブラケット15Aには、上方への延出片15aが設けられ、この延出片15aに回転ブラシ駆動モータ18が水平軸線を有して取付けられており、回転ブラシ駆動モータ18と、当該回転ブラシ駆動モータ18の出力軸18aに取付けられている駆動プーリ19Aと、タイミングベルト19Bおよび打ち込み連結ピン23を介して一方のカップリング14Aに同時回転可能に連結されている従動プーリ19Cとで、回転ブラシ13を前記軸線C1のまわり(矢印R)に回転させる駆動機構19が構成されている。  Onebracket 15A is provided with an upwardly extendingpiece 15a, and a rotarybrush drive motor 18 is attached to theextended piece 15a with a horizontal axis. Adrive pulley 19A attached to theoutput shaft 18a of the rotarybrush drive motor 18 and a drivenpulley 19C connected to onecoupling 14A via atiming belt 19B and adriving connection pin 23 so as to be simultaneously rotatable. Thedrive mechanism 19 is configured to rotate the rotatingbrush 13 around the axis C1 (arrow R).

図2、図3、図4および図5に示すように、回転ブラシ13の軸方向両端部には、壁際ブラシ24L,24Rが同じ水平軸線C1まわり(矢印R)の回転を可能に取付けられて、吸口ベース2を取り囲んでいるバンパ5の幅方向両端部から外側に突出している。壁際ブラシ24は、図6および図7に示すように、壁際ブラシ軸(軸部)24Aと、刷毛部24Bとを備え、壁際ブラシ軸24Aの水平な中心線上に連結ピン圧入孔24aが設けられている。この連結ピン圧入孔24aに、図5に示す打ち込み連結ピン23における外端部を圧入することで、駆動機構19によって壁際ブラシ24を回転ブラシ13と同時に同じ水平軸線C1まわり(矢印R)に回転させるように構成してある。  As shown in FIGS. 2, 3, 4, and 5, wall-side brushes 24 </ b> L and 24 </ b> R are attached to both ends of the rotatingbrush 13 in the axial direction so as to be able to rotate around the same horizontal axis C <b> 1 (arrow R). Thebumper 5 that surrounds thesuction base 2 protrudes outward from both ends in the width direction. As shown in FIGS. 6 and 7, thewall brush 24 includes a wall brush shaft (shaft portion) 24A and abrush portion 24B, and a connecting pin press-fittinghole 24a is provided on a horizontal center line of thewall brush shaft 24A. ing. By pressing the outer end portion of thedriving connection pin 23 shown in FIG. 5 into the connection pin press-fittinghole 24a, thedrive mechanism 19 rotates thewall brush 24 around the same horizontal axis C1 (arrow R) simultaneously with therotary brush 13. It is comprised so that it may be made.

図6および図7に示すように、壁際ブラシ24の刷毛部24Bは、壁際ブラシ軸24Aの中心Oを通る直線C1上に位置して、当該壁際ブラシ軸24Aの軸方向外端面24bから軸方向外側にのばして設けた列状の壁面清掃刷毛部24b1と、この列状の壁面清掃刷毛部24b1の上下両端に連続して壁際ブラシ軸24Aの外周面24cから径外方向にのばして設けた上下一対の列状の床面清掃刷毛部24b2とを備えている。これら列状の床面清掃刷毛部24b2は、列状の壁面清掃刷毛部24b1側から反対側にかけて、つまり、壁際ブラシ軸24の軸方向外端面24bから反対側にかけて、壁際ブラシ軸24Aの回転方向Rの進み位置から遅れ位置に変位する傾斜線C2上に設けてある。  As shown in FIGS. 6 and 7, thebrush portion 24B of the wall-side brush 24 is positioned on a straight line C1 passing through the center O of the wall-side brush shaft 24A and is axially extended from the axialouter end surface 24b of the wall-side brush shaft 24A. An array of wall surface cleaning brush portions 24b1 extending outward, and an upper and lower surface extending radially outward from the outerperipheral surface 24c of the wall-side brush shaft 24A continuously to the upper and lower ends of the array of wall surface cleaning brush portions 24b1. A pair of row-like floor surface cleaning brush portions 24b2 are provided. These row-like floor surface cleaning brush portions 24b2 rotate from the row-like wall surface cleaning brush portion 24b1 side to the opposite side, that is, from the axialouter end surface 24b of the wall-side brush shaft 24 to the opposite side, in the rotational direction of the wall-side brush shaft 24A. It is provided on an inclined line C2 that is displaced from the advance position of R to the delay position.

すなわち、図6および図7に示すように、走行方向Yに対して左側の壁際ブラシ24Lは、前記刷毛部24b2が、床面3に接触する状態において、前記壁際ブラシ軸24Aの基端部41から外端部42に近づくに従って、前記回転方向Rの遅れ位置から進み位置に配置されるように斜めに設けられていることで、左ネジの回転方向に沿った螺旋状に配置されている。  That is, as shown in FIGS. 6 and 7, the wall-side brush 24 </ b> L on the left side with respect to the traveling direction Y has abase end portion 41 of the wall-side brush shaft 24 </ b> A in a state where thebrush portion 24b 2 is in contact with thefloor surface 3. As theouter end portion 42 is closer to theouter end portion 42, it is disposed obliquely so as to be disposed at the advanced position from the delayed position in the rotational direction R, so that it is disposed in a spiral shape along the rotational direction of the left screw.

なお、図4および図5に示すように、前記左側の壁際ブラシ24Lに対して、右側の壁際ブラシ24Rは、右ネジの回転方向に沿った螺旋状に前記刷毛部24b2が配置されている。右側の壁際ブラシ24Rのその他の構造は、左側の壁際ブラシ24Lと同様であるため、その詳しい説明を省略する。  As shown in FIGS. 4 and 5, the brush portion 24b2 is arranged in a spiral shape along the rotational direction of the right screw in theright wall brush 24R with respect to theleft wall brush 24L. The other structure of theright wall brush 24R is the same as that of theleft wall brush 24L, and a detailed description thereof will be omitted.

また、図3に示すように、混合流体通路8の幅方向両端部8L,8R(ただし、図3には、混合流体通路8の幅方向一端部のみが示されている)に形成した下向きの隆起部9の幅方向外側から前側にかけて、当該隆起部9の下向きの隆起量よりも十分に小さい下向きの隆起量を有するL字状の下向き平坦面25が形成されている。吸口ベース2にバンパ5を取付けた際に、バンパ5の内面と、L字状の平坦面25の下面および下向きの隆起部9の外面とで下向きに開口した横断面コ字状の案内流路(許容凹所)26が構成される。なお、図中27は走行輪を示す。  Further, as shown in FIG. 3, the both ends 8L and 8R in the width direction of the mixed fluid passage 8 (however, only one end portion in the width direction of themixed fluid passage 8 is shown in FIG. 3). An L-shaped downwardflat surface 25 having a downward bulge amount sufficiently smaller than the downward bulge amount of thebulge portion 9 is formed from the outer side in the width direction of thebulge portion 9 to the front side. When thebumper 5 is attached to thesuction base 2, a guide channel having a U-shaped cross section that opens downward from the inner surface of thebumper 5, the lower surface of the L-shapedflat surface 25, and the outer surface of the downwardly raisedridge 9. An (allowable recess) 26 is formed. In the figure,reference numeral 27 denotes a running wheel.

前記構成の作動について説明する。
図1に示す掃除機本体1と吸口ベース2が床面3を矢印Y方向に走行する。この際、掃除機本体1に搭載されている空気吸引手段(図示省略)と、図2に示す吸口ベース2に設けた送風手段10および駆動機構19が起動する。前記空気吸引手段の起動によって、図2および図3に示す吸口ベース2のブラシ収容室7の前側および当該ブラシ収容室7内の空気は、図1に示す吸口ベース2の吸引口11→吸引ホース12→集塵部4の経路で、図示されていない空気吸引手段に吸引される。
The operation of the above configuration will be described.
The cleaner body 1 and thesuction base 2 shown in FIG. 1 travel on thefloor surface 3 in the arrow Y direction. At this time, the air suction means (not shown) mounted on the cleaner body 1 and the air blowing means 10 and thedrive mechanism 19 provided on thesuction base 2 shown in FIG. 2 are activated. By the activation of the air suction means, the front side of the brush housing chamber 7 of thesuction base 2 shown in FIGS. 2 and 3 and the air in the brush storage chamber 7 are sucked into thesuction port 11 of thesuction base 2 shown in FIG. The air is sucked by an air suction means (not shown) through theroute 12 → the dust collecting section 4.

前記駆動機構19の起動によって、図2および図3に示す回転ブラシ13がブラシ軸13aまわりの矢印R方向に回転して、床面3の塵を前方に掻き上げる。床面3から掻き上げられた塵は、混合流体通路8に沿って吸引口11に吸引されている空気流に混合して吸引口11に吸い込まれ、図1に示す吸引ホース12を経て集塵部4に到達する。ここでフィルタ(図示省略)により塵が捕集され、吸引空気流のみが図示されていない空気吸引手段に吸引されて機外に排気される。  When thedrive mechanism 19 is activated, the rotatingbrush 13 shown in FIGS. 2 and 3 rotates in the direction of arrow R around thebrush shaft 13a, and the dust on thefloor 3 is scraped forward. The dust scraped up from thefloor 3 is mixed with the air flow sucked into thesuction port 11 along themixed fluid passage 8 and sucked into thesuction port 11, and collected through thesuction hose 12 shown in FIG. Part 4 is reached. Here, dust is collected by a filter (not shown), and only the suction air flow is sucked by an air suction means (not shown) and exhausted outside the apparatus.

回転ブラシ13と同時に左右一対の壁際ブラシ24がその壁際ブラシ軸24aまわりの矢印R方向に回転する。これら壁際ブラシ24は、吸口ベース2の幅方向両端2L,2Rから水平軸線C1を有してバンパ5の外側に突出した状態で回転するので、バンパ5が壁面(図示省略)に当接した状態又は当接するのを避けた状態で、図2の壁際床面3aの塵および壁面下端部の塵を清掃することができる。  Simultaneously with the rotatingbrush 13, a pair of left and right wall brushes 24 rotate in the direction of arrow R around thewall brush axis 24 a. These wall-side brushes 24 have a horizontal axis C1 from both ends 2L and 2R in the width direction of thesuction base 2 and rotate outside thebumper 5 so that thebumper 5 is in contact with a wall surface (not shown). Alternatively, it is possible to clean the dust on thewall floor 3a and the dust on the lower end of the wall surface in a state avoiding contact.

図6および図7に示すように、壁際ブラシ24L,24Rの刷毛部24Bにおける上下一対の列状の床面清掃刷毛部24b2は、壁際ブラシ軸24L,24Rの軸方向外端面24bから反対側にかけて、壁際ブラシ軸24Aの回転方向Rの進み位置から遅れ位置に変位する傾斜線C2上に設けられているので、図2に示す壁際床面3aの塵は、図6および図7に示す列状の床面清掃刷毛部24b2により、傾斜線C2の傾斜角θに相当する内向きの傾斜角θ(図4参照)で、図2に示す壁際床面3aから床面3側に寄せ集められる(図4の矢印F参照)。また、図示されていない壁面下端部の塵は、列状の壁面清掃刷毛部24b1によって掃き取られて壁際床面3aに落下し、壁際床面3aの塵に混入して列状の床面清掃刷毛部24b2により壁際床面3aから床面3側に寄せ集められる。このように、壁際から離れた床面3側に寄せ集められた塵は、回転ブラシ13によって前方に掻き上げられたのち、混合流体通路8で吸引口11に吸引されている空気流に混合して吸引口11に吸い込まれて集塵部4で捕集される。さらに、壁際ブラシ24が壁際から離れていても、壁際から離れた床面3の塵を掃き飛ばすことなく、回転ブラシ13側に向けて寄せ集めることができる。  As shown in FIGS. 6 and 7, the pair of upper and lower rows of floor cleaning brush portions 24b2 in thebrush portions 24B of the wall brushes 24L and 24R extend from the axial outer end surfaces 24b of the wall brush brushes 24L and 24R to the opposite side. 2 is provided on the inclined line C2 that is displaced from the advance position in the rotational direction R of the wall-side brush shaft 24A to the delay position, the dust on the wall-side floor surface 3a shown in FIG. The floor surface cleaning brush portion 24b2 gathers thewall surface 3a shown in FIG. 2 toward thefloor surface 3 at an inward inclination angle θ (see FIG. 4) corresponding to the inclination angle θ of the inclination line C2 (see FIG. 4). (See arrow F in FIG. 4). Further, dust at the lower end of the wall surface (not shown) is swept off by the wall-shaped wall cleaning brush portion 24b1 and falls to the wall-side floor surface 3a. The brush portion 24b2 gathers the wall surface from thefloor surface 3a toward thefloor surface 3 side. In this way, the dust collected on thefloor 3 side away from the wall is scraped forward by the rotatingbrush 13 and then mixed with the air flow sucked into thesuction port 11 through themixed fluid passage 8. Then, it is sucked into thesuction port 11 and collected by the dust collecting unit 4. Further, even when thewall brush 24 is away from the wall, it can be gathered toward the rotatingbrush 13 without sweeping away dust on thefloor 3 away from the wall.

図2および図3に示す吸口ベース2には、混合流体通路8を流下している塵と空気流との混合流体に吸引口11への押し込み力を負荷する送風手段10と、この送風手段10の吐出風を混合流体通路8に導くダクト6が設けられている。つまり、送風手段10の吐出風は、図3の矢印Aで示すように、ダクト6の幅方向両端部から下向きの隆起部9に形成したU字状の透孔9aを通ってUターンするように向きを変えた後、混合流体通路8に導かれる。これにより、混合流体通路8を流下している混合流体に吸引口11への押し込み力として風圧を作用させて、混合流体を確実に吸引口11に吸い込ませることができる。すなわち、混合流体通路8における吸引口11から離れた幅方向両端部8L,8Rあるいはその近傍位置で吸引口11に向けて流下している混合流体に対して、送風手段10の吐出風圧を押し込み力として作用させて、混合流体を確実に吸引口11に吸い込ませる。  Thesuction base 2 shown in FIGS. 2 and 3 has a blowing means 10 for applying a pushing force to thesuction opening 11 to the mixed fluid of the dust flowing down themixed fluid passage 8 and the air flow, and the blowing means 10. Aduct 6 is provided for guiding the discharged air to themixed fluid passage 8. That is, as shown by the arrow A in FIG. 3, the discharge air from the air blowing means 10 makes a U-turn through the U-shaped through-holes 9 a formed in theridges 9 facing downward from both ends in the width direction of theduct 6. Then, it is guided to themixed fluid passage 8. As a result, the mixed fluid can be surely sucked into thesuction port 11 by applying wind pressure to the mixed fluid flowing down themixed fluid passage 8 as a pushing force to thesuction port 11. That is, the force of pushing the discharge wind pressure of the blowing means 10 against the mixed fluid flowing toward thesuction port 11 at the width direction both ends 8L, 8R away from thesuction port 11 in themixed fluid passage 8 or in the vicinity thereof. The mixed fluid is reliably sucked into thesuction port 11.

図3に示すように、壁際ブラシ24の前側には、当該壁際ブラシ24で床面から掻き上げられた塵の浮き上がりを許容するとともに、浮き上がった塵を混合流体通路8に導く案内流路26が設けられているので、壁際ブラシ24で掻き上げられた壁際床面3aの塵を案内流路26から混合流体通路8に導いて、当該混合流体通路8を流下している混合流体に混合させて、吸引口11に向かって流下させることができる。このため、壁際床面3aの塵が壁際ブラシ24で床面3aから掻き上げられた直後に他部材に衝突して、再度、壁際床面3aに落下する不具合を回避して、壁際床面3aの塵を確実に清掃することができる。  As shown in FIG. 3, on the front side of the wall-side brush 24, aguide channel 26 that allows the dust lifted from the floor surface by the wall-side brush 24 and guides the lifted dust to themixed fluid passage 8. Since it is provided, the dust on thefloor surface 3a scraped up by thewall brush 24 is guided from theguide channel 26 to themixed fluid passage 8 and mixed with the mixed fluid flowing down themixed fluid passage 8. , Can flow down toward thesuction port 11. For this reason, it is possible to avoid a problem that the dust on the wall-side floor surface 3a collides with another member immediately after being scraped from thefloor surface 3a by the wall-side brush 24, and falls again on the wall-side floor surface 3a. The dust can be reliably cleaned.

前記実施形態では、回転ブラシ13の左右両端部に壁際ブラシ24を水平軸線C1まわり(矢印R)の回転を可能に取付けて、吸口ベース2を取り囲んでいるバンパ5の幅方向両端部から外側に突出させた構造で説明しているが、回転ブラシ13の左右いずれか一方の端部に壁際ブラシ24を水平軸線C1まわり(矢印R)の回転を可能に取付けて、吸口ベース2を取り囲んでいるバンパ5の幅方向一端部から外側に突出させた構造であってもよい。  In the above-described embodiment, thewall brush 24 is attached to the left and right ends of the rotatingbrush 13 so as to be rotatable around the horizontal axis C1 (arrow R), and outward from the widthwise ends of thebumper 5 surrounding theinlet base 2. Although it has been described with a projecting structure, a wall-side brush 24 is attached to either one of the left and right ends of the rotatingbrush 13 so as to be rotatable around the horizontal axis C1 (arrow R), and surrounds themouthpiece base 2. Thebumper 5 may have a structure protruding outward from one end in the width direction.

また、壁際ブラシ24の刷毛部24Bは、図6および図7のように、壁面清掃刷毛部24b1によって、2つの床面清掃刷毛部24b2が連続するように設けなくてもよい。たとえば、壁面清掃刷毛部24b1の一部ないし全部を無くして、床面清掃刷毛部24b2を2つに分けて設けるようにしてもよい。
また、床面清掃刷毛部24b2は、1つでもよいし、3つ以上設けてもよい。
さらに、図6や図7では、刷毛部24Bを模式的に板状に図示したが、刷毛部24Bは、厚みのある束状に設けるようにしてもよい。
Further, as shown in FIGS. 6 and 7, thebrush portion 24B of thewall brush 24 may not be provided by the wall surface cleaning brush portion 24b1 so that the two floor surface cleaning brush portions 24b2 are continuous. For example, part or all of the wall surface cleaning brush portion 24b1 may be eliminated, and the floor surface cleaning brush portion 24b2 may be provided in two parts.
Moreover, the floor surface cleaning brush part 24b2 may be one, and may provide three or more.
Further, in FIG. 6 and FIG. 7, thebrush portion 24B is schematically illustrated in a plate shape, but thebrush portion 24B may be provided in a thick bundle shape.

電気掃除機の実施形態を示す全体斜視図である。It is a whole perspective view which shows embodiment of a vacuum cleaner.吸口ベースの実施形態をベース部とカバ−に分解して示す斜視図である。It is a perspective view which decomposes | disassembles and shows embodiment of a suction mouth base to a base part and a cover.図2の吸口ベースの幅方向の一端部側を下側から見て拡大して示す斜視図である。It is a perspective view which expands and shows the one end part side of the width direction of the suction mouth base of FIG. 2 seeing from the lower side.回転ブラシと壁際ブラシおよび駆動機構の実施形態を示す斜視図である。It is a perspective view which shows embodiment of a rotating brush, a wall edge brush, and a drive mechanism.図4の回転ブラシと壁際ブラシおよび駆動機構を分解して示す斜視図である。It is a perspective view which decomposes | disassembles and shows the rotating brush of FIG. 4, a wall edge brush, and a drive mechanism.壁際ブラシの実施形態を拡大して示す斜視図である。It is a perspective view which expands and shows embodiment of a wall brush.図6の壁際ブラシをブラシ軸と刷毛部に分解して示す斜視図である。It is a perspective view which decomposes | disassembles and shows the brush near a wall of FIG. 6 to a brush axis | shaft and a brush part.

符号の説明Explanation of symbols

1:掃除機本体
2:吸口ベース
3:床面
6:ダクト
8:混合流体通路
10:送風手段(導入部)
11:塵の吸引口
13:回転ブラシ
24:壁際ブラシ
24A:壁際ブラシ軸(軸部)
24b2:列状の床面清掃刷毛部(刷毛部の一例)
26:案内流路(許容凹所)
29:無毛部
41:基端部
42:外端部
C1:水平な軸線
C2:傾斜線
矢印R:ブラシの回転方向
矢印X:電気掃除機の幅方向
矢印Y:電気掃除機の走行方向
1: Vacuum cleaner body 2: Suction base 3: Floor surface 6: Duct 8: Mixed fluid passage 10: Blowing means (introduction part)
11: Dust suction port 13: Rotating brush 24: Brush at thewall 24A: Brush shaft at the wall (shaft)
24b2: Lined floor surface cleaning brush part (an example of a brush part)
26: Guide channel (allowable recess)
29: Hairless portion 41: Base end portion 42: Outer end portion C1: Horizontal axis C2: Inclined line Arrow R: Direction of rotation of brush Arrow X: Width direction of vacuum cleaner Arrow Y: Travel direction of vacuum cleaner

Claims (4)

Translated fromJapanese
床面を走行可能な掃除機本体と、吸入した空気の空気流に乗せて塵を吸い上げて集塵する吸口ベースとを備え、
前記吸口ベースは、前記掃除機本体と共に床面を走行し、かつ、走行方向に直交する幅方向の両端部が前記掃除機本体の幅方向の両端から突出する大きさを有し、この吸口ベースは、概ね水平な軸線のまわりに回転しながら床面に接触して当該床面の塵を前方に掻き上げる回転ブラシと、この回転ブラシを前記軸線のまわりに回転させる駆動機構と、前記回転ブラシで床面から前方に掻き上げられた塵を空気流に乗せて塵の吸引口に導く流体通路とを備えている電気掃除機において、
前記吸口ベースには、該吸口ベースの少なくとも幅方向の一端から幅方向の外側に突出すると共に、前記駆動機構によって前記軸線のまわりに回転する壁際ブラシが設けられていることを特徴とする電気掃除機。
A vacuum cleaner body that can run on the floor, and a suction base that sucks up dust and collects it in the airflow of the inhaled air.
The mouthpiece base travels on the floor surface together with the cleaner body, and both ends in the width direction perpendicular to the running direction protrude from both ends in the width direction of the cleaner body. A rotating brush that rotates around a substantially horizontal axis and contacts the floor surface to scrape dust on the floor surface forward; a driving mechanism that rotates the rotating brush around the axis; and the rotating brush In a vacuum cleaner comprising a fluid passage that guides the dust scraped forward from the floor surface to the dust suction port by putting it on an air flow,
The suction base is provided with a wall brush that protrudes outward in the width direction from at least one end in the width direction of the suction base and rotates around the axis by the drive mechanism. Machine.
請求項1において、前記壁際ブラシは前記軸線に沿って設けられた軸部を有し、
前記軸部の外周には、該軸部の径方向の外方に向って延設された1ないし複数の刷毛部と、前記軸部の周方向において前記刷毛部に隣接する無毛部とが設けられ、
前記刷毛部は、前記床面に接触する状態において、前記軸部の軸方向の基端部から外端部に近づくに従って、前記軸部の回転方向の遅れ位置から進み位置に配置されるように斜めに設けられていることを特徴とする電気掃除機。
The wall-side brush according to claim 1, wherein the wall-side brush has a shaft portion provided along the axis.
On the outer periphery of the shaft portion, there are one or a plurality of brush portions extending outward in the radial direction of the shaft portion, and a hairless portion adjacent to the brush portion in the circumferential direction of the shaft portion. Provided,
The brush portion is arranged at the advanced position from the delayed position in the rotation direction of the shaft portion as it approaches the outer end portion from the axial base end portion of the shaft portion in a state of contacting the floor surface. The vacuum cleaner characterized by being provided diagonally.
請求項1もしくは2において、前記吸口ベースの幅方向の略中央部に、前記塵の吸引口と、空気を導入する導入部とが設けられ、
前記導入部から導入された空気を前記吸口ベースの両端部に導いた後、前記流体通路に導くダクトが設けられ、
前記ダクトを流れた空気が前記両端部においてUターンするように向きを変えた後、前記流体通路の両端部から前記吸口ベースの幅方向の略中央部に設けられた前記塵の吸引口に向って流れるようにしたことを特徴とする電気掃除機。
In Claim 1 or 2, the suction port for the dust and an introduction portion for introducing air are provided at a substantially central portion in the width direction of the suction port base,
A duct is provided for guiding the air introduced from the introduction part to both ends of the suction base and then leading to the fluid passage.
After changing the direction so that the air flowing through the duct makes a U-turn at both ends, the air flows from both ends of the fluid passage toward the dust suction port provided at the substantially central portion in the width direction of the suction base. A vacuum cleaner characterized by being made to flow.
請求項1、2もしくは3において、前記吸口ベースにおける前記壁際ブラシの前側には、当該壁際ブラシで床面から掻き上げられた塵の浮き上がりを許容するとともに、浮き上がった塵が前記流体通路に導かれるのを許容する許容凹所が前記吸口ベースの下面に形成されていることを特徴とする電気掃除機。  4. The front side of the wall-side brush in the suction base according to claim 1, wherein dust lifted from the floor surface by the wall-side brush is allowed to rise and the raised dust is guided to the fluid passage. An electric vacuum cleaner characterized in that a permissible recess is formed on the lower surface of the suction base.
JP2004063786A2004-03-082004-03-08 Electric vacuum cleanerExpired - LifetimeJP4309785B2 (en)

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