JP2006296684A - Self-propelled vacuum cleaner and vacuum cleaner - Google Patents

Self-propelled vacuum cleaner and vacuum cleaner Download PDF

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Publication number
JP2006296684A
JP2006296684A JP2005121627A JP2005121627A JP2006296684A JP 2006296684 A JP2006296684 A JP 2006296684A JP 2005121627 A JP2005121627 A JP 2005121627A JP 2005121627 A JP2005121627 A JP 2005121627A JP 2006296684 A JP2006296684 A JP 2006296684A
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dust
suction port
vacuum cleaner
receiving wall
blade
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JP2005121627A
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Japanese (ja)
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Kazuya Sudo
一弥 須藤
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Funai Electric Co Ltd
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Funai Electric Co Ltd
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Priority to JP2005121627A priority Critical patent/JP2006296684A/en
Priority to US11/407,867 priority patent/US20060236492A1/en
Publication of JP2006296684A publication Critical patent/JP2006296684A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/24—Floor-sweeping machines, motor-driven
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4038—Disk shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4041—Roll shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4061—Steering means; Means for avoiding obstacles; Details related to the place where the driver is accommodated
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4072—Arrangement of castors or wheels
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation

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  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner and a self-propelled vacuum cleaner, capable of improving the cleaning efficiency (suction efficiency) by preventing litter and dust from scattering rearward and sideways. <P>SOLUTION: The self-propelled vacuum cleaner 1 has an intake 2b on the bottom of a body 2 to face the floor surface, the cleaned surface, for sucking litter and dust. In the vacuum cleaner 1, a back blade 11 and side blades 12 are disposed in contact with the floor surface in the rear and on both sides of the intake 2b for receiving litter and dust without permitting passage of litter and dust. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、被清掃面上のゴミおよび塵埃を吸い込んで被清掃面の清掃を行う自走式電気掃除機および電気掃除機に関するものである。   The present invention relates to a self-propelled electric vacuum cleaner and a vacuum cleaner that inhale dust and dust on a surface to be cleaned to clean the surface to be cleaned.

床面等の被清掃面上のゴミおよび塵埃を吸い込んで被清掃面の清掃を行う電気掃除機には、モータの駆動により自動的に走行する自走式のものと、人等に引っ張られて走行する他走式のものとがある。いずれの電気掃除機においても、モータやファンから成る電動送風機で発生させた吸引力によって、被清掃面に面する吸込口から被清掃面上にあるゴミおよび塵埃を外部空気とともに吸い込んで、フィルタ等から成る集塵体により該外部空気からゴミおよび塵埃を分離して捕集し、清浄化した空気を外部に排気する。   There are two types of electric vacuum cleaners that clean the surface to be cleaned by sucking in dust and dirt on the surface to be cleaned such as the floor surface, etc. There are other types that run. In any vacuum cleaner, dust and dust on the surface to be cleaned are sucked together with external air from the suction port facing the surface to be cleaned by the suction force generated by the electric blower consisting of a motor and a fan, etc. The dust and the dust are separated from the external air and collected by the dust collector, and the cleaned air is exhausted to the outside.

上記のような電気掃除機には、吸込口に回転してゴミおよび塵埃を掻き入れる回転清掃体が設けられ、吸込口の前方や後方にブレードやブラシ等が被清掃面に接するように設けられたものがある（例えば、特許文献１、２参照）。また、吸込口に２つの回転清掃体が前後に並べて設けられ、吸込口の中央でかつ回転清掃体間に掃き出し装置が設けられ、該掃き出し装置の先端に被清掃面に接する軟質繊維が設けられたものがある（例えば、特許文献３参照）。さらに、吸込口の回りにブラシ、スポンジ等の軟質の心材に拭布を被着した素材で形成されかつ下部に複数の切り込みが入れられた着塵部材、または空隙率の高いスポンジ状の多孔質素材で形成された弾性部材が被清掃面に接するように設けられたものがある（例えば、特許文献４、５参照）。
実開平２−９０７６２号公報 特開２００１−１４９２８２号公報 特開平９−１０１４３号公報 特開平１１−２５３３６９号公報 特開２０００−５１０８号公報 The vacuum cleaner as described above is provided with a rotary cleaning body that rotates around the suction port and scrapes dust and dirt, and is provided so that a blade, a brush, etc. are in contact with the surface to be cleaned in front or rear of the suction port. (For example, refer to Patent Documents 1 and 2). In addition, two rotary cleaning bodies are provided side by side at the suction port, a sweeping device is provided at the center of the suction port and between the rotary cleaning bodies, and a soft fiber contacting the surface to be cleaned is provided at the tip of the sweeping device. (See, for example, Patent Document 3). Furthermore, a dusting member formed of a material in which a wiping cloth is applied to a soft core material such as a brush or sponge around the suction port, and a plurality of cuts in the lower part, or a sponge-like porous material having a high porosity There is one in which an elastic member made of a material is provided so as to be in contact with a surface to be cleaned (see, for example, Patent Documents 4 and 5).
Japanese Utility Model Publication No. 2-90762 JP 2001-149282 A Japanese Patent Laid-Open No. 9-10143 JP 11-253369 A JP 2000-5108 A

特許文献１〜３に開示されているように、吸込口の後方や中央にブレードや掃き出し装置等のようなゴミおよび塵埃を受け止め可能な壁体を設けると、ゴミおよび塵埃が後方へ散乱することは防止できるが、例えば小石のような硬いゴミ等が転がる等して両側方へ散乱することは防止できず、該ゴミ等が吸込口から吸い込まれないことがある。特に、人による監視のない状況で使用されることが多い自走式電気掃除機の場合は、一般的に、被清掃面上を走行してゴミおよび塵埃を吸い残しても即座にその場へ戻って吸い直すというような動作を行わないので、ゴミおよび塵埃が被清掃面に残されたままになってしまう。一方、特許文献４、５に開示されているように、吸込口の回りに隙間や切り込みや空隙のあるブラシや着塵部材や弾性部材等のような所定の大きさのゴミおよび塵埃を通過可能な壁体を設けると、所定の大きさより大きなゴミおよび塵埃が前方から壁体を通過して吸込口に接近できず、両側方に散乱する等して吸い残されてしまうことがある。また、所定の大きさ以下のゴミおよび塵埃が前方から壁体を通過して吸込口に接近しても、吸込口から吸い込まれる前に壁体を通過して後方や両側方に散乱する等して吸い残されてしまうことがある。   As disclosed in Patent Documents 1 to 3, if a wall body capable of receiving dust and dust such as a blade or a sweeping device is provided at the rear or center of the suction port, the dust and dust are scattered backward. However, for example, hard dust such as pebbles cannot be prevented from scattering to both sides due to rolling or the like, and the dust may not be sucked from the suction port. In particular, in the case of a self-propelled vacuum cleaner that is often used in situations where there is no human monitoring, generally, even if it runs on the surface to be cleaned and sucks up dust and dirt, it immediately goes to the spot. Since the operation of returning and sucking is not performed, dust and dust remain on the surface to be cleaned. On the other hand, as disclosed in Patent Documents 4 and 5, dust and dust of a predetermined size such as a brush, a dusting member, an elastic member, or the like having a gap, a notch, or a gap can be passed around the suction port. If a large wall is provided, dust and dust larger than a predetermined size may not pass through the wall from the front and approach the suction port, and may be left unsucked by being scattered on both sides. In addition, even if dust and dust of a predetermined size or less pass through the wall from the front and approach the suction port, they pass through the wall before being sucked from the suction port and are scattered to the rear and both sides. May be left behind.

本発明は、上記の問題点を解決するものであって、その課題とするところは、ゴミおよび塵埃の後方と両側方への散乱を防止して清掃率（吸込率）の向上を図ることが可能な電気掃除機および自走式電気掃除機を提供することにある。   The present invention solves the above-mentioned problems, and the object of the present invention is to improve the cleaning rate (suction rate) by preventing scattering of dust and dust to the rear and both sides. It is to provide a possible vacuum cleaner and a self-propelled vacuum cleaner.

本発明では、被清掃面に面する吸込口からゴミおよび塵埃を吸い込む電気掃除機において、吸込口の後方と両側方とに、被清掃面に接してゴミおよび塵埃を受け止める受止壁体を設ける。   In the present invention, in the electric vacuum cleaner that sucks dust and dust from the suction port facing the surface to be cleaned, receiving wall bodies that contact the surface to be cleaned and receive dust and dust are provided at the rear and both sides of the suction port. .

このようにすると、被清掃面上にあるゴミおよび塵埃が、開放されている、即ち受止壁体が設けられていない前方から吸込口に接近することができるとともに、吸込口から吸い込まれる前に後方と両側方へ散乱するのを受止壁体により受け止めて防止することができるので、ゴミおよび塵埃の吸込口からの吸い残しを減少させて清掃率（吸込率）の向上を図ることが可能となる。   In this way, dust and dust on the surface to be cleaned can be opened from the front side where the receiving wall body is not provided, and before being sucked from the suction port. Scattering to the rear and both sides can be received and prevented by the receiving wall body, so it is possible to improve the cleaning rate (suction rate) by reducing the amount of dirt and dust left behind from the suction port. It becomes.

また、本発明の一実施形態では、上記のように後方と両側方とに受止壁体を設けた吸込口に、回転してゴミおよび塵埃を吸込口に掻き入れる回転清掃体を設けている。   Moreover, in one embodiment of the present invention, the rotary cleaning body that rotates and scrapes dust and dust into the suction port is provided in the suction port provided with the receiving wall bodies on the rear side and both sides as described above. .

このようにすると、吸込口近傍にあるゴミおよび塵埃を回転清掃体により吸込口に掻き入れて吸い込み易くすることができ、ゴミおよび塵埃の清掃率の向上を一層図ることが可能となる。また、ゴミおよび塵埃が一旦回転清掃体により吸込口に掻き入れられずに弾き飛ばされても、受止壁体により後方と両側方へ散乱することが防止されて吸込口近傍に残留させられるので、ゴミおよび塵埃を再度回転清掃体により吸込口に掻き入れて吸い込み易くすることができる。   In this way, dust and dust near the suction port can be easily sucked into the suction port by the rotary cleaning body, and the cleaning rate of dust and dust can be further improved. In addition, even if dust and dust are blown off without being swept into the suction port by the rotary cleaning body, they are prevented from scattering back and both sides by the receiving wall body and remain in the vicinity of the suction port. The dust and dust can be easily sucked into the suction port again by the rotary cleaning body.

また、本発明の一実施形態では、吸込口の後方に受止壁体を進行方向に対して垂直でかつ吸込口と平行に設け、吸込口の両側方に受止壁体を互いの間隔が前方に向うに連れて広くなるように傾斜させて設けている。   In one embodiment of the present invention, a receiving wall body is provided behind the suction port in a direction perpendicular to the traveling direction and parallel to the suction port, and the receiving wall bodies are spaced apart from each other on both sides of the suction port. Inclined so as to become wider as it goes forward.

このようにすると、ゴミおよび塵埃を吸込口の両側方に傾斜させて設けた受止壁体により吸込口の中央へ向けて寄せて、吸込口から吸い込み易くすることができる。また、ゴミおよび塵埃が吸込口の後方に設けた受止壁体に受け止められた場合には、ゴミおよび塵埃が該受止壁体に沿って側方へ移動し難くなるとともに、ゴミおよび塵埃が該受止壁体のいずれの位置にあっても吸込口までの距離が一定なので、位置によるゴミおよび塵埃の吸い込みのばらつきを抑制することができる。さらに、例えば小石のような硬いゴミ等が吸込口の後方に設けた受止壁体に当たって側方へ弾き飛ばされた場合には、ゴミ等が吸込口の側方に設けた受止壁体に当たって吸込口の中央前方へ向かって弾き返されるので、ゴミ等を吸込口から吸い込み易くすることができる。   If it does in this way, dust and dust can be made to approach toward the center of a suction port by the receiving wall provided inclining to the both sides of a suction port, and it can make it easy to suck from a suction port. In addition, when dust and dust are received by the receiving wall provided behind the suction port, the dust and dust are difficult to move sideways along the receiving wall, and the dust and dust are Since the distance to the suction port is constant regardless of the position of the receiving wall body, it is possible to suppress variations in dust and dust suction depending on the position. Furthermore, for example, when hard dust such as pebbles hits the receiving wall provided behind the suction port and is blown off to the side, the dust hits the receiving wall provided on the side of the suction port. Since it is bounced back toward the center front of the suction port, dust and the like can be easily sucked from the suction port.

また、本発明の一実施形態では、吸込口の後方に設ける受止壁体と両側方に設ける受止壁体とを、空気を通過可能な微小な隙間だけ離間させて設けている。   Moreover, in one Embodiment of this invention, the receiving wall body provided in the back of a suction inlet and the receiving wall body provided in both sides are provided apart only by the minute clearance which can pass air.

このようにすると、吸込口の後方に設けた受止壁体と両側方に設けた受止壁体の間の微小な隙間から、目立つような大きなゴミおよび塵埃は通過せず、空気が通過して逃げるので、ゴミおよび塵埃の後方と両側方への散乱を防止しつつ、受止壁体の内側、即ち吸込口側にある空間の気圧を整えて、電気掃除機の進行性能への影響を無くすことができる。   In this way, conspicuous large dust and dust do not pass through the minute gap between the receiving wall provided behind the suction port and the receiving wall provided on both sides, and air passes. Therefore, while preventing scattering of dust and dust to the rear and both sides, the air pressure inside the receiving wall, that is, the space on the suction port side, is adjusted to affect the progress of the vacuum cleaner. It can be lost.

さらに、本発明の典型的な実施形態では、被清掃面に面してゴミおよび塵埃を吸い込む吸込口と、該吸込口に設けられ回転してゴミおよび塵埃を該吸込口に掻き入れる回転ブラシとを備え、自動的に走行して被清掃面の清掃を行う自走式電気掃除機において、被清掃面に接してゴミおよび塵埃を受け止めるブレードを、吸込口の後方近傍に走行方向に対して垂直な吸込口の幅全体に渡って吸込口および回転ブラシと平行に設けるとともに、吸込口の両側方近傍に互いの間隔が前方に向うに連れて広くなるように後方に設けるブレードに対して垂直より若干傾斜させかつ後方に設けるブレードから空気が通過可能な微小な隙間だけ離間させて設ける。   Further, in an exemplary embodiment of the present invention, a suction port that sucks dust and dust facing the surface to be cleaned, and a rotating brush that is provided in the suction port and rotates to scrape dust and dust into the suction port; In a self-propelled electric vacuum cleaner that automatically travels and cleans the surface to be cleaned, a blade that touches the surface to be cleaned and receives dust and dirt is perpendicular to the traveling direction in the vicinity of the rear of the suction port. It is provided parallel to the suction port and the rotating brush over the entire width of the suction port, and in the vicinity of the both sides of the suction port, the distance from each other becomes wider toward the front. Slightly inclined and provided with a small gap through which air can pass from a blade provided behind.

このようにすると、被清掃面上にあるゴミおよび塵埃が、ブレードが設けられていない前方から吸込口に接近することができるとともに、吸込口から吸い込まれる前に後方と両側方へ散乱するのをブレードにより受け止めて防止することができる。また、ゴミおよび塵埃をブレードにより吸込口近傍に残留させて、回転ブラシにより吸込口に掻き入れて吸い込み易くすることができる。また、ゴミおよび塵埃を吸込口の両側方に設けたブレードにより吸込口の中央へ向けて寄せて、吸込口から吸い込み易くすることができる。また、ゴミおよび塵埃が吸込口の後方に設けたブレードに受け止められた場合には、ゴミおよび塵埃が該ブレードに沿って側方へ移動し難くなるとともに、ゴミおよび塵埃が該ブレードのいずれの位置にあっても吸込口および回転ブラシまでの距離が一定なので、位置によるゴミおよび塵埃の吸い込みのばらつきを抑制することができる。さらに、例えば小石のような硬いゴミ等が吸込口の後方に設けたブレードに当たって側方へ弾き飛ばされた場合には、ゴミ等が吸込口の側方に設けたブレードに当たって吸込口の中央前方へ向かって弾き返されるので、ゴミ等を吸込口から吸い込み易くすることができる。よって、人による監視のない状況で使用されることが多い自走式電気掃除機において、ゴミおよび塵埃の吸込口からの吸い残しを減少させて清掃率（吸込率）の向上を図ることが可能となる。加えて、吸込口の両側方に設けたブレードが吸込口の後方に設けたブレードに対して垂直より若干傾斜しているだけなので、自走式電気掃除機の走行抵抗に殆どならず、また後方と両側方に設けたブレード間の微小な隙間から空気が通過して逃げるので、ブレードの内側、即ち吸込口側にある空間の気圧が整えられ、自走式電気掃除機の走行性能への影響を無くすことが可能となる。   In this way, dust and dust on the surface to be cleaned can approach the suction port from the front where the blade is not provided, and are scattered to the rear and both sides before being sucked from the suction port. It can be received and prevented by the blade. Also, dust and dust can be left in the vicinity of the suction port with a blade and scraped into the suction port with a rotating brush to facilitate suction. Moreover, dust and dust can be drawn toward the center of the suction port by blades provided on both sides of the suction port, and can be easily sucked from the suction port. In addition, when dust and dust are received by the blade provided behind the suction port, the dust and dust are difficult to move sideways along the blade, and the dust and dust are located at any position of the blade. Even in this case, since the distance to the suction port and the rotating brush is constant, it is possible to suppress variations in dust and dust suction depending on the position. Furthermore, if hard dust such as pebbles hits the blade provided behind the suction port and is blown off to the side, the dust hits the blade provided on the side of the suction port and moves forward to the center front of the suction port. Since it is bounced back, dust and the like can be easily sucked from the suction port. Therefore, in a self-propelled vacuum cleaner that is often used in situations where there is no monitoring by humans, it is possible to improve the cleaning rate (suction rate) by reducing the amount of dirt and dust left behind from the suction port. It becomes. In addition, since the blades provided on both sides of the suction port are only slightly inclined from the vertical with respect to the blades provided behind the suction port, there is almost no running resistance of the self-propelled vacuum cleaner, and the rear Since air passes through a minute gap between the blades on both sides and escapes, the air pressure inside the blade, that is, the space on the suction port side is adjusted, and the influence on the running performance of the self-propelled vacuum cleaner Can be eliminated.

本発明によれば、被清掃面上にあるゴミおよび塵埃が、開放されている前方から吸込口に接近することができるとともに、吸込口から吸い込まれる前に後方と両側方へ散乱するのを受止壁体で受け止めて防止することができるので、ゴミおよび塵埃の吸込口からの吸い残しを減少させて清掃率（吸込率）の向上を図ることが可能となる。   According to the present invention, dust and dust on the surface to be cleaned can approach the suction port from the opened front, and are scattered back and both sides before being sucked from the suction port. Since it can be received and prevented by the stop wall, it is possible to improve the cleaning rate (suction rate) by reducing the amount of dust and dirt left from the suction port.

図１は、本発明の実施形態に係る自走式電気掃除機１の平面図である。図２は、同自走式電気掃除機１の側面図である。図３は、同自走式電気掃除機１の底面図である。図４は、図３における要部拡大図である。自走式電気掃除機（以下、単に「電気掃除機」という。）１は、自動的に走行しながら被清掃面である床面Ｆ上にあるゴミおよび塵埃を吸い込んで床面Ｆの清掃を行う。   FIG. 1 is a plan view of a self-propelled electric vacuum cleaner 1 according to an embodiment of the present invention. FIG. 2 is a side view of the self-propelled electric vacuum cleaner 1. FIG. 3 is a bottom view of the self-propelled electric vacuum cleaner 1. FIG. 4 is an enlarged view of a main part in FIG. The self-propelled electric vacuum cleaner (hereinafter simply referred to as “electric vacuum cleaner”) 1 automatically cleans the floor F by sucking in dust and dust on the floor F to be cleaned. Do.

図１および図２に示すように電気掃除機１の本体２の上部には、開閉可能にカバー３が取り付けられている。カバー３の上部には、電気掃除機１に掃除の開始または停止等を指示する各種キーを含んだ操作部４と、周囲を撮影するカメラ５とが設けられている。カメラ５は、図１および図２ではカバー３に没入した状態にあるが、撮影時には上方に突出する。図１〜図３に示すように本体２の各外周面には、複数のセンサ６が設けられている。センサ６は、光センサ、超音波センサ、および温度センサ等から構成されていて、周囲にある壁、段差、床、設置物等の障害物までの距離を検出したり、人を検出したりする。電気掃除機１は、センサ６からの出力に基づいて周囲の障害物等との接触を回避しながら走行する。   As shown in FIGS. 1 and 2, a cover 3 is attached to the upper portion of the main body 2 of the vacuum cleaner 1 so as to be openable and closable. On the upper part of the cover 3, an operation unit 4 including various keys for instructing the vacuum cleaner 1 to start or stop cleaning, and a camera 5 for photographing the surroundings are provided. The camera 5 is immersed in the cover 3 in FIGS. 1 and 2, but protrudes upward at the time of photographing. As shown in FIGS. 1 to 3, a plurality of sensors 6 are provided on each outer peripheral surface of the main body 2. The sensor 6 includes an optical sensor, an ultrasonic sensor, a temperature sensor, and the like, and detects a distance to an obstacle such as a surrounding wall, a step, a floor, and an installed object, or detects a person. . The vacuum cleaner 1 travels while avoiding contact with surrounding obstacles based on the output from the sensor 6.

図２および図３に示すように本体２の底部の中央両側には、走行輪７が１つずつ設けられている。走行輪７間の前側（各図において左側）には、３つの従動輪８が設けられていて、後側（各図において右側）には、２つの従動輪８が設けられている。各走行輪７は、図示しない別個のモータの駆動により独立して回転する。各走行輪７が独立して回転することにより、該走行輪７とともに各従動輪８が床面Ｆを転動して、電気掃除機１が本体２の向きを変えつつ走行して行く。本体２の底部の中央には、電気掃除機１の駆動源である図示しないバッテリの取付部２ａが設けられている。   As shown in FIGS. 2 and 3, one traveling wheel 7 is provided on each side of the center of the bottom of the main body 2. Three driven wheels 8 are provided on the front side (left side in each figure) between the traveling wheels 7, and two driven wheels 8 are provided on the rear side (right side in each figure). Each traveling wheel 7 rotates independently by driving a separate motor (not shown). When each traveling wheel 7 rotates independently, each driven wheel 8 rolls on the floor surface F together with the traveling wheel 7, and the vacuum cleaner 1 travels while changing the direction of the main body 2. At the center of the bottom of the main body 2, a battery mounting portion 2 a (not shown) that is a drive source of the vacuum cleaner 1 is provided.

本体２の底部の前方両側には、サブ回転ブラシ９が１つずつ設けられている。各サブ回転ブラシ９は、図示しない別個のモータの駆動により床面Ｆと平行な面内で本体２の中央に向かって回転する。即ち、図３で上側にあるサブ回転ブラシ９は反時計回りに回転し、図３で下側にあるサブ回転ブラシ９は時計回りに回転する。このように各サブ回転ブラシ９が回転することにより、床面Ｆ上にあるゴミおよび塵埃が図３に斜線で示す本体２の中央下部の範囲に掻き集められる。   One sub-rotating brush 9 is provided on each of the front sides of the bottom of the main body 2. Each sub-rotating brush 9 rotates toward the center of the main body 2 in a plane parallel to the floor surface F by driving a separate motor (not shown). That is, the sub rotary brush 9 on the upper side in FIG. 3 rotates counterclockwise, and the sub rotary brush 9 on the lower side in FIG. 3 rotates clockwise. As the sub-rotating brushes 9 rotate in this way, dust and dust on the floor surface F are collected in the area at the lower center of the main body 2 indicated by hatching in FIG.

本体２の底部の後方には、床面Ｆに面して外部空気とともにゴミおよび塵埃を吸い込む吸込口２ｂが設けられている。吸込口２ｂには、メイン回転ブラシ１０が本体２の走行（進行）方向Ｘに対して垂直でかつ吸込口２ｂと平行に架設されている。メイン回転ブラシ１０は、外周面に複数のゴム製のブレード１０ａが螺旋状に設けられていて、図示しないモータの駆動により走行方向Ｘに対して平行でかつ床面Ｆに対して垂直な面内で本体２の前方から後方に向かって回転する。即ち、図２でメイン回転ブラシ１０は反時計回りに回転する。このようにメイン回転ブラシ１０が回転することにより、サブ回転ブラシ９で中央に掻き集められたゴミおよび塵埃が吸込口２ｂに掻き入れられる。メイン回転ブラシ１０は、本発明における回転清掃体および回転ブラシの一実施形態を構成する。   A suction port 2b that faces the floor surface F and sucks dust and dust together with external air is provided behind the bottom of the main body 2. A main rotary brush 10 is installed in the suction port 2b so as to be perpendicular to the traveling (traveling) direction X of the main body 2 and in parallel with the suction port 2b. The main rotating brush 10 is provided with a plurality of rubber blades 10a spirally on the outer peripheral surface, and is parallel to the running direction X and perpendicular to the floor surface F by driving a motor (not shown). Thus, the main body 2 rotates from the front to the rear. That is, in FIG. 2, the main rotating brush 10 rotates counterclockwise. As the main rotating brush 10 rotates in this manner, dust and dust collected in the center by the sub rotating brush 9 are scraped into the suction port 2b. The main rotating brush 10 constitutes an embodiment of the rotating cleaning body and rotating brush in the present invention.

図２〜図４に示すように吸込口２ｂの後方近傍には、ゴム製のブレード１１が、走行方向Ｘに対して垂直な吸込口２ｂの幅Ｗ全体に渡って吸込口２ｂおよびメイン回転ブラシ１０と平行に設けられている。吸込口２ｂの左右両側方近傍には、ゴム製のブレード１２が、互いの間隔が前方に向うに連れて広くなるようにブレード１１に対して若干傾斜させかつブレード１１から微小な隙間１３だけ離間させて設けられている。本例では、各側方のブレード（以下、「サイドブレード」という。）１２と後方のブレード（以下、「バックブレード」という。）１１とのなす角度θは、１００°程度に設定されている。また、隙間１３の大きさは、空気を通過させ目立つような所定の大きさ以上のゴミおよび塵埃を通過させないように、２〜３ｍｍ程度に設定されている。各ブレード１１、１２は、図２に示すように床面Ｆに接してゴミおよび塵埃を受け止める。ブレード１１、１２は、本発明における受止壁体およびブレードの一実施形態を構成する。   As shown in FIGS. 2 to 4, in the vicinity of the rear of the suction port 2 b, a rubber blade 11 is disposed over the entire width W of the suction port 2 b perpendicular to the traveling direction X and the main rotating brush. 10 in parallel. In the vicinity of the left and right sides of the suction port 2b, the rubber blades 12 are slightly inclined with respect to the blade 11 so that the distance between them becomes wider toward the front, and are separated from the blade 11 by a minute gap 13. Is provided. In this example, the angle θ formed between each side blade (hereinafter referred to as “side blade”) 12 and the rear blade (hereinafter referred to as “back blade”) 11 is set to about 100 °. . Further, the size of the gap 13 is set to about 2 to 3 mm so that dust and dust of a predetermined size or more that are conspicuous through the air are not allowed to pass. As shown in FIG. 2, each blade 11, 12 is in contact with the floor surface F and receives dust and dust. The blades 11 and 12 constitute an embodiment of the receiving wall body and the blade in the present invention.

図５は、電気掃除機１のカバー３を開けた状態を示す平面図である。本体２のカバー３で覆われる部分には、電動送風機１４を収納する収納部２ｃと、集塵体１７を着脱自在に装着する装着部２ｄとが設けられている。収納部２ｃと装着部２ｄとは、隔壁２ｅによって区切られていて、隔壁２ｅに形成された図示しない空隙および連通孔を介して連通している。電動送風機１４は、モータ１５とファン１６とから構成されていて、モータ１５の駆動によりファン１６を回転させて吸引力を発生する。   FIG. 5 is a plan view showing a state where the cover 3 of the electric vacuum cleaner 1 is opened. The part covered with the cover 3 of the main body 2 is provided with a storage part 2c for storing the electric blower 14 and a mounting part 2d for detachably mounting the dust collector 17. The storage portion 2c and the mounting portion 2d are separated by a partition wall 2e and communicate with each other through a gap and a communication hole (not shown) formed in the partition wall 2e. The electric blower 14 includes a motor 15 and a fan 16, and generates a suction force by rotating the fan 16 by driving the motor 15.

集塵体１７は、底面に吸気孔１８ａが形成されかつ収納部２ｃ側を向いた側面に排気孔１８ｂが形成されたダストボックス１８と、空気を通過させかつ所定の大きさ以上のゴミおよび塵埃を通過させないフィルタ１９と、フィルタ１９を保持してダストボックス１８に排気孔１８ｂを覆うように着脱自在に装着されるフィルタホルダ２０とから構成されている。ダストボックス１８の吸気孔１８ａは、本体２の吸込口２ｂ（図３）と連通し、排気孔１８ｂは隔壁２ｅの空隙および連通孔と電動送風機１４とを介して収納部２ｃと連通している。   The dust collector 17 includes a dust box 18 having an intake hole 18a formed on the bottom surface and an exhaust hole 18b formed on the side surface facing the storage portion 2c, and dust and dust having a predetermined size or more that allow air to pass therethrough. The filter 19 is not allowed to pass through, and the filter holder 20 is detachably attached to the dust box 18 so as to cover the exhaust hole 18b while holding the filter 19. The suction hole 18a of the dust box 18 communicates with the suction port 2b (FIG. 3) of the main body 2, and the exhaust hole 18b communicates with the storage portion 2c via the gaps and communication holes of the partition wall 2e and the electric blower 14.

上記の他にも電気掃除機１には、各部を制御する制御回路、各部に電力を供給する電源回路、およびバッテリ等が設けられているが、ここでは図示および説明を省略する。   In addition to the above, the vacuum cleaner 1 is provided with a control circuit that controls each part, a power supply circuit that supplies power to each part, a battery, and the like, but illustration and description thereof are omitted here.

上記電気掃除機１において、カバー３を閉じて、前述の操作部４を操作して、電気掃除機１に掃除を開始させると、電気掃除機１は、前述したように障害物を避けながら自動的に走行するとともに、各サブ回転ブラシ９およびメイン回転ブラシ１０を回転させ、かつ電動送風機１４で吸引力を発生させる。すると、床面Ｆ上にあるゴミおよび塵埃が、各サブ回転ブラシ９により本体２の中央下部に掻き集められ、メイン回転ブラシ１０により吸込口２ｂに掻き入れられ、電動送風機１４で発生させた吸引力により外部空気とともに吸込口２ｂから吸い込まれる。そして、吸い込まれた外部空気とゴミおよび塵埃は、ダストボックス１８の吸気孔１８ａを通ってダストボックス１８内に流入し、ダストボックス１８の排気孔１８ｂ近傍にあるフィルタ１９により外部空気から所定の大きさ以上のゴミおよび塵埃が分離され、該ゴミおよび塵埃がダストボックス１８内およびフィルタ１９に捕集され、清浄化された空気が排気孔１８ｂ、隔壁２ｅ、電動送風機１４、収納部２ｃ、および本体２とカバー３の間を通って外部に排気される。   In the vacuum cleaner 1, when the cover 3 is closed and the operation unit 4 is operated to start the cleaning of the vacuum cleaner 1, the vacuum cleaner 1 automatically avoids obstacles as described above. The sub rotary brush 9 and the main rotary brush 10 are rotated, and the electric blower 14 generates a suction force. Then, the dust and dust on the floor surface F are scraped to the lower center of the main body 2 by each sub-rotating brush 9, scraped into the suction port 2 b by the main rotating brush 10, and the suction force generated by the electric blower 14. Is sucked from the suction port 2b together with external air. Then, the sucked external air, dust and dust flow into the dust box 18 through the intake hole 18a of the dust box 18, and the filter 19 near the exhaust hole 18b of the dust box 18 has a predetermined size or more from the external air. The dust and dust are separated, and the dust and dust are collected in the dust box 18 and the filter 19, and the purified air is exhausted through the exhaust holes 18 b, the partition wall 2 e, the electric blower 14, the storage portion 2 c, and the main body 2 and the cover 3. It is exhausted to the outside through.

上記清掃動作の際、吸込口２ｂの後方と両側方にブレード１１、１２を設けているので、床面Ｆ上にあるゴミおよび塵埃が、開放されている、即ちブレード１１、１２が設けられていない前方から吸込口２ｂに接近することができるとともに、吸込口２ｂから吸い込まれる前に後方と両側方へ散乱するのをブレード１１、１２により受け止めて防止することができる。また、ブレード１１、１２を吸込口２ｂの近傍に設けかつバッグブレード１１を吸込口２ｂの幅Ｗ全体に渡って設けているので、ゴミおよび塵埃をブレード１１、１２により吸込口２ｂ近傍に残留させて、メイン回転ブラシ１０により吸込口２ｂに掻き入れて吸い込み易くすることができる。また、ゴミおよび塵埃が一旦メイン回転ブラシ１０により吸込口２ｂに掻き入れられずに弾き飛ばされても、ブレード１１、１２により吸込口２ｂ近傍に残留させられるので、ゴミおよび塵埃を再度メイン回転ブラシ１０により吸込口２ｂに掻き入れて吸い込み易くすることができる。   During the cleaning operation, since the blades 11 and 12 are provided at the rear and both sides of the suction port 2b, dust and dust on the floor surface F are opened, that is, the blades 11 and 12 are provided. It is possible to approach the suction port 2b from the front which is not present, and to prevent the blades 11 and 12 from scattering to the rear and both sides before being sucked from the suction port 2b. Further, since the blades 11 and 12 are provided in the vicinity of the suction port 2b and the bag blade 11 is provided over the entire width W of the suction port 2b, dust and dust are left in the vicinity of the suction port 2b by the blades 11 and 12. Thus, the main rotating brush 10 can be easily sucked into the suction port 2b. Further, even if dust and dust are once blown off by the main rotating brush 10 without being scraped into the suction port 2b, they are left in the vicinity of the suction port 2b by the blades 11 and 12, so that dust and dust are again removed from the main rotating brush. 10 can be made to be sucked into the suction port 2b.

また、サイドブレード１２を互いの間隔が前方に向うに連れて広くなるように傾斜させて設けているので、質量の軽い塵埃等が本体２と床面Ｆとの間の空間を舞って、図３の斜線で示す範囲から側方へ出ても、該塵埃等を各サイドブレード１２により吸込口２ｂの中央へ向けて寄せて、吸込口２ｂから吸い込み易くすることができる。また、バックブレード１１を走行方向Ｘに対して垂直でかつ吸込口２ｂおよびメイン回転ブラシ１０と平行に設けているので、ゴミおよび塵埃がバックブレード１１に受け止められた場合には、ゴミおよび塵埃がバックブレード１１に沿って側方へ移動し難くなるとともに、ゴミおよび塵埃がバックブレード１１のいずれの位置にあっても吸込口２ｂおよびメイン回転ブラシ１０までの距離が一定なので、位置によるゴミおよび塵埃の吸い込みのばらつきを抑制することができる。さらに、例えば小石のような硬いゴミ等がバックブレード１１に当たって側方へ弾き飛ばされた場合には、ゴミ等がサイドブレード１２に当たって吸込口２ｂの中央前方へ向かって弾き返されるので、ゴミ等を吸込口２ｂから吸い込み易くすることができる。   In addition, since the side blades 12 are inclined so that the distance between them increases toward the front, dust or the like having a small mass dances in the space between the main body 2 and the floor surface F. Even if it goes out from the range indicated by the oblique line 3, the dust or the like can be drawn toward the center of the suction port 2 b by the side blades 12 and can be easily sucked from the suction port 2 b. Further, since the back blade 11 is provided perpendicular to the traveling direction X and in parallel with the suction port 2b and the main rotating brush 10, when the dust and dust are received by the back blade 11, the dust and dust are It becomes difficult to move sideways along the back blade 11 and the distance to the suction port 2b and the main rotating brush 10 is constant regardless of the position of the back blade 11 where the dust and dust are located. Variations in suction can be suppressed. Further, for example, when hard dust such as pebbles hits the back blade 11 and is blown off to the side, the dust hits the side blade 12 and bounces back toward the center front of the suction port 2b. It is possible to facilitate the suction from the suction port 2b.

上記の結果、自走式電気掃除機１が人による監視のない状況で使用されかつゴミおよび塵埃の吸い残しを生じた際に即座に吸い直し動作を行わなくても、ゴミおよび塵埃の吸込口２ｂからの吸い残しを減少させて清掃率（吸込率）の向上を図ることが可能となる。   As a result of the above, when the self-propelled vacuum cleaner 1 is used in a situation where there is no monitoring by a human and the dust and dust are left unabsorbed, the dust and dust suction port does not have to be immediately re-sucked. It becomes possible to improve the cleaning rate (suction rate) by reducing the amount of unsucked material from 2b.

加えて、サイドブレード１２がバックブレード１１に対して垂直より若干傾斜しているだけなので、自走式電気掃除機１の走行抵抗に殆どならない。また、バックブレード１１と各サイドブレード１２との間に微小な隙間１３を設けているので、該隙間１３から目立つような大きなゴミおよび塵埃は通過せず、略空気だけが通過して逃げるようになり、ゴミおよび塵埃の後方と両側方への散乱を防止しつつ、ブレード１１、１２の内側、即ち吸込口２ｂ側にある空間の気圧が整えられる。よって、ブレード１１、１２により本体２の進行や旋回が困難になる等といった、自走式電気掃除機１の走行性能への影響を無くすことが可能となる。   In addition, since the side blade 12 is only slightly inclined from the vertical with respect to the back blade 11, the running resistance of the self-propelled electric vacuum cleaner 1 is hardly reached. Further, since the minute gaps 13 are provided between the back blade 11 and the side blades 12, large dust and dust that stand out from the gaps 13 do not pass, and only substantially air passes and escapes. Thus, the atmospheric pressure of the space inside the blades 11 and 12, that is, on the suction port 2 b side is adjusted while preventing dust and dust from scattering back and both sides. Therefore, it becomes possible to eliminate the influence on the running performance of the self-propelled electric vacuum cleaner 1, such as the blades 11 and 12 making it difficult to advance and turn the main body 2.

本発明は、以上述べた実施形態以外にも種々の形態を採用することができる。例えば、以上の実施形態では、受止壁体として、ゴム製のブレード１１、１２を用いた例を挙げているが、本発明はこれのみに限定するものではなく、これ以外に、例えば合成樹脂製のブレードや、剛性を有する毛状体等が隙間無く集められたブラシ等のようなものを用いてもよい。つまり、受止壁体としては、ゴミおよび塵埃を通過させずに吸込口側に受け止めることができるものであればよい。   The present invention can adopt various forms other than the embodiment described above. For example, in the above embodiment, the example using the rubber blades 11 and 12 as the receiving wall body is given. However, the present invention is not limited to this example. You may use things, such as a brush in which the braid | blade made from manufacturing, the hair which has rigidity, etc. were collected without gaps. That is, as the receiving wall body, any material can be used as long as it can be received on the suction port side without passing dust and dust.

また、以上の実施形態では、モータの駆動により電気掃除機１の前進の抵抗にならない反時計回りに回転するメイン回転ブラシ１０の後方および両側方にブレード１１、１２を設けた例を挙げているが、本発明はこれのみに限定するものではなく、これ以外に、例えばモータの駆動または電動送風機の吸引力により電気掃除機の前進の抵抗になる時計回りまたは抵抗にならない反時計回りに回転する回転清掃体の後方および両側方にブレード等の受止壁体を設けるようにしてもよい。   Moreover, in the above embodiment, the example which provided the braid | blades 11 and 12 in the back and both sides of the main rotating brush 10 which rotates counterclockwise which does not become the resistance of advance of the vacuum cleaner 1 by the drive of the motor is given. However, the present invention is not limited to this, and in addition to this, the motor rotates or rotates counterclockwise that does not become resistance due to the forward force of the vacuum cleaner due to the driving force of the motor or the suction force of the electric blower. You may make it provide receiving wall bodies, such as a braid | blade, in the back and both sides of a rotary cleaning body.

さらに、以上の実施形態では、自走式電気掃除機１に、本発明を適用した例を挙げているが、本発明はこれ以外にも、例えば人等に引っ張られて走行する他走式の電気掃除機や、キャニスタ型の本体とは別に吸込口体を有する電気掃除機等のような、一般の電気掃除機に適用することが可能である。   Furthermore, although the example which applied this invention to the self-propelled electric vacuum cleaner 1 is given in the above embodiment, the present invention is not limited to this. The present invention can be applied to a general vacuum cleaner such as a vacuum cleaner or a vacuum cleaner having a suction port body separately from a canister-type main body.

本発明の実施形態に係る自走式電気掃除機の平面図である。It is a top view of the self-propelled electric vacuum cleaner concerning the embodiment of the present invention. 同自走式電気掃除機の側面図である。It is a side view of the self-propelled electric vacuum cleaner. 同自走式電気掃除機の底面図である。It is a bottom view of the self-propelled electric vacuum cleaner. 同自走式電気掃除機の図３における要部拡大図である。It is a principal part enlarged view in FIG. 3 of the self-propelled electric vacuum cleaner. 同自走式電気掃除機のカバーを開けた状態を示す平面図である。It is a top view which shows the state which opened the cover of the self-propelled electric vacuum cleaner.

符号の説明Explanation of symbols

１ 自走式電気掃除機
２ｂ 吸込口
１０ メイン回転ブラシ
１１ バックブレード
１２ サイドブレード
１３ 隙間
Ｆ 床面
Ｗ 吸込口の幅
Ｘ 走行（進行）方向

DESCRIPTION OF SYMBOLS 1 Self-propelled vacuum cleaner 2b Suction port 10 Main rotation brush 11 Back blade 12 Side blade 13 Crevice F Floor
W Width of suction port X Traveling (traveling) direction

Claims (5)

被清掃面に面してゴミおよび塵埃を吸い込む吸込口と、該吸込口に設けられ回転してゴミおよび塵埃を該吸込口に掻き入れる回転ブラシとを備え、自動的に走行して被清掃面の清掃を行う自走式電気掃除機において、
被清掃面に接してゴミおよび塵埃を受け止めるブレードを、前記吸込口の後方近傍に走行方向に対して垂直な前記吸込口の幅全体に渡って前記吸込口および前記回転ブラシと平行に設けるとともに、前記吸込口の両側方近傍に互いの間隔が前方に向うに連れて広くなるように前記後方に設けるブレードに対して垂直より若干傾斜させかつ前記後方に設けるブレードから空気が通過可能な微小な隙間だけ離間させて設けたことを特徴とする自走式電気掃除機。 A suction port for sucking dust and dust facing the surface to be cleaned, and a rotating brush provided at the suction port and rotating to scrape dust and dust into the suction port and automatically running In the self-propelled vacuum cleaner that cleans
A blade that contacts the surface to be cleaned and receives dust and dust is provided in the vicinity of the rear of the suction port in parallel with the suction port and the rotating brush over the entire width of the suction port perpendicular to the traveling direction, A minute gap in the vicinity of both sides of the suction port that is slightly inclined from the vertical with respect to the blade provided at the rear so that the distance from each other increases toward the front and through which air can pass from the blade provided at the rear. A self-propelled electric vacuum cleaner characterized by being provided only apart. 被清掃面に面する吸込口からゴミおよび塵埃を吸い込む電気掃除機において、
前記吸込口の後方と両側方とに、被清掃面に接してゴミおよび塵埃を受け止める受止壁体を設けたことを特徴とする電気掃除機。 In a vacuum cleaner that sucks in dust and dirt from the suction port facing the surface to be cleaned,
A vacuum cleaner characterized in that receiving wall bodies are provided on the rear side and both sides of the suction port so as to contact the surface to be cleaned and receive dust and dust. 請求項２に記載の電気掃除機において、
前記吸込口に、回転してゴミおよび塵埃を前記吸込口に掻き入れる回転清掃体を設けたことを特徴とする電気掃除機。 The vacuum cleaner according to claim 2,
A vacuum cleaner comprising a rotary cleaning body that rotates and scrapes dust and dust into the suction port. 請求項２または請求項３に記載の電気掃除機において、
前記吸込口の後方に前記受止壁体を進行方向に対して垂直でかつ前記吸込口と平行に設け、前記吸込口の両側方に前記受止壁体を互いの間隔が前方に向うに連れて広くなるように傾斜させて設けたことを特徴とする電気掃除機。 In the vacuum cleaner of Claim 2 or Claim 3,
The receiving wall body is provided behind the suction port in a direction perpendicular to the advancing direction and in parallel with the suction port, and the receiving wall body is disposed on both sides of the suction port as the distance between the receiving wall body is directed forward. A vacuum cleaner characterized by being inclined so as to be wide. 請求項２ないし請求項４のいずれかに記載の電気掃除機において、
前記吸込口の後方に設ける前記受止壁体と両側方に設ける前記受止壁体とを、空気が通過可能な微小な隙間だけ離間させて設けたことを特徴とする電気掃除機。
The vacuum cleaner according to any one of claims 2 to 4,
An electric vacuum cleaner characterized in that the receiving wall body provided behind the suction port and the receiving wall body provided on both sides are separated by a minute gap through which air can pass.
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JP2014176508A (en) * 2013-03-14 2014-09-25 Toshiba Corp Vacuum cleaner
JP2016514582A (en) * 2013-04-15 2016-05-23 アクティエボラゲット エレクトロラックス Robot vacuum cleaner
JP2016106007A (en) * 2016-03-24 2016-06-16 シャープ株式会社 Self-propelled vacuum cleaner
US10918250B2 (en) 2016-10-19 2021-02-16 Samsung Electronics Co., Ltd. Robot vacuum cleaner
JP2017131692A (en) * 2017-03-29 2017-08-03 日立アプライアンス株式会社 Autonomous travel type cleaner

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